baber/WOPTO huggingface dataset:
Patent GB-1359769-A (GB)
Title: Motion picture camera counterbalancing means
IPC: G03B17/56
Filed: 1972-05-01
Abstract: 1359769 Cinematography BACH AURICON Inc 1 May 1972 20118/72 Heading G2E A cine camera designed for portable operation has a spatial arrangement to counterbalance the weight of an elongated (e.g. zoom) lens assembly. This is achieved by means of a plate 21 carrying in counterbalancing relationship a lens mount 60 and an arm 65, supporting the supply 23 and takeup 24 reels; the plate 21 being located in an elongated body 10 providing a resilient mounting 68 for the opposite end of the arm 65. As shown the film path extends from supply reel 23 over rollers 30, 31, between the rollers 32, 33 and the front face of sprocket 25, over roller 35, through gate 27, over roller 37, through sound recording unit 29 having guide roller 41 and pressure roller 42, around the rear face of the sprocket 25 and over rollers 43, 44 to the takeup reel 24. A motor 47 has gear train 49, 50, 51, 52 to power the sprocket 25 and a belt 54 further powers spool 24. The plate 21 has resilient attachments 69, 70 to the casing 10, each comprising a screw 83 attached to a layer of rubber or other resilient material 82 overlaying the central part of a mounting plate 79. The lens mount 60 is located in plate 61 surrounded by a sealing ring 62, the plate 61 being screwed to the plate 21. The resilient mounting 68 includes a cup 74 and a resilient (e.g. rubber) cushion 77.
Patent GB-486264-A (GB)
Title: Improvements in the manufacture and production of butadiene
IPC: C07C1/24
Filed: 1937-07-21
Abstract: Butadiene is prepared by heating 1-3 butylene glycol in the liquid phase with dehydrating agents such as sulphonic acids, passing the vapours through a fractionating device, condensing the water and intermediate products, separating and discarding the aqueous layer of the condensate, and returning the layer of intermediate products to the fractionating device.  In an example, the butylene glycol is heated with naphthalene sulphonic acid containing sulphuric acid, and aniline.  Benzene sulphonic acid and toluene sulphonic acid may be used instead of naphthalene sulphonic acid, and then aniline may be omitted.  Specification 3873/12, [Class 2 (iii)], is referred to.
Patent GB-925916-A (GB)
Title: Improvements in methods of hydriding zirconium and zirconium alloys
IPC: C22C16/00
Filed: 1961-06-05
Abstract: <PICT:0925916/III/1> <PICT:0925916/III/2> Metallic zirconium and its alloys (containing at least 50% by weight of zirconium) are uniformly hydrided without cracking to a maximum hydrogen to zirconium ratio of 1,9: 1, by heating to at least 700 DEG C. under a vacuum (about 5 microns of mercury) and thereafter introducing hydrogen gradually until the hydride is converted to the gamma phase as shown in Fig. 1. Hydrogen is introduced in sufficiently small increments (about 0,5 cu ft/hr) and at a sufficiently slow rate that hydriding in a given phase is substantially complete before hydriding in the next phase of the system begins.  The pressure of the hydrogen builds up from zero to substantially one atmosphere.  The hydriding temperature is then progressively lowered (about 30 DEG C. at a time) while continuing the addition of hydrogen as above until the gamma phase has the desired hydrogen to zirconium ratio (see Fig. 2).  The reaction chamber is then evacuated and the hydride may be held at 500 DEG C. for two hours (annealing process) when it is then allowed to cool to ambient temperature during about 12 hours.  Specific examples include the reference to an alloy of 8% uranium and 92% zirconium in the form of bars, which was hydrided as above at 760 DEG C. and then at 730 DEG C., the resulting hydrogen to zirconium ratio being 1,8 : 1.ALSO:The following is an example of an alloy which may be hydrided (see Group III): Zr 92%, U 8%.
Patent GB-988303-A (GB)
Title: Electrostatic printing apparatus
IPC: G03G15/26
Filed: 1963-05-22
Abstract: 988,303. Electrophotographic processes. GRAFOSOL S.p.A. May 22, 1963 [April 11,1963], No. 20325/63. Heading G2H. An electrophotographic printing apparatus comprises an electrostatic charging device 37, a camera 6, exposure means, not shown, storage means 25 for electrostatically charged powder, and a conveyer for conveying a copy sheet past these members, such that the sheet is charged, exposed, and developed, the conveyer being electrically controlled by a circuit which effects sequential movement and arrest of the sheet. As shown, the conveyer is a pair of chains passing around sprockets 13,15,17,26,and 28,the sprockets 17 being driven by a motor 23, controlled by the control circuit, Fig. 7, not shown. The chains have clamps 38 Fig. 2 (not shown) which grip the copy sheet. The clamps may have projections 79<SP>1</SP> (Fig. 6) not shown) which engage holes 37a Fig. 2 (not shown) in the copy sheet K and an aperture 80 Fig 6 (not shown) in arm 78. The clamps are opened to release the sheet K by a foot lever 100. A cam 32, Fig. 1, secured to one of the chains 14 co-operates with micro-switches 33, 34, and 35 to control their movement. Infra-red lamps 180 control the humidity in chamber 10 to prevent agglomeration of powder in container 25 due to moisture.
Patent GB-808082-A (GB)
Title: Apparatus for conveying sand or mixture of sand and gravel to a spray-gun
IPC: E04F21/12
Filed: 1956-07-02
Abstract: 808,082. Pneumatic conveyers. STREIFF, S. July 2, 1956 [July 1, 1955], No. 20381/56. Class 78 (1). Apparatus for conveying material to a spraying device comprises a hopper 1, a piston 4 and cylinder 18 disposed below the hopper for pushing the material into a chamber 19 against the resistance of a counter-pressure element 20, and a blower connected to the chamber to provide an airstream for conveying away the material. A vibrator 7 mounted on the hopper ensures a regular fall of material in front of the piston. The piston is screwed on to a crosshead 17 which is connected by a connecting-rod 16 to a crank-pin 15. The pin is fixed to a block 13 which is adjustably mounted in a driven flywheel 12. The cylinder is composed of telescopic members 181, 18<SP>2</SP> and 183. The element 20 may be hemispherical or conical and is loaded by a spring 21 or by pneumaticallyoperated means.
Patent GB-187056-A (GB)
Title: Improved attachment means for application to objects composed of wood or like yielding material
IPC: E04H3/30
Filed: 1921-07-30
Abstract: 187,056. Kay, W. W. July 30, 1921. Joints and connections; fixing furniture to floors.-An attachment means to be embedded in wood or like yielding material, comprises two or more sockets a united by a single integral flange b. The frame e of a chair may be secured to the flooring m by bolts k, passing through the sockets a and engaging nuts l, or, as shown in Fig. 4, the sockets a may be engaged by nuts n to secure the attachment means to the floor, bolts d, engaging internal threads in the sockets, holding the frame e in place.
Patent GB-1532146-A (GB)
Title: Semiconductor junction
IPC: H01L29/36
Filed: 1977-05-16
Abstract: 1532146 Semiconductor devices CALIFORNIA LINEAR CIRCUITS Inc 16 May 1977 20469/77 Heading H1K A PN junction, e.g. for a clamping diode, having improved forward and reverse recovery times achieved without degrading the steady state reverse current characteristics is formed between a highly doped P<SP>+</SP> (or N<SP>+</SP>) region 32 and a lightly doped N(P) region 30 by the provision between regions 30, 32 of a thin P(N) layer 34 having a doping level intermediate between those of the regions 30 and 32. The thickness of the layer 34 (preferably 50-200Š) is of the same order as that of the depletion region under forward bias. The layer 34 and the region 32 are preferably formed by ion implantation.
Patent GB-314998-A (GB)
Title: Improvements in or relating to the mounting of sound producing oscillators or sound receiving apparatus on ships
IPC: G10K11/00
Filed: 1929-07-03
Abstract: 314,998. Submarine Signal Co., (Assignees of Williams, R. L.). July 7, 1928, [Convention date]. Subaqueous audible signals.-Sound producers and receivers of the single-phase oscillator type are mounted upon vessels forward or immediately to the rear of the stem in a zone free from air bubbles formed by the movement of the vessel through the water. Two subaqueous sound producers 3, 4 may be located just behind the stem 2 in an aperture so that 'both faces 7, 8 of the sound oscillators are exposed. Fig. 3 shows a sound oscillator 3 mounted on the lower part of the stem by means of a bracket 14. In another modification, the oscillator is mounted between contour plates on the vessel, its diaphragm surface being flush with the plates. A number of oscillators may be mounted on the vessel one above the other.
Patent GB-474098-A (GB)
Title: Improvements in mauls with a striking face in rawhide fibre or other material
IPC: B25D1/00
Filed: 1936-07-24
Abstract: 474,098. Mallets. STEPHENS, I. T. July 24, 1936, No. 20498. [Class 61 (ii)] A maul comprises a spindle A formed with an abutment E and bevelled or rounded off at either side thereof and screw threaded at the free end to receive a nut D for tightening the raw hide &c. discs B between washers C, C<1>.
Patent GB-825042-A (GB)
Title: Improvements in or relating to steels
Inventor: HARRIS GEOFFREY THOMAS
IPC: C22C38/38
Filed: 1954-07-14
Abstract: Normally non-hardenable chromium steels which contain at least 60% of ferrite at 1000-1300 DEG C. and contain at least one element of the group consisting of 0-6% W, 0-6% Mo and 0-2% V in a total amount at least 1.5% for the purpose of solution treatment, are treated to improve their creep strength by heating in the range 1000-1300 DEG C., quenching and warm working in the range 20-700 DEG C. to reduce them in thickness by 1-10%.  The steels may also contain at least one element from the group 0-2% Nb and Ta and 0-2% Ti, in total amount of at least 0.25% for producing precipitative hardening, the steel being aged in the range 500-700 DEG C. either after quenching and before warm working or after the warm working step.  Steels suitable for treatment according to the invention comprise .C.0.05-0.3%. .Mn.0.05-2.0%. .Si.0.05-1.0%. .Ni.0-4.0%. .Cr.9.0-20.0%. .W.0-3.0%.at least 1.5% total .Mo.0-3.0%.at least 1.5% total .V.0-2.0%.at least 1.5% total .Nb.and Ta 0-2.0%.at least 0.25% total .Ti.0-2.0%.at least 0.25% total .N.0.001-0.2%. .B.0.001-0.05%. together with deoxidants such as A1, Ce, Mg up to 0.5% total
Patent GB-1306525-A (GB)
Title: Method of purification of catholytes
IPC: C25B3/29
Filed: 1970-04-29
Abstract: 1306525 Purification of catholytes ASAHI KASEI KOGYO KK 29 April 1970 [1 May 1969] 20706/70 Heading C2C A method for purifying a catholyte which comprises an aqueous phase and an oil phase and is used in the electrolytic hydrodimerization of acrylonitrile to give adiponitrile, is effected by first removing acrylonitrile contained in the catholyte by distillation, adjusting the pH of the aqueous phase in the remaining emulsified liquor to 3À0 or below in order to force a major portion of the carboxylates contained in the aqueous phase into the oil phase and removing the carboxylate-containing oil phase. The pH adjustment is suitably carried out by adding sulphuric, hydrochloric, nitric, alkylsulphuric or phosphoric acid. After removal of the carboxylates the oil phase may be recycled to the catholyte.
Patent GB-603305-A (GB)
Title: A device having centrifugal mechanism
IPC: G05D13/10
Filed: 1945-08-13
Abstract: 603,305. Speed governors. DERUNGS, E. A. Aug. 13, 1945, Nos. 27049 and 20750. Convention dates, July 21, 1944 and July 3, 1945. [Class 57] A rotatable guide on which centrifugal masses ride is shaped as an ovoid and its axis coincides with the axis of revolution of the masses each of which has a roller adapted to roll and slide on the inner surface of the ovoid and is carried by a lever pivoted at the axis of revolution, the guide and the pivotal support of the lever being arranged to allow between them angular displacement in the direction of rotation, e.g. by driving the ovoid only or the masses only. An ovoid guide 59 is rotatably mounted on a driving shaft 50 secured to a control shaft 73 by a key 71 which extends between two polished discs 72 ; these discs form part of a housing 70 from a collar 69 on which interlocking pivoted levers 68 extend and carry centrifugal masses 66 having rollers 67 running on the ovoid guide 59. Increased speed raises the masses 66 and the housing 70 against the action of a spring 77.
Patent GB-1057167-A (GB)
Title: Process for obtaining refined zinc by distillation
IPC: C22B19/30
Filed: 1964-05-20
Abstract: Zinc oxide, or ores containing it and optionally lead, is reduced using a carbonaceous reducing agent and the resulting zinc vapour is dissolved in molten zinc or lead.  The latent heat of vapourization of the zinc, with or without the heat of solution of zinc in molten lead, is then used to distil the zinc in a refining evaporator under reduced pressure.  When the primary condensation is in liquid zinc, sufficient zinc is removed from the primary condenser so that the solubility limit of the metallic impurities in liquid zinc is not exceeded.  In the case of condensing in lead, the lead is cycled between the secondary evapourator and the primary condenser and the "bleed" is taken from the secondary evapourator.
Patent GB-597317-A (GB)
Title: An improved method of vapourising or gasifying liquids
IPC: F02B51/04
Filed: 1945-08-14
Abstract: 597,317. Heating liquids by electricity. KINNEEN, W. P. Aug. 14, 1945, No. 20880. [Class 39 (iii)] A method of vaporizing or gasifying a liquid capable of conducting electricity comprises forcing a jet of the liquid through a tubular nozzle 12 on to a conductive surface or electrode 17 disposed coaxially with the nozzle and passing a current of sufficient intensity through the jet to vaporize or gasify it. The nozzle is conveniently of metal. The liquid is led under pressure via the pipe 13 and non-return valve 14 to the nozzle in a gasifying head 10, which is earthed or connected to the earth potential of the apparatus, and a suitable potential is applied to the electrode, e.g. by a battery 15. Air or other gas may be injected into the head 10 to assist the action. Two or more jets or groups of jets of various liquids may be employed, having different applied potentials, and a tapped battery or three-phase supply system may be used.
Patent GB-1526713-A (GB)
Title: Shaped bonded boride catalysts
IPC: B01J21/00
Filed: 1977-05-19
Abstract: 1526713 Liquid phase epoxidation TEXACO DEVELOPMENT CORP 19 May 1977 21040/77 Heading C2C [Also in Division B1] A method for the liquid phase epoxidation of an olefin having 2-60 carbon atoms with an organic hydroperoxide comprises intimately contacting the olefin in a tubular reaction zone with hydroperoxide at 90-130‹ C. and a pressure sufficient to maintain product and reactants in the liquid phase in the presence of a shaped catalyst comprising 80-95 wt. per cent of a binary or tenary boride compound of an element of Groups IIa, IIIa, IVa, Va, VIa, VIIa, VIII, IIIb, IVb or Vb intimately bonded by 5-20 wt. per cent of lightly oxidized Al, Zn or Mg powder, with an oxide coating 5-10 vol. per cent of powder. The epoxidation of 1-octene is exemplified.
Patent GB-897704-A (GB)
Title: Improvements in web slitting and rewind machines
IPC: B65H35/02
Filed: 1959-06-19
Abstract: 897,704. Winding webs. JAGENBERGWERKE A.G. June 19, 1959 [June 27, 1958], No. 21134/59. Class 100(1) The tightness of a roll of web being wound on a shaft 13 is regulated by varying the angle of contact of the web with a driven support roller 7. The angle of contact is varied by a roller 4 carried by lever 15 pivoted about a shaft 16 carrying the roller 7. Knives 5, axially adjustable on a support 6, carried by the levers 15, co-operate with the roller 4 to effect longitudinal webslitting. The shaft of roller 4 is connected, by a rod 19, to the shaft of a roller 3 mounted in levers 18 also carrying a roller 2. The levers 18 may be rocked, to vary the angle of contact of the web with roller 7, by a lever 21 actuated by a water-driven shaft 23.
Patent GB-910798-A (GB)
Title: Improvements in or relating to valve assemblies for use with gas-liquid contacting plates
IPC: B01D3/16
Filed: 1960-06-16
Abstract: 910,798. Valves. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. June 16, 1960 [June 18, 1959], No. 21198/60. Class 135. [Also in Group XXII] A gas-liquid contacting plate 1, Fig. 2, used e.g. in the rectification of petroleum products, is formed with a number of holes 2 with each of which co-operates a flat valve-closure member 3 having a guide and stop assembly comprised of a ring 4 welded to three strips 5, Fig. 1, attached to the plate 1; the strips guide the valve plate 2 and the ring 4 serves to limit the opening movement of the latter. In another form the guide and stop assembly is formed from three right-angled pieces 9, Fig. 10, the central portion of the horizontal upper limb being curved 8, Fig. 3; the pieces are spot-welded together so that the curved portions form the stop ring and the vertical limbs the valve guide. The outer limbs may be shaped to provide a triangular stop member. In a further form, fabricated from six rightangled members, the stop ring is hexagonal.
Patent GB-1424877-A (GB)
Title: Polymer compositions and their use in drilling muds
IPC: C09K8/04
Filed: 1973-05-04
Abstract: 1424877 Aqueous drilling muds MONSANTO CO 4 May 1973 [5 May 1972 (2)] 21276/73 Heading C3P [Also in Division E1] An aqueous drilling mud comprising water, clay, and a mixture of (A) from 95 to 20% by weight of the mixture of at least one carboxylic acid or carboxylic acid anhydride polymer, and (B) from 5 to 80% by weight of the mixture of at least one water-soluble salt of lead or a metal of Groups Ib, IIb, VIb, VIIb and VIII of Periodic Table, in which the polymer has a carboxylic acid or carboxylic acid anhydride content of from 20 to 100 mol. per cent and a solubility in water at a pH of less than 7 of at least 1% by weight at 25‹ C, and in which the solubility of the mixture in water at a pH of less than 7 is at least 1% by weight at 25‹ C. In the examples the muds comprise poly(vinyl acetate-maleic anhydride), polyacrylamide, zinc acetate, bentonite, manganese formate, nickel acetate, chromium acetate, cupric acetate, cobaltous acetate, lead acetate, poly(ethylenemaleic anhydride), soda ash, calcium hydroxide, poly(vinyl methyl ether-maleic anhydride) and polyacrylic acid.
Patent GB-260381-A (GB)
Title: Improvements in laundry collar finishing machines
IPC: D06F71/22
Filed: 1925-08-28
Abstract: 260,381. Chant, J. Aug. 28, 1925. No Patent granted (Sealing fee not paid). Ironing - machines specially constructed for treating collars; ironing- machines with damping arrangements. -A machine for damping and ironing the top edges of single collars and for subsequently curling the collars comprises a guideway c leading the collars, top edge down, to a fabric-covered damping-wheel a from which they pass by a second guideway d to a grooved ironing roller e. A pivoted lever (not shown) in the form of a channelled guide maintains the collars in contact with the damping and ironing rollers. The collars are subsequently led by a guideway j to shaping rollers h', h<2>, h<3> as described in Specification 223,620. The apparatus may be combined with the double collar-finishing machine described in that Specification.
Patent GB-824670-A (GB)
Title: Speed indicator for airplanes
Inventor: DARBUJAN JIRI
IPC: G01P5/16
Filed: 1956-07-12
Abstract: 824,670. Air-speed indicators. VYZKUMNY A ZKUSEBNI LETECKY USTAV. July 12, 1956, No. 21588/56. Class 69 (1). An aircraft air-speed indicator includes transmission mechanism for converting indicated air speed derived from a pitot tube to true air speed, by effectively multiplying it by the air density as obtained from measurements of air pressure and temperature. As shown, the differential pressure from the pitot tube acts on a pressure-sensitive bellows 1 coupled via a shaft 3 and toothed segment 17 and pinion 18 to a pointer 15 showing " indicated air speed." Shaft 3 is also coupled to a shaft 5, toothed sector 19, pinion 20 and pointer 16, via a link 4 pivoted to an arm 6 of fixed length on the shaft 3 and rotatable about this pivot against a spring 9 to vary the effective distance of pivot 9a (mounted on spring 9) from the axis of shaft 5, and hence the transmission ratio between shafts 3 and 5. The rotation of the link 4 is effected through members 8 and 7 by the action of an evacuated vessel 13 responsive to the air pressure and a capsule 14 connected to an air thermometer 14a constructed and coupled together so that the movement of link 11 is proportional to the change in logarithm of the air density; the result is stated to be that the effective arm at 9a is substantially proportional to air density within the desired density range so that pointer 16 indicates true air speed.
Patent GB-642675-A (GB)
Title: Grinding and polishing apparatus
IPC: B24B7/13
Filed: 1947-08-07
Abstract: 642,675. Grinding and polishing. HAMILTON, A. E. Aug. 7, 1947, No. 21595. Convention date, March 7, 1941. [Class 60] In apparatus for surfacing material, such as large metal sheets or steel strip produced on continuous mills, wherein the material is fed past the surfacing element, the latter is given a reciprocation and a superimposed vibration both transverse to the travel of the material, and is also given a further reciprocation transverse to the travel of the material, the amplitude of this further reciprocation being adjustable in accordance with the difference in width of the surfacing element and of the material. The surfacing element may comprise a block or blocks or a roll or rolls covered with sandpaper, emery or felt. Strip material 14 from an uncoiler passes over rollers 27, 28 to a coiler; driven rolls 30 are provided to assist the feed of strip material and to effect the feed of sheet material. Adjustable rollers 33 engage the edges of the work to prevent lateral shifting thereof. The opposite faces of the work are acted on by rolls 20, 21 carried by arms 16, 17 pivotally mounted on a bracket 15 detachably secured to a slide 12 movable transversely in a frame 11 which carries means for imparting to the slide 12 a reciprocation with a superimposed vibration. The machine so far described is similar to that described in Specification 642,674. The frame 11 is mounted by balls 42 on transverse ways 43 on the machine frame and is reciprocated by a connecting rod secured to the frame and to a crank pin adjustably mounted on a worm gear 48 carried by a stub shaft 47 and rotated by a worm 71 driven by a motor through worm reduction gear.