baber/WOPTO huggingface dataset:
Patent GB-595336-A (GB)
Title: Impulse generator using a gas discharge tube
IPC: H03K3/55
Filed: 1945-03-16
Abstract: 595,336. Pulse generating circuits. FARNSWORTH TELEVISION & RADIO CORPORATION. March 16, 1945, No. 6743. Convention date, Oct. 18, 1943. [Class 40 (v)] In an impulse generator with a high-pulse recurrence frequency, a gas filled valve is quenched by a plurality of impulses which react successively on the valve to keep the anode potential negative with respect to the cathode long enough for complete de-ionisation to take place. Fig. 1 shows valves 11, 26 normally biassed beyond cut-off by potentiometers 22, 27. A positive trigger pulse from generator 17 causes valve 11 to strike and impress a negative wave front on delay net work 16 which delivers a reflected negative wave front at the anode to extinguish the valve after a time corresponding to the pulse width. Impedance 14 is low to produce large pulse amplitude and to compensate for the correspondingly short discharge time of net work 16, a trigger pulse is fed through delay net-work 24 to activate valve 26 and deliver a second negative wave front at the anode of valve 11 after quenching to keep its potential negative until de-ionisation is complete. In a modification, Fig. 2, (not shown), delay net-work 24 receives a positive wave front corresponding to the leading edge of the output pulse and causes valve 26 to conduct immediately after valve 11 is quenched.
Patent GB-1450321-A (GB)
Title: Thermoplastic moulding compositions based on polybutylene  terephthalate
IPC: C08L77/00
Filed: 1974-02-15
Abstract: 1450321 Polybutylene terephthalate moulding compositions BASF AG 15 Feb 1974 [17 Feb 1973] 6905/74 Heading C3R A moulding composition comprises polybutylene terephthalate having a relative viscosity of from 1À5 to 1À8 and 5 to 50% by weight, based on the total composition, of a linear saturated polyamide. The moulding composition may also contain glass fibres, asbestos, chalk or talcum. The polyamides used in the examples are polycaprolactam, polyhexamethylene adipamide and the copolyamide derived from adipic acid, hexamethylene diamine and 2,2-bis (4<SP>1</SP>- aminocyclohexyl )propane.
Patent GB-1381889-A (GB)
Title: Remote controlled power brake arrangement
IPC: F16D65/28
Filed: 1972-02-15
Abstract: 1381889 Brakes ARMCO STEEL CORP 15 Feb 1972 6963/72 Headings F2E and F2F A remote-controlled force-amplifier for a hand brake comprises a spring 26 which applies the brake but which is overcome by fluid pressure in cylinder 28, the force applied to the brake being partly reflected in the "feel" of pressure applied at the control lever 80. The braking force is applied (by means not shown) through a beam 30 pivoted at 34 and carrying a lever 40 on a pivot 44. This lever is biased down by a spring 92 so that its end 48 acts through a roller 62 to close a pressure modulating valve 54. Lifting the lever against this spring by means of linkage 88 and cylinder 84 which is slave to cylinder 78 operated by lever 80 serves to convey reduced pressure fed at 52 via line 60, valve 64 and gauge 66 and line 68, to a volume booster valve 56 which reduces the pressure in the cylinder 28 to allow the spring to act to apply the brake. The lever 38 has an arm 42 connected by a linkage 46, 24, 20, 18, and 12 to a lever 16 which may be used for direct operation of the brake. The powered action of the brake acts to apply a force on this system which tilts the lever 38 about its pivot and whose reaction is felt at lever 80 as a resistance or "feel" to its movement. This movement of the lever also serves to depress the cam roller 62 to prevent additional braking until further force is applied to the lever 80. Hence the braking force is proportional to the force applied to the lever 80. The system may include an automatic system 104, 106, 108, 114 connected to the lever by link 110. Residual braking when there is no pressure on handle 80 is provided by a counterbalancing air cylinder 201 adjusted at 203. (For Figure see next page.)
Patent GB-452870-A (GB)
Title: Improvements in display cabinets, show cases and the like
IPC: A47F1/12
Filed: 1935-03-05
Abstract: 452,870. Showcases; boxes. LAX, W. W., and ZENOBIA, Ltd., Woodgate, Loughborough, Leicestershire. March 5, 1935, Nos. 6965 and 12901. [Class 52 (i)] [See also Group XVII] A subdivided showcase, open at the front or at the top, is built up of detachable parts so that the sizes of the compartments may be varied or additional parts added, the compartments being provided with means 16, 17 for pressing the contents towards the open face. The open face is preferably oblique and the shelves and partitions are preferably telescopic. The walls and shelves are grooved internally to accommodate the adjustable partitions 28, 29 and external grooves 125 provide means of attachment for end plates 37 by which the sections are held together. Specification 419,302, [Group XVII], is referred to.
Patent GB-1023915-A (GB)
Title: Internal combustion engine valve mechanisms
IPC: F01L1/18
Filed: 1965-02-18
Abstract: 1,023,915. I.C. engine valve gear. GENERAL MOTORS CORPORATION. Feb. 18, 1965 [Feb. 21, 1964], No. 6994/65. Heading F1B. In I.C. engine valve mechanism the valve rockers 7 are journalled on semi-cylindrical bearing members 11 supported by a stud from the cylinder head, the bearing members 11 being keyed against rotation by a member 17 which similarly keys the bearing member of an adjacent valve rocker.
Patent GB-664059-A (GB)
Title: Method and apparatus for dyeing hides and skins
IPC: B05B12/12
Filed: 1949-03-15
Abstract: 664,059. Photo-electric control of dyeing- machines. GIRAUDO, E., GIRAUDO, G., AMMENDOLA, P., AMMENDOLA, S., PEPINO, L., and PEPINO, S. March 15, 1949 [April 2, 1948], No. 7038/49. Class 40 (iii). In a process for dyeing or coating hides or skins carried on an endless wire mesh conveyer, a photo-electric scanning unit and a plurality of sprayers spaced equidistantly along the conveyer are reciprocated synchronously in a direction transverse to the conveyer movement; the scanning unit operates a recording device in accordance with the skin area scanned and the recording device, moved synchronously with the conveyer, operates the sprayers at the successive positions as the skin previously scanned passes them. A motor drives, through a coupling G, gearing 4 and shaft 3, Fig. 1, the vertical wire mesh conveyer 1, and through shaft 5 and gearing 28, 6 drives a crank-disc 7 which through a connecting-rod 11, an oscillating slide 13 and links 55, 57 rocks a beam 20 about its pivot 18. The beam is connected at its ends by links 21 to carriages 22 slidable vertically on guide-rods 23 so that the carriages are reciprocated transversely to the conveyer movement. Further pairs of carriages, e.g. 22<SP>1</SP>, are similarly and synchronously reciprocated, each carriage pair being reciprocated by a beam 201 rocked through a link 58 from the slide associated with the preceding carriage pair in the sequence. The first carriage 22 carries a lamp and a photo-cell, the light from the lamp being reflected from a stationary mirror on to the cell except when the light is intercepted by a hide on the conveyer. A paper record strip 40, Fig. 8, is driven from a spool 41 to a spool 46 by driving rollers 33, 38, 39 rotated by the main driving motor. The strip 40 is perforated by a vibratory punch 49 each time the light beam is intercepted by a hide and the vibratory action of the punch causes the perforation to extend along the strip according to the interception time. The perforated record strip is read by contact pairs 50, 52 spaced along the strip path in correspondence with the equispacing of the sprayers which are mounted on all carriages 22, 221 subsequent to the first, so that as a perforation is " read " the associated contacts close to energize a solenoid to operate the corresponding sprayer. The number of sprayers corresponds to the number of coatings to be applied, the hides passing through drying stages between sprayers if necessary. The control circuit of the driving motor including safety arrangements therefor is described.
Patent GB-199089-A (GB)
Title: Improvements in the cooling of internal combustion engines
IPC: G05D23/12
Filed: 1922-03-10
Abstract: 199,089. Oliver, A. V. March 10, 1922. Thermostats.-In a thermostatic device for controlling the temperature of the cooling water for an internalcombustion engine or for similar purposes of the kind comprising an expansible chamber b containing a volatile liquid, the chamber is only partly filled with the liquid, e.g. water, under reduced pressure, and a spring d is arranged to act either internally or externally between the ends of the chamber. One end plate a is preferably tapped for attachment to a fixed support, while the other end plate c is conical and terminates in a hollow spigot j connected to the valve or other member to be controlled. A ball e and sealing-plug fare inserted in the spigot j after a small quantity of the liquid has been introduced into the chamber b and heated to boiling-point so as to expel air. The thermostat may be used to control the flow of water between an internal-combustion engine and a radiator, or to control the extent of opening of shutters arranged in front of a motor-car radiator.
Patent GB-574385-A (GB)
Title: Process and apparatus for the production of comminuted particles
IPC: B22F9/10
Filed: 1943-05-05
Abstract: 574,385. Metallic oxides and salts. HILLER, S. May 5, 1943, No. 7134. [Class 1 (iii)] [Also in Groups II, XXII and XXIX] Comminuted metal or compounds or derivatives, e.g., of lead &c. can be formed in the apparatus shown in which the molten metal 12 flows up by gravity through tubes 18 into a chamber 15, from which a rotated flinger wheel 16 projects it into a combustion chamber 21. The heavier particles fall down by gravity directly into the molten metal, and at a point distant from the wheel 16. The light particles proceed up the chamber 21 past jets 23, supplied with suitable gases either to ignite the particles to form various metallic oxides &c. or with an inert gas-or the jets are closed off entirely to form comminuted metal only. In some cases after the particles have been ignited by combustion gas from the jets 23 (for which a spark gap may be substituted) there is a sufficient temperature generated to allow the burning gas to be cut off so that combustion proceeds with an adequate supply of pre-heated air from the supply pipes 26. Zinc or tin may become ignited and burnwithout any pre-ignition to start combustion. At the top of the combustion chamber 21 is a dome 34 which can be raised or lowered to vary the draft intake at A and to affect the metal in the secondary burning zone 33, to form, e.g., suboxides or mixture of part metallic particles and oxides or other derivatives or A is closed to produce pure metal particles only, or the sulphides, chlorides, carbonates, or metallic derivatives other than oxides. Antimony, cadmium, zinc, magnesium, aluminium or their alloys may also be comminuted. The jets 23 are adapted to burn a light fuel, gas or oil, from pipes 24, e.g., water gas methane hydrogen sulphide or a halogen and are supplied with air or oxygen through pipes 26. The jet may be used to introduce an inert gas, e.g., helium carbonmonoxide, nitrogen &c. The atomizing chamber 15 may be pre-heated through a duct 13, led off the preheat supply of the melting vessel 11. To assist the drop back of the larger metal particles direct into the molten metal, a heavy striking plate may be located in the chamber. The particles so formed can be used in metallic paints storage batteries &c. The combustion chamber 21 may be horizontal. Specification 519,784 is referred to.
Patent GB-594286-A (GB)
Title: Method and apparatus for controlling fractional distillation
IPC: B01D3/42
Filed: 1944-04-18
Abstract: <PICT:0594286/III/1> Continuous fractionation is controlled to obtain overhead and bottoms products of constant composition by placing a pressure-responsive closed element containing a fluid within the fractionating column at a selected point, and this element, by expansion or contraction of a flexible wall, adjusts one of the following operating conditions (1) the rate of overhead take-off, (2) the rate of reflux return, (3) the supply of heat to the reboiler. The fluid within the element should preferably correspond to the material which it is desired to maintain in the column at the control point and, in any case, should have known vapour pressure characteristics.  The third mode of control is shown in the fractionating system of Fig. 1 which comprises column 15, condenser 31 and reboiler 20, maintained under fairly constant operating pressure by control valve 37 which can release uncondensed vapours from the system, or if total condensation is effected in condenser 31, by control valve 371.  A cylindrical vessel or hydron, of annular cross-section and flexible bellows-like walls, containing the reference fluid is fixed by its base to a bracket in column 15 (see Fig. 4).  Any change in the difference in the pressures within the hydron and of the surrounding vapours in the column, causes the upper end of the hydron to move up or down, and this linear movement is translated, by a torsion mechanism, into rotation of a shaft which extends through flange 50 to the operating mechanism of instrument 45 (see Group XXIX) which adjusts, via line 82, the device 26 regulating the flow of heating medium to the reboiler 20.  In the second mode of control, the hydron and instrument 45 are placed near the top of the column and adjust the device <PICT:0594286/III/2> regulating the admission of steam to the steam-operated pump lifting the reflux from the accumulator to the head of the column. Finally in the first mode of control, instrument 45 is connected to the diaphragm of a valve in the line through which the heads are withdrawn from the column and the operating pressure in the latter is maintained substantially constant by a separate instrument connected to the column and also to the diaphragm of the valve regulating the supply of heating medium to the reboiler. The fractionation of natural and processed hydrocarbons is referred to.
Patent GB-830868-A (GB)
Title: Compositions for treating animals to eliminate hookworms and ascarids
IPC: A61K31/495
Filed: 1958-03-06
Abstract: A veterinary anthelmintic composition comprises as active ingredients in admixture: N-phenyl-N1-dichloroacetylpiperazine and 1-diethylcarbamyl - 4 - methyl piperazine.  It may be mixed with animal foodstuffs or with pharmaceutical carriers when it may also be administered directly and may be given in unit dosage form affording 0.5 to 8.0 mg/kg. body weight of the former and 2.5 to 200 mg/kg. of the latter per day.
Patent GB-164159-A (GB)
Title: A new or improved black rubber compound
IPC: C08L19/00
Filed: 1920-03-11
Abstract: 164,159. Crozier, A. A. March 11, 1920. Plastic compositions containing india-rubber, waste rubber, and substitutes.-A black rubber compound containing no litharge, consists of about 22lb. black bus or other tyre scrap, 101b. black rubber heel trimmings, spewings, or the like previously vulcanized or not, 31b. carbon black or other black pigment, 131b. magnesium oxide, “lb. sulphur, “lb. lime, 7lb. rubber reclaim preferably red, 4lb. raw rubber, and 2lb. floating substitute. The composition is vulcanized in an ordinary press for 25 minutes with 5 minutes blow, and is specially suitable for heels, tips, soles, and the like.
Patent GB-215897-A (GB)
Title: Means for introducing capacity effects in alternating electric current systems and apparatus
IPC: H01G9/022
Filed: 1923-03-14
Abstract: 215,897. Wall, T. F. March 14, 1923. Electrolytic condensers.-In order to prevent deterioration of the electrodes of the condenser described in Specification 215,129, in which plates covered with an oxide of lead such as the sesquioxide or suboxide are immersed in dilute sulphuric acid, an oxidizing agent such as nitric acid is added to the electrolyte. Specification 198,509, [Class 53, Galvanic batteries], is also referred to.
Patent GB-673769-A (GB)
Title: The production of chlorine dioxide
IPC: C01B11/02
Filed: 1950-03-23
Abstract: <PICT:0673769/III/1> Chlorine dioxide is produced by reacting a gaseous mixture containing diluent gas and nitrogen dioxide, say at least 2 per cent, and an aqueous solution of a chlorate, e.g. of an alkali or alkaline earth metal such as sodium, lithium, calcium, or magnesium, containing at least 2 gram ions per litre of chlorate ion advancing through the reaction zone as a thin film, and withdrawing spent liquor and the chlorine dioxide-diluent mixture from the zone. The nitrogen dioxide may be mixed with the diluent gas, e.g. air, nitrogen, carbon dioxide, or oxygen, constituting, say not more than 80 per cent of the mixture and may include water vapour, or alternatively the nitrogen dioxide-diluent mixture may be produced by passing air through an electric arc.  The ratio of nitrogen dioxide molecules to chlorate ions in the reaction zone should not be greater than 2:1.  Concentrated chlorate solution is passed at controlled rate from tube 18 into tower 10, which is filled with granules or pellets 15, having a large surface area per unit volume of reactor, say at least 11 sq.cm., per c.c., resting on perforated partition 11. Dilute nitrogen dioxide enters at 24 and flows cocurrent with the chlorate solution, which forms a thin film over the exposed filling. Dilute chlorine dioxide and spent solution are withdrawn at 25, 13, respectively. Suitable fillings are pumice, silica gel, or alumina with at least 30 per cent porosity.  Specifications 595,528 and 666,677 are referred to.
Patent GB-1374531-A (GB)
Title: Pipe clips
IPC: F16L3/237
Filed: 1972-02-17
Abstract: 1374531 Pipe supports CTC GmbH 17 Feb 1972 [30 April 1971] 7448/72 Heading F2P [Also in Division E2] A clip for fixing a pipe 2 to a wire 6 of a wire mat comprises a cradle portion 4 for the pipe and a clasp portion 5 to grip the wire so that the portion 5 forms a spacer between the mat and surface on which the clip seats. The clip is formed integrally from a plastics material and the openings of the two portions may face in opposite directions as shown or in the same direction (Figs. 2 and 4, not shown). The cradle portion may be shaped to hold two parallel pipes in contact with each other (Figs. 4 and 5, not shown) and the clasp portion may have two pairs of clasps with the axes of each pair at right angles to each other so that the clip can be clamped on to wires parallel to the pipe or transverse thereto. The clip is primarily for'use in a heating and/or cooling system where the mat is to be embedded in a layer of material in which case the material of which the clip is made has the same coefficient of expansion as the embedding material.
Patent GB-139324-A (GB)
Title: Improvements in or relating to spring systems for motor vehicles
IPC: B60G11/04
Filed: 1919-03-25
Abstract: 139,324. Waverley Cars, Ltd., and Watkins, A. A. March 25, 1919. Laminar springs.-Quarter-elliptic springs for the back axle of motor-vehicles are arranged in pairs on each side of the chassis, the springs in each pair being of different curvatures. The butt ends of the springs a, b are attached to a block e on the chassis, and the free ends are attached to a bracket c in which one end of the driving-axle is mounted. The upper spring a is of less curvature and may be longer than the lower spring b.
Patent GB-235819-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/42
Filed: 1924-03-14
Abstract: 235,819. Automatic Telephone Manufacturing Co., Ltd., and Ostline, J. E. March 14, 1924. Drawings to Specification. Automatic exchange systems; metering.-In a register-controller system, an off-normal spring- group closed on the first vertical step of the first group selector, causes an attendant's supervisory lamp to be lighted and a number-obtainable tone to be transmitted from the outgoing trunk from which access is had to the register-controller, if the calling party dials before a register-controller is engaged, or if he unduly delays dialling. If the calling party dials before receiving the dialling tone, the first selector makes a single vertical step, causing the energization over the off-normal contacts of a relay which prevents the seizure of a register-controller or register-controller selector, causes a supervisory lamp to be lighted, and connects a number-unobtainable tone to the calling subscriber. Should the calling party omit to dial any digits or unduly delay dialling, after a determined interval, the register-controller is released and the supervisory lamp lighted. When the number is eventually dialled, the first selector is raised one step and number-unobtainable tone is connected up. If the calling subscriber unduly delays dialling between digits, omits to complete dialling, or dials a non-existing exchange, or if the register-controller does not complete impulse re-transmission, the register-controller is released, the lamp is lighted, and the number-unobtainable tone is given to the calling party. Arrangements are also provided whereby a supervisory lamp is lighted over operated contacts of the meter magnet if the calling party omits to hang up after conversation. The invention is described in a system employing register-controllers of the code-translating type and which is identical with part of the system described in Specification 233,007, which claims other features. Specification 194,580 is referred to in the Provisional Specification.
Patent GB-908779-A (GB)
Title: Photo-conductive layers for use in electrophotography
IPC: G03G5/087
Filed: 1959-03-04
Abstract: A photoconductive composition for use in electrophotographic plates (see Group XXXVI) comprises a dielectric film forming binder in which are dispersed particles of a photoconductor and similar or smaller particles of another material or materials. The other materials should with the binder constitute at least 26% by volume of the composition, which preferably contains 1 part of the photoconductor per 0,3 to 2 parts by weight binder.  A large number of suitable other materials, both organic and inorganic, are listed in the Specification.  A typical composition consists of photoconductive granular zinc oxide, zinc sulphide of smaller grain size and a silicone resin, mixed with toluene for application to a substrate. In other compositions using silicone resin as binder, titanium dioxide, powdered glass, calcium carbonate, p-terphenyl, and phthalic anhydride are used instead of zinc sulphide.  In another example photoconductive zinc oxide is mixed with insensitive zinc oxide or carbazole and a binder consisting of the reaction product of 3 mols. of phthalic anhydride, 3 mols. of trimethylol propane, 1 mol. of pentaerythritol and 5 mols. of cyclohexyl isocyanate.  Another example uses this binder with the photoconductor antimony sulphide, and sulphur.  In yet another composition using polyacrylonitrile as binder zinc oxide is used as photoconductor and benzoic acid or aminophenyl as additive.  Finally a composition comprising particles of photoconductive zinc oxide and barium hydroxide in a cellulose acetate binder is described. Specifications 633,849, 672,767, 679,533, 775,812, 798,184, 811,165, 818,068 and U.S.A. Specifications 2,727,807, 2,727,808, 2,735,784 and 2,735,785 are referred to.