baber/WOPTO huggingface dataset:
Patent GB-1155740-A (GB)
Title: Hydraulic Slide-Valve
IPC: F16K11/07
Filed: 1966-12-30
Abstract: 1,155,740. Valves. ZAVODY PRUMYSLOVE ACTOMATISACE - JINONICE, NARODNI PODNIK. 30 Dec., 1966 [30 Dec., 1965], No. 58320/66. Heading F2V. The body 4 of a spool valve encloses a plurality of housings 5, 6 and 7 which are separated from one another by means of a plurality of circumferentially arranged spacers each consisting of a ring 16 mounted on a pin 17. Each housing has formed therein an annular groove e.g. 14a, which communicates with a corresponding annular space, defined between the housing, the spool and two adjacent lands, by by means of a plurality of arcuate apertures 18, Fig. 2 (not shown), which apertures are separated by radially extending ribs (15, Fig. 2), formed integrally with the housing. Upon movement of the spool, fluid supplied under pressure to inlet 11 is directed to either one of two service ports 12 or 13, the other port simultaneously communicating, via groove 14a, with an exhaust port 14.
Patent GB-1499804-A (GB)
Title: Thermally insulating and fire resistant compositions and articles made therefrom
IPC: C04B28/26
Filed: 1974-12-17
Abstract: 1499804 Insulating composition A HARTFREE 17 Dec 1974 [17 Dec 1973 14 Nov 1974 20 Nov 1974] 58412/73 49380/74 and 50374/74 Heading C3N A thermally insulating and fire resistant composition comprises hollow spherical particles separated from pulverized fuel ash, a filler consisting of perlite or clay, and a silicate binder. The silicate binder is preferably sodium silicate which may have a specific gravity of 80-125‹ Tw. The clay may be kaolin. The perlite may be a mixture of two batches of perlite having different densities. The composition may also contain a wetting agent such as a disodium salt of half esters of sulphosuccinic acid, and inorganic fibres such as chopped glass fibres. An article formed from the composition may be hardened with carbon dioxide or ethylene glycol diacetate.
Patent GB-1183306-A (GB)
Title: Process for the Production of Polyimide Fibre
Inventor: KOTON MIKHAIL MIKHAILOVICH
IPC: D01F6/76
Filed: 1968-12-10
Abstract: 1,183,306. Polyimide fibre. INSTITUT VYSOKOMOLEKULYARNYKH SOEDINENY AN S.S.S.R. 10 Dec., 1968. No. 58533/68. Heading B5B. Polyimide fibre is produced by extruding a solution of a polyamide acid synthesized from pyromellitic dianhydride and bis-(4- aminophenyl ether)-hydroquinone into a coagulating solution containing at least one alcohol chosen from mono-, di-, and tri-hydric alcohols, and/or an aqueous dimethylformamide solution of at least one thiocyanate or sulphate of a metal of Group I or II of the Periodic Table to form a spun fibre and (b) the spun fibre is (i) treated with a dehydrating agent, or (ii) heat treated in an atmosphere of an inert gas, or (iii) is first treated with a dehydrating agent, e.g. pyridine in acetic anhydride and subsequently heat treated in an inert gas atmosphere, e.g. nitrogen or argon. The solvent medium for the polyamide acid may be dimethylformamide, dimethylsulphoxide or dimethylacetamide.
Patent GB-1244670-A (GB)
Title: Improvements in push-contact device
IPC: H01H13/28
Filed: 1968-12-10
Abstract: 1,244,670. Retractive switches. LEGRAND. 10 Dec., 1968 [13 Dec., 1967], No. 58645/68. Heading H1N. A push-operated switch requiring small travel of the operating member is actuated by small pressure on a flexible planar plate covering an exterior concave face of its housing. A casing 11 carrying terminals 13 and 16 has a metal blade 12 embedded at its two ends and electrically connected to terminal 13. The blade 12 is formed with ears 12a near one end on which a stirrup-shaped member 15, carrying a moving contact 15b, is pivoted. A tension spring 17 connects a lug 15c on stirrup 15 to the free end of a blade 13b which is cut out from blade 12 and has a slot (13c, Fig. 1, not shown) through which the spring 17 passes. A push rod 14 is guided in base-plate 21 to act on the central portion of blade 13b. The plate 21 is slightly concave and is covered by a resiliently flexible operating plate 22 such that light pressure applied near its central portion moves push-rod 14 which gives amplified movement to the free end of blade 13b. This moves spring 17 overcentre and snaps contact 15b into engagement with terminal 16. The flexible plate 22 may be translucent, and light from pilot lamps may pass through holes in plate 21, or through a hole in blade 13b if the push rod 14 is of transparent or translucent material. The plate 22 is secured to plate 21 by a frame 23 which may be integral with plate 22. The plate 22 may have a luminescent coating.
Patent GB-1376800-A (GB)
Title: Retractable hair figure toy
IPC: A63H3/44
Filed: 1972-12-21
Abstract: 1376800 Dolls MATTEL Inc 21 Dec 1972 [3 Jan 1972] 59059/72 Heading A6S [Also in Division E2] A doll's head 24 has a retractable hair piece 60 secured at one end around a hole 52 in the head and passed through a ring 70 connected via a string 72 restrained by a friction gripper 80 to a pull ring 78. The head 24 also carries hair 54 surrounding the retractable hair piece 60. A stand 12 supports a plug 26 on which the friction gripper 80 is mounted, and also carries the head. The friction gripper 80 is so arranged that the string 72 can be pulled more readily in the direction to draw the hairpiece 60 into the head 24 than in the opposite direction, to allow the hair piece to come out of the head.
Patent GB-1145120-A (GB)
Title: Semiconductor devices
IPC: H01L29/73
Filed: 1967-12-29
Abstract: 1,145,120. Etching. RADIO CORPORATION OF AMERICA. 29 Dec., 1967 [20 Jan., 1967], No. 59107/67. Heading B6J. [Also in Division H1] A continuous groove 28 is etched around the periphery of an emitter region 21 of a transistor (see Division H1) where it emerges at a major surface of the semi-conductor body 10<SP>1</SP> containing the transistor, the depth of the groove 28 being 50-95% of the depth of the emitter region 21. The semi-conductor body 10<SP>1</SP> may be of Si, Ge, Si-Ge alloys, or nitrides or antimonides of B, Al, In or Ga. The etchant specified is an aqueous solution of HNO 3 /HF (90: 10 by volume), and the surface is masked by metal layers 26, 27 of Sn, Pb or Sn/Pb alloy on a layer 24 of Ni or Co to produce the desired configuration. During etching the reverse breakdown voltage of the emitter junction is continuously monitored between an adjacent pair of electrodes 26, 27 to determine the instant at which the etching process is to be ceased.
Patent GB-1334910-A (GB)
Title: Vinyl chloride resin composition
IPC: C08L27/24
Filed: 1971-12-20
Abstract: 1334910 Reinforced chlorinated PVC AIR PRODUCTS & CHEMICALS Inc 20 Dec 1971 [28 Dec 1970] 59146/71 Heading C3P A post-chlorinated vinyl chloride homopolymer or copolymer with ethylene or propylene having a chlorine content of 60-73% is reinforced with 1-30 phr. of fully hydrolysed polyvinyl alcohol fibres. The fibres may be in mats or preferably choppings of #-¢ inch and 1-10 denier.
Patent GB-1331076-A (GB)
Title: Methods of manufacturing semiconductor components
IPC: B23K26/064
Filed: 1970-12-17
Abstract: 1331076 Holography SIEMENS A G 17 Dec 1970 [19 Dec 1969] 59843/70 Headings G2J and G2M In the manufacture of semi-conductor components in which a photo-resist material covering a semiconductor body 10 is exposed to etching patterns, the etching patterns are reconstructed from respective holograms 6, and the hologram 6 used to produce the first etching work has at least three adjusting marks 5 recorded therein which are projected on to the body and remain there after the first photo-etching process as discrete reflective areas to provide reference marks to facilitate resetting during projection of each subsequent hologram, the images of corresponding marks from said subsequent holograms being brought into register with the reflective marks made on the body by adjustments to correct the misalignment of the marks being made by observing the maximum spacing between interference fringes produced between the real images of the reference marks, reflected from the discrete areas and the respective virtual images of the same reference marks. During the resetting the body 10 is covered by a mask which only exposes the adjusting marks. Alternatively, the holograms subsequent to the first, are illuminated during resetting with a light of wavelength which does not influence the photo-resist but which reconstructs the reference marks. The holograms may be plane holograms or volume holograms. Where a volume hologram is used the reference marks are recorded as a Lippmann hologram Fig. 5 (not shown). Thus on reconstruction of the hologram a real image of the pattern is formed on the photo-resist and virtual images of the reference marks are formed. The reference marks may be reproduced with a higher luminous intensity then the etching patterns.
Patent GB-1207628-A (GB)
Title: Traffic control apparatus
IPC: G08G1/08
Filed: 1967-12-11
Abstract: 1,207,628. Traffic control systems. E. W. BLISS CO. 11 Dec., 1967 [24 March, 1967], No. 60042/68. Divided out of 1,207,625. Heading G4Q. The Specification contains the same subject matter as that of Specification 1,207,625, but the claims are for a traffic control apparatus having means for providing signals representing a characteristic of the traffic in two directions, means for multiplying one signal with a reference ratio and comparing the result with the other signal, and bi-stable means normally connecting the result to one output but changing over to a different output when the multiplied first signal exceeds the second signal.
Patent GB-1247716-A (GB)
Title: Electrophotographic charging method and device
IPC: G03G15/04
Filed: 1968-12-19
Abstract: 1,247,716. Electrostatic charging method. RANK XEROX Ltd. Dec.19, 1968 [Dec.25, 1967], No.60359/68. Heading G2H. A method of charging an electro-photographic sheet comprises applying a uniform charge with one corona discharge, then a half-tone pattern of charge by means of a second corona discharge through a mesh screen. A corona electrode 3 charges a sheet 2 on a conductive support 1 through a mesh screen 4 which unrolls from a roll 5 as the charging member moves across the sheet. A second corona electrode 7 following the electrode 3 applies a uniform charge. A second embodiment, Fig.4 (not shown) has an additional corona charging device.
Patent GB-1286475-A (GB)
Title: Rotating restaurant
Inventor: JOHNSTON DAVID BRUCE
IPC: E04B1/346
Filed: 1969-12-11
Abstract: 1286475 Revolving restaurants MACTON MACHINERY CO Inc 11 Dec 1969 60517/69 Heading EIA A rotating restaurant comprises a floor 22 in the form of a turntable adapted to rotate adjacent a stationary wall 14 having framed openings therein, the turntable including chairs and tables and having an annular flange 146 connected to its underside in contact with opposed, rotary driving members 38. The members 38 are driven by a common motor through individual spiral reduction gearing. Each member 38 is driven at a peripheral speed substantially equal to the peripheral speed of the flange surface in contact with it. One rotory member 38 acts as a retarding means increasing the load on the other to take up backlash and thereby reduce chatter.
Patent GB-1331870-A (GB)
Title: Electrophotographic apparatus for reproduction of multicoloured originals
IPC: G03G15/01
Filed: 1971-12-30
Abstract: 1331870 Electro-photographic copier FUJI PHOTO FILM CO Ltd 30 Dec 1971 [30 Dec 1970] 60824/71 Heading G2H Photo-conductive sheets cut from a roll 11 and transported by endless belts 15, 16 (and 15', 16') Fig. 3 (not shown) are charged at 23, exposed at 10 to a first colour separation image by an optical system 26-30, developed at 33 with a first coloured toner, charged at 40, exposed at 41 to a second colour separation image by refocusing the system 26-30, developed at 36 with a second toner, charged at 42, exposed at 43 to a third separation image by refocusing system 26-30, and developed at 37 with a third toner to produce a multi-colour copy. Preferably the sheets are pretreated at any stage before development, with insulating liquid 19; are charged by corona discharge wires or needles associated with earthed backing rollers; are line-by-line or whole frame exposed using a lamp 27, lens 28, diffuser 29, original 26, lens 31 and filter 30 mounted on a movable base 32 (alternatively exposure may be made via a reflector or by using a zoom lens); are developed using liquid suspended toner and mesh development electrodes 38, 38', 38"; are washed and squeezed after each development; and are finally dried at 44 and deposited in a tray 47. To position the sheets, accurately for exposure, photo-electric elements (62, 63) may be positioned before and after the exposure stations to stop the endless conveyor belts.
Patent GB-1260320-A (GB)
Title: Water-permeable bituminous compositions
IPC: C08L95/00
Filed: 1969-12-15
Abstract: 1,260,320. Bituminous composition. BITUMARIN N.V. 15 Dec., 1969 [16 Dec., 1968], No. 61029/69. Heading C3N. A bituminous composition for hydraulic engineering applications comprises a mix of a bituminous mortar and a stone fraction, the smallest size D15 of the stone in the stone fraction, expressed in equivalent diameters, having 4-16 times the largest size D85 of the mineral matter of the mortar, the quantity of mortar in the mix being 10-30% by weight. By " the smallest size D15 " is meant the sieve mesh through which 15% by weight of the stone fraction passes whilst by " the largest size D85 " is meant the sieve mesh through which 85% by weight of the minerals passes. - The bitumen employed is preferably an unblown petroleum bitumen which may be fluxed. In examples a bituminous mortar comprising bitumen, sand having a largest D85 of 2À0 mm. and limestone filler, which has a particle size smaller than that of sand is admixed respectively with (a) 25-55 mm. stone fraction having a smallest size D15 of 30 mm. heated to 120 C.; (b) 30-60 mm. gravel having a smallest size D15 of 32 mm. heated to 90 C.; and (c) 30- 100 mm. gravel having a smallest size D15 of 32 mm. at 30 C.
Patent GB-660641-A (GB)
Abstract: 660,641. Calculating-apparatus, mechanical. NATIONAL CASH REGISTER CO. May 6, 1949 [July 17, 1948], No. 704/50. Divided out of 660,620. Drawings to Specification. Class 106 (i). The subject-matter of this Specification is identical with a part of that described in Specification 660,620, but the claims are directed to one and two cycle total-taking operations in a machine having a fixed totalizer as well as a plurality of interspersed totalizers. When an interspersed totalizer is selected for total-taking, the normal cycle is preceded by an additional cycle for aligning the selected totalizer with the amount actuators. A clutch normally connects the operating means for the transaction and amount differentials, and this clutch is disengaged during the initial cycle so that the amount actuators are not operated unnecessarily.
Patent GB-672943-A (GB)
IPC: F28D9/00
Abstract: 672,943. Plate heat-exchangers. AKTIEBOLAGET SEPARATOR. July 15. 1949 [July 16, 1948], No. 18704/49. Class 64(iii) Relates to heat-changers comprising plates 1 spaced apart to provide flow chan-- nels 2 of constant width for the flow of fluid media between adjacent plates, each plate having mutually parallel corrugations extending transversely to the direction of flow of said media. According to the invention the ridges and/or troughs of said corrugations are provided with deformations 3 which lie side by side in the longitudinal. direction of the corrugations and are so arranged that the width of the flow channels 2 between adjacent plates remains constant. Figs. 1 and 2 show one form in which the deformations 3 are disposed in two rows in each of the ridges and troughs of the corrugations in the plate, the deformations being staggered in adjacent rows. Alternatively only one row of deformations may be provided at the ridge or trough of each corrugation. In the form shown in Figs. 3 and 4 the deformations. 3 are provided in the ridges and troughs of the main corrugations, by undulating the plate transversely to the main corrugations.
Patent GB-2023418-A (GB)
Title: Duvets
IPC: A47G9/02
Filed: 1978-06-21
Abstract: A duvet having attachments for reducing the tendency of the duvet to move relative to a bed on which it is to be located. For instance, the attachments may be flaps, removably or permanently secured to the duvet or to the cover thereof, which flaps are intended for tucking between the mattress and the bed frame. Other forms of attachments are described.
Patent GB-2010749-A (GB)
Title: Decorative article
IPC: B44C3/04
Filed: 1979-01-24
Abstract: A decorative article comprises at least one layer of natural shell material 5 bonded to at least one fibrous reinforcing layer 8 embedded in a translucent synthetic resin matrix 7,9. An optional resin layer 6 is provided when it is desired to embed the shell layer 5 in the matrix as well. In a method of producing such an article at least four layers 5,7,8,9 are successively applied to a mould (not shown), and the resin layer 7,9 are caused or allowed to set to form the matrix. The shells may be bivalves. <IMAGE>
Patent GB-2020135-A (GB)
Title: RF Power amplifier
IPC: H03F3/24
Filed: 1979-02-19
Abstract: An RF transmitter amplifier has a grounded anode power tube 36, enabling anode current and voltage meters 18 and 44 to be at a low potential for safety. An amplitude-modulating tube 14 is therefore at a high negative potential, e.g. - 15,000 volts. The modulating signal source 48 is coupled to the grid of the tube by a fibre optics coupler 50 comprising an ultraviolet LED, a fibre optics cable and a photodiode. The cable is more than 10 cm long and allows the source 48 to be outside the HV shielding for the power supply 10 and tube 14. <IMAGE>
Patent GB-2022038-A (GB)
Title: Conversion Unit for a Tractor
IPC: B62D49/06
Filed: 1979-06-01
Abstract: A conversion unit for a tractor has first and second frame sections (2, 3) pivotally connected together (6) and each having a pair of narrow wheels (4, 5). The front section has angle plates (7) which engage the front wheels of a tractor to effect directional change of the wheels of the section through a linkage (10), and the rear frame section has two pairs of rollers (16) for receiving the rear wheels of the tractor and which transmit drive to the wheels of the rear frame section through gearing (17). <IMAGE>
Patent GB-2033981-A (GB)
Title: Multi-ratio Gear Arrangement
IPC: F16H63/40
Filed: 1979-09-06
Abstract: A supervisory control arrangement (123) monitors operator input commands through a shift range selector lever connected to a unit (120), and receives a desired-ratio command either from a shift point computer (121) governed by engine throttle position (110) and vehicle speed (106), or from a manual gear shift selector. When the supervisory control arrangement determines that the desired-ratio signal differs from the actual ratio, the monitoring function is interrupted and a shift- initiate command is provided. This command assigns certain components (125, 126) for use in a shift quality control arrangement (124), for effecting the controlled ratio change. A torque output signal (105) from the vehicle drive line is used in conjunction with the shift quality control arrangement. After the shift is completed, the previously assigned components are released and the supervisory control arrangement resumes the monitoring of the desired ratio as contrasted to the actual gear ratio. This assignment of certain components for each controlled ratio change, and their release so they can be re-used in subsequent ratio changes, contributes to simplification of the logic circuits employed. <IMAGE>
Patent GB-2034841-A (GB)
Title: Improvements in or Relating to Pipe Sockets
IPC: F16L37/084
Filed: 1979-10-11
Abstract: A pipe socket (1) has an annular sealing member (6) positioned in a radially inwardly opening groove (5). The sealing member (61 has a sealing portion (7) for forming a seal against a spigot (3) inserted in the socket. An abutment means shown as a band (10) of segments (11) formed of a rigid material is located by and extends from the sealing member (6) for engaging a radial shoulder (13) of the spigot (3) for limiting withdrawal of the spigot (3) from the socket (1). <IMAGE>
Patent GB-2061629-A (GB)
Title: Liquid cooling of an electric machine rotor winding
IPC: H02K9/193
Filed: 1979-10-11
Abstract: Cooling liquid is supplied to a winding (2) of a rotor (3) through a pipe (6), and is discharged along the internal surface of a cylindrical member (12) fastened to the rotor (3) and having an annular recess (13) on its internal surface to collect the liquid. A stationary internal cylindrical member (15) has an annular projection (14) extending into the annular recess (13) and liquid passes into it, is slowed down and then flows along the passage 16 to the collecting chamber (4) from whence it is delivered to the inlet (6) again. The annular projection (14) has at least one internal annular cavity (17) open on a circumference of the projection (14), and there may be radial vanes on the internal surfaces of the projection (14) to assist in slowing down the liquid: the cross section of the annular cavity (17) may increase radially inwardly to assist the flow of liquid. The invention can be used in turbo-generators with a self-pumping liquid cooling system. <IMAGE>
Patent GB-2060210-A (GB)
Title: Surge suppression apparatus for compressor-driven system
IPC: F04D27/02
Filed: 1979-10-11
Abstract: Surge in a compressor-driven system, such as a refrigeration system, is precluded by sensing an appropriate parameter, for example the gas flow at the compressor discharge outlet, and developing therefrom a feedback signal which dynamically varies the capacity of the compressor so that the discharge pressure versus discharge flow rate characteristic curve of the compressor always has a negative slope at the operating point, regardless of where that point is located on the curve. In an embodiment the speed of a centrifugal compressor 10 in an air conditioning refrigerator is varied by adjusting the frequency and voltage of an inverter supply 21 to its induction motor drive 19 in response to the output flow of the compressor and its derivative 43. These parameters are also controlled to maintain constant the temperature of chilled water for the system. <IMAGE>
Patent GB-2065763-A (GB)
Title: A hot fuel gas generator
IPC: F02M31/125
Filed: 1979-12-11
Abstract: A generator for producing hot fuel gas for an internal combustion engine 75 comprising a closed pressure vessel 10 having a heat exchanger 16 including, an electric heating element 25, fins 18 on said heat exchanger, said fins extending to the walls of said pressure vessel and staggered openings in said fins to form a passageway therethrough means 51 for continuously injecting a predetermined amount of a liquid hydrocarbon into said pressure vessel, a valve 20 positioned in an opening in said pressure vessel, and in communication with the intake manifold 41 of said internal combustion engine 75 and a linkage, 45, 48, 49 for moving said valve from a closed position to an open position in conjunction with the engine combustion air throttle. Means 50 is arranged to continuously inject a predetermined amount of water into the pressure vessel, the steam/vaporised fuel mixture passing via filter 22 to chamber 11a. <IMAGE>