baber/WOPTO huggingface dataset:
Patent GB-1500752-A (GB)
Title: Process and apparatus for forming a tearably detachable portion on a sheet
IPC: B21D51/44
Filed: 1975-02-18
Abstract: 1500752 Easy-open can ends K TANIUCHI 18 Feb 1975 [14 Aug 1974] 6873/75 Heading B8D [Also in Division B3] A tearably detachable portion 11 is formed in a sheet by weakening the periphery of the portion and recessing the sheet at the portion. The tearable portion 12 of a steel can end, Fig. 1 (not shown), is formed by a line of weakness 26 produced by conventional dies, Fig. 2 (not shown). In a second operation, Fig. 3, the can end 10 is recessed between dies 28, 32 so as to thin the metal beneath the score line and form a thin wall 14 within the score line. Alternatively, Fig. 4, scoring and recessing are performed simultaneously between dies 40, 44 as between dies (60, 64), Fig. 5 (not shown), in which the thin wall surrounds the score line.
Patent GB-700872-A (GB)
Title: Improved air-cooled condenser for steam power plants, particularly for large plants
IPC: F28B1/06
Filed: 1951-03-22
Abstract: 700,872. Air-cooled condensers. HAPPEL, [nee SCHULENBERG], E. F. March 22, 1951 [Aug. 14, 1950], No. 6939/51. Class 64(3) Relates to air-cooled condensers for steam power plants of the kind comprising ribbed tube elements connected in parallel to the steam supply pipe and large diameter fans passing low pressure air over the tube system. According to the invention, a vertical air shaft of circular cross-section has vertical tube elements 1 of elongated cross-section forming a jacket round the shaft periphery, a coaxial suction fan 3 at the upper end of the shaft exhausting the air through a diffuser pipe 4. As shown in Fig. 2, steam enters at 7 an annular pipe 2 arranged in sections 2a trapezoidal in plan and passes through small pipes 8 leading from the central plane of the pipe 2 to corresponding sectional condenser tube elements 1 at the periphery of the air shaft. The fan 3 draws air over the tubes between guide plates 5, 6, the fan being driven by a motor 11 accommodated in the space under the plate 5. The fan exhausts through a flared diffuser 4 which may comprise multiple concentric flared rings. The condenser tubes 13, Fig. 6, are of oval section with plate fins 15 having stamped-out spacers 16.
Patent GB-522773-A (GB)
Title: Improvements in or relating to earth or dirt scrapers or scoops
IPC: E02F3/64
Filed: 1939-03-03
Abstract: 522,773. Earth scrapers. RUSTON-BUCYRUS, Ltd. March 3, 1939. Nos. 7002 and 7003. Convention dates, March 7, 1938, and Feb. 13, 1939. [Class 68 (i)] In an earth scraper with an earth-carrying front apron 19 above and forward of the digging bowl 13 when the latter is in digging position, the scraper blade 14 is formed of a long narrow plate curved or bent about offset longitudinal transverse axes so as to direct the earth substantially vertically upwardly and centrally. The lower forward corners of the blade may be sheared off.
Patent GB-340866-A (GB)
Title: Improvements in and relating to axle-bearings
IPC: B61F17/20
Filed: 1930-03-03
Abstract: 340,866. Lubricating. MATTHEWS, E. F., Elm Cottage, Watford Road, Wembley, Middlesex. March 3, 1930, No. 7012. [Class 12 (ii).] Channels in vehicle-axle bearings.-In an axlebox having a closed, annular, one-piece brass 2, lubricant raised by a blade 16 rotating with the journal 15 passes through ducts 12, 13 to slots 3, 4 in the brass and runs down the upper inclined surfaces 8 of the slots so as to drip freely from the edges 9 on to the journal. The part 10 of the inner surface of the brass in the vicinity of the edge 9 is tangential to the journal so as to form a wedge space 11.
Patent GB-931643-A (GB)
Title: Production of chlorotrifluoroethylene
IPC: C07C17/23
Filed: 1961-02-27
Abstract: Unsupported or supported chromium oxide catalyst is used in the reaction of 1,1,2-trichloro-1,2,2-trifluoroethane with hydrogen to give chlorotrifluoro ethylene (see Group IV(b)).  The catalyst may be in the form of pellets and is prepared by precipitating chromium hydroxide from an aqueous solution of chromium nitrate by adding ammonium hydroxide and heating the precipitate.  Supported catalysts may be prepared by soaking "Alundum" chips ("Alundum" is a Registered Trade Mark) in chromium nitrate and heating to 200 DEG C. or by precipitating chromium hydroxide on silica or calcium or magnesium fluoride and heating.  Supported catalysts may contain 1-60% by weight of chromium oxide.  A specified catalyst is prepared by adding a solution of potassium fluoride and potassium hydroxide to a solution of magnesium and chromium nitrates, boiling the mixture and drying the resulting precipitate at 120 DEG C. which is then granulated.  Specification 698,386 is referred to.ALSO:Chloro-trifluoroethylene is made by heating a mixture of hydrogen and 1,1,2,-trichloro-1,2,2, trifluoroethane at 475-550 DEG C. in the presence of chromium oxide catalyst and in a reaction zone bounded by surfaces of alumina, porcelain, fused silica or zirconia, the mol ratio of trichloro-trifluoroethane to hydrogen being at least 1,25:1.  In examples, 1,1,2 trichloro-1,2,2,-trifluoroethane is dechlorinated with hydrogen in mol ratios of (1) 2,1:1 with chromium oxide on "Alundum" (Registered Trade Mark) as catalyst in an "Alundum" tube and (2) 1,8:1 with the same catalyst and tube. Specification 698,386 is referred to.
Patent GB-412705-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J19/30
Filed: 1933-03-09
Abstract: 412,705. Discharge apparatus. M-O VALVE CO., Ltd., Marconi House, Strand, London, and SMITHELLS, C. J., c/o General Electric Co., Wembley, Middlesex. March 9, 1933, No. 7175. [Class 39 (i).] In electric discharge devices wherein an electrode forms an essential part of the envelope, at least a considerable part of this electrodewhich may be the anode-is coated with a layer of insulating varnish or enamel. Varnishes such as those known under the Registered Trade Marks "Bakelite" and "Glyptal" or Nobel's Low Bake enamel No. 31061 may be used ; the varnish may be sprayed on as the electrode is rotated and it is then baked for 15 minutes at 70‹ C. Specification 100,959, [Class 39 (i)], is referred to.
Patent GB-1143062-A (GB)
Title: Document handling apparatus
IPC: G03B21/64
Filed: 1967-02-15
Abstract: 1,143,062. Document feeding means. XEROX CORP. Feb. 15, 1967 [Feb. 21, 1966], No.7178/67. Heading G2A. A document (14, Fig. 1 not shown), is fed into copying apparatus and is conveyed by continuously moving endless bands 51, Fig. 3, to a first gate 60 where the document is arrested by pins 101 projecting up between the bands and is recorded by a micro-film camera (16). A solenoid 109 is then operated so as to cause the pins 101 to retract and thus allow the document to be fed to a second gate 65 where it is arrested by pins (120). Fingers 152 are then rotated up between the bands 51 through 180 degrees thereby depositing the document upside down upstream of the first gate 60. When the document again reaches the first gate, the uppermost side thereof is recorded and the document is then advanced past both gates, the pins being retracted due to operation of solenoids 109, 124 and falls into a tray 68. A new document is then inserted for copying.
Patent GB-386472-A (GB)
Title: Amusement devices
IPC: A63G25/00
Filed: 1932-03-10
Abstract: 386,472. Electric vehicles. MARKEY, F. L., North Ocean Boulevard, Salisbury Beach, Massachusetts, U.S.A. March 10, 1932, No. 7205. [Classes 79 (iii) and 79 (v).] Relates to amusement apparatus of the type in which cars, under the control of the occupants, are freely movable over a floor or platform, and consists in providing at the front of the cars images of animals or other objects connected with the steering gear and serving as a direction indicator. As shown in the Figure, the hood H, in the form of an animal encloses the driving and steering mechanism which may be of the general type described in Specifications 177,395, [Class 132 (i), Amusement and exercising apparatus &c.], 346,621, and 348,734, and comprises a rotatable casing 5 carrying a motor M driving the wheel 3 through the shaft 11 and bevel gearing 12. The casing is turned to guide the car by chain gearing from the steering column S. The power circuit for the motor comprises an electrically charged ceiling, a trolley collector T, foot-controlled switch 19, stationary brush 23, a ring 25 on the rotating casing 5, and an earthed floor A.
Patent GB-677896-A (GB)
Title: Improvements in furnaces for the exfoliation of vermiculite
IPC: C04B20/06
Filed: 1949-03-16
Abstract: Fuel oil burnt in a furnace for the exfoliation of vermiculite (see Groups V and XII) is admixed with 2 per cent by weight of triethyl phosphate.
Patent GB-882340-A (GB)
Title: Preparation of diolefins
IPC: B01J8/00
Filed: 1960-03-02
Abstract: <PICT:0882340/III/1> <PICT:0882340/III/2> C4-C6 olefins are dehydrogenated to diolefins by contact with a fixed bed of catalyst, e.g. calcium nickel phosphate, by a process wherein the catalyst bed is divided into a plurality of uniform sections parallel to the flow of vapours through the reactor, each section being separated from other sections by a gas-impermeable plate of sufficient strength to contain the catalyst in a substantially fixed position.  The plates may be disposed (a) around a longitudinal hub, and extending as vanes outwardly therefrom, as in Fig. 1, or (b) substantially perpendicularly to each other (Fig. 2).  Preferably, a particular section of the bed defined by the plates has a horizontal area of 144-4500 square inches.  Superheated steam and the olefins may be passed through the reactor during the dehydrogenation cycle and steam and excess oxygen passed during the regeneration cycle.  Particular sections of the catalyst bed may be isolated (e.g. as in Fig. 1) during the dehydrogenation cycle when said section is deactivated, as indicated by carbon mound formation; deactivation may be determined by analysing the exit gases from each section to ascertain any increase in the CO2 level.ALSO:<PICT:0882340/IV (b)/1> <PICT:0882340/IV (b)/2> C4-C6 olefins are dehydrogenated to diolefins by contact with a fixed bed of catalyst, e.g. calcium nickel phosphate, by a process wherein the catalyst bed is divided into a plurality of uniform sections parallel to the flow of vapours through the reactor, each section being separated from other sections by a gas-impermeable plate of sufficient strength to contain the catalyst in a substantially fixed position.  The plates may be disposed (a) around a longitudinal hub, and extending as vanes outwardly therefrom, as in Fig. 1, or (b) substantially perpendicularly to each other (Fig. 2).  Preferably, a particular section of the bed defined by the plates has a horizontal area of 144-4,500 square inches. Superheated steam and the olefins may be passed through the reactor during the dehydrogenation cycle and steam and excess oxygen passed during the regeneration cycle.  Particular sections of the catalyst bed may be isolated (e.g. as in Fig. 1) during dehydrogenation cycle when said section is deactivated, as indicated by carbon mound formations; deactivation may be determined by analysing the exit gases from each section to ascertain any increase in the CO2 level.
Patent GB-1163815-A (GB)
Title: Improvements relating to Flexible Ducting
Inventor: DAWSON GORDON BERTRAM
IPC: F16L11/02
Filed: 1967-02-16
Abstract: 1,163,815. Hoses. DOWTY MECO Ltd. 16 April, 1968 [16 Feb., 1967], No. 7460/67. Heading F2P. A flexible ducting, e.g. for carrying air for ventilation in mines &c., where a supply of air at low pressure is required, comprises a length 10 of fabric, made impermeable e.g. by application of a coating of rubber or plastics so that air, at pressures normally employed in mine ventilating systems, will not pass through it, and which is reinforced internally by a continuous resilient helically wound wire 12 the turns of which are connected by angularly spaced, longitudinally extending, inextensible tapes 11 which limit the axial separation of adjacent turns of the helical wire 12. The diameter of the wire helix is preferably slightly greater than the unstretched internal diameter of the tube which can be expanded by internal air pressure while the helically coiled wire is inserted therein after which the air pressure can be released so that the tube collapses on to the coil of wire. The tapes 11 preferably include two strips of self-adhesive material which are stuck together with the turns of the wire between them at the correct spacing. In an alternative method of assembly one end of an axially closed helix is inserted into an end of the tube with the adjacent end of each tape secured, e.g. by stitching, to that end of the tube. The tube is then extended axially and inflated while the wire coil is drawn through it e.g. by draw cords the other ends of the tapes then being secured to the corresponding other end of the tube.
Patent GB-478041-A (GB)
Title: Improvements in or relating to power transmission systems embodying a hydraulic clutch
IPC: F16D33/16
Filed: 1937-03-15
Abstract: 478,041. Hydraulic transmission of power. TUGWOOD, R. J. (Daimler-Benz Akt.-Ges.) March 15, 1937, No. 7540. [Class 69 (ii)] In a power-transmission system comprising an internal-combustion engine driving through a hydraulic clutch of the F÷ttinger type oil drawn from the engine lubricating system is circulated through the clutch by a pump which is not the engine lubricating pump. In a modification, the engine lubricating pump and the supply pump of the clutch are combined in a single constructional unit having a common drive shaft, the supply of liquid for the pumps being taken from a common storage vessel or from separate vessels. The engine M, Fig. 1, drives through a hydraulic clutch K, which may be a coupling or a torque converter, a vehicle or a subsidiary device thereon as, e.g. a high-speed supercharger; oil from the sump O or a storage vessel is delivered by the gear-wheel pump P to the passage L communicating with the lubricating points S of the engine, and also to the gear-wheel pump Pk which delivers a definite quantity to the working circuit of the clutch ; a return pump Pr may also be employed. In a modification, Fig. 2, the engine lubricating pump P and clutch supply pump Pk draw separately from the sump 0 or storage vessel, but are combined, together with the return pump Pr to form a constructional unit driven by a common shaft W. The lubricating and clutchsupply oil may be segregated by a partition T in the sump, or two separate vessels may be used.
Patent GB-235660-A (GB)
Title: Improvements relating to the control of electric substations
IPC: H04Q9/04
Filed: 1924-03-25
Abstract: 235,660. Ross, T. W., Ryder, C., and Metropolitan-Vickers Electrical Co., Ltd. March 25, 1924. Selective distant control systems.-In a distant control system for a motor-converter sub-station, a transformer 32, Fig. 1, having its primary connected to slip-rings of the converter 3 and its secondary to pilot wires 28, 29 extending between the substation and the control officeindicates the synchronizing voltage on a voltmeter 65, Fig. 2, which is connected when required by a dial switch 42. The converter field winding 18 is then regulated by a reversible rheostat-operating motor 20 controlled by relays 80, 81, either of which is energized by sending. superimposed direct current over one or the other of the pilot wires, the connections being made by setting contacts on the dial switch 42, and closing a push-button switch 58. In order to start the converter, current is sent from a switch 57 along a pilot wire 30 to energize a brushlifting motor 12 and a magnet 73 for closing a circuit-breaker 9. The field is then regulated as described above. When the necessary direct current voltage has been attained automatic relays connect a reactance coil 13 across the sliprings, short circuit the starting resistances 15, and finally replace the brushes on the slip-rings. The pilot wires 28, 29 are thereupon disconnected from the transformer 32 and connected across a resistance 34 in the direct-current main 5 leading from the converter, in order that indications may be obtained on the direct-current voltmeter 63 and ammeter 64 at the control station. Further regulation of the converter field can then be obtained in the same way as before. When everything is ready, the main direct-current switches 10 are closed by closing a push-button switch 59, which transmits a current of sufficient strength to energize a responsive relay 124. Means are provided for locking-out the set in case of incorrect synchronization or reverse polarity of the converter.
Patent GB-970872-A (GB)
Title: Improvements in and relating to spacing structures for electric windings
Inventor: SPENCER JOHN CHARLES
IPC: H01F27/30
Filed: 1960-03-03
Abstract: 970,872. Transformers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 8, 1961 [March 3, 1960], No. 7605/60. Heading H1T. A spacer separating windings at different voltages, e.g. of a transformer, comprises a two-part longitudinal member SP<SP>1</SP>, IP (Fig. 2), part SP<SP>1</SP> being of rigid resin impregnated asbestos while the part IP, adjacent the H.T. winding OC is of a material having a higher specific resistance and dielectric strength at high temperatures than the material of the part SP<SP>1</SP>. The part IP may be glass fibre sheet or highly refined asbestos laminate impregnated and bonded with resin. Several such spacers SP<SP>1</SP>, IP, are spaced equally around a primary winding IC forming a duct DU between primary and secondary windings for circulation of cooling medium. Dovetailed to each longitudinal spacer are intermediate spacers IS of silicon resin bonded glass fibre insulation which space the secondary disc coils from each other axially. Alternatively the intermediate spacers IS may be of the same material as the parts IP.
Patent GB-684969-A (GB)
Title: Improvements in or relating to steering mechanism for vehicles
IPC: B62D3/02
Filed: 1950-03-27
Abstract: 684,969. Steering gear. RANSOMES & RAPTER, Ltd., and WORSNOP, T. Feb. 9, 1951. [March 27, 1950] No. 7612/50 Class 114. [Also in Group XXXI] In a vehicle steering mechanism having means for reversing the direction of steering corresponding to a given movement of the steering wheel so that whichever way the driver is facing steering will be in the orthodox direction for a given movement of the steering wheel, the steering wheel is carried by a steering column which is arranged for rotary movement about its axis, the column is mounted on a pivot member fixed relatively to the vehicle and tilting of the column about the pivot reverses direction of steering. As shown the steering mechanism comprising a fixed part 11 of the steering column connected to a cylindrical inner casing 13, the part 11 housing a shaft 20 carrying a bevel gear 19. The gear 19 meshes with a bevel gear 17 on a shaft 16 mounted in the casing 13 and carrying a bevel gear 18. Either of the bevel gears 17, 18 can mesh with a gear 22 on a shaft 21 carrying the steering hand wheel 10. The shaft 21 is carried in an upper tiltable part 12 of the steering column, the part 12 being connected to a cylindrical outer casing 14 pivoted to the casing 13. Locking means may be provided to lock the casing 13 in either of its tilted positions or in a vertical position. The invention may be applied to wheeled or tracked vehicles or to boats.
Patent GB-595468-A (GB)
Title: Improvements in or relating to the sealing of cardboard or like boxes
IPC: B65D5/64
Filed: 1945-03-26
Abstract: 595,468. Boxes; packing. KODAK, Ltd. March 26, 1945, No. 7617. Convention date, April 15, 1944. [Classes 18 and 94 (i)] A cardboard or like box comprising inner and outer parts of rectangular section which fit together telescopically has the open seam or joint 18 around the lower edge of the box sealed by four adhesive coated strips 25, each of which is longer than the corresponding side of the box and is folded length-ways, the ends of the strips forming adhesive tabs 29, 31 which are secured to an adjacent side of the box. The tabs 29, 31 are so dimensioned that when it is pleated a portion of the outer tab 31 extends beyond the inner tab 29 and is secured by its adhesive to the adjacent side 16. The box is shown in inverted position.
Patent GB-145162-A (GB)
Title: Improvements in electrically driven luggage trucks and the like
IPC: H02P29/04
Filed: 1919-03-27
Abstract: 145,162. Carey, H. J. March 27, 1919. Controlling different functions by same handle; guarding against wrong movements.-The controller shaft 25 of an electrically-driven platform truck &c. is provided with a cam 24 which is in operative contact with the end of a spring- pressed thrust rod 20 connected to the brake 19, so that when the controller handle is turned to switch on the current, the brake, normally operative by means of a spring, is relieved.
Patent GB-609355-A (GB)
Title: Improvements in electric cable
IPC: H01B9/06
Filed: 1946-03-12
Abstract: 609,355. Oil-filled cables. TRIGGS, W. W. (American Steel & Wire Co. of New Jersey). March 12, 1946, No. 7654. [Class 36] An electric cable having liquid insulation 16 and one or more conductors 2 enclosed in an impervious sheath 10 has a plurality of concentric tubes 12 and 14, the outer tubes 12 being perforated at 22 to admit liquid. Initially both tubes 12, 14 contain gas. If the insulating liquid expands the pressure forces it through the openings 22 into the outer tubes 12, where it is retained by capillary action, the gas being trapped in segments 24. If the liquid pressure drops, the pressure of the compressed gas drives the liquid back into the cable. An oil and gas reservoir 26 is provided to stabilize the pressure of the system. Oil 28 is fed to the cable by means of tube 30. The top portion 32 contains gas under pressure and is in communication with both tubes 12 and 14. The conductors and tubes are twisted together into a helix. U.S.A. Specifications 2,138,362 and 2,316,808 are referred to.
Patent GB-365866-A (GB)
Title: Improvements relating to automatic spring actuated tip-up seats
IPC: A47C7/58
Filed: 1931-03-13
Abstract: 365,866. Tip-up seats. MITCHELL' RUSSELL, & CO., Ltd., Chattan Foundry, and WALKER, D., 5, Anderson Street, both in Bonnybridge, Stirling- shire. March 13, 1931, No. 7748. [Class 52 (ii).] In a spring-actuated tipup seat, the pivot pin 4 is integral with the seat standard 3, and the spring 8 is coiled round the outside of the boss 9 forming part of the bracket supporting the seat. The ends of the spring are secured to the seat and to the lug 11.
Patent GB-637784-A (GB)
Title: Improvements in and relating to apparatus for processing strips of material such as photographic film
IPC: G03D5/06
Filed: 1946-03-12
Abstract: 637,784. Coating webs. HEWITT, J., and SANDERS, H. W. March 12, 1946, No. 7756. [Class 140] [Also in Group XX] A roller 12 arranged to be moistened with a processing solution is adapted to be moved from a rest position as shown, along guides 17, 18 transversely over but out of contact with a strip of material 14, then to fall down and be moved back in contact with the material and thence up a ramp 19 and through hinged portions 20, 21 of the guides, to re-attain the rest position. As used in kinematograph apparatus in which short lengths of film are successively exposed, developed, fixed, projected and erased, developer from tank 4 is supplied by driven roller 6 to the roller 12, while the latter is in its rest position, and to ensure uniform application of developer to the film 14, rotation of roller 12 is prevented by ratchet mechanism 15, 16 during backward movement in contact with the film. After a cycle of operations by roller 12 a fixing roller 11, supplied with fixer from tank 3 by roller 5, is rolled over the film and back again, roller 11 being free to rotate in both directions ; the film 14 is then moved forward for the next processing cycle.