baber/WOPTO huggingface dataset:
Patent GB-869623-A (GB)
Title: Improvements relating to protective coating on resilient cellular materials
Inventor: TAGGART RICHARD VINCENT
Filed: 1956-10-24
Abstract: A body of resilient cellular material is provided with a protective coating by applying first a cell-sealing layer of a non-cellular rubber composition or other non-cellular flexible composition from an unfoamed aqueous dispersion, and then a surfacing layer of a chlorosulphonated-polyolefine composition from a compounded chlorosulphonated-polyolefine solution.  The body may be of foamed natural or synthetic rubber, foamed polyurethane, resilient expanded polyvinyl resins, or the material comprising fragments of cellular material bonded together described in Specification 869,624.  The cellsealing layer may be applied from a latex of natural rubber or butadiene-styrene copolymer thickened with sodium alginate or sodium carboxy-methyl-cellulose, and when applied to polyurethane is gelled immediately by immersion in a coagulating agent; or when coating expanded vinyl resins the cell-sealing layer may be of a vinyl chloride-ethyl acrylate copolymer.  The surfacing layer may be a chlorosulphonated polyethylene, applied from a solution in an organic solvent such as xylene, which may also contain in solution or suspension a cross-linking agent such as magnesium oxide, and hydrolysing agents such as water in conjunction with phthalic acid and stearic acid.  Pigments may also be included.  The coatings may be applied by brushing, dipping or spraying; alternatively, the first coating may be applied to the walls of the mould in which the cellular article is made.  Heating to effect vulcanisation and cross-linking may take place at any stage.
Patent GB-1311308-A (GB)
Title: Method and apparatus for aircraft guidance
IPC: G01S1/02
Filed: 1970-07-03
Abstract: 1311308 Radio navigation SOC DE FABRICATION D'INSTRUMENTS DE MESURE 3 July 1970 [11 July 1969] 32409/70 Heading H4D In an automatic landing system, particularly for use by a helicopter, a ground transmitter E, Figs. 1, 2 produces a radio wave at 10 to 20 gigahertz which defines a landing path R. A receiver D, Fig. 3, on the aircraft, detects the radio wave and derives therefrom a signal G proportional to the vertical misalignment of the aircraft from path R. A signal L, proportional to the horizontal deviation of the path R, is similarly produced. Accelerometer A V , Radio Sonde S, anemometer V, control T, accelerometer A L , respectively produce:- VZ the vertical velocity component, a gain control dependent on the aircraft's altitude and distance from the transmitter, the indicated airspeed Vi, a control speed Vc, and the horizontal velocity component dV L /dt. The aircraft is vertically controlled by the pitch control H 1 , receiving, via the altitude section P 1  of an automatic pilot P, a signal K 1 G+K 2 dG/dt+K 3 Vz. Coefficients K 1  and K 3  are respectively produced by amplifiers 1 and 3 whilst differentiator 2 produces K 2 dG/ dt. The weighted signals are combined at the input to a limiter 4 used to control the maximum pitch variation to within safe limits. The aircraft is horizontally controlled by a roll control H2 and a course control H3 receiving, via respective roll and yaw auto pilot sections P 2  and P 3 , a signal K 4  L + K 5 dl/dt. The K 4 L and K 5 dL/dt signals from respective amplifier 7 and differentiator 8 are combined at limiter 9 having a safety limit which decreases when the altitude is less than a predetermined value. A pitching altitude control H 4  is fed with a signal K 6 (Vi-Vc) + K 7 dV L /dt from comparator 10 and circuit 11, via maximum safety value limiter 12 and a signal #K 6 (Vi-Vc)dt from integrator 13.
Patent GB-706008-A (GB)
Title: Mop or washleather wringer
IPC: A47L13/142
Filed: 1949-12-19
Abstract: 706,008. Self-wringing mops. LEIGHTON, B. Nov. 6, 1950 [Dec. 19, 1949], No. 32444/49. Class 19 A self-wringing mop comprises a hollow shaft b through which passes a rod a, means comprising a U-shaped bolt d, e, with wing nuts, being provided on one end of the rod and the adjacent end of the shaft for holding respectively the opposite ends of a cloth or washleather and the opposite end of the rod being provided with a handle.
Patent GB-1004373-A (GB)
Title: Polymerisation process
IPC: C08F236/04
Filed: 1963-08-16
Abstract: 4-Methylpentene-1 is contacted with a dehydrogenating catalyst so that partial dehydrogenation to one or more isomers of methylpentadiene-1,3 occurs.  The preferred dehydrogenation catalyst is a mixed chromia/alumina catalyst, preferably 95 to 70% alumina and 5 to 30% chromia also containing an alkali metal nitrate or its decomposition product; other specified catalysts are calcium and nickel phosphates and bismuth phosphomolybdate. The process may be carried out in a inert diluent, e.g. nitrogen at 450-600 DEG  C., with a hydrocarbon LHSV in the range 0.1 to 10 vol./vol., the catalyst having a surface area of at least 50 sq. m./g. and the ratio of hydrocarbon to diluent being in the range 0.1 to 10.0.  In an example, an Al2O3/CrO3/KNO3 catalyst calcined at 550 DEG  C. is used to dehydrogenate a mixture of 4 - methylpentene - 1 (72.9%), 4 - methylpentene-2 (26.2%) and 2-methylpentene 2- and n-hexenes (0.9%) at 550 DEG  C. and an LHSV of 1.33 to give a liquid product of composition: .4-Methylpentene-1.40.1% .4-Methylpentene-2.13.4% .2-Methylpentene-2.8.6% .2-Methylpentene-1.4.0% .Other methylpentenes.6.0% .2-Methyl-1.3-pentadiene.7.5% .4-Methyl-1.3-pentadiene.6.7% .Other C5 and C6 materials.14.2%ALSO:Copolymers are produced by contacting 4-methylpentene-1 with a dehydrogenating catalyst so as to partially dehydrogenate it to one or more isomers of methylpentadiene-1,3 and then contacting the reaction product or a fraction thereof with a polymerization catalyst so as to produce a copolymer of 4-methylpentene-1 and one or more isomers of methylpentadiene-1,3. The polymerization mixture may contain also additional 4-methylpentene-1 and/or one or more isomers of methylpentadiene-1,3 containing 4-methylpentene-1 and one or more isomers of methylpentadiene-1, 3.  The dehydrogenation catalyst may be a mixed chromia/alumina catalyst also containing an alkali metal nitrate or decomposition product thereof.  The polymerization catalyst may be a Friedel-Crafts catalyst, e.g. aluminium chloride, and the copolymerization may take place in an inert diluent.
Patent GB-1277172-A (GB)
Title: Method of making a large integrated circuit
IPC: H01L27/00
Filed: 1970-07-03
Abstract: 1277172 Integrated circuits HITACHI Ltd 3 July 1970 [4 July 1969 15 Oct 1969] 32467/70 Heading H1K [Also in Division G4] A method of making a large scale integrated circuit comprises the steps of forming a plurality of spaced apart sub-circuit units in a semiconductor wafer, providing a conductive layer lattice formed around and spaced from each of the said units and etching it to form a plurality of conductive strips, covering these strips with an insulating film, forming openings in this film according to a predetermined pattern to expose the surface of the strips where required, and forming interconnection lines between these strips and the electrodes of the sub-circuit units. The spacings between the spaced apart subcircuit units may be constant, or irregular as when larger spacings are allowed around more complex sub-circuit units. Further to ensure that connections are formed between good units only, the units may be tested before connection, bad units not being used and remaining unconnected. Prior to interconnection, the subcircuit units can be modified if required. An example of the construction of a binary adder by the method is described.
Patent GB-1526392-A (GB)
Title: Lockers
IPC: A47B55/00
Filed: 1975-08-20
Abstract: 1526392 Lockers LINK 51 Ltd 20 Aug 1975 [24 July 1974] 32611/74 Heading A4B An integrally moulded locker shell 10 is made in a number of heights A, 2A, 3A and so on - the shell shown being 2A - and the shells may be stacked and closed by moulded plastics doors of height A, 2A, 3A and so on in any selected combination - door 18 shown is of height A. To enable doors of various heights to be employed shelves with hinge means such as 26 are also made from moulded plastics.
Patent GB-1198052-A (GB)
Title: Polymer Dispersions
Inventor: CLARKE MICHAEL RAYMOND
IPC: C08F2/08
Filed: 1966-07-20
Abstract: 1,198,052. Polymer dispersions. IMPERIAL CHEMICAL INDUSTRIES Ltd., and BALM PAINTS Ltd. 12 July, 1967 [20 July, 1966], No.32626/66. Addition to 1,143,404. Headings C3P, C3Q and C3R. Stable dispersions of particles of synthetic polymer in inert organic liquid in which the polymer is insoluble are prepared by dispersing preformed particles of the polymer in the liquid in the presence, in solution in the liquid, of a stabilizer containing polar groups, the disperse polymer being one containing polar groups capable of entering into strong specific interaction with polar groups in the stabilizer so as to cause the stabilizer to be bonded to the polymer particles and provide around them a stabilizing steric barrier at least 12 Angstroms thick. The stabilizer may be polymeric or non- polymeric. The polar groups in the disperse polymer can be, or can be derived from, polar groups originally present in a monomer used in the preparation of the polymer; or they can be, or can be derived from, polar groups originally present in an initiator or dispersion stabilizer used in the preparation of the polymer. Examples illustrate the preparation of dispersions of polyvinyl chloride and polymethyl methacrylate in white spirit; polyvinyl fluoride and polyvinylidene fluoride in isophorone; polyethylene in n-butyl acetate; polyvinylidene fluoride in #-ethoxy-ethyl methacrylate; and, in aliphatic hydrocarbon fractions, polyvinyl chloride, polyvinyl fluoride, polyvinylidene fluoride, polymethyl methacrylate, polyacrylonitrile, polystyrene, polyvinyl acetate, vinyl chloridevinyl acetate-maleic acid copolymer, polytetrafluoroethylene, polyethylene, nylon, polyethylene terephthalate and chlorinated rubber. The stabilizers used in the examples are stearyl methacrylate / dimethylaminoethyl methacrylate copolymer, N,N-dimethyl-octadecylamine, the reaction product of methyl methacrylate/ ethyl acrylate / dimethylaminoethyl methacrylate copolymer and propane sultone, and various other (meth)acrylate copolymers, some of which are reacted with propane sultone, ethyl bromide, dimethyl sulphate, sulphuric acid or phosphoric acid, and sodium and potassium salts thereof, and the reaction product of poly-12-hydroxystearic acid with dimethylaminoethanol and propane sultone.
Patent GB-787294-A (GB)
Title: Improvements in or relating to atomising and spraying apparatus
IPC: A01M13/00
Filed: 1955-11-15
Abstract: 787,294. Generating combustion products under pressure. HEIZMOTOREN GES. Nov. 15, 1955 [Nov. 15, 1954], No. 32653/55. Class 51 (1). [Also in Group XXIX] A device of the kind in which spray liquid is introduced at 4 into the pulsating exhaust gas flow fed through an exhaust tube 3 surrounded by a jacket tube 11, 12, 13 which does not extend beyond the end of the tube 3, is characterized in that at least one auxiliary exhaust tube 24 extends in the direction of the exhaust tube outlet and opens into the space between the exhaust and jacket tubes. The tubes 3 and 24 extend from the opposite ends of a combustion chamber 1 which is fed via a throat 6 with fuel from a carburetter 7 and air through a non-return valve 8. An outer jacket 16, 17, 18 with a closed perforated end 27 is provided. In operation, the parts 1, 2 and 3 form a resonator, and when the fuel is ignited by an ignition device 10 pulsations of gas in the tube 3 entrain the liquid fed through an annular slot 5 and spray it. Gas from the auxiliary exhaust tube draws cooling air into the outer jacket 16-18, and this air flows forwardly through the inner jacket space 15. Additional cooling air is drawn into the device through apertures 26, 28 and 29. The stream of gas charged with liquid may serve for the production of flames.
Patent GB-800479-A (GB)
Title: Improvements relating to printed or lacquered aluminium foils
IPC: B05D7/14
Filed: 1955-11-15
Abstract: A composition comprising a vinyl resin, phosphoric acid, chromic acid, and an aliphatic or aromatic hydroxy acid or ester thereof, or a mixture of two or more such acids or esters, in an organic solvent, is used as an etch primer for application to an aluminium foil before lacquering or printing.  The composition given by way of example contains polyvinyl butyral and citric acid in methylethyl ketone-ethyl alcoholbutyl alcohol.  Many examples of other hydroxy acids are disclosed.ALSO:An etch primer for application to aluminium foil before lacquering or printing contains, in an organic solvent, a vinyl resin, phosphoric acid, chromic acid, and an aliphatic or aromatic hydroxy acid or ester thereof or a mixture of two or more such acids or esters.  The primer given by way of example contains polyvinyl butyral and citric acid in methylethyl ketoneethyl alcohol-butyl alcohol.  Many examples of other hydroxy acids are disclosed.
Patent GB-966649-A (GB)
Title: Crop deflector means for a forage harvesting machine
Inventor: BRADE JAMES NEVILLE
IPC: A01D43/08
Filed: 1962-08-25
Abstract: 966,649. Forage harvesters. HARRISON, McGREGOR & GUEST Ltd. Aug 25, 1962, No. 32729/62. Heading A1F. [Also in Division B8] A crop deflector 18 for the outlet end of a discharge shoot 13 of a forage harvester comprises a plate 19 having side walls 20 with outwardly extending flaps 21 and a channel member 23 welded to the plate 19 and adapted to support the deflector for pivotal movement about a vertical stud attached to a bracket 10 which is secured to the shoot 13 by bolts 11 for pivotal movement about a horizontal axis. The stud is capped by a threaded bar 17 to which is attached a cable 34 operation of which moves the deflector and bracket about the bolts 11 against the action of a tension spring 30. A further cable 29 secured to one side of the device operates to pivot the deflector about the stud against the action of a torsion spring 25.
Patent GB-1071189-A (GB)
Title: Improvements relating to the autothermic production of gaseous fuel from liquid fuels
Inventor: WHEELER WILLIAM HENRY
IPC: C01B3/36
Filed: 1964-08-11
Abstract: An autothermic method of gasifying a liquid fuel comprises ejecting a central atomized jet of oil and water simultaneously with one or more surrounding jets or sprays of atomized oil/air mixtures.  The oil/water atomizer may be of conventional concentric nozzle type, or of the swirl chamber type described in Specification 1,067,717.  An annular chamber may surround the atomizer, oil and air being separately tangentially supplied to the chamber and ejected as a divergent conical spray, see Fig. 2 (not shown).  The air and water may be preheated by passage respectively through a spiral chamber and a coil about a flame tube.
Patent GB-138069-A (GB)
Title: Improvements in or relating to plaiting machines
IPC: D04C3/00
Filed: 1919-12-31
Abstract: 138,069. Walter, E. Jan. 11, 1919, [Convention date]. Braiding-machines.-The spindles are divided into two sets h<1>, h travelling in opposite directions in sinuous guide-grooves a<2> and slots a<1> around the centre of the machine. The spindles h' carry larger yarn reels than usual, this being rendered possible owing to the spindles h acting merely as guides for yarn coming off a lower set of reels g mounted on arms f of a central driver d. The yarn-carrying capacity of the machine is thus increased. The yarn is drawn off each reel g at a point which is as far below the guide-plate a as the braiding-point o is above the uppermost point of the spindle h.
Patent GB-781459-A (GB)
Title: Flashlight-synchronising device for photographic focal plane shutters
IPC: G03B9/70
Filed: 1953-11-25
Abstract: 781,459. Photographic flashlamp synchronizing devices. AGFA CAMERA-WERKE AKT.-GES. Nov. 25. 1953 [Jan. 8, 1953], No. 32785/53. Class 98(1) A flashlamp synchronizing device for a focal plane shutter comprises an adjustable timing member which carries a pair of flash circuit contacts, one of which is movable against spring-loading from a position in which it lies adjacent the other contact and a switch member adapted to be driven by a roller of the shutter, the switch member having an element in the path of which the movable contact is located by its spring so that on release of the shutter the switch element moves the movable contact against the other contact while in setting the shutter, when the roller and switch member rotate in the direction opposite to that on release, the switch element moves the movable contact against its spring to a non-circuit making position. As shown, a timing disc 1 on a freely rotatable hollow bush (not shown), adjusted by a knob 2 co-operating with a flashlamp lag scale carries a fixed resilient contact 5 and a resilient contact 4 pivoted on the disc at 6 and urged anticlockwise by a spring 9 against a stop 10, springs 12, 11 respectively determining the normal positions of the contacts relative to the disc surface. When the shutter is released, one shutter roller 15 rotates anticlockwise through gear 16 a gear 14 on a shaft 13 coaxial with the disc 1 so that a pin 17 on the gear depresses the contact 4 against the contact 5 to complete a flashlamp circuit through leads 7, 8 which are led away through the hollow spindle of the disc 1. On re-setting the shutter, the roller 15 and hence the pin 17 move in the direction opposite to that on release and to avoid a further closure of the circuit. the contact 4 is formed to present a leading bevel 4b to the pin so that the contact is moved clockwise whereby the pin passes it without moving it into engagement with the fixed contact.
Patent GB-860574-A (GB)
Title: Improvements in or relating to pressure actuated valves
IPC: F16K11/07
Filed: 1958-10-14
Abstract: 860,574. Fluid-pressure servomotor systems; valves. BENDIX CORPORATION. Oct. 14, 1958 [Oct. 31, 1957], No. 32796/58. Class 135. [Also in Group XXXIV] A valve device, adapted to be interposed in an hydraulic circuit of an automobile wherein a pump A continually circulates fluid for actuating brakes F and for power assisting the steering through a valve D of the open centre type which permits flow therethrough to a reservoir B in all positions of this valve, includes a back pressure producing valve, C2, actuated by two fluid-pressure motors for throttling without interrupting the flow of fluid in the circuit, one of said motors, which is at all times energized by the back pressure, acting to reduce said back pressure, whilst the other motor, when energized, acts to increase the back pressure until said back pressure exceeds the pressure in said other motor by a predetermined amount, said other motor being adapted to be energized by fluid pressure from an accumulator E connected to the circuit upstream of the back pressure producing valve C2 through a charging flow restriction 108, Fig. 4, so that when accumulator pressure is communicated to said other motor fluid flows from the portion of the circuit upstream of the back pressure producing valve to the accumulator at a predetermined fixed rate. The valve C2 comprises a doubleacting piston valve member 78 having a land 83 throttling the flow through an opening 90 to the open centre valve D. One end of this piston is subject always to the back pressure through a passage 112 therein whilst the other end is energized by accumulator pressure through passages 94, 104, 122 and a ball pilot valve 142 on fall of this pressure below a predetermined value. A loading spring 118 of the valve C2 predetermines the excess of back pressure over accumulator pressure at which charging takes place through a check valve 102, Fig. 4. On a predetermined rise of accumulator pressure, the energizing pressure on the right-hand end of piston valve 78 is vented through a second ball valve 142. As further shown, the device includes an operator's control valve C1 for actuating the brakes F, this valve comprising a " dumbell " valve member 32 seating on a fixed seat 18 and on the end of an exhaust passage 38 in a piston 36 movable by an operating rod 48 to place the brakes either in communication with the accumulator E or with an exhaust chamber 10 connected to the reservoir B.
Patent GB-372278-A (GB)
Title: Improvements in and relating to exchanging device for the shuttles of looms with upper or under stroke
IPC: D03D45/34
Filed: 1930-10-31
Abstract: 372,278. Looms with automatic weft replenishing mechanism. SCHMIDT, P., 42, Wilhelmstrasse, Sorau, Germany. Oct. 31, 1930, No. 32826. Convention date, March 22, 1930. Void [Published under Sect. 91 of the Acts]. Addition to 334,812, [Class 142 (iii), Looms, Weft supplying &c. in]. [Class 142 (iii).] The mechanism for raising and lowering the front wall of the shuttle-box, described in the parent Specification, is modified and applied to a loom in which the ejection of a spent shuttle and the insertion of a fresh shuttle are effected at the same side of the batten, the fresh shuttles being supplied from a single or a multi-colour magazine. The double lift cam 10 for moving the box front 15 is mounted on the stroke shaft 41a and by its action the spent shuttle ejecting pins 47 are operated.
Patent GB-823728-A (GB)
Title: Improvements in or relating to two-speed axle systems for vehicles
Inventor: BEADY THOMAS REDVERS
IPC: F16H37/00
Filed: 1956-10-29
Abstract: 823,728. Change-speed gear. EATON AXLES Ltd. Oct. 11, 1957 [Oct. 29, 1956], No. 32887/56. Class 80 (2). In a pre-selector two-speed axle on a vehicle (e.g. as described in Specification 813,031) an electrically-controlled two-speed corrector gear 15, in the flexible drive of the usual transmissiondriven speedometer 18, has its ratio changed by a spring-loaded switch 12 mechanically operated by the axle shift fork 2. The latter is shifted in either direction by a screw-shaft 10 driven by a driver-controlled reversible electric motor (or pneumatic or hydraulic device) and acting through a torsion spring 7 which is effective to establish a preselected shift only on reduction of engine torque. The two-speed speedometer corrector gear 15 comprises an input ring gear 16, output planet carrier 22, and a reaction sun which for direct drive is clutched at 25 to the planet carrier by a spring-loaded armature 27 splined on the sun, or for reduced drive, is held by energizing a magnet winding 30 through the switch 12 closed by movement of the axle-shift fork 2 to reduced drive position.