baber/WOPTO huggingface dataset:
Patent GB-1378491-A (GB)
Title: Glass bending apparatus
IPC: C03B23/06
Filed: 1971-11-11
Abstract: 1378491 Bending glass rod or tube JAMES A JOBLING & CO Ltd D CURTIS and A M HOOPER 11 Nov 1971 [14 Aug 1970] 39334/70 Heading C1M Apparatus for continuously bending an advancing elongated glass rod or tube 1 comprises a frame 4 guide rollers 2, 3 on the frame 4 to support and guide the tube 1, a heating device 5 in the path of movement of the tube 1 to heat it continuously locally as it advances a carriage 10 mounted on a guide 11 of the frame 4 for vertical movement and with a shaft 8 mounted thereon by bearings 9 for rotation about an axis normal to the direction of movement of the carriage 10, the shaft 8 having at one end a crank arm 7 and clamp 6 for clamping the end of the tube 1 and at the other a cam member 20 with cam track 21 engaged by a cam roller 23 on frame 4, the shaft 8 being rotated, when the glass is softened, by power means such as a weight 19 on a cord 18 wound over a drum 17 on the shaft 8 and the tube 1 thereby being bent in an arc which varies by displacement of the cam and cam follower. The position of the carriage 10, which moves up and down with the shaft 8, is maintained by a weight 16 on a cord 14 over a pulley on frame 4. The apparatus is particularly for forming glass tube spirals.
Patent GB-1478388-A (GB)
Title: Electrolytic capacitor
IPC: H01G9/06
Filed: 1974-09-10
Abstract: 1478388 Electrolytic capacitors INTERNATIONAL STANDARD ELECTRIC CORP 10 Sept 1974 [20 Sept 1973] 39429/74 Heading H1M In a solid electrolytic capacitor having a conductive layer 2 applied over the solid electrolyte layer, electrical contact between cathode lead 5, sealed into glass envelope 4, and conductive layer 2 is through a pressure-deformed mass of deformable conductive material 3. Material 3 may be a tin alloy, e.g. containing cadmium and lead, sprayed on to layer 2 as a porous mass whose melting point is just above the temperature existing during sealing of the glass envelope. Preferably as shown cathode lead 5 has a thickened end 6, and the required pressure is exerted on the anode lead 8 during assembly of the capacitor.
Patent GB-1470309-A (GB)
Title: Vehicle braking system
IPC: B62D11/08
Filed: 1974-09-10
Abstract: 1470309 Fluid pressure brakes J I CASE CO 10 Sept 1974 [17 Sept 1973] 39452/74 Headings F2F and F2E A braking system for a vehicle such as a farm tractor having left and right rear brakes comprises left and right master cylinders 30L, 30R co-operating with the brakes, a fluid source for each cylinder, left and right fluid circuits 22, 24 and force selectors in the circuits arranged to produce a first braking force for each rear brake when both master cylinders are in operative position and a second, greater force for one rear brake when one master cylinder is inoperative. The circuits 22, 24 include valves 44L, 44R respectively which include pistons 48L, 48R normally held in a first position by a spring 52L or 52R, ports 42L, 42R, 54L, 54R, 56L, 56R and 62L, 62R, the pistons having grooves 64L, 66L, 64R, 66R. When brake pedals 34L, 34R are actuated simultaneously both circuits are pressurized, pistons 48L, 48R move to a second position so that only fluid motors 38L, 38R are actuated in the rear brakes. To make a sharp turn one pedal is depressed and both motors 38 and 58 will be operated to provide a greater force on one wheel the front brakes not being operated. In a system employing a single brake actuating arm 100 levers 102 are pivoted on brackets 104 at their lower ends and are connected at their upper ends by a pin 106 extending through a hub 106 on arm 100 the motor 38L having its piston-rod 107 connected to pin 106 while the piston-rod 105 of the second fluid motor 58L is connected through a lostmotion connection 108. In a modification, Fig. 4, an arm 110 is pivoted on a pin 111 carried intermediate opposite ends of a lever 112 pivotally supported on a fixed pin 113 while the opposite end has a slot 114 receiving a pin 115 carried by a second lever 116 so that the mechanical advantage is varied in accordance with the operation of one motor or both.
Patent GB-815276-A (GB)
Title: Silicon tetrachloride production
Inventor: PALLISTER THOMAS KNOTT
IPC: C01B33/08
Filed: 1956-12-28
Abstract: Silicon tetrachloride is produced by passing chlorine through a hot fluidized bed of finely divided silicon mixed with a finely divided inert diluent, e.g. carbon, alumina, or silica in the form of quartz or crystobalite.  The mixture may have a particle size of less than 10 mesh per linear inch.  The ratio of silicon to diluent may be 1-5 to 3-1, e.g. 1 to 1.  The silicon may be 96-99 per cent pure, or may be a ferrosilicon containing less silicon.  The mixture may be heated to 800 DEG  C. before reaction. Reaction may take place in a vertical tube, tapering to a point at the base and flaring out at the top, which is surrounded by a cooling water jacket.  The gas evolved may be passed first through a condenser for ferric chloride and then through one for the desired silicon tetrachloride product.  Two examples are given specifying apparatus dimensions and rates of flow.
Patent GB-1027628-A (GB)
Title: Improvements in or relating to combined cinematograph cameras or projectors and sound recording or reproducing equipment
Inventor: FRANCIS JOHN HENRY
IPC: G03B31/00
Filed: 1962-10-19
Abstract: 1,027,628. Automatic tension control; cine apparatus. TECHNICOLOR CORPORATION OF AMERICA. Oct. 17, 1963 [Oct.19, 1962b No. 39624/62. Headings G2E and G3R. [Also in Division G5] In a combined cinematrograph camera or projector and sound recording or reproducing equipment, the speed of the film 55 past a sound pick-up is made equal to the average speed of the film as advanced step-by-step past a projector gate 23. The step-by-step movement is produced by claw 17 driven by motor 16, the film passing over a drum which is driven by another motor associated with a fly-wheel. The motor 16 is provided with an electromagnetic brake 82 controlled by photo-cell 75, the light falling upon which is governed by shutter 76 actuated by a feeler 80 co-operating with loop 56 of the film formed between the drum and the intermittent advancing mechanism. If the loop is large, due to the portion of the film engaging the drum leading the portion passing through the gate, the output of the photo-cell is at a minimum, the brake being substantially de-energized so that the motor 16 is accelerated. When the loop 56 is contracted, the shutter 76 is rotated to present increasing amounts of the aperture therein to the photocell 75. The brake is applied to retard the motor 16 under these circumstances. In another arrangement, the brake is applied to the drum which may be located, together with the loop, after the intermittent drive.  A detachable assembly comprises a shoot into which an extension of a casette may be inserted, the edge of the casette engaging levers to retract them and a mirror out of the path of the nose of the casette, this movement being limited by engagement of a claw with a resilient stop. When the nose of the casette has passed fully into the shoot, the parts are spring-returned so that the mirror projects into the chute and reflects light through a gate-plate. The film enwraps a major portion of a drum and then passes in a loop to the projector gate over a pressure plate, past which it is intermittently advanced by reciprocation of the claw. On leaving the gate, the film passes back into the casette. The drum is rotated at a controlled speed by an electric motor coupled through flexible belting with a fly-wheel. The motor also drives friction rollers which bear against the film where it engages the drum. An electromagnetic pick-up co-operates with a sound track on the film.
Patent GB-1376527-A (GB)
Title: Plasma welding and or cutting torch
IPC: B23K10/00
Filed: 1972-08-25
Abstract: 1376527 Plasma blow torch MESSER GRIESHEIM GmbH 25 Aug 1972 [28 Aug 1971] 39723/72 Heading H5H The rod cathode 15 of a plasma welding and cutting torch is automatically centred relative to nozzle orifice 32 when the nozzle 31 to attached assembly 13, 31 is secured to the torch body. A cathode centering element 29 of ceramic, provided with gas passages, is disposed in one end of an axial bore of the nozzle holder 13 and the nozzle 31 is screwed into the other end of the bore. An insulating member 12 is secured by screws 23 to a copper electrode holder 11 and is provided with a flat surface 27<SP>1</SP> against which a flat surface 27 of nozzle holder 13 is slidable in the direction A. Thus, when the nozzle holder 13 containing the centering element 29 is fixed to the torch body by screwing the sleeve nut 37 to a threaded ring 35 seated on insulating member 12, the nozzle holder 13 will slide in the direction A until the electrode 15 is centred on nozzle orifice 32 by the centering element 29. A ceramic sleeve 40 is screwed at 39 to nozzle holder 13 and surrounds sleeve nut 37. The electrode holder 11 and insulating member 12 are surrounded by a plastics tube 41 enclosed in a guard tube 42. The torch can work in the transferred or non- transferred mode.
Patent GB-1121765-A (GB)
Title: Filing cases or storage devices
IPC: B42F13/12
Filed: 1966-09-06
Abstract: 1,121,765. Filing papers. GTV GESELLSCHAFT FUR TRANSPORT UND VERKEHRSWESEN m.b.H. 6 Sept., 1966 [18 Sept., 1965], No. 39784/66. Heading B6E. A binder for filing articles, such as paper charts 3 having central apertures therein, or spools of film, gramophone records or the like, comprises covers 1, 1a hinged to a spine 1b filing posts 2 secured to the cover 1a and having snap fastener top ends, and one or more cooperating snap fasteners 4 in the cover 1, whereby in the folded condition, the cover 1 is releasably retained by the fasteners. The stacks of charts 3 &c. are retained on the posts by discs 5 having central apertures which are a friction fit on the posts, and have flared flanges 6 which assist removal of the discs. When spools (9 Fig. 2) containing rolls of film are to be filed, the bottom ends of the spools are located on studs (8) on a disc (7) on the post 2, and they are retained in position by the top disc 5. The covers 1, 1a, spine 1b and discs 5 and (7) may be formed in plastics material.
Patent GB-1087353-A (GB)
Title: A process for producing a transparent original
IPC: G03F1/00
Filed: 1964-09-30
Abstract: A transparent original for optical projection is made by providing on a transparent support layer a rough surface layer of polymeric material, of which the rough surface has been formed by a blushing process, marking the rough surface layer with a marking substance, e.g. ink, and making the rough surface layer transparent (see Division G2).  The surface layer may contain wax, pigment and plasticizer.  It may be blushed by depositing it from solution in a solvent miscible with water so that water condenses onto the surface as the solvent evaporates, or by selecting a solvent composition such that a poor solvent is mainly retained in the final period of drying. There may be a subbing layer between the support and surface layers. In the Examples: (1) a polyester transparent base is coated with a subbing layer of polyester in methyl ethyl ketone and toluene, then with a solution of nitrocellulose in acetone, methylene chloride methanol and butyl acetate and the solvents are evaporated in warm air at 60-65% relative humidity; (2) a polyester base is subbed as in Example (1), coated with a solution of nitrocellulose in acetone, ethyl acetate, methanol and butyl acetate, and the solvents evaporated as in Example (1); (3) a polyester base is subbed as before and then coated with a solution of nitrocellulose and dibutyl phthalate in acetone and methanol, the solvents are evaporated at 70% relative humidity; (4) a polyester base is coated directly with a solution of polyester resin in methyl ethyl ketone, acetone and methylene chloride and dried in warm air at 65% relative humidity; and (5) a polyester base is coated directly with a solution similar to that of Example (4) but containing also toluene and dried in air at 80% relative humidity.
Patent GB-1324397-A (GB)
Title: Liquid explosive
IPC: C06B25/38
Filed: 1970-08-19
Abstract: 1324397 Explosive compositions TALLEYFRAC CORP 19 Aug 1970 [27 Oct 1969] 39928/70 Heading C1D A liquid explosive composition for use in fracturing a geological formation adjacent the bore of a water, oil or gas well comprises, by weight, substantially 50-80% of a nitroparaffin in which are dissolved or dispersed substantially 5-10% of a nitramine, 7-20% of a detonation and, for example, a nitro compound, 5-20% of a ballistic modifier, for example powdered metal, and a thickening agent. The nitramine may be RDX or HMX and the nitroparaffin nitromethane, nitroethane, nitropropane, or tetranitromethane. Detonation aids specified are nitroglycerine, ethylene glycol dinitrate, triethylene glycol dinitrate, PETN, and trimethylol trinitrate, and ballistic modifiers powdered Al, Mg, Zr, Be, Ti, or alloys thereof. Suitable thickening agents are nitrocellulose, cellulose acetate, methyl cellulose, and cellulose acetate butyrate. Other optional additives are wetting agents, pyrolytic silica as a thixotropic agent, and chalk, resorcinol, ethyl centralite, or nitrosodiphenylamine as stabilizers or acid scavengers. In use, the explosion propagates through narrow fissures containing the explosive. The pumping rate of the explosive into the fissures is controlled to avoid auto-ignition.
Patent GB-911821-A (GB)
Title: Improvements in and relating to the production of adhesives and adhesive films
Inventor: DUNNETT PETER SIDNEY
IPC: C09J7/10
Filed: 1957-12-23
Abstract: An adhesive composition is produced by concurrently emulsifying rosin or a rosin derivative, e.g. polymerized rosin, pentaerythritol rosin esters, Spanish Gum, and a plasticizer, e.g. dicyclohexyl phthalate (both fused together beforehand if desired), in a dispersion medium, e.g. stabilized ammoniacal monoethanolamine oleate comprising the rosin constituent, if desired, and then blending the resultant emulsion with further plasticizers (if desired in molten condition) and with either further rosin constituent or a mixture comprising a synthetic resin emulsion, e.g. polybutyl methacrylate and rubber latex. Stabilizers, e.g. alginates, hydroxy cellulose ethers, bentonite, and a solvent for the plasticizer, e.g. xylol, carbon tetrachloride, butyl acetate may be added to the emulsion which may be coated on a subtrate as a film and dried at low temperature to produce a non-tacky layer activatable by heat to become tacky.
Patent GB-967245-A (GB)
Title: A combined battery torch and writing instrument
Inventor: KEUN CHANG YU
IPC: B43K29/10
Filed: 1961-11-10
Abstract: 967,245. Electric battery lamps combined with writing implements. LEUNG KIM PING. Nov. 10, 1961, No. 40287/61. Heading F4R. [Also in Division B6] In a combined battery torch and writing instrument, a propelling pencil 13 is mounted coaxially in the transparent head 12 of the torch comprising a cylindrical metal body 10 with an electrical switch means 11. The propelling pencil is of any known construction wherein the pencil lead 21 is extruded or withdrawn by rotation of the member 22. A centre pole battery (not shown) is held into contract with a bulb 50 by a spring 34 in the usual manner. The switching means 11 includes recessed disc member 30 of insulating material, with an integral sleeve 31 provided with opposed flat-surfaces 32 (Fig. 2). A metal disc 33 attached to the spring 34 is provided with upstanding tongues 35 centrally disposed about a spindle 36. Riveted to the spindle 36, is a rotatable cap 38 of insulating material which has four internal grooves 44, 45, 46 and 47. A pocket clip 26 with an annular mounting ring 27 is connected to an inturned flange 25 of the body 10 by a metal collar 28 which terminates in an upwardly extending cylindrical portion 29. A circlip-shaped spring member 39 completes the circuit between the battery and bulb via the body 10 and a clip 24 when in the position shown in Fig. 2. On rotation of the cap 38 through 90 degrees, a central loop 40 of the member 39 is pressed inwardly until the next groove 45 or 47 is reached, giving positive " on-off " positions. The contacts 43 of the member 39 are then in engagement with insulated surfaces 49 of the sleeve 31, thereby breaking the circuit. The propelling pencil may be replaced by a ball-point pen.
Patent GB-1087298-A (GB)
Title: Improved television camera
IPC: H04N5/228
Filed: 1963-10-14
Abstract: 1,087,298. Television cameras. W. J. ELLIOT. Oct. 14, 1963 [Oct. 14, 1963], No. 40373/63. Heading H4F. The characteristics of the signal from a photoconductive pick-up tube 4, e.g. a vidicon, are modified by subtracting therefrom in a mixing circuit 9 the signal obtained from a second similar pick-up tube 5, the image resolution of which is reduced below that of tube 4 by providing detachably secured adjacent the tube target either a ground glass translucent element or a translucent-transparent element formed by partially repolishing a ground glass plate. The arrangement may function 1 to compensate for transverse leakage effects in the tube target, 2 to compensate for aperture distortion due to finite size of scanning beam and optical aberrations, and 3 to enhance fine picture detail. By including a non-linear amplifier 12 in the channel for the signal from tube 5, the response characteristic of tube 4 is effectively compressed such that a logarithmic increase in light values results in a linear increase in electrical signal.
Patent GB-817657-A (GB)
Title: Improvements in or relating to pneumatic tire construction
Inventor: GAY CLARENCE RUSSELL
IPC: B60C9/00
Filed: 1957-10-15
Abstract: 817,657. Pneumatic tyres. FIRESTONE TIRE & RUBBER CO. Oct. 15, 1957, No. 40502/58. Drawings to Specification. Class 144 (2). A pneumatic tyre has a carcase of not more than two plies of parallel cord fabric the individaul cords of which are of twisted rayon yarn and have a denier of from 8,000 to 10,400, each ply being laid so that the cords cross the mid-circumferential line of the tyre at an angle of from 28 to 38 degrees. Where two plies are used, the cords of the respective plies are in crossed relation. In the preferred tyre, two plies each of 4400/2 rayon cords are disposed in crossed relation at a cord angle of 32 degrees.
Patent GB-1489405-A (GB)
Title: Lubricant compositions
IPC: C10M169/04
Filed: 1974-09-18
Abstract: 1489405 Lubricants LUBRIZOL CORP 18 Sept 1974 [1 Oct 1973] 40708/74 Heading C5F A gear oil comprises a base oil, an extremepressure agent and an oil-soluble homo-polymer (which term is defined to include polymers derived from mixtures of isomers) of a non- aromatic olefine of at least three carbon atoms. This polymer has a number-average molecular weight of 750 to 10,000 and is present in an amount such as to allow the product to be a multigrade gear oil, defined in terms of the SAE standards of 1974. The base oil may be animal, vegetable, mineral or synthetic or mixtures of these; lists of suitable oils are given. The extreme-pressure agent may be an organic compound of boron, sulphur, a halogen, halogen and sulphur, phosphorus, or phosphorus and sulphur or may be an ester, amide or salt of an acid of phosphorus or of a carboxylic acid; again many are listed. In particular, it may be a mixture of organo-thio-phosphonyl salts and sulphurized hydrocarbons. The oil may also contain a known pour point depressant or other known additive (many listed).
Patent GB-1379139-A (GB)
Title: Method for the fluxless soldering or brazing of aluminium and its alloys
Inventor: SCHOER H D
IPC: B23K35/28
Filed: 1972-09-01
Abstract: 1379139 Soldering VEREINGTE ALUMINIUM-WERKE AG 1 Sept 1972 [2 Sept 1971] 40764/72 Addition to 1333030 Heading B3R [Also in Division C7] The process of fluxless soldering or brazing which is the subject of Specification 1,333,030, is modified by the use of an alloy containing 2 to 46% aluminium, 0À00001 to 1À0% beryllium and optionally 0À01 to 10% of one or more of bismuth, strontium, barium and antimony, the balance being zinc.
Patent GB-1010065-A (GB)
Title: Electrolytic process for coloring metal surfaces
IPC: C25D9/06
Filed: 1961-11-16
Abstract: A layer of lead oxide less than 2 microns thick which produces interference colours is electrodeposited on an anodic metal surface from an aqueous solution containing lead ions and of pH 2-7 or from an alkaline aqueous solution containing plumbic acid ions, the colour produced depending on the thickness of the layer. The solution may comprise lead nitrate or lead acetate or be formed by dissolving lead hydroxide in caustic alkali. Patterns may be provided by interposing a mask between the electrodes or by using a shaped cathode.  The method may be used for continuous treatment of strip.  The layer may be formed directly on a metal such as Fe or Ni but metals such as Zn, Sn or Cr which would otherwise dissolve during the anodic treatment must first be plated with a metal such as Fe or Ni.  A surface, after coating with lead oxide, may be painted with a transparent paint.
Patent GB-1443494-A (GB)
Title: Vacuum cleaner
Inventor: MATTSSON B G
IPC: A47L5/36
Filed: 1974-09-20
Abstract: 1443494 Suction cleaners ELECTROLUX Ltd 20 Sept 1974 [5 Oct 1973] 41130/74 Heading A4F A suction cleaner comprises a tool 11 connected to and guided by a hand held intermediate part 12 comprising a dust collecting container coupled by a hose 28 to a casing 13 normally standing on the floor and which may contain motor fan unit 32, the tool 11 being manipulated by a handle 20 on the part 12, and electric current controlling means being provided on or adjacent the handle 20. Within the dust collecting container a dust bag (19), Fig. 2 (not shown) is disposed within a foraminous basket (18). A switch 29 on the handle 20 is combined with an indicating lamp, and controls the fan motor via a loose supply cable 30 in the handle 20 and the hose. An electrically operated member may be provided in the tool 11.