baber/WOPTO huggingface dataset:
Patent GB-1022084-A (GB)
Title: Mold
Inventor: JURGELEIT HERBERT FREDERICK
IPC: B29C45/02
Filed: 1964-02-28
Abstract: 1,022,084. Injection moulding. UNITED STATES RUBBER CO. Feb. 28, 1964, No. 8332/64. Heading B5A. Relates to a mould comprising at least two parts which co-operate to define a mould cavity 13, at least one of the parts having a land 16 which surrounds the cavity and engages the other mould part to form a flash-preventing seal. According to the invention the land 16 is provided with a finish in which all finish marks emanate from a point on the central axis of the mould cavity, thereby forming short escape paths for trapped air. The finish may be a micro-inch finish produced by grinding (Figs. 8, 9, not shown), or machining or by abrasives. Figs. 3 to 7 (not shown) illustrate a number of examples of multipart moulds used with the invention, similar to moulds shown in Specifications 958,271 and 958,272.
Patent GB-742944-A (GB)
Title: Improvements in rotary cylindrical valves
IPC: F16K5/18
Filed: 1953-03-26
Abstract: 742,944. Valve closure members. PONSFORD, G. D., and PONSFORD, W. G. D., [trading as PONSFORD & SON, D. G.]. May 26, 1954 [March 26, 1953], No. 8363/53. Class 135. A rotary cylindrical valve has a valve member which is divided longitudinally into a pair of semi-cylindrical halves 5 normally drawn together by springs 12 to give the valve member a contracted diameter which is an easy working fit in the valve housing 1, and the valve member is mounted on an axial shaft 9, which rotates the valve member in its contracted form and is capable of a limited continued rotation with respect to the valve member after the latter has reached a stop 28 defining its closed position, such further rotation serving to expand the valve member into tight contact with the housing. The shaft 9 is provided with a pair of opposed cones 26, 27 adapted to engage conical recesses 25 in the ends of the valve member. The cone 26 is fixed on the shaft 9, whilst the cone 27 is formed as one end of a sleeve 17 slidable in a boss 19, in one of the end plates 2 of the valve housing. The sleeve 17 carries a circular head 20 bearing a face cam 21 and is prevented from rotating by two or more studs 22 secured in the boss 19. Fixed to the shaft 9 is a disc 23 bearing cam follower rollers 24. The shaft 9 is operated by a lever 13 either manually or by a remotely controlled air piston. The shaft 9 carries two arms 14 and its motion is transmitted to the valve member through tension springs 15. When the valve member reaches the closed position, one edge of a quadrant piece 29 revoluble with the valve member engages a fixed pin 28. Continued rotation of the shaft 9 against the tension of the springs 15 causes the rollers 24 to roll up the cam face 21 so that the cones 26, 27 are moved towards one another and the two valve halves tightly engage the walls of the housing. On reverse movement of the shaft 9, the rollers 24 are moved off the cam rises so that the pressure on the cones 26, 27 is released. Thereafter, the arms 14 engage stops 30 projecting from the ends of the closure member so that the latter is moved positively to its open position.
Patent GB-1390383-A (GB)
Title: Pneumatically assisted hydraulic spray coating apparatus
IPC: B05B7/08
Filed: 1972-03-03
Abstract: 1390383 Spray guns ELECTROGASDYNAMICS INC 3 March 1972 [3 March 1971] 8380/72 Heading B2F  In an "airless" spray gun which delivers a thin expanding fan shaped spray, gaseous jets are directed onto the planar faces of the spray to assist atomisation. Gaseous jets may also be directed onto the marginal side edges to control spread. Liquid to be sprayed is supplied under low pressure through a conduit 30 and bore 36 under the control of a spring-biased valve rod 54 actuated by a trigger 14, to a bore 42 discharging into a chamber 46 having an elongated nozzle orifice 48. Air is supplied to an electrogasdynamic power generator 20 which results in a high d.c. voltage at an electrode 24 connected via elements 76, 38, 40 to the nozzle tip 44. Most of the air is vented through a duct 28, the remainder passing through conduit 80 and bore 82 to the jet passages 86 and apertures 88. A valve 96 controls the flow of air to the spray.
Patent GB-567403-A (GB)
Title: Improvements in or relating to electrical fuses
IPC: H01H85/54
Filed: 1943-05-27
Abstract: 567,403. Fusible cut-outs. DENNIS, G. P. May 27, 1943, No. 8478. [Class 38 (i)] A bridge carrier fuse of the kind having blade-like contacts 15 on the movable member 13 fitting into U-shaped contacts 10 on the base 1 has in the recess 4 in the U-shaped contact 10 a pin 9 or similar obstruction that co-operates with the projecting end 16 of a U-shaped portion 15a of the blade 15 to prevent accidental displacement of the carrier. The pin 9 is towards one end of the contact 10, the carrier being inserted at the open end, as shown in dotted lines in Fig. 6, and then moved endwise to bring the part 16 beneath the pin. In this position, a recess 26 on the carrier registers with a recess 27 on the base so that a rod or wire can be passed through the aperture so formed and secured by a seal. A transverse baffle 28 on the carrier fits against one wall 1a of a well in the base to prevent arcing between the contacts. The contact 15 is attached to the carrier by a U-shaped clip 21 fitting over the end of a boss 17 into which the contact is recessed, an internally-screwed bush having a square head 20 being passed through the assembly and secured by a screw 18, a square washer 22 being interposed to grip the fuse. wire 23. According to the Provisional Specification, the blade contacts may be slotted or recessed to engage the pins 9.
Patent GB-1222242-A (GB)
Title: Optical correlation system for received radar signals in pseudo-randomly coded radar systems
IPC: G01S13/28
Filed: 1968-02-21
Abstract: 1,222,242. Pulse radar. COMPAGNIE FRANCAISE THOMSON HOUSTONHOTCHKISS BRANDT. 21 Feb., 1968 [22 Feb., 1967], No. 8512/68. Heading H4D. [Also in Divisions G1 and G2] An optical correlator system for extracting information as to range and target speed from received radar echo signals corresponding with signals originally transmitted in pseudo random code uses the received signals to control a modulatable light source 1. The modulated beam from this is directed through a movable screen 5 to a light receiver 11. The screen carries in one sector a track providing the pseudo random code, which is read by a separate source 9 and photo-detector 10 and used to control the radar transmitter. In other sectors the screen carries a series of parallel reference tracks, each track in the series representing the effects of different amounts of Doppler shift on the transmitted signals and the modulated beam from the source 1 is transmitted through these to the receiver 11, which may be a photo-diode matrix or vidicon tube &c. The screen also carries reference markers 8 which are also interrogated by a light beam, the resulting signal being used to control synchronization of the overall system. The signals received at 11 are continuously integrated, to provide for each point in the receiver matrix as the screen moves through the beam from source 1 a value of the correlation function. All the points are scanned to determine the position in time at which this function reaches a peak. This position represents the required range. Furthermore, the synchronization system operates so that the tracks representing the reference for different Doppler shifts are used successively, to determine which of these provides maximum correlation, and hence the target speed. As shown in Fig. 4, the screen is in the form of a rotating disc, with the parallel reference tracks in successively narrow arcs of sectors of the disc. The reference track corresponding to a given Doppler shift is stepped successively towards the disc centre in adjacent sectors, to enable the entire correlation for one reference track to be formed in successive bands 191 and 195 across a vidicon tube 19 situated in a position covering an area equivalent to one sector. The bands are scanned successively in accordance with synchronizing pulses to provide a read out of correlation function related to time. Fibre optics may be used to direct the light beams in the system (Fig. 9, not shown). By suitable switching and operation of the vidicon tube, the reference tracks 181-185 on the disc need only be stepped inwards twice, thereafter retuning to the outermost track (Fig. 8, not shown). The tracks may be recorded on a rotating drum rather than a disc (Fig. 10, not shown).
Patent GB-1415846-A (GB)
Title: Implements for displacement of crop lying on the ground
IPC: A01D78/10
Filed: 1972-11-07
Abstract: 1415846 Hay making machines TEXAS INDUSTRIES Inc 7 Nov 1972 [9 Nov 1971 26 Nov 1971] 8598/75 Divided out of 1415845 Heading A1F A hay making machine is provided with downwardly extending supporting members 17 which are coupled by rods 18 to at least one tine support 24. The members 17 are rigidly attached to a driven hub 14 which initially rotates independently of an annular member 26 carrying the tine supports 24 to an extent limited by a stop 36 mounted on one of the supporting members 17 abutting a projection 34 on a tine support 24. During this period of relative rotation the coupling rods 18 rotate the tines 10 about their supports from a tangential inoperative position, ghosted in Fig. 5 to a radial operative position. When the limit of this relative rotation is achieved, the tine supports 24 rotate with the hub 14. When the drive to the hub 14 is arrested, the inertia of the tine supports 24 drives them relatively to the hub 14 causing the coupling rods 18 to effect a retraction of the tines 10 back into the inoperative position.  The stop 36 may be turned to a second position wherein a different face abuts the projection 34 in order to provide a different tine position. The stop is secured in either position by an over-centre toggle mechanism. Other features disclosed in the specification form the subject matter of Specification 1415845.
Patent GB-1438460-A (GB)
Title: Process for the manufacture of tetrafluoroethylene
IPC: C07C17/361
Filed: 1974-02-26
Abstract: 1438460 Tetrafluoroethylene HOECHST AG 26 Feb 1974 [27 Feb 1973] 8624/74 Heading C2C Tetrafluoroethylene is produced by pyrolysing octafluorocyclobutane in admixture with steam with a molar proportion of steam to octofluorocyclobutane of at least 4 : 1.
Patent GB-846116-A (GB)
Title: Improvements in or relating to cold gas liquefaction apparatus
IPC: F25J1/00
Filed: 1956-07-06
Abstract: 846,116. Liquefaction of gases; raising liquids by heating in pipes. PHILIPS' GLOEILAMPENFABRIEKEN N.V. July 6, 1956 [July 9, 1955], No. 8667/60. Divided out of 846,115. Classes 8(2) and 102(2). In cold gas liquefaction apparatus a bubble pump comprises a vertical pipe 13 heated at 15 and surrounded by a second pipe 16 containing the liquified gas which serves to insulate the liquid in the pipe 13; a further insulating layer 14 is provided. In a modification the bubble pump is fed with liquid from the surrounding liquid in the pipe 16.
Patent GB-560256-A (GB)
Title: Improvements in or relating to torque transmitting mechanisms
IPC: F16D47/06
Filed: 1942-06-24
Abstract: 560,256. Clutches. BORG-WARNER CORPORATION. June 24, 1942, No. 8691. Convention date, July 24, 1941. [Class 80 (ii)] [Also in Group XXIX] Driving and driven members are interconnected by a fluid coupling F, a freewheel clutch O, and a speed-responsive positive clutch S, the clutches O, S, being in series with one another and in parallel with the coupling F. The impeller 12 of the latter is fixed to a collar 18 connected to the driver 10, and the runner 13 to the driven shaft 14. The cylindrical face 51 for the rollers 52 of the clutch O is formed in the collar 18 and a ring 49 having cam surfaces 50 for the rollers 52 is journalled on a flange 41 of the collar 18. A spring 54 acting on a cage 53 holds the rollers 52 in engagement with the surfaces 50, 51. The inner part of the ring 49 has recesses 59 for engagement with pawls 60. The latter have axially-extending arms 63 embraced by garter springs 64 and are cammedshaped at their outer ends. The arrangement is particularly applicable to the transmission of a motor vehicle. In operation, at low vehicle speeds, the member 14 is driven solely through the fluid coupling F. When the vehicle speed reaches a predetermined value the pawls 60 move outwardly and ratchet over the inner face of the ring 49. The driving torque is then reversed, e.g. by decelerating the engine, whereupon the pawls 60 engage the recesses 59. Upon increase of engine speed the shaft 14 will be positively driven through the clutches O, S. If the engine is used as a brake the load is taken through the fluid coupling F. At low speeds the clutch S disengages.
Patent GB-996637-A (GB)
Title: Improvements in or relating to diagnostic x-ray units
Inventor: SEYMOUR ALEXANDER WILLIAM CHAR
IPC: H01L23/31
Filed: 1963-03-05
Abstract: 996,637. X-ray apparatus. WATSON & SONS (ELECTRO-MEDICAL) Ltd. March 3, 1964 [March 5, 1963], No. 8717/63. Heading H5R. A diagnostic X-ray unit, in which the table 10 is tiltable about a horizontal axis, incorporates an image intensifier 7, carried by a support 6 which is rotatable, about the horizontal axis, in a carrier member 4, with the intensifier lying on or near the axis and which carries a mounting 11, 12 for an X-ray tube 13 and a frame 9 for supporting the table 10 between the X-ray tube and the intensifier. The unit is designed to obviate the necessity for counterweights to balance the intensifier when the table is tilted from the horizontal about the horizontal axis, to a vertical position (Fig. 3, not shown). The carrier member 4 may have to be raised between the pillars 2 of the main frame 1 to allow the table to be fully rotated. Instead of the frame 1, a single column (Fig. 4, not shown) may be used, up and down which slides a carriage carrying the rotatable support 6. The movement of the parts of the unit is powered by electric motors. A Bucky diaphragm 14 and a serial changer 15 are located in the slots 16 of the frame 9 and are brought into a central operation position manually or by motors. Lead plates may be provided to shield the unexposed films contained in these devices. A palpator 18 of X-ray transparent material, on a hinged lever 19, may be provided and is operated by hydraulic and/or electric means. A control panel C may be located on the end of the support arm 12.
Patent GB-1024382-A (GB)
Title: Metal-polyurethane laminates
Inventor: PIGOTT KENNETH ALLEN
IPC: B29C65/48
Filed: 1963-03-05
Abstract: In the production of polyurethane-metal laminates by first applying to the metal surface an epoxy adhesive, and then applying a molten polyurethane (see Division B5), the epoxy adhesive may be a glycidyl polyether prepared by reacting a polyhydric phenol or polyhydric alcohol with an epihalohydrin in an alkaline medium at 80 DEG  to 110 DEG  C. for 1/2 to 3/4 hour, discarding an upper layer thus formed and washing the lower layer with hot water.  The resinous polymeric epoxide or glycidyl polyether has a 1,2-epoxy equivalency of between 1.0 and 2.0.  A hardener or curing catalyst is incorporated into the epoxy adhesive such as a primary, secondary or tertiary amine along with certain thixotropic agents such as bentonite-amine reaction products and esterils. Before being applied as a coating the epoxide and the catalyst may be separately dissolved in solvents such as acetone, ethylene, glycol, monomethylether acetate, methylisobutyl ketone, xylol, methylethyl ketone, toluene, xylene and isopropanol. The polyurethane is made by reacting any of polyhydroxyl polyesters, polyester amides, polyhydric polyalkylene ethers, polyhydric polythioethers and polyacetals with an organic polyisocyanate and a chain extending agent. The members of the first group should have a molecular weight of at least 400 and preferably between 600 and 4500, and a hydroxyl number of from 190 to 25.  The chain extending medium e.g. polyhydric alcohols should have a molecular weight not less than 500.  The polyurethane is formed by using a casting method, millable gum technique, or the green stock technique.ALSO:A process for tightly bonding a polyurethane plastic to a metal surface comprises coating the metal surface with an epoxy adhesive, heating the coated metal surface to a temperature of 80-150  DEG C. and applying a molten polyurethane plastic to the heated coated metal surface.  The metal surface (e.g. steel, cast iron, aluminium, tungsten carbide, copper or its alloys) is cleaned by sand blasting and degreasing.  A uniform coating of the epoxy adhesive is then applied by brushing, spraying or dipping; the epoxy adhesive being applied directly or as a mixture of the epoxy polymer dissolved in a solvent together with a curing agent or catalyst also dissolved in a solvent.  The adhesively coated member is then heated for 30 minutes at a temperature between 80-150  DEG C.  Alternatively the epoxy adhesive can be cured at normal room temperatures, and then the coated member heated.  The polyurethane coating is then applied to the hot adhesive-coated metal object either by direct casting in a mould or by the use of an injection mould.
Patent GB-622604-A (GB)
Title: Improvements in metal spacer bobbins for trawl net ground ropes
IPC: A01K75/06
Filed: 1947-04-01
Abstract: 622,604. Fishing. PHILLIPS, J. W. April 1, 1947, No. 8777. [Class 48] A steel spacer-bobbin for trawl-net ground-ropes consists of a tube a presenting end surfaces of increased diameter and provided at its mid-length with welded-on means for centering the attachment to the trawl-net, the means comprising either a pair of spaced collars b or an eyed lug or pair of eyed lugs. The increased diameter may be obtained by belling the tube or alternatively short lengths of tubing belled at one end can be loosely fitted into each end of the main tube. To prevent wear the end surfaces of the spacer bobbin may he heat treated.
Patent GB-804531-A (GB)
Title: Improvements in or relating to caliper gauges, height gauges and like instruments for measuring distances on work pieces
Inventor: LURY GUY
IPC: G01B3/20
Filed: 1956-03-21
Abstract: 804,531. Linear dimension gauges. ALL PRECISION ENGINEERING, Ltd. Dec. 19, 1956 [March 21, 1956], No. 8874/56. Class 106 (2). A gauge comprises a stem 11, a carrier 20 slidable along the stem 11, an index member 42 for effecting measuring, and locating means 28 for clamping the carrier to the stem at any one of a succession of positions therealong, the locating means comprising a row of blocks 18 of circular section and of prescribed diameter which fit snugly within the bore 14 of the stem 11 and are disposed with their diameters end to end along the stem 11, end abutment means 15, 16 pressing against the end blocks to maintain the row in firm axial compression, a straight slot 17 extending continuously along substantially the whole length of the row of blocks 18, a plunger 24, on the carrier 20, having a nose portion formed with a V-notch 28 and slidable along the slot 17 in the stem 11. The fingers of the notch 28 are arranged to span and engage any one of the blocks 18, thereby centralizing the carrier 20 with respect to that block. The carrier 20 also carries a micrometer 50 to give fine adjustment to the index member 42, and the stem 11 has markings 53 read through an opening 54 in the carrier to indicate which one of the blocks 18 is engaged. Fig. 4 shows diagrammatically how the device may be used as a caliper gauge. A spring or spring washer (not shown) may be interposed between the blocks 18 and their clamping means 15 to keep the row tight.
Patent GB-960712-A (GB)
Title: Improvements in or relating to fluid diffusion apparatus
Inventor: DEPAULE SERGE
IPC: B01D59/12
Filed: 1961-03-10
Abstract: 960,712. Separating fluids by diffusion. COMMISSARIAT A L'ENERGIE ATOMIQUE. March 10, 1961 [March 30, 1960], No. 8894/61. Heading B1L. A device for the diffusion of fluids comprises a sealed enclosure having three apertures and, containing a plurality of diffusion elements in. the form of flat, parallel boxes having part of their large walls composed of a porous material, communication being provided between the diffusion elements and a cylindrical passageway extending through one of the apertures. The passageway is comprised of cylindrical inserts having mating surfaces and sealed in the diffusion elements with sealing joints between the inserts of adjacent elements. Fig. 1 shows a diffusion element 1 seen from its large side 6, formed of two half-shells of sheet steel welded along their lateral edges 4, 4a and 14, 14a. In the upper part 10 of the element an aperture 11 is provided for a fluid receiver or passageway traversing the diffusion elements. As shown in Figs. 2 and 3, two adjacent diffusion elements 1 and 1<SP>1</SP> are joined together by tie rods 8 and 8a which are surrounded by spacer tubes 9 and 9a to provide a fixed distance between the plates and support for tightening the plates. In aperture 11 rings 12 are inserted which form a cylindrical passageway for the effluent fluid ; between two rings sealing is ensured by an annular joint 13. Fluid to be diffused passes between the spaces 26 between adjacent diffusion elements and diffuses through the porous material 6a covering openings 5 into the diffusion elements themselves. Two cylindrical passageways each communicating with the diffusion elements may form the inlet and outlet of the fluid to be treated respectively. Such an arrangement is shown in Fig. 6 (not shown).
Patent GB-250578-A (GB)
Title: Improvements in clothes pegs
IPC: D06F55/02
Filed: 1926-04-06
Abstract: 250,578. Wing Clothes Peg Proprietary, Ltd., (Assignees of Drew, H. J., Drew, J. A. H., and Gardiner, J. F.). April 7, 1925, [Convention date]. Clothes-pegs; clips. - Comprise a pair of separate jaws with bifurcated ends held together by a loop of resilient wire with its central part passing transversely through the bifurcations and with its ends bearing against their outside faces. The jaws b, Fig. 4, are cut away as at c to permit entry of the line into the recess d. Slots e, Fig. 2, are cut in the jaws for passage of the central part of the spring loops a, the ends f bearing on the outer faces of the jaws. The loops a may be of the form shown in the full lines, Fig. 4, or of that shown in the broken lines, and the ends f may enter shallow recesses in the jaws. In the form shown in Fig. 6, the loop passes through recesses h in the top portion of the jaws. In making the pegs, shaped blocks of wood or other suitable material are placed together and the loops a fitted. By sawing between the loops a along the lines g, a complete peg is cut off at each operation.
Patent GB-984852-A (GB)
Title: Substituted succinimides and their production
Filed: 1963-03-07
Abstract: The invention comprises substituted succinimides of the general formula <FORM:0984852/C2/1> wherein R represents hydrogen or the methyl radical, and the preparation thereof by reacting a  - methyl - a  - phenyl - b  - ethylsuccinic acid or the anhydride or acid halide thereof with with ammonia or methylamine.  Therapeutic compositions having a tranquillizing activity and which may be administered orally in conjunction with a solid or liquid carrier contain as the active ingredient a substituted succinimide of the above general formula.  a - Methyl - a  - phenyl - b  - ethylsuccinic acid is prepared by reacting a lower alkyl ester of a -cyano - b  - methylcinnamate with potassium cyanide and ethyl bromide to form a ,b -dicyano-a  - ethyl - b  - methylphenylpropionate and hydrolysing and decarboxylating this compound by heating in the presence of aqueous sulphuric-acetic acid.  The corresponding acid halides and anhydride are prepared by conventional methods from the free acid, for example, heating the free acid with acetyl chloride forms the anhydride.