baber/WOPTO huggingface dataset:
Patent GB-1012423-A (GB)
Title: Production of chlorinated hydrocarbons
IPC: C07C17/152
Filed: 1964-02-10
Abstract: Perchlorethylene and trichlorethylene are prepared by contacting a 2-carbon hydrocarbon, or partially chlorinated derivative thereof, with oxygen or an oxygen-containing gas and hydrogen chloride, chlorine or a mixture thereof, with a fluidized bed of oxychlorination catalyst particles, and passing the product into a second catalytic reaction zone with sufficient oxygen or oxygen-containing gas and optionally hydrogen chloride, chlorine or a mixture thereof to provide a reaction product from the second zone comprising perchlorethylene and trichlorethylene. Examples use ethylene dichloride, ethane and ethylene as starting materials. Chlorocarbons and chlorohydrocarbons other than C2Cl4 and C2HCl3 are produced, particularly in the first reaction zone.  Undesired products from the second reaction zone may be recycled thereto.
Patent GB-592761-A (GB)
Title: Improvements in or relating to rotary power-transmitting devices
IPC: F16H29/18
Filed: 1945-03-06
Abstract: 592,761. Variable-speed ratchet gearing; ratchet clutches. SMITH, R. March 6, 1945, No. 5601. [Class 80(ii)] In a mechanism which may be used as a variable-speed ratchet gear or a ratchet clutch, parallel facing driving and driven discs are connected by members which are slidable in radial undercut grooves in one disc and carry rotatably mounted one-way gripping heads projecting into an annular or other endless groove in the other disc. If the discs are mutually laterally fixed, the mechanism functions as a ratchet clutch, and if they are relatively laterally displaceable it functions as a variable-speed ratchet gear. As shown, a face plate 11, Fig. 4, drivingly connected to a shaft 13 carries in radial T-shaped grooves 16, Fig. 3, sliders 17 having projecting heads 15 engaging an annular groove 23 in the face of a coupling plate 20 drivingly connected to a second shaft 21. Each head 15, Fig. 5, having a pin connection 18 with its slider 17, possesses arcuate upper and lower surfaces fitting the groove 23 and one or more (three are shown) one-way jamming rollers 29 inset in one or both of these surfaces, these rollers being urged by springs 33 into contact with the groove 23. The grooves 16 may extend only part way across the plate 11 as shown, or may be diametrical with or without a central gap.
Patent GB-377602-A (GB)
Title: Improvements in and relating to methods of sealing metal to glass
IPC: H01J5/42
Filed: 1932-02-25
Abstract: 377,602. Leading-in wires for electric lamps &c. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Wright, D. K. ; 3162, Redwood Road, and Greiner, A.; 875, Helmsdale Road, both in Cleveland Heights, Ohio, U.S.A.) Feb. 25, 1932, No. 5682. Convention date, Feb. 28, 1931. [Class 39 (ii).] In a method of sealing metal elements to the glass parts of sealed containers, for example for uniting leading-in conductors to glass stems and parts of electric lamps and the like, a collar of glass 13, Fig. 2, is first secured firmly to a metal thimble 10, after which the collar is secured to the flared stem-tube or other glass part such as 18, Fig. 4, which is subsequently united to the bulb or other container. The thimble 10, which is preferably made of copper with a thin tapered wall section 12, is first mounted in a rotatable chuck 11 and subjected to heat from a series of gas jets directed upon its inner and outer surfaces to form an even coating of oxide thereon. The glass flare 13 is then placed upon the edge of the thimble and subjected to heat from gas jets to soften it so that it can be bent around the rim of the thimble by a pair of parallel rotating rollers 14, 15, Fig. 3 (not shown), which bear respectively upon the inner and outer surfaces of the thimble and press the collar between them to secure it to the rim. To secure the collared thimbles to the flare 18, Fig. 4, which is formed with hollow protuberances 19, 20, the thimbles are placed in a holder 22 and gas jets (not shown) are directed upon the protuberances 19, 20 and collars 13 to soften them, whereupon the holder 22 is lowered to force the collars into the protuberances, the heating being continued until a thorough fusion is effected. Air is then blown through jets 23 to cause the protuberances to swell and tighten the joint. This also produces a thinning of the glass crowns which may be broken through after cooling to enable the leading-in conductors to be passed through the metal thimbles wherein they are subsequently secured by welding or soldering. The glass-collared thimbles may be. secured to open-ended protuberances by a fused butt-joint.
Patent GB-549208-A (GB)
Title: Improvements in or relating to the melting of organic filament-forming materials
IPC: B29C48/05
Filed: 1941-05-05
Abstract: 549,208. Artificial filaments, films &c. DU PONT DE NEMOURS & CO., E. I. May 5, 1941, No. 5801. Convention date, May 4, 1940. [Class 2 (ii)] [Also in Groups V and X] In a process for the melt-spinning of organic filament- or film-forming compositions, discrete particles of the solid material are fed from a supply to a melting zone through a passage which prevents the solid material from coming into contact with any portion of the apparatus having a temperature at or above that at which the material melts or appreciably softens until the material has reached the melting zone. The melt-spinning apparatus includes a melting chamber, a heated melting grid in the chamber, and a hopper, constructed to move progressively a body of discrete particles of the composition into the melting chamber, and separated therefrom by insulating means. As shown in Fig. 1, a hopper 11 is filled or partly filled with flakes or chips of a solid filament-forming composition 12. The flakes fall on to a melting grid 15 which may be heated by passage therethrough of hot vapour. The grid 15 is mounted above the heated chamber 18 which may be heated by vapours passing through coils 19. The filament-forming composition melts and drains from the grid into melt chamber 20 whence it may be removed and forced through an extrusion device and collected in the form of filaments, yarns, sheets, ribbons, or the like, or applied directly as coatings on metal wires or other objects. The hopper is thermally insulated from the melting grid 15, and the heated chamber 18 by means of the insulation 24. The solid filament-forming composition is prevented from contacting with the insulation 24 by means of the confining skirt 25. In the modified apparatus shown in Fig. 2, the insulating ring 24 is lined with a thin metal sheet 26. This prevents contamination of the composition as a result of disintegration of the insulating material 24. The metal sheet 26 also helps to keep the assembly gas-tight. It may be made of stainless steel. The skirt 25 may be spaced from the wall 26 or insulated from it by an insulating material. The process may be applied to the melt extrusion of synthetic linear fibre-forming polymers, e.g. polyamides. The composition may be pre-heated before contacting the metal grid 15, provided that it is not heated to or above its melting point. Specifications 461,236, 461,237, and 533,307, are referred to. The Specification as open to inspection under Sect. 91 is not restricted to melt spinning operations but relates in general to the feeding of the compositions to a melting zone. This subject-matter does not appear in the Specification as accepted.
Patent GB-102105-A (GB)
Title: Improvements relating to Cups.
Inventor: CURTIN DAVID FRANCIS
IPC: B65D3/06
Filed: 1916-04-20
Abstract: 102,105. Curtin, D. F. April 20, 1916. Stands.-A holder for supporting a conical paper or like cup 6 comprises a socket 3 in the form of a truncated cone and a base 7. The cup is provided with a reinforcement 4 at its apex, and may be formed as described in Specification 101,764, [Class 66, Hollow-ware].
Patent GB-1123541-A (GB)
Title: Improvements relating to coated products
Inventor: VISNOVSKY LUBOMIR
IPC: D06N3/12
Filed: 1966-02-10
Abstract: A nylon-coated product comprises a substrate having a nylon bonded to it by means of an adhesive containing a polyurethane rubber and an organic isocyanate.  The substrate may be a sheet or film, may be in expanded form and may be of plastics material e.g. polyvinyl chloride or polyvinylidene chloride, or a vinyl chloride copolymer, or an expanded polyvinyl chloride sheet or film having a textile fabric base which may be of cotton, nylon, acrylonitrile copolymer, polypropylene, polyurethane, polyester, or cellulose acetate, polyacrylates, polystyrene, polyethylene or polypropylene, wood, paper, metal, woven or nonwoven fabrics.  A soluble nylon e.g. alcohol soluble nylon, may be employed.  The adhesive may be a polyurethane rubber containing active hydrogen atoms e.g. containing hydroxyl groups, and may also contain a di-isocyanate or tri-isocyanate, examples are given.  The adhesive may be applied to the substrate, the nylon applied thereto in the form of a composition and the whole heated under conditions such that the components are united together; when the substrate is an expanded polyvinyl chloride sheet or film having a textile backing the whole may be flexed or stretched in order to produce fine cracks in the surface coating. The nylon and the adhesive may be applied by spraying, brushing, or rolling by printing machine, or the nylon may be applied to the adhesive coated substrate by transfer from a release backing.  More than one nylon coating may be applied.  The nylon may be applied to the adhesive in the form of a sheet or film and bonded by means of heat and pressure.
Patent GB-422370-A (GB)
Title: Improvements in and relating to television and talking film recording
IPC: G02F1/00
Filed: 1934-02-22
Abstract: 422,370. Light valves. SUDDEUTSCHE TELEFON - APPARATE KABEL-UND DRAHTWERKE AKT.- GES. TEKADE, Nuremberg, Germany. Feb. 22, 1934, No. 5911. Convention date, Feb. 22, 1933. [Class 40 (iii)] A light-valve for television and soundrecording uses the direct electro-optical doublerefraction in solid crystals, which is proportional to the applied electric field. The crystals used are translucent in the visible spectrum, electrically insulating, and are so disposed between two electrodes that the optical axis of the crystal is perpendicular or parallel to the electric field. The crystal is of an acentric group of the regular system, for example zinc blend. The Specification as open to inspection under Sect. 91 describes the use of sodium chlorate. This subject-matter does not appear in the Specification as accepted.
Patent GB-1197674-A (GB)
Title: Piston-Operated Pneumatic Vice.
IPC: B25B1/18
Filed: 1968-02-07
Abstract: 1,197,674. Vices. FABRYKA PRZYRZADOW I UCHWYTOW BIALYSTOK. 7 Feb., 1968 [9 Feb., 1967], No. 6163/68. Heading B3B. A vice is operated pneumatically by connecting the feed screw 3 to a piston rod 9 on which are mounted a plurality of piston members 5 which move, for a limited movement, between partitions 22 formed in the cylinder. The cylinder is formed by clamping together rings 7 and partitions 22 by means of studs 4 on the fixed part of the vice. Air ducts 17, 18 and 19 and 20, 21 allow the members 5 to be pressure operated in either direction. In operation a workpiece is initially clamped by hand operation of the handle 15 and feed screw 3, and final clamping is achieved pneumatically.
Patent GB-426625-A (GB)
Title: Improvements relating to magnetic materials
IPC: C22F1/10
Filed: 1933-08-31
Abstract: Relates to an improvement in or modification of the process described in the parent Specification in which a low value of h0 is produced in a magnetic iron-nickel alloy containing 30-70 parts of nickel and 70-30 of iron and an amount of copper within a critical range defined below by heating, before the final cold working, to a temperature of 700 DEG  C., or over and then cooling at a slow rate, e.g. by cooling in the furnace.  The term "critical range" is defined by the fact that if the amount of copper is within this range a lower value of the factor h0 is obtained by cooling slowly than by cooling moderately rapidly as in air.  If the alloy contains 40-36 parts of nickel, the copper content is from about 4 to 8 per cent, 50 parts of nickel from about 6 to 10 per cent, and 65 parts of nickel from about 8 to 12 per cent.  Specification 408,984 is referred to.
Patent GB-206081-A (GB)
Title: Improvements in electric discharge devices
IPC: A01J9/00
Filed: 1923-03-03
Abstract: 206,081. Western Electric Go., Ltd., (Western Electric Co., Inc.). March 3, 1923. Vacuum tubes; low-pressure metallic-vapour apparatus.-A Braun or like tube has a cathode arranged out of alignment with an aperture in an anode so as to prevent bombardment of the cathode by positive ions. As shown the cathode consists of the strip bent to form a ring 15 of the same diameter as the aperture within a tubular anode 13. A plate 12 with an aperture may be interposed between the electrodes to provide additional protection for the cathode. The cathode rays pass through the anode and impinge on a fluorescent screen composed of preferably equal parts of calcium tungstate or similar material emitting blue light under fluorescence, and of zinc silicate or sulphate emitting green light, the mixture being held on the wall of the tube by a binder such as water glass. Such a screen may be employed for visual or photographic work on alternating current wave forms. The tube may contain gas or vapour such as mercury vapour at a pressure of one or two microns.
Patent GB-1401159-A (GB)
Title: Seat belt system
IPC: B60R22/343
Filed: 1973-02-08
Abstract: 1401159 Seat belt system ALLIED CHEMICAL CORP 8 Feb 1973 [24 April 1972] 6265/73 Heading A3V A vehicle seat belt system comprises a retractor 22 having a housing 24, a movable part 42 connected to the seat belt and biassed by a spring 44 to a retracted position in the housing and a retractor locking member such as a bar 64 which is normally urged by a spring 66 into engagement with abutments 68 to lock the part 42 relative to the housing 24 but is movable to a release position by a solenoid actuated plunger 72 when a vehicle occupant sits on the associated seat and thereby closes a seat switch in the energising circuit of the solenoid, the circuit being subsequently opened to retract the plunger 72 when an inertia switch detects a predetermined change in motion of the vehicle. The solenoids energising circuit comprises, in addition, a switch which opens the circuit in response to operation of the vehicle brakes and a time delay switch which delays re-energisation of the solenoid. The inertia switch may be a mercury switch. In an alternative embodiment (Figs. 7 to 9, not shown) the linear retractor which is suitable for roof or seat-back mounting is replaced by a floor-mounted rotary retractor reel whose locking pawl carries a projecting tab engageable by the solenoid-actuated plunger.
Patent GB-1458486-A (GB)
Title: Preparation of dialkyl esters of aromatic diacids from polyesters  waste
IPC: C07C69/82
Filed: 1975-02-14
Abstract: 1458486 Aromatic diesters E I DU PONT DE NEMOURS & CO 14 Feb 1975 [15 Feb 1974] 6272/75 Heading C2C [Also in Division B1] A continuous process for the preparation of a dialkyl ester of an aromatic diacid from a waste polyester of the aromatic diacid and an aliphatic diol comprises the steps of (I) contacting the polyester waste with an excess of a monohydric alcohol at a pressure substantially equal to that of the partial vapour pressure of the monohydric alcohol and in the presence of an ester exchange catalyst, (2) deactivating the ester exchange catalyst with a sequestering agent at superatmospheric pressure and (3) vapourizing and recycling excess monohydric alcohol.
Patent GB-374400-A (GB)
Title: Improvements in or relating to television and like systems employing cathode ray tubes
IPC: H01J29/52
Filed: 1932-03-02
Abstract: 374,400. Television receivers. TELEFUNKEN GES. FUR DRATHLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. March 2, 1932, No. 6366. Convention date, March 2, 1931. [Class 40 (iii).] Relates to a cathode ray receiver in which the cathode stream from the cathode 1, Fig 1 passes through a tubular anode 2, an aperture 5 and between the scanning plates 6 .. 9 to the screen. In a known arrangement, the received signals are applied to the condenser plate 3 so that the cathode ray only passes through the aperture 5 during the short period when the received signals are passing through zero valve. According to the invention, the pulsating potential applied to the plate 3 is of zero amplitude for periods of time in each cycle, varying in linear relation with the strength of the received signals. The required oscillating potential is obtained as in Fig. 3, where a source of constant frequency alternating potential 10 is in series with a rectifier 11, and the received signal source 12. The potential tapped off from resistance 13 to be applied to the plate 3 is of zero amplitude for half a cycle, when the potential of 12 is zero, and when the potential of 12 is a maximum no period of zero potential occurs. The oscillation generated at 10 may be a straight line wave form oscillation. At high frequencies, the capacity of the rectifier 11, e.g. a valve, is compensated by a condenser 17, Fig. 4, in a bridge having resistances 18, 19.
Patent GB-466913-A (GB)
Title: A method of and apparatus for treating photographic pictures with developer and other liquids
IPC: G03D13/04
Filed: 1936-03-03
Abstract: 466,913. Photographic developing- apparatus. CASLER, H. March 3,1936, No. 6418. Convention date, March 23, 1935. [Class 98 (ii)] A developing-chamber is closed at its lower end by a photographic pack which is held firmly in position during development, means being provided for withdrawing a shutter from its position above the photographic element. A frame 1 of non-corrodible material has a reservoir 5 for developing liquids 6, separated by a wall 7 from a treatment chamber 8. A baffle plug 9 of stepped shape in the opening 4 prevents entry of light and secures better distribution of liquid in chamber 8. At the bottom of chamber 8 is a flange 13 against which is pressed the pack containing the picture to be developed. A bottom plate 16 is held in grooves' 15 in a flange 14 by a pair of clamping bars 18, 18<1> slidable one upon the other and having jaws 19 which engage the upper portions of the flanges 14. A spring 24 in a barrel 25 on a guide plate 20 urge the jaws together and finger pieces 23 enable the jaws to be separated. The pack 27 contains a shutter 28 slidable across the opening 29, and fits between the flange 14 and stop shoulders 30, being urged against the bottom of the chamber 8 by a holder 32 carrying a resilient pad 33. After clamping of the bottom plate, the shutter 28 is withdrawn by rotary means mounted in a cylindrical bore 34. This means comprises a cup-shaped disc 37 with a handle 37<11> and connected to a flat disc 38 carrying a planetary gear wheel 40. A staple 43 on the shutter is attached to a pin on the wheel 40, and when the disc is rotated the wheel 40 engaging studs 41 will move the shutter longitudinally. The application of pressure by the pad 33 is also controlled by the position of the wheel 40. A latch lock comprises a lever arm 62 with crank arms 63, 64, the arm 64 terminating in a hook 68 which projects into a slot 60, in a lug 59. When the hook 68 projects, the movement of the locking member 52 which holds the pressure pad 63 is prevented. The crank arm 63 lies alongside a flange 37<1> of the disc 37, and a recess 69 is provided in the flange to receive the crank arm 63 when the disc is moved to the position corresponding to the withdrawal of the shutter slide. A light spring urges the arm 63 into this recess and rocks the latch 62 so that the hook 68 projects and prevents movement of the pressure pad. In any other position of the disc 37, the hook 68 lies below the plane of the lug 59. The developing liquid can be extracted after each operation by inversion of the apparatus, the liquid flowing out through the opening 10.
Patent GB-306715-A (GB)
Title: Improvements in, and relating to, the sheathing or covering of walls or other surfaces
IPC: E04F13/12
Filed: 1928-03-01
Abstract: 306,715. Keller, A. V. March 1, 1928. Sheet-metal facing tiles.-A polygonal-shaped wall &c. tile is provided on each edge with alternate projections 2 and recesses 6 and is formed by pressing, stamping, or similar operations from metal or like sheet so as to comprise two thicknesses of the sheet with the projections and recesses in the rearward portion The arrangement is such that no more than two thicknesses of the sheet result in any part of the tiled surface. Nail holders 5 may be provided in the projections 2. The tile is bent from a blank as shown in Fig. 4, the part 1 being pressed on to the part 3.
Patent GB-117592-A (GB)
Title: Improved Device for Holding Hot-water Bottles, Jars, and other Containers.
Inventor: DENTON OTIS
IPC: A47J45/10
Filed: 1918-04-17
Abstract: 117,592. Denton, O. April 17, 1918. Filling jars and like receptacles.-A device for holding hot-water bottles, jars, and other containers which are liable to breakage when hot water, preserves, or other hot material is poured therein, comprises a metal body-bar 5 bent at one end 8, 9 to engage one side of the jar c and having at the other end a handle 7 carrying a slide-plate 11, which is bent at its inner end 13 to engage the opposite side of the jar. The plate 11, which has a finger-piece 12 at its outer end, slides between inturned flanges 10 on the edges of the handle 7.
Patent GB-546226-A (GB)
Title: Improvements in dashpot controls for connection to magnetic overload or time delay relays
IPC: H01H7/03
Filed: 1941-05-23
Abstract: 546,226. Dashpots. DONOVAN ELECTRICAL CO., Ltd., and FAIR, J. W. May 23,1941, No. 6605. [Class 108 (iii)] [Also in Group XXXVII] In a dashpot for use with magnetic overload or time-delay relays, of the kind in which the dashpot piston 12 has one or more concentric grooves 12a co-operating with an annular projection or projections 11a on the dashpot base, a plurality of valve-controlled ports are provided in the piston, one or more of these ports 12b connecting the top and the bottom face of the piston while one or more ports 12c connect the top face of the piston to the inner face of the said groove or grooves 12a. Thus, when the piston is on its down stroke, liquid can flow freely through the piston right up to the end of the stroke. In the construction shown there are two pairs of ports 12b, 12c controlled by ball valves 16 which are retained in place by plates 17 secured to the piston by screws 18. The piston 12 is adjustably connected to the core 14 of a solenoid (not shown) by a screw 13 fixed to the piston and screwed into the core, the screw being locked in any desired position by means of a spring finger 15b engaging a slot 13a in the screw and lying in a slot 14c in the core. The dashpot body 11 is removably secured to the solenoid casing (not shown) by a spring clip 10.