baber/WOPTO huggingface dataset:
Patent GB-109150-A (GB)
Title: Improvements in or relating to Screw Propeller and like Blades.
Inventor: BOURKE ALEXANDER MORRISON
IPC: B63H1/16
Filed: 1916-11-07
Abstract: 109,150. Bourke, A. M. Nov. 7, 1916. Screw propellers.- A screw propeller blade has alternating ribs and grooves on each of its faces, the grooves b<1> on the pressure face decreasing in depth from the leading edge c to the following edge d, when they merge into the pressure face, and the grooves b on the tension face decreasing in depth from the following edge to the leading edge, where they merge into the tension face. The grooves are preferably parallel or concentric to the axis.
Patent GB-1409332-A (GB)
Title: Measurement of amplitude modulation to phase modulation conversion
IPC: H04J1/16
Filed: 1973-04-04
Abstract: 1409332 Measuring distortion HEWLETTPACKARD Ltd 4 April 1973 16060/73 Heading G1U A method of measuring amplitude - to phasemodulation conversion in a device under test (e.g. an FM multi-channel communication system) comprises feeding a composite amplitude and angle modulated test signal to the device, passing the device output through a frequency to voltage converter and measuring the amplitude or phase modulation of the converter output signal. If the composite test signal is frequency and amplitude modulated at similar frequencies, the converter output varies in amplitude and phase at the difference frequency. Both the peak-to-peak variation in amplitude and phase are proportional to the AM-PM conversion factor.
Patent GB-291413-A (GB)
IPC: H01M4/16
Filed: 1928-06-01
Abstract: 291,413. 1. G. Farbenindustrie Akt.- Ges. June 1, 1927, [Convention date.]. Drawings to Specification. Electrodes for accumulators consist of a lead alloy placed round a core of solid lead without the application of heat, the alloying metal being subsequently removed to leave porous lead. The powdered alloy may be pressed to form a homogeneous coating round the core, or the alloy may first be pressed or cast into tubular form and the core then introduced by pressure. The alloying metal may be eliminated by electrolysis in an acid or alkaline solution, the electrodes becoming formed simultaneously. If sodium is used as the alloying metal it may be removed by sulphuric acid or alcohol. The electrode may be covered with perforated lead or a perforated non-conductor. Several of the finished rods may be united together into a bundle and several such bundles may be joined together to form a plate which may be covered with perforated lead or a perforated non-conducting sheet. The Specification as open to inspection under Sect. 91 (3) (a) states that the lead core mav be introduced into the lead alloy tube by casting, and also that the alloying metal may be removed before the introduction of the core. This subject-matter does not appear in the Specification as accepted.
Patent GB-1524592-A (GB)
Title: Bipolar type semiconductor devices
IPC: H01L29/73
Filed: 1976-04-21
Abstract: 1524592 Bipolar transistor SONY CORP 21 April 1976 [30 April 1975] 16161/76 Heading H1K In a bipolar transistor which has differentially doped emitter regions 6, 7, collector regions 1, 2, 11, and base regions 3, 5, a semi-insulating layer 12 is formed in contact with a surface end of the collector-base junction, and an insulating layer 15 is formed in contact with the lightly doped emitter region 6, with the surface end of the emitter-base junction, and with the surface end of junction J B  between regions 6 and 7. The semi-insulating layer 12 may be oxygendoped polycrystalline silicon, and the insulating layer 15 may be SiO 2 . The distance L from the emitter-base junction J E  to the insulating layer 15 may be chosen to be smaller than the diffusion length for minority carriers in region 6.
Patent GB-1517900-A (GB)
Title: Industrial truck with overhead guard
IPC: B66F9/075
Filed: 1977-04-19
Abstract: 1517900 Industrial trucks TOWMOTOR CORP 19 April 1977 [19 July 1976] 16175/77 Heading B7B The overhead guard assembly 24 of an industrial truck is pivoted to the truck frame at 32 and is held in its upright operative position by the truck battery 16 which rests on a foot 30 projecting from the assembly. When the battery is lifted, the guard assembly pivots under the action of gravity so that the guard 28 does not interfere with the battery removal.
Patent GB-1047161-A (GB)
Title: Method of exposing processing and drying photosensitive film
IPC: G06K13/10
Filed: 1963-04-25
Abstract: 1,047,161. Feeding and delivering sheets. MINNESOTA MINING & MANUFACTURING CO. April 25, 1963 [April 25, 1962], No. 16342/63. Headings B6B and B6H. [Also in Division G2] A supply of film cards is fed one by one from a magazine M to a film taking and processing apparatus. The magazine comprises an outer frame structure 45 and an inner card-holding frame 46, slightly inclined forward, as shown. When frame 46 is loaded with a stack of cards, they are moved forwardly under their own weight until they abut against a front plate 50. A polished transverse plate 62 is secured in front of frame 46, and a weight 63 is supported by a system of spring- tensioned cords for vertical movement, so that the weight applies pressure to the leading edge of the lowest card in the stack and ensures that it lies flat on plate 62. The feeding means comprise a pair of rollers 83, 84 (Fig. 3, not shown) mounted on a shaft 85. The ends of the shaft are carried in a pair of L-shaped plates, as at 86, the plates being pivoted on another shaft 88. An angle-bar 90 is secured to the L-plates, and a rod 91 passes through the angle-bar. Rod 91 has helical springs 92, 93 on either side of bar 90, and is connected to a solenoid 94. On energizing and de-energizing the solenoid, the rod 91 is given a reciprocating movement which causes the L-plates to swing up or down, so bringing rollers 83, 84 into or out of engagement with the lowest card. When in engagement, the card is fed forward, entering between a further pair of rollers 99 which draw it onwards on to a further feeding device (Fig. 8, not shown), which delivers it to a turntable 26 where it is positioned ready for the sequence of photographic operations (see Division G2). In this position, the card has engaged against a slide bar 147 and pushed it rearward in a groove 148. Bar 147 carries a vertical pin 150 which engages against a lever 151, this being made use of subsequently to discharge the card. The card is discharged from the turntable after the final processing step has been carried out. A solenoid 156 is energized, which causes lever 151 to push the slide bar forward again, so driving the card 40 out of position to where it is picked up by rollers 260, 261 and carried into a discharging chamber 259. A blade 267 pivoting on a shaft 268 is now actuated to brush the card upwards into the container D, where the cards are stacked.
Patent GB-402163-A (GB)
Title: Improvements in hat and coat hangers
IPC: A47G25/28
Filed: 1932-06-10
Abstract: 402,163. Hat and coat hooks. MORGAN, P. A., 173, Preston Drove, Brighton. June 10, 1932, No. 16365. [Class 89 (ii).] A combined hat and coat hook comprises a part c adapted to be attached to a wall or hat-stand, an upstanding extension a constituting a hat peg, and a forwardly directed part e formed with or carrying a coat hanger. In a modification both the hat peg and the coat hanger are bent up from a single piece of wire and the device is attached to the wall &c. by a separate plate.
Patent GB-841562-A (GB)
Title: Process and apparatus for separating paraffin wax from wax-containing hydrocarbon oils
IPC: C10G73/02
Filed: 1956-05-28
Abstract: Paraffin wax is separated from a mixture of wax and hydrocarbon oil by spraying the mixture at a temperature above its pour-point through a number of nozzles downwardly in a tower into an ascending stream of air having a <PICT:0841562/III/1> <PICT:0841562/III/2> temperature below the melting-point of the mixture whereby solid granular material is formed from which the wax is subsequently separated, the nozzles being so distributed over the cross-section of the tower that the spray cores from adjacent nozzles do not intersect one another. Fig. 1 shows in cross-section one arrangement of nozzles 4 arranged on a conduit 2 within a tower 1. In Fig. 2, the conduit 2 is outside the tower 1 and radial branch pipes of different lengths terminate in nozzles 4 within the tower, if desired, so as to lie in different cross-sectional planes.  Specification 782,735 is referred to.
Patent GB-418391-A (GB)
Title: An improved quick grip and quick release system of screws applicable to vices and other appliances
IPC: B25B1/12
Filed: 1933-06-09
Abstract: 418,391. Screw-and-nut mechanism. JOUBLIN, E. A. G., 16, Upstall Street, Camberwell, London. June 9, 1933, No. 16510. [Class 80 (iii).] Interrupted screw mechanism for vices &c. comprises, Fig. 1, a screw spindle 8 with interrupted threads 12 coacting with interrupted threads inside an intermediate nut 14 which has an outside continuous thread 17 engaging a continuous thread in a nut 18 fixed to the vice &c. body; nut 14 has at one end an enlargement 19 slotted at 20 to form dogs 21 coacting with dogs 23 on a dog carrier 22 rotating with nut slidable on the spindle 8, the enlargement 19 and dog carrier 22 being held together by a wire 24 located in grooves in dogs 21, 23. A pivoted catch 26 on enlargement 19 coacts with one of the dogs 23 so that when the spindle is turned back to release the work dog 23 drives catch 26 and with it enlargement 19 and nut 14 until a cam 29 on fixed nut 18 engages a cam 28 on catch 26 thereby releasing this catch whereupon continued backward movement of the screw spindle releases the interrupted threads 12. In a modification, Fig. 4, the screw spindle has a continuous thread engaging a continuous thread in an intermediate nut 14 having part rings 32 engaging part rings in the fixed nut 18 ; dogs 23 on a part rotating with the nut 14 coact with gaps 40 in the end of the fixed nut 18 and packing 38 causes friction between the spindle 8 and nut 14 ensuring rotation of the latter when the spindle is rotated prior to the final tightening. The interrupted screw threads may be left-handed and the continuous threads right-handed.
Patent GB-376450-A (GB)
Title: Improvements in steam boilers of the water-cooled furnace type
IPC: F22B37/14
Filed: 1931-06-05
Abstract: 376,450. Water-tube steam boilers ; cooling furnace walls. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Võsteras, Sweden. June 5, 1931, No. 16529. Convention date, June 5, 1930. [Class 123 (ii).] Steam-boiler furnaces are entirely lined with slightly inclined cooling tubes 6 bent to the contour of the wall and connected at opposite sides of the furnace, which in the form shown comprises a vertical cylinder, to vertical ascending and descending headers 2, 3 and 4, 5, communicating directly or by pipes with a steam and water drum 11. In the form shown alternate tubes connect headers 2, 4 and 3, 5, respectively, the headers being protected from radiation. A bank of tubes 7 is arranged above the furnace between headers 8, 9, which comprise extensions to the furnace headers and communicate with the drum through pipes 12, 13. Vertical supporting columns which may be hollow and connected to the tubes 6 may be provided between the headers of large boilers. A separate tube system between the lower ends of the headers may protect the furnace bottom. The headers on one side rest on a support borne on rollers. Oil firing of whirling type suitable for the construction shown may be replaced by chain grates &c. Water circulation may be modified by resistances inserted in the headers.
Patent GB-1069605-A (GB)
Title: Anode assembly
Inventor: SMITH FRANK
IPC: C25B9/04
Filed: 1965-04-20
Abstract: <PICT:1069605/C6-C7/1> An anode assembly comprises a horizontally-extending graphite anode plate 9; a graphite conductor member 1 impregnated throughout with a wax, for instance hydrocarbon or chlorinated hydrocarbon which is solid at the working temperature of the cell, e.g. hexachlorobenzene, or a resin, e.g. polyester resin and terminating in a bore in the upper surface of said anode plate 9; a cylindrical metal conductor terminating in a bore in the upper surface of the graphite conductor member 1 and extending upwardly therefrom, the walls of the bore of the member 1 being coated with solderable material and the metal conductor being fixed thereto by means of a fusible metal or metal alloy solder; and a sleeve of titanium having a cylindrical section 6 closely surrounding the upwardly extending portion of the metal conductor, and a flange 7 at its lower end, which flanged portion 7 is sealed to the upper rim of the graphite conductor member 1 by an interposed layer of sealing material 8 and a bonding agent and may be encircled by a titanium clip (12) Fig. 2 (not shown).  The metal conductor may comprise a steel lower portion 2 and a copper rod 4.  Resilient membranes 3 and (10) Fig. 2 (not shown) may be positioned between the metal conductor and graphite conductor 1, and between the conductor 1 and anode block 9 respectively.
Patent GB-901550-A (GB)
Title: Improvements in or relating to apparatus for transferring finely divided material from a storage bunker to a transport tanker
Inventor: GRANT DAVID PATRICK JAMES
IPC: B65G11/14
Filed: 1959-05-14
Abstract: 901,550. Filling tanker vehicles. VICKERSARMSTRONGS (ENGINEERS) Ltd. May 3, 1960 [May 14, 1959], No. 16594/59. Class 78(1). Cement is fed from a bunker (not shown) to a tanker vehicle T via an extensible shoot 100. The shoot consists of a fixed hopper 1 having a tube 2 and an air outlet 25. On the inside of the hopper 1 and tube 2 is fitted cone 23 and centre tube 24; and on the outside thereof slides cylinder 5, which cylinder carries rollers 7 guided by bars 8 and is counterbalanced at 10. On the outside of cylinder 5 slides cylinder 6, which latter carries rollers 11 engaging with the cylinder 5. Cylinder 6 is counterbalanced at 17 and carries a flexible extension 18 which in turn carries nozzle 19. Nozzle 19 fits inlet I of vehicle T. Operation.-The nozzle 19 is clamped to vehicle inlet I. Air outlet 25 is connected to a gas treatment apparatus and to a fan. Material falls from the bunker down through tube 2 and displaced air is sucked from the vehicle T up through nozzle 19 and up through extension 18 and out at outlet 25.
Patent GB-940529-A (GB)
Title: Improvements in or relating to railway vehicles
Inventor: HIRST ARCHIE JOHN
IPC: B61F5/14
Filed: 1962-05-01
Abstract: 940,529. Railway vehicle undercarriages. METALASTIK Ltd. May 1, 1962, No. 16641/62. Heading B7L. A railway vehicle comprises a bogie 5, Figs. 1 and 2, a body 6, and a suspension supporting the body on the bogie, the suspension comprising two pairs of rubber springs 16, 16 and 17, 17, one pair on each side of the mid-vertical longitudinal plane L of the bogie, each spring being near a side of the bogie and the pairs of springs having their compression axes C 16  and C 17  directed downwardly and inwardly and intersecting at points P 1 , P 2 , on opposite sides of the plane L, on a common transverse axis T and each point being nearer to the plane than the pairs of springs. In an alternative form the axes C 16  and C 17  may intersect at points P 2  and P 1  respectively. The underframe 7 of the body is supported from the bogie frame 8 by side bearers 33. The springs 16, 17 and side bearers 33 are formed of rubber and metal interleaves and the springs 16, 17 are mounted by wedge members between the underframe and bogie frame as described with reference to Fig. 3 (not shown).
Patent GB-554245-A (GB)
Title: Improvements in or relating to sparking plugs for internal combustion engines
IPC: H01T13/08
Filed: 1941-12-24
Abstract: 554,245. Sparking plugs. BENDIX AVIATION CORPORATION. Dec. 24, 1941, No. 16657. [Class 7 (iv)] The central electrode 9 is separated from the plug body 5 by insulation comprising a quantity of metaphosphate of an alkali or alkaline-earth metal, preferably of sodium, calcium, barium or strontium. The metaphosphate may be obtained by dehydrating the corresponding monobasic phosphate. In the shielded plug shown, the electrode 9 is surrounded by a copper tube 11, mica wrappings 14 and upper and lower stacks 20, 18 of mica washers. Powdered sodium metaphosphate, mixed to a paste with sodium phosphate, is placed in a groove 29 separating washers B of the stack 18 and is melted while the washers are under pressure, and then baked at about 250 ‹F. A resin obtained from cashew-nut-shell oil is applied in liquid form at 27 to the washer stack 20 and pressure is applied, the upper end of the electrode 9 being turned over a washer 22 to retain the assembly in compressed relation. A groove 13 in the copper tube 11 limits the downward penetration of the resin. The completed assembly is baked for several days at 200‹-500‹F. to set the resin 27. Specification 549,580 is referred to.
Patent GB-239650-A (GB)
Title: Improvements in and relating to the automatic control of electric motor converters
IPC: H02K47/04
Filed: 1924-07-11
Abstract: 239,650. British Thomson-Houston Co., Ltd., Whitaker, F. P., and Sarjeant, C. J. July 11, 1924. Synchronizing dynamo-electric machines.-In an automatic control system for a motor converter, a generator 8 driven by the converter is connected to am auxiliary field winding 7 of the converter on starting in order to fix the polarity. On closing a control switch 1, the coils 2, 3 of the main switch 4 and the auxiliary field contactor 5 are connected to the control bus-bars. The switch 4 connects the stator windings 6 of the converter to the alternating-current mains, and the machine starts to rotate, the rotor windings being conneced through the slip rings in series with non-inductive resistances A1 - - A3 and choking coils B1 - - B3 permanently connected in parallel. At the instant of closing the main switch 4, maximum voltage is obtained across the starting resistances, and a relay 9 connected across one of these lifts its plunger and completes the circuit of the coil 11 of an auxiliary contactor 12. The latter completes a maintaining circuit for the coil 11, and prepares the circuit of the coil 19 of the resistance shortcircuiting contactor 20. The latter circuit is completed through a contactor 33 when the plunger of the relay 9 returns to its normal position, which takes place when the machine is running in synchronism and the voltage drop across the starting resistances is a minimum. The closing of the contactor 20 short-circuits the slip rings of the converter and completes, through a limit switch 45, 46, the circuit of a motor 47 which operates a short-circuiting device 55. Auxiliary field contactors 22, 25 short-circuit portions of a resistance 28 in series with the main field winding 29 at the proper times in order to give the correct field strengths for synchronizing and normal running of the converter. An interlock switch 36, 37 on the contactor 20 disconnects the auxiliary field winding 7 from the generator when synchronism is reached. Specification 171,796, [Class 38 (ii), Electric currents, Converting &c.], is referred to.
Patent GB-813884-A (GB)
Title: Blade ring for radial flow elastic fluid machines
IPC: F01D5/04
Filed: 1957-05-27
Abstract: 813,884. Radial-flow turbines and compressors. INTERNATIONAL STAL CO. A.B. May 27, 1957 [Aug. 11, 1956], No. 16807/57. Class 110 (3). In a blade ring for radial-flow elastic fluid turbines or compressors comprising blades and at least two bond rings therefor, each blade is provided at one end or both ends with overhanging portions which act to balance the weight of the blade profile portion. In Fig. 1 the blade 1 is provided with roots 4, 5 which are grooved at 6 and bond rings 2, 3 are engaged with the blade grooves, the bond ring 3 being connected to a rotor disc 8 by means of a connecting ring 10. The blade roots are extended at 7 to provide overhanging portions. In a further embodiment, Fig. 3, the overhanging portion n is shaped to provide a further passage for the flow of working fluid. In this embodiment also, more than one passage for flow of working fluid, shown at a and m, are provided between the blade root portions. The sides of the blade roots 4, 5 are notched at 9 so as to engage the support rings. In Fig. 4 the connecting ring 10 is provided with an inturned annular flange 13 which engages in a groove 14 formed in the overhanging portions 7 of the blades so as to permit relative radial movement between the parts. The flange 13 is formed with projections 15 which engage in grooves formed in or between the overhanging elements 7 so as to permit transfer of tangential forces.
Patent GB-145505-A (GB)
Title: Lifting jack
IPC: B66F3/14
Filed: 1920-06-22
Abstract: 145,505. King, S. A., (Representative of King, H. A.). Oct. 19, 1916, [Convention date]. Jacks.-In jacks of the screw type actuated by ratcliet mechanism, the ratchet teeth 15 are formed by cutting slots 16 out of the lifting-pillar 5. The ring 12 supporting the actuating - handle 11 passes freely over the pillar 5 and is supported by the nose of the pawl 17 resting on the bottom of one of the slots 16.
Patent GB-240575-A (GB)
Title: Improvements in beer and wine taps
IPC: B67D1/14
Filed: 1924-07-14
Abstract: 240,575. Watts., H. W. July 14, 1924. Casings; outlets.-A beer &c. tap of the plug cock type having an enlarged front head 2 is provided with a detachable nozzle 5 secured by screwing, or by a bayonet-slot connection, to a short projecting nipple 3. When the nozzle is removed the tap can be driven into the cask by striking the head 2 with a mallet without risk of hitting the short nipple 3. A strainer gauze 9 may be secured between the end of the nipple and a shoulder within the nozzle, as shown.
Patent GB-178757-A (GB)
Title: Improvements in and relating to reversible tapping chucks
IPC: B01D53/04
Filed: 1921-06-20
Abstract: 178,757. John, W. N. June 20, 1921. Attachments for tapping.-Reversible tapping chucks consist of a split casing 10, secured by a screw cap 12 and ring 17. An extension 13 on the cap receives the boss 14 of an internal gear 15, a shank 16 being screwed into the-boss. Shafts 23, mounted in the casing, carry pinions 25 engaging the gear 15, and pinions 22 engaging a gear 21 loosely mounted on a shaft 20, which has axial freedom of movement and carries a clutch 26. The upward or downward pressure of a tool secured to shaft 20 engages the clutch with either of the gears 15 or 21. An arm 27 prevents rotation of the casing.
Patent GB-145525-A (GB)
IPC: C08B3/06
Filed: 1920-06-22
Abstract: The acetylation of cellulose or its derivatives is carried out in two stages: in the first stage a catalyst other than sulphuric acid is employed, or several of such catalysts, either simultaneously or in succession, and in the final stage sulphuric acid is used in the catalyst.  Working in this way, complete solution of the cellulose is obtained, and the acetates can be separated from the solutions by dilution with or in the presence of acetone; the solubility of the acetates may be varied by subjecting them in the known way to a process of hydrolysis.  In examples, bromine and fused zine chloride are used as catalysts in the first stage, and acetylation is completed after the addition of sulphuric acid diluted or not with glacial acetic acid and with or without a further addition of acetic anhydride; in one example, a lower nitrated-cellulose described in Specification 10706/12 is the starting material.