baber/WOPTO huggingface dataset:
Patent GB-391094-A (GB)
Title: Electric installation for motor cars or other vehicles
IPC: H02J7/14
Filed: 1931-07-13
Abstract: 391,094. Supply systems for consuming devices ; charging batteries. MAG. NETO LUMIERE L.M.C., Sochaux, Doubs, France. July 13, 1931, No. 20116. Convention date, July 15, 1930. Void [Published under Sect. 91 of the Acts]. [Class 38 (iv).] In an electrical installation for motor vehicles a shuttle-type dynamo 1 is employed and the battery 7 is charged therefrom through a unidirectional current carrying device which is preferably an electrolytic or copper-oxide rectifier 8 but may be an electromagnetic switch. The armature may be provided with a rectifying commutator 4 in addition. Coil ignition is obtained from the dynamo direct, the contact breaker 26 being synchronized with maximum voltage periods of the dynamo. A switch 10 may be provided to control the connections between the dynamo and battery and between the battery and the lighting load, charging being carried on through a resistance 16 when the lighting load is disconnected.
Patent GB-220455-A (GB)
Title: Improvements in and relating to trouser pressers and stretchers
IPC: A47G25/72
Filed: 1923-08-08
Abstract: 220,455. Iddon, N. Aug. 8, 1923. Combined presses and stretchers. -In a trouser press of the known kind in which the compression bolts 6, Fig. 4, are pivotally connected at 8 to transverse bands 9 on the base and in which slipping of the holts is prevented by upwardly curved portions 4a on transverse bands 4 attached to the upper press boards, there is combined a stretching device of a known type comprising clamping blocks 12, 13, Fig. 6, separated from the press by a screwed rod 18 operated by a wing nut 19. The wing nuts have flanges 19a which engage beneath metal washers 20.
Patent GB-299750-A (GB)
Title: Improvements in the treatment of complex minerals containing tin and/or copper, iron, arsenic, sulphur and the like and associated base and precious metals in combination or otherwise
IPC: C22B3/06
Filed: 1927-07-30
Abstract: 299,750. Wilder, F. L., Morris, E., Schiff, E., and King, E. S. July 30, 1927. Treating ores to remove undesired constituents and to facilitate concentration. - Complex minerals, for instance tin-bearing sands, are washed with a solution comprising persulphates and chlorides of an alkali metal and ferric salts, whereby the very fine particles are dissolved out and a residue left suitable for concentration, as by a gravity process. Free chlorine may be present in the washing solution and at least a, part of the ferric salts may be formed in situ when the ore treated contains soluble iron. A specified solution contains sulphuric acid, sodium chloride, bisulphate, and persulphate, persulphuric acid, ferric chloride and sulphate, and free chlorine. From the separated washing solution dissolved metals, such as copper or tin, may be precipitated by iron, and a part or the whole of the mother-liquor may be regenerated, if necessary, by electrolysis before being used. Sulphur dioxide and chlorine, or the former dissolved in a solution of sodium chloride, may be added during the regeneration step.
Patent GB-333355-A (GB)
Title: Improvements in tip-boxes
IPC: B65D90/62
Filed: 1929-07-03
Abstract: 333,355. Rideout, T. July 3, 1929. Skips.-A skip of the side opening door type has tapering cut-away sides and pivoted slotted arms carrying links engaging the doors and connected to a weight and adapted to normally lock the closed doors and to allow them to open fully for complete discharge and partially for final discharge. The tapering sides b have cut-away portions r in which the hinged doors n engage. Links c<1> are provided with door-engaging lugs c and have rollers d engaging slots d<1> in arms e mounted on pivots f. The inner ends of the link c<1> are connected by chains g passing over rollers k to a weight l, which holds the links at the top of the slots'in alignment with the pivots f, thus locking the doors in the closed position. In operation, when the skip is lowered into a ship's hold &c. and the weight l rests on the floor on material thereon, the arms e and links c' swing downwards and the doors open to the dotted line position A to discharge the material. Stops p limit the movement of the arms e. When the skip is being raised, the doors first fall to the dotted line positions B to allow complete discharge and are finally closed and locked when the weight l pulls the chains taut.
Patent GB-1059093-A (GB)
Title: Selective position controller circuit
Inventor: CONNORS WILLIAM DONALD
IPC: G05B5/01
Filed: 1964-05-15
Abstract: 1,059,093. Control systems. HARDINGE BROS. Inc. May 15, 1964, No. 20347/64. Heading G1N. Adjustment of the wiper 21 of a setting potentiometer 2RH controls the angular position of a motor M to which the wiper 11 of a second (tracking) potentiometer 1RH is geared, any p.d. between the two wipers causing one or other of the transistors TR1, TR2, to conduct, depending upon the polarity of the p. d., thereby to operate an associated relay 1CR or 2CR, which energizes a further relay 1MR or 1ML respectively to complete one of the motor control circuits 81, or 83, to drive the motor in the required direction. The motor may control the speed of a machine tool by raising or lowering the speed change pulley carrier. Hunting is avoided by virtue of an inherent "dead band" in which small changes in potentiometer slider position produce no response from the transistor circuit. Because the effect of elevated temperatures on transistor characteristics reduces this dead band to the point of system instability, thermistors R2, R5, are included in the base circuits to compensate for these temperature dependent changes. The motor circuit relays 1MR and 1ML are cross connected so that the motor drive circuits 81, 83 cannot both be accidentally closed at the same time. A second setting potentiometer 3RH permits presetting of a required motor position (i.e. machine tool speed) this being selected, when required, by a switch 25.
Patent GB-1278914-A (GB)
Title: Process for the manufacture of flavanthrones
IPC: C09B5/20
Filed: 1971-04-19
Abstract: 1278914 Manufacture of flavanthrones CIBA-GEIGY AG 19 April 1971 [11 Feb 1970] 20400/71 Heading C4P Flavanthrones are prepared by heating a 1- halogeno - 2 - aminoanthraquinone with copper in a strongly polar aprotic solvent. The anthraquinone compounds may be further substituted in the nucleus and preferably are the 1-chloro- or l-bromo derivatives. An excess of copper is used, preferably 1À5 atom weights of copper per mole weight of halogenoaminoanthraquinone. Suitable solvents include dimethylsulphoxide, carboxylic acid amides in which the amide nitrogen atom is derived from a secondary amine, e.g. dimethylformamide, N-methylpyrrolidine. The reaction is carried out at 50-100 C. using 2 parts of solvent per part of anthraquinone compound. Reducing agents may be present to remove copper halides formed during the reaction, e.g. polyhydroxybenzenes, glucose or 1,4-naphthohydroquinone- 2-sulphonic acid. The flavanthrones produced are isolated by filtration and purified from copper by suspending the product in a dilute mineral acid and treating it with an oxidizing agent.
Patent GB-839812-A (GB)
Title: Improvements relating to face mill cutters, for spiral bevel gears and the like
IPC: B23F21/22
Filed: 1958-06-25
Abstract: 839,812. Milling-cutters. GLEASON WORKS. June 25, 1958 [July 1, 1957], No. 20419/58. Class 83 (3). A face mill cutter for spiral bevel gears comprises blades 18, each secured in a slot 12 by a screw 22 in a position determined by a wedge 16 adjusted by a screw 27 having flat faces engaging a slot 26 in the wedge. Shims 21 may be used for coarse adjustment. One master blade (or two such blades if alternate blades have outside and inside cutting edges) has its wedge pinned to prevent movement. Specification 804,803 is referred to.
Patent GB-614221-A (GB)
Title: Improvements relating to thermionic valve control circuits
IPC: H03K17/54
Filed: 1946-07-09
Abstract: 614,221. Valve gating circuits. SHAND, G. and METROPOLITAN VICKERS ELECTRICAL CO., Ltd. July 9, 1946, No. 20512. [Class 40 (vi)] In a gating circuit a control valve which is normally conducting applies cathode bias to render the gate valve inoperative. When gating signals are applied to the control valve the bias is removed from the gate valve and signals at its grid circuit are applied to the control valve via the cathode coupling resistor and appear in the anode circuit of the control valve. In the Figure, when negative control pulses are applied at G the control valve V<1> has its anode current reduced and the gating valve V2 is rendered conducting, signals at its input I appearing with the same polarity at the output O of the control valve.
Patent GB-1065383-A (GB)
Title: Improvements in or relating to high frequency circuit arrangements for capacitive transducers
IPC: H04R19/04
Filed: 1964-05-19
Abstract: 1,065,383. Transistor amplifying circuits. AKUSTISCHE U. KINO-GERTE G.m.b.H. May 19, 1964 [May 20, 1963], No. 20548/64. Heading H3T. The invention relates to a circuit for a capacitive transducer, being of the modulated high frequency type and comprising an oscillator A which includes the primary winding of a transformer  1 , the secondary of which is centretapped and is shunted by the capacitive transducer C 0  in series with a fixed capacitor C 1 . A bridge type detector circuit is formed in conjunction with diodes D 1 , D 2  which are connected to impedance-matching transformer windings S 1 , S 2  respectively, a low frequency output being obtained via audio transformer  2 . According to the invention, efficiency is increased and the signal to noise ratio improved by replacing the H.F. choke which, in the known circuit connects the centre-tap of the secondary of the transformer  1  with the join of capacitors C 0 , C 1 , by a resonant circuit Lr, Cr or bandpass network. This is tuned to a frequency offset from the frequency of oscillation and gives an increased output by virtue of the frequencymodulation which occurs when the transducer C 0  varies in capacity.
Patent GB-681997-A (GB)
Title: Improvements in and relating to tipping vehicles and the like
Inventor: ANTHONY WILLIAM CORNELISON
IPC: B60P1/16
Filed: 1949-08-08
Abstract: 681,997. Tipping vehicles. ANTHONY CO. Aug. 8, 1949, No. 20575/49. Class 108 (i). A tipping body or assembly for a vehicle comprises an inner load container and an outer shell which together form cavity walls adapted to house actuating single or double acting hydraulic cylinders and pistons for tipping either both shells together when they are permanently joined as a unit to a chassis, or only the inner container when it is fitted into an existing body or outer shell of a non-tipping vehicle. The assembly for the simultaneous tipping of both shells. comprises a bottom 1, Figs. 1, 2, side walls 2 having outwardly bent portions 3, and outer wall members 4 with stiffening ribs 6. Channel-shaped frame members 8 engage flanges 7 of the members 4, and transverse members 9-16 support the floor plate 1. At its rear the assembly may be provided with a tail gate 17 hinged at 18, and a spring latch 19. The assembly is hinged at either side on members 37 engaging a bearings haft 37a. The hydraulic tipping mechanism comprises a pair of piston rods 28, and cylinders 29 secured to collars 30 positioned upon a tubular transverse member 31. A single shell assembly, Fig. 10, for use with a vehicle already having a fixed body comprises a bottom 60, an end wall 61, and side walls 62 having outwardly flared portions 63, 64, overhanging the sideparts 57, 58 of the fixed body within which the tipping assembly is mounted. The tail gate normally present in the fixed body suffices to close the tipping portions.
Patent GB-597140-A (GB)
Title: Improvements relating to regulating means for alternating electric current generators
IPC: H02P9/32
Filed: 1945-08-10
Abstract: 597,140. Alternators; transformers. LUCAS, Ltd., J., and LAIRD, J. A. Aug. 10, 1945, No. 20628. [Classes 35 and 38 (ii)] An alternator has its exciting winding connected through a rectifier to a transformer having two primary windings, one carrying the load current and the other connected across an alternator phase winding, the transformer windings being on different parts of its core. One such transformer can be provided for each phase in the case of a polyphase alternator. In the form shown, the rectifier h is fed by three secondary windings g in parallel and the primaries f<1> are connected across phases which are lagging with respect to the phase in the circuit of which primary f is connected, or the two primaries of the same transformer can be in series with and across the same phase winding. One limb of the transformer may be separated from the remainder by air gaps (Fig. 2, not shown).
Patent GB-462101-A (GB)
Title: Improvements in laminated articles
IPC: B29C67/24
Filed: 1936-07-25
Abstract: A laminated article comprises a base, an outer coating of material resistant to rubber solvents and swelling agents and comprising a butadiene or substituted butadiene polymer or olefine polysulphide plastic, and, between them, a cushioning layer of rubber obtained from a rubber latex composition.  Isoprene and chloroprene are specified as substituted butadienes.  The chloroprene polymer and olefine polysulphide plastic may be compounded with rubber, softeners such as brown factice, coumarone resin, or cotton-seed oil, fillers such as whiting, clay, carbon black, red oxide of lead, and asbestos, the plastic elastic reaction product described in Specification 421,435, [Group illegible data V], antioxidants, rubber accelerators, &c. The cushioning layer may be a dipped, spread or sprayed coating of latex, and may be moulded on to the base.  The coating of butadiene or substituted butadiene polymer may be applied from solution or aqueous dispersion, and may be vulcanized to the cushioning layer, which may be vulcanized to the base.  A few coats of rubber cement may be applied between the cushioning layer and outer coating.  The invention may be applied to lined tanks and cars, packing rings and gaskets, washers, printing-plates, inking- rollers, and printers' blankets.  A composition suitable for forming the cushioning layer comprises rubber latex, formalin, water, potas sium hydroxide, antimony trisulphide, sulphur, whiting, red iron oxide, zinc oxide, heptalde hyde-aniline condensate, acetone-diphenylamine condensate, solvent naphtha, glue, and sodium isopropylnaphthalene sulphonate, and may be applied in one or several spreading opera tions.  For the outer layer, a coal tar naphtha, ethylene dichloride, or benzol solution of a composition containing chloroprene plastic polymer, the plastic elastic reaction product described in Specification 421,435, carbon black, whiting, zinc oxide, magnesium oxide, rosin, cotton-seed oil, and sulphur is specified, spread on in a number of coats.  Specification 423,556, [Group XVI], also is referred to.
Patent GB-652457-A (GB)
Title: Improvements in a method of manufacturing latex articles and articles obtained thereby
IPC: C08L21/02
Filed: 1948-08-05
Abstract: Latex articles are produced by moulding a mixture of latex and a rosin solution; preferably a zinc compound such as zinc oxide is also added either prior to, at the same time as, or after the rosin solution.  The latex preferably contains an ammonium salt to give an ammonia content of about 0.5 per cent.  The rosin is dissolved in alcohol and 5 to 8 per cent based on the amount of dry rubber of a 15 per cent solution is added to the latex.  The amount of zinc oxide added is from 0.1-1 per cent of the dry rubber.  If desired, the latex can be beaten into a froth after addition of the rosin solution but before admixture of the zinc compound.  Sulphur and a vulcanizing accelerator may be added to facilitate vulcanization after drying.
Patent GB-595233-A (GB)
Title: Improvements in or relating to electric lamp and like holders
IPC: H01R33/08
Filed: 1945-08-13
Abstract: 595,233. Lamp-holders. ASHLEY ACCESSORIES, Ltd., and PICKERING, C. W. Aug. 13, 1945, No. 20695. [Class 38 (i)] A holder for double-ended electric lamps, comprises a moulded insulating body 10 recessed at 15 to house resilient strip contacts 13 and having a central bore 14 and a radial slot 17 extending from the periphery of the body to the recess. A spigot member 11, slotted at 22, has a chamfered flange 23 at its rear end bearing on the chamfered rear edge 18 of the bore 14 so as to be rotatable therein, the spigot being supported in the holder by a closure plate 12 secured thereto so as to bear against the front face of the holder and comprising two semicircular halves spaced apart so as to leave a slot 28 between them. Each contact 13 has a pin-engaging recess 29, engaged in the " off " position by projections 25 on the spigot in which position the slots 17, 22 28 are aligned to receive the pins of a lamp which is then rotated through 90 degrees to bring slots 22, 28 at right angles to the slot 17 thereby retaining the lamp pins in the holder. According to the Provisional Specification, the cover 12 may have a knurled flange fitting over the sides of the body which may also carry a mounting bracket into which the contacts may extend and be fitted with terminals. A single bracket may carry two or more holders.
Patent GB-1604891-A (GB)
Title: Mowing machine
IPC: A01D34/66
Filed: 1978-05-19
Abstract: The mechanical reaper comprises a first chassis portion 15A accommodating drive means 53, 62 for the reaping elements 81, 82, end rotors 87 for moving the cut plants, these being arranged above the reaping elements and rotating upon vertical axes 16 and a second chassis portion 14 superimposed on the rotors 87. This second chassis portion 14 is hollow and accommodates a geared transmission 21 which engages the two shafts 16 of the rotors 87. <IMAGE>
Patent GB-224613-A (GB)
Title: Improvements in means for making or repairing roads and like surfaces
IPC: E01C19/08
Filed: 1923-08-18
Abstract: 224,613. Hines, J. Aug. 18, 1923. Cauldrons; surface-heating apparatus. - A portable tar cauldron of the kind in which a preliminary tar-heating chamber o is arranged directly above the furnace e, has perforations in the chamber through which the tar flows into a main tank s at a lower level, the chamber being fitted with a removable tray or basket p for retaining solid impurities. In the apparatus shown, air blown by a fan d is directed above and below the firebars of the furnace, under the control of a damper j. The furnace gases, after passing below the tar containers, may be directed on to the road surface through a hood g. The chamber o is furnished with a straining wall r and a shoot t guides the tar into the tank s. The hood g, which runs on wheels n, is supported by cables l and can be raised in guides by operating a winch m. In a modification, a shallow unperforated tray is removably mounted at the bottom of the chamber o, the sides of which are perforated. In this construction, a tar delivery pump is arranged within the tar tank s.
Patent GB-152174-A (GB)
Title: Improvements in counting mechanism particularly applicable for use in combination with automatic weighing scales
IPC: G01G23/18
Filed: 1919-08-27
Abstract: 152,174. Avery, W. & T., and Burrows. J. J. Aug. 27, 1919. Counters actuated by reciprocating mechanism ; detent mechanism.-Means are provided for actuating counters in automatic weighing machines or generally, which give the required intermittent movement positively, and are independent of spring control. The propelling member 8 for engaging the pins 7 on the units wheel is guided by a slot engaging a fixed pin 12, and is pivoted at 14 to a motion-limiting member 15 having teeth 18, 19 to engage alternately the unit-wheel pins, the latter also engaging a stop 20 on the propelling member 8 so as to limit its movement. A spring- controlled non-return detent 21 may be fitted, but is not necessary. The motion-limiting member 15 is mounted on the actuating spindle of the counter by means of a set-screw.
Patent GB-1071212-A (GB)
Title: Improvements in and relating to logic circuits
IPC: H03K19/084
Filed: 1964-05-21
Abstract: 1,071,212. Logic circuits. LE MATERIEL ELECTRIQUE S.W. May 21, 1964 [May 30, 1963], No. 21025/64. Heading H3T. A plurality of AND circuits, each consisting of a bias source and diodes connected in the same sense to inputs, is arranged as an OR circuit by joining the outputs through respective resistances directly to the base of a common transistor connected to a bias source, the OR output being taken from the collector. In the Figure, the transistor 4 will conduct if voltage appears at one of the points 11, 12 or 13, which will happen if all the a inputs leading to this point are in state 1. The transistor will be blocked if 11, 12 and 13 are all in state 0, i.e. if at least one a input of each AND circuit is in state 0. An NPN transistor can be used, with reversal of the polarities of the diodes and bias sources. The resistors 5 can be shunted by capacitors.
Patent GB-1218691-A (GB)
Title: Injection moulding of thermoplastic moulding compositions derived from polyesters and polyamides
IPC: C08L77/00
Filed: 1969-04-24
Abstract: 1,218,691. Thermoplastic polyester moulding compositions containing polyamides. FARBWERKE HOECHST A.G. 24 April, 1969 [24 April, 1968], No. 21045/69. Heading C3R. A shaped article is made by injection moulding of a thermoplastic moulding composition prepared by mixing in the molten state (a) a linear saturated polyester of an aromatic dicarboxylic acid and, optionally, a small quantity of an aliphatic dicarboxylic acid, with a saturated aliphatic or cycloaliphatic diol, the polyester having a reduced specific viscosity (measured in a 1% solution in a 60: 40 mixture of phenol and tetrachloroethane at 25‹ C.) of 0À6 to 2À0 dl/g, and (b) 0À5 to 50% by weight, based on the total weight of the composition, of a linear saturated polyamide having a reduced specific viscosity (measured as above) of 0À6 to 6 dl/g. The polyester is preferably polyethylene terephthalate or polycyclohexane-1,4-dimethylol terephthalate, and the polyamide is preferably polycaprolactam, polyhexamethylene adipamide, poly-α,#-undecamide or poly-α,#-dodecamide. Mixtures of different polyesters and polyamides may also be used. The composition may also contain inorganic nucleating agents and pigments, and may be coated with a wax (e.g. polythene wax).
Patent GB-1091365-A (GB)
Title: Process for producing 5-guanylic acid
Inventor: SAMEJIMA HIROTOSHI
IPC: C07H1/02
Filed: 1965-05-19
Abstract: 51-Guanylic acid is obtained by heating a solution containing guanosine-di-phosphate and guanosine-tri-phosphate, said solution having a pH of from 11 to 14.  The reaction is suitably effected at 100-120 DEG  C.