baber/WOPTO huggingface dataset:
Patent GB-1222602-A (GB)
Title: Two-piece master track link
IPC: B62D55/21
Filed: 1968-05-28
Abstract: 1,222,602. Endless-tracks. CATERPILLAR TRACTOR CO. 28 May, 1968 [9 June, 1967], No. 25508/68. Heading B7H. In a master connecting link for an endlesstrack comprising inner and outer faces 27, 28 and two separable parts 12, 13 one having a bore 22 for receiving a track pin bushing and the other a bore 23 for receiving a track pin, the two parts 12, 13 have mating surfaces disposed generally on a diagonal plane which intersects the inner and outer faces 27, 28 on imaginary lines disposed parallel to and adjacent the respective bores 22, 23, and a plurality of keys 38, 44 and slots 39, 46 formed across the mating surfaces parallel to the bores 22, 23 interlock to transmit tensile forces between the parts 12, 13. Those portions 41, 47 and 42, 48 of the mating surfaces which approach the inner and outer faces 27, 28 of the link are inclined away from the bores 22, 23 to increase the distance between the mating surfaces and the bores and avoid risk of fracture. Portions 43, 49 of the mating surfaces immediately adjacent the inner face 27 of the link are normal to that face. Cap screws 16, 17 which secure together the parts 12, 13 also attach a track shoe 18 to the outer face 28 of the link.
Patent GB-656495-A (GB)
Title: Steel alloys for heated tools, especially dies
IPC: C22C38/24
Filed: 1948-09-30
Abstract: Hot working tools, especially dies for hot pressing are made of an alloy of the following composition:-C 0.1-0.7 per cent; Cr 0.5-2.5 per cent; V 0.5-2.0 per cent; W 0.3-1.8 per cent; Mo 0.2-1.7 per cent; Fe, and impurities, the remainder, in which alloy the total of Mo and W does not exceed 2 per cent.
Patent GB-1347398-A (GB)
Title: Boilers or liquid heaters
IPC: F22B21/08
Filed: 1971-04-19
Abstract: 1347398 Boilers BABCOCK & WILCOX Ltd 19 April 1971 [28 March 1970] 25608/71 Heading F4A A boiler for producing steam or hot water comprises a furnace chamber 1 with a horizontal firing direction and a substantially rectangular vertical cross-section and with side walls 2, 3 including tubes in tube banks 7, 7a extending between upper and lower tube headers 9, 8 located at or near the ends of a diagonal of the cross-section and with a gas passage 6 disposed at a side of the chamber and arranged for traversal by furnace gases in the direction of the arrow 19, the gas passage extending adjacent to the furnace chamber. As shown, each side wall 2, 3 is substantially in two planes inclined at 45 degrees to the horizontal and the tubes in the gas passage are disposed at a similar angle. In operation as a steam boiler, header 9 forms a steam and water drum. Furnace gases from burner(s) 18 are fed through the chamber and into passage 16, which may be baffled and which contains the tube banks 7, 7a, and back along further gas passage 12, bounded by outer sheeting wall 14 attached by bellows section 15 to tube wall 11, containing further heat exchange surfaces 13, e.g. economizer tubes and/or air heaters, the gases finally exiting at outlet 20. A maintenance space 16 may be provided between the tube banks and the whole boiler rests on a base 10. In use as a hot water generator, a header similar to header 8 is placed at 9, and if superheated steam is required, suitable tubes are placed in passage 6. Exposed sides of the tube walls 2, 3, 4, 5, 11 and the headers may be covered in refractory material.
Patent GB-1278038-A (GB)
Title: Mechanism for feeding documents
IPC: B65H1/24
Filed: 1970-05-28
Abstract: 1278038 Feeding sheets NATIONAL CASH REGISTER CO 28 May 1970 [16 June 1969] 25622/70 Heading B8R In a mechanism for feeding documents 14 in a pile on edge along a feed table 12, said documents being disposed substantially perpendicularly to the table, the feed mechanism includes belt means, e.g. a plurality of endless belts 50 the upper runs of which emerge slightly from longitudinal slots (52), Fig. 3 (not shown), in the table, having a surface contacting and supporting the lower edges of the documents, and independently driven pusher means, e.g. a pushing member 62 on a pusher assembly 58 driven up a side rail 60 by a chain 75, spaced from the feed table to engage an upper portion of the rearmost document of the pile, the pusher means and belt means maintaining, under the control of sensing means, the documents substantially perpendicular to the table as they advance the documents to a pick-up station 15, e.g. a document transport and sorting device, at one end of the table. The sensing means may comprise upper and lower sensing fingers 90, 95 at the piok-up station 15 operating, via photo-electric sensors 111, 121, to control the drives of the pusher means and endless belt means, respectively, so that if the top of the foremost document is lagging behind the bottom, the pusher means is actuated to advance the tops of the documents further towards the pick-up station 15. Similar actuation of the endless belts 50 occurs if the bottoms are lagging, thus causing intermittent operation of both pusher and endless belt drives. The endless belts 50 stop short of the pick-up station 15, the feed of the document bottoms being thereafter continued by a spring-urged pusher 66 on the pusher assembly 58 which assembly can be pivoted about pivot (68) for ease of loading documents. The table may have longitudinal side guide-plates (16), (18).
Patent GB-187434-A (GB)
Title: Improvements relating to the mechanism for propelling cycles and the like
IPC: B62M1/00
Filed: 1921-09-29
Abstract: 187,434. Chick, P. Sept. 29, 1921. Gearing - up and gearing - down arrangements. - The crank-bracket chainwheel C is provided with an inner set of teeth D gearing with a pinion F on the axle of the cranks G. The teeth D may be formed on a separate ring carried by the arms b of the chainwheel C.
Patent GB-729406-A (GB)
Title: Interlocking mechanism for electromagnetic switches
IPC: H01H50/32
Filed: 1953-09-18
Abstract: 729,406. Electromagnetic switches; interlocking switches. ARROW ELECTRIC SWITCHES, Ltd. Sept. 18, 1953 [Sept. 30, 1952], No. 25799/53. Class 38 (5). Two switches, particularly two electromagnetic relays each having a pivoted lever, are interconnected so that one lever can only move to the attracted position when the other lever has moved fully to the unattracted position. As shown, levers 20, 40 are pivoted at 21, 41 and are connected at their outer ends to the plungers 10a, 12a of the relays. Between the inner ends of the levers is located a member 54 pivoted on a pin 38 and having a roller 56 which is engaged by the end of either lever when that lever, e.g. 20, is moved from the Fig. 2 to the Fig. 3 position, so that the roller is moved beneath the end of the other lever to prevent movement thereof. The adjacent ends of the levers are each curved on a radius concentric with the axis 21 or 41 of the lever so that the roller 56 is not released until the lever returns fully to the Fig. 2 position. In order merely to prevent movement of one lever whilst the other lever is in the attracted position, a bell-crank lever 60 may be arranged on a pin 39, rollers 66, 68 on the ends of the lever co-operating with notches 25, 45 in the levers 20, 40. Operation of one lever, e.g. 20, to the Fig. 5 position tilts the lever 60 to obstruct the other lever, and operation of lever 40 from this position assists the return of lever 20 to its Fig. 4 position. Lever 54 may remain in position or may be removed whilst lever 60 is in use.
Patent GB-425834-A (GB)
Title: Improvements in or relating to plate heat-exchange apparatus for fluids
IPC: F28D9/00
Filed: 1933-09-18
Abstract: 425,834. Plate heat - exchangers. LEBRE, A. F., 74, Boulevard Exelmans, Paris. Sept. 18, 1933, No. 25822. [Class 64 (iii)] Apparatus for transferring heat between fluids, e.g. a liquid and a gas, comprises a split casing divided into fluid ducts 5, 6 by partitions formed by a plate 7 between the folds of which are gripped the inner edges of heat - conducting gills 1, 1<1>. The outer edges of the gills may also be gripped between the folds of closure plates and, in this case, the casing may be dispensed with. In a modification, the edges of the gills may be turned either upon themselves or upon rods 9, Fig. 10. In another arrangement, the gills are formed with folds 10, Fig. 11, and pressed together, e.g. by the parts of the casing, to form the partitions. In a further modification, the gills are corrugated and spaced apart by bars 15, Fig. 13. The plates and gills may be of aluminium, copper, or iron.
Patent GB-902919-A (GB)
Title: Bowling ball return and handling mechanism
IPC: A63D5/02
Filed: 1960-07-25
Abstract: 902,919. Skittle alleys. AMERICAN MACHINE & FOUNDRY CO. July 25, 1960 [Aug. 5, 1959], No. 25860/60. Class 132 (2). In an arrangement of two adjacent skittle alley pits P1, P2 with a common ball-return means R between the opposed kick-backs 14, a door 10 for the passage of the ball from the pit to the means R is provided in each kickback, the doors being opened by the presence of a ball and being so connected by toggle means that the opening of one locks the other in closed position. The balls are carried in the pit by conveyer 64 and rest in a depression 62 opposite a door but are still rotated by the supporting conveyer. In this position the ball bears on a friction-surfaced bumper 46 pivoted to the door about a horizontal axis perpendicular to the plane of the door and swings the bumper about its axis 58 so that a latch 66 thereon is withdrawn from behind a pawl 68 mounted on kick-back brackets 72. The ball then swings the door open about its pivot 18 and this moves a link 28 of the opened door so as to urge lever 30 and the link 28 of the other door to dotted position (Fig. 2) past deadcentre to lock the other door closed. When the ball is through, spring 44 closes the door and breaks the toggle formed by lever 30 and links 28. If a pin should be in the door aperture at the same time as the ball, they jam and the ball is held clear of bumper 46 so that the latch 66 drops back but only to an intermediate position engaged behind a secondary shoulder on pawl 68 so that the door is held part open. When conveyer 64 has cleared the pin the ball engages again the bumper and the door can open fully. U.S.A. Specification 2,765,172 is referred to.
Patent GB-946217-A (GB)
Title: Improvements in thermoprinting apparatus and method
IPC: G03B27/30
Filed: 1959-10-20
Abstract: 946,217. Control systems for space discharge apparatus. MINNESOTA MINING & MANUFACTURING CO. Oct. 20, 1959 [Oct. 20, 1958], No. 25867/63. Divided out of 946,216. Heading H2H. [Also in Division H1] In a thermographic contact copying apparatus a flash lamp 35 having electrodes at opposite ends of an elongated portion of the lamp envelope filled with a noble gas such as xenon at a pressure of from 500 to 760 mm. Hg and the bore of the elongated portion being not more than 2 mm., and having a trigger electrode 42 mounted parallel to but separate from the narrow bore portion, is supplied from a storage capacitor 84 charged by a half-wave rectifier unit. To ensure that the rate of feed of the assembly of original and copy paper past the lamp is so related to the frequency of the radiation pulses from the lamp that the assembly is uniformly irradiated, a double cam 60 geared to a roller which feeds the assembly through the machine controls the time at which charging of the capacitor 84 starts and the time at which the trigger electrode 42 is energized from the capacitor 88. The main switch 75 having been closed to energize the machine drive motor 46, the entry of an assembly of original and copy paper into the machine closes a switch 74 which energizes a time delay relay 102 which in turn releases a latch 66 on the shaft of the cam 60 and energizes a relay 107 completing the primary of the transformer 77. The purpose of relay 102 is to ensure a further flashing of the lamp after the original and copy paper have allowed the switch 74 to open. When this has occurred the cam 60 is held by its latch 66 in the position shown so that both capacitors 84, 88 are held discharged. If a power failure occurs a switch 94 normally held open by a relay 93 closes to discharge the capacitor 84 through resistor 92 and interlock switches 111 have the same effect if the machine cover is opened, while opening of the main switch 75 has the same effect also. In order to maintain the lamp output constant in spite of mains fluctuations, the voltage across the capacitor 84 is kept constant by a voltage divider pick-off circuit 112 which by co-operation with a constant reference voltage &c. via transistor amplifiers 119, 121 alters the impedance of a winding 132 in the charging circuit. The description is identical with that of Specification 946,216.
Patent GB-160486-A (GB)
Title: Improvements in and relating to electric heat radiators
IPC: F24C7/06
Filed: 1919-10-22
Abstract: 160,486. Berry, A. F. Oct. 22, 1919. Electric radiators.- In high-power radiators of the electric lamp type worked at high incandescence and provided with reflectors, the upper or rear part of the bulb is provided with a matt, dead, frosted, or roughened surface to absorb and radiate heat, the lower or front part being left clear. The surface may be produced by a sand-blast or may consist of a layer of lamp-black. In the lamp shown in section in Fig. 1, the inner surface of the bulb at a is reflecting, and the outer surface at b' rough. In a modification, the outer surface of the glass is provided with a reflecting coating having a heat-dissipating backing. In the lamp shown in Fig. 2, a zig-zag tungsten or other filament d, which may have a matt surface, is mounted on a prismatic glass or silica rod e having a roughened back surface e<1>. The lamp contains curved reflectors having rough back surfaces a<2>, and the part of the bulb behind the reflectors is roughened inside and outside as shown. As shown in Fig. 3, the rod e is mounted in end supports g having reflecting inner faces hand rough outer surfaces h<1>. The parts of the bulb behind the supports g are provided with heatdissipating surfaces inside and outside. The caps i may be cooled by ribs j or by a fluid. A number of such radiators may be mounted in a carrier k vertically adjustable on a stand m having a reflecting surface m<1>. An adjustable hood n is pivoted on the carrier k, an air-passage o being left between the hood and carrier. Specifications 122,207 and 122,210, [both in Class 39 (ii), Electric lamps, Incandescent], are referred to.
Patent GB-640350-A (GB)
Title: Improved process for the manufacture of conical tubes and apparatus for carrying outthe process
IPC: B21B21/00
Filed: 1946-08-29
Abstract: 640,350. Drawing. CALMES, A. Aug. 29, 1946, No. 26023. Convention date, Aug. 29, 1945. [Class 83 (iv)] Dies; mandrels.-Taper tubes are produced from cylindrical blanks by drawing on a mandrel through a series of dies that are formed by the passes of pairs of segmental eccentric rolls rotated at a speed related to that of the tube according to the taper required. The blank, heated in a furnace A, is removed axially parallel to the draw-chain F on to which it is transferred by lateral movement. A carriage C mounting a taper mandrel D is then advanced rapidly to insert the mandrel into the tube, after which traverse at drawing speed is-effected by the chain F. The tube enters each roll pass when this presents its minimum diameter and travels continuously through pases I to V. These are maintained in corresponding relation by gears P<SP>1</SP>, p<SP>2</SP> connecting each roll pair and by worm-wheels O engaging a common worm N driven from a motor L through a change-speed gear M. The chain F is driven from a motor I through an electromagnetic clutch K. The tube may enter the roll pass initially at other than its minimum diameter, drawing being completed by a second passage through the machine. Tubes may be drawn to partcylindrical and part-taper form or the tube may taper from an intermediate point towards each end. All the passes except the last may be of elliptical form.
Patent GB-1200955-A (GB)
Title: Doppler inertial system with accurate vertical reference
IPC: G01C19/38
Filed: 1968-05-30
Abstract: 1,200,955. Inertial navigation systems. SINGER GENERAL PRECISION Inc. May 30, 1968 [July 19, 1967], No.26032/68. Heading G1C. An airborne vehicle navigation system comprises an inertial navigation apparatus coupled to a Doppler radar system giving information regarding heading, and velocity along east-west and north-south axes for a craft (e.g. that described in Specification 1,200,029) and a vertical reference unit including platform 126 remote from the inertial navigation system having two degrees of freedom about the craft pitch and roll axes and providing accurate vertical reference signals by way of pick-offs 132, 134 to device 124 requiring such signals, the platform 126 being maintained in level orientation by a two-degree of freedom gyro 140 coupled to torquer motors 148, 150, and the platform 126 also supporting an accelerometer 142 giving signals A h  and A ch  representation of heading and cross-heading accelerations of the craft which after comparison in a resolver 156 with a heading signal H from the inertial navigation system give signals AN A  E  representative of craft accelerations along the north-south and east-west axes, and then after integration in circuits 180, 190 give corresponding velocity signals V N , V E  which are compared with velocity signals VdN, VdE, obtained from the inertial navigation system, giving rise to error signals or misalignment of the platform 126 which are fed back through a further resolver 170 to correct the orientation of the gyro 140. Circuits 184, 194 provide negative feedback for the integrator circuits 180, 190 and circuits 178, 188 compensate for the effects of Coriolis acceleration.
Patent GB-486718-A (GB)
Title: Improvements in the production of rubber threads
Filed: 1937-09-27
Abstract: 486,718. Rubber threads. KOLNISCHE GUMMIFADENFABRIK, VORM. F. KOHLSTADT & CO. Sept. 27, 1937, No. 26143. Convention date, Oct. 9, 1936. [Class 70] [Also in Group VIII] Rubber thread or tape is made by cutting unvulcanized or partially vulcanized rubber sheets with heated cutting devices, the thread being kept in contact with the cutting device till the cut edges are vulcanized. In this way, the tendency for the individual threads to adhere to the cutting device or to one another is overcome. In the Figure, the cutting device employed consists of two parallel shafts of rotating disc blades b<1> and b<2>. The rubber sheet a is converted into threads which enter the gaps between individual blades and are removed by take-off rollers c<1> and c<2>. Other types of cutting devices used include : a grooved feed roller or conveyer band, the blades of a single shaft of disc cutters entering the grooves ; a conveyer band consisting of a number of parallel wires, the blades of a single shaft of disc cutters engaging between the wires ; a profiled cutting band passing over the rubber sheet ; a feed roller or conveyer band provided with an elastic backing, the blades of a single shaft of disc cutters entering the elastic backing.
Patent GB-1034371-A (GB)
Title: A transfer for the transfer of thermoplastic adhesive to textile materials
IPC: C09J7/35
Filed: 1963-07-02
Abstract: A discontinuous layer of thermoplastic adhesive is applied to textile material e.g. woven fabric, knitted fabric, non-woven material, fibre sheet from a transfer which comprises a backing of a non woven fibrous material with a pattern of a thermoplastic dry cleaning resistant heat-activatable adhesive over a surface thereof.  The weight of the adhesive pattern may be between 15 and 30 grams per square meter.  The backing may be a silicone-coated paper.  The thermoplastic adhesive may be polyamide or polyacrylic resin based. The transfer may be made by distributing the thermoplastic adhesive in a pattern over the backing of non-adherent non-woven fibrous material and causing the adhesive to set on the backing.  The adhesive in the liquid state e.g. an aqueous emulsion or a solution in an organic solvent, may be distributed over the backing by spraying or by impression.  The adhesive may be set by passing the transfer through a tunnel dryer.  The transfer is applied to the material with the thermoplastic adhesive applied to a part of the material which is to be rendered thermo-adhesive, heat and pressure are applied to the resultant assembly so as to soften the adhesive and cause it to adhere to the material, and the backing is peeled off after the adhesive has cooled.
Patent GB-152867-A (GB)
Title: An improved method of and means for securing boundary marks or the like
IPC: G01C15/04
Filed: 1919-10-27
Abstract: 152,867. Edwards, A. E., (Dray, H. T. R., Middleton, G. B., and Spicer, W. T.). Oct. 27, 1919. Boundary stones.-A stone or concrete slab E is placed over the threaded pile head C to which is secured the hollow cap D having a box 6 carrying the threaded projection 7. This cap is then filled with cement to secure the whole mass. The cap D may be fixed to the pile head by means of a bayonet joint. The pile head is attached by a wire rope, chain, or bar to a pile screw A. The cap D has lugs 8, and the pile head C is squared to engage spanners as shown.
Patent GB-834399-A (GB)
Title: Production of germ-free gelatin
IPC: C09H5/00
Filed: 1958-08-15
Abstract: A germ-free gelatin is prepared by heating normal commercially obtainable dry gelatin in a current of dry air at a temperature below 100 DEG  C. until the moisture content of the gelatin is less than 1% by weight, and sterilizing the product thus obtained.  The sterilization may be carried out by heating at a temperature substantially above 100 DEG  C., e.g. between 120 DEG  and 125 DEG C., for example, in a current of dry air.  The gelatin may be stored, after sterilization, under sterile conditions and with access of air until it again has the moisture content of normal commercially obtainable dry gelatin.
Patent GB-241925-A (GB)
Title: Improvements in swivel joints for fluid conduits or pipes
IPC: F16L27/08
Filed: 1925-10-22
Abstract: 241,925. Tecalemit, Ltd., (Assignees of Soc. Anon. des Etablissements TÚcalÚmit). Oct. 22, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Addition to 224,919. Stuffing-box joints. - In the spigot - and - socket swivelling joint described in the parent Specification, the spring-pressed glands bearing on the spigot ends are 'replaced by sleeve-like packings r of suitable material, positioned between the spigot and socket members b<1>, b<2> and a respectively and pressed between a shoulder g on the spigot end and a gland element s fixed in the outer end of the socket. The whole is held by a gland nut u, and means are preferably provided for preventing rotation of the gland element s relative to the socket a, said means consisting of a pin t fixed in the body a and penetrating a notch formed in the element s.
Patent GB-732228-A (GB)
Title: Improvements in or relating to containers
IPC: B65D1/26
Filed: 1951-11-13
Abstract: 732,228. Cartons. BRUUN, O. J. Oct. 28, 1952 [Nov. 13, 1951], No. 26565/51. Classes 66 and 125 (3). A cup-shaped container made from a single blank of metal foil with wavy corrugated side walls 2 has the corrugations in a band at the open end of the container compressed to form a flat compact circumferential section 1 to increase the rigidity of the edge and form a seat for a fluidtight lid, the corrugations below the band being left as open corrugations down to the bottom of the container. The tops of the corrugations below the flattened band form a shoulder on which may seat a disc closure 17, Fig. 10, and the band may be bent over inwardly as shown to retain the closure in place. A layer of plastic sealing compound may be applied on one or both sides of the flattened band and the lid may comprise a disc 5 with a U-section rim 4a, Fig. 6, adapted to take over the band and be clamped thereto. The outside rim of the lid may be corrugated to form regular folds when compressed, and the lid may have a transparent window.