baber/WOPTO huggingface dataset:
Patent GB-1201024-A (GB)
Title: Control mechanisms for hydraulic pumps
Inventor: EDGINGTON ROY
IPC: F04B49/08
Filed: 1966-06-23
Abstract: 1,201,024. Fluid-pressure servomotor systems. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept.15, 1967 [June 23, 1966], No.28142/66. Heading G3P. A control mechanism for a swash plate pump and of the kind in which a piston 12 adjusts the swash plate under control of a valve 34 subjected to system pressure has means to keep the driving torque constant, the means comprising first and second members 37, 38 pivotally mounted about mutually transverse axes 39, 40, biasing means 41 acting against the first member, means 43 responsive to the delivery pressure of the pump acting against the second member to actuate the valve 34, and a rod 46 connected to the piston and carrying balls 47 disposed between the first and second members. Changes in the swash plate angle due to movement of the piston 12 thus cause the mechanical advantage of the pivotally mounted members 37, 38 to be altered so that the spring 41 applies a different closing pressure on the ball 34. A pipe (not shown) connects the ball with an outlet 31 below the piston 12 which is loaded by a spring 23 and provided with a flow-restricting orifice 16. A spool valve 19 coupled to a manual control rod 22 may open ports 20, 27 to allow liquid to flow into or out of the space below the piston 12 to cause adjustment of the latter. A further valve (not shown) responsive to system pressure controls the piston 12 while the valve 34 remains closed if the balls 47 move below the position of the axis 39 due to reversal of the swash plate.
Patent GB-1000554-A (GB)
Title: Improvements in and relating to electrical plug and socket connectors
Inventor: TAYLOR DEREK
IPC: H01R13/193
Filed: 1960-08-15
Abstract: 1,000,554. Two-part couplings. McMURDO INSTRUMENT CO. Ltd. Nov. 15, 1961, No- 28158/60. Heading H2E. A socket 5 for a multi-contact plug-andsocket connector comprises a body 6 having in one face 7 recesses 8 partly occupied by contactmembers 11 into which plug pins are inserted by first positioning them in the unoccupied parts of the recesses and subsequently moving them laterally to engage contacts 11. Each member 11 consists of a flat portion 12 held in a slot 10, and a slotted portion forming two arms 13 which are bent over to rest on side-wall projections. 9. Locating pins and recesses may be provided on the plug-and-socket bodies, and a cam and lever assembly may be used to move the co-operating contacts into engagement.
Patent GB-607709-A (GB)
Title: Improvements in or relating to socket assemblies
IPC: F16C11/06
Filed: 1945-10-25
Abstract: 607,709. Ball-and-socket joints; stud-andsocket fastenings. THOMPSON PRODUCTS, Inc. Oct. 25, 1945, No. 28159. Convention date, May 18. [Classes 44 and 65 (ii)] A socket assembly for a ball-and-socket joint comprises a pair of elongated members 10 and 13 formed at an end with a pair of rigid, semi-spherical seat portions 12 and 14 adapted to surround substantially completely the spherical head of a stud 19, except for a circular opening 15 for the passage of the stud shank. The members, one at least of which is springy. are interconnected at a distance from the seats, the arrangement being such that the seats are clamped around the stud head. As shown, the member 10 is rod-shaped and the member 13, which is springy .and strip-shaped, comprises a pair of opposed loops 17 and 171 and an extension 20 slotted to permit of its being arranged in serpentine manner upon the member 10. In a modification, the members comprise flat portions connected together by a rivet. In a further modification a pair of springy members, which are of shallow channel shape in cross section, are riveted together and formed at their respective ends with a spherical socket and a cylindrical socket adapted to receive a rod-like member. In vet a further modification a pair of springy, strip-like members are riveted together and formed at each end with a spherical socket.
Patent GB-333774-A (GB)
Title: Improvements in and relating to alloys
IPC: C22C38/16
Filed: 1929-05-30
Abstract: 333,774. Digby, W. P. May 30, 1929. Divided on 322,216. Alloys.-An alloy comprises 25-45 per cent of copper, 5-15 per cent of nickel, and the remainder iron, with or without an addition of chromium up to not more than 20 per cent of the iron content. The constituents may be melted in a gas, coke, or oil fired furnace, and the molten product finished in an induction furnace; or the whole operation may be carried out in the induction furnace. Small amounts of manganese may be added five minutes before pouring, and a deoxidant such as magnesium just before pouring.
Patent GB-519937-A (GB)
Title: Improvements in or relating to panic bolts or emergency exit fastenings
IPC: E05B65/10
Filed: 1938-09-29
Abstract: 519,937. Panic bolts. ADAMS & SON, Ltd., J., WEBBERLEY, J. A., KELTING, G., and READE, C. Sept. 29, 1938, No. 28351. [Class 44] A panic bolt operated by depression of the crush-bar comprises upper and lower bolts 4 slidably guided in a casing 1 which houses operating mechanism comprising a disc or crossbar 2 pivotally connected at 6 to links 5 pivoted to the bolts at 7. Rotation of bar 2 to withdraw the bolts is effected by a lever pivoted at 17, its outer depending end 12 having trunnions 14 which pivotally engage one end of a right- or left-hand crush-bar 15, its inner end having a recess 10 engaging a pin 9 on the disc or on a lateral arm rigid with bar 2. The other end of the crush-bar, which is cranked as shown, is pivoted in a bracket 16. A catch 22 retains arm 12 in its depressed bolt-release position. When the bolts are shot, links 5 occupy a dead-centre position to prevent withdrawal of the bolts except by the crush-bar. A blade-spring 20 co-operates with arm 11 to prevent accidental movement of the crush-bar from its normal raised position. A modification is described in which withdrawal of the bolts may be effected by an outside handle which can be rendered ineffective by a key-lock. The spindle of the bar 2 extends through the door and carries a disc with a pin co-operating with a mutilated disc rotated by the handle to provide a lost motion connection so that the bolts may be withdrawn by the crushbar although the handle is locked. The lock bolt co-operates with projections on the muti-. lated disc to limit its movement to less than that required to retract the bolts.
Patent GB-1078878-A (GB)
Title: Improvements in or relating to the conveyance of sheets of glass
IPC: F16C13/00
Filed: 1966-06-24
Abstract: In order to avoid damage to sheets of glass heated to softening temperature prior to tempering or enamelling, they are transported on rollers some at least of which are provided with a resilient facing of fibrous refractory material, e.g. de-alkalinized glass or fibres prepared by fiberizing fused silica.  The fibres are woven or, preferably, braided or knitted, and may be wound helically on the rollers or formed as a sheath so as to avoid breaks, overlaps or seams.
Patent GB-603683-A (GB)
Title: An improved method and means of shaping sheet-metal under pressure
IPC: B21D22/10
Filed: 1945-10-27
Abstract: 603,683. Stamping; cupping. HELLIWELLS, Ltd., and RANSOM, J. Oct. 27, 1945, No. 28490. Addition to 564,650. [Class 83 (iv)] The means for stamping sheet metal described in the parent Specification is modified by confining the sand or like pressure medium c, contained in the recess in the bolster member a, in an inverted rubber &c. tray b which on application of pressure by the top tool d acts to seal the sand &c. in the bolster. The blank e is held by a pressure ring f. According to the Provisional Specification, the sheet metal is placed within the medium c.
Patent GB-159003-A (GB)
Title: Improvements in aerial systems for wireless signalling
IPC: G01S3/06
Filed: 1919-11-17
Abstract: 159,003. Franklin, C. S., Picken, W. J., and Robb, J. G. Nov. 17, 1919. Directive signalling; duplex signalling. - ln aerial systems such as those described in Specifications 24098/14 and 5783/15, in which a pair of directive aerial systems A, B spaced in the direction of signals is combined with a common receiver C, a plain non-directive aerial is combined with each of the systems A, B so as to give pronounced unidirectional results. In a modification, the radio gonimeter coils are connected in series to the tuning-condenser E, equal condensers H in series with each other being shunted across the condenser E and the point between each pair of condensers H being earthed through the inductance and capacity I, J. A search coil F is coupled to the radio-goniometer coils D<1> - - D<4> and is connected to a tuned circuit as shown. The receiver is preferably midway between the aerial systems. By variously mis-tuning the circuits A, B, K different polar diagrams can be obtained. In one case, reception may be made zero in three controllable directions, and, in another, extreme insensitiveness is obtained within an arc extending 60‹ on either side of the direction opposed to that of the maximum sensitiveness. The invention is stated to be particularly applicable to duplex working and to preventing interference.
Patent GB-771660-A (GB)
Title: Improvements in and relating to band conveyors
IPC: A01D87/02
Filed: 1955-10-06
Abstract: 771,660. Endless-belt conveyers. PIEMONT, G. Oct. 6, 1955 [Oct. 29, 1954], No. 28497/55. Class 78 (1). The framework 1 of a belt conveyer 2 is hinged at 4 to the upper part of an undercarriage mounted on wheels 6, 11, the distance apart of which can be varied. The part 5 consists of two side struts suitably cross-braced and carrying a single wheel 6 between them. Two wheels 11 are mounted in a similarlyconstructed part 7 which is pivoted at 9 to a bracket 10 mounted on the part 5. A cable 12 secured to a yoke 14 fitted on the axle of the wheel 6 is passed round a sheave 15 mounted on the axle of the wheels 11, and over a sheave on the arm 7 to a winch barrel 18. Another cable 22 anchored to the framework 1 is passed over a pulley 23 mounted on the axle of the wheels 11 and round a sheave 25 mounted on the arm 7 to a winch barrel 26. The winches are driven by crank handles 21, 29 through worm gearing. The cables and winches may be replaced by hydraulic or mechanical jacks.
Patent GB-833869-A (GB)
Title: Improvements in couplings for pipes and like members, including bottle closures
IPC: F16L23/10
Filed: 1958-09-05
Abstract: 833,869. Container closures. SMITH, D. Sept. 5, 1958 [April 17, 1958], No. 28539/58. Class 125(3). [Also in Groups XXV and XXVIII] A clamping band for flanged bottle closures comprises two semi-circular surrounding bands 10, 11, Fig. 1, of metal e.g. aluminium, having arcuate arms 12 abutting flanges 14, Fig. 4, and exerting an axial force thereon when the band is clamped in position. Arcuate metal inserts 24, e.g. of steel, having a lower coefficient of expansion than the arms 12 are fitted inside and embraced by the latter so as to positively retard the shrinkage thereof during temperature reduction. As shown in Fig. 5, the inner ends of the inserts may be contained in indentations 26 in the band which provide shoulders 27 to limit any movement of the inner ends away from the flanges 14. The bands are drawn together at each end by a T-bolt 19 of which the head 19a engages a socket 17 riveted to each end of the band 10 and the leg passes through a T- shaped bushing 20, 21 secured to each end of the band 11 by a loop 16 of sheet metal riveted thereto. The bands may be stiffened transversely by ribs 30 pressed radially outward from the bands. A unitary band or a band having a plurality of parts may be used. In a modification, Fig. 7, short bars 27b are welded circumferentially on the inside surface of the bands to restrict movement of the inner ends of the inserts 24b. In a further modification, Fig. 8, the inserts 24c are flat.
Patent GB-636636-A (GB)
Title: Improvements in or relating to refrigerating systems
IPC: F25B43/00
Filed: 1947-10-27
Abstract: 636,636. Refrigerating. LIGHTFOOT REFRIGERATION CO., Ltd., and SINCLAIR, W. R. Oct. 27, 1947, No. 28635. [Class 29] In a refrigerating system, the level of liquid refrigerant in a vessel 1 is indicated or controlled by a thermostat 4 having a bulb 4a located in a chamber or pipe 2, 2a, 2b extending horizontally from the vessel 1 above the normal level of liquid so as to enclose a pocket of stagnant gas at a temperature greater than that of the gas above the liquid in the vessel 1, the thermostat 4 actuating electrical means when liquid refrigerant flows into the chamber for the operation of control means, such as a valve or switch and/or warning devices. The bulb 4a may be located in a pocket 2c and may be warmed by atmospheric air, by an electric heater or by heat exchange with warm refrigerant liquid or gas. The pipe 2 may be in the form of a loop communicating at each end with the vessel 1, the bulb 4a being located in the bend of the loop. The vessel 1 may communicate with an evaporator, a float chamber and a compressor suction port thus acting as a separator chamber. The vessel 1 may be enclosed by insulation 3.
Patent GB-655748-A (GB)
Title: Improvements in or relating to a method of making a fibre-forming copolymer, and to the production of fibres therefrom
IPC: C08F20/50
Filed: 1948-11-04
Abstract: A fibre-forming copolymer is made by heating 75 to 97 per cent of acrylonitrile, 2 to 18 per cent of methacrylonitrile, and 1 to 10 per cent of vinyl acetate in aqueous emulsion containing an emulsifying agent.  Emulsifying agents specified are sodium stearate, potassium laurate, ammonium oleate, sulphonated mahogany soap, rosin soaps, salts of sulphonated hydrocarbons, dialkyl sodium sulphosuccinates, salts of partial esters of sulphuric acid and high molecular weight alcohols, stearyl dimethyl benzyl ammonium chloride, ethylene oxide adducts of hexitan monostearates, fatty acids, mercaptans and alcohols, and hexitan monostearates.  Catalysts may be used, such as benzoyl peroxide, tert.-butyl hydroperoxide, acetyl peroxide, hydrogen peroxide, sodium peroxide, isopropyl percarbonate, sodium perborate and sodium persulphate.  These catalysts may be activated with triethanolamine or sodium bisulphite.  Fibres may be formed by dry-spinning or by extruding a solution of the copolymer into water, aqueous brine, glycerine, glycol, ethanol or methanol, which may contain wetting agents such as sulphonated hydrocarbons and sodium alkyl sulphates.  Solvents specified are dimethyl formamide, 1-nitro-betanaphthol, N-isopropyl-N-cyanmethyl formamide, N-formyl morpholine, epsilon-caprolactam, ethylene thiocyanate, dimethyl sulphone, N,N,N1,N1-tetramethyl mesaconamide, tetramethylene sulphoxide, butadiene cyclic sulphone, 1,2,3-tricyano propane, succinonitrile, and cyanoacetamide.  These solvents may be admixed with commoner solvents such as acetone, cyclohexanone, ethyl acetate and methyl ethyl ketone.  The physical properties of the fibres are improved by stretching, followed by heat treatment at 90 DEG  to 180 DEG  C.
Patent GB-861764-A (GB)
Title: Improvements in autocycle transmissions
IPC: B62M25/00
Filed: 1957-07-25
Abstract: 861,764. Cycle driving gear. ATELIERS DE LA MOTOBECANE. July 25, 1957 [July 25, 1956], No. 28682/60. Divided out of 861,763. Drawings to Specification. Classes 79(2) and 79(3). An autocycle having separate chain transmissions from a motor and from pedals in which the rear wheel axle carries a sprocket with freewheel driven by the pedals and in addition the final chain wheel of the motor transmission has an arrangement for disconnecting the final chain wheel from the axle so that the motor transmission may remain entirely at rest when the autocycle is driven by the pedals. The subject-matter is also described in Specification 861,763.
Patent GB-1017669-A (GB)
Title: Process for producing ª-propiolactone polymers
IPC: C08G63/82
Filed: 1962-07-26
Abstract: Poly-(beta-propiolactone) is made by contacting beta-propiolactone with a sodium, potassium or zinc salt of an oxyacid at -20 DEG  C. to +80 DEG  C. for a time sufficient to produce a polymer having an intrinsic viscosity (measured in chloroform at 35 DEG  C.) of 0.1 to 5.0; the oxyacid being boric, silicic, nitric, nitrous, phosphoric, arsenic, molybdic, tungstic, bismuthic, carbonic, oxalic or formic acid.  The salts may first be heated to remove water of crystallization or to convert them into acid salts.  As an auxiliary catalyst, metal hydrides or organometallic compounds of Na, Mg, Cd, Zn, B or Al may be used.  Polymerization may be effected in the presence of an inert organic liquid.  The polymers are soluble in chloroform, dimethylformamide and formic acid and are useful for making films.
Patent GB-407892-A (GB)
Title: Improvements in adjusting devices for a pair of objectives of binocular microscopes
IPC: G02B21/20
Filed: 1933-10-18
Abstract: 407,892. Microscopes. ZEISS, C., [firm of], Carl-Zeiss-Strasse, Jena, Germany. Oct. 18, 1933, No. 28780. Convention date, Oct. 22, 1932. [Class 97 (i).] To facilitate adjustment of a pair of objectives of a binocular microscope, the carrier for the objectives is mounted on the microscope body, or on the objective changing device when such device is used, so as to be rotatable about an axis bisecting the angle between the axes of the objectives, and is provided with a disc which is rotatably adjustable about an axis eccentric to the axis of rotation of the carrier, this disc having a diametrical groove into which a pin mounted on the microscope extends eccentrically. The Figures show a microscope having a rotary objective changer c for fourpairs of objectives. Each pair of objectives i is mounted with the objective axes inclined to each other in a carrier g rotatably mounted on a journal e to which it is attached by a screw h. The carrier is formed with a recess in which a disc m is rotatably mounted on a screw n, the disc having a diametrical groove o into which passes a pin p carried by the changer c. To adjust the objectives the screw n is loosened and the carrier is turned about its axis until the plane of the objective axes assumes the correct position in relation to the microscope. After this adjustment the screw n is tightened ; the carrier can then be removed and can be subsequently replaced in its adjusted position by passing the groove o over the pin p. The objectives can be separately adjusted axially with respect to the carrier, and fixed by nuts l.
Patent GB-847397-A (GB)
Title: Production of organo-silanes
Inventor: SLEDDON GEOFFREY JOHN
IPC: C07F7/08
Filed: 1957-09-13
Abstract: Silanes containing methyl and/or ethyl groups are prepared by reacting a siliceous material with an alkali metal halide complex of an organo aluminium halide of the formula MX RA1 Y2, where M is an alkali metal, R is methyl or ethyl, and X and Y, which may be the same or different, are chlorine, bromine or iodine.  By "siliceous material" is meant (a) free silicas, (b) natural and synthetic silicates and industrial residues obtained by the extraction of materials other than silica from natural silicates, and (c) polysiloxanes. Suitable materials are silica gels, fume silicas such as the "Aerosils," diatomaceous earths such as kieselguhr ; bentonite, talc, china clay, albite felspar, olivine, wollastonite, mica, chrysotile asbestos, commercial anhydrous sodium silicates ; polysiloxane oils, resins, gums and elastomers.  The complex may be formed in situ. Suitable reaction temperatures are 150 DEG  to 400 DEG  C. The examples describe the preparation of tetramethylsilane, tetraethylsilane, diethyldimethylsilane, triethylmethylsilane, ethyltrimethylsilane and other ethylmethylsilanes ; and, when using a siloxane containing Ph Si O1,5 and Me2 Si O units, a liquid containing phenyl and ethyl groups attached to the same silicon atom.
Patent GB-1162914-A (GB)
Title: Improvements in and relating to a Signal Generator
Inventor: BOURBIGOT JEAN
IPC: H03B23/00
Filed: 1967-06-22
Abstract: 1,162,914. Frequency analysis. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 22, 1967 [July 1, 1966], No. 28900/67. Heading G1U. [Also in Divisions G4 and H3] A frequency spectrum analyzer used to observe oscillations in gas discharges, comprises a sawtooth generator 8 which is connected to cathode ray tube deflection plates 15 and which is also connected through a function generator 16 to frequency-modulate an oscillator 9 feeding a balanced modulator 10 to which the input signal F is applied. The output of the modulator passes through filter 11, amplifier 12, detector 13, and video amplifier 14 to the cathode ray tube.
Patent GB-1356508-A (GB)
Title: Flame-retardant thermoplastic polymer composition
IPC: C08K5/41
Filed: 1972-06-20
Abstract: 1356508 3,3<SP>1</SP>,5,5<SP>1</SP> - Tetrahalodiphenylsulphone-4,4<SP>1</SP>-diols and ethers thereof MARUBISHI YUKA KOGYO KK and MITSUBISHI PETROCHEMICAL CO Ltd 20 June 1972 [28 July 1971 15 Oct 1971] 28918/72 Heading C2C [Also in Division C3] Tetrahalodiphenyl sulphone derivatives of formula where A 1  and A 2  are hydrogen, C 1-4  alkyl or haloalkyl, or allyl or haloallyl; and X 1 , X 2 , X 3  and X 4  are chlorine or bromine; may be prepared by halogenating 4,4<SP>1</SP>-dihydroxydiphenyl sulphone and optionally etherifying the products. In examples (1) dihydroxydiphenyl sulphone is brominated to form 3,5,3<SP>1</SP>,5<SP>1</SP>-tetrabromo - 4,4<SP>1 </SP>- dihydroxydiphenyl sulphone which is (4) etherified with allyl bromide and the bis-allyl ether, (6) brominated to the bisdibromopropyl ether, (17) brominated and chlorinated to the 4-dibromopropyl-41-dichloropropyl ether and (19) partially brominated; 3,5,3<SP>1</SP>,5<SP>1</SP> - tetrabromo - 4,41 - dihydroxydiphenyl sulphone is reacted with (21) ethylene dibromide followed by allyl bromide to give the 4-allyl-4<SP>1</SP>-bromethyl ether which is (23) brominated to the 4-dibromopropyl-4<SP>1</SP>-bromethyl ether; 3,5,3<SP>1</SP>,5<SP>1</SP> - tetrabromo - 4,41 - dihydroxydiphenyl sulphone is (25) reacted with butyl bromide followed by allyl bromide to form the 4-allyl-4<SP>1</SP>-butyl ether which is (27) brominated to the 4-dibromopropyl-4<SP>1</SP>-butyl ether; and (29) dihydroxydiphenylsulphone is chlorinated and then brominated to form tribromomonochloro - 4,4<SP>1 </SP>- dihydroxydiphenyl sulphone which is (31) etherified with allyl bromide and brominated to the 4,4<SP>1</SP>-bis-dibromopropyl ether. The products are useful as fire retardant additives to thermoplastic polymers of ethylenically unsaturated monomers.
Patent GB-866827-A (GB)
Title: Improved industrial polishing medium
Inventor: BRYANT WILLIAM FREDERICK CURLI
IPC: C11D3/14
Filed: 1958-05-06
Abstract: An industrial metal-polishing composition, preferably in brick or block form, comprises by weight (a) 29% stearic acid or sodium stearate, (b) 20% unfused aluminium oxide (220 mesh), (c) 30% powdered lime, (d) 20% soft white silica, and (e) 1% triethanolamine, and is prepared by melting (a), adding (e) followed by (b) and (d), stirring, and then subsequently adding (c) with stirring.  The mixture, which may be compressed into blocks, may also contain a perfume such as oil of lavender, oil of Cologne, or oil of jasmin in amounts of 0.01-0.5 fluid ozs. per lb.