baber/WOPTO huggingface dataset:
Patent GB-1534945-A (GB)
Title: Rack for accommodating printed circuit boards
IPC: H05K7/14
Filed: 1976-11-18
Abstract: 1534945 Racks for printed circuit boards VERO ELECTRONICS Ltd 3 Nov 1977 [18 Nov 1976] 48169/76 Heading H1R A rack for circuit boards comprises (Fig. 1) an, e.g. metal backplate 10 carrying upper and lower longitudinal end plates (not shown) and pairs of opposed channel guides, e.g. 13 slotted at 14 to receive the edges of boards e.g. 15. For each pair of guides a two part separable connector 16, 17 is mounted on board 15 and plate 10. Each connector 17 (Fig. 3) has a plastics carrier 18, recessedly receiving an inner moulding 19 and carrying rearwardly projecting contact pins 20, mounted on the backplate 10 in vertical slot 21. Each front connector 16 is socketed at 24 (Fig. 5) to contain rearwardly projecting pins 25 contacting pins 20 when the connectors are assembled, and has projecting pins 33 passing through holes 34 of board 15. Plastics bars 27, 28 are respectvely attached to boards 15 and carriers 18 and are recessed to receive pegs 30 fitted in desired coded combinations so that each board may be fitted only in the appropriate connector 17. The connecting pins may be automatically pre-wired by wrap ping, for appropriate interconnection. In a modification the carriers have forward extension guides receiving the circuit boards and form a sub-assembly with their associated connectors (Figs. 2, 4, not shown), and a bus-bar assembly may be provided having rear projecting contact pins.
Patent GB-1162690-A (GB)
Title: Digital Flip-Flop Switching Unit
Inventor: COMBET MICHEL
IPC: H03K3/29
Filed: 1966-10-27
Abstract: 1,162,690. Electrical digital registers. EUROPEAN ATOMIC ENERGY COMMUNITY. 27 Oct., 1966 [1 Dec., 1965], No. 48240/66. Headings G4A and G4C. [Also in Division H3] A digital register, which is connected to an AND gate which issues an output only when the register assumes a unique condition, is caused to assume said unique condition in response to an input pulse applied to the output side of said AND gate. Positive input pulses at 15 operate on a binary cascade counter comprising crossconnected transistor pairs 12, 13 in known manner. Assuming that the counter is in state 01 then both diodes 17 conduct and a positive output appears. If the counter is in any other state there is no output, but a +ve setting pulse at 9 cuts off transistor 16 to draw current through the diodes 17 so bringing the counter to the condition 01 and resulting in a maintained output. The register may be used for programming computers.
Patent GB-1101938-A (GB)
Title: Torque amplifier
IPC: G01D5/245
Filed: 1965-11-15
Abstract: 1,101,938. Torque amplification. KOLLSMAN INSTRUMENT CORPORATION. Nov. 15, 1965 [March 3, 1965], No. 48433/65. Heading G1N. Rotation of a shaft, 14, Fig. 6, varies the e.m.f. induced in the fixed "rotor" winding 53 of a synchro device by rotating a movable core member 64, thereby varying the coupling between the rotor winding and the stator winding 55, the output signal of the rotor winding being amplified, at 22, and used to drive a motor 25 which repositions the stator winding to cancel the rotor voltage and at the same time rotates an output shaft 30. The rotation of the shaft 14 may be dependent upon pressure in an expansible capsule 10, and the output shaft 30 may control, for example, the throttle setting on an aircraft. In the synchro device disclosed, Figs. 4 and 5 (not shown) stator winding (55) is wound in slots in a laminated annular core member (56) and the "rotor" winding (53) is wound in fixed axial relationship to the stator winding. Coupling between the two is controlled by the rotatable core (64) part of which extends in helical fashion around a central core portion (52) of the synchro body. The core is arranged to rotate with a shaft (63) relative to the main synchro assembly (51, 52). Zero adjustments to the device are made by means of a magnetic plate (65) the position of which may be adjusted transversely to the axis of the device.
Patent GB-1477696-A (GB)
Title: Polymeric polyblends
IPC: C08L77/00
Filed: 1974-11-08
Abstract: 1477696 Polymer blend MONSANTO CO 8 Nov 1974 [9 Nov 1973] 48433/74 Headings C3P and C3G A polymer blend comprises (A) a polymer or a monoalkenyl aromatic monomer, (B) a graft polymer of a monoalkenyl aromatic monomer on a conjugated diene rubber and (C) a block copolymer of at least 55% of a monoalkenylaromatic monomer and not more than 45% of a conjugated diene. Components (B) and (C) are dispersed as particles in a matrix of (A). The blend may be obtained by dry blending followed by melt mixing. The rubber used in component (B) is suitably a stereospecific butadiene polymer. Examples refer to blends of polystyrene, polystyrene grafted on stereospecific polybutadiene and polystyrene-polybutadiene block copolymers containing a major amount of the polystyrene block.
Patent GB-1331659-A (GB)
Title: Pneumatic tyres and rims
IPC: B60C15/02
Filed: 1971-10-20
Abstract: 1331659 Wheel rims MICHELIN & CIE (Compagnie Generale des Etabs Michelin) 20 Oct 1971 [20 Oct 1970] 48819/71 Heading B7C A wheel rim comprises a substantially flat base with a flange 6 at one edge formed with a conical seat 10 and a recess at its other edge containing a split ring 8 with a conical seat, the half apex angle of the cones, measured to the rotational axis of the wheel, being between 10 and 30 degrees. The seats receive annular tyre bead seating rings 3 having complementary conical surfaces. The tyre beads may be wedged or fixed to the rings. Retaining flanges 4 may be separate from or integral with the rings. The cone angles are said to resist relative turning between the rings and the rim with a preferred angle of 20 degrees. One cone surface of each mating pair may be coated with a plastics material and the other roughened.
Patent GB-1034939-A (GB)
Title: Isoxazole derivative and processes for its production
IPC: C07D261/12
Filed: 1964-12-04
Abstract: The invention comprises 3-hydroxy-5-aminomethylisoxazole and its acid addition salts, pharmaceutical preparations containing them, and their preparation by (a) reducing a compound of the formula <FORM:1034939/C2/1> (wherein R represents a hydrogen atom or benzyl group), (b) hydrogenolysing 3-benzyloxy-5-aminomethylisoxazole, (c) heating a compound of the formula <FORM:1034939/C2/2> (wherein R11 represents an alkyl group containing not more than four carbon atoms or a benzyl group) with hydrobromic or hydrochloric acid, pyridine hydrobromide or hydrochloride or an alkylpyridine hydrobromide or hydrochloride, (d) reacting a reactive ester of 3 - hydroxy - 5 - hydroxymethylisoxazole with ammonia, or (e) hydrolysing a compound of the formula <FORM:1034939/C2/3> (wherein Ac represents an acyl group containing not more than seven carbon atoms), optionally followed in each case by acid addition salt formation.  The preparation of 3-methoxy-5-bromomethyl-isoxazole, 3 - methoxy - 5 - azidomethylisoxazole, 3 - hydroxy - 5 - azidomethylisoxazole, methyl g  - chloro - b ,b  - dimethoxybutyrate, g  - chloro-b ,b -dimethoxybutyrohydroxamic acid, 3-hydroxy-5 - chloromethylisoxazole, 3 - benzyloxy - 5-acetamidomethylisoxazol and 3 - hydroxy - 5-acetamidomethylisoxazole is described.  The compounds of the invention strongly potentiate anaesthetics, reduce motility, have catatonic and sedative effects, inhibit the tremorine tremor and have an anti-emetic action.  They may be administered in the form of pharmaceutical preparations containing them together with a carrier.
Patent GB-1278439-A (GB)
Title: Improvements in or relating to electrical circuit arrangements
IPC: G06G7/20
Filed: 1969-10-08
Abstract: 1278439 Electric analogue calculating MARCONI CO Ltd 8 Oct 1969 [9 Oct 1968] 49466/69 Heading G4G In a circuit for deriving a signal representative of the square root of the sum of the squares of two input signals V 1  and V 2 , the latter are divided at 11 and 21 by the output V 3  of the adder 30, and the resulting quotients are multiplied at 12 and 22 by the respective input signals V 1  and V 2  to give V 1 <SP>2</SP>/V 3  and V 2 <SP>2</SP>/V 3 . These are added at 30, whence so that V 3 , which may be taken off at terminal 31, is equal to the required square root. Fig. 3 shows an application of the circuit for extracting the common carrier voltage V from the sine and cosine amplitude modulated outputs of a synchro differential resolver. The output signals Vsin# and Ccos# from the resolver are fed to demodulators 1 and 2 to provide D.C. outputs which are applied to respective comparators 111 and 211, the second inputs to which are formed by the output of a sawtooth generator 32 which is controlled by, and has an amplitude related to the value of, the output of adder 30, which may be shown to be The comparators are arranged to provide an output only when the Vsin# or Vcos# input is equal to or greater than the sawtooth waveform input, whereby, the square wave outputs from the comparators have a mark-space ratio determined by sin# and cos#. These signals are applied to the transistor switches 121 and 221, respectively, to provide D.C. outputs from the filters 14 and 24 equal to Vsin<SP>2</SP># and Vcos<SP>2</SP>#, which are added in adder 30 to provide a signal equal to V.
Patent GB-1368260-A (GB)
Title: Building partition assembly
IPC: E04B2/74
Filed: 1971-10-26
Abstract: 1368260 Partitions, composite panels UNITED STATES GYSUM CO 26 Oct 1971 49741/71 Headings E1B and E1W A partition for, e.g. a school, comprises panels 44 with sealing strips 84a, 84b arranged along their vertical edges, which strips provide, inter alia, a certain amount of resistance to loading against the face of the panel. Each panel is located in a ceiling channel 36 at its upper edge, and by one or more plates, which may, e.g. be spiked (as at 80), at its lower edge. Each panel may comprise a pair of laminated insulation boards 47a, 47b with sheet steel facings 48, 50, bent to form side and bottom edge channels, e.g. 58, in which are located the sealing strips and an H-sectioned base strip 72, respectively, the base strip carrying the base plate(s). The sealing strips may be shaped as shown, or with other corrugated or toothed configurations, Figs. 16-20 (not shown). Intermediate studs, e.g. (146), Fig. 8 (not shown) may be provided between panels at corners, and are seated on base plates (164), Fig. 10 (not shown), which interlock with adjacent panels.
Patent GB-1471485-A (GB)
Title: Process for manufacturing glass fibre reinforced synthetic resin laminates
IPC: B29C70/00
Filed: 1974-11-18
Abstract: 1471485 Laminates R HERRMANN and E KUHLE 18 Nov 1974 [16 Nov 1973] 49913/74 Heading B5N A process for the production of a glass-fibre reinforced curable synthetic resin laminated structure comprises sequentially laying down (a) a first preformed plastics film of a synthetic plastics material compatible with the synthetic resin; (b) a first layer of a fluid resin comprising the synthetic resin or a mixture thereof with glass fibres, the first layer being applied to the first film and allowed to remain unaired; (c) a first non-woven glass fibre fabric applied by means of a roller to the first layer; (d) a second layer of a fluid resin composition comprising the synthetic resin or a mixture thereof with glass fibres, the second layer being applied to the first non-woven fabric to impregnate the same; (e) a woven fabric formed from glass-fibre rovings applied to the thus-impregnated first non-woven fabric by means of a roller; (f) a third layer of a fluid resin composition comprising the synthetic resins or a mixture thereof with glass fibres, the third layer being applied to the woven fabric to impregnate the same; (g) a second non- woven glass-fibre fabric applied by means of a roller to the thus-impregnated woven fabric; (h) a fourth layer of a fluid resin comprising the synthetic resin or a mixture thereof with glass fibres, the fourth layer being applied to the second non-woven fabric to impregnate the same, and (i) a second pre-formed plastics film formed of a synthetic plastics material applied by means of a roller to the thus-impregnated second non-woven fabric; each of the films and fabrics being drawn off a supply reel in a continuous drawing operation. In the drawings, polyester films f are supplied from reels 2, non- woven glass fibre fabrics m from reels 3 and woven glass-fibre roving fabric from reel g, the materials f, m and g passing from the reels around guide rollers 5 and on to a work-table 6 constructed so as to vibrate. The resin is supplied by devices 7 each consisting of a storage container 8, an extracting roller 9 and a stripper device 10, a laminating roller 10 being provided downstream of each device 7. After assembly, the laminate is fed by drawing device 11 through shaping section 20 and on to heating section 21 consisting of separately controllable heating zones 22, 23 and 24, the first zone serving to get the structure, the second to dissipate the heat generated by exothermic chemical reaction and the third to temper the structure. After completion of the process, the outer films are detached for re-use. The resin may be a polyester admixed with styrene and a catalyst.
Patent GB-500106-A (GB)
Abstract: 500,106. Polyvinyl resin compositions. FRENKEL, E. W., (trading as FRENKEL, H., [Firin of]). April 29, 1937, No. 12276. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 30, 1937.] [Class 2 (iii)] Compositions for doping fabric-covered aircraft parts contain at least 5 per cent of polyvinyl chloride, and also if desired polyvinyl acetate and polystyrol, dissolved in volatile organic solvents, with additions, in a total quantity not exceeding 25 per cent of the quantity of vinyl derivatives, of one or more of the following: softening agents, chlorcaoutchouc, natural or synthetic resins other than vinyl resins. Dyestuffs and pigments may be added. Specified solvents are acetates of aliphatic alcohols, aromatic hydrocarbons, chlorinated hydrocarbons, or ketones, boiling not higher than 200‹ C., together with small quantities of aliphatic hydrocarbons and alcohols. Softening agents specified are tricresyl phosphate, castor oil, and chlorinated diphenyl. In examples : compositions contain polyvinyl chloride and (1) tricresyl phosphate, ethyl acetate, and toluene; (2) polystyrol, chlorinated diphenyl, acetone, and ethyl acetate; (3) polyvinyl acetate, castor oil, toluene, and benzene. The Specification as open to inspection under Sect. 91 refers to compositions containing polyvinyl derivatives dissolved in volatile solvents of low boiling point, including esters, to which may be added cellulose esters. This subject-matter does not appear in the Specification as accepted.
Patent GB-1246966-A (GB)
Title: Chemical deposition of metal coatings upon glass objects
Inventor: AIKEN JOHN KEMPTON
IPC: C23C18/18
Filed: 1967-11-06
Abstract: 1,246,966. Electroless coating with metals. J. K. AIKEN. Nov. 5, 1968 [Nov. 6, 1967], No. 50254/67. Heading C7F. Glass spheres are given an electroless coating of Ni or Ni alloy by first mechanically or chemically roughening the surface, electrolessly coating with Cu or Ag, and then electrolessly coating with Ni. Prior to coating with Cu or Ag the spheres may be immersed in stannous chloride or hydrazine and then in salts of Au or Pd. The nickel plating may be carried out in contact with Al. The Ni may be subsequently electro-plated with Cd, Cr, In, Au, Pd or Zn. The glass spheres may be etched with HF. An example of an electroless copper plating solution comprises (g/l) cupric sulphate pentahydrate 7À0, cobalt sulphate pentahydrate 1À0, 40% aqueous formaldehyde 26À5 ml., Rochelle salt 68À0, soda ash 6À3, caustic soda 13À5, tetrasodium e.d.t.a., 0À5. A Ni solution comprises (g/l) glycollic acid 37À5, boric acid 5À0, caustic soda 14À0, nickel sulphate heptahydrate 35À0, sodium hypophosphite or borohydride 12À5, and ammonia to make pH 5. The spheres may settle down in or pass up through the plating solution or they may be enclosed in fine mesh bags or maintained in suspension on a filter.
Patent GB-1483487-A (GB)
Title: Index-assembly for watch movements
IPC: G04B18/02
Filed: 1974-11-20
Abstract: 1483487 Timepiece regulators ETA A G EBAUCHES-FABRIK 20 Nov 1974 [3 Dec 1973] 50266/74 Heading G3T In a regulator comprising an annular part 1, e.g. for rotation about a balance bearing, and an arm 2 the outer end of which is blanked and bent to form two elements 4, 6 defining an aperture 3 within which the outer turn 10 of a balance spring can oscillate freely when the index is in use, the end portion is bent into a plane parallel to the balance axis and at an angle to a radius of the annular part passing through the aperture 3 so that the parallel edges 11, 12 of the aperture form limiting elements for the spring's oscillation. The end portion is shown in dotted line in Fig. 2 in the position after blanking but before bending. The aperture 3 may be a closed aperture Figs. 4-6 and 8 (not shown) or the limiting elements may form an open fork Fig. 7 (not shown). The end portion may be formed to facilitate adjustment of the spacing of the limiting elements by twisting.
Patent GB-1062090-A (GB)
Title: Door movement restraint means
IPC: H03K3/315
Filed: 1964-12-10
Abstract: 1,062,090. Door holders C. E. SHAW. Dec. 10, 1964 No. 50321/64. Headings E2A and E2X. A door movement restrain means comprises a body 1 having provision for fixing to the floor and an engagement member 4 having provision for fixing to the door the body being provided with a pair of laterally opposed and vertically directed abutments defining an engagement passage in a side of the body the engagement member being releasably retained between said abutments, the arrangement being such that a resilient catch is provided by the engagement of the member 4 with the abutments to hold the door in engagement with the body, said body itself providing a resilient stop for movement of the door. In the construction shown the abutments are formed by the ends of a C section spring 3 which is contained in a recess cut or moulded in the body. The body is cylindrical with a central hole for a screw for fixing it to the floor and the abutments are spaced from the top surface thereof; their vertical extent is greater than the corresponding dimension of the engagement member 3.
Patent GB-1063400-A (GB)
Title: Catalytic purification of exhaust gases
IPC: B01J35/10
Filed: 1965-11-30
Abstract: The catalyst of the parent Specification which comprises a material having catalytic activity in oxidising CO and hydrocarbons supported on a carrier having a surface area greater than 100 sq. in./gm., a pore volume of 0.4 to 0.9 cc./gm. and a pore volume distribution of diameters of 120 to 2000  at least 20% being 600-2000 , is modified in that the carrier has a nitrogen pore volume of 0.3 to 0.4 cc./gm. and a mercury pore volume of 0.4 to 0.8 cc./gm, comprised predominantly of pores having a diameter in excess of 3,500 . Carriers specified are Al2O3, SiO2, SiO2-Al2O3, SiO2-MgO, SiO2-ZrO2,Al2O3-B2O3, SiO2-Al2O3-MgO, AlPo4, MgO, acid-activated clay and bauxite.  Catalytically active materials are MiO2, CoO, MoO3, Fe2O3, NiO, V2O5, Pt, CuO, Cr2O3 and Pd.  Examples describe the preparation of Cu, Cr and Pd on Al2O3.
Patent GB-1216288-A (GB)
Title: Preparation of benzilic acid esters
IPC: C07C69/66
Filed: 1969-10-21
Abstract: 1,216,288. Benzilic acid alkyl esters. YEDA RESEARCH & DEVELOPMENT CO. Ltd. 21 Oct., 1969 [21 Oct., 1968], No. 51593/69. Heading C2C. The invention relates to benzilic acid alkyl esters of a general formula in which R is an alkyl group containing from 1 to 4 carbon atoms, Hal is a chlorine or bromine atom, and n and m are 0 or 1, which comprises continuously passing oxygen or an oxygencontaining gas (particularly air) while stirring through a 10 to 50% by weight solution of the corresponding diphenyl acetic alkyl ester in a polar-aprotic solvent e.g. methyl-formamide, dimethyl-formamide, alpha picoline, pyridine or 2,4,6-trimethyl pyridine at a temperature of from 10 to 30 C. and in the presence of not more than 10 mole per cent, based on the acetic acid ester, of a quaternary ammonium hydroxide of the formula (II) in which R 1  and R 2  are lower alkyl groups containing from 1-6 carbon atoms and R 3  and R 4  are the same or are different and each is a lower alkyl group containing from 1-4 carbon atoms or a phenyl, benzyl or piperidyl group e.g. tetramethyl ammonium hydroxide, trimethyl benzyl ammonium and trimethyl phenyl ammonium hydroxide. In an example oxygen was passed through a solution of methyl bis-4- bromophenylacetate and an aqueous solution of tetramethyl ammonium hydroxide subsequently added to produce methyl-4,4<SP>1</SP>-dibromobenzilate.
Patent GB-1079149-A (GB)
Title: Water supply system
Inventor: TELFORD CARLYLE OWEN
IPC: E03B11/06
Filed: 1965-12-08
Abstract: 1,079,149. Water supplies. MALSBARY MANUFACTURING CO. Dec. 8, 1965, No. 52148/65. Heading E1X. In a water supply system in which water is stored under air pressure in a storage tank, the air is supplied as required to the tank by an air injector having a diaphragm pump coupled to a pipe between a pump supplying water to the tank and the tank so that pulsations in the water supplied through the pipe are transmitted through the liquid column in the branch pipe coupling the pipe to the diaphragm pump to drive the pump.
Patent GB-1482681-A (GB)
Title: Dental anchoring device
IPC: A61C5/00
Filed: 1974-12-03
Abstract: 1482681 Dental anchoring devices A J SMITH 3 Dec 1975 [3 Dec 1974] 52277/74 Heading A5R A dental anchoring device comprises a threaded portion 10 for self-tapping insertion in a bore formed in a tooth understructure, a shank 11, and a weakened neck 16 intermediate the portion 10 and one end of shank 11, for permitting separation of shank 11 from portion 10, the free end of the shank having a flat portion 13 and a part-annular groove 14 whereby the shank can be latched in a latching-type dental handpiece. The shank is of circular cross-section substantially throughout its length. The threaded portion may be formed in two parts (20), (21) Fig. 3, (not shown), connected by a further neck (22) which is weaker than the neck connecting the threaded portion to the shank whereby neck (22) breaks first and the handpiece can be used to insert threaded parts in two bores in the tooth underestructure without reloading being necessary.
Patent GB-1177378-A (GB)
Title: Detergent compositions.
Inventor: FUCHS ROBERT JOSEPH
IPC: C01B25/41
Filed: 1967-11-17
Abstract: 1,177,378. Cleansing materials. FMC CORP. 17 Nov., 1967, No. 52327/67. Heading C5D. A dry-mixed detergent composition having a friability value of no greater than 6% comprises (a) sodium tripolyphosphate produced by heating sodium orthophosphate at a temperature of 300-550‹ C. to produce anhydrous sodium tripolyphosphate, cooling to below 70‹ C. and pro. viding 0À4-8% of water; and (b) at least one of a water-soluble, non-soap organic synthetic anionic or nonionic detergent, sodium silicate, a chloro-cyanuric compound, chlorinated trisodium phosphate, an alkali carbonate and an inert inorganic filler. The polyphosphate is preferably cooled to below 50‹ C. and has a water content of 0À7-4% so as to enable the granular material to be tableted.