baber/WOPTO huggingface dataset:
Patent GB-335834-A (GB)
Title: Improvements in or relating to direction finding aerial arrangements
IPC: H01Q7/04
Filed: 1929-12-11
Abstract: 335,834. Telefunken Ges. f³r Drahtlose Telegraphie. Jan. 16, 1929, [Convention date]. Aerials.-A frame aerial, specially suitable for aircraft, is enclosed in a weather-proof protecting tube, which is adapted to be swung down from the vertical to the horizontal plane when not in use, so as to reduce wind resistance. The mechanism for raising the frame into the vertical plane is shown in the Figure. Cords or chains k<1>, k<2> are fastened to a lug l on the protecting- tube d containing the windings a (shown in crosssection). The ends of the cords are fastened at m<1>, m<2> to nuts i<1>, i<2>, which move in opposite directions along a right-and-left-handed screw shaft n as the wheel r is rotated, thereby swing- ing the frame aerial up into the vertical plane. The frame can be locked in the horizontal position by inserting a bolt t into a lug u in a fixed bearing o. When the frame aerial is in the vertical or receiving position, the bolt t is thrown over into engagement with a lug v on the wheel r. This permits the aerial to be swung into any desired position by the wheel s, as the spindle g and sleeve q can then rotate freely over the fixed bearing o.
Patent GB-810370-A (GB)
Title: A method of increasing the resistance of metals to wear and seizing
Inventor: FOUCRY JEAN XAVIER
IPC: C23C8/28
Filed: 1957-12-09
Abstract: The method of the parent Specification is extended to the treatment of parts fabricated from titanium and titanium alloys.
Patent GB-1360795-A (GB)
Title: Siphon containers
IPC: B67D1/04
Filed: 1970-08-10
Abstract: 1360795 Siphon bottles BRITISH OXYGEN CO Ltd 6 Aug 1971 [10 Aug 1970] 38397/70 Heading F1R A siphon head comprises an outlet passage 16 with a dispensing valve 12, 14, 18 for liquid and an inlet passage 42, 46 for gas extending through part of the dispensing valve and communicating with the siphon bottle through a non-return valve 12, 48. The dispensing valve member 12 is operated by a spring-biased lever 26 having an extension 22 which seats in a recess 20 in valve member 12. A charging plug 34 has a screw-threaded portion 36 for attachment of a compressed gas bulb holder and the inlet passage is provided with a hollow piercing member 42 for piercing the gas bulb seat. In another embodiment the outlet passage is movable and seats against a resilient seat supported by a member through which the inlet passage extends.
Patent GB-943735-A (GB)
Title: Apparatus for the longitudinal cutting of moving sheets of paper, fabric, synthetic resin or the like
IPC: B26D7/26
Filed: 1962-10-11
Abstract: 943,735. Slitting apparatus. -MASCHINENFABRIK GOEBEL G.m.b.H. Oct. 11, 1962 [Oct. 14, 1961], No. 38615/62. Heading B4B. Apparatus for slitting paper or other sheets comprises auxiliary blades 4 coacting with main blades 3, Fig. 1, the main blades engaging in grooves provided in the auxiliary blades and pressed axially against the cutting edges of the auxiliary blades, the blades 4 together with the bushes 12, 16, Fig. 2, in the absence of a shaft extending through the assembly, being engaged at their periphery by at least three rotatable axially parallel rollers 2, 6, 11, Fig. 1, and held against axial movement by being rotatably mounted on a holder with a thrust bearing at each end of the blades 4. The blades 4 and bushes 12-16 are engaged at the opposite ends of the assembly by thrust members 19, 20, Fig. 2, which are urged into engagement with the end bushes 15, 16 by collars 25, 26 on shafts 21, 22 secured in the frame structure with ball bearings 27, 28 mounted between the thrust members and the collars. The blade assembly 3 is mounted in individual holders pivoted to and secured on a supporting shaft 5. A sheet of material 1, Fig. 1, is wound up when slit on reels 8. To change the position of the blades, the roller 6 is raised out of position, the main blade assembly is deflected, and the shafts 21 or 22, Fig. 2, slightly withdrawn axially so that the blade assembly is freed for reconstruction, the blades and bushes being readily detachable.
Patent GB-1253598-A (GB)
Title: Aqueous dispersions containing tetrafluoroethylene polymers
IPC: C08F2/22
Filed: 1969-08-01
Abstract: 1,253,598. Aqueous tetrafluoroethylene polymer dispersions. FARBW'ERKE HOECHST A.G. 1 Aug., 1969 [7 Aug., 1968], No. 38710/69. Heading C3P. An aqueous polymer dispersion having a solids content of from 15 to 40% by weight based on the dispersion, wherein the particles have a core consisting of a copolymer of from 90 to 99% by weight of tetrafluoroethylene, based on the copolymer, and at least one comonomer of the formula R 1 R 2 C = CR 3 R 4 , in which at least one of the radicals R 1 , R 2  and R 3  represents a chlorine, bromine, iodine or hydrogen atom and each of the remaining radicals, which may be the same or different, represents a halogen atom or a perhalogenoalkyl or a perhalogenoalkoxy group having from 1 to 10 carbon atoms, two of the groups possibly being linked by a perhalogenated carbon bridge having from 1 to 10 carbon atoms, and an outer shell consisting of polytetrafluoroethylene, which particles have an average diameter in the range of from 0-2 to 0-5 microns, and an average core diameter of from 0-01 to 0-2 microns and wherein the copolymer of the core has a transition point of the crystalline phase in the range of from 290‹ to 322‹ C. may be prepared by (a) copolymerizing in aqueous or non-aqueous dispersion in the presence of an initiator and an emulsifier the tetrafluoroethylene and comonomer to. give a dispersion having a solids content of from 5 to 15% by weight, based on this dispersion; and (b) homopolymerizing tetrafluoroethylene in aqueous dispersion in the presence of some or all of the copolymer dispersion obtained in step (a) and of an initiator and an emulsifier. In the examples tetrafluoroethylene is copolymerized with CF 2  = CFCI, CF 2  = CFBr, CF 2  = CFI, CF 2  = CFH, CFCI = CFCI, CF 2 Cl-CF=CF 2 , CF 3 -CCl=CCl-CF 3  and CCl 2  = CCl 2  in the presence of water, perfluoroammonium octanate, sodium bisulphite, hydrocarbon oil and ammonium persulphate and then tetrafluoroethylene homopolymerized in the presence of these seed dispersions and the same polymerization ingredients. The dispersions may be coagulated by rapid stirring.
Patent GB-1163912-A (GB)
Title: Improvements relating to Electric Power Transmission Systems
Inventor: WILCOX THOMAS WEBSTER
IPC: H01H75/04
Filed: 1966-08-30
Abstract: 1,163,912. Electric transmission and earthing systems. MERZ & MCLELLAN SERVICES Ltd. 24 Aug., 1967 [30 Aug., 1966], No. 38721/66. Addition to 1,015,531. Heading H2H. The electric power transmission system of the parent Specification is modified for use with a Tee junction in which power is supplied exclusively through one leg. Accordingly, only this leg is provided with an auto-reclosing circuit breaker and the isolating switch in the tee-off is actuated during the dead time between opening and reclosing of this breaker. The method of operation and applications of the invention are otherwise similar to the disclosures in the parent Specification.
Patent GB-357887-A (GB)
Title: Method of treating cadmium plated goods
IPC: C25D5/48
Filed: 1930-12-23
Abstract: 357,887. Electroplating. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Ncal, C. T. ; 3rd National Bank Building, Springfield, Massachusetts, U.S.A.) Dec. 23, 1930, No. 38758. [Class 41.] Cadmium-plated articles are given a lustrous surface by subjecting them after withdrawal from the electrolytic bath without drying to the action of an extremely dilute aqueous solution of nitric acid. The articles may be dipped in the brightening bath immediately or they may be allowed to stand in the electrolytic bath with the current turned off or in cold water. Preferably they are washed in cold water so as to remove part but not all of the adherent alkaline electrolyte. The brightening bath preferably consists of a solution of 1 oz. commercial nitric acid (s.g. 1.355) to 1 gallon of water. The period of immersion should be 5-15 seconds. After treatment the articles are rinsed and dried. Cadmium surfaces which have become dull are subjected to a momentary further plating and then treated as above.
Patent GB-1312560-A (GB)
Title: Treating non-woven fabrics
IPC: D04H1/54
Filed: 1971-08-19
Abstract: 1312560 Permeable non-woven fabrics MONSANTO CO 19 Aug 1971 [19 Aug 1970] 38865/71 Heading D1R The air permeability of non-woven webs is reduced by hot calendering. In the preferred embodiment an air laid web, weighing not more than 2 oz./sq. yd., of continuous partly, completely or non drawn nylon 66 filaments is bonded by exposure to hydrogen chloride gas or by the application of heat or solvent, then calendered between a solid steel roll at 300-400‹F and an unheated compressible roll having a cotton outer layer and a steel core at 1000 to 2000 lbs./linear inch. The calendering flattens the fibres but does not increase the number of bonds, and gives an air permeability of 1 to 100 cu. ft./minute/sq. ft. at 0.5 inch water pressure. More permeable fabrics result from calendering a meltbonded continuous polyester filament web, an acrylic latex bonded continuous nylon filament web and a silicone latex bonded web of mixed nylon 1 regenerated cellulose staple fibres.
Patent GB-1153904-A (GB)
Title: Process for the Preparation of New Thiazole-Derivatives
IPC: D04H3/04
Filed: 1966-08-31
Abstract: 1,153,904. Benzimidazole derivatives. CHINOIN GYOGYSZER ES VEGYESZETI TERMEKEK GYARA RT. 31 Aug., 1966 [8 Sept., 1965], No. 38925/66. Heading C2C. Benzimidazole derivatives of the formula wherein R represents hydrogen, halogen or a hydroxy, alkoxy, aryloxy, amino, carboxylic acyl, alkylamino, diazonium, or thioalkyl group, are prepared by subjecting to ring closure thiazole carboxamides or their thio or imino analogues of the formula where R<SP>3</SP> represents a = O, = S or = NH group and hlg represents halogen, and if desired, transforming the halogen group into another group R by known methods. The invention also comprises the above benzimidazole derivatives in which R represents halogen or a hydroxy, alkoxy, aryloxy, amino, alkyl amino, diazonium or thioalkyl group and their salts as new compounds. Pharmaceutical or veterinary compositions having anthelmintic properties contain as active ingredient the above benzimidazole derivatives. The composition may be in a form suitable for oral, rectal or parenteral application or in the form of powder which may be added to an animal's food in aqueous suspension.
Patent GB-1120558-A (GB)
Title: Improvements in or relating to printing presses
IPC: B41F31/30
Filed: 1966-09-01
Abstract: 1,120,558. Rotary printing machines. PAPER CONVERTING MACHINE CO. Inc. 1 Sept., 1966 [18 Oct., 1965], No. 39029/66. Heading B6C. In a web-fed rotary printing machine in which six plate cylinders with associated equipment are spaced around the circumference of a single impression cylinder each plate cylinder 12 is mounted on a slidable carriage 17 which is itself slidably mounted on a slidable carriage 16 mounting an ink forme roller 13. The latter roller is part of a unit which also comprises a coacting ink fountain 15 and a fountain roller 14. The carriage 16 is slidably actuated by a pressure fluid piston and cylinder arrangement 18 located at each side of the machine and the two slidable carriages are so interconnected that when the arrangements 18 are actuated to trip the cylinders both carriages are pushed away from the impression cylinder. Pressure fluid piston and cylinder arrangements 19 are also located at each side of the machine connecting the framework of the machine to the carriage 17. By means of an electrical control circuit and a delay time switch the arrangements 19 initially operate in the direction opposed to the arrangements 18 so that as the carriage 16 is pushed from the impression cylinder the carriage 17 is held. This ensures the opening of a gap between the ink forme roller 13 and the plate cylinder 12 before establishing a gap between the two cylinders 11 and 12. By appropriately setting the delay time switch the lag between the establishment of the two gaps may be arranged to represent one revolution of the plate cylinder thus ensuring that the latter cylinder is wiped clean of ink before the machine is stopped.
Patent GB-1033798-A (GB)
Title: Improvements in fuel injection pumps
IPC: F02M57/02
Filed: 1964-09-25
Abstract: 1,033,798. Fuel injection pumps. ROBERT BOSCH G.m.b.H. Sept. 25, 1964 [Sept. 28, 1963], No. 39180/64. Heading F1A. In a fuel injection pump comprising a plunger 16 rotatable by means of a rack 27 to vary the pump delivery, the plunger is biased by a helical spring 29 to maintain the teeth on sleeve 21 in contact with those of the rack and member 25 engaged by the spring in contact with depending lugs 24 on the sleeve. The spring 29 tends to rotate the plunger towards the larger delivery as controlled by the control edge 32 on the piston. The lower end of the spring is anchored in hole 30 in retaining plate 21 secured against rotation in the pump body 1. In a multi-plunger pump the torques of the individual plunger springs 29 act together on the rack 27.
Patent GB-1501039-A (GB)
Title: Electric cells provided with negative electrodes of lithium or calcium
IPC: H01M4/13
Filed: 1976-09-22
Abstract: 1501039 Li or Ca electrodes VARTA BATTERIE AG 22 Sept 1976 [17 Oct 1975] 39319/76 Heading H1B Electric cells are described containing metallic Li or Ca as the negative electrode material, characterized in that before being inserted in the cells, the electrode metal is stored in a gaseous atmosphere of SO 2 , SF 6  or CO 2  to produce a thin, dense, non-hygroscopic film on the surface of the metal. An inert gas (e.g. Ar or He) may be admixed with these gases prior to treatment. Treatment is preferably undertaken at 80 to 160 C. Exemplified are the preparations of button-type Li cells and lithium cells having spirally wound electrodes, both using LiClO 4  as electrolyte.
Patent GB-345623-A (GB)
Title: Improvements in and relating to the manufacture of dyestuffs
IPC: C09B3/32
Filed: 1929-12-24
Abstract: Chlorinated violanthrones having a high chlorine content are obtained by chlorinating violanthrone with sulphuryl chloride in large excess at temperatures below 80 DEG  for an extended time without catalyst, or for a shorter time with halogenating catalysts.  According to examples violanthrone is heated first in nitrobenzene and cooled and then heated with excess of sulphuryl chloride (a) without catalyst to 70 DEG , (b) with iodine catalyst to 70 DEG , (c) with ferric chloride to 65 DEG , followed by iodine to 70 DEG ; treatment with iodine as catalyst at varying temperatures is also further specified. Specifications 22519/05, [Class 2, Acids and salts, Organic &c.], 262,774 and 278,834, [both in Class 2 (iii), Dyes &c.], are referred to.
Patent GB-1073998-A (GB)
Title: High vacuum leak valve
IPC: F16K51/02
Filed: 1965-09-16
Abstract: 1,073,998. Valves. VARIAN ASSOCIATES. Sept. 16, 1965 [Sept. 30, 1964], No. 39636/65. Heading F2V. A vacuum leak-valve with a two-part stainless-steel body 12, 13, Fig. 1, has a lift-type closure-member at one end of a spring-loaded piston 16, which member is formed from, e.g., sapphire or carbide with an optically-smooth closure-surface. The piston 16 is connected to the body by a diaphragm 60 welded therebetween. The valve seat 20 consists of a threaded stainless-steel retaining-sleeve (38, Fig. 2, not shown), a copper gasket (21) forming an annular tapered or curved seating-surface and a stainless steel collar (39), the interengaging surfaces of which are crushed during assembly to provide a vacuum-tight seal. The piston 16, Fig. 1, is moved exponentially when the valve is nearly closed, very fine control of valve movement being effected by a screw 52 through an actuator 22 embodying a rod 36. with a ball at each end; coarse adjustment is done by a screw 50 threaded into a handle 48 pivoted about a rod 49. The fine-adjustment screw 52 has locking means. The valve may have to be baked to drive-off absorbed vapour when used with very small leak rates.
Patent GB-1518287-A (GB)
Title: Non-contact dimensional measurement technique
IPC: G01B11/04
Filed: 1975-09-29
Abstract: 1518287 Contactless dimension measurement SOC SUISSE POUR L'INDUSTRIE HORLOGERE MANAGEMENT SERVICES SA 29 Sept 1975 [31 Oct 1974] 39751/75 Heading G1A A method of guaging an object comprises illuminating it with a low divergence light beam to form a shadow, which is a silhouette of it, the outline of which is defined by a Fresnel diffraction zone, scanning the shadow along a predetermined path to provide an electrical signal dependent on brightness and analyzing it to determine the point in this zone with a brightness which is a predetermined percentage of what it would be without the object and from it deriving information about a dimension of the object. Light from an incandescent source is directed by an off-axis collimating mirror via the object, an apertured rotative disc and condensor lens to a photo-resistor feeding an analogue gating circuit feeding a microcomputer programmed to derive dimensional information and carry out controls such as rejection of objects outside a specified tolerance. In a second embodiment a beam from a laser is expanded by two converging lenses and an image dissecting scanner tube is used. The signal is fed to a number of electronic comparators in parallel. When the signal exceeds a reference level, as A 1  A 2  etc; for a given comparator, it sends a signal to a computer interface, which also receives a signal indicating the time t 1 , t 2  etc. or the position and sends on the information to a computer. By comparison with mapped information of the signal in the absence of the object, the point at which the brightness is 25% of that without the object is determined. Analogue to digital converters may be used.
Patent GB-973088-A (GB)
Title: Improvements in or relating to electric comparator circuits
Inventor: INGRAM DEREK GEORGE WOODWARD
IPC: H03K5/22
Filed: 1961-11-07
Abstract: 973,088. Bridge circuits. GENERAL ELECTRIC CO. Ltd. Nov. 6, 1962 [Nov. 7, 1961], No. 39840/61. Heading G1U. [Also in Division H4] An electrical comparator for use e.g. in the multichannel pulse code communication system described in Specification 973,087 comprises a bridge 4 including two arms formed by semiconductor junction diodes biased to act as voltage variable capacitors across which, respectively, the voltage being compared and a standard voltage are applied, an oscillator 10 connected across one diagonal of the bridge and an amplifier 12, which receives an input from the other diagonal of the bridge, connected via a limiter 13 to a phase sensitive demodulator 14, which also receives an input from the oscillator and provides a positive going pulsed output when the bridge is on one side of balance and a pulsed output of opposite polarity when the bridge is on the other side of balance. When impedances 19, 20 are also compositive the voltages between points 3, 7 and earth are in phase with the oscillator output and when the voltage applied at terminals 1, 2 across diode 17 exceeds the standard voltage applied at terminals 21, 22 across diode 18 the signal output of the limiter is in phase with the oscillator voltage and when the standard voltage is the greater the output from the limiter and the oscillator are in antiphase. Specification 973,089 also is referred to.
Patent GB-1097388-A (GB)
Title: Improved method for the manufacture of paper
Inventor: FOSTER WILLIAM ALBERT
IPC: D21H17/45
Filed: 1965-09-21
Abstract: A modified polymer is obtained by first dissolving in water a polyacrylamide in which some of the polymerized carboxamide groups have been hydrolysed to sodium carboxylate groups, and then adding formaldehyde and dimethylamine hydrochloride in amount stoichiometrically equivalent to half of the available carboxamide groups, thereby converting -CONH2 groups to -CONHCH2N(CH3)2 groups. The pH is lowered to 10.5 and the solution allowed to react at room temperature. Reference is also made to reaction products of formaldehyde and dimethylamine or diethylamine hydrochloride with polymethacrylamide or copolymers of acrylamide with acrylic acid, methacrylic acid, alkali-metal salts of these acids, sodiumstyrenesulphonate, N-vinyl-pyrrolidone, N-vinylpyridine or 2-aminoethyl acrylate, or copolymers of acrylamide or methacrylamide with up to 50 mole per cent of methyl acrylate, methyl methacrylate, acrylonitrile, styrene, vinyl methyl ether or vinyl acetate.ALSO:The freeness of an acidic fibre furnish for papermaking is improved by adding a water-soluble polymer containing in its molecule a multiplicity of units:  <FORM:1097388/D1-D2/1> where R\sv is hydrogen or methyl and each R independently is methyl or ethyl, or the corresponding salt formed by the addition of an acid, e.g. hydrochloric, hydrobromic, sulphuric, nitric, phosphoric, acetic or chloracetic acid.  The polymer may be added as a dilute aqueous solution at the inlet side of the fan pump or at the entry to the headbox.  The furnish may contain alum.  The polymer may be obtained by first dissolving in water a polyacrylamide in which about 4% of the polymerized carboxamide groups have been hydrolysed to sodium carboxylate groups, and then adding formaldehyde and dimethylamine hydrochloride in amount stoichiometrically equivalent to half of the available carboxamide groups.  The pH is lowered to 10.5 and the solution allowed to react at room temperature.  Reference is also made to reaction products of formaldehyde and dimethylamine or diethylamine hydrochloride with polymethacrylamide or copolymers of acrylamide with acrylic acid, methacrylic acid, alkali-metal salts of these acids, sodium styrene sulphonate, N-vinyl-pyrrolidone, N-vinylpyridine or 2-aminoethyl acrylate, or copolymers of acrylamide or methacrylamide with up to 50 mole % of methyl acrylate, methyl methacrylate, acrylonitrile, styrene, vinyl methyl ether or vinyl acetate.
Patent GB-1021808-A (GB)
Title: Mobile filter assembly
IPC: B01D35/027
Filed: 1964-10-05
Abstract: 1,021,808. Mobile filter device. ROSAEN FILTER CO. Oct. 5, 1964 [Oct. 3, 1963 (2)], No. 40454/64. Heading B1D. A mobile filter device has a slidable valve member which operates a by-pass when the filter element has become clogged and also operates a clogging indicator. The filter element 270 is maintained in a fixed position within a housing 212 and is freely removable for cleaning by removing the housing from within a fixed tubular member 222 and unscrewing a nut 282. During filtration liquid is pumped by pump P through the inlet end of the tubular member, through the one or more cylindrical filter elements 270, and via a passage 250 to the outlet 242. The valve member 286 is biased by a spring 296 against the outlet end of the filter element and prevents passage of liquid other than through the filter element. On clogging the pressure differential is such that the valve member slides along the central guide surface 284 against the spring causing rotational movement of an external pointer 408 and allowing liquid to by-pass the filter. A ported baffle member 256 may be carried by the housing 212, the baffle normally providing via ports 262 communication between the filter element outlet and the outlet 242. The valve member slides on the baffle when clogging occurs and liquid may then flow through side ports 266 to the outlet 242 so by-passing the element. A sight tube 414 and air-cock may be provided. A rigid conduit 248 supports the housing structure and connects it to the pump.