baber/WOPTO huggingface dataset:
Patent GB-1357581-A (GB)
Title: Automatic focusing system for projectors and the like
Inventor: SZYMBER O
IPC: G03B21/53
Filed: 1971-09-03
Abstract: 1357581 Automatic focussing GAF CORP 3 Sept 1971 [14 Sept 1970] 41205/71 Heading H4D In a slide projector, Fig. 1, an out of focus condition on screen 18 due to buckling of slide 16 is rectified in two stages: (a) by movement of subsystem 20, such that light from source 21 is continuously focussed on the buckled part of the slide, and then (b) by movement of subsystem 30 including projection lens 19, such that the light from source 21 (controlled by (a) to be in the plane of the slide) is continuously focussed on the screen. In stage (a), Fig. 2, light from source 21 is focussed by lens 23 in the plane 0 of the source. If the slide 16 is not in this plane, the reflected light when focussed by lens 24 does not fall centrally on detector system 25. Resulting position error signals cause motor 27 to activate rack and pinion drive 28, 29 to move system 20 and bring the buckled part of the slide into the plane 0. When this is achieved, Fig. 3, annular lens 32, equal in focal length to the projection lens 19 may no longer focus the light from source 21 on to the screen 18. Light reflected from the screen then no longer falls centrally on detector system 41. This results in position error signals, repositioning the system 30. If the screen is moved, system 30 may oscillate, using direction reversing limit switch, the movement being with a depth of focus zone giving focus over an expected screen distance variation.
Patent GB-1155373-A (GB)
Title: Miniature Rotary Switch
IPC: H01R13/70
Filed: 1966-09-16
Abstract: 1,155,373. Mechanical switches. SPECTROL ELECTRONICS CORP. 16 Sept., 1966 [20 Sept., 1965], No. 41537/66. Heading H1N. A miniature rotary switch having a moulded rotor 23 carrying one or more moving contacts 22 for connecting a common ring 25 to selected contacts 19 is provided with a locating device comprising a pair of resiliently deformable beams 27 moulded integrally with the rotor 23 and having projecting portions 28 which engage detents (51 to 60, Fig. 3, not shown) moulded in the side wall 14 of base member 13. The beams 27 may be fixed to the rotor 23 at both ends (Fig. 3, not shown) or of cantilever form (Fig. 5, not shown). Cams 24 moulded in base 13 lift the contact 22 off contacts 19 with a rapid break action as the rotor is moved between its located positions. The switch is sealed by a silicone rubber lining 15 inside the crimped-on cover 12.
Patent GB-935164-A (GB)
Title: Improvements relating to methods of manufacturing electric discharge tubes
IPC: H01J9/38
Filed: 1961-11-22
Abstract: 935,164. Electric discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 22, 1961 [Nov. 25, 1960], No. 41769/61. Class 39 (1). A method of manufacturing an electric discharge tube provided with a hydrogen replenisher, comprises the steps of degassing the tubes and electrodes, coating a component part of the tube with finely-divided metal, which is capable of reversibly absorbing hydrogen, by atomization in a rare gas glow discharge or by vaporization in a rare gas atmosphere, saturating the finely-divided metal at least in part with hydrogen, and removing any excess gas from the tube. The hydrogen may be in the isotopic form of deuterium or tritium and the metal used is preferably zirconium or titanium. In one form, Fig. 5, a heater 2, comprising, Fig. 2, a tungsten core 3 on which are wound a tungsten wire 4 and a titanium wire 5, is heated in an atmosphere of argon at 10 mms. of mercury and the titanium evaporated to form a layer 7 on a nickel sheath 10. The argon is removed by pumping and hydrogen or the desired isotope admitted. Alternatively, a glow discharge may take place between the heater 2 and the sheath 10 so that the titanium is atomized on to the sheath. The hydrogen replenisher may be used in a neutron generator, one form of which, Fig. 4, comprises an ion source composed of a molybdenum anode 13 and a cathode constituted by two molybdenum plates 14, 15, the latter having an aperture 16. A block of permanent magnet steel 20 and soft-iron sleeve 19 constitute the magnetic circuit for the ion source. Ions issuing from the source strike a target 24 at the far end of a tube 23, and the heater 2 for the hydrogen replenisher is controlled either by the ion current or the yield of neutrons. In another form of the generator, Fig. 5, a fernico disc 25 separates the generator into two portions 26, 27, each with a similar hydrogen replenisher. In operation, the layer 7 of the hydrogen replenisher in portion 27 does not contain deuterium or tritium, whilst that in 26 does. The filament 2 in portion 26 is heated and deuterium or tritium given off until the pressure therein is 10<SP>-2</SP> mm. Hg. A high frequency current of the order of 20 Mc/s. is passed through a coil 33, and a potential of 10 kv. is given to electrode 28 with respect to electrode 31. Ions are accelerated into portion 27 and impinge upon a target 30. The gas pressure in portion 27 is kept low because the layer 7 absorbs the deuterium and tritium. When the replenisher in portion 27 is saturated, the heater of the replenisher in 26 is switched off, that in 27 switched on, and the gas molecules reabsorbed in the replenisher in 26.
Patent GB-1244380-A (GB)
Title: Method of electrodeposition of paint
IPC: C25D13/22
Filed: 1968-09-04
Abstract: 1,244,380. Electro-deposition of paint. NIPPON PAINT CO. Ltd. and TOYO KOGYO CO. Ltd. Sept. 4, 1968 [Sept. 4, 1967], No. 42029/68. Heading C7B. Electro-deposition of paint comprising negatively charged pigment and vehicle for the pigment, and an alkaline material for stabilizing the pigment and vehicle, is effected in a cell having an electrically conductive interior surface, in which a cathode 4 is located in a cathode compartment having at least a pair of facing sides composed of diaphragms 5 through which cations can pass but through which anions cannot pass, one of said diaphragms facing a conductive metal plate 6 electrically connected to the cell wall (e.g. through ammeter A2) and positioned between the wall and the cathode compartment. In operation an equivalent amount of alkaline ions from the paint stabilizer enters the cathode compartment as paint is deposited, and therefore the bath may be replenished with the original mixture. The cell may be provided with an overhead conveyer system for continuous coating of parts.
Patent GB-1246445-A (GB)
Title: Improvements in building structures
Inventor: BENROY EDWIN
IPC: E04B2/52
Filed: 1967-09-18
Abstract: 1,246,445. Wall blocks. E. BENROY. 13 Sept., 1968 [18 Sept., 1967], No. 42382/67. Heading E1B. Walls, floors, roofs or pillars are formed using pre-cast building elements 1 having a solid or hollow rectangular body portion 2 having flanges 4, 5 or 6 forming continuation of the main face of the bricks on only 2, 3 or 4 edges so that when a plurality of units are placed in juxtaposition channels are formed between adjacent units and filled with reinforced concrete. No channels are formed by the flanges of a single unit. Angle section members are provided for finishing corners and for around window openings. Channel section members may be used adjacent vertical channels between units to cast enlarged stanchions.
Patent GB-882306-A (GB)
Title: Curing novolak resins
IPC: C08K5/35
Filed: 1959-12-15
Abstract: Infusible, insoluble resinous products are prepared by heating an essentially linear, fusible condensate of a phenolic compound and an aldehyde in the presence of from 5 to 300/0 based on the weight of said condensate of tetrahydro-1-H-oxazolo-(3,4C)-oxazole-7a-methanol, that is the compound of formula <FORM:0882306/IV (a)/1> The novolaks mentioned are the conventional ones prepared from phenol, the xylenols and the cresols including coal and petroleum tar acids as the phenolic component and aldehydes such as furfural and formaldehyde in the form of formalin, paraformaldehyde, trioxane and hexamethylenetetramine; phenol-melamine-formaldehyde condensates are also mentioned. Moulding compositions containing novolaks, the hardener, zinc stearate and fillers such as alpha cellulose, wood flour, walnut-shell flour, asbestos, silicon carbide, carbon black, diatomaceous earth, slate dust, mica, quartz, cloth cuttings including nylon and glass cloth and cloth made from acrylonitrile fibres, ground cork and sand are described, as well as the impregnation of laminating paper with an alcoholic solution of a novolak and the hardener.ALSO:<FORM:0882306/IV (b)/1> Tetrahydro - 1 - H - oxazolo - (3,4c) - oxazole - 7a-methanol, used as a curing agent for novolak resins, is prepared from tris(hydroxymethyl)-aminomethane and an aqueous solution of formaldehyde according to the equation:
Patent GB-985136-A (GB)
Title: Improvements in or relating to the manufacture of resin-impregnated fibrous products
Inventor: KINKAID ROBERT WILLIAM KINKAID
IPC: D04H1/655
Filed: 1961-11-29
Abstract: A web of random loosely laid fibres is impregnated with a resin by passing the web between a pair of compacting rollers, to one of which a resin-containing liquid is applied, the surface of at least the other roller being roughened.  Alternatively the resin containing liquid may be applied to both rollers. Thermo-setting resins, such as phenol formaldehyde dissolved for example in ethyl alcohol, and organic, hydrophilic fibres, such as cotton or other cellulosic fibres, are particularly suitable for the process.  To prevent the web sticking to the roughened roller a solvent for the resin, or a liquid that wets the fibres, may be applied to the roughened surface. This surface may be knurled or may comprise a wire mesh suitably secured around and to a smooth roller.  A doctor knife or roller is preferably used to limit or control the amount of resin-containing liquid applied to the web by the roller.  The impregnated web may be dried, cut into suitable sizes or shapes and a stack of the pieces so obtained moulded under heat and pressure to give a laminated product, e.g. a gear wheel.
Patent GB-1416507-A (GB)
Title: Sheet member having shear flexibility
IPC: F17C3/02
Filed: 1973-09-12
Abstract: 1416507 Flexible sheeting ROCKWELL INTERNATIONAL CORP 12 Sept 1973 [2 Oct 1972] 42923/73 Heading E1K [Also in Division F1] Flexible sheeting, preferably of metal, e.g. stainless steel, for use as a seal 30 between a rocket engine turbine exhaust manifold 32 operating at 800‹F and a fuel manifold 34 at a temperature of -400‹F, or for use in other applications where the sheeting has to be non-porous, cope with vibrations 44, 46, 48 in three directions, and adapt to a large temperature differential, consists of a pattern of spaced, intersecting corrugations 14 of approximately semi-circular cross-section with hemi-spherical domes 20 formed at the intersections to relieve stress along the corrugations. The corrugations preferably extend diagonally to the edges of the seal 30, their height or radius is preferably 6-12 times the thickness of the material, and the longitudinal edges of the corrugations are curved to a radius 3-5 times the thickness of the material. The height of each dome 20 is preferably approximately twice the height of the corrugations and the dome radius is preferably one and a half times the corrugation radius.
Patent GB-1066506-A (GB)
Title: Improvements in and relating to metering apparatus
IPC: G01F15/18
Filed: 1962-11-14
Abstract: 1,066,506. Pipe connections. W. MURRAY. Jan. 27, 1964 [Nov. 14, 1962], No. 43143/62. Heading F2G. A fluid metering device 1 is mounted between rigid pipe elements 4 in such a manner as to be supported on resilient bushes 9. As shown, a resilient washer 14 is interposed between the flanges 3, 5 of the device and pipes respectively, and the flanges have inserted in the bolt holes 8 thereof anti-vibration bushes 9.
Patent GB-1301634-A (GB)
IPC: B60C25/132
Filed: 1971-09-16
Abstract: 1301634 Inflating tubeless tyres HOFMANN GmbH GEBB [trading as HOFMANN KG GEBR] 16 Sept 1971 [29 Dec 1970] 43284/71 Heading B7C Apparatus for inflating tubeless tyres comprises a support member 11 for supporting a wheel 3 with a tubeless tyre 13, a substantially bell-shaped inflation member 7 which can be lowered towards the support member so that the periphery 23 of an outer portion 18 of the inflation member can bear sealingly against the sidewall 13 of the tyre on the support member and the periphery of an inner portion 19 of the inflation member can bear sealingly against the wheel rim flange, in operation of the apparatus air being introduced into the tyre through a space 20 between the first and second portions of the inflation member and between the wheel rim flange and tyre bead, and means for centring and holding a wheel on the support member 11, the means consisting of a hollow clamping mandrel 1 movable freely upwardly into the wheel on the support member and movable centring and holding members 2 on the mandrel. The mandrel is preferably circular in crosssection and has three slots extending parallel to one another in the longitudinal direction of the mandrel and displaced relative to one another through 120 degrees in the peripheral direction, the slots containing the clamping and centring members 2 which are provided with a mechanism enabling them to be moved radially outwardly through the slots to grip the wheel. If the mandrel is to be used with wheels having a centre hole it may be provided with a frustoconical tip for insertion in the hole (as shown), or alternatively for wheels without a centre hole the mandrel may be made of smaller diameter than the inner diameter of the rim flange of the smallest wheel to be gripped, the members 2 then engaging against the wheel rim. The inner and outer portions 18, 19 of the inflation member are displaceable relative to one another on a shaft 10 to allow for the change in size of the tyre as it inflates, a sealing ring 21 being provided in the region where the inner portion 19 slides against the outer portion 18. The periphery of the inner portion 19 which bears against the wheel rim is provided with a sealing ring 8 of wear resistant plastics which may be of stepped cross-section as shown or of frustoconical cross-section.
Patent GB-1423614-A (GB)
Title: Process for making copying paper
IPC: G03G5/05
Filed: 1973-09-17
Abstract: 1423614 Coated sheet materials FUJI PHOTO FILM CO Ltd 17 Sept 1973 [16 Sept 1972] 43612/73 Heading B2E [Also in Division D1] In a method for preparing copying paper a paper web is coated with a coating material suitable for copying use and is then subjected to a first and second drying, the coated web being humidified between the first and second drying or after the second drying. Where humidification takes place between the two dryings the preferred moisture levels in the treated web are 5-12% after the first drying, 9-15% after humidifying and 5-8% after the second drying (all percentages based on the total weight). Corresponding moisture levels for the process when humidifying is carried out after the second drying are 8-15%, 3-10% after the first and second drying respectively and 5-8% after the humidifying process.
Patent GB-1196215-A (GB)
Title: Trialkyl-Silyloxy-Steroid Compounds
Inventor: BARNIKOL-OETTLER KURT
IPC: C07J75/00
Filed: 1968-09-13
Abstract: 1,196,215. Trialkylsilyloxy steroids. JENAPHARM VEB. 13 Sept, 1968, No. 43669/68. Heading C2U. [Also in Division C3] The invention comprises optically active and racemic steroids of formula wherein rings A and B are fused cis or trans, rings B and C are fused trans and rings C and D are fused cis or trans, and wherein at least one of rings A, B, C and D can be enlarged by one methylene group or wherein ring C can be opened between C 8  and C 14 , the carbon-carbon bonds of the ring being saturated or unsaturated (when the ring substituents permit unsaturation), and R 1  is oxo, or, when a #<SP>2</SP>- or #<SP>3</SP>-double bond is present, R 1  is -OR 5  or -OR 7 ; R 2  is H, halo or -OR 5  and may be α- or #-oriented when no #<SP>5</SP>- or #<SP>6</SP>- double bond is present; R 3  is H 2 , oxo, R<SP>4</SP> is oxo provided that at least one of R 1 , R 2 , R 3  and R 4  is or comprises an -OR 5  radical; R 5  is H or trialkylsilyl, provided that at least one R 5  is trialkylsilyl; R 6  is H or C 1-5  alkyl, or R 6  is absent when the 10-carbon atom is involved in unsaturation; R 7  is C 1-5  acyl, benzoyl, C 1-5  alkyl or cyclopentyl; R 8  is alkenylene or alkynylene and R 9  is H or halo, or R 8  and R 9  (when part of R 4 ) can together represent C 1-5  alkyl; with the exclusion of 3-oxo-#<SP>4</SP>- and 3-oxo-#<SP>1,4</SP>-compounds having H or C 1-5  alkyl in the 17α-position. These compounds are prepared from the corresponding steroids in which at least one R 5  is H by reaction with a trialkylchlorosilane and/ or a hexaalkyldisilazane in a dipolar aprotic solvent. When the product contains two or more trialkylsilyl groups it may be treated with an alcohol to split off one or more of these.
Patent GB-1091642-A (GB)
Title: Electrical connectors
IPC: H01R13/11
Filed: 1965-10-19
Abstract: 1,091,642. Two-part couplings; terminals. THOMAS & BETTS CO. Oct. 19, 1965 [Oct. 20, 1964], No. 44275/65. Heading H2E. An electrical connector incorporates a pair of terminal members 40 (Fig. 8), placed face-toface in a housing 10 so as to be positioned to receive a contact between bifurcated springy portions 58 of the terminal members, the contact fitting in a slot 18 in the housing. The portion 54, 56, 46, 48 of the terminal member has a T-section. Easy insertion of the terminal member into the housing is ensured by means of grooves 20 and ramps 24, and the terminal member is locked into the housing by means of ramp-shaped detents 28. The housing may be adapted to accept any number of such terminals (Fig. 6 or 7, not shown), and also has mounting means 14, 16 (Fig. 1, not shown), for connecting the housing to another connector or to a terminal board.
Patent GB-1197919-A (GB)
Title: Improvements to Linen Washing and Like Machines
IPC: D06F39/10
Filed: 1967-09-29
Abstract: 1,197,919. Washing machines. CANDY S.p.A. 29 Sept., 1967 [8 Oct., 1966], No. 44356/67. Heading A4F. [Also in Division D1] A washing machine has a basket mounted in a liquid tank 11 having an opening in its base, connected to a drain pump, in which is removably mounted a cup-like filter 13 with filter openings in its sides to which access may be had through an opening in the basket 15 with a removable closure 16. As shown, the filter is of glass and has an integral handle 14.
Patent GB-1043226-A (GB)
Title: Improvements in mine roof supports
Inventor: KIBBLE JOHN DUNBAR
IPC: E21F13/10
Filed: 1961-12-12
Abstract: 1,043,226. Mine conveyors. COAL INDUSTRY (PATENTS) Ltd. Dec. 12, 1962 [Dec. 12, 1961], No. 44445/61. Heading B8A. [Also in Division Fl]  A mine roof support 3 has four (there may be one) upstanding fluid-operated extensible legs 4 (upstanding from a base-plate 6), a horizontal fluid-operated extensible jack 7 (attached to the plate 6), and a conduit such as 12, 13a, 13 so connecting the legs (or leg) 4 and jack 7 that upon the pressure in the jack 7 exceeding the pressure in the legs 4, further pressure increases in the jack 7 are transmitted to the legs 4 proportionately to increase the axial thrust thereof. When two roof supports have each been extended by a jack 7, a beam 8, secured to the underside of the drive-head 2, is moved to tension a conveyer 1, as each jack piston 7b bears against a beam portion 8a. As this extension is increased, jack thrust is increased and valves 13b and 13c open to give increased leg pressure.
Patent GB-1526848-A (GB)
Title: Traffic marker post
IPC: E01F9/627
Filed: 1976-10-27
Abstract: 1526848 Ethylene copolymer tubular posts GRANDVIEW INDUSTRIES Ltd 27 Oct 1976 [24 Dec 1975] 44667/76 Heading C3V [Also in Divisions E1 and F2]  A tubular traffic mark post (see Divisions E1 and F2) comprises a plastics tube made from a composition comprising 100 parts of polyethylene (d.=0À91-0À94 g./c.c.), 1À5-27 parts of ethylene-vinyl acetate and/or ethylene-ethyl acrylate copolymers and 0À5-5 parts of finely particulate solid filler or pigment, such as TiO 2 , ZnO or an organic U.V. absorber. The resulting tubular material remains resilient at temperatures down to - 20 F.
Patent GB-1060190-A (GB)
Title: Belt positioning apparatus for grooved conveyors
IPC: B66B23/14
Filed: 1965-10-21
Abstract: 1,060,190. Belt wandering. TURNBULL ELEVATOR Ltd. Oct. 21, 1965 [Aug. 23, 1965], No. 44692/65. Heading B8A. Conveyer belt 1 is provided with grooves 2 into which the fingers of comb 6 (not shown) are positioned. Additionally, rollers 16 are positioned in the grooves of the belt to fix it so that when the belt tends to move laterally the effect is to cause belt drum 5 to move axially in its bearings 14. The belt is driven from motor 10. In this way the belt is kept positioned centrally.
Patent GB-976932-A (GB)
Title: Coating apparatus
IPC: G02B30/27
Filed: 1960-12-30
Abstract: 976,932. Printing and embossing machines. HARRIS-INTERTYPE CORPORATION. Dec. 30, 1960 [Dec. 30, 1959], No. 44824/60. Headings B6C and B6J. [Also in Divisions B2 and D1] In apparatus for coating flexible sheet or web material, the material is passed through the nip formed by a coating cylinder 30 and an impression cylinder 60, and around a substantial portion of a surfacing cylinder 105 from which it is guided away by transfer means; means are provided for supplying liquid coating material 44 to the surface of the coating cylinder, which has on its surface carrier depressions to define. the area and meter the thickness of coating to be applied to the sheet material and doctor means 40 removes coating material from the cylinder except in the depressions; means 110 on the surfacing roll 105 acts against the fluid coating on the sheet material to impart a desired surface configuration thereto, and the coating is chilled and solidified by means operating to cool the surfacing cylinder 105. The coating cylinder may be heated, e.g. by an electric element 50. The carrier depressions may be formed in a removable plate 32 secured on the cylinder 30, and may take the form of grooves extending along the cylinder at a slight angle to its axis. A sheet 70, e.g. of polytetrafluoroethylene, may be secured around the impression cylinder 60. The member 110 may comprise a thin metal plate secured to the cylinder 105; it may be ribbed, preferably transversely to the axis of the cylinder. The apparatus may be adapted to coat either webs or separate sheets, and in the latter case means are provided for registering the front and side edges of the sheets by means of fingers 80 and an oscillated bar 90 respectively, and grippers are provided on the cylinders 60 and 105, on a transfer cylinder 120 and on a delivery conveyer 142. The coating cylinder 30 has an eccentric mounting 32 (Fig. 4) which is rotated to move the cylinder into operative position in synchronism with the operation of the sheet feeder, a cam 160 rotating with the impression cylinder 60, and acting on a follower 162, pivot arm 163, arm 168 and crank member 168 connected to the mounting 32. Detectors 98 and 155 are provided and, if they detect an abnormal condition, such as the absence of a sheet, energize a solenoid 170 which rotates the arm 165 and separates the cylinders 30 and 60; the sheet feeding mechanism is preferably stopped also.