baber/WOPTO huggingface dataset:
Patent GB-1502808-A (GB)
Title: Pneumatic tyre for a vehicle
IPC: B60C5/01
Filed: 1975-04-17
Abstract: 1502808 Moulding tyres O SCHMIDT 17 April 1975 15890/75 Heading B5A [Also in Division B7] A cast or injection-moulded pneumatic tyre is free of reinforcing cords and comprises a body 3 of elastomeric material which extends from one bead of the tyre to the other to define the tyre cavity, an elastomeric tread 1, and a belt 2 of elastomeric material located beneath the tread, the modulus of elasticity at 20‹ C. and 50% elongation of the belt material being at least 30% greater than that of the body material. The modulus of the belt material may be 120- 400 kg/cm.<SP>2</SP> and that of the body material 30-135 kg./cm.<SP>2</SP>. The tyre may be made by casting or injecting a first elastomer into a mould to form the body 3, adapting the mould to provide a cavity around the outer periphery of the body 3 and then filling this cavity with a second elastomer to form the belt 2, and finally adapting the mould to form a cavity around the outer periphery of the body/belt assembly and filling this cavity with a third elastomer to form the tread 1, thereby producing a tyre as illustrated in Fig. 1. Alternatively the belt 2 may be prefabricated in a separate mould and then placed on the core of a mould into which a first elastomer is admitted to form the body and which then receives a second elastomer to form the tread, the tyre thus produced having the belt located on the interior surface of the tyre benath the tread (Fig. 2, not shown). The prefabricated belt may be formed with projections to space it from the core of a mould in which it is subsequently placed, whereby when the body 3 is formed in the mould the belt becomes embedded in the body, in this case the body and tread being formed from the same elastomer, (Fig. 4, not shown) or different elastomers, Fig. 3. The various elastomers used may be polyurethanes, specific examples of suitable materials being given in the Specification.
Patent GB-1063022-A (GB)
Title: Improvements in or relating to patterned embellishment strip
IPC: B32B27/00
Filed: 1964-04-17
Abstract: 1,063,022. Laminates and laminating. HOWARD CLAYTON-WRIGHT Ltd. (V. SHANOK, and J. P. SHANOK). March 19, 1965 [April 17, 1964], No. 15952/64. Heading B5N. An embellishment strip which may be affixed to vehicles, furniture &c. comprises a strip of transparent plastics material, e.g. P.V.C., decorated e.g. by printing, on one face and bonded on that face by a thermoplastic bonding agent such as P.V.C./P.V. acetal-, to a second strip of material, e.g. cellulose acetatebutyrate, both strips being longitudinally flexible but the carrier strip having relative, transverse rigidity, e.g. by the incorporation of a metal strip. The product may be made by melt extruding the carrier strip and pressing the printed and coated surface strip thereto, by a roller, before it cools, or, if after cooling with applied heat. The extrusion nozzle used may be shaped to produce a carrier strip of profiled section, the roller being complementarily shaped to press the surface strip against all parts of the carrier. The carrier and the embedded metal strip may extend laterally beyond the surface strip to give the effect of a metal edge. The pattern used may be of wood grain, for which a dark brown background may be provided by colouring the bonding material or the carrier. The surface material may be printed and coated as a web and subsequently slit.
Patent GB-562958-A (GB)
Title: Improvements in poles or standards
IPC: E04H12/08
Filed: 1943-01-19
Abstract: 562,958. Tubular posts. JOSEPH, B. C. Jan. 19, 1943, No. 15993/42. [Class 20 (i)] A hollow metal pole or standard is formed of tapering superposed sections 1 with socket joints 5, each section comprising sheet metal dished members 2, 3 with outwardly turned flanges 4, 5 which abut, the flange of the edge of one member being folded over the edge of the flange of the abutting member and the edges may be spot welded. The smaller end of each section has the flanges reduced in width at 9 so that the end fits the socket of the adjacent section which is slotted at its end at 15 to receive the untouched flanges of the lower section ; the socket portion may be provided with inwardly depressed portions 8 and outward depressed portions 7 for stiffening purposes. The smaller end of each section is also stiffened by an inwardly depressed circumferential portion. The uppermost section may be provided with a wooden core and the lowermost section with a spike 10 having flanges 12 welded together, the spike being welded at 13 inside the lowermost section. The sections may be butt-welded, and clamping bands may be fitted around the joints. The flanges of alternate sections may be disposed at right angles, or the flanges may form a continuous line from end to end of the post.
Patent GB-391329-A (GB)
Title: Improved apparatus for practising golf shots
IPC: A63B69/00
Filed: 1932-06-07
Abstract: 391,329. Golf-practising appliances. STAPLES, A. E., 28, Myers Road West, Great Crosby, near Liverpool. June 7, 1932, No. 16044. [Class 132 (ii).] Golf-practising apparatus comprises a pair of balls carried on the arms of a lever mounted on a spindle to form a balanced rotary system, the spindle having a worm engaging a worm wheel which is arranged to drive through a geared train a pointer round an indicator dial graduated in yards, and means for resetting the pointer to its normal or zero position. As shown in Fig. 4, the apparatus comprises a wooden platform at one end of which is mounted a rotary system of balls comprising two golf balls 3 at the ends of a lever 4 carried on a spindle 5 journalled in bearings 6 secured to a plate 7 fitted in the platform. The spindle 5 is coupled at 10 to a spindle 11 having a worm 12 engaging a worm wheel geared to a spindle which carries a pointer co-operating with a dial graduated in yards. Alternatively the worm wheel may rotate a movable dial past a fixed pointer. Means for returning the pointer to zero comprises a cam 27, Figs. 6 and 9 having a sleeve carrying the pointer. A spring fork 29 is secured at 30 to the cam ii such manner that one arm engages the exterior of sleeve 28 while the other arm presses against the spindle 26 through a slot in the sleeve This constitutes friction drive for the pointer Pivoted at 31 is a lever 32 urged by the spring 33 against a stop 34 to hold the projectior 35 clear of the cam 27. A foot-operated pushbutton 36, Fig. 7, having a coned foot 38 is adapted when depressed against the spring 37 to engage the toe 35 with the cam 27 which is rotated until the toe enters the recess in the cam and brings the pointer to zero. The balls 3 are detachably connected to screwed studs on the ends of the lever 4 by embedded threaded metal ferrules having serrated flanges.
Patent GB-922010-A (GB)
Title: Interconnecting Miniature Circuit Modules
IPC: H05K1/14
Filed: 1960-05-06
Abstract: 922,010. Electrical wiring arrangements. TEXAS INSTRUMENTS Inc. May 6, 1960 [May 6, 1959], No. 16069/60. Class 37. In an assembly of a stack of circuit modules interconnection between the modules is made by a series of electrically conductive sheets, electrically insulated from each other, each of said conductive sheets having a plurality of openings therein through which the plurality of leads of the circuit modules pass and make contact with selected ones of the conductive sheets. The circuit modules 11, with stiffly protruding leads 12, are stacked one on top of the other, electrical connection to the supply voltage being made by sheets 13 comprising a conductive film 25 laminated to an insulating board 15, Fig. 4b, both being provided with slots 14, Fig. 2b (not shown) and signal path connections being made by sheets 16 comprising an insulating board bearing a printed circuit 18 for interconnecting the slots 17. The terminals 12 are passed through the slots 14, 17 of the stacked conductive sheets and soldered to the appropriate conductors, Fig. 4b. Where a large number of signal leads are used which require the conductive elements 18 to cross over one another, one or more additional insulating sheets 16 are used. Separate stacks of modules may be interconnected using the terminal lugs 27 or alternatively larger sheets may be used. Heat is dissipated from the stacks by stacking copper sheets 19 between the modules 11 or the modules may be placed in slots machined into a heatconducting block Fig. 5 (not shown).
Patent GB-366400-A (GB)
Title: Improvements in or relating to cigarette making machines
IPC: A24C5/34
Filed: 1931-06-02
Abstract: 366,400. Weighing-apparatus fitted to cigarette-making machines. UNIVERSELLE CIGARETTENMASCHINEN-FABRIK J. C. MœLLER & CO., 48, Zwickauerstrasse, Dresden, Germany. June 2, 1931, No. 16109. Convention date, June 2, 1930. [Class 143.] Cigarettes for sampling by weighing are removed in groups from a discharge drum 5 by a plate 1 and deposited on a scale pan 6. The plate is mounted on the pivot of a bellcrank lever 9, 9<1> which bears on a revolving cam disc 11 actuated by a ratchet mechanism 12, 13. The pawl 13 is mounted on one arm of a bell-crank lever 14 which is engaged by a cam 16<1> on the discharge drum. When the plate is moved away from the drum the cigarettes are deflected by a plate 7 on to a discharge belt 8.
Patent GB-1128275-A (GB)
Title: Method for the treatment of piperazine and salts thereof
IPC: A61K47/02
Filed: 1967-04-07
Abstract: 1,128,275. Piperazine and derivatives thereof. JEFFERSON CHEMICAL CO. Inc. 7 April, 1967 [8 April, 1966], No. 16163/67. Heading A5B. A free-flowing, particulate composition consists of a major amount of piperazine or a salt thereof (including piperazine hexahydrate and anhydrous and hydrated salts of piperazine with organic and inorganic acids) and a minor amount, preferably 0.001% to 1.0% by weight, of colloidal silica. Piperazine salts specified are the adipate, phosphate, dihydrochloride, citrate, fumarate and tartrate. The composition may be dissolved in water to form a clear solution.
Patent GB-841417-A (GB)
Title: Improvements in or relating to guided tub hoists
IPC: E01C19/10
Filed: 1958-05-20
Abstract: 841,417. Winches; guided skip hoists. WIBAU WESTDEUTSCHE INDUSTRIEUND STRASSENBAU - MASCHINEN G.m.b.H. May 20, 1958 [May 20, 1957], No. 16229/58. Classes 78 (3) and 78 (5). In a guided skip hoist, a motor, which rotates continuously in one direction, effects low-speed raising and high-speed lowering of the skip. As shown, a guided skip 6, for transferring material from a batch mixer 1 to a hopper 4 or to a transport vehicle is driven by a winch, Fig. 2 (not shown), through gearing controlled by a clutch, which, when the skip closes a limit switch 20, disconnects the drive to the winch. After a time delay sufficient to ensure complete discharge of the contents of the mixer 1 into the skip 6 following closure of contacts 21 by opening the discharge gate 2, the clutch causes the winch to effect slow-speed raising of the skip. When the skip operates upper limit switch 22 the clutch is disengaged and after predetermined time, the clutch causes the winch to effect high-speed lowering of the skip. At its upper limit of travel, the skip tips into a discharge position from which a free running descent under gravity is not possible.
Patent GB-879314-A (GB)
Title: Improvements in electrical devices for catching fish
Inventor: KREUTZER CONRADIN OTTO
IPC: A01K79/02
Filed: 1960-05-09
Abstract: 879,314. Fishing apparatus. SMITH RESEARCH & DEVELOPMENT CO. Inc. May 9, 1960, No. 16261/60. Class 48. An electrical circuit for producing current pulses between electrodes B immersed in water comprises one or more capacitors C2, C3 charged by a D.C. generator G and a pair of ignitrons Ig1, Ig2 controlling the charging and discharging of the capacitors. The current pulses are used to stun fish or to direct fish into a net or fish pump. Each capacitor C2, C3 charges to half the voltage of the generator. Ignitron lg1 is then fired and capacitor C2 discharges between the electrode B and at the same time capacitor C3 charges to the full voltage of the generator. When the current has died away the other ignitron Ig2 is fired and capacitor C3 discharges between the electrodes B whilst the other capacitor C2 charges to the full voltage of the generator. The ignitrons are fired alternately by gas discharge tubes (not shown). Capacitor C2 may be omitted. In a further circuit producing unidirectional pulses the electrodes B are connected to the secondary of a transformer having a primary winding with ends connected to the ignitrons and a tapping connected between the two capacitors.
Patent GB-585423-A (GB)
Title: Aqueous dispersions of vinyl acetate polymers
IPC: C08F18/08
Filed: 1944-08-28
Abstract: Vinyl acetate is polymerized in aqueous emulsion at temperatures above 50 DEG  C. in the presence of a polymerization catalyst, a stabilizing agent comprising a refined petroleum hydrocarbon (solid or liquid, boiling above 125 DEG  C.) or an oxidized castor oil, or a mixture of the two and a composite dispersing agent containing a water-soluble sulphate ester of an aliphatic alcohol and a cationic surface-active agent selected from the group of alkyl ammonium and pyridinium halides and alkyl betaines, said alcohol, halides and betaines all having alkyl chains of 12-18 carbon atoms.  Specified petroleum hydrocarbons are refined paraffin wax, petroleum, crude scale wax and white mineral oil.  Suitable sulphate esters are sodium dodecyl sulphate, sodium cetyl sulphate, sodium oleyl sulphate and the water-soluble salts of sulphate oleyl acetate.  Specified surface active agents are cetyl and dodecyl betaines, octadecyl trimethyl ammonium bromide, cetyl ammonium chloride and alkyl pyridinium halides.  Plasticisers may be incorporated in the monomer before polymerization; specified are high-boiling phthalic, lactic, tartaric, glycollic, adipic and phosphoric acid esters, e.g. butyl-phthalyl-butyl glycollate, dibutoxy-ethyl phthalate, dibutyl phthalate, tricresyl phosphate and dimethyl-cyclohexyl adipate. The products are stable aqueous dispersion suitable as finishes for leather, textile and paper.  U.S.A. Specification 2,129,264 is referred to.
Patent GB-855676-A (GB)
Title: Hermetically-sealed plunger-operated electric switch
Inventor: YOUNG ROBERT ERIC
IPC: H01H13/02
Filed: 1958-05-21
Abstract: 855,676. Press-button retractive switches. ARMSTRONG WHITWORTH AIRCRAFT Ltd., Sir W. G. May 21, 1958, No. 16276/58. Class 38 (5). A plunger-operated switch has a flexible sealing - sleeve connected to it at its outer end, the other end of the sleeve being sealed to the switch body, the fixed contact elements being moulded in the body. As shown, the contact posts 11, 12 in body 13 carry contacts 26, 27 arranged to be bridged by a contact 35 carried by the plunger 32 under the action of a spring 25. The lower ends of posts 11 pass through a plastic cover 24 into a terminal chamber 15 having a rubber seal 17 between the wall 13a and a cover 16, the cables entering through rubber grommets 20 in wall 13a. The flexible sealing sleeve 43 is sealed to the plunger at 42 and to a metal end-plate 30 moulded to the body.
Patent GB-492644-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K21/38
Filed: 1937-07-22
Abstract: 492,644. A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. July 22, 1937, No. 16299/38. Convention date, July 22, 1936. Divided out of 490,708. [Class 35] The stator of a synchronous motor comprises permanent magnets and laminated segments each carrying two salient poles arranged alternately, the two poles of a segment being similarly magnetized by the magnets but oppositely by windings energized with alternating current, the windings on adjacent pairs of poles being phase displaced and the teeth on the salient poles not being simultaneously in alignment with the rotor teeth which, however, have the same pitch. In the form shown, the stator has eight toothed salient poles with the windings on poles 1, 2, 5, 6 in series with a condenser 9 and the windings on poles 3, 4, 7, 8 series connected across the supply, and although the teeth on all poles are equally spaced, the teeth on poles not of the same phase and polarity due to their winding are staggered by a fraction of a toothed pitch. The stator has four laminated segments separated by four permanent magnets 30 so arranged that both poles on any one segment are similarly magnetized, but due to the windings the poles on any one segment are oppositely magnetized. The dotted lines 35 indicate the path of the permanent magnet flux. The motor is selfstarting. Specifications 424,746, [Group II], and 490,708 are referred to.
Patent GB-893498-A (GB)
Title: A method of purifying cellulose
IPC: D21C9/08
Filed: 1959-05-12
Abstract: Purified cellulose poor in pentosans and containing over 96% of alpha cellulose is produced from high viscosity cellulose, obtained from wood in a conventional manner with subsequent bleaching, by treating the bleached cellulose with an aqueous solution of hydrochloric acid of 30-35% concentration at room temperature for a sufficient time, e.g. 15-60 minutes, to hydrolyse the non-cellulose carbohydrate constituents thereof to water-soluble sugars, and thereafter separating the aqueous solution of hydrochloric acid and soluble sugars from the cellulose and washing the cellulose.  Cellulose containing between about 96 and 98% of alpha cellulose and less than 0,8% of pentosans may thus be obtained in nearly theoretical yields even from hardwood.  The aqueous solution of hydrochloric acid and sugar may be repeatedly used without modification for further refining and may finally be evaporated under vacuum in a triple effect evaporator, as described in Specification 835,645.  The resultant concentrated sugar solution may be re-hydrolysed, de-ionized and further concentrated to form a water-white syrup. The cellulose may be given a final treatment with a 1-10% solution of an alkali metal hydroxide to effect a further increase in its alpha cellulose content and to improve its vactivity.  In an example, bleached cellulose, obtained from beechwood chips by heating with sulphite cooking acid containing 1% of CaO and 6% of SO2 at a temperature not exceeding 135 DEG C. and bleached by treatment with chlorine, and alkaline intermediate wash and sodium hypochlorite, is washed and treated in a continuous process at 20 DEG C. with 32% hydrochloric acid, the proportion of hydrochloric acid to cellulose being maintained at 30:1 and the contact period not exceeding 15 minutes.  The treated cellulose is washed with water and treated at 20 DEG C. for 30 minutes with an 8% aqueous solution of caustic soda.
Patent GB-299075-A (GB)
Title: Improvements in the treatment of gases with liquids in scrubbing towers
IPC: B01D47/02
Filed: 1927-06-20
Abstract: 299,075. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.).. June 20, 1927. Scrubbers and washers. -A gas washer comprises one or more spiral surfaces arranged within a tower and inclined downwards towards the axis. The surfaces 1, 2, may be curved or not in a radial direction, and subdivided into strips or corrugated; or the surfaces may be subdivided into overlapping sectors, and carry metal strips to divert liquid from the wall of the tower; perforated sectors may be used, and the working temperature may be regulated by means of pipe coils.
Patent GB-682864-A (GB)
Title: Improvements relating to circuits for generating sawtooth waveforms
Inventor: STILLWELL PETER FREDERIC THOMA
IPC: H03K4/90
Filed: 1949-06-21
Abstract: 682,864. Saw-tooth generating circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 24, 1950 [June 21, 1949], No. 16413/49. Class 40 (vi). In a saw-tooth waveform generator of the type in which a capacitor is charged via a resistor from a constant voltage source and periodically rapidly discharged, the linearity of the long flank of the saw-tooth waveform is improved by providing in series with the capacitor and resistor a low impedance voltage source of substantially parabolic waveform. Fig. 1 shows a saw-tooth generator in which capacitor 1 is charged from a source 3 via a resistor 2 and periodically discharged via valve 4 when this valve is rendered conducting by positive-going pulses applied from source 5. The saw-tooth voltage produced across the capacitor which has an exponential curvature to its long flank is integrated by network 8, 9 to produce a low impedance voltage source of voltage (a) across cathode resistor 11. This voltage is thus effectively in series with the voltage across capacitor 1 and thus produces a linear flank to the saw-tooth waveform produced at terminal 13. Fig. 2 shows a modification in which the saw-tooth voltage produced across capacitor 1 is amplified in cathode follower 10 and the voltage produced across resistor 11 is integrated in network 14, 15 so that the parabolic voltage produced across capacitor 14 is effectively in series with the charging voltage source to capacitor 1 and a linear saw-tooth voltage is thus produced. Third order correction may be produced by feeding a voltage to capacitor 1 from the anode of valve 10 via resistor 17.
Patent GB-497227-A (GB)
Title: Improvements in and relating to brake-adjusting apparatus
IPC: B60T17/22
Filed: 1937-06-14
Abstract: 497,227. Hydraulic brakes. TAYLOR, A. G., and JEFFREYS, W. June 14, 1937, Nos. 16423 and 16424. [Class 103 (i)] A device for adjusting and indicating the operation of the wheel brakes of vehicles comprises a cylinder positioned in the length of the brake operating rod or cable so as to be subject to the pressure transmitted by the rod &c., the cylinder being in communication with a pressure indicator and with a device by which the pressure in the cylinder can be regulated. In Figs. 1, 2, the cylinder 7 comprises a pair of pistons the rods 9<1>, 10<1> of which are connected to chains or other flexible members 1, 2. Rods 5, 6 extending respectively to the pedal and to the brake are connected by yokes 3, 4 to the ends of the chains 1, 2. A flexible reservoir disposed between the pistons has tubular extensions extending through the cylinder wall one of which has a filling valve while the other is connected by pipe 12 to the pressure regulator which may be mounted on the dash of the vehicle. This comprises a bellows 17, clamped at its end between the end of the casing 13 and a sleeve 18. Pressure is applied to the bellows by a piston 20 operated by a screw 21. A pressure indicator 25 is connected by pipe 24 to the regulator. When the brake is applied the pressure transmitted by the rods 5, 6 reacts through the chains 1, 2 on the liquid in the cylinder and regulator and if the pressure indicated for a particular brake differs from that for the other brakes, the corresponding regulating device 13 is adjusted. In Fig. 3, the cylinder 30 is arranged to transmit the pressure to the brake, from a lever 36 to a rod 32 extending to the brake. The flexible liquid container 37 is disposed between the end 33 of the cylinder and a piston 35, the piston rod 34 and the cylinder being connected respectively to the lever and to the rod 32. The container 37 has a filling connection 38 and is connected to the pressure regulator by pipe 40. According to the Provisional Specification, the pressure regulator may be of the construction described in Specification 497,228.
Patent GB-204368-A (GB)
Title: Improvement in sound boxes of gramophones
IPC: H04R7/00
Filed: 1923-03-14
Abstract: 204,368. Rice, A. J., and Brown, J. R. March 14, 1923. Sound-box cases.- In a. sound-box as claimed in Specification 198,518, a sheet a of rubber or the like is provided to cover the inner surface of the back plate b of the casing. The sheet a, which has a central hole d coinciding with the sound outlet, has its edge clamped between the back plate and the body c of the casing.