baber/WOPTO huggingface dataset:
Patent GB-1401386-A (GB)
Title: Method and apparatus for finishing workpieces under highly compressed conditions
IPC: B24B31/073
Filed: 1973-04-12
Abstract: 1401386 Vibratory finishing SHIKISHIMA TIPTON MFG CO Ltd 12 April 1973 [17 April 1972] 17641/73 Heading B3D [Also in Division B2] A method of finishing workpieces under compressed conditions by vibration comprises causing a mass including workpieces and abrasive medium to circulate by vibration inside a circular annular vibratory finishing tub having a radial cross-sectional area at a centre portion E greater than that at end portions F, G. The tub may be substantially horizontal (Fig. 4, not shown) or inclined and have an upper part 1, descending part 1a, ascending part 1b, and a separating part 1c. The top of the tub is closed except for a charging port which is closed during operation by a cover 16a. The tub is supported by springs 5 on a pedestal 4 and has a cylindrical housing 7 provided with a flange 7 on which is mounted an electric motor 9 having weights 10. A dam 12 is secured to a superposed portion 11 of the tub and has an ascending part and a descending part 12a. A flap 13 is movable about a pivot 14 between a position shown in which the mass after passing over the dam continues around the tub, and a position 13a in which the mass passes on to a screen 15, the abrasive medium falling through the screen into the tub and the workpieces being automatically ejected along a path 20. During treatment, the mass moves in the direction 17b along a path 17c from the portion F having a medium cross-section to the portion E having the largest cross-section. From the portion E the mass moves up the dam 12 to a portion G having the smallest cross-section so that the mass is compressed as it passes over the dam and, when the flap is in its upper position, into the portion F. A plate 11 adjacent the portion E prevents back flow of the mass during the separating operation. The apparatus may be used as a grinding  mill for milling of bauxite ores using aluminium ball. Reference has been directed by the Comptroller to Specification 905,281.
Patent GB-294757-A (GB)
Title: Improvements in appliances for tobacco pipe smoking
IPC: A24F5/08
Filed: 1927-07-04
Abstract: 294,757. Pearl, G. W. July 4,1927. Tobacco pipes.-A metal fitting for the bowl of a pipe compises a rinn A fitting the rim of the bowl, scraper arms B connecting the ring to a perforated disc C, and claws D beneath the disc for holding cotton wool.
Patent GB-354461-A (GB)
Title: Improvements in regulating means for internal combustion engines
IPC: F02D9/00
Filed: 1930-06-07
Abstract: 354,461. Spray carburetters. ROWLEDGE, A. J., Ellerslie, Trowels Lane, Derby. June 7, 1930, No. 17738. [Class 7 (iii).] In aircraft engines having two or more choke tubes or carburetters delivering mixture into the same cylinder or sets of cylinders and each controlled by a separate throttle valve, one or more of the throttle valves are adjusted manually by the pilot, and the other or others are adjusted automatically in accordance with the altitude. The Figure shows two choke tubes d<1>, d<2> leading to the same blower b and fitted with separate throttle valves e, e<1>, the former of which is manually controlled from the pilot's hand-lever g through connections g<3>, g<4>, h<2>, h<3>, while the latter is automatically opened by a spring j<2> and lever j<1> to an amount limited by a stop k<2> adjusted according to altitude. The latter throttle mav also be manually closed by means of a pin-and-slot connection h<6> between the lever arm h<5> and a rod j connected to the lever j<1>. The stop k<2> may be connected to a relay k actuated by blower pressure and controlled by an aneroid device ; or the relay may be actuated by induction-pipe depression, or oil or water pressure.
Patent GB-797190-A (GB)
Title: Improvements in and relating to fluid controlling valves
Inventor: SHAND STANLEY GRAPES
IPC: F16K1/12
Filed: 1954-05-27
Abstract: 797,190. Valves. SAUNDERS VALVE CO., Ltd. May 25, 1955, [May 27,1954] No. 17907/57. Divided out of 797,189. Class 135. A fluid control valve has a closure member 29 carried by a movable member which has some freedom of motion in relation to the valveoperating mechanism under spring bias towards the closed position, this freedom of motion being partly taken up against the spring bias when the valve is closed. The inlet pressure has access to an area E-D at the back of the movable member greater than the area A within the seating area when the valve is closed so that the valve is held closed mainly by the inlet pressure and is positively opened by the operating mechanism after the freedom of motion has been taken up. The movable member includes a piston body 13, a piston head 28, and a skirt 32. The body 13 has a sliding fit in a part of the valve casing and is sealed with respect thereto by a seal, such as the ring 14, located between the operating mechanism and the area at the back of the movable member to which the inlet pressure has access. The piston body 13 slides in a sleeve 22 mounted with a valve body 11 and held therein by an operating spindle 15 provided with sealing rings and a thrust collar 18. An eccentric pin 23 on the spindle 15 forms a pivot for one end of a connecting rod 24 the other end of which has a slot 41 forming a lostmotion connection with a pivot 25 on the piston body 13. A spring 43 tends to take up this lost motion. The head 28, together with a hard rubber or other resilient closure member 29 is secured on an extension 26 of the piston body 13 by a nut. The skirt 32 slides in a fluid-tight manner on the sleeve 22 and the annular space 35 between the parts is connected to the inlet through passages 36, 37. Two arcuate passages (not shown) in the body 11 connect a seating recess 39 in an inlet fitting 42 with a passage in an outlet fitting 47 faired off by a hemispherical or similar dome 48 having a central vent aperture and peripheral mounting lugs. The motion of the spindle 15 is limited to approximately 180 degrees by a projection engaging shoulders on a fixed plate 55 and in the closed position of the valve the pin 23 is just beyond the dead-centre position.
Patent GB-145716-A (GB)
Title: Improvements in railway gun carriages
IPC: F41A23/40
Filed: 1920-07-02
Abstract: 145,716. Krupp Akt.-Ges., F. April 2, 1918, [Convention date]. Field carriages.-Consists in providing a railway gun-carriage with a rear bogie D that can be secured to the frame B in a transport position I and a firing position II, the latter position providing more room for the gun to recoil when fired at elevation. In the transport position shown, the load is equally distributed on the bogie axles as the bogie C, which is nearer the centre of gravity S, is provided with one more wheel axle than the bogie D. Fig. 3 shows the frame B resting by means of a ball pin J in a bearing d<1> carried by the bogie D. The ball-pin is slidable in guides g<1> on the frame, and is secured in the positions I and II by a bolt H.
Patent GB-1457272-A (GB)
Title: Means for preventing down draughts in chimneys
IPC: F23M9/00
Filed: 1973-04-14
Abstract: 1457272 Preventing down draughts in chimneys T WHALLEY 1 Feb 1974 [14 April 1973] 18078/73 Heading F4J [Also in Division F2] Down draughts in a chimney or flue stack are prevented by an open ended angle shaped tubular member 11 having a limb 12 which extends upwardly in the stack and a limb 13 which extends externally of the stack and which is bifurcated into inlets 14 and 15.
Patent GB-841014-A (GB)
Title: Improvements in the production of compounds of the beta-cyclogeranylidene series
Inventor: POMMER HORST
Filed: 1958-06-06
Abstract: Compounds bearing the cyclogeranylidene radical are obtained in a process which comprises reacting a compound of the general formula <FORM:0841014/IV(b)/1> wherein n is 0, 1, 2, 3, or 4, and R is H or CH3 with a triarylphosphine by the action of a proton donor and continuing the reaction with an oxo compound by the action of a proton acceptor.  A hydrosalt of a triarylphosphine may be used instead of the triarylphosphine and the proton donor.  As proton donors there may be used strong inorganic acids, e.g. halogen hydracids and oxygen acids of sulphur and phosphorus which do not exert an oxidizing or reducing action under the reaction conditions. As proton acceptors acid binding agents such as organic bases, inorganic bases and organometallic compounds may be employed. Oxo-compounds are aliphatic and aromatic aldehydes and ketones and formic acid esters.  Among the compounds mentioned as starting materials are: 2,6,6-trimethylcyclohexane-2-ylidene - 1 - methylene, 4 - (2,6,6 - trimethylcyclohexene - 21 - ylidene - 11) - butene - 2, 5 - (2,6,6 - trimethylcyclohexene - 21 - ylidene - 11)-3 - methylpentadiene - 1,3, 8 - (2,6,6 - trimethylcyclohexene - 21 - ylidene - 11) - 6 - methyloctatriene - 2,4,6, and 9 - (2,6,6 - trimethylcyclohexene - 21 - ylidene - 11) - 3,7 - dimethyl-nonatetraene-1,3,5,7.  4 - (2,6,6 - Trimethylcyclohexene - 21 - ylidene-11)-butene-2 is obtained by treating b -ionol with a dehydrating agent.  The other hydrocarbon starting compounds are obtained in a similar manner from the corresponding alcohol. Specification 784,628 is referred to.
Patent GB-120801-A (GB)
Title: Improvements in Electrode Holders for Arc Welding Purposes.
Inventor: SMITH PERCY FROST
IPC: B23K9/28
Filed: 1917-12-07
Abstract: 120,801. Smith, P. F., and Robinson, V. S. Dec. 7, 1917. Heating by electricity.- A holder for a wire or carbon electrode for are soldering or welding comprises parallel .spring blades I attached to opposite sides of a flat copper shank G projecting from a hollow handle A of teak or the like which encloses the electric connexion. Transversely-grooved copper jaws J may be attached to the spring blades I. Within the handle the shank G is threaded to receive a holding-nut C and along hexagonal nut D, in the end of which the conductor E is secured by sweating or otherwise. The bore of the handle is flared at its rear end F.
Patent GB-596251-A (GB)
Title: Improvements relating to gas taps
IPC: F16K5/10
Filed: 1945-07-16
Abstract: 596,251. Valve members seating on other valve members. RADIATION, Ltd., and HAWKES, S. A. July 16, 1945, No. 18156. [Class 135] A gas tap comprises a. rotary conical plug b open at one end and provided with an adjustable hollow pressure regulator k within a bore in the plug. Apertures m in the regulator are obturated to a variable extent by an annular step n in the bore of the plug, adjustment being effected by axial movement of the regulator consequent upon rotation of a threaded spindle o mounted within a plug-actuating sleeve e.
Patent GB-1270432-A (GB)
Title: Track guided vehicle
Inventor: WEST ANTHONY ALLEN
IPC: B60V3/04
Filed: 1969-04-09
Abstract: 1,270,432. Tracked hovercraft; railway systems. TRACKED HOVERCRAFT Ltd. 9 April, 1969, No. 18240/69. Headings B7K and B7L.  A linear motor propelled tracked vehicle, in the embodiment an air cushion vehicle, has a device to stabilize it against cross winds, the device consisting of a flap or flaps which may be pivoted by hydraulic actuators controlled by pressure sensors 15 so that in response to a cross wind P the flaps 10 occupy the positions shown in full lines and in response to a cross wind Q the flaps move to the positions shown in dotted lines thereby in each case producing a rolling effect on the vehicle opposing the effect of the cross wind. When the cross wind is negligible the flaps may be retracted to lie along the lower surfaces 14 of the vehicle. Flaps could be provided on only one side. Fig. 3 (not shown) describes a device in which the flaps are arranged so as to be retracted and lowered automatically on the opposite side of the vehicle from the wind and, Fig. 4 (not shown), describes an embodiment in which the flaps retract against the outside walls of the vehicle. It is stated that the flaps could be replaced by curtains of air. The invention is applicable to wheeled trains operating on tracks.
Patent GB-1043646-A (GB)
Title: Sheet feed mechanism
IPC: G03G15/00
Filed: 1964-05-01
Abstract: 1,043,646. Feeding sheets. RANK ZEROX Ltd. May 1, 1964 [May 24, 1963], No. 18249/64. Addition to 1,015,634. Heading B6B. A sheet gripper mounted on endless chains 321 comprises a crossbar 351 supporting a fixed lower jaw 355 and a plurality of movable upper jaws 361. Each upper jaw is shaped to form gripper portions 362, a depending tongue 363 which passes through a slot 352 in the lower jaw and cross-bar, and a central arm 373. The upper jaws 361 are mounted on pins 371 with their central arms 373 located in recesses 372 in the pins. They are urged towards the lower jaw by springs 365. The latter are shaped to provide a central portion 367, which engages the curved lip 364 at the lower end of the depending tongue 363, and end portions 368, which pass through slots 357 in the lower jaw and cross-bar to engage the underside of the latter. The lower jaw has a groove 360 with which the gripper portions 362 co-operate. The upper jaws are opened and closed by cam means adapted to engage the depending tongues 363. The latter also form front stops for registering a sheet in position.
Patent GB-728738-A (GB)
Title: Decarbonating and desulphurising gaseous mixtures
IPC: C10K1/12
Filed: 1951-08-03
Abstract: <PICT:0728738/III/1> Carbon dioxide, hydrogen sulphide, &c., are removed from gas mixtures by a solution of inorganic non-volatile alkaline compounds such as sodium or potassium carbonate under pressure at 60-85 DEG  C. and the solution is regenerated hot at ordinary pressure by direct contact with exhaust vapours or hot gases previously heated and moistened by hot fluids.  Vapours of low heat content with a little air ascend a regenerator 1 and are discharged through a preheater 2 for the exhausted wash liquid, a water-cooled condenser 3 and separator 8.  The regenerated liquid is returned to the absorber 7 through preheaters 4 or 5 either for the exhausted liquid or for spent caustic soda solutions used in eliminating last traces of carbon dioxide to be recaustified with lime, and through a cooling tower 6 in counter current with air.  The concentrated liquid may be further cooled in an exchanger 12 to the optimum absorbing temperature.
Patent GB-243778-A (GB)
Title: Improvements in or appertaining to bearings or supports for flat or laminated springs for road and other vehicles
IPC: B60G11/34
Filed: 1924-08-02
Abstract: 243,778. Trafford, W. Aug. 2, 1924. Laminated springs. - A curved laminated vehicle spring a, attached at its ends to a vehicle body, is mounted on the axle with its centre of curvature above the base of the bodv by means of a support f curved in the same direction as the spring, the support being proportioned so that as the load increases the effective length of the spring is gradually decreased until approximately the whole length of its length contacts with the support but the spring retains sufficient curvature to prevent overstressing. The spring is clamped to the support and axle by a clip comprising a plate h having depending flanges to engage the axle and a projection p to engage a recess in the support f.
Patent GB-577805-A (GB)
Title: Improvements in and relating to current-limiting fuses
IPC: H01H85/18
Filed: 1943-11-09
Abstract: 577,805. Fusible cut-outs. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 9, 1943, No. 18587. Convention date, Nov. 11, 1942. [Class 38 (i)] A fuse having a long fusible section to provide a high resistance arc path to limit the current, has the fuse element 15 (which may consist of one thin conductor, or more in parallel) surrounded by an arc-quenching material in the form of a mixture of coarse and fine particles 16, 17. Fused quartz, silica &c. of 80 mesh and 200 mesh grades mixed together produces a current limiting action without heavy voltage surges. The fuse wire 15 may be wound helically on a ribbed core 14 mounted in a tube 10 of glass, porcelain &c. Ferrules 11 sealed to the tube are closed by caps 13 and the wire 15 is connected to the ferrules by conductive pieces 19 that also support the core.
Patent GB-596347-A (GB)
Title: Improvements in or relating to selenium rectifiers
IPC: D03C1/14
Filed: 1945-07-20
Abstract: 596,347. Asymmetrically-conducting resistances. STANDARD TELEPHONES & CABLES, Ltd., and SEARLE, A. M. July 20, 1945, No. 18643. [Class 37] A selenium rectifier comprises a base 1 of insulating material which may be a ceramic material with a nickel or zinc coating 5 extending over the upper surface and edges, a layer of selenium 3 and a counter-electrode 4. Alternatively, the ceramic plate may be perforated and dipped in molten selenium to which is applied an electrode on one side and a counter-electrode on the other. Lugs may be provided to support the ceramic plate and also the electrical connections thereto. In another form, the supporting plate may be replaced by woven or porous material.
Patent GB-1356373-A (GB)
Title: Method of preparing a 6alpha21-difluoro-20-keto-pregnane
IPC: C07J7/00
Filed: 1972-04-21
Abstract: 1356373 Preparation of 6α,21-difluoro-20- keto pregnanes SYNTEX CORP 21 April 1972 [26 May 1971] 18733/72 Heading C2U 6α,21 - Difluoro - 20 - keto - pregnanes are prepared by treating corresponding 21-bromo- 6α-fluoro-20-keto-pregnanes with an alkali metal fluoride selected from potassium, cesium and rubidium fluorides in tetramethylenesulphone. This process is particularly applicable to the following synthesis of 9α,11#-dichloro-6α,21- difluoro - 16α,17α - alkylidenedioxy - 3,20 - diketo - pregn - 4 - enes and - pregna - 1,4 - dienes wherein Ac is C 2-12  acyl; R is C 1-7  alkyl or is alkaryl; R<SP>1</SP> and R<SP>2</SP> are each H or C 1-7  alkyl, or together with the adjacent carbon atom form a cycloalkyl group of 5-7 ring atoms; and #<SP>1</SP> is optional. The 21-bromo steroids are prepared by heating the 21-alkyl- or -alkaryl-sulphonates with an alkali metal bromide in an inert solvent. The 21-fluorination is typically effected at 100- 135‹ C.
Patent GB-298928-A (GB)
Title: New black and grey vat dyes
IPC: C09B3/30
Filed: 1927-07-15
Abstract: 298,928. British Dyestuffs Corporation, Ltd., and Thornley, S. July 15, 1927. Addition to 276,767, Anthraquinone vat dyes.-The vat dyes obtained by alkali fusion of the sulphonic acids prepared by direct sulphonation of homologues or derivatives of benzanthrone are condensed with hydroxylamine or its salts in presence or absence of ferrous sulphate; and the vat dyes obtained by alkali fusion of the benzanthrone sulphonic acids prepared from anthraquinone sulphonic acids by the glycerine method are similarly treated. In examples, the dyes obtained from Bz1-chlor- and 2-methylbenzanthrones by sulphonation and alkali fusion, and from anthraquinone #.sulphonic acid by condensation with glycerine and alkali fusion of the Benzanthrone sulphonic acid obtained, are employed, giving grey-blue, grey and blue-grey dyes respectively. Specifications 20837/06, 276,766, and 298,931 are referred to.
Patent GB-757212-A (GB)
Title: Envelopes, bags and folders
Inventor: JONES JOHN SAXON
IPC: B65D27/16
Filed: 1953-07-07
Abstract: 757,212. Envelopes. JONES & CO., Ltd., S. June 14. 1954 [July 7, 1953], No. 18870/53. Class 146(2) [Also in Group XVII] An envelope, bag or folder has a flap portion coated with an adhesive containing or consisting of polyvinyl alcohol. The polyvinyl alcohol may comprise 50 per cent to 100 per cent of the adhesive, the other ingredients of which may be dextrine of pure gum arabic. With this adhesive coating there is very little curling of the flaps and any tendency to "block" or stick before actual use, is avoided.
Patent GB-238692-A (GB)
Title: Improvements in or relating to plant for purposes such as the coaling of locomotives
IPC: B65G63/06
Filed: 1924-08-08
Abstract: 238,692. Mitchell, F. G. Aug. 8, 1924. Hoists with guided skips for transferring coal to locomotives B or to a raised coaling bunker comprise a cradle i provided with rollers o, o<1> running in vertical guideways g, h which diverge at the upper part of the hoist so that the cradle is tipped about the roller o when this reaches a bearing at the end of the guide g. The cradle is hoisted by an overhead winch and motor u. The weight of the cradle and loaded truck is counter-balanced by weights v in a frame w.
Patent GB-613655-A (GB)
Title: Improvements in or relating to electric heating elements, particularly applicable tode-icing
IPC: H05B3/34
Filed: 1946-06-24
Abstract: 613,655. Woven fabrics. ELY, R. S., and KETCHAM, I. M. June 24, 1946, No. 18906. Drawings to Specification. [Class 142(iv)] [Also in Group XI] A woven fabric comprises a warp of flexible electric resistance wires and a weft of glass or asbestos. A copper loop may be woven transversely into the fabric near the end and soldered to the warp wires to form terminals. Resistance wire may also be used as weft and may be connected in series or parallel with the warp; in this case the warp and/or weft wires may be covered withbraided glass or asbestos sleevir.g.
Patent GB-1364945-A (GB)
Title: Nuclear fuel assembly
IPC: G21C3/324
Filed: 1972-04-24
Abstract: 1364945 Fuel elements COMMISSARIAT A L'ENERGIE ATOMIQUE 24 April 1972 [5 May 1971] 18918/72 Heading G6C A fuel assembly of the type commonly employed in sodium-cooled fast reactors comprises a stainless steel sleeve 14 of hexagonal crosssection housing two superposed bundles of fuel pins, the pins 20 of the lower bundle which are carried by a grid 21 secured to the bottom endfitting 12 being of the "integrated" type and the pins 30 of the upper bundle containing pellets of fertile material. The head 16 is of neutronabsorbing material and, together with the heads of the other fuel assemblies, forms a top neutron shield of the reactor core. The cladding of each fuel pin 20 contains successively from the bottom upwards, i.e. in the direction of coolant flow f, a fission gas collection chamber 22, a stack 24 of pellets of fertile material (e.g. depleted uranium oxide), a stack 26 of pellets of fissile material (e.g. a mixed oxide of uranium and plutonium), and finally a space permitting upward expansion of the pellets and possibly containing a spring for maintaining the pellets in position. The sleeve 14 is constituted by two sections 34, 36 joined together by electron beam welding or arc welding. The lower section 34 is of sufficient thickness to afford resistance without any appreciable distortion due to the difference between the pressure at which coolant is admitted into the fuel assembly and the external pressure. The upper section 36 has a distinctly smaller thickness than the section 34, thereby endowing it with a degree of flexibility. The welded junction is situated in that region of the sleeve 14 between the two fuel bundles.
Patent GB-498407-A (GB)
Title: Improvements in or relating to continuously operated furnaces
IPC: C21D9/66
Filed: 1937-07-07
Abstract: 498,407. Continuously-operated furnaces. SIEMENS-SCHUCKERTWERKE AKT.-GES. July 7, 1937, No. 18936. Convention date, Sept. 4, 1936. [Class 51 (ii)] In a continuously-operated furnace more particularly adapted for heating of strip metal in a protective atmosphere the material enters and leaves the heating-zone 1 through parallel conduits 12, 13 which are interconnected by passages 14, 15, a fan 16 being fitted in the passage 14 nearer the heating-zone to circulate the furnace atmosphere in order to effect heat transfer between the ingoing and outgoing material. The direction of circulation is preferably such that in the portions of the conduits between the fan and the heating-zone the gas flow is in countercurrent to the material, and the arrangements may be such that the resistance to gas flow in the conduits between the passages 14, 15 is greater than that between the passage 14 and the heating-zone. Pockets 17, which abruptly decrease to the normal oval crosssection of the conduits, or cross partitions, may be provided to promote the formation of eddy currents, and the distance between these pockets may increase towards the heating-zone 1. The upper ends of the conduits are flared as shown at 18, and additional connecting passages, of smaller cross-section than the conduits, may be provided.