baber/WOPTO huggingface dataset:
Patent GB-401729-A (GB)
Title: Improvements in or relating to alternating current signalling systems
IPC: H04Q1/453
Filed: 1932-05-19
Abstract: 401,729. Substation circuits. STANDARD TELEPHONES & CABLES, Ltd., and SKILLMAN, T. S., Connaught House, Aldwych, London. May 19, 1932, No. 14246. [Class 40 (iv).] In electric signalling systems wherein guard arrangements are incorporated in the receiving equipment to prevent operation of the receiver by currents other than the correct signal, the guard equipment is rendered effective for operation after the receiving equipment has responded to an incoming signal. As shown, a four-frequency signalling system comprises frequency-responsive relays A-D, associated with normally energized relays N, M each having four windings, the normally de-energized windings acting as guard windings. The relays N, M, which are released respectively by frequencies B + D, A + C, are arranged to be operated in turn by incoming signals. When the circuit is seized, relay SZ is operated to prepare a guard circuit for M over sz2, sz3. When N releases on receipt of the first signal, SZ releases and opens the guard circuits. When M releases, SW is operated to prepare alternative guard circuits for M and at contacts sw4, sw5 disconnects the local end of the line from the signalling equipment to prevent reoperation of M by speech. If the signal is correct, M remains released, and slow relay SX releases to energize SY and pass on the signal. If, however, M is operated by a false signal, the guard circuits of M are rendered operative by relays B or D and operation of relays SX, SY is prevented. The system ensures that reception of pure signals is not prevented by interference from the local end of the line. The Provisional Specification describes a system wherein the relay M and its associated circuits only are employed.
Patent GB-749347-A (GB)
Title: Process for making closure caps and product resulting therefrom
Inventor: EVANS RAYMOND JOHN
IPC: B29C70/80
Filed: 1954-05-17
Abstract: 749,347. Moulding bottle cap seals. CONTINENTAL CAN CO.. Inc. May 17. 1954, No. 14320/54. Class 87(2) [Also in Group XVII] In the moulding in situ of a sealing disc for a crown closure, a sheet of rubber composition 10 having an isobutylene polymer as plasticizer is punched by a punch 11 to deliver a disc 12 into a sleeve 13 by which it is transported to a heated cap 16 presented by a holder 17 to receive the disc 12 ejected by a cold plunger 18 the heat causing adhesion of the disc to the cap which then moves to a hot plate 20 where a heated plunger 21 shapes the sealing disc. The final step of curing or vulcanization takes place in an air heated oven 30.
Patent GB-1045091-A (GB)
Title: Alkyl diazabicyclo-octane catalysts
Inventor: FARKAS ADALBERT
IPC: B01J31/02
Filed: 1963-04-10
Abstract: The invention comprises 1,4-diazabicyclo-(2,2,2)octane derivatives of Formula <FORM:1045091/C2/1> in which R and R1 are hydrogen atoms or methyl groups, at least one of them being methyl.  They may be prepared by reacting at least one mol. of ethylene oxide or propylene oxide with one mol. of 1,2-diamino propane, piperazine, 2-methyl piperazine or 2,5-dimethyl piperazine, passing the products in vapour phase over a solid cracking catalyst at 325-325 DEG  C., and recovering a liquid product containing the derivative, provided that when piperazine is used as one starting material propylene oxide must also be used as the other.  Suitable catalysts are, for example, silica-alumina and acid-activated clay, such as kaolin. Alternatively the 2-methyl derivative may be obtained by passing a mixture of 1,2-diaminopropane and an ethylene polyamine over a solid cracking catalyst at 325-425 DEG  C.ALSO:Compounds of Formulae II and III <FORM:1045091/C3/1> <FORM:1045091/C3/2> are used as catalysts in the formation of polyurethanes from organic polyisocyanates and organic compounds having an active hydroxyl group.  The compounds may be used alone or as mixtures with each other and/or the unsubstituted triethylene diamine.
Patent GB-1125963-A (GB)
Title: Synchronous self-shifting clutches
Inventor: CLEMENTS HERBERT ARTHUR
IPC: F16D23/10
Filed: 1965-04-05
Abstract: 1,125,963. Ratchet clutches. S.S.S. PATENTS Ltd. 25 Feb., 1966 [5 April, 1965], No. 14391/65. Addition to 974,937. Heading F2C. In a synchro self-shifting ratchet engaged clutch wherein an intermediate sleeve 12 helically splined to an output flange 6 is moved axially by pawls 16 thereon reacting with ratchet teeth 5 on an input 1 to engage input teeth 4 with teeth 13 on the sleeve 12 to effect torque transmission, both engaging and disengaging movement of the sleeve 12 is damped by an oil dashpot piston 22-18 fast on sleeve 12 and engaging a cylinder 25 on the output flange 6. Engaging sleeve movement rightwards is initially free due to a groove 35 in part 18 allowing oil out of the cylinder supply line 32 but is later restricted by groove 35 being masked by the cylinder and flange 22 engaging a narrow bore 36 of the cylinder so that oil is forced through bores 23 in the flange 22 to the opposite side. Return disengaging movement is initially free with a groove 34 open to oil supply line 30-32 which is then masked by the end of the cylinder, and bores 23 in flange 22 inhibit flow until groove 35 is again opened.
Patent GB-1376957-A (GB)
Title: Electrostatographic duplicator
IPC: B65H29/04
Filed: 1972-03-28
Abstract: 1376957 Fixing RANK XEROX Ltd 28 March 1972 [30 March 1971] 14502/72 Heading G2H In an electrostatographic duplicator wherein a copy sheet is carried on endless gripper chains 3 to a heated roller type fixing station 9 an intermediate fixing station 7 is provided to partially fix the image. The copy sheet is fed from a pile by a separator roller 2 and carried by grippers 4 on the chains 3 past an electro-photographic drum 6 which bears a powder image. The station 7 may comprise radiant heaters.
Patent GB-663863-A (GB)
Title: Improvements in duplicating machines
Inventor: FORD RONALD MAX
IPC: B41L7/08
Filed: 1948-05-31
Abstract: 663,863. Copying documents. FORD, Ltd., F. R., and FORD, R. M. May 31, 1949 [May 31, 1948], No. 14597/48. Class 100 (ii). In a rotary duplicator of the kind in which sheets are printed from a master sheet bearing a mirror script impression, a moistening device is used comprising a roller 50 which is supplied from a velvet pad 16 carried by a pivoted hollow member 13, the pad having a horizontal part which rests on a wick 40 supplied with moisture by a pump'2, Fig. 4, which circulates liquid from a tank 44 via a valve 45, to a tube 41 formed with a slot 42 in which the wick 40 is arranged. The pad 16 is formed with an inclined part which rests normally upon the roller 50. The member 13 is moved to and from moistening position by means of an adjustable cam 24, 25, Fig. 1, which is adapted to oscillate a shaft 17 at each revolution of the printing drum, by means of lever mechanism 33, 34, 35, 36, 37, so that the pad 16 is held out of action at each revolution of the drum for a period depending on the relative angular adjustment of the two cam members 24, 25. The pad 16 is detachably coupled at one end to the shaft 17, and at the other end is mounted so as to rotate upon a spring-pressed conical bearing which can be withdrawn to permit removal of the pad. To adapt the pad to sheets of different widths a blanking-out sheet, 5, Fig. 7 (not shown), may be used. The roller 50 is fitted with a scraper pad 53, and a splash guard 54 is provided.
Patent GB-731939-A (GB)
Title: Strip feeding device
Inventor: SPEGELSTEIN NATHAN
IPC: B21D43/11
Filed: 1952-06-10
Abstract: 731,939. Metal strip feeds. SUPER METAL STAMPINGS, Ltd. June 4, 1953 [June 10, 1952], No. 14608/52. Class 83 (4). [Also in Group XVI] A strip feeding device includes means for gripping the strip material to be fed into a machine, said means being carried by a block reciprocable in guides by a double - acting pneumatic cylinder, the operation of which is controlled by valves operated synchronously with the operation of the machine. Strip gripping means, reciprocated by pneumatic piston and cylinder means 9, 10, comprises a block 7 in which is slidable a pad 15, moved down by a pneumatically operated diaphragm 19 to clamp the strip, passed through a slit 13 in the block 7, against the block on the forward stroke of the gripping means. Admission of air under pressure to the ends of the cylinder 10 and to the diaphragm 19 is controlled by valves actuated by ]ever means operated by rotary cams in the machine to which the strip is fed. A spring-pressed pawl 23, or pneumatic gripper means similar to that in the block 7 and controlled by the air control valves, prevents movement of the strip during the return stroke of the block 7. An adjustable stop 11 determines the length of the stroke of the gripping means.
Patent GB-235218-A (GB)
Title: Improvements in change speed gear for motor cars
IPC: F16H37/00
Filed: 1925-06-05
Abstract: 235,218. Matteucci, R. June 6, 1924, [Convention date]. Variable-speed gearing comprises a friction epicyclic train 12, 10, 11 in which the internal gear 12 is driven at different speeds by an auxiliary change-speed gear, a clutch 19, 20 being provided for direct driving. The cage 9 of the planet rollers 10 is solid with a driven shaft 6. The central gear 11 is held by an extension 38 of the gear casing 2. This gear 11 is split and is prized open by a lever 39 to produce engaging pressure, centering rollers 37 being also provided. The direct-driving clutch 19 is carried by a sleeve 17 feathered on a driving-shaft 5 which drives constantly a countershaft 7. The internal gear is constantly connected through clutch teeth 15 with a second sleeve 16 which is driven directly through clutch teeth 19, 21 and indirectly through gear pairs 24, 22 and 25, 23. Thus with the direct drive, the shaft 6 is driven at four speeds. Reversed driving is effected by an idler between the gears 24, 22. A different type of auxiliary gearing may be used. The friction train is, lubricated by a disc 31 on the shaft 7 which carries blades 32 which lift oil which finds its way through ports 33. A recess 36 is provided to catch broken parts from the clutch members 19, 20, 21 and prevents them entering the friction gearing.
Patent GB-1384482-A (GB)
Title: Selective actuating mechanism for percussive photoflash lamp array
IPC: G03B15/04
Filed: 1973-03-27
Abstract: 1384482 Photo-flash apparatus GTE SYLVANIA Inc 27 March 1973 [6 June 1972] 14742/73 Heading G2X A selective actuating mechanism for use with a photo-flash lamp array including a plurality of percussively-ignitable flash-lamps (10) and of prestressed strikers 28 mounted on a support 18, comprises at least one movable member, means for supporting the movable member in operative alignment with respect to the strikers, and means on the movable member for sequentially releasing said pre-stressed strikers to fire corresponding flash-lamps in response to successive indexing of the movable member. As shown, the mechanism is used in the multi-flash unit described and claimed in Specification 1384481 which has two rows of four flash-lamps and is insertable in a  camera flash-cube socket. The mechanism comprises two intermeshed gears 30, 32 rotatably mounted on shafts 36, 38 on which the flashlamps and strikers are mounted so that ramps 34 on the gears can release cocked arms 56 of the pre-stressed strikers thereby igniting the flash-lamps. Indexing is effected by a camera member 64 which is raised when the shutter is actuated to rotate the gears via a pin 60, thus causing flash ignition; operation of the film advance mechanism retracts member 64 and ratchet spring 68 aligns the next pin 60 against this retracted member. If member 64 senses that there is no prestressed striker arm 56 in the operative position it activates an indicator which signals the presence of a used lamp. Rotation of the gears may be aided by a spring (90). Member 64 may be replaced by a similar member (77) Fig. 8 (not shown), having stepped cam surfaces (80, 82), which co-operate with a spring-loaded latch (84) which depending on its position may limit the upward movement of member (77) and thus determine whether 0, 1 or 2 flash-lamps are fired when the shutter is actuated.
Patent GB-615998-A (GB)
Title: Improvements in or relating to motion picture projectors
IPC: G03B1/42
Filed: 1946-05-15
Abstract: 615,998. Kinematograph projectors. KODAK, Ltd. May 15, 1946, No. 14755. Convention date, May 15, 1945. [Class 97 (i)] A projector has upper and lower loop formers which are moved to a threading position by movement of a single lever connected to both formers and are retained in position by a latch device acting on the lever until the emergent leading edge of the film actuates a trip member to release the latch to allow the lever and loop formers to return to inoperative positions in which part of the lever engages the latch device to hold the trip member inoperative. In the figure, the loop formers 27, 28, shown in loop forming positions, are operated by a lever 35 pivoted at 36 and having pin and slot connection with the arms 29, 30 carrying the loop formers and pivoted coaxially with the sprockets 16, 17. Spring- urged members 25, 26 retain the film on the sprockets. Also pivoted coaxially with the sprocket 16 is a member 40 which blocks the film channel until lifted by engagement of its end 42 by the pin 33 on the lever 35 as the latter is moved to loop forming position. When the lever is subsequently moved back the member 40 trails on the film and drops back to close the channel again when the end of the film has passed. The lever 35 is held in loop forming position by a pivoted lever 68, spring urged so that its end retains the end portion 71. Movement of the lever 68 to this position brings a portion 73 into the path of the film at the sprocket 17. This portion is lifted by the leading edge of the film to release the lever 35 to the inoperative position in which it holds the lever 68 so that the portion 73 is out of the film path. In the position shown a member 61 is moved down to cover the projection aperture 13 so that its inturned lip 62 overlies the bottom edge of the aperture and guides the leading edge of the film past it. Also in this position a chamfered end 47 of the part 46 of the lever 35 retracts an edge guide from the film at the gate. Alternatively, it may move the rear gate member rearwardly.
Patent GB-542065-A (GB)
Title: Improvements in, and connected with, clamping devices
IPC: H01R4/36
Filed: 1940-10-01
Abstract: 542,065. Screw clamps. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., and HARRISON, B. G. Oct. 1, 1940, No. 14777. [Class 44] [Also in Group XXXVI] A screw b with a cable-clampirig plate c guided in a frame a co-operates with a nut i.pressed down by a spring j on to a seating h. When the screw applies pressure to a cable, the nut is lifted from the seating compressing the spring which maintains pressure on the cable even if the latter becomes deformed. The cable lies on a roughened lug d which is bent up out of the plane of the base plate e.
Patent GB-842915-A (GB)
Title: Footwear with elastic soles
IPC: A43B9/04
Filed: 1957-05-10
Abstract: 842,915. Boots &c. MAERTENS, K., FUNCK, H., and GOTZ, H. May 10, 1957, No. 14893/57. Class 17(2) Footwear having an elastic sole connected to the upper or welt by cementing or welding over an area along the edge of the sole is provided with an open groove or slot in the sole or welt spaced from the connection area but extending parallel thereto. An upper 2 is connected by stitching 4 to an insole I and a welt 3 to which an elastic sole 6 is cemented or welded over a surface area 5. This connection may be reinforced by stitching 15 and cushion filling 14 may be placed between the insole and outsole. Grooves 12, 7<SP>1</SP>, which remain open, are provided in the thicker edge portion 11 of the sole to relieve the tensile stresses on the connection area 5. In alternative forms illustrated a groove or slot may be provided only in the inner or outer edges of a thickened part of the welt or the thickened sole edge and may be wide with a rounded bottom. The grooves or slots extend over between a two thirds and a half of the area 5. Specification 842,914 is referred to.
Patent GB-201322-A (GB)
Title: An automatic brake for railway trucks and the like
IPC: B61H11/02
Filed: 1922-05-27
Abstract: 201,322. Anthony, W. H. May 27, 1922. Actuated by relaxation of pull or push.-In brakes for railway trucks &c. of the kind which are automatically applied when there is neither a pull on the draw-bar 1 nor pressure upon the buffers 17, the draw-bar 1 is connected by a rod 3 to a lever 5 on the brake shaft 6. When the pull on the draw-bar 1 ceases, a blede spring 2 forces the rod 3 and lever 5 to the left, thus applying the brakes 9. The draw-bar 1<a> operates similarly through a double lever 12 and rod 13. The buffers 17, 17<a> act upon a lever 14 similar to the lever 5. The brakes can be released by a handlever at the side of the truck &c. Reference has been directed by the Comptroller to Specifications 4972/82, 9239/89, 9833/95, and 12838/05.
Patent GB-181599-A (GB)
Title: An improved hasp fastening for bags, trunks, and like travelling requisites
IPC: E05B65/48
Filed: 1921-05-31
Abstract: 181,599. Mathison, G. May 31, 1921. Hasp fastenings; staple and slotted-plate fastenings.-A slotted spring-controlled hasp A hinged to one part of the bag, trunk, &c. is secured over a staple E secured to a base-plate G on the other part of the receptacle by a strap J secured to the plate B and passed through the staple E after the hasp is closed down, a raised part K of the base-plate G facilitating the passage of the strap through the staple.
Patent GB-326098-A (GB)
Title: Circular braiding machine
IPC: D04C3/00
Filed: 1929-05-14
Abstract: 326,098. Preuss, A. May 14, 1929. Braiding-machines.-Two sets of bobbins m, n mounted on carriers f are moved intermittently in opposite directions within a shed formed by warp. threads c drawn from stationary supplies o the threads being thus interlaced. The crossings are beaten up to a supporting ring l by a pointed sley bar h.
Patent GB-1145062-A (GB)
Title: A method of producing twisted concrete reinforcing rods
IPC: E04C5/03
Filed: 1966-04-05
Abstract: 1,145,062. Twisting. TOR-ISTEG STEEL CORP. S.A.H. 5 April, 1966 [12 April, 1965], No. 15201/66. Heading B3E. Reinforcing rods, for concrete, which are not rotationally symmetrical or which have local stress and/or hardness differences are twisted while under a tension below the yield point of the rods. Undulatory deformation of the rods is thus prevented. Rods having at least two oppositely situated groups of oblique ribs may be so twisted.
Patent GB-296750-A (GB)
Title: Improvements in coin-freed automatic vending machines
IPC: G07F11/24
Filed: 1927-06-07
Abstract: 296,750. Wistoft, S. June 7, 1927. Addition to 295,309. Delivery of articles stored in piles.-In a, vending machine of the kind described in the parent Specification, the delivery door comprises a chamber 9 formed by a front wall 4, back wall 6 and side walls so as to be open at the top and bottom. It is pivoted in an opening in the front 1 of the machine casing by side trunnions 8, the top 11 and bottom 12 of the opening being cylindrically shaped coaxial with the trunnions 8. The top and bottom of the door are correspondingly curved. When the door is closed, the chamber 9 is in alignment with the article magazine 3 and a packet 16 slides into the chamber, resting on the bottom 12 of the door opening. After prepayment, the door is swung outwardly by pulling a handle 14 at its bottom edge, and the article slides out and down an incline 1<1> to a tray 15. The other articles in the magazine are held up by the top edge of the door. The front 4 is a pane of glass held in framing 4<1> by slips.
Patent GB-1517232-A (GB)
Title: Sling device
IPC: A01K45/00
Filed: 1976-04-14
Abstract: 1517232 Sling; conueyers G PETRULACCISTEPHANOPOLI 14 April 1976 [17 April 1975] 15270/76 Headings B8H and B8A A sling for suspending articles, e.g. chickens, from a fixed point or a conveyer, comprises a C-shaped member 1, an arm 8 pivotally mounted about a pin 10 to the member 1 and a cord 6 connected between the free ends of the member 1 and the arm 8. A counterweight 9 is mounted on the arm 8 to bias same into a rest position whereat the cord is held taut. In operation part of the article, e.g. legs 11 of a chicken, are urged against the cord towards the interior of the C-shaped member thereby causing the arm 8 to pivot towards the free end of the member 1 and in so doing create a loop in the cord around the legs 11. Further movement of the arm 8 tightens the loop about the legs, which loop is then held tight by the weight of the chicken. In an alternative embodiment, Fig. 4 (not shown) the cord (6) is connected between two pivotally mounted arms (8) and (14) and in a further embodiment, Fig. 6 (not shown), the arm 8 is replaced by an arm (25) slidably mounted on the C-shaped member and biased by a spring (24) towards its rest position.
Patent GB-476308-A (GB)
Title: Improvements in mechanisms employing pistons
IPC: F02B75/18
Filed: 1936-06-03
Abstract: 476,308. Crank linkages. MEDERER, R. June 3, 1936, No. 15541. Convention date, June 4, 1935. [Class 80 (iii)] [Also in Group XXVII] In mechanisms employing pistons arranged radially about a common driven shaft, such as aero or other internalcombustion engines or steam engines, the piston rods are connected to one of a number of members interposed between the rods and the shaft, each point on each interposed member describing a circle the diameter of which is equal to the diameter of the circle described by the remaining points of the same member, and the sum of the diameters of the circles described by the various interposed members being equal to the piston stroke. In a star engine, piston rods n are connected to a floating ring i, the points of attachment being adapted to describe circles of equal diameter, and the member i is connected to a second member g attached to the frame f of the engine. A driven shaft a has a double bend providing two crank-pins c, e. The member g is mounted on the pin c and is constrained against rotation by cranks h; the member, g therefore moves about the axis of a but its vertical diameter is always vertical. Similarly, the member i moves about the axis of a and is supported from the member g by cranks o. The members g, i are in the form of similar triangles with centres at the crank-pins c, e, the corner points of g being connected by cranks to f and the corner points of i connected by cranks to g. The crank-pins of the cranks h are coaxial with the crank-shafts of the cranks o.