baber/WOPTO huggingface dataset:
Patent GB-1385688-A (GB)
Title: Manufacture of glass ceramic bodies and the like
IPC: C03C10/00
Filed: 1971-07-19
Abstract: 1385688 A porous glass ceramic article DEFENCE SECRETARY OF STATE FOR 18 July 1972 [19 July 1971] 33774/71 Heading ClM A porous free standing glass or glass ceramic article is produced by mixing finely divided particles of a devitrifiable glass with a solution of an organic polymer such as polybutylmethacrylate or polymethylmethacrylate, curing the mixture to give a mouldable consistency, forming the mixture to the desired shape, applying heat to substantially eliminate the polymer. The article may be then heat treated to devitrify the glass. The polymer solution preferably includes a plasticizer such as dibutyl phthalate and solvents such as xylol and acetone. The polymer is eliminated from the glass-polymer mixture by heating at 50‹ per hour to 370‹ C. and maintained thereat for 15 hours. Devitrification is achieved by heating at a rate of 100‹ C. per hour and holding for ¢ hour, heating at 300‹ C. per hour to 1260‹ C. and holding for 3 hours before being cooled to 850‹ C. at a rate of 150‹ C. per hour. A preferred glass contains MgO, Al 2 O 3 , SiO 2  and TiO 2 . The article may take the form of a corrugated sheet or a sandwich construction of alternate layers of glass or glass-ceramic.
Patent GB-1491271-A (GB)
Title: Pushing device for a pusher vessel
IPC: B63B21/56
Filed: 1975-08-15
Abstract: 1491271 Pushing vessels WESER AG 15 Aug 1975 [17 Aug 1974] 34102/75 Heading B7S A device mounted on the bow of a pusher vessel comprises a pair of substantially partspherical rollers 14, 15 mounted for rotation on a shaft 16 located at one end of an inclined bifurcated support 12. A buffer 11 is located between the axle 16 and the bow. The rollers 14, 15 may be hollow and open at their larger diameter ends and may have replaceable wear reducing coverings. The device permits relative vertical movements between pushing and pushed vessels.
Patent GB-339751-A (GB)
Title: Improvements in or relating to emulsifiers, mixers and the like
IPC: B01F13/00
Filed: 1929-11-08
Abstract: 339,751. Davy, W. J. Nov. 8, 1929. Single-acting b u c k e t pumps; buckets.-A mixing or emulsifying apparatus comprises a cylinder in which works a plunger provided with restricted passages having angular turns and terminating at opposide sides of the plunger. The cylinder may be closed or, as shown, the cylinder a is enclosed in a second cylinder a<1>, and the material is circulated through the inner cylinder which is provided with valved ports l in the base, and radial openings a<2> at the top. The plunger comprises two parts f, f<1> secured to the rod d, the lower part f<1> having radial grooves g leading at their inner ends to openings h, and at their outer ends to a concentric groove i; the groove leads in turn to openings in the upper part f. The material is discharged through a pipe fitted with a tap b<3>.
Patent GB-1062173-A (GB)
Title: Alkaline compositions for cleaning metal surfaces and their use
IPC: A23C7/02
Filed: 1963-08-29
Abstract: Solid particulate mixtures, for use in aqueous solution as a metal cleanser especially for stainless steel and copper, comprise by weight 40% to 94% of an alkali metal hydroxide; 0.1% to 40% of 2- mercapto-benzothiazole (or an alkali metal salt thereof) and either 1% to 10% of gluconic or heptagluconic acid (or an alkali metal salt thereof) or 5% to 20% of an alkali metal phosphate detergent. Preferred mixtures contain both the above optional constituents and may also contain up to 5% by weight of an anionic or non-ionic surface active agent e.g. polyethylene oxide condensates; nonyl phenol-ethylene oxide condensates and alkyl-napthylene sulphonates and up to 20% by weight of an alkali metal silicate e.g. sodium metasilicate.  Specified phosphates used include the tetra alkali-metal pyrophosphates and trialkali-metal polyphosphates.  In a preferred embodient, liquid mixtures of the above compositions contain 49.45% to 69.45% by weight of water.
Patent GB-621636-A (GB)
Title: Improvements in and relating to electrical timing circuits employing thermionic valves
IPC: H03K17/288
Filed: 1946-11-19
Abstract: 621,636. Valve relay circuits. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd., and RIDDLE, H. J. N. Nov. 19, 1946, No. 34234. [ Class 40 (vi)] In timing apparatus in which one winding of a relay is connected in the anode circuit of a valve, at least when the relay is operated, preparatory to the timing period, a winding of the relay is energized to operate the relay and a capacitor is charged. The timing period is initiated by interruption of the charging circuit so that the capacitor applies a negative bias to the control grid of the valve, thereby reducing the magnetomotive force in the relay below that required to operate it, the duration of the period being determined by the time taken for the capacitor to discharge sufficiently so that the anode current flow through the relay winding is sufficient to cause the relay to release. In the timing circuit shown in Fig. 1, relay 7 has its two windings 6, 8 wound in opposition so that initially, when switch 10 is closed, valve 4 draws grid current and capacitor 1 is charged. Both windings of the relay are energized and the relay is operated, the anode current flow through winding 6 being insufficient to cause the relay to release. At the commencement of the timing period switch 10 is opened and the negative charge on capacitor 1 cuts-off the anode current of valve 4, the relay remaining operated until the charge has leaked away sufficiently through resistor 2, assisted by the positive potential to which the resistor is connected, for the anode current of valve 4 to reach a value such that the relay is released, thus marking the end of the timing period. In a modification shown in Fig. 2, the holding resistance 9 is dispensed with, the core of the relay being made sufficiently retentive so that it is held operated during the timing period until the current through the valve has increased sufficiently. The circuit operates in a similar manner to that described in connection with Fig. 1, the relay when operated being connected via contacts 13 in the anode circuit of valve 4 and the resistor 14 being connected between capacitor 1 and negative H.T. to maintain the circuit conditions unaltered. The circuit may be modified for speed timing by ensuring that the charge attained by the capacitor during the charging period is dependent upon the duration of the closure of the charging switch. The resistor through which the capacitor discharges may be selectively variable and is considerably greater in value than the control grid/cathode impedance of the valve. Specification 591,295 is referred to.
Patent GB-190907-A (GB)
Title: Improvements in washing machines
IPC: D06F37/10
Filed: 1921-12-20
Abstract: 190,907. Baete, H., Pritlove, E., and Vandorpe, L. Dec. 20, 1921. Washing - machines with closed rotary receptacles.-The water-tight clothes container g having integral ribs h, h<1> is mounted in bearings e removably carried by a collapsable framework a comprising a pair of standards united by a cross-stay a' and provided with detachable legs b. The door j is hinged by means of its bent-up edge j<1> engaging a turnedover lug k and is fastened by wing- nuts m and screwed bolts l in conjunction with lugs n on the container.
Patent GB-1121356-A (GB)
Title: Improvements in or relating to the manufacture of carbocyclic peroxycarboxylic acids
IPC: C07C409/30
Filed: 1966-07-29
Abstract: A carbocyclic peroxycarboxylic acid in which for the or each peroxycarboxy group on the carbocyclic ring there is present on an adjacent carbon atom in the carbocyclic ring a carboxy group, said carboxy group being associated with not more than one peroxycarboxy group is prepared by reacting the anhydride of the polycarboxylic acid corresponding to the desired peroxycarboxylic acid with a peroxidizing compound in an organic medium in the presence of a basic compound catalyst, the organic medium being a non-oxidizable medium in which the peroxycarboxylic acid is insoluble, acidifying the reaction mixture on completion of the peroxidation reaction and separating the peroxycarboxylic acid formed from the organic medium. Several halogenated aliphatic hydrocarbons are specified for use as organic media.  Water and residual peroxidizing compound may be removed azeotropically on completion of the reaction.  Examples describe the preparation of monoperphthalic acid.
Patent GB-1396193-A (GB)
Title: Dynamoelectric machine winding bar
IPC: H02K3/04
Filed: 1972-07-21
Abstract: 1396193 Coils for dynamo-electric machines SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM) 21 July 1972 [22 July 1971] 34371/72 Heading H2A A dynamo-electric machine winding bar comprises a plurality of stacks of radially transposed conductors, each conductor comprising a layer of tangentially transposed strands. The bars are stated to be of use in machines wherein the winding is mounted in the air gap rather than in slots. The tangential transposition of the strands forming each conductor may simply be achieved by twisting the conductor over on itself. Alternatively, each conductor may comprise two radially superimposed layers of strands, the tangential strand transposition then being achieved by transposing as in the Roebel method. The strands are individually insulated and the assembly of radially transposed conductors forming the bar is bound together or held together by cured thermosetting material and then surrounded by further insulation.
Patent GB-935455-A (GB)
Title: Improvements in coal mining processes
IPC: E21D9/00
Filed: 1960-10-07
Abstract: 935,455. Cementing fissures &c. at working face. MANNESMANN A.G. Oct. 7, 1960 [Oct. 16, 1959], No. 34479/60. Classes 9 (1) and 68 (1). A process for reducing the amount of finegrain material obtained whilst mining coal, ores or minerals consists in forcing a cementing liquid, such as a solution or dispersion of water glass, polyvinyl acetate or other synthetic plastic material under a pressure of at least 100 atmospheres into the fissures &c. of the working face.
Patent GB-396270-A (GB)
Title: Improvements in or relating to trunk locks and the like
IPC: E05B65/50
Filed: 1932-12-05
Abstract: 396,270. Hasp fastenings. KRAUSE, 0., 17, Luisenstrasse, Iserlohn, Westphalia, Germany. Dec. 5, 1932, No. 34483. [Class 44.] A hasp-fastening is secured by a locking plate which is moved transversely o f the bolt by means of the operating knob or nozzle. The knob 14, Fig. 2, is secured to the locking plate 9 by tongues 12, 13 which pass through slots in the casing 1, the bolt 4 and the plate 9. As shown, the bolt is free to be withdrawn by the knob, but when the plate 9 is moved downwardly a tongue 16 extending into an opening 15 in the plate engages behind a projection 18 on the casing to prevent withdrawal of the bolt. The plate slides between lugs 4a, 20, 21 on the bolt and is frictionally held in its end positions by the bolt spring 26. The bolt is guided by lugs 8, 18 and by its head engaging with an opening in a flange 7 of the hasp slot 3. The fastening may have incorporated with it locking means consisting of a tumbler spring 42, 43 operated by a key 50 inserted over a pin 39 on the locking plate 38. When the tumbler spring is shot, a projection 42a on it engages with a lug 38a on the locking plate to press down and retain the latter. The plate 38 is guided by lugs 37a, 37b, 37c on the casing and may be releasably held in its two positions by a spring 40, 41 having a projection 48 which engages with a lug 44 on the plate.
Patent GB-1469561-A (GB)
Title: Method for welding tubular members end to end
IPC: B23K9/028
Filed: 1974-08-06
Abstract: 1469561 Welding by pressure and fusion  C F KAUNITZ and H B NEANDER 6 Aug 1974 [6 Aug 1973] 34494/74 Heading B3R In joining a pair of tubes 10, 10<SP>1</SP> end to end, axially extending root portions 30, 30<SP>1</SP> are formed on the tubes, the tubes are coaxially aligned with the root portions close but spaced apart, the tube ends are heated, the tubes are then forced together to weld the root portions and the groove 50 then present between the tube ends and root portions is filled with weld metal 64. In an embodiment the tubes are machined at their ends to produce the root portions 30, 30<SP>1</SP>, with parallel upper and lower surfaces 32, 32<SP>1</SP>, 34, 34<SP>1</SP>, and with curved facing surfaces 34, 36<SP>1</SP> or with a bevel at the bottom, and tapered surfaces 40, 40<SP>1</SP> on the ends above the root portions. The tube ends are clamped with the root portions spaced apart and four coils 54 of an induction heater are arranged about the tube ends to heat the ends while an inert gas is supplied to the interior and exterior of the tubes to fill the cover 56 of the heater. When the root portions are suitably heated the portions are forced into abutment by clamping and force applying means applied within the tubes to form a weld 60. Burrs may be removed from the joint 60 and layers of weld metal 64 are deposited in the groove 50 by M1G welding. Instead of heating the tube ends by induction, resistance wire or acetylene etc. blow pipes may be used and the means to force the tube ends together may be applied to the outsides of the tubes. The root portions may have dovetailed or tapered configurations.
Patent GB-917512-A (GB)
Title: Improvements in or relating to fluid pressure controlled dispensing apparatus
IPC: F16N27/00
Filed: 1960-10-10
Abstract: 917,512. Dispensing liquids. CASTROL EQUIPMENT Ltd., and EARLY, K. C. June 28, 1961 [Oct. 10, 1960], No. 34696/60. Class 102(2). In a fluid pressure controlled dispensing apparatus a measuring chamber 8 has a displaeement member 14 which moves under the influence of the pressure fluid to dispense lubricant through a shuttle valve 9. The drawing shows the apparatus in the inactive condition with the measuring chamber 8 fully charged. A spring loaded plunger 38 is moved to the right and compressed air from a line 28 passes to a change-over valve 27 through a pipe 35. The pipe 45 receives compressed air from a pipe 44 and branch 31, the shuttle valve 9 rises, a spring loaded plunger 68 rises to bring a pipe 12 in communication with the atmosphere through a port 65 and the valve spindle 21 actuates a plunger 58 to bring compressed air to the chamber 8 through the branch 31 and a pipe 56. The member 14 rises, discharges lubricant through the delivery port 18 and at the end of its stroke actuates a plunger 52 to supply compressed air to the other side of the change-over valve 27. Simultaneously a spring loaded, plunger 64 rises and compressed air is led to the pipe 62 to start an air motor 11 driving a lubricant pump 10. At the same time the shuttle valve 9 is returned by compressed air from pipes 31, 44, 46, the pipe 56 is opened to atmosphere through a port 54 and the pipes 62 and 12 supply compressed air to an air operated pump 10. The pump charges the chamber 8, lowering the member 14 to open pipes 47 and 62 to atmosphere through ports 50, 60 respectively. Specification 637,883 is referred to.
Patent GB-996720-A (GB)
Title: Process for the production of solid electrolytic capacitors
IPC: H01G9/00
Filed: 1963-09-03
Abstract: 996,720. Capacitors. SIEMENS & HALSKE A.G. Sept. 3, 1963 [Sept. 6, 1962], No. 34709/63. Heading H1M. A solid electrolytic capacitor comprises an anode of bulk or sintered valve metal having a dielectric oxide layer, which is coated with lead dioxide formed by impregnating with a solution of lead tetra acetate and decomposing by exposure to the vapour of a substance containing the hydroxyl group. A tantalum anode is oxidized anodically in aqueous phosphoric acid and impregnated with a solution of lead tetracetate in chloroform, after which the solvent is evaporated in a stream of air and the salt is decomposed to lead dioxide by a mixture of air and water vapour. The outer layer is brushed and the electrodes are formed electrolytically in aqueous acetic acid, after which the deposition of lead dioxide and subsequent formation are repeated a number of times, and a layer of graphite, followed by a cathode of tinned copper are applied. The anode may be of aluminium, and the concentration of water vapour in the oxidation gas mixture may be increased as oxidaton proceeds.
Patent GB-186546-A (GB)
Title: An improvement in fountain pens
IPC: B43K5/00
Filed: 1921-12-24
Abstract: 186,546. Hitchon, E. Dec. 24, 1921. No Patent granted (Sealing fee not paid). Reservoir pens.- Reservoir pens are provided with fixed or movable grooves or notches, Fig. 4, or projections, Fig. 5, to act as points of balance to indicate the state of the ink contents. Where projections G, H are formed integral with or cemented to the pen barrel, they are placed at different parts of the circumference in order to act clear of each other. The projections may be formed as part of an ornamental mounting on the barrel or on the self-filling mechanism, or a circumferential projection may be provided on a circular or polygonal sleeve movable on the barrel, stops being provided to limit the movement in each direction.
Patent GB-195446-A (GB)
Title: Improvements in or relating to stop valves
IPC: F16K31/56
Filed: 1921-12-29
Abstract: 195,446. Howden & Co., Ltd., J., and Hume, C. W. Dec. 29, 1921. Actuating-mechanism.-A stop valve is provided with a release catch which may be operated to allow the valve to close rapidly under the action of a spring. The spindle 3 is surrounded by a closing spring 2, and its screw-threaded portion works in a bridge piece 7 pivoted at 4. A strut or toggle 10 is pivoted at 9 and is provided with a socket 11 engaging a pin 12 on the bridge piece. The strut 10 is retained in position by a spring 13 and may be withdrawn by a cord 14 to allow the spring to close the valve.
Patent GB-320272-A (GB)
Title: Improvements in appliances for peeling oranges and like fruits
IPC: A47J17/04
Filed: 1928-11-27
Abstract: 320,272. Harley, C. F. Nov. 27; 1928. Peeling oranges.- An appliance for peeloranges and the like comprises a blade 2 having a cutter 1 of channel section projecting therefrom, the cutter starting at one edge of the blade and tapering longitudinally until it merges into and becomes flat with the face of the blade. The cutter may be of U- or V-section and is preferably formed by pressing it out of the blade. The cutter edge may be set back from the edge of the blade, and the centre of the cutter edge may be curved outwardly to facilitate penetration into the peel. The end of the blade is formed with a blunt, slightly downturned point 5 which removes the peel after the cutter has removed a strip. Specification 303,726 is referred to.
Patent GB-1170696-A (GB)
Title: Improvements relating to Amplifier Circuits
Inventor: WOOD MICHAEL DAVID
IPC: H03F3/26
Filed: 1967-07-29
Abstract: 1,170,696. Transistor amplifying circuits. FERRANTI Ltd. 12 July, 1968 [29 July, 1967], No. 34956/67. Heading H3T. A balanced differential amplifier is provided with equal and opposite negative feed back between the balanced outputs and one of its inputs, so that earthing of either output will have no effect on the gain. In Fig. 2, the transistors T1, T2 are a long-tailed pair with a negative feedback path from the collector of T2 via a constant current transistor T3 to the base of T1. Resistor R5 in the second feedback path equals Rf of the first feedback path, thus ensuring equal feedback from both paths. High-frequency stability is improved by the inter-collector capacitor.
Patent GB-413309-A (GB)
Title: Automatic control gear for reversing engines
IPC: B66B1/14
Filed: 1932-12-10
Abstract: 413,309. Power reversing-gear. SISSON, H. T., Chosen House, Hucclecote, Gloucestershire. Dec. 10, 1932, No. 35050. [Class 122 (iv).] A reversing-gear for reciprocating engines, driving hoists, &c., comprises steam and hydraulic cylinders E, G, the distributing valve H of the former being actuated from the engine shaft and the cylinder of the latter being counter-bored at both ends whereby the motion of the gear is retarded at mid position, i.e., when the engine is stopped to give a distinct pause before restarting in the reverse direction. The valve spindle is provided with tappets N co-operating with a nut J on a screwed spindle driven from the engine shaft. An adjustable needle valve P is also provided for controlling the flow of liquid from end to end of the cylinder H. The counterboring may be replaced by valves P<1>, Fig. 2.
Patent GB-1017172-A (GB)
Title: Method and apparatus for tying the open end of a package
IPC: B65B51/08
Filed: 1962-09-14
Abstract: 1,017,172. Tying bag-necks. E. E. BUR. FORD. Sept. 4, 1962 [Nov. 15, 1961], No. 35087/62. Heading B8C. Gathering the necks of the bags.-The neck of the bag 40 (Fig. 21a, not shown) is pushed into a slot 44 by a brush 46 rotating at a higher speed than the conveyer carrying the bags. A carriage 116 is then raised behind the bag and moves forwardly along the slot 44 to gather the bag neck against a dog 122 (Fig. 21c, not shown). Alternatively the dog 122 may be replaced by a moving clamp 304 (Fig. 27c, not shown) co-operating with a fixed jaw 302. The neck in the carriage 116 for receiving the bagneck is flared so that it is wider nearer the contents of the bag. A lever may collapse the neck of the bag. Passing the wire around the neck. Cutting the wire.-The gathered neck is held against a wire 62 (Fig. 17a, not shown) gripped at 300 between a fixed abutment 196 (Figs. 22e and 23a, not shown) and the shaped end 194 of a swinging lever 166. The wire 62 is then carried around the neck of the bag by a pulley 254 mounted on an arm 210 which swings to the position of Fig. 17d (not shown) to deliver the wire into the gap between the member 194 and a second abutment 196 from which it is spaced. The member 194 is then moved to clamp the wire against the second abutment 196, simultaneously cutting off the portion of wire entrained round the neck of the bag by co-operation with a cutting surface 214. The wire 62 is fed from a reel 58 (Fig. 1, not shown) and is tensioned by a brake 64 and by an arm 65 pivoted at 67 and formed with an eye 68 through which the wire passes.  Twisting the wire.-The free ends of the wire tie are then twisted by two or more rotations of a member 244 (Fig. 23a, not shown) formed with a protuberance 246 which assists in retaining the wire. Stop motions. Conveying.-The bags, which may contain bread, are conveyed by pushers 26 (Figs. 1 and 3) on spaced endless chains 24. The chains are stopped when a bag operates a limit switch 37 (Fig. 3, not shown) to start the tying operation. The conveyer chains are restarted automatically at the end of the tying operation. Adjustments for size of package.-A fence 38 (Fig. 3, not shown) guiding the filled bags on the conveyer is adjustably mounted in brackets 30. The width of the slot 44 (Fig. 21a, not shown) can be adjusted.