baber/WOPTO huggingface dataset:
Patent GB-1147537-A (GB)
Title: Air-cooled rotary piston internal-combustion engine
IPC: F02B55/06
Filed: 1966-04-05
Abstract: 1,147,537. Rotary-piston internal combustion engines. YANMAR DIESEL ENGINE CO. Ltd. April 5, 1966 [April 6, 1965], No.15140/66. Heading F1F. An air-cooled, rotary-piston I. C. engine of the trochoidal n and n + 1 lobe type in which the piston has one more side than the inner epitrochoidal profile of the centre housing has lobes includes at least two open-ended passages extending through the piston between the faces thereof adjacent the end housings and wherein the end housings are provided with ports for the flow of air-fuel mixture and independent ports for the flow of cooling air, so that on rotation of the piston the open ends of the passages periodically at least partially overlie the ports whereby to cool the piston fuel-air mixture flows through each passage when each passage moves through a one region of the engine and cooling air flows through each passage when each passage moves through another region of the engine. As shown applied to a three-sided piston 9, Fig. 1, planetarily rotatable within a two-lobed epitrochoidal centre housing 1 closed at its ends by end housings 3, 5, the piston at each apex corner has an open-ended passage 41 and adjacent the piston hub between each pair of passages 41 an open-ended passages 43. Ports 37, 47 in the end housing 3 and ports 33, 45 in the end housing 5 are shaped and positioned so that in all positions of the piston the ports are isolated from the engine working chambers. Cooling air generated by an enginedriven fan 17 passes through an air cleaner 55, the port 47 each open-ended piston passage 41, 43 and thence the port 45 to atmosphere to cool the end housings and the piston in the hot region of the engine adjacent the spark-plug 29. Fuelair mixture admitted to the engine through a passage 35 in the end housing 5 passes through the port 33, each open-ended piston passage 41, 43 and the port 37 to cool the piston in its cold region before entering the engine working chambers through a side inlet port.
Patent GB-228490-A (GB)
IPC: C21D9/06
Filed: 1924-06-24
Abstract: 228,490. Compagnie des Forges de Chatillon Commentry et Neuves- Maisons. Feb. 1, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Tempering. - Metal bars of unsymmetrical cross-section, such as flanged rails, are maintained straight during cooling from rolling temperature by artificially cooling the thicker parts by immersing these parts in or sprinkling them with water or other liquid or blowing on them atomized liquid, vapour, air &c. This artificial cooling may be sufficient to give the bars a reverse curve, in which case it is interrupted before the bars attain room temperature so that a straight bar is finally obtained.
Patent GB-735521-A (GB)
Title: Improvements relating to the removal of vanadium and/or sodium from petroleum and hydrocarbons of petroleum origin
IPC: C10G45/04
Filed: 1952-06-18
Abstract: Crude petroleum or hydrocarbons of petroleum origin containing vanadium and/or sodium are refined by contacting with fuller's earth, in the presence of hydrogen, under such conditions of temperature and pressure that the vanadium and/or sodium is deposited on the fuller's earth.  The preferred refining conditions are a temperature of 750-800 DEG  F., a pressure of 500-1500 p.s.i.ga., a space velocity of 0.5-2.0 v./v./hr. and a hydrogen recycle rate of 1000-10,000 S.C.F./B.  The refined product may be passed to a catalytic hydrogenation process for the removal of organically combined sulphur.  Thus, crude petroleum or a petroleum residue may be refined according to the process of the invention and then hydrofined using a catalyst consisting of cobalt and molybdenum oxides supported on alumina.  In an example, a petroleum residue is refined by contact with pelleted fuller's earth in presence of hydrogen, the refined product having reduced sodium, vanadium and sulphur content. Specification 729,301 is referred to.
Patent GB-496879-A (GB)
Title: Improved manufacture of azo-dyestuffs
IPC: C09B29/08
Filed: 1937-06-02
Abstract: Monoazo dyes, dyeing leather valuable brown shades, fast to light, acid and alkali, are obtained by diazotizing an amine of p  the general formula <FORM:0496879/IV/1> wherein X is NO2, Cl, Br or SO3H but only one X may be NO2 and Y is an alkyl group which may carry a solubilizing substituent, and coupling with a compound of the general formula <FORM:0496879/IV/2> wherein Z is a solubilizing group. Examples relate to the preparation of the dyestuffs: (1) 2 - methyl - 4 - nitro - 6 - bromoaniline --> diphenylamine-2-carboxylic-21 - sulphonic acid; (2) 2 - o  - sulphomethyl - 4-nitro-6-bromoaniline --> diphenylamine-2-carboxylic - 21 - sulphonic acid; (3) 2-o -sulphomethyl-4-nitro - 6 - bromoaniline --> diphenylamine-2 : 21-dicarboxylic acid.  Diphenylamine-2-carboxylic-21-sulphonic acid is obtained by reaction of 2-chlorobenzoic acid with aniline-2-sulphonic acid in presence of an acid-binding agent.  2 -o - Sulphomethyl-4-nitro-6-bromoaniline is obtained by brominating 2-o -sulphomethyl-4-nitroaniline.  The Specification as open to inspection under Sect. 91 comprises also the manufacture of the dyestuffs from the components in which X is any negative substituent, both substituents X may be NO2 and one Z may be H.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1003964-A (GB)
Title: High energy plasma source
IPC: H05H1/00
Filed: 1963-04-18
Abstract: 1,003,964. Jet propulsion plant. VITRO CORPORATION OF AMERICA. April 18, 1963 [April 19, 1962], No. 15359/63. Heading F1J. [Also in Divisions H1 and H5] A high-energy arc-discharge plasma source, e.g. for use as a plasma propulsion device, comprises a cathode having a tapering, as shown conical, surface 12 projecting forwardly of an anode surface 18, a gas, e.g. argon, being caused flow transiently adjacent the cathode surface. The gas introduced through one or more pipes 34 flows through the porous anode 15 which is composed of moulded carbon or sintered tungsten particles to provide longitudinal channels 16; alternatively, channels 16 may be drilled or moulded in a solid conductive anode. Cooling channels 31 are provided in the anode holder 20 and coolant is also circulated within the cathode holder 25. In a modification the tip of the conical cathode surface is recessed to form a sharp outer rim on which the charge concentrates. It is stated that the device also provides considerable energy in the ultraviolet and infra-red ranges as well as in the visible range. In other embodiments gas may be passed through openings in both the cathode and the anode.
Patent GB-560305-A (GB)
Title: Improvements connected with fluorescent tubular discharge lamp fittings
IPC: F21V23/06
Filed: 1942-11-03
Abstract: 560,305. Tubular discharge lamp fittings. REVO ELECTRIC CO., Ltd., and REEVES, F. H. Nov. 3, 1942, No. 15445. [Class 75 (iv)] In a fluorescent tubular discharge lamp fitting of the kind in which the auxiliary control gear is located wholly or in part within the ends of the reflector trough a the mains leads e are connected to a plug d detachably engaging a socket b rigidly secured to the side walls of the trough and connected by flexible leads c to the auxiliary control gear. The plug d and socket b may be engaged by a straight or bayonet slot movement.
Patent GB-1401594-A (GB)
Title: Magnetic disc storage systems
IPC: G11B21/16
Filed: 1973-03-30
Abstract: 1401594 Magnetic disc system DATA GENERAL CORP 30 March 1973 [3 April 1972] 15487/73 Heading G5R In a magnetic disc data storage system in which a number of transducer arm stations 15 are associated with a multiple disc pack, each station includes a number of arm assemblies 16 each associated with one side of a disc and comprising a pair of arms 22, 23 each carrying at their ends a plurality of transducer heads, one associated with each track of the disc surface and fixedly arranged such that the transducers at the end of one arm have an interlaced relationship with the transducers of the other arm. Each station has a control shaft 17 supporting the arm assemblies which each consist of a mounting plate 20 secured to the shaft, a pair of spacing members 24, 25 supporting the arms 22, 23 at the ends of which gimbal spring members 36, 37 support head pads 38, 39 carrying the heads 29. A further spring member 44 is connected between the plate 20 and a rigid cross member 45 which carries a cam riding button 46 and when the arm assembly is moved by rotation of shaft 17 to its non-operating position the button rides up a cam surface 47 (Fig. 2, not shown) so that the rigid cross membber ngages and lifts the arms to raise the heads from their transducing position in which they are supported by an air bearing. A flexible member 27 carries the leads 32 connecting the heads to connection member 30. The base of the shaft 17 is secured to a plate 61 which carries a solenoid 62 and a magnetic stop member 67. The plate is positioned above a disc member of magnetic material rotatable by a motor (not shown) so that when the arm assemblies have to be moved to their operating position the solenoid is energized and the plate 61 moves with the rotating disc, against the action of spring 75, until stop member 67 is engaged and held by a further solenoid 70. At this time the motor drive and the power supply to the solenoid are cut off. Should the power supply now fail solenoid 70 is de-energized and the plate is drawn by spring 75 to the full line position thereby lifting and rotating the arm assemblies to their non-operational positions.
Patent GB-1535808-A (GB)
Title: Spheroidal alumina particles
IPC: C01F7/02
Filed: 1976-04-15
Abstract: 1535808 Spheroidal alumina particles UOP Inc 15 April 1976 [16 April 1975] 15490/76 Heading C1A Spheroidal alumina particles are made by (a) forming a mixture below gelation temperature, of acidic alumina hydrosol and an ammonia precursor decomposable to NH 3  with increasing temperature (e.g. hexamethylene tetramine) the mixture comprising 6-10 wt. per cent Al and an Al/acid anion ratio of 1:1 to 1À5:1; (b) ageing the mixture at 2-25 C. for ¢-4 hours; (c) dispersing the aged mixture as droplets in a hot oil bath; (d) ageing the resulting hydrogel spheres at above ambient temperature to effect decomposition of residual ammonia precursor; and (e) washing, drying and calcining the aged spheres. The oil bath temperature is suitably 50-105 C. The subsequent ageing may be carried out in the or another oil bath, preferably under a pressure sufficient to maintain the H 2 O content liquid, e.g. 50-160 C. at 40-150 p.s.i.g. The product provides a void-free catalyst base.
Patent GB-706637-A (GB)
Title: Improvements in or relating to fluid pressure valves
Inventor: SCHOENHEIT WERNER ALBERT
IPC: F16K31/36
Filed: 1951-06-29
Abstract: 706,637. Fluid-actuated valves. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 16, 1952 [June 29, 1951], No. 15520/51. Class 135 A valve of the kind with an obturating member 35 opening against inlet pressure and presenting a larger area to outlet pressure than to inlet pressure so that at a certain ratio of outlet to inlet pressure less than unity the valve opens, has a piston 37 constituting part of the obturating member and subject through a restricted passage 40, to inlet pressure acting in the valveopening sense, the restriction limiting the rate at which the valve opens. Closure is effected by admission of pressure fluid to the space below the piston 37 and is not impeded by the restriction 40 as a soft washer around the stem 36 of the piston acts as a non-return valve.
Patent GB-1367733-A (GB)
Title: High speed turbines
IPC: A61C1/08
Filed: 1972-04-04
Abstract: 1367733 Rotor and bearing replacement pack for a miniature highspeed turbine DENTAL MFG ENG Ltd 6 March 1973 [4 April 1972] 15531/72 Heading B8C [Also in Division A5] A rotor and bearing replacement pack for a miniature high-speed turbine of the kind comprising a rotor having a stub-shaft extending on each side thereof journalled in respective bearings which carry resilient O-ring supporting and sealing members, comprises such a rotor with bearing members mounted thereon orientated correctly for insertion into the respective turbine housing 3, contained within a cylindrical sleeve 10 of plastics material, or metal, dimensioned to hold the rotor and its associated parts snugly, and to be engageable with the turbine housing to permit the rotor and bearings to be slid into the turbine housing as a unit, by a plunger 6 associated with the sleeve 10. In order to replace the rotor of a miniature turbine 3 forming the head of a dental handpiece 4, Fig. 1, a cap 2 of the turbine 3 is unscrewed, using a clamp 1, and a dental burr 5 in the head 4 is used to push the rotor and its outer bearing, not shown, out of the turbine 3. The tapered stem 6 of the plunger in the sleeve 10, Fig. 3, is then introduced into the turbine to jam into the inner bearing therein the latter then being extracted by pulling on the sleeve 7, Fig. 2. The cap 9 is unscrewed from the sleeve 10 which is then screwed on to the turbine 3 in place of the cap, Fig. 4, the stem of the plunger 6 then being pushed to transfer the rotor bearing assembly from the sleeve 10 smoothly into the emptied turbine 3. Finally, the sleeve 10 is unscrewed from the turbine head 3 and the cap 2 is replaced, and tightened, by the tool 1. In the case of handpieces incorporating ballbearing turbines the bearing at the burr mounting end is expelled along with the rotor and other bearing by pressure on the burr so that, in this case, the tapered stem of the plunger does not have to be used as an extruder tool.
Patent GB-1067595-A (GB)
Title: An improved intermittent driving mechanism
Inventor: PARKER MATTHEW
IPC: F16H27/10
Filed: 1965-04-12
Abstract: 1,067,595 Intermittent gearing. FORMMASTER Ltd. April 7, 1966 [April 12, 1965], No. 15532/65. Heading F2Q. In an intermittent drive mechanism for a paper-feed drive in a wrapping or printing machine, a fixed cam 35 acts on a follower 14, carried on a link 19 pivoted at 20 to a link 17 of equal length which is pivoted at 18 to an input arm 10 continuously rotatable about an axis O, to move a roller 13 on the link 19 coaxial with the follower 14 into and out of radial slots 12 in the periphery of a circular output member 11 to rotate the latter intermittently about the axis O, retaining means holding the output member 11 between periods of drive with one of its slots 12 aligned with the entry position of the roller 13. The lead-in portion 36 of the cam 35 is adjustable angularly about the axis O to vary the magnitude of each motion step of the member 11. As the follower 14 traverses the cam lead-in 36 it is momentarily retarded, causing the link 19 to pivot until the roller 13 is coaxial with the pivot 18 (Fig. 5, not shown), and is engaged in a slot 12 to drive the output member. While the follower 14 traverses the main part of the cam 35, a second cam 16 acts on a follower 15, connected by a link 22 to the link 17, to pivot the links 17, 19 about the pivot 18 until the pivot 20 is at a greater radial distance from the axis O than the pivot 18. At the lead-out portion 37 of the cam 35, the follower 14 is again momentarily retarded, and the roller 13 lifted out of its slot 12 to disengage the drive. Before the lead-in 36 is again reached, the cam 16 causes the link 17 to move so that its pivot 20 is at a smaller radial distance from the axis O than the pivot 18. The follower 15 may alternatively be carried on the link 17. The retaining means (Figs. 7, 8, not shown), comprises a lever (43) centrally pivoted at (44) to a frame and having at one end a roller (45) engageable with a sprocket wheel secured to the output member (11) and at the other end a roller (42) engageable by a cam (40) secured to the arm (10). As the follower 14 reaches the cam leadout 37, the cam (40) acts to bring the roller (45) positively into engagement with the sprocket wheel, engagement being maintained resiliently by an over-centre spring (49) until re-engagement of the drive roller 13 with a slot 12 of member 11 causes disengagement of the roller (45).
Patent GB-1390325-A (GB)
Title: Developer composition for diffusion-transfer photographic material
IPC: G03C8/06
Filed: 1973-03-30
Abstract: 1390325 Photographic diffusion transfer developer composition FUJI PHOTO FILM CO Ltd 30 March 1973 [31 March 1972] 15569/73 Heading G2C A photographic silver salt diffusion transfer developer composition for a graphic arts highcontrast diffusion transfer material comprises (i) at least one silver halide developing agent, e.g. a pyrazolidone and/or an aminophenol with a hydroquinone or catechol; (ii) at least one silver halide solvent, e.g. sodium thiosulphate; and (iii) at least one compound of the following formulae or a quaternary compound thereof:- wherein R<SP>1</SP> is H, alkyl, substituted alkyl, vinyl or allyl, R<SP>2</SP> and R<SP>4</SP> are each H, alkyl or substituted alkyl and R<SP>3</SP> is H or alkyl, said compound being soluble in the aqueous alkaline working-strength developer. The composition may be in the form of a concentrate in an organic solvent, a viscous developer or a powdered developer.
Patent GB-111691-A (GB)
Title: Improvements in and relating to Variable Wing Surfaces for Aeroplanes.
Inventor: HAMMOND EDWARD VICTOR
IPC: B64C3/54
Filed: 1917-04-26
Abstract: 111,691. Hammond, E. V. April 26, 1917. Steering and balancing; planes, construction and arrangement of. - Aeroplanes are provided with one or more collapsible planes adapted to be raised so as to close against the underside of the plane above, so as to vary the supporting-area. Fig. 1 shows a biplane with a collapsible plane c adapted to be raised up to the upper plane c' or to be lowered therefrom by means of screwed struts b. The angle of incidence of the collapsible plane may be increased simultaneously with the lowering movements by gearing adapted to rotate the rear screws b faster than the front ones. The incidence of the tail-plane may also be increased simultaneously with the lowering of the collapsible plane. Stopping way.-The incidence of the collapsible planes may be increased sufficiently to render them serviceable as air brakes.
Patent GB-552328-A (GB)
Title: Improvements in or relating to loud speakers and the like
IPC: H04R9/06
Filed: 1941-12-04
Abstract: 552,328. Loud speakers &c. RESLO (SOUND EQUIPMENT), Ltd., MURKHAM, L. W. Dec. 4, 1941, No. 15642. [Class 40 (iv)] In a loud-speaker or microphone of the moving coil type having an annular gap between the inner pole-piece 7 and an outer pole-piece 5, the diaphragm unit and the outer pole-piece are centred by fitting them in a common circular recess 4 which may be formed in the rear surface of the front 2 of the housing. The inner pole-piece 7 is centred by a non- magnetic bush 8 mounted on the back of the pole-piece 5, the pole-piece 7 fitting in the bush and having a shoulder 9 which limits its rearward movement. A single screw 10 secures the pole-pieces 5, 7, magnet 12 and plate 11 rigidly together. Screws 14 press the pole-piece 5 into the recess 4, thereby clamping the diaphragm unit in position. To reduce air damping, holes 15 are made in the outer pole-piece 5 and bush 8, and additional holes 16 (in the bush 8) and 17 (in the plate 11) permit, air to escape from the annular gap. The bush 8 is attached to the rear side of the pole-piece 5 by heat springing. In a modification, Fig. 3 (not shown), the outer casing has an opening communicating with the atmosphere provided with a shield so arranged that rain cannot enter the casing in any position.
Patent GB-570049-A (GB)
Title: Improvements in or relating to electrical resistances
IPC: H01C7/00
Filed: 1943-09-24
Abstract: 570,049. Discharge lamps. CARBORUNDUM CO. Sept. 24, 1943, No. 15678. Convention date, Sept. 24, 1942. [Class 39 (i)] [Also in Groups V and XXXVI] An electrical resistor comprising a resistive i core of electrical conducting material, a rigid relatively non-conducting layer surrounding the core, electrical connectors at the ends of the resistor and a vitrified glaze on the outside of said layer [see Group XXXVI] is placed in circuit with a starting electrode 21 of a mercury vapour lamp, having main electrodes 22, 23. The electrodes are mounted in an inner glass envelope 25 which is assembled by being placed inside the upper part 26 of an outer envelope, the leads and the starting resistance 20 being positioned at the lower end. A lower part 28 of the outer envelope containing the external leads 30, 31 is then joined on by means of flames 29. Finally, a metal cap (not shown) for connection to a supply socket, is cemented on. U.S.A. Specification 2,060,393 is referred to.
Patent GB-382577-A (GB)
Title: Improvements in or relating to garters and suspenders for personal wear
IPC: A41F11/16
Filed: 1932-06-02
Abstract: 382,577. Sock suspenders. HUPPERTSBERG, A., 30, Hagenauerstrasse, Elberfeld, Wuppertal, Germany. June 2, 1932, No. 15694. Convention date, March 4. [Class 141.] Relates to suspenders of the type comprising a strip of material 10, Fig. 1, provided at one end with a button-and-loop grip 15, and at the other with a hook 11, and consists in a construction in which the hook has a metal core 16, Fig. 2, completely sheathed by the fabric strip, which may be tubular in form. The attachment device 14 for the grip is also provided with a metal core 20, Fig. 4, sheathed in fabric. In a modification, the core may be sheathed in an envelope comprising metal sheathed by fabric.
Patent GB-434292-A (GB)
Title: Improvements in or relating to carbureters
IPC: F02M7/08
Filed: 1934-05-26
Abstract: 434,292. Spray carburetters. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Marvel Carburetter Co. ; 1910, St. John's Street, Flint, Michigan, U.S.A.) May 26, 1934, No. 15759. [Class 7 (iii)] Consists in a downdraught carburetter having a butterfly throttle valve with the fuel nozzle located in the air inlet side of the wing which moves downwardly on opening. The carburetter comprises a casing 12, a choke tube 17, an air choke 22 and a throttle 19, in the downwardly movable wing of which is formed the nozzle 35 which communicates with the fuel in the float chamber 15 through a duct 36 in the throttle spindle, a calibrated port 50, valve 59, and ducts 46, 45 m a member 40 which is secured to the throttle spindle to swing therewith. The member 40 forms a cylinder for a spring-loaded piston 44 of an accelerating pump, the piston being actuated, as the throttle is opened, by a cam member 51 forcing upwardly a stem 42 on the piston. During upward movement of the piston, a disc valve 58 closes ports 46, and a reduced part 59<1> of valve 59 serves to allow of the passage of an increased quantity of fuel. Instead of a two-diameter type of valve, a tapered form may be employed. For idling purposes, fuel is supplied to a controlled outlet 76, Fig. 4, from a well 15 through tube 64, orifice 66, and duct 68, and air is admitted through a duct 73 and orifice 72. In a modification, Fig. 5, the port 50 is retained and the fuel supply thereto is metered by an orifice 81 until the throttle is opened to such an extent that the cam 51 opens a seated valve 86. Air is admitted to the fuel stream through apertures 89, 88<1>, 88<11>, and a ball valve 89<1> prevents escape of fuel when the accelerating pump is in action. In a further modification, Fig. 6 (not shown), the accelerating pump is dispensed with and the fuel is controlled by a valve in the lower end of the swinging member by the cam 51, air being again admitted to the fuel. In a still further modification, Fig. 8 (not shown), the swinging member comprises two pipe branches, the free ends having calibrated inlets. One inlet is always submerged, the other being submerged as the throttle is opened. In a modification of the idling device, fuel is discharged through apertures in the throttle and its shaft, Fig. 7 (not shown).