baber/WOPTO huggingface dataset:
Patent GB-1205343-A (GB)
Title: A gripping device for lifting a tetrapod
Inventor: MAEDA KIICHI
IPC: B66C1/62
Filed: 1968-06-05
Abstract: 1,205,343. Gripping devices for lifting tetrapods. NIPPON TETRAPOD CO. Ltd. 5 June, 1968, No. 26788/68. Heading B8H. To grip and lift a tetrapod 12, Fig. 4, a lifting device, Fig. 1, is lowered over the tetrapod in the position shown, so that arms 6 1 , 6 2 , 6 3  lie over the three lower arms of the tetrapod. A cap 4 is now lowered by means of a cable 5 so that arms 6 1 , 6 2 , 6 3 , which are attached to the cap by cables 11 1 , 11 2 , 11 3  are lowered about pivots 7. This movement brings holding plates 9 1 , 9 2 , 9 3  into engagement with the ends of the legs of the tetrapod. Tension is now applied to a lifting cable 1 and this raises rods 3 1 , 3 2 , 3 3  and the pivots 7 thereby pulling the plates 9 1 -9 3  into contact with the tetrapod. Further lifting of the cable 1 raises the tetrapod.
Patent GB-519181-A (GB)
Title: Driving mechanism for operating photographic contact printing machines
IPC: G03B27/22
Filed: 1938-09-15
Abstract: 519,181. Photographic contact - printing apparatus. MORSE, S. H. Sept. 15, 1938, No. 26895. [Class 98 (ii)] Variable speed driving mechanism for contact-printing apparatus comprises a friction disc connected with the source of power, for example an electric motor, and a friction disc at rightangles to the first-mentioned disc engaging with its peripheral edge the plane surface of the firstmentioned disc, the second-mentioned disc being mounted upon a shaft 'transmitting through gearing the drive to the part of the apparatus to be driven, the second-mentioned disc being held against the face of the first-mentioned disc by the load applied to the shaft or shafts. As shown, the plane surface of the friction disc e mounted on the shaft d of an electric motor c is engaged by the peripheral edge of a friction disc f keyed to and slidable on the shaft g carrying a pulley t transmitting the drive through a belt a, a second pulley v, reduction gearing w, and a chain or belt to the rollers carrying the endless band or bands drawing the sensitive material and tracings round the outside of an internally illuminated glass drum. One end of a fork l engages a grooved collar n secured to the disc f and the other end is supported on a guide rod o. The centre is secured to a rod m provided at one end with a toothed rack p engaged by a pinion q on a rod r provided with a knob s, rotation of which accordingly varies the speed and alters the direction of the drive. A shaft 4 driven from the pulley 6 on the motor shaft d carries pulleys 9 driving fans mounted in the ends of the glass drum through belts. The bearing h<1> for the shaft g can move slightly by reason of the slots j and the pull of the driving belt u moves the shaft g to pull the friction disc f against the face of the friction disc a. The driving mechanism may also be applied to apparatus of the kind in which both the band and the glass drum are rotated. A second friction drive on a doubleshafted motor may be provided for twin contact-printing machines.
Patent GB-721790-A (GB)
Title: Improvements in or relating to an adjustable bulldozer
IPC: E02F3/84
Filed: 1952-10-27
Abstract: 721,790. Earth excavating apparatus, bulldozers. RUSTON-BUCYRUS, Ltd. Oct. 27, 1952 [Nov. 5, 1951], No. 26909/52. Class 68(1). [Also in Group XXIX] The blade 22 of a bulldozer assembly is pivotally mounted to turn about the fore and aft axis of a supporting yoke 15 by a fluid actuated motor 33 pivotally positioned between the yoke and the top of the blade. Fluid under pressure is supplied from a pump P to a control valve that may be set in one of five positions. Position 1 permits the fluid to pass through port 42R to one end of the cylinders of the fluid actuated motors 44 to rotate the yoke 15 about the pivotal connections 18 on the tractor to raise the blade 22, fluid exhausting from the other end of the cylinders back through port 42L of the valve. Position 2 causes a reversal of the fluid flow described for position 1 so that the blade is lowered. Position 3 causes closure of ports 42L and R so that fluid from the pump circulates in a closed circuit back to the reservoir. Position 4 results in the interconnection of both ends of the cylinders 44 to allow the blade to remain in a given position, whilst position 5 permits of a slow gravityeffected lowering of the blade. Connected to the fluid supply conduits of the motors 44 is a valve 50, that can shut off or reverse the direction of fluid supply to the conduits of the bladetilting motor 33. The tilting of the blade 22 can be effected by either isolating the pump P and displacing fluid from the cylinders 44 into the cylinder of the motor 33 as the raised yoke falls due to gravity, or by supplying fiuid from the pump P. The blade is held to the supporting yoke 15 by one or more pairs of interlocking arcuate members 29a, 29b, the centre of curvature of each member being that of the pivot pin 27 about which the blade rotates. The extent of the interlocking members is such that when the blade is rotated beyond a certain angular measure the members disengage and the blade may be removed.
Patent GB-538264-A (GB)
Title: An improved device for sealing leaks in containers
IPC: B65D25/20
Filed: 1939-09-29
Abstract: 538,264. Stopping leaks in pipes. McCULLOCH, M. L. Sept. 29, 1939, No. 26914. [Class 99 (ii)] [Also in Group XXXIV] A device for sealing leaks in containers, particularly emergency water-supply dams made of canvas or like material, and stated to be applicable for stopping leaks in hose, comprises a cord, wire &c. 6 having one end secured by a knot 11 to one end 13 of a coiled spring 7 adapted to be threaded through the puncture 4 in the wall 5 of the container. The cord &c. passes through an eye 14 at the base of the spring, a soft rubber pad 10, and a backing- plate 8 formed with pressed-out cleats 9. In use, the spring 7 is drawn down on to the inner surface of the wall 5 by pulling on the cord, the parts 10, 8 are pressed firmly against the outer surface of the wall and secured by looping the cord around the cleats 9. For sealing large rents, a pad 10 of appropriate dimensions may be secured by a number of spring members and associated cords &c.
Patent GB-1377665-A (GB)
Title: Thermal insulation of tubes
IPC: F16L59/065
Filed: 1972-06-09
Abstract: 1377665 Insulated pipes LINDE AG 9 June 1972 [11 June 1971] 26921/72 Heading F2P A pipe 1 is insulated by (a) forming a multilayer tubular insulator 3 whose layers are interconnected (e.g. by sewing 4), (b) making a radial cut 6 longitudinally of the insulator, (c) placing the formed and cut insulator on the pipe.  The layers (e.g. from 10 to 100) of the insulator may be of fabric or metallized synthetic resin foil, or may be of alternating fabric and metal foil construction. It is preferably made by convolute winding of sheet materials, and in the alternating construction the metal foil may be narrower than the fabric so that metal is not exposed at the ends of the insulator. Although the preferred method of holding the layers together is sewing 4, alternatives include glueing, spot welding, and the use of a pin strip. A removable pin strip may be used to hold the windings in place while adhesive sets. A plurality of insulators are arranged in endto-end contact on a pipe 1, the cuts 6 being preferably filled by a sheet 5 of insulant glued in place. The ends of adjacent insulators may be separated by insulating discs and the insulators may be held in place by bindings. As shown in Fig. 2 a plurality of concentric insulators 8, 11, 13 may be used, each of the inner layers being held by bindings 9, 12. The spacers 10 between the ends of adjacent insulators may be triangular and serve to support the insulated pipe 7 within a vacuum casing 14. It is stated that when coaxial insulators are used the end to end junctions may alternatively be staggered.
Patent GB-444400-A (GB)
Title: Improvements in and relating to gaseous electric discharge devices
IPC: H01J61/56
Filed: 1934-09-19
Abstract: 444,400. Discharge apparatus. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and RUFF, H. R., Waverley, Overslade Lane, Overslade, Rugby. Sept. 19, 1934, No. 26935. [Class 39 (i)] A discharge device having a constricted discharge or arc, such as the high-pressure lamp shown, has means for controlling magnetically the position of the arc comprising an energizable coil A wound round the envelope along the axis of the arc. The coil may be part of a lead to one of the electrodes, and an additional high resistance coil shunted across the mains may be employed. The magnetic field may be used to bow the arc into any desired shape, but particularly to maintain the arc horizontal against the action of convection when the lamp is operated horizontally. In this case a switch adapted automatically to render the magnetic means ineffective when the lamp is vertical may be included in the device. A gravity-controlled mercury switch is described for this purpose which is adapted to short-circuit a series-connected deflecting coil. Specifications 429,750 and 435,310 are referred to.
Patent GB-223403-A (GB)
Title: Improvements in water tube boilers
IPC: F22B17/12
Filed: 1923-10-29
Abstract: 223,403. Richardsons, Westgarth, & Co., Ltd., and Taylor, L. Oct. 29, 1923. Water-tube boilers. - In a water-tube boiler, nests of water-tubes n connected to top and bottom headers t, b are arranged in two pairs of parallel rows which converge upwardly towards each other and form the sides of the combustion chamber, a steam and water drum d placed between the top headers serving to close in the combustion chamber at the top. The tubes are inclined to the vertical at an angle less than 30‹ and not less than 10‹. A superheater h is arranged between the tube nests on one or both sides of the boiler. Air heaters m are fitted in the uptakes.
Patent GB-1111528-A (GB)
Title: Semiconductor device and method of making same
IPC: H01L29/78
Filed: 1965-06-25
Abstract: 1,111,528. Field effect transistors. RADIO CORPORATION OF AMERICA. 25 June, 1965 [23 July, 1964], No. 27132/65. Heading H1K. A field effect transistor consists of a monocrystalline semi-conductor layer of one conductivity type with more heavily doped source and drain regions of the same conductivity type defining a channel the current in which is modulated by varying the bias on a gate electrode insulated from the channel. The layer is supported on but insulated from a substrate. A preferred device (Fig. 7) is made by first bonding together steam oxidized faces of a pair of lightly doped N-type silicon wafers under heat and pressure and then grinding and lapping one of the wafers 10a to a thickness of 0À05-4Á. Source and drain regions S, D, are formed by reoxidizing the lapped surface to a depth of 2000 Š, forming apertures in the oxide by photolithographic techniques and diffusing donor impurity, preferably from phosphorus pentoxide vapour, through them. Finally the gate, source, and drain electrodes 30, 32, 34 are etched from an overall vapour deposited layer of aluminium by a photolithographic process and leads soldered or thermocompression bonded to them.
Patent GB-812300-A (GB)
Title: An attachment for automatically injecting liquid soap or detergent into clothes-washing machines
IPC: D06F39/02
Filed: 1956-09-05
Abstract: 812,300. Washing-machines. McDERMOTT, J. W. A. Sept. 5, 1957 [Sept. 5, 1956], No. 27184/56. Class 138 (2). An attachment for automatically injecting liquid soap or detergent into a clothes-washing machine comprises a receptacle 1 having an outlet 3a through which a charge is injected into the washing-tub of the machine, a valve 3 actuated by the level of water in the tub for opening the outlet 3a or operated by a time switch, or a pressure switch responsive to the level of water, and a second valve 2 opening at (a) predetermined time(s) during the sequence of operations to connect the receptacle 1 to the source of supply for recharging through an inlet 2a. Valves 2 and 3 may be electrically operated solenoid valves, the former being controlled by an electrical impulse from the timer motor switch-box on the washing-machine. The receptacle 1 may be fitted with a control for the air pressure therein. The housing 7 for the valve mechanism may be of plastic and the receptacle of transparent plastic, glass or like material.
Patent GB-204221-A (GB)
Title: Bedstead joints and the like
IPC: F16B12/56
Filed: 1922-10-09
Abstract: 204,221. Rogers, G. A. Oct. 9, 1922. Joints for bedsteads. Two half-collars A, B meet around the pillar C, and are secured by a screw D passing into a member E which receives the angle iron or wire mattress. In a modification, Fig. 10, only one half-collar B is used and is secured by a screw F with a hooked end which is inserted into a hole in the side of the pillar.
Patent GB-972771-A (GB)
Title: Improvements in or relating to hydrostatic bearing systems
Inventor: CAMERON ALASTAIR
IPC: F16C32/06
Filed: 1959-08-10
Abstract: 972,771. Fluid bearings; lubricating; valves. DOWTY HYDRAULIC UNITS Ltd., and A. CAMERON. Nov. 10, 1960 [Aug. 10, 1959], No. 27274/59. Headings F2A and F2V. A control valve for regulating the supply of fluid from a source of substantially constant pressure to a fluid bearing comprises a variable restrictor valve, a movable pressure-responsive member subject in one direction to the fluid pressure at the bearing and in the opposite direction to an opposing force which increases in magnitude when there is an increase in fluid pressure at the bearing. In an embodiment, the valve 14 comprises a housing having parts 15, 16 which are screwed together, the part 15 having a centrally disposed inlet connector 17 connected by a pipe 18 with a pump 19 which supplies lubricant at constant pressure, and the part 16 having a centrally disposed connector 21 connected by a pipe, not shown, to a reservoir, not shown. The inlet connector 17 leads to a bush 22 in the housing part 15 which receives a needle 25 screwably attached to a piston 24, mounted in a bore 23 of the housing 15. The piston 24, which is the pressure-responsive member, is urged by a spring 26 so that the restrictor valve is closed when the pump 19 which supplies the pressurized oil is stationary. When the pump is operated the oil is forced along a pipe 18, into the inlet 17 of the housing 15, through the restrictor valve and into an annular chamber 27 which is connected by radial holes 28 to a groove 29 formed in a ring 31 which surrounds the housing 15. The groove 29 leads to an outlet connector 34 having a pipe 13 attached thereto which conveys the oil to a recess 12 in the bearing in which a shaft 10 is maintained concentric. In another embodiment, the valve has an inlet connector 41 which opens into a chamber 42 having an orifice 43 which connects to a cylinder bore 44. The latter is connected to a cylinder bore 46 by a step 45, the bore 46 having a cross-sectional area twice that of the bore 44. A stepped piston has a portion 47 in the bore 44, a portion 48 in the bore 46, a needle 51 attached thereto, and is urged by a spring 49. When the pump 19 is stationary the restrictor valve is opened by the spring 49 and when the pump is operated the oil is passed through a connector 41 to a chamber 42, past the restrictor valve into a restricted passage 52 leading to the bearing recess 12 via the pipe 13, which is also connected by a pipe 53 to the bore 46. An increase of bearing-load causes a reduction of flow through passage 52 and an increase of flow in passage 53 so that the piston is moved and the restrictor valve is opened.
Patent GB-308230-A (GB)
Title: Improvements in and relating to nitrocellulose solutions and the like
IPC: C08L1/18
Filed: 1927-10-14
Abstract: 308,230. Nobel Industries, Ltd., (Dupont de Nemours & Co., E. I.). Oct. 14, 1927. Coating-compositions. - Nitrocellulose solutions, particularly for use in making leather substitutes, comprise a vegetable oil which produces stickiness, such as blown castor, cottonseed or rapeseed oil, and a sufficient quantity of non- volatile paraffin or naphthene hydrocarbon oil to overcome the stickiness. A suitable proportion of hydrocarbon oil is 2-5 per cent of the total oil content. The compositions are preferably free of solvent softeners such as tricresyl phosphate, dibutyl phthalate, &c. Examples of compositions are given which specify the use of benzol and ethyl acetate as solvents, and the addition of pigments. Specification 2569/00, [Class 140, Waterproof &c. fabrics], is referred to.
Patent GB-381715-A (GB)
Title: Improved form of linear marking off gauge
IPC: B25H7/04
Filed: 1931-10-02
Abstract: 381,715. Tools for setting-out work. TYLER, R., 100, Westwood Road, Coventry. Oct. 2, 1931, No. 27405. [Class 61 (ii).] A gauge for the linear marking-off of work comprises a straight base A carrying an arm B, formed integral therewith, extending along and above the base, so as to be movable laterally and vertically relative to the base. The end of the arm B is bent downwards to form a scribing point C. In use, the gauge is placed on the work with its base A alongside a rule and is then adjusted until the point C coincides with a required rule division, whereupon B is depressed so that C makes an indentation ; the process is repeated for another division to complete the operation. The device is preferably made from metal and the other end D may be formed as a scribing point.
Patent GB-577816-A (GB)
Title: Improvements in or relating to the production of toluene
IPC: C07C1/207
Filed: 1939-10-07
Abstract: Toluene is prepared by the catalytic hydrogenation of phthalic acid or anhydride using a temperature of 300-450 DEG  C., an excess of hydrogen under a pressure of at least 100 atmospheres and a catalyst comprising an oxide or sulphide of vanadium, tungsten or molybdenum. The amount of hydrogen may be up to five times that theoretically necessary.  According to the example, phthalic anhydride mixed with a five-fold excess of hydrogen and preferably preheated is pumped under a pressure of 200 atmospheres through molybdic acid deposited on clay pellets maintained at a temperature of 375 DEG  C.  Toluene and water are removed from the products by cooling and the residual gas returned to the system. To reactivate the catalyst, it is heated to about 500 DEG  C. to oxidise the carbonaceous deposits and the residue reduced in hydrogen at 400-450 DEG  C.  Specification 314,035, [Class 2 (iii)], is referred to.
Patent GB-394848-A (GB)
Title: Improvements relating to tables, chairs, and similar furniture
IPC: A47B91/16
Filed: 1932-10-03
Abstract: 394,848. Furniture legs. HECKT, W., 37, Burgstrasse, Hamburg, Germany. Oct. 3, 1932, No. 27458. Convention date, Jan. 28. [Class 52 (i).] Comprises a stabilizing-device for articles of furniture with a plurality of legs, wherein two legs are interconnected through the intermediary of a brake or locking device so that the legs are fixed automatically in adjusted position after adaptation to unevenness of the supporting surface. As shown, two table legs b1, b2 are bored to receive auxiliary legs c1, c2, which are each secured against slipping out when the table is lifted by means of a collar and are connected by balls d to the ends e1, e2 of a band brake e. By this means, sliding of the legs c1, c2 within the bores of the legs b1, b2 is permitted, the legs being locked in adjusted position by the band brake e.
Patent GB-1376713-A (GB)
Title: Process for the preparation of benzimidazol-2-yl-carbamic acid alkyl esters
IPC: C07D235/32
Filed: 1973-06-08
Abstract: 1376713 Benzimidazol-2-yl-carbamic acid alkyl esters BAYER AG 8 June 1973 [8 June 1972 18 Jan 1973] 27460/73 Heading C2C A process for the preparation of a benzimidazol-2-yl carbamic acid alkyl ester of the general formula wherein R<SP>1</SP> is (C 1 -C 12 ) alkyl optionally substituted by alkoxy, alkylsulphenyl, nitrile, carbamide, alkenyl, alkynyl or halogen; R<SP>2</SP> is hydrogen, halogen or (C 1 -C 4 ) alkyl or alkoxy; and R<SP>3</SP> is hydrogen or (C 1 -C 8 ) alkyl, comprises reacting a 2-aminobenzimidazole of the formula wherein R<SP>6</SP> is hydrogen or R<SP>5</SP>; R<SP>5</SP> is a group of the formula wherein R<SP>7</SP> and R<SP>8</SP> are (C 1 -C 10 ) alkyl or aryl and X is halogen, nitro or (C 1 -C 3 ) alkyl or alkoxy; with a compound of the formula R<SP>4</SP>.O.R<SP>1</SP> wherein R<SP>4</SP> is hydrogen or R<SP>5</SP>, provided that R<SP>4</SP> and R<SP>6</SP> do not simultaneously represent hydrogen or R<SP>5</SP>. The reaction is preferably carried out in a solvent at a temperature of from 20 to 150 C. The 2-aminobenzimidazole is suitably reacted first with a carbonate of the formula  and then with an alkanol of the formula R<SP>1</SP>.OH. The compounds of the invention possess fungicidal and mite-ovicidal properties.
Patent GB-466249-A (GB)
Title: X-ray film assembly
IPC: G03C5/17
Filed: 1936-10-09
Abstract: 466,249. Intensifying screens for radiography. KALI-CHEMIE AKT.-GES. Oct. 9, 1936, No. 27496. Convention date, Oct. 9, 1935. [Class 98 (i)] In an assembly comprising two fluorescent foils one on each side of a photographic film, the fluorescent material on the rear foil is entirely, or on the average, of finer grain than that on the front foil. The rear foil may contain grains as coarse as, or even coarser than those of the front film provided that they are mixed with sufficient finer grains to reduce the average grain size below that of the front foil. In an example using calcium tungstate, the front foil has a grain-size from 3 to 5Á, and the rear foil consists of a portion of the same grain-size mixed with an equal portion of grain-size 0À5 to 1Á. Reference is made to foils of calcium tungstate of different thickness or in different states of crystallization.
Patent GB-402069-A (GB)
Title: Improvements in or relating to television and like apparatus
IPC: H04N3/04
Filed: 1932-03-11
Abstract: 402,069. Television. HAZELL, H. F., 6, Kilmartin Avenue, Norbury, and DENT, R. H., The Chuocks, Compton Avenue, Hampstead, both in London. March 11, 1932, No. 27739/33. Divided on 402,076. [Class 40 (iii).] At a receiving-station tubular neon lamps 1, Fig. 2 (plan) are lit up successively through a distributer and are scanned by apertures 3, Fig. 1 (elevation) in an endless band 2. At a transmitting-station light-sensitive cells are substituted for the lamps. The lamps or cells 1 are staggered as shown in order to reduce the width of the bank. In modifications (1) the lamps or cells 1 may be replaced by one or more lamps which move step by step ; (2) each lamp or cell may have a separate screen 2, which is coiled on rollers and is restored as soon as it has completed its scanning movement; (3) the lamps or cells may be ignited by induction through fixed coils coupled successively to a moving coil; (4) stereoscopic or coloured images may be produced by the use of two or more lamps 1 instead of each lamp ; (5) lenses may be associated with the lamps or cells.
Patent GB-442902-A (GB)
Title: Process for producing porous oxide layers on aluminium and aluminium alloys for photographic purposes
IPC: C25D11/08
Filed: 1934-09-27
Abstract: 442,902. Electrolysis. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Sept. 27, 1934, No. 27744. Addition to 407,830. [Class 41] [See also Group XX] In the process of the parent Specification, the porous layer is formed on the surface of aluminium or aluminium alloy by anodic oxidation in chromic acid solution at a high temperature of more than 40‹ C., for example 65‹ C., and at a low constant bath voltage of below 25 volts, for example 20 volts. A white layer is produced with 20 per cent chromic acid solution, and a layer with a metallic lustre with 3 per cent chromic acid solution. The time of treatment may be 30 minutes.