baber/WOPTO huggingface dataset:
Patent GB-536720-A (GB)
Title: Improvements in or relating to television and like receiving systems
IPC: H01J29/14
Filed: 1939-06-01
Abstract: 536,720. Television ; cathode-ray apparatus. SCOPHONY, Ltd., and ROSENTHAL, A. H. June 1, 1939, No. 16141. Addition to 513,776. [Classes 39 (i) and 40 (iii)] An alkali halide or like screen 1 on which an image is produced by a cathode-ray tube as described in Specification 513,776, is moved through four successive stations I, II, III, IV, Fig. 2. At station I, an image is formed by the electron beam; at station II the image is in the optical path of an image projector 6 ... 10, Fig. 1, and produces a visible image on a viewing screen 11 ; at station III the image is destroyed by a heating coil ,13 which evaporates the salt layer of the screen; at station IV a fresh layer is applied ; and again at position I a fresh image is formed by the electron beam. The screen may be in the form of a disc or belt, and may be moved continuously or in steps by any suitable means, for example by a synchronous motor, or an electromagnetic system acting on members mechanically connected to the screen, or by the mechanical action of the cathode ray beam on wing extensions on the screen during the synchronizing intervals.
Patent GB-1428197-A (GB)
Title: Polyamides
IPC: C08G69/26
Filed: 1973-04-04
Abstract: 1428197 Transparent polyamides HOECHST AG 4 April 1973 [5 April 1972] 16145/73 Heading C3R Transparent polyamides have the formula wherein 5 to 90%, randomly distributed, of the R 1  radicals are C 4-20  straight chain aliphatic radicals and the remainder are xylylene, 0 to 50% being para- and 50 to 100% meta-; 10 to 90% of the R 2  radicals are saturated aliphatic radicals and the remainder aromatic radicals; R 3  is H or -OC-R 2 -COOH; R 4  is -OH or -NH-R 1 -NH 2 ; and x indicates a degree of polymerization corresponding to a reduced specific viscosity of 1 to 2À5 dl./g. (1 g./100 ml. in 60/40 phenol/tetrachloroethane at 25‹ C.). They may be prepared by condensing the appropriate diamines and diacids, or equivalent derivatives, e.g. in an autoclave; the higher molecular weight product may be obtained by further condensation, e.g. in a double-screw extruder under reduced pressure. A number of suitable reactants are mentioned the following being used in specific examples: m-xylylene diamine; hexa- or dodeca-methylene diamine; terephthalic acid or 4,4<SP>1</SP>-diphenyl sulphone dicarboxylic acid and/or isophthalic acid; and adipic or 1,10-decane dicarboxylic acid.
Patent GB-1188277-A (GB)
Title: Nickel-Silver Alloys
Inventor: HELLIWELL BRIAN JOHN
IPC: C22C9/06
Filed: 1969-03-27
Abstract: 1,188,277. Cu-Zn alloys. INTERNATIONAL NICKEL Ltd. March 27, 1969, No.16175/69. Heading C7A. An alloy useful for spectacle frame hinges consists, by weight, of Ni 8-18% Pb 0À5-2‹5% Mn 3-10% Zn such that Zn+Mn(1À35-0À07 Mn)- 0À3N is from 38À6 to 40À6% Cu and impurities - balance
Patent GB-281960-A (GB)
Title: Improvements in or relating to range finders
IPC: G01C3/02
Filed: 1927-06-17
Abstract: 281,960. Dicker, S. G. S., (Goerz Optische Anstalt Akt.-Ges., C. P.). June 17, 1927. Addition to 245,034. Range finders. - The two spiral discs in the range-finder described in the parent Specification are coupled together by means of at most a single band. In one method the coupling is only frictional and is effected by springs q which press the peripheries of the discs together.
Patent GB-1140905-A (GB)
Title: Improvements in the manufacture of n-methylolacrylamide
Inventor: BASHFORD LESLIE ARTHUR
IPC: C07C233/16
Filed: 1965-04-15
Abstract: 1,140,905. N-Methylolacrylamide. COURTAULDS Ltd. 14 April, 1966 [15 April, 1965], No. 16194/65. Heading C2C. N-methylolacrylamide is made by reacting substantially equimolar proportions of acrylamide and paraformaldehyde in dry trichloroethylene in the presence of sodium metal. The N-methylol-acrylamide can be subsequently etherified with methanol in the presence of an acid to yield N-methoxymethylacrylamide. An example is provided.
Patent GB-1161693-A (GB)
Title: Improved Preparation of Alkali Metal Tripolyphosphate
Inventor: DESHPANDE ARUN KESHAV
IPC: C01B25/41
Filed: 1966-04-13
Abstract: 1,161,693. Alkali metal tripolyphosphates. ELECTRIC REDUCTION CO. OF CANADA Ltd. 19 May, 1967 [13 April, 1966], No. 16229/66. Heading C1A. High purity sodium or potassium tripolyphosphate is prepared by heating a sodium or potassium orthophosphate solution containing impurities present in wet process phosphoric acid with a magnesium, calcium, strontium or barium oxide or hydroxide or salt which yields anions capable of forming a sodium or potassium salt which decomposes to give only a sodium or potassium oxide or hydroxide and volatile products, so as to increase the alkali metal to phosphorus ratio to 5 : 3, separating the precipitated phosphate together with cationic impurities entrained in the precipitate, chiefly as phosphates, evaporating to dryness and calcining at a temperature above 300‹ C. to give the polyphosphate. The added insoluble phosphate-forming compound is preferably calcium oxide. The orthophosphate may advantageously be prepared by hydrating the corresponding trimetaphosphate, preferably prepared by reacting the alkali metal chloride with phosphoric acid, with water at 106-110‹ C. (if no insoluble metaphosphates are present) or 100-210‹ C. (if insoluble metaphosphates are present).
Patent GB-703188-A (GB)
Title: Improvements relating to the mounting of smallarms barrels
Inventor: HOLDEN ARTHUR STEPHEN
IPC: F41A21/48
Filed: 1951-07-09
Abstract: 703,188. Smallarms. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 4, 1952 [July 9, 1951], No. 16270/51. Class 119 The barrel 1 of a small arm is supported by three bearing surfaces on the stock 6, the first being formed at 17 by the barrel body in direct contact with the stock to which it is positively secured, as by a screw 18, the second (not shown) by direct contact with the muzzle and the stock, and the third being positioned between the other two and capable of adjustment from the exterior of the gun so as to control the pressures exerted at all three surfaces. The third bearing surface shown consists of a saddle member 22 which engages the underside of the barrel reinforcement 2, and which is recessed at 35 to receive the inner end of an adjusting screw 24 on which it can rock. The screw engages the internal thread of a member 23, which has a rectangular head 28 seated in a recess 31 of the stock and a stem 29 extending into a hole 32 of the stock. The screw can be adjusted from the exterior of the stock and is locked in position by a nut 25. If the rifle has a sling, adverse effect thereof on the foreend bearing is prevented by inserting a wooden liner 36, Fig. 4, beneath the front hand guard 9 at a position near and in front of the steel liner 37 normally provided at the rear of the guard.
Patent GB-1199921-A (GB)
Title: Air Conditioning Equipment
Inventor: KIRBY DONALD JOHN
IPC: F24F3/12
Filed: 1966-04-13
Abstract: 1,199,921. Air humidifier. D. J. KIRBY. 12 July, 1967 [13 April, 1966], No. 16270/66. Heading B1R. Apparatus for supplying heated humidified air comprises a fan 11 which drives air over a heater 22 and through a continuously moving endless belt 15 which passes out of the duct 13 and dips at its lower end in a tank 18 containing water. Preferably the belt is made of polyurethane foam.
Patent GB-911230-A (GB)
Title: Process for the production of esters of tertiary alcohols
IPC: B01J31/02
Filed: 1961-05-05
Abstract: Esters of tertiary alcohols are made by direct addition of aromatic or heterocyclic solid organic acids to iso-olefins, the reaction being carried out at temperatures between 0 DEG  and 50 DEG C., preferably between 20 DEG  and 25 DEG C., possibly under pressure, and in the presence of an oxonium salt as a catalyst, having the general formula: <FORM:0911230/IV (b)/1> where R1 is aryl, alkyl or hydrogen; R is alkyl or hydrogen; n is 1 or 2.  Oxonium salts of ethyl ether, iso-amyl ether, anisole, ethyl alcohol, phenol and water are suitable. Hydrocarbon solvents, such as benzene, toluene, benzene or an excess of the olefin reactant, may be used and the reaction may take place substantially in heterogeneous phase.  Examples describe the preparation of t-butyl benzoate from benzoic acid and isobutylene; t-butyl pyromuciate from pyromucic acid and iso-butylene; and t-butyl meta-toluate from m-toluic acid and iso-butylene.
Patent GB-1286277-A (GB)
Title: Asbestos-thickened epoxy materials for use in atmospheres of arced sulfur hexafluoride and articles thereof
IPC: C08G59/24
Filed: 1969-10-22
Abstract: 1286277 Epoxy resin composition WESTINGHOUSE ELECTRIC CORP 22 Oct 1969 [13 Nov 1968] 16396/72 Heading C3B A composition comprises: 100 parts by wt. of an epoxy resin of formula in which n=4-30 and R and R<SP>1</SP> are C 1-4  alkyl radicals; 30-115 parts by wt. of polyazelaic polyanhydride (M.W. 2100-2500) and/or hexahydrophthalic anhydride; 120-150 parts by wt. of alumina trihydrate or naturally occurring magnesite; and 1-6 parts by wt. of finely divided asbestos or short-fibre white chrysotile asbestos as a thixotroping agent.
Patent GB-624264-A (GB)
Title: Improved tool for shaving down local protuberances
IPC: B23C3/00
Filed: 1947-06-23
Abstract: 624,264. Portable turning-apparatus. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., SIR W. G., and PLESTER, J. June 23, 1947, No. 16485. [Class 83 (iii)] A portable tool for shaving down local protuberances on a generally-flat surface, such as rivets on an aerofoil, has a body 11 with a hollow endmember 12 terminating substantially flush with a rotary end - facing cutter mounted within it, and a pair of wheels 28, which, together with the end-member, provide a threepoint support for the tool; the end-member has a recess 19 through which the rivets can pass as the tool is traversed over the surface. The wheels are mounted in forks 29 independently adjustable in a bracket 26 which is secured to the endmember by a bolt 27 and adjusted thereon by a bolt 32. To clear away swarf, the exhaust from a pneumatic motor 14 driving the cutter is directed by a pipe 23 into a recess 21 opposite the recess 19. Specification 571,130 is referred to.
Patent GB-499138-A (GB)
Title: Improvements relating to cones or other tubular holders for textile yarns or threads
IPC: B65H75/18
Filed: 1937-06-15
Abstract: 499,138. Bobbins or tubes. LOWRY, A. S. June 15, 1937, No. 16532. [Class 120 (iii)] The winding surface of a conical tube or bobbin for holding yarns or threads is treated with shredded material to give a good gripping surface and to prevent slipping of the windings, the material being applied with a suitable adhesive to a paper blank which is subsequently wound to form the tube or the outer surface of a previously-formed tube. The shredded fibrous material may be paper, wool, cotton, kapok, or leather.
Patent GB-740842-A (GB)
Title: Improvements in or relating to air and gas filters
IPC: B01D46/04
Filed: 1953-06-16
Abstract: 740,842. Filtering gases. DIEBOLD & CO. SOC. ANON. June 16, 1953 [June 20, 1952], No. 16552/53. Class 8(2). A plurality of inward flow gas filter sleeves 1 are cleaned periodically either singly or in groups 1a by a a reverse flow of gas generated by a fan 12 located in a box 9 moved e.g. by a belt 13 over a plate 2 from which the sleeves 1 are suspended. Cleaned gas from a chamber 4 may be utilized. The movement of the box 9 over the plate 2 during a cleaning period may be continuous or intermittent and it may be rotational.
Patent GB-334573-A (GB)
Title: Improvements in, or relating to aircraft
IPC: B64C13/00
Filed: 1929-05-30
Abstract: 334,573. Navarro, M. A., and Navarro, J. G. May 30, 1929. Steering, balancing, and regulating altitude.- In aeroplanes of the type having elevators adapted to give a degree of lateral control, the elevators are hinged at an oblique angle to the longitudinal axis of the machine and are operated by the control member which also operates the ailerons. A column 8 universally jointed at 9 carries a sleeve 7 having a wheel 6 at the upper end and a lever 11 at the lower. The ends of the lever 11 are connected by links 12, 13 to levers 14, 15 independently mounted on the elevator cross-shaft and connected by cables to the elevator horns. Fore and aft movement of the column 8 thus causes the elevators to move up and down together, whilst rotation of the handwheel 6 causes them to move differentially. The aileron control cables are connected to the ends of the lever 11, the ailerons being operated by lateral movement of the column and lever.
Patent GB-919252-A (GB)
Title: A method of securing a cross-bar on conveyor belts
IPC: B65G15/42
Filed: 1961-05-08
Abstract: 919,252. Endless conveyer belts. PIEDMONT, G. May 8, 1961 [May 6, 1960], No. 16641/61. Class 78 (1). Cross-bars 2 for carrying along material supported on an endless belt 1 comprise channelsection metal the edges of the webs 3 of which are bent inwards to form walls 4 and a longitudinal slot 5. To secure a cross-bar the belt is folded into a loop 6 and a tube 7 located in the loop. Resilient clips 14 prevent forcing open or twisting of the cross-bars. For retaining material on the belt, links 15 may be secured to pins 16 passing through, or forming extensions of, the tubes 7, Fig. 3.
Patent GB-1300278-A (GB)
Title: Improvements in and relating to hydraulic pumps
Inventor: PAGE WILBUR MILLS
IPC: F04B7/04
Filed: 1970-04-08
Abstract: 1300278 Reciprocating pumps CLAYTON DEWANDRE CO Ltd 19 April 1971 [8 April 1970] 16711/70 Heading F1A A duplex pump for independently pressurizing the two sections of a split hydraulic braking system, comprises pistons 6 reciprocated in cylinders 5 by eccentrics on a shaft 4, each piston and cylinder assembly having independent inlet and delivery connections and output control devices. Each control device 17, Fig.2 comprises a spring- loaded valve 18 controlling an inlet port 16 to the associated cylinder, the valve being moved by the associated piston and cylinder delivery pressure acting on piston 19 to close port 16 above a predetermined delivery pressure, which is pre-set by screwing control device 17 into or out of the pump housing. Inlet port 16 communicates with cylinder inlet ports 8 and with a chamber 14 supplied by inlet connection 12. One of the inlet connections 12 also communicates with the crankcase for lubrication of the drive assembly. Delivery takes place via disc valves 10. Shaft 4 may have an extension 4b for driving auxiliary equipment. Interchangeable mounting flanges are removably attached to housing 1, e.g. for mounting the pump on an engine, the engine oil then lubricating bearing 25 and seals 26 and oil thrower 27 being provided.
Patent GB-385215-A (GB)
Title: Collar-stud
IPC: A44B3/08
Filed: 1932-06-13
Abstract: 385,215. Studs. TOLK, C., 2A, Lindenlaan, Bussum, Holland. June 13, 1932, No. 16717. Convention date, June 18, 1931. [Class 43.] In collar studs comprising a shank 4 adapted to be inserted in a tubular stem 1, the shank and stem being fixed to plates 6, 3, respectively, and wherein the stem 1 is resilient and provided with slots 2, the shank is provided with lugs 5 which are adapted to snap into widened parts 9 of the slots. The tip of the shank may be tapered and the lip of the stem formed with recesses 7. The shank may be thickened as at 10 to provide an abutment for the stem. The diameter of the lugs is greater than the width of the slot, but is equal to or less than the diameter of the widened parts 9. The tubular stem may have a flat shape, the slots being in the broad sides. Specification 17128/08, [Class 43, Fastenings, Dress], is referred to.
Patent GB-961821-A (GB)
Title: Packaging film
Inventor: SCHUR MILTON OSCAR
IPC: B29C67/00
Filed: 1963-04-29
Abstract: 961,821. Perforating film. OLIN MATHIESON CHEMICAL CORPORATION. April 29, 1963, No. 16731/63. Heading B4B. [Also in Division B8] A vented packaging film 10 of ductile material has a plurality of rows of embossments 11 each provided with openings in both its end walls 12, Fig. 4, or with a single opening in its end wall, Fig. 5. The film may be of polyolefine, polyethylene, polypropylene, polyvinyl chloride, or polyethylene terephthalate. There may be 100 to 1500 embossments per square inch in the film and the embossments may be provided on both sides of the film. The vented film may be formed by passing the film between a toothed roll and a rubber-covered backing roll; alternatively, the film may be advanced discontinuously over a rubber or like resilient surface and stamped by a reciprocating press provided with a plurality of teeth or punches. U.S.A. Specification 2,699,208 is referred to.
Patent GB-1134719-A (GB)
Title: Deep hole drill
IPC: A47J37/06
Filed: 1966-04-15
Abstract: 1,134,719. Deep-hole drills. F. E. SANBORN. 15 April, 1966, No. 16749/66. Heading B3C. A deep hole drill comprises a round section rod 10, Fig. 1, having a round shank portion 11, an intermediate portion 13 of semicircular crosssection, and a cutting end portion 12 of circular cross-section having a quarter section removed. Portion 12, has a wall 17 which is arranged at an angle to the axis of the drill, Fig. 2, and connects the cutting edge 19 with a point 18 on the drill periphery. Wall 17 may form a right, acute, -or obtuse angle with surface 16, in cross section and may be flat or convex. The edge 19 extends radially for at least the radius of the drill, Fig. 9, and the drill may provide a peripheral clearance from point 23 to point 24. End 12 may be flat or conical, and cutting edge 19 may have a positive, zero, or negative rake.
Patent GB-902791-A (GB)
Title: Improvements in or relating to fluid operated presses
IPC: F42B33/02
Filed: 1958-05-27
Abstract: 902,791. Moulding cordite. GREENWOOD & BATLEY Ltd., FORBES, C. L., and BUCKINGHAM, J. Aug. 14, 1959 [May 27, 1958], No. 16776/58. Class 9 (2). [Also in Group V] A fluid-operated press of the horizontal type particularly for use in the manufacture of cordite comprises a fixed ram and a moving cylinder, the said cylinder being guided in the direction of its axis and operatively connected to a pressing tool. In a preferred embodiment the press consists of a framework comprising a base-plate 1 and a ram cross-head 2 and a container cross-head 3 connected by three horizontal tie-rods at a sufficient distance apart to admit the main cylinders 5, ram 6, and plunger 7. A container 12 has a cavity 13 for the reception of cordite which is compressed by the plunger 7 and extruded through a die 14 and a die bush 15. The main cylinder 5 is supported by long rectilinear guides 26 (not shown) which work upon wearing slips which ensure that the guides are entirely supported at all positions of the strokes of the cylinder. A breech-block 16 which contains the die 14 is fitted with a worm-wheel 50 engaging a worm 51 which is arranged to be rotated by the power of a fluid-operated motor, the whole being supported by a tilting bracket 60. The plunger 7, container 12 and breech-block 16 are each provided with passages for the circulation of a heating fluid. A plug 22 acts as a safety device and if the pressure becomes excessive a flange is sheared off, blowing out the plug. In the case of very high excess pressures, ram 6 is forced through cross-head 2 by the breaking of certain fastening members.
Patent GB-919752-A (GB)
Title: A tanker provided with a tank having multiple compartments
IPC: B63B27/24
Filed: 1961-05-09
Abstract: 919,752. Storing liquefied gases. CONCH INTERNATIONAL METHANE Ltd. May 9, 1961 [July 29, 1960; Sept. 29, 1960], No. 16779/61. Class 8(2). [Also in Group XXXIII]. A tanker for transporting liquefied gases at subatmospheric temperatures and about atmospheric pressure contains at least one liquid-tight thermally insulated hold 13, 14, 15 or 16 with a prismatic storage tank 1 disposed within. The tank 1 is divided into a plurality of liquidtight compartments by walls 20, 21, at least one of which 20 bisects the tank longitudinally. The tank 1 is also provided with a hole in the top communicating with each compartment and with a trunk 5 which houses the vapour, filling and emptying lines. A conduit 29 connects with one of the compartments and with each of others through pipes 27 fitted with valves 26. The compartments may also be connected by valves 23, 24 and 25. Specifications 853,367 and 853,408 are referred to.
Patent GB-595783-A (GB)
Title: Improvements in or relating to dyestuff intermediates
IPC: C09B23/00
Filed: 1945-07-03
Abstract: A dye intermediate is prepared by treating a cyclohexane 1 : 3-dione with an alkyl, aryl or aralkyl mercaptan in the presence of a strong acid, the reaction being preferably effected in presence of a solvent for the reactants and the reaction mixture being kept as dry as possible.  The acid may be dry HCl.  A considerable excess of mercaptan may be used and function as a solvent.  D 2 : 3 - (3 - Ethylthio - 5 : 5 - dimethyl) - cyclo - hexenone (1) is prepared by passing dry HCl into a cooled mixture of 5 : 5-dimethylcyclohexanedione (1 : 3) and allowing to stand.  D 2 : 3-(3-Ethylthio-5-phenyl)-cyclohexenone (1), D 2 : 3-(3 - ethylthio - 5 - methyl) - cyclohexenone (1) and D 2 : 3 - (3 - ethylthio) - cyclohexenone (1) are similarly prepared.  Dye intermediates may also be prepared from 5-isopropyl-, 4 : 5 : 5-trimethyl-, 4-phenyl-5 : 5-dimethyl- and 5-styryl-cyclohexanedione (1 : 3).  Specifications 553,143, 553,264 and 595,784 are referred to.
Patent GB-1040378-A (GB)
Title: Rollers for transporting sheet material
IPC: H01H67/24
Filed: 1964-04-23
Abstract: 1,040,378. Rollers. PAKO CORPORATION. April 23, 1964 [May 1, 1963], No. 16905/64. Heading F2U. [Also in Division G2] The surface of a roller intended especially for use in a photographic film drier is formed with grooves for the reception of strips, of resilient material which normally project beyond the surface of the roller but are compressed during the passage of the sheet, the subsequent elastic recovery of the strips preventing adhesion of the sheet to the roller and consequent deviation from the desired direction of movement. As shown in Fig. 3 the resilient strips 26, preferably made from polyurethene foam, are in the form of rings let into annular grooves 26 in the roller surface. Alternatively the grooves may be of helical form, Fig. 8, showing an arrangement in which strips 46, 50 are let into double helical grooves 44, 48. Preferably the width of the strips is slightly less than that of the grooves to allow lateral expansion. When applied to a film drier, Figs. 1 and 2 (not shown), the film is fed between a succession of pairs of geared lower and upper rollers 14, 18, Fig. 3, with the strips arranged in staggered formation.
Patent GB-332009-A (GB)
Title: Improvements in or relating to electric generating installations
IPC: H02P9/26
Filed: 1929-06-01
Abstract: 332,009. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). June .1, 1929. Regulation, automatic.-The voltage of a self exciting generator which has a straight or nearly straight no - load characteristic be - tween the voltage limits desired, is controlled by discharge tubes connected in parallel with the shunt field winding. A discharge tube 4 with anode 5 and cathode 6 is provided with a variable resistance 8 in the heating circuit and a resistance 3 which may be variable is connected in the parallel circuits. The self exciting machine may be an exciter 1 for an alternator 10 as in Fig. 2 (not shown) or a generator 15 as in Fig. 3 (not shown). In Fig. 3 a triode tube is employed having the grid potential varied in accordance with load conditions.