baber/WOPTO huggingface dataset:
Patent GB-1002118-A (GB)
Title: Improvements in or relating to high temperature silicone coating compositions
IPC: C08G77/62
Filed: 1964-05-04
Abstract: A coating composition for high temperature uses comprises a silicone resin and, per stoichiometric equivalent of the resin, from 0.4 to 4 equivalents of the reaction product of ammonia and a mixture of 20 to 80 mol. per cent of MeSiCl3 and 80 to 20 mol. per cent of Me2SiCl2 (Me = methyl).  The siloxane resin may contain alkyl, alkenyl, aryl or haloaryl radicals.  The ammonolysis of the silane mixture using liquid or gaseous ammonia is conducted at temperatures below 0 DEG C. in the absence of water and in the presence of an inert solvent, e.g. methylene chloride.  Three preparations are given.  In the coating application the silocane containing SiOH apparently combines chemically with the silazane to form further siloxane linkages. In a typical Example (1) a toluene solution of a silicone resin and a silazane was used to coat steel panels.  Aluminium powder may be added as a pigment.
Patent GB-1200441-A (GB)
Title: Apparatus for after-burning exhaust gases from internal combustion engines
IPC: F01N3/26
Filed: 1968-10-17
Abstract: 1,200,441. Purifying exhaust gases. LUFTVERBESSERUNG A. G. Oct.17, 1968, No.18536/66. Heading F1B. In an afterburner device for purifying exhaust gases, air is drawn in through pipe 7 opening between constrictions 11, 12 by the exhaust flow and the mixture ignited in chamber 4. The restriction 12 is formed by a frusto-conical tube 10 fixed around the downstream end of the Venturi restriction 9. A non-return valve 17 prevents exhaust gas escaping through pipe 7 when a backfire occurs. Perforated screen 14, 16 are placed across the inlet and outlet of the chamber 4 which contains two igniters 15.
Patent GB-1382775-A (GB)
Title: Polymer latices
IPC: C08F265/10
Filed: 1973-04-17
Abstract: 1382775 Copolymer latex ARCO POLYMERS Inc 17 April 1973 [21 April 1972] 18543/73 Heading C3P  A latex of a polymer formed from 1-10% unsaturated carboxylic acid and 90-99% comonomer is obtained by polymerizing all the acid monomer with 20-30% of the comonomer in the presence of 0-0À1% (based on total monomers), of an emulsifier, an initiator and sufficient water to give a latex of solids content 15-35% and polymerizing to 60-100% conversion, then adding a base to give a pH of 7-10 and the remaining comonomer and further initiator and polymerizing to obtain a latex of 30-65% solids. In the examples the acid is acrylic and/or itaconic, methacrylic or fumaric and the comonomer is butadiene,butadiene/ styrene, butadiene/methyl methacrylate, styrene, styrene/butyl acrylate or styrene/ 2-ethylhexyl acrylate. In one example dioctyl and dihexyl sodium sulphosuccinates are added as emulsifiers. Ammonium hydroxide is used as the base. The products are used to form films or coatings or to impregnate paper.
Patent GB-1527013-A (GB)
Title: Gas springs
IPC: A47C3/30
Filed: 1976-05-06
Abstract: 1527013 Adjustable chairs STABILUS GmbH 6 May 1976 [10 June 1975] 18631/76 Heading A4J [Also in Division F2] A unit for supporting a chair and adjusting the seat height and backrest inclination when desired comprises two piston-cylinder gas springs of the type in which a passage from one side of the piston to the other is normally closed but can be opened to permit the mean height of the spring to be adjusted. One spring is located within the cylinder or piston-rod of the other. Adjustment of one spring can be made independently of the other. The cylinders of the springs may be fixed together end to end by their bases Fig. 8 (not shown) or the hollow piston-rod 3 of the first spring 1 may house the cylinder 8 of the second spring 2. On actuation of a tappet 19 projecting from the piston-rod 18 of the second spring 2, a valve (41), Fig. 3 (not shown) in the piston is opened to allow adjustment of the seat back 30. To adjust the seat height a valve element 12 is moved to open a passage 9 in the piston 10 of the first spring 1. The valve element 12 may be moved by means of a tappet (4, Fig. 3), a lever moving in an oblique slot (45), Fig. 6 (not shown) or an actuating lever 6 on the second cylinder 8, rotation of which effects axial movement of an extension 34 to depress the valve element 12.
Patent GB-1132124-A (GB)
Title: Process for the isolation of tetracycline antibiotics from impure solutions thereof
Inventor: KAJFEZ FRANJO
IPC: C12P29/00
Filed: 1966-04-28
Abstract: 1,132,124. Tungstate complexes of tetracyclines. KRKA TOVARNA ZDRAVIL. 28 April, 1966, No. 18643/66. Heading C2A. Tetracyclines are isolated from fermentation broths freed from mycelium, or other tetracycline containing aqueous solutions, by precipitating the antibiotic as a tungstate complex by treatment at pH 0À5 to 7À0, with tungstic acid or a water-soluble salt thereof in a weight ratio to the antibiotic of from 0À5:1 to 4À0:1, and then dissolving the precipitate by addition of sufficient sodium hydroxide solution to give a final pH of 8À5 to 10À0 and recovering the antibiotic from this solution. The antibiotic is preferably recovered by either (i) addition of HCl to the alkaline solution to bring the pH to about 7À5, and then adding solid ammonium chloride in a ratio by weight with regard to antibiotic of 1:1 to 3:1, treating this solution with a solution of a magnesium or calcium salt, preferably the chloride, to give a ratio of 1:1 to 1: 4 to the antibiotic, and bringing the pH to 8À0 to 8À2, when the Ca or Mg salt of the tetracycline is precipitated; or (ii) by passage of the alkaline solution first through a column of cation-exchange resin, which takes up the antibiotic, eluting the column with ammonium hydroxide, and then passing the eluate through an anion-exchange resin column, when the antibiotic crystallizes from the solution obtained, after suitable concentration. The tungstic acid or tungstate may be recovered from appropriate stages in the purification by addition of cone. hydrochloric acid, which precipitates the tungstic acid; the latter may be re-employed in the inventive process. Tungstic acid salts employed are ammonium metatungstate and paratungstate, potassium orthotungstate, metatungstate and paratungstate, sodium orthotungstate and paratungstate, and cadmium borotungstate; phosphotungstic acid may also be used.
Patent GB-477845-A (GB)
Title: Improvements in or relating to the cylinders and pistons of reciprocating piston machines
IPC: F02F7/00
Filed: 1936-07-06
Abstract: 477,845. Cylinders. SULZER FRERES SOC. ANON. July 6, 1936, Nos. 18687 and 18688. Convention dates, July 12, 1935 and May 25, 1936. [Class 7 (ii)] [Also in Group XXVI] A cylinder head has a cylindrical extension 8 forming part of the cylinder bore so that when it is removed, and the piston is at the end of its stroke, the piston rings are exposed and may also be removed. The head has a cooling water space formed by walls 11, 11<1> and it is secured, adjacent the point of contact with the cylinder liner, by a ring 5, an extension 25 of which has a clearance 26 to form a water jacket. Centring rabbets 19, 40 are provided, the joint between the head and the liner being preferably of wavy or sinusoidal form. A lining sleeve 12 of white cast iron or chrome steel may be inserted. The extension 25 may have a flange bearing through a packing on the outer part of the head and be retained by studs extending from this flange to the cylinder jacket 1. It may be held during dismantling by lugs fixed to the head.
Patent GB-585618-A (GB)
Title: Improvements in or relating to electrical high-tension impulse apparatus
IPC: H05C1/04
Filed: 1944-09-29
Abstract: 585,618. Bearings. VENNER TIME SWITCHES Ltd., and HORGAN, W. F. Sept. 29, 1944, No. 18722. [Class 12 (i)] [Also in Groups XXXV and XXXVII] In the high tension impulse apparatus for electrifying wire fencing which is described in Specification 585,619, [Group XXXV], the balance-wheel 7 biassed by a spiral spring 16 is mounted on a steel spindle 10 with conical ends 10a which engage in recesses 11d in sintered bronze bushes 11c fitted in adjustable screws 11. Oil soaked felt pads 11b provide lubrication. Specification 585,617, [Group XXXV], also is referred to.
Patent GB-1312311-A (GB)
Title: Non-woven pile fabric for carpets
IPC: D06N7/00
Filed: 1970-04-20
Abstract: 1312311 Laminates CARL FREUDENBERG 20 April 1970 [7 May 1969] 18771/70 Heading B5N [Also in Division D1] A laminate comprises a woven fabric, bitumen film, P.V.C. foam or cork sheet adhered to a pile carpet material comprising a needled web of at least 50%, preferably 100% polypropylene fibres, impregnated from its backing surface only with a binder to from half to three quarters of its thickness. The web of carded staple fibres is preferably needled from one side only, and may be built up of successive layers, each being needled before the next layer is laid. The web is then impregnated from the needling side by applying an aqueous dispersion of a selfcrosslinking styrene-butadiene foam, calendered and heated to cure the resin. The foam may contain small amounts of a naphthalene sulphonic acid salt as a dispersing agent, 2-mercaptobenzimidazole as an age resister, tetramethylthiuramdisulphide as a fungicide, zinc oxide and sulphur. The product may be cut into tiles.
Patent GB-627452-A (GB)
Title: Vehicle seat
IPC: B60N2/50
Filed: 1947-07-15
Abstract: 627,452. Resilient mountings of seats. CATERPILLAR TRACTOR CO. July 15, 1947, No. 18783. Convention date, Feb. 4, 1941. [Class 52 (i)] A tractor seat comprising a frame 8, 11 having squabs 12, 13 and arm rests 4 is resiliently mounted on the tractor frame 1 by means of a compression spring 16 the ends of which are retained in retainers 17, 18 and side tilting and pitching is controlled by a pair of parallel arms 41 at each side rigidly connected at one end to transverse shafts 42 journalled in brackets in a housing 43 secured to the tractor framing 1 and at the other end 46 to a bracket 47 carried by the seat frame. A rod 28 is pivoted at 31 to the seat frame and passes through the spring 16 and through a wide aperture 29 in the tractor framing 1. The lower end of the rod 28 is provided with a bearing 32 to which is pivoted the arm 24 of a shock absorber 22 carried by a bracket 23 situated below the plate 19 of the tractor framing 1. A U-shaped skirting-49 carried by the seat frame depends over the housing 43. A rubber pad 34 is inserted between the bearing 32 and the tractor framing to provide a yieldable stop to the upward movement of the seat.
Patent GB-214142-A (GB)
Title: Improvements in or relating to calculating apparatus
IPC: G09B19/02
Filed: 1923-07-21
Abstract: 214,142. Lyadoff, P. July 21,1923. Abacuses are provided with one or more rows 8 of reference counters for use as indicators and situated between, for example, the pounds and shillings and the shillings and pence. These counters 8 are preferably of a different shape, size and colour from the ordinary counters 5, the rows of which may be sub-divided by colouring some of the beads and the sixth row comprising ten beads each representing ten shillings. A scale may be placed on the left, the side members 7 are tapered, and to guard against accidental displacement the guide wires 6 may be bent slightly upwards from their ends towards the centre. In a modification there is an indicator counter at one and the same end of each wire 6, these indicators being separated from the counters 5 by a partition extending parallel to the sides 7.
Patent GB-613659-A (GB)
Title: Arrangement in the elevator of harvesters
IPC: A01D61/00
Filed: 1946-06-24
Abstract: 613,659. Grain harvester conveyers. AKTIEBOLAGET WESTERASMASKINER. June 24, 1946, No. 18917. Convention date. June 25, 1945. [Class 6 (iii)] [Also in Group XXX] An improved elevator for grain harvesters comprising two endless conveyer bands between which the grain is retained during its elevation, said bands each running over rolls mounted in shields forming the lateral walls or frame of the elevator has at least one of the driving rolls for the bands connected pivotally but non-rotatably at both ends with its journals which are carried in bearings secured to shields so that the rolls may be tilted, whilst the journals maintain axial alignment with their bearings. In the construction shown, a gear wheel 10, driven from the power take-off shaft of a tractor, is mounted on a journal 11 mounted in a fixed bearing 12 attached by a seating to the shield 7, the inner end of the journal having a non-round portion 15 upon which a similarly shaped carrier 16 is mounted. The carrier s secured in the roll 3 and its bearing surface 17 is convex towards the centre so that the journal 11-15 and shield 7 may turn as'a whole, about the surface 17, relative to the roll 3. Similar connections are provided at the other end of the roll which drives the roll 1 through gear wheels 20, 21, crank 24-25, gears 31, 27, said roll 1 having a similar journal mounting 15-16 in the shield 5. A slot 42 in the crank 24 allows a pin 41 slight relative movement therein so that journals 22, 26 need not be exactly centred relatively to each other for the cranks to operate-the cranks actuating a root equaliser.
Patent GB-853100-A (GB)
Title: Improvements in or relating to laminated panel structures
IPC: F25D23/06
Filed: 1959-06-03
Abstract: 853,100. Refrigerators. WESTING- HOUSE ELECTRIC CORPORATION. June 3, 1959 [June 10, 1958], No. 18924/59. Class 29 Relates to panels for refrigerators formed from a core 17 of low density material such as foamed polyurethane or expanded polystyrene to which are adhesively secured inner and outer shells 18, 19 of dense material e.g. aluminium sheet, polystyrene sheet, or glass reinforced polyester sheet, the cabinet being formed from a panel notched and bent round to form the top, bottom and side walls. According to the invention, the panel is reinforced around the front edge by a strip 13, e.g. of aluminium, formed with spaced flanges 22, 23 cemented into grooves cut in the edge of body 17, flange 22 having a groove cut therein to receive the edge of outer shell 19. Strip 13 also has a groove 31 to receive one edge of polystyrene trim strip 30 the other edge of which is cemented or screwed to inner shell 18. Bolts 34 take into tapped holes in strip 13 and secure the door hinges 16 to the cabinet body.
Patent GB-716751-A (GB)
Title: Improvements in and relating to internal combustion engine fuel injection pumps
IPC: F02M59/00
Filed: 1952-07-26
Abstract: 716,751. Fuel-injection pumps. HARPER, W. A., POUNDER, C. C., and REBBECK, Sir F. E. July 26, 1952, No. 18960/52. Class 102 (1). In a fuel-injection pump, the suction stroke is effected positively from the engine by lever 54 connected to a slotted lever 54a engaging a pin 56 on an extension 50 of a piston 12 connected to the pump plunger 7. At the end of the suction stroke, the plunger is locked by a toggle mechanism 15, 18. The cylinder 13 is connected through opening 31 with a fluid system of such capacity that the fluid pressure remains substantially constant and when the toggle mechanism is released by a pin 22 operated by a moving part of the engine, the delivery stroke is effected by the fluid pressure. The time at which the pin 22 is moved is adjustable to vary the beginning of injection. The cylinder 13 has a port fitted with a throttle 28 to vary the speed of delivery and when the piston overruns the port, a fluid cushion is formed to bring the parts to rest. The pump plunger has the usual control edges and is rotated by the sleeve 10 to vary the delivery. The source of the fluid pressure may be the air supply for starting the engine and a reducing valve may be included. When the pump is arranged on an opposed piston engine, the lever 54 may be connected to the yoke attached to the upper piston of the engine. Specification 716,749 is referred to.
Patent GB-153375-A (GB)
Title: Improvements relating to marquees, tents and other light portable and collapsible structures
IPC: E04H15/58
Filed: 1919-07-31
Abstract: 153,375. Johnston, R., Anderson, T., and Tyler, F. J. July 31, 1919. Covers, wagon and like.-A dismountable skeleton for wagon covers consists of upright rods 1 and end rods 3, 4, all with eyes in vertical planes, and screwed horizontal rods 2 clamped in the eyes by nuts. Slots may replace the eyes and the covering is pierced to engage projections 6.
Patent GB-883429-A (GB)
Title: Improvements in and relating to the manufacture of electrical contact or welding electrode materials
IPC: B23K35/22
Filed: 1960-05-30
Abstract: A pressed and sintered material, for electric contacts or welding electrodes, has the following composition in atomic per cent: .Cu.48 -72 .Ag.0,5- 5 W and/or Mo the balance, and is made by pressing and sintering an intimate mixture of co-reduced compounds of the constituent metals or of co-reduced compounds of Cu and W and/or Mo together with metallic Ag in powder form.  The compounds are preferably oxides and the metallic Ag may be added before or after reduction in cracked ammonia at 800-1200 DEG C. for 20-60 minutes. The resultant powder is pulverised, screened, pressed at 5-20 t.s.i. and sintered at 1200-1400 DEG C. in dry cracked ammonia for 1/2 -1\ba1/2 hours.  If lubricants or binders are added to the powders a pre-sintering treatment is used.
Patent GB-426707-A (GB)
Title: Improvements relating to the production of electrically conducting coatings
IPC: C25D5/54
Filed: 1933-07-05
Abstract: 426,707. Bronzing &c. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. July 5, 1933, No. 19094. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 16, 1934]. [Class 100 (ii)] [See also Group XL] Electrically conducting coatings particularly for the electrostatic screening of electric discharge tubes are produced by coating with an agglutinant, such as an oil lacquer, and then applying a metal powder, e.g., by strewing powdered metal on the surface and evenly distributing it by brushing, or by rotating the tube in an air current containing the metal powder in suspension. The metal need not possess conducting properties when applied and may be rendered conductive subsequently, e.g., by treatment with sulphuric acid. Where copper is used, the conductivity may be increased by coating the particles with silver.
Patent GB-530216-A (GB)
Title: Improvements in combinations of high-pressure metal-vapour electric discharge lamps with filaments in series with them
IPC: H01J61/96
Filed: 1939-06-30
Abstract: 530,216. Discharge lamps. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges. fur Elektrische Gluhlampen). June 30, 1939, No. 19108. [Class 39 (i)] In a source of light or ultra-violet radiation comprising a high pressure metal vapour discharge lamp and an incandescent filament in series with the discharge and providing the substantial or the whole of the stabilising impedance (i) the filament 4 in full operation does not absorb more than 40 per cent of the applied R.M.S. voltage, (ii) the H.P.M.V. lamp is one wherein (a) the distance L between the electrodes 5 does not exceed 5 mm. and is not greater than their mean distance from the envelope; (b) the mean internal diameter of the approximately spherical envelope 3 does not exceed 15 mm. ; (c) W/L exceeds 200 watt/cm, W being the power in the discharge at full operation ; (d) W/S exceeds 20 watt/sq. cm. S being the internal surface area of the envelope ; (e) the vapour pressure in full operation exceeds 25 atmospheres. As shown the lamp and filament are enclosed in an outer envelope 2 which may be frosted or have a luminescent coating 7; or it may be of material permeable to U.V. A filling of argon and nitrogen may be used in the outer envelope. The discharge envelope 3 may be filled with argon at a pressure up to 400 mm. and mercury which is all evaporated in full working. Current and voltages of a specific construction are given.
Patent GB-1582224-A (GB)
Title: Apparatus for the preparation of a fluid for examination in optical analytic instruments
IPC: G01N33/48
Filed: 1978-05-12
Abstract: The measuring liquid in analytical optical devices frequently has to be treated prior to the measurement. A device suitable for this purpose is based on an optical cuvette (cell) filled with a suitable reaction solution. The sample liquid is dispensed into the reaction solution with the aid of a capillary. Normally, all the reactants for the reaction are contained in the reaction solution along with the sample liquid. In the case of the device described here, however, some of the reactants are only introduced into the reaction solution using the dispensing capillary. For this purpose, the dispensing capillary, or independently thereof an additional capillary, is filled with the reactant in the solid phase. When the sample liquid and the reactant are mixed with the reaction solution in the capillary, a chemical reaction sets in which results in a characteristic change in the optical absorption. This change serves as a basis for a photometric measurement.
Patent GB-1040088-A (GB)
Title: Improvements in and relating to gripping tongs for handling blanks and other objects, in particular in metallurgical work
IPC: B21B39/24
Filed: 1965-05-06
Abstract: 1,040,088. Grippers for orienting articles. UNION SIDERURGIQUE DU NORD DE LA FRANCE " USINOR." May 6, 1965 [May 21, 1964], No. 19201/65. Heading B8H. One jaw M<SP>1</SP> of a pair of tongs is moved into engagement with a reaction jaw M<SP>2</SP> by a pneumatic ram housed in a cylinder 1 and connected to the jaw by links 16, 17, 19 and a hollow shaft 7. When the jaw M<SP>1</SP> pushes against the jaw M<SP>2</SP> the latter yields and its movement is damped by a double-acting adjustable dashpot 29 to which it is connected by links 24, 25, 28 and a shaft 22. The limits of travel of the link 28 and hence the jaw M<SP>2</SP> are controlled by an adjustable ring 31 which has abutment faces 34, 34a. The whole device is rotatable about an axis parallel to the axis of the shaft 7 and an axis perpendicular thereto. Opening and closing of the jaws is controlled by an electrically operated valve 37, Fig. 4 (not shown).
Patent GB-185579-A (GB)
Title: Improvements in selective switches for use in automatic telephone exchanges
IPC: H01H63/24
Filed: 1921-07-18
Abstract: 185,579. Western Electric Co., Ltd., and Deakin, G. July 18, 1921. Selectors for automatic exchange systems, of the type in which a disc on the brush-shaft is driven by a second disc through an electromagnetic clutch, are provided with a mechanical brake device for stopping the brushes. The outer edge of the driven disc 11 is attracted into engagement with the parallel driving disc 5 upon energization of the electromagnet, which has adjustable pole-pieces 31. The disc 11 is constantly pressed by a roller 23 attached by a spring 21 to a member 9 pivoted in the framework 3 but adjustably secured thereto by a screw 18. Upon de-energization of the electromagnet, the disc 11 contacts with an adjustable brake-block 25 carried by the framework. According to the Provisional Specification, a stop-pin may be substituted for the brake-block.
Patent GB-515863-A (GB)
Title: An improved lid for kettles and the like
IPC: A47J36/10
Filed: 1938-06-30
Abstract: 515,863. Mulitiple fastenings for lids &c. CROUCHER, A. B., and'PARSONS, H. J. June 30, 1938, No. 19386. [Class 44] [Also in Group XVII] A lid for kettles and like vessels, or a man-hole lid, is provided with a number of locking-bars H adapted to engage under a shoulder or internal projection on the neck of the vessel &c. to retain the lid in place. The bars are pivotally attached at their inner ends to a locking plate K, their free ends passing between guides S, T stamped up from the base plate BP of the lid and emerging through openings O formed in the lower section W, the metal from these openings being turned down to form rests J. The plate K is rotated to extrude or withdraw the bolts by turning an operating handle 3, provided on the top of the lid, a triangular bar TB attached to this member passing down through tubular sleeves TS, BS, and through a triangular hole in the plate K, the lower reduced end passing' .through the base plate and being riveted over. One or more stop pins M, M<2> upstanding from the base plate and engaging a slot L limit the rotation of the locking plate.