baber/WOPTO huggingface dataset:
Patent GB-311219-A (GB)
IPC: B07B1/40
Filed: 1928-07-17
Abstract: 311,219. Bamagmeguin Akt.-Ges. May 7, 1928, [Convention date]. Machinery, utilizing inertia to obtain movements in. - In screening-apparatus of the kind comprising balanced, oppositely reciprocating screens, the latter are indirectly connected through springs to a moving frame which is also resiliently mounted so that positive movement of one screen induces equal and opposite movements in the other. In the arrangement shown, screens b, blare suspended by parallel rods c in a. frame a to which they are also connected by springs l, l<1>. The frame has freedom of movement on a sub-structure d. Movements are imparted to the screen b from an electric motor g, eccentric shaft h, connecting rod i, and springs k. Excessive speed of the motor is controlled by a switch n actuated by a spring device p, an abutment m on one of the screens, and a lever r. The Specification states that provision is made for increasing the stroke of the screens at definite intervals by a special series resistance.
Patent GB-1213069-A (GB)
Title: Improvements relating to semi-conductor devices
Inventor: BERKNER ROLF
IPC: H01L23/31
Filed: 1968-05-02
Abstract: 1,213,069. Semi-conductor devices. SEMIKRON GES. FUR GLEICHRICHTERBAU UND ELEKTRONIK m.b.H. 2 May, 1968, No. 20767/68. Heading H1K. The reverse characteristics of semi-conductor devices are stabilized by a process in which the surface of the device is contacted with a mixture containing an organic compound which is able to act as a co-ordinating getter for impurities on the surface and containing a prepolymer or the components of a polymer, the system being heated at temperatures of up to 200� C. for from 2-24 hours to complete polymerization and effect gettering. The mixture may be a liquid which is applied to the surface by usual methods or (when using a prepolymer in the mixture) may be a solid preform fitted to the body. Polymers formed may be silicone resins, polyester resins, glyptal resins, or epoxy resins. Gettering compounds suggested are hydroxy- and amino-anthraquinones, xanthenes, phthalocyanines, and azo-dyestuffs.
Patent GB-1095803-A (GB)
Title: 6ª‰,17ª‰- or 3, 17ª‰-substituted androstanes
IPC: C07J75/00
Filed: 1965-05-17
Abstract: Novel steroids of the formulae <FORM:1095803/C2/1> and <FORM:1095803/C2/2> (wherein R and R11 are each hydrogen or C1- 7 alkyl and R1 is hydrogen, C1- 7\t alkyl or C2- 8 alkanoyl) are prepared by heating in a closed container a steroid of the formula <FORM:1095803/C2/3> (wherein A is tolyl, phenyl or C1- 7 alkyl) with an excess of an amine of the formula RNHR11 wherein R and R1 are H or alkyl to a temperature of at least 75 DEG  C. for at least 15 minutes, whereby 5,6-saturated starting materials yield 3-amino products and D 5-starting materials yield 3,5-cyclo-6-amino products, and, when required, acylating these products. 3a -Amino-b -hydrogen compounds are made from 3b -hydroxy-5b -hydrogen compounds by treatment with an alkyl or aryl sulphonyl chloride to give the starting materials described above and treatment of these by the process of the invention. Similarly, 3b -amino-5a -hydrogen compounds are prepared from 3a -hydroxy-5a -hydrogen starting materials, i.e. inversion of configuration occurs in the 3-position.  17-Esters can be hydrolysed to the free acids which may in turn be esterified. N-unsubstituted products can be reductively alkylated.
Patent GB-614303-A (GB)
Title: Improvements in or relating to polyvinyl resin compositions
IPC: C08K5/057
Filed: 1946-05-30
Abstract: Polyvinyl resins are stabilized by admixing therewith an alcoholate of tin.  Resins specified are polyvinyl acetate, butyrate, chloride and butyral and polystyrene.  Tin ethylate and hexylate are specified.  The mixing may be carried out using a common solvent such as benzene.  Plasticized vinyl resin coatings may be treated by a spray of the alcoholate in a solvent.  The composition may be pressed into plates or injection moulded.  The Specification as open to inspection under Sect. 91 describes also the use of other heavy metal alcoholates excepting those of the alkaline earth metals.  This subject-matter does not appear in the specification as accepted.
Patent GB-1340403-A (GB)
Title: Electron beam recording materials
IPC: G01T1/08
Filed: 1971-04-19
Abstract: 1340403 Electron beam apparatus FUJI PHOTO FILM CO Ltd 19 April 1971 [3 Feb 1970] 20935/71 Heading H1D [Also in Division G2] Distortion of the image produced on a silver halide photo-sensitive layer by an electron beam due to charge accumulation on the layer, is prevented by a metal film 10A to 3 microns thick which is evaporated over the layer, an intermediate protective layer being provided to prevent chemical reaction between the metal and the layer. The metal film is preferably 10<SP>2</SP>-10<SP>4</SP>Š thick and may be of cadmium, zinc, selenium, magnesium, indium, silver, aluminium, copper, gold, germanium, titanium, antimony, bismuth, lead, manganese, gallium, beryllium or tin and should be evaporated in a high vacuum at a temperature below 1000‹ C. to avoid fogging the silver halide. After exposure the metal film may be removed either before or during the developing and fixing treatment. The protective layer may be watersoluble, alkali-soluble, organic solvent soluble, or water insoluble but water-permeable. Alternatively there may be two layers, the first water-permeable and insoluble in organic solvents and the second water-insoluble and soluble in organic solvents. The protective coat should be 0À1-5 and preferably 0À2-2 microns thick. The silver halide may be an emulsion or an evaporated layer. In one example an emulsion containing silver chloro-bromide is coated on a tri-acetyl cellulose film to a dry thickness of 4 microns and coated with a one micron thickness of gelatine on which zinc is evaporated at 340‹ C. at a pressure of 10<SP>-4</SP> mm. to a thickness of 500Š. After exposure, the zinc is dissolved in acetic acid solution before the developing and fixing processes. In a modification the protective coat is polyvinyl alcohol and the metal is cadmium. In another modification the protective coat is polyvinyl acetate and the metal is magnesium; after exposure, the protective coat is dissolved in methyl alcohol which removes the coat and the metal layer. In a further modification the protective coat is a co-polymer of styrene and maleic anhydride and the metal is zinc, both of which are removed by the developer. In another example the protective coat is 0À7 microns of gelatine covered with a 0À7 micron thickness of a styrene-maleic anhydride copolymer and the metal is zinc, all of which are removed in the developing and fixing processes. Further examples use nitrocellulose and titanium, polyvinyl acetate and aluminium, and nitrocellulose and silver.
Patent GB-378181-A (GB)
Title: Improvements in or relating to episcopic projectors
IPC: G03B21/06
Filed: 1931-07-22
Abstract: 378,181. Optical-projection apparatus. KUPFER, R., 27, Hardenbergstrasse, Charlottenburg, Berlin. July 22, 1931, No. 20945. Convention date, July 23, 1930. [Classes 97 (i) and 98 (ii).] In an episcopic projector wherein the light is reflected directionally by the reflecting surface of a non-transparent image band, only one reflector is employed between the condenser lens of the lamp and the objective. As shown, the apparatus comprises a lamp 1, a concave mirror 2, a condenser 4, a mirror or reflecting prism 5, and an objective 6.' The image band 3 may be a film having a highly polished coating, such as a thin iron or steel band coated by rolling with a fine laver of aluminium. In a modification the mirror 5 may lie between the condenser 4 and the image band 3, and a cylindrical lens compensating for distortion due to inclination of the objective 6 may be introduced into the objective.
Patent GB-407596-A (GB)
Title: Improvements in or relating to electrical heating apparatus
IPC: F24C7/00
Filed: 1933-07-25
Abstract: 407,596. Electric radiators. UNITY HEATING, Ltd., (formerly YOUNG, OSMOND, & YOUNG, Ltd.), Welwyn Garden City, and PETRIE, D. G., Italian House, Meadow Green, Welwyn Garden City, Hertfordshire. July 25, 1933,No.20975. [Class 39 (iii).] An electrical heating- apparatus comprises a non- luminous heat radiating panel 4, coloured upon its heatradiating surface 5 with a coating of heat - resistant colouring matter, and a light radiating means 8 so placed as to illuminate the coloured surface of the heat radiating panel. A second heating unit 12, which may be coloured, is carried by the front wall 3 of the casing 1. Between the surface 5 and electric lamp 8 are a coloured screen 6 carried by a bracket 7, and a bulb 9 containing liquid 10 which is heated and agitated by heat from the lamp 8 so as to cause a ripple effect in the light rays falling on the surface 5. A graded colour effect is produced across the surface 5. An ornamental grid 1<1> above the wall 3 protects the panel 4. In a moditication, the rear wall of the casing and the coloured heating unit curve forwardly, and the screen curves rearwardly. Alternatively, the heating panel is vertical and is illuminated by a festoon lamp with an associated partcylindrical reflector. The heating element comprises a crimped resistance wire extending sinusoidally across the surface of a micanite sheet, to which it is secured by sewing. The element is mounted between cast-iron plates and is insulated therefrom by asbestos wool, magnesite or the like.
Patent GB-475435-A (GB)
Title: Improvements in or relating to trucks, trolleys and like vehicles
IPC: B62B3/12
Filed: 1936-07-30
Abstract: 475,435. Hand trucks. NOTTINGHAM CO-OPERATIVE SOCIETY, Ltd., and HODGES, J. M. July 30, 1936, No. 21068. [Class 108 (i)] A truck or trolley having a wheeled frame is provided with one or more members adapted to constitute goods carriers extending laterally from the frame. As shown the hand truck consists of a main control frame comprising two side framed plates 14 and end plates 15, a single wheel 22 mounted between said side plates 14 on an axle carried by members 20, frame members 17 which are projected rearwardly to carry a handle 18 and also serve to support a goods tray 19, and lateral frames comprising a tray 30 or other goods carrying means having frame members 27 .. 29 supported by stays 32, 33 wheel 35 and leg 37. These lateral frames may be folded up against the main frame when not required. Lateral containers 38 are also provided. The truck may be used for milk distributing purposes and the truck may bo carried at the rear of a vehicle if desired by means of hooks engaging the handle rubber blocks 42 being provided on the truck frame to prevent damage to the truck.
Patent GB-898392-A (GB)
Title: Improvements in or relating to a process for the production of electrolytic products by the electrolysis of brine and to apparatus therefor
Inventor: EDWARDS GEORGE ERNEST
IPC: F28F3/08
Filed: 1959-06-19
Abstract: 898,392. Electrolysing brine. IMPERIAL CHEMICAL INDUSTRIES Ltd. June 3, 1960 [June 19, 1959], No. 21092/59. Drawings to Specification. Class 41. In a process for electrolysing brine in a mercury cathode cell and recirculating the brine after re-charging with salt, calcium ions preferably 600 to 1400 p.p.m. W/W are also added to the recharged brine and passed through a heat exchanger made of titanium before entering the electrolytic cell. The electrolysed waste brine may be used to pre-heat the incoming cold brine, in the heat exchanger, and the waste brine is then re-saturated and brought to the required calcium ion content. The process overcomes the corrosive effect of hot chlorine in the waste brine, and removes the danger arising from generation of hydrogen in the mercury cell.
Patent GB-432391-A (GB)
Title: Improvements in or relating to trousers and the like
IPC: A41D1/089
Filed: 1934-07-19
Abstract: 432,391. Trousers &c. GLENNY, C. F., 152, Strand, London. July 19, 1934, No. 21163. [Class 141] Trousers, shorts, or like garments are joined on the inside of the leg by means of a single sliding-clasp fastener having a sliding member which is separable from the fastener elements on one edge of the fabric and which is slidable from the lower edge of the inside of one leg up to the crotch and then down the inside of the other leg to the lower edge thereof. The tapes carrying the fastener elements are secured to the inside of the fabric of the garment in such manner that, when the fastener is closed, it is concealed by the overlapping margins of the fabric.
Patent GB-676108-A (GB)
Title: Improvements in or relating to hand tools driven by an electric motor and means for making electrical connections thereto
IPC: H02K5/22
Filed: 1949-08-15
Abstract: 676,108. Connection fittings. TARPEN ENGINEERING CO., Ltd., and ROSS, J. W. Aug. 15, 1950 [Aug. 15, 1949], No. 21163/49. Class 38 (i). [Also in Group XXXV] So that fractured cables of the motor 1 of a hand tool may be easily replaced, the casing 2 has a recess 10 receiving a removable block 12 which is retained by a cover 22 for the recess, sleeveterminals 15, 15<SP>1</SP> of the block being connected to the motor leads 17<SP>1</SP>, 18<SP>11</SP> and to supply leads 19, 20. The recess wall and cover 22 jointly are formed to provide an aperture to admit a flexible sleeve 24 on the supply cable 21, thereby preventing the latter being forcibly removed. An earthing terminal 40 is provided.
Patent GB-267002-A (GB)
Title: Improvements in apparatus for hoisting, transporting and rotating molds used in centrifugal casting
IPC: B28B21/30
Filed: 1925-12-01
Abstract: 267,002. Nichols, C. R. Dec. 1, 1925. Centrifugal machines.-A mechanism for rotating, hoisting and transporting moulds for centrifugally casting hollow bodies such as pipes formed of cementitious material, travels on an elevated trackway 1 and is provided with wheels 8 for rotating the moulds 7 by engagement with runner rims 9 thereon, the moulds being supported on pairs of idle rollers 6 mounted on a base 3. The mechanism runs on wheels 19 engaging the upper flanges of the rails 1, which are of channel section, and is propelled by driving gears 5 engaging a rack 4 on each lower flange. The wheels 8 are driven through a differential gear set 10, and a driving shaft from bevel gears enclosed in a chamber 25 on a shaft 14. The shaft 14 is driven by chains from a shaft 13 driven by a motor 12, and is controlled by a clutch 13<a>. The hoisting mechanism comprises a pair of arms 15 pivoted on the shaft 14 and bolted to the shaft 11 of the wheels 8. The arms 15 carry pivoted gear racks 17 engaging gears 18 which are driven from the shaft 13 and are controlled by a, clutch 26<a>. By rotating the gears 18, the mould 7 may be lifted off the rollers 6 by means of a cable 29<a>, and the pressure of the driving wheels 8 regulated. By clutching in the gears 5, the moulded article is then transferred to rails 29. In a modification, the gear rack 4 is mounted in the base 3. Specification 187,587 is referred to. The material for the pipe is preferably placed in the mould and distributed as described in Specification 266,807.
Patent GB-697016-A (GB)
Title: Indicating device for use with milk bottles or the like
IPC: G09F11/23
Filed: 1950-08-28
Abstract: 697,016. Indicators. RICKFORD, D. R. Aug. 3, 1951 [Aug. 28, 1950], No. 21183/50. Class 118 (i) An indicator for milk bottles or the like comprises a front disc 10 with an aperture 14 through which information on a rear disc 11 may be displayed. The rear disc is rotatably mounted on the front disc, which has a stem portion 10a which may be inserted in the neck of the milk bottle.
Patent GB-622663-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F9/06
Filed: 1946-07-16
Abstract: 622,663. Hydro-pneumatic shock-absorbers ELECTRO-HYDRAULICS., (formerly ELECTRO - HYDRAULICS (MESSIER), Ltd. ORLOFF, G., and NEILSON, C. B. V. July 16, 1946, No. 21318. [Class 108 (iii)] The invention relates to shock-absorbers of the type in which fluid is contained in a deformable chamber permanently in communication with a second chamber through an orifice or orifices which may be valved, and the space in which is spring-controlled, the chambers being in the form of tubes which constitute the whole shock-absorber. According to the invention a third chamber within the two tubes and spring- controlled, is in valved-communication with the deformable chamber, the arrangement being such that in the event of fluidpressure in the deformable chamber rising to a pre-determined level, further damping is automatically effected by open communication between the deformable and third chambers. A cylinder 1 is divided into two chambers 1, 2 by a fixed diaphragm 7. A piston 18 slidable in the chamber 1, has an extension 14 which passes through the diaphragm 7 and carries a counter-piston 15 slidable in the chamber 2. The chamber 1 is filled with liquid which extends through orifices 8, 9 in the diaphragm 7, controlled by valves 10, to partially fill the chamber 2. The remainder of the chamber 2 contains compressed air which may, however, be replaced by resilience of the liquid or by coiled or rubber springs separated from the liquid by a floating piston. The piston 18 is carried by a hollow rod 11 which constitutes a third chamber 3 defined by a floating piston 24 beneath which is compressed air. The chambers 1, 3, are in communication by a relief valve 21 and a non-return valve 22. A port 16 is provided in the counter-piston 15 and a groove 17 in the extension 14 modifies the damping action of the ports 8, 9, in the diaphragm 7. In a second construction, the counter-piston may be connected to the floating piston by a rod 14 which passes through, instead of being secured to, the piston 18. In operation the resilience of the compressed air in chamber 2 serves to cushion normal loads, damping occurring due to flow through the orifice 9; while under excess loads the relief valve 21 releases liquid from the chamber 1 to chamber 3, with additional damping taking place due to flow through the valve 21. On extension or relief of load, liquid passes back from chamber 3 to chamber 1 through the non- return valve 22.
Patent GB-1461057-A (GB)
Title: Open discharge pulp refiner
IPC: B02C7/06
Filed: 1975-05-19
Abstract: 1461057 Disc mills WESTVACO CORP 19 May 1975 [20 May 1974] 21320/75 Heading B2A A refiner plate comprises a disc divided into inner and outer annular sections 40, 50 Fig. 2 which are separated by a circular distribution groove 60, the outer annular section 50 being divided into circle sectors, each separated by stock feed grooves 61 which extend from the circular distribution groove 60 to the periphery; parallel beater bars 51 and flow channels 52 extend across the plate within a sector and are parallel to the lagging feed groove (relative to the direction of rotation). A first portion of these channels extends continuously from the circular distribution groove to the outer periphery, and a second portion extends from the distribution groove to the leading feed groove. Each feed groove is plugged at 53 at its outer periphery. In a second embodiment there is, for each sector, only one feed groove which is at an angle to a radius passing through it, Fig. 6.
Patent GB-276828-A (GB)
Title: Improvement on coat hangers
IPC: A47G25/28
Filed: 1926-08-30
Abstract: 276,828. Douch, E. G. Aug. 30, 1926. Coat and like hangers.-An attachment to the yoke A is provided for hanging hats or other article of clothing, and comprises a hinged flap B carrying a knob K, and provided with a pin having a globular head and engaging a corresponding pin on the coat yoke. The hanger may be provided with a trouser rail and the hinged flap may be fixed to the upper surface of the rail and fold vertically. To maintain the flap in operative position, interlocking elements may be arranged on the rail and flap respectively, and when not in use the flap may be locked behind the hook of the hanger.
Patent GB-978196-A (GB)
Title: Improvements in room heating apparatus provided with an ornamental screen for use therewith
IPC: F24C15/06
Filed: 1961-06-14
Abstract: 978,196. Ornamental screens. A. A. STRUIJK. June 14, 1961 No 21457/61 Heading A4U. [Also in Division F4] An ornamental screen for a closed solid fuel stove has side walls 2, 3 joined to a front wall 1 with a cut out open at the bottom and closed by a door 6. The double walled door 6 is of less height than the cut out to leave an air inlet slot 9 at the bottom. The cut out is of greater width and height than the front of the stove with which it is to be used, and the door 6 has an opening 12 with rearwardly directed flanges 14, 15 18 to allow a view of the transparent stove windows behind it. A baffle 10 at the bottom of the screen directs air through the slot 9, and the rear wall 19 of the door has air inlet slots 20 at the bottom and outlet slots 21 at the top, and a slot below the lower flange 15 at the opening allows cooling air to flow over the stove windows. The upper and lower flanges 18, 15 are shaped to allow the passage of air over the window of the stove.
Patent GB-1502718-A (GB)
Title: Hosiery and a method of knitting hosiery
IPC: D04B9/54
Filed: 1976-05-24
Abstract: 1502718 Knitting VSES NI INST LEGKOGO I TEXTIL MASHINOSTROENIA 24 May 1976 21471/76 Heading D1K A sock welt is knitted and held on the needles of the circular knitting machine while a foot with a closed toe and a leg are knitted after which the two are joined by knitting a few courses.
Patent GB-138282-A (GB)
Title: New and improved bottle-stopper
IPC: B65D45/18
Filed: 1919-09-01
Abstract: 138,282. Melhuish, A. E., (Koscherak Siphon Bottle Works). Sept. 1, 1919. Stoppers, catch and like.-A stopper consisting of a sheet-metal cap 7 with a central projection or boss 8 and containing a gasket 15, 16, is secured to a bottle by means of a spring clip 9 consisting of a metal strip extending across the top of the cap and having downwardly-bent spring arms 10 with jaws or .gripping-members 11 to fit tightly around the bottle underneath the lip. Lugs 13, formed by cutting apertures 14 in the rim of the cap and bending the cut-away portions, co-act with the edges of the clip so that it cannot be turned relatively to the cap. The gasket consists of a cork centre 15, preferably a little larger than the mouth of the bottle, and an annular piece 16 of rubber &c. to rest on the lip of the bottle. The ends 12 of the arms of the clip are bent out horizontally for use in springing the stopper on and off the bottle.
Patent GB-1179905-A (GB)
Title: Process for the production of acetic acid.
IPC: C07C51/245
Filed: 1967-05-09
Abstract: 1,179,905. Acetic acid. FARBENFABRIKEN BAYER A.G. 9 May, 1967 [10 May, 1966], No. 21487/67. Heading C2C. Acetic acid is produced by oxidizing sec-butyl acetate with oxygen at least partly in the liquid phase, at 150‹ to 250‹ C. and 30 to 150 atmospheres, the heat of reaction being absorbed in the reaction product and some of the reaction product being recycled through a cooling unit to the oxidation reactor, and the cooling unit is arranged in the ascending stream of reactants between the reactor and a separator arranged above it in which the liquid and gaseous products are separated from one another. The process may be carried out non-catalytically or in the presence of oxidation catalysts, e.g. cobalt, chromium or manganese acetates. The sec-butyl acetate starting material may be the reaction product of n-butene and acetic acid which may be reacted together in the presence of an acid catalyst, e.g. an ion-exchange resin.