baber/WOPTO huggingface dataset:
Patent GB-936719-A (GB)
Title: Improvements in or relating to a superconductive switch
IPC: G11C11/44
Filed: 1959-10-12
Abstract: 936,719. Superconductor circuits. GENERAL ELECTRIC CO. Oct. 12, 1959 [Oct. 13, 1958], No. 34483/59. Class 40 (9). An arrangement for switching current from a current source 5 through only one of a number of loads 6 to 9 includes superconductive elements 1 to 4 in series with the loads. Each element is made superconducting or resistive by a magnetic field produced by control currents in a pair of windings. In Fig. 1, series connected windings 18 to 21 are identical and the current therethrough is controlled by a potentiometer 17. The turns on the series connected windings 13 to 16 are proportional in number to the turns shown and the current from source 12 is just sufficient to produce in winding 13 a magnetic field greater than the transitional field of the superconductive element. The magnetic fields produced in windings 14, 15, 16 are integral multiples of the field in winding 13. The magnetic fields produced by the two series of windings are in opposition and the potentiometer is adjusted so that the resultant fields drive all but a selected one of the superconductive elements resistive. In the selected element the difference between the two opposing fields is insufficient to drive the element resistive. A dummy load 46 takes the current from source 5 when all the loads are cut off. A differentiating circuit 49 operates a trigger 48 to energize windings 47 and cut off the loads during the transfer of current from one load to another. In a modification, Fig. 3, the superconductive elements 1 to 4 are aligned on the axis of two coils 50, 51 one, 51, being uniformly wound and the other 50 being wound with a variable pitch. The individual elements 1 to 4 may be joined (Fig. 5, not shown) to form a single length of superconductive material.
Patent GB-1262892-A (GB)
Title: Uniform distribution of gas in an autogenous bed of fluidized material
Inventor: SCHENCK HERMANN
IPC: C21B13/00
Filed: 1969-07-09
Abstract: 1,262,892. Iron ore reduction in fluidized bed. H. SCHENCK and W. WENZEL. July 9, 1969, No.34538/69. Heading C7D. An autogenous bed of fluidized material consisting of fine-particulate solid material and gaseous material formed in the bed itself from solid or liquid material is supplied with gasevolving materials in the form of particles of which between 2 and 8% have a size less than 0À05 mm, 2-8% have size 0À05-0À1 mm, 8-20% have size 0À1-0À5 mm, 15-40% have size 1-2 mm. 15-50% have size 2-5 mm, and 2-8% are coarser than 5mm, so that smaller particles react in the upper portion of the bed, and larger particles drop downwardly and react in the centre and bottom of the bed, thus ensuring uniform gas distribution. The process is applicable to the reduction of particulate iron ore using particulate coke. A liquid gas-liberating layer (e.g. an oxidic slag layer) may be produced directly below the fluidized bed, and in an electrically heated bed gas evolving material may be fed to the bottom of the bed through hollow electrodes.
Patent GB-172521-A (GB)
Title: Improvements in resilient wheels
IPC: B60C7/12
Filed: 1920-12-07
Abstract: 172,521. Hance, W. Dec. 7, 1920. Spring wheels.- The sectional metal tyre C rests on a ring B, of a resilient composition held in a channel-section rim A and is secured by U- shaped straps D passing over the ends of the sections and secured to plates E bearing on the inner face of the rim. The arms of the straps lie in grooves in the sides of the rim or pass through holes formed in beadings thereon. A spring is interposed between the plate E and the rim.
Patent GB-1019143-A (GB)
Title: Key or like fob
Inventor: BOTTELEY RAYMOND
IPC: A44B15/00
Filed: 1962-09-11
Abstract: 1,019,143. Key holders. COMMERCIAL PLASTICS DISPLAYS (COVENTRY) Ltd. Addition to 913,494. Heading A4G. In a key or like fob as claimed in the parent Specification the ring 2 passes through a metal eyelet 11 at the narrow end of the pearshaped fob of plastics sheet 3 covering plastics foam filling 5, and a transparent film 13, welded at the edges of the fob, may cover advertising matter.
Patent GB-1534715-A (GB)
Title: Mains electricity supply socket assembly
IPC: H01R13/66
Filed: 1976-08-20
Abstract: 1534715 Two-part couplings LINOLITE Ltd 20 Aug 1976 [20 Aug 1975] 34652/75 Heading H2E  A mains electricity supply socket has incorporated in the electrical path to the contact which is live in use a positive temperature coefficient (p.t.c.) resistor. As shown, a shaver socket 4 is provided with a p.t.c. resistor 28. The temperature coefficient of the resistor is selected so to provide a resistance at normal room temperature of less than 200 ohms, and preferably less than 80 ohms, but which increases rapidly at a set temperature to a resistance of over 10,000 ohms at a temperature of 130‹ C., which is arranged to be its stable temperature during a short circuit across the socket terminals. The shaver socket 4 forms part of an assembly 2 in which are also located fluorescent light sockets 6, 8, the light sockets and the shaver socket being connected by way of a switch 22 to mains connectors 10, 12.
Patent GB-1205092-A (GB)
Title: Releasable fastening mechanism for tilting cabs on vehicles
Inventor: COTTON JOSEPH HENRY
IPC: B62D33/07
Filed: 1968-07-20
Abstract: 1,205,092. Fastenings. BLOXWICH LOCK & STAMPING CO. Ltd. 9 July, 1969 [20 July, 1968], No. 34710/68. Headings E2A and E2B. A fastening for the tilting cab of a lorry comprises a hook 10 which is pivoted at 17 and is drawn up by screw bolt 21 and nut 16 to engage a keeper 12 on the lorry chassis, an arm 26 engaging a fixed roller 25 to swing the hook clear of the keeper when it is screwed down into the releasing position. The hook is formed of two forgings 13 and the trunnions 17 are guided in slots 18 in the frame. A second guide roller 27 serves to align the hook with the keeper during upward movement. A safety hook 28, engaging a second keeper 29 which is forced into its engaging position when the main hook is raised. When the main hook is released, the safety hook may be released by means, e.g. a Bowden cable at 32.
Patent GB-348767-A (GB)
Abstract: 348,767. Atmospheric gas burners. KEITH & BLACKMAN CO., Ltd., J., and KEITH, G., 27, Farringdon Avenue, London. March 13, 1930, No. 8126. [Classes 75 (i) and 75 (iii).] A gas heating system for bakers' ovens comprises burner devices, connections for supplying separately combustible and combustion-supporting media to the burner devices, means for governing the pressure of the combustible medium to atmospheric or sub-atmospheric pressure, induced draught means for withdrawing products of combustion and means for variably throttling the induced draught to regulate the flow of the media to the burner devices. Gas under the control of governors 12, Figs. 10 and 13, which may be of the kind described in Specification 270,786, [Class 75 (i), Burners &c.], is supplied to transverse combustion headers 5 arranged above and below the travelling chain or plate of the oven with atmospheric air and the combustion products pass from the combustion headers through groups of tubes 6 arranged longitudinally of the oven to transverse exhaust headers 7 leading into exhaust boxes 8 communicating through pipes 9, with an exhaust fan, the outlets from the headers being controlled by valves 15 which are provided with apertures 54 to prevent them being closed entirely. Air may also enter the exhaust boxes through the hollow spindles 151 of the valves. In place of exhaust fans ejectors may be employed as described in Specification 341,860, [Group XII]. Figs. 3 and 4 show the burners arranged in the combustion headers 5 which are provided with external ribs 5<2>. Gas under the control of an obturator 52 and cock 47 passes with a small quantity of air entering through ports 46 through a nipple 38 into a perforated tube 22 extending throughout the combustion header. Atmospheric air from a chamber 40 passes through a nipple 37 into a similar perforated tube 21. The air and rich aerated gas mixture passes through perforations 24, 25 and form intersecting streams which ignite and burn in the space provided. between tiles 27, 28 supported on transverse bars. 30 which with the tubes 21, 22 are resiliently supported on strips 33, 34. The tiles are held in place by wires 31. The gas cock handle 48 is interconnected with a plug valve 50 to control the admission of air from the atmosphere to the chamber 40. A sight hole 55, Fig. 8, and pilot light 56 are provided at the front of the combustion header, the pilot light being fed with gas drawn through an annular space 57 surrounding a tube 58 open to the atmosphere.
Patent GB-508282-A (GB)
Title: Improvements in apparatus for discharging fluids from containers arranged on aircraft
IPC: B64D37/00
Filed: 1938-11-30
Abstract: 508,282. Delivering liquids from tanks. FEIGL, B. Nov. 30, 1938, No. 34910. [Class 102 (ii)] [Also in Groups XVII, XXIX and XXXIII] It is arranged that discharge of liquids from aircraft can take place only during flight by utilizing for the liquid a container 1, Fig. 1, having a siphon 6, 7 the knee 9 of which is obturated by a valve 10, Figs. 1 and 2, until this valve and a valve 5 are opened by actuating a rod 16 (by means not shown) so that wind, caused by the flight of the aircraft, and entering a mouth 3, can pass the valve 5 into the interior of the container 1. The opening of a cock 12 then permits the establishing of the siphon and outflow of liquid through a nozzle 15. The premature establishing of the siphon is prevented by openings 18 and 20, 21, Fig. 3, in the tubular valve rods which connect limb 7 of the siphon and pressure inlet tube 2 with the atmosphere, but are closed by the valve casing when the valves 5, 10 are open. A control flap 11 permits control of outflow. The siphon is broken by suction applied in leg 7 from a venturi tube 14. The venturi tube may also constitute the outflow nozzle. In a modified form the valves 5, 10 may be arranged side by side, the connecting tube being of V-shape.
Patent GB-745771-A (GB)
Title: Improvements in steam generators
Inventor: POUCHER DENNIS
IPC: F22B7/12
Filed: 1953-12-16
Abstract: 745,771. Return-tube steam boilers. MARSHALL SONS & CO., Ltd. Dec. 10, 1954 [Dec. 16, 1953], No. 34992/53. Class 123(2). In a return-tube boiler having a shell 1, a dry-back combustion chamber 4 is secured to the back plate 3 of the shell so as to project thereinto, the chamber wall 5 being subject to the boiler pressure. The chamber 4 is closed externally by a refractory-lined plate 6. One or a pair of furnace flues 9 pass through the shell 1 from the front plate 2 to the front wall 10 of chamber 4 and one or a pair of return flues 11 pass from wall 10 to the front plate 2 and discharge gases into a main exit flue 12. In a modification, the boiler is mounted on a brickwork setting, the gases from flue 11 passing rearwardly through the setting in contact with the shell to an exit flue at the rear end of the boiler.
Patent GB-467271-A (GB)
Title: Improvements relating to multiple-filament electric lamps
IPC: H01K9/04
Filed: 1935-12-17
Abstract: 467,271. Two - part couplings. EDWARDS, L. C. Dec. 17, 1935, No. 35001. [Class 38 (i)] A cap for a multiple filament lamp comprises relatively-movable parts for varying the connection of the filaments to the supply, the parts being resiliently retained in the various positions to prevent movement therefrom except by deliberate operation. The shell 1 carrying the bayonet-pins 2, or other means for attachment to a holder, encloses fixed insulating blocks 3, 4, the lower having a pair of contact plates 17 connected to the cap contacts. Another block 5 secured to the bulb by a shell 6, carries three contacts 19 with projections 22 to engage the plates 17 under the action of a spring 11 that acts longitudinally on a pin 7 on which the block 5 turns. The blocks 4, 5 have interfitting segmental projections 14, 15 that retain the blocks in any of several relative positions so that the filaments can be operated singly or in series or parallel. According to the Provisional Specification the contacts themselves may be resilient to form the locking device.
Patent GB-369557-A (GB)
Title: Improvements in diaphragm pumps
IPC: F04B9/06
Filed: 1930-11-20
Abstract: 369,557. Diaphragm fuel pumps. ROCKWELL, E. A., 1826, Diversey Parkway, Chicago, U.S.A. Nov. 20, 1930, No. 35028. [Class 102 (i).] A diaphragm pump for raising fuel comprises a diaphragm 40 clamped between plates 41, 42 secured to a stem 100. A bush 100x is arranged within the hollow portion of the stem 100 and secured thereto by peening over the margin at 100a.The diaphragm is operated by a cam 125 through a lever 120 the end of which fits in the slotted end of the rod 103. The spring 106 fits between the collars 104, 105 in the casing and a washer 108 and causes the suction stroke, whilst the spring 107 fits between the collar 108 and a reduced portion of the bush 100x and transmits movements of the lever 120 to the diaphragm. The end of the stem 100 is tapered at 100v and at the rearward stroke of the pump at low speeds, the tapered portion 100v frictionally engages the split washer 105 and is held, thus modifying the action of the spring 107. The pump suction is through the passage 51, filter 50 and suction valve, and delivery takes place through passage 24, delivery valve, and passage 26b. The loading of the delivery valve is made stronger than that of the suction valve. In a modification the casing is designed so that the lever 120 is omitted and the cam acts directly upon a stem arranged coaxially with the rod attached to the diaphragm.
Patent GB-638454-A (GB)
Title: Improvements in or relating to the production of ventless delay initiators for explosive or other charges capable of exothermic reaction
IPC: F42B3/11
Filed: 1947-12-31
Abstract: 638,454. Electric blasting-fuzes. LEWIS, I. O., OWENS, R. D. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 31, 1947, No. 35029. [Class 9 (i)] A ventless delay electric blasting- initiator comprises an aluminium tube 1 into which is compressed a detonating charge 2 of tetryl and a more sensitive charge 3 of lead azide and lead styphnate. Over this is a gasless igniting composition 4 of antimony and potassium permanganate in the ratio 30 : 70 by weight. Furthermore, a delay fuze element inserted above the composition 4 has an envelope 5 of waterproof-coated textiles surrounding a thermoplastic core 6, the required fuze length being cut off from a wrapped extruded fuze cord. The core may be a 75 : 25 mixture by weight of red lead and silicon in a plastic consisting of methyl methacrylate polymer and dibutyl phthalate in equal proportions, the proportion of active ingredients to plastic being 90 : 10 by weight. The core has a diameter of 2 mm. and it may be extruded round a 36 S.W.G. copper wire 12. Over the fuze may be a layer 7 of the gas-less igniting composition with a perforated metal cup 8 inverted over it. An electric fuzehead 9 with insulated leading wires 11, 11<SP>1</SP> is held in place by a sealing plug 10 crimped into the tube. The fuze element has a length of 0.7 cm./ sec. of delay period.
Patent GB-733998-A (GB)
Title: Improvements in or relating to methods of and devices for regulating the inflow of material in a pneumatic conveyor installation
IPC: B65G53/42
Filed: 1953-12-16
Abstract: 733,998. Pneumatic conveyers. BUHLER, GEB. Dec. 16, 1953 [Dec. 16, 1952], No. 35038./53. Class 78 (1). In a conveyer system in which the feeding of material into the pipe-line is regulated in accordance with variations in pressure in the system, the feed is regulated by a pivoted member 12, Fig. 1, the position of which is dependent on the difference in pressure at the points 17, 18 of the system. The member 12 is pivoted on the outlet of a storage container 14 and is connected by a link 11 to a diaphragm 10 separating the chambers 8, 9 of a control device 7. These chambers are connected by pipes 6, 5 to the points 18, 17. A diaphragm 20, which separates the chamber 9 from a chamber 21, contains an aperture which can be closed by a cover 19 connected to the link 11. When the diaphragm 10 moves to the left to close the member 12, the aperture in the diaphragm 20 becomes uncovered and a rapid equalization of pressure takes place in the chambers 9, 21. The movement of the member 12 is thus accelerated. When the diaphragm 10 moves to the right and the cover 19 seats on the diaphragm 20, the opening movement of the member 12 is retarded. In a modification, Fig. 2, the inlet 24 of the system 25, contains a pivoted flap 27 having a weighted arm 28. When the system is not under suction, the flap is forced to the left by the weight 28 and the air inlet 29 is closed. When suction is applied to the system, the flap 27 moves to the right and air entering at 29 carries the material upwards.
Patent GB-1263938-A (GB)
Title: A method of producing a cartridge case
IPC: F42B5/28
Filed: 1969-07-11
Abstract: 1,263,938. Making cartridge cases; upsetting. WERKZEUGMASCHINEN-FABRIK OERLIKON-BUHRLE A.G. 11 July, 1969 [12 July, 1968; 16 July, 1968 (2)], No. 35107/69. Headings B3A and B3H. [Also in Division F3] A cartridge case is made by cold upsetting a blank sheared from a bar stock, backward extruding the blank and axially pressing the cupped article formed to shape the base of the case in one pressing. The degree of upsetting is selected so that any defects in the blank become visible as surface cracks. The defective blanks are sorted out either visually, mechanically, electrically or pneumatically. The bar stock is steel with a carbon content of below 0À3%, preferably 0À16 to 0À25%. The cupped article is heat treated to restore the strain-hardening property to the steel. The heat treatment comprises heating the article to above the A3 transformation point, holding this temperature for 1 to 5 minutes and rapidly cooling at 50‹ to 100‹ C. per minute. The heating may be induction or by a gas or oil furnace. This treatment prevents the formation of coarse grains particularly between the base and side walls of the case.
Patent GB-1509027-A (GB)
Title: Transmission
IPC: F16H3/66
Filed: 1975-08-26
Abstract: 1509027 Change-speed gearing; friction clutches CATERPILLAR TRACTOR CO 26 Aug 1975 [27 Aug 1974] 35251/75 Headings F2D and F2C A multi-ratio transmission, as shown providing six forward ratios and reverse, comprises an input shaft 17, first and second intermediate shafts 61, 62, three interconnected planetary gear sets with ratio-establishing friction brakes 34, 36, 37, an output shaft 54, and friction clutches 32, 33 for selectively connecting either or both simultaneously of the intermediate shafts with the input shaft. An arrangement for vehicular application is described in which the input shaft is connected to a power unit through a torque converter (not shown) which has a lock-up clutch which may be disengageable for each ratio shift, a stator or reactor with an overrunning clutch, and a power take-off shaft driven from the input element of the torque converter. Engagement and disengagement of the overrunning and lock-up clutches may be responsive to the rotational speed of a component of the drive train. Fluid pressure engagement of the clutches 32, 33 in the assembly 12 and of the brakes 34, 36, 37 is controlled by a valve (not shown). Gear arrangement.-A first planetary train has a sun 91 permanently connected to the input shaft through a tubular shaft 92 and the housing 57 of the clutch assembly 32, 33, a planet carrier 88 controlled by the brake 34, and a ring gear 89 controlled by the brake 36 and formed integrally with the ring gear 84 of a second train. Planets 86 mesh with the ring gear 89 and with planets 87 meshing with the sun 91. The planets 83 of the second train, meshing with both the ring gear 84 and a sun 66 driven by the shaft 61, are mounted on a carrier 82 which has a driving connection with the shaft 62 and is attached to the ring gear 78, controlled by the brake 37, of the third train. The planet carrier 73 of the third train drives the output shaft 54, and the planets 77 mesh with both the ring gear 78 and a sun 67 driven by the shaft 61.  Clutch assembly.-Pressure fluid is admitted to chambers 127, 137 to displace pistons 126, 136 to engage the clutches. To ensure that when engagement of only one clutch is required the other clutch does not engage due to centrifugal action on fluid remaining in its actuating chamber, each piston carries a secondary, annular piston 138, 139 with pins 142 extending from the piston 139 to abut the piston 126 and similar pins extending from the piston 138 to abut the piston 136. Operation.-First, second and third forward ratios are established when, with the clutch 32 engaged, the brakes 37, 36, 34, respectively, are applied; fourth or direct drive is obtained by engagement of both clutches 32, 33; and overdrive fifth and sixth ratios are established by application of the brakes 34, 36, respectively, with the clutch 33 engaged. The brake 37 is engaged for neutral, and 34 and 37 for reverse.
Patent GB-869970-A (GB)
Title: Improvements in chain making machines
IPC: B21L1/00
Filed: 1959-10-19
Abstract: 869,970. Making chains. ANNEGARN, J. M. J. Oct. 19, 1959, No. 35261/59. Class 83 (4). A chain-making machine comprises a wire feed mechanism coupled to be driven in unison with a former and a reciprocating pusher bar, both members co-operating with a fixed dieplate, said former being operable in a plane normal to the direction of the wire feed and operating to bend the wire and the pusher-bar being adapted to fold the bent wire through the die-plate. The chain is of the type comprising links, each of which consists of a length of wire bent to form an eyelet with closely adjacent legs projecting therefrom and folded back along themselves towards the eyelet, the bent legs of one link being hooked to the eyelet of the next link and crimped to prevent separation of the links. Wire is fed continuously from a roll 2 through straightening rolls 3, 4, feed rolls 5 to a position in front of a fixed vertical die-plate 6 and the length 15 in front of the die-plate is severed from the supply by a knife 14 on a rotating wheel 12. Thereupon shaped formers 13 on the wheel 12 on passing through vertical slots 8 in the die-plate bend the wire length 15 upwardly about a pin 9 projecting from the dieplate to form an eyelet with upwardly projecting legs positioned in front of an aperture 11 in the die-plate. A pusher-bar 16, having a notched end, is then moved forwards, by crank means 19 coupled to the wheel 12 and feed rolls 5, to push the legs through the aperture 11, folding them back on themselves to form a link 32. A catch plate 22, which may be magnetic, mounted for limited vertical movement behind the die-plate 6 holds the newly formed link 32 in position below a pickup head 23 while the pusher-bar 16 retracts. The pick-up head 23 carries a pivoted hook 24 and is rotated and oscillated by eccentrics 26 so that bent back legs of the link 32 are engaged in the eye of the previous link. The assembled chain is advanced over a notched wheel 29 where final clinching of the links is effected by a wheel 30. The tips 31 of the formers 13 may be replaceable. The formers 13 may reciprocate instead of rotating. The drive may be automatically cut-out on the occurrence of a fault in the operation of the machine.