baber/WOPTO huggingface dataset:
Patent GB-595482-A (GB)
Title: Improvements in and relating to means for marking livestock
IPC: A01K11/00
Filed: 1945-07-05
Abstract: 595,482. Marking animals. COOPER, C. M. July 5, 1945, No. 17125. [Class 100 (ii)] [Also in Groups XV and XXIII] A tool for marking livestock or carcases consists of a tubular body and pistol grip handle D in which two partitions A, B, having central holes are mounted. The rod of a piston passes through these holes and a spring is mounted in the tubular body between the partition A and the die-holder which forms the piston head. A ring C mounted on the piston rod between partitions A, B, co-acts with a lever-operated pawl J to-draw the die back against the action of the spring and release it at the end of its movement. The ring C is so shaped at the back that the pawl on its return movement rides over it and re-engages the front surface against the action of a weak spring H. The lever E which operates the pawl J also is connected to a die protector shield which slides on the tubular body. The die consists of needles which are barbed, grooved &c. to hold the ink. The Provisional Specification describes a tubular body having two slots diametrically opposite each other, the piston being provided with projections which slide in these slots. The die is retracted against spring pressure and is held in the rearward position by the projections on the piston co-acting with @sides of wider openings at the ends of the slots.
Patent GB-1503247-A (GB)
Title: Preparation of vinyl chloride polymers
IPC: C08F2/00
Filed: 1976-04-28
Abstract: A method for preparing polymers of vinyl chloride in which polymerization of the corresponding monomer or monomers is carried out in microsuspension in the presence of a seeding product in the form of a dispersion of particles of a vinyl polymer previously prepared by polymerization in microsuspension, the particles of which contain at least one organic soluble initiator, without any complementary addition of initiator and in the presence of one or more other seeding products in the form of dispersion of vinyl polymer, the sizes of which differ from one another and from the particles of the first seeding product.
Patent GB-1309867-A (GB)
Title: Fusing device for electrophotography
IPC: G03G15/20
Filed: 1971-05-26
Abstract: 1309867 Electro -photographic fixing  apparatus EASTMAN KODAK CO 26 May 1971 [1 June 1970] 17357/71 Heading G2H [Also in Division H5] Electro-photographic fixing apparatus comprises at least one electrical heater strip 10; the surface S 1  of the strip that faces the image bearing element 46 being treated to enhance infrared emission and the other surface S 2  being treated to minimize emission of all radiation. Surface S 1  may be roughened by sandblasting or etching and/or may be coated e.g. with black colloidal gold. Surface S 2  may be polished or coated with a reflective material. Preferably there is a plurality of strips 10 arranged in parallel and tensioned by springs 30. Image bearing member 46 may be fed past strips 10 by a porous reflective belt 44 passing under a vacuum chamber 36.
Patent GB-1535258-A (GB)
Title: Internal combustion engines and method of operation thereof
IPC: F02B25/14
Filed: 1976-04-28
Abstract: 1535258 Two-stroke engines OUTBOARD MARINE CORP 28 April 1976 [22 May 1975 20 Feb 1976] 17357/76 Heading F1B A chamber 51, 251 is supplied with air during a first part of the piston reciprocation adjacent t.d.c. in response to sub-atmospheric pressure, isolated from the cylinder 15, 215 and crank-case 17, 217 during a subsequent second part of the piston stroke from t.d.c., opened to the cylinder on a third part of the stroke and on the final part of the stroke fuel is supplied to the cylinder. In the embodiment of Figs. 2 and 3 the chamber is subject to crank-case suction via a cylinder port 61 and piston skirt notch 63 adjacent t.d.c. and air is drawn into the chamber through reed valves 59. Subsequently the piston 19 uncovers an exhaust port 25 and a port 65 in the piston connects the crank-case 17 to the port 61, preferably just prior to opening of the chamber ports 53 to the cylinder 15, so that air in the chamber 51 is pressurized and flows into the cylinder to scavenge the exhaust gases. The piston then uncovers transfer ports (31), Fig. 1 (not shown), of transfer passages (29), open permanently to the crank-case, for flow of fuel-air mixture. In the embodiment of Figs. 7 and 11 the chamber 251 has air discharge ports 253 which are opened, for discharge of air drawn into the chamber adjacent piston t.d.c. and heated during isolation of the air from the crank-case 217, prior to communication of a piston port 275 with a mixture transfer port 257 and thus communication of the chamber with the crank-case. Mixture is drawn into the crank-case 217 from a carburetter 231 via a reed valve 235 which opens at a lower pressure than the air inlet reed valves 283. A camshaft operated valve system or a rotary valve could provide the timed communications. The air or mixture could be pumped by a stepped piston or a blower and/or a stepped piston could provide the sub-atmospheric pressure. The crank-case mixture may be produced by fuel injection into air drawn into the crank-case through the chamber 251. Air may be introduced subsequent to initial mixture introduction to the cylinder to provide a stratified charge. The engine may be cross or loop scavenged.
Patent GB-400340-A (GB)
Title: Improvements in or relating to signalling or indicating apparatus actuated by the passage of a vehicle
IPC: H01H3/24
Filed: 1932-06-20
Abstract: 400,340. Road signals for controlling traffic. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd. and CASTLE, F. L., Caxton House, Westminster. June 20, 1932, No. 17434. [Class 118 (ii).] A road pad comprises a body of resilient material 4 with fluid-filled cavities 5, 6 connected by tubes to a switching apparatus, the material 4 being housed in a box, preferably of metal, comprising baseplate 1, side and end channels, and a resilient cover 11 which is treated to give a hard wearing surface and is fixed to the side and end channels by plates 12. The cavities 5, 6 connect, through tubes not shown, with tubes 37 of the switching apparatus which is situated away from the road pad and is housed in the waterproof casing 16, 17. When a vehicle passes over the pad the fluid in the cavities is compressed and the flap 26 is raised making contacts 19, 20. If the fluid used is air, holes 38, 39 are provided to maintain the tubes and cavities at atmospheric pressure. The box, Fig. 3, is buried in the road with the cover 11 at surface level. The two cavities 5, 6, being separately connected, enable the direction of traffic to be ascertained. According to the Provisional Specification, the fluid may be electrically conducting and bridge contacts when displaced from the cavities.
Patent GB-931710-A (GB)
Title: Improvements in or relating to gaskets
IPC: F16J15/08
Filed: 1959-05-22
Abstract: 931,710. Joint-making packing. CORRUGATED PACKING & SHEET METAL CO. Ltd., and T. P. NICHOLSON. May 5, 1960 [May 22, 1959], No. 17435/59. Class 122 (3). A corrugated gasket comprises a sheet 10, Fig. 2, of metal having a high degree of resistance to compression and a high degree of resilience, as compared with mild steel, and a sheet or facing element 11 secured thereto by soldering, brazing or the use of an adhesive. The sheet 10 may be of stainless steel and provided on one or both sides with the softer sheet which may be of nickel alloys, aluminium or copper; the facing sheets on opposite sides of the sheet 10 may be of different materials and of laminated form. Corrugations 13 are provided around openings in the gasket, and these openings may be eyeleted both above and below with a soft aluminium facing 16, Fig. 7, which is brazed, soldered or stuck to the gasket in the flat and subsequently embossed to give the corrugated form, the corrugated surface on one side of the gasket being softer than that on the other, if desired. Such an eyeleted formation may be provided on a gasket formed of the composite sheets described above or only of the hard metal sheet 10. The exposed faces, e.g. the completed gasket, may be lacquered, electroplated, dyed or otherwise treated.
Patent GB-1211892-A (GB)
Title: Process for the production of foamed articles from synthetic rubber
IPC: C08L21/00
Filed: 1968-04-11
Abstract: 1,211,892. Foamed synthetic rubber articles. CHEMISCHE WERKE HULS A.G. 11 April, 1968 [14 April, 1967], No. 17482/68. Headings C3C and C3P. Foamed articles are produced by foaming a synthetic rubber dispersion followed by gelling, vulcanization, washing and drying the foamed articles obtained, prior to vulcanization 0À1- 0À4% by wt. (referred to the rubber solids) of the sodium salt of a carboxymethylated cellulose, having an average of 0À65-2 ether groups per glucose unit, being added to the dispersion or foam produced and 0À75-2À5% of sodium silico-fluoride being added as gelling agent to the foam obtained corresponding to a gelling time of 10-30 minutes at 20‹ C. The synthetic rubber dispersion may be an aqueous dispersion of a butadiene and/or isoprene copolymer, optionally with styrene or containing polystyrene. The vulcanizing agent may be a mixture of sulphur, diphenylguanidine, zinc diethyldithiocarbamate, zinc - 2 - mercaptobenzothiazole, 2,2 - methylene - bis - (methyl - 6- tert. butylphenol), zinc oxide, bentonite and sodium alkylated naphthalene sulphonate.
Patent GB-1421423-A (GB)
Title: Process for bonding particulate solids to supports
IPC: B01J47/00
Filed: 1973-04-11
Abstract: 1421423 Bonding particles to particles: catalyst NORDDEUTSCHE AFFINERIE 11 April 1973 [19 April 1972] 17518/73 Headings B1F and B2E A process for bonding a particulate solid to support particles, comprises depositing the particulate solid from an aqueous medium comprising (a) at least one water-insoluble synthetic resin selected from homopolymers of acrylic esters and copolymers thereof with styrene, a vinyl ether, a vinyl ester, vinyl chloride or vinylidene chloride, and (b) at least one watersoluble or water swellable synthetic resin capable of acting as a floculating agent for said solid, the floculating agent being selected from polyacrylates, polyacrylic acids, polyacrylic esters, acrylic ester copolymers, polyacrylamides and polyethyleneimines, the weight ratio of synthetic resin (a) to the floculating agent (b) being from 20 to 1000:1 where the floculating agent is water soluble or from 10:1 to 1:10 where the floculating agent is water-swellable. The aqueous medium may also contain an additional substance removable to form pores in the coating, such as sugar, urea, chlorides, sulphates, acetates and oxalates or blowing agents such as chalk and dolomite. The support particles preferable float in water and may be foamed polystyrenes or polyurethanes. If the buoyancy of the particles is to be reduced, barytes or PbSO 4  may be added to the coating. In examples: (1) polyacrylamide floculating agent is dissolved in a dispersion of water insoluble acrylate before diluting and mixing with a viscous aqueous dispersion of water soluble acrylic ester; the particulate solid, calcium stannate and NaHCO 3  blowing agent are then added with support particles of foamed polystyrene; after thorough mixing and drying (and disintegration if foamed polystyrene particles have agglomerated) the coating may be treated with hot HCl to convert the calcium stannate to stannic acid catalyst; the drying step may be performed after the coated particles have been spread on a temporary support sheet; (2) as in (1) with the addition of polyethyleneimine to thicken the polymer mixture: and (3) the NaHCO 3  of (1) is replaced with a mixture of NaHCO 3 , chalk and common salt.
Patent GB-439228-A (GB)
Title: Improvements in or relating to date indicators
IPC: G09D3/04
Filed: 1935-06-18
Abstract: 439,228. Calendars. CASCELLOID, Ltd., and PALLETT, A. E., Britannia Works, Abbey Lane, Leicester. June 18, 1935, No. 17524. [Class 106 (iv)] A perpetual calendar comprises a card bearing fixed date numerals 6 adjacent which are apertures 7, 8, 9. A slide 10, Fig. 4, carrying day names is movable behind the aperture 7. A slide 12 bearing month names moves behind the aperture 9 and a slide 11 carrying the numerals 29 .. 31 arranged as shown can be adjusted behind the aperture 8. The slides are moved and guided by knobs which project through slots in the back of the calendar. Alternatively, the slides may move in guides secured to the front sheet of the calendar.
Patent GB-612972-A (GB)
Title: Improved electric battery charging system
IPC: H02J7/32
Filed: 1946-06-12
Abstract: 612,972. Charging batteries. CONSTANTINE, W. W. (General Motors Corporation). June 12, 1946, No. 17573. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 24, 1947.] [Class 38 (iv)] [Also in Group XXXVI] In a charging system, particularly for use on motor vehicles, in which the rate of charge is controlled by the temperature of the battery, control is effected by a resistance unit in good thermal contact with the battery and included in the circuit of a voltage coil of a vibratory regulator governing the voltage of the charging generator. As shown in Fig. 1, a shunt wound generator 10, 13 charges a battery 28 over a current regulator 30 and reverse-current relay 20. The generator voltage is controlled by a vibratory regulator 40 having a voltage winding 46 which is connected in series with a negative temperature coefficient resistance unit 50 mounted in or on the battery, the circuit of the winding being completed by the ignition switch 58. The voltage at which the armature of the regulator is attracted to its core 47 is thus greater the lower the battery temperature and the charging voltage is correspondingly higher. Excessive charging current causes the opening of contacts 32, 33 of the current regulator, thereby de-energizing an auxiliary winding 41 of the voltage regulator to bring about a reduction of the generator voltage. The resistance unit 50 may comprise a negative temperature coefficient element 52 in parallel with an element 51 of zero temperature coefficient, the combination providing the desired resistance/temperature characteristic. The element 51 may then be mounted clear of the battery, say, on the ignition switch. The element responsive to battery temperature, or both elements, may be located in a pocket formed in the top wall of the battery casing, the pocket dipping into the electrolyte. Alternatively, they may be mounted in a lead container immersed in the electrolyte and supported by the casing upper wall.
Patent GB-463155-A (GB)
Title: Printing press for printing on reels and similar rotatory bodies
IPC: B41F17/22
Filed: 1936-06-25
Abstract: 463,155. Rotary elevators. CARP'S GARENFABRIEKEN NAAMLOOZE VENNOOTSCHAP, J. A. June 25, 1936, No. 17719. Convention date, July 2, 1935. [Class 78 (i)] [Also in Group XVI] Apparatus for printing on cardboard reels 3 and similar articles capable of rolling comprises a rotary carrier 1 provided with a series of spaces bounded. by rotatable rollers 6, the reels being fed into the spaces and conveyed by the carrier to a printing-roller 2.
Patent GB-477162-A (GB)
Title: A process and apparatus for the treatment of oils and the like
Filed: 1936-06-25
Abstract: <PICT:0477162/III/1> <PICT:0477162/III/2> Linseed, soya bean, castor, perilla, rosin, fish and train oils, as well as other oils and oil-containing products for use in the varnish industry, such as solutions of copals or rosins in suitable oils, are cooked and polymerized by circulation between a kettle and one or more directly or indirectly heated heaters, the material passing from the heater or heaters being brough into a form where it has a large surface area for unit volume, in the free space above the oil in the kettle or in a separate expansion chamber preferably under vacuum, the products of distillation immediately removed, and the treated material returned to the kettle.  The circulation is preferably effected by convection assisted by suction, an inert gas or a pump.  Undesirable constituents such as fatty acids, malodorous products and acrolein may be removed during the process.  The heaters may be heated either directly, e.g. by furnace gases, indirectly e.g. by an oil or salt bath, or by superheated steam or hot water under pressure circulated through a coil in the heater.  As shown in Fig. 1, the oil is circulated by a pump 53 situated between a kettle 51 and a heater 54 and passes from the heater to an atomizing nozzle 56 situated in an expansion chamber 52 communicating with the kettle, vapours formed in the upper part 58 of the chamber 52 being drawn into an oil separator 60 by a pump 65.  The condensate in the separator is returned to the chamber 52 by a pipe 61, the more volatile products, such as fatty acids, passing through a pipe 62 to a condenser 63.  In a modification, the heater comprises a jacketed coil, and the oil from the coil is sprayed by steam into an expansion chamber connected to the kettle.  The steam and vapours from the expansion chamber are drawn off through a separator, the condensate being returned to the kettle and the vapours drawn through the jacket of the heater. In another modification, the oil is circulated by an inert gas, e.g. carbon dioxide or nitrogen, introduced into the oil before it enters the heater, the mixture of gas and heated oil from the heater being sprayed through a nozzle into the upper part of the kettle, and the vapours formed therein drawn off through a condenser.  In further modifications, the expansion chamber is provided with baffles over which the heated oil trickles.  In one such modification, Fig. 5, the expansion chamber 107 is situated immediately above the kettle 104, and inert gas is introduced through a pipe 111 into the flow pipe 106 between the kettle and the heater 105.  A pipe 113 is provided connecting the outlet of the heater to the upper part of the kettle, whereby the oil may be first circulated between the kettle and the heater, and then, when the distillation temperature is reached, between the kettle, the heater, and the chamber 107.
Patent GB-351224-A (GB)
Title: Improvements relating to drop-down breech loading small arms
IPC: F41A15/06
Filed: 1930-06-10
Abstract: 351,224. Drop-down guns. HILL, F. R., 262, Washwood Heath Road, Saltley, Birmingham. June 10, 1930, No. 17761. [Class 119.] A drop-down gun, either single- or doublebarrelled, of the kind in which a live cartridge is extracted whereas a spent cartridge is ejected on breaking the barrels, has means whereby the ejecting operation is effected by the energy of the main spring of the action. As shown, the tumbler 8 is adapted to be turned about its pivot into the cocked position by a cocking rod 10 and to be held in the cocked position by a sear 9. The outer end of the cocking rod protrudes beyond the actionbody 7 and coacts with a spring-pressed member 11 mounted in the fore-end 12 carried by the barrel 13. On breaking the barrel, the member 11 moves the cocking rod 10 to cock the tumbler 8. A nose on the tumbler bears against a pin 15 which coacts with the mainspring 14, at the other end of which is located a plunger 16. The movement of the latter is limited by a pin 17 engaging in a slot 16a therein. A shoulder 16b formed on the plunger normally engages with an arm of a sear 18 which is pivotally mounted within the action-body 7 and is actuated by a spring 19. On breaking the barrels, when the gun has been discharged, the member 11, whilst moving the cocking rod 10, is rotated about its own pivot against the action of its spring 11a, and an arm 11b thereof is moved into the path of a projecting nose on the sear 18. On further movement of the barrels, the sear 18 is rotated by the arm 11b and thus releases the plunger 16 which moves forward under the action of the mainspring and strikes one arm of a pivoted ejector lever 20. The other arm of the lever engages in known manner with the ejecting rod 21. The plunger is returned to its normal position on closing the barrels by the engagement of a projection on the action-body with a projection on the lever 20. Should the barrels be broken before firing, the rotation of the member 11 by the rod 10 does not take place and thus the ejecting operation is not effected. In this case, the lower end of the lever 20 engages with the knuckle end. of the action-body 7 and is rotated thereby to effect the extraction of the live cartridge.
Patent GB-586672-A (GB)
Title: Improvements in gauges indicating the level of a liquid of the gaseous bubbling type
IPC: G01F23/16
Filed: 1940-12-17
Abstract: 586,672. Liqund-level indicators. JAEGERAVIATION. Dec. 17, 1940, No. 17801. Convention date, May 15. [Class 123 (i)] In a liquid-level indicator of the type in which the indications are dependent on the pressure of a gas escaping from the end of a tube dipping into the liquid, the source of the gas is liquefied propane in a vessel 1. The vapour passes through a pressure reducer 3 and adjustable orifice 5 to the dip tube 7 which is connected to a gauge 8. The lower end of the tube 7 is surrounded by a bell 10 having an outlet 11 of the same order of size as the tube 7, whereby, if the tank 9 is inverted liquid is prevented from entering the tube 7.
Patent GB-149323-A (GB)
Title: Improved process and apparatus for utilising the heat generated by idle-running blading in steam or gas turbines
IPC: F01D5/08
Filed: 1920-06-30
Abstract: 149,323. Akt.-Ges. Brown, Boveri, et Cie. Aug. 6, 1919, [Convention date], Cooling and heating parts.-The hollow rotor drum a of a steam or gas turbine provided with forward running blading b band reverse running blading c is provided with a small quantity of liquid such as water, which is evaporated and the vapour heated by the higher temperature of the idle-running section, this heat being abstracted by contact with the lower temperature of the working section. The excessive frictional heating of the idle running section is thus avoided. The water used is just sufficient to spread over the internal surface of the drum by centrifugal action. The hollow rotor may also be exhausted of air.
Patent GB-713851-A (GB)
Title: Improvements in helmets
IPC: A42B3/14
Filed: 1951-07-30
Abstract: 713,851. Helmets. HELMETS, Ltd., and TURNER, M. L. July 29, 1952 [July 30, 1951], No. 17984/51. Class 63 A helmet 12 has a headband 1 detachably secured by sinuous supporting strips 3 attached by press fasteners 10, 11 to the helmet thus providing ventilation. The strips are secured to the headband by a clinched fastening 7 and by fastenings 8 provided with a washer and engaging slots to allow relative sliding. The snap fastener elements 10 also pass through slots in the strip 3, so that the headband can yield and be self-adjustable within limits.