baber/WOPTO huggingface dataset:
Patent GB-902492-A (GB)
Title: Improvements in indexing mechanism for machine tools
IPC: F16H57/021
Filed: 1960-06-24
Abstract: 902,492. Machine-tool details. LAPOINTE MACHINE TOOL CO. Ltd. June 24, 1960 [Sept. 15, 1959], No. 22189/60. Class 83 (3). [Also in Group XXIV] In a drill press or other machine-tool having an indexing means for a rotary work-table 26 comprising a worm 40 meshing a worm-wheel 30 bolted to a table support 16, means associated with the support radially adjusts the wormwheel relatively to the rotational axis of the table so that the entire worm-wheel pitch circle is substantially uniformly tangent to the worm pitch line. As shown, the table 26 and support 16 are mounted on a stationary centre post 14 by a ball-bearing 52, the outer race of which engages a recess 55 in the table and a ring 56 in a recess 48 in the support. Radial adjustment is effected by conical plugs 60, preferably screwed, axially adjusted between the support 16 and the ring 56. The support is peripherally carried by a ball-thrust bearing 24. In Figs. 7, 8 (not shown), radial adjustment is effected by arcuate wedges screw-adjusted between a taper recess in the support and a ring engaging the table and the outer race of a taper-roller bearing. In Fig. 5 (not shown), the support, which is directly journalled on a hollow centre post, has tapered openings parallel to its axis and disposed adjacent its periphery and inwardly of the worm-wheel. Radial adjustment is effected by driving tapered plugs into the tapered openings, thereby deforming the support periphery and radially displacing the worm-wheel.
Patent GB-640574-A (GB)
Title: Improvements in the front wheel suspension systems of bicycles or tricycles
IPC: B62K25/16
Filed: 1948-08-11
Abstract: 640,574. Cycle wheel spring suspensions. WILLIAMS, J. C., and FITCH, C. E. H. (trading as MERLIN SALES CO.), and LEIGH, R. Aug. 11, 1948, No. 22301/47. [Class 136 (iii)] In a front wheel suspension system for bicycles or tricycles of the kind incorporating a system of springs for absorbing road shocks, preloaded coiled suspension springs are used. As shown, a pair of levers 1 cranked at 2 so that they lie inside the wheel forks 3 are formed at their front ends with slots 4 for the reception of the frame wheel spindle 5. The levers are pivotally mounted on the wheel forks by means of a flat headed bolt 6, fibre or other friction washers 7 being interposed between the bolt head and the lever. Preloaded coiled suspension springs 9 are attached to the lever 1 by means of slots 8 and anchored to the wheel forks by clips 10 which are prevented from sliding down the forks under tension of the spring by struts 12 slotted at 13 to engage the bolt 6 and at 14 to engage a screw 15 securing the clip 10. Two or more slots 14 may be provided so that the effective length of the struts may be adjusted for increasing or decreasing the tension in the springs. Each lever is provided with a trunnion-like stop 11 engaging the adjacent part of the wheel forks to limit upward movement of the forks relative to the front wheel.
Patent GB-1114716-A (GB)
Title: Column for distillation and other processing operations
IPC: B01D3/16
Filed: 1965-05-26
Abstract: 1,114,716. Distillation and like columns. CELANESE CORPORATION. 26 May, 1965 [28 May, 1964], No. 22339/65. Heading B1R. [Also in Division F4] A column such as one in which a liquid is contacted with a vapour has vertically spaced horizontal trays across which a liquid can flow in contact with a vapour rising through slots in the trays, each tray being formed of two plates welded together at a series of spaced parallel areas in which rows of slots such as 44 are formed, the unwelded areas being expanded to form channels 42 between the plates and through which a heat exchange fluid can be passed from a common feed header to a common discharge header. In a modification the unwelded areas of only one plate is expanded to form semi-circular channels between the plates.
Patent GB-403338-A (GB)
Title: Improvements relating to the crank chambers of internal combustion engines
IPC: F16C3/06
Filed: 1933-08-10
Abstract: 403,338. Crank chambers. SCHRIEL, P. C., and BEIJERMAN, J. J. H., (trading as BILTHOVENSCHE METAAL INDUSTRIE), 22A Rembrandtlaan, Bilthoven, Holland. Aug. 10, 1933, No. 22406. Convention date, Aug. 10, 1932. [Class 7 (ii).] Screwed covers 4 are used for the opening through which the crank-shaft is introduced and also for that in the base provided for the passage of the piston 3, the cylinder and crank-chamber being otherwise in one piece. A shoulder 30 is provided against which the ball-bearing 7 abuts, the opening left by the shoulder being adequate for the passage of the gear wheel 12. The cover 18 supporting the bearing 17 for the shaft having the driving pulley and valve actuating cam may also be threaded into the casing wall. The crankchamber is formed with a bracket which, in conjunction with a cap, serves for clamping the engine to the inclined tube of a cycle frame.
Patent GB-692941-A (GB)
Title: Improvements in or relating to metal floors
Inventor: ATTKINS ROY
IPC: E04F15/06
Filed: 1950-09-12
Abstract: 692,941. Metal floors. IMPERIAL CHEMICAL INDUSTRIES Ltd. Sept. 5, 1951 [Sept. 12, 1950], No. 22407/50. Addition to 662,763. Class 20(iv) [Also in Group XXXII] The side of each floor section 11 adjacent a locking section 14 of the metal floor according to the parent Specification has a re-entrant groove, the sides of the locking sections being correspondingly shaped to mate with the floor sections and prevent relative movement in a plane normal to the floor surface. As shown, the inwardly tapered sides 18 of the locking strip mate with recesses 19 of the adjacent floor sections; tongue and groove &c. connections may also be utilized.
Patent GB-693230-A (GB)
Title: Toilet accessories
IPC: A45D27/24
Filed: 1950-09-12
Abstract: 693,230. Blunting razor blades. ESCOMBE, G. G. Dec. 12, 1951 [Sept. 12, 1950], No. 22416/50. Class 60. A device for blunting the cutting edges of razor blades before they are discarded comprises blunting material 2 having a covering 1 formed with one or more slots 3 which serve to guide a blade for reciprocation while in contact with the blunting material. The edges of the covering are burred over as at 4 to hold the abrasive material which may be carborundum, hard stone or metal. The device may form part of a container for razor blades or be provided with a compartment to store the blunted blades.
Patent GB-583661-A (GB)
Title: Improvements in or relating to hot water bottles
IPC: A61F7/08
Filed: 1944-11-14
Abstract: 583,661. Hot-water bottles. COW & CO., Ltd., P. B., and HUIZINGA, W. A. Nov. 14, 1944, No. 22467. [Class 64 (ii)] A substantially rectangular rubber &c. hotwater bottle is provided at one corner with a neck 1 Which is arranged so as not to project beyond the general outline or peripheral edge of the bottle, the filling orifice 2 in the neck communicating with the interior of the bottle below the top thereof so that it is impossible completely to fill said bottle. A handle, not shown, may be provided, recessed within the rectangular shape of the bottle so as not to extend above the top thereof.
Patent GB-237457-A (GB)
Title: The manufacture of colour lakes
IPC: C09B63/00
Filed: 1924-09-23
Abstract: Lakes are prepared by treating unsulphonated aminooxyanthraquinones or their alkyl, aryl or nuclear substituted derivatives in a fine state of division with a compound of a lake-forming metal.  In an example, a blue lake is formed by stirring and boiling a 10-per-cent paste of N-methyldiaminoanthrarufin with aluminium hydrate.  The Specification further indicates the colours of the alumina lakes of 1,4-aminooxyanthraquinone, 1-amino-2-brom-4-oxyanthraquinone, 1-p-tolylamino-4-oxyanthraquinone, and diaminochrysazin. Specification 211,720, [Class 15 (ii), Dyeing, Processes &c. for], is referred to.
Patent GB-260715-A (GB)
Title: Improvements in cultivators
IPC: A01B39/00
Filed: 1925-09-09
Abstract: 260,715. McLaren, H. Sept. 9, 1925. Power cultivation; reversing at headlands; travelling gear. - In cultivators adapted to be hauled to and fro between rows of plants by ropes extending from engines at the headlands, an arcshaped guide is disposed around each of the side wheels to engage the ropes and prevent injury of the plants while the cultivator is being turned, and supplementary wheels or skids are provided to support the implement while the ordinary wheels pass over ditches &c. The guides 5, 6 are struck from centres in vertical lines passing through the centres of the side wheels 2, 3. They are of such a radius as to bring the tail rope centrally between two rows of plants 10. The hauling-rope 7 and tail-rope 8 are both connected to the cultivator 1 at a point 9 on the central longitudinal axis near where the guides 5, 6 approach one another. The connection may be made through the usual lifting-levers. The side wheels 2, 3 may be provided with means for preventing backward rotation as described in Specification 249,644. At the headland the steering wheel 4 is turned tangential to a circle concentric with the guide 5 in use, so that when the pull comes on the rope 8 the cultivator swings round the wheel 2 and the rope 7 laps round the guide 6, without lateral movement of the rope 8. Three supplementary wheels or skids 12, 13, 14 are provided. Normally they are clear of the ground.
Patent GB-1176706-A (GB)
Title: Treatment of Liquids
IPC: B01J41/04
Filed: 1967-05-16
Abstract: 1,176,706. Porous anion exchange resin particles. ROHM & HAAS CO. 16 May, 1967 [1 Aug., 1966], No. 22599/67. Headings C3C and C3P. [Also in Division C1] An anion exchange resin particle has a macroreticular structure and has an average pore diameter of 10,000-500,000 Š and is used to remove colloids from a liquid. The resin may be prepared by copolymerizing styrene and divinyl benzene in the presence of an aqueous mixture of a dispersing agent (ammonium salt of styrene maleic anhydride copolymer), gelatine, tert.-amyl alcohol and azo-bis-isobutyronitrile; the polymer in the form of beads are screened (20-70 mesh, U.S. standard) and chloromethylated and aminated: the pore size of the product ranged from 30,000 to 200,000 Š.
Patent GB-791695-A (GB)
Title: Improvements in or relating to inflatable huts
Inventor: WYLLIE STUART SPENCER
IPC: E04H15/20
Filed: 1955-08-05
Abstract: 791,695. Inflatable tent huts. ELLIOT EQUIPMENT, Ltd. Sept. 18, 1956 [Aug. 5, 1955], No. 22638/55. Class 20(1) An inflatable hut comprises a number of inflatable tubular arches 1 spaced by a connecting tubular ridge 5 and by longitudinal ground tubes 7 at each side supporting a weather cover 12. The tubes 7 may be connected by tapes 36 to prevent spreading. Smaller tubular arches on uprights 3, 4 are provided as entrances at each end. All the tubes can be inflated through an inflatable sleeve 8 closed by a captive cap 9 but the tubes may be subdivided with separate inflation means. The structure may also include inflatable purlins 6. The tubes are of large cross section about 1 ft. diameter to allow of low inflation pressure e.g. 0.25 Ibs. per sq. inch. The cover which includes windows 15 is split at the ends to form an entrance closed by a sliding fastener or held back by tapes 13. Hold down flaps (38, Fig. 3, not shown) may be provided for pickets. The window comprises a flexible transparent sheet 18 which may be rolled up when freed from the cord 27 in an eyelet 26 when a toggle grip 29 is passed back through the end loop of the cord 27. Above each window is a ventilator. A ground sheet 34 is connected as in Fig. 8.
Patent GB-850761-A (GB)
Title: Improvements in and relating to the purification of gas mixtures
Inventor: CHALLIS ANTHONY ARTHUR LEONARD
IPC: C07C7/167
Filed: 1958-07-16
Abstract: Propylene containing methylacetylene and possibly allene and/or vinylacetylene is purified by hydrogenation by contacting a liquid propylene containing a minor proportion of methylacetylene with a hydrogen-nitrogen mixture of predetermined composition at a desired pressure to dissolve an amount of hydrogen suitable for the hydrogenation, vaporising the resultant liquid to obtain a mixture of hydrogen and hydrocarbon and passing this over a hydrogenation catalyst at a suitable temperature.  The amount of hydrogen dissolved may be about 1 mol. per mol. of propylene and the gas mixture may contain by volume 95% nitrogen and 5% hydrogen at a pressure of 250 p.s.i.  The propylene-hydrogen mixture is passed over a catalyst containing 0,01-0,1% of a Group VIII metal, e.g. palladium, on gamma-alumina preferably also containing 1% sodium as the oxide, at 100 DEG -120 DEG C. and a space velocity of p  500-1500 litres of gas mixture per litre of catalyst-filled space per hour.
Patent GB-608763-A (GB)
Title: Improvements in or relating to electronic pulse counting arrangements
IPC: H03K23/82
Filed: 1945-09-05
Abstract: 608,763. Counting-apparatus. HADFIELD, B. M. Sept. 5, 1945, No. 22821. [Class 106 (i)] [Also in Group XL (c)] An electronic pulse counting arrangement employs a series of valve circuits operating as scale-of-two counters, counting on a decimal system being effected by feeding a signal from the units group to the tens group which also controls the units group. Each valve circuit has two stable states, input pulses being directed alternately to reverse the states by rectifiers, the bias of which is controlled by the state of the circuit. The valve VI, Fig. 5, connected as described in Specification 598,386, [Group XL], to operate in one of two stable states, is reversed by the application of a positive pulse by the operation of switch X1. Assuming the valve V1 to be passing heavy screen current, the anode current is cut off since the cathode is positive with respect to the suppressor grid. Due to the high cathode potential, the rectifier MR2 is biassed more than rectifier MR1 so that the positive pulse is effective to raise the suppressor grid potential, thus allowing anode current to flow and the anode potential to fall, the control grid being driven negative due to the connection over resistor R16. The valve V1 passes to the other state with a lower cathode current, the bias on rectifier MR2 being less than on MR1 so that the succeeding positive pulse drives the valve back to its initial state. The circuit R5, C2 provides a delay in the variation of the bias on rectifier MR2. Where the circuit is to be operated by negative pulses, Fig. 6 (not shown), the rectifiers may be connected to shunt the biassing potentials. The single valve may be replaced by a multivibrator circuit, Fig. 8 (not shown). Pulse counter, Fig. 9. A series of the trigger circuits may be employed operating as scale-oftwo counters, anode current meters M1, M2, M4 and M8 indicating the number of pulses received. In order to count in decades, the screen grids of the valves in the two and eight counters are connected to a rectifier resistor network MR11, R52, R53, resistor R52 being much greater than R53. The decrease in screen current with either valve is insufficient to vary the potential, but when both decrease on the receipt of the tenth pulse the potential rises, feeding a pulse to the tens denomination and over a smoothing circuit Sc and rectifiers MR12, MR14 restores the two and eight counters, a third connection over rectifier MR13 preventing the four counter from operating. The restoring circuits may be fed from the first counter in the tens denomination as shown by the dotted connection. A single meter fed with currents from each valve may indicate the number of pulses received. The counter may be reset by temporarily disconnecting all resistors such as R41 from the H.T. supply. The counter may be arranged to give a backward count by the use of meters in the screen leads or by retaining the anode current meters and feeding each counter from the screen of the previous counter, Fig. 10 (not shown).
Patent GB-885750-A (GB)
Title: Film-forming copolymers
Inventor: GERLICH HANS
IPC: C08F22/00
Filed: 1959-07-03
Abstract: The invention comprises a film-forming copolymer of (a) at least one vinyl compound, (b) at least one maleic acid half ester and (c) at least one maleic acid half-amide, the amount of (a) being equal to 50-70 mol per cent and the sum of (b) and (c) being equal to 30-50 mol. per cent.  The copolymer may be obtained by copolymerizing a vinyl compound with a mixture of at least one maleic acid half-ester and at least one maleic acid half-amide, or by copolymerizing a vinyl compound with maleic anhydride and then reacting the copolymer with at least one alcohol and at least one amine.  The vinyl compounds may be styrene (which is the compound used in all the specific examples), alpha-methylstyrene, vinyl toluene, halogenated styrenes, vinyl acetate, vinyl propionate, vinyl chloride, vinyl sulphonic acid, vinyl phosphoric acid, vinyl ethyl ether, vinyl butyl ether, vinyl cyclohexyl ether, acrylic acid esters of alkyl or cycloalkyl alcohols containing 1-8 carbon atoms in the alcohol component, or acrylonitrile.  The alcohols may have up to 15 carbon atoms and may be methanol, ethanol, propanol, butanol, isobutanol, ethylhexanol, cyclohexanol, or benzyl alcohol.  The amines may have up to 16 carbon atoms and may be dibutylamine, di-isobutylamine, diethylamine, dipropylamine, cyclic hexamethylene imine, pyrrolidine or piperidine. Copolymerization may be effected in bulk, in suspension, or in solution in benzene, toluene, xylene or ethanol.  As polymerization catalysts there may be used azoisobutyronitrile, hydrogen peroxide, benzoyl peroxide or alkali persulphates.  The resulting lacquer resins are compatible with shellac or manila resins.
Patent GB-816326-A (GB)
Title: Improvements in wearing apparel
IPC: A41D1/21
Filed: 1955-08-09
Abstract: 816,326. Skirts &c. EDWARDS, W. T. D. Nov. 9, 1956 [Aug. 9, 1955], No. 22901/55. Class 141 Adjustment at and below the waistline of a skirt or slacks is effected by sliders 3, 4 carried by the waistband 1, 2 co-operating with horizontal fasteners 5, 6 on a loose panel 7, by a slider 10 on the front of the skirt &c. co-operating with a vertical fastener 8 on the panel 7, and by laced-up plackets 11, 12.
Patent GB-1023812-A (GB)
Title: Gas cocks
Inventor: BENNETT ALEC RAYMOND
IPC: F16K5/12
Filed: 1963-08-26
Abstract: 1,023,812. Valves. SIDNEY FLAVEL & CO. Ltd. Aug. 20, 1964 [Aug. 26, 1963], No. 22944/63. Heading F2V. A linkage for operatively interconnecting the plug of a rotary plug gas cock 17 and a gas control handle 14 is such that in use movement of the handle at a uniform rate causes the plug to move relatively rapidly through that part of its range of positions in which no gas can flow through the cock, and to move relatively slowly through that part of its range of positions in which it permits a relatively small gas flow, the rate of movement of the plug in this latter part of its range of movement being less rapid than it would have been if the movement of the handle caused corresponding movement of the plug throughout the whole range. The handle is connected to the plug by a link 20 and pivots successively about fulcra 25 and 26 to effect the change in rate of movement, the fulcra being situated at opposite ends of a link 24 between the handle and a fixed support 27. The gas cock is one of a group each provided with its own actuating means.
Patent GB-1243939-A (GB)
Title: Manufacture of plastic articles having a mottled surface
IPC: B24C1/06
Filed: 1970-05-12
Abstract: 1,243,939. Sleeves for textile bobbins. PAULSBORO CHEMICAL INDUSTRIES Inc. 12 May, 1970 [27 Oct., 1969], No. 23014/70. Heading B8M. [Also in Division B3] A process for modifying a surface composed of a thermoplastic organic polymer such as the sleeve of a textile bobbin comprises blasting the surface with beads of silicon glass. The polymer may consist of a hydrocarbon polymer such as polyethylene or polypropylene a formaldehyde polyacetal, such as nylon, a tetrafluoropolyethylene, polyvinyl chloride, or a resilient copolymer or terpolymer. The polymer may be extruded or moulded and be in the form of a sleeve for a yarn bobbin, drinking cup, glass plate, handle for a brush, hammer or screwdriver, a toy, mat and the like. After forming, the polymer is cooled and passed into a chamber under a vacuum of 211 mercury and blasted with silica glass beads which are resistant to disintegration, range in size from 0À0021 to 0À0165 inch and pass through nozzles arranged around the polymer and connected to an air supply.
Patent GB-150542-A (GB)
Title: Improvements in or relating to the mounting of spindles, grinding machines, machine tools and other machinery
IPC: B24B41/04
Filed: 1919-09-18
Abstract: 150,542. Almfelt, K. J. Sept. 18, 1919. Spindles.-A self-contained spindle unit for machine tools comprises a spindle a mounted in a sleeve b provided with a U-shaped bracket c forming a gap for the driving-pulley d and also providing a support for the end of the spindle. The bracket c, which may be formed integrally with the sleeve b or may be secured thereto by screwing &c., carries a self-alining and axially movable ball-bearing e to support the end of the spindle, while the sleeve b is provided at its end near the cutter h, with a self alining ball-bearing f. A third ball-bearing may also be provided in the sleeve, as shown, for supporting the spindle between the bearings e, f. Specification 120,532, [Class 12 (i), Bearings &c.], is referred to.
Patent GB-1493238-A (GB)
Title: Compositions for tubular heating elements
IPC: H01B3/10
Filed: 1976-06-03
Abstract: 1493238 Refractory composition; magnesium oxide DYNAMIT NOBEL AG 3 June 1976 [7 June 1975] 23053/76 Headings ClA and ClJ A composition suitable for compaction to form the electrically insulating material of a tubular heating element, comprises granular fused magnesium oxide and a refractory oxidic additive, the additive having sliding properties such that it is capable of reducing destruction of the magnesium oxide crystals during compaction, and the additive also having a topochemical reactivity such that it is capable of reacting with the active conductivity centres at the surface of one or more adjacent magnesium oxide crystals at temperatures of from 800-1050‹ C. Preferably the additive is sintered, or fused and quenched, lying within the system the grains of the additive consisting of amorphous and microcrystalline to cryptocrystalline phases, the maximum crystal size in the crystalline fraction being 10 microns. Preferably the additive consists of 10-35% by wt. Al 2 O 3 , from 40-75% by wt. SiO 2  and 5-25% by wt. MgO, and is present in an amount of 0À05-5% by weight.
Patent GB-235515-A (GB)
Title: Improvements in and relating to multi-stage high pressure steam or gas turbines
IPC: F01D1/02
Filed: 1924-09-30
Abstract: 235,515. Erste Brunner Maschinen- Fabriks-Ges. June 11, 1924, [Convention date]. Addition to 229,626. Axial-flow type.-In a high-pressure multistage disc turbine, constructed as specified in the parent Specificiation but with partial admission, the ratio of the product of the height of passage, angle of the admission arc, and mean admission diameters of one nozzle diaphragm to the corresponding product for the immediately preceding nozzle diaphragm does not exceed 1.25 and is maintained at one and the same value throughout the whole high-pressure stage.
Patent GB-1303756-A (GB)
IPC: C07C68/00
Filed: 1971-04-19
Abstract: 1303756 Carbonic acid esters SNAM PROGETTI SpA 19 April 1971 [4 Mareh 1970] 23129/71 Heading C2C Carbonic acid esters, wherein R and R<SP>1</SP> may be the same or different and be alkyl, aryl or cycloalkyl radicals, are prepared by reacting one or more alcohols with carbon monoxide and oxygen in the presence of a complex compound of a metal of the Periodic Groups Ib, IIb, or VIII. The complex compounds may be MX n L m  where n is 1-3, m is 3-5, X is an anion and L a neutral ligand such as pyridine, dipyridyl, imidazole, phenanthroline, alkyl or aryl phosphine, dimethylsulphoxide, dimethylformamide, or chinuclidine. Examples describe the preparation methyl, ethyl, and mixed methyl benzyl carbonates using copper complex catalysts.