baber/WOPTO huggingface dataset:
Patent GB-471601-A (GB)
Title: Improvements in spring assemblies for seating and the like
IPC: A47C23/05
Filed: 1936-03-16
Abstract: 471,601. Spring upholstery. ELSON & ROBBINS, Ltd., and MILLWARD, S. W. March 16, 1936, No. 7815. [Class 52 (iv)] Upholstery springs are mounted on plates 2 interconnected by tension springs 3 and connected at one or both ends of the assembly to the surrounding frame by additional tension springs 7. The plates may be interconnected by transverse spacing strips 10, 11 and the tension springs are stretched when mounted so as to exert resistance to initial depression of the assembly when in use.
Patent GB-1278207-A (GB)
Title: Improvements trlating to the extracton of tin from its ores
Inventor: MARSHALL JAMES EDWARD FREDERIC
IPC: C22B25/00
Filed: 1970-02-18
Abstract: 1278207 Extraction of Sn from ores WOODALL-DUCKHAM Ltd 19 April 1971 [18 Feb 1970] 7825/70 Heading C7D Sn is extracted from tin ores, particularly lode ones, by oxidize roasting and then reducing in a controlled moisture content gas reducing atmosphere, leaching in dilute HC1 or depositing Sn from the liquor by displacement with a metal above Sn in the electro-chemical series. Minus 10 mesh ground one is oxidize roasted at 700-750C., reduced at the same temperature range in moist H 2  and then leached in dilute HCl. If the ore contains iron oxides, bistite, mica, chlorite and tourmaline intimately associated with the cassiterite magnetic separation may be applied to the raw ore, roasted ore or reduced product. The liquor from the leaching step may be contacted with metallic Fe to extract the Cu and the liquor is then contacted with Al to deposit the Sn. The residual chloride liquor is hydrolysed with a spray roaster to receive HCl for reuse in the leaching step.
Patent GB-526262-A (GB)
Title: Improvements in self-balancing potentiometer systems for controlling, indicating and recording variable conditions
IPC: G05D23/22
Filed: 1939-03-10
Abstract: 526,262. Electric systems for correspondence control. MEYER, L. W. (Lewis Engineering Co. and Mrs. Johnson, M. J.). March 10, 1939, No. 7881. [Class 40 (i)] Relates to an automatic indicating recording or controlling system, as for furnace temperature tested by a thermo-couple, involving a slide wire potentiometer automatically balanced as against the thermo-couple, by a reversible electric motor and galvanometer. The motor is controlled by thermionic devices selectively rendered operative by a single light-sensitive cell which is illuminated upon deflection of the galvanometer by a beam passing through a shutter driven synchronously with an A.C. energizing the thermionic devices. The slide wire control 26 may be adjusted by a motor 32, having a field winding constantly energized by A.C., a squirrel cage rotor and pole shading windings 35, 36. The windings 35, 36 are connected to opposed positions of a transformer winding 40 which is inductively coupled to the anode circuits of two thermionic devices 50, 52. The grids of the latter are connected together in a circuit by which they are normally biassed to cut-off potential and a light-sensitive cell 74 is connected so as to raise their potential when it is activated. Light from a source 69 is reflected by the galvanometer mirror through one or other of two pairs of apertures at different radii in a disc 83 rotated by a synchronous motor 84 fed from the same A.C. as the motor 32, so that the cell 74 is intermittently illuminated during opposite phases according to the sense of the galvanometer deflection. Thus only that thermionic device is activated which will cause motion of the motor 32 in a correcting sense : this motion is continuous. In a modification, a vane, carried by a reed vibrated by a magnet carrying a coil fed by the A.C., co-operates with two apertures in the path of the deflected beam to cause a similar operation. The lightsensitive cell may be of the emissive type with a circuit shown in Fig. 1, or of the conductive type, with a suitably modified circuit.
Patent GB-913046-A (GB)
Title: Membranes for use in purifying solutions of alkali metal hydroxides by dialysis
IPC: B01D69/02
Filed: 1959-03-06
Abstract: Alkali lyes may be completely freed from sodium chloride and/or sodium sulphate, by dialysis using an ion-exchange membrane composed of a copolymer of styrene, styrene sulphonic acid, divinyl benzene and optionally acrylic acid.  The membrane may be reinforced with fabric, or metal or glass fibres.ALSO:An ion-exchange membrane is composed of a copolymer of styrene, styrene sulphonic acid, divinyl benzene and optionally acrylic acid.  The copolymer may be obtained by using a styrene sulphonic acid ester (e.g. propyl ester) with the ester groups being hydrolysed (e.g. with Na2CO3) after polymerization. Polymerization may be effected by mixing the monomers with a free-radical initiator (e.g. benzoyl peroxide) and then heating between two rubber-sealed sheets of glass.  The membrane may be reinforced with fabric, or metal or glass fibres.
Patent GB-846420-A (GB)
Title: An improved streamlined weather protector for attachment to a motor cycle
Inventor: THOMAS REGINALD EDWARD
IPC: B62J15/00
Filed: 1958-03-13
Abstract: 846,420. Weather shields for motor cycles; mudguards. ENFIELD CYCLE CO. Ltd. March 9, 1959 [March 13, 1958], No. 8026/58. Class 136(1). A streamlined weather protector for attachment to a motor cycle consists of a forward shield section which comprises spaced leg protecting sections a<SP>3</SP> united by an upper straddling section a which has a rounded aperture a<SP>6</SP> accommodating a tubular extension b<SP>1</SP> on the top side of the mudguard b permitting the latter to rotate in relation to the straddling section. The lower parts of the leg shields a<SP>3</SP> are joined by a portion a<SP>4</SP> provided with a channel which may engage the forward down tube of the motor cycle. The motor cycle head may also. engage in the rounded aperture a<SP>6</SP>.
Patent GB-1499051-A (GB)
Title: Process for the decontamination of the off-gases of internal combustion engines
IPC: B01J23/755
Filed: 1976-03-01
Abstract: In a process for purifying the exhaust gases of combustion engines, operated at least partly with methanol, by oxidation with oxygen-containing gases, the exhaust gases are reacted with excess oxygen at temperatures above 100 DEG C in the presence of a supported catalyst which is composed of at least two of the aluminates of copper, manganese, nickel and of cerium as active constituents and of pure aluminium oxide as support. To produce this supported catalyst, preferably pure aluminium oxide is pressed with addition of graphite to give mouldings, the graphite is burned off at temperatures of 600 to 700 DEG C, the mouldings are calcined at 1000 to 1200 DEG C, the calcined mouldings are impregnated with at least two of the nitrates of copper and/or of manganese and/or of nickel and/or of cerium in aqueous solution, the metal nitrates drawn into the mouldings are decomposed at temperatures of 350 to 500 DEG C and the metal-oxide-containing mouldings are then calcined at temperatures of 800 to 1100 DEG C.
Patent GB-1191561-A (GB)
Title: Coin Stacking Apparatus for a Coin Wrapping Machine.
IPC: G07D9/06
Filed: 1968-02-19
Abstract: 1,191,561. Coin stacking apparatus. TENSHIN KAHEI KEISANKI K.K. 19 Feb., 1968 [25 Feb., 1967], No. 8044/68. Heading B8C. A coin stacking apparatus comprises open ended cylinders of different diameters for receiving various coins and movable selectively to a stacking position, a retractible plate to close the bottom end of the cylinder located in the stacking position and means for vibrating the cylinders and plate during filling. Each cylinder 12 is comprised of halves 12a, 12b forced together by the bias of a spring 14 and is situated during stacking over the baseplate 21 which is retractible in the plane of the cylinder end using a solenoid (22), Fig. 3 (not shown), lever 23 and link 24 arrangement. The cylinders are mounted by pivot pins 13 on plates 10, 10<SP>1</SP> secured to a shaft 7 which is rotatable to bring the selected cylinder to the stacking position. A motor 30 vibrates the shaft 7 through a lever 32, a shaft 33 and a rocking arm 9 the lower end of the shaft 33 being mounted on this arm. Also a block 27 is mounted at the extremity of the arm and interacts with a roller 29 on a pivoted member 20 which carries the bottom closure plate 21. This plate is thus also vibrated. For removal of the stack the halves of the cylinder are forced apart by pushing an abutment 25a of arm 25 between projections 15a, 15b, one secured to each of the halves. The device may be used in a coin wrapping apparatus as described in Specifications 1,133,699, 1,133,700, 1,168,003 and 1,177,669.
Patent GB-282249-A (GB)
IPC: B29C43/58
Filed: 1927-03-23
Abstract: 282,249. Herstorff Masschinenbau- Anstalt Ges., R. Dec. 23, 1926, [Convention date]. Stationary - mould machines.-In 'hydraulic presses for moulding rubber, artificial born, gramophone records &c., the cam shaft controlling the various operations of the press is driven through a variablethrow crank whereby the duration of the operations may be adjusted. As shown, a driving-shaft a is furnished with a disc c carrying a radially-adjustable crank pin e connected through a rod f to a pawl lever h carrying a pawl i engaging a ratchet g on the cam shaft k. The press is furnished with a pivoted head o locked by a bolt r urged to locking position by a spring s and adapted to be retracted by a chain &c. q connected to the piston of a pivoted auxiliary cylinder v. Operation of the cylinder v first unlocks the bolt and then raises the head. The shaft k is furnished with interchangeable, preferably split, cams for controlling the main and auxiliary press cylinders and also heating and cooling fluids and is also fitted with a disc furnished with a projection adapted to engage a lever on a shaft m<1> to disengage a clutch controlling the shaft a.
Patent GB-1093952-A (GB)
Title: Improvements in or relating to continuous rods of fibrous materials, particularly cut tobacco
Inventor: WILDE FRIEDRICH
IPC: A24C5/18
Filed: 1966-02-24
Abstract: 1,093,952. Feeding tobacco. TABAKUND INDUSTRIEMASCHINEN DRESDEN VEB. Feb. 24, 1966, No. 8062/66. Heading A2C. A continuous tobacco rod is formed by entraining cut tobacco in a pipe 1 in an air stream issuing from a nozzle 2 and subjecting it to an annular jet of air in the opposite direction issuing from a nozzle 4. The nozzle 4 is formed by an inner jacket which also forms a nozzle 3 through which the tobacco rod passes, and an outer jacket 5. The inner jacket or the whole of the nozzle 4 may be adjustable axially so as to vary the effect of the jet issuing therefrom. The tobacco separated from the main stream by the jet from the nozzle 4 is collected in a chamber 7, discharged through an opening 8, and fed back to pipe 1.
Patent GB-766227-A (GB)
Title: Machine for removing the peel from vegetables or fruit
IPC: A47J17/18
Filed: 1955-03-21
Abstract: 766,227. Peeling vegetables &c. KAY, W. E., and KAY, A. W. March 21, 1955, No. 8125/55. Class 28(2) Potatoes &c. in a hopper 9 on the side of the container 1 are charged into the container by raising a slide or a hinged door 14. Rotating a water turbine 2 then rotates a bottom disc 5 surfaced by a flat abrasive whereby the potatoes are churned round against the abrasive surface of a conical or bowl shaped stationary surround 6. The disc 5 and the surround 6 have inturned flange edges over which replacement sheets of abrasive are pressed into holding position. Discharge of the peeled potatoes is obtained by swinging aside the hopper about its hinges (19 Fig. 4 not shown) and then swinging up or sliding up the door 14 to allow the potatoes to fall out through the aperture 10.
Patent GB-1057932-A (GB)
Title: Improvements in or relating to fluid control valves
Inventor: BREDTSCHNEIDER KURT BRUNO
IPC: F16K27/08
Filed: 1964-02-27
Abstract: 1,057,932. Valves. CRANE Ltd. Feb. 27, 1964, No. 8196/64. Heading F2V. A stuffing-box construction for a fluid control valve having a body 1 and a valve stem 6 formed with a screw-threaded portion 21, the plain cylindrical portion comprises a screw-threaded yoke bush or cap 18 in which the screw-threaded stem portion 21 is engaged for reciprocally moving the stem by rotation thereof to open and close the valve, the stuffing-box which is fixed in relation to the body, for further screw-threads 17 in fixed relation to the body and having the same lead as the screw-thread 21 on the valve stem, and a gland member for the stuffing-box having in association therewith a screw-thread engaging said further screw-thread 17, whereby the gland member may be tightened or loosened without altering the position of the valve stem. In Fig. 1, the closure member 4 is opened and closed by raising and lowering stem 6, a disc stem ring 5 seating, in the valve open position, on the bottom of a yoke 11 to seal entry into the passage for the valve stem. The stuffing 13 in the stuffing-box is compressed by the inner surface of a gland at the bottom of a yoke bush 18. The yoke bush 18 can be turned as a result of the provision of flat faces at 30 and since the threads 17 and 21 have the same lead, the turning will not move the valve stem. The yoke bush can be locked by a screw 22 in a hub 16 or alternatively this hub may be as a split ring with a bolt joining the ends of the open arms. The packing can thus be removed without affecting the valve position. In an embodiment shown in Fig. 3, the bottom portion of the yoke 18 may be replaced by a separate gland member in one piece or two halves, whilst the bottom yoke 11 may be made integral with the valve body 1. The threads 29 are made to engage a yoke 27 and by turning this yoke, the gland member or members may be made to tighten or loosen, turning around the stem thread 21 of the same lead as thread 29, so that the valve is not moved. In Fig. 8, the upper part of Fig. 3 is replaced by a threaded cap 55 and a lock-nut 63, threads 57 being of the same leads as thread 21 so that turning of the cap 55 tightens or loosens the packing without moving the valve.
Patent GB-797280-A (GB)
Title: Oxidation of organic compounds
IPC: C07C63/00
Filed: 1955-03-21
Abstract: Organic compounds containing at least one carbon-to-hydrogen bond and at least one carbon-to-carbon bond are oxidized by heating with (a) sulphuric acid or a water-soluble sulphate, (b) sulphur, and (c) water to above 400 DEG  F. and below the critical temperature of water, under pressure sufficient to maintain a part of the water in liquid phase, the mol. ratio of sulphuric acid or sulphate to the organic compound being in excess of 1:1 and the mol. ratio of the organic compound to the sulphur being at least 2:1.  The compounds may be hydrocarbons, aldehydes, ketones, esters, ethers, organic acids, amines, amides, or heterocyclic compounds, or partially oxidized hydrocarbons such as alkyl benzene carboxylic acids.  The sulphate may be ammonium, alkali metal, alkaline earth metal, or alkali or alkaline earth metal hydrogen sulphate.  The temperature may be 400-700 DEG  F. and preferably 450-650 DEG  F.  Pressures may range from 500-5000 p.s.i.g. and commonly 1500-3500 p.s.i.g.  The reaction may be batchwise or continuous and a conventional assemblage of apparatus as shown.  An example of the oxidation of xylene with ammonium sulphate, sulphur and water is given, the product being a mixture of isophthalic and terephthalic acids and the amides thereof. Reference is also made to the oxidation of acetophenone, benzyl alcohol, n-butane, n-butanol, cumene, cyclohexanone, m-cymene, 2,3-dimethyl butane, diisobutylene, dodecene, ethylene, hemimellitene, n-hexane, mesitylene, sucrose, tetrahydrofurfuryl alcohol, toluene, ammonium toluate, and propylene, giving, besides carbon dioxide, benzoic acid, acetic acid, C2-C4-aliphatic acids, phenol, isophthalic acid, acid, pivalic acid, phthalic acid, trimesic acid, glutaric acid terephthalic acid, propionic and acetic acids.
Patent GB-164541-A (GB)
Title: Improvements in and relating to safety devices for motor cars and other motor road veehicles
IPC: B60R25/022
Filed: 1920-03-19
Abstract: 164,541. Rusbridge, W. H., and Nunn, L. S. March 19, 1920. Guarding against unauthorized use.- A com- 'bination lock for locking the steering-wheel of a motor-vehicle to its steering-column, for steering, or for releasing it therefrom for preventing unauthorized use of the vehicle, comprises looking bolts 4, 5, secured to a cap 6, and passed through the boss 2 of the steering-wheel. Grooves 8 in the bolt 5, and a cut-away portion 7 in the bolt 4, permit free rotation of locking-rings 1; either when the bolts are in the position in which their lower ends pass through the lower end of a liner 17 and enter a flange 12 on the steering-column, cr when in the position in which their ends are retracted from the flange, and movement of the bolts from one position to the other can only take place when the rings are so placed that notches 9 in their flanges permit the passage of the bolts. The liner 17 forms a bearing for the rings whilst a set screw 16, screwed into it, projects into a slot 15 in the bolt 5 thereby limiting its movement. A set screw 18 closes the hole through which the set screw 16 is inserted.
Patent GB-619679-A (GB)
Title: Improvements in or relating to piezoelectric vibrator
IPC: B06B1/06
Filed: 1946-03-18
Abstract: 619,679. Sound transmitting and receiving devices. SUBMARINE SIGNAL CO. March 18, 1946, No. 8299. Convention date, Oct. 8, 1941. [Class 40 (iv)] A piezo-electric vibrator comprises an elongated element 1 having mounted in its sides piezo-electric crystals 10, 11, 12 and 13, successive crystals along the vibrator at any instant of operation being arranged to vibrate in opposite phase by suitable arrangement of the electrodes or crystals. In the arrangement shown in Fig. 8, the oscillator 651 imparts opposing polarity to similarly disposed pairs of crystals which thus vibrate in opposed phase. In the arrangement shown in Fig. 9, the oscillator supplies a similar phase of current to each crystal pair, but one pair of crystals is physically reversed with respect to the other. The electrodes on the crystals are extended by ribbons 22.to bus-wires 23 which are connected to a bus-bar 30<SP>1</SP>. All the units are mounted in grooves in a plate 2 which is provided with a thin section 3 so that it may vibrate piston manner and communicate its vibration to water that is in contact with plate 2. In modifications, the units 1 may be lengthened to contain a greater number of vibrating crystals and they may be secured at both top and bottom to vibrating diaphragms. Specifications 595,154 and 597,421 are referred to.
Patent GB-1124791-A (GB)
Title: Improvements in retractible suspensions for vehicle wheels
IPC: B60G17/033
Filed: 1965-02-26
Abstract: 1,124,791. Road vehicle suspension. M. R. GREEN. 28 Jan., 1966 [26 Feb., 1965], No. 8369/65. Heading B7D. In suspension means for enabling the frame of a trailer or front-wheel-drive vehicle to be lowered to the ground during loading and unloading, tandem wheels 2, 3 are carried by arms 5 extending in opposite directions from respective transverse pivots 6, levers 8 coupled to the arms 5 are connected by an hydraulic ram 15 operable to rotate the arms 5 about the pivots 6, and means are provided for locking the levers 8 in the position corresponding to the normal running position of the arms 5. To permit resilient deflection of the arms 5 during running, the levers 8 are coupled to the arms 5 by oleo-pneumatic shock absorbers 12 as shown, or in another embodiment (Fig. 4, not shown), the levers 8 are formed by leaf springs coupled to the arms by rigid struts. The suspension is secured in the running position by a hooked latch 18 actuated by an hydraulic ram 18b, or by latch means (Fig. 3, not shown), arranged to prevent displacement of the piston in the ram 15, or by a valve preventing displacement of the fluid in the ram. Torsion bars (not shown) connect the arms 5 on opposite sides of the vehicle. The ram 15 is controlled by an hydraulic circuit including a manual control valve for admitting to the ram fluid supplied by a pump from a reservoir.
Patent GB-713990-A (GB)
Title: Improvements in or relating to processes for making printing plates
IPC: B41N1/12
Filed: 1952-04-02
Abstract: 713,990. Printing-surfaces. STRABA HANDELS-AKT.-GES. April 2, 1952 [April 3, 1951], No. 8429/52. Class 100 (2) A process for making printing plates includes mixing liquid resins of the type which harden at normal temperature and pressure with catalysers and accelerators, casting the mixture upon matrices and permitting the cast liquid to harden from within outwardly by polymerization and cross-linking. The liquid resins suitable are unsaturated polyester resins produced by combination of unsaturated polybasic organic acids or their anhydrides with monovalent unsaturated, or bivalent saturated alcohols, and with unsaturated polymerizable organic compounds, Examples of the acids are maleic or fumaric acids, of the alcohols allyl-alcohol, glycol, or poly-glycol, and of polymerizable combinations styrene, cyclo-pentadiene, or methyl methacrylate. The accelerator may be cobalt-naphthenate and the catalyst may comprise organic peroxides and hydro-peroxides, e.g. benzoyl-peroxide. The matrices may be treated with a separating agent, e g. a wax solution, so as to facilitate removal of the plate. Filters, extenders and pigments may be added to the liquid resin before casting.
Patent GB-654475-A (GB)
Title: Coated sheet materials for use in the manufacture of heat-cured laminated articles
IPC: B32B27/00
Filed: 1948-03-23
Abstract: A composition for coating fibrous sheets for the production of laminated material comprises an organic acid ester of cellulose and a partial polymer of an organic polycarboxylic acid completely esterified with an unsaturated alcohol.  The acid used to esterify the cellulose may be cyclic, acyclic, saturated or unsaturated or aromatic, e.g. acetic, chloro-acetic, propionic, butyric, valeric, caproic, stearic, 3-acetovaleric, cyclohexanoic, phthalic, tartaric, pimelic, succinic, suberic, 2-chloro-cyclohexanoic, 4-aceto-butyric, acrylic, crotonic, fumaric, orthoacetic, benzoic, 1,3-dinitrobenzoic, phenylacetic, mandelic, cinnamic, and adipic.  The partial polymer may contain 5 to 80 per cent of polymerized ester, the remainder being monomeric ester.  The weight of partial polymer may be three or more times that of the cellulose ester.  The organic polycarboxylic acid used in the production of the unsaturated ester may be saturated, unsaturated, aliphatic, alicyclic, or aromatic.  Among a large number specified are, adipic, pimelic, glutaric, succinic, tartaric, diglycollic, phthalic, and substituted phthalic acids, and naphthalene dicarboxylic acid.  The unsaturated alcohol used to esterify the acid may be any monohydric or polyhydric alcohol having an unsaturated linkage between two carbon atoms of aliphatic character, one of which carbon atoms is located not more than 4 carbon atoms away from the carbon atom bearing the hydroxyl group. Vinyl or allyl alcohols or substitution products thereof may be used, or alcohols containing a triple bond such as pentyn-3-ol-2.  Numerous other alcohols are specified including methallyl, ethallyl, crotyl, propargyl, and chloroallyl. Bis-(allyl glycollate)-phthalate may be used.  Optional additions include, a joint solvent for the two ingredients, emulsifying, granulating, and wetting agents, fillers, pigments, and a catalyst.  Suitable joint solvents are methyl acetate, ethylene dichloride, ethyl alcohol and acetone, methyl ethyl ketone, toluene, diisopropyl ketone, dibenzyl ether, ethyl lactate, nitromethane, dioxane, ethylene glycol monomethyl ether, diacetone alcohol, and n-butyl acetate.  The filler or pigment may be wood flour, paper dust, mica, granite dust, sand, titanium dioxide, lithopone, lead oxide, or zinc cyanamide.  Specification 14246/13, [Class 2 (ii)], is referred to.