baber/WOPTO huggingface dataset:
Patent GB-1460731-A (GB)
Title: Spark ignition systems for internal combustion engines
IPC: F02P3/045
Filed: 1973-02-10
Abstract: 1460731 Ignition systems LUCAS ELECTRICAL Ltd 21 Dec 1973 [10 Feb 1973] 6687/73 Heading F1B A spark ignition system for an internal combustion engine includes a switching device 33 in series with the primary winding 34 of an ignition coil 35 and means for turning the device 33 on to store energy in the winding and off to produce a  spark and comprises engine driven switch means (contact breaker 16) and a switching circuit controlled by the switch means and coupled to the switching device, the switching circuit being biased to a first state in which it turns the switching device off but being driven to a second state when the, switch menas 16 closes, the switching circuit then turning the switching device on and the switching circuit returning to its first state in normal operation when the switch means re-opens. A capacitor 19 couples the switch means to the switching circuit and is arranged so as not to become fully charged in the period during which the switch means is closed in normal engine operation but to become fully charged if the engine stalls with the switch means closed, the switching circuit reverting to its first state when the capacitor is fully charged so as to restrict the on-time of the switching device in an engine-stalled condition to a level greater than the maximum normal on-time of this device.
Patent GB-356133-A (GB)
Title: Improvements in and relating to hydraulic control apparatus
IPC: B30B15/16
Filed: 1930-02-28
Abstract: 356,133. Press working valves. McCULLOUGH, W. E., Kenosha, Wisconsin, WOKECK, E. 0., 6452, South Hoyne Avenue, Chicago, and WHITE, E. A., 2939, 73rd Street, Kenosha, Wisconsin, both in U.S.A. Feb. 28, 1930, No. 6688. Convention date, April 24, 1929. Void [Published under Sect. 91 of the Acts]. [Classes 69 (ii) and 135.] Steam or air valves or working valves for hydraulic presses are actuated hydraulically under the control of cam-operated valves. In the form shown for controlling the inlet and exhaust of chambers A, B, C, Figs. 2 and 19, of a hydraulic press, a valve block 300 contains inlet valves 64 .. 67, Fig. 3, exhaust valves 61, 62, 63, and non-return valves 68, 69. The inlet and exhaust valves are opened against spring action by liquid acting on plungers 171, Fig. 6 ; each plunger works in packing washers 241, 251 separated by a plate 800, grooves being provided in the plate through which leakage passes to the exterior. The plungeroperating liquid passes through conduits 151 .. 157 under the control of valves 51 .. 57 operated by cams on a shaft provided with a lever 131 disposed over an indicating dial 222. The valves 51 .. 57 are disposed in a block 58, and each comprises balls 106, 107, Fig. 10, separated by a grooved and perforated rod 102, and acted on by a spring- pressed plunger 110 and a cam-operated plunger 43.
Patent GB-163522-A (GB)
Title: Improvements in turbines
IPC: F01D1/02
Filed: 1920-03-05
Abstract: 163,522. Shaw, J. March 5, 1920. Radial-flow (bladed) type. A turbine has a rotor 7 with a number of spiral passages formed by webs 14 running from the circumference to the centre of the rotor. These passages are divided into a number of expansion chambers 17 by perforated plates 16, the perforations in successive plates being in staggered relationship and increasing in area towards the centre. The stator has an annular steam chamber 4 with passages 8 opening on to the periphery of the rotor. The steam enters by the pipe 5, passes through the stator passages into the spiral passages in the rotor, where it is expanded through the perforations from chamber to chamber, and leaves by the central passage 10.
Patent GB-1518736-A (GB)
Title: Separation and recovery of ethylbenzene form c8 aromatic mixtures using rubbidium-x sieves
IPC: G01N30/88
Filed: 1976-02-20
Abstract: 1518736 Zeolites EXXON RESEARCH & ENG CO 20 Feb 1976 [7 March 1975] 06778/76 Heading C1A [Also in Division C5] A rubidium-exchange zeolite is formed by contacting a sodium-form Type X zeolite with an aqueous solution of an Rb salt to at least partially exchange the Na ions, and is then dehydrated by heating.
Patent GB-224790-A (GB)
Title: Improvements in or relating to bearings
IPC: B61F17/08
Filed: 1924-03-17
Abstract: 224,790. Phee, E. H. March 17, 1924. Capillary-action lubricators.-An axle box for railway vehicles &c. has a bearing block 14 with one or more recesses 50 extending into the body thereof serving .as auxiliary lubricant reservoir to accumulate and distribute to the bearing lubricant supplied by absorbent material held yieldingly against the underside of the journal 10. The recesses 50 which are filled with fibrous material, such as wool felt, are preferably arranged as shown in Fig. 3 and they are connected to the sides of the block 14 by grooves 55, 56. The lubricating pad comprises a plurality of wool felt layers 30 on a curved plate 32 supported by springs 34 on a frame 40 resting on the bottom of the lubricant reservoir 18. The lowest wool felt layer is in two parts the adjacent sides 45 passing through a central aperture in the plate 32 and resting on the frame 40. The ends of the top layer dip freely into the reservoir 18.
Patent GB-330513-A (GB)
Title: Improvements in aircraft employing rotative wings or supporting surfaces
IPC: B64C27/02
Filed: 1929-03-04
Abstract: 330,513. Cierva Autogiro Co., Ltd., and La Cierva, J. de. March 4, 1929. Machines with rotary wing systems; controlling; starting. -The forward propelling means of an aircraft having freely rotative wings are mounted so that normally their r total thrust has substantially no moment about the centre of gravity. In a machine having a fixed engine the axis of the tractor propeller if produced would pass through the centre of gravity. Fig. 2 illustrates a machine in which the engine 35 is rockably mounted on trunnions 38<x> to allow of varying the, axis of thrust to positions above and below the centre of gravity. Control is effected by sector-and-pinion gear operated from a chainwheel 45, which, as shown, is provided with a hand-wheel 46 but may be mounted on or geared to the control cross-shaft operating the elevators. According to the Provisional Specification the engine may be tilted to cause the; slipstream therefrom to pass through the disc area of the rotative wings 32 for starting them in rotation.
Patent GB-373677-A (GB)
Title: Improvements in the control of dynamo-electric machines connected in parallel or series
IPC: B60L7/22
Filed: 1931-03-06
Abstract: 373,677. Control of D.C. motors. GUY MOTORS, Ltd., Fallings Park, Wolverhampton, and STEVENS, W. A., Castlemaine, London Road, Maidstone, Kent. March 6, 1931, No. 6957. [Class 38 (iii).] Regenerative and non- regenerative braking.-Two compound-wound traction motors 1, 2 may be connected in series by closure of switch 11 or in parallel by closure of switches 12, 13, and during braking have their series fields 3, 4 and 5, 6 reversed and crossconnected. Shunts 9, 10 in parallel with the series field are employed during regenerative operation, and are in series with variable resistances (not shown) that control the series fields during rheostatic braking. Variable starting resistance 14 and shunt field resistance 15 are provided. Specifications 278,073, [Class 38 (iii), Electric motor control systems &c.], 341,679, and 360,099 are referred to.
Patent GB-589214-A (GB)
Title: Improvements in or relating to machines for straightening rod, wire or the like
IPC: B21F1/02
Filed: 1945-03-20
Abstract: 589,214. Straightening. CHAIN DEVELOPMENTS, Ltd., and SMITH, W. March 20, 1945, No. 6974. [Class 83 (iv)] Rod-straightening apparatus comprises grooved rollers 21 carried in a fixed frame 9 co-operating with grooved rollers 15 in a frame adjustable about a pivot 11 by a screw 30. The rod is fed against a stop 35 from a reel 2 by electromotors rotating the rollers 21 and is severed by a treadleactuated guillotine blade 34.
Patent GB-373682-A (GB)
Title: Electro-dynamic device for loud speakers and the like
IPC: H04R9/02
Filed: 1931-03-09
Abstract: 373,682. Sound-reproducing devices. CROSS, A. F., 231, Park Road, Oldham. March 9, 1931, No. 7197. [Class 40 (iv).] An electrodynamic device for use in connection with loud-speakers, gramophone pickups and like sound-reproducing devices comprises laminated core structures A, A, Fig. 1, carried by a permanent magnet B and surrounded by coils C adapted to receive the varying currents so that the flux is diverted in each core structure in the same direction, to the right or left path, according to the direction of the varying current received. Two movable closed metallic conductors M, each of one turn closed upon itself, are fixed together and suspended so as to be free to move in the direction along the line L .. L. F and F<1> show alternative arrangements of fixed metallic conductors, the arrangement being such that the movable and fixed conductors M and F or F<1> constitute the secondaries of a transformer of which the coils C serve as the primary coils. Fig. 2 shows a modified construction employing an electromagnet, the energizing coils B<1> of which surround like poles facing the central arm of the laminated core structure A which is surrounded by the movable closed conductor M and the varying current coils C. The fixed closed conductors F may be arranged as shown or a single conductor embracing both poles, Fig. 3 (not shown), may be employed. The sleeve M may be of copper or partly of copper and partly of iron.
Patent GB-752264-A (GB)
Title: Forced flow steam generators in which the steam is generated at critical or supercritical pressure
IPC: F22B29/06
Filed: 1954-03-12
Abstract: 752,264. Critical pressure steam boilers. SULZER FRERES SOC. ANON. March 12, 1954 [March 14, 1953], No. 7207/54. Class 123(2). In the operation at critical or supercritical pressure of a once-through, forced-flow steam boiler, the feedwater is pumped at critical pressure to a preheater 2 disposed in a downpass 1 receiving furnace gases from a radiation chamber 3 and flows from this preheater through a second preheater 4 located in the radiation chamber and wherein it is heated to just below critical temperature. It then passes through a tube 6 mounted in a heating chamber 5 and in which is located the water-steam conversion zone. The tube 6 is heated by a counter-flow through chamber 5 of superheated steam from a superheater 7 located in chamber 3, the superheater receiving steam directly from tube 6. The heat given up by the superheated steam in its passage through chamber 5 is restored by passing it through a radiant superheater 8, the steam then flowing through a convection superheater 9 to the point of use. In a modification, the working medium is withdrawn from the conversion zone and slightly cooled by indirect contact with incoming feed water to reconvert it to the liquid state to permit the blowing-down of salts.
Patent GB-972684-A (GB)
Title: An automatic electric system for controlling registration in a rotogravure printing machine
IPC: B41F13/14
Filed: 1961-02-28
Abstract: 972,684. Automatic control of registration. CEA-PEREGO S.p. A. Feb. 28, 1961 [May 14, 1960], No. 7242/61. Heading G3R. In a registration control system for a rotogravure machine each section except the last, prints, in addition to its relevant monochromatic image, a register mark. On starting the superimposition of the monochromatic images is checked manually. Subsequently a photo-cell T E is connected to fed impulses, representative of register marks, sequentially to a magnetic memory of a recorder TM. A main drive M P then moves a sheet 1 over the rolls S1-S6, each of which prints an image and a register mark. A selector switch S is initially in a position 1 and the first mark is read by photo-cell T E and compared with the corresponding signal stored in the recorder TM. Lack of coincidence is detected by a device C which derives the error and energizes a motor M, to position a differential D, so as to tend to correct the lack of coincidence. The selector C is then stepped to position 2 and roll S2 adjusted by a motor M2 and differential D2. The roll S3 is subsequently adjusted and the selector switch is then reset to position 1 for the next sequence of register marks.
Patent GB-1081662-A (GB)
Title: Petroleum wax composition
IPC: C08L91/08
Filed: 1966-02-18
Abstract: Wax adhesive or coating compositions comprise a petroleum wax, a copolymer of ethylene and vinyl acetate, and a polyamide of a polymeric fat acid, defined as the amidification product of an alkylene diamine or trialkylene triamine with a dimeric and/or trimeric C8-C24 fatty acid.  The petroleum wax is preferably a paraffin wax, M.Pt. not less than 125 DEG  F. Preferred proportions, by weight, are 5 parts wax, 1-5 parts copolymer, 1.5-5 parts amide.ALSO:Wax adhesive or coating compositions comprise a petroleum, particularly a paraffin, wax, a copolymer of ethyelene and vinyl acetate, and a polyamide of a polymeric fatty acid, defined as the amidification product of a C2- 6 alkylene diamine or dialkylene triamine with a dimeric and/or trimeric C8-C24 fatty acid.  Preferred proportions are, by weight, 5 parts wax, 1-5 parts copolymer, 1.5-5 parts amide. The m.p. of the wax may be at least 125 DEG  C.  The copolymer preferably contains 25-40% vinyl acetate.  The polyamine from which the polyamide is prepared may be ethylene diamine or diethylene triamine.  The fatty acid may be saturated or ethylenically or acetylenically unsaturated, e.g. oleic, linoleic or tall oil fatty acid.  After polymerization it may be fractionated and/or catalytically hydrogenated. Up to 10 equivalent per cent of another C2- 20 dicarboxylic acid or a C1- 8 alkyl ester thereof may also be present, the total acid and amine being equivalent or a sufficient excess of amine being present to give a polyamide of amine number up to 100.  The polyamide may be prepared at 100-300 DEG  C. The composition may be prepared by heating a mixture of components to a homogeneous melt and allowing this to cool.
Patent GB-1272843-A (GB)
Title: Wall covering
Inventor: BURTON ARTHUR
IPC: C09J7/21
Filed: 1969-02-11
Abstract: 1,272,843. Wall covering. IMPERIAL CHEMICAL INDUSTRIES Ltd. 29 Jan., 1970 [11 Feb., 1969], No. 7383/69. Heading B2E. [Also in Division B5] A strippable wall covering material comprises a water permeable fibrous material, e.g. paper having a decorative surface and a discontinuous coating of a water impermeable polymeric material (e.g. polymers or copolymers of vinyl chloride, vinylidene chloride, vinyl acetate, ethylene, propylene methyl methacrylate or cellulose acetate butyrate) covering 60.90% of the other surface. The discontinous coating may be applied randomly or in regular patterns by kiss coating, pouring, spraying, impregnation techniques and printing, e.g. gravure, screen or wire wound roller. The coating may be impregnated with particles of water activatable adhesive, e.g. starch, methyl cellulose, by incorporating the particles in the coating composition or by sprinkling over the surface. The decorative surface may be provided with a printed or embossed design and can be provided with a water impermeable coating, e.g. PVC polyvinyl acetate or alkyd resin to make the material washable. The fibrous material may be a paper laminate (see Division B5).
Patent GB-374493-A (GB)
Title: Improvements in or relating to joints for pipes and the like
IPC: F16L13/12
Filed: 1931-03-10
Abstract: 374,493. Pipe joints. MOULTON, F., of Lead Wool Co., Snodland, Kent, and WILSON, P. H., 21, Trevose Gardens, Sherwood, Nottingham. March 10, 1931; No. 7402. [Class 99 (i).] A packing ring for pipe joints and stuffing boxes comprises a deformable metal envelope a filled with a resilient material such as lead wool, leather rubber or rubberized yarn, and is of triangular section having two side walls converging in an axial direction, being open at the apex b or the base a<1>. One or more of the ring faces may be roughened such as by a screw thread a4, the irregularities in the roughened surface being filled by a plastic sealing material. The ring may be used in a joint of the kind described in Specifications 282,160, [Class 99 (i), Pipes and tubes, Joints &c. for], and 343,217, or in the base of a socket d, Fig. 4, which is filled in with lead l with or without spun yarn or other packing y.
Patent GB-1212941-A (GB)
Title: Improvements in or relating to electric hot-plates
Inventor: FISCHER KARL
IPC: H05B3/68
Filed: 1968-02-15
Abstract: 1,212,941. Thermal switches. K. FISCHER. 15 Feb., 1968 [16 Feb., 1967], No. 7404/68. Heading H1N. [Also in Division H5] An electric hot plate comprises a heating plate 1, a cover-plate 6, a heating element 2, 3 embedded in insulation between the plates, a thermal switch 10 having a ceramic housing 11 located in contact with a heated portion of the thermal insulation and extending through the cover-plate, and supply terminals 18, 19 located on the portion of housing 11 which projects from the cover-plate. The housing has its open side in contact with the thermal insulation so that a bimetal strip 15 is nearer to the heat source than a snap-action contact set 20, 21, 22. The movable snap-action contact spring 21, 24 is actuated by lever 17 on rise in temperature. The heating element is connected to tag 19 and a tag 26 of the movable contact 21, 24 by insulated connecting posts (Fig. 2, not shown). The switch prevents excessive temperatures of the hot plate.
Patent GB-1163179-A (GB)
Title: A Process for Preparing 2,3-Dihydro-2,2,4-trimethyl-7-Benzofuranol
IPC: C07C45/71
Filed: 1967-02-16
Abstract: 1,163,179. 2,3 - Dihydro - 2,2,4 - trimethyl - 7- benzofuranol. FMC CORP. 16 Feb., 1967 [23 Feb., 1966], No. 7458/67. Heading C2C. 2,3 - Dihydro - 2,2,4 - trimethyl - 7 - benzofuranol is prepared by (a) acetylating m-cresol to form m-cresol acetate, (b) heating m-cresol acetate to rearrange it to 2-hydroxy-4-methyl acetophenone, (c) reacting 2-hydroxy-4-methylacetophenone with a (#-methallyl halide to form 2 - methallyloxy - 4 - methyl - acetophenone, (d) heating (rearranging and cyclizing) 2 - methallyloxy - 4 - methylacetophenone to rearrange and cyclize it to form 2,3-dihydro- 2,2,4 - trimethyl - 7 - acetyl benzofuran, (e) oxidizing 2,3 - dihydro - 2,2,4 - trimethyl - 7- acetylbenzofuran with a peroxide or peracid to 2,3 - dihydro - 2,2,4 - trimethyl - 7 - acetoxybenzofuran and (f) hydrolysing the 2,3- dihydro - 2,2,4 - trimethyl - 7 - acetoxybenzofuran to 2,3 - dihydro - 2,2,4 - trimethyl - 7 - benzofuranes. The step (d) may be carried out in one or two stages, the 2 stage process going via 3 - methallyl - 2 - hydroxy - 4 - methyl acetophenone. Step (b) is preferably carried out in the presence of aluminium chloride, step (c) in the presence of an acid acceptor and at a temperature of 150-225‹ C., step (d) at 150-225‹ C. and in the presence of an acid catalyst, step (e) oxidation is by an activeoxygen compound, e.g. peracetic acid and step (f) is carried out by an aqueous solution of a strong base.
Patent GB-549977-A (GB)
Title: Improvements in or relating to the cementing together of shoe parts or other parts having like surface characteristics
IPC: A43D25/06
Filed: 1941-06-13
Abstract: 549,977. Indiarubber compositions ; cementing together shoe parts. B.B. CHEMICAL CO., Ltd., PUDDEFOOT, L. E., SWIRE, W. H., and ELSON, K. H. June 13, 1941, No. 7464. [Class 70]. [Also in Group VII] Shoe parts and similar surfaces are adhesively bonded by applying to at least one of the surfaces a composition containing chlorinated rubber and a solvent, allowing the composition to dry and applying the solvent to activate it before bringing the surfaces together. A shoe upper and a sole are roughened by apparatus described in Specifications 416,667, [Group VII], and 444,250, [Group VII], and cement coatings applied by apparatus described in Specifications 411,815 and 518,779, [both in Group III], solvent or softener is applied by the apparatus of Specification 411,815, [Group III], and the parts are pressed together by the apparatus of Specification 408,953, [Group VII]. A suitable cement is formed of the chlorinated rubber sold under the Registered. Trade' Mark "Alloprene", a plasticizer such as that sold under the Registered Trade Mark, "Cereclor", dibutyl phthalate, dimethyl glycol phthalate, or tricresyl phosphate and a solvent such as benzol or a mixture of benzol and ethyl acetate. The dried coating is activated by means of a low-boiling solvent such as acetone in which chlorinated rubber and plasticizer are dissolved. Specifications 399,525, 406,030, 481,396, 493,139 and 524,070 also are referred to.
Patent GB-667730-A (GB)
Title: Improvements in longwall mining machines
Inventor: ANDERSON ALEXANDER
IPC: E21C27/02
Filed: 1950-03-25
Abstract: 667,730. Mining-machines. ANDERSON, BOYES & CO., Ltd. Aug. 21, 1950. [March 25, 1950] No. 7542/50. Class 68 (i). A longwall mining machine including a lower cutting cylinder 1 arranged to cut the lower portion of a seam and a vertically adjustable upper cutting cylinder 2 arranged to cut the upper portion of the mineral seam, said cylinders being so relatively displaced axially and' transversely with respect to the direction of travel of the machine that, notwithstanding any variation of the working height of the upper cylinder, the cross-sectional areas of the cuts made by the two cylinders will always be equal when the machine is in operation.
Patent GB-948876-A (GB)
Title: Gas-blast electric circuit interrupters
IPC: H01H33/16
Filed: 1962-02-27
Abstract: 948,876. Gas-blast switches. WESTINGHOUSE ELECTRIC CORPORATION. Feb. 27, 1962 [March 1, 1961], No. 7554/62. Heading H2B. In a gas-blast switch generally similar to that described in Specification 885,932, each contact pair 23, 26 is associated with a piston controlled probe 51 movable as extinguishing gas (from the blast-valve 33) in the space 56 enters a tube 54 and cylinder 61. The probe engages the tubular movable contact 23 and connects an impedance 47 across the contacts 23, 26 and the residual arc 58 is also in the path of the gas-blast.
Patent GB-1220933-A (GB)
Title: Improvements in or relating to bellows
Inventor: HOLT GORDON CHARLES
IPC: B21D15/06
Filed: 1967-02-17
Abstract: 1,220,933 Corrugating; making bellows. TEDDINGTON BELLOWS Ltd. 16 Feb., 1968 [17 Feb., 1967], No. 7624/67. Headings B3A and B3E.  A bellows is made by securing a reinforcing ring 10 to each end of a tube 4 and forming radially outwardly extending convolutions 11- 14 by rollers 5-7, as the tube rotates. In one embodiment, a single or multi-ply tube 4 is placed on a table 1 and a spindle 3 clamped in position such that rollers 6, 7 and guide rollers 8, 9 carried thereon bear against the outer surface of the tube. After positioning a spindle 2 such that a roller 5 carried thereon contacts the inner surface of the tube, the spindles 2, 3 are rotated to cause the tube to rotate. As the tube rotates, the spindle 2 is moved by an air cylinder towards the spindle 3 causing a convolution 11 to be formed. After disconnecting the drive to the spindles 2, 3 and moving back the spindle 2, the rollers 5-7 are axially moved on their respective spindles and the process repeated to form another convolution 12. When the desired number of convolutions has been formed, the rollers 5-7 may be replaced by radiused rollers to deepen the convolutions (Figs. 2-4, not shown). The tube may be rotated by separate drive means and may be supported on rollers. Guide rollers 8, 9 may also be positioned on the spindle 2. The reinforcing rings 10 may be tack welded to the tube, from which they are subsequently removed, or alternatively they form part of pipe ends and are firmly welded to the tube ends.