baber/WOPTO huggingface dataset:
Patent GB-1064023-A (GB)
Title: Machine for packaging articles
IPC: B65B9/06
Filed: 1964-07-30
Abstract: 1,064,023. Seaming non-metallic sheet material. H. J. FITZPATRICK. July 30, 1964, No. 30209/64. Heading B5K. [Also in Division B8] In a machine for forming packets (see Division B8), a web (148) (Fig. 1, not shown) folded to V-form is fed between sections of containers 50, the articles to be packaged are manually placed on the web, the sections are progressively closed, the web is cut between the containers by a rotating knife (150) (Fig. 2, not shown), and the containers are moved into a heater 164 where air is blown through a conduit 168, in which it is heated. The air then passes through louvred duets 176 into region 186, and thence returned to blower 172 by a conduit 170, thus shrinking and sealing the parts of the web projecting from the containers to form a bead sealed package (Fig. 15, not shown) which falls out of its associated container as the latter passes round an end sprocket.
Patent GB-837642-A (GB)
Title: Fuel flow control valve
Inventor: STRAND TAGE MAGNUS
IPC: F16K41/12
Filed: 1957-09-27
Abstract: 837,642. Valves. WALLMARK, O. A. Sept. 27, 1957, No. 30294/57. Class 135. A diaphragm-type fuel valve for a motor vehicle comprises a key-operated actuating mechanism for opening the valve against a spring tending to close it and a releasable catch for retaining the valve in the open position. Fuel enters the valve housing 1 at an inlet 3 and passes from an outlet 4 to the carburetter. A diaphragm valve 7 co-operates with a seating 6 surrounding the outlet 4. The diaphragm 7 is secured to a piston 11 which slides axially in a sleeve 14 containing a spring 18 which urges the valve in the closing direction. The piston is provided with an outwardly directed pin 12 which engages in a cam-like fashion with a triangular cut-away portion 13 in the sleeve 14. A screw 15 in the sleeve 14 engages a recess in a coaxial cylinder 17 which cylinder is rotatable by a detachable key 16. On rotation of the key in a clockwise direction the cylinder 17 causes the sleeve 14 to rotate in a likewise fashion and the pin 12 rides up the lower edge 33 of the triangular cut-away portion 13, lifting the piston 11 and opening the valve 7. A leaf spring 22 secured at 20 to the piston 11 has an outwardly directed end portion 23, which when the valve is in the open position, engages the top edge of a cross-piece 25 and retains the valve in the open position. The sleeve 14 can then be returned to the position shown in Fig. 2 and the key withdrawn. A spring-loaded plunger 29 is provided, which when depressed, disengages the upper end 23 of the spring 22 from contact with the cross-piece 25 and allows the valve to close under the action of the spring 18.
Patent GB-1079884-A (GB)
Title: Temperature responsive switching devices
Inventor: BENSON ANTHONY JOHN
IPC: G05D23/275
Filed: 1964-07-31
Abstract: 1,079,884. Thermal switches. DRAYTON CONTROLS Ltd., and A. J. BENSON. July 6, 1965 [July 31, 1964], No. 30348/64. Heading H2B. [Also in Division F2] A temperature-responsive switching mechanism comprises a metal tube probe (7) containing a rod (8), for example of ceramic material, which acts on a lever (9) on which a switching element (12) is pivotally retained, a tension or compression spring (14) being connected at one end to the element (12) and at the other end to an adjustable stationary anchorage in the form of a screw (15), adjustment of which varies the operating temperature at which the probe moves the lever (9) to a position in which the spring (14) causes the element (12) to snap from one position to another. The element (12) may co-operate with electrical contacts (not shown) or open and close valve ports (3 and 5) (see Division F2). In a modification (Fig. 2, not shown) the rod (8) acts on a lever (9a) via a spring-loaded lever (16), one end of which cooperates with a shoulder (21) on the adjusting screw (15a) to provide a different lever ratio between expanding and contacting conditions of the probe, whereby a more precisely determinable operating temperature is stated to be obtained.
Patent GB-691555-A (GB)
Title: Improvements in or relating to burglar alarms
IPC: H01H36/00
Filed: 1950-12-12
Abstract: 691,555. Magnetic switches. WOODALL, F. G. Dec. 12, 1951 [Dec. 12, 1950], No. 30357/50. Class 38 (v) [Also in Group XXXVIII] A burglar alarm comprises a magnet 1 and a casing 2 containing an armature 3, which are fixed, one to the moving part of a door, window or the like, and the other to the frame or the like. The armature 3 is normally supported by shelf 5 and the arrangement is such that when the door is closed the armature 3 is pulled off the support 5 by the magnet so that when the door is next opened the armature 3 falls to complete an alarm circuit by making contacts 6. The armature may be raised to its supported position by thread 12. In an alternative construction, Fig. 6, the armature may be withdrawn manually through a small slot 17 by means of a further magnet and then inserted through slot 16 on to support 5. The magnet 1 may be swung back on hinge 18 to put the device out of operation.
Patent GB-1273347-A (GB)
Title: Electrical moving coil device
Inventor: DAUBENEY ROGER GILES
IPC: F16K31/06
Filed: 1968-06-26
Abstract: 1,273,347. Mounting reciprocating coils. DOWTY TECHNICAL DEVELOPMENTS Ltd. 24 June, 1969 [26 June, 1968], No. 30403/68. Heading B3A. [Also in Divisions F2 and H2] An axially reciprocating coil 20 of a motor e.g. for a pressure-regulating valve is carried by a former 18 supported by metallic spring blades 7 extending from an insulating support 15, 16 and serving to supply current to the coil. The blades 7 are integral with an outer annulus 5 and an inner disc 6. Insulating annuli 15, 16 forming the support are adhesively secured on either side of the annulus 5, and the former 18, or a separate disc 19 carrying the former, and a disc 23 are similarly secured on opposite sides of the disc 6. Holes 17, 22 in the support, former and disc 23 align with bridge portions 11, 12 in the annulus 5 and disc 6 and after assembly these portions are removed by piercing, to divide the annulus and disc into four connectors each having tags 13, 14 for connection respectively to the supply and coil 20 which in the example shown comprises two separate windings. In the case of a single winding only two bridge portions 11, 12 are provided, Fig. 6 (not shown). Instead of using adhesive, the parts may be assembled by riveting.
Patent GB-466773-A (GB)
Title: Improvements in and relating to the cutting of strip material
IPC: B26D5/22
Filed: 1935-11-04
Abstract: 466,773. Cutting plaster - board &c. WISHART, W. G., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 4, 1935, No. 30477. [Class 87 (ii)] [Also in Groups VIII and XXII] Continuously fed strip material 11, e.g. plaster-board, steel strip, &c., is cut by cooperating knives 1 on intergeared shafts 2 and 3 of which the latter 3 is driven intermittently by gearing including an interrupted gear 6. The gear 6 meshes with a gear 5 on the shaft 3 and is fixed to a gear 7 driven by gears 8, 9 from a shaft 18 which is driven by the same power as feed rolls 10. The gear 5 is held against rotationwhile the gear 6 is out of mesh therewith by a cam plate 14 carried by the gear 6 and having a portion of its circumference concentric therewith to co-operate with pins or rollers 12, 13 ; a cam 15 moves the gear 5 from rest just before the gear 6 engages with it. The gears 6, 7, and cams 14, 15 form a unit which may be replaced to vary the length of strip cut off. The knives 1 may be toothed and some of them may cut only partly through the strip. The upper shaft 2 and cutters 1 are adjustable vertically to allow for different thicknesses of material. Specification 8467/14, [Class 31 (i)], is referred to.
Patent GB-192809-A (GB)
Title: Improvements in or in connection with bottle and the like soaking apparatus
IPC: B08B9/26
Filed: 1921-11-16
Abstract: 192,809. Hill, T. Nov. 16, 1921. Bottles, washing.-In soaking machines of the kind having trays to contain the bottles suspended freely between two wheels which are rotated in a tank, as described in Specification 18554/12, means are provided for automatically tilting the trays as they leava the liquid so as to drain the bottles before they are re-immersed or removed from the machine. One of the wheels C, C' supporting the trays D by pivot pins c, c' is provided with a series of movable bolts F sliding freely in sockets E and having heads f, these bolts are prevented from leaving the sockets by nuts f<1>. Each tray has a projecting catch G adapted to engage with the head of one of the bolts F as the tray leaves the liquid, so that one edge of the tray will be retarded and the tray tilted. A slight pull upon the tray by the operator will suffice to disengage the catch, allowing the bolt to drop and the tray to hang vertically again. In modifications an adjustable bolt projects from the tray and contacts with studs upon the wheel spokes to tilt it, or rigid bolts with rounded heads may be fixed on the spokes so as to contact with rounded projections from the tray.
Patent GB-1188516-A (GB)
Title: Mixing Device
Inventor: SCOVELL GEOFFREY PHILIP ASHTON
IPC: B29B7/32
Filed: 1966-07-07
Abstract: 1,188,516. Mixing in tortuous passages. BAXENDEN CHEMICAL CO. Ltd. 12 June, 1967 [7 July, 1966], No. 30576/66. Heading B1C. A device for mixing polymerisation materials comprises a stack of similar members 3 each consisting of a disc 16 with a skirt 17 and an aperture 9, juxtaposed to form a stack having a plurality of chambers 15 with a continuous tortuous passage through the stack. Annular elastomer seals 1, 2 prevent materials being mixed from coming into contact with the joints between the members. There are inlets 12, 13 for the materials and an inlet 14 for air or other aerating agent. (For Figure see next page)
Patent GB-510337-A (GB)
Title: Process for the reduction of iron ores or copper ores in rotary furnaces
IPC: C21B13/08
Filed: 1938-01-26
Abstract: 510,337. Extracting iron and copper. SACHTLEBEN AKT.-GES. FUR BERGBAU UND CHEMISCHE INDUSTRIE. Jan. 26, 1938, No. 30731. Convention date, Oct. 6, 1937. Divided out of 496,344, [Group XII]. [Classes 72 and 82 (i)] In the reduction of iron or copper ores in the rotary furnace described in Specification 496,344, the charge of ore and carbon introduced into the furnace is heated by means of fire gases until the reduced metal is melted and the operation is conducted so that a viscous slag is produced, the furnace then being tilted so that first the molten metal and then the slag are discharged from the furnace. The viscous slag is produced by adding to the ore so much lime that the ratio SiO2 2 to CaO is less than 1 to 2. The charge is introduced into the furnace in the tilted position through an opening in its upper end and the two ends of the furnace are brought alternately in front of the heating burner by rotating the furnace about a vertical axis during the working of a charge or between two charges. The heat of the waste gases may be utilised for preheating the air of combustion for the burner and for warming the charge. Instead of ordinary or preheated air of combustion, oxygen or air enriched with oxygen may be employed or the latter gas may be mixed with the hot or cold air in, or in front of, the burner.
Patent GB-158225-A (GB)
Title: Improvements in casting machines
IPC: B22D13/06
Filed: 1920-11-01
Abstract: 158,225. Vallender, F. H. Jan. 29, 1920, [Convention date]. Casting - machines.-Castings, for example small gold dental fillings, are produced by an apparatus which exhausts the air from one end of the mould and applies pressure to the other. The mould 20 is made from a wax pattern and investment material as usual and placed on a cup 13 connected by a' passage to a cylinder 12, the piston 26 of which is connected to a sliding rod 21 actuated by a. hand-lever 32. A cup 29 filled with asbestos or the like is attached to the rod 21 so that, towards the end of the suction stroke, it presses upon the metal which has been melted in the cavity in the upper face of the mould.
Patent GB-742218-A (GB)
Title: Method of improving the lubricating action in machine parts such as bearings sliding on or guided in one another
IPC: C08K5/098
Filed: 1953-11-06
Abstract: 742,218. Bearings &c. BUSKE, A. Nov. 6, 1953 [Nov. 7, 1952], No. 30842/53. Class 12 (1). [Also in Group XXII] A method of forming permanent wedgeshaped lubricating pockets 4 in a bearing surface comprises providing hollows or apertures 2 in the bearing behind the bearing surface at the points where the lubricating pockets are to be produced, and permanently deforming the material of the bearing surface by the application of pressure. The pressure may be applied by rigid or elastic or plastic means or by means of a liquid or gas under pressure. As shown in Fig. 2, a rubber plug 5, introduced into the cylindrical bore of the bearing 1 after it has been finally turned, is compressed by a ram 6 thus permanently deforming the zones 4. A thrust bearing ring 16 provided with feet 17, Fig. 6, is permanently deformed by a ram 20, Fig. 8, acting on an intermediate rubber disc 19. Alternatively the supporting feet are incorporated in the bearing support. A bearing journal comprising a sleeve 68 Fig. 19, secured to a shaft 67 having longitudinal cavities 71 is permanently deformed by a ram 74 acting on the end of a rubber ring 73 located between the sleeve 68 and a supporting body 72.
Patent GB-996051-A (GB)
Title: Shaped articles of clothing
Inventor: SEAR DEREK WILLIAM
IPC: A41C1/04
Filed: 1960-09-08
Abstract: 996,051. Garments. DUNLOP RUBBER CO. Ltd. July 26, 1961 [Sept. 8, 1960], No. 30921/60. Heading A3V. [Also in Division B2] Shaped articles of clothing such as foundation garments, swimming and skin diving suits are made by stretching a layer of tubular nylon or cotton stockinette over a former 1 closed at one end, dipping it into a natural or synthetic rubber latex or a vinyl plastisol, withdrawing it before the latex penetrates the fabric and dipping the coated fabric into coagulant solution to set the latex. The stockinette may be impregnated with coagulant solution before being dipped in latex. The upper and lower edges of the girdle to be made on the former 1 are defined by grooves 2 and a further groove 3 receives an elastic band (not shown) which retains the stockinette in position and prevents latex reaching the inner surface of the girdle during dipping. For the same purpose, at the end remote from the groove 3 the stockinette is sewn up to form a bag, or a further groove 3 is provided in the former. There may be further alternate dippings in latex and coagulate, reinforcing panels, stiffeners or panels of different stretch characteristics being incorporated in the stockinette at least before the final dipping in the latex. The coated fabric is washed in hot water, dried and vulcanised and finished by flockspraying, punching, sewing or by chlorination. The garment is detached by running a knife along the grooves 2. Lace may be attached alng the upper and lower edges.
Patent GB-737362-A (GB)
Title: Apparatus for cleaning a bank of tubular elements, especially of electrostatic precipitators
IPC: B03C3/80
Filed: 1953-11-09
Abstract: 737,362. Rotary cylindrical valves. AIR PREHEATER CORPORATION. Nov. 9, 1953 [Nov. 14, 1952], No. 30925/53. Class 135. [Also in Group XL (a)] A cylindrical distributer valve 66, Figs. 1 and 3A, having a radially directed port 67 and the valve casing 65 having a number of individual chambers communicating with pipes 60 to 63, both rotate but at different rates. The distributer port 67 communicates with pipes 60 to 63 iu succession while the pipe system rotates to different positions relative to the electrodes of a cylindrical electrostatic precipitator (see Group XL (a)). In another embodiment the cylindrical valve has an axially extending port and the pipe chambers are annular and one above the other. The distributer port communicates in turn with the ports of the annular chambers.
Patent GB-1168014-A (GB)
Title: Improvements in Heat Storage Units
IPC: F24C15/34
Filed: 1967-06-01
Abstract: 1,168,014. Heat-storage units. COMSTOCK & WESTCOTT Inc. 1 June, 1967 [21 Nov., 1966], No. 30968/68. Divided out of 1,168,013. Heading F4U. A heat-storage unit comprises a mass of heatstoring material in a sealed container, the material being such that substantially only hydrogen is evolved throughout the temperature range of the unit and the container being pervious to hydrogen. A clearance space, filled with hydrogen, is provided above the material. The heat-storage material, its pre-treatment to reduce corrosion, the material of which the container is made and the temperature ranges employed are as described in Specification 1,168,013. The unit may be used for heating water or air.
Patent GB-728208-A (GB)
Title: Improvements in clinometers
IPC: G01C9/22
Filed: 1953-11-10
Abstract: 728,208. Levels. BRADY, W. B., and GILLIE, J. C. Nov. 10, 1953, No. 31029/53. Class 97 (2). In a liquid level of the kind described in Specification 471,983 comprising a tube system containing two liquids of different densities, the indicating meniscus moving in a small bore tube C inclined to the vertical, the diameter of part of the tube system is reduced. Preferably, the bore of the tube is gradually tapered at the region where the change occurs. This region is located between the lower end of tube C and a liquid reservoir A<SP>1</SP>, preferably above a second reservoir A.
Patent GB-1493905-A (GB)
Title: Polishing semiconductor surfaces
IPC: H01L21/304
Filed: 1976-07-26
Abstract: 1493905 Polishing semi-conductor surfaces WACKER-CHEMITRONIC GES FUR ELEKTRONIK-GRUNDSTOFFE mbH 26 July 1976 [1 Sept 1975] 31056/76 Heading B3D [Also in Division C4] A process for polishing a surface of a semiconductor body comprises polishing the surface by means of a polishing agent comprising a mixture of (i) an aqueous suspension containing one or more of the following: quartz, a silicon, a silicate and a fluorosilicate, and having a pH within the range from 6 to 8, and (ii) an aqueous solution of hydrogen peroxide having a pH within the range from 6 to 8. The aqueous suspension (i) is prepared by mixing 1 part by weight of the quartz, silica, silicate or fluorosilicate with from 1 to 10, preferably 3 to 5, parts of water and adjusting the pH value to 6 to 8, and preferably 6À5 to 7À5, using an acid such as phosphoric, sulphuric, acetic, oxalic or hydrochloric acid. The silicates may be of metals of Groups IIa (Be, Mg, Ca, Sr, Ba), IIb (Zn, Cd), IIIa (Sc, Y, La) and IIIb (B, Al, Ga, In) or heavy metal silicates of zirconium, iron, lead, nickel, cobalt, magnesium, calcium, strontium, barium, zinc, and aluminium, and the fluorosilicates be of metals of Groups Ia (Li, Na, K, Rb, Cs, Fr), Ib (Cu, Ag, Au), IIa, IIb, IIIa and IIIb, e.g. sodium, potassium, magnesium, calcium, barium, aluminium, and zinc. Silica gels and solutions, and quartz powder may be used in the polishing agent. The aqueous solution (ii) may contain from 5 to 30% by weight hydrogen peroxide, the pH value being adjusted to 6 to 8, preferably 6À5 to 7À5 by using an alkali such as aqueous sodium hydroxide, aqueous potassium hydroxide or aqueous ammonia. The suspension (i) and solution (ii) may be raised and stored or, preferably, supplied by pumps to the polishing machine and mixed immediately prior to use, the mixture containing 2 to 15%, preferably 4 to 8%, by weight hydrogen peroxide. The polishing machine may have either polishing discs or cloths. The semiconductors to be polished may be of gallium arsenide, silicon and germanium which may or may not contain a dopant such as tellurium, chromium or selenium. In an example of the polishing agent, 5 litres of waterglass having 30% by weight SiO 2  and 2À5 kg of calcium chloride hexahydrate were suspended in 40 litres of water and the pH adjusted to 7 using concentrated hydrochloric acid. Thirty litres of a 30% by weight aqueous hydrogen peroxide solution were then adjusted to a pH of 7 using an aqueous ammonia solution. The two solutions were conveyed separately to the polishing machine and mixed immediately before flowing on to the semi-conductor discs to be polished.
Patent GB-925605-A (GB)
Title: A process for the preparation of polyurethane plastics
IPC: C08G18/67
Filed: 1961-08-29
Abstract: A process for the preparation of a polyurethane casting comprises the steps of (1) reacting sufficient of an organic polyisocyanate with a mixture of (a) an organic compound containing a plurality of alcoholic hydroxyl groups and having a molecular weight above 800 and (b) a polyhydric alcohol having a molecular weight below 500, that an excess of from 300% to 900% of organic polyisocyanate is present (based on the hydroxyl groups of the organic compound containing a plurality of alcoholic hydroxyl groups), the amount of the polyhydric alcohol (b) being such that an excess of at least 150% of the organic polyisocyanate remains after reaction with all of the free hydroxyl groups of the p  organic compound (a) and the polyhydric alcohol (b), to prepare a prepolymer and (2) reacting the prepolymer with additional polyhydric alcohol to cause cross-linking and produce a polyurethane casting by placing the final reaction mixture into a mould and allowing it to cure.  Polyhydric alcohols of M.W. below 500 specified are glycol, propylene-1,2- and 1,3-glycols, butane-1,4- or 2,3-diols, butene-1,4-diol, butyne-1,4-diol, pentane-1,5-diol, hexane-1,6-diol, hexene-3-diol-2,5, hexyne-3-diol-2,5, hydroquinone-bis-b -hydroxyethyl ether, pentaerythritol, thiodiglycol, and polyhydric alcohols containing urea, urethane, carbonamide and ester groups.  Different polyhydric alcohols may be used in the first and second stages. As hydroxyl-containing compounds of M.W. above 800 there can be used hydroxyl-containing polyesters, polyesteramides, polyhydric polyalkylene ethers, polyhydric polythioethers and polyacetals. In one embodiment the process comprises (1) reacting from 3,0 to 9,0 equivalents of an organic polyisocyanate with a mixture of (a) 1 equivalent of a hydroxyl-containing polyester having a M.W. above 800 and (b) from 0,5 to 2,0 equivalents of a trihydric alcohol having a M.W. below 500 in such proportions that an excess of 300 to 900% of organic polyisocyanate is present (calculated on the hydroxyl groups of the polyester) and at least a 150% excess of organic polyisocyanate is present (based on the hydroxyl groups of the polyester and trihydric alcohol) to prepare a prepolymer and (2) reacting the prepolymer with 2,5 to 6 equivalents of a dihydric alcohol.  In examples the reactants employed are (1) trimethylolpropane, glycol/adipic acid polyester, naphthylene-1,5-diisocyanate and butane-2,3-diol; (2) as in (1), but butane-2,3-diol being used in the first stage and butane-2,3-diol and trimethylolpropane in the second; (4) polythiodiglycol, trimethylolpropane, naphthylene diisocyanate and butane-2,3-diol; (5) trimethylolpropane, butane-2,3-diol, adipic acid/glycol/butane-1,4-diol polyester, naphthalene-1,5-diisocyanate and butane-2,3-diol.  The castings are used as solid tyres, gear-wheels and clutch-facings.