baber/WOPTO huggingface dataset:
Patent GB-515975-A (GB)
Title: Improvements relating to hand operated fire extinguishing devices
IPC: A62C8/00
Filed: 1938-06-17
Abstract: 515,975. Powder &c. sprinklers. EVANS, L. O. June 17, 1938, No. 18068. [Classes 18 and 66] [Also in Groups XXI and VIII] A device for sprinkling a liquid or powder for such purposes as fireextinguishing, disinfecting, or insect destroying, comprises an elongated container 1 provided d with an inclined neck 2 and a perforated screwed cap 3 formed with fine perforations 6 and fitted with a deflector 7 having an inclined lip 8. The perforations may, normally, be sealed by an adhesive or other cap 9 which is readily removable. The container may be charged with a fire-extinguishing or fire - proofing solution of ammonium chloride and ammonium phosphate, with or without alum, in water.
Patent GB-403958-A (GB)
Title: Arrangement for switching inductive loads on to networks of relatively small capacity
IPC: H02P1/26
Filed: 1932-06-27
Abstract: 403,958. Control of A.C. motors. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. June 27, 1932, No. 18153. Convention date, Aug. 15, 1931. [Class 38 (iii).] For connecting to a small network, inductive loads which take a gradually decreasing reactive current after connection e.g. squirrel - cage induction motors or induction furnaces with a magnetic charge, a condenser 3 is connected in parallel with the load 2, and a variable choke 4 is connected in parallel with the condenser, the inductance of the choke 4 being continuously increased with the decrease of the load current. The choke 4 may be operated through gearing by an auxiliary motor 6 which is under the control of a relay 5 responsive to the main motor current. When the choke 4 reaches its highest reactance position, it may be disconnected automatically together with the condenser 3.
Patent GB-259680-A (GB)
Title: Improvements in or relating to thermostats
IPC: G05D23/01
Filed: 1925-07-16
Abstract: 259,680. Salerni, P. M. July 16, 1925. Thermostats. A thermostat suitable for regulating the temperature of the oil used to heat a vulcanizer, for example, by controlling the fuel supply to the oil-heater, comprises a vessel A containing mercury, the level of which rises into the neck B of the vessel so that a small change in the volume of the mercury effects a substantial change in. its level, and a submerged member D which is adjustably secured to a rod C. The rod passes through the neck of the vessel and at its upper end supports a mercury cup H which rises and falls according to the temperature of the mercury in the vessel, which is surrounded by a jacket through which the oil passes, and varies the opening in a V-notch formed in a web M arranged in the gas supply pipe to the heater. The level of the mercury in the neck, which is provided with a gauge, can be adjusted by the screw-actuated piston G.
Patent GB-639038-A (GB)
Title: Improvements in or relating to locating devices for reinforcing members in reinforced concrete structures and units
IPC: E04C5/18
Filed: 1948-07-07
Abstract: 639,038. Locating devices for concrete reinforcements. RANKIN, A. M. July 7, 1948, No. 18285. [Class 20 (iv)] A device of wire or strip material of any desired section for locating a reinforcement to ensure a predetermined minimum thickness of concrete between the reinforcements and the surface of the concrete, comprises a length of wire forming a main loop and smaller loops, the latter serving to position the wire on the reinforcement. As shown, a length of wire is coiled to form an outer loop 20, inner loops 21 being connected thereto by portions 22. The reinforcing rod 19 is inserted between the portions 22, the inner loops being fitted in turn to surround the rod. The ends of the inner loops may be bent parallel to the axis of the rod. To increase its rigidity, the main loop may be formed with a subsidiary loop. Smaller loops may be provided on the main loop to avoid jagged portions on the surface, if the concrete structure is ground after casting. Where discolouration of concrete is to be avoided the devices are made of non-corrodible metal, and they may be fitted to reinforcing bars between the cages or spiders used for locating the bars relatively to each other.
Patent GB-1145286-A (GB)
Title: Polyamide preparation
Inventor: HAWORTH ERNEST
IPC: C08G69/04
Filed: 1965-04-30
Abstract: 1,145,286. Polyamide production. IMPERIAL CHEMICAL INDUSTRIES Ltd. 22 July, 1966 [30 April, 1965; 25 March, 1966], Nos. 18330/65 and 13442/66. Heading C3R. Linear fibre-forming polyamides are prepared by heating an aqueous liquid reaction mixture containing polyamide-forming ingredients under pressure in an apparatus which allows steam to escape, the lower zone of the wall of the reaction vessel below the final liquid level being maintained at a temperature above that of the reaction mixture for at least the latter part of the heating period and at the same time the upper zone of the wall being maintained at a temperature below that of the lower zone. The reaction mixture may be a 45-95% solution of hexamethylene diammonium adipate. The vessel may be one of those illustrated in Figs. 1 and 2 of the Provisional Specifications (not shown), i.e. it may comprise a vertical cylindrical vessel which has openings at the top and bottom but is otherwise completely surrounded by a heating jacket which is divided into 2 or 3 sections by horizontal annular partitions. In the earlier stages of reaction the lower zone only or both the lower and upper zones may be heated. The reaction temperature may be 110-300 C. and the pressure must be above atmospheric but not above 20 atmospheres. The temperature difference between the reaction mixture and the lower zone may be 5-250 C. and that between the lower and upper zones may be 0-200 C.
Patent GB-1532381-A (GB)
Title: Method and apparatus for determining accuracy of radiation measurements made in the presence of background radiatio
IPC: G01T1/178
Filed: 1977-05-03
Abstract: 1532381 Determining accuracy of radio-active measurement BECKMAN INSTRUMENTS Inc 3 May 1977 [17 May 1976] 18395/77 Heading G1A The accuracy of a measurement of a radioactive sample in the presence of background radiation is determined by measuring the background radiation alone (R B ), measuring sample plus background radiation (R S+B ), determining error values (E B , E S+B ) related to the measuring steps, determining the sample radiation by subtracting R B  from R S+B  and determining the accuracy E S  of the sample measurement R S  by combining the error values of the measuring steps. The combined error Eg is given by #(E B )<SP>2</SP>+(E S+B )<SP>2</SP> The "error value" used is preferably two standard deviations (95% probability) and equals 2#N where N is the radiation count. Formulae for performing the calculations, from measured values of count and count time are given. Preferably the background radiation is measured first and the value R B  and error calculated and stored. The measurement may be made for a predetermined time, to a predetermined count or to a predetermined accuracy. As shown, radiation counter 10 derives a count N s+b  and a time t s+b  relating to a sample plus background radiation. The count is fed to error calculating circuit 16 and the resulting error value to correction circuit 18. Divider circuit 12 generates a count rate signal R s+b . Subtraction circuit 14 subtracts from the rate signal R s+b  a previously stored background rate value and feeds the resulting rate R s  to display or printer 20. The correction circuit 18 derives the error E s  on R s  from R s+b , R s , E s+b  and a previously stored Eb signal and feeds the result to display device 20. In an alternative embodiment, the background value error is not computed and stored at 24 but the background measurement time is stored at 42. When measurements are being made to a predetermined error, the error value is frequently calculated and compared at 50 with the desired value. An equality signal is used to stop further measurement.
Patent GB-1510697-A (GB)
Title: Supports for heat exchange tubes in furnaces
IPC: C10G9/20
Filed: 1975-05-02
Abstract: 1510697 Heat exchanger tube supports EXXON RESEARCH & ENG CO 2 May 1975 [3 July 1974] 18455/75 Headings F4A and F4S In a high temperature furnace (e.g. for the cracking of hydrocarbons) having a convection section (16, Fig. 1) of heat exchange tubes (such as 22a, 22b &c.), said tubes are supported by tubular support beams 30 through which coolant air is passed to be discharged subsequently into a furnace zone of negative pressure (e.g. the furnace stack), each support beam 30 being encircled by heat insulating material 32 and having welded thereto metal supports 34 partly embedded in the insulating material 32 and supporting adjacent convection tubes 22a, further metal supports 36 being welded to the supports 34 and supporting other convection tubes 22b more remote from the support beam 30. The intention is to prevent overheating of the support beams 30 by radiant heat from the furnace chamber (14, Fig. 1), and a high temperature alarm may be provided to sense the temperature of the coolant air passing out of the support beam and thereby to give warning of insulation failure.
Patent GB-204423-A (GB)
Title: Improvements in or relating to stoppers
IPC: B65D39/16
Filed: 1922-07-05
Abstract: 204,423. Olley & Sons, Ltd., C., Olley, J. T., and Olley, L. C. July 5, 1922. Wires to facilitate withdrawal of stoppers. -A device for facilitating the withdrawal of a stopper comprises a U-shaped wire &c. 2 the limbs 3 of which are adapted to slide through the stopper 1 and are bent outwards at their extremities 6 to prevent the device from being disengaged from the stopper, a metal or like plate 7 on the underside of the stopper preventing the extremities 6 from injuring the stopper. An upper plate 9 may carry a trade-mark or other inscription.
Patent GB-931445-A (GB)
Title: Improvements relating to reciprocating presses
Inventor: SMITH CYRIL
IPC: B23G3/00
Filed: 1959-05-30
Abstract: 931,445. Bearings. TURNER BROS. (BIRMINGHAM) Ltd. May 23, 1960 [May 30, 1959], No. 18485/59. Class 12 (1). [Also in Group XXII] Rotary motion is produced in a unit 40 connected to a sleeve 41 by an axially-movable non-rotating rod 34 having a helical groove 37 containing re-circulating balls 38, which engage a similar groove 39 in the nut.
Patent GB-965133-A (GB)
Title: Improvements in or relating to mattresses
IPC: A47C21/04
Filed: 1962-05-14
Abstract: 965,133. Mattresses. VI-SPRING PRODUCTS Ltd., and H. W. COOK. May 13, 1963 [May 14, 1962], No. 18503/62. Heading A4M. The pocketed spring mattress 12 of a divan 10 has at each end an inlet hole 14 in its cover through which air heated by an electric heater 18 can be blown by a fan, each spring pocket having a portion of open weave material 15 e.g. nylon to allow warm air to flow through the pocket walls and circulate within the mattress. A flexible pipe 23 connects the fan-heater unit to the mattress via bayonet joint 20 or push-in connections.
Patent GB-1086471-A (GB)
Title: Diver's breathing system
Inventor: KELLER HANNES RUDOLF
IPC: B63C11/22
Filed: 1965-05-03
Abstract: 1,086,471. Diver's breathing system with safety valve. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. May 3, 1965, No. 18557/65. Heading AST. A diver's breathing system comprises a mask, a gas inlet connected to a high pressure source, a gas outlet connected to a low pressure source, and a safety valve which is normally open but which blocks the. outlet at a certain predetermined pressure in the diver's breathing system which is preferably not more than 0.2 atmospheres lower than the pressure at the exterior of the breathing system. As illustrated with reference to Fig. 1, the system may comprise a mask 1, an inlet 6, an outlet 26, a membrane 12, a membrane operated valve 12, a housing cover 13 with water openings 14, a safety valve 17 operated by membrane 22 and held open by valve spring 23. In operation, the diver lowers the pressure inside space 10 on inhaling, whereby valve 9 opens and gas under pressure flows from conduit 6 through space 10 and into conduit 2 leading to the mask. On exhaling, the diver raises the pressure in space 10 and valve 9 is closed. Further, valve 25 is opened and exhaled gas is exhausted from 10 under the action of the low pressure source. If the pressure in the space 10 falls to an undesired level, the safety valve 17 closes under the influence of the pressure difference operating on membrane 22, and thus protects the diver. A simplified and alternative safety valve is illustrated with reference to Fig. 2 and comprises a conduit 32 of which part 33 has been removed and over which a flexible conduit 34 has been slid. The flexibility of conduit 34 is chosen so that it collapses at a predetermined pressure difference across the wall 34.
Patent GB-434842-A (GB)
Title: Method for fixing metal bodies in workpieces made of porcelain and similar brittle material
IPC: B21J15/02
Filed: 1934-06-25
Abstract: 434,842. Forging. OSENBERG, O. E. W., and KERB-KONUS GES., 6, Reisstrasse, Dresden, Germany. June 25, 1934, No. 18676. [Class 83 (iv)] Metal parts, not of the same length as bores or cavities in ceramic parts in which they are to be fixed, but projecting at both ends therefrom are upset at one projecting end by electric riveting to form heads which may be accommodated in recesses in the ceramic material. The end of a metal piece a is inserted in a bore h in a ceramic or other brittle workpiece g and electrodes c, d are applied to its ends, the heat and pressure deforming the metal to cause it to form a head b and to fill the bore h which may be formed with transverse or longitudinal flutings &c. to increase the rigidity of the connection. When the area of the metal piece is considerable, it may have several projections 'which are upset or portions of an upstanding wall may be deformed to secure it in place. A wire connection may be sweated on to a head b by the application of the electrodes. The metal piece may be in the form of a sleeve or the electrode c may be hollow to permit a refractory ram o to pass through it and make a recess p in the metal piece. A smooth metal shaft may be passed through a bore in a workpiece and be deformed to fill widened portions of the bore to make a firm connection with the workpiece. Reference has been directed by the Comptroller to Specification 180,285, [Class 83 (iv)].
Patent GB-1064278-A (GB)
Title: Improvements in or relating to vinyl fluoride production
IPC: C07C17/08
Filed: 1964-05-08
Abstract: The acetylene content of vinyl fluoride monomer containing up to 5 mol per cent of acetylene is reduced by selectively hydrogenating the acetylene to ethylene and/or ethane by contacting the gaseous mixture with at least the stoichiometric amount of hydrogen in the presence of a hydrogenation catalyst, containing a Grou VIII metal on a catalyst support, for a time sufficient to reduce the acetylene content to less than 10 p.p.m. based on the weight of the vinyl fluoride.  The crude vinyl fluoride may be prepared by the process described in Specification 1,064,276.
Patent GB-1249036-A (GB)
Title: Mechanism for sealing plastics films
Inventor: LAZENBY EDWIN HALL
IPC: B29C65/18
Filed: 1969-04-11
Abstract: 1,249,036. Seaming non-metallic sheet material. ROSE FORGROVE Ltd. 9 April, 1970 [11 April, 1969], No. 18799/69. Heading B5K. [Also in Division B8] Apparatus for sealing plastics film comprises a pair of jaws 10, 11 adapted to close on the film to be sealed, one jaw providing an abutment and the other carrying a heater 24 heated by an electrical resistance element 25, a cooler 26 and means operative after the jaws have closed first to present the heater 24 to one face of the film to be sealed while its other face is supported by the abutment and then to withdraw the heater 24 rapidly and present the cooler 26 to the one face of the film while the other face remains supported by the abutment. The jaws 10, 11 are periodically moved in to grip and transversely seal a tube of thermoplastic wrapping material, moved down to advance the tube, then separated and raised to their original positions. The jaw 10 carries the heater 24 and the cooler 26 supported at their ends on pivots 28, 29, respectively. Slotted arms 30, 31 are attached to the opposite ends of the heater 24 and the cooler 26, respectively, and engage runners attached to a lever 34 on a shaft 35 oscillated by pneumatic cylinders 36. Upward movement of the pistons in the cylinders 36 brings the cooler 26 into operative position and retracts the heater 24 and downward movement causes reverse action. Rubber abutment strips 39 are provided on the jaw 11. During the cooling period, a knife 40 is propelled by a pneumatic cylinder 41 from the jaw 11 into a slot 42 in the cooler 26 to cut through the seal. Air may be blown through a channel 43 in the cooler 26.
Patent GB-314220-A (GB)
Title: Improvements in or relating to fastenings for attache cases, suit cases and the like
IPC: A45C13/28
Filed: 1928-06-30
Abstract: 314,220. Hill, W. J. June 80, 1928. Fastenings f or attache cases and the like; hasp fastenings. - The end of the handle c has a projection c<2> project. ing beyond the bearing a<2> and adapted to cooperate with the hasp or other fastening member to secure it against release. As shown, the fastening comprises a loop b pivoted to a member b<1> secured to the lid of the case, and adapted to engage a rectangular member a on the case body. The loop is cut away at a<3> so as to clear projection c<2> when the handle lies, against the case, Fig. 1, the projection engaging over the loop when the handle is raised, Fig. 2. A form is described in which the invention is applied to hasp fastenings of the kind in which the hasp has a loop passing through a slot into the lock casing and there engaged by a sliding bolt. The bearing member for the handle may be integral with one of the fastening members, as shown, or separate, and the invention may be applied to both ends of the handle.
Patent GB-487366-A (GB)
Title: Improvements in processes for extracting oil from seeds or oil cakes by means of solvents
IPC: C11B1/04
Filed: 1937-07-08
Abstract: Prior to the extraction of oil from castor seeds, earth nuts, or their oil-cakes by trichlorethylene the seeds or like are subjected to the action of heat or a hot fluid, e.g. a current of steam or air to coagulate the mucilaginous matter.
Patent GB-147060-A (GB)
Title: Improvements in or relating to circular knitting frames
IPC: D04B13/02
Filed: 1920-07-06
Abstract: 147,060. Haaga, E. June 19, 1919, [Convention date]. Circular machines.-The needles n instead of being arranged radially are bent or set askew as shown in Fig. 2, the sinker-wheel g being set accordingly so that the sinkers p are approximately parallel to the needles at the point of entry c. This allows a cylindrical sinker-wheel to be used, and other difficulties arising from a radial disposition of the needles are overcome. The sinkers p have very narrow projecting nibs a which leave the space between the needles free to be occupied by the yarn, during the loop-sinking operation, jamming due to the presence of the sinker nibs being thus prevented. A sinker-wheel g provided with the sinkers p can be used with needle circles of different diameters, the driving- wheels h, i being interchangeable and adjustable.
Patent GB-1307714-A (GB)
Title: Chuck
IPC: B23B31/117
Filed: 1970-04-21
Abstract: 1307714 Chucks HEALD MACHINE CO 21 April 1970 [23 April 1969] 19086/70 Heading B3B A chuck for holding thin-walled workpieces without distorting them comprises a housing 30; a first tubular sleeve 32 of elastomer material held in the housing and being capable of receiving a workpiece in its inner bore, the housing being provided with a bore 36 to closely embrace the outer surface of the sleeve and with an inwardly directed flange 38 to engage one end of the sleeve; a first pusher 35 in the housing operated by a fluid pressure actuator to bring force to bear on the sleeve 32 to cause it to expand radially to clamp the workpiece 34, the pusher 35 being slidable in the housing and engaging the other end of the sleeve; a second tubular sleeve 42 of elastomer material received in the housing to clamp the workpiece 34 at a portion spaced from the first sleeve 32, the housing being provided with a second flange 37 to engage one end of the second sleeve; and a second pusher 44 to engage the other end of the second sleeve 42. Different clamping forces can be applied to the workpieces at the sleeves 32 and 42. The sleeves 32, 42 may be reinforced with wear-resistant carbide balls on their internal surfaces, or springs may be embedded in the elastomer material.
Patent GB-379805-A (GB)
Title: Improvements relating to the starting of diesel and like engines
IPC: F02N11/08
Filed: 1931-07-03
Abstract: 379,805. Starting. CHANCE BROS&. CO., Ltd. and SPAINK, J. H. ABBINK-, Lighthouse Works, West Smethwick, Staffordshire. July 3, 1931, No. 19193. [Class 7 (v).] For starting Diesel and like engines, an electric starting motor is provided with motor and generator field-windings c, e and a decompresser device on the engine is closed, when a predetermined engine speed has been attained, by an electromagnet g excited by current from the generator winding e, so that the energy given to the flywheel is utilized in driving the engine over compression points. A motor armature b and a generator armature d are mounted on a common shaft, or a single armature may be provided with separate windings. The current through the generator winding e is adjustable by a resistance f, and the circuit contains a magnet coil h which operates a switch h<1> controlling the circuit of a magnet coil k; this actuates switches k<1>, k2 controlling the motor and a switch k<3> whereby a resistance i is inserted in series with the decompresser magnet g, a smaller current than that required to close the decompresser being sufficient to hold it closed. On closing the motor circuit momentarily by a starting switch l, a holding switch o<1> is closed by an electromagnet o, which also closes switches o<2>, o<3>. The closing of the switch o<2> causes the coil k to close switches k<1>, k<2>, k<3> and current flows from the battery a through the motor b, c, the decompresser valve being open. When the engine attains a sufficient speed, current from the generator d, e closes the decompresser valve, enabling the engine to start, and current in the coil h causes the switch h<1> to open and switch off the motor b, c. The motor can also be switched off by a pushbutton switch m or, if the engine fails to start, current through a heating coil n is utilized to open a switch n<1> by means of the distortion of a metal strip. When the engine is running under its own power, current is supplied from the generator d, e to the battery a through a resistance p and the load circuit q.