baber/WOPTO huggingface dataset:
Patent GB-1342832-A (GB)
Title: Printed circuit boards
IPC: H01R12/51
Filed: 1971-04-19
Abstract: 1342832 Electric couplings SPERRY RAND CORP 19 April 1971 [2 Feb 1970] 20682/71 Heading H2E To interconnect circuit boards having conductor patterns and plated holes formed by conventional techniques, springs 26 held in longitudinal compression by a dip solder coating are inserted between the surfaces to be connected, within apertures defined by insulating sheets 24, the stack clamped, and heat applied to melt the solder so that the springs expand into firm contact with the conductive portions 22 &c. and are soldered thereto when the stack is cooled. The springs may be radially compressed, by twisting them on a mandrel before dip soldering, to effect a connection as shown in Fig. 2.
Patent GB-395519-A (GB)
Title: Machine for knitting fabric
IPC: D04B9/06
Filed: 1932-07-22
Abstract: 395,519. Knitting-machines. WALTON, 0. H., 375, Highland Avenue, Needham Heights, Massachusetts, U.S.A. July 22, 1932, No. 20711. f_Class 74 (ii).] Means are provided for feeding an elastic or other strand in such position that it is pierced by the hooks of the needles so that loops of the ground yarn are drawn through it. As described in connection with a circular rib machine of the stationary needle cylinder and dial type, an elastic strand 43 is positively fed into the groove of a grooved roll 73 by which it is pressed against a second roll 74 in such position that it is pierced by the hook 84 of each of a number of cylinder needles 29. Subsequently it is pressed by a guide plate 81 over the top of the hook to a position adjacent the loop held by the needle 29 and is cast off with that loop. Alternatively, a third roll 92, Fig. 17 (not shown), may be substituted for the guide plate 81. The roll 74 is provided with vertical grooves 80 for receiving the needles. The strand-feeding means comprises a pair of rolls 48, 49 driven by pinions 50, 51. The upper roll 48 is pressed by an adjustable spring 59 in contact with the other roll. The strands 43 preferably comprises a core and covering yarns arranged helically thereabout in opposite directions.
Patent GB-615688-A (GB)
Title: Improvements in colour characteristics of polymers
IPC: C08J3/09
Filed: 1946-07-12
Abstract: Colour formation is minimised in solutions of polymers or copolymers of acrylonitrile in a solvent containing an organic base or a compound capable of liberating an organic base, by adding to the solvent, before or after formation of the solution, a substantially colourless compound which reacts with the organic base to yield substantially colourless reaction products. Specified solvents are dimethyl formamide, succinonitrile, N-formyl morpholine, N-formyl pyrollidine, N.N-dimethyl methoxyacetamide and N-formyl hexamethylene imine.  The colourless compounds include colourless aldehydes, ketones, organic and inorganic acids and anhydrides and organic acid halides, e.g. succinic anhydride, phthalic anhydride, p-toluene sulphonyl chloride, trioxymethylene, isobutyraldehyde, cyclohexanone, vinyl sulphonic acid, sulphuric acid, oxalic acid, boron trifluoride and sodium p-toluenesulphonate.  The solutions produced may be converted by removal of solvents to shaped articles such as filaments, yarns and films.  Specifications 404,504, 579,887, 595,043 to 595,052 and 603,873 are referred to.
Patent GB-501643-A (GB)
Title: Method of identifying mixtures of textile fibres
IPC: D06P5/13
Filed: 1937-07-28
Abstract: 501,643. Mixing fibres. FRANZ, E., and KAMMGARNSPINNEREI STOHR & CO. AKT.-GES. July 28, 1937, No. 20883. [Class 120 (iii)] [Also in Group IV] A method of indicating at least one of the components of a mixture of textile fibres of different characteristics consists in marking said component by depositing thereon manganese dioxide or manganic hydroxide so as to differentiate such component from the others. Mixtures of fibres so marked indicate by uniformity of the colour when a homogeneous mixture has been obtained. The deposit is subsequently reduced by oxalates, sulphites or other reducing agents, preferably in the presence of aluminium sulphate or alum, the fibres being simultaneously bleached. The manganese dioxide may be applied in grease, or it may be formed on fibres which have been rendered greasy. According to the Provisional Specification, in place of manganese dioxide there may be used complex metal salts of conspicuous colour and pigmental character such as enolates, ferrocyanides, oximes, iodide of starch, purple of Cassius, the blue reduction compounds of tungsten, molybdenum phosphate and similar salts of heteropoly acids.
Patent GB-1216854-A (GB)
Title: Photographic developer composition
Inventor: TABASTE JOSETTE ANNIE
IPC: G03C5/305
Filed: 1967-05-05
Abstract: 1,216,854. Photographic developers. KODAK Ltd. May 2, 1968 [May 5, 1967], No.20912/67. Heading G2C. Photographic developers comprise (1) an inorganic alkali, (2) at least two organic silver halide developing agents, (3) a mercaptosubstituted nitrogen-containing heterocyclic antifoggant, and (4) a benzotriazole antifoggant. Preferably the developer is an aqueous solution containing (1) an alkali metal hydroxide, (2) a mixture of hydroquinone and 1-phenyl-3- pyrazolidone or a 4-substituted derivative thereof, (3) 1-phenyl-5-mercapto-tetrazole, and (4) 5 -methyl -benzotriazole.
Patent GB-928145-A (GB)
Title: A sealed magnetic contact device
IPC: H01H51/28
Filed: 1961-06-09
Abstract: 928,145. Electromagnetic relays. STANDARD TELEPHONES & CABLES Ltd. June 9, 1961 [June 10, 1960], No. 20948/61. Addition to 907,519. Class 38 (5). A sealed magnetic contact device as claimed in Claim 1 of the parent Specification, has a contact at or near the end of a magnetizable movable member and a leaf-spring attached to the opposite side of the movable member to the side which carries said contact. In Fig. 1 the movable armature 4 carries a contact 5 cooperating with a fixed contact 3 and is welded at 7 to a leaf-spring 6 which is welded at 8 to the bar 2 and extends from the free end of the bar 2 to a point opposite the contact 3 to damp contact bounce. A spring 11 locates the contact assembly in the sealed glass housing 8. In Fig. 2, a leaf-spring 7 biases the armature 5 into engagement with magnetic contact pin 4<SP>1</SP> and away from magnetic contact pin 2<SP>1</SP>. The spring hinge 6 electrically connects the armature 5 and pin 3<SP>1</SP>. The cap 8 may be metallic. 'Specification 829,066 also is referred to.
Patent GB-1280451-A (GB)
Title: Improvements in and relating to methods of explosively welding tubes into tube plates
Inventor: CHADWICK MICHAEL DICKENSON
IPC: B21D39/06
Filed: 1968-05-02
Abstract: 1280451 Welding by pressure INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 7 July 1969 [2 May 1968] 20957/68 Heading B3R In welding a metal tube 3 to a bore 2 in a metal tube plate 1, a parallel sided space is formed between the outer surface of the wall of the tube and the wall of the bore over a portion of the length of the tube, an explosive charge is inserted coaxially into the tube, the wall of the portion of the tube or a metallic member interposed between the wall and the charge having a tapering inner surface surrounding the charge, and the charge is detonated from the end thereof where the inner surface has its largest diameter so that an interface between the tube and plate is created progressively at a rate which is not greater than the speed of sound in the tube material or plate material whichever is the lower. A tube 3, Fig. 1a is arranged in a bore 2 in a tube plate 1, the bore having an enlarged portion 4 to form a parallel sided space between the tube and bore, and a cone shaped explosive charge 5 is inserted in the end of the tube, the apex being directed away from the free end 3a of the tube as shown or towards the free end. The charge is enclosed in a metal cone 7 and the space is evacuated or contains air. In a modification a cylindrical charge is employed in a bore in a body of polythene whose end is enclosed in a metal cone, for welding a stainless steel tube in a stainless steel tube plate using in one case an enclosing cone of lead and in another stainless steel, neither of which becomes welded to the inside of the tube. The protruding ends of the tubes were cut off during welding. In other embodiments the wall of the tube is tapered towards the free end (although it may be tapered in the opposite direction) and a body of polythene fills the space between the tapered portion of the tube and a hollow conical explosive charge having a solid polythene core or a cylindrical explosive charge. In an embodiment using a tube 3, Fig. 3a, of constant wall thickness a metallic, e.g. stainless steel insert 16 is positioned between the tube wall and a hollow conical explosive charge 17 filled with air, liquid or solid 19 and having a polythene sheath 18. The assembly 16, 17, 18, 19 may face in the opposite direction. Instead of a conical charge a cylindrical charge in a polythene cone may be employed.
Patent GB-356861-A (GB)
Title: Improvements in and relating to cigarettes and the like
IPC: A24D1/08
Filed: 1930-07-10
Abstract: 356,861. Cigarettes. SUTHERLAND, R., 3, Lombard Street, London. July 10, 1930, No. 20962. [Class] 130.] An igniting tip b is formed on the end of a sheath a. Perforations f serve for ventilation. After ignition the unburnt portion may be separated at the perforations and be used as a mouthpiece. The material of the sheath may be impregnated like touch paper.
Patent GB-294258-A (GB)
Title: Improvements in the transport of glass plates through annealing ovens
IPC: C03B25/08
Filed: 1928-07-20
Abstract: 294,258. Naamlooze Vennootschap Mij.tot Beheer en Exploit. van Octrooien. July 22, 1927, [Convention date]. Charges, conveying. - Glass plates are moved through the hottest part of an annealing oven by pushers, which are supported by vertically and horizontallv movable members located below the level of the hearth and outside the hottest zone. In the construction shown three pusher members c are carried by inverted U-shaped supports f, the vertical limbs of which pass into side recesses below the glass-supporting surface of the oven where they are connected by longitudinal bars g. These bars rest on rollers h carried by rails o, which are in turn supported by transverse beams p suspended by rods r from the overhead rocking-levers k. The pusher members c can be raised and lowered by the levers k and moved lengthwise of the oven by an endless chain s. The side ba,rs g and the supports f may be made hollow for the circulation of cooling-air, and the supports f may be additionally protected by a covering of heat-insulating material. In operation plates are fed into the oven, one or more at a time, from travelling tables by a stowing tool, and are then advanced step by step by the pushers c, which are lowered behind the plates, advanced by the chains s, raised, and then retracted for a fresh cycle of movements.
Patent GB-279206-A (GB)
Title: Improvements in or relating to control columns for aircraft
IPC: B64C13/04
Filed: 1926-08-27
Abstract: 279,206. Jackson, L. Mellersh-, (Ruy Machado da Cruz & Co.). Aug. 27, 1926. Controlling. - In a shockabsorbing control column the handle S of which is mounted upon a shaft B slidable within a casing against the tension of a helical spring M or dashpot, the casing is formed of two semi-cylindrical portions c, c<1> secured together by bolts P, p'. The shaft B slides on two keyways K clamped between the parts c, c<1>.
Patent GB-205921-A (GB)
Title: Improvements in the control of electric motors driving planing and like machines
IPC: B23Q15/007
Filed: 1922-08-04
Abstract: 205,921. British Thomson-Houston Co., Ltd., Given, R. D., and Trutch, C. J. H. Aug. 4, 1922. Electric braking.-In an arrangement for dynamically braking a shunt or compound motor driving, planing or other machinery, an additional field winding in series with a braking resistance, is connected to the motor. Before restarting, the shunt field is strengthened by shortcircuiting resistance. Mechanical interlocks are provided between running contactors and braking contactors. In the arrangement shown in Fig. 1, the motor-armature 9 runs on a series field 11 and a shunt field 10, the additional field 12 being unconnected. The act of opening the running contactors, i.e. either the forward contactors 1, 2 which run the motor for the cutting stroke, or the reverse contactors 3, 4 which produce the return stroke, is accompanied by closure of one pair of four braking contactors 19, 20, 21, 22, establishing a dynamic braking circuit through the field 12 and resistance 13. The mechanical connections between the running and braking contactors are arranged to act as mutual interlocks. To obtain a strong field for the cutting stroke, a resistance 15 connected to the shunt winding 10 is short-circuited by an electromagnetic contactor 28. In modified arrangements, different amounts of braking resistance are used during the working stroke and the reverse stroke. Specification 12941/14 is referred to.
Patent GB-864296-A (GB)
Title: Two-chain conveyor wherein the scraper flights are connected to continuous chains
IPC: B65G19/10
Filed: 1957-07-08
Abstract: 864,296. Scraper conveyers. GEWERKSCHAFT EISENHUTTE WESTFALIA. July 8, 1957 [July 12, 1956], No. 21586/57. Class 78 (1). [Also in Group XXV] The scraper flights 10 of a double chain scraper conveyer are connected to a pair of round-link chains by two-piece connecting- devices, each of which consists of two pieces 12, 13, which are secured at one end to opposite sides of the flight 10 by a bolt 16, the piece 12 having a lug 17 which extends downwardly through the opening in a horizontal link 11 of the chain, while the piece 13 is bent to Z-shape so that its free end 19 engages behind the lug 17 (see Fig. 2). The end 19 may be in the form of a hook to engage around lug 17. The piece 12 also carries a bulbous portion which acts as a wearing-piece to engage a chain guide track.
Patent GB-1045373-A (GB)
Title: Semiconductor device and assembly method
IPC: H01L21/60
Filed: 1965-05-21
Abstract: 1,045,373. Connecting leads to semi-conductors. INTERNATIONAL STANDARD ELECTRIC CORPORATION. May 21, 1965 [May 26, 1964], No. 21596/65. Heading H1K. A connection is made to a semi-conductor electrode 12 by applying thereto solder 18 containing a major proportion of tin, cutting a gold wire 22 fed through a capillary tube 24, with a hydrogen flame to form a blob 26 and pressing the blob and the heated solder together to form an alloy which may contain Si. A silicon oxide layer 14 is provided for the device whilst the N<SP>*</SP> layer 16 has a nickel layer 20 applied thereto. In a modification an additional layer of opposite conductivity type (N) may be diffused into region 12 thus giving a transistor. Gold wire 22 may be replaced by Ag or Pt. A plurality of devices of the type shown may be made in a block of silicon.
Patent GB-815164-A (GB)
Title: Improvements in or relating to processes for the production of cast resin tubes
Inventor: BLEWITT RONALD HARRY
IPC: B29C39/40
Filed: 1956-07-12
Abstract: 815,164. Moulding resin tubes. GENERAL ELECTRIC CO. Ltd. July 11, 1957 [July 12, 1956], No. 21618/56. Class 87(2). A tube is formed by casting a resin, e.g. an epoxy or polyester resin, in a mould 6 having a core 1 of flexible metarial, e.g. polyvinyl chloride, and after curing the resin the core 1 is collapsed and withdrawn from the tube. As shown the core 1 is tubular and is mounted during the casting operation on a mandrel 5, and may consist of a casting formed on the mandrel. The mandrel 5 is removed when the core 1 is to be collapsed.
Patent GB-731501-A (GB)
Title: Preparation of collagenous material
IPC: C09H1/00
Filed: 1953-08-05
Abstract: Collagenous material suitable for use in making sutures is prepared by mechanically treating connective tissue layers of mammalian gut to remove a major amount of fatty and non-collagenous materials and then steeping the tissue layers in an aqueous solution of a sodium salt of ethylenediamine polyacetic acid at a temperature not above 50 DEG C., whereby substantially all remaining fatty and non-collagenous materials are removed. Suitably, the aqueous solution contains 0.2 to 5 per cent by weight of the salt, e.g. the tri- or tetra-sodium salt of ethylene diamine tetracetic acid and may also contain an organic solvent for the fats such as n-butanol, isobutanol, propanol, isopropanol or mono-ethyl ether of ethylene or diethylene glycol. Anionic, cationic or non-ionic detergents may also be present.  The steeping may be repeated and the second steeping bath is preferably one containing, additionally, alkali sufficient to provide a pH of 8.0 to 11.5.  Examples describe the treatment of sheep submucosal layers and beef sub-mucosal and serosa layers.ALSO:Connective tissue layers of mammalian gut are mechanically treated, viz., by squeezing and scraping, to remove a major amount of fatty and non-collagenous materials and are then steeped in an aqueous solution of a sodium salt of ethylenediamine polyacetic acid at a temperature not above 50 DEG C. whereby substantially all remaining fatty and non-collagenous materials are removed from the tubes.  The aqueous solution may contain, for example, 0.2 to 5 per cent of the tr- or tetra-sodium salt of ethylene diamine tetracetic acid and, if desired, an organic solvent for the fats. Detergents may also be present.  The steeping may be repeated and then the second steeping bath preferably also contain sufficient alkali to provide a pH of 8.0 to 11.5.
Patent GB-575448-A (GB)
Title: Emulsions for painting and varnishing purposes and process of producing the same
IPC: C09D167/08
Filed: 1943-12-29
Abstract: In a water-in-oil emulsion for use in painting, varnishing or lacquering, the continuous phase contains tall resin oil and/or one or several components derived therefrom, together with an alkyd resin and/or a drying oil.  The tall resin oil may be partly or completely esterified with glycerol or with pentaerythritol, or may be hardened with lime, and the drying oil component may consist of tall fat acid esterified with glycerol or with pentaerythritol.  "Tall resin oil" and "tall fat acid" are products obtained in the vacuum distillation of "sulphate soap," a by-product from the sulphate pulp process. Specified optional additions are turpentine, mineral spirits and lithopone. According to examples, coating-compositions comprise: (1) tall resin oil, a phthalic acid-glycerol resin, turpentine and water; (2) tall resin oil, an alkyd resin, one or more drying oils such as linseed oil, wood oil or esterified tall fat acid, turpentine or mineral spirits, lithopone and water.
Patent GB-204313-A (GB)
Title: Footballs
IPC: A63B41/08
Filed: 1923-08-29
Abstract: 204,313. Binggeli, A., and Wirth, A. Sept. 21, 1922, [Convention date]. Balls.-A valve 8 is secured to the bladder 7 and to the usual flap 5 by means of a wing-nut 10 and washer 11, so that the upper end of the valve is always accessible through an aperture 15 in the cover 1 coinciding with one of the lace-holes. The valve-pin 12 is secured by a screw 13.
Patent GB-571124-A (GB)
Title: Improvements relating to heat interchange apparatus
IPC: F28F9/02
Filed: 1943-12-30
Abstract: 571,124. Radiators for aircraft &c. SERCK RADIATORS, Ltd., and GARNER, E. Dec. 30, 1943, No. 21854. [Class 64 (iii)] In apparatus for heat exchange through thin metal walls between air or other gas and a liquid, e.g., an oil cooler for an aircraft or other internal combustion engine, an inner shell a divided into compartments c by transverse partitions b, each compartment containing a tubular or other matrix d, and an outer shell f forming with the inner shell a space or spaces through which the liquid can flow are bonded together in part by portions extending from the partitions. The outer shell is formed at the top and bottom with longitudinal channel-like depressions n which abut on the inner shell, and the top and bottom edges of the partitions b are formed with projections o, Fig. 5, which extend through slots in the inner shell and in the depressions n. Ears o<1> on the projections o are spread like rivets to hold the two shells together. The partitions b have apertures or gaps at their ends for the passage of oil from one compartment c to the next. A baffle k which extends through the shell a is provided with apertures for the passage of oil. Under the control of a by-pass valve, oil either flows from an inlet g through the compartments c and the space between the shells to an outlet i, or from a second inlet, (not shown) through the space between the shells only, to the outlet i.
Patent GB-1395684-A (GB)
Title: Process for preparing starch dispersions
IPC: C08B31/00
Filed: 1973-05-08
Abstract: 1395684 Paper NATIONAL STARCH & CHEMICAL CORP 8 May 1973 [9 May 1972] 21865/73 Heading D2B [Also in Division C3] A paper of improved pigment retention is obtained by adding a cationic starch derivative to the bleached sulphite pulp prior to its conversion into paper sheets, the pigment also added being titanium dioxide. The cationic starch is obtained by reacting a starch in dilute aqueous alkaline colloidal dispersion at a concentration not exceeding 30% by weight, in the presence of a water soluble catiogenic reagent e.g. diethylamine, ammonium hydroxide triethylamine, 4-cyclohexylpiperidine, N-methylpyrrole, N-methyl piperidine, guanidine, and piperidine with a di- or polyfunctional compound having at least one functional group reactive with starch and at least one functional group reactive with the cationogenic reagent, whereby the cationogenic reagent is chemically bound to the starch molecule [see Division C3]. The difunctional reagent is preferably epichlorohydrin or 1, 4- dichlorobutene.