baber/WOPTO huggingface dataset:
Patent GB-1451313-A (GB)
Title: Apparatus and process for the production of pile surfaced  materials
IPC: D04H11/08
Filed: 1972-12-04
Abstract: 1451313 Pile fabrics IMPERIAL CHEMICAL INDUSTRIES Ltd 22 Nov 1973 [4 Dec 1972] 04572/76 Divided out of 1451311 Heading D1K The disclosure is the same as the parent but the claims are directed to the cooling of the back of the fabric. Reference has been directed by the comptroller to Specification 1329426.
Patent GB-939385-A (GB)
Title: Preparation of actinide-aluminium alloys
IPC: C22C1/02
Filed: 1962-02-06
Abstract: Alloys of aluminium with U or Th are prepared by dissolving the actinide oxide or chloride in molten alkali metal chloride; introducing (in the case of the oxide) a chlorinating agent into the molten mass to form the actinide chloride; and then adding aluminium metal, and passing an oxygen containing gas or water vapour through the melt.  The actinide metal is formed, alloys with the Al present, and the alloy phase is separated from the salt phase on cooling.  The alkali metal chloride is preferably an equimolar mixture of sodium and potassium chloride.  The dissolution of the actinide material is carried out at a temperature of from 650-700 DEG  C. and the chlorinating agent can be HCl, Cl2, phosgene, or mixtures thereof, and during chlorination the mass is held at a temperature between 730 DEG  and 770 DEG  C.  The oxygen containing gas may be air, preferably moist. Specification 870,691 is referred to.
Patent GB-818135-A (GB)
Title: Gear tooth chamfering tool
IPC: B23F21/00
Filed: 1958-02-12
Abstract: 818,135. Gear - finishing. NATIONAL BROACH & MACHINE CO. Feb. 12, 1958 [April 22, 1957], No. 4581/58. Class 83 (3). A gear-tooth chamfering-tool comprises a pair of relatively-adjustable circular, toothed, guidebodies 20, 30 and a circular chamfering cutter body 40 coaxial with the guide-bodies and having cutting-portions aligned with the toothspaces of the guide-bodies. The tool is engaged in tight mesh with the work to chamfer the top edges of the teeth. The cutting-edges on V- grooves 44 in the tool may be aligned if the operation is carried out with crossed axes, but not if the work and tool axes are parallel. Screws 54 engaged in tapped holes in the body portions abut inclined recesses 49 in the cutter body to permit the relative adjustment of the guide bodies, which enables the amount of chamfer on opposite edges of the gear teeth to be individually controlled.
Patent GB-1079978-A (GB)
Title: Variable speed belt drive
IPC: F16H9/12
Filed: 1965-02-03
Abstract: 1,079,978. Expanding-wheel gear. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. Feb. 3, 1965 [Feb. 3, 1964], Ne. 4751/65. Addition to 990,391. Heading F2D. In a V-belt expanding pulley driven by a constant speed electric motor (not shown), for driving a washing drum in a washing machine (both not shown) similar -to that described in Specification 990,391, comprising an axially fixed flange 1 and a flange 2 moved axially by centrifugal cam masses 9, 12 which are pivoted at 11 on a motor shaft 3 and locked in the minimum diameter setting for a low output speed, e.g. slow speed wash, by an axially slidable spring-engaged lock-disc 18, in which, an electromagnet 17 is momentarily energized to attract the lock-disc, releasing the cam members 9, 12 which move the pulley flange 2 to a greater diameter setting through a plate 8 and push-rods 7 slidably mounted in grooves on the shaft, the lock-disc 18 is formed with shoulders 19, 20 which -serve to lock the cam masses 12 in intermediate positions b, c, axially stationing the pulley flange 2 at B and C to provide intermediate speed settings between the minimum and maximum A, D, each setting simply requiring momentary energization of the electromagnet 17 to release the cam masses from their appropriate shoulder, or stop, for engagement with the next stop on the plate 8, the maximum pulley setting D being achieved when the cam masses are completely released from the plate 8 as at d. The motor and V-belt arrangement are suspended on pivot arms to tension the belt by weight of the motor &c. which automatically restores minimum pulley diameter conditions when the motor stops.
Patent GB-121054-A (GB)
Title: Improvements in the Coating of Films of Celluloid or like Material with Sensitized Photographic Emulsion.
Inventor: SCOTT NEWTON LIVINGSTONE
IPC: G03C1/74
Filed: 1918-03-19
Abstract: 121,054. Scott, N. L. March 19, 1918. Coating materials in long lengths.-Relates to coating strips of celluloid &c. with a sensitized photographic emulsion, and consists in damping the back of the strip a by a wick g and pressing it by a roller e into contact with the periphery of a rigid cylinder f so that the strip remains closely and evenly adherent thereto during the coating and setting operations. The coating is applied by a roller k dipping in a trough m of hot emulsion and rotating in a direction opposite to that of the strip a on the cylinder f. The cylinder f is chilled internally so that the film is set during the remainder of its travel in contact with the cylinder, after which it is stripped from the cylinder and led to a drying-reel.
Patent GB-547082-A (GB)
Title: Improvements in sound receiving apparatus
IPC: H04R3/00
Filed: 1941-04-11
Abstract: 547,082. Eliminating noise. CAIN, G. T. April 11, 1941, No. 4824. [Class 40 (iv)] In an arrangement for enabling a desired sound to be heard in the presence of disturbing noise, as for example on an aeroplane, the sound mixture received by a microphone a is recorded by a magnet e on an iron tape i and a second magnet h records in opposite phase the noise alone, which is derived by reproduction from a previously made steel tape record c. A pick-up magnet k feeds headphones l or an amplifier and loudspeaker with the desired sound. The magnet h is adjustable in position and a rheostat g is included for varying the current thereto in order to balance out the noise accurately. Induction between the magnets e, h, k is prevented by screens f, j. Separate tape records c may be provided for use when the aeroplane is travelling at different speeds.
Patent GB-1011995-A (GB)
Title: Process for polymerising e-caprolactain and polymerisation catayst
Inventor: GELEJI FRIGYES
IPC: C08G69/16
Filed: 1963-02-06
Abstract: A process for the production of a polyamide comprises polymerizing e -caprolactam in the presence of a catalyst made by reacting e -caprolactam with one or more polybasic inorganic acids.  Specified acids are pyrophosphoric, orthoarsenic, pyroarsenic, metaarsenic, orthoboric and pyroboric acid.ALSO:A process for the production of a catalyst compound comprises reacting e -caprolactam with a polybasic inorganic acid. Specified acids are pyrophosphoric, ortho-arsenic, pyro-arsenic, meta-arsenic, orthoboric and pyroboric acid. The catalyst is preferably made by dissolving e -caprolactam in aliphatic or aromatic hydrocarbon and reacting the resultant solution with the acid(s).  The examples describe the reaction of e -caprolactam dissolved in benzene or water with each of the above specified acids.
Patent GB-246683-A (GB)
Title: Manufacture of condensation products of the anthraquinone series
Filed: 1925-02-23
Abstract: 246,683. Farbwerke vorm. Meister, Lucius, & Br³ning. Feb. 23, 1925. Addition to 205,502, 220,304, and 222,125). Benzanthrone dyes.-The condensation products (dibenzopyrenequinones) obtainable according to the processes of the parent Specifications are obtained by heating 1 : 5-diaroylnaphthalenes with aluminium chloride for a considerable time at a high temperature. According to the conditions the dibenzopyrenequinones themselves or the Bz-1-aroyl-benzanthrones are obtained; the latter may then be further heated with aluminium chloride to obtain the former. Further, a better yield of the products can be obtained, both in the above-described process and in the processes of the parent Specifications by introducing air or oxygen into the mixture during the reaction. The products can be purified by treatment with hypochlorite, or similar oxidizing agent, and extraction with spirit; the soluble portion consists chiefly of Bz-1-aroylbenzanthrone; the yield of dyestuff can be improved by adding more aluminium chloride to the crude melt obtained when oxygen has been used and heating further. According to examples (1) 1 : 5-dibenzoylnaphthalene is heated with aluminium chloride for 2 hours at 170-195‹ C.: (2) benzanthrone, benzoylchloride, and aluminium chloride are heated while introducing oxygen for 40 hours at 120‹ C.; (3) the crude reaction product of example 2 is further heated with aluminium chloride for 24 hours at 180‹ C.
Patent GB-1399552-A (GB)
Title: Multi colour dyeing mechanism for textiles and the like
IPC: D06B11/00
Filed: 1973-02-01
Abstract: 1399552 Dyeing apparatus F MORRIS 25 April 1973 [26 April 1972 1 Feb 1973] 19434/ 72 and 5032/73 Heading D1L [Also in Division B6] In a spray printing machine of the type in which a number of colour jet nozzles are carried by rails which can be reciprocated by a crank across the width of a moving web of textile &c, material, the crankshaft is carried by a lever which is laterally displaced by the action of a rotating cam at various points in the reciprocating cycle thus producing variations in he wave pattern applied to the web. Furthermore a carriage supporting a plurality of rotatable colour jet nozzles is reciprocated above the moving web in a direction lengthwise thereof and at a velocity equal to that of the web whereby the relative movement between the carriage and the web is stopped for a sufficient time for circles or other figures to be superimposed upon the wave pattern.
Patent GB-177935-A (GB)
Title: Improvements in variable speed gearing
IPC: F16H3/36
Filed: 1921-02-14
Abstract: 177,935. Mitchell, D. C. Feb. 14, 1921. Variable-speed gearing comprises a toothed gear d, Fig. 4, slidable so as to engage any one of a set of gears b' arranged in conical form, and means separating the gears b<1> for preventing the transfer of the gear d more than one step at a time and for ensuring that the transfer takesplace when teeth of adjacent gears b<1> are in line. Such means may comprise shrouds c with staggered gaps c<1>, Fig. 6. The gear d is supported resiliently in a carriage g which is operated through a lever k, Fig. 7, rack l, and a pinion l<1> from a hand-wheel l' with a spring lock l<4>. The: hand-wheel is turned to operate the gear d which is held in a position such as is shown in Fig. 5, springs f being stressed until a gap c' registers with the gear d; the gear then shoots across one step. An arrangement is described by which the gear d is held in the middle of the gear b<1> after the springs f are stressed by one of a set of trip levers which is released when a finger enters a gap c<1>.
Patent GB-144586-A (GB)
Title: Improvements in cigarette tubes or holders
IPC: A24F13/10
Filed: 1920-02-19
Abstract: 144,586. Locks, T. G. Feb. 19, 1920. Cigar and cigarette holders.-The mouthpiece T is formed with a conical shoulder and plunger C for ejecting the stub end of the cigar or cigarette from the mouth of the holder A, and is retained within the holder by a collar D, or ring E, placed in position or formed on one of the parts A, B after such parts have been assembled.
Patent GB-1150075-A (GB)
Title: Improvements in or relating to manufacture of composite building sheets and building sheets so manufactured
Inventor: PAYNE HAROLD JAMES WILLIAM
IPC: B32B27/00
Filed: 1966-04-16
Abstract: 1,150,075. Foam cored building panel. H. H. ROBERTSON CO. 29 March, 1967 [16 April, 1966; 2 Feb., 1967], Nos. 16790/66 and 5074/67. Heading B5N. [Also in Division E1] A method of making a composite building panel comprises applying a predetermined amount of foaming plastics composition, e.g. polyurethane from spraying station 65 to the upper surface of a first sheet 10; delivering the resultant product with the plastics composition actively foaming to a panel assembly station 66, applying a profiled second sheet 15, e.g. of metal to the first sheet with the foaming plastics composition between the two sheets and retaining the sheets in juxtaposition, e.g. by rolls 67 until active foaming ceases, the said predetermined amount of foaming plastics composition being less than that required to fill all of the space between the sheets, whereby the inner surface of said profiled sheet 15 engages the foamed plastics composition 20 over less than its entire area and expansion spaces 21 are provided adjacent to said profiled sheet. The first sheet may comprise metal supplied from coil 61 and cut by guillotine 62, plasterboards supplied from stack 70 by conveyer 71 or asbestos felt supplied from coil 80, shaped at station 82 to provide side walls to enclose the longitudinal edges of the panel and cut by guillotine 83. The sheet 15 may be longer than sheet 10 and the longitudinal edges of the sheets may be provided with flanges for interconnection of panels.
Patent GB-152263-A (GB)
Title: Means for raising sunken ships
IPC: B63C7/04
Filed: 1920-02-19
Abstract: 152,263. Meredith, H. Feb. 19, 1920. Salvage vessels.-A salvage vessel consists of two portions a, b, pivotally connected together at c, and joined at their other ends by a detachable coupling d. The shape of the pontoons is such that an open space x is left between them into which the sunken vessel is raised by means of lifting cables f and winches e. The vessel is removed by loosening the coupling d and separating the ends of the pontoons. Pumps and compressed air plant may be provided by means of which the pontoons may be raised and lowered.
Patent GB-651741-A (GB)
Title: Improvements in or relating to space discharge devices such as photoelectric cells
IPC: H01J40/04
Filed: 1948-02-20
Abstract: 651,741. Discharge apparatus. WESTERN ELECTRIC CO., Inc. Feb. 20, 1948, No. 5092. Convention date, Jan. 25, 1941. [Class 39 (i)] A pellet of vaporizable material for a discharge tube is rigidly held between imperforate and flexed gauze discs secured together at their edges. A photo-electric cell, filled with rare gas, has two moulded parts 5, 6 sealed at 7, the upper part housing the exhaust tube 8. The frusto-conical cathode 9 of silver or silvercoated nickel or copper is riveted at 16 to mica discs 10, 11 and to a nickel ribbon 15 which is welded to the cathode wire 19. Three cathode support wires 19 are welded to eyelets 12 in the disc 11 and two of the wires 19 are welded to eyelets in a mica disc 26 from which the caesium pellet holder 24 is spaced by a wire 27 which is welded to the holder and to eyelets 29. The holder comprises imperforate and gauze nickel discs which are first welded together at one point, the gauze disc is then flexed following the introduction of the pellet so that the two discs can be secured together at their periphery, e.g. by spot-welding at a number of points. The nickel ring anode 35 is supported by two wires 36 passing through notches in the discs. The mica discs are baked for 16 hours at 105‹ C. During activation of the cell, it is baked at 400‹ C. and the cathode then subjected to a discharge in oxygen to form the layer of silver oxide which is subsequently reduced by heating; this cycle may be repeated to roughen the cathode prior to a limited discharge in oxygen in dependence upon the amount of caesium which is liberated from the pellet by a highfrequency coil about the stem 6. Copper tubing around the part 5 screens the cathode from the coil. The cell is sensitized by heating in an air-stream at 225‹ C. The pellet may comprise an exothermic mixture of caesium chromate, chromic oxide and aluminium powder. Specification 553,841 is referred to.
Patent GB-725830-A (GB)
Title: Improvements in or relating to apparatus for moulding plastic material, e.g., groundmeat
IPC: A22C7/00
Filed: 1953-02-24
Abstract: 725,830. Reciprocating mould table machines. HOLLYMATIC CORPORATION. Feb. 24, 1953 [April 25, 1952], No. 5133/53. Class 87 (2). Ground meat is fed from a hopper 12 by feeders 18, 19, Fig. 4, the power on which is increased as they close together, into a mould cavity 15a in a reciprocating slide to make a meat patty which is later knocked out of the cavity, on to the pile 78, Fig. 7, by ring member 47. Each patty is provided with a separating paper strip 61a from the stack on the platform 60. Feeders 18, 19 in hopper 12 are mounted on shafts 20, 21 of which shaft 21 is rocked by cam lever 39, Fig. 1, and shaft 20 is geared to shaft 21, the cam lever 39 being rocked by cam follower 38 on lever 35. The shape of cam lever 39 is such that the feeder power is increased (and their speed decreased) towards the end of the feed stroke. Lever 35 rocks on shaft 23 on which is also mounted a member 22 which is fixed to the handle 24 and carries a bracket 34 which bears against lever 35. A coiled spring is housed in, and attached to, cylinder 37 and also attached to shaft 23, on which cylinder 37 is mounted, and a pin 36 carried on lever 35 may be located in any of the holes 37a thus to vary the stress of the spring and the force with which lever 35 is held against bracket 34. The apparatus may be operated by hand lever 24 or, through cam follower linkage 32, 33, 25, by a motor. In hand operation, and starting at the feeder open position of Fig. 7, the handle 24 is rocked towards the position shown in Figs. 1 and 4. The mould slide 15 is moved by link 43 to present the mould cavity 15a to the hopper outlet and the knockout ring 47 is raised by toggle joint 50. At the same time, the spring- stressed lever 35 bearing against the member 22 fixed to the handle 24 rocks the cam lever 39 until the feeders 18, 19 meet resistance, whereupon member 22 is separated from lever 35 and the further. movement of the feeders 18, 19 is governed by the coiled spring in cylinder 37 urging on member 35. This final feeding force may be regulated by placing pin 36 in a particular hole 37a according to the consistency of the ground meat. On movement back from the position shown in Figs. 1 and 4 to that shown in Fig. 7, platform 60 carrying a stack of paper sheets 61 is urged upwardly by spring 63 and causes the topmost sheet, which has previously been fed forward by friction strip 65, to be pressed against the bottom of the patty to act as a separator 61a after the patty is knocked out.
Patent GB-1499262-A (GB)
Title: 9beta,10alpha-cholestadiene compound its preparation and use
IPC: C07C401/00
Filed: 1976-02-11
Abstract: 1499262 A 9#,10α-cholestadiene compound and its conversion to 25-hydroxy previtamin D 3  UPJOHN CO 11 Feb 1976 [21 Feb 1975] 05269/76 Headings C2U and C2V The novel 9#,10α-cholesta-5,7-dione-3#,25- diol (II) is prepared by irradiation of cholesta- 5,7-diene-3#,25-diol (III). It is known to irradiate (III) to give 25-hydroxy previtamin D 3  (I) of the formula but (II) had not heretofore been isolated from the reaction mixture. Chromatography may be used to isolate (II) as a crystalline substance. Irradiation of (II) gives (I). Irradiation is effected in solution, conveniently with a medium pressure mercury lamp. The wavelength is desirably greater than 270 mÁ. Thermal rearrangement of (I) gives 25-hydroxy cholecalciferol.
Patent GB-339203-A (GB)
Title: Improvements in operating curettes
IPC: A61B17/22
Filed: 1930-02-17
Abstract: 339,203. Mierley, I. C. Feb. 17, 1930. Curettes.-An aspirating curette for removal of bone, as in mastoid and radical sinus operations, comprises a tube 10 slightly curved at 11 and terminating in a cutting edge 14. A squared ribbed handle portion 12 is provided and a tube nipple 13 for attachment of the aspirating device.
Patent GB-589325-A (GB)
Title: Improvements relating to methods of inserting cylinder liners into position in cylinder blocks to receive them
IPC: B23P19/04
Filed: 1945-03-02
Abstract: Preparatory to inserting a metal or metal alloy liner into an engine block, and into a jig prior to electro plating, the outer surface of the liner or the surface of the block bore, or both surfaces, is or are coated with a comparatively soft metal to facilitate insertion and withdrawal.  The metal used may be copper, silver, nickel, iron, lead, tin, zinc, cadmium or aluminium and preferably a good heat conductor, the coat being applied electrolytically, by spraying, or by smearing with a paste.  The inner surface of the liner may be metal-plated electrolytically after insertion into the blocks.
Patent GB-169140-A (GB)
Title: Improvements in mechanical hammers
IPC: B25D17/06
Filed: 1921-02-16
Abstract: 169,140. Tekniske Forsogrsaktieselskab. Sept. 15, 1920, [Convention date]. Percussive drills.-A power actuated tup 45 is entirely enclosed in a casing 44 and acts on the tool 5 (e.g. a chisel) through a member 8 attached to or constituted by part of the casing wall. In the Specification as open to inspection under Sect. 91 (3) (a), Fig. 1, in which the invention is shown as applied to the tool described in Speoification 157,870, [Class 80 (iv), Mechanism &c.], does not appear, and the invention is described with the aid of diagrams such as Fig. 3 (Cancelled) in which B represents the tup, 2 the intermediate member and M the tool. The Specification also states that the member Z may take the form of a plug attached to the tool. This subject-matter does not appear in the Specification as accepted.
Patent GB-1155226-A (GB)
Title: Counting Machine with Adjustable Article Channeling Mechanism.
IPC: G06M7/02
Filed: 1968-02-02
Abstract: 1,155,226. Conveyers. DELTA ENG. CORP. 2 Feb., 1968 [24 Feb., 1967], No. 5551/68. Headings B8A and B8S. [Also in Division G4] The width of a conveyer channel 86 is adjustable, a detector for counting objects being simultaneously adjusted to be aligned with the centre line of the channel. A vibratory feeder 4 is connected to an inclined channel 86, one edge 46 of which is fixed while the other edge 58 is adjustable by a hand wheel 34 controlling movable nuts 66 on screwed shafts 70. A motor-driven belt conveys the articles down the channel to a detector 8 which is moved at half the rate of the edge 58. The detector comprises one or a pair of photoelectric devices which operate a counter 14. At the attainment of a predetermined number a solenoid operates to reverse a vane (174) (Fig. 9) to release the articles trapped in a receptacle 10.