baber/WOPTO huggingface dataset:
Patent GB-517695-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D7/06
Filed: 1938-08-04
Abstract: 517,695. Centrifugal pumps. CORNELL, E. S. Aug. 4, 1938, No. 23113. Convention date, Aug. 4, 1937. [Class 110 (i)] A pump for radiator heating-systems has a. tangential inlet 14 to a suction chamber 53 formed over the impeller chamber 16, the floor of chamber 53 being formed by an annular disc 42 carried by the impeller blades 40. Each blade is cut away near the centre for half its height to communicate with a corresponding inlet aperture 43 in the disc 42, which has a flange 54 overlying a ridge 55 in the suction chamber 53. The casing 12 is U-shaped with chambers 16, 53 eccentric, and is flanged and bolted to end flanges on the inlet and outlet pipes 35a, 36a. The inlet passage 14 is narrowed by a projecting wall 52 which directs the incoming water outwardly to an inlet port 14a of smaller diameter than that of the passage 14. The casing may be mounted on a resilient rubber ring 33 and may have the motor secured to it by rubber sleeves 20 and washers 20a or by a spring suspension. The outlet passage 15 is tangential to the impeller chamber 16.
Patent GB-914174-A (GB)
Title: Burners for hydrocarbon gases
IPC: F23D14/26
Filed: 1961-06-27
Abstract: 914,174. Gas burners. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. June 27, 1961 [June 29, 1960], No. 23263/61. Class 75 (1). A burner in which hydrocarbon gases are burnt in admixture with air, or with air and oxygen, comprises alternate slot-shaped auxiliary nozzles 5 and round auxiliary nozzles 6 surrounding the main burner nozzles 3. The gas/air mixture supplied through an inlet 1 passes via a distributing chamber 2 to the main burner nozzles 3 and via branch channels 4 to the auxiliary nozzles 5, 6. In Fig. 2 (not shown), the auxiliary nozzles are arranged in a rectangle surrounding a row of main burner nozzles.
Patent GB-652133-A (GB)
Title: Improvements in and relating to the electrical detection of vapours and the like
IPC: G01M3/20
Filed: 1948-09-06
Abstract: 652,133. Determining physical qualities of materials. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 6, 1948, No. 23410. Convention date, Sept. 18, 1947. Addition to 652,132. [Class 37] Apparatus as described. in Specification 648,367 and the parent Specification for detecting certain finely divided substances in a gas by bringing the gas into contact with a positively charged electrode to produce a flow of positive ions is characterized by the addition of audible or visual means for indicating the presence of the detected substance by means of a bridge circuit. As shown, the discharge cell 1, together with resistance 15 and potentiometer 16, form a bridge, whose unbalance current is amplified by valve 17 and indicated by a meter 22 in the anode lead. The anode current may also produce a pulsating current by charging condenser 29 in parallel with discharge tube 23, the resulting A.C. being fed to a loud-speaker 30 via an amplifier valve 31. Visual indications may be obtained from the discharge tube 23, or the loud-speaker 30 may be replaced by suitable light producing means.
Patent GB-355482-A (GB)
Title: Semi-automatic gear engaging transmission
IPC: F16H3/08
Filed: 1930-08-05
Abstract: 355,482. Variable-speed gearing; one-way clutches. BIERETZ, E. D., 3208, Hayward Avenue, Baltimore, and NEAL, J. J., Bengies, both in Maryland, U.S.A. Aug. 5, 1930, No. 23415. [Class 80 (ii).] Change-speed gearing comprises a female helix 29, Fig. 1, carried by the driving-shaft 10 axially movable alternatively into engagement with male helices 31, 30 fast on driven shaft 11 for driving or braking shaft 11 respectively. The helix 29 is formed in a coupling sleeve 25 which slides on feathers 23 inside a hollow extension 22 of shaft 10. The sleeve 25 has extensions 28 fitting over cylinders 26, 27 fast on shaft 11 so as to produce a dashpot effect when either clutch engages or disengages. The invention is shown applied to a three-speed gear on a vehicle, the clutch described being the direct-drive clutch. The gears 49, 62 for middle and low speeds are formed integrally with the coupling sleeves. Gear 49 is shown moved to the right into clutched operative position. If the engine is throttled, shaft 11 overruns gear 49 so that the latter. screws off and moves to neutral mid-position. Further movement of gear 49 to the left engages the screw-such as 30 on the left which has the effect that the engine can be used as a brake. Control rods 36 &c. are arranged so that when the accelerator is released, the coupling members will come to neutral. Reversing.-gearing (not shown) is preferably fitted to the engine side of the transmission. The engaging ends of helices 29, 31 are shown in Fig. 8. A form of clutch with a single clutch helix is illustrated.
Patent GB-1218106-A (GB)
Title: Improvements relating to metal casting apparatus
IPC: B22D13/10
Filed: 1968-05-17
Abstract: 1,218,106. Cores; centrifugal casting. GLAMORGAN PIPE & FOUNDRY CO. 17 May, 1968 [18 May, 1967], No. 23476/68. Heading B3F. A metallic end core 28 (Fig. 2) is fitted to the pipe-withdrawal end of a centrifugal pipe casting mould 34 and is held thereto by a centrifugal locking finger 36 which abuts a projection 33 of the core 28. A facing insert 40, preferably of brass, extends perpendicular to and around the inner mould surface, to form a casting surface for the end of a pipe 24. The end core casting surface is patterned by providing grooves, indentations or knurling which hold the solidified end surface of the pipe 24 firmly in position during the cooling of the pipe to prevent ellipsoidal deformation. In Fig. 4, a brass insert 46 is welded to the core body 28 and has a plurality of indentations 44 equally radially spaced.
Patent GB-309809-A (GB)
Title: Improvements in or relating to beds for invalids
IPC: A61G7/00
Filed: 1928-08-15
Abstract: 309,809. Iplicjian, A. Aug. 15, 1928. Bedsteads convertible into seats; bedsteads fitted with seats.-In a bedstead the supporting frame for the mattress is provided with a removable section mounted independently upon legs or suitable underframing 4 the mattress being formed with a corresponding removable section 3 adapted to be drawn out with the supporting frame section to constitute a seat or stool. The underframing 4 may be provided with a foot rest 5. A framework 6 constituting a back and arm rests may be provided for detachable attachment to the underframing 4.
Patent GB-577737-A (GB)
Title: Improvements in or relating to apparatus for sweeping and cleaning chimneys and flues
IPC: F23J3/02
Filed: 1944-11-24
Abstract: 577,737. Chimney-sweeping devices. NEWELL, G. A. Nov. 24, 1944, No. 23501. [Class 126] A device for sweeping and cleaning chimneys comprises a hood fitting tightly over the fireplace and connected by a flexible tube to a vacuum-producing plant. The part B, Fig. 2 of the hood is attached by suction pads G, fitted with air valves G<1>, to the front of the fireplace. The part A of the hood contains a perforated tray C with a lip C' and a flange C' for guiding the brush rods L which bear against the member E in the opening D. To this opening D is attached tubing 'J fitted with bearings K through which pass the rods L, a branch J' being connected to the vacuum-producing plant. Airtight sleeves H are provided to facilitate manipulation of the brush.
Patent GB-232162-A (GB)
Title: Improvements in or relating to annealing or cementation boxes
IPC: C21D9/00
Filed: 1924-10-06
Abstract: 232,162. Felten & Guilleaume Carlswerk Akt.-Ges. April 11, 1924, [Convention date]. Annealing - boxes; cementation. - In a wrought iron annealing or cementation box of the kind in which the upper rim a is bent outwardly from the casing and provided with a reinforcing ring welded or shrunk on to the rim, the reinforcing ring d is, welded or shrunk on to the rim a, the bend in the rim a and the width of the ring d being such as not to narrow the inner width of the casing c. If the rim is bent outwards more sharply so as to yield a better support for the cover C, the ring d may be fitted externally on the rim a. A second reinforcing ring e may also be welded or shrunk internally or externally on the rim a.
Patent GB-1523164-A (GB)
Title: Ignition systems for internal combustion engines
IPC: F02P3/05
Filed: 1975-07-30
Abstract: 1523164 Ignition systems P COISSARD 30 July 1975 23631/75 Heading F1B Control of an I.C. engine ignition system is effected to maintain the duration of energization of the coil substantially constant during periods of constant speed irrespective of the actual speed, i.e. the duration returns to the same constant value after acceleration or deceleration from one speed to another. As shown, a periodic command signal 110, e.g. from a cam-controlled generator 11, initiates in a generator 12 discharging of a condenser at a constant rate to produce a first slope signal. An element 14 then slows or shifts the first slope signal to form an engine-speed-related second slope signal which, when it exceeds a predetermined threshold, produces an output signal 120 of substantially constant duration to control energization of the coil. Detailed circuit diagrams are described providing temperature stability, protection against abnormal rises in the supply voltage, regulating compensation at start-up, and acceleration correction.
Patent GB-618470-A (GB)
Title: Improvements in or relating to chucks
IPC: B23B31/103
Filed: 1946-08-09
Abstract: 618,470. Sockets. RIGID, Ltd. Aug. 9, 1946, No. 23671. Convention date, Aug. 27, 1945. [Class 83 (iii)] A chuck comprises a socket 2 provided with a plurality of clamping cams 27 which can be turned relatively to the socket into two positions in which they respectively engage or release a shoulder 50 on a bushing 46 to which a tool 53 is secured. The socket is provided with a plurality of toothed pistons 20 each engaging one of the cams, the teeth 21 of the pistons meshing with the teeth of a sleeve 23 screw - threaded on to the socket. By turning the sleeve 23, the cams 27 are each turned through a right angle to engage or release the shoulder 50. A dog 32 prevents further rotation of each cam 27. The bushing is positively driven by means of a key 55. The socket 2 is releasably secured to the spindle 1 by means of screws 6 and clamping sleeves 7, each sleeve being spring-pressed against the head of the screw so that when the latter is turned, the sleeve is turned through a right angle so that it can be passed through an opening 17 in the socket to enable the latter to be removed. A stop 12 prevents each sleeve from being turned through more than a right angle. A rotatable plate 40 is provided for closing the openings 17 in the socket and corresponding openings in the sleeve 23. Milling-cutters.-The Specification as open to inspection under Sect. 91 comprises modifications in which means similar to those used for securing the socket to the tool spindle are used for securing to the latter a milling-cutter, a milling arbor, or a holder for a milling-cutter. This subject-matter does not appear in the Specification as accepted.
Patent GB-153434-A (GB)
Title: Improvements in fertilizers and their method of manufacture
IPC: C05D11/00
Filed: 1919-09-26
Abstract: 153,434. Hyatt, W. H., and Fellowes, E. N. Sept. 26, 1919. Manures.-A solid fertilizer containing calcium carbonate, and sodium and calcium sulphates is obtained by mixing powdered chalk in excess with nitre cake. Specification 2335/01 is referred to.
Patent GB-963333-A (GB)
Title: Aircraft alighting gear
Inventor: WOOD SIDNEY WILLIAM HENRY
IPC: B64C25/34
Filed: 1960-07-07
Abstract: 963,333. Aircraft undercarriages. DOWTY ROTOL Ltd. June 23, 1961 [July 7, 1960], No. 23788/60. Heading B7G. An aircraft alighting gear includes a retractable leg 11 pivotally carrying a bogie 15 or endless track, and a compound linkage 22, 24, 28 pivotally connected at 26 to the bogie or endless track, at 23 to leg 11, and at 31 to the aircraft 13 to correctly position the bogie or endless track for storage during retraction, no landing load being transmitted through point 31. The leg 11, containing a shock absorber, is pivoted at 12 to the aircraft 13 and is retracted by a jack pivoted to the aircraft and to a lever 20 integral with leg 11. The compound linkage, which includes a bellcrank 22 pivoted to lever 28 and telescopic strut 24, maintains the bogie in a substantially constant angle relative to the aircraft during retraction. The lever 28 is attached to the aircraft by a pin and slot connection 30, 31. An upper lock and a lower lock 35 are provided and the bogie has two wheels 18.
Patent GB-480729-A (GB)
Title: Improvements in hydrometers
IPC: G01N9/12
Filed: 1936-08-31
Abstract: 480,729. Hydrometers. PERMUTIT CO., Ltd. Aug. 31, 1936. Convention date, Sept. 20, 1935. [Class 97 (iii)] A thin metal stem 15 is attached to an hydrometer float 5 by resilient grippers 16. Preferably the grippers 16 engage an annular groove near the top of the float which is also provided with a nipple 14 engaging and centralizing the stem 15. The latter is provided at the top with a small pocket 22 for ballast. A thermometer 6 indicating directly the temperature corrections to be applied to the hydrometer readings is mounted in the float 5.
Patent GB-1003982-A (GB)
Title: Improvements in tank furnaces for the manufacture of glass or like mineral materials
IPC: C03B5/182
Filed: 1962-06-21
Abstract: <PICT:1003982/C1/1> A continuous glass-melting furnace of the tank type with gas firing ports 4 has an homogenizing compartment 10 extending transversely of the furnace downstream of the melting zone 1 and defined by a hearth 5 lower than that of adjacent zones and by vertical walls 7, 8 terminating below the upper level of the molten glass, said compartment 10 being heated additionally by a view of vertical electrodes 9.  In a modification, Figs. 3 and 4 (not shown), vertical posts cooled by air or other fluid are arranged symmetrically adjacent the walls of the compartment 10 in staggered relationship with the electrodes.  Another modification, Figs. 5 and 6 (not shown), has the electrodes and cooling posts arranged unsymmetrically.  A final modification, Fig. 7 (not shown), has additional rows of vertical electrodes alongside the walls 7 and 8 in the melting zone 1 and in the refining zone 2.  The lower hearth 5 gives a bath depth 20-80% greater than that of surrounding zones and the length of the compartment 10 may be from 1/6 -\ba1/2 of that of the melting zone 1.  The convection currents are suitably varied by the different arrangements.
Patent GB-917439-A (GB)
Title: Ethylene polymerisation catalyst
IPC: C08F110/02
Filed: 1961-07-03
Abstract: Polyethylene having a molecular weight distribution of less than 10/1 may be prepared by contacting ethylene at 20 DEG  to 135 DEG C. with a catalyst solution prepared by adding vanadium oxytrichloride to an aluminium compound of formula RaAlCl(3-a) in which R is an alkyl group containing 2 to 8 carbon atoms and a is 1 or 2, the molar ratio of the aluminium compound to the vanadium oxytrichloride being at least 20:1 and both compounds being in solution in an inert liquid organic medium.  The aluminium compound may be ethyl, n-propyl, isopropyl, n-butyl, isobutyl, isoamyl, n-hexyl or 2-ethylhexyl aluminium dichloride; or diethyl, ethyl-propyl, diisopropyl, diisobutyl, diheptyl or diisooctyl aluminium chloride.  Specified liquid media which may also serve as polymerization media are pentane, n-hexane, cyclohexane, n-heptane, n-octane, benzene, toluene, methylene chloride and mixtures of cyclohexane with chloroform and chlorobenzene.  Polymerization may be effected in the presence of hydrogen, the reaction may be terminated by the addition of an alcohol and the product purified by washing with alcoholic hydrochloric acid.
Patent GB-877959-A (GB)
Title: Improvements in or relating to devices for the lateral displacement of crop lying onthe ground
IPC: A01D78/00
Filed: 1958-07-25
Abstract: 877,959. Haymaking machines. VAN DER LELY N.V., C. July 25, 1958 [Aug. 12, 1957], No. 24103/58. Class 6(3). A haymaking machine comprises a flat frame consisting of first and second beams 6, 5 rigidly connected together in parallel relationship ground-wheels 3, 4 being associated with the beams for supporting the frame, the arrangement being that in a first working position the rake-wheels can all be mounted on the first beam in alignment, for side-delivery, the frame being then mainly behind the rake wheels, and in a second working position some of the rake-wheels can be transferred to the second beam 5 which is connected to the remainder of the frame at one end only. The frame is completed by a strut 7 and a reinforcing strip 9. Each frame member 5, 6, 7 may comprise a pair of vertically spaced tubes. The device is mounted on three swivel-wheels 2, 3, 4 the swivel axes of which can be locked by pins 19 and sector-plates 17. The machine may be towed in the direction I for sidedelivery or the direction III for tedding or swath-turning. Some of the rake-wheels from the beam 6 may be transferred to sockets on the beam 5 for swath-turning. Specification 877,958, is referred to.
Patent GB-186814-A (GB)
Title: Improvements in drawing pens or pencil holders
IPC: B43K17/00
Filed: 1921-09-12
Abstract: 186,814. Akashi, K. Sept. 12, 1921. Pencil-holders consist of two gripping-members 1, 2, of which the member 1 has a rectangular aperture 5 with inclined end faces, and the member 2 carries a projection 3 with inclined faces 4 adapted to pass into the aperture 5. A screw bolt 6 carried by the part 2 passes through an aperture 8 in the part 1 and carries a clamping- nut 7.
Patent GB-279610-A (GB)
Title: Improvements in or relating to wringers, mangles or ironing machines
IPC: D06F45/00
Filed: 1926-09-30
Abstract: 279,610. Sheppee Motor Co., Ltd., and Jowitt, S. G. Sept. 30, 1926. Ironing-machines with two rollers; driving- gear for folding mangles and wringers - The vertical power shaft 17 carried by the stationary frame 15 is provided with a half clutch 6. The shaft 20 driving the rollers through a gear-box 8 carries a corresponding half clutch 6<a>, so that on the folding frame 3 being swung down to inoperative position the power is automatically declutched and is again clutched in when the folding frame is raised.
Patent GB-658382-A (GB)
Title: Improvements in and relating to pedals, especially for cycles and similar vehicles
IPC: B62M3/08
Filed: 1949-09-21
Abstract: 658,382. Internal clamps. MAGONDEAU, R. DE P. DE. Sept. 21, 1949, No. 24256. Convention date, Oct. 1, 1948. [Class 44] [Also in Group XXXI] A pedal or foot lever comprises a pair of side members b having flanges extending parallel to the foot bearing surface, and non-slip means a made of rubber or other flexible elastic material outwardly formed with cup-like parts which exert a suction grip on the sole of the user's foot, and inwardly with knotlike mounting parts a' engaging in holes in the flanges to removably secure the knoblike means. The parts a<1> may each be formed with an inner cavity communicating with the outer surface of the cup a through a slit-like aperture. Retaining means such as balls c may be inserted in the cavities to expand the knobs a<1>.
Patent GB-421006-A (GB)
Title: Improvements in and relating to the manufacture of sterilizing agents
IPC: C02F1/76
Filed: 1933-09-01
Abstract: N - Chloroazodicarbonamidines such as N - dichloroazodicarbonamidine are prepared by reacting a hydrazo- or azo-dicarbonamidine or salt thereof with a hypochlorite or hypochlorous acid preferably in aqueous solution at low temperatures.  The product may be used as a fungicide, germicide, bactericide, antiseptic, disinfectant, preservative, prophylactic or sterilizing agent with or without the addition of sodium phosphates or silicates.  The Specification as open to inspection under Sect. 91 refers also to the use of N-chloro derivatives of oxidants of redox systems as sterilizing agents.  Such substances include N - monochloronaphthaquinoneimide, N - di - chloroquinonediimide, N - monochloroquinoneimide, N - monochlorodibromquinoneimide, N - monochloromethylquinoneimide, and N-monochlorodichlorquinoneimide.  This subject-matter does not appear in the Specification as accepted.ALSO:N-Chloroazodicarbonamidines may be used as fungicides, germicides, preservatives, or prophylactics. They may be used in solution or in the form of suspensions containing protective colloids, and may be used in admixture with phosphates or silicates to prevent corrosive action on metals.
Patent GB-718381-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02D9/00
Filed: 1951-10-18
Abstract: 718,381. Spray carburetters. WILTSHIRE, A. S. Oct. 20, 1952 [Oct. 18, 1951], No. 24302/51. Class 7(3) In a carburetter in which a variable choke aperture is controlled by a piston working in a vacuum chamber, the vacuum chamber being connected by a duct to the inlet passage at a point on the side of the choke aperture nearer to the engine and between the choke aperture and the mixture control throttle and the piston also controlling a needle for varying the area of the fuel jet, a further passage is provided communicating with the vacuum chamber and connecting or adapted to connect it to the inlet passage on the side of the throttle nearer to the engine whereby a pressure drop across the throttle may be utilized to modify the relative pressure in the vacuum chamber and thus, the controlling effect of the piston. As shown, a sliding throttle valve 15 and attached fuel control needle valve 16 are operated by engine suction which acts on the upper surface of the piston 5. The engine suction is transmitted to the space 7 through conduits 9, 11 which lead to opposite sides of a butterfly valve 3. Restrictions 10, 12 may be sharp-edged as shown or Venturi shaped. One of the restrictions may be omitted. Alternatively, the restrictions may be adjustable. Screw-controlled needle or conical valves may be employed. The restrictions may be formed in screwthreaded inserts. This enables the carburetter setting to be altered for different engine requirements by substituting inserts with different restrictions. The restoring force on the piston may be provided by its own weight and/or by a spring. The passage 11 may be connected to the inlet passage at any convenient point between the throttle and the combustion chambers. Specification 510,753 is referred to.
Patent GB-1116059-A (GB)
Title: Apparatus for putting bait on fishing hooks attached to a line
IPC: A01K91/18
Filed: 1967-05-25
Abstract: 1,116,059. Baiting fishing hooks. 0. J. JACOBSEN. 25 May, 1967 [26 May, 1966], No. 24345/67. Heading A1A. Apparatus for baiting fishing hooks 15 attached to a line 14 comprises a bait container 1 having a vertical slit whereby the line can be arranged so that the hook is drawn through a funnel 2 and passes through an outlet spout 3. A beehiveshaped cage of resilient fingers surrounds the outlet spout and serves to press the bait on to the hook.
Patent GB-900488-A (GB)
Title: Tobacco products and processes therefor
IPC: A24B15/12
Filed: 1958-07-29
Abstract: In the production of tobacco sheets from tobacco particles held together by a binding agent, the tobacco is dry ground to particles of which more than 90% by weight pass through a 100-mesh screen, more than 86% by weight pass through a 200-mesh screen, and not more than 6.3% by weight pass through a 325-mesh screen. The tobacco particles are made into a pasty mixture by the addition of a binding agent formed of methyl cellulose, triethylene glycol, diatomaceous earth, siliceous catalyst, and water, spread into a thin layer and dried to form a coherent tobacco sheet.  At least 70% by weight of the particles passing through the 200-mesh screen preferably have maximum dimensions in the range 40 to 65 microns.