baber/WOPTO huggingface dataset:
Patent GB-224142-A (GB)
Title: Improvements in and relating to change-speed gearing for motorcycles and the like
IPC: B62M25/00
Filed: 1924-03-04
Abstract: 224,142. Alltree, A. March 4, 1924. Variable-speed gearing. - Relates to three-speed gearing suitable for motor-cycles of the kind comprising three pairs of gears upon a main shaft a, Fig. 1, and countershaft h, the end pairs f, i and c, j being in fixed planes and the gears g, k of the middle pair being formed with clutch members and being movable to effect the speed changes. Each of the middle gears is moved independently of the other in two shifts in the same direction between its extreme positions. The gears g, k are operated by separate forks l, m, Fig. 4, with cams p, q co-operating with pins r, r<@> on a revoluble control shaft o. The developed cams are shown in Fig. 3, the inclined portions 1, 2, 3, 4 being all in the same direction and each inclined portion being opposite a non-inclined portion n, n<1> ,n<2>, n<3> of the other cam. A spring is preferably arranged between the forks l, m about the shaft o to bring the gear to neutral in the event of one of the pins r, r<1> shearing, thus preventing damage. Alternatively, the shaft o may carry the cams, and the forks the pins. In the arrangement shown in Fig. 1, a is the driving- shaft, a sleeve is driven, and the countershaft is geared down. The gears c, are fixed to the shafts a, h, and the gear f to the sleeve d, the gear i being loose. Clutch teeth d<1>, h<1> are formed on the sleeve d and shaft h and clutch teeth g<1>, h<1> on the sliding gears respectively are long enough to pass through the clutch teeth d<1>, and connect them to clutch teeth c', i<1> beyond on the gears c, i. The neutral configuration is shown. When the gear h is moved to the left, the drive passes through the train a, c, j, h, k<1>, i, and d. When the gear g is moved one step to the right from neutral, the drive passes through the train a, c, d. h, k<1>, k, g, g<1>, d<1>, d. The next step to the right frees the gear k of its shaft. The last movement brings the clutch teeth g<1> into engagement with the teeth c<1> causing a direct drive between the shaft a and sleeve d. The gear-box may be shortened by recessing clutch teeth into the faces of the gears. The countershaft may be geared up. A modification is described in which the gear g slides directly upon the shaft a. In a further modification, driving and driven shafts are arranged end to end and power passes from one end of the gear-box w to the other. A kick-starter may be combined, as shown in Figs. 1 and 9. The pawl v<3> of the starter engages a ratchet v<6> inside the largest countershaft gear j, and the starting-handle z is pivoted on the gear box w at some distance from the loose outer end v<5> of the countershaft, to which it is geared by a chain y.
Patent GB-1169821-A (GB)
Title: Ultrasonic Gauge System
Inventor: FRANCHI PIERRE
IPC: G01F23/296
Filed: 1967-02-06
Abstract: 1,169,821. Ultrasonic liquid level gauge. L'ECTRONIQUE APPLIQUEE. 6 Feb., 1967 [8 Feb., 1966], No. 5582/67. Heading H4D. In a liquid level gauge an ultrasonic pulse is emitted by a fixed transducer towards the liquid surface, reception of the echo pulse at the transducer initiates the emission of a succeeding pulse and the recurrence period of the resulting pulse train is measured. In the Fig. 3 embodiment a transducer 1 arranged either above or below the surface of liquid in a tank is coupled to pulse generator 7 which is triggered by the echo pulse. Output pulses at a frequency (1/t) determined by the separation of the transducer and liquid surface are applied from generator 7 to a gate 9 opened by pulses from generator 11 having a lower fixed repetition frequency (1/T). The first pulse passing gate 9 triggers bi-stable circuit 10, the second pulse passing gate 9 resets bi-stable 10 and the resetting of bi-stable - 10 causes gate 9 to close. Bi-stable 10 is thus in its triggered state for a period t in every interval T and meter 13 gives a reading proportional to t/T and thus indicates the liquid surface/transducer separation. To compensate for changes in the medium separating the transducer from the surface, the frequency 1/T may be made proportional to the ultrasonic wave propagation velocity in the medium by replacing generator 11 with a generator comprising a triggered pulse generator (15, Fig. 4) coupled to an auxiliary transducer (14) disposed in the same medium a fixed distance from a reflecting surface. For remote indication of liquid level in either the Fig. 3 or Fig. 4 system, the two series of pulses of periods t and T are applied to a mixer circuit and the mixer output is fed by cable to the remote location and then decoded (Fig. 5, not shown). In alternative embodiments providing a digital readout (Figs. 6 and 8, not shown), gate 9 is alternately opened and closed by the pulses of period t and clock pulses with a much smaller period T are applied to a counter (18) during the gate-open interval. Counter (18) is reset to zero by every other pulse t and its count (proportional to t/T) is indicated on a visual and/or printed readout 19. As in the Fig. 4 system, the frequency 1/T may be made proportional to the ultrasonic wave propagation velocity.
Patent GB-1422131-A (GB)
Title: Tray for the contacting of liquid and vapour
IPC: B01D3/32
Filed: 1972-02-07
Abstract: 1422131 Liquid-vapour contacting trays SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 5 Feb 1973 [7 Feb 1972] 5617/72 Heading B1R A liquid-vapour contacting tray 2 of circular or substantially circular horizontal cross-section having apertures for the passage of vapour and a plurality of liquid discharge members 5 each consisting of an oblong basin which is open at the top and extends partly above and partly below the tray the bottom part thereof being provided with one or more discharge openings, has a circumferential supporting beam 1 and one or more other supporting beams 3, 4 extending along a diameter and/or a chord of the tray, each of the basins being located so as to be either between the circumferential beam 1 and one or more of the other supporting beams or, in the case of a plurality of the other supporting beams, between two such other supporting beams. The other supporting beams may be attached to or separate from the circumferential beam. The tops of the supporting beams may be flush with the tops of the trays and may be provided with vapour passages. The basins in any one row may be staggered relative to the basins in the or an adjacent row.
Patent GB-1103977-A (GB)
Title: Transducer mounting arrangement
IPC: B08B3/12
Filed: 1966-02-09
Abstract: Transducers are removably coupled to a surface of a plate, the plate being adapted to suppress vibrational waves parallel to the plane of the plate.  Preferably grooves in the plate separate the transducers for suppressing the undesired vibrational modes.  A sonic or ultrasonic cleaning tank (10), Fig. 1 (not shown) comprises four side walls (12) and a bottom plate (14).  The outer surface of the bottom plate (14) carries an array of electromechanical transducers (20) Fig. 2 (not shown) for producing vibration to cavitate liquid inside the tank (10).  The plate (14) comprises a front layer (32) of stainless steel molecularly bonded to a thicker backing layer (34) of ordinary steel, aluminium or magnesium.  The backing layer (34) is provided with a rectangular grid of machined grooves (38, 40). Alternatively the grooves are circular to leave individual islands (42) to which a transducer is attached.
Patent GB-1083955-A (GB)
Title: Process for the preparation of polysulphones
IPC: C08G75/22
Filed: 1966-02-09
Abstract: Polysulphones are prepared by copolymerizing at least one conjugated diolefin having 4 to 8 carbon atoms with SO2 in the presence of a free-radical initiator, and hydrogenating the ethylenically unsaturated bonds of the resulting copolymer.  The hydrogenation is carried out in a solvent using a catalyst, and results in at least 50% hydrogenation and hydrogenated polymers having molecular weights of 20,000 to 1,000,000.  The polymerization is preferably effected in the presence of at least one copolymerizable ethylenically unsaturated monomer having 2 to 20 carbon atoms.  The polymerization may be effected in bulk, in an organic solvent, particularly a phenol, or in aqueous emulsion. Specified diolefins are: 1,3-butadiene, isoprene, 1,3-pentadiene, 1,3-hexadiene, 2,4-hexadiene, chloroprene, cyclopentadiene, cyclohexadiene, cyclooctadiene.  A wide variety of comonomers are specified, e.g. propylene, cyclopentene, styrene, vinyl chloride, ethyl acrylate, acrylonitrile, allyl amine, allyl alcohol, butenyl cyanide, and conjugated diolefins. The initiator may be a peroxide, azo compound or an inorganic oxidizing agent which forms a redox system with SO2. Exemplified hydrogenation catalysts are nickel, rhodium, and platinum metals and trichlorotris(triphenyl-arsine) rhodium (III).  Suitable hydrogenation solvents are sulpholane, perfluoroalcohols, and phenols.
Patent GB-248744-A (GB)
IPC: A47B55/02
Filed: 1926-03-01
Abstract: 248,744. Bertrix, L., (Assignee of Coulon, H.). March 6, 1925, [Convention date]. Shelves.-A ser'es of parallel shelves are linked together to form, in end elevation, a jointed parellogram A F E D and are supported at each end by a jointed triangular structure A B C. When in use the shelves are supported by adjustable struts G and the whole device can be folded to lie along the front legs A C of the end supports.
Patent GB-525439-A (GB)
Title: Improvements in dry gas meters
IPC: G01F3/22
Filed: 1939-02-21
Abstract: 525,439. Gasmeters. STEED, R. V. Feb. 21, 1939, No. 5728. [Class 54] The pivoted slide valves 12 of a dry gasmeter are operated by a crank through connecting rods 11 adjustably threaded in sleeves 18 having tangential ends 23 engaging pivot pins 20 projecting below lugs 21 on the valves, the force applied to the valves being substantially in the plane of the valve faces so as to prevent the valves from tilting.
Patent GB-307068-A (GB)
Title: Improvements in and relating to heat-exchangers
IPC: F22G1/00
Filed: 1929-02-21
Abstract: 307,068. Schmidt'sche Heissdampf- Ges. March 3, 1928, [Convention date]. Superheating by steam .-Sets of loop-tubes 6, 7 and 8, 9, or their equivalent with an outer reversing header, join a. series of superposed headers 10, 11, 12, one of which only, the inlet or outlet, is held rigidly as by a drain tube 19 secured to the cover 2. The other headers can move under expansion, rollers 20 being provided between the headers. The upper header 10 is connected to a heating steam inlet pipe 18 which is curved to allow for movement. In the example, steam to be superheated enters the casing 1 at 4 and, passing around baffles 13, 14, 15, emerges at 5. A direct connection 21 may be fitted to allow condensate, from the upper tubes to pass direct to the outflow.
Patent GB-448356-A (GB)
Title: Improvements in or relating to change-speed gearing
IPC: F16H61/02
Filed: 1935-02-23
Abstract: 448,356. Controlling change-speed gearing. ALBION MOTORS, Ltd., South Street, Scotstoun, and FULTON, H. W., 16, West Chapelton Crescent, Bearsden, both in Glasgow. Feb. 23, 1935, No. 5863. [Class 30 (ii)] Relates to controlling-means for change-speed gearing 1, Fig. 1, for motor-vehicles of the kind in which there is a manual preselector 22<1> and an executive control 4 operated by a fluid-pressure servomotor 2. The gearing 1 is of the type comprising epicyclic drums to which brakes are applied after selection when the lever 4 is released or allowed to be swung right by return springs, not shown, in the gear box. The servomotor 2 is rendered operative by a valve 6 which is opened to effect the brake-releasing stroke of the executive control 4 by the clutch-opening stroke of a main clutch pedal 7 and which valve 6 is subsequently closed to permit the return stroke of the control 4 in brake - engaging direction by the servomotor 2 independently of the clutch pedal 7. The valve 6 is connected to the pedal 7 through a two - part link 8, 8<a >pivoted to an arm 9 carrying a ratchetcam 11 presenting a step 12 engaged by a pawl 13 pivoted upon the lever 7 and held down by a spring 14. When it is desired to change after preselection, the pedal 7 is depressed. The pawl 13 pulls the link 8 after it and, as a quick-throwover lever 17 passes its dead centre, the valve 6 is shot from its closed position of Fig. 1 to its open position of Fig. 3. Suction in a reservoir 22 is communicated to the left side of a piston 3 which is sucked to and past the position of Fig. 3, by which the brakes in the gear-box 1 are all released. An arm 15 rigid with the pedal 7 has tripped up the pawl 13 so that the valve 6 is free to move independently of the pedal 7. In the partial stroke position of Fig. 3, a striker 21 on the piston rod 5 engages a striker 20 on the link 8a so that as the leftward piston stroke is completed, the lever 17 is carried over its dead centre leftwardly. The valve 6 is thus shot to its closed position opening the cylinder 2 to the atmosphere at 23 and the gear-box return springs bring the executive control 4 back to the position of Fig. 1 with the selected gear brake in engaged position.
Patent GB-194293-A (GB)
Title: Improved process of and apparatus for treating substances in an electric field
IPC: B01J19/08
Filed: 1923-02-28
Abstract: 194,293. Heis, L., and Jezter, H. March 2, 1922, [Convention date]. Gases and vapours, treating electrically.- Substances in the form of gases, vapours, or suspensed particles are forced through electric fields having an intensity of at least 10<5> volts per cm. ; a field of 10<8> volts per cm. is suitable for treating nitrogen. Ionization by collision is checked say by passing the gas through the electric field at a suitable velocity. The chemical ainnities of the substances are overcome, and reactions ensue which may be favoured by heat. Different substances may flow separately through electric fields and then be mixed to react with each other. The process is applicable to the production of nitrogen oxides from air. In one form of apparatus, one or more knife-edged discs 2 charged at a high potential by a conductive support 3, are placed centrally within a slightly larger cylindrical insulating gas passage 1. In another form, the high-potential disc is made of thin sheet metal and is placed in the narrower air-gap between insulating discs, and the gas &c. passes between the discs from or to a central space. Alternatively, free gaseous jets from nozzles may be treated. Instead of sharp-edged discs there may be used sharp points, or bodies made of wires, such as wire nettings or spirals. According to the Specification as open to inspection under Sect. 91 (3) (a), ionization may ba checked by highly compressing the gas, say to 100 atmospheres, or by adding chemically inert substances which lower the conductivity; it may be further diminished by the expansion of vaporizable substances. This subject-matter does not appear in the Specification as accepted.
Patent GB-124436-A (GB)
Title: Apparatus for Measuring Liquids which are Subjected to No Pressure or only to Slight Pressure such as Condensation Water, Spring Water and Liquids Discharged from Reservoirs.
IPC: G01F3/18
Filed: 1919-03-10
Abstract: 124,436. Ateliers de Constructions Soc. Anon. ci-devant A. Schmid. March 9, 1918, [Convention date]. Liquid-meters. - A liquid-meter comprises measuring-chambers 2, 3 Fig. 1, containing floats 9 connected to a lever 10 and provided with outlet valves 22, 23 connected to levers 18, 19. The lever 10 carries an arm 13 having a member 14, which is connected by a spring 15 to one arm of a three-armed lever 16, the other arms of the lever 16 co-operating with the levers 18, 19. At the end of the upward movement of either float, the lever 16 is operated to lift the outlet valve of the full measuring-chamber, to allow the outlet valve of the empty chamber to close and simultaneously to operate a member 8, Fig. 4, so that the incoming liquid is directed to the empty chamber. A counter 30 is operated from the lever 10.
Patent GB-1271912-A (GB)
Title: Improvements in or relating to the handling of shrinkable extruded material
IPC: C21D1/00
Filed: 1970-02-06
Abstract: 1,271,912. Extrusion-sintering. NATIONALSTANDARD CO. 6 Feb., 1970 [14 March, 1969], No. 5904/70. Heading B5A. [Also in Divisions B3, C7 and F4] In apparatus for heat treating an elongate extrusion which is shrinkable in the heat treatment, for example in the fabrication of elongated articles such as wire, tubing and strip formed by extruding metal compound compacts, the apparatus comprises an extruder 10, a furnace for reducing and sintering the extrusion, and a conveyer 14 having supporting means 30 for supporting the extrusion at spaced positions along its length whereby, as it is conveyed through the furnace, the extrusion is catenary between the spaced positions and is under no tension apart from its own weight. The supporting means can either extend longitudinally or transversely to the direction of movement of the conveyer. In the embodiment shown in Fig. 1, the extruder 10 supported as at 10<SP>1</SP> is preferably provided with a plurality of die discharge openings to discharge a plurality of continuous elongated extrusions, as at A, in side-by-side relation on to the conveyer 14 for passing through the furnace. In the embodiment shown in Fig. 5, the extruder 45 is supported above the upper runs of several endless belts 40 for reciprocatory movement transversely of the upper runs.
Patent GB-1099852-A (GB)
Title: Improvements in or relating to electromagnetic beam scanning devices
IPC: H01Q3/24
Filed: 1965-02-11
Abstract: 1,099,852. Waveguide distributers. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. Feb. 11, 1965 [Feb. 11, 1964], No. 6053/65. Heading H1W. [Also in Division H4] In an electromagnetic beam-scanning device a focusing reflector An, Fig. 1, is faced by a primary feed arrangement S 0  which comprises a cluster of horns K 1 , K 2 , K 3 , K 4 , Fig. 2, arranged as in monopulse operation, and known means, including hybrid couplers or magic-Ts, so that received optimized outputs S (sum), Ds (elevation difference) and Dg (azimuth difference) are obtained in fully decoupled waveguide channels. The Ds, Dg channels are connected via phase-adjusting elements Tr, Fig. 1, to an electronic switching device C 0  which is operated at the pulse repetition frequency (or a sub. multiple thereof) and which selects them in turn, and thence to a phase-shifting device De, which is electronically operated at half the frequency of operation of the device C 0 , and which alternately inserts and removes a phase shift of #. The S channel is connected to a duplexer Du, which enables the output of a radar transmitter Em to be divided equally between the horns. The received signal output of the duplexer Du, and the output of the device De are connected to the respective inputs of a coupler device Hy, for example, a magic-T. One output of the device Hy is connected to a receiver Re and the other to a matching load Ch or, alternatively, to another receiver arranged in diplex with Re. It is shown that the input to the receiver Re represents, successively, the signals received by adjacent pairs of horns, giving the effect of cyclic switching from beam to beam, each directed at a different angle to the axis, so effecting scanning. A cluster of more than four horns may be used, or a multi-mode arrangement. The switching device C 0  may comprise two hybrid 3dB couplings K, Fig. 4a, connected by two switching diodes C 1 , C<SP>1</SP> 1 , with auxiliary decoupling diodes C 2 , C 3  in the output channels. The phase-shifting device De may be constituted by a hybrid 3dB coupling K<SP>1</SP>, Fig. 4b, connected to two diodes C 4 , C<SP>1</SP> 4  placed a quarterwavelength from a short-circuited termination of the coupling.
Patent GB-216587-A (GB)
Title: Improved apparatus for simultaneously unwinding two or more kinematograph or like films and rewinding them after use
IPC: G03B21/43
Filed: 1923-03-02
Abstract: 216,587. Way, E. J. March 2, 1923. Printing - apparatus for kinematograph films has in combination therewith a carrier for film coil and several film coils mounted thereon, the carrier being operated to deliver the films simultaneously at the same linear speed and without tension ; the films may be delivered from the interior of the coils and at least one of them may be wound, after use, from the inside outwards. The Figure shows a printing apparatus having two gates 19, 20 and three film coils mounted on a carrier 2. The negative film 15 is delivered from the interior of the coil, passes through both gates, and is wound on a spool 23. The positive films 16, 17 are also delivered from the interiors of the coils, pass separately through the gates 19, 20 and are wound on spools 27. The carrier is driven by the means described in Specification 207,869, [Class 97 (i), Optical systems &c.], and the spools 23, 27 are driven by a flexible shaft 24 and a friction wheel 28 from the carrier. The coils are held in place by a flexible band 18 which is compressed by an iris diaphragm device 30 as described in Specification 172,033, [Class 97 (i), Optical systems &c.].
Patent GB-120740-A (GB)
Title: Improvements in and relating to Tractors with Flexible Endless Self-laying Tracks.
IPC: B62D11/08
Filed: 1917-04-30
Abstract: 120,740. Caterpillar Tractors, Ltd., (Holt Manufacturing Co.). April 30, 1917. Independent driving on opposite sides, and differential braking.-In endless-track tractors of the kind described in Specification 19691/14, a controlling-device is arranged to declutch and brake the driving wheels either simultaneously or independently. The clutch forks 14 and brake bands 13 are operated by means of cranked levers 15 connected by rods 18 to controlling arms 23 mounted on a concentric post 20 and sleeve 21 respectively. The arms 23 are fitted with cooperating shoulders and are operated separately for steering or simultaneously for stopping the vehicle. The brakes can be applied also by an independent lever 28 through a cross bar 25 and links 16. Specifications 11326/15 and 101,954 also are referred to.
Patent GB-1493749-A (GB)
Title: Biocompatible glass-ceramic
IPC: C03C10/00
Filed: 1976-02-17
Abstract: 1493749 Biscompatible glass-ceramic BATTELLE MEMORIAL INSTITUTE 17 Feb 1976 [20 Feb 1975] 06123/76 Heading ClM A biocompatible glass-ceramic consists of a vitreous matrix having dispersed therein crystals of a compound isomorphous with hydroxyapatite, the compound comprising at least the elements Ca, Si, P, O and Y or a lanthanide, and these crystals being surrounded in the matrix by crystals of The glass-ceramic may be made by forming a melt comprising, in mole per cent: homogenizing the melt, cooling to form a solid glass, and heat-treating to form the glass-ceramic. The heat-treatment may comprise heating at 400-600‹ C. for 2-8 hours, and then at 800-1000‹ C. for 4-8 hours. Alternatively, the solid glass may be powdered and the powder heated at 800-1000‹ C. for 15-60 minutes. The melt may optionally include up to 10 mole per cent NaF or up to 5 mole per cent CaF 2 , and 0-5 mole per cent Al 2 O 3 . The crystals isomorphous with hydroxyapatite may be of formula where x is an integer from 2-6 and M is Y or a lanthanide (preferably La), or of formula where M is as defined above. The glass-ceramic may be used as bone replacement material.