baber/WOPTO huggingface dataset:
Patent GB-680283-A (GB)
Title: Improvements in or relating to hydraulic control systems
IPC: B60T11/28
Filed: 1949-03-31
Abstract: 680,283. Hydraulic master cylinders. KAUFMANN, A. Sept. 9, 1949 [March 31, 1949], No. 8718/49. Class 103 (i). A hydraulic master cylinder for vehicle brake and other control systems, of the type comprising a main piston 1, the force on which is transmitted by a compression spring 5 to an auxiliary piston 6, the space beyond which is connected to the brake cylinders or other actuated device, is characterized in that no return flow of liquid is possible past the auxiliary piston 6 whatever may be its position in the cylinder. Both pistons 1 and 6 carry cup washers 4 and 7, respectively, the latter engaging, when the auxiliary piston is at the limit of its movement, the open end of a tubular member 8 provided with radial ports 9 in its side.
Patent GB-1237393-A (GB)
Title: Chromatographic separation process
Inventor: VLISMAS THEODORE
IPC: B01D15/08
Filed: 1968-02-22
Abstract: 1,237,393. Gel filtration chromatography. MIDLAND SILICONES Ltd. 21 Feb., 1969 [22 Feb., 1968], No. 8720/68. Heading B1X. [Also in Division C3] A medium for use in gel filtration chromatography comprises a cross-linked organosilicon material having a microporous structure, and a particle size preferably in the range 10-300Á. Columns packed with such material are particularly suitable for separating mixtures of polydimethylsiloxanes, both inter se and from mixtures thereof with styrene, and also mixtures of dibutyltin dilaurate and lauric acid, using in each case toluene as eluent. Preferred organosilicon materials are a condensate of a hydroxylated organopolysiloxane with an alkoxy silane, an alkyl orthosilicate or an alkyl polysilicate, or the product obtained by reacting a silicon-bonded olefinically unsaturated organopolysiloxane with a compound containing silicon-bonded hydrogen atoms, but a number of other wellknown products may also be employed. If desired, materials such as calcium carbonate may be incorporated into the compositions to be cross-linked, such materials being eventually leached out by treatment e.g. with acetic acid.
Patent GB-909002-A (GB)
Title: Dental equipment
Inventor: BOULSOVER GEOFFREY
IPC: A61C19/00
Filed: 1960-03-11
Abstract: 909,002. Dental stands. AMALGAMATED DENTAL CO. Ltd. March 1, 1961 [March 11, 1960], No. 8723/60. Class 81 (2). The arm carrying the spittoon of a dental stand is telescopically extensible and provided with vertical adjustment. The spittoon 2 is carried on an inner, channel section member 4 which is telescopically slidable within an outer member 5 by means of balls set in suitable runways. To allow this movement, the upper section of drain pipe 11 is slidable within a second section 12. Rotational movement is provided by a spigot assembly 27 at the top of a pillar 16 and this is supported on a carriage 22 which is allowed vertical movement by balls 21 running in parallel guideways, and is counterbalanced by a weight system 24. The drain pipe 15, below the pivot 27, is of flexible material such as polythene and a small flexible pipe 23 conveys water to a metal supply pipe 3. Specification 909,003 is referred to.
Patent GB-550506-A (GB)
Title: Ramps for enabling vehicles to surmount road obstructions, such as fire-hose
IPC: A62C33/06
Filed: 1941-07-11
Abstract: 550,506. Ramps for bridging obstacles in roads. GARRETT & CO., Ltd., C., and WEST, L. July 11, 1941, No. 8773. [Class 107] Ramps for enabling vehicles to surmount obstacles such as fire-hose comprise at least one longitudinal bridge member 12 of substantially inverted U-shape adapted to fit over the hose &c. 10, and a plurality of substantially triangular ramp members 13 detachably received at either side thereof. One or both vertical walls of the bridge members have bent up lower edges 12c with centrally disposed slots 12e, the edges 12c engaging below the vertical wall of an adjacent bridge member or the end wall of a ramp member 13, and the slots 12e receiving off-set lugs 12f on an adjacent bridge member, or side walls of the ramp members 13, to hold the parts against relative movement longitudinally. The ramp members 13 may have transverse braces 13g, Fig. 5, and have in one side wall a recess 13f and on the other a bent-up or attached lug 13d whereby adjacent ramp members may be held together. Bridge members with two bent-up edges may be distinguished from those with one bent-up edge as by different colouring. The parts are preferably made of sheet steel.
Patent GB-142268-A (GB)
Title: Improvements in the pneumatic springing of vehicles
IPC: F16F9/04
Filed: 1919-04-08
Abstract: 142,268. Farnsworth, F. S. April 8, 1919. Pneumatic springs. - A pneumatic spring for a road vehicle consists of a cylindrical chamber a fitted with a rotating vane e and fixed stop f. On each side of the vane, one or more bags g of elastic or inelastic material are located, and these are inflated. The vane e may be curved so as to form depressions in the bags when of inelastic material. The vane e is mounted on a shaft and may be connected to any ordinary leaf or other spring. In a modified form, the vane e may fill the whole diameter of the chamber and limiting stops be placed at suitable positions.
Patent GB-692964-A (GB)
Title: Improvements in or relating to roller clearers for use in drafting mechanisms for textile fibres
Inventor: NOGUERA JOSEPH
IPC: D01H5/64
Filed: 1951-04-16
Abstract: 692,964. Roller clearers. CASABLANCAS: HIGH DRAFT CO., Ltd. Nov. 19, 1951 [April 16, 1951], No. 8831/51. Classes 120(ii) and 120(iii) A roller clearer of the kind having a tapered body resting on two top rollers which travels along the roller lines comprises a barrel-shaped body 1 covered with a layer of clearer cloth or felt 3 and freely mounted on a rod 6. A number of felt washers 8 are clamped between metal washers 9 and between a cap 10 and a collar 7 at each end of the rod, the cap 10 being pressed against the washers 9 by screws 11. At each end of the barrel 1 is provided an annular insert 5 having three inwardly directed radial teeth 5a. Each collar 7 is provided with radial teeth 7a complementary to those 5a on the insert 5. Each screw 11 is provided with a pinion 14 having teeth 14a. At each end of the roller path a rack 15 is attached to the machine frame 24 by screws 23. The rack comprises teeth 17 which are engaged by the teeth 14a of the pinion 14 when the clearer reaches the end of its path, a spring strip 18 having an inwardly extending edge 18c and a shoulder 18b, a pawl 19 and a counterweighted lever 20, the short end of which overlies the slot 16 immediately below the teeth 17. When placed at one end of the roller path with the barrel 1 in a position such that the teeth 5a. engage the teeth 7a on the inward end of the rod, the clearer travels along-the roller path, the barrel 1 cleaning the rollers as it travels and the felt washers 8 on the depressed end cleaning the parts of the machine between and below the roller lines. At the end of the line the teeth 14a on the elevated end of the rod engage the teeth 17 of the rack -and by the rotation imparted by the rollers travel downwardly. The pinion 14 is prevented from pulling out by the engagement of the inner edge 18c with a neck 14b on the pinion. Once below the pawl 19 the pinion 14 will be prevented from moving upwards, and is prevented from falling out of the slot 16 by the lever 20. As the pinion 14 is descending the rack 17, the barrel 1 is moving along the rod 2 until it reaches the other end and the other teeth 5a engage the other teeth 7a, after which engagement is effected the clearer returns along the roller line.
Patent GB-236630-A (GB)
Title: Candle and taper holder for shovel handles
IPC: F24B15/00
Filed: 1924-04-08
Abstract: 236,630. Taft, H. E. April 8, 1924. Candle and taper holders. -A sheet-metal clip is formed with spring grips C adapted to fit on a shovel handle or the like and with spring grips A, B in a plane at right-angles to the grips C adapted to carry a taper or a candle respectively.
Patent GB-526765-A (GB)
Title: Improvements in or relating to the working up of rubber-like sulphur-containing organic condensation products
IPC: C08L81/00
Filed: 1939-03-20
Abstract: 526,765. Olefine polysulphide compositions. SILESIA, VEREIN CHEMISCHER FABRIKEN. March 20, 1939, No. 8848. Convention date, March 31, 1938. [Class 2 (iii)] Moulding powders and vulcanizable mixtures of sulphur-containing condensation products are prepared by mixing fillers and/or other additions such as are usual in the rubber industry, e.g. zinc oxide and accelerators, with the aqueous suspensions obtained by reacting alkali, alkaline earth or ammonium polysulphides with organic compounds having at least two halogen atoms or other monovalent negative radicals in the molecule, e.g. dihalogen hydrocarbons, dihalogen ethers, dihalogen esters, alkyl dithiosulphuric acids, alkyl dimercaptans or aldehydes, in such proportions that the weight of the fillers and/or other additions does not exceed the weight of the condensation product, the mixtures produced being largely freed from water by suction or expression and then subjected to a drying process, if desired after previous comminution. In examples, ethylene chloride is reacted with a solution of sodium tetrasulphide in the presence of magnesium hydroxide, the suspension produced washed, incorporated in a mixture of active or inactive carbon black, zinc oxide, mercaptobenzothiazole and tetramethylthiuram disulphide, filtered and the cake produced either dried or passed through a sieve and then dried.
Patent GB-1465856-A (GB)
Title: Process for reducing nitric oxide concentration in combustion effluents
IPC: F23C99/00
Filed: 1974-02-27
Abstract: 1465856 NO reduction EXXON RESEARCH & ENG CO 27 Feb 1974 [16 March 1973] 8861/74 Heading C1A NO in combustion gas is chemically reduced by contacting with 0À4-10 moles of NH 3  per mole NO in the presence of oxygen and of a substance which is gaseous and readily oxidized below 1600 F., the contacting being performed at 1300-2000 F. NH 3  may be provided by a precursor, such as a solution of NH 3 , ammonium formate, oxalate or carbonate, and the reducing material may be H 2 , a paraffin, olefine or aromatic hydrocarbon, sulphonated hydrocarbons, CO, and organic hydrocarbons containing O or N.
Patent GB-208069-A (GB)
Title: Improvements in thrashing machines
IPC: A01F12/44
Filed: 1923-03-28
Abstract: 208,069. Reddie, L. N., (Machinefabriek De Pol). March 28, 1923. Thrashing-machines. - The grain stalks are thrown into the thrashing drum 3 so that the ears lie over a portion 12 of a trough containing the beaters 9, this portion of the trough being provided with perforations sufficiently wide to permit grain to fall through to a second perforated screen 14 along which it moves to a delivery aperture 16. The concave 4, straw shaker 5, perforated sheet 6 co-operating therewith, and beaters 9 are of ordinary construction. A current of air from a blower 7 is passed through the beater trough to carry off the light particles of straw, casings, chaff, and the like through the opening 10. The part 13 of the trough near to the opening 10 is provided with small perforations through which heavy grit and weed seeds may fall. Any unthrashed ears that may fall through the machine are discharged through a shoot 15.
Patent GB-633105-A (GB)
Title: A new or improved method of joining lengths of strip material so as to form bands
IPC: B21D39/03
Filed: 1947-04-02
Abstract: 633,105. Dish holders. BRADLEY, W. G., and HEATH, I. A. April 2, 1947, No. 8907. [Class 128] [Also in Group XXII] Metal bands that serve as carriers for cooking-vessels formed of heat resisting glass, or that may be holders for flower pots, condiment sets &c. have the ends connected by riveting, the rivets being integral with die-cast handle fittings that conceal the joints. The fittings are in two interlocking parts 9, 10 and the part 10 is hollow on the underside to serve as finger grips. Feet 11 are also attached by rivets, are shaped to fit the beaded or wired edge of the band and may support a bottom (not shown). The fittings may be of non metallic material with rivets embedded during moulding. When the bands are of polygonal shape, the fittings are angular for attachment at corners.
Patent GB-840817-A (GB)
Title: Recovery of unsaturated hydrocarbons
Inventor: BOGART MARCEL JEAN PAUL
IPC: C07C7/11
Filed: 1957-03-19
Abstract: Substantially pure acetylene and pure ethylene are simultaneously recovered from a gaseous mixture obtained by the high temperature cracking of a hydrocarbon feed by passing this gaseous mixture comprising acetylene, ethylene and diacetylene through a first contact with a sufficient amount of a selective solvent to remove substantially all the diacetylene, passing the gaseous mixture through a second contact with a selective solvent of sufficient amount to absorb substantially all the acetylene and ethylene in the mixture, separating the absorbed gas from the solvent of the second contact, passing the separated gas through a third contact with a selective solvent of sufficient amount to absorb substantially all of the acetylene, withdrawing as product all of the pure ethylene passing through said third contact solvent and separating as product substantially all of the acetylene absorbed by the third contact solvent.  The preferred selective solvents are dimethylformamide for the removal of the diacetylene, lean oil to dissolve the acetylene and ethylene together, and dimethylformamide for the final separation of acetylene.  The cracking step may be effected in two steps, firstly as a high temperature regenerative cracking process at 1/2 atmosphere total pressure with steam dilution and temperatures ranging from 1800 DEG  to 2300 DEG  F. and then by conventional cracking in a tubular furnace at slightly above atmospheric pressure at 1470-1550 DEG  F.  Loss of acetylene at the initial adsorption may be minimized by the recycling of a small quantity of stripping gas consisting of the nearly acetylene-free residual gas produced in the system.ALSO:Substantially pure acetylene and pure ethylene are simultaneously recovered from a gaseous mixture obtained by the high temperature cracking of a hydrocarbon feed by passing this gaseous mixture comprising acetylene, ethylene and diacetylene through a first contact with a sufficient amount of a selective solvent to remove substantially all the diacetylene, passing the gaseous mixture through a second contact with a selective solvent of sufficient amount to absorb substantially all the acetylene and ethylene in the mixture, separating the absorbed gas from the solvent of the second contact, passing the separated gas through a third contact with a selective solvent of a sufficient amount to absorb substantially all of the pure ethylene passing through said third contact solvent and separating as product substantially all the acetylene absorbed by the third contact solvent.  The preferred selective solvents are dimethylformamide for the removal of diacetylene lean oil to dissolve the acetylene and ethylene together, and dimethylformamide for the final separation of acetylene.
Patent GB-230651-A (GB)
Title: Improvements relating to weighing apparatus
IPC: G01G23/08
Filed: 1924-04-09
Abstract: 230,651. Brecknell, Ltd., C. W., and Brecknell, C. W. April 9, 1924. Dash-pots for damping the oscillations of the beam of a weighing- apparatus comprise, in combination, an oil or other liquid receptacle e in which a vane d or paddle connected to the beam a can swing and one or a pair of adjustable submerged hinged plates f situated over the vane d and adapted to obstruct the free movement of the oil &c. A slot h is provided in the plates to allow the passage of the stem c. A hood i is preferably mounted above the vane d on the stem c. The plates f are adjusted by means of an abutment j which is operated by means external to the receptacle e.
Patent GB-398272-A (GB)
Title: Lithographic transfer press
IPC: B41F3/30
Filed: 1932-03-30
Abstract: 398,272. 'Control of motors. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Traung, L., Traung, C. F., Jackson, L. H., Johnston, H. W., Sheedy, F. T., and Gard. ner, H. T., (trading as Traung Co.); 640, Battery Street, San Francisco, U.S.A.) March 30, 1932, No. 9122. [Class 38 (iii).] Travelling to predetermined limits.-In a transfer press having a flat reciprocating bed 4 and a pressure roll 5 adjustably mounted above the bed, the bed is reciprocated under the pressure roll and its motion is automatically stopped while maintaining the roll under pressure against the bed. The bed 4 is normally supported by idler rollers 3 but for transferring the designs the bed is moved forward into the bite of the steel pressure roller 5 and a coacting roller 6, the latter being mounted so that its upper surface is just above that of the idler rollers 3. The roller 6 is then rotated through the gear 8 and worm 9 by the reversible motor 13, pressure being applied by a hydraulic handoperated pump 17 so that the roller 5 is depressed against the springs 16 into contact with bed 4 which is thus frictionally reciprocated. The motor 13 is controlled by four press-button switches S, F, A, R, and two automatic switches 32, 32<1> both of which normally stand upright but when either is pressed over by the bed passing over it the motor circuit is broken. Depression of the switch F starts the motor in a forward direction and the switch can then be released. The motion continues until the switch 32<1> is tripped when the bed stops, with the roll still maintained under pressure against the bed and a reverse motion is obtained by depressing the switch R which motion continues until the switch 32 is tripped. To move the bed out from under the pressure roll in the forward position, the switch F is pressed down and the advance button A pressed and held down thereby short-circuiting the switch 32<1> so that the motor continues to run until the button A is released. A similar but reverse movement is obtained from the switches R, A. During these additional movements, the pressure is automatically released by trips 23, 24, one of which engages a roller 25 mounted on a sliding rod 26 which lifts the end of a pivoted lever 27 and thereby opens a relief valve 21. Specification 367,886, [Group XVI], is referred to.
Patent GB-1390594-A (GB)
Title: Pipeline pigs
IPC: B08B9/04
Filed: 1973-02-23
Abstract: 1390594 Pipe-line pigs TRANSCANADA PIPELINES Ltd 23 Feb 1973 [2 March 1972] 9133/73 Heading F2N [Also in Division G1] A pipe-line pig 12 includes a housing 20, containing electrical circuitry 25 and one or more batteries 26, and a switch 30, which is normally open to disconnect the circuitry 25 from the battery(s) 26 but which automatically closes in response to either the pressure within pipe-line 10 exceeding a certain value or the pressure difference between the interior of the pipe-line and the interior of the housing 20 exceeding a certain value. In the latter case, the housing 20 is pressure-tight and contains inert gas, e.g. nitrogen, at low pressure and introduced via connections 38, 40. At least some of the circuitry may be encapsulated in plastics material. The circuitry may be for measuring fluid flow characteristics or checking the pipeline. An electrical socket 42 provides access to data from the circuitry. The pressure-responsive switch arrangement is intended to reduce the risk of spark-induced explosions when pipe-line 10 carries explosive mixtures.
Patent GB-1200694-A (GB)
Title: Improvements relating to gear pumps
IPC: F04C2/10
Filed: 1968-02-26
Abstract: 1,200,694. Gear pumps. DAIMLER-BENZ A.G. Feb.26, 1968 (Feb.28, 1967], No.9172/68. Heading F1F. An internally-toothed gear pump wherein the freedom of movement of an approximately crescentshaped segment which is arranged between the teeth of the two wheels of the pump and is free to move in at least one direction in the plane of the wheels towards the pressure side of the pump is limited, with slight play, by stop means. A crescent-shaped sealing segment 25, disposed between the teeth of an internally-toothed gear 11 and an externally-toothed gear 10 to divide the suction side 13 from the pressure side 14 of the pump is abutted on its end face 26 towards the suction side by a pin 27 whilst a stop pin 29 cooperates with a widened portion 28 of a slot 21 to permit slight movement of the segment towards the pressure side of the pump to assist sealing. Torques 18, 19 of the slot 21 are urged apart by pump pressure, assisted if desired by helical springs, to urge the segment sealingly against the gear teeth. The improved sealing it is stated indirectly reduces pump noise.
Patent GB-714794-A (GB)
Title: Hand hammers
Inventor: STEPHENS WALTER RUNCIMAN
IPC: B25D1/02
Filed: 1952-04-10
Abstract: 714,794. Hammers. BIRMINGHAM BELTING CO., Ltd., [trading as THOR HAMMER CO.]. April 2, 1953 [April 10, 1952], No. 9195/52. Class 61 A leather or other relatively soft striking piece c having at its inner end a centra recess, is secured in ar annular recess in one or each end of the metal head a of a hammer. The annular recess is formed by providing a cylindrical socket in the end of the head a and forming or securing at the centre a cylindrical boss b of equal, longer or shorter length than that of the socket. The striking piece is driven or screwed into the socket which is provided with circumferential ridges or screw thread on the peripheral face. In a modification instead of the ridges or screw thread, a swelling is provided on the outer end of the boss. In another modification the boss has longitudinal key pieces which engage with complementary grooves in the striking piece.
Patent GB-104447-A (GB)
Title: An Improved Clutch.
Inventor: TAYLOR GEORGE THOMAS
IPC: F16D41/16
Filed: 1916-07-03
Abstract: 104,447. Taylor, G. T. July 3, 1916. Clutches, ratchet. -In reversible clutches for use in driving the land wheels of agricultural implements &c., pawls c turning ou pivots d on one member a are turned intc position to drive the member b in either direction or to remain inactive, by springs g and pins h in a plate adjusted by cam-means sliding on the shaft e.
Patent GB-237640-A (GB)
Title: Improvements in or relating to locomotives
IPC: B61C9/30
Filed: 1924-04-12
Abstract: 237,640. Reid, Sir H., and MacLeod, J. April 12, 1924. Driving bogie wheels; gearing with provision for permitting flexure or distortion; wheel-driving attachments and resilient couplings; reversing-gearing.-Comprises a turbine locomotive in which the wheels are driven through toothed gearing, hollow shafts surrounding the wheel axles, and flexible driving connections comprising driving elements on the hollow shafts, driven elements on the wheels or wheel axles, and spherically-seated spring connections between the driving and driven elements, the turbine and gear casings being fixed rigidly or yieldingly either to a driving bogie frame or to the main frame. The turbine 4 drives the hollow shafts 10 through double gear reduction 5, 6 and 7, 8, the gear casing 2 being carried by the main frame between guides 3. The driving bogie 1 is pivoted at 16 to the main frame, bearing rollers 15 being provided, and a leading or trailing bogie 17 is pivoted at 18 to the driving bogie. Hydraulic reversing gear may be provided or two opposed bevel wheels 8 may be fixed on a sleeve slidable on each hollow shaft 10, so that either bevel wheel can be made to engage with the corresponding bevel pinion 7. Specification 178,881 is referred to.