baber/WOPTO huggingface dataset:
Patent GB-558007-A (GB)
Title: Improvements in abrasive tools and method of making same
IPC: B24D3/08
Filed: 1942-04-10
Abstract: 558,007. Abrasive tools. ALNCIN, Inc. April 10, 1942, No. 4763. Convention date June 17, 1941. Drawings to Specification. [Class 60] Abrasive tools are made by applying abrasive granules in a definite distribution to the surface of sheet metal of a nature that is softened at a temperature less than the fusing temperature, forming the sheet metal into a laminated assembly with the granules between adjacent surfaces and subjecting the structure to a temperature sufficient to cause the softened metal to enclose the granules under low pressure, the structure being subsequently tempered. A carbon steel or a copper base or copper aluminium alloy, e.g. 89 per cent. copper, 10 per cent. aluminium, 1 per cent. iron, may be used as the metal which may be in the form of a continuous coiled strip or of laminae in face to face relationship. The granules may be temporarily held in place by a coating of lauryl alcohol. Specification 542,975 is referred to.
Patent GB-938749-A (GB)
Title: Improvements in or relating to liquid fuel dispensing apparatus
Inventor: SPALDING ROBERT GEORGE
IPC: B67D7/22
Filed: 1961-02-08
Abstract: 938,749. Dispensing petrol. WAYNE TANK & PUMP CO. Ltd. Feb. 5, 1962 [Feb. 8, 1961], No. 4774/61. Class 116. [Also in Group XIX] The forecourt of a petrol-filling station is arranged with the pumps underground controlled by switches on the nozzles. The hoses are arranged in pairs on low units 1 while there is a combined volume, total cost, priceper-gallon and grade indicator for each unit 1 in a combined register 5 at a further point in the forecourt. The volume and total cost indicators are driven by step-by-step motors from relatively high-speed transmitter generators adjacent the underground pumps. Reference is made to Specifications 458,208, 938,747 and 938,748 in respect of details.
Patent GB-1305212-A (GB)
IPC: D21H13/14
Filed: 1970-02-02
Abstract: 1305212 Paper MONTECATINI EDISON SpA 2 Feb 1970 [4 Feb 1969 (3)] 4811/70 Heading D2B Paper comprises 1 to 60% by weight of fibres of polypropylene having a length not more than 20 mm. and a count not more than 2.5 dtex, 35% to 99% of fibres of cellulose, and a polymeric binding agent. The polypropylene may be an isotactic homopolymer, or a copolymer. The polypropylene fibres may comprise a central body and a coating, of which one is a propylene polymer and the other either a different propylene polymer or a polymer of another monomer or monomers. The polypropylene fibres may be made by spinning through holes of circular or non- circular cross-section, or by fibrillation of films. The cellulosic fibres may be of wood pulp, cotton linters or regenerated cellulose. The polymeric binders may be amorphous (possibly modified) polypropylene or a condensation polymer of epichlorohydrin and one or more amines. The paper may be calendered and may be used for book covers, lining paper, gasket paper, cardboards, filter papers, map paper, table cloths and napkins, packing or wrapping paper, hygienic uses, laminates and felts.
Patent GB-1461943-A (GB)
Title: Semi-conductor devices
IPC: H01L21/76
Filed: 1974-02-01
Abstract: 1461943 Semi-conductor devices RAYTHEON CO 1 Feb 1974 [21 Feb 1973] 4821/74 Heading H1K Adjacent elements in a semi-conductor integrated circuit are isolated by removing Si from grooves 16 extending through a semiconductor Si layer 12 supported on a substrate 10, chemically reacting the walls of the grooves to form an insulating layer 26, depositing over the surface further insulating material 29 at temperatures not exceeding 1200� C. so as to fill the grooves, removing the further insulating material 29 down to the surface so as to leave the grooves filled and to form a flat continuous surface, and forming over the continuous surface a pattern of mutually insulated conductors 48 insulated from the surface by an intervening insulating layer 30 except at apertures through this layer where the conductors make contact with regions of the semi-conductor elements. All steps subsequent to, and including, the deposition of the further insulating material 29 are performed at temperatures not exceeding 1200� C., and preferably at below the plasticity temperature of Si, which is stated to be about 1050� C. P-type Si substrate 10 has an epitaxial layer 12 formed thereon in which the required semi-conductor elements, e.g. transistors and resistors, are formed. By appropriate selection of the crystallographic orientation of the Si body, V-shaped grooves 16 are anisotropically etched through the epitaxial layer 12. A multilayer insulating region is formed over the body 10, comprising a first low-impurity silicon dioxide layer 26 formed by thermal oxidation at 700-1100� C. and 300-3000 Angstroms thick, a second layer 28 of silicon nitride 1500 Angstroms thick and a layer 29 of high impurity silicon dioxide at least one micron thicker than the depth of the grooves 16. This layer 29 is formed by chemical vapour deposition at 300-1000� C. from an atmosphere of phosphene or diborane and silane in a carrier and an oxygen source. The resultant silicon dioxide deposit has an impurity concentration of 1- 50% enabling it to be heated to its softening point to flow evenly across the wafer surface without exceeding 1050� C. The wafer is then etched to remove layer 29 down to the nitride layer 28, but leaving the grooves 16 filled with material 29. Conventional techniques are then employed to form the respective electrode connections over further apertured insulating layer 30. The method may be employed in fabricating the integrated circuit memory cell arrangement described in Specification 1,383,893.
Patent GB-1012817-A (GB)
Title: Production of acrylate esters
Inventor: YEOMANS BERTRAM
IPC: C07C69/54
Filed: 1963-02-07
Abstract: Higher acrylate esters are produced by reacting at elevated temperatures a lower acrylate ester and a higher alcohol in the presence of an alkoxy derivative of titanium as catalyst, hydrolysing the catalyst in the product mixture in the presence of an organic base at elevated temperatures, separating the titania produced, and recovering the higher acrylate ester by distillation.  The lower acrylate ester is preferably methyl or ethyl acrylate and the higher alcohol an acyclic, alicyclic or aromatic alcohol having from 3 to 20 carbon atoms.  The alcoholysis may take place at the reflux temperature.  The base may be an alkali metal alkoxide, or a primary, secondary or tertiary amine, e.g. sodium ethoxide, quinoline and methylene blue.  The hydrolysis may be carried out at a temperature from 100 DEG  to 300 DEG  C. and a small amount of mineral acid may also be added during the hydrolysis, e.g. phosphoric acid.
Patent GB-737697-A (GB)
Title: Hardenable resinous compositions containing glycidyl ethers and hard resinous products prepared therefrom
IPC: C08L63/00
Filed: 1953-02-23
Abstract: A synthetic resinous composition comprises a glycidyl ether of a polyhydric phenol having an average of more than one epoxy group per molecule, and an epoxidized ester of a drying oil fatty acid. The glycidyl ethers may be as described in Specifications 680,997, 681,001 or 681,991 or in German Specification 676,117.  The epoxidized esters may be prepared as described in U.S.A. Specifications 2,485,160 or 2,569,502.  The epoxidized esters may be epoxidized drying oils, but the drying oil fatty acids may be esterified with mono-, di-, tri- or higher polyhydric alcohols other than glycerol.  The compositions may be hardened with known hardening agents, e.g. polybasic acids, e.g. citric or phosphoric, their partial esters, polyamines, aromatic sulphonic acids and complexes of boron trifluoride.  If both components of the mixture are liquid, simple mixing suffices.  With a solid component, heating, e.g. on a heated roller mill, may facilitate mixing.  Solvents may be added, as well as conventional additives, e.g. fillers, pigments, dyes, plasticizers or other resins or resin-forming materials.  All the examples employ glycidyl ethers of bis-(4-hydroxyphenyl)-2,2-propane. Example 1 describes a number of coating compositions containing this glycidyl ether mixed with epoxidized soybean oil and dissolved in mixtures of toluene and the acetate of the monoethyl ether of ethylene glycol, or in mixtures of xylene, acetone and the acetate of the monoethyl ether of ethylene glycol.  Citric acid, orthophosphoric acid or a complex of p-cresol and boron trifluoride is used as hardening agent.  Example 2 describes an adhesive mixture of the same resins with asbestos fibres as a filler and N,N-diethyl-1,3-propane diamine as hardener.  In example 3 the homogeneity and inherent strength of mixtures hardened with tri - (dimethylaminomethyl) - phenol tri - (2-ethylhexoate) was demonstrated.  Specification 717,928 also is referred to.
Patent GB-546742-A (GB)
Title: Improvements in or relating to caps for chimney pots and ventilator terminals
IPC: F23L17/02
Filed: 1941-12-30
Abstract: 546,742. Chimney &c. tops. HURDEN, E., and SNELLING, J. C. Dec. 30, 1941, No. 5062/42. Divided out of 546,714. [Class 25] A chimney pot or ventilating shaft terminal is provided with a neck D to receive an annular downward projection H of a cap F having a laterally projecting part in the underside of which are provided arcuate openings G. Specification 467,613 is referred to.
Patent GB-1001903-A (GB)
Title: Improvements in or relating to automatic telecommunication exchanges
Inventor: KNIGHT RONALD GEORGE
IPC: H04Q11/04
Filed: 1962-07-19
Abstract: 1,001,903. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. July 12, 1963 [July 19, 1962], No. 5100/65. Divided out of 1,001,902. Drawings to Specification. Heading H4K. In a time division multiplex switching system a broad-band connection may be set up by using more than one pulse position in the multiplex cycle, the pulse positions used being as nearly equally spaced as possible. In the case in which subscribers have fixed pulse positions, a broad-band subscriber has two or more such positions permanently allocated to it and connections using these positions are set up independently. In the case where pulses are allocated only during the call, a broad-band subscriber sends a class of service signal to the control circuit, which acts thereupon to allot a plurality of free pulse positions, as nearly equally spaced as possible, to the call.
Patent GB-1141093-A (GB)
Title: Improvements in or relating to endless-belt conveyors
IPC: B65G21/04
Filed: 1966-02-04
Abstract: 1,141,093. Endless conveyers. PRECISMECA S.A. 4 Feb., 1966 [4 Feb., 1965 (2); 5 Feb., 1965; 7 Jan., 1966], No. 5106/66. Heading B8A. A framework for the supporting rollers of an endless belt conveyer includes lugs 428, 429 for securing cable side frames 434, 435, apertured brackets 426, 427 for attachment of the conveyer, by ropes, chains &c., to overhead supports (not shown), and footings 423, 424 for anchoring the conveyer to foundations or directly on the ground. Rollers 413, 414 for the return run of the belt are supported in brackets which have slots (420), Fig. 3 (not shown), to allow adjustment of the rollers longitudinally of the conveyer. In Fig. 1, a channel section member 320 of an upper roller assembly includes pairs of apertures 322 1 -322 3  for the attachment of suspension means to a cradle 305. The rollers 302 have their outer ends offset in supports 303 to ensure belt centring. In a further modification, Figs. 4, 5 (not shown), the height of the upper roller assembly is adjustable by varying the position on a vertical member (441) at which the frame cable (435) is secured.
Patent GB-546102-A (GB)
Title: Improvements in or relating to life saving side nets for ships
IPC: B63B27/14
Filed: 1941-04-23
Abstract: 546,102. Life saving nets for ships. SCRUTTON, A. W. April 23, 1941, No. 5217. [Class 20 (ii] A life saving multiple upright flexible ladder or scrambling-net for use on ships comprises rungs 16 threaded by ropes 14 forming the wefts, the ends of the rungs being perforated to receive ropes 15 forming the warps so that the rungs are prevented from turning and displacement when grasped. The ropes 15 are knotted below each rung and the net may be suspended from a ship's side ropes 13.
Patent GB-1219817-A (GB)
Title: Arrangement for forming the quotient of two frequencies
IPC: G01R23/00
Filed: 1968-02-01
Abstract: 1,219,817. Comparing frequencies. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 1 Feb., 1968 [4 Feb., 1967], No. 5251/68. Heading G4A. A frequency f 1  is divided by a higher frequency f 2  to give a number of denominational digits. Pulses f 1  are fed direct to the upper input of a flip-flop F and delayed in a shift register V for B pulses of f 2  before application as pulses f IV  to the lower input of F. The upper and lower inputs and outputs, respectively, of F feed AND gates G 1 , G 2  leading to forward and reverse inputs of a radix B counter DZ feeding a meter A which indicates the first denominational digit Z 1 . The phase difference between f 1  and f IV  appears at the upper output of F as a square wave and is combined at G 3  with f 2 <SP>1</SP>, resulting from division of f 2  by B. The output of G 3  acts as an input f 1 <SP>1</SP> to a further stage for comparison with f 2 <SP>1</SP> to give the next denominational digit. Any radix may be used but the binary code gives a rapid result in the case of fluctuating frequencies.
Patent GB-1596063-A (GB)
Title: Brake valve
IPC: B60T11/18
Filed: 1978-02-09
Abstract: The brake valve, actuable by way of a tappet, is equipped with a preloaded spring (10) which is supported on a piston (4) and a displaceable spring plate (8). The spring plate (8) has a central funnel-shaped recess (16), the lower terminating surface (18) of which is of spherical design. In this recess (16) a tappet (20), connected so that it is directly rotatable with the brake operating pedal, is arranged, the end face (22) of which is designed to be complementary to the surface (18) of the recess (16). The tappet (20) is thereby capable of moving in three dimensions. This also results in a smaller overall length and reduced valve wear. <IMAGE>
Patent GB-892090-A (GB)
Title: Improvements in thermal regenerators composed of wire coils
IPC: F28D17/02
Filed: 1960-02-15
Abstract: 892,090. Thermal regenerators. SAURER Ltd., ADOLPH. Feb. 15, 1960 [April 9, 1959], No. 5273/60. Class 64(1) Heat transfer material in a thermal regenerator consists of wire coils so packed that their centres lie on the vertices of a lattice of regular hexagons or squares, and the wire diameter, mean coil diameter and pitch of the coils are such that the material volume of each coil occupies at least one hundredth part and at most two tenths of the space occupied by each turn, defined as the space within a circumscribed prism with hexagonal or quadrilateral base (depending on how the coils are packed) and a height corresponding to the pitch of the coil. Preferably the mean coil diameter is at least four times greater than the wire diameter and the mean coil diameter and pitch of the coils are at least approximately of equal dimension.
Patent GB-882599-A (GB)
Title: An improved combined hand-trolley and step-ladder
IPC: B62B1/10
Filed: 1957-02-15
Abstract: 882,599. Hand trucks. SIEDER, J. S. Feb. 14, 1958 [Feb. 15, 1957], No. 5288/57. Class 108(1). A hand truck has side frames 10 bolted to a stiffened toe plate 16, a U-shaped handle 11 joining the side frames, and step treads 21 provided as shown between the side frames, so that when the front of the toe plate is tipped to touch the ground the truck may be used as a step ladder.
Patent GB-930256-A (GB)
Title: Stabilization of polyvinyl chloride
IPC: C08K5/21
Filed: 1962-02-12
Abstract: Polyvinyl chloride is stabilized by a mixture of a urea and an aminocrotonic acid ester.  Preferred ureas are urea, N,N-dimethylurea and thiourea.  The preferred acid esters are methyl, ethyl, isopropyl, butyl, octyl and dodecyl aminocrotonate. Each of the substances may be added in an amount of from 0,02 to 2% by weight of the mixture.  The preferred ratio of ester/urea is 1:2.  Other ingredients may be added.
Patent GB-1067362-A (GB)
Title: Improvements in and relating to high compression pumps and compressors
Inventor: GRANVILLE JOHN JUERGEN
IPC: F04B39/04
Filed: 1964-02-10
Abstract: 1,067,362. Pistons. IMPERIAL CHEMICAL INDUSTRIES Ltd. Jan. 27, 1965 [Feb. 10, 1964], No. 5435/64. Heading F2T. In a high-pressure pump or compressor the part 4 of the piston carrying the piston rings 8 is either wholly separated from the main part 12 of the piston or connected therewith by means, e.g. an enlarged abutment on one fitting loosely fitted in a slot in the other, permitting relative lateral movement and/or misalignment between the two parts. The piston ring assembly is clamped between guide bushes 5 and 6 which may be of cast iron and the part 12 has an end compression pad 13 which may be of beryllium copper.
Patent GB-969835-A (GB)
Title: Self-propelled hillside cultivator
IPC: A01B33/02
Filed: 1963-02-11
Abstract: 969,835. Change speed gear; differential gear. ERCOLE S.p.A. Feb. 11, 1963 [Dec. 5, 1962], No. 5450/63. Heading F2D. [Also in Division B7] A change speed gear for a walk-type tractor (see also Division B7) comprises an input shaft 28 on which are fixed gears 36, 37, 38 and 39, the gears 36, 39 permanently mesh gears 40, 43 freely rotatable on and selectively clutched at 42a, 44a to an output shaft 29 whilst the gears 37, 38 are selectively meshed with sliding gears 41, 42. The shaft 29 drives the crown wheel 46 of a bevel differential gear 47 . . . 51. The differential may be locked by device 52 (Fig. 6) which locks planet carrier 47 to shaft 30. Reverse speed is provided by moving gear 45 into mesh with gears 37 and 42. Power takeoff shaft 22 is engaged by sliding clutch member 35 into engagement with teeth 35a on shaft 28. Shaft 18 of implement 16 is driven through worm-wheel 126, shaft 123, bench gears 121, 122 and ratchet clutch 119, 101 which prevents rotation of implement 16 when reverse gear is engaged, from shaft 96 which may be driven from either shaft 29 through face clutch teeth 98a, 44b or from shaft 28 through clutch 35 and gears 98, 99.
Patent GB-588773-A (GB)
Title: Improvements in or relating to conveyors and elevators
IPC: B65G19/16
Filed: 1945-03-05
Abstract: 588,773. En - masse type conveyers. REDLER, A. March 5, 1945, No. 5473. [Class 78 (i)] In a conveyer of the en-masse type each trailing flight member is held against outward swinging as it moves around a pinion or the like. In Fig. 1, each flight member pivotally attached to tension member 26 is provided with stop portion 35 which abuts against tension member and so limits its swing as it passes the discharge opening 40. The tendency to swing out as the flight member passes over the sprocket is checked by bosses 39 formed on sprocket 21 and which engage the surfaces 38. The conveyer may be horizontal and the top flight may be restricted in capacity at the intake by providing a rectangular block situated on the floor within the cut-away portion 29. Guides 40a may prevent this outward swing of flight member through opening 40. The stop member may be a lug located on the tension member. The angular movement of Sight member may also be limited by suitable shaping of attachment pivot. If the material of the flight member is resilient these members may be split to enable them to be sprung open and passed over the tension member. They may also be made with a part which is removable to permit assembly for example when the material of manufacture is synthetic resin or like material. In the Provisional Specification it is stated that the flight member may be made of cast iron. Specification 537,959 is referred to.
Patent GB-117442-A (GB)
Title: Ball Holders for Ball Bearings.
Inventor: LINDMAN KONRAD WERNER
IPC: F16C33/40
Filed: 1918-03-28
Abstract: 117,442. Lindman, K. W. July 11, 1917. [Convention date]. Ball bearings. - A spacing-cage for ball bearings comprises a number of projections 5 stamped from a metal ring 4 and bent radially into the spaces between the b a l l s 3. Spherical recesses or perforations 6 are formed at the points of contact with the balls. Curved tongues 7, Fig. 3, also engage the balls to retain them in the cage. With two rows of balls, the projections 5 on both sides of the ring 4 are staggered as shown.
Patent GB-399149-A (GB)
Title: Improvements in needles and like devices
IPC: D05B85/00
Filed: 1932-02-24
Abstract: 399,149. Sewing-needles. HARMAN, P. J., Colwyn, Astwood Bank, Redditch, Worcestershire. Feb. 24, 1932, No. 5506. [Class 112.] Surgical needles 1 have a bored tapped end 2, the ligature 3 being secured to the needle by screwing it into the end. The ligature forms its own threads as it is screwed in. If the ligature is soft or pulpy, it is placed in the bored end of a member 5 which is then deformed to clamp it. This member is then screwed into the needle, a threaded end 6 being provided on it for this purpose. Specification 177,070, [Class 112, Sewing &c.], is referred to.
Patent GB-1047054-A (GB)
Title: Derivatives of dithiocarbamic acids and their use as fungicides
IPC: C07C333/16
Filed: 1964-02-10
Abstract: Dithicarbamic acid derivatives are obtained by the addition of a solution of at least one soluble salt of zinc, iron or manganese to a solution containing a mixture of a soluble alkali metal or ammonium salt of ethylenebis-dithiocarbamic acid and a soluble alkali metal or ammonium salt of dimethyldithiocarbamic acid. Preferably the dimethyldithiocarbamate to ethylene-bisdithiocarbamate is used in a weight ratio of 21 to 79. The products are precipitated and are apparently mixed salts.ALSO:A mixed salt precipitated by adding a solution of at least one soluble salt of zinc, iron or manganese to a solution containing a mixture of a soluble alkali metal or ammonium salt of ethylene bis-dithiocarbamic acid and a soluble alkali metal or ammonium salt of dimethyldithiocarbamic acid, is used in fungicidal compositions.  The fungicidal composition may be applied in the form of a powder or as a solution or dispersion in water or an organic solvent.
Patent GB-1128895-A (GB)
Title: Improvements in or relating to bearings for movable members
IPC: F16C32/06
Filed: 1966-02-08
Abstract: 1,128,895. Bearings. MECANORGA S.A. 8 Feb., 1966 [8 Feb., 1965], No. 5545/66. Heading F2A. [Also in Division G3] A fluid bearing comprises two relatively movable members, one having chambers 4, 5, 17, 18 fed by pressurized fluid, and a pneumatic control system which controls the relative position of the members by controlling the flow of fluid to said chambers, the pneumatic control system having an air source 28 separate from the fluid source 15 supplying the chambers. In Fig. 1, fluid from sump 15 is supplied to bush pressure chambers 4, 5 direct and to bush pressure chambers 17, 18 via piston valve 21. Air from source 28 is supplied via nozzles 24, 25 to nozzles 26, 27, and to end surfaces of valve head 21. On movement of the shaft along the diametral line joining nozzles 26, 27, changes of air pressure displace the head and thus adjust the pressure in chambers 17, 18 to return the shaft in a central position with respect to the bush. In Fig. 2 (not shown), a single pair of nozzles (25, 27) is used.
Patent GB-107951-A (GB)
Title: Improved Cementing Material and the Manufacture of Substances or Compositions therefrom.
Inventor: KELLY THOMAS DANIEL
IPC: C04B28/26
Filed: 1917-04-21
Abstract: 107,951. Kelly, T. D. April 21, 1917. Concretes; cements, Portland, treating after manufacture.-Hydrated Portland cement, preferably 100-300 parts, is mixed with 5-30 parts of water glass and 5-10 parts of an adhesive liquid insoluble in water, and which is not readily saponified such as oxidized or polymerized oil with or without a filler. The resulting cement may be moulded or may be used like asphalt over large areas by rolling and smoothing by means of sliding irons and may be reinforced with steel bars, wires &c. Heat accelerates setting.