baber/WOPTO huggingface dataset:
Patent GB-731222-A (GB)
Title: Improvements in pistons for internal combustion engines
IPC: F02F3/00
Filed: 1953-07-21
Abstract: 731,222. Pistons. HUMBER, Ltd., and VIGERS, R. W. July 21, 1953, No. 20189/53. Class 122 (1). A piston, for an internal-combustion engine, in which the crown 3 is secure.d'to the body 1 of the piston by a stud 6 on the rear-face of the crown and passing through the head of the body to be engaged by a nut 12 within the. body, has a resilient washer 14 of the Belleville type clamped between the nut and the head of the piston body. A bearing plate 7 of heatresistant hard metal such as cast iron may be interposed between a crown 3 of heat-resistant steel (e.g. machined from a drop-forging of K.E. 965 austenitic steel) and a body 1 of aluminium alloy, cast iron or other metal and may be arranged so that the area of contact between the crown and the plate is restricted to two, three or more annular rings 8, 9 concentric with the stud 6 or a spigot 4 integral with the stud. As shown, the rings 8, 9 are formed on the crown and the ring 9 is preferably thinner than the other so that it seats only under pressure of the nut, the rings 8, 9 making gas-tight seals on the plate 7. The nut 12 has an integral flange 13 of larger diameter than that of the opening 5 in the body 1, and the piston is intended for use in the opposed-piston'engine described in Specification 648,117.
Patent GB-1171623-A (GB)
Title: Improvements in or relating to Electrical Connectors for Planar Contact Carrying Members
Inventor: ROBB ANDREW CRAWFORD
IPC: H01R12/72
Filed: 1966-05-06
Abstract: 1,171,623. Edge connectors for printed circuit boards. BELLING & LEE Ltd. 5 May, 1967 [6 May, 1966], No. 20250/66. Heading H2E. In an edge connector with contact-housing recesses 12, 13 which communicate with a central panel-receiving channel 11 through narrow slots (16, Fig. 2, not shown), each contact includes two limbs 2, 4, the inner limb 4 having a part 6 projecting into the central channel 11 through a slot (16) and having shoulders 5 which engage shoulders 15 in a recess 12 or 13. The contacts each comprise either one pair of limbs 2, 4, or, as shown, two opposed pairs of limbs 2, 4 joined by a strip 7. They are formed from blanks (Fig. 3, not shown) by folding the limbs 2, 4 at right-angles to the strips 7 and to end portions 3, 3a. Springy shoulders 2] on solder tags 1 retain the contacts.
Patent GB-705372-A (GB)
Title: Power assisted manually operated steering mechanism
Inventor: HAMMOND CHARLES FREDERICK
IPC: B62D5/06
Filed: 1950-08-15
Abstract: 705,372. Fluid-pressure servomotor-control systems. GEMMER MANUFACTURING CO. Aug. 15 1950, No. 20275/50. Class 135 Power assisted steering gear for vehicles comprises a shaft L, Fig. 4, turnable by a steering wheel A, Fig. 1, and driving, through gears N, N', a shaft M carrying a worm D, Fig. 11, meshing with a worm-wheel D' connected by arm Y to a shaft E, Fig. 6, carrying a drop arm F attached to the steerable wheels. The shaft L is supported by a bearing O capable of slight lateral movement under the torque reaction of the gears when the wheel A is turned, to operate piston valves Q, Fig. 10, controlling a piston power device J which rotates the shaft E. When the valves are in neutral position, pressure fluid supplied at R leaks continuously to exhaust S, and movement of the bearing O in either direction enlarges one leak and cuts off the other whereby the power device J moves in the appropriate direction. The power device comprises pistons J<SP>1</SP>, J<SP>2</SP> interconnected by a member J3 and having abutments K2, K3 respectively, engaging a roller K<SP>1</SP> on an arm K fixed to the shaft E. The bearing O is supported by a screw P to prevent disengagement of the gears. The valves are urged to neutral position by springs Q3 and inlet pressure in chambers 14 and thus the power device will not be energized to assist manual operation of the steerable wheels until the torque reaction at the gears N, N<SP>1</SP> is sufficient to displace the valves. On movement of the valves, e.g. to the left as shown in Fig. 10, the pressure builds up in the left-hand chamber 14 to provide feel at the steering wheel. If the power supply fails, steering may be effected manually, there being slight lost-motion caused by movement of either valve to its extreme position. In a modification, the valves are actuated by a lever V. Fig. 11, carrying the bearing O and pivoted to a part V<SP>1</SP> adjustable in the housing port C<SP>2</SP>.
Patent GB-676587-A (GB)
Title: Pulse-echo type radar systems
IPC: G01S7/282
Filed: 1950-08-17
Abstract: 676,587. Radiolocation. PHILCO CORPORATION. Aug. 17, 1950 [Aug. 31, 1949], No. 20418/50. Drawings to Specification. Class 40 (vii). In a pulse radar having separate transmitting and receiving aerials in which unwanted coupling exists between the transmitter and some portion of the receiver so that each transmitted pulse causes a transient interference signal in the receiver, a delay device is inserted in the normal signal transmission path from the transmitter output to the receiver output at a point prior to said receiver portion to prevent short range echoes from being masked by the interference signal. The delay device, e.g. a length of wave-guide, may be inserted between the transmitter and its aerial, Fig. 1 (not shown), or between the receiver and its aerial, Fig. 4 (not shown). If the unwanted coupling is between the transmitter and the video stage of the receiver, a video delay device, e.g. lumped line or multivibrator, may be inserted between the second detector and the video stage, Fig. 5 (not shown). When a cathode-ray tube, e.g. P.P.I., display is employed the time-base trigger is preferably delayed by a corresponding amount to prevent display of the interference signal.
Patent GB-1383165-A (GB)
Title: Manufacturing semiconductor devices
IPC: H01L21/223
Filed: 1973-04-30
Abstract: 1383165 Making semi-conductor devices MITSUBISHI DENKI KK 30 April 1973 [28 April 1972] 20482/73 Heading HIK During one or more processing steps semiconductor wafers under treatment remain attached to a parent semi-conductor body. The wafers are separated only at the stage when individual treatment is necessary to continue manufacture. The Figure shows a cylindrical rod of monoerystalline silicon in which wafers 22 have been defined by saw cuts 18 (or other slits) extending nearly through the rod. The end portions 24 are made more substantial and are used as handling bodies and may have apertures 16 to receive the chucks of an etching or cleaning apparatus &c. The wafers 18 in a set need not all have the same thickness. The spine 20 of the rod may be provided with a plane surface so that the wafer set does not roll. Lot identification numbers (not shown) may be marked on the end faces of the handling bodies 24. In alternative arrangements (Figs. 5 and 6, not shown) the wafers may lie parallel to a plane at an angle to that shown or may be defined by slots parallel to the plane containing the axis of the rod. The united wafers may be subjected to cleaning, etching, impurity diffusion, or semiconductor growth from the liquid phase. When making power diodes or thyristors it may not be necessary to etch away the damaged surface produced by a sawing operation. The wafers may be separated from the spine by cleavage along chosen crystal planes.
Patent GB-1145979-A (GB)
Title: Photographic materials comprising a layer containing a water-insoluble polymer
IPC: G03C8/02
Filed: 1966-05-09
Abstract: 1,145,979. Sulpho-(meth )acrylate copolymers. EASTMAN KODAK CO. 9 May, 1966 [10 May, 1965], No. 20492/66. Heading.C3P. [Also in Division G2] Copolymers used in photographic applications (see Division G2) are prepared by polymerizing the following monomers in aqueous emulsion containing a sodium alkylaryl polyether sulphate surfactant and in the presence of a potassium persulphate/sodium bisulphite initiator, viz. (a) methyl, ethyl or n-butyl acrylate or methyl methacrylate, (b) sodium 4-acryloyloxybutane- 2-sulphonate, sodium 3-acryloyloxypropane - 1- sulphonate or sodium 3 - methacryloyloxypropane - 1 - sulphonate and, optionally, (c) acrylic acid, glycidyl methacrylate or acrylonitrile.
Patent GB-1285011-A (GB)
Title: Improvements in or relating to the purification of flue gases
IPC: B01D47/06
Filed: 1971-04-19
Abstract: 1285011 Removing tar from hot flue gases SIGRI ELEKTROGRAPHIT GmbH 19 April 1971 [21 Feb 1970] 20505/71 Heading B1R In a process for removing tar from hot tarcontaining flue gases by passage through an electrostatic precipitator the flue gases are first sprayed with hot water to liquefy the tar. The temperature of the hot water is between 95‹ and 99‹C and it is sprayed at a pressure of 20 atmospheres.
Patent GB-1198082-A (GB)
Title: Process of preparing Polyamides
Inventor: KWOLEK STEPHANIE LOUISE
IPC: C08G69/36
Filed: 1967-06-13
Abstract: 1,198,082. p-Benzamide polymers. E. I. DU PONT DE NEMOURS & CO. 13 June, 1967 [13 June, 1966], No. 20698/69. Divided out of 1,198,091. Heading C3R. Processes for the preparation of homo- or copolyamides containing at least 80 mol. per cent p-benzamide units by the anhydrous polymerization at below 60‹ C. of a p-aminobenzoyl halide salt X 1 - H 3 N<SP>+</SP>-C 6 H 4 -CO.X 2 , where X 1  is an aryl or alkyl sulphonate, acid sulphate or Ha radical and X 2  is Ha, are effected in a solvent for the monomer(s). The process of Specification 1,008,854 is acknowledged. The remaining 20 mol. per cent of units in the copolymers may be provided by a similar salt of an aromatic aminocarboxylic acid or monomers providing equimolar amounts of diamine or tetramine and dicarboxylic or disulphonic acid residues. Numerous monomers and combinations of comonomers are specified. Specified solvents in which the reaction may be effected are tetramethyl urea; hexamethyl phosphoramide; N,N-dimethyl acetamide; N-methyl, -ethyl or - acetyl pyrrolidone; N-methylpiperidone; N,N- dimethyl ethylene urea; N,N,N<SP>1</SP>,N<SP>1</SP> - tetramethylmalonamide; N-methyl caprolactam; N,N-diethyl acetamide; and N,N<SP>1</SP>-dimethyl propion-, butyr- and isobutyr-amides. The use of such solvents as dispersion media for the reaction is stated to lead to products having advantageous properties for fibre formation, products having such properties being claimed per se in Specifications 1,198,081 and 1,198,093. Chain stoppers and lithium chloride, acetate, hydroxide, carbonate or oxide may be present in the reaction system. Specification 901,159 is also referred to.
Patent GB-222276-A (GB)
Title: Improvements in stands for supporting or displaying articles
IPC: G10K11/00
Filed: 1923-08-15
Abstract: 222,276. York, A. G. Aug. 15, 1923. Rack stands; flower stands.-A stand for displaying cakes &c. comprises an open frame a, a horizontal cross-bar e pivotally mounted between the upright frame members a, b and provided with two or more pivoted arms i, j carrying at their extremities trays &c. i<1> for supporting dishes, means being provided to automatically lock the cross-bar e in either of the positions shown in Figs. 1 and 4, in which latter position the arms may be rotated in opposite directions as shown in Fig. 13. A tray i<2> may be provided at the centre of the uppermost arm i, the end trays &c. i<1> of which may be aperatured to permit the lower part of tumblers &c. to be passed therethrough and to rest upon the trays &c. i<1> on the arm below. When used as a flower stand the frame uprights may be shortened and the top cross-rail c omitted or replaced by a horizontal circular frame. A hinged or fixed shelf may be fitted between the lower parts of the upright frame members a, b.
Patent GB-1505276-A (GB)
Title: Aerial platform having boom mounted pipe holder
IPC: B66F11/04
Filed: 1975-05-16
Abstract: 1505276 Combined workman's platform and gripper FULTON INDUSTRIES Inc 16 May 1975 [14 June 1974] 20767/75 Heading B8H Mobile luffing arm apparatus for positioning a workman and a load, such as a pipe P, in an elevated position, comprises a mobile chassis (10), Fig. 1 (not shown) with a telescopic boom (14) luffably mounted thereon and a platform 25 and a pair of grippers 60 independently mounted on a support column 30 pivotally mounted about a horizontal axis to the free end of the boom. The support column has a sleeve 31 with hooks 32 and a support 35 to mount the platform and bearing blocks 43, 44 to pivotally mount a shaft 51. An hydraulic actuator 57 is coupled between the shaft and the sleeve to effect rotation of the shaft and arms 52, 53 are telescopically mounted in respective ends of the shaft. The arms may be telescopic, Fig. 4 (not shown) and mount the grippers 60 at their free end for actuation by hydraulic actuators 65. The platform 25 is maintained level whilst the boom is luffed by a slave cylinder 18 connected to a master cylinder (17) and acting on the support 30.
Patent GB-401819-A (GB)
Title: Improvements in or relating to portable electric searchlight apparatus
IPC: F21L14/00
Filed: 1932-07-23
Abstract: 401,819. Portable electric lamps. RICHARDS, R. S., 982, Alum Rock Road, Birmingham. July 23, 1932, No. 20772. [Class 75 (iii).] A hand lamp fitted with a bi-filament bulb a is connected by flexible leads with a battery in a container f carried by a shoulder strap e, which also supports the inner end of the leads and carries the switches b<5>, b<6> controlling the filaments. The strap may be fitted with flaps secured by press-buttons &c. for protecting the switch terminals and exposed parts of the leads. The reflector c is adjustable along the shank c<2> on the handle c<1>. The lamp is accommodated in a pouch g when not in use.
Patent GB-256786-A (GB)
Title: Improvements in or relating to the propagation of wireless waves
IPC: H01Q21/12
Filed: 1925-08-19
Abstract: 256,786. Galletti, R. C. Aug. 19, 1925. Aerials; directive signalling. -Electromagnetic waves are concentrated along a ray or beam by completely surrounding the radiating oscillator by a number of wires c arranged along the surface of an imaginary body of elliptical crosssection, the radiating oscillator lying in a focal line b<1> of the ellipse. The wires c may be parallel to one another or may lie along the surface of an imaginary conical body. To obtain radiation in one direction only the wires may be earthed and a reflector may be employed spaced a “ wavelength from the earthed end. A second radiating oscillator may be placed in the other focal line b<2> and energized 180‹ out of phase with the first oscillator. The major axis d of the ellipse is preferably made equal to a ¢ wavelength or a multiple thereof and the natural frequency of each of the wires c is preferably made equal to a ¢ wavelength, or in the case where one end is earthed equal to a “ wavelength or a multiple thereof in either case.
Patent GB-219822-A (GB)
Title: Improvements in or relating to universal couplings
IPC: F16D3/78
Filed: 1923-08-17
Abstract: 219,822. Alpe Patent Coupling, Ltd., and Alpe, R. J. Aug. 17, 1923. Universal joints.-Metallic stiffening-plates a adapted to be riveted around the boltholes of a flexible coupling disc or annulus of non- metallic material, such as vulcanized fibre or rubber, have their radial edges a<1> outwardly curved from the face of the disc &c. in order to avoid sharp contact therewith, the curvature being produced by pressing outwardly concave grooves a<4> near the edges of the plates. The corresponding ribs serve to grip the internal cord or fabric reinforcement of the disc &c. The concentric edges a<2>, a<3> may be furnished with similar grooves a<5>.
Patent GB-596360-A (GB)
Title: Improvements in and relating to the starting control for electric discharge devices
IPC: H05B41/10
Filed: 1943-12-16
Abstract: 596,360. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 16, 1943, No. 21136. Convention date, Dec. 17, 1942. [Class 39 (i)] [Also in Group XXXV] The starting of a discharge device having a thermionic cathode is controlled by electron emission. Fig. 1 shows a lamp L having an internal fluorescent coating and containing low-pressure gas, e.g. argon, together with a working substance such as mercury. A starting and heating circuit H may be connected across the power supply P through the activated filamentary cathodes 11, 11 and have included therein a starting relay s having an operating coil 19 connected in a control circuit 20. This circuit 20 connects a variable tap 28 on a starting and ballast inductance 14 through the winding 19 to a spring contact 26 engaging a metal band 25 on the lamp base, the band being in turn connected to an auxiliary anode 22 consisting of a straight length of wire, e.g. nickel. The auxiliary anode, which may be of T-shape, 22a, Fig. 2, is sealed through the cathode mount 23. Said anodes are placed at both ends of the lamp to ensure operation of the starting circuit regardless of which way the lamp is placed in its holder. When starting, current flows through the circuit H until the cathodes 11, 11 have preheated to a temperature sufficient to cause adequate emission between the electrodes 11, 22 to permit a discharge current to flow in the circuit 20 which will operate the switch S and initiate the main discharge. In a modification, Fig. 7 (not shown), an auxiliary cathode, the exact counterpart with regard to heating and time, characteristics of the cathodes 11, 11, is placed together with an auxiliary anode of base refractory metal wire in a separate envelope so that uneven wear of the cathodes 11, 11 is avoided.
Patent GB-359520-A (GB)
Title: Device for sharpening safety razor blades
IPC: B24D15/08
Filed: 1930-07-14
Abstract: 359,520. Grinding. TOMLINSON, C., 6, Lonsdale Terrace, and WALKER, W. W., 30, Gillespie Crescent, both in Edinburgh. July 14, 1930, No. 21213. [Class 60.] Strops.-A device for sharpening safety razor blades consists of a piece of glass or glass-like material having a concave surface over which the blade is moved to sharpen it. The glass may be in the form shown in Fig. 2, with a concave surface B, in the form shown in Fig. 4, or may have two opposed concave surfaces, or two pairs of opposed concave surfaces on a block of approximately square cross section. A handle for the device may be provided, or a portion of the device may be roughened or serrated to form a grip. Reference has been directed by the Comptroller to Specifications 325,672 and 338,346, [both in Class 60, Grinding or abrading &c.].
Patent GB-610526-A (GB)
Title: Microfilming equipment and film processors
IPC: G03D3/13
Filed: 1945-08-20
Abstract: 610,526. Coating webs. TRIGGS, W. W. (Diebold, Inc.). Aug. 20, 1945, No. 21233. [Class 140] [Also in Group XX] An apparatus described as for processing strip photographic film comprises a receptacle or receptacles for processing fluid and a fixed guiding means of C-shaped cross section through which the film is adapted to be continuously moved, which guiding means extends into and out of the receptacle or receptacles in spaced apart relation to the walls thereof. As shown, the film 29 proceeds via slot 61 through guiding means 22 which is disposed in the several loops 24, 25, 26 dipping into receptacles 18, 19, 20. The guiding means may be composed of cellulosic plastic material and may have the cross section shown in Fig. 3. The film is urged by driven rollers 35, 35a, 35b in co-operation with idling rollers 36, 37; the guiding means being slotted where required to accommodate these rollers. The receptacles may be lowered, while leaving the guiding means in fixed position, to facilitate cleaning &c.
Patent GB-214897-A (GB)
Title: Garment fastener
IPC: A44C5/20
Filed: 1923-08-22
Abstract: 214,897. Nowak, R. A. Aug. 22, 1923. Catches, spring.-A garment fastener comprises a U-shaped member 1 attached to one edge by sewing through holes 4 in one leg 3 and having a T-shaped slot 9 at its bend to receive a V-shaped spring element 21 on a member 2 sewn to the other edge. The V-shaped spring is formed by bending an extension 18 on itself and it is provided with an operating extension 22 bent at right-angles to the plane of the fastener and provided with a button 24. The extension 22 forms shoulders 23 which engage behind the narrow portion of the slot 9. The second leg 13 of the member 1 has inwardly curved projections to protect garments lying beneath.
Patent GB-1078784-A (GB)
Title: Improvements in or relating to clamps for building scaffolds
IPC: E04G7/18
Filed: 1965-05-20
Abstract: 1,078,784. Clamps; stud and socket fastenings. R. FRITZEN WALLNER. May 20, 1965 [May 21, 1964], No. 21430/65. Heading E2B. [Also in Division F2]  In a clamp for a building scaffold the jaws of the clamp are formed by the head 4 of a clamping bolt 3, and an end of an abutment member 7, a wedge 12 being provided for positioning between the bolt and the abutment member, and one face of the clamping bolt and one face of the wedge each being formed with a plurality of saw-toothed shaped notches 14, 16 respectively, for interengagement with each other, the arrangement being such that in use of the clamp the notches engage with each other and another face of the wedge bears against a surface of the abutment member. As described the member 7 comprises a base plate 8 and a hallow square cross section sleeve 7a. The axes of the notches 14 are inclined at from 72‹ - 80‹ to the longitudinal axis of the bolt. In use the bolt is inserted through aligned apertures 2, 6 in members 1, 5 respectively so that its head 4 engages the member 1, the member 7 is position with the bolt shank within the sleeve 7a, and passing through a hole 7b in the plate 8, and the wedge 12 is inserted via apertures 9 in the sleeve 7a so that the notches 14, 16 interengage, and is driven to clamp the members 1, 5.
Patent GB-1467116-A (GB)
Title: Rotary self-clearing window
IPC: H05B3/28
Filed: 1975-05-20
Abstract: 1467116 Clear-view windows GLAS-UND SPIEGELMANUFAKTUR N KINON GmbH 20 May 1975 [24 June 1974] 21442/75 Heading A4F A rotary self clearing window comprises a rotary glass disc 3 mounted adjacent a fixed glass sheet 2 and on the shaft of a motor 14 carried by the sheet 2, and electrical resistance heating elements 9 arranged at one surface or within the sheet 2 and  both within and outside the area covered by the rotary disc 3, for preventing ice formation in the space between the members 2, 3 and on the outer surface of the glass sheet 2 surrounding the disc 3. The illustrated sheet 2 comprises an inner glass sheet 4 secured by thermoplastic layers 7, 8 to outer and inner glass covering sheets 5, 6. The electrical heating elements 9 are arranged in the layer 7 and further electrical heating elements 15 of lesser power are provided in the layer 8 for preventing misting of the inner window surface. At the periphery of the disc 3 a labyrinth seal 30, 31 is provided between the disc 3 and the covering sheet 5.
Patent GB-276026-A (GB)
Title: Combined combustion oil and working oil pump for injection internal combustion engines
IPC: F02M43/02
Filed: 1927-08-15
Abstract: 276,026. Motorenfabrik Deutz Akt.- Ges. Aug. 16, 1927, [Convention date]. Tappet actuated pumps: stroke, varying; multiple-delivery piston pumps; regulating delivery by by-passes or return circuits.-The supplies of ignition oil and main oil to an injection internal-combustion engine are effected by plungers a, b, the plunger b being actuated by the plunger a at a certain point of its stroke. After this point the delivery of ignition oil ceases owing to the equality of the plunger areas. The area of the plunger a may be larger. in which case the supply of ignition fuel diminishes but does not cease. The supply of main fuel may be regulated by a piston m at a variable point in the stroke. The separation of the pistons may be lessened or eliminated to reduce or eliminate the supply of ignition oil e.g. by employment of engaging helicoidal surfaces on the ends of the pistons or on a pair of plates supporting the piston b at its upper end.