baber/WOPTO huggingface dataset:
Patent GB-1414958-A (GB)
Title: Binary arithmetic units
IPC: G06F7/52
Filed: 1971-11-03
Abstract: 1414958 Digital arithmetic units NATIONAL RESEARCH DEVELOPMENT CORP 30 Jan 1973 [3 Nov 1971] 51122/71 Heading G4A A binary arithmetic unit comprises a rectangular array of cells, each as in Fig. 4, for performing multiplication or addition. The numbers are each in the form of a mantissa and exponent. Multiplication takes place by repeated addition and shift. If the numbers are such that overflow occurs from multiplication or addition of the mantissa, shift prior to the next addition is inhibited and a bit is added to the exponent result. Each cell comprises a full adder 14 and gates and inverters as shown. The various input and output leads are connected to the corresponding output and input leads of adjacent cells as in Fig. 3, which illustrates a multiplier for numbers with 4-bit mantissas and exponents. The lowermost row of cells receives the multiplicand bits on c and the multiplier mantissa on b. The exponent bits of the multiplier are received on d of the cells h11, h21, h31, h41 corresponding to the multiplicand exponent. In the case of the mantissa cells, a O-bit is applied to d, i and j of the bottom row. As a result the bits on c and b are added, the bit on c is passed via k to the diagonally adjacent row, and the carry bit (if any) passed via g to e of the next cell. Multiplication proceeds by addition and shift from row to row. If overflow occurs, i.e. if a bit appears on g or k of the rightmost cells of any row except topmost, a 1-bit is applied to j of the next row, the carry bit on g is applied to p, and the bit on k to n. As a result of the 1-bit on j, in the remaining mantissa cells the bit on c is passed via l to n of the vertically adjacent cell, and the sub-total bit from d via m to p of the horizontally adjacent cell. In other words, there is no shift prior to the next addition, contrary to the operation when there is no overflow. In the case of the exponent cells, a 1-bit is applied to i, so that the adders in the first row add the relevant bits of the portions of the exponents. The sum output f is applied to d of the next row. There is a 0-bit on k since gate 30 is inhibited by i. When a 1-bit appears on j due to overflow from the mantissa section c is passed to n of the vertically adjacent cell and d to p of the horizontally adjacent cell, as before, and a 1- bit is added to the left-most cell of the relevant row since j is connected to e in this cell, so increasing the exponent portion by 1. Rounding up may be performed by connecting f and i of the topmost row to additional cells, Fig. 7 (not shown), and setting aside one row and column of the array. The set aside row serves to add 1 to the exponent if there is a carry from the last stage of the preceding row. The additional cells then provide the mantissa of the result of the multiplication rounded up in accordance with the least significant bit. Multiplication of negative numbers or of numbers with the mantissa or exponent in 2's complement form is referred to. The array may perform as an adder if a 1-bit is applied to all inputs i.
Patent GB-1509360-A (GB)
Title: Organopolysiloxane composition
IPC: C09J183/00
Filed: 1976-12-08
Abstract: 1509360 Heat-curable silicone composition containing epoxy siloxane additives TORAY SILICONE CO Ltd 8 Dec 1966 [15 Dec 1975] 51178/76 Heading C3T A heat-curable organopolysiloxane composition comprises (1) 100 p.b.w. of a siloxane of average unit formula RaSiO4-9, wherein R is #2 OH, a C1-4 alkoxy radical, or a C1-8 optionally substituted hydrocarbyl radical, at least 25 mol% of the groups R being unsubstituted hydrocarbyl radicals, and a is 1-3; (2) 0À01-10 p.b.w. of an organic peroxide catalyst; (3) 0À01-20 p.b.w. of a compound containing at least one group A(R<1>O)2Si- and at least one C1-4 alkyl or alkenyl radical or H atom bound to Si, A being a monovalent epoxyhydrocarbyl group; and optionally (4) up to 400 p.b.w. of a filler. In the examples 100 p.b.w. of a polydimethylsiloxane, unmodified (Ex. 1), or containing 0À1 mol% MeViSiO units (Ex. 2), or 3 mol% of MePhSiO units (Ex. 3), or a 70 : 30 mixture of a copolymer of PhMeSiO (62 mol%), PhViSiO (29À6 mol%) and PhMeViSiO0À5 (8À4 mol%) units with Me2ViSiO (Ph2SiO) SiMe2Vi (Ex. 4) is mixed with 1-2 p.b.w. of the siloxanes or a copolymer of the units glycidoxypropyl dimethoxysiloxane (6%), MeSiO1À5 (50%), Me2SiO (40%) and ViSiO1À5 (4%), and optionally 30 50 p.b.w. of treated fumed silica or acetylene black, and cured with 2,4-dichlorobenzoyl peroxide, benzoyl peroxide, cumyl peroxide, or t-butyl peroxide. The cured rubbers adhere to ceramic, steel, aluminium, nickel, copper, zincplated iron, polyethylene terephthalate, polyamide and polyimide surfaces.
Patent GB-1440716-A (GB)
Title: Clip for linking wires
IPC: H01R43/00
Filed: 1974-04-25
Abstract: 1440716 Clips BERGWERKSVERBAND GmbH and STEINHAUS GmbH 25 April 1974 [20 Oct 1973] 51302/75 Divided out of 1440715 Heading E2B A steel wire clip for linking wires 16, 17 together is shaped as shown with a longer arm 13 projecting over a shorter arm 11 to form a space 15 into which the wires may be forced by a hand-tool [see the Parent Specification 1440715] so that they snap into the space 18 as shown in Fig. 2.
Patent GB-1202943-A (GB)
Title: Photoelectron spectrometer
Inventor: MUNDAY CHARLES WALTER
IPC: H01J49/48
Filed: 1967-11-11
Abstract: 1,202,943. Making grid electrodes. BP CHEMICALS (UK) Ltd. 14 Oct., 1968 [11 Nov., 1967], No. 51416/67. Heading B3A. [Also in Division H1] The slotted grid electrode of a photo-electron spectrometer comprises a number of stacked aligned perforated plates 1 separated by one or more spacers 4 situated totally within the space between adjacent plates, and both the plates 1 and spacers 4 have a surface formed of the same electrical conductor, e.g. gold or platinum which may be formed as a surface coating on a support of copper, brass or anodized aluminium. The plates 1 may be prepared by coating a sheet of copper, for example, with a light sensitive material resistant to acid, exposing it to light through a stencil and etching away with acid those areas of the copper sheet exposed to the light. After removing the remainder of the coating the copper plate of the desired form may be coated by electroplating.
Patent GB-1144809-A (GB)
Title: An anti-dazzle perforated screen particularly for motor vehicles
IPC: B60J1/20
Filed: 1966-11-18
Abstract: 1,144,809. Vehicle visors and curtains. L. MASI. 18 Nov., 1966 [29 Nov., 1965; 24 Jan., 1966; 16 Sept., 1966], No. 51761/66. Heading B7J. A perforated vehicle sun visor or light filtering curtain has a quincunx pattern of holes therein of from 0À5 to 1À5 mm. diameter distanced apart 1À5 to 4 mm. respectively. In Fig. 2, a usual visor 7 has visors 8<SP>1</SP> and 8<SP>11</SP> constructed according to the invention fastened thereto by crocodile clamps 10, Figs. 5 and 6 (not shown). The visors 8 are hinged at 9 but 8<SP>1</SP> may not be hinged up without 8<SP>11</SP> due to the overlapping of 8<SP>1</SP> at the division 12, the screen 8 may however fully replace the visor 9 and be directly hinged to the vehicle body. In Fig. 7, and Figs. 8-10 (not shown), the screen is shown as a side curtain having an adjustable flexible strap 33 at the bottom. In Fig. 11, there are two curtains 46 which may be raised from or lowered into a spring return roller 44 fastened at 41 to the inner waist of the vehicle. Hooked tongues 57 on the curtains are adapted to be engaged in slits 65, Fig. 16 of plate members 61 pivoted to an upper window frame member 4 provided with stop shoulders 64.
Patent GB-1123930-A (GB)
Title: Winning or driving machine for the winning of minerals
Inventor: PILZ BERTHOLD
IPC: E21C35/08
Filed: 1966-11-21
Abstract: 1,123,930. Mineral-mining machines. GEWERKSCHAFT EISENHUTTE WESTFALIA. 21 Nov., 1966, No. 52012/66. Heading E1F. The advance of a mineral-mining machine is controlled by a system actuated in response to the energy absorption of the mineral to be mined of a sound signal imparted to the rock by means on the machine and picked up by receiving means also on the machine.
Patent GB-1448829-A (GB)
Title: Preparation of co-polymer of vinyl monomers and polyalkylene ethers
IPC: C08F2/38
Filed: 1973-09-18
Abstract: 1448829 Polyalkylene ether copolymers; polyurethanes GENERAL TIRE & RUBBER CO 18 Sept 1973 [24 Nov 1972] 52073/74 Divided out of 1448828 Headings C3P and C3R A copolymer having an average functionality of 2 to 6 and selected from a copolymer of a vinyl monomer selected from styrene, methacrylonitrile, acrylonitrile and a methyl or ethyl acrylate or methacrylate with a polyalkylene ether itaconate macro-monomer having an equivalent weight of 100 to 3000 per hydroxyl group, having one to three hydroxyl groups per molecule, and having one copolymerizable carbon-to-carbon double bond per molecule; and a copolymer of a vinyl monomer selected from vinyl chloride, vinylidene chloride and vinyl acetate with a polyalkylene ether maleate or fumarate macromonomer having an equivalent weight of 100 to 3000 per hydroxyl group, having one to three hydroxyl groups per molecule, and having one copolymerizable carbon-to-carbon double bond per molecule is prepared by (1) mixing the macromonomer and the vinyl monomer in a mole ratio of 1 : 5 to 1 : 50 simultaneously with a chain transfer agent and an initiator for radical polymerization, the initiator being selected from peroxides and aliphatic diazo compounds, and (2) activating the initiator to cause the polymerization of the vinyl monomer and macromonomer. The macromonomer may be prepared by the telomerization of one or more alkylene oxides of the general formula where R is hydrogen or an alkyl group of less than ten carbon atoms, and a is hydrogen or an alkyl group of less than ten carbon atoms or R<SP>1</SP>CH 2 - where R<SP>1</SP> is an aryl, alkoxy or alkyl carboxy group of less than ten carbon atoms, in the presence of a catalyst and a telogen selected from maleic, fumaric and itaconic acids and their derivatives. In the examples macromonomers prepared by the telemerization of propylene oxide in the presence of Zn 3 (CO(CN) 6 ) 2 - dimethoxy ethane complex, maleic acid and itaconic acid are copolymerized with vinyl chloride, acrylonitrile, styrene and methyl methacrylate in the presence of azo-bis-isobutyronitrile, benzene, carbon tetrachloride, trichlorobromomethane and triethylamine. Polyurethane films and foams may be prepared from the macromonomers or the copolymers. In the examples 1,2,4-butanetriol, stannous octoate, triethylene diamine, 2,4- and 2,6-toluene diisocyanates, polypropylene ether triol, tetramethylbutane diamine, N-methyl morpholine, water, silicone surfactant and diglycidyl ether of bisphenol A are used.
Patent GB-1148696-A (GB)
Title: Impact-absorbing arrangement between lifting needle and draw-hook in dcbbies
IPC: D03C1/06
Filed: 1967-11-20
Abstract: 1,148,696. Dobbies. STAUBLI & CO. GEB. 20 Nov., 1967 [24 Nov., 1966], No. 52621/67. Heading D1E. In a dobby at least one of the contact surfaces between the lifting needles and draw hooks is formed by a shock and vibrationabsorbing part. This may comprise, Fig. 4, a cap 6 of synthetic material on the needles 4. A steel, rubber, or other insert may be provided in the head of the cap 6 or a spring- loaded insert may be used. Alternatively, or in addition, the contact point of the draw hook 1, Fig. 7, may be provided with an insert 14 of shock absorbing material such as a synthetic material or rubber, or a spring plate. The synthetic material used may be acetal resin or glass fibre strengthened polyamide.
Patent GB-1397483-A (GB)
Title: Sulphamoyl substituted 3-anilino-2-pyrazol-5-ones and their use as magenta couplers in silver halide photographic emulsions
IPC: G03C7/38
Filed: 1973-11-15
Abstract: 1397483 Photographic 3-anilino-2-pyrazol- 5-one magenta colour couplers FUJI PHOTO FILM CO Ltd 15 Nov 1973 [15 Nov 1972] 53162/73 Heading G2C [Also in Division C2] A non-diffusing magenta coupler for use in silver halide photographic emulsions comprises a 3-anilino-2-pyrazol-5-one wherein the anilino group of said coupler is substituted in at least one of the ortho-positions thereof by a halogen atom or an alkyl, aryl, alkoxy, aryloxy, alkylthio, arylthio, amino, amido, hydroxyl, cyano or nitro group and in at least one of the meta- and para-positions thereof by a sulphamoyl group.
Patent GB-1109160-A (GB)
Title: A gas inlet system for gas analyzers and gas analyzing system employing same
IPC: G01N30/72
Filed: 1966-11-29
Abstract: 1,109,160. Gas analysis. VARIAN ASSOCIATES. Nov.29, 1966 [Dec. 6, 1965(2); June 6, 1966; July 6, 1966], No.53450/66. Heading G1B. A sampling arrangement for introducing gaseous materials from a source e. g. a gas chromatograph, into an analyzer, e. g. a mass spectrometer comprises a membrane 13, free of holes, and in which the permeability of permanent gases such as are used as the carrier in a gas chromatograph is substantially less than that of the gases which are to be detected, a vacuum pump being connected so as to establish a pressure differential across the membrane such that the lower pressure region is connected to the analyzer. The membrane 13 may be formed either from a polymer, e. g. a polysiloxane, which may have a liquid phase coating 24, or from a stationary liquid phase confined within a thin-wall vessel constructed of gas-permeable material. In use the gases to be detected are arranged to be soluble in the membrane and in this way are separated from the carrier gas and permeate the membrane. The membrane 13 may be supported by a perforated support 23 and is hermetically sealed in a member 11 for connection between the gas source on one side, and the vacuum pump and analyzer on the other. If desired two similar membranes may be used in series in the gas line to the analyzer.
Patent GB-1358510-A (GB)
Title: Enhancement-type complementary  mis semiconductor device
IPC: H01L29/78
Filed: 1972-11-22
Abstract: 1358510 Semi-conductor devices SUWA SEIKOSHA KK 22 Nov 1972 [25 Nov 1971] 53882/72 Heading H1K Complementary IGFETs, both of which exhibit a threshold voltage of not greater than 1.2 volts, are formed in a (100) oriented N-type Si substrate 11 or epitaxial layer having a resistivity greater than 30#/cm., the gate insulations of both IGFETs comprising silicon nitride 20 on silicon oxide 19 and the source, drain and gate metallization 22 being evaporated Al. As shown the P channel device comprises B-doped P-type source and drain regions diffused into the substrate 11 from a boron oxide layer, and the N channel device is formed in a P-type pocket 13 diffused from a B-doped silicon oxide layer. The N-type source and drain regions 18 are diffused from a phosphoric oxide layer. A further silicon oxide layer 21 preferably covers the nitride layer 20 except at the gate region. Care is taken at all stages of the manufacture to exclude contaminants in the gate insulation which would tend to raise the threshold voltage, particularly in the P channel device, and details of the necessary precautions are given. In a modification of the illustrated structure the nitride layer 20 covers the exposed edges of the oxide 19 as well as its top surface.
Patent GB-1065990-A (GB)
Title: Foldable bridge structure
Inventor: HIRE WILLIAM RUSSELL
IPC: E01D15/12
Filed: 1965-12-21
Abstract: 1,065,990. Folding bridges; scaffold boards. RESEARCH MAUFACTURING, Inc. Dec. 21, 1965, No. 54086/65. Headings E1G and E1S. A folding bridge comprises load supporting ride rails 12 spaced apart by transverse members 13 which allow rotation of the rails 12 about their longitudinal axes such that the axes of hinges 12a joining the rails may move from a position permitting folding to a position in which the hinges become self locking. The pintles of the hinges are spaced on opposite sides of the longitudinal rail axis to allow zig-zag folding. Walkways 25 are secured to the transverse members.
Patent GB-1293586-A (GB)
Title: Electrophotographic developing apparatus
IPC: G03G15/10
Filed: 1969-11-05
Abstract: 1293586 Electro-photographic developing apparatus; automatic concentration control CANON K K 5 Nov 1969 [5 Nov 1968] 54246/69 Headings G2H and G3R A pump 3 circulates liquid developer between a reservoir 1, a developing trough 8 and a vessel 9; toner concentrate being siphoned from a container 19 to vessel 9 when the concentration of the liquid falls. As shown, when concentration falls, a detector comprising a lamp 11 and photoconductor 12 energizes an electromagnetic 14 via a transistor circuit, Fig.2 (not shown). This opens a valve 17 to divert incoming liquid down a pipe 18, and closes a duct 16 so that liquid discharged through a pipe 10 produces a negative pressure in vessel 9 which siphons toner concentrate from container 19.
Patent GB-1210669-A (GB)
Title: Improvements in positive-control electric starter drivers
IPC: F02N15/06
Filed: 1967-11-29
Abstract: 1,210,669. Starters. REGIE NATIONALE DES USINES RENAULT AND AUTOMOBILES PEUGEOT. Nov.29, 1967 [Dec.28, 1966], No.54285/67. Heading F1K. An electric starter drive is engaged by a rocking fork-shaped lever 11 and actuated by control means having an electromagnet 17 with a core 4 associated at one end with a switch (not shown) of the motor energization circuit and at the other end with the forked lever 11. Means for locking the drive is an electromagnet having a core which positively locks the drive in its inoperative position directly or through the forked lever. In a modification (not shown) the electromagnet core is formed with a cam face which co-operates with balls which are released when the core is attracted. Other modifications are described.
Patent GB-1075820-A (GB)
Title: Improvements in or relating to apparatus for the working and feeding of synthetic plastic mixes
IPC: B29C48/76
Filed: 1965-12-23
Abstract: 1,075,820. Screw presses. REIFENH€USER KOMM. GES. Dec. 23, 1965 [Jan. 2, 1965], No. 54607/65. Addition to 937,324. Heading B5A. [Also in Division B1] The extrusion apparatus or screw press described in Specification 937,324 is modified by having gas outlets 10 along barrel 3a in addition to outlet 2 in the vicinity of expansion chamber 9. Furthermore the shaft of screw 5 may have an axial bore 11 and radial bores 12 which may act as a further gas outlet or as an inlet for a foam forming reactive mix. Suction may be applied at all the gas outlets and the provision of outlets 10 allows the pressure drop in chamber 9 to be increased so that synthetic plastic material does not escape through outlet 2.
Patent GB-1082110-A (GB)
Title: Microwave identification of railroad cars
Inventor: MOLNAR STEVEN
IPC: B61L25/04
Filed: 1965-12-24
Abstract: 1,082,110. Aerials; radar; radio signalling. AMERICAN BRAKE SHOE CO. Dec. 24, 1965, No. 54787/65. Headings H4A, H4D and H4L. [Also in Division B7] A coded identification member (14), Fig. 1 (not shown), which may be fixed to a railway truck (12) and be scanned as it passes by a microwave beam from a trackside station (11), comprises a smooth-faced dielectric material base 200, Fig. 3, which has a plurality of equally spaced code positions 201 along its length, each of which either contains a code element (corresponding to binary " one ") or is left blank (corresponding to binary " zero "). The code elements consist of small V reflectors 212, 213, 214 . . . which are contained in depressions 202, 203, 204 . . . in the face of the base 200. The reflectors have a V angle of substantially 90 degrees, and may be fabricated from thin conductive sheet and secured by adhesive in the depressions, or they may be formed as conductive coatings on the walls of the depressions. The axes of the depressions and the contained reflectors are disposed alternately at 45 degrees and 135 degrees to the horizontal. The reflectors may be projected by painting or by means of a thin coverplate (222), Fig. 4 (not shown), of plastics material. In another embodiment, a base (230), Fig. 5 (not shown) is made of conductive metal and the code elements consist of depressions (232), 233), (234) . . . in its front face which have a V-shaped cross-section (Fig. 6, not shown). In use, horizontally polarized microwave radiation is focused in a narrow vertically extending band (56), Fig. 2 (not shown), upon a coded identification member (14C) by apparatus at the said trackside station comprising a tranmitting aperture at the end of a waveguide (16C), a semi-circular zone plate lens (51) and a horizontal polarizing grid (101). Each V- reflector in the member (14C) reflects back radiation as it passes by which has its plane of polarization turned by 90 degrees, that is, is vertically polarized. This passes through a vertical polarizing grid (102) and is focused upon a receiving aperture at the end of a waveguide (18C). An earthed conductive plate (62) extends horizontally backwards from the common axis of the lenses (51), (52) and screens the receiving equipment, comprising a detectoramplifier (46) and a decoder (48) fed from the waveguide (18C), from the transmitting equipment, comprising a power supply (41) and a klystron oscillator (42) feeding the waveguide (16C).
Patent GB-1442386-A (GB)
Title: Production of unsubstituted and substituted isotoic an hydrides
IPC: C07D263/26
Filed: 1973-11-27
Abstract: 1442386 Isatoic anhydride production BASF AG 27 Nov 1973 [28 Nov 1972 14 Sept 1973] 54862/73 Heading C2C Optionally substituted isatoic anhydride is made by reacting an appropriate alkali or alkaline earth metal phthalamate with a hypohalite in an aqueous medium in the presence of a compound which inhibits the freeradical polymerization of vinyl compounds and/or in the presence of Br, I and/or an amide where X is H, Cl or Br; R<SP>1</SP> is sulpho, sulphonate or sulphonamido; R<SP>2</SP> is H, Cl or Br; or R<SP>1</SP> and R<SP>2</SP> together form a heterocyclic ring having, adjacent to the nitrogen, at least one sulphonyl or phosphonyl group >P(O)OR<SP>3</SP>, where R<SP>3</SP> is hydrogen or an alkali metal atom; or R<SP>1</SP> and R<SP>2</SP> together may be -CO-R<SP>4</SP>-CO-, where R<SP>4</SP> is alkylene, R<SP>5</SP> is H, Cl or Br and R<SP>6</SP> is an aliphatic radical, and/or in the presence of a compound which, under the reaction conditions, forms Br, I or an amide (I)
Patent GB-1205094-A (GB)
Title: Improvements in or relating to the treatment of hypertension
IPC: A61K45/00
Filed: 1968-11-20
Abstract: 1,205,094. Salt of zinc chelate of diethylenetriaminepenta acetic acid. COOPER LABORATORIES Inc. 20 Nov., 1968 [21 Nov., 1967], No. 55029/68. Addition to 1,152,650. Heading C2C. Novel trisodium or tripotassium salts of the zinc chelate of diethylenetriaminepenta-acetic acid and hydrates thereof are prepared by reaction of the alkali metal hydroxide, the diethylenetriaminepenta-acetic acid and zinc acetate in the appropriate proportions followed by crystallization. Pharmaceutical compositions in conventional forms for oral or parenteral administration and used for treating hypertension comprise an above novel compound and a carrier or diluent therefor.
Patent GB-1131599-A (GB)
Title: A lifting jack
IPC: B66F3/00
Filed: 1967-12-04
Abstract: 1,131,599. Lifting-jacks. A. HAHN. 4 Dec., 1967 [5 Dec., 1966], No. 55099/67. Heading B8J. [Also in Division B3] A lifting jack comprises an upright column 1 mounting a sliding carriage 2 with two oppositely placed walls having openings 2a with oblique running surfaces 3 sloping towards the column 1 in an upward direction. In the openings 2a is a drive roller 4 with guide collars 4a, 4b and smooth end journals 6, 6a which run against the surfaces 3. The central section of the roller 4 has helical teeth 9 which bite into the column 1 when the roller 4 is turned under load by a bar or crank in an eye 5. Instead of having teeth 9 the roller 4 may be knurled. The toothed surface of the roller 4 is harder than the part of the column 1 it engages. The carriage 2 has an abutment 8 to lift the load. The first time the jack is used the teeth 9 bite corresponding recesses in the column 1, a positive engagement being obtained which prevents sliding. The angle of the surfaces 3 is so chosen that the jack is self-locking. A spring 7 continuously presses the roller 4 upwards.