baber/WOPTO huggingface dataset:
Patent GB-667599-A (GB)
Title: Improvements in and relating to foundry flasks
IPC: B22C21/00
Filed: 1950-02-07
Abstract: 667,599. Flasks. NILSSON, S. Feb. 7, 1950 [Feb. 24, 1949], No. 3183/50. Class 83 (i). In foundry flasks comprising halves which may be separated by the action of a helical spring, the spring is disposed within a tube which serves for guiding the two parts relatively to each other. To the frame members 6 of each of the flask halves 4 and 5 are secured plates 8 by means of bolts 9 having curved and plane heads which form stops for the correct spacing of the flask members 4 and 5 when in the closed position. The parts 4 and 5 are guided relatively to each other by a tube 11 through which passes a spring 12 which acts to press the parts away from each other. Arms 14 joined by a handle 15 are mounted at the ends of a bolt 13 passing through the spring 12 and are formed with sloping surfaces 16 which co-operate with complementary surfaces on the ends of the plates 8 so that on rotating the arms the plates 8 and flask parts 4, 5 are forced together against the action of the spring.
Patent GB-611625-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/143
Filed: 1946-01-31
Abstract: 611,625. Slicing machines. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd. (Maatschappij van Berkel's Patent N.V.). Jan. 31, 1946, No. 3192. [Class 28(ii)] In a slicing machine of the reciprocating table type, the table 13 Fig. 1 is mounted on rollers 24, 25 supported in housings 36, 38 the former of which is guided by a channel 26, 27 formed on the base 10. A second channel 28, 29 is provided for the housing 38, the channels also serving as stationary reservoirs for lubricating oil. Rails 31 for the rollers are mounted in the channels on resilient pads 32 to reduce noise. Each assembly of rails and pads is held taut by an adjustable lever, Fig. 6 (not shown). The housing 36 is secured to a bracket 41 by a pivot pin 40 Fig. 2 which is arranged lengthwise about the same level as the roller axles. Cross-conduits 51 are provided to collect the oil from the rollers and are slotted to permit the oil to pass over the outer sides of the housings and thereby lubricate the sliding surfaces of the machine. Ducts 53 which receive oil from the conduits 51 during the motion of the table lubricate the bearing 20 of the cross-shaft 21. The roller 25 lubricates the crank shaft and crank bearings 19, 23 by a duct 54. Cross-webs 55 in the housings receive oil from the rollers to lubricate their axles, and an adjustable face-plate 45 is provided at the base of the housing 36 to take up wear. As shown in Fig. 5, the face-plate 45 is adjustable by a nut 50 which engages spring controlled wedges 47.
Patent GB-165889-A (GB)
Title: Improvements in and relating to electrically-operated relays for use with valve setsfor transmitting wireless signals
IPC: H03F1/54
Filed: 1920-02-02
Abstract: 165,889. Macrorie, A. K., and Shearing, G. Feb. 2, 1920. Thermionic oscillation generators.-In order to prevent over-heating and excessive powerdissipation, the filament current of a transmitting-valve is automatically cut off when the anode current exceeds a predetermined value. Fig. 1 shows a transmitting-set comprising three transmitting-valves TV, and two rectifying-valves RV, the latter being used to convert an alternating- current supply for the plates of the valves TV. Excessive anode current causes a relay coil A in the earth lead to operate a spring-controlled solenoid plunger C to close a contact F, thereby shorting the holding coils N, H and opening the alternator circuit feeding the valve filaments; the shorting of the coil H earths a condenser S which is charged from the plates of the valves RV. At the same time, a contact G energizes a holding-coil B from the continuous-current supply to retain the plunger C. Lamps L, L<1> indicate that the valves have been extinguished. The valves are re-lit by first opening and then closing a tumbler switch O in the operating-cabinet. The value of current necessary to operate the cut-out relay A, B, C can be adjusted by means of a shunt resistance J. If the supply has its negative side earthed, a common relay coil can be used in place of the two coils A, B. A condenser M fitted with a spark-gap K keeps tho valve current in phase with the grid-potential variations.
Patent GB-507783-A (GB)
Title: Improvements relating to fluid flow governors
IPC: G05D7/01
Filed: 1938-02-02
Abstract: 507,783. Pressure -regulating valves. EVERED & CO., Ltd., and PINKESS, L. H. Feb. 2, 1938, No. 3220. [Class 135] A diaphragm-actuated pressure regulator has a double beat valve member formed in one piece with the upper beat 8a small enough to pass through the lower seat aperture 3e. A removable plug 7 permits the insertion of the valve member. The diaphragm is loaded by a spring 5 compressed by a cap 6 screwed into the upper part of the casing.
Patent GB-1100482-A (GB)
Title: Methods and devices for positioning inking rollers of printing machines
IPC: B41F31/15
Filed: 1965-01-25
Abstract: 1,100,482. Printing-apparatus. MASCHINENFABRIK WINKLER, FALLERT & CO., A.G. 25 Jan., 1965 [7 Feb., 1964; 1 April, 1964], No. 3257/65. Heading B6C. Apparatus for adjusting the position of forme inking rollers 4 or ink distribution rollers 5 in an inking train comprises a freely turning bearing 11 for each end of the roller, each bearing being mounted in a housing 12, a slide 13 rigidly attached to said housing, a movable slide 14 mounted within the slide 13 and biased by means of a spring 19 against the slide 13, and a fluid-actuated piston 16 adapted, via a lever 15, to move the slide 14 against the adjustable pressure of the spring so as to lock the slide 13 in its guides. The pressure applied to the piston 16 to lock the slide 13 is maintained in operation. The roller is initially moved into contact with its counter roller by pressure on the piston 16 which is less than that required to extend the spring 19 and look the slide 13. The slide 14 is provided with inclined surfaces arranged by means of rollers to force outwardly the thin wall sections of the slide 13, Fig. 4 (not shown), on movement of the slide 14. A spring 18 releases the roller when the fluid pressure is relieved. The inking roller may be locked by releasing a screw 33 and then tightening it up again to set a stop 35 which limits the roller position. In an alternative embodiment, Figs. 6 and 7 (not shown), the piston is returned by fluid pressure admitted to its upper side. In a further embodiment, Fig. 11 (not shown), a screw (60) is tightened to lock a roller bearing housing (53) when the inking roller (54) co-operates with its counter pressure roller. Increased pressure is then applied, after locking, to the housing 53 via members (49-52) using a conduit which by-passes a pressure reducing valve. The roller mounting (41) may be moved transversely by an eccentric pin (68), Fig. 13 (not shown).
Patent GB-113345-A (GB)
Title: Improvements in Springs.
Inventor: BRADSHAW GRANVILLE EASTWOOD
IPC: B60G11/04
Filed: 1917-03-07
Abstract: 113,345. Bradshaw, G. E. March 7, 1917. Laminar springs.-A spring is built up of two or more leaves G of even length secured together at each end by spring-blocks J. The leaves are weakened at or near the centre in either width or thickness or both. The spring may be damped at one or more places by a series of short plates inserted between the leaves and held by clamps.
Patent GB-556110-A (GB)
Title: An improved furnace
IPC: F27B14/00
Filed: 1942-03-16
Abstract: 556,110. Crucible and melting-pot furnaces. FOUNDRY REFRACTORIES, Ltd., and TYRER, B. P. March 16, 1942, No. 3411. [Classes 51 (i) and 51 (ii)] A crucible or melting pot furnace comprises a crucible &c. chamber 13 heated by gas from a producer 12 from which gas passes into a vertical flue 18 and is delivered tangentially into the lower part of the chamber 13. Air for combustion is supplied by a fan 19 through conduits in the furnace walls to the ashpit of the producer and to the vertical flue 18 to pass with the gas into the chamber 13. Gases leave the upper part of the chamber 13 through a tangential flue 22. In the modification shown in Fig. 5, air is supplied from the blower 19 to a conduit 24 and a damper divides the air into two portions one passing into the chamber 13 tangentially to meet the gas from the flue 18 and the other passing through a flue 21 around and beneath the chamber 13 to the ashpit of the producer 12. Gases escape from the chamber 13 through openings 26 to exhaust flues 25, 22 in which may be arranged a thermostat to control the air supply to the producer and crucible chamber.
Patent GB-469253-A (GB)
Title: Improvements in and relating to lighting arrangements for cycles
IPC: B62J6/00
Filed: 1936-02-05
Abstract: 469,253. Supply systems for incandescent lamps. METALLWERK A. SCHWARZ GES. Feb. 5, 1936, No. 3503. Convention date, Feb. 5, 1935. [Class 38 (iv)] Switching control.-In a cycle lighting set with a head lamp bulb 1 supplied from the dynamo 9, a bulb 3 of lower voltage may be supplied from the battery 15 when parking, or may be connected to the dynamo 9 in parallel with a resistance 13 when it is used as a non-dazzle lamp. The several adjustments are effected by a switch having a transverse arm 4 rotatable about its centre.
Patent GB-206426-A (GB)
Title: Improvements in and relating to horse shoes
IPC: A01L7/00
Filed: 1923-02-06
Abstract: 206,426. Bull, H. A. Feb. 6, 1923. No Patent granted (Sealing fee not paid). Renewable calks and treads; slotted to facilitate bending.-A tread 5 of rubber or other shockabsorbing material is secured to a shoe member 1 by means of hook tongues 4 on the shoe member which engage correspondingly shaped parts 5<a> on the inner periphery of the tread 5 and by screws or studs 11 passed through the tread into threaded holes 7 in the shoe member 1. For a portion of its width the shoe tapers towards the inner periphery. Fig. 5 shows the tread secured by screws 11 the heads of which are formed with calks 12 on one side of a diameter Fig. 10 shows a toe piece 14 with a flange 15 to protect the tread. Slots 16 facilitate bending to shape and the toe piece is secured by the screws 11 passing through holes 15<a>. To enable the shoe to be bent to shape a semi-circular cut 2 is made in the inner periphery of the shoe. The tread may be reinforced with metal plates 9 which act as bearing surfaces for the fixing screws and by other means such as cording &c.
Patent GB-1132266-A (GB)
Title: Improvements in and relating to the manufacture of sulphuric acid
IPC: C01B17/90
Filed: 1966-01-26
Abstract: 1,132,266. Sulphuric acid, nitrosyl sulphuric acid. CHEMIEBAU DR. A. ZIEREN G.m.b.H 26 Jan., 1966 [26 Jan., 1965], No. 3521/66. Heading C1A. H 2 SO 4  is made by a contact process wherein the gases resulting from the contact oxidation are absorbed or condensed in an amount of a nitrogen oxide such that the product is nitrosyl sulphuric acid having a concentration of 5-5000 mg /kg. of H 2 SO 4 . The nitrogen oxide, e.g. NO, can be contained in the SO 2  gases entering the contact process, or produced from nitrogen-hydrogen compounds during the contact oxidation or from HNO 3  added at the absorption or condensation stage. If desired, the H 2 S0 4  produced can be denitrogenated with urea or aminosulphonic acid or decoloured by adding H 2 0 2 .
Patent GB-690916-A (GB)
Title: Method and apparatus for the electrochemical treating of slide operated fasteners or other bands of separate elements, and products resulting therefrom
IPC: C25D7/02
Filed: 1952-02-11
Abstract: 690,916. Electrolytic treatment of sliding clasp fasteners and the like. RHONDDA PLATING WORKS, Ltd. Feb. 11, 1952, No. 3532/62. Class 41. Metal articles attached to a flexible non- conducting carrier A, Fig. 1, such as sliding clasp fastener elements attached to a carrier tape, are treated electrolytically, e.g. for plating, pickling, polishing or anodizing by passage in a bath across the convex metallic surface of a body 2 connected to the appropriate terminal and then across the convex metallic surface of a body 3 similarly connected but oppositely disposed so that opposite sides of the articles bear against the surfaces of the bodies 2 and 3 respectively. Curved electrodes 2a, 3a of opposite polarity to the bodies 2, 3 are arranged parallel thereto. Parts of the bodies 2, 3 or of the electrodes 2a, 3a, other than the convex and concave surfaces respectively need not be of metal. Further pairs of convex members such as 4, 5 and counterelectrodes 4a, 5a may be provided. The carrier A is introduced over rollers 13, 13a and leaves by rollers 14, 14a which may be driven through gearing outside the tank; the rollers 13, 13a may be braked. In passing over the curved surfaces the outer sides of fastener elements are fanned out and the inner sides of adjacent elements brought into contact, thereby permitting ingress of electrolyte to the spaces between the elements. A pair of tapes may be passed through the apparatus with their fastener elements interlocked. In a modification, Fig. 3, the fixed bodies 2, 3, &c. are replaced by staggered rotatable drums 18, 19, &c., which may be positively driven preferably at a different tangential speed to that of the tapes or may be idling in which case they are preferably braked so as to cause slipping of the tapes. Contact with the drums is made at one end thereof by an endless metallic band 27 passing over the rollers 13a and 14 and also over a roller 26 connected by a brush 25 to one terminal of the electric supply. The bodies 2, 3, &c. of Fig. 1, or the drums 18, 19, &c. of Fig. 3, may carry spaced strips or rings of insulating material forming parallel grooves with conducting bases in which a number of carriers A may be accommodated.
Patent GB-951925-A (GB)
Title: Synchronization arrangement for change-speed transmissions
IPC: F16D23/06
Filed: 1963-01-29
Abstract: 951,925. Positive clutches. F. A. E. PORSCHE. Jan. 29, 1963 [Feb. 21, 1962], No. 3554/63. Heading F2C. A split spring synchronizer ring is of substantially constant cross section and of oval form with the major diameter perpendicular to the diameter passing through the slot. The invention is described as applied to a Porsche type split ring synchronizer mechanism for a change speed gear, the mechanism being of either the single ring type or the servo-assisted ring type. The split ring may have its friction surface coated with a wear resistant layer, for example by flame spraying with molybdenum. The ring may be rolled from wire of suitable cross-section pressed to the desired oval shape, or may be machined from the solid.
Patent GB-1064554-A (GB)
Title: Metallized sheet electrodes
IPC: H01M4/86
Filed: 1963-12-19
Abstract: 1,064,554. Fuel cells. AMERICAN CYANAMID CO. Dec. 19, 1962 [Dec. 26, 1962; July 1, 1963], No. 3559/66. Divided out of 1,036,513. Heading H1B. [Also in Division D2] An electrode suitable for use in a fuel cell comprises: (a) 20% to 60% of a fibrous support; (b) 1% to 5% of a water-repellent compound; (c) 1% to 25% of a metallic catalyst; and (d) 25% to 50% of an electrically conductive non- catalytic filler, the percentages being by weight of the electrode. The catalyst is a substance that is catalytically active for electrochemical redox reactions. The term "non-catalytic " refers to materials that do not catalyse such reactions. The fibrous support may be an unfused fibrillated paper or a mixture of fibrillated and unfibrillated fibres, and may be of a copolymer of 85% to 90% of acrylonitrile with 10% to 15% of methyl methacrylate or of glass fibres, metal fibres or asbestos and polyvinyl alcohol fibres. The water-repellent compound may be polytetrafluorethylene, a styrene - butadiene copolymer, polyethylene, neoprene or a silicone rubber. The catalyst may be platinum, palladium or ruthenium. The non-catalytic filler may be carbon, titanium, tantalum, zirconium, iron, cobalt, nickel, copper, silver or gold. A composite sheet can be made comprising an inner hydrophilic, non-catalytic, fibrous layer and outer electrode layers by pressing the layers together and drying. These electrodes may be used in fuel cells otherwise similar to those of the parent Specification.
Patent GB-636174-A (GB)
Title: A process for manufacturing pre-stressed reinforced concrete members
IPC: B28B23/12
Filed: 1946-02-05
Abstract: 636,174. Pre-stressed reinforced concrete. FREYSSINET, E. Feb. 5, 1946, No. 3632. Convention date, May 15, 1945. [Class 20 (iv)] In a pre-stressed re-inforced concrete member, before the main body of the concrete is cast, the main re-inforcements are stretched and anchored in members which are pre-compressed by pre-tensioned transverse auxiliary re-inforcements. The main reinforcements may be anchored in transversely prestressed concrete masses or, as shown in Figs. 2, 4, 6, between pre-formed elements which form the ends of sleepers made simultaneously in a line on a long work bench. Twelve tensioned main wire re-inforcements 1-3, 1<SP>1</SP>-3<SP>1</SP> and 11-13 (other three not shown) are placed between hardened concrete press heads 4, 41 connected by auxiliary loop wire re-inforcements 5 which also pass through intermediate additionally re-inforced concrete elements 6, 61. The main reinforcements are anchored by driving concrete wedges 7, 71, 711 between the elements 4 and 6 &c. The wedges at the ends of adjacent sleepers may be driven in simultaneously (Fig. 6) inserted rubber or steel parts 8 then being removed to enable the reinforcements to be cut between the sleepers. Concrete is then cast in the spaces 35 (Fig. 2) between the elements 4, 6 &c. after which the main portion of the sleeper is cast around the anchored re-inforcements. Fig. 5 shows alternative wedging means comprising a wedge 14 driven between counter wedges 15, 16, friction being reduced by greased metal surfaces 31. The elements 4, 6, 7 &c. have wire-receiving grooves (Fig. 2) slightly smaller than the wires and coated with varnishes containing abrasives to improve the anchoring. Also, hardened and knurled metal channels may be placed between the wires and the concrete elements. Specification 453,555 is referred to. The Specification as open to inspection under Sect. 91 describes also wedges 7 made of steel, cast iron or glass. Specifications 338,864, [Class 20 (iv)], and 364,621, [Group V], also are referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-762982-A (GB)
Title: Improvements relating to the melting of silicon
Inventor: WAKEFIELD JAMES
IPC: C01B33/02
Filed: 1954-02-08
Abstract: <PICT:0762982/III/1> <PICT:0762982/III/2> In the zone refining of silicon by means of high frequency induction heating, the silicon is preheated, e.g. to 500 DEG C. or above, by passing an electric current through the silicon.  When the induction heating becomes effective, the preheating may be terminated or reduced.  As shown an ingot of silicon is clamped between two electrodes 2a and 2b which are preferably water cooled and of stainless steel.  The electrodes are connected by a bridge 3 and insulator 4 and are movable vertically.  Surrounding the ingot is a watercooled induction heating coil 5 and a heat concentrator in the form of a hollow cylinder 7 of magnetic material having an internal flange 8 and radial slit 10 (Fig. 2). The concentrator is preferably water cooled.  The ingot is enclosed in a container 11, e.g. of borosilicate glass having an opening for evacuating the container or supplying inert gas thereto. The apparatus may also be used for fusing together two pieces of silicon, especially for fusing a mono-crystal seed to a polycrystalline ingot in order to grow a single crystal.
Patent GB-766333-A (GB)
Title: Manufacture of combustible gas
Inventor: WILLIAMS NORMAN HENRY
IPC: C10G9/00
Filed: 1954-02-08
Abstract: 766,333. Oil-gas. HUMPHREYS & GLASGOW, Ltd. Jan. 7, 1955 [Feb. 8, 1954], No. 3678/54. Class 55 (2). In a cyclic process for making combustible gas from fluid hydrocarbons, the hot products from the gas-making chamber 14 in the gasmaking phase are passed through each of two heat regenerators 10 and 12 alternately, gasefication medium being passed to the gas-making chamber through that one of the regenerators 10 and 12 which is not at the time being traversed by the gas-making products, the arrangement being such that during the plantheating phase the heating gases do not pass through the regenerators 10 and 12. In the apparatus shown there is also provided two airpreheating regenerators 11 and 13 and during a plant heating phase one of these regenerators is being traversed by air used in reheating the gas-making chamber 14 while the other is being traversed by the hot combustion products from the chamber 14. The chamber 14 is provided with a catalyst contact mass and oil is sprayed over the upper surface of the mass from a spray 16. Supplementary heating means are provided in the bottom of regenerators 11 and 13 and heavy fuel oil or tar may be burnt therein. In a modified apparatus an indirect heatexchanger replaces the two air-preheating regenerators. Specification 756,386 is referred to.
Patent GB-539155-A (GB)
Title: Improvements in or relating to the production of cellulose esters
IPC: C08B3/28
Filed: 1940-02-28
Abstract: 539,155. Cellulose esters. BRITISH CELANESE, Ltd. Feb. 28, 1940, No. 3703. Convention date, Feb. 28, 1939. [Class 2 (ii)] An organic solvent diluent is added to a primary esterification solution of a cellulose ester, e.g. cellulose acetate, propionate, or butyrate, of high acyl value and the cellulose ester is then precipitated from the solution before any substantial hydrolysis has occurred. The solvent diluent is preferably one which has a boiling point lower than that of the solvent employed in the primary solution in which the cellulose ester is prepared. It may be methyl or ethyl acetate or other lower alkyl acetate, or a mixture of such an ester with alcohol, with acetone, or with alcohol and acetone, or it may be a cyclic oxide or ether such as dioxane or ethylene formal. The solvent diluent is preferably water-soluble so that it may be readily washed away from the precipitated cellulose ester. The process results in an improvement in the solubility properties of the cellulose ester obtained. The amount of solvent diluent used is preferably at least equal in weight to that of the primary solution. The catalyst used in the esterification is preferably sulphuric acid in an amount of 16-30 per cent based on the weight of cellulose. After the solvent diluent has been added, the catalyst may be neutralized by adding sodium acetate or bicarbonate or magnesium acetate or carbonate or other salt capable of forming a sulphate which is insoluble in acetic acid but soluble in aqueous acetic acid. The process may be used to obtain cellulose acetate of acetyl value 59-61.9 per cent which is completely soluble in acetone. The cellulose acetate of high acetyl value obtained by the process is more stable to delustring than cellulose acetate of lower value and it has a lower moisture regain. Films made from it have a greater resistance to blushing, distortion, and cockling. In an example, a primary esterification solution containing cellulose acetate dissolved in glacial acetic acid is diluted with methyl acetate. The cellulose acetate is then precipitated with water at 30‹C., washed and dried. The product is soluble in chloroform, acetone, and ethylene formal in which latter solvent is has a Staudinger viscosity of 0.7. The method of determining the Staudinger viscosity is described.