baber/WOPTO huggingface dataset:
Patent GB-238735-A (GB)
Title: Improvements in dry batteries
IPC: H01M6/42
Filed: 1924-10-15
Abstract: 238,735. Levy, L. A. Oct. 15, 1924. Cells; cases.-In order to minimize leakage between the terminals of dry batteries, the sealing material is provided with grooves or other irregularities. Figs. 1 and 2 show in elevation and plan a dry battery for wireless purposes, having sockets c separated by grooves d in the sealing compound.
Patent GB-771288-A (GB)
Title: Damper winding for electric machines with multiple winding
IPC: H02K3/16
Filed: 1955-08-26
Abstract: 771,288. Windings for dynamo-electric machines. AKT.-GES. BROWN, BOVERI & CIE. Aug. 26, 1955 [Sept. 1, 1954], No. 24610/55. Class 35. In machines having a multiple parallel winding e, f with equalizing connections g passing beneath the core, as shown in Fig. 1, short-circuited damping windings a, as shown in Fig. 3, are arranged parallel and close to the equalizing connections for the purpose of improving commutation. Both the equalizing connections and the damping winding pass through the apertures between the spider arms supporting the core F to produce tight inductive coupling. The damping winding may be of sheet metal as shown or may consist of a series of separate shorted turns. Alternatively, the holes through which the equalizing conductors pass may be lined with sheet metal dampers joined at their ends.
Patent GB-316793-A (GB)
Title: Improvements in and relating to animal collars
IPC: A01K27/00
Filed: 1928-08-27
Abstract: 316,793. Branner, G. R. Aug. 29, 1928. Mange in animals, appliances for treating.-A collar for animals designed to prevent the spread of mange and like diseases has a copper lining 14 secured by copper rivets 15 with rounded heads 16 which ensure contact with the neck of the animal. The copper lining may be treated with a solution of common salt to facilitate corrosion.
Patent GB-782319-A (GB)
Title: Improvements in or relating to apparatus for reproducing a series of signals
IPC: G10K15/10
Filed: 1955-08-29
Abstract: 782,319. Magnetic recording and reproducing apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 29, 1955 [Sept. 1, 1954], No. 24724/55. Class 40 (2). A series of signals with an echo effect is reproduced by recording the signals on a carrier 1 in the form of an enclosed loop with a magnetic head 2 with additional alternating current and reproducing said signals during the recording of further signals of the series by one or more heads 5, characterized in that the said additional current has a value such that each time previously recorded signals of the series passes the recording head 2 the signal is erased in part and to an extent dependent on the amount of echo effect desired.
Patent GB-970229-A (GB)
Title: A pressure casting machine
IPC: B22D31/00
Filed: 1963-06-21
Abstract: 970,229. Pressure casting machines. A .B. ZUEV, V. P. SAVITSKY, and G. E. GALAIDA. June 21, 1963, No. 24725/63. Heading B3F. A pressure casting machine has a discard ejector mechanism which comprises a hammer 1, mounted on the machine frame, which is moved upwards by a flange 5 upon the downward movement of the ram 3. The hammer head engages a spring-biased latch 7 which is controlled by a solenoid 12. When the ram 3 raises the plunger 6 out of the injection cylinder 13 an ejector ram 8 moves upwards with the discard and a projection on the ram 8 engages a switch 11 which operates the solenoid 12 to withdraw the latch 7 permitting the hammer to swing downwards to knock the discard 14 sideways into a container 16.
Patent GB-1524180-A (GB)
Title: Antibacterial compositions
IPC: A61P31/04
Filed: 1977-06-14
Abstract: 1524180 Anitbiotic compositions FUJISAWA PHARMACEUTICAL CO Ltd 14 June 1977 [18 June 1976] 24737/77 Heading A5B Antibiotic compositions comprise Nocardin A of formula: or a salt thereof, and cycloserine or a salt thereof.
Patent GB-953350-A (GB)
Title: Silicone rubber-forming compositions
IPC: C08L83/04
Filed: 1960-07-15
Abstract: A silicone rubber-forming composition, curable at room temperature under the influence of water or water vapour, comprises an anhydrous linear organopolysiloxane containing terminal Si-bonded hydroxy, alkoxy or aroxy-radicals, an anhydrous cross-linking agent, which is an orthosilicate, organoalkoxysilane or a partial hydrolysate thereof, and an anhydrous condensation catalyst.  Fillers, when used, are also essentially anhydrous. The starting components are disclosed in Specification 841,825, but in that Specification the components were not anhydrous or dried.  The components are in general used in amounts of 0.1 to 50 parts (by weight) of cross-linking agents, 0.01 to 10 parts of catalyst and up to 300 parts of filler per 100 parts of siloxane. The anhydrous components may be mixed together in an anhydrous atmosphere or in an anhydrous organic solvent. Examples are given.
Patent GB-481521-A (GB)
Title: Improvements in liquid deficiency safety devices for gas-heated liquid heaters
IPC: F24H9/20
Filed: 1936-09-11
Abstract: 481,521. Gas valves. ASKANIAWERKE AKT.-GES. VORM. CENTRALWERKSTATT DESSAU UND C. BAMBERG-FRIEDENAU. Sept. 11, 1936, No. 24843. Convention date, Oct. 3, 1935. [Class 135] In a liquid-deficiency safety device for gasheated liquid-heaters in which the gas valve 16 is controlled by a member 15 responsive to the pressure difference created by an adjustable throttle device 6 in the main liquid path 3, 4, an auxilary throttling device 8 arranged to close upon or after complete opening of the main throttle device is provided in the connection 10, 12 between the high pressure side of the member 15 and the high pressure side of the main throttle, and a restricted byepass 11, 13 con. nects the two sides of the pressure responsive member. As shown, the throttle members 6, 8 are moved together between openings 7, 9 by a spindle having a handwheel 5. The member 15 may be a diaphragm as shown or a disc. The device may be used with apparatus in which pre-heated water of varying temperature is raised by further heating to a definite temperature and in this case, the throttle members are adjusted by a heat-responsive member in the main liquid path. In this way the rate of water flow permissible for the gas valve to remain open is too high for overheating to take place.
Patent GB-1115432-A (GB)
Title: Electronic switching apparatus
IPC: G06G7/02
Filed: 1965-06-11
Abstract: 1,115,432. Switching circuits; keying carrier frequencies. APPLIED DYNAMICS Inc. 11 June, 1965 [11 June, 1964], No. 24875/65. Headings H3R and H3T. In a switching circuit the input signal controls the application of R.F. (over 500 kc/s.) to a transformer (e.g. by keying an oscillator or gating its output) whose rectified unsmoothed output operates the switching transistor. In Fig. 1 the 19 Mc/s. R.F. signal is generated by an oscillator Q-2 which is shunted by a transistor Q-1 . With no input at 10, Q-1 is non-conducting and Q-2 oscillates, but application of a - 6 v. signal at 10 turns on Q-1 and short-circuits the oscillator. The R.F. signal is applied to the switching transistors 13 via an air-cored screened transformer T-1 nominally balanced to earth, but provided with a trimmer capacitor C-T to compensate for residual asymmetry. The transformer output is rectified by diodes CR-1 and CR-2 but is unsmoothed for fast response; the whole secondary circuit is floating as regards earth. The switching transistors can comprise four junctions on the same crystal. The oscillator frequency should be at least twice the reciprocal of the recovery time of the switching transistors. Instead of the rectifier circuit shown, half-wave rectification may be used, or (Fig. 3, not shown), this may be performed by the base-collector junctions of the switching transistors. For multiple switching, the same oscillator may feed a number of transformers and switching transistors, or a plurality of oscillators may be used. The switching transistors may be PNP. The circuit is useful for switching the inputs to summing and integrating amplifiers in analogue computers.
Patent GB-1108214-A (GB)
Title: Interferometric measuring system
IPC: G01B9/02
Filed: 1966-06-03
Abstract: 1,108,214. Counting apparatus. KEARNEY & TRECKER CORPORATION. 3 June, 1966 [29 July, 1965], No. 24972/66. Heading G4D. [Also in Divisions G2 and H1] An interferometer comprises a laser 48, a prismatic element 32 having a partially transparent interface 43 which divides a collimated beam of light from the laser 48 into a reference beam 55 and a variable length measuring beam 56, a relatively movable prismatic reflector 33 which receives the beam 56 and returns it in spaced, parallel relationship towards the element 32, and means for recombining the measuring beam with the reference beam to set up interference fringes. In the embodiment of Fig. 1, the reference and measuring beams are recombined by a second partially transparent interface 45 of the prismatic element 32. The two resulting sets of fringes are received by photo-detectors 78, 83. The laser 48, the prismatic element 32 and the photo-detectors are all fixed to a stationary machine while the prismatic reflector 33 is fixed to a movable part of the machine. In this way the position of the movable part may be accurately determined. In a modification, the returned measuring beam is reflected by a reflecting surface of the prismatic element towards the interface 43 to produce a single set of interference fringes. In both arrangements a quarter-wave plate 70 is bonded to the prismatic element 32 in such a position as to extend partly across the returned measuring beam. This beam is thus divided into two phase differentiated components. Masks are arranged in front of the photo-detectors 78, 83 so that two phase differentiated sets of fringes actuate the detectors. The output from the detectors comprises two electric signals 90 degrees out of phase which operate a bidirectional counting circuit, by means of which the direction and extent of relative movement between the prismatic element 32 and the prismatic reflector 33.
Patent GB-205798-A (GB)
Title: Improvements in yarn winding-frames having a slotted drum provided with a yarn-guide
IPC: B65H54/28
Filed: 1923-10-08
Abstract: 205,798. Ateliers Roannais de Construction Textile. Oct. 17, 1922, [Convention date]. Thread-guides.-The yarn-guide p, in a drum winding-machine, is formed of piano-wire, and comprises a block e provided with a pin d which enters the cam-slot a, and a length of wire arranged to form two sets of bearing-surfaces f, i, which slide on parallel rods g, j. To remove the pin d from the slot a, the rod j is moved angularly about the rod g which is fixed. The angular motion of the rod is controlled by a stop on the unclutching lever k, a spring o acting to maintain the pin d in the slot a. Buffer springs q are provided on the rod g.
Patent GB-1220784-A (GB)
Title: Non-agglomerating rubberlike polymer compositions
Inventor: PEYRADE JEAN
IPC: C08L21/00
Filed: 1969-05-16
Abstract: 1,220,784. Non-agglomerating polymer-rubbery polymer compositions. PRODUITS CHIMIQUES PECHINEY - SAINT - GOBAIN. 16 May, 1969 [17 May, 1968], No. 25036/69. Addition, to 1200,532. Heading C3P. A composition comprising 50 to 77% of a rubbery polymer and 50 to 23% of a non- agglomerating polymer and an apparent density of 0À3 to 0À65 g./c.c. is obtained by coagulating a rubbery polymer latex, mixing the coagulate under agitation with 30 to 100% of a non- agglomerating polymer in the form of a latex, and separating, washing and drying the product. The non-agglomerating polymer has a second order transition temperature above 0‹ C. and a modulus of elasticity under stress of above 1000 kg./cm.<SP>2</SP>. Optionally a mixture of rubbery polymer latices or of a rubbery polymer latex with a non-agglomerating polymer latex may be coagulated in the initial step. The coagulate-latex mixture may be subjected to heat treatment prior to coagulation. In examples, a butadiene-acrylonitrile or a butadienestyrene-acrylonitrile-divinylbenzene copolymer is used as rubbery polymer and the non- agglomerating polymer is polyvinylchloride, polymethylmethacrylate or a styrene-acrylonitrile copolymer, a latex of these polymers in some cases also being included in the rubbery polymer latex prior to coagulation. The compositions may be compounded with other polymers, examples relating to styrene-acrylonitrile copolymer and polyvinyl chloride, the mixtures also including glycerolmonostearate and an organotin stabilizer.
Patent GB-638315-A (GB)
Title: Improvements in or relating to separators for separating liquid particles from air or gas
IPC: B01D45/08
Filed: 1947-09-12
Abstract: <PICT:0638315/III/1> In a separator for separating liquid particles, e.g. of oil, from air or gas, the mixture passes through the conduit in end cover 2 into chamber 12 from which it is directed by louvres 10 to impinge at an angle less than a right angle on perforated chamber 13 where the liquid particles separate, fall into casing 1 and are withdrawn through outlet 5, the gas passing out through the conduit in end cover 3.
Patent GB-1164546-A (GB)
Title: Sprayer Apparatus
IPC: B64D1/16
Filed: 1967-05-31
Abstract: 1,164,546. Crop spraying. AMCHEM PRODUCTS Inc. 31 May, 1967 [31 May, 1966], No. 25075/67. Heading AID. [Also in Division B2] Apparatus is adapted for spraying herbicides from a helicopter or other moving vehicles comprises a row of nozzles 18 discharging liquid in an opposite direction to the direction of motion of the vehicle in such a way that the liquid forms a laminar flow stream, in order to produce uniform droplets. In one embodiment of the invention, liquid is supplied under pressure by gravity or pumping action to a pipe 14 from which it is distributed at substantially equal pressure to a plurality of pipes 16 each carrying a plurality of nozzles 18. A ball valve 48 is provided in a delivery tube 26 between the pipes 14, 16, the ball valve being baised by a spring 42 to close the liquid flow passage, and opening under the action of the liquid pressure. Further ball valves 68 are provided in each nozzle 18 to prevent dripping from the nozzles when the liquid flow is shut off. The ball valves 68 may be biased by a spring or by gravity to close the liquid flow passage. The apparatus may be mounted on the skids of a helicopter (Fig. 1 not shown). In an alternative embodiment, (Figs 7-9 not shown), the pipes 16 are replaced by pipes (102) of aerofoil cross-section, a plurality of nozzles (112) being provided in the trailing edge thereof, and the pipe is filled with an absorbent material (106) such as sponge which equalizes the pressures at the nozzle outlets and prevents drip when the liquid flow is shut off. The nozzles may be provided with vanes to ensure that the nozzles are held between air currents.
Patent GB-302419-A (GB)
Title: Apparatus for delivering aerated water, beverages and the like
IPC: B67D1/02
Filed: 1927-09-23
Abstract: 302,419. Whalley, H. G. L. de. Sept. 23, 1927. Lever-actuated pumps; single-acting suctionvalveless pumps. - Apparatus for delivering beverages &c. comprises a container 1 with a removable cover 2 carrying a pump barrel 5, 6 provided with inlet ports 9 which are uncovered by the piston 8 at the bottom of its stroke. During the upstroke, the liquid is delivered through a pipe 22 which passes through the cover 2 and ends in an aerating nozzle as described in Specification 288,349, [Class 69 (iii), Sprayproducers &c.]. The piston is actuated by a bell-crank lever 20 pivoted on the cover and connected to the piston rod by links 17 and a cross-head. The barrel 5 is separated by a partition 7 from the casing 6 enclosing the actuating gear.
Patent GB-1005761-A (GB)
Title: Oxymethylene copolymers
IPC: C08G2/00
Filed: 1964-06-18
Abstract: An oxymethylene copolymer contains units of formula <FORM:1005761/C3/1> where X is <FORM:1005761/C3/2> or a substituent derived from an alkali or alkaline earth metal salt of a carboxylic acid containing from 1 to 10 carbon atoms and R is an alkyl, aralkyl, aryl or alkylene group containing from 2 to 10 carbon atoms and n1 and n2 are positive integers, preferably constituting from 0.1 to 20% of the copolymer. Specified comonomers are divinyl sulphone, glycidonitrile, ethylglycidate and methylglycidate. The copolymerization may take place in bulk or in the presence of a solvent or nonsolvent in the liquid phase or mixed as vapours and polymerized to a solid by quenching the heated vapour.  Catalysts may be used, e.g. protonic or Lewis acids.  Specification 809,754 is referred to.
Patent GB-912529-A (GB)
Title: Improvements in the production of copolymers
Inventor: BRYANT PATRICK SAMUEL
IPC: C08J3/00
Filed: 1960-07-20
Abstract: A crystallizable copolymer of vinylidene chloride normally in the amorphous state when prepared by an emulsion polymerization process is crystallized by a process comprising the steps of coagulating the latex and subjecting the coagulum to heat treatment in one or more further stages.  The copolymer may be with vinyl chloride, acrylonitrile, methacrylonitrile and alkyl esters of acrylic and methacrylic acids.  Minor amounts of a third monomer such as maleic, fumaric, itaconic and aconitic acids may also be present.  The emulsion is coagulated by at least its own volume of an electrolyte such as aluminium sulphate and in the examples is then subjected to heat treatment in vessels in cascade, each vessel of which is preferably at a higher temperature than the preceding one.  The resulting slurry may be spray-dried.
Patent GB-1376645-A (GB)
Title: Communication system
IPC: H04L12/46
Filed: 1972-05-31
Abstract: 1376645 Digital transmission; stations connected on a loop INTERNATIONAL BUSINESS MACHINES CORP 31 May 1972 [30 June 1971] 25362/72 Heading H4P  A number of stations 1-4 &c. are connected to a common loop 10 together with a control unit 12, which at the initiation of each interrogation cycle transmits a character P1 clockwise round the loop, each station having a message to transmit opening a normally closed by-pass switch 20. Unit 12 then transmits a P2 character which is stopped at the first open switch, this station then transmitting another character P2 which closes subsequent open switches and instructs these stations they may not transmit at that time. The first station now transmits its message and if plural transmits P1, P2 between messages to maintain communication. At the end of message transmission the first station then sends P1, P2 characters hence the next station having messages to transmit will assume control.  Failure of a single station will effect operation of the entire loop hence a plurality of loops (e.g. Fig. 4, not shown) may be employed so that failure of a station on one loop does not affect the other loop. Control unit 12 is adapted to bridge adjacent parts of loops and cause transfer of data from one to the other, operation of stations on each loop being as described with reference to Fig. 1. In this case the loop bridging control units (28) must be provided with storage as in certain conditions data may be received from one loop but be unable to transmit on the other; additionally addresses must be transmitted and recognized in order that messages will be routed to the appropriate loop.
Patent GB-824710-A (GB)
Title: Improvements relating to thermoplastic polyolefinic coatings
IPC: H01B3/44
Filed: 1957-08-12
Abstract: The heat-stress cracking resistance of a thermoplastic polyolefine coating is increased by heating the surface only of the coating above its melting point but below the temperature at which it becomes fluid, and quenching said surface to a temperature below its melting point.  A coating may be applied to wire by extrusion, by wrapping the wire in polyolefine tape followed by fusion or by sandwiching it between two layers of polyolefine tape and shaping the coating with grooved steel rollers.  The surface is then heated until a clear layer forms thereon, and may be quenched by immersion in water. Coatings may also be applied to metal pipe and wood members. Suitable polymers are those of ethylene, ethylene containing up to 30% of propylene, 1-butene or 2-butene, and ethylene containing up to 3% of mono-olefinic co-monomers with from 5 to 12 carbon atoms. Suitable polymers have a density of at least 0.92, a softening temperature of at least 235 DEG  F., and a melt index of not more than 5.  Specifications 790,195 and 804,641 are referred to.ALSO:The heat-stress cracking resistance of a thermoplastic polyolefine coating is increased by heating the surface only of the coating above its melting point but below the temperature at which it becomes fluid, and quenching said surface to a temperature below its melting point.  A coating may be applied to wire by extrusion, by wrapping the wire in polyolefine tape followed by fusion or by sandwiching it between two layers of polyolefine tape and shaping the coating with grooved steel rollers.  The surface is then heated until a clear layer forms thereon, and may be quenched by immersion in water. Coatings may also be applied to metal pipe and wood members. Suitable polymers are those of ethylene, ethylene containing up to 30% of propylene, 1-butene or 2-butene, and ethylene containing up to 3% of monoolefinic co-monomers with from 5 to 12 carbon atoms. Suitable polymers have a density of at least 0.92, a softening temperature of at least 235 DEG  F., and a melt index of not more than 5.  Catalysts which may be used for the polymerization process include a mixture of chromium oxide, silica and alumina, organometallic compounds such as trimethyl aluminium with titanium tetrachloride, and mixtures of ethylaluminium halides with titanium tetrachloride.  Specifications 790,195 and 804,641 are referred to.
Patent GB-1029408-A (GB)
Title: Electric incandescent lamp with a tubular envelope
IPC: H01K1/24
Filed: 1963-06-26
Abstract: 1,029,408. Electric incandescent lamps. PATENT - TREUHAND GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN. June 26, 1963 [July 4, 1962], No. 25410/63. Heading H1F. The coiled wire filament of a tubular lamp has at least one intermediate support of wire bent to form two arms in a plane at right angles to the lamp axis, the bent section and the ends of the arms bearing against the envelope wall, each arm crossing a plane through the lamp axis and a part on the bent section at least once, one at least of the arms being bent so that together they prevent displacement of the filament in the plane perpendicular to the lamp axis. In one form the support consists of two bracing arms formed by a wire bent back at a sharp angle, the arms being arched between the angle and the vicinity of the filament, bent at an angle and continued as straight crossing sections which bear on the opposite side of the envelope. In another form, the central section 6 is followed by crossed arms 7 which are bent at 8 in the vicinity of the filament 2 and then doubled back at 9 in the vicinity of the plane E through the central section and tile axis of the filament. In the modification one arm 11 extending from the central section is straight and the other arm follows the curvature of the filament arch. In a further modification, both arms are curved to follow the curvature of the filament coil. The central section may have portions parallel to the axis of the tube and the bracing arm ends may be bent to lie along the tube parallel to the axis.