5546 5550.output

* GB785954 (A)

Description: GB785954 (A) ? 1957-11-06

Musical gigarette lighter

Description of GB785954 (A)

PATENT SPECIFICATION Date of Application and Filing Complete k t \ Specification: Aug12, 1955. Application made in Switzerland on Aug 14, 1954. Complete Specification Published: Nov 6, 1957. Index at Acceptance:-Classes 75 ( 3), F 13; and 83 ( 1), F 10. International Classification:-A 24 f, Gi O f. COMPLETE SPECIFICATION Musical Gigarette Lighter. 1, Gui Do REUGE, a Swiss citizen, residing at No 21, sue des Rasses, Ste-Croix, Canton de Vaud in the Confederation of Switzerland, do hereby declare the invention, for which I pray that a patent may be granted to me, and the method by which it is to be performed, to be particularly described in and by the following statement:- The present invention refers to a musical cigarette lighter. According to the present invention there is provided a lighter comprising a casing, a spring driven musical movement therein, cover means for the wick of the lighter, the cover means being pivoted to said casing, and means for winding the spring of the musical movement, the winding means being arranged to be actuated by displacing said cover means. For a better understanding of the invention and to show how the same may be carried into effect reference will now be made to the accompanying drawings, in which each of Figs 1 to 4 is a cross-section of a different embodiment of the musical Xighter. The same numerals are employed for designating the same members in all of the embodiments of Figs 1 to 4 The numeral 1 in Fig 1 designates the outer casing of the lighter the interior of which contains the musical movement 2, numeral 3 being the body of the lighter incorporating the ignition device The arrangement comprises an

actuating lever 4 pivotably mounted at 5; one end of the lever 4 is formed so as to cover the ignition wick when the lighter is not in use (normal position). The lighter also contains means for winding the spring of the musical movement when the actuating lever 4 is pressed down to ignite the wick These means comprise a push rod 7 passing through the interior of the body 3 of the lighter, the lower end of rod 7 S connected to the winding lever 785,954 No 23 '25,55. 8, rigidly fixed to the axle 9 on which the spring of the musical movement 2 is mounted The upper end of the push rod 7 engages with the actuating lever 4 The push rod 7 is connected with the lever 850 through a pin 9 ', which latter is slidable in a slot in the lever 8. To actuate the lighter, the lever 4 is depressed, this pushes the rod 7 downwards the lever 8 is caused partially to rotate til 155 it is in the position indicated by the dotted lines in Fig 1, in this position the spring is fully wound On the lever 4 being released, the musical movement is set in operation and the lever 8 returns to its 6 initial position and at the same time the push-rod is moved upwards, the upper end being in contact with the actuating lever 4. In the embodiment of the invention represented in Fig 2, the lower end of the 65 push-rod 7 is provided with a rack 10 engaging with a pinion 11 The pinion 11 is provided on the spindle or axle 9 on which the spring of the musical movement is mounted The upper end of the push-rod 70 7 is in contact with the lever 4, the operation being similar to that described above, relating to Fig 1. The lighter represented in Fig 3 comprises a cover 12, pivotally attached to the 75 case 1 at 13, and normally held in position when closed by means not shown in the drawing A push rod 7 ' passing through the interior of the body 3 of the lighter is connected at its upper end with the cover g 12 by means of a pin that can slide in a slot 14 in the cover The lower end of the push rod is connected to a lever 8 ' in a similar way as the lever 8 in Fig 1. The spring of the musical movement is 85 wound up when closing the cover 12 The push rod 7 ' is pushed downwards and actuates the lever 8 ' till it reaches the position indicated by the dotted lines, the spring is then fully wound up 90 (Price 3/6) 785,954 By releasing the catch of the cover 12 the latter is opened by the action of the push rod 7 ', which is pushed up by the lever 8 ' as the spring unwinds and the musical movement plays Once the lid 12 is open, the wick 15 can be ignited in the usual way from the serrated wheel 16. In a further variation of the embodiment of the invention, the spring of the musical movement can be mounted within the usual cylinder provided with pins which co-operate with the vibrating blades of the movement.

In the embodiment depicted in Fig 4, the winding lever is integral with the barrel of the spring (not shown) which is rotatable instead of being attached to the spindle of the spring In this case the musical movement is set in motion when the actuating lever is operated This embodiment comprises a push rod 7, one end of which engages with the actuating lever 4 The other end co-operating with a winding lever 17, pivoted at 18 and under the action of a tension spring 19 The lever 17 is pivotably attached to a crank lever 20 which in its turn is connected with a lever 21 rotatably mounted on a stationary axle 22 This lever 21 is provided with a ratchet pawl 23. The pawl 23 engages with a ratchet wheel 24 rigidly attached to the barrel of the spring The wheel 24 engages with a retaining ratchet 25 When the lever 4 is depressed, the push rod moves downwards and the ratchet 23 is moved in the counter clockwise direction, as seen in Fig 4, the wheel 24 is thus rotated through a preselected angle required to wind up the spring When the actuating lever 4 returns to its position indicated in the drawing, the spring 19 assures the return of the winding lever 17 and its associated members into the position shown in the drawing The ratchet wheel 24 is retained in its new position by the ratchet pawl 25. In the latter stage of the downward movement of the push rod 7, this rod engages with a lever 26 which releases the musical movement Thus by actuating the lever 4 the spring of the musical movement is wound, and at the end of the path of travel of the lever, the musical movement is set in motion by a mechanism, of which only the lever 26 is shown in the drawing. SS In order to prevent overwinding the spring of the musical movement when the lighter will not ignite, the spring in the barrel is mounted with a friction device The spring may be rigidly fixed to a ring which latter is in frictional contact with the wall of the barrel As long as the tension of the spring is maintained within certain limits, the ring is rotated when the barrel is rotated, thereby tensioning the spring When the tension in the spring exceeds this predetermined limti, the ring slips in the barrel. In another varation of the invention in which the members for the ignition of the wick can be actuated by means of a movable member of the lighter, a push-button can 70 be mounted on the casing to start the musical movement and at the same time means can be provided to ignite the wick. Each of the described embodiments can also be combined with a watch movement 75 with a gearing means between the winding mechanism of the watch movement and the actuating mechanism of the lighter The musical movement can be provided separately or in combination with the watch 80 movement.

In order to spare the spring of the watch movement, the winding means can be provided with an automatic winding mechanism like those which are used in wrist watches, 83 i.e the spring of the wrist watch being wound in consequence of any movement of the arm upon which the watch is carried.

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* GB785955 (A)

Description: GB785955 (A) ? 1957-11-06

Improvements relating to axial-flow air compressors


PATENT SPECIFICATION 7859955 Date of Application and filing Complete Specification: Nov 21, 1955. Application made in United States of America on Dec 3, 1954. Complete Specification Published: Nov 6, 1957. Index at Acceptance:-Class 110 ( 1), D 2 J. International Classification:-FO 4 d. COMPLETE SPECIFICATION Improvements relating to Axial-flow Air Compressors. We, GENERAL MOTORS CORPORATION, a Company incorporated under the laws of the State of Delaware in the United States of America, of Grand Boulevard in the City of Detroit, State of Michigan, in the United States of America (Assignees of JOHN B. WHEATLEY), do hereby declare the invention for which we pray that a patent may be granted to us and the method by which it 1 ois to be performed, to be particularly described in and by the following statement: - This invention relates to axial flow air compressors such as those

suitable for aircraft gas turbine engines, and is more particularly concerned with air bleed valve apparatus for such compressors. The scope of the invention is defined by the appended claims; how the invention may be carried out is particularly described below with reference to tile accompanying drawings in which: Fig 1 is a side elevation of an aircraft gas turbine engine incorporating the invention; Fig 2 is an enlarged partial section through an intermediate stage of the compressor portion of the engine taken substantially on the plane indicated by the line 2-2 of Fig l; and Fig 3 is a partial section taken substantially on the plane indicated by the line 3-3 of Fig 2. Referring now to the drawing and more particularly to Fig 1, the gas turbine engine shown includes a multi-stage axial flow air compressor 10 that discharges through a diffuser 12 into combustion chambers 14 which are supplied with fuel by a fuel manifold 16 An axial flow turbine 18 for drivX 4 ing the compressor 10 receives the products of combustion from the combustion chambers 14 and discharges them to atmosphere through an exhaust nozzle 20. To vent compressed air from an intermediate stage to improve compressor performance during starting and low speed operation, an air bleed valve apparatus is provided Referring to the remaining figures, the compressor 10 includes a cylindrical outer casing formed by four arcuate (quad 50 rantal) sections 22 that are retained in assembled relation by longitudinal rows of bolts 24 and nuts 26 A rotor 28 is housed in the casing and carries axially-spaced annular rows of blades 30 Stator vane assem 55 blies are supported on the cylindrical inner surface of the compressor outer casing in alternating relation with the rows of rotor blades. Each of the stator vane assemblies in 60 cludes four arcuate (quadrantal) outer shroud strips 32 each carrying an arcuate row of stator vanes 34 and an arcuate inner shroud strip 36 An assembled stator vane assembly therefore comprises inner and 65 outer shroud rings joined by an annular row of radial vanes An intermediate one of the stator vane assemblies is provided with a circumferentially extending annular row of radial air-bleed apertures 38 that extend 70 through each of the outer shroud strips 32 between the vanes 34 The inner surface of the outer casing is recessed to receive the edges of each of the intermediate shroud strips 32 through peripheral tongue and 75 groove connections 40 and 42 and also to define, with the outer surfaces of the intermediate shroud strips, a peripheral chamber 44 that communicates with the compressor interior through the shroud strip apertures 80 38 A circumferentially extending row of radial air-bleed apertures 46 extends through the arcuate outer casing sections 22 to place the chamber 44 in communication with the exterior

of the casing 85 A small amount of radial clearance is provided in the chamber 44 between the casing sections 22 and the intermediate shroud strips 32 to support for circumferential sliding movement, four arcuate slide go 1 Price $,) l#At No 33245/55. v-alves 48, each made of thin flexible metal strip Each slide valve 48 has an arcuate row of radial valve Dorts 50 which are regisrable with the apertures 46 to bleed off rressurized air from the intermediate comnression stage of the compressor when required. Each of the slide valves 48 is provided with an actuating means for shifting it circumferentially in the casing to open and close the valve passages 46 Each actuating means includes a rack 52 slidably mounted an a housing 54 secured on the respective casing section 22 and a worm 56 rotatably mounted in the housing in engagement with the rack Radial pin portions 58 project from the racks 52 and engage the respective slide valves 48 to shift the same circumferentially on rotation of the worms 56 Flexible drive cables 60 extend around the compressor casing and interconnect the worms 56 for simultaneous operation and any one of the flexible cables may be driven to accomplish simultaneous actuation of the four valve members As shown in the drawings. the worms 56 are each rotatable about an axis approximately tangential to the circumference of the outer casing 22. The valving arrangement described above gives high quantity air bleed-off when open due to the large number of valve ports, and reduces air leakage when closed as the valve strips are then tightly seated against the cylindrical internal surface of the compressor casing by the air pressure within the compressor The slide valves, the stator vane assemblies and the casing are parted radially into similar arcuate sections to simplify their assembly with the compressor rotor.


* GB785956 (A)

Description: GB785956 (A) ? 1957-11-06

Improvements relating to suitcases, brief cases and other hand luggage


PATENT SPECIFICATION 785,956 Date of Application and filing Complete Specification: Nov 22, 1955. No 33338/55. Complete Specification Published: Nov 6, 1957. Index at Acceptance:-Classes 19, E(L: 23: X); and 133, H 5 F 2. International Classification:-A 45 c. COMPLETE SPECIFICAT 1 ON Improvements relating to Suitcases, Brief Cases and other Hand Luggage. 1, ARTHUR BATES, Chevet House, Newnifilerdam, Wakefield, Yorkshire, British, do hereby declare the invention, for which 1 pray that a patent may be granted to me, and the method by which it is to be performed, to be particularly described in and by the following statement: - This invention relates to suitcases, brief cases and other hand luggage and provides a supporting strap of woven fibre or leather or other durable and pliable material generally of a width of approximately threequarters of an inch, but alternatively of such other width as is convenient and appropriate to the weight to be carried, which is disposed between two opposing sliding buckles, provided with links or loops and attached to the hand luggage. The strap is fitted in a manner described below so that the movement of the buckles along the strap causes the effective length of strap to be variable at will between maximum extension, when the strap can be used to support the luggage from the shoulder, to maximum retraction, when the strap lies taut along the upper surface of the luggage with that portion of the strap between the sliding buckles lying in three or more overlying and contiguous folds. The ends of the strap are secured to links which are rivetted or otherwise attached close to the outer angles of the upper surface of the luggage and its length is so adjusted that -when the strap is fully retracted the buckles are approximately half an inch from the securing links. The buckles are, generally, of a normal commercial type such as is used for the se4 curing of the side adjustment straps of the waistbands of trousers which are self-locking when tension is applied to the strap, but are here used in opposing pairs and additional inner

links are fitted as necessary. 4, The sliding buckles shown are one type only of the many types in commercial use which can be used in conjunction with this arrangement of buckles and strap. When it is necessary to use the strap for the purpose of supporting luggage from the shoulder both of the sliding buckles are 50 moved along the strap by hand towards the centre of the case This lessens the length of strap contained in multiple layers between the two sliding buckles and increases the length contained in a single layer be-55 tween the securing end links of the strap and the two sliding buckles, and the effective overall length of the strap is thereby increased so that the strap may be slung over the shoulder and the weight of the lug 60 gage supported thereon. In Figs 1 and 2 on the accompanying drawings a typical arrangement is shown in which only one inner link, at ' d ' on each of the sliding buckles is employed and three 65 layers of strap connect the two buckles Any convenient odd number of layers can however be used by adding further inner links at ' d ' to each buckle. In Fig 4 on the accompanying drawings a 70 sketch plan of the reverse side of the buckles is shown with two inner links 'd' to each buckle and five layers of strap between. The strap is there shown diagrammatically by a narrow band in order to indicate more clearly the arrangement of the strap and buckles. In Fig 2 on the accompanying drawings the strap is threaded in the following man 80 ner: If the left and right side sliding buckles are lettered respectively 'X' and Y' then the strap is passed under the bar a' of buckle 'X,' over the sliding grip b,' under the bar 'c,' and, passing under 85 the link or link 'd,' passes along the ton surface of the case and under and through the link 'd' of buckle 'Y' and is then brought back along the top surface of the luggage and lies along and over the first 90 layer to the buckle 'X' and passed under (Price 316) 785,956 and through the link 'd,' and returned again to the buckle 'Y' where it passes over the moveable link 'd,' under the inner bar 'c,' over the moveable grip 'b' and under the outer bar 'a ' The two ends of the strap are then secured to the links attached near the outer angles of the upper surface of the luggage with the sliding buckles as near to these links as is possible and convenient. Fig 3 on the accompanying drawings shows typical arrangements of the strap fitted to a suitcase and to a brief case.

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* GB785957 (A)

Description: GB785957 (A) ? 1957-11-06

Improvements in or relating to electric circuit interrupters


A high quality text as facsimile in your desired language may be available amongst the following family members:

DE1047904 (B) FR1144655 (A) US2795675 (A) DE1047904 (B) FR1144655 (A) US2795675 (A) less Translate this text into Tooltip

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The EPO does not accept any responsibility for the accuracy of data and information originating from other authorities than the EPO; in particular, the EPO does not guarantee that they are complete, up-to-date or fit for specific purposes.

PATENT SPECIFICATION 785,957 Date of Application and Filing Complete Specification: Nov 25, 1955. Application made in United States of America on Dec. Complete Specification Published: Nov 6, i 1957. No 33796/55. 8, 1954. Index at Acceptance:-Class 38 (S), B 4 (A: C: G). International Classification:-HO 2 c COMPLETE SPECIFICATION Improvements in or relating to Electric Circuit Interrupters. Wve, W/ESTINGHOUSE ELECTRIC INTERNATIONAL COMPANY, of 40 Wall Street, New York 5, State of New York, United States of America, a Corporation organised and existing under the laws of the State of Delawvare in

said United States of America, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:- This invention relates generally to circuit interrupters and, more particularly, to arcextinguishing structures therefor. The chief object of the present invention is to provide an improved circuit interrupter in which improved and more efiective arcextinguishing action takes place. With the above object in view, the invention consists primarily in an electric circuit interrupter comprising means for establishing an arc, a magnet structure including an elongated or oblongs shaped core and pole plate portions for assisting in the extinction of the arc, magnetic blowout coil means encircling the core to establish a magnetic Held therein, a transfer arc horn spaced away from a long side of the core, one terminal of said blowout coil means being Unconnected to said transfer arc horn, and a relatively long transfer arc-extinguishing structure disposed between said transfer arc horn and a long side of the core to effect extinction of a portion of said arc. According to another aspect of the present invention there is provided an electric circuit interrupter comprising means for establishing an arc, a magnet structure including an elongated or oblong shaped core and pole plate portions for assisting in the extinction of the arc, a plurality of serially related magnetic blowout coils encircling the core to establish a maanetic field therein, a pair of transfer arc horns, one of said 4 transfer arc horns being spaced away from one of the long sides of said core and con nected to one of said blowout coils and the other of said transfer arc horns being space-; away from the opposite long side of satc I core and connected to another of said blow 50 out coils, and a relatively long transfer areextinguishing structure disposed between a long side of the core and each transfer a 2. horn to effect extinction of a portion of said arc 55 In order that the invention may be more clearly understood and readily carried inlo effect, reference will now be made to the accompanying drawings, in which: Fig 1 is a side elevational view, partially 6 C 7 in vertical section, of a circuit interrupter embodying the principles of the present irvention, the contact structure being shown in the closed-circuit position. Fig 2 is a plan sectional view of the cir 65 cuit interrupter of Fig 1, taken along the line II-II thereof; Fig 3 is a vertical sectional view taken along the line III-III of Fig 1; Fig 4 is a side

elevational view of one 70 of the plates utilised in the arc-extinguishing sections; Fig 5 is a side elevational view of or of the transfer arc-extinguishing plates; Fig 6 is a sectional view taken substan-7 r tially along the line VI-VI of Fig 7; and Fig 7 is an enlarged fragmentary sectional view taken substantially along thse line VII-VII of Fig 3. Referring to the drawings, and more par 8 ticularly to Fig 1 thereof, the reference numeral 1 generally designates a circuit irterrupter of the air-break type. Generally, the circuit interrupter 1 includes contact structure 2 operable to establish an 85 arc, which is moved upwardly into an arcchute structure 3, including a pair of arcextinguishing sections 4 and 5 of substantially identical construction. One terminal L 1 of the circuit interrupter 50 (Price 316) 785,957 is connected to a stationary contact 6, and another terminal L 2 of the interrupter is electrically connected to the movable contact 7 If desired, suitable bridging and secondary contacts may be employed to relieve the stationary and movable arcing contacts 6, 7 from carrying the current in the fully closed circuit position shown in Fig 1. During the opening operation, the moving loarcing contact 7 moves away from the stationary arcing contact 6 to establish an arc 8, as shown by the dash line of Fig 1 This arc may be considered as being composed of three sections 8 a, 8 b and 8 c The arc 8, Of course, bows upwardly because of the natural convection current of air, which is heated by the arc, and also because of the magnetic forces set up by the arc which act to expand the loop of the arc, as well understood by those skilled in the art. Adjacent the top and central position of the arc 8 is a pair of transfer are horns 10. 11, between which is disposed a transfer arc-extinguishing means, generally designated by the reference numeral 13 The arc portion 8 a extends between the movable arcin contact 7 and the transfer arc horn The arc portion Sb extends within the transfer arc-extinguishing means 13 between the transfer arc horns 10, 11 The arc portion 8 c extends between the stationary arcng contact 6 and the transfer arc horn 1. The function of the transfer arc-extinguishing means 13 is to interrupt the arc portion 8 b and so bring into series circuit the pair of serially related, centrally disposed blowout coils 15, 16, the locations of which are more clearly shown in Fig 2 of the drawings Such coils, of course, have insulated windings As mentioned, the centrally disposed blowout coils 15, 16 are connected together in series, this being effected as by a connection 17 at the top of the coils (Figs 1 and 3), and the other lower ends 18, 19 of the blowout coils 16 15 respectively are secured to the transfer arc horns 10, 11

respectively, as shown more -clearly in Fig I of the drawings. Because of the reactance of the blowout coils 15, 16 it is difficult to force current to flow through them because of the countervoltage set up in the coils The transfer arc-extinguishing means 13 is therefore, desirable to assist in this transfer into series circuit of the blowout coils 15, 16 by extinguishing the arc portion 8 b Generally, the transfer arc-extinguishing means 13 includes a plurality of spaced insulating plates 21, the configuration of which is more t O clearly shown in Fig 5 of the drawings It will be noted that each insulating plate 21 has a slot 22 provided therein which tapers inwardly to one side of the center line 23 of the plate The plates 21 are spaced laterally apart by asbestos rope spacers 21 a as more clearly shown in Fig 2 of the drawings Adjacent plates 21 may be positioned oppositely so that the slots 22 are alternately on opposite sides of the center line of the plates and provide a zigzag path for the arc 70 Referring to Fig 1 it will be noted that a plurality of the plates 21 are disposed between the arc horns 10, 11 and a single-turn shading coil 25 The shading coil 25 in turn encircles the core or yoke portion 26 which 75 magnetically interconnects the Pole plate portions 27, more clearly shown in Fig 2 of the drawings. Referring more specifically to Fig 7 of the drawings, it will be noted that the arc 80 portion or section 8 b moves upwardly to strike the lower end 28 of the shading coil to establish two serially related arcs 29. which are electrically in series These arcs move upwardly within the slots 22 of 85 the insulating transfer plates 21 to become extinguished. Following extinction of the arc portion Sb within the transfer arc-extineuishing means 13, the blowout coils 15 and 16 are seriall 90 connected into the circuit, and the enercization of these coils 15 16 sets up a magnetic flux within the magnetic circuit 24 which includes the pair of side magnetic pole plates 27 and the interconnecting yoke 26 Pre 95 ferably, the pole plates 27 are formed of vertically extending sheets of a suitable magnetic material to form a laminated structure. more clearly shown in Fig 2 of the drawings Magnetically interconnecting ihe side 100 pole plates 27 is the central interconnecting core or yoke portion 26, about which encircles the two serially related blowout coils and 16. As will be obvious to those skilled in the 105 art, the H-type of magnetic circuit 24 shown, upon the energization thereof, causes magnetic flux to flow between the pole plates 27 in the manner indicated by the arrows 20 in Fig 2 This magnetic flux extending 110 transversely between the pole plates 27 causes upward movement of the

arc portions 8 a, 8 c into the arc-extinguishing sections 4. of the arc-chute structure 3. The left hand end of the arc portion 8 a 115 as viewed in Fig 1, quickly transfers to the outer arc horn 12, the lower end of which is connected, as shown, to the movable arcing contact 7 and hence to the lower terminal L 2 of the device Also the right hand 120 end of the arc portion 8 c quickly transfers to the right hand arc horn 9 of the device. which is electrically connected to the stationary contact 6 by the connection 9 a and hence to the upper terminal LI of the inter 125 rupter. The current path through the interrupter (as viewed in Fig 1) may then be traced, beginning at line LI, through connection 9 a. arc horn and terminal plate 9, across the 130 785,957 fre in right hlald miain extinguigliilg wition i to the transfer arc horn or plate 11, lower al end 19 of front blowout coil 15, through St coil 15 to the connection 17 at its upper t( end of the rear blowout coil 16, through P coil 16 to its lower end 18 connected to the a arc transfer plate or horn 10, through the e arc in main left hand extinguishing section t 4 to the arc terminal plate or horn 12 and s thence to line L 2. Disposed within each of the arc-extin a guishing sections 4, 5 is a plurality of spaced, a slotted, ceramic plates 40, the configuration v of which is more clearly shown in Fig 4 of the drawings As shown, each ceramic d Mate 40 has a slot 41 provided therein, the upper closed end 42 of which is slightly offcenter The plates 40 are staggered during assembly so as to form a horizontally disposed, zigzag arc passage 43 throughout the length of the arc-chute sections 4, 5 which quickly brings about extinction of the arc portions 8 a, 8 c The plates 40 are spaced laterally apart, as shown more clearly in Fig 2, by sections of asbestos rope 44 cemented between the plates 40 adjacent the outer edges thereof, the method being identical to that previously referred to in spacing apart the insulating plates 21 of the transfer arc-extinguishing means 13. Proper operation of the transfer arc extinguishing means 13 is necessary to ensure rapid blowout-coil transfer, and it is an important aspect of the invention to provide a more effective transfer arc-extinguishing means 13, while at the same time providing a more compact and effective structure It was found that with relatively short transfer arc-extinguishing plates below the yoke the -40 transfer arc portion 8 b extending between the transfer arc horns 10, 11 sometimes flashed over across the top of such short transfer arc-extinguishing plates and prevented the blowout coils 15, 16 being inserted into series circuit.

It has been found that by making the yoke portion 26 somewhat longer and narrower than previous constructions of this type, yet having the same cross-sectional area, there was adequate space on both sides of the shading coil 25 for the relatively long transfer arc-extinguishing plates 21. This is all obtained without increasing the overall size of the arc chute 3 As shown in Fig 7, with this arrangement the transfer stack is made of substantially full length plates 21 and divided into two sections 31, 32 and placed in the spaces between the transfer horns 10, 11 and the shading coil 6025 The transfer arc 8 b divides into two sections 29, 30 with the shading coil 25 forming a common terminal between them. This change accomplishes a number of desirable results Whereas formerly an arc t 5 to the shading coil shorted out the transfer "stk and resulted in uncatiffictory perfoiilrce, in the present arrangement the arc is -.ill confined to the stack Also, the ability ) use longer plates 21 in the transfer stack ermits the use of a more efficient slot shape 70 rd the length of the plates 21 beyond the nds of the slots 22 eliminates the tendency tward flashing over the top of the transfer tack. Aside from improving transfer perform 75 Lnce, this new construction results in two additional distinct improvements First, it vill be seen that the transfer arc-extinguishng means 13 is not disposed so close to the contact structure 2 which results in ade 80 luate space being available for a desired nitial looping effect of the arc Thus, the arc 8 is able to get away faster from the contact structure 2 resulting in less ionization in the region of the contact structure 85 2, which reduces the tendency to restrike. Secondly, by disposing the transfer plates 21 above the fire plates 33, the latter need not be grooved to support plates below the shading coil 25, which was used in con 9 G structions heretofore The strength of the fire plates 33 is, consequently considerably improved, resulting in a stronger structure. To support the coils 15, 16 rigidly within the apertures 34 disposed in the insulating 95 arc chute jacket 35, coil washers or plates 36 of insulating material are employed surrounding the yoke 26 and maintained separated by the shading coil 25, as more clearly shown in Fig 2 100 Also, an insulating spacer plate 38 is preferably utilized between the pole plate portions 27 and the blowout coils 13 14 for insulation purposes. It will be noted that there is an open 105 space indicated at "A" in Fig 7 This space may be left open, as shown, so that the initial arc portion 8 b may move rapidly upwardly within this space "A" to contact the lower end 28 of the shading coil 25 resulting 110 in the two arc

portions 29, 30, the extinction of which occurs in the manner heretofore described However, for certain applications, it may be desirable to interpose within the space "A" additional insulating 115 plates of shorter length to assist in the extinction of the arc 8 b, particularly during low current values and the present invention is intended to cover such a modification. For higher current values, the central por 120 tion of the arc 8 b would move through such shorter plates, contacting the shading coil and being extinguished in the manner as set forth above. The foregoing construction has been ex 125 perimentally tested in the laboratory, and has been found to give greatly improved results over prior constructions in which relatively short transfer arc-extinguishing plates were utilized Thus, the use of long 130 785,957 transfer plates 21 having mnore suitable slot configuration greatly speeds up interruption of the transfer arc 8 b, thereby rapidly inserting the series blowout coils 15 16 into the circuit to quickly set up the desired magnetic field within the arc chute sections 4, of the interrupter 1.


* GB785958 (A)

Description: GB785958 (A) ? 1957-11-06

Improvements relating to motor vehicles


A high quality text as facsimile in your desired language may be available amongst the following family members:

CH326829 (A) FR1114793 (A) CH336270 (A) CH326829 (A) FR1114793 (A) CH336270 (A) less

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PATENT SPECIFICATION 785958 Date of Application and filing Complete Specification: Nov 28, 1955. No 34044155. Application made in Germany on Dec 6, 1954. (Patent of Addition to No 746,169, dated Dec 6, 1954). Complete Specification Published: Nov 6, 1957. Index at acceptance:-Class 79 ( 5), H( 12: 24). International Classification:-B 62 d. COMPLETE SPECIFICATION Improvements relating to Motor Vehicles We, DAIMLER-BENZ AKTIENGESELLSHAFT, of Stuttgart-Untertiirkheim, Germany, a Company organised under the laws of Germany, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: - This invention concerns motor vehicles, particularly large vehicles such as omnibuses, coaches and the like It relates to improvements upon or modifications of the invention claimed in our Patent No 746,169. According to claim 1 of that Patent, on the one hand, a rigid front axle sprung by helical springs or similar non-guiding springs is abutted against the frame by a triangular stay system so as to be capable of pivoting in all directions and by a separate transverse abutment device, for example a transverse link, for the purpose of taking up transverse forces and, on the other hand, a rigid rear axle is guided and sprung in relation to the frame by longitudinally extending leaf springs. As described and illustrated in the Specification of the above Patent, the steering gear is disposed outside the vertical transverse plane containing the axis of swinging of the stay system For the purpose of obtaining correct steering geometry, the steering gear is arranged to actuate through a link an intermediate lever which is mounted approximately in the said transverse plane so as to rock about an axis

extending transversely of the direction of travel and is in turn connected to a steering arm at the front axle by a link performing substantially the same swinging movement as the stay system Such mechanism is, however, not suitable for all vehicle constructions, because the lever occupies relatively considerable space in the vertical direction The present invention seeks to obviate this disadvantage. According to the invention, in a motor vehicle as claimed in claim 1 of Patent No. 746,169 and comprising steering gear disposed outside the vertical plane containing the transverse horizontal axis of swinging of the stay system by which the front axle is abutted lPice 3 s 6 d l against the frame, the said axis is located between the steering gear and the front axle and steering linkage connecting the said gear to the wheels on the said axle includes an intermediate lever which is located approximately in the said plane, is mounted so as to be rockable about an approximately vertical axis on the sprung part of the vehicle and is connected by a link directly to the steering arm of one of the said wheels in such a manner that the said link does not cross the axle The linkage can then be made relatively flat, so that it can be satisfactorily accommodated even when there is little space available vertically. The steering geometry is substantially unimpaired by the vertical disposition of the lever axis. One embodiment of the invention by way of example is shown diagrammatically and in perspective in the accompanying drawing. The front wheels 10 of a motor vehicle are supported by an axle 11 by means of steering pivots 12 The axle 11 is resiliently abutted by coil springs 13, against a transverse member 14 and is connected to the said member by a transverse link or stay 15 At points 16, the member 14 is connected possibly with the inter-position of rubber cushions (not shown) to the main frame of the vehicle, which may be combined with the body, in such a manner that the member 14 together with the axle 11, the wheels 10 and the springing 13 ' can be removed as a unit from the frame. The axle 11 is abutted against the frame so as to be capable of pivoting in all directions For this purpose, the triangular stay system 17 is connected to a bracket 1 '8 on the frame by a joint, incorporating rubber cushions or the like, which permits movement in all directions On vertical deflection of the wheels, the axle 11 swings about the horizontal transverse axis x-x. The steering wheel 19 transmits steering movement through steering gear 20 to a drop arm 21 ' connected by a link 22 to one arm of an intermediate lever 23 which is supported from the frame so as to be

rockable about a vertical axis 24. The axis 24; is disposed in the vertical transverse plane of the vehicle which contains the transverse axis x-x of swinging for the stay system 17 The other arm of the lever 23 is connected by a further link 25 to a steering arm 26 connected to the steering pivot 12. A track rod 27 connects together the steering arms of the two opposite wheels. When the axle 11 deflects about the axis x-x, the rod 25 performs a swinging movement which corresponds substantially to that of the stay system 17, so that the steering is not unduly and undesirably affected by sprung movements of the wheels. The rear axle (not shown) of the vehicle will be guided and sprung in the manner described and illustrated in Patent No 746,169. In the above described arrangement, it will be seen that the steering gear 20 is disposed outside of the vertical plane containing the axis x-x, which is located between the said gear and the front axle 11 The intermediate lever 23 is located approximately in the said plane and is mounted on the sprung part of the vehicle so as to be rockable about an approximately vertical axis The lever 23 is directly connected by a link 25 to the steering arm 26 The link 25, does not cross the axle 11.


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