baber/WOPTO huggingface dataset:
Patent GB-409096-A (GB)
Title: Improvements in and relating to padlocks
IPC: E05B67/10
Filed: 1933-01-19
Abstract: 409,096. Padlocks. FOX, H., and MORGAN, C., (trading as FOX, H. & J.), Century Works, Moat Street, Willenhall, Staffordshire. Jan. 19, 1933, No. 1778. [Class 44.] A padlock has pin tumbler mechanism provided with means for working an ordinary locking slide guarded by a spring lever. The locking bar g, which engages in a notch f in the hasp a, projects from the slide h which works across the back plate c on guide pegs j. A spring-controlled guard lever k is pivoted on one of the pegs and has a recess to engage the projection n on the slide h. A housing on the front of the padlock case encloses an ordinary cylinder lock ; the rear end of the lock barrel carries a disc t with a radial arm u. When the barrel is rotated by the key, the disc is rotated and the arm u operates the lever k and the slide h to move the bar g to or from its locking position.
Patent GB-611012-A (GB)
Title: Manufacture of esters of aminotriazine-formaldehyde condensation products
IPC: C08G12/44
Filed: 1943-02-03
Abstract: Esters of aminotriazine formaldehyde condensation products are prepared by heating a condensation product, containing the maximum possible number of methylol groups at least the greater part of which are etherified with an aliphatic monohydric alcohol containing 1-5 carbon atoms, with more than 1/5 mol. of an organic acid or esterifiable derivative thereof per mol. of aminotriazine.  The highly etherified product may be obtained by the process of Specifications 543,360 and 611,013.  Preferably the heating is performed under reduced pressure to facilitate removal of volatile products.  Suitable aminotriazines are melamine, melam, melem, mellon, ammelin, ammelide, formaguanamine; 2-chloro-4,6-diamino-1,3,5-triazine.  Preferred alcohols for the etherification are methyl, ethyl, propyl, butyl or amyl.  Suitable acids are fatty acids, aromatic acids, e.g. benzoic, abietic acid, colophony, or naphthenic acids.  Polybasic acids, e.g. phthalic, adipic, sebacic, or adducts of abietic acid with maleic acid may be employed.  Hydroxy fatty acids such as ricinoleic may also be used. Commercial mixtures of acids or resins containing carboxyl groups may be used, e.g. dammar resins, shellac, alkyd resins, or acid resins of the maleic acid type.  Small amounts of mineral acids may be added. The products are generally soluble in benzene, toluene, solvent naphtha, petroleum ether, turpentine, butyl acetate, butanol or benzine.  They are usually hardenable by heat or accelerators. Esters with unsaturated acids, e.g. linoleic dry in air.  In example (1) hexamethylolmelamine hexamethyl ether is heated with a variety of acids and the properties of the products are tabulated.  In example (2) hexamethylolmelamine butyl ether is heated with linoleic acid in presence of small quantities of hypophosphorous acid and triethanolamine.  In example (3) the methyl ether of a hydrophobic melamine-formaldehyde resin is heated with linoleic acid.  Example (4) describes a moulding powder prepared by mixing wood meal with a solution in tetrahydronaphthalene of an ester from sebacic acid and hexamethylol melamine hexamethyl ether, followed by drying and grinding.  In example (5) a methylolformaguanamine methyl ether is heated with stearic acid.  In example (6) the methyl ether of a melamine-formaldehyde condensation product prepared from 9 mols of formaldehyde to 1 of melamine is heated with linoleic acid. Specifications 486,519, 486,577, 562,089 and U.S.A. Specification 2,229,265 also are referred to.
Patent GB-382817-A (GB)
Title: Method of working an endless rubber band into the welts of hosiery or the like on a flat hosiery frame
IPC: D04B9/54
Filed: 1932-01-21
Abstract: 382,817. Knitting. SCHÍNFELD, P., 2B, Prinzenstrasse, Chemnitz, Germany. Jan. 21, 1932, No. 1846. [Class 74 (ii).] To enclose an endless rubber band 1 in a hosiery welt while knitting it on a flat hosiery machine, a tensioning member 2 is employed, on which the band 1 is stretched. Prior to closing the welt 5, the welt fabric is drawn between the band and its tensioning member. When the article is completed and the member 2 is removed the welt can be eased round the band until the edges approximately meet.
Patent GB-113610-A (GB)
Title: Improved Thigh Socket for Artificial Legs.
Inventor: BOULANGER ERNEST JOSEPH AIMABL
IPC: A61F2/80
Filed: 1918-02-01
Abstract: 113,610. Boulanger, E. J. A. Oct. 27, 1916, [Convention date]. Limbs, artificial. -A construction of thigh socket is described. A grooved ring a, Fig. 3, of compressed felt receives the upper end b of a thigh socket made of any suitable material such as fibroleum shaped according to a process described i n Specification 114,315 and fastened to the ring bv a thread or wire. The other end of the thigh socket receives the knee, to which it is secured bv the usual hoop b<1>. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a construction of knee joint as set forth in Specification 116,080. The knee is madd in three parts c, d, c, Fig. 5 (cancelled), the centre part of which is curved to engage the top of the shin f. The parts d and f are provided with abutments to limit the movement of the leg, a layer of leather or the like d<2> being provided on the part d. The parts c, d, e are secured together by any suitable means; and a pin g is passed through the parts c, e, and the shin f. This subject-matter does not appear in the Specification as accepted.
Patent GB-1097151-A (GB)
Title: Improvements in or relating to explosive welding
IPC: B23K20/08
Filed: 1965-01-15
Abstract: 1,097,151. Welding by pressure. DYNAMIT NOBEL A.G. Jan. 15, 1965 [Jan. 17, 1964], No. 2014/65. Heading B3R. In explosively welding metal plates, the plates are superposed in spaced relationship, a layer of explosive is disposed on one plate to have a thickness at a position on the periphery of the explosive most remote from the position on the periphery of the explosive at which it is to be detonated which is from 50-70% of the height of the surface of the layer above the one plate at the ignition position and a thickness in marginal strips extending along the edges of the explosive layer adjacent the ignition position which is from 5-20% less than the height of the surface of the layer above the one plate at the ignition position and the explosive is detonated. The explosive may be detonated at a corner or at an edge, when at a corner the plates may be square, are in parallel or nonparallel arrangement and spacers are all welded to the plate remote from the plate carrying the explosive and when at an edge the plates are non-parallel and spacers are welded to the plate not carrying the explosive at a position remote from the ignition edge but are not welded at the other positions. The spacers, of metal, may each be in the form of a right angled triangle and the plate carrying the explosive rests on the hypotenuse of the triangle and slides down after detonation. The explosive may be in sheet, powder or plastic form and the plates may be of corrosion resistant steels, chrome-nickel steels, titanium or tantalum steels, lead, copper, aluminium and gold, silver or copper-nickel alloy on brass or copperzinc alloy. In an example a 20 mm. thick rectangular chromium-nickel steel plate and a 200 mm. thick rectangular boiler plate are positioned by metal triangular spacers arranged around the periphery of the plates to be spaced by 3 mm. at one pair of edges with the spacing increasing to 20 mm. at the opposite pair of edges. PETN explosive is distributed on one of the plates to have a height of 80 mm. above the chromium-nickel steel plate at the ignition edge adjacent the closely spaced edges, 50 mm. at the opposite edges and 70 mm. along each marginal strip between the mentioned edges. The explosive is ignited to weld the plates together. Two metal plates 1, 2 are superposed in oblique spaced relationship by separate steel spacers 3 (only one of which is shown) around the periphery of the plates and the explosive 4 is disposed on plate 1 to be detonated by edge ignition along edge 5 by a fuse 6 and an igniting explosive 6a. The spacers are welded to the plate 2 along the edge 2b. The height above plate 1 of the surface of the explosive at edge 9 is 50-70% of the height of the explosive surface at edge 5 and the height above plate 1 of the surface of the explosive in marginal strips along the edges between edges 5 and 9 is from 5-20% less than the height at edge 5. The central surface of the explosive may be planar 10 or parabolic 11.
Patent GB-1469353-A (GB)
Title: Roller assemblies for a roller train
IPC: F16C13/00
Filed: 1975-01-17
Abstract: 1469353 Rollers KARL STUMPF KG 17 Jan 1975 [30 March 1974] 2025/75 Heading F2U A conveyer roller comprises a cylindrical tube 1 mounted for rotation on a stationary shaft 8 by means of bearing inserts 20, 30 having a collar stop 22, 32, and conical roller sections 2, 2<SP>1</SP>, 2<SP>11</SP> mounted end-to-end on the cylindrical tube. The bearing inserts 20, 30 are an interference fit in the cylindrical tube 1, are mounted on the shaft 8 by ball bearings, one of the bearing inserts being formed with a driving pulley 35. A spacer 33 is provided at one end and the end of one conical roller section engages a chamfer of the adjacent section.
Patent GB-679117-A (GB)
Title: Improvements in and relating to high potential coils
IPC: H01F41/10
Filed: 1949-01-25
Abstract: 679,117. Electric coils; transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 25, 1949 [Jan. 26, 1948], No. 2036/49. Drawings to Specification. Classes 35 and 38 (ii). A multi-layer coil for use in radio transformers and capable of withstanding high potential surges is insulated with polyethylene, by applying between each layer a single strip and on the coil former and around the finishing layer a plurality of strips of solid polyethylene allowing a substantial portion of each strip to extend longitudinally of the layers, the assembly is then surrounded with a mould forming heatresisting adhesive tape and heated for about 20 minutes at a temperature of about 155‹ C. and until the polyethylene becomes viscous and coalesces within the mould so as to form a solid mass when cool. The lead wires which may extend from the adhesive tape may be surrounded by polyethylene tubes..
Patent GB-382146-A (GB)
Title: Improvements in or relating to the treatment of zinciferous solutions having a ferrous iron content
IPC: C01G9/00
Filed: 1932-01-23
Abstract: <PICT:0382146/III/1> Iron is precipitated from zinciferous solutions at ordinary temperature in the form of ferroso-ferric oxide by adding an alkaline-earth carbonate, such as calcium or barium carbonate, and blowing in air in a very fine state of division, the flow of air through the solution being retarded and its fine state of division being maintained throughout the solution.  As shown, the solution is treated in a tank 1 containing a number of superposed perforated trays or sieves 7.  Compressed air from a pipe 2 and a mixture of ground alkaline-earth carbonate and solution from a pipe 3 are introduced through pipes 4, 5 to atomizers 6. Rotating vanes may be provided to sweep the surface of the trays 7 and the carbonate-solution mixture may be introduced separately from the air, for instance between the trays.  After reaction is complete the precipitate-laden solution is discharged to filters or decantation vats through pipe 8.  Precipitation of iron as ferroso-ferric oxide may be favoured by addition of sodium sulphate.  In treating solutions obtained from chlorinated copper pyrites from which copper has been removed by cementation and in which the zinc is present as chloride and sulphate and sodium sulphate is present also, the ferroso-ferric oxide precipitate is admixed with alkaline-earth metal sulphate.  The residual zinc salt solution may be treated for removal of manganese by boiling with or without the addition of alkali hypochlorite and alkaline-earth carbonate, and sodium sulphate be then removed by crystallization.
Patent GB-347118-A (GB)
Title: Improvements in or relating to turbines driven by the waste gases of reciprocating internal combustion engines
IPC: F02B37/22
Filed: 1930-01-21
Abstract: 347,118. Motor power plant. REUGE, H., St. Croix, Vaud, Switzerland. Jan. 21, 1930, No. 2141. Convention date, March 15, 1929. [Class 110 (iii).] Relates to plant in which a turbine is driven by the exhaust gases of a reciprocating internalcombustion engine. The Figure shows a two-stroke cycle double-acting internal-combustion engine 3 having a single exhaust port 4 communicating with two exhaust pipes leading to the nozzle-ring 12 of a turbine 14. Cam-operated valves 8, 9 and hand-operated valves 10, 11 are provided. The actuation of the valve 8 is controlled by a device 24 responsive to the pressure in the induction pipe 16. The exhaust turbine drives the charging compresser and compressed air is supplied by a pipe 20. The pipes 16, 20 may be connected together.
Patent GB-255412-A (GB)
Title: Improvements relating to the opening of cotton and to the clearing or removal of dust therefrom
IPC: D01G9/00
Filed: 1926-01-25
Abstract: 255,412. Debelvalet, L. July 15, 1925, [Convention date]. Feeding openers &c.- The induced air in the hopper of a cotton opener is heated by radiators 2, 3 whereby the cotton, which is fed into the hopper on a lattice 1, is caused to expand and to resume more or less its original non-compressed condition. The cotton is carried upwards on a lattice 4, any surplus being thrown back by a level. ling roller 5 coacting with a clearing roller 6. This surplus cotton is received on a perforated rotating drum 7 containing a fan 30, the fixed casing of which is divided by fins 31 into annular zones 32, 33 connected respectively to the suction and delivery sides of the fan 30. In passing over the zone 32, the cotton is subject to the action of air drawn in by the fan 30. On continued rotation, it is discharged by air passing through zone 33 on to the lattice 1. The cotton on the lattice 4 is detached by a beater 9 and projected on to a grid 10, and is drawn by fans 11 on to a perforated drum 12, which encloses a second sheet-metal drum 15 having an opening 17 through which the suction of the fans 11 is effected. The cotton is delivered by a roller 18 to the scutcher, while dust &c. is withdrawn through the drum 12 and flues 13 to pipes 14. An outlet 19 connected by a duct 20 to the flues 13 is also provided. The output of the machine is automatically regulated by a shutter 21 or when the lap rod of the scutcher is full.
Patent GB-1529862-A (GB)
Title: Proximity switch
IPC: H03K17/96
Filed: 1976-01-19
Abstract: 1529862 Proximity switches THORN DOMESTIC APPLIANCES (ELECTRICAL) Ltd 19 Jan 1976 [17 Jan 1975] 2150/75 Heading G1N [ Also in Division H2]  A touch or proximity switch includes an insulating plate 1 on one face of which are spaced electrodes 2, 4 such that when a finger touches or comes into proximity with the other face of the plate a signal capacitively coupled between the electrodes is changed. A 50KHZ signal from oscillator 18 is applied to square electrode 2a, 2b surrounding an earthed screen electrode and the second electrode 4, the A.C. signal being capacitively coupled to electrode 4 connected to circuit 5 which provides a positive D.C. voltage proportional to the alternating voltage at electrode 4. A circuit 11 is also provided to convert the alternating voltage supplied from oscillator 18 to a negative D.C. voltage. The two D.C. voltages are summed by resistors 16, 17 and potentiometer 15 is adjusted so that in the absence of an operation finger at the other face of the plate the voltage at the junction of 16, 17 is zero. When the operator touches the other face the capacitive coupling between the electrodes is reduced and the voltage at electrode 4 is also reduced resulting in the output becoming negative. By reversing the polarity of the diodes a positive output can be obtained when the plate is touched. In an alternative arrangement a further electrode may be provided on the other face of the plate, Fig. 4 (not shown). A plurality of detectors may be used with a single oscillator and circuit 11. Three proximity switches 19, 20, 21 may be used to operate a power controller for an electric cooker, Fig. 3, the switches being connected to inputs 23, 24, 25 of counter 22, 23 causing the counter to count upwards, 24 causing it to count downwards and 25 resetting it. The counter output is applied to a circuit 28 which gates triac 29, controlling heating element 31, on at zero cross-over points of the mains waveform and may be a D/A converter the D.C. output of which is compared with a ramp voltage to give an output pulse of length proportional to the count stored and which controls the number of cycles for which the triac is gated on. Alternatively circuit 28 may be digital in which the count is compared with the output of a further counter to produce output pulses whose length corresponds to the count stored by counter 22. Lines 33 are also connected to a display 32 which indicates the count stored by counter 22. In operation if the count displayed corresponds to too low a heating the switch 19 is touched and then removed when the displayed count is the required value. Similarly if the count displayed is too high switch 20 is touched.
Patent GB-584835-A (GB)
Title: Improvements relating to pannier bags for cycles
IPC: B62J9/00
Filed: 1945-01-29
Abstract: 584,835. Luggage attachments. ASHBY & SONS, Ltd., F., and ASHBY, F. C. Jan. 29, 1945, No. 2204. [Class 136 (i)] A cycle carrier has a pair of pannier bags 1 connected together at or near the top by one or more members 6 which extend across and are supported by the carrier platform 3, attachment plates 13, projecting below the base of each bag being provided, each plate having a slot or aperture 16 engaging with 'a bolt 12 in a plate 11 attached to the carrier stay 4. To draw the back of the bag taut, the plates 13 are pulled down as far as possible by their curled lower ends 17 and held by nuts 20 screwed on to the bolts 12, co-operating serrations 18, 19 in the plates 13, 11 providing positive locking means.
Patent GB-1409973-A (GB)
Title: Cine film projectors
IPC: G03B1/22
Filed: 1973-01-16
Abstract: 1409973 Cine film projectors MARCONI CO Ltd 11 Dec 1973 [16 Jan 1973] 2214/73 Heading G2E A cine film projector has an intermittent film transport mechanism comprising a claw 1 mounted on a shuttle 2 which is moved 'up and down' by a constant diameter cam 3 and 'in and out' by a slider 13, 14 engaging the shuttle at 11, 12 and co-operating with a face cam 5, the claw being prevented from engaging the film by an electromagnet 19 which, when energized, holds the slider 13, 14 out of engagement with cam 5. The strength of the electromagnet is such that it can attract the slider, when the slider is engaged with the raised portion 16 of face cam 5, which corresponds to the position at which the claw is out of engagement with the film, but it is not sufficient to attract the slider when it is engaged with the lower portion 17 of the cam, which corresponds to the position in which the claws engage the film. The slider is biased by a compression spring 15 and moves in the direction of double headed arrow y thus pivoting the shuttle about fulcrum 8. The energization of the electromagnet may be controlled by a divider network fed with pulses from a photo-detector which detects the light passing through a bladed shutter e.g. every alternate pulse can result in energization of the magnet to prevent film pull-through.
Patent GB-429573-A (GB)
Title: Improvements in or relating to rubber paving blocks
IPC: E01C5/18
Filed: 1935-01-23
Abstract: 429,573. Rubber paving-blocks. SOC. ITALIANA PIRELLI, 21, Via Fabio Filzi, Milan, Italy. Jan. 23, 1935, No. 2242. Convention date, Jan. 27, 1934. [Class 87 (i)] A rubber paving- block of the kind formed with a lower layer of harder rubber than the upper layer and provided on the underside with projections formed integrally with the lower layer, is characterized in that the hard rubber layer is divided into juxtaposed sections articulated together by the upper layer. The hard rubber layer 2 is divided both longitudinally and transversely by grooves 4, which are formed either during the moulding of the block or by sawing or cutting after vulcanization. The projections 3 may be undercut, and may be rectangular or circular.
Patent GB-758946-A (GB)
Title: Improved process for the manufacture of glycol carbonates
IPC: C07D317/36
Filed: 1954-01-26
Abstract: Glycol carbonates are prepared by reacting an oxirane compound having the formula <FORM:0758946/IV(a)/1> in which R and R1 each represent a hydrogen atom or an alkyl or aryl group or together represent an alicyclic, aromatic or heterocyclic group with carbon dioxide in the presence of an organic nitrogen base as a catalyst, at a pressure above 500 lbs. per sq. in. and at a temperature between 100 DEG  and 400 DEG  C. Suitable oxirane compounds include ethylene oxide, propylene oxide, 1,2-epoxybutane, 2,3-epoxy butane, epoxyisobutylene, 1,2-epoxyhexane, 1,2-epoxy hexadecane and epoxycyclohexane. Suitable catalysts are amines and quaternary ammonium bases, the preferred one being trimethylamine.  Primary and secondary amines and organic quaternary ammonium bases, e.g. trimethylbenzyl ammonium carbonate and trimethylethanol ammonium carbonate may also be used.  The process may be carried out continuously or otherwise.  The preferred temperature range is 180 DEG  to 260 DEG  C. and preferably the process is carried out at a pressure above 1800 lbs. per sq. in.  An inert diluent may be used.  In the examples: (a) a mixture of ethylene oxide, dioxane, and piperidine is treated with carbon dioxide to give glycol carbonate; (b) ethylene oxide is reacted with carbon dioxide in the presence of triethylamine and dioxane to give glycol carbonate; (c) ethylene oxide is reacted with carbon dioxide in the presence of trimethylethanol ammonium carbonate to give glycol carbonate; (d) ethylene oxide is reacted with carbon dioxide in the presence of trimethylamine and dioxane to give glycol carbonate; and (e) propylene oxide is reacted with carbon dioxide in the presence of trimethylamine and dioxane to give propylene carbonate.
Patent GB-898776-A (GB)
Title: Improvements in or relating to the making of synthetic resin-impregnated fibrous laminated articles
Inventor: JUDD NIGEL CECIL WILLIAM
IPC: C08J5/24
Filed: 1958-01-23
Abstract: A barrier material, used in making laminates (see Group VIII), comprises one or more polyethylene glycol waxes or greases, and may also include a dye, e.g. eosin, and/or an inhibitor of the curing or polymerization reaction of the synthetic resin to which it is to act as a barrier.  The inhibitor may be a polyhydric phenol, e.g. pyrogallol.  The barrier material may be applied as a solution in water, alcohol or acetone, or as a hot melt.
Patent GB-228701-A (GB)
Title: Shin guard for association and rugby football, hockey and kindred games
IPC: A63B71/12
Filed: 1924-01-29
Abstract: 228,701. Bowman, J. W. Jan. 29, 1924. Guards for games.-A shin guard to be worn inside the stocking for use in hockey, football and similar games is provided on its outside with cane strips and wool packing material secured between an inner and outer cover, and is provided on the inside with a relatively thick layer of felt, sponge-rubber or equivalent impact-absorbing material which projects beyond the bottom of the outside portion to minimize chafing of the player's skin. Cane strips B with wool packing C are sewn between inner and outer covers A, D and are backed by a relatively thick layer E of felt, or sponge-rubber which projects well below the cane portion as shown in Fig. 1, to minimize chafing of the wearer's leg. The corners F are rounded off to prevent tearing of the stocking.