baber/WOPTO huggingface dataset:
Patent GB-491350-A (GB)
Title: Improvements in or relating to extensible fabric bands and wearing apparel provided therewith
IPC: A41F9/02
Filed: 1936-12-30
Abstract: 491,350. Wearing-apparel. NARROW FABRIC CO. Dec. 30, 1936, No. 20789/37. Convention date, March 13, 1936. Divided out of 491,313. [Class 141] [Also in Group VIII] An extensible fabric band or strip comprises elastic strands disposed longitudinally of the band, the elastic strands being interconnected by inelastic strands, and the band being provided with a marginal zone which is of less thickness than the remainder of the band, the thinner marginal zone being produced by employing inelastic strands therein which are finer than the inelastic strands in the remainder of the band. In the form shown in Fig. 5, the band 10 is produced by braiding, the elastic strands being indicated at 12, 21, and 22, and the strands 12 which are disposed in the marginal zone 11 are interconnected by inelastic strands 24 which are finer than the strands 23 employed in the remainder of the band. In a modification, Fig. 6, the band 27 is warp knitted, the elastic strands being indicated at 28 and 32, and the strands 30 which wrap the strands 28 in the marginal zone, and the interlocking strands 36 in the marginal zone are finer than the corresponding strands 31, 35, 37 in the remainder of the band. The extensible band or strip is adapted to be sewn to a garment in such a manner that the marginal zone of the band overlaps the margin of the garment. As shown in Fib. 4, the marginal zone 11 of the braided band 10 is attached to the margin of a stocking fabric 16 by an extensible seam 19, 20.
Patent GB-1339455-A (GB)
Title: Method for purification of isoprene
IPC: C07C2/86
Filed: 1971-04-19
Abstract: 1339455 Isoprene TAKEDA YAKUHIN KOGYO KK 19 April 1971 [4 Feb 1970] 20801/71 Heading C5E Isoprene is recovered by a process comprising: (i) contacting a reaction mixture of isobutylene and formaldehyde with water to dissolve out the formaldehyde; (ii) contacting the remaining gaseous mixture of isoprene and isobutylene with an oily substance, obtained as a by-product of the reaction of isobutylene and formaldehyde, in a distillation column at a bottom temperature of not less than 80 C. and a top temperature of not more the 50 C.; and (iii) subjecting the material obtained from the bottoms of the column to further distillation whereby isoprene is recovered as a distillate. The oily substance which boils at 90-200 C. and comprises C 8 - C 10  unsaturated hydrocarbons may be separated from the aqueous formaldehyde solution obtained in (i) which contains entrained oily substances from the reaction mixture. The bottoms of the further distillation (iii) may be recycled to (ii) as additional oily substance. The reaction mixture used as starting material for the process is prepared by reaction of formaldehyde with a large excess of isobutylene at elevated temperature in the presence of a solid acid catalyst. Catalysts used in the examples are Ca phosphate, antimony oxide, ferric phosphate and H 3 PO 4  each supported on silica gel. During the initial period of a continuous process an organic solvent such as an alcohol, hydrocarbon an halogenated hydrocarbon, may be added with the oily substance in (ii).
Patent GB-648690-A (GB)
Title: Improvements in and relating to the treatment of sugar
IPC: C13B30/02
Filed: 1947-07-31
Abstract: A sugar preparation is manufactured by heating a sugar solution to a temperature above the melting-point (about 274 DEG F) but below the charring-point (about 375 DEG F) of the sugar and maintaining it in a thin film free from agitation in order to dehydrate it without substantial crystallization of the sugar in the solution. The starting-solution is preferably a clarified juice, concentrated to approximately a 60 per cent solids content, obtained from cane, beet, or other sources, and contains up to 12 per cent of the dry sugar content of invert sugar of which not more than 10 per cent, and preferably not more than 6 per cent, is levulose.  The solution is applied to the surface of a drum, steam-heated to such a temperature that the liquid is evaporated and the sugar melted in less than one complete revolution, the melting-point being lower than those of the various constituents. The product is scraped from the drum and solidifies as it is being passed to crushing and packaging apparatus. The product comprises minute crystals of sucrose with non-crystalline material including the invert sugars, salts, gums, and other impurities of the original solution, together with not more than 2 per cent of water corresponding to not more than 25 per cent of the levulose content.
Patent GB-243461-A (GB)
Title: Automatic control mechanism for refrigerating apparatus
IPC: F25B49/02
Filed: 1924-09-04
Abstract: 243,461. Wilson, E. Sept. 4, 1924. Refrigerating, compression machines for.-The electric driving motor of the compressor of a machine for cooling a domestic refrigerator is controlled by the flow of cooling-water through the machine, the water-supply valve being moved by an electromagnetic relay controlled by a thermostat in the refrigerating-chamber. The thermostat 13, Fig. 5, which may be of the bi-metallic bar type, controls the circuits of electromagnets 16, 17 for the lower and upper limits of temperature, the armature 23, Fig. 3, of which actuates a balanced sliding valve 3 in the water conduit. The wa.ter is supplied through a passage 1, and when the valve is in the open position shown in Fig. 3 has access through a channel 4 to a cylinder 7, Fig. 1, containing a piston fitted with a switch rod 8 carrying contact discs 9. The armature 23 is connected by a rod 24 to a crank arm 25 on a shaft 26 which actuates the valve through an arm 27 and valve-rod 28. The armature carries springs acting as buffers against brackets carried by or formed on the magnets 16, 17. The lowermost switch contact disc 9 coacts with two pairs of spring contacts to break the circuit of one thermostat contact and prepare for closing the circuit of the other thermostat contact, while each of the other discs 9 coacts with a single pair of spring contacts to control the supply of current to the motor from mains 11 to supply wires 12. A lamp 18, Fig. 5, included as a resistance in the electromagnet circuits, may serve as a signal when the source of water supply fails altogether, resulting in stoppage of the motor and ultimately in setting of the thermostat in its higher position. The switch rod 8 may control the operating circuit of a contactor type starter, the current in the wires 11 being derived from a battery or other independent source. Alternatively, a hydraulic prime mover of greater power than the cylinder 7 may be employed to rotate known cam shaft mechanism for operating a series of contactors, or the electric motor may be controlled by a multiple-finger starter controlled from the piston 7 by tappet switches. A single electromagnet may be used for actuating the water valve in opposite directions alternately, by the intermittent turning movement of a disc. According to the Provisional Specification, the thermostat may act directly on the water valve, or it may control a small electric motor for actuating the water valve, and a double-acting waterpressure cylinder may be used for controlling the main motor.
Patent GB-1489545-A (GB)
Title: Electrical contact materials for vacuum switches
IPC: H01H1/0233
Filed: 1976-05-20
Abstract: 1489545 Electrical contact material MEIDENSHA ELECTRIC Mfg CO Ltd GEMVAC CO Ltd and SUMITOMO ELECTRIC INDUSTRIES Ltd 20 May 1976 20947/76 Heading C7A Electrical contact material, suitable for vacuum switches, with low chaffing current, high toughness and good workability contains WC 20-80 Fe 1-30  Ag Bal (minimum 10%) The material is usually made by mixing silver powder, iron powder and WC powder in predetermined proportions, forming and sintering in a reducing atmosphere i.e. 1000-1100‹C in hydrogen.
Patent GB-1203022-A (GB)
Title: Improvements in or relating to wet gas scrubbers and methods of scrubbing
Inventor: GREEN KENNETH DAVID
IPC: B01D47/02
Filed: 1966-05-11
Abstract: 1,203,022. Gas scrubber. K. D. GREEN. 2 Aug., 1967 [11 May, 1966], No. 20998/66. Heading B1R. In a gas-scrubber gas enters tangentially at 10 flows downwardly onto the surface of a body of liquid and a mixture of gas and liquid passes upwardly through a bed of lightweight balls disposed between grids 2 and 3 in a tube 1 to an outlet 12. A plurality of tubes 1 may be provided within a single casing. In a modification gas passes downwardly through a central tube and the mixture of gas and liquid passes upwardly through a bed of lightweight balls disposed in an annular space between the tube and a casing.
Patent GB-798531-A (GB)
Title: Method for extrusion of chlorotrifluoroethylene polymer
IPC: B29C48/03
Filed: 1956-07-06
Abstract: Powdered chlorotrifluoroethylene polymer is compressed at room temperature into thin tablets prior to extrusion.  The tablets of circular cross section preferably have a diameter to thickness rates of at least 5 to 1, although a thickness of about 50-100 mm. and a diameter of 200-300 mm. is acceptable.  Low density chlorotrifluoroethylene polymer is comminuted to a fine powder by passing through a fine sieve and is then compressed to form tablets of the above dimensions.  These are then fed to a heated screw extruder and the material is extruded as a coating for wire; the high-temperature insulating properties of the material having deteriorated little during the above process.  In a modification a suitable pigment is added to the chlorotrifluoroethylene at the comminuting stage and a uniform dispersion therein is produced.
Patent GB-946064-A (GB)
Title: Zone-by-zone melting of rods of semi-conductor material
IPC: C30B13/00
Filed: 1961-06-09
Abstract: 946,064. Zone - melting. S I E M E N S - SCHUCKERTWERKE A.G. June 9, 1961 [June 11, 1960; Nov. 2, 1960], No. 21029/61. Heading B1S. A molten zone is passed a plurality of times through a vertical rod of silicon held at each end in an evacuated chamber, the process being interrupted before the passage of the last zone and air or water vapour introduced temporarily into the chamber. Each molten zone, which is produced by induction heating, is passed through the rod from a seed fused to one end. An incandescent but not molten zone is passed in the opposite direction. Ten molten zones may be passed.
Patent GB-149246-A (GB)
Title: Improvements in or relating to bedsteads
IPC: A47C23/06
Filed: 1920-07-12
Abstract: 149,246. Koller, K. Sept. 13, 1917, [Convention date]. Mattresses.-In a bed bottom or mattress comprising parallel elastic slats each of which has each of its ends engaged rotatably but not slidably with a transverse support, the said slats are made of wood. Fig. 1 shows wooden slats e carrying members f engaging in bearings d, while in the construction shown in Fig. 3, the forked members f<1> engage over a rod h.
Patent GB-995191-A (GB)
Title: A device for aiding the starting of internal combustion engines
Inventor: CURZON THOMAS
IPC: F01L13/08
Filed: 1961-06-12
Abstract: 995,191. Devices for aiding starting; vaporizing fuel. C.A.V. Ltd. May 31, 1962 [June 12, 1961], No. 21087/61. Headings F1B and F1K. A device for aiding starting by supplying fuel to the intake manifold, in which a fuel valve 12, held to its seat by a stem 13, is opened by the differential expansion of the stem 13 and body 5 when an electric heating coil 7 is energized, is characterized in that the surface of the stem 13 is roughened or grooved to prevent fuel flowing therealong. The stem surface may be screwthreaded as shown, provided with circumferential grooves, knurled, or roughened by sand-blasting. The body 1 is screw-threaded at 2 for fitting into the intake manifold and may be provided with an entrance sleeve 3 with air inlet holes 4 to admit air for mixture with the fuel vaporized by the heater 7. The interior surface of the bore 10 may also be roughened by screw-threads.
Patent GB-389000-A (GB)
Title: Improvements in or relating to brake drums for vehicle wheels
IPC: F16D65/10
Filed: 1932-07-26
Abstract: 389,000. Brakes vehicle wheels. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Kelsey-Hayes Wheel Corporation ; 3600, Military Avenue, Detroit, Michigan, U.S.A.) July 26, 1932, No. 21126. [Classes 103 (i) and 144 (ii).] A brake drum, particularly such in which the side wall or web part of the drum constitutes the support for a detachable tyre rim comprises a cast metal flange secured to a sheet metal side wall or web by tongues projecting from the web and overlying the flange. The side wall or web 13 adapted to be secured as by riveting or welding to the wheel hub at the central part 14 may be formed from a blank of'square section of width equal to the diameter of the cast-iron flange 10, the corners 15 of the blank being bent over to form tongues that are riveted to the flange. If the brake drum is to be used as the central portion of the wheel it is provided with a series of radial lugs 12 for bolting to radial lugs 18 attached to the tyre rim 17. The lugs 18 have shoulders 19 bearing on the lugs 12 and the lugs 18 also bear directly on the flange 10 so that the load strain is not taken by the bolts 20. In a modified construction, the lugs 12 are fitted into open-ended slots in the tongues 15 so that the driving and braking strains are shared between the lugs and the rivets by which the tongues are secured to the flange 10.
Patent GB-639523-A (GB)
Title: A new or improved table for use by a small child
IPC: A47D3/00
Filed: 1948-08-12
Abstract: 639,523. Nursery chairs. MAXWELL, M, Aug. 12, 1948, No. 21316. [Classes 52 (ii) and 52 (iii)] In a combined seat and table for a child wherein a flexible seat is detachably slung beneath an opening 5 in the table top 1 the back panel 19 of the seat is joined to the side panels 8 to close the back and form a bucket seat. The seat bottom may be stiffened and a closure plate 21 for the table top used as a back rest. A footrest 25 formed as a continuation of the seat bottom and a front strap 16 to retain the child may be provided. When not in use the seat folds flat against the underside of the table top and the legs 31, which are pivoted to the top rim, have cross bars 33, 34 which retain the folded seat when the legs are folded.
Patent GB-586780-A (GB)
Title: Improvements in driving mechanism of power operated winches
IPC: B66D5/32
Filed: 1944-11-01
Abstract: 586,780. Winches. SCAMMELL LORRIES, Ltd., and DAVIES, E. C. Nov. 1, 1944, No. 21326. [Class 78 (v)] Driving mechanism for a winch mounted on a motor vehicle or trailer comprises a driving shaft, which is driven through transmission gearing connected to the gear box and clutch of the motive unit of the vehicle and upon which is freely mounted a pinion engaging a gear on the winch, a releasable clutch between the pinion and the driving shaft, brake mechanism and a ratchet and pawl coupling between the pinion and brake. A driving shaft 1, Fig. 1, is arranged in a tubular housing 2, which is located between side plates 3 and 4 of the frame. The housing is provided with a flange 5 at one end to which is secured a gear casing 7. The latter houses a worm wheel 8 splined on to the shaft 1 and engaging a worm 9. A driving pinion 12 at the other end of the shaft meshes with the gear 13 of the winch and is integral with a sleeve 14. An extension 23 of the pinion 12 is splined to take the hub 24 of a brake drum 25, the latter being bolted to flanges 26 and 27 which rotate on the hub 24. The hub is provided with ratchet teeth 30 and pawls 31 mounted between the flanges 26, 27 are biassed to engage the teeth by springs 33. A clutch plate 35 bolted to the hub 24 has a number of holes 36 with which the dogs 37 of the clutch 38 are engaged when the cable is to be wound on. The load is paid out under control of the brake when the clutch is released.
Patent GB-892401-A (GB)
Title: Gas turbine engined aircraft
IPC: B64C39/00
Filed: 1952-08-25
Abstract: 892,401. Aircraft. FROST, J. C. M., and ROE (CANADA) Ltd., A. V. Aug. 25, 1953 [Aug. 25, 1952]. No. 21345/52. Class 4. [Also in Group XXVI] An aircraft comprises a radial flow gas turbine engine with an aerofoil sheathing the axial ends of the engine. The rotor 50 is annular, mounted on rollers 55, and carries compressor blades 63 and turbine blades 84. Upper and lower stator structures each comprise ribs 33, 39, compressor and turbine blades 62, 80 and combustion chambers 14. These stator structures form the framework of the aircraft and surround plenum chambers 12 and .the.; pilot's cabin 20. Air flows through intakes 10; 11 and chambers 12 to the compressor. Propulsive thrust is obtained from a multiple jet-pipe assembly 16 which directs the exhaust gases rearwardly, some passing through elevons 18 and trimmers 19. C-shaped fuel tanks are disposed on either side of the compressor, with the ribs 33 passing through them. The aircraft is launched at an angle, Fig. 7, and the gyroscopic stability of the large rotor combined with high thrust/weight ratio enables substantially vertical take-off and landing to be achieved. Bumpers 136 furnish lateral stability on the ground.
Patent GB-1223016-A (GB)
Title: Beams for use in forming self-supporting frameworks and frameworks formed therefrom
Inventor: ROOTS PHILLIP STANLEY
IPC: E04C3/28
Filed: 1968-05-07
Abstract: 1,223,016. Beam. ST. BERNARD PLASTICS Ltd. 11 June, 1969 [7 May, 1968], No. 21489/68. Heading E1W., A beam comprises two longitudinally extending tubes 1, 2 spaced by a separate web 3 contained therebetween the components being of reinforced plastics (e.g. glass fibre reinforcements). The web is preferably corrugated and the corrugations are preferably rectangular. Two such webs may be used with respective corrugations touching. A lightweight core (e.g. foam) may be used between the webs. As shown in Fig. 1 a similar beam 6 may be fitted into the corrugations to form a framework. (For Figure see next column)
Patent GB-225889-A (GB)
Title: Improvements in and relating to electric batteries of the leclanche type
IPC: H01M6/08
Filed: 1923-06-08
Abstract: 225,889. Antonoff, G. N. June 8, 1923. Electrodes; absorbents.-A dry cell is provided with means for ventilating the zinc container externally and internally and has an electrolyte which is gelatinous and non-porous at the time of making but turns to a firm porous mass which does not liquefy during the wording of the cell. Fig. 1 shows a form in which the zinc container a, surrounded by a cardboard casing e, is provided with openings f which may be near the top, as shown, or in the bottom. The top of the zinc container extends into the seal p through which a vent o passes. Instead of the openings f the zinc container may be provided with indentations or weak parts which become eaten away to form holes during the action of the cell. In a modification, shown in Fig. 4, communication between the two sides of the zinc container a is established over the top of the container which does not extend to the seal p. Fig. 5 shows a further modification in which the zinc container a extends to the top of the seal p but fits loosely within the casing e to provide ventilation for the external surface of the container. In all the forms an opening may be provided in the bottom of the zinc container. A space d may be provided below the container a to receive any liquid that may become free during the action of the cell. The carbon electrode h is surrounded by a depolarizer g consisting of manganese dioxide, graphite and a solution of zinc and ammonium chlorides, the mixture being compressed to an apparent density of about 1.5 and surrounded with muslin. Between the depolarizer and zinc container is the electrolyte consisting of a solution of zinc and ammonium chlorides containing a starch gel with ungelatinized starch granules suspended in it. The container is heated to convert all the starch into gel form, the surface of the electrolyte being finally covered with a layer of paraffin wax l. The seal rests on a cardboard washer n below which is a perforated celluloid ring m. The electrolyte may be introduced into the cell in dry form, half of the salts being incorporated in the depolarizer and half being mixed with fifty per cent of dried gelatinized starch and placed in the space between the depolarizer and zinc container. The openings in the zinc are covered with a laver of unabsorbent cotton wool to prevent liquid passing to the outside of the container, and a filling tube passes through the seal. Specifications 102,294, 128.316, and 152,818 are referred to.
Patent GB-214900-A (GB)
Title: Improvements in or relating to temperature-controlled valve apparatus for controlling the temperature or flow of steam or other fluids
IPC: F16K31/68
Filed: 1923-08-25
Abstract: 214,900. Gordon & Co., Ltd., J., and Ferguson, C. M. Aug. 25, 1923. Thermally-actuated valves. - A rotary cylindrical valve is actuated by a Bourdon tube thermometer, which, in an example, controls the admission of wet steam to a pipe conveying superheated steam to maintain a constant temperature in the latter. A Bourdon tube e is connected to a temperature - responsive device in a pipe conveying s u p e rheated steam. The tube actuates a valve controlling a pipe conveying wet steam to mix with the superheated steam and a pointer indicates the temperature at which the valve opens. The preferred form of valve is shown in Fig. 2. The lower end of the Bourdon tube H is secured to the upper member K of a coupling, the two members K, K<1> of which are adjustable by means of slots moving over bolts, and an indicator K<4> is provided to show the temperature at which the valve is set to open. A cylindrical valve M is used, having slots M<1>, the valve being rotatable on a sleeve N fixed to the cover J<1>. The valve spindle L is secured to the lower end of the valve. The ends of the valve M are formed with ridges M<3> to minimize leakage of steam, and a small drainage opening is also provided. The spindle may be lubricated by means of an opening 0, the oil discharging to a well O<1>. The valve is approximately balanced, but any end thrust is taken by a ball bearing R.
Patent GB-258250-A (GB)
Title: Improvements in or relating to centrifugal friction clutches
IPC: F16D43/18
Filed: 1926-09-01
Abstract: 258,250. Siemens & Halske Akt.- Ges. Sept. 12, 1925, [Convention date]. Dynamos, driving. - A centrifugal constantspeed friction clutch, comprising shoes 3 pivoted on a driven member 5 and pressed by adjustable springs 7 on to a driving-disc 2, is provided with a pot " electromagnet 9, which is mounted on the driven shaft 6 and is variably controlled to increase the grip, either to vary the maximum speed or to adjust the clutch for varying load. The current through the winding 10 may be controlled manually by a rheostat or automatically by including the winding in the circuit of a driven electric generator or in a shunt thereof. In one form, the armature 11, which is preferably resiliently held from the magnet 9, acts on bell-crank levers 13, Fig. 1, pressing directly on the shoes 3 or carrying the adjusting-screws 8 for the springs 7. In a modification, the armature 11, faced with nonmagnetic material, slides on pins 14, Fig. 3, carried by the member 2, and is attracted into direct frictional engagement with the member 5. The Specification, as open to inspection under Sect. 91 (3) (a), comprises also the application of the clutch to telegraphic apparatus. This subject-matter does not appear in the Specification as accepted.