baber/WOPTO huggingface dataset:
Patent GB-138176-A (GB)
Title: Improvements in or relating to internal combustion rotary engines
IPC: F02B57/08
Filed: 1919-02-13
Abstract: 138,176. Johnston, N. Feb. 13, 1919. Movable-abutment type.-A movable-abutment type of rotary internal-combustion engine comprises a rotor A having a piston A<2> and two scavenging-vanes A<3>, A<4>. The explosive mixture is compressed by pistons E<3>, E<4> operated by eccentricts A<5>, and is exploded at F<1>, the oscillating valve D<4> acting as abutment, and exhaust taking place at B<1>. The vanes A<3>, A<4> meanwhile sweep the burnt gases from the previous stroke through the exhaust B<2>. The operation is repeated when the piston has passed the valve D<3>.
Patent GB-1306660-A (GB)
Title: Spinal disc prostheses and method of making same
IPC: A61F2/00
Filed: 1972-01-25
Abstract: 1306660 Spinal disc prosthesis CUTTER LABORATORIES Inc 25 Jan 1972 [25 Jan 1971 30 Dec 1971] 3483/72 Heading A5R A resilient prosthesis for replacement of a damaged spinal disc comprises a spinal discshaped element having two generally flat faces, and a central portion of elastic polymer. The prosthesis may consist of a central section 15, having an inner portion 16 of a silicone elastomer, surrounded by a plurality of layers 14 of silicone elastomer reinforced with a mesh of polyester filaments. End elements 11 and 12 which are vulcanised to the central section 15, consist of layers 17, 18, 19, 17', 18', 19' of silicone elastomer, reinforced by outer layers 20, 20' of fabric such as polyester mesh and covered by a fabric coating 21 of polyester mesh. The fabric has an open pore structure enabling ingrowth of bone from the surrounding vertebrae into the prosthesis when in use. The middle layers 18, 18' may be of perforate plastics or metal plate to increase the stiffness of the prosthesis. The inner portion of the central section (15A), Fig. 6 (not shown) may alternatively consist of a visco elastic fluid polymer (41) in a sac-like container (40). The posterior side wall of the prosthesis may be strengthened by box sutures (45), Fig. 8 (not shown) or an extra layer (46) of metal or rigid plastics in the posterior side wall. In further embodiments, Figs. 11 to 19 (not shown), the prosthesis consists of a single core element (15D), (15E) or (15F). The core, (15D) may consist of a plurality of layers (71) of silicone elastomer reinforced with a polyester mesh and coated with silicone. Alternatively the core (15E) may be a single element reinforced by random chopped fibres of polyester (73), or a strip of polyester covered with silicone may be spirally wound, Fig. 15. In further embodiments the side walls of the prosthesis are made concave, Figs. 10 to 19, and the prosthesis is formed of layers of silicone elastomer the outer of which are reinforced with dacron mesh, to enable the inner layers (95), (90), (97) to have better yielding properties.
Patent GB-700694-A (GB)
Title: Method of inhibiting aluminium powder from reacting with water
IPC: C06B33/02
Filed: 1951-02-13
Abstract: Aluminium powder, e.g. obtained by spraying, is mixed with an aqueous solution or dry powder of a bichromate. e.g. potassium bichromate, in amount 0.05-5 per cent. by weight of the aluminium.
Patent GB-489386-A (GB)
Title: Apparatus for the manufacture of bodies from fibre pulp
IPC: D21J5/00
Filed: 1937-02-05
Abstract: 489,386. Delivering measured quantities of liquids. PULP INDUSTRIES, Ltd. Feb. 5, 1937, No. 3502. Convention date, Feb. 6, 1936. [Class 106 (v)] [Also in Group V] In apparatus foi moulding hollow bodies from pulp, an adjustable container a for measuring the quantity of pulp is connected in series with a further container b leading to a mould c. The capacity of the container a is adjustable as by movable walls or by an adjustable slidable member m. Pulp is supplied through a valve f to the container a, an overflow edge g returning excess. The valve f may be used for directing the pulp to the container b.
Patent GB-501476-A (GB)
Title: Method of preparing mercapto aryl thiazoles
IPC: C07D277/72
Filed: 1938-02-04
Abstract: 501,476. Mercapto aryl thiazoles. WINGFOOT CORPORATION. Feb. 4, 1938, No. 3525. Convention. date, May 5, 1937. [Class 2 (iii)] Mercapto aryl thiazoles are prepared by reacting sulphur, a primary aromatic amine having a free ortho position, and an acid of the X # formula H-C-X-H where X represents oxygen or sulphur. The reaction may be carried out in one step, or intermediates may be progressively formed which are then transformed into the mercapto aryl thiazole. Acids mentioned as suitable are formic acid, thio formic acid, thiol formic acid, and dithio formic acid. Primary amines mentioned, include aniline, the toluidines, xylidines, alpha and beta naphthylamines, anisidines, phenetidines, ortho chlor aniline, amino-biphenyl, and para phenylene diamine. In an example, aniline and sulphur are heated together to form diphenyl sulphide, which is converted into diformamide by' heating with formic acid. This is then treated at elevated temperature with formic acid and sulphur to give the required 2- mercaptobenzothiazole. The reaction may be performed in one step by heating the aniline, formic acid and sulphur together in one operation. The preferred reaction temperature is from 220 to 250‹ C.
Patent GB-1218910-A (GB)
Title: Cleaning and sorting machine for particulate materials
Inventor: FETERL LEON GEORGE
IPC: B07B1/22
Filed: 1970-01-26
Abstract: 1,218,910. Rotary screening apparatus. L. G. FETERL. 26 Jan., 1970 [24 Feb., 1969], No. 3592/70. Heading B2H.  A rotatable screening drum D for separating undesirable and desirable particulate materials has mounted therein a number of axially spaced, stationary slide baffles 18 having their edges spaced from the screen surface of the drum and downwardly inclined in the direction from the material intake end 6a to the clean particle discharge end 7a of the drum. In operation, the feed material introduced via a chute 33 into the drum is engaged by the screen surface and through the effects of centrifugal force and friction is carried upwardly in a circular manner until the force of gravity causes the material to topple and drop from an upper portion of the drum on to the baffles 18 rolling and sliding downwardly and forwardly thereon until it drops from the lower edges of the baffles on to screen surface to be tumbled again. As the material travels upwardly the fine undesirable particles are progressively screened through the drum. The larger desirable clean particles are finally discharged through the outlet 7a. The ends 6a, 7a of the drum D are supported on rollers 17 carried by shafts 16 of a frame F and the drum is rotated by an electric motor M through belt and pulley 31, 31a and sprocket 26, chain 25 and gear ring 24. The baffles 18 are shiftably mounted on the shafts 16, their angles of inclination being simultaneously adjustable by a bar 20 operable by a handle 20f and retained in an adjustable position by notches 20c thereon engaging the lower edge of a slotted plate 21. The baffles are ovalshaped and may be flat or slightly concave on the surface facing the discharge end 7a, as shown by the end baffle 18a which serves as a discharge chute for clean particles. Material treated include grain, chemicals and plastics.
Patent GB-175520-A (GB)
Title: Improvements relating to motor and other vehicle lamps
IPC: B60Q1/04
Filed: 1921-01-29
Abstract: 175,520. Lucas, H., and Egginton, W. H. Jan. 29,1921. Vehicle lamps, attaching to brackets.-A lamp is adjustably mounted on a vehicle by means of a hollow spherical boss a formed on the casing b and seated on the rim of a socket c disposed between the lamp body and a member d on the vehicle to which the lamp is to be attached. Bearing on the internal surface of the boss a is a circular plate e engaged by the head of a fastening- bolt f so that the lamp may be secured in the adjusted position by tightening a nut h on the underside of the supporting-member d. A projection g secured to the lamp body engages a slot in the head of the bolt f so as to prevent rotation of the latter relatively to the lamp.
Patent GB-1217283-A (GB)
Title: Apparatus for electrically controlling a knitting machine
IPC: D04B15/66
Filed: 1969-01-22
Abstract: 1,217,283. 283. Programmed control of Tentile machines. UNIVERSAL MASCHINENFABRIK DR. RUDOLF SCHIEBER G.m.b.H. Jan. 22, 1969 [Jan.26, 1968]. No.3674/69. Heading G3N. [Also in Division D1]. A programme control system for knitting machines has two storage units for each control function to be performed, having a storage capacity corresponding to the number of needles in the knitting machine, arranged so that one set of storage units accepts into storage control pulses from a programme medium while the other set emits control pulses to needle controlling magnets. As shown, a magnetic tape 26, having recorded thereon pulses in multiple tracks, corresponding in number to the cam boxes to be controlled, is read by a unit 27 and the pulses transmitted via an amplifier 28 to a switching unit 29. The pulses from the switching unit are fed to two sets of memory units 30-33, each set comprising two memory units, since in the machine described, Figs. 1-4 (not shown), two cam boxes are provided on the carriage. A timing signal generator 6, fastened to the carriage, emits a pulse on passage of an individual trick of the needle bed and a continuous train of pulses is fed via amplifier 34 and a switching unit 35 to empty the filled memory units, say 31,33, through a diode distributing unit 36, pulse shapers 37, and amplifiers 38 to actuate the appropriate control magnets 16. The empty memory units 30, 32 are meanwhile filled from the tape 26, movement of which is stopped by an automatic device, not shown, triggered by a signal released by the memory units 30,32 when full.
Patent GB-587453-A (GB)
Title: Porous compositions
IPC: C08J9/06
Filed: 1944-02-29
Abstract: Aluminium, zinc, or iron powder is incorporated in at least an equal quantity by weight of a resin such as shellac, xanthoarhoea rosin or other acid-containing natural resin, or mixtures thereof or with urea formaldehyde or polyhydric alcohol-polybasic acid artificial resins so that the metal reacts with the acid of the binder with the evolution of gas to form a porous product.  The metal may be added to a solution of the resin in alcohol or to the molten resin, and the evolution of gas can be controlled by heating, cooling, the application of reduced pressure, or the addition of a small amount of sodium hydroxide.  The products, which are non-conductors of heat, sound, and electricity, and, when light metals are used, are of low specific gravity, can be used in the construction of refrigerators, insulating-walls, floors, roofs, aeroplane wings and struts, pipes, and buoyant articles.ALSO:A porous composition is formed by incorporating a powdered metal, such as aluminium, magnesium, zinc, or iron, in at least an equal quantity by weight of a polyhydric alcoholpolybasic acid artificial resin containing unreacted acid, or a mixture of a natural resin with a urea-formaldehyde or polyhydric alcoholpolybasic acid resin, so that the metal reacts with the acid of the resin with the evolution of gas.  The metal may be added to a solution of the resin in alcohol or to the molten resin, and the evolution of gas can be controlled by heating, cooling, the application of reduced pressure or the addition of a small amount of sodium hydroxide, and a gas such as carbon dioxide, hydrogen, or compressed air can be injected.ALSO:A porous composition is formed by incorporating a powdered metal in at least an equal quantity by weight of a resinous binder so that the metal reacts with a constituent of the binder with the evolution of gas Aluminium, magnesium, zinc, and iron can be used, and shellac, xanthorrhaea, rosin, or other acid-containing natural resin, mixtures thereof or with urea-formaldehyde or polyhydric alcoholpolybasic acid artificial resins, or polyhydric alcohol-polybasic acid artificial resins containing unreacted phthalic, malic, maleic, or other acid, can be used as binders.  The metal may be added to a solution of the resin in alcohol or to the molten resin, and the evolution of gas can be controlled by heating, cooling, the application of reduced pressure, or the addition of a small amount of sodium hydroxide, and a gas such as carbon dioxide, hydrogen, or compressed air can be injected.  The products, which are non-conductors of heat, sound, and electricity, and, when light metals are used, are of low specific gravity, can be used in the construction of refrigerators, insulating-walls, floors, roofs, aeroplane wings and struts, pipes and buoyant articles.
Patent GB-372364-A (GB)
Title: Improvements in perforated record-cards
IPC: G06K19/04
Filed: 1931-02-06
Abstract: 372,364. Statistical cards. BRITISH TABULATING MACHINE CO., Ltd., Victoria House, Vernon Place, Southampton Row, London.-(Assignees of Peirce, J. R. ; 33, Riverside Drive, New York, U.S.A.) Feb. 6, 1931, No. 3784. Convention date, Feb. 7, 1930. [Class 106 (i).] In a statistical card formed in two separable portions 1a, 1b, one of which contains printed and/or written data and the other holes representing said data, the second portion 1b is divided into two fields 3, 4 of which one contains holes representing numerals by their positions in columns each containing four hole positions and the other contains holes representing letters by their positions in columns each containing six hole positions. The card is attached to an article to be sold, the perforated portion 1b being detached after the sale of the article and inserted into a cash register of the kind described in Specification 370,423, that registers the price and other numerical data relating to the article from the holes in field 3 and prints the name of the article from the holes in field 4. In a modification, Fig. 2, the size of the card is reduced, holes corresponding to the price only being arranged in square areas in one field 13, and staggered rows of holes being perforated in a second field 14 to represent the name of the article.
Patent GB-524772-A (GB)
Title: Improvements in or relating to veneer bevelling machines
IPC: B27D1/10
Filed: 1939-02-07
Abstract: 524,772. Bevelling veneer sheets. LIPPERT, H., (trading as LIPPERT MASCHINENBAUANSTALT, H.). Feb. 7, 1939, No. 3997. Convention date, March 4, 1938. [Class 60)] A machine for bevelling veneer sheets comprises a grinding-cylinder A, of length equal to the width of the sheet, mounted on a frame L and driving, through a coupling operated by a pedal D, a shaft B carrying eccentrics N, the shaft B driving a shaft C carrying eccentrics N<SP>1</SP>. The sheet W rests on a table E, its edge being positioned by a stop F and the table being lifted to carry the edge away from the stop and into contact with the grinding-cylinder by the eccentrics N on shaft B. The eccentrics act through eccentric members on the shaft J adjustable by the lever H to vary the height to which the table is raised. The sheet is then held down on the table by a spring pressed clamp bar G, and the table is reciprocated laterally of the cylinder A by the eccentrics N<SP>1</SP>, the table moving on an inclined guide K adjustable to suit the angle of the bevel. The work is lowered and the shafts B, C are stopped by releasing the pedal D.
Patent GB-1379077-A (GB)
Title: Airfield lighting circuit arrangements
IPC: H05B37/03
Filed: 1972-01-28
Abstract: 1379077 Lamp failure alarms PLESSEY CO Ltd 16 Jan 1973 [28 Jan 1972 14 April 1972] 4012/72 and 17446/72 Heading G4N An airfield lighting circuit comprises a loop circuit which includes a number of lighting units 2 connected to the loop by transformers 3, and means operable in dependence on the power factor of the loop to give an output indicative of one or more of the lighting units being open circuit. Failure of one of the lamps 2 open circuits the secondary of its associated transformer 3, so that the leakage inductance modifies the power factor of the circuit 1. The change in power factor is detected by a phase comparator 6 to cause relay 11 to release, closing contacts 12 in an alarm circuit. In an alternative form of phase comparator, Fig. 2 (not shown) zero crossing of the current and voltage set and reset a switching circuit (26) to produce pulses having a width proportional to phase difference. These are then used to gate a full wave rectified signal from the source to produce a linear output.
Patent GB-683410-A (GB)
Title: Production of impregnating agent for treating fibres or fibrecontaining substances and objects
IPC: C08G12/04
Filed: 1950-02-16
Abstract: Concentrated impregnating agents, comprising mixed partial co-condensates soluble in water to give crystalloid-type dispersions, are made by reacting formaldehyde in the presence of water with dicyandiamide (which may contain cyanamide as impurity) and one or more of the substances urea, thiourea and melamine, in amount not greater than three times the weight of the dicyandiamide, at normal or moderately raised temperature and at a pH value of 7, and converting the resulting stable solution by careful removal of water at a pH of 7 into a syrupy, pasty or solid concentrate.  The dicyandiamide may be used in the form of an aqueous extract of calcium cyanamide, which solution also contains cyanamide.  The partial co-condensates may be made step-by-step, e.g. by forming a partial condensate or mixed partial condensate from dicyandiamide or the aqueous extract of calcium cyanamide and excess formalin, then adding and condensing in urea and/or melamine, and the condensation may be combined with the concentration step by heating.  Substances of neutral reaction, e.g. ammonium nitrate to accelerate hardening and supplementary substances of neutral reaction to promote cross-linking, e.g. the ammonium salts of thiocyanic, cyanuric, barbituric and lactic acids, may be added to the impregnating liquor by incorporation with the solutions of the pre-condensates, or the concentrates thereof, or with the aqueous solutions of the concentrates.  Examples are given.  The products find use in improving wood, in crease-proofing textile materials, e.g. fabrics containing cellulose fibres or fibres of cellulose hydrate, and artificial silks, in improving the hardness of wood fibre bodies such as plates, and in increasing the wet strength of paper. Specifications 287,177, 314,358, [both in Class 2 (iii)], and 669,088, [Group IV (c)], are referred to.ALSO:Mixed partial co-condensates are made by reacting formaldehyde in the presence of water with dicyandiamide (which may contain cyanamide as impurity) and one or more of the substances urea, thiourea and melamine, in amount not greater than three times the weight of the dicyandiamide, at normal or moderately raised temperature and at a pH value of 7, and converting the resulting stable solution by careful removal of water at a pH of 7 into a syrupy, pasty or solid concentrate.  The dicyandiamide may be used in the form of an aqueous extract of calcium cyanamide, which solution also contains cyanamide.  The partial co-condensates may be made step-by-step, e.g. by forming a partial condensate or mixed partial condensate from dicyandiamide or the aqueous extract of calcium cyanamide and excess formalin, then adding and condensing in urea and/or melamine, and the condensation may be combined with the concentration step.  Examples are given. Specifications 287,177, 314,358, [both in Class 2 (iii)], and 669,088, [Group IV (c)], are referred to.
Patent GB-1037134-A (GB)
Title: A modified fluid flow check valve
Inventor: FORSTER ROBERT RAMSAY
IPC: F16K15/18
Filed: 1964-01-30
Abstract: 1,037,134. Valves. DRAYTON CONTROLS Ltd. Jan. 30, 1964, No. 4063/64. Heading F2V. A check valve is provided with independently operable override. Stirrup 20 is freely displaceable upon portion 17 of spindle 11, between a washer 26 and a shoulder 19 of a screw-threaded enlargement 15, so that integral closure member 9, bearing sealing ring 10, is movable into and out of engagement with seating 8 to act as a non-return valve between inlet 4 and outlet 5. The spindle 11 is manually displaceable, upon screw-threaded portion 15, to restrain the closure in the open or closed position or restrict movement in the intermediate position, by engagement of the stirrup 20 by washer 26 or shoulder 19 with the non-return position of the valve indicated by the coincidence of spindle groove 25 with the upper part of bore 12 of bonnet 3. The spindle 11 is alternatively displaceable by a rack and pinion, by a fluid operated plunger or by an electric motor.
Patent GB-1198341-A (GB)
Title: Improvements in and relating to the Construction of Walls, Ceilings and the Like
Inventor: O'RIORDAIN DIARMUID
IPC: E04B9/24
Filed: 1968-01-25
Abstract: 1,198,341. Supporting expanded polystyrene panels. D. O'RIORDIAN. 25 Jan., 1968 [13 April, 1967; 15 June, 1967], No. 4071/68. Heading E1W. Expanded polystyrene ceiling panels are suspended by support members each comprising a coil portion 6 having a pointed end so that it may be screwed into a panel, and a ring portion 7 engaged by a connection member 3 which in turn engages, a purlin 4.
Patent GB-311671-A (GB)
Title: Improvements in the manufacture and production of 1.3-butyleneglycol
IPC: C07C31/20
Filed: 1928-02-09
Abstract: 311,671. Johnson, J. Y., (I. G. Fabenindustrie Akt.-Ges.). Feb. 9, 1928. 1: 3-Butylene glycol. - Adol is reduced to 1: 3-butylene glycol by passing it in the liquid or dissolved state together with hydrogen or gases containing the same over a hydrogenating catalyst at a temperature above 50‹ C., for example, 50-110‹ C. Suitable catalysts comprise nickel, cobalt, copper, or mixtures, with or without the addition of activators such as alumina and the like. Carriers may be used. The amount of hydrogen employed is preferably in excess of the quantity needed for reduction and is used at pressures of 20-100 or more atmospheres. The aldol may be used alone or with inert solvents like water, alcohol, &c., and the condensing agent employed in its manufacture need not be removed, but should be neutralized.
Patent GB-1027106-A (GB)
Title: A lamp holder, primarily for use with circuit boards
Inventor: GREASLEY ERIC ARTHUR
IPC: H01R33/09
Filed: 1964-01-31
Abstract: 1,027,106. Lamp-holders. PRESSAC Ltd. Jan. 14, 1965 [Jan. 31, 1964], No. 4183/64. Heading H2E. A pair of springy contacts 12, provided in one part 1 of a moulded twopart lamp-holder assist in retaining a capless electric lamp 4 in the holder by forcing notches 11 against projections 10 provided on the second part 2 of the lamp-holder. The two parts of the lamp-holder are a snapfit together, and the contacts 12 are merely held in the lamp-holder by being clamped between the two parts as shown. The lamp-holder may be mounted in a printed circuit board in a bayonet-type manner so that the board is trapped between a shaped surface 2d and the contacts 17.
Patent GB-653640-A (GB)
Title: Improvements relating to suction cleaners
Inventor: BELL WILLIAM CHARLTON
IPC: A47L9/32
Filed: 1948-02-13
Abstract: 653,640. Handles for suction cleaners &c. HOOVER, Ltd.. and BELL, W. C. Feb. 13, 1948, No. 4222. [Class 61(i)] [Also in Group XXVIII] A handle for an electric suction cleaner or the like (see Group XXVIII), is formed in two tubular sections A, B having adjacent ends A<SP>2</SP>, B<SP>3</SP> telescoped and clamped together by a bolt D and jaws E', E<SP>2</SP>. The clamp also supports the electric cable G clear of the floor.