baber/WOPTO huggingface dataset:
Patent GB-668092-A (GB)
Title: Improvements in or relating to splines
IPC: F16D1/06
Filed: 1949-04-22
Abstract: 668,092. Spline couplings. WEDEVAGS BRUKS AKTIEBOLAG. April 22, 1949 [April 24, 1948], No. 10700/49. Class 80 (ii). Involute-flanked straight or helical shaftsplines 14 have a width which is less than that of the intervening tooth-spaces, which latter have part-cylindrical bases 36 for centring the slidable female member 12, and clearance grooves' 28 at the fillets, formed by ribs on the generating cutter, to provide clearance for grinding after heat-treatment, said clearance grooves 28 having a width less than that of the teeth. Two alternative tooth-width dimensions are quoted, in the first of which the tooth-width is equal to the pitch-module m and the corresponding toothspace m (#-1), whilst in the second the overall pitch is increased to 1.25#m, made up of #m/2 for the tooth-width and ¥#m for the tooth-space width.
Patent GB-560151-A (GB)
Title: Improvements in or relating to couplings for the pipe lines of fluid pressure braking systems
IPC: B60T17/04
Filed: 1942-07-31
Abstract: 560,151. Pipe couplings. TOMLINSON, A. V. (Bendix Westinghouse Automotive Air Brake Co.). July 31, 1942, No. 10752. [Class 99 (i)] In a brake pipe coupling for vehicle tractors and trailers comprising coupling-members 7, 8 with engaging gaskets 15, dirt is prevented from entering the pipes when uncoupled, by providing the gaskets with resilient membranes 19 which are slit so as to form flap valves which close when not under fluid pressure, but open when the coupling is made' and fluid is flowing in the pipes.
Patent GB-304527-A (GB)
Title: Improvements in or relating to bag sewing apparatus
IPC: D05B13/00
Filed: 1928-04-11
Abstract: 304,527. White, A. E., (Bates Valve Bag Corporation). April 11, 1928. Feed by chains and other flexible members and by dogs; grouped machines; work guides.-A bag sewing apparatus has an endless band feed in addition to the dogs of the sewing machine, for conveying the bags to the sewing point, and devices to position the work correctly for sewing. The work table has two parallel grooves 11, 12 in which run belts or chains 13, 14. Pushers 15 are carried by the belts at spaced intervals to engage the bags 33 and convey them to the sewing machines 16, 18, for sewing their edges. An adjustable work-guide 25 engages one corner of the bag and pushes its opposite edge into contact with the adjustable stop plate 35 adjacent the machine 16, to position the edge correctly for sewing. The feed dogs of the machines 16, 18, are timed to operate at least as fast as, and preferably faster than, the rate of feed of the belts. The guide 25 is mounted on a plate 26, Fig. 3, with an elongated slot for permitting adjustments; the part 29 engaging the bag is spring-pressed towards the bag and has a projection 23 engaging an adjustable stop 31. To avoid difficulties of unequal rates of feed when the two edges of the bag are sewed simultaneously, the machines 16, 18 and their associated guides 25, 32, and stop plates 35, 37 are, staggered. When the seams are reinforced by tapes, cutters 17, 19 are interposed to separate the bags.
Patent GB-591169-A (GB)
Title: Improvements in means for extracting objectionable gases or vapours, contaminated air and the like from kitchens water closets or other compartments
IPC: F24C15/20
Filed: 1945-04-30
Abstract: 591,169. Ventilating water closets. KING, R. W. April 30, 1945, No. 10831. [Class 137] [Also in Group XI] A device for extracting and dispersing to the outside atmosphere objectionable gases, vapours &c. from rooms or closets equipped with domestic appliances, such as cooking heating or waterflushing appliances, comprises an electric motor driven exhauster fan installed in the room or closet so as to communicate with the outside atmosphere on its discharge side, and an electromagnetic relay switch or contactor for controlling the fan motor, said relay switch having switch contacts connected in the motor circuit and an operating coil which closes the switch contacts automatically when the domestic appliance is brought into use and maintains said contacts closed to effect continued operation of the fan until, or for an interval of time after, such use of the domestic appliance ceases, whereupon said contacts are released to interrupt the motor circuit, so that the motor ceases to drive the fan and initial conditions are restored. Fig. 3 shows the device applied to the flushing tank of a water closet, the chain 35 controlling a switch 36 which has contacts 37 connected across the supply 12 through the operating coil 14 of an automatic switch 13 and a spring held switch 39. When the switch 36 is closed, consequent closing of the switch 13 completes the holding circuit 42, 43 and starts the fan motor 9. Downward movement of the ball 47 rocks the arm 48 past the switch 39, but its subsequent upward movement raises the switch 39 off its fixed contact 52 thus stopping the motor 9. Fig. 2 shows a modified arrangement, described in connection with a gas cooker (see Group XI) but stated to be applicable to closets, in which a diaphragm 23 or piston is caused by the drop in pressure in the venturi 19, to close a switch bar 32 on to contacts 33 and thus to start the motor 9.
Patent GB-822382-A (GB)
Title: Improvements in or relating to homokinetic hydraulic impellers
IPC: F03C1/32
Filed: 1957-04-03
Abstract: 822,382. Hydraulic motors. ANCIENS ETABLISSEMENTS PANHARD & LEVASSOR S.A., DES. April 3, 1957 [April 13, 1956], No. 10837/57. Class 69 (2). An hydraulic motor rotates about a hub 2 and consists of radially-disposed arms 1 which support pistons 3 working in cylinders 4. Radial effort is transmitted from the cylinders to an eccentric cam surface 7 through a yoke 8 and rollers 9. However, the oblique reaction of the cam surface is transmitted to the hub 2 through the yoke 8 and rollers 10, which move in slots 11 in discs 12 rigid with the hub 2. Piston 3 can slide on arm 1 in a circumferential direction so that no oblique reaction is passed between cylinder 4 and arm 1.
Patent GB-115747-A (GB)
Title: Improvements in and relating to the Cooling Water Supply Means for Tuyeres and like Nozzles.
Inventor: MOORE ALBERT JAMES
IPC: C21B7/16
Filed: 1917-07-28
Abstract: 115,747. Moore, A. J. July 28, 1917. Tuyeres.-A water-circulating system comprising a radiator c is fitted in connexion with watercooled tuyeres and like nozzles a. The water may be circulated by a pump or by a water jet e, and returns through a pipe b to the radiator c, which has an overflow f. The return pipe d has a loop at g.
Patent GB-1419318-A (GB)
Title: Electrical switchgear
IPC: H01H9/12
Filed: 1973-03-06
Abstract: 1419318 Earthing and testing switchgear YORKSHIRE SWITCHGEAR & ENG CO Ltd 5 March 1974 [6 March 1973] 10870/73 Heading H1N An earthing and testing-connection device for high voltage switchgear comprises a carrier 8 on which is mounted a set of extension plugs 10-12 and a set of star-connected contacts 21 which are connected to earth contacts 24, 25, the carrier having a device 29 for locking it in position on a movable housing 4 containing switching means, and a further device 28 for locking it in position on a stationary housing 1 containing bus-bar and feeder sockets 2 and 3. The extension plugs are arranged with cluster contacts 13-15 at one end for engaging a set of the sockets (e.g. the feeder sockets 6) in the stationary housing 1 and at the other end are formed with sockets 16-18 to engage with one set of supply plugs 6 on the movable switchgear housing 4. The star-connected earthing contacts are arranged to engage with the other set of supply plugs 7 on the switchgear housing. To earth the feeder circuits, the device is fitted to the movable housing as shown in Fig. 4 (and Fig. 3, not shown) and locked by movement of the handle 30 which pivots the lever 27 so that the slot 29 engages with a retaining member 29a on the housing. The movable housing is then advanced into the position shown in Fig. 4 where the extension plugs engage the feeder sockets 2, the shielding shutters being opened by operating rods 19. The earthing contact 24 engages a contact on the stationary housing, whilst contact 25 similarly makes connection to the movable housing. Earthing is effected by closing the switch to complete the circuit from the feeder sockets, via the plugs 7 and 6 and the starpoint contacts 21, to earth contacts 24 and 25. For testing the feeder circuit, the switch is opened and the movable housing is disengaged and withdrawn leaving the device supported on the stationary housing (Fig. 5, not shown) with the sockets 16-18 accessible for testing. An interlock 31 is provided to prevent insertion of the device into the stationary housing other than when it is mounted on the movable housing. The device may also be used inverted (Fig. 6, not shown) so that the extension plugs engage the bus-bar sockets 3.
Patent GB-717272-A (GB)
Title: Improvements in and relating to heat exchangers
IPC: F28F3/02
Filed: 1952-05-01
Abstract: 717,272. Heat-exchangers. AIR PREHEATER CORPORATION. May 1, 1952 [May 22, 1951], No. 10988/52. Classes 64(1) and 64(3)  An assembly for use in either a recuperative or regenerative heat-exchanger comprises superimposed rows of inverted T-members 10 together forming heatexchanger fluid passages, with the lateral flanges 14 of contiguous members in one row joined together and to the stem 16 of a member in an adjacent row by welding. The T-members may have their lateral flanges disposed either at an acute angle to the stem, Fig. 3, or normal thereto, Fig. 1. When used as a recuperator, Fig. 1, alternating air and gas passages 27, 28 are formed by the rows of members and the upright stems 16 of individual T-members constitute longitudinal fins in one or other of the fluid passages.
Patent GB-335635-A (GB)
Title: Improvements in internal combustion engines of the two-stroke type
IPC: F02B25/00
Filed: 1929-04-09
Abstract: 335,635. MacKenzie, D. G. April 9, 1929. Two-stroke-cycle engines; cylinders, ports of.- An annular pump 6 surrounds the lower end of the power cylinder scavenging; air is compressed on the lower side of the pump piston and combustible mixture or charge air on the upper. The admission of air to the lower side of the pump and the admission of charge to and delivery from the upper side is controlled by a piston valve 31. The delivery of scavenge air is controlled by ports 22 in the pump piston. As shown the power piston works within coaxial sleeve valves 14, which control the direct admission of the working charge to and the exhaust from the combustion chamber. The pump piston is integral with the outer sleeve valve; both valves are driven by eccentrics from the crank shaft. The scavenge air passes from the ports 22 through passages 17 cut in the inner sleeve valve. In a modification, the sleeve valves are replaced by overhead lift valves worked off the cam shaft 32; the pump piston then has a depending sleeve working over a fixed cylinder.
Patent GB-755559-A (GB)
Title: Improvements in the formation of vitreous enamel coatings on metallic surfaces
IPC: C23C22/74
Filed: 1954-04-14
Abstract: A metal surface is coated with a vitreous enamel by forming a phosphate coating on the surface, heating the surface and coating in an oxidizing atmosphere to form a mixed phosphate-oxide coating, the oxide being formed from the metal, and then applying and firing one or more layers of enamel.  The metal, which may be ferrous or titanium, is treated with a phosphate-coating solution containing, e.g. zinc, manganese, sodium, potassium or ammonium phosphate, preferably one of the latter three, to which may be added oxidizing agents such as nitrates, nitrites, chlorates, bromates, sulphites, peroxides and organic nitro-compounds such as meta-nitrobenzene sulphonate, rinsed in cold water with or without subsequent drying as by a strong air blast, flash-drying or immersion in a water-absorbing organic solvent such as a ketone, e.g. acetone, an alcohol, e.g. isobutyl alcohol or a glycol, e.g. ethyl ether of ethylene glycol, and heated in air, oxygen or an atmosphere containing water to a temperature above 1100 DEG F., preferably 1200 DEG  to 1550 DEG F., for three minutes.  The total weight of the coating should be 0,4 to 12 grams per sq. foot, preferably 4 to 5 grams per sq. foot, of which the weight of phosphate (as PO4) should be 1 to 60mg. per sq. foot, preferably 20 to 25 mg. per sq. foot.  Any known vitreous enamel coating may then be employed.  The enamelling of mild steel panels by immersion in an aqueous acidic solution of monosodium phosphate, heating in air at 1350 DEG F. for three minutes and coating with a Ti-containing enamel slip and firing at 1480 DEG F. for four minutes is described by way of example as are phosphating solutions comprising (a) zinc dihydrogen phosphate and sodium chlorate, (b) ortho phosphoric acid and sodium 2,4-dinitrobenzene sulphonate and (c) zinc dihydrogen phosphate, sodium chlorate, ammonium fluoride and tetrasodium ethylene diamine tetraacetate.
Patent GB-201144-A (GB)
Title: Improvements in and relating to derails
IPC: B61K5/06
Filed: 1923-04-24
Abstract: 201,144. Hayes Track Appliance Co., (Assignees of Hayes, S. W.). July 21, 1922, [Convention date]. Derailing devices are made with the body portion 9 and derail block 8 separate but secured together. The parts 8, 9 may be made of different metals, or the block 8 may be changed to enable the derail to be used with different rails. The block 8 has an extension 15 fitting a vertical socket 12 formed at the widest part of the body 9, bolts 18 securing the parts together. The block 8 may have a flange 16 engaging the external wall of the socket, and may be made of manganese steel.
Patent GB-623366-A (GB)
Title: Improvements in drawing-heads of spinning machines
IPC: D01H5/72
Filed: 1945-05-02
Abstract: 623,366. Roving, guides for drawing apparatus. LEMAIRE, J. May 2, 1945, No. 11146. Convention date, June 24, 1941. [Classes 120 (i) and 120 (ii)] ' A roving condenser for the drawing head of a textile spinning machine comprises two side walls 5, 6, Fig. 5, each of which consists of a plate bent along a line c to form two triangular portions, the plates being supported symmetrically close to the drawing rollers with two triangular portions parallel, with their apices close to the nipping line of the rollers, and two portions diverging. The width of the duct h between the walls may be adjusted. The Specification as open to inspection under Sect. 91 comprises also condenser having side walls 5, 6 formed with arms 5<SP>111</SP>, 6<SP>111</SP> riveted to a transverse bar 13, Figs 6 and 7 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-610613-A (GB)
Title: Manufacture of allyl alcohol
IPC: C25B3/25
Filed: 1946-04-11
Abstract: 610,613. Electrolytic production of allyl alcohol. BRITISH CELANESE, Ltd. April 11, 1946, No. 11175. Convention date, April 12, 1945. [Class 41] Allyl alcohol is obtained by the electrolytic reduction of acrolein in a suitable electrolyte, e.g. dilute aqueous sulphuric acid, or an aqueous solution of sodium bicarbonate, sodium bisulphate or magnesium sulphate in the presence of ferrous sulphate and/or zinc acetate to inhibit the reduction of the double bond and of hydroquinone as a polymerisation inhibitor. The cathode may be of copper, lead, mercuryplated lead or zinc, preferably separated by a porous partition from the anode which is made of a suitable metal or graphite. The current density may vary from 0.5 to 5.0 amps per square decimetre of cathode but should preferably be maintained at about 1-2 amps. The temperature should be controlled at 60-100 F. and the reduction is continued until at least a current chemically equivalent to that theoretically required has been passed through the cell. In the example 25 parts by weight of acrolein and 825 parts by weight of an aqueous 5 per cent solution of sulphuric acid containing also 2 parts each by weight of ferrous sulphate, zinc acetate and hydroquinone are added to the chamber of a mercuryplated lead cathode and 200 parts by weight of 5 per cent sulphuric acid to the anode compartment. Current at 1.28 amps per square decimetre 'is passed through the cell for five hours, whilst maintaining the temperature at 25 C. Unreacted acrolein is removed by distillation from the allyl alcohol which is formed in a yield of 50 per cent.
Patent GB-1260794-A (GB)
Title: Method and apparatus for stencil molding three-dimensional objects
IPC: A43D11/01
Filed: 1970-03-10
Abstract: 1,260,794. Moulding plastic materials. FABERGE Inc. 10 March, 1970 [12 March, 1969], No. 11310/70. Heading B5A. Apparatus for moulding an object on a substrate such as 88, Fig. 6, having the shape of a perforation 58, Fig. 7, of a flexible stencil type mould 56, and a thickness corresponding to the mould thickness, includes a frame 42 to the base of which is attached a flexible member 50 to which the mould is fixed. The flexible member is perforated at least over that part corresponding to the perforation 58. The frame 42 is supported by a further frame 20, Fig. 1, hinged to the base 12 on which the substrate is positioned such that the lower surface of the mould is spaced from the substrate. Mouldable material 90, such as vinyl plastisol, clay or latex, is fed to the mould and forced through the member 50 at the perforation 58 by a squeegee 68 resiliently and adjustably mounted at the base of a support 62 moved along a bar 30. Movement of the squeegee brings the mould into contact with the substrate as the material is forced on to the substrate and as the squeegee moves along the previously contacted part of the mould it leaves the substrate and the deposited layer. The latter is then heat cured. By replacing the frame 42 with one or more successive ones each having moulds with perforations of a different shape, additional shaped layers may be applied. Alternatively a series of aligned moulding assemblies with moulds of differently shaped perforations may be located above a conveyer on which a series of substrates are mounted and to which the variously shaped moulded layers are applied in turn. A pocket of desired shape may be provided in the finished article by placing a blocking agent on one layer before the application of the second to prevent bonding of the latter. The substrate may form part of the finished article or it may be removed.
Patent GB-471242-A (GB)
Title: Improvements in or relating to apparatus for metering the revolutions of an axle or shaft
IPC: G01C22/00
Filed: 1937-04-20
Abstract: 471,242. Odometers. SIEMENS-SCHUCKERTWERKE AKT.-GES. April 20, 1937, No. 11323. Convention date, April 27, 1936. [Class 106 (iii)] In odometers for counting the number of revolutions of a shaft 1 wherein the counting mechanism is actuated by an oscillating member 6 driven by an eccentric disc 2 on the shaft 1, difficulties arising from misalignment and play in the shaft bearing are obviated by making the member 6 engage the disc 2 only at the two ends of a horizontal diameter of the disc. The U-member 6 is supported on two pivot pins 7, attached to links 8 pivoted at 9 to a fixed bracket 10, a spring 25 connecting the two links 8 to compensate for play at the pivots 7, 9. The member 6 carries rawhide plates 5 at its upper ends which have lugs 15 engaging slots 14 in rawhide blocks 16 on a fixed bracket. The plates 5 engage the rounded edge of the disc 2. A lug 26 on the member 6 carries a pawl 17 engaging a ratchet wheel 18 driving the counting mechanism 11. Backward rotation of the wheel 18 is prevented by a locking pawl 19 having teeth of a smaller pitch than the pitch of the ratchet wheel teeth so as to prevent inaccuracy due to displacements of the axle in a horizontal plane. A single hinge may replace the links 8. The counting mechanism extends into the spout of the shaft bearing housing and is in part immersed in the shaft lubricating oil 21, the flap 24 being raised to take a reading.
Patent GB-1382301-A (GB)
Title: Heating devices
IPC: F01N3/26
Filed: 1972-03-10
Abstract: 1382301 Gas fired heaters; burning noxious vapours PAN AMERICAN CHEMICAL CO Inc 10 March 1972 [13 April 1971] 11330/72 Heading F4B A heater for gases, especially for exhaust gases of an internal combustion engine which are to be catalytically purified, comprises a double-walled combustion chamber having an outlet for burned gases and a burner located in the outlet and surrounded by a sleeve so as to prevent unburnt fuel/air mixture being entrained by the burnt gases. The combustion chamber 4 is coaxially arranged in a chamber 1 in a pipe conveying waste gases to a catalyst arrangement. A burner 5 delivers a mixture of fuel and air to the chamber 4 in the opposite direction to the flow of waste gases in the chamber 1, and a sleeve 6, which may be cylindrical or Venturi-shaped prevents the hot gases emerging from the chamber 4 from entraining cold unburnt fuel and air, and causes some of the burnt gases to be recirculated. The double walls of the chamber 4 prevent its being unduly cooled by the waste gas stream, so that the composition of the burnt gases entering the waste gas stream and flowing to the catalyst purifier may be controlled. An ignition device 7 projects into the chamber 4 and a thermostat 11 so that the amount of fuel fed to the burner may be regulated. The Specification gives details of dimensions of the sleeve 6 and chamber 4 for satisfactory operation.
Patent GB-251647-A (GB)
Title: Improvements in electrical hot-water heating apparatus
IPC: G05D23/275
Filed: 1926-04-29
Abstract: 251,647. Graber, O. April 29, 1925, [Convention date]. Controlling heating systems.- Each room of a building is provided with a hot-water radiator 26 fitted with an electric heating element 25 controlled by switch elements 16, 17 coupled by reduction gearing to a motor 21 controlled by a relay 8, 9 in the circuit of which is inserted a mercury contact thermometer 1. The operating temperature of the thermometer may be adjusted by means of a switch arm 4, and the adjusting devices for the different thermometers are mounted on a common switchboard.
Patent GB-189715-A (GB)
Title: Improved fuel for internal combustion engines
IPC: C10L1/18
Filed: 1922-04-22
Abstract: Motor spirit comprises a mixture of alcohol and ether to which is added castor-oil preferably in proportions of 0.2-5 per cent.
Patent GB-685384-A (GB)
Title: Improvements in tools for manipulating sheathed electric cables and the like
IPC: H02G1/06
Filed: 1950-05-08
Abstract: 685,384. Bending-formers. JOHNSON & PHILLIPS, Ltd., ALDRIDGE, F. J., and JONES, H. S. May 8, 1951 [May 8, 1950], No. 11383/50. Class 83 (iv). Straightening dies.-A tool for bending or straightening sheathed electric conductors &c. comprises a work support 5 of angle section mounted on trunnions 8 in bayonet slots 20 in side plates 7 and a short former 6 of angle section shaped longitudinally to the curve required hand actuated by a cam 12. In a modification the former 6 is fitted with handles for hand operation. An angle-section liner 15 may be fitted to the work support.