baber/WOPTO huggingface dataset:
Patent GB-616323-A (GB)
Title: Loom
IPC: D03D47/00
Filed: 1946-08-06
Abstract: 616,323. Shuttleless looms. PAABO, M. Aug. 6, 1946, No. 23340. Convention date, Aug. 11, 1945. [Classes 142(i) and 142(ii)] In a vertical loom a weft thread 10- is blown by compressed air from a nozzle 24 through a warp shed 1 and is received into a funnel 35 in which a vacuum is maintained. The thread passes through tensioning discs 12, 13 to a revolving drum 17 having a retractable catch 18 operated by a cam disc 22. The loop of thread on the drum is cast off when the catch is retracted and is blown from the nozzle through the warp shed. The weft is forced between the blades of a pair of scissors 26 by a thread guide (32, Fig. 3, not shown) attached to the reed. The scissors are closed by a rotating cam engaging one of the blades. A feeler 36 at the receiving side of the shed will cause the loom to stop if the weft is not received into the funnel 35.
Patent GB-799913-A (GB)
Title: Polymers and method of preparing the same
IPC: C07D303/40
Filed: 1956-07-27
Abstract: A coating composition comprises a polymer or copolymer of an alkenyl ester of a 3,4-epoxycyclohexane carboxylic acid (see Group IV (a)), a solvent such as methyl isobutyl ketone, xylene or toluene, and a pigment such as titanium dioxide, with or without a curing agent such as a polybasic organic or inorganic acid.  The composition may be applied to surface of e.g. steel panels by dipping or spraying and heated to effect cross-linking.ALSO:Alkenyl esters of 3,4-epoxycyclohexane carboxylic acids may be polymerized alone or with a polymerizable monomeric material such as vinyl chloride, bromide, fluoride, acetate, butyrate, chloracetate, formate or caproate, acrylonitrile, methacrylonitrile, vinylidene chloride or fluoride, methyl acrylate or methacrylate, ethyl acrylate, 1,3-butadiene, isoprene, 2,3-dimethyl - 1,3 - butadiene, 1 - acetoxybutadiene, piperylene, 2-cyano-1,3-butadiene, 2-methoxy - 1,3 - butadiene, 2 - fluoro - 1,3-butadiene, acetylene or an acetylene derivative containing an acetylenic linkage, divinyl, diallyl or dimethallyl oxalate, maleate, malonate, citrate, tartrate, phthalate, isophthalate, terephthalate or naphthalene dicarboxylate, a vinyl, allyl or methallyl diether of ethylene glycol, trimethylene glycol, glycerol, mannitol or sorbitol, an acrylic or methacrylic polyester of ethylene glycol or vinyl triethoxy silane.  Alkenyl esters specified are vinyl and allyl 3,4-epoxycyclohexane carboxylate and 3,4-epoxy-6-methylcyclohexane carboxylate.  Polymerization may be effected in solution, emulsion, suspension or bulk, in the presence of a catalyst such as acetyl, benzoyl, lauroyl or benzoyl acetyl peroxide, tertiary-butyl or cumene hydroperoxide, tertiary-butyl perbenzoate or peracetate, potassium persulphate or azo bisisobutyronitrile.  In solution polymerization the solvent may be acetone, tetrahydrofuran, dimethylformamide or benzene; in emulsion polymerization the emulsifying agent may be dioctyl sodium sulphosuccinate or sodium tetradecyl sulphate; in suspension polymerization the suspension agent may be hydroxy-ethyl cellulose. The polymers may be used for the production of floor coverings, wire coatings, plastic pipe, upholstery, raincoats, surface coatings and films.  When producing a surface coating the polymer is dissolved in a solvent such as methyl isobutyl ketone, xylene or toluene with or without a curing agent such as a polybasic organic or inorganic acid and a pigment such as titanium dioxide, applied to the surface e.g. by dipping or spraying, and cross-linked by heating.
Patent GB-1458819-A (GB)
Title: Film cassettes
IPC: G03C3/00
Filed: 1973-05-16
Abstract: 1458819 Light-tight film cassette CIBAGEIGY AG 18 April 1974 [16 May 1973] 23347/73 Heading B8M A cylindrical cassette for a spool of photographic film has an exit slot formed by a pair of lips 2, 9 between which the leading edge of the film may protrude, lip 2 being an extension of the peripheral wall and lip 9 being an extension of curved member 20 which forms with the peripheral wall a light labyrinth through which the film travels from the reel to the exit slot, the surface of lip 2 which helps define the slot constituting a tangent to a circle concentric with the longitudinal axis of the cylinder, the circle having a diameter of less than 0À8 of the internal diameter of the cylindrical cassette and preferably at least 0À6 times. Preferably the cassette comprises two halves 1, 8 each having two lugs 10, 11 and 3, 4 which co-operate to lock the cassette together. Lugs 4, 11 are rounded to facilitate snapping lugs 3, 10 together. The end walls have overlapping portions and/or tongues and grooves to keep out light. The cassette halves are moulded from polystyrene, polypropylene, acrylonitrile-butadienestyrene copolymer, cellulose nitrate or cellulose acetate. The material contains 5% polytetrafluoroethylene to reduce friction and carbon black or titanium oxide plus dye to render it opaque. The surface of the light labyrinth over which the picture area of the film travels is matt and is recessed compared to the rest of the labyrinth surface. Specification 1,458,820 shows the same cassette. Its claims are directed particularly to the means for securing together and light proofing the cassette.
Patent GB-406313-A (GB)
Title: Improvements in or relating to variable speed transmission mechanism
IPC: F16H3/38
Filed: 1932-08-22
Abstract: 406,313. Change-speed gearing; facilitating changing speed. NAPIER & SON, Ltd., D., and WILKINSON, G. S., 211, Acton Vale, Acton, and SEWELL, C. W., 2, Holly Park, Finchley, both in London. Aug. 22, 1932, No. 23473. [Class 80 (ii).] Change-speed gearing suitable for vehicles of the kind comprising coaxial driving and driven shafts 43, 45 and a parallel lay shaft 48 in which changes are effected by changing the engagement of toothed wheels or claw clutches is adapted to be combined with auxiliary variable-speed gearing to synchronize revolving teeth in gear changing. To this end is provided a rotary sleeve 53 constantly driven from the driving-shaft 43, surrounding the driven shaft 45, and projecting outside the casing 42 of the main change gearing. The lay shaft 48 which is constantly driven by a pair 49, 50 from the driving-shaft may be used in addition for synchronizing some speed by means of an extension 48a also projecting outside the casing 42. The sleeve 53 is, in the arrangement shown, integral with a loose gear 52 constantly driven from a gear 51 fast on the lay shaft. First and second speeds are effected by sliding to right and left coupled pinions 58, 57 splined on the lay shaft 48 so as to bring these gears into mesh respectively with gears 55, 54 splined on the driven shaft 45. Third and fourth speeds are effected by sliding the coupled gears 55, 54 to right and left so as to bring their claw ends 62, 60, respectively, into engagement with claw clutch members 63, 61 on the gears 52 and 49. When the coupled gears 55, 54 are slid from neutral, the coupled pinions 58, 57 are moved similarly at the same time to prevent mutual engagement. Means for effecting this combined movement in combination with means for operating when and as required the auxiliary variable-speed gearing shown in Fig. 1 is described and is described and claimed in Specification 406,315. Other constructions of auxiliary variable-speed gearing described are described and claimed in Specifications 406,316 and 406,314 respectively.
Patent GB-697603-A (GB)
Title: Improvements in or relating to method of and devices for obtaining tissue from a tumour carried by a patient
IPC: A61B17/28
Filed: 1949-09-13
Abstract: 697,603. Surgical forceps. GLADSTONE, S. A. Sept. 13, 1949 [Oct. 6, 1948; Dec. 29, 1948], Nos. 23586/49 and 23587/49. Class 81 (ii). A forceps by means of which a piece of sponge material may be rubbed on a tumour surface to pick up tissue for pathological examination, comprises co-operating long and short jaws, 7, 6 respectively, which grip the sponge so that the greater part of its surface on one side is free while the opposite side is backed up by the long jaw. The outer face of the shorter jaw may be serrated or roughened to facilitate abrasion of the surface and the gripping ends of the jaws may be set ai an angle to the main axis of the forceps to make manipulation easier.
Patent GB-1369927-A (GB)
Title: Use of alkoxylated aminomethylphenols in the production of rege nerated cellulose
IPC: D01F2/10
Filed: 1972-05-19
Abstract: 1369927 Phenol derivatives MO OCH DOMSJO AB 19 May 1972 [19 May 1971] 23744/72 Heading C2C [Also in Division C3] Alkoxylated aminophenols of the formula wherein either one of the substituents X 1 , X 2  and X 3  denotes C 5-12  alkyl or two of said substituents each denote C 1-4  alkyl, and the remaining two or one respectively of said substituents denote groups of the formulµ wherein p 1 , p 2 , p 3 , p 4 , p 5 , p 6 , p 7 , p 8  and p 9  are each integers of from 1 to 30 such that the total number of ethylene oxide units per molecule is 10 to 70, q 1 , q 2 , q 3 , q 4 , q 5 , q 6 , q 7 , q 8  and q 9  are each 0, 1 or 2 such that the total number of propylene oxide units per molecule is 0 to 7, and n 1 , n 2 , n 3 , n 4 , n 5 , n 6 , n 7 , n 8 , n 9  and n 10  are each 1, 2, 3 or 4, are prepared by reacting together a phenol of the formula  formaldehyde and ammonia or a suitable amine to form a Mannich base intermediate which is subsequently ethoxylated and optionally further propoxylated. Examples describe the preparation of 2,6-bis-(diethanolaminomethyl)-4-nonylphenol and its adduct with 30 moles of ethylene oxide and optionally 5 moles of propylene oxide; 2,6 - bis - (dipropanolaminomethyl) - 4 - nonylphenol and its adduct with 35 moles of ethylene oxide; 2-(diethanolaminomethyl)-4,6-dimethylphenol and its adduct with 20 moles of ethylene oxide; 2,6 - bis - (ethanolaminoethylaminomethyl) - 4 - nonylphenol and its adduct with 20 moles of ethylene oxide; 2,6-bis-(ethanolaminomethyl)-4-nonylphenol and its adduct with 40 moles of ethylene oxide; and 2,6-bis- (aminomethyl)-4-nonylphenol and its adduct with 35 moles of ethylene oxide.
Patent GB-952982-A (GB)
Title: Improvements in or relating to composite mechanical constant-speed drives
Inventor: MOSS NORMAN
IPC: F16H37/00
Filed: 1959-07-10
Abstract: 952,982. Driving generators. PLESSEY CO. Ltd. May 27, 1960 [July 10, 1959; Nov. 11, 1959; Feb. 18, 1960], Nos. 23756/59, 38324/59 and 5762/60. Heading H2A. [Also in Divisions F1 and F2] Constant speed of an electric alternator 3 driven through variable ratio planet gearing 4 by a variable input 1 is obtained by speed responsive control of a fluid motor 13 which controls the ratio of the variable gear 4. The fluid motor 13 may be driven in reverse for starting the prime mover. Variations in output speed are sensed by a governor 16 which may be of the type described in U.S.A. Specification 3,037,353 and which operates a valve 18 in the delivery 21 of, as shown, a Rootes' type motor 13 which drives or is driven by a reaction planet carrier 12 of the planet gear, to permit it to run in either direction at the varying speeds necessary to result in constant output speed as the input varies. The gear train comprises input and output suns 5, 6 which mesh stepped planets 9, 10 the reaction carrier 12 of which is geared to the output shaft of the motor 13. In operation when the output speed is low the valve 18 moves left to throttle pressure air from an engine compressor bleed air line 20 to the motor input line 21, and the pressure air drives the motor 13 and planet carrier 12 in the direction shown with consequential increase of output speed. When the output speed rises above the constant value the valve 18 moves right to connect the line 21 with an exhaust line 25, whereupon the reaction planet carrier 12 drives the motor 13 in reverse which latter draws air from a vent 23 and exhaust it through the lines 21, 25 against a resistance produced by the throttling action of the land 24. On further increase of output speed the valve 18 connects the pressure air line 20 with an ejector line 26 which produces suction in the line 25. For starting the engine, the motor 13 is driven in reverse whilst the output sun 6 of the gear 4 is held stationary by a one-way brake 29 on the alternator shaft. As the engine is stationary the bleed air pressure is zero and a pressuresensitive plunger 32 moves down to actuate a valve 30 which closes the vent 23 and connects a pressure air line 34 to the motor 13, which air drives the motor in reverse to start the engine. For testing the engine and alternator may be driven in the correct direction by locking the gear 4 with a pin clutch 35 and driving the motor 13 in reverse. An emergency valve 37 is opened by the governor 16, if the alternator speed increases beyond a predetermined limit, to vent the pressure chamber 32 and close vent 23. Fig. 6 shows the arrangement of a constant speed alternator drive having two engines 40, 41 and a further consumer point 37 for engine bleed air (e.g. an aircraft pressurizing system). The Rootes' type air motor may (Figs. 7-11, not shown) be replaced by a vane-type motor, piston-type motor, swashplate type, gear type or helical displacement-type motor.
Patent GB-1422601-A (GB)
Title: Catalyst for the production of pyridine and 3-methyl-pyridine
IPC: C07B61/00
Filed: 1973-05-18
Abstract: 1422601 Pyridines DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 18 May 1973 [18 May 1972] 23773/73 Heading C2C [Also in Division B1] Pyridine and 3-methylpyridine are made by the vapour phase reaction of acrolein and ammonia in the presence of a catalyst comprising the elements Al, F and O and at least two of Mg, Ba, Ti, Zr, Sn, P, Sb, Ta and S in the atomic ratio Al : F : the two or more additional elements of 1000 : 10-800 : 5-200, which catalyst has been treated with O 2  at 550-1200 C. The reaction may be performed at up to 3 atm., at 300-500 C. and a contact time of 0À5-5À0 sec. in the presence of a diluent gas or vapour.
Patent GB-279604-A (GB)
Title: Improvements in and relating to firebars for furnaces and bearers therefor
IPC: F23H17/12
Filed: 1926-09-27
Abstract: 279,604. Davis, A. F. Sept. 27, 1926. Firebars and grates.-In a firebar of the kind having a perforated web with lateral tapering projections some of which act as spacing members between adjacent bars, the upper surface of the bar is convex or arched as shown at 13, Figs. 3 and 4, and may be provided with a longitudinal channel 16, Fig. 4. The web 7, Fig. 1, is provided with perforations 12 and tapering projections 8 and the ends of the bar have lateral gaps 21 and central vertical apertures for the passage of air. As shown in Fig. 6, the bearers are provided with knife-edge supporting members 20 overhanging the webs which are perforated at 18.
Patent GB-852791-A (GB)
Title: Improvements in or relating to magnetic core switching devices
IPC: H03K19/16
Filed: 1958-07-24
Abstract: 852,791. Circuits employing saturable magnetic cores. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. July 24, 1958 [July 24, 1957; July 25, 1957], No. 23852/58. Class 40 (9). Two series-connected cores with excitation windings N and load windings n<SP>l</SP> have separate control windings n such that if either control winding is energized to drive its associated core into saturation, so that the excitation current cannot round the knee of the hysteresis loop, an output of one sign or the other is induced in the load circuit, but if both control windings are energized or unenergized together no output is produced. The excitation current may comprise spaced pulses of one sign or spaced alternating pulses. As applied to a storage matrix, Fig. 4, the invention is shown as a switch A associated with each core of the matrix, a winding on which core constitutes the load. Excitation current is fed to the rows cyclically and the control windings of each switch are fed by bi-stable circuits R associated with each column. The condition of the bi-stable circuits R determines the direction in which each core of the row is driven. If all the circuits R are similarly set all the cores of the row are similarly driven and produce read-out pulses on column output windings which reset the circuits R so that the information read-out may be automatically re-written.
Patent GB-151821-A (GB)
Title: Improved construction of appliance for locking steering wheels of road motor vehicles
IPC: B60R25/022
Filed: 1919-09-29
Abstract: 151,821. Marr, S. D., and Marr, R. D. Sept. 29, 1919. Guarding against unauthorized use.-The steering-wheel is locked by means of a T- shaped member 6 sliding in a box 1 carried on or formed with the steering-column. The member 6 is formed with a stop 10 and is normally pressed downwards by a spring 12. In its elevated position, the member engages the spokes or control levers and is locked by a spring bolt 19 engaging a recess 11. The bolt 19 is released by opening a door on the box, a projection on the door engaging a cranked lever 16 operating the bolt. In the case of a rotating steering- column, the device is reversed and engages a lug on the dash-board or other part of the vehicle.
Patent GB-1155206-A (GB)
Title: Packaging Method and Apparatus.
IPC: B29C65/00
Filed: 1966-05-27
Abstract: 1,155,206. Seaming non-metallic sheet material. WELDOTRON CORP. 27 May, 1966 [30 June, 1965], No. 23986/66. Heading B5K. [Also in Division B8] A machine for wrapping articles by sealing together facing web portions of thermoplastic material (see Division B8), has means to clamp the webs on either side of the sealing area and a heated element which fuses and thus seals and severs the material between the clamps. In one arrangement web portions 960, 966 are sealed between articles 1074 by jaws 1018, 1020 carried on chains 1012, 1016 and moved transversely to the latter by cam means 1060, 1062. Bars 1068 clamp the webs against surfaces 1072 of the lower jaw while a heated blade 1070 seals and severs. In another arrangement, the jaws 540, 568, Fig. 14, do not travel with the webs but are attached to opposite vertical runs of an oscillating endless chain (550), Fig. 15 (not shown), for vertical reciprocation. The end seams of the packages are formed by clamping the webs between a pair of closely spaced chains (794) (796), Figs. 17, 18 (not shown), on each side of the articles, heated wires 812, 814, Fig. 25, extending between each pair of chains above and below their gripping horizontal runs to fuse and sever the material between them. Waste margins are trapped and removed by belts (800) and pulleys (764), Fig. 18.
Patent GB-204500-A (GB)
Title: Improvements in or relating to presses for moulding plastic materials
IPC: B28B3/24
Filed: 1922-09-05
Abstract: 204,500. Withers, J. S., (Etablissements C. Candlot Soc. Anon.). Sept. 5, 1922. Hopper-and-plunger machines; heating apparatus. - In a brick press of the type in which the material is forced into a yieldable and resilient mould passage by the blow of a piston, the counter pressure is determined solelv bv the friction of the bricks against the surface of the passage. The press comprises a hopper 1 from which material is driven by a piston 2 into the compression chamber 3 of a cylinder 4, each blow of the piston forming one brick. The walls of the cylinder are provided with slots 5 and are held in position by a resilient clamping ring 6 having screws 7. The compression chamber 3 may be of uniform section or conical, as shown in Fig. 3, and the cross-sectional area of the cylinder in front of the slots may be slightly reduced. The piston may be heated to prevent adherence of material to its surface. Specification 12429/02 is referred to.
Patent GB-395182-A (GB)
Title: Improved manufacture of alkali silicates or alkali-alkaline earth silicates
IPC: C01B33/32
Filed: 1932-08-30
Abstract: <PICT:0395182/III/1> A process for the manufacture of alkali silicates or alkali-alkaline-earth silicates by treating alkali chlorides and silica and, for the production of the latter compounds, alkaline-earth compounds, heated electrically to a high temperature, with steam, is characterized in that the heat is generated in the interior of the furnace by employing the furnace contents as the heating resistance.  In the furnace shown the electrodes 1 are supplied with alternating current, and pipes 2 are provided to supply steam, preheated, if desired, into the layer A of molten silicate. Above this layer is a layer B of sand and molten alkali chloride and any additional matter, which is covered by a layer C of unmelted raw materials, the latter layer serving to condense volatilized alkali chloride.  The raw materials are fed through aperture 4, and the molten silicate and hydrochloric acid evolved escape through outlet 5 and pipe 3 respectively.  Reference is made to the production of sodium silicate and sodium-alkaline earth silicate.  In the latter case, further known additions may be made for the purpose of obtaining special kinds of glass.
Patent GB-1342165-A (GB)
Title: Process for removal of iron from titaniferous ores
IPC: C22B34/12
Filed: 1971-04-19
Abstract: 1342165 Removing Fe from Ti ores WENDELL E DUNN Inc 19 April 1971 [23 March 1970] 24279/71 Heading C1N Iron is removed from titaniferous ore by contacting a bed of the ore alternately with CO and Cl 2 , and withdrawing the gaseous chlorides of iron and other metals. The ore may be heated to 700-1150C. and fluidized by the gases, which maybe introduced at 0À19-2 feet/sec. The CO and Cl 2  may be diluted with N 2  or CO and may each be contacted with the ore for 1-30 mins. The cycle may be repeated 3-12 times. The ore may have an average particle size of at least - 20 mesh, preferably 90% - 75 mesh. The product may be cooled in CO or CH 4  and separated magnetically or by density classification, the magnetic fraction being recycled. It may be leached with water to remove Ca.
Patent GB-990054-A (GB)
Title: Regulator device for hydraulic motors
IPC: F03C1/40
Filed: 1961-07-05
Abstract: 990, 054. Fluid-pressure servomotor systems. ANDRE CITROEN S.A. July 5, 1961 [July 8, I960], No. 24321/61. Heading G3P. The swashplate 13 of an hydraulic motor 1 driving an electric generator 2 is adjusted by a servopiston 12 under the control of a piston valve 10 movable by a pressure differential applied to a pair of diaphragms 8, 9, or pistons, in response to deflection of a member 3 coating with nozzles 4, 5 and actuated in accordance with variations of the voltage, current &c. output of the generator by an electromagnet 19. The chambers 6, 7 and nozzles 4, 5 are fed through nozzles 17, 18 with the exhuast fluid from the motor the pressure of which is governed by a valve 16. The valve 10 controls the servopiston by connecting it either to the motor supply conduit or to exhaust. In a modification the nozzles 4, 5 are controlled by a member movable by a centrifugal governor driven by the hydraulic motor. Specification 990,053 is referred to.