baber/WOPTO huggingface dataset:
Patent GB-394076-A (GB)
Title: An improved shovel for separating coal, cinders and other substances from dust
IPC: F24B15/08
Filed: 1932-03-01
Abstract: 394,076. Shovels. HARVEY, W. E. J., 57, Alton Road, Bournbrook, Birmingham. March 1, 1932, No. 6130. [Class 6 (ii).] A separating or sifting shovel for domestic use comprises a floor 1, upstandings side walls 2, 3, and an upstanding back wall 4, all formed from sheet metal by a pressing process, the floor and one or more of the upstanding walls being provided or formed with slots 5. The shovel shown is made from a single sheet, the sides and end wall being joined together by welded overlapping ears 6. The walls may be vertical or inclined and the end wall 4 may be straight or curved in plan. The slots 5 may terminate in the end wall 4, and may be interrupted. Their ends may be square or rounded. The lower parts of the side walls 2, 3 may be slotted, and their front ends 12 may be bevelled or sloped. The bars between the slots may be rectangular and horizontal or inclined laterally ; or they may be of arc or inverted V-shape in cross section. The handle 7 may be formed of half-round metal and secured by riveting or welding ; or it may be of socket type or of wood fitting into a socket.
Patent GB-540140-A (GB)
Title: Improvements relating to the fuel supply of internal combustion engines using both gas and liquid fuel
IPC: F02M13/08
Filed: 1940-04-05
Abstract: 540,140. Spray carburetters. SENTINEL WAGGON WORKS (1936), Ltd., ALLEY, S. E., and RICHARDSON, L. S. April S, 1940, No. 6137. [Class 7 (iii)] In a carburetter adapted for running the engine on gas after starting with petrol, the gas is admitted through a side conduit 18 controlled by a throttler and opening into a chamber 10, to which air from the intake 13 of the petrol carburetter 11 is admitted past a controlling needle 41, the mixture passing to the engine by a conduit 25 with throttle 26. When running on gas is desired, the petrol tap is turned off and the throttle in the gas conduit 18 is opened. The air throttle 15 is locked in the fully-open position.
Patent GB-539500-A (GB)
Title: Improvements in or relating to bicycle hubs and method of making the same
IPC: B60B27/02
Filed: 1940-04-06
Abstract: 539,500. Making wheel hubs. SCHWINN, F. W. April 6, 1940, No. 6258. Convention date, Aug. 2, 1939. [Classes 83 (ii) and 83 (iv)] [Also in Group XXXIV] Welding ;joints.-A combined hub and brake drum for a bicycle wheel comprises a two part tubular hub one half of which is fitted into the hub-like portion of the drum with'the inner ends of the two parts in a common plane, and the drum and hub halves united in the common plane by welding or brazing. In a front wheel assembly, Fig. 1, a drawn sheet metal hub half 18, which is belled at 18a to receive the bearing cup 15, is pressed into the hub like portion 24 of the brake drum 21 with the inner ends of the parts in the plane 20. The other hub half 19, also of drawn sheet metal and belled at 19a, but of thickness and diameter equal to the portion 24, is provided with a tubular section 35 of the same thickness and diameter as the part 18. The stock is thus of equal thickness on opposite sides of the joint. The four parts are then united in a single operation by electric flash, spot or ordinary butt welding. The drum and hub part 19 are formed with the spoke flange 25, 26. The brake shoes 28 are pivoted at 29 in a plate 27 secured to the axle 11 and also to the frame. The joint between the parts 18, 35 may be in a different plane from that between the parts 24, 19, but both joints are effected at the same time. The parts 18, 35 may, if desired, be separately welded respectively to their parts 24, 19. In a back wheel assembly the hub part 19 is replaced by a machined part 36, Fig. 2, provided with spoke flange 37 and with screwed seats 38, 40 for the sprocket 39 and locking nut 41. A spacing tube 44 of thickness and diameter equal to that of the end of the part 36 and of the combined ends of parts 18, 24, is inserted between the parts and electric welding effected simultaneously at the planes 20, 45.
Patent GB-398416-A (GB)
Title: Improvements in crankshafts
IPC: F16C9/04
Filed: 1933-03-01
Abstract: 398,416. Crankshafts. BIRKIGT, M., Rue du Capitaine Guynemer, Bois- Colombes, Seine, France. :March- 1, 1933, No. 6271. Convention date, Nov. 26, 1932. [Class 80 (ii).] A balance weight a is secured to the web b of a crank shaft g by means of close-fitting interengaging castellations c, d, through which runs a piri e.
Patent GB-366310-A (GB)
Title: Improvements in or relating to pulleys
IPC: B66D3/06
Filed: 1931-02-28
Abstract: 366,310. Pulley-blocks. HALL, G. S. and HALL, R. G., 29, Rosedene Avenue, Streatham, London. Feb. 28, 1931, No. 6309. [Class 78 (v).] A block of the type in which surfaces of the block adjacent to a sheave form extensions of the side walls of the groove in the sheave and guide back to the groove the cord running therein after it has been displaced outwardly, comprises three sheaves 3, two reversely facing outside blockparts 5, 7, two pairs of reversely facing inside blocks part 9, 11, a spacing tube 17 within and longer than the boss of each sheave upon which tube the sheave can rotate freely, and a central bolt 13 which binds the whole into a single unit. A top bolt 15 carrying spacers 19 prevents the block parts from moving relatively about the pulley axis. Each part 5, 7 is formed with a circular recess 25 to receive a side of the adjacent sheave, and similar recesses are formed in the parts 9, 11. The recesses may be formed by riveting pieces of metal formed with a central aperture to the parts 5, 7, 9, 11.
Patent GB-802377-A (GB)
Title: Method and apparatus for electric arc welding
IPC: B23K9/10
Filed: 1956-02-29
Abstract: 802,377. Supplying welding arcs. AIR REDUCTION CO., Inc. Feb. 29, 1956 [March 16, 1955], No. 6368/56. Class 38 (4). A main welding circuit comprises a full-wave rectifier 16 and has preferably a high current output and a low open-circuit voltage. An auxiliary keep-alive circuit comprises a fullwave rectifier 26 and has an output which is out-of-phase with the output of the main circuit and is connected in parallel with the main circuit across the welding arc. The keepalive circuit may have a relatively low current output and a relatively high open-circuit voltage. The main and auxiliary circuits are energized from the same single-phase source, and as shown, are connected to separate secondary windings of a common transformer. A variable inductance is provided for current control in the main circuit, whilst a phaseshifting capacitor 27 and current limiting resistor 28 are connected in the auxiliary circuit. In a modification, the main and auxiliary circuits are energized through different transformers connected to the same single-phase source, Fig. 4 (not shown). The phase-shifting component for the keep-alive circuit is then located in the primary circuit of the associated transformer.
Patent GB-1212602-A (GB)
Title: Improvements relating to vitreous and vitro-crystalline materials
Inventor: TOUSSAINT FRANCOIS
IPC: C03C17/02
Filed: 1968-02-08
Abstract: 1,212,602. Strengthening glass, glass-ceramic and ceramic material. GLAVERBEL 8 Feb., 1968 [25 April, 1967; 27 April, 1967], No. 6389/68. Heading C1M. A layer of glass, glass-ceramic or ceramic material is mechanically strengthened by covering the layer either entirely or at zones which are laterally opposed with respect to a mid-surface of the base layer with molten or plastic glass which softens at a lower temperature and has a lower coefficient of thermal expansion than the base layer and subsequently cooling to solidify the coating(s) and to place the coating(s) under compression. The base layer may be a sheet or a hollow tube or other hollow-ware article. The edge faces of the sheet or the rim of a tumbler and the opposed surfaces adjacent the edge or rim may be coated in this way. The molten coating may be applied as such to the layer or it may be formed in situ on the layer. The coating may be a thin sheet bonded to the base layer under pressure. The compressive stresses in the vitreous coating can be increased by a chemical tempering process involving an alkali metal ionexchange between the coating and a contacting medium. In the examples, a base glass of the following percentage by weight composition 5i0 2 : 73-08; CaO: 10-33; Na 2 O: 15-84; AS 2 O 3 : 0-15; A1 2 0 3 +Fe 2 O 3 : 0-60 is coated with one of the following glass compositions: PbO: 74, 71-5  on 70-67; B 2 0 3 : 10, 13, 15-40; ZnO: 8, 9, 9-47; 5i0 2 : 2, 3, 2À08 ; BaO: 1, 0, 0; CuO: 1, 3, 1-88; Bi 2 O 3 : 2, 0, 0; Li 2 O: 2, 0-5, 0-5  respectively. A plate of glass-ceramic of the following composition: ZnO: 42; Al 2 O 3 : 20; 5i0 2 : 35; P 2 O 5 : 3 is similarly coated.
Patent GB-608824-A (GB)
Title: Improvements in counting mechanism
IPC: D03J1/20
Filed: 1946-03-01
Abstract: 608,824. Counting-apparatus. LANDIS & GYR SOC. ANON. March 1, 1946, No. 6477. Convention date, March 13, 1945. [Class 106 (i)] Two contiguous counters are driven alternatively from a common actuating means, the actuation being changed from one counter to the other by a push-rod connected to a spring- controlled toggle lever. The movement to be counted drives a pinion 33 which through a planet-wheel 37 and sun-wheels 36 actuates one or other of two sleeves 34, 35 geared to a lower counter 4 and an upper counter 3 respectively. Detents 30, 31 on a rock-shaft 29 engage either one or the other of a pair of detent wheels 39, one on each sleeve 34, 35, whereby one sleeve is held and the other free, and vice versa. To change the actuation from one counter to the other, the push-rod 9 is pressed upwards to rock an arm 7 to lift a link 12 having a projection 15 engaging a wedge-shaped part 21 of a toggle lever 16 secured to the rock.shaft 29 and controlled as a toggle by a spring 17 to engage one or other of two stops 19, 20. At each operation of the push-rod the projection 15 co-operates with the wedge 21 in such a way that the toggle lever 16 is always moved from one position to another. The toggle lever also operates a disc 27 which indicates which counter is operative.
Patent GB-1519575-A (GB)
Title: Method and apparatus for gravel packing wells
IPC: E21B43/04
Filed: 1977-02-16
Abstract: 1519575 Wells &c EXXON PRODUCTION RESEARCH CO 16 Feb 1977 [26 Feb 1976] 06477/77 Heading E1F In a method of gravel packing the annulus 10 between a perforated liner 20 and a casing 12 or open wellbore wherein a carrier liquid having gravel suspended therein is flowed downwardly along the outside of the liner 20 and upwardly through a stinger 24 which extends through the entire length of the liner 20, the packing efficiency is increased by adjusting the clearance between the stinger 24 and liner 20 such that the resistance to flow in the annular passage 21 between the stinger 24 and liner 20 is sufficient to maintain at least the minimum flow velocity of the carrier liquid along the outside of the liner 20 necessary to prevent premature settling of the gravel and formation of gravel dunes near the upper portions of the liner. As described the passage 21 is restricted by using an over size stinger 24 or a conventional stinger having a sleeve (not shown) on its outer surface.
Patent GB-962724-A (GB)
Title: Improvements in or relating to methods of and apparatus for moulding synthetic thermoplastic material
IPC: B29C33/02
Filed: 1961-02-22
Abstract: 962,724. Moulding electric cable joints. I. A. THOMPSON, R. F. THOMPSON, and A. C. E. BREACH, [trading as EGERTON ENGINEERING CO.]. May 22, 1962 [Feb. 22, 1961], No. 6562/61. Heading B5A. In a method of moulding synthetic thermoplastic material, such as joining the ends of two electric cables 25, the ends of the two cables 25 are placed in a shaped mould 2 comprising two semicircular mould halves which are secured together and are then placed between and are in contact with two complementary shaped electrically heated platens 1 which enclose the mould 2 in a housing defined by the inner surfaces of the said heated platens 1. The thermoplastic material is then injected into the mould cavity, the platens 1 being heated at a controlled temperature and for a controlled time to fuse the thermoplastic material, or render it mouldable. The halves of the mould 2 are adapted to be clipped together by split rings 4. The thermoplastic material, e.g. a P.V.C. compound paste, is injected into the mould through a filling nipple by means of a grease gun type of appliance. The apparatus can be adapted to take moulding jackets for making " T " or " Y " joints.
Patent GB-1109014-A (GB)
Title: Pneumatic tape drive systems
IPC: G11B15/58
Filed: 1966-02-15
Abstract: 1,109,014. Feeding record tapes. AMPEX CORPORATION. 15 Feb., 1966 [24 Feb., 1965], No. 6650/66. Heading G5R. [Also in Division G3] In a capstanless drive system, a tape 12 is moved in either direction past recording head 18 between reels 14, 16, which are associated with differential pressure columns 24, 26, having loop-position sensing devices 36 controlling reel servos 20, 22. Grooves 42 each provide a pneumatic by-pass of varying area which tends to equalize the loops during steady state operation. Timing signals are reproduced from the tape and compared with a fixed frequency signal in discriminator 44 whose output controls valve 32 determining the differential pressure variations between columns 24, 26, needed to produce the desired tape movement. When switch 50 is moved to the " forward " position, the tape is initially accelerated to shorten the loop in column 24 and lengthen that in column 26, the changes in loop-lengths then being sensed by devices 36 to actuate servos 20, 22, for returning the loops in the columns towards the desired nominal lengths. The increased tape speed reduces the speederror signal from the discriminator 44, the valve 32 being positioned to reduce gradually the differential pressure toward the level needed to maintain the desired tape-speed. Similar operation is obtained when the switch 50 is moved to the " reverse " position. The loop-position sensing device may comprise a light source 37 and photo-electric senser 36 including a photoconductor exposed to variable amounts of illumination in accordance with the position of the loop. In another arrangement, a second larger pair of vacuum chambers provide tape storage capacity between the associated smaller columns and the reels. Loop-position sensing devices on the smaller columns deliver signals to valve servos adjusting the pressures in the larger chambers so as to move the tape to maintain the smaller loops at the desired position. The larger columns also contain loopposition sensers the output signals of which actuate the reel servos. Flutter may be corrected by supplying the speed-error signal to coils at the bottom of the smaller columns for actuating diaphragms which produce instantaneous volume and pressure variations to reduce the rate of change of speed without interfering with normal operation. The diaphragm may control the size of a passage between the bottom of the tape and a vacuum pump. For incremental movement of the tape, the forward or reverse command signal takes the form of short duration voltage pulses shaped to provide the desired acceleration. Each of the smaller vacuum chambers has a pneumatic brake with a coil controlling a diaphragm to create a partial vacuum and draw the tape against a sidewall surface when the coil receives a braking signal. The latter is derived from the trailing edge of the command signal by a high pass filter which differentiates the command signal, the pulse of proper polarity being selected by a diode circuit.
Patent GB-142247-A (GB)
Title: Improved drain cock
IPC: F16K5/04
Filed: 1919-03-17
Abstract: 142,247. Meter, J. N. van. March 17, 1919. Rotary cylindrical valves.-A drain-cock for liquid-retainers, such as automobile radiators, comprises a cylindrical casing 5 secured in the bottom of the container, and an inner cylindrical tubular plug 15, both formed with apertures near the bottom of the vessel and secured together by a screw 10, as shown. The inner tube is formed with an enlarged head 8 held up against the bottom of the vessel by the screw 10. The lower end of the tube 15 is also fitted with an operating-handle 18.
Patent GB-386471-A (GB)
Title: Apparatus for preventing damage by electric earth currents and earth radiations
IPC: H05K9/00
Filed: 1932-03-05
Abstract: 386,471. Protective arrangements. POHL, GUSTAV, FREIHERR VON, 9B, Schleissheimerstrasse, Dachau, Bavaria, Germany. March 5, 1932, No. 6706. Convention date, March 5, 1931. Addition to 338,268, [Class 38 (iv), Electric supply and transmission systems &c.]. Drawings to Specification. [Class 38 (iv).] A dwelling, electric cable system, or cultivated ground is protected from negatively electric terrestial radiations by two or more screens according to the parent Specification. The screens may be one above another or side by side. Above the arrangement of screens or on its outermost surfaces may be a sheet, e.g. of lead, impervious to the rays. The screens are electrically connected to each other and to a remote conductor above ground. Laterally of the gaps between the screens pieces of metal or magnets may be placed. The screens may be placed in a cellar or on the floor of a building having several floors.
Patent GB-354741-A (GB)
IPC: B30B1/18
Filed: 1930-03-01
Abstract: 354,741. Hydraulic presses. FRIZ, A., 30, Haldenstrasse Cannstatt, Stuttgart, Germany. March 1, 1930, No. 6818. Convention date, March 1, 1929. [Class 69 (ii).] A combined hydraulic and mechanical press, in which the press platen is rapidly advanced into contact with the work by mechanical means and is thereafter subjected to hydraulic pressure to complete the pressing operation, comprises a movable platen 18 carrying an electric motor 22 and a shaft 21 which drives nuts 19 mounted on threaded spindles 14. The spindles 14 are normally supported by step bearings 24, but when the platen has been lowered by the motor 22 till the platen rests on the work carried by the fixed platen 5, the continued operation of the motor raises the spindles 14 to a predetermined height controlled by a motor cut-out mechanism actuated by one of the spindles 14. The spindles 14 are provided at their upper ends with rams working within hydraulic cylinders to which pressure fluid is supplied by way of a three-way cock 31, and pump 28. The screw and nut gear for actuating the spindles 14 may be replaced by rack and pinion mechanism.
Patent GB-1252660-A (GB)
Title: Production of homogeneous ion exchanger membranes
IPC: C08J5/22
Filed: 1969-02-07
Abstract: 1,252,660. Ion exchange membranes. SIEMENS-A.G. 7 Feb., 1969 [8 Feb., 1968], No. 6886/69. Heading B1X. [Also in Divisions C3 and H1] Ion-exchanger membranes suitable for use in dialysis osmosis and reverse osmosis are prepared from a linear, non-cross linked copolymer capable of gel formation and containing ion exchange-active and hydrophobic groups, the copolymer being derived from at least one (meth) acrylate ester and, as ionexchange active monomer, either (i) acrylic, methacrylic and/or itaconic acid or (ii) vinyl pyridine, N-vinyl-pyrrolidone and/or an amino ester of methacrylic acid, the monomers (i) and (ii) not being employed together (see Group C3). To improve the mechanical stability of the membranes, the copolymer solution may be solidified within metallic or non- metallic grids, woven fabrics, paper or bonded unwoven fibre structures. To render the surface of the membranes wettable, they can be flushed with an aqueous solution of a copolymer (different from that specified above) containing hydrophilic groups.
Patent GB-697250-A (GB)
Title: Improvements in and relating to multi-cavity moulds
Inventor: MILLS JOSEPH ALEXANDER WALLACE
IPC: B29C45/32
Filed: 1951-03-22
Abstract: 697,250. Moulding sealing rings &c. DOWTY SEALS, Ltd. March 11, 1952 [March 22, 1951], No. 6957/51. Class 87 (ii) A multi-cavity mould for use in the production of sealing rings or like ring-shaped members comprises a number of shaped annuli 12 arranged co-axially as a stack, the annuli being shaped on their adjacent faces to define the mould cavities and, for each such cavity, an annular entry throat 19 from the central space within the stack, enabling mouldable material to be passed from said central space through the several annular throats into the corresponding mould cavities. The annuli are stacked in a cylinder 13 and clamped by a hollow plug 14 which screws into one end. The other end of the cylinder is supported against a block 23 by pivoted arms 24 which engage a pair of grooves 22 in the cylinder wall. A charging cylinder 26 is slidable on guide rods 31 and has a nozzle 33 engageable with the plug 14 and strip heaters 34 outside it. Uncured rubber mix 25 is forced from the cylinder 26 into the space 21 by a piston 27 until it issues from a vent hole 35 in the block 23, when the piston 27 is reversed in direction and the cylinder 26 is moved away from the plug 14 by springs 32 until the column of rubber mix is severed. The mould body 13 is then supported against a block 36 by pivoted arms 37 which engage the grooves 22 and a mandrel 41 is forced into the space 21, so forcing the rubber mix therein through the annular throats 19 into the mould cavities 15 and forcing superfluous mix through a hole 43 in the block 36. The mould body is then placed in an oven and the rubber is vulcanized. For making rings in which resilient material is held in confining rings, the metal confining rings 10 are placed alternately between the annuli 12, Fig. 3, and coated with bonding agent which unites,the rubber to the metal under the heat of vulcanization. The mould body is then placed in a press, in which it is held as before by arms engaging grooves in the cylinder wall, and the mandrel is forced out by a rod of smaller diameter subjected to ram pressure. The plug 14 is then removed and the mould body is inverted, Fig. 5, and the rod 45, acting through a backing ring 48, ejects the stack of annuli, from which the moulded rings are separated and any flash removed. Specification 576,233, [Group XXVI], is referred to.
Patent GB-1148276-A (GB)
Title: Improvements in passive circuit elements
IPC: H01L29/24
Filed: 1968-02-13
Abstract: 1,148,276. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORP. 13 Feb., 1968 [20 Feb., 1967], No. 6959/68. Heading H1K. A semi-conductor device comprises a layer 12 of silicon carbide having composite contacts 24, 26, each comprising on a layer of silicon dioxide 22, a solid solution layer 28, 30 made up of a first metal from the group of titanium, vanadium, tantalum, manganese, thorium, zirconium and niobium, an oxide of this metal and silicon, a layer 32, 34 of the first metal over the solid solution layer and a further layer 36, 38 of a second metal such as platinum, silver, nickel, gold, rhodium, palladium or copper. The silicon dioxide layer between the contact and the silicon carbide layer is so thin as not to prevent the formation of a low resistance electrical contact to the silicon carbide. The silicon carbide layer forms a passive component such as a resistance in an integrated circuit, and is disposed on a semi-conductor silicon body 10 which contains PN junctions 20 forming part of active components of the same circuit. In a further embodiment, Fig. 6, not shown, the silicon carbide layer is insulated from the semi-conductor body on which it is disposed by a layer (60) of silicon dioxide.
Patent GB-1374029-A (GB)
Title: Stabilized commercial sodium dithionite compositions and method of obtaining same
IPC: C01B17/66
Filed: 1972-02-16
Abstract: 1374029 Sodium dithionite compositions BADISCHE ANILIN-& SODA-FABRIK AG 16 Feb 1972 [19 Feb 1971] 7122/72. Heading DIP [Also in Division C1] A bleaching composition which is stable against spontaneous ignition, comprises 60- 95% commercial sodium dithionite, 2.5-37.5% calcined soda and 2.5-37.5 sodium diethylenetriaminopenta acetate, by weight of the total composition. The composition may further contain sodium polyacrylate and/or urea. The compositions are suitable for bleaching groundwood.