baber/WOPTO huggingface dataset:
Patent GB-1018184-A (GB)
Title: Processes for producing adherent coatings on iron and steel parts
IPC: C23C22/78
Filed: 1962-09-13
Abstract: Adherent uniform coatings are formed on iron and steel parts by a three stage treatment in aqueous solutions comprising (i) treatment with a solution containing 0.5-20.0% by weight of at least one aliphatic hydroxy carboxylic acid with 1-3 COOH-groups and no more than 6 C-atoms in the molecule, (ii) subsequent treatment with a solution containing 0.1-100% by weight of chromic acid, and (iii) rinsing surfaces so treated with desalted water or aqueous solutions containing chromic acid not exceeding 0.08% by weight, and finally drying.  The aliphatic hydroxy carboxylic acid may be glycolic acid, lactic acid, tartaric acid, citric acid or mixtures thereof used with or without phosphoric acid and/or oxalic acid; preferably with 1.5-8% by weight of hydroxy carboxylic acids.  The solution (i) may also contain inhibitors such as diethyl thiourea used within the range 0.06-0.25% by weight.  The solution (ii) preferably contains 0.25-3.5% by weight chromic acid and may also contain phosphoric acid or alkali metal ortho and poly phosphates (Na3PO4, K3PO4 and Na5P3O10).  The phosphate added should not exceed 25% by weight of the chromic acid content.  Treatment temperatures are preferably in the range 5-30  DEG C. Treatment solutions can be regenerated by cation exchangers whereby iron ions are removed from solution (i) and iron ions and Cr3+ ions are removed from solution (ii).
Patent GB-614332-A (GB)
Title: Improved change speed gear for bicycles and like vehicles
IPC: B62M11/06
Filed: 1945-12-28
Abstract: 614,332. Change-speed gear. KLEFFENS, . E. J. VAN. Dec. 28, 1945, No. 35045. Convention date, Aug. 29, 1942. [Class 80 (ii)] In a bicycle crank-shaft counter-shaft changespeed gear controlled by backwards movement of the crank-shaft 2, in which the gears or sprockets 3, 4, 5 are couplable to the driving shaft 2 through internal free-wheel clutches having pawls 16 and equal-spaced ratchet teeth, the gears are so constructed that one revolution of one produces, through the counter-shaft 11 and its gears 8, 9, 10, one revolution plus or minus a whole number of pitches of the ratchet teeth of the other gears on the driving shaft. Adaption for use with a back-pedalling brake is obtained by pawls 17 engaging the ratchet teeth of one of the gear-wheels under the action of the spring 22, these pawls are fixed to a shaft 19 forming part of an interrupting device having a feeler 13 which moves in contact with a disc 14 provided with recesses which allow the pawls 17 to be moved into the operative position only when the pedal cranks are substantially horizontal. The pawls 16 for the normal direction of rotation are pressed into the operative position by springs 21 and are also inter-coupled by a locking shaft 23 having a groove engageable with a tooth on the pawls and so arranged that when one pawl enters the operative position its tooth rotates the locking shaft through a predetermined angle to lock the remaining driving pawls in the inoperative position until the operative pawl is again urged into the inoperative position. In a modification, the driving pawls are held in unstable equilibrium between the operative and inoperative positions and are connected either mechanically (Fig. 16), hydraulically, or pneumatically so that when one pawl is moved from the unstable to the operative position, the force on the remaining pawls is decreased to allow them to enter the inoperative position. A further modification provides a two-speed gear in which the braking is effected in low speed and a locking shaft is arranged to be controlled by the interrupter so that the braking pawl is locked in the inoperative position so long as the high-speed pawl is in the operative position and conversely. Detail modifications to the pawls, their controlling means and the spacing of the ratchet teeth are also described.
Patent GB-998048-A (GB)
Title: A straw shaker
IPC: A01F12/34
Filed: 1962-09-14
Abstract: 998,048. Thrashing machines. R. CLAAS. Sept. 14, 1962 [Dec. 21, 1961], No. 35051/62. Heading A1F. A reciprocating straw shaker 2 having perforations 6 is characterized by a slatted plate 7 which may be moved by a tongue 4 to cover the perforations 6 by varying amounts to suit the crop being passed through the shaker. The plate is held in its adjusted position by a wing nut 13. In an embodiment the plate is moved by an adjusting screw.
Patent GB-923326-A (GB)
Title: Improvements relating to electric pulse counting circuits
Inventor: SIMMONS BRIAN DESMOND
IPC: H03K21/00
Filed: 1959-10-16
Abstract: 923,326. Electronic counting - apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 29, 1960 [Oct. 16, 1959], No. 35133/59. Class 106 (1). In a counter adapted to count input pulses occurring at intervals that are each an integral multiple of a basic interval, for instance in a time division multiplex system, each stage includes a delay line store, the stores other than the first having individual gating circuits, the input pulses being applied to all the stages in parallel. The Figure shows three counter stages A, B, C and a carry gate G3 for supplying further stages or another counter. Input pulses are applied over a lead I to an OR gate GA in the first stage A and to AND gates GB1, GC1 in the stages B, C. Each stage includes a circulatory delay line DA-DC which may be of the mercury or magneto-strictive type, the gate GA and gates GB2, GC2, which have inhibitory inputs connected to the subsequent stage or the output of the gate G3, serving as input gates for the circulatory delays. In operation, the input pulses, which are arranged notionally in a plurality of " channels " are applied so that the available corresponding channels of the circulatory delays are those to which the input pulse at the time corresponds. The arrangement of gates shown is for counting in the binary code, but other codes may be employed if the gate interconnections are suitably modified, for example by employing feedback from the gate G3 applied to inhibit inputs of the gates of the counter stages. The count in any channel may be read out into staticizers SASC by a suitably timed pulse P applied to gates OGA-OGC. In a modification, each channel is shared on a time division basis, successive channel periods relating to the same channel being allocated cyclically to separate sources which may supply a plurality of input gates such as G1, G1<SP>1</SP> which are opened appropriately by pulses PP1, PP2 &c.
Patent GB-1076930-A (GB)
Title: Grafts of vinyl chloride upon partially hydrolysed ethylene-vinylester copolymers
Inventor: HARDT DIETRICH
IPC: C08F255/02
Filed: 1964-08-27
Abstract: Graft copolymers are made by polymerizing vinyl chloride on a partially hydrolysed copolymer of ethylene and a vinyl ester of an organic carboxylic acid.  The resulting graft copolymers preferably contain 5 to 70% of a partial copolymer of ethylene and 30 to 70% of a vinyl ester, e.g. vinyl acetate, 10 to 80% of the ester groups having been transformed into hydroxyl groups by hydrolysis. Polymerization is preferably carried out by dissolving the partially hydrolysed copolymer in vinyl chloride and polymerizing the resulting mixture in aqueous suspension with the aid of suspending agents and catalysts, e.g. peroxides and azo compounds.  The resulting graft copolymers may be cross-linked by reaction through their hydroxy groups with polyfunctional compounds such as polyisocyanates, e.g. hexamethylene diisocyanate, methylol group-containing compounds, e.g. N-hexamethylol melamine and its hexamethyl ether, polycarboxylic acids, polyepoxides and aluminium acetoacetic esters.
Patent GB-1207567-A (GB)
Title: A vending machine
Inventor: SCHULLER JAMES THOMAS
IPC: G07F11/06
Filed: 1968-07-24
Abstract: 1,207,567. Vending machines. UMC INDUSTRIES Inc. 24 July, 1968, No. 35217/68. Heading A4T. In a vending machine comprising a plurality of selective dispensers of the rear-hinged drop shelf type, when the last article of each dispenser has been dispensed, on the next vending cycle an article A on display behind a window 15 is dispensed. Each article A is carried in a holder 35 pivoted at 55 on a common rack 37. Holder 35 is normally held in its Fig. 2 display position by a latch 39 pivoted on rack 37. Each shelf 21, except the uppermost shelf 21t, carries an article, and when shelf 21t swings down after the other shelves have dispensed their articles, a cam 113 thereon pivots a lever 105 clockwise to lift a rod 117 to trip the latch 39. Holder 35 pivots rearwardly (Fig. 3) under gravity and article A gravitates into a common delivery pan 31. When holder 35 is in its display position, article A is retained therein by a flap 61 pivoted at 55 and a trap door 67 pivoted at 65 and held closed by its engagement with an inclined floor 73 of the rack. A flap 63 pivoted at 55 engages floor 73 to prevent articles dispensed from shelves 21 from catching on floor 73. Holder 35 has an escutcheon 71 for a price tag. The rack 37 has flanges 89 with slots 95 that are mounted on pins 91 so that the rack can be slid rearwardly from its Fig. 2 display position to a loading position (Fig. 4), holders 35 moving therewith so that their open tops are accessible for loading. The shelves 21 are latched in their horizontal position and they are released successively from the bottom up by successive actuations of respective coin controlled pull knobs 11.
Patent GB-175481-A (GB)
Title: Improvements in rotary stropping or grinding devices
IPC: B24D15/08
Filed: 1920-12-15
Abstract: 175,481. Watt, J. A. D. Dec. 15, 1920. Stropping apparatus. - A rotary stropping, grinding, honing, or buffing device comprises two rollers 6, 8, the roller 6 being helically grooved while the driven contacting roller 8 has a resilient periphery and may be resiliently mounted to enter the concave helix of the roller 6, so that their peripheries intersect to increase the stropping-angle. A pivotally-mounted key 11 is rotated to drive, through gearing, the roller 6, which frictionally drives the upper roller 8. The axis of the top roller is preferably set slightly out of vertical alignment with the lower roller 6 and towards the razor blade &c. to be stropped. The helical stropping-surface 7 may be formed of any suitable material and may be impregnated with an abrasive. The resilient surface of the roller 8 effects a buffing action. The device can be located in a box containing a razor, as described in Specification 164,469.
Patent GB-1439328-A (GB)
Title: Pistons and piston rings
IPC: F16J9/00
Filed: 1972-07-28
Abstract: 1439328 Pistons; cylinders WELLWORTHY Ltd 25 Oct 1973 [28 July 1972] 35285/72 Heading F2T A piston comprises a body 10 and a crown 16 detachably connected together and defining a groove 25 in which is housed a continuous, i.e. unsplit, piston ring 24 capable of operating at a temperature of 900‹ to 1000‹ C. and has a coefficient of thermal expansion substantially less than, preferably one quarter to one fifth, that of the material of the co-operating cylinder, e.g. cast iron. The ring 24 is of a ceramic material, e.g. tungsten carbide, silicon carbide or, preferably, silicon nitride. The body 10 is of aluminium alloy and the crown 16, which may be of nickel-chromium alloy, is secured thereto by a steel ring 20 and nut 21. The coefficients of thermal expansion of the ring 24 and cylinder are so selected as to maintain a close running clearance in the cylinder under all engine operating conditions.
Patent GB-1281700-A (GB)
Title: Metallic photographic products and processes
IPC: G03C1/77
Filed: 1969-07-14
Abstract: 1281700 Photoconductive member ITEK CORP 14 July 1969 [15 July 1968] 35290/69 Heading H1K [Also in Division G2] An imaging medium comprises an inorganic particulate photosensitive photoconductor in a water-permeable binder which is deposited in a layer having a thickness of less than 10 microns on a receptive metallic support (i.e. a metallic support which has been physically or chemically roughened in order that a metallic image deposited thereon by physical development will be adherently bound to the support or a physically smooth support which by chemical means will form an adhesive bond with a metallic image deposited thereon by physical development) and wherein the photoconductor is photoconductively insulated from the metallic support. This insulation may be provided by the binder in which the photoconductor is dispersed, a separate insulating layer such as a silicate layer, the metal oxide of the metal of the support or the photo-conductor itself may act as an insulating layer if it is sufficiently thick. The insulating layer is preferably solvent permeable and at least 10 Š thick. In the examples titanium dioxide is used as the photoconductor.
Patent GB-904563-A (GB)
Title: Manufacture of immunizing vaccines
Inventor: HALLUM JULES VERNE
IPC: C12N13/00
Filed: 1960-10-17
Abstract: 904,563. Inactivation of micro-organisms. COLUMBIAN CARBON CO. Oct. 17, 1960, No. 35522/60. Class 81 (I). Virulent disease-causing micro-organisms used in the production of immunizing vaccines are inactivated so that they are no longer capable of causing disease yet retain their immunizing antigenic properties, by subjecting them to electrolysis while in aqueous suspension at a pH of about 7.0 in contact with the anode of an electrolysis cell, at a constant potential of not less than 1 volt versus the normal calomel electrode, but below the decomposition potential of the water-electrolyte system and while preventing contact of said micro-organism with the cathode of the cell. The voltage should not exceed 2 volts and is preferably 1.2 to 1.6 volts. The current is normally 1 to 10 milliamperes per 10 sq. cms. of working electrode. In examples, a voltage of 1.3 to 1.7 is used for the inactivation of influenza virus, 1.6 to 1.8 for polio virus and 1.75 to 1.8 for vaccinia virus. As shown, the electrolytic cell comprises a cathode chamber 1 and an anode chamber 2 separated by a barrier 3 composed of fineporosity fritted glass disc of 4 to 5.5 micron pore size. The platinum anode 4 is of semicircular form and about 10 sq. cms. in working area. An agitator 8 and a calomel reference electrode 6 is also provided in the anode chamber 2 which is fitted with a side arm 12 for withdrawing samples. A platinum electrode 9 is provided in the cathode chamber 1. Each chamber is provided with a cover 13 and draining stopcock 11. The aqueous suspension of virus, bacteria or the like placed in the anode compartment is preferably substantially free from extraneous protein and is diluted to the desired virus &c. content by an aqueous phosphate buffer. This phosphate buffer is used alone in the cathode compartment.
Patent GB-1124439-A (GB)
Title: Production of anthraquinones
IPC: C09B3/00
Filed: 1967-08-02
Abstract: Anthraquinones having the general formula <FORM:1124439/C2/1> wherein n is 0, 1, 2, 3 or 4 and the anthraquinone nucleus may contain halogen, aryl, aroyl, tertiary alkyl, and carbonyl substituents, and radicals which form anellated quinoid rings with the anthraquinone nucleus, are prepared by treating at superatmospheric pressures an anthrone having the general formula <FORM:1124439/C2/2> wherein R is C1-C4 alkyl but not tertiary butyl and two vicinal R groups may form a cycloaliphatic ring, n is as above, and the anthrone nucleus may be substituted as above, with 5 to 45% by weight nitric acid at 150-250 DEG  C., the nitric acid being used in at least a stoichiometric amount with reference to the anthrone. Examples 1-6 describe the preparation of mono- and di-chloro anthraquinone mono- and di-carboxylic acids, and Example 7 the preparation of 1,4-dichloro anthraquinone.
Patent GB-481775-A (GB)
Title: Improvements in, or relating to, ventilators or lights for roofs
IPC: E05F11/04
Filed: 1936-12-29
Abstract: 481,775. Ventilators. HILLS PATENT GLAZING CO., Ltd., HINCHLIFFE, E. D., and HARROD, G. W. Dec. 29, 1936, No. 35566. [Class 137] In the operating gear of roof ventilators, the lights a of which are pivoted at their lower ends and open outwardly, each light is coupled by a wire or rod c, c<1> to a common rotatable shaft b controlled by a cable e provided with an alloy fuse e<1>. Each wire c, c<1> terminates in a' link f which normally engages in a slot f<1> at the end of an arm d or d<1> secured to the shaft b. In case of fire, the fuse e melts and releases the cable e, and the sashes a by their own weight rotate the shaft b and the arms until the links slide out of the slots f<1>, and the sashes are free to fall fully open. Tensioning devices g may be provided so that all the sashes may be closed simultaneously.
Patent GB-797903-A (GB)
Title: Improvements in or relating to tubular electric heater hot-plates
IPC: F24C15/14
Filed: 1955-12-13
Abstract: 797,903. Electric hot-plates; drip guards. LEICHT, A. A. Dec. 13, 1955 [Dec. 17, 1964], No. 35679/55. Classes 39(3) and 126 A hot plate comprises a coiled tubular electric heating element 3 resting on a spider 5 having feet placed in indentations 6 in a reflector 1 which slopes down outwardly from its centre and has a peripheral flange engaging over a flange 2a bent up around an aperture for a hot-plate in a hob 2 of a cooker, so that overflowing cooking materials can run on to the hob and cannot pass through the aperture. The end of the element 3 is bent down at 4 to pass through a hollow revolving pin 8, so that the element may be raised and then turned horizontally about the end 4. The hollow pin 8 carries a spring arm 10 which on turning the element slides along an inclined slideway 11 on a plate 15 below the reflector and finally engages in a notch in the slideway 11 when the element is in position. The element, which has fixed connections, is then pulled down by the spring arm 10 against the spider 5. The hollow pin 8 has a flange 9 resting on an upwardly projecting neck in the reflector, which may be removable for cleaning.
Patent GB-877008-A (GB)
Title: Improvements relating to dragline excavators
Inventor: BROCKLEBANK NORMAN
IPC: E02F3/58
Filed: 1958-11-06
Abstract: 877,008. Earth-excavating equipment. PRIESTMAN BROS. Ltd. Oct. 12, 1959 [Nov. 6, 1958], No. 35686/58. Class 68(1). In a dragline excavator mounted on a track vehicle, a boom 22 carrying a sheave 24 is carried by the turn-table so that the dragline 26 may be at an angle to the vertical plane of the jib 8 to permit one of the tracks 2 of the vehicle to be on the line of the trench to be dug. In Fig. 1, the turn-table 12 is rotated by two wire ropes which wrap around the periphery of the table and also around two winches 16 driven by clutches 18 from the engine 4. A brake 20 locks the turn-table and the jib in the position shown in plan in Fig. 1, the brake or brakes being released when the jib is to be slewed to dump the spoil. The sheave 24 is mounted in a swivel fork 30. In a modification, the operators' cab is mounted on the turntable which is driven by pinion and spurwheel. the boom 22 comprises a channel section secured to the underside of the turn-table, the sheave 24 being connected to the boom by a shackle which permits the necessary tilting of the sheave. The boom may be transferable from one side of the turn-table to the other, or two booms, one at each side, may be provided.
Patent GB-1189664-A (GB)
Title: Laminated Articles.
Inventor: TREGO BRIAN ROBERT
IPC: H01B3/48
Filed: 1966-08-10
Abstract: 1,189,664. Laminates. MIDLAND SILICONES Ltd. 1 Aug., 1967 [10 Aug., 1966], No. 35749/66. Heading B5N. [Also in Division F2] A laminated article is made by superimposing and pressing together a plurality of layers, each layer comprising a reinforcing material which has been impregnated with an organic solvent solution of an organopolysiloxane resin having from 0À1 to 1À85 organic radicals per silicon atom, the said solution containing a finely divided inorganic filler material, the assembly thereafter being maintained under pressure and at an elevated temperature to cure the resin Specified reinforcing materials are glass cloth, asbestos cloth, asbestos paper and woven or non-woven synthetic fibrous materials, e.g. polyethylene terephthalate. Specified organic radicals are methyl, ethyl, propyl, vinyl, allyl, phenyl and naphthyl radicals and halogenated derivatives thereof. Specified fillers are titanium dioxide, aluminium oxide, zinc oxide, kaolin, metal silicates, calcium carbonate, fullers earth and silica. Siloxane curing agents, e.g. carboxylic acid salts of organic amines and flotation acids, e.g. amine modified clay may be included in the impregnant.
Patent GB-1462162-A (GB)
Title: Process for producing ammonium p-styrenesulphonate
IPC: C07C309/30
Filed: 1975-08-29
Abstract: 1462162 Ammonium p-styrenesulphonate TOYO SODA MFG CO Ltd 29 Aug 1975 [29 Aug 1974] 35771/75 Heading C2C Ammonium p - styrenesulphonate is obtained by reacting an amine having 7 or more C atoms and a mineral acid with an alkali metal pstyrenesulphonate in water or in an aqueous mixture of an organic solvent to produce an amine salt of p-styrenesulphonic acid and then reacting said amine salt with NH 3 . In an embodiment of this process, an amine salt of p-styrenesulphonate acid is produced as a first step by contacting an aqueous solution of an alkali metal p-styrenesulphonate with the mineral acid salt of said amine in an organic solvent, the resulting organic solution of the amine salt of p-styrenesulphonic acid is contacted with NH 3  as a second step to produce the ammonium p-styrenesulphonate and recover the released organic amine, and the recovered organic amine is reacted with a mineral acid as a third step to recover the mineral acid salt of said amine which is then recycled to the first step. This embodiment may be performed continuously. Specified amines are aliphatic or aromatic primary, secondary or tertiary amines. They may also be ion-exchange liquids or resins comprising amino groups. Specified classes of organic solvents are hydrocarbons having 5 or more C atoms, monohydric alcohols having 4 or more C atoms, esters having 4 or more C atoms, ketones having 4 or more C atoms and ethers having 4 or more C atoms. An apparatus for carrying out the process which comprises a three mixer-settler type counterflow extraction apparatus is described.
Patent GB-1224362-A (GB)
Title: Sabot projectile.
IPC: F42B14/06
Filed: 1968-07-26
Abstract: 1,224,362. Sabot projectiles. WERKZEUG MASCHINENFABRIK OERLIKON BUHRLE K.G. 26 July, 1968 [28 July, 1967], No. 35862/68. Heading F3A. A sabot projectile, Fig. 1, comprises a subcalibre core 1, e.g. of tungsten carbide, a sabot 4 having a groove formed by two substantially parallel side walls 21 and 50 and a bottom surface 24, and a jacket 51, e.g. of nylon, fitting into the groove to form a gas-tight connection and being formed with an integral driving band 3. A front part 5 of the sabot is divided by longitudinal slits into segments formed with teeth 17. A segmented sleeve 15 is retained between a shoulder 34 of the jacket and a segmented locking ring 14. The jacket is formed with longitudinal weakening grooves 36, weight-reducing pockets 38, and a line of weakness 45 in a closure 44. Knurling 48 may be provided on the groove wall 21. In another embodiment, Fig. 6, the teeth 17 are dispensed with and the sleeve 15, which, in this case is integral with the locking ring 14, is retained by a curled edge 53 of the sabot. In a further embodiment, Fig. 7, the sleeve is retained by screw-threading 56. On firing the projectile, air pressure bursts the jacket closure 44 and the jacket disintegrates into segments under the effect of centrifugal force. The segments of the front part 5 of the sabot, which are subject to the centrifugal force acting on the locking ring 14 and sleeve 15, are torn off so that the core 1 is completely freed from the sabot.