baber/WOPTO huggingface dataset:
Patent GB-1532641-A (GB)
Title: Alloy steel powders
IPC: B21H5/00
Filed: 1976-04-27
Abstract: 1532641 Alloy steel powder BRITISH STEEL CORP 27 April 1976 [28 April 1975] 17622/75 Heading C7A A finely divided alloy steel powder consists of The powder is produced by water atomization of a steel melt, followed by annealing in hydrogen or cracked ammonia enriched by CO or a hydrocarbon gas at 700 - 900‹C and subsequently sintering at 900-1300‹C typically 1150‹C in a similar atmosphere with a dewpoint of -10‹C max to reduce the oxygen content to below 250 p.p.m. Graphite additions may be made after annealing to compensate for Carbon losses during sintering. The powder may be compacted into the required shape i.e. automotive shafts, gears, bearings etc., by isostatic pressing or die compaction, and densified to 99% + of theoretical density by hot pressing, rolling, forging or extruding, and subsequently heat treated at 800-860‹C, quenching and tempering to give Hv of 800 minimum. Alternatively, sintering may be carried out at 1250‹C under reduced pressure conditions, either as a continuous process or in a batch furnace.
Patent GB-371210-A (GB)
Title: Improvements in or relating to supports for vehicle destination boards and the like
IPC: G09F1/12
Filed: 1931-06-20
Abstract: 371,210. Signs. MORGAN, W. L., 5, Balmoral Mansions, St. Andrew's Park, and KINGSTON, E. G., Bristol Tramways & Carriage Co., Clare Street House, both in Bristol. June 20, 1931, No. 17910. [Class 3 (ii).] A vehicle destination board &c. 10 is held between a fixed channel 11 and a channel 14 pivoted at 15. Leaf springs 13, 16 extending from the channels prevent rattle. The spring 16 in addition acts as a lever to bring the channel 14 automatically into locking position when the board 10 is pressed into place. The board is released by lateral pressure on a projection 17.
Patent GB-302642-A (GB)
Title: Improvements in or relating to the thermal treatment of non-cementable metals and alloys
IPC: C21D1/46
Filed: 1928-06-20
Abstract: 302,642. Chemische Fabrik Weissenstein Ges. Dec. 19, 1927, [Convention date]. Annealing and modifying physical characters of metals.-In a process for heat-treating non- cementable metals and alloys such as copper, brass, &c., the metals are heated in fused salt baths of a thin consistency which contain oxidizable substances such as cyanides or finely-divided carbon in small amounts ranging up to 15 per cent, such substances preventing the formation of scale or reducing any scale on the metals &c. The metals &c. may be preheated before immersion in the salt bath in an atmosphere of oxygenfree gases or gases poor in oxygen such as waste furnace gases.
Patent GB-945043-A (GB)
Title: Thread rolling machines
IPC: B21H9/02
Filed: 1961-05-17
Abstract: 945,043. Thread rolling. NATIONAL MACHINERY CO. May 17, 1961 [Sept. 26, 1960], No. 18024/61. Heading B3M. A thread-rolling machine comprises a frame 31, a fixed die 90, and a reciprocating die 70 mounted on the frame, the dies denning a space into which blanks are fed from declining feed tracks 112 and 113, the tracks being parallel to the space as they approach the space and then being shaped towards it, and an injector 130 being mounted to inject a blank into the die space and retract over a distance approximately equal to a blank diameter. The reciprocating die 70 is mounted on a slide 50, Fig. 2, which is driven through a link 45, a lever 40, and a connecting rod 38 from a crank-shaft 30, the geometry of the system giving a dwell period for the feed operation. Also driven from the crank-shaft 30 is a pusher 180, Fig. 12, which advances and positions the blanks, the drive being by means of a cam 190, a lever 192, a rod 200, and a lever 210. The injector 130 is similarly driven by a cam 135 and lever 137 through further levers to a lever 171 pivoted at 169. The blanks are gravity fed along guide 112 and 113, Fig. 12, an upper guide 114 also being provided. Specification 895,155 is referred to.
Patent GB-546143-A (GB)
Title: Improvements in and relating to a method of and means for weaving on looms
IPC: D03D45/20
Filed: 1940-12-24
Abstract: 546,143. Looms with automatic weft replenishment. MASCHINENFABRIK RUTI VORM. C. HONEGGER AKT.-GES. Dec. 24, 1940, Nos. 18111, 18112 and 18113. Convention dates, Jan. 5, April 5, and Oct. 11. [Class 142 (iii)] Yarn from a large supply 1 is wound into a series of small cops 2 and these cops are led seriatim into the shuttles 10 and are picked-into-the warps. The cops 2 are guided into reservoirs 32, each having means 26 for pushing the lowest cop into the shuttle and with detector means 36 for touching the top cop, so that in the absence of the top cop a switch 38 is actuated to begin winding of the cops 2. A weft-feeler 40 is provided for engaging the yarn of the cop within the shuttle so that when the cop has nearly run out a shaft 39 is rotated so that a ratchet 46 is brought into engagement with a camoperated lever 50. Operation of the ratchet 46 serves to rotate a second shaft 56 carrying an arm 88 which brings a forked rod 90 into engagement with a reciprocating member 92, and the rod 90 and a lever 94 are actuated to operate the copinserting means 26. A second arm 58 on the shaft 56 operates a lever 62 supporting a disc 64 and band 66 with projecting pins 70, so that when the end of the lever 62 engages a member 74, the member 74 grasps the weft remaining in the shuttle and brings it into reach of one of the pins 70, which on rotation. of the disc 64, draws the weft end from the shuttle. A third arm 76 on the shaft 56 serves to actuate an arm 82 to lift a folding cover of the shuttle, and at the same time by means of an arm 84 to cause an air pump 86 to blow the weft waste from the shuttle. The shuttle 10 has a hinged cover 19, lifted automatically by the arm 82 for insertion of a new cop, the cover being normally held closed by springs 23. To facilitate insertion of the cop, the cop-receiving recess 15 extends outwardly in funnel shape. A weft brake 16 formed by coatings of fabric may be provided, and a weft-guiding pin on the cover 19 may be arranged to fit in a hole 25 in the body of the shuttle.
Patent GB-747072-A (GB)
Title: Vertical lantern for tubular electric discharge lamps
IPC: F01D1/02
Filed: 1954-06-21
Abstract: 747,072. Tubular lamp lanterns for road, &c. lightings. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. June 21, 1954 [June 23, 1953; July 27, 1953], No. 18121/54. Classes 75(2) and 75(4). A vertical lantern for an axially parallel tubular discharge lamp or lamps 15 comprises a diffusion wall e.g. of opalescent "Perspex" (Registered Trade Mark) formed of a series of coaxial frustoconical parts 17 interconnected by oppositely directed coaxial frusto-conical parts 18 all at the same mean distance from the axis, the inclination of the sides of the parts 17 to the axis being such as to deflect the maximum light distribution of the lamp or lamps from the horizontal on to the surface such as the road surface to be illuminated. The tubular parts may be polygonal in transverse section and the interconnecting parts 18 may be opaque and extended internally as at 24, Fig. 4, and the interior surface of the interconnecting parts 18 may be used as reflectors. The inclination of the parts 17 to the axis may increase progressively upwards or downwards. The lantern is secured to a base 11 and is provided with a cap 12. In Fig. 4, the parts 20, 23 are connected by fluid tight joints 21, 22. The lantern may be formed in one piece by mouldings or castings.
Patent GB-1202008-A (GB)
Title: Process for the recovery of ammonium sulphate from an aqueous ammonium sulphate solution containing methionine
IPC: C01C1/24
Filed: 1969-04-09
Abstract: 1,202,008. Separation of Ammonium sulphate and methionine. STAMICARBON N.V. 9 April, 1969 [10 April, 1968], No. 18246/69. Heading C2C. [Also in Division Cl] A methionine-containing solution, prepared by hydrolysing methionine nitrile with sulphuric acid and then neutralising the mixture with ammonia to form a solution of ammonium sulphate and methionine, is crystallized at a pH between 0À2 and 6.0 to separate ammonium sulphate having a methionine content of less than 1% by weight.
Patent GB-241994-A (GB)
Title: Improvements in electric motors
IPC: H02P4/00
Filed: 1924-08-01
Abstract: 241,994. Fairweather, W. C., (Underwood Typewriter Co.). Aug. 1, 1924. Drawings to Specification. Motors, controlling; exciting; field magnets; commutating-poles; alternating-current commutator machines.-A motor convertible for use with continuous-current or with alternating- current of different voltages and frequencies, comprises a number of field coils and auxiliary coils on a core, changeable from parallel to series arrangement to compensate for difference in frequency, and certain of the auxiliary coils are arranged to be cut in or out to vary the speed. The auxiliary coils are connectible to work either in conjunction with or in opposition to the field coils when used with continuous and with alternating-current respectively, and are arranged in series with the armature. All the coils are wound separately and are threaded on the quadrants of the core, and the ends of each coil are brought out to a terminal board, where the coils, the armature, and resistances in series with the armature, may be connected in various ways to adapt the motor by fixing removable and interchangeable contact panels to the terminal board. The constructional details of the motor described are the same as those described in Specification 237,188.
Patent GB-516137-A (GB)
Title: Improvements in and relating to the manufacture of electrode systems of unsymmetrical conductivity
IPC: H01L21/08
Filed: 1938-06-21
Abstract: 516,137. Coating metals ; asymmetricallyconducting resistances ; light-sensitive cells. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 21, 1938, No. 18434. Convention date, June 24, 1937. [Class 82 (ii)] [Also in Groups XVI, XXXVI and XL] In the manufacture of an electrode system having unsymmetrical conductivity, a continuous pulverulent layer is applied to a metal carrier by first applying to the carrier a thin layer of a metal, having a lower melting point than the carrier metal and the pulverulent material, then applying the pulverulent material, and heating the aggregate until only the metal intermediate layer is caused to melt. The semi-conductive layer of the electrode system may be formed by, or applied as a coating to, the pulverulent layer, which may comprise a metal powder or carbon. For rectifiers, high frequency detectors or photoelectric cells with selenium electrodes, an aluminium carrier may be roughened, as by hydrochloric acid, a cadmium film applied thereto, dry carbon or a carbon suspension applied to the cadmium and the whole heated to about 500‹C., the selenium layer being then applied to the carbon in a liquid state and spread to a thickness of about .01 mm. ; after annealing of the selenium, a blocking layer, such as polystyrene, is applied, to which an electrode of good conductivity, such as Woods' metal, is then applied. Substances may be added to the selenium to reduce its specific resistance. The Specification as open to inspection under Sect. 91 describes also the application of the process to the construction of (1) transmitting valves with anodes of tungsten, molybdenum &c., coated with nickel on which zirconium oxide is applied by spraying, (2) cathode ray tubes in which a fluorescent powder formed of zinc sulphide or silicate &c., is applied to a silver layer on a base of tungsten or molybdenum, (3) thermionic valves and other electrodes in which an iron anode is coated with copper to which black molybdenum or tungsten powder is applied, and (4) anodes for gas discharge tubes in which carbon is applied to a nickel layer on a core of molybdenum &c. This subject-matter does not appear in the Specification as accepted.
Patent GB-378602-A (GB)
Title: Improvements relating to transmission mechanism for the rolls of sugar cane mills
IPC: C13B10/06
Filed: 1931-06-26
Abstract: 378,602. Sugar-cane mills. STEWART & CO., Ltd., D., London Road Iron Works, Glasgow.-(Murray, P.; 378, Smith Street, Durban, Armstrong, H. and Pearce, A.; Empangeni, Zululand, both in South Africa). June 26, 1931, No. 18489. [Class 59.] The loose shaft B which transmits the drive from shaft G to roller shaft M through couplings C has the ends S of approximately square cross section with four working faces lying on convex cylindrical surfaces whose generatrices are transverse to the axis of the shaft. The dimensions of the end portions are such that at their thickest section they fit the apertures in the couplings. The end faces of the bar may be part spherical in shape.
Patent GB-1422730-A (GB)
Title: Moulding plastics materials
IPC: B29C41/22
Filed: 1973-04-17
Abstract: 1422730 Moulding polyvinyl chloride articles ITT INDUSTRIES Inc 17 April 1973 [22 April 1972] 18507/73 Heading B5A To form a PVC article, e.g. a cushion cover, a thixotropic plastigel is sprayed on to a heated (room temperature-100 C.) mould surface 12, the viscosity of the plastigel at the moment of spraying being 20,000-50,000 cps., and being such that it will reach at least 140,000 cps. after 48 hrs standing. A cloth strip 15 to be incorporated into the cover is held in the mould by a member which leaves the edges 15<SP>1</SP>, 15<SP>11</SP> uncovered, and the plastigel is sprayed into the mould to cover the mould surface and the free edges 15<SP>1</SP>, 15<SP>11</SP> to a depth of 1-1À5 mm. The resulting layer is gelled and baked at 300-320 C. before removal from the mould. Also described is a masking technique to provide a cover having areas of differently coloured PVC. A textile or fibrous reinforcement may be incorporated into the PVC layer, e.g. by laying a preformed sheet or sprinking fibres. The cover may be filled with a foamable polyurethane while it is still in the mould 10 to provide a complete cushion.
Patent GB-562868-A (GB)
Title: Improvements in or relating to pressure gauges
IPC: G01L27/00
Filed: 1942-12-31
Abstract: 562,868. Pressure gauges. BARNET INSTRUMENTS, Ltd., and WILLIAMS, W. H. C. Dec. 31, 1942, No. 18616. [Classes 106 (ii) and 106 (iv)] A pressure gauge of the type in which the pressure - responsive element is connected to the pointer by a quadrant engaging a pinion on the pointer spindle 11, the pointer and the quadrant pivot 12 being carried by a mounting movable on a fixed support to adjust the pointer, is characterised in that the mounting 1 which comprises two spaced plates is pivoted at a single point 3 to the support 2 and one of the plates has a slot 4 engaged by a pin 5 attached eccentrically to a screw 6 rotatable in the support 2. The screw 6 can be adjusted through an aperture in the gauge back-plate (not shown). Accidental rotation of the screw 6 is prevented by a spring washer. A Bourden tube is fixed to the support 2, a passage being formed in the support to a nipple 111 to which the pressure pipe is connected.
Patent GB-1272098-A (GB)
Title: Process and apparatus for the continuous production of polyesters
IPC: C08G63/78
Filed: 1969-04-11
Abstract: 1,272,098. Polymerisation apparatus; film evaporators. SNIA VISCOSA SOC., NAZIONALE INDUSTRIA APPLICAZIONI VISCOSA S.p.A. 11 April, 1969 [11 April, 1968], No. 18623/69. Headings B1B and B1X. [Also in Division C3] Polycondensation of an alkene glycol and dicarboxylic acid is effected in a plurality of precondensation reaction vessels as shown in Fig. 3 and one or more reactors in which polycondensation is carried out. In each precondensation vessel the reaction proceeds in a film of the reaction liquid pulling down the heated wall of the vessel. Each vessel comprises an upper chamber 10 at least part of the interior surface of which is vertical and a lower chamber 11. The walls are metallic and are heated via serpentine 14 and jacket 17. Reaction liquid enters via nozzle 27 and is projected upon a rotating perforated basket 24 which throws the liquid onto the walls of the vessel whereupon it trickles down in a thin film. The liquid is then collected in chamber 11 and discharged via outlet 32, whereupon the outlet flow is split into a major portion which is recycled to the vessel via line 40 and nozzle 25 and a minor portion U which is led off to the next reaction vessel. Gaseous products of the reaction are withdrawn via line 43. The preferred apparatus comprises a first mixing and precondensation vessel followed by a series of three precondensation reaction vessels of the type shown in Fig. 3 (Fig. 1 not shown) these being followed by a further polycondensation reactor and then a finishing reactor of the screw conveyor type (Fig. 2 not shown).
Patent GB-571893-A (GB)
Title: Improved machine for delivering powdered materials
IPC: G01F13/00
Filed: 1943-11-10
Abstract: 571,893. Hoppars. SIMON, Ltd., H., PARKER, T. S., and WATTS, G. Nov. 10, 1943, No. 18691. [Class 78 (i)] A machine for delivering powdered materials at a regular rate comprises-a rotatable shallow hollow cylinder which is disposed slightly above a fixed disc and carries a knife blade for ejecting the material through a slot extending upwards from its lower edge. The cylinder o is carried by arms 4, from a bevel gear 3 and is driven from a power shaft x through a bevel gear 2. A knife blade r, Fig. 2, is pivoted on the flange o<1> of the cylinder and extends into it through the slot t. A pin-and-slot mechanism s is provided for securing the blade in any position. The fixed disc n, carries a cone q to which are attached division pieces p. The blade is cleaned by a scraper 5 which is pivoted at 6 to the cone. This scraper is raised by the blade during its passage beneath it and is returned to its initial position by the engagement of a pin 7 carried by the cylinder with an arm 8. The spindle k is driven by bevel gears v, wand carries a scraping rod j disposed within the feeding tube h. This tube is connected by a pipe c to a tube b which is fed by an elevator a. Excess material passes by the pipe e to a storage receptacle d from which it is transferred by a worm conveyer f to the sump g.
Patent GB-981657-A (GB)
Title: Photocomposing machine
IPC: B41B17/02
Filed: 1963-05-10
Abstract: 981,657. Photographic type composing apparatus. VARITYPER CORPORATION. May 10, 1963 [May 17, 1962], No. 18697/63. Heading B6W. In a photographic type composer for step-bystep reproduction of single characters, a rotatable matrix disc 25 is provided bearing either a plurality of transparent founts 26A, B and C in concentric arcs. At the exposure station corresponding to the line BL, Fig. 4, a mask 30 is provided having apertures so located thereon as to individually intersect the path of a selected type fount. The selection of a fount will be evident from Fig. 6. The aperture 30-1 in the mask 30 may be such a size that it will expose all three rows on the matrix disc where type founts can appear. The next two apertures 30-2 and 30-3 may be located to expose any fount of intermediate size occupying positions 26A and B or 26B and C on a type matrix. Finally apertures 30-4, 30-5 and 30-6 may be provided, each for a row of fount of smaller size at one of the three possible locations on a type matrix. This would be represented by the type matrix 25 and it is possible using a type matrix as 25 to compose a three-line copy as shown in Fig. 1A. The photographic strip is advanced through the exposure station by a pin wheel feed either side of said station, and the amount of advance is registered on a dial 96, Fig. 1 (not shown) connected through gearing to the drive of the pin wheel feeds. Reverse feed of the strip is provided manually by a knob 97, Fig. 1 (not shown) when a clutch connecting the drive to the pin wheel feeds is disengaged.
Patent GB-666094-A (GB)
Title: Improvements in processes for liquefaction and possible separation of gases
IPC: F25J3/04
Filed: 1949-07-15
Abstract: 666,094. Gas separation &c. L'AIR LIQUIDE, SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES G. CLAUDE. July 15, 1949 [July 24, 1948], No. 18726/49. Class 8 (ii) In a gas liquefying or a gas mixture separation process wherein cooling is effected in at least one heat exchanger and in a cold expander operated at liquefaction temperature with the production of external work, cold is supplied to the exchanger by expanding with external work a gas taken at or near the temperature of the surrounding atmosphere and transferring this cold directly or indirectly over the whole length of the exchanger or at least over its warmer portion. As applied to an air separation process wherein air at 5 to 6 atmospheres pressure after being cooled in nitrogen and oxygen regenerators N, O, Fig. 1, and a cold expander D is separated in a two stage column A, B, the regenerators N<SP>1</SP>, O<SP>1</SP> undergoing regeneration by returning nitrogen and oxygen from the column B are supplied with cold by taking from their warm ends a portion of the carbon dioxide and water bearing nitrogen and oxygen, compressing to 150 atmospheres pressure at compressors C<SP>1</SP>, C2, expanding to about one atmosphere at warm expanders D<SP>1</SP>, D<SP>2</SP> and returning the so warmed nitrogen and oxygen to the regenerators N<SP>1</SP>, O<SP>1</SP> at points preferably above the region of condensation of carbon dioxide. In a modification about three per cent of the air being cooled in the exchanger M is removed therefrom at a point where water vapour has been condensed, is expanded and fed into the regenerator N<SP>1</SP> under regeneration and a second small portion of air removed from the regenerator N at a point where carbon dioxide has been condensed is expanded and fed into the regenerator N<SP>1</SP> at a point below the entry of the first expanded portion. In a further modification nitrogen from the top of the high-pressure column A, Fig. 3, is divided into a first portion which is warmed in an exchanger 3 embedded in the regenerator N<SP>1</SP> and into a second portion which is joined by some of the nitrogen leaving the exchanger 3 before traversing the cold expander D. This cold nitrogen is then joined by nitrogen' from the top of the low pressure column B and is supplied to the regenerator N<SP>1</SP>. The remainder of the nitrogen leaving the exchanger 3 is further warmed in an exchanger 6 before traversing a warm expander D5 and being supplied to the regenerator N<SP>1</SP> at a point intermediate its length.
Patent GB-258978-A (GB)
Title: Improvements in or connected with drying, heating or cooling machines
IPC: F26B17/20
Filed: 1925-07-23
Abstract: 258,978. Simon, W. G., and Simon, F. R. July 23, 1925. Air, controlling direction of flow of. - The material to be dried is fed into an enclosed trough in which rotates a reel of heating tubes, the trough being provided with pipes 8, Fig. 1, or formed with openings 8<a>, Fig. 4, communicating with the exhaust vapour space 2 located beneath the trough. Cold air may be drawn through tubes located in the space 2 and preheated by exhaust air before passing into the trough. The exhaust vapour space may be replaced by tubes placed either beneath or at the sides of the trough. Specification 4486/15 is referred to.