baber/WOPTO huggingface dataset:
Patent GB-721092-A (GB)
Title: Improvements in or relating to fans
IPC: F04D29/46
Filed: 1953-05-06
Abstract: 721,092. Centrifugal fans. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. May 6, 1953 [June 2, 1952], No. 12571/53. Class 110 (1). A fan comprises a wall structure 17, 19 forming an inlet passage 27 leading to the axial inlet of the impeller 11 and having a circumferential slot 18, and volume control means normally located without the passage 27 and extendable through the slot 18 into the passage for the purpose of reducing the flow of fluid through the fan. The slot 18 is formed by a channel member 20 attached, as by welding, to the wall portions 17, 19 and containing an inflatable rubber tube 21 comprising the volume control means. To reduce the flow through the fan, the tube 21 is inflated by opening a valve 23 to admit compressed air from a constant pressure source 24. The tube then protrudes into the passage 27 and deflects the flow inwardly, as shown by the arrows, so that only a portion of the area of the blades 12 is effective. The scale of the pressure gauge 25 may be calibrated to indicate the volumetric flow through the fan.
Patent GB-1004832-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L31/111
Filed: 1962-04-02
Abstract: 1,004,832. Semiconductor devices. CLEVITE CORPORATION. April 2, 1962 [May 18,1961], No. 12638/62. Heading H1K. In a photosensitive PNPN switching diode at least one of the outer junctions has a smaller area than the middle junction and at least part of at least one of the layers adjacent the middle junction is thin enough to allow photons to enter the space charge layer of the junction and there generate electron-hole pairs. A device of the type shown in Fig. 1 is formed from a P-type wafer by diffusion of donor impurity into both faces to form an NPN structure with oxide layers over the N zones and etching to expose spaced areas of the N zones into which acceptor impurity is then diffused. After cleaning the resulting wafer is subdivided and each element formed therefrom provided with electrodes. In an alternative method parts of the outer zones of a PNPN block are masked and the block etched to the form shown in Fig. 6.
Patent GB-721096-A (GB)
Title: Clothes driers
IPC: D06F58/22
Filed: 1953-05-07
Abstract: 721,096. Clothes drying apparatus. LOVELL MANUFACTURING CO. May 7, 1953 [May 16, 1952], No. 12784/53. Class 34 (2). A tumbler-type clothes drier has the housing 15 surrounding the periphery of the drum 3 made cylindrical throughout three of the quadrants and substantially square in the fourth quadrant in which is located the suction inlet 21 of the fan 19, lint collecting between the drum 3 and housing 15 being deposited in this corner 22 and then drawn into the fan suction. Fan 19 has a discharge outlet 25 and airtight duct 27 in which is a lint trap having a base 28 carrying a screen 29 with a section 30 extending towards outlet 25 and co-operating with duct 27 to form a pocket receiving the blower discharge. When the trap is choked with lint the air flows through by-pass 34, 35 and the presence of lint on the floor warns the user to empty the trap. An electric heater 16 with reflector 17 and air intake slot 18 is located in an upper quadrant opposite the corner 22. A baffle 24 prevents movement of the lint out of corner 22.
Patent GB-1394352-A (GB)
Title: Solenoid valve
IPC: B60T8/50
Filed: 1973-03-16
Abstract: 1394352 Valves SOC ANON DBA 16 March 1973 [6 April 1972] 12791/73 Heading F2V In a solenoid-operated valve an armature 28 on energization of a coil 26 first moves a small diameter closure member 33 off its seat 36 to equalize pressure across a large diameter closure member 34 and then moves the latter off its seat 24 to interconnect an inlet 16 and an outlet 18. The armature 28 abuts the end of a rod 30 integral with the closure member 33 which slides in the bore of a ring 38 crimped in the closure member 34 until the head of the closure member 33 abuts the ring whereafter the two closure members move as a single unit away from the seat 24.
Patent GB-400302-A (GB)
Title: Improvements relating to herbal preparations, more particularly applicable as an external remedy for rheumatic ailments and arthritis
IPC: A61K36/00
Filed: 1932-05-04
Abstract: A preparation obtained by boiling elder leaves in water, together with a small proportion of a spreading agent such as linseed, is used as a liniment for the treatment of rheumatic ailments, or may be applied to articles of clothing or footwear. The water used should be distilled or soft water, or may be hard water if a small proportion of rum be added.  The elder leaves may be bruised and allowed to ferment before extraction.  It is suggested that the preparation may also serve as an insulator against electrical effects.
Patent GB-474773-A (GB)
Title: Improvements in or relating to carpet sweepers
IPC: A47L11/33
Filed: 1936-05-07
Abstract: 474,773. Carpet - sweepers. ENTWISLE & KENYON, Ltd., and REDFEARN, J. P. May 7, 1936, No. 12853. [Class 138 (i)] The spring C which applies pressure on the axles d of the floor wheels D is detachably secured in a groove b<1> formed by a bracket B when affixed to the end of the sweeper casing. The bracket shown is provided with a cam surface b adapted to engage the bail of the sweeper. A screw E may be fitted below the groove b<1>, if desired.
Patent GB-855593-A (GB)
Title: Improvements in chairs
IPC: A47C5/12
Filed: 1957-04-23
Abstract: 855,593. Nesting chairs. MILLER Inc., H. April 23, 1957, No. 12881/57. Class 52(2) Stackable chairs have pairs of splayed legs 24, 28 at each side connected by brace members 40 which support the corresponding brace members of a superposed chair. The brace member on one side has a hook 42 while that on the other side has a loop so that adjacent chairs can be coupled in rows as set out in Specification 855,594. The seat and back are moulded integrally, preferably in fibre glass, and have adhesively secured rubber or like pads 33 under the seat with internal bushes for securing screws 47 by which straps 31 welded to cross-bars connecting the upper ends of the legs are fastened to the seats.
Patent GB-754483-A (GB)
Title: Improvements in or relating to corsets and the like articles of wearing apparatus
IPC: A41C1/00
Filed: 1954-05-04
Abstract: 754,483. Corsets. SPIESSHOFER, F., BRAUN, C., and BRAUN, H., [trading as SPIESSHOFER & BRAUN EXPORTGES.]. May 4, 1954 [May 5, 1953], No. 12894/54. Class 141. A corset &c. has a supporting element in the abdominal part, the support 1, Fig. 1, being heart-shaped with free ends 3, 4 and consisting of a spirally wound wire flattened to strip form. The free ends may be extended towards the point and additional supports, e.g. horizontal or vertical flexible bars may be located within the member 1. The support may have concave curvature 10, Fig. 3, at its sides. The support is inserted in pockets between the different layers of material.
Patent GB-375933-A (GB)
Title: Improvements in or relating to padlocks
IPC: E05B67/18
Filed: 1931-05-01
Abstract: 375,933. Padlocks. MITCHELL, R., 3, Leighton Road, Kentish Town, London. May 1, 1931, No. 12901. [Class 44.] A padlock is locked by a key-operated bolt e which engages between the ends b, d of the pivoted shackle c. The bolt is slidably and pivotally mounted on the same pin h as the lock levers g. The free end b of the shackle may be formed as shown with a lug l which engages behind the lock casing or a pin m; the bearing k of the shackle is then of oval or other shape.
Patent GB-490152-A (GB)
Title: Improvements relating to hand tool handle fixings
IPC: B25G3/02
Filed: 1937-05-06
Abstract: 490,152. Tool handles. BRITISH PENS, Ltd., and HOOPER, T. B. S. May 6, 1937, No. 12931. [Class 61 (i)] Tools for cutting linoleum printing-blocks, cork stencils, &c. having a semicircular or circular stem b adapted to engage a corresponding recess d in the handle e are provided with one or more stamped-up projections c adapted to engage one or more notches f in the handle to hold the tool against rotation.
Patent GB-1038448-A (GB)
Title: Improvements in and relating to containers or carriers more especially for tetrahedral packages
IPC: B65D71/00
Filed: 1965-03-26
Abstract: 1,038,448. Transport container. A.B. TETRA. March 26, 1965 [May 8, 1964], No. 12971/65. Heading B8P. A transport container has a regular hexagonal pyramidic bottom 1 surrounded by a tapering peripheral wall 2. A flange 3 around the bottom is secured to the wall, the shape of the flange being such that containers can be stacked with the flange on one container fitting over the upper end of the container below it.
Patent GB-563747-A (GB)
Title: The production of hydroxy aryl aldehydes
IPC: C07C45/51
Filed: 1942-09-15
Abstract: Hydroxy aryl aldehydes are prepared in the form of their alkali metal salts by refluxing a hydroxy arylidene-amine with a strong alkali. The arylidene-amine may be obtained by the reaction of an amine with a hydroxy aryl dithio acid.  Any amine may be used, the preferred one being aniline.  Others mentioned include toluidine, anisidine, the naphthylamines and amino phenols.  In an example, the parent 2-hydroxy-1-naphthylidene amine is produced by adding aniline to an alcoholic solution of 2-hydroxy-dithionaphthoic acid, heating under reflux, and filtering hot.  The production of the aldehyde is carried out by treatment with caustic soda in either aqueous or alcoholic solution.
Patent GB-302639-A (GB)
Title: Improvements in apparatus for using the heat of hot water under pressure
IPC: F24D3/02
Filed: 1927-08-09
Abstract: 302,639. Brandt, H. Aug. 9, 1927. Divided on 302,621. Drawings to Specification. Generating by reduction of pressure. - In a high pressure hot water circulation system in which steam is generated for heating purposes by the reduction of pressure of the hot water, as described in Specification 302,621, the valve controlling the supply of hot water to the steam generating chamber is connected for simultaneous operation with the valve controlling the discharge of water from the chamber, or is operated automatically in accordance with the pressure in the chamber. Specification 2987/79 also is referred to.
Patent GB-1278043-A (GB)
Title: Improvements in or relating to disinfection processes
Inventor: DRUETT HENRY ARTHUR
IPC: A61L2/20
Filed: 1968-03-18
Abstract: 1278043 Gaseous disinfectants DEFENCE SECRETARY OF STATE FOR 18 June 1969 [18 March 1968] 13076/68 Heading A5G A process for reducing the number of microorganisms in an environment comprises reacting together in the gas or vapour phase ozone and an olefine and contacting the microorganisms with at least the initial products of the reaction. Suitable olefine materials are C 3-9  alkenes, cyclopentene, cyclohexene, cyclopentadiene, 1, 5-dihydrofuran, isoprene, vinyl ether, petrol, oil of aniseed and turpentine. Apparatus for producing the disinfectant is described comprising means for passing a stream of oxygencontaining gas (e.g. air) successively through ozonizing means (e.g. ozonizing lamps in a duct) and an olefine vapour producer, e.g. a wick from which a volatile olefine evaporates.
Patent GB-149788-A (GB)
Title: Improvements relating to fuel feeding and controlling devices for internal combustion engines
IPC: F02M67/12
Filed: 1919-05-24
Abstract: 149,788. Pyatt, T. May 24, 1919. Cylinders receiving liquid fuel.-A fuel valve 1 for Diesel engines is formed of two diameters, and the upper larger portion has a series of grooves 4 for split metallic packing-rings 5. The valve has two valve faces 7, 12 controlling respectively the air and fuel inlets 9, 10.
Patent GB-131645-A (GB)
IPC: B64D27/04
Abstract: 131,645. Parnall & Sons, and Bolas, H. July 3, 1918. Propelling. - A mounting for aircraft engines comprises a circular plate 3 in which the front plate of the engine is mounted in the ordinary manner, the plate 3 being connected to the engine ring 4, which is connected to the fuselage 6 by eight stays 5 arranged to form four triangular structures. The rear flange of the engine is coupled to a dished plate 7 of the usual type secured to the fuselage.
Patent GB-558311-A (GB)
Title: Electric wave transmission system
IPC: H04B3/10
Filed: 1942-09-18
Abstract: 558,311. Repeater systems. STANDARD TELEPHONES & CABLES Ltd. Sept. 18, 1942, No. 13168. Convention date, Oct. 31, 1941. [Class 40 (iv)] [Also in Group XL] In a system in which power current is fed to repeaters in a submarine cable over the cable conductors, the gain of the amplifiers is adjusted by varying the power current. As shown, a very low frequency generator 12, which may furnish a square wave, or a periodically varying resistance is provided in series with the direct current source 11 to furnish an A.C. component the effect of which diminishes in the remote parts of the cable. In the amplifier shown, the anode/cathode voltage is derived from the potential drop in all the heaters in series. The gain is controlled by an indirectly heated thermistor T1 in the #-path. The heater 27 of the thermistor derives current from a resistance 28 in the supply circuit, the effect of changes in the supply current being exaggerated by a directly heated thermistor T2 in series with the coil 27. By providing thermistors of various kinds in different amplifiers, various degrees of control can be exercised at different parts of the cable. Specification 557,028 is referred to.
Patent GB-1217827-A (GB)
Title: Apparatus for enabling under water working
Inventor: ITAMI YASUO
IPC: E02F5/00
Filed: 1969-03-13
Abstract: 1,217,827. Off-shore structures, dozers. JAPAN DEVELOPMENT & CONSTRUCTION CO. Ltd. 13 March, 1969 [18 Oct., 1968], No. 13234/69. Headings E1F and E1H. Apparatus for carrying out underwater work is such as to permit of direct visual observation by an operator in a submergible observation chamber 15 of a submergible working machine, e.g. a dozer 11, and of control of such a machine through controls 19 housed in the chamber. The chamber 15 is secured to the lower ends of rods 5 slidably supported for controlled vertical movement in a floating platform 1. The platform can be anchored by spuds 2, 2' and at least one anchor 3 and carries means 7 for generating and supplying power to the machine 11, to the winch means 22 controlling raising and lowering of the rods 5, and to the crane means for raising and lowering the machine 11 into and out of a docking space 27 in the platform.
Patent GB-132468-A (GB)
IPC: A24F27/04
Abstract: 132,468. Wise, F. W. April 30, 1919. Matches, boxes specially designed for.-The flange 4 of the lid 2 of a match-box is provided with a series of teeth or serrations 5 forming a striking-surface.
Patent GB-751279-A (GB)
Title: Improvements in sifting machines
IPC: B65G33/08
Filed: 1954-05-06
Abstract: 751,279. Sifting apparatus. KEMPER, K. (Kemper, E.). May 6, 1954, No. 13297/54. Class 117. To save floor space in e.g. a bakery, a flour sifter using a worm conveyer has the conveyer arranged vertically. As shown, a shaking screen 11, mounted in the bottom of the hopper 2 is vibrated by an eccentric on the drive shaft for feed-paddles 5 which pass the flour to a vertical worm 4 which conveys the flour to a sifting device (not shown) in the outlet. The conveyer tube 1 is rotatable so that the delivery pipe 6 may be turned in any desired direction. A cleaning opening 12 is provided at the foot of the tube.
Patent GB-468872-A (GB)
Title: Process for simultaneously obtaining krypton and nitrogen from air
IPC: F25J3/04
Filed: 1936-05-11
Abstract: 468,872. Obtaining krypton and nitrogen. JACKSON, L. MELLERSH-. (Soc. L'Air Liquide, Soc. Anon. pour L'Etude et l'Exploitation des Precedes G. Claude) May 11,'1936, No. 13298. [Class 8 (ii)] Nitrogen and krypton are obtained simultaneously from air by liquefaction and rectification including washing with liquid nitrogen, introduced at the top of the low-pressure column by a pipe E, the liquid mixture of oxygen and nitrogen into which this nitrogen is converted in the operation is caused to wash a quantity of air greater than this liquid mixture, for the extraction of krypton. For this purpose, supplementary air is introduced by a pipe I into an enlarged part B<1> of the upper column and the excess air from which the krypton has been extracted is removed by a pipe K. In modifications, a single stage rectifier may be used, or a column comprising an enlarged base B<1> through which excess air is passed surmounted by vertical tubes in which condensation with production at the top of liquid nitrogen takes place, these tubes being cooled by the liquid mixture of nitrogen and oxygen collecting in the base.
Patent GB-607691-A (GB)
Title: Improvements in and relating to refrigerating machines and to evaporators therefor
IPC: F25B39/02
Filed: 1945-05-30
Abstract: 607,691. Refrigerators. PHILCO RADIO & TELEVISION CORPORATION. May 30, 1945, No. 13561. Convention date, May 30, 1944. [Class 29] The evaporator is partially covered by insulating material 7 the uncovered portions having readily detachable members 12 of high thermal conductivity in close contact therewith, these members constituting the only exposed parts of the evaporator on which, frost will collect. As shown in Fig. 2, the evaporator comprises an S-shaped member 7 of a material of low thermal conductivity, e.g. mouldable plastic, in which are embedded refrigerant tubes 8 of half-round section with the flat surfaces exposed at the upper surfaces of the three horizontal portions 9, 10, 11. These exposed surfaces form seats for ice trays 12 which thus form the cooling means for the cabinet and can be removed when frosted. Brackets 13 space the evaporator from the rear wall of the cabinet to allow circulation of air around the ice trays. A partition may be supported by brackets 15. The metal grids in the ice trays have upstanding portions 16 for heat transfer. Fig. 5 shows a modification in which the evaporator comprises metal plates 17, 18 with passages between them for the circulating refrigerant, the plates being covered with insulating material 19 except at parts 20 which form seatings for the ice trays. The plates are mounted in inclined tiers to promote air circulation.
Patent GB-135662-A (GB)
IPC: E01B25/18
Abstract: 135,662. Forbes, A. W. Dec. 14, 1918. Rope railways.-Travelling cables are supported by an endless chain moving over a flat or curved quadrant bearing-surface 1. The chain consists of grooved slides 4 connected by side links 5, and may pass over guide-pulleys 6. A travelling chain of rollers 7 may be provided, and may engage a renewable wearing-strip 9. The device may be formed with an oil well, the slide 4 being recessed to receive oil and deposit it on the surface 1. The Provisional Specification states also that some of the slides 4 may have spring expansion means.
Patent GB-938393-A (GB)
Title: Cycloalkene diol
IPC: C07D303/04
Filed: 1962-04-09
Abstract: The invention relates to cyclooct-5-ene-1,2-diol.  This compound may be prepared by treating cis-1,2-epoxycyclooct-5-ene with a mineral or organic acid, a number of which are specified at 20-150 DEG C. in the presence of water and (or) an inert solvent. Examples are given.  The product may be hydrogenated to yield cyclooctane-1,2-diol.  The bis-phenylurethane derivative of the product is described.  The cis-1,2-epoxycyclooct-5-ene used as starting material is obtainable by treating cis-cis-cyclooct-1,5-diene with acetaldehyde peracetate solution in ethyl acetate.
Patent GB-1535883-A (GB)
Title: Stock feeder for punch presses and the like
IPC: B21D43/11
Filed: 1977-03-31
Abstract: 1535883 Feeding strip material A W SCRIBNER 31 March 1977 [10 May 1976] 13707/77 Heading B3W [Also in Division F2] A pneumatically-operated feeder for intermittently advancing stock into the work station of a punch press comprises a feed slide 14 movable on a main frame 11 and provided with a gripper bar 50 actuated by a fluidpressure motor 60, 65, and a fluid motor 25, 32, 33 for actuating the slide, both fluid motors being under the control of a valve 95. The piston 65 of gripper motor is connected by a flexible pipe 125 to the valve 95 such that air may be exhausted from or fed to the motor upon manual-actuation of the valve. The valve is also connected to the slide motor such that upon actuation thereof both motors are operated simultaneously. The material is braked during feeding by means of spring-loaded collars (137). Fig. 2 (not shown), the collars being arranged to engage only the edges of the strip.
Patent GB-668188-A (GB)
Title: Improvements in and relating to tanks
IPC: B65D6/12
Filed: 1949-05-23
Abstract: 668,188. Collapsable tanks. UNTHANK, D. G., and SILLEY, H. A. J. May 19, 1950 [May 23, 1949], No. 13759/49. Class 69 (i). A collapsable closed tank which is straight-sided' in plan comprises a rigid top 26 and a rigid bottom 20 connected by flexible side walls 25 capable of being folded in a plurality of superimposed pleats, rigid horizontal frames 29 adapted to establish the outer folds of the pleats and means, such as the linking plates 30 and hinge pins 35, for establishing the inner folds of the pleats and for maintaining the frames in vertical alignment. The walls 25 consist of an inner sheet of fabric-reinforced flexible material and two outer sheets of canvas and are anchored to the frames 29 by loops 38. The tank bottom 20 is reinforced at its edges by channel bars 23, thus forming a rigid extension to the walls, and a filling and discharging line 45 and an air vent line 50 are fitted. The tank is preferably square or hexagonal in plan so that several may be placed together in a cellular assembly and stanchion supports of circular or cruciform section provided at common points so that the tanks may slide up and down them when expanding or collapsing. In the collapsed position the tank may be supported by the tank top engaging truss support members mounted inside the tank or by radially projecting support members engaging: truss support members disposed outside the tank.
Patent GB-928890-A (GB)
Title: Improvements in method of burning in photoresists
IPC: G03F7/40
Filed: 1962-04-10
Abstract: 928,890. Photomechanical focaling plate procedure. MASTER ETCHING MACHINE CO. April 10, 1962 [Nov. 22, 1961], No. 13790/62. Class 98 (2). The burning in of photoresists of bichromated shellac or polyvinyl alcohol is effected by immersing the metals carrying them into a salt bath of 30 to 60% of sodium or potassium nitrate and 40 to 70% of sodium nitrate at 300‹ to 450‹ F. The metals may be zinc, copper, aluminium, steel or stainless steel, the immersion may be for <SP>1</SP>/ 2 -2<SP>1</SP>/ 2  minutes and then any film of the salts may be removed by quenching in water, after which the metals are ready for etching. Advantages lie in avoidance of overburning and protection of non-image parts against oxidation by air. The process does not apply to bichromated glue resists.