baber/WOPTO huggingface dataset:
Patent GB-278452-A (GB)
Title: Vacuum fuel-feed apparatus for internal combustion engines
IPC: F02M37/02
Filed: 1926-07-09
Abstract: 278,452. Ruud, O. S. July 9, 1926. Vacuum apparatus.- Fuel-feed apparatus for internal-combustion engines comprises a chamber 6 with a fuel inlet 8 and a suction port 9 connected to the induction pipe, of the engine. A float 11 slides on a tube 12 carrying a hollow atmospheric valve' 14 and a valve 18 between the. chamber 6 and the reservoir chamber 7. The valve 14 is larger than the valve 18 so that during the suction period in the chamber 6 the valve 14 is held to its seat by the atmospheric pressure against the lifting force of the float until the buoyancy of the float is sufficient to overcome the pressure and open the valve, suddenly and fully. At the same time, the valve 18 is opened to allow the fuel to pass into the chamber 7, which is connected at 10 to the carburettor. The tube 12 extends into the chamber 7 and keeps it at atmospheric pressure. The chamber 7 may be primed with fuel through the valve 14 and tube 12.
Patent GB-1429442-A (GB)
Title: Start-spinning apparatus in an open-end spinning machine
IPC: D01H4/44
Filed: 1974-04-19
Abstract: 1429442 Re-starting spinning in open-end spinning machines F STAHLECKER and H STAHLECKER 19 April 1974 [30 April 1973] 17309/74 Heading DID An open end spinning machine has a travelling start-spinning apparatus movable therealong which reinserts a yarn into a spinning rotor wherein means are provided which cause spinning to be started at a preselected time during the period in which the spinning rotor reaches its operating speed from a previously braked condition. This time is determined by a delay timer 18 activated by a lever 17 which engages a rotor brake lever 15. The yarn fed back into the rotor is provided either by a reserve length, Fig. 1, or by back rotation of the winding package 6 by a winding roller 22b of the start spinning apparatus, Fig. 2. In the latter case thread draw off rollers 9a, 10a run at a speed lower than the winding speed and their nip is released by the thread tension moving roller 10a when any slack has been wound in. A switch 30 in the start spinning apparatus operates on the stop motion 29 of the spinning station to start fibre feed at the appropriate time. A thread trapper 14 and cutter 13 hold the thread end prior to starting spinning.
Patent GB-109349-A (GB)
Title: Improvements in Means for Pressing Straw Hats and the like.
IPC: A42C1/04
Filed: 1916-12-02
Abstract: 109,349. Moseley, A. H., and Macintosh & Co., C. Dec. 2, 1916. Pressing.-In pressing straw hats or the like, an india-rubber or other envelope d containing air or gas is interposed between the usual flanged water bag a and the usual press pan. The envelope, which may be integral with the bag, is fitted with one or more back pressure valves e.
Patent GB-1256385-A (GB)
Title: Vacuum switch structure
IPC: H01P1/12
Filed: 1969-04-02
Abstract: 1,256,385. Vacuum switches; electromagnetic relays. INTERNATIONAL STANDARD ELECTRIC CORP. 2 April, 1969 [1 May, 1968], No. 17328/69. Heading H1N. An electromagnetically operated vacuum relay has fixed contact carrying plates 26, 32 separated by a tubular insulator 16 of the sealed envelope and provided with respective extensions 50, 52 which extend axially of the envelope to overlap each other in spaced relationship on opposite sides of movable contacts 46, 48 and form the fixed contacts of the relay. The movable contacts are on a rod 40 mounted on a diaphragm 36 and movable by an electromagnet 14 to close contacts 48, 52 or 46, 50, the contact movement being the same in either direction. The contact extensions 50, 52 have a U-shape and are off-set so that sides 56, 58 overlap to form contact shields. The diaphragm 36 is secured to an apertured annular plate 39 attached to a lower insulator 18, the aperture in the plate being accurately dimensioned to determine the effective area of the diaphragm.
Patent GB-1329502-A (GB)
Title: Method of separating tetrafluoroethylene from a gas mixture containing it
IPC: C07C17/38
Filed: 1971-05-26
Abstract: 1329502 Purification of tetrafluoroethylene KALI-CHEMIE AG 26 May 1971 [29 May 1970] 17332/71 Addition to 1248135 Heading C2C [Also in Division B1] The process of Specification 1,248,135 is extended to mixtures other than those which have been obtained by pyrolysis of difluoromonochloromethane and which contain a further perfluorohydrocarbon and/or hydrogen-containing fluorohydrocarbon and including mixtures which have not previously contained HCl. The range of treatment is 60‹ to -30‹ C.
Patent GB-1304099-A (GB)
IPC: B01J2/02
Filed: 1970-04-13
Abstract: 1304099 Granulating FARBWERKE HOECHST AG 13 April 1970 [12 April 1969] 17440/70 Heading B5A Apparatus for manufacturing granules from a melt comprises a melt containing vessel 7 from the bottom of which a plurality of tubular conduits 5 project into a heating chamber 2 and pass through holes 3 in the bottom of the chamber 2 such that apertures are formed between the outer surface of each conduit and the inner surface of the tube through which it passes. The melt is maintained at constant temperature by a heater 10 controlled by a thermometer 11 linked to a control device 12. A stirring device 9 is also provided in vessel 7. Chamber 2 is heated to a temperature of 3 to 8‹ C. above the melt solidification temperature, by a gas provided through device 15 into heat exchanger 16, where the temperature is controlled by a device 18 linked to a thermometer 17. Compressed gas such as air or nitrogen is also supplied to chamber 7 through device 14. A collecting funnel 19 to receive granules is provided. The conduits 5 extend preferably from 0À5 to 3 tube diameters below the wall of the heating chamber.
Patent GB-1460800-A (GB)
Title: Device for controlling an automatic gearbox in a vehicle driven by a turbocompressor-fed diesel engine
Inventor: HEDLUND S B
IPC: F16H59/32
Filed: 1974-04-22
Abstract: 1460800 Change-speed control VOLVO AB 22 April 1974 [26 April 1973] 17471/74 Heading F2D An automatic gearbox in a motor vehicle driven by a Diesel engine charged by a turbocompressor is subject to control by a device responsive to the engine exhaust gas pressure ahead of the turbine and/or the engine charging pressure after the compressor. As shown, a pressure-sensitive membrane 26 with an electrical or mechanical connection 31 to a valve controlling e.g. the coupling pressure in the gearbox is continuously subjected both to exhaust pressure in a duct 12 between the engine and the turbine 21 and to the charging pressure in a duct 17 between the compressor 23 and the engine. Modifications are described in which the membrane is responsive to one or the other only of these pressures.
Patent GB-1019587-A (GB)
Title: Finishing machine for boots and shoes
IPC: A43D95/06
Filed: 1962-10-26
Abstract: 1,019,587. Finishing machines. SOC. INDUSTRIAL & MERCHANDISING SERVICES S.A. Oct. 26, 1962 [Nov. 17, 1961], No. 17496/65. Divided out of 1,019,586. Heading A3B. The subject matter of this Specification is identical with that described in Specification 1,019,586, but the claims differ.
Patent GB-530646-A (GB)
Title: Improvements in or relating to the packaging of articles, particularly perishable foodstuffs
IPC: B65D75/06
Filed: 1939-06-16
Abstract: 530,646. Packaging. DEWEY & ALMY, Ltd. (Dewey & Almy Chemical Co.). June 16, 1939, No. 17688. [Class 94 (i)] A method of packaging articles, particularly carcases of lamb and other animals, having two spaced extensions or legs 2 consists in suspending a carcase by the legs, placing about the carcase a bag 1 of flexible material which is substantially impervious to air or moisture, and sealing the mouth of the bag around and between the legs leaving a portion at least of the legs protruding below the points of support. The carcase is suspended from a gambrel 3, and the bag preferably is made from unvulcanized rubber. The upper edges of the bag are drawn around the legs and secured by wire, cord, or adhesive tape, and the parts of the edges 9, 10 between the legs are secured by adhesive or by heat-sealing. After sealing, the air within the bag may be exhausted, and the bag may be contracted on to the carcase, prior to sealing, by heat treatment. Specifications 518,470 and 523,460 are referred to.
Patent GB-1146334-A (GB)
Title: Improvements in or relating to grills for warm air heaters
Inventor: PORTWAY MICHAEL CEDRIC
IPC: F24F13/08
Filed: 1966-04-22
Abstract: 1,146,334. Warm air heaters. CHARLES PORTWAY & SON Ltd. 31 May, 1967 [22 April, 1966], No. 17696/66. Heading F4V. In a warm air heater the bars 5 of the outlet grille are shielded from the warm rising air by curved baffles 7 which deflect the air. The bars 5 are of inverted channel section and may have tubes 8 therein connected to ambient air so that a flow of cool air around the bars 5 further reduces their temperature. The tubes may be perforated to provide air outlets and a fan may pressurize the ambient air supplied to the tubes. The tube ends may be joined to form a single opening to ambient air, or the tubes may be omitted and holes in the outside casing of the heater form air inlets.
Patent GB-357170-A (GB)
Title: Improvements in the manufacture and production of liquid, in particular aromatic, hydrocarbons
IPC: C07C2/76
Filed: 1930-06-10
Abstract: Liquid, in particular aromatic, hydrocarbons such as hexylenes, heptylenes, benzene, toluene, xylene, naphthalene, and anthracene, together with gaseous hydrocarbons such as ethylene, propylene, and butylene, are obtained by heat treatment of hydrocarbons of the methane series in a continuous process in the presence of elementary silicon.  The silicon may be mixed with a binding agent such as clay, alumina, water glass or other silicates, or may be deposited on carriers such as burnt fireclay and silica gel.  The temperatures preferably employed are between 700-1200 DEG  C., but may be as low as 550 DEG  C.  The heat required may be supplied by passing an electric current through the silicon, but if the reaction chamber is heated externally, the surface of the walls of the apparatus should be small compared with the surface of the catalyst.  The process may be carried out under atmospheric, diminished or increased pressure, and extraneous gases such as hydrogen and nitrogen may be present in the gas treated.  After separation of the products, the residual gas may be treated again.  Examples are given, and Specification 296,752, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-1418284-A (GB)
Title: Planetary gear
IPC: F16H1/46
Filed: 1974-04-24
Abstract: 1418284 Toothed gearing CENTRUM TECHNIKI OKRETOWEJ PRZEDSIEBIORSTWO PANSTWOWE WYODREBNIONE 24 April 1974 [30 April 1973] 17864/74 Heading F2Q In a planetary gear comprising a planet shaft 1 having a toothed portion meshing an output gear 2 on an output shaft 3 and having a gearwheel portion 12 meshing an input gear 13 on an input shaft 14, the shaft 1 carries gears 4 at its ends which mesh with externally toothed rings 5 secured to housing sides 6, 7, and also carries ring elements 9, 11 which engage smooth rings 10 which encircle all such planet shafts 1. In a modification, the rings 5 are internally toothed and the rings 10 are located inwardly of the planet shafts 1, Fig. 4.
Patent GB-711159-A (GB)
Title: Pulse jet aero engines
IPC: F02K7/06
Filed: 1951-07-28
Abstract: 711,159. Jet propulsion plant. KORAB, G. RULIKOWSKI-. July 28, 1952 [July 28, 1951], No. 17936/51. Class 110(3) A pulse jet engine comprises two alternately firing ducts having common or interconnected valve means B which is actuated by the force of the explosion in one of the ducts to simultaneously close the explosive mixture inlet aperture thereof and to open 'the corresponding aperture of the other duct. Each pair of ducts and their associated valve means constitutes a unit and the pulse jet engine may incorporate a number of such units with the valve means thereof so interconnected that no two ducts fire . simultaneously. The ducts. may be of semi-circular crosssection or are circular and provided with separate valves interconnected by a rocking arm. The ducts may be rotary ducts having intakes A and outlets C arranged as shown in Figs. 4 and 5 or circumferentially disposed as in Fig. 6 (not shown).
Patent GB-357095-A (GB)
Title: Improvements in or relating to lamp galleries for holding lighting fittings without screws
IPC: F21V17/00
Filed: 1930-06-12
Abstract: 357,095. Lamp shade &c. holders. BARTLEY, J. S. W., 6, Sydney Place, Fulham Road, London. June 12, 1930, Nos. 18031 and 20382. [Class 75 (ii).] A globe or shade holder for electric lamps comprises a resilient-armed self - expanding spider member within a body member having a rear portion 16 and a forward portion 14, the rear portion and the spider member being clamped between the inner end of the lamp holder and a pendant hook 10, a ceiling plate, or a bulk head plate, whilst the forward portion is resiliently engaged by the arms 13 of the spider member and is free to move axially relatively to the rear portion, without first being released from a locking device, so as to contract or expand the ends of the spider arms into or out of engagement with the outturned rim of the glove or shade 15. In the form shown in Fig. 3, the forward portion of the body member is in the form of a sleeve 18 slidable on the cylindrical lower end 19 of the rear portion 16.
Patent GB-292557-A (GB)
Title: Case-hardening metals
IPC: C23C8/46
Filed: 1928-06-21
Abstract: 292,557. Shimer, P. W., and Shimer, E. B. June 22, 1927, [Convention date]. Case-hardening.-In a process for case-hardening metals by immersion in a molten bath of used salts, small amounts, of the order of “ to 1 per cent by weight of the bath, of an alkaline earth metal cyanide are added at hourly intervals to the bath. The cyanide used is calcium cyanide or a cyanamide such as calcium cyanamide or a compound formed by the fusion of calcium cyanamide and sodium chloride, the cyanide formed then containing a small proportion of cyanamide. Specification 129,144 is referred to. In the Specification as open to inspection under Sect. 91 (3) (a) sodium cyanide may be used as the additive compound. This subject-matter does not appear in the Specification as accepted.
Patent GB-1494240-A (GB)
Title: Vehicle electrical switching operation control apparatus
IPC: B60R16/03
Filed: 1975-05-01
Abstract: 1494240 Selective signalling; lamp failure alarms ROBERT BOSCH GmbH 1 May 1975 [10 July 1974] 18155/75 Headings G4H and G4N In vehicle electrical switching operation control apparatus, a central transmitter sends digital address and command codes over at least one control line to a plurality of receiving stations which respond to respective unique address codes. In a motor vehicle, a central station addresses a plurality of substations in turn cyclically, over a data loop connecting the stations. A clock loop (driven by the central station) and a power loop accompany the data loop, though the data and clock loops may be combined into one loop. The message sent from the central station consists of a start bit, a station count to address a substation, and command bits, and may be repeated several times. In a substation, the message is received into a shift register and if the address is that of the substation, the command bits are passed to a command register in which each is stored via a non-equivalence gate into a respective 4-bit shift register (assuming 3 repetitions). Stages of each register feed a respective NOR gate controlling an output bi-stable which also provides feedback to the non-equivalence gate, the effect being that a given command bit is only passed to the output if the repetitions agree. Response bits (e.g. fault indicators or pulses derived from analogue indicators) are gated by the command bits into the first-mentioned shift register and returned to the central station before the next substation is addressed. The command bits may control lamps at the substation and the response bits (if of the fault indicator type) may indicate circuit breaks and short-circuits. The response bits are stored at the central station to control displays including alarm lamps, and are used in deriving (using logic) subsequent command bits. Lamp failure alarms (Fig. 6).-A command bit B switches power 16 to lamps 21 at transistor 220. A circuit break (e.g. filament break) is detected by thresholder 230 (excessive voltage) and a short-circuit (excessive current) is detected by current-voltage transformer 222 and thresholder 231. The command bit B gates 232, 233 the thresholder outputs for supply to the central station in the motor vehicle to actuate alarm lamps.
Patent GB-292566-A (GB)
IPC: C01B31/12
Filed: 1928-06-22
Abstract: 292,566. Schreiner, A. June 22, 1927, [Convention date]. Carbon.-Active charcoal is obtained from wood, peat, lignite, spent liquor of organic nature, and from other carbonaceous substances, by impregnation with solutions of potassium thiocyanate or potassium ferrocyanide and subsequently carbonizing in absence of air. The impregnated product is dried and distilled at 300‹ C. to 350‹ C. It is then heated in the absence of air to a bright red heat for half an hour and after cooling is leached with water or hydrochloric acid. The raw carbonaceous material may be first distilled and then impregnated and further heated in the absence of air as above. According to the Specification as open to inspection under Sect. 91 (3) (a) other alkali or alkaline-earth salts of thiocyanic acid may be used. This subject-matter does not appear in the Specification as accepted.
Patent GB-1038974-A (GB)
Title: Improvements in immersion mixing apparatus
Inventor: ROTHMAN NATHAN
IPC: B01F7/16
Filed: 1962-05-11
Abstract: 1, 38, 974. Mixing-apparatus; milling-appa-. ratus. SILVERSON MACHINES Ltd. April 29, 1963 [May 11, 1962], No. 18251/62. Headings B1C and B2A. In immersion mixing or milling apparatus comprising a vessel 21 divided into an upper 26 and a lower chamber 27 by an apertured frustoconical partition 25 in the lower part of the vessel a mixer casing 29 is the lower chamber has an inlet aperture to receive material from the chamber 26 and outlet aperture means to the chamber 27, a rotatable impeller 36 comprising vertical blades 37 and optionally two rings of teeth 38 being provided to draw material from the upper into the lower chamber. The teeth 38 are coaxial and interspaced with two rings of teeth 31 depending from the top wall 28 of the casing. A cylindrical mesh screen 32 may be provided round the outer ring of teeth 38 to reduce particle size. As shown the material is recirculated by passing upwardly between the partition 25 and the side of the vessel 21, but in a modification (Fig. 1 not shown) the partition is connected with the vessel wall, the upper and lower chambers being connected by valve-controlled conduits. A valve-controlled outlet conduit may extend from the bottom wall 22 of the vessel and the vessel may be provided with a cooling jacket 23.
Patent GB-860974-A (GB)
Title: Improvements in or relating to gyratory crushers
IPC: B02C2/06
Filed: 1959-05-28
Abstract: 860,974. Gyratory crushers. NORDBERG MANUFACTURING CO. May 28, 1959 [June 12, 1958], No. 18254/59. Class 59 In a gyratory crusher comprising a shaft 14 the central portion of which supports a crusher head 15, the upper end of the shaft is formed integrally with lugs 30 having apertures through which passes a pin 32 formed with an annular groove 33 to receive lifting means so that the shaft can be moved axially. The pin may be integral with the lugs. The pin may alternatively be formed with two annular grooves disposed symmetrically with respect to the axis of the shaft and with such a construction of pin, a single lug located between the grooves may be provided at the upper end of the shaft.
Patent GB-1260192-A (GB)
Title: Improvements in or relating to current controlling devices
IPC: H01L45/00
Filed: 1969-04-10
Abstract: 1,260,192. Solid-state switching element. ENERGY CONVERSION DEVICES Inc. 10 April, 1969 [11 April, 1968], No. 18343/69. Heading H1K. A symmetrical solid-state switching element has a semi-conductor mass consisting of boron with one or more of carbon, silicon, titanium, germanium, zironium, and hafnium. With binary boron-silicon compositions the preferred boron content is in the range 75-86 wt. per cent. The element switches from an initial very high resistance state to a low resistance state when a threshold voltage is exceeded and reverts to the high resistance state only when the current through the element is made less than a holding value. The semi-conductor may be prepared by mixing the particulate elements and fusing them together either in an arc furnace or by the use of an electron beam. Fragments of the fused material may be provided with ohmic contacts or the material may be used as a source for evaporation or sputtering. Alternatively the elements may be evaporated or sputtered on to a substrate without initial fusion. In a further variant, the fused material is ground to a powder which may be placed directly between electrodes, which may be compacted and placed between electrodes, or which may be made into a paint and applied to electrodes. Depending on the composition and/or method of preparation the material may be amorphous or crystalline. Both forms are considered to have a polymeric structure. The electrodes are of tantalum, niobium, tungsten, molybdenum, or graphite.
Patent GB-1095096-A (GB)
Title: Sodium tripolyphosphate
IPC: C01B25/41
Filed: 1966-04-27
Abstract: Sodium tripolyphosphate tends to be friable but particles larger than 100 mesh (U.S.) may be stabilized by contacting granules with a striker element which reduces their tendency to break down into particles smaller than 100 mesh.  This striker element takes the form of a metallic or heavy plastic blade which must be moved with a velocity of at least 2300 ft./min. but preferably not more than 10,000 ft./min. The process may preferably be conducted at 0-350 DEG C. and for between 5 seconds and 15 minutes.
Patent GB-1510083-A (GB)
Title: Nut crackers
IPC: A47J/
Filed: 1976-05-05
Abstract: 1510083 Nut-crackers WILTSHIRE CUTLERY CO PTY Ltd 5 May 1976 [5 May 1975] 18419/76 Heading A4A [Also in Division B4] A nut-cracker comprises a pair of handles 4, 5 operating a pair of jaws 2, 3, the opposing surfaces (8) of the jaws being inclined so that a wedgeshaped crushing space is formed between the jaws, there being a stop to limit the minimum size of the crushing space. The nut-cracker may comprise (as shown) two units each of a jaw and integral handle, the units being pivoted together or, Fig. 9, (not shown) one of the jaws is pivoted (32) to its handle and the handles are connected by a link (33). The stop may comprise, Fig. 2, (not shown) opposed faces (21, 22) on the jaws, or is adjustable and comprises either, Fig. 8, (not shown) a screw abutment (28) or Fig. 7, (not shown) a pin (36) on one jaw moving within an adjustable recess (37) on the other jaw. A second stop (25) may limit the opening of the jaws. The opposing surfaces 8 of the jaws may be flat or concave and may be roughened e.g. by the provision of ribs 17 and intermediate pockets, the ribs having pyramidal teeth (18).