baber/WOPTO huggingface dataset:
Patent GB-347738-A (GB)
Title: Improvements in or relating to bonded materials
IPC: B29C43/00
Filed: 1930-01-28
Abstract: In a process of hot pressing a fibrous filler and a reactive resinoid wherein the binder is first liquefied by heat and set thereby, sufficient pressure being applied to cause the binder, before setting, to flow and fill completely the interspaces between the fibres, the resinoid is maintained before consolidation in a condition in which it will flow at about 170 DEG  C. at pressures less than 500 lbs. per sq. in., or converted into such condition by the addition of a solvent, and then hot pressed under the comparatively low pressure needed.  This characteristic may be obtained by regulating the drying of a varnish-impregnated material so as to leave a certain amount of solvent therein, by adding solvent to a dried impregnated material or by having the resinoid in a less advanced or polymerized state than is customary, e.g. by drying at low temperatures and under partial vacuum.  In an example, fabric, felt or other suitable tissue or paper is coated or impregnated with a solution of a reactive cresol formaldehyde resinoid to yield a fabric containing about 50 per cent resinoid.  The fabric is then dried leaving about 7 per cent volatile ingredients.  A number of these sheets are then superposed and submitted to pressure at about 170 DEG  C. With a pressure of about 55 and 100 lbs. per sq. in. laminated products with specific gravities of about 1,11 and 1,20 respectively, have been obtained.  Fibrous fillers including paper, chopped fabric, asbestos, paper pulp, and wood flour may be employed in place of fabric and any of the resinoids suitable for moulding such as the phenol-formaldehyde or the glycerol-phthalic anhydride types may be used.  In view of the low pressures employed, porous board such as is obtained from bagasse, cornstalks and the like can be used, particularly for an intermediate unexposed layer bonded with surface sheets of paper or fabric impregnated with a resinoid as specified.  The intermediate board may itself be wholly or partially impregnated or the exposed edges only impregnated.  Specification 345,228 is referred to.
Patent GB-674058-A (GB)
Title: Improvements in mining machines
IPC: E21C35/10
Filed: 1949-02-03
Abstract: 674,058. Planers. MAVOR & COULSON, Ltd., and SPROUL, J. C. Oct. 11, 1950. [Feb. 3, 1949] No. 2968/49. Class 68 (i). In a double or single ended wedge planer of the type in which the wedge carrying frame 10, 12, 13 can always freely rotate about the vertical axis of the roof and floor engaging anchoring jack 17 freely mounted in a carriage 14 that is mounted on and can move with respect to the frame by a cylinder and ram unit 12 formed in said carriage, the depth of the cut is regulated by a presser 18 located at either end of the machine. By a manually operated valve system, each presser is caused, as desired, to thrust on, or withdraw from the contact with, the newly exposed face D so that further advance of the wedgecarrying frame is accompanied by lateral turning of the machine towards or away from the old face C. In a double-ended machine, the pressers are mounted in the cutter heads 10 to slide with respect thereto either at an inclination or at right angles to the length of the machine. In each presser is formed a cylinder 20 in which is positioned a piston 21 that is fixed with respect to the wedge head so that the admission or exhaust of fluid under pressure through manually operated valve 24 and conduits 22, 23 causes movement of the presser. In a modified form the presser can be angularly moved about a pivot secured in the head, the presser being linked to a piston moving within a fixed cylinder positioned within the head. The leading wedge edge 6 may be rotated about a vertical axis 30 when the presser is moved, the head being rotated by an arm 36 engaging a notch 35 in a piston 34 moving in a cylinder 33 the ends of which are connected by conduits 31, 32 either to the control valve 24 or to conduits 22, 21. Specification 674,028 is referred to,
Patent GB-146057-A (GB)
Title: Improvements in artificial teeth
IPC: A61C13/10
Filed: 1920-01-30
Abstract: 146,057. Evans, C. E. Jan. 30, 1920. Teeth, artificial.-Basemetal pins B are secured to a tooth A after baking by screwing or soldering, or both, to helical platinum wires C embedded during moulding in the lower portions of recesses in the tooth.
Patent GB-419057-A (GB)
Title: Improvements in surface hardening of austenitic steels and alloy steels
IPC: C23C8/00
Filed: 1933-01-31
Abstract: In a process for surface-hardening of austenitic steels and alloy steels, the austenite in the surface is rendered unstable and converted into other forms, e.g. martensite or pearlite, the inner portion of the steel &c. remaining in its original state either by removing the gamma phase preserving elements, e.g. carbon, manganese nickel &c. from the surface of the steel &c. or by bringing into the surface the elements which limit the existence of the gamma phase, e.g. silicon, aluminium, phosphorus, arsenic, chromium &c.  The two processes may be employed simultaneously or successively.  The removal of the gamma phase elements may be carried out by embedding the steel &c. in a medium that is capable of oxidation or reaction, e.g. in ores or iron scale and heating to 500-1500 DEG  C., or by heating the steel &c. in a current of gas, e.g. in a mixture of nitrogen and oxygen, argon and oxygen, carbon dioxide or a mixture of argon and carbon dioxide, or by heating the alloy steel, e.g. manganese steel in close contact with a carbon steel for such a time that the manganese passes from the surface of the alloy steel into the carbon steel.  To incorporate in the steel &c. the elements which limit the existence of the gamma phase, the steels &c. are heated in contact with the elements to be incorporated or are heated in a current of gas containing the element, e.g. silicon hydride or phosphoretted hydrogen.  If the hardening is carried out to too great a depth the steel &c. is then subjected to a carbonization, but by a shorter concentration to a smaller degree of hardness than that to which the steel was subjected originally.  The steels &c. after the first hardening may be annealed, hardened or tempered.
Patent GB-543477-A (GB)
Title: Improvements in electric toasters
IPC: A47J37/08
Filed: 1941-03-06
Abstract: 543,477. Electric toasters. BRITISH THOMSON-HOUSTON CO., Ltd. March 6, 1941, No. 3085. Convention date, March 6, 1940. [Class 39 (iii)]  Heating elements 3, each on one side of a mica sheet 4, are arranged in pairs facing inwardly, to form two toasting compartments. The elements 3 are supported by horizontal members 6 connecting the end plates 1. Bread-supporting trays 11 are connected at their ends by inverted V-shaped hangers 12 which are carried by a shaft 13 extending horizontally through the space between the compartments and projecting through slots in the end plates 1. Rollers 15 are provided at the ends of the shaft. A shaft 16 is mounted for rotation in the end plates 1, and carries a crank 18 at each end, an operating lever 22 at one end, and cam 23 at the other end. The cam actuates a resilient switch blade to close the heating circuit when the lever 22 is horizontal. The cranks 18 are connected by links 28 to the shaft 13 so that the movement of the lever 22 to horizontal also lowers the supporting trays 11.
Patent GB-1467231-A (GB)
Title: Shedding mechanism
IPC: D03C3/20
Filed: 1974-01-18
Abstract: 1467231 Shedding mechanisms M BATTY 18 Jan 1974 [22 Jan 1973] 3237/73 Heading DIE A shedding mechanism comprises a plate 25 carrying a plurality of needles 4 connected to individual healds and a plate 17 movable relative to the plate 25 and carrying a plurality of coils or electromagnets 20 individually operable according to a punch tape programme to magnetically attract and lift an individual pin 4.
Patent GB-760965-A (GB)
Title: Improvements in methods of and means for locking screwed members against relative rotation
IPC: F16B39/06
Filed: 1954-02-03
Abstract: 760,965. Locking screws and nuts; screwsockets. PHILLIPS SCREW CO. Feb. 3, 1954 [Aug. 10, 1953], No. 3250/54. Class 89 (1). A body 10 of soft material such as aluminium, magnesium, &c. is formed with an aperture to receive an insert 16 of a harder metal or other material; the aperture includes a threaded portion 11 and a thread-relieved portion 12, with an annular shoulder 13 at the junction of portions 11, 12. The insert 16 has a head portion 20 and threaded portion 18 having a thread-relieved section of substantially one thread pitch to form a neck 22 spaced preferably a thread pitch beneath head 20. The head of the insert has a transverse slot 24 to receive a tool for installing the insert, the slot being of such depth as to extend through the thread portion between the head 20 and neck 22 so as to provide keyways 25. A member 26 for looking the insert 16 against rotation in the body 10 comprises a ring portion 28 from which project a pair of oppositely disposed keys 30, 31; the ring 28 receives the head 20 of the insert and is received in the counterbore 12. To effect locking, the keys 30, 31 are inserted in the keyways 25 and the locking member forced in until its top surface is flush with the surface of the body 10; the keys cut keyways through the threads of the body 10. The insert 16 has a screw-threaded bore 37 to receive a threaded stud or other member to be anchored in the body 10. In a modification, Fig. 5, the insert 40 is solid, having a stud or shank 42 projecting from the threaded portion 43; keyways 44 are provided. In a modification, Fig. 8, a tubular insert 69 has a threaded portion 70 and a thread-relieved head 72; a flange or collar 74 projects outwardly from the insert immediately beneath the head 72. The insert 69 is preferably thread-relieved immediately beneath the flange 74 to provide a short unthreaded neck 76. Keyways 73 are formed in the flange 74. The ends of the keys on the locking member are pointed. The insert 69 may be formed as a solid insert with a projecting stud or shank. A further modification of the insert is shown in Fig. 11. In a modification, Fig. 12, a tubular insert 90 is threaded throughout its whole length and has a transverse slot 92.
Patent GB-233434-A (GB)
Title: Improvements in or relating to electric rheostats, switches and the like
IPC: C01F7/04
Filed: 1924-02-09
Abstract: 233,434. Bradley, J. H. Feb. 9, 1924. Variable resistances.-The casing of a rheostat &c. is rendered dust proof by providing the operating arm 2 which extends through the casing 19 with a cylindrical hub 9 which fits bearing surfaces 11 which are completely cylindrical at the end portions of the hub but are only arcuate, Fig. 4, at the middle portion of the hub where recesses 12 and 13 are cut away to allow of movement of the arm 2. The end of the arm 2 carries a laminated brush having its end bent outwards in two portions 5, 7 for making contact with a resistance wire 6 and a fixed contact plate 8.
Patent GB-1119465-A (GB)
Title: Improvements in hand-guided power-driven circular saws
IPC: B27B9/02
Filed: 1967-01-24
Abstract: 1,119,465. Sawing. METABOWERKE K.G. CLOSS, RAUCH & SCHNIZLER. 24 Jan., 1967 [5 Feb., 1966; 3 Dec., 1966], No. 3431/67. Heading B5L. A hand circular saw comprises an electric motor 1 in a motor housing 9, a saw blade spindle 8 for carrying a saw blade 2 which is retractable into a saw housing 3 connected to a base-plate 4, and a gap wedge 27 rigidly secured to the motor housing 9, the motor housing together with the saw blade spindle and gap wedge being articulatedly connected through a parallelogram linkage having two levers 14, 15 with the saw housing and base-plate for variation of the cutting depth. The saw housing is connected by pivots 5 to the base-plate, and the levers 14, 15 are connected by pivots 12, 13 to the motor housing and lever 14 is connected by a pivot 16 to the saw housing while lever 15 is connected by a pivot 17 to a holder 20 having a screw-and-nut connection 21, 24 with a slotted attachment 23 on the baseplate whereby the saw housing can be secured in angular relationship to the base plate. A bracket 26 is secured to the motor housing and carries the gap wedge 27 which, during pivotal movement of the motor housing and saw blade always remains a distance a above the lowest point of the saw blade, a slot 7 providing clearance for the saw blade spindle. The motor housing can be retained in an upper rest position by a lever 34 which is urged by a spring 35 about a pivot 33 on the motor housing and engages a dog 36 on the saw housing. The lever is movable about the pivot to release the motor housing by depression of a knob 32 connected to the lever 34 by members 40, 41 and balls 42 disposed in a tube 43. The depth of cut can be determined by a roller 44 on an arm 6 secured to the motor housing engaging an adjustable stop 45.
Patent GB-328339-A (GB)
Title: A method of and apparatus for producing a steam and gas mixture of high pressure
IPC: F22B1/26
Filed: 1929-02-01
Abstract: 328,339. Kalabin, N. AÀ Feb. 1, 1929. No Patent granted (Sealing fee not paid). Generating with direct contact with water; feedwater, supplying and controlling.-Liquid or powdered fuel is supplied under pressure to a gasifying chamber where it is partly burnt and then passes to a chamber containing water where it is completely burnt to produce a steam and gas mixture under pressure. Fuel is supplied by a, pipe 27, Fig. 1, into a gasifying chamber 20 with air controlled bv a valve 25 and the gaseous product enters a rotary combustion chamber 1 where it meets a further supply of air, from passages 22 in the refractory lining of the chamber 20, and is completely burnt in the presence of water supplied through openings 14, 19 in the hollow cylinders 8, 9 on which the chamber 1 is supported. The chamber 1 is provided with baffles 7 for retaining the water on the hemispherical ends of the chamber. For starting purposes easily-combustible fuel is supplied to the gasifying chamber 20 through the passage 30. An electric motor driving the feedwater pump supplying the chamber 1 is controlled by a switch lever 39 carrying a water container 40 of which waste trickles continuously and supplied continuously from a pipe 41 leading from the water space of the chamber 1 and having a cooling coil 12 in the feedwater supply pipe 11. Should the water level sink in the chamber 1 steam is supplied through the pipe 41 and the water level in the container 40 drops, thus causing the switch lever 39 to rotate and increase the speed of the motor and pump. In a modification, the combustion products from the rotary combustion chamber 56, Fig. 2, pass through the tubes 57, 58 of a steam generator and mix with steam in the upper part thereof before passing through a ribbed helical passage around the gasifying chamber 46 where the mixture is superheated. A water-tube boiler may be used instead of a fire-tube boiler. Instead of employing a rotary combustion chamber stirring apparatus in contact with the water may be provided in a stationary combustion chamber. The gasifying chamber may also be arranged vertically in the upper part of the water drum and the flame may act upon the surface of the water.
Patent GB-734754-A (GB)
Title: Improvements in or relating to continuous fractional crystallization process and apparatus therefor
Inventor: ARNOLD PHILIP MILLS
IPC: B01D9/00
Filed: 1951-02-13
Abstract: <PICT:0734754/III/1> <PICT:0734754/III/2> <PICT:0734754/III/3> A multi-component liquid mixture is cooled to crystallize at least a portion of one component, the resulting crystals are moved, without change in chemical constitution, from a zone of lower temperature to a zone of higher temperature containing a body of liquid so as to melt or dissolve at least a portion of the crystals, the movement of crystals being through at least one such body of liquid and resulting in displacement of liquid formed by the melting or dissolving of the crystals countercurrent to the movement of crystals, a first product is removed from the zone of higher temperature and material from which said product has been removed is removed from the zone of lower temperature.  In Fig. 1 a two-component mixture is introduced at 1 and 2 into crystallizer 3 where crystals may form.  Crystals are discharged at 13 and taken to crystallizer 15 which is at a higher temperature, while liquid is discharged by line 4 to crystallizer 5 at a lower temperature, and similarly for crystallizers 15, 18, 5 and 7 except that substantially pure crystals are finally withdrawn from crystallizer 18 and liquid is withdrawn from crystallizer 7 at 8.  In the apparatus of Fig. II feed enters a trough 52 at 51, liquid is withdrawn at 58 at the lower temperature end and crystals at 60 at the higher temperature end of the trough. Crystals are moved to the outlet 60 by paddles 57 on an endless band 56.  In the apparatus of Fig. 3 the heavier crystals sink through the lighter mother liquor and are removed at 80 at the higher temperature end of the vertical vessel 72.  Feed is introduced at 71 and liquid removed at 75 from the lower temperature end of the vessel.  Part of the liquid is recirculated after cooling at 73.  The Specification lists mixtures of hydrocarbons which can be separated by the process of the invention and also states that the process is applicable to the sodium carbonate-sodium sulphate-water, sodium nitrate - sodium chloride - water and sodium hydroxide-sodium chloride-water systems.
Patent GB-1532506-A (GB)
Title: Solutions of anionic emulsifiers in hydroxyl-free solvent
IPC: C09K23/42
Filed: 1976-01-29
Abstract: 1532506 Emulsion concentrates of waterinsoluble biocides HOECHST AG 29 Jan 1976 [31 Jan 1975] 03511/76 Heading A5E An emulsion concentrate of a water-insoluble organic biocide which is sensitive to hydrolysis in an organic non-polar solvent which is free from hydroxyl groups, contains an anionic emulsifier and optionally an ionic emulsifier, and has as viscosity reducing agent a compound of formula: in which each of R<SP>1</SP> and R<SP>2</SP> is an alkyl group having from 1 to 4 carbon atoms, an alkylcarbonyl group having from 2 to 4 carbon atoms or a carbamoyl group having from 1 to 4 carbon atoms, X is an alkylene group having from 2 to 4 carbon atoms and n is in the range of from 1 to 20. The biocide may be a phosphoric or thiophosphoric acid ester and the solvent may be benzene, toluene, xylene or kerosine. Viscosity reducing agents used are ethylene glycol dimethyl and diethyl ethers; di-, tri- and tetra-ethylene glycol dimethyl ethers; diethylene glycol dibutyl ether; methyl-tetraglycol t-butyl ether; methyl glycolbutyl glycol-, and methyldiglycol-acetates; glycol diacetate; ethyl glycol- and methyldiglycolmethylurethanes; propanediol- and butanedioldiacetates; and butanediol dimethylurethane.
Patent GB-122069-A (GB)
Title: Raft Structure for Over-seas Transport.
Inventor: WESTERGAARD HAROLD
IPC: B63B35/62
Filed: 1918-02-28
Abstract: 122,069. Westergaard, H. Feb. 28, 1918. Rafts. - A raft structure, power-driven or towed, for transporting timber and other goods overseas comprises a sub-structure of longitudinal members a formed from connected timbers and bourd together by transverse members b, c. Transverse timbers d are filled in between the transverse members b, c followed by layers of longitudinal and transverse timbers e, f, g, &c, all bound together by steel ropes &c. h. The longitudinal timbers are all arranged to break joint at the ends. The front end of the raft is pointed, as shown in Fig. 2. to reduce resistance to towing or propulsion.
Patent GB-930691-A (GB)
Title: Improvements relating to speed sensing apparatus
Inventor: PECK WILLIAM C
IPC: G01P1/10
Filed: 1961-01-31
Abstract: 930,691. Measuring speed electrically. UNITED AIRCRAFT CORPORATION. Jan. 31, 1961, No. 3666/61. Class 40 (1). In a speed-responsive device the output from a 3-phase tachometer generator 10 varies in both amplitude and frequency with speed of rotation. The three-phase output is applied to a full-wave rectifier 18 to produce a D.C. signal on line 32 whose amplitude is a function of the speed being measured. One phase of the tachogenerator output is also applied to a step-up transformer 38 and then to a frequencyresponsive circuit comprising resistor 42 and capacitor 44 whose amplitude-frequency response is the inverse of the amplitude-frequency response of generator 10, thus a constantamplitude signal is applied to bridge rectifier 46 to produce a constant voltage across potentiometer 48, the slider of which may be manually adjusted to determine a reference. The signal appearing on line 52 is then compared with the speed-dependent signal on line 32 in the magnetic amplifier 34, the output of which may be used to control e.g. the fuel input of the engine driving the tachogenerator to control the speed in accordance with the manual setting of potentiometer 48.
Patent GB-1073687-A (GB)
Title: Vertex refractionometer with marking device
IPC: G01M11/00
Filed: 1965-01-28
Abstract: 1,073,687. Reservoir pens. GARL-ZEISSSTIFTUNG Jan. 28, 1965 [Feb. 8, 1964], No. 3774/65. Heading B6P. [Also in Divison G2] Means for marking the centre point and horizontal axis of an eyeglass comprises three capillary tubes 5, 6, 7 each. provided with an in supply container, the tubes being yieldably supported in a holder 4 which is mounted on a vertex refractionmeter (see. Division G2) for. movement between an operative and an, inoperative position. When not in use the tubes are sealed by discs 9-11.
Patent GB-808801-A (GB)
Title: Convertible bed settees and chairs
Inventor: HALL WILLIAM JOSEPH
IPC: A47C17/23
Filed: 1955-02-09
Abstract: 808,801. Bed-settees. CORONET SPRING WORKS Ltd. May 5, 1955 [Feb. 9, 1955], No. 3810/55. Addition to 800,854. Class 52(2) In bed settees or chairs of the type described in the parent Specification, the innermost bed frame section 7 is urged forwardly by a spiral spring (not shown) around its pivot 16 and legs 22 are pivoted to the front section 10 and are automatically projected by a link 24 when sections 9, 10 are unfolded.
Patent GB-598308-A (GB)
Title: Improvements in illuminating projectors for cinematography, floodlights, searchlights and the like
IPC: G03B21/20
Filed: 1945-02-15
Abstract: 598,308. Electric lamps. HEWITT, N. E. Feb. 15, 1945, Nos. 3867/45 and 966/46. [Classes 75 (ii) and 75 (iv)] [Also in Group XX] Vacuum chambers 23, 24 or chambers fitted with evacuating means are arranged behind the reflector 21 and reflecting inner surface 22 of the casing of a projection lamp. The casing may be fitted with a front lens 11 which may form the front of a cylindrical or annular vacuum chamber 12. The chamber 12 may be divided by a transparent partition 18 to form a separate chamber through which a coloured gas or fluid may be passed to colour the light. The reflector 21 and reflecting surface 22 may be continuous and be backed by a single evacuated chamber. Specifications 7311/09, [Class 75 (iv)], 110,489, [Class 97 (i)], 428,498, 552,970, 557,162 and 598,340 are referred to.