baber/WOPTO huggingface dataset:
Patent GB-770689-A (GB)
Title: Electric spark ignition apparatus for prime movers
Inventor: JUKES NORMAN ALFRED
IPC: F02P13/00
Filed: 1954-10-08
Abstract: 770,689. Ignition apparatus LUCAS (INDUSTRIES), Ltd. J. Sent. 27, 1955 [Oct. 8, 1954], No. 29030/54. Class 7 (4). [Also in Group XL (a) ] In an electrical ignition apparatus having a main condenser mc, Fig. 3, to be intermittently charged from an energy source, not shown, an inductance h and a control gap cg in series with each other and the main condenser and an auxiliary condenser ac connected across the control gap and at least a part of the inductance, and a spark at a sparking plug sp being obtained by discharge of the main condenser through the control gap and inductance, and comprising the combination of a cylindrical outer metal shell a, Fig. 1, which serves as one of the main condenser plates a hollow body part c of electrical insulating material within the shell serving as the dielectric of the main condenser, a metal lining d on the part c serving as the other main condenser plate, a hollow core g, g' of insulating material in which is arranged the auxiliary condenser, the inductance wound around the core and the control gap, the electrodes p, q and r of which are carried by the core, the latter carries input and output terminals m, o respectively the output terminal being adapted for attachment to the outer end of the sparking plug central electrode. To one end of the insulator c is fixed a cap e that carries an input connection whilst the inductance h is insulated from the plate d by a nylon sleeve i; the auxiliary condenser comprises a ceramic disc j with a metallic coating deposited on its opposite faces against which latter abut contacts k, n respectively. The contact n is connected to the coaxial resilient metal terminal o whilst contact k is carried by the input terminal m in abutment with a radio interference suppressing resistance w which is joined to the connections f by a spring x and a metal strip y. The annular control gap electrodes p, q and r are arranged as two concentric annular gaps on the insulator g'; the electrode q is connected to one end of the inductance h via a metal sleeve s whilst the end of the inductance is joined to the contact n through a metal strip t. The control gap may be ventilated to atmosphere by a passage v in the cap e. In a modification, the contact n and sleeve o are separate and insulated from each, and one end of the inductor h is connected to the sleeve o by the strip t and an intermediate point of the inductance is joined to the contact n by a wire or another metal strip.
Patent GB-902650-A (GB)
Title: Improvements in manhole or like covers and frames
IPC: E02D29/14
Filed: 1960-08-22
Abstract: 902,650. Manhole frames and covers. BROADS MANUFACTURING CO. Ltd., and ROBINSON, G. April 7, 1961 [Aug. 22, 1960], No. 29034/60. Class 107. A manhole cover 36 has corrugated sides 6 nesting in complementary frame members 2, the upper portions 8 and 3 of the sides 6 and members 2 respectively being substantially vertical. A lifting key may be inserted in a boss 10 on opposite sides of the cover through a slot 15 in a screw cap 14 and, when turned, bears against a member 13. A locking bolt (not shown) may be passed through an aperture 16 in the cover 36 to engage in a nut 17 welded to a bracket 18 secured to the frame. An anchor plate 4 is welded to each comer of the frame. In another embodiment only two opposite sides of the frame and cover are corrugated, and a shape other than rectangular may be used. Specification 606,014 is referred to.
Patent GB-323562-A (GB)
Title: Improvements in or relating to furnaces
IPC: F23M9/00
Filed: 1928-10-09
Abstract: 323,562. Hayashida, Y. Oct. 9, 1928. Baffles.-A baffle for the flues of Cornish and like boilers comprises two or more circular dished plates e provided with central and peripheral apertures e<1>, e<2>, and secured together by bolts f in such a manner that the peripheral apertures e<2> of adjacent plates are located at opposite sides. of the furnace flue b. Behind the last plate e there may be provided an additional plate having a central aperture only. Fig. 3 shows a modification in which the plates e are provided with curved ribs e<3> arranged around the central aperture e<1>.
Patent GB-142052-A (GB)
Title: Improvements in exercising apparatus
IPC: A61H35/00
Filed: 1919-11-24
Abstract: 142,052. Cooper, J. J. Nov. 24, 1919. Vapour baths.-A cabinet 10 is fitted with exercising apparatus 11. When the top hinged frame 60 is raised the rear doors 27 are opened automatically by levers 161 and rods 164 to enable the user to enter or leave the cabinet. A vessel 125 contains liquid, which is heated by an electric heater 120 provided with a controlling device 115. The user can reach the controller 115 by putting his hand through a hole in the usual fabric neck-piece 90. The cabinet 10 is made in sections held together by battens 40 so that it can be dismantled and packed for transit.
Patent GB-858948-A (GB)
Title: Improvements in liquid spray nozzles
Inventor: BATTMAN BARRINGTON NEWMAN
IPC: B05B9/03
Filed: 1957-09-17
Abstract: 858,948. Fuel atomisers. DOWTY FUEL SYSTEMS Ltd. Sept. 17,1958 [Sept. 17, 1957], No. 29273/57. Class 75(1). [Also in Group XXIX] A nozzle 2 to which liquid fuel is fed from a main fuel supply connection 14 to a swirl chamber 11 adjacent a spray outlet orifice 12, has an augmented fuel supply connection 15 which leads to a supply passage 16 axially feeding the chamber, and a pressure-sensitive valve 1 connects the main supply to the augmenting supply when the pressure of the former exceeds a predetermined value. Thus an augmenting flow at reduced pressure enters the swirl chamber axially and is swirled by the swirling fuel in the chamber, and the total flow leaves the outlet orifice as a conical spray. The main supply is fed to the valve at 34 and when the supply pressure is below a predetermined value the whole flow passes from an outlet 35 and through a line 37 to the connection 14 ; when the predetermined pressure is exceeded a valve member 28 is forced upwardly against a spring 29, and some of the supply fuel flows through a bore 31 at a reduced pressure to an outlet 36 and through a line 38 to the connection 15. From the connection 14 fuel flows between the parts 3 and 6 to slots leading tangentially into the swirl chamber 11 in a disc 9. As shown, the valve is used to feed a number of such nozzles.
Patent GB-1114151-A (GB)
Title: Fibre assemblies
Inventor: BAXTER SAMUEL
IPC: D02G3/06
Filed: 1964-07-17
Abstract: A fibrous fabric e.g. wadding or "non-woven" fabric in tape, ribbon, webbing or cloth width form, is produced by continuously drawing (2 : 1 - 20 : 1) an extruded, if necessary heated or reheated, foamed thermoplastic material so that it becomes orientated essentially in one direction, and immediately or subsequently, rubbing, rolling, beating, twisting or shaking the material so that the walls of the foam structure are partly disintegrated and then converted into a three-dimensional structure of interconnected elements 5-70% of which are irregularly and differently branched in cross-section.  The distance between points of interconnection may be 5-1000 times the average thickness of the elements.  The fabric may be "teazed" e.g. by corrugated rollers or air jets, to render it more voluminous, and/or reinforced by lamination or by means of other fibres or fabrics and/or by impregnation with a binding agent.  The thermoplastic material may be acrylonitrile or methacrylonitrile; vinyl or vinylidene chloride; a vinyl ester such as vinyl acetate; an acrylate ester such as ethyl acrylate or methyl methacrylate; a mono-olefin, a diene, or a vinyl-substituted benzene, for instance ethylene, propylene, a butylene, a pentene or a hexene; butadiene; polyethylene, polypropylene, or polystyrene; a vinyl halide such as vinyl chloride or vinyl bromide; vinylpyrollidone and a vinylpyridine such as menthylvinylpyridine; ethylene-propylene or styrene-butadiene copolymer; ethylene-vinyl acetate copolymer; a copolymer derived from dissimilar monomers such as acrylonitrile with a minor proportion of vinyl acetate and polyvinyl chloride; a mixture of an acrylonitrile-vinyl acetate copolymer and a copolymer of acrlonitrile with methylvinylpyridine; natural or synthetic rubber; polyamide; polyurethane; polylactum; polyester such as polyethylene terephthalate; viscose rayon; cellulose acetate or triacetate; mixtures of the preceding materials.  The blowing agent, in a proportion of 3-30% by weight based on the weight of the thermoplastic material may be a volatile substance that is a gas or vapour under normal atmospheric conditions but which while under pressure before extrusion will be present in solution in the molten or semi-molten material, or it may be one (such as pentane or a pentane fraction) which is a volatile liquid under normal conditions. Examples include methane, ethane, ethylene, propane or butane; methyl chloride, trichloromethane or 1, 2-dichlorotetrafluoroethane; acetone, carbon dioxide or nitrogen; sodium or ammonium bicarbonate; dinitrosopentamethylenediamine or barium azodicarboxylate.  The blowing agent may be employed in conjunction with, up to 5% by weight of the thermoplastic material of, a nucleating agent e.g. silica or alumina, perhaps in conjunction with zinc stearate, sodium bicarbonate perhaps in conjunction with tartaric or citric acid.
Patent GB-1223419-A (GB)
Title: Control systems for machine tools
Inventor: MARKGRAF ZSIGMOND
IPC: G05B19/04
Filed: 1967-06-26
Abstract: 1,223,419. Plug board control of machine tools. WICKMAN MACHINE TOOL SALES Ltd. 13 June, 1968 [26 June, 1967], No. 29336/67. Heading B3B. A plug board control system for a machine tool such as a lathe comprises a plug board having columns 1 and 2 having plug sockets P 1 /1 ... P 11 /1 and P 1 /2 ... P 11 /2, respectively, some or all the sockets in each column being grouped together, each group being arranged for the control of a particular part of the lathe, e.g. the spindle 10, carriage 11 or cross-slide 12. The insertion of plugs in selected sockets in each group determines the nature of movement of the machine part. Selector switches US1, US2 are operable to co-operate with the plug sockets of the respective groups and serve to complete the electric circuit when in co-operation with a plug in a given socket, the movement of the selector switch being terminated when it reaches a socket containing a plug but is reactuated by a signal when that stage in the operation of the machine part has been completed. The signal is provided by the actuation of a micro-switch positioned on a part of the machine and operable when two relatively movable parts of the machine attain a predetermined position with respect to each other. A further selector switch is provided for selecting the required column of socket groups. An electrical control circuit is described with reference to Fig, 4 (not shown).
Patent GB-632937-A (GB)
Title: Improvements in or relating to a machine for uniformly tightening valve stem parts on tire tubes
IPC: B29D23/24
Filed: 1946-10-03
Abstract: 632,937. Screwing-up nuts &c. BRIDGEPORT BRASS CO. Oct. 3, 1946, No. 29490. Convention date, Feb. 19, 1943. [Class 83 (iii)] [Also in Group XXIX] A machine for screwing up valve stem parts on a tyre tube comprises a wrench adapted to act on one of the valve stem parts, a table member for supporting the tyre tube, a clamping member movable with respect to the table member for maintaining the tyre tube and another of the valve stem parts stationary during the screwing-up action, means to operate the wrench and means to control the wrenchoperating means to effect a uniform screwing- up action. As shown in Fig. 3, the tyre tube 6 and detachable valve base member 2 are supported on a resiliently-mounted table 30 and the valve stem member 1 is mounted within the upper end of a rotatable hollow spindle 35 on which is resiliently carried a wrench 39 which engages a nut 7 on the member 1. A clamping member 25 is secured to a rod 13 which has a cam follower 22 movable in a cam slot 21 in a tubular guide member 12 so as to rotate the member 25 when the rod 13 is reciprocated by means of a pedal-operated lever. When the member 25 is moved so as to clamp the tyre tube on to the table 30 a trip member 143 operates a trip lever 99 to close a switch 73, Fig. 6, to cause the solenoid 76 of a three-way valve 71 to be energized and allow the flow of air or other pressure fluid through an inlet A to a pressure cylinder 52 so as to actuate a rack 48 which is engaged by a pinion 45 on the spindle 35. When the required torque has been exerted, the pressure of the fluid closes an adjustable pressure switch 72 and energizes a solenoid 74 so as to open the switch 73 and de-energize the solenoid 76 with consequent closing of the inlet A. A spring 56 then returns the movable parts associated with the spindle 35 to their original position. A signal is actuated if the valve stem parts are not screwed up sufficiently. In a modified construction for operating on valve stems equipped with bridge washers, the machine is provided with additional means for positioning the bridge washer correctly with respect to the tyre tube after the required screwing-up torque has been applied.
Patent GB-1517694-A (GB)
Title: Methods and applications of preparative scale chromatography
IPC: C07C17/087
Filed: 1974-07-03
Abstract: 1517694 Displacement chromatography NATIONAL RESEARCH DEVELOPMENT CORP 19 June 1975 [3 July 1974] 29491/74 Heading B1H [Also in Division C2] In preparative-scale chromatography a mixture is chromatographically fractionated on a sorbent material by the displacing action of a sorbate which is thermally displaced through the material by a heated zone advancing through the material to leave behind sorbent material substantially free of said sorbate. The process may be operated continuously with a continuous loop of column and a relatively moving heat source or sources. The column may be of stainless steel; numerous packings are specified. Examples relate to the separation of hydrocarbons and to the catalytic conversion of trichloroethane to dichloroethylene on the column followed by separation of three isomeric dichloroethylenes.
Patent GB-1247590-A (GB)
Title: Method and apparatus for the purification of heavy water
Inventor: DIRIAN GREGOIRE
IPC: B01D59/26
Filed: 1969-06-11
Abstract: 1,247,590. Purification of heavy water. COMMISSARIAT A L'ENERGIE ATOMIQUE. 11 June, 1969 [21 June, 1968], No. 29547/69. Heading C1A. [Also in Divisions B1 and G6] The hydrogen and tritium content of heavy water is reduced by diverting a continuous flow of heavy water from a reactor to an isotopic exchange reaction with deuterium, passing the contaminated deuterium to a chromatographic fractionation whereby hydrogen and tritium are separated leaving pure deuterium which is recycled to the isotopic exchange reaction. Solid catalysts such as Pt or Pd on inert supports, iron oxide or Ni deposited on chromium oxide can be used to initiate the exchange reaction or alternatively thermal activation may be used, the exchange temperature being preferably 80-400 C. in the former case and 800-1200 C. in the latter. The fractionation may be performed in a moving solid or static solid column. In the former embodiment the impure D 2  enters the column at an intermediate point tritium rich D 2  leaving the top of the column and hydrogen rich D 2  leaving the bottom of the column. The solid absorbent is heated as it leaves the bottom of the column, freeing the absorbed gases which then pass up the column, the solid being recycled to the top of the column. Alternatively (see Fig. 3) the impure D 2  enters column 17 at 23. Tritium rich D 2  leaves via 24. The hydrogen rich D 2  passes via 25 to a second column 18 from which pure D 2  leaves via 27, hydrogen rich D 2  being removed at 26. This arrangement may be reversed, i.e. hydrogen rich D 2  may be separated in a first stage. The separating solid is preferably palladium based. The hydrogen rich D 2  may, by methods known per se, be subjected to isotopic enrichment to recover part of the heavy water. The tritium rich D 2  may similarly be treated to recover the tritium.
Patent GB-816816-A (GB)
Title: Production of acetylene by pyrolysis
IPC: C07C2/76
Filed: 1957-09-19
Abstract: In the pyrolysis of methane to acetylene, the feed material is passed through a reaction zone heated to pyrolysis temperature and the soft carbon removed from the reaction zone after not more than 5 seconds of pyrolysis.  The soft carbon is light and burns with a visible flame and this material is detrimental to the production of acetylene.  The hard carbon burns very slowly even at high temperatures and does not affect the acetylene yield.  In a preferred embodiment, a reactor made of pure aluminium oxide 20 inches long and 7/64 inch internal diameter was heated to temperatures from 1460 DEG to 1630 DEG  C. and a feed gas comprising 95.0 per cent methane, 2.94 per cent nitrogen, and 1.29 per cent ethane was passed through for a period of about 1.5 seconds.  The feed was then stopped and air introduced into the tube at a rate of about 5 times the flow of the feed of the gases for about 2 seconds causing the soft carbon to burn off.  The tube was then reheated to the initial temperature by means of a resistance ribbon and the feed again passed after 5-10 seconds. The product contained 4-11 per cent of acetylene.  Pressures of 0.5 to 1.5 atmospheres may be utilized.
Patent GB-248827-A (GB)
Title: Improvements in biscuit making machines
IPC: A21C11/08
Filed: 1924-12-10
Abstract: 248,827. Vicars, E. L. Dec. 10, 1924. Rolling-machines ; sheet-cutting machines.- Pats of dough for biscuit making are sucked out of cavities in a drum 3 by a stationary suction box 7 on to a reticulated or foraminous coveyer 6. They are loosened from the conveyer by air from a pressure box 8.
Patent GB-910456-A (GB)
Title: Therapeutic compositions comprising a penicillin antibiotic and sulphonamides
IPC: A61K31/43
Filed: 1961-08-17
Abstract: Orally administrable compositions for the treatment of bacterial infections comprise per unit dose from 120 to 280 mgm. of potassium phenoxyethyl penicillin and from 130 to 200 mgm of each of sulphadiazine, sulphamerazine and sulphamethazine.  They may be in forms such as a tablet or flavoured aqueous suspension which may optionally also comprise tetracycline, bismuth subcarbonate and pyridium in addition to conventional pharmaceutical excipients.
Patent GB-353780-A (GB)
Title: Improvements in wearing apparel
IPC: A41D13/06
Filed: 1930-10-04
Abstract: 353,780. Wearing - apparel. MARQUIS, C. O. (trading as BRASH & CO.), 25, Jamaica Street, Glasgow. Oct. 4, 1930, No. 29689. [Class 141.] Aprons, dresses, and other like garments covering the knees are provided with pads for kneeling on, the pads being placed in pockets d at the knee level. The pockets may be as indicated in the drawing, wider at the bottom than at the top, so that after inserting the pads by bending them, they remain in place in the pocket.
Patent GB-813609-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J9/04
Filed: 1956-09-28
Abstract: 813,609. Cathode materials and processing. M.-O. VALVE CO. Ltd., and JENKINS, R. O. Sept. 30, 1957 [Sept. 28, 1956], No. 29764/56. Class 39(1) A thermionic valve cathode has an emissive portion 8 consisting of a powdered pressed mixture of alkaline earth metal carbonates and nickel and/or cobalt, backed by an appreciably thicker layer 9 of nickel and/or cobalt, at least the said layer fitting tightly within a shell 1 having apertures or depressions 5, into which apertures the layer 9 is keyed at its periphery. The emissive portion 8 may be a mixture of 70 per cent by weight carbonyl nickel powder, and the remainder mixed carbonates in the molecular proportions 49À5 per cent. Ba, 43À5 per cent. Sr, and 7 per cent Ca. The powders may be compacted inside the sleeve 1 in a die 3, as shown. After the cathode is assembled inside the valve, it is heated to sinter the layers 8 and 9, at the same time activating the emissive material. The nickel layer 8 contains a small proportion of zirconium hydride as a reducing agent, but according to the Provisional Specification this additive is silicon. The nickel in either or both layers 8, 9 may be wholly or partly replaced by cobalt. The sleeve 1 may be of nickel, cobalt, or platinum.
Patent GB-1070996-A (GB)
Title: Improvements in pillow and pillow case
IPC: A47G9/00
Filed: 1965-07-14
Abstract: 1,070,996. Pillows. M. ROSS-RUSSELL. July 26, 1965 [July 14, 1965], No. 29786/65. Heading A4M. A mitre shaped pillow tapers in thickness from base to apex and has pockets to receive herbs or other aromatic material. The filling of the pillow may be foam rubber, plastic, inflatable or of other conventional material.
Patent GB-442908-A (GB)
Title: Improvements in guards for machines having rotating tools
IPC: B23Q11/08
Filed: 1934-10-18
Abstract: 442,908. Machinery guards. BROUGHTON, G. J., Security Works, Vere Street, Birmingham. Oct. 18, 1934, No. 29798. [Class 80 (iv)] In guards of the type shown for milling and other rotary cutters an inner flanged gridlike member 13 is secured to an outer similar member 12 by means of wing nuts 22 and bolts 19, which bolts pass through slots 17, 20 in the flanges of the member 12. Relative sliding and pivotal adjustments of the two members may therefore be made. The outer member is pivotally secured to a bracket 7 by a bolt 11.
Patent GB-243747-A (GB)
Title: Improvements in pneumatic tyres for power-driven vehicles or the like
IPC: B60C5/10
Filed: 1925-11-26
Abstract: 243,747. Nadel, S. Nov. 26, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Non-metallic elastic bodies and cores. - A series of hollow bodies 1 is fitted with an ordinary tyre cover 2, compression being set up by drawing together the rim parts 3, 4. In the form shown, the rim part 4 is adapted to slide on the stepped seat of the other rim part, being secured by screws 6 movable along the slots 5. In a modification, the two rim parts are formed with radial flanges adjustably connected by transverse bolts. In a further modification (not shown) the edges of the cover may be fitted to rings adapted to be mounted on a detachable rim. The chambers 1 are preferably of the tapered cross-section shown in full lines in Fig. 1, and do not reach the rim until compressed.