baber/WOPTO huggingface dataset:
Patent GB-1095196-A (GB)
Title: N,n'-dialkyl-perylene-tetracarboxylic acid diimides
IPC: C09B5/62
Filed: 1965-04-05
Abstract: N,N1 - Dialkyl - 3,4,9,10 - perylene - tetracarboxylic acid diimides wherein the alkyl groups have 1-6 carbon atoms are produced by (a) digesting perylene-tetracarboxylic acid diimide with at least 6 mols. alkali metal hydroxide per mol. diimide; (b) adjusting the pH to between 10 and 13.5 with a mineral acid, using at least three more mols. hydroxide than acid; and (c) heating the resultant diimide under pressure with at least the theoretical amount of alkylating agent.  The hydroxide is preferably KOH or NaOH.  The alkylating agent may be an alkyl halide, an alkyl ester of an aromatic sulphonic acid or a dialkyl ester of sulphuric acid.  The alkylation is preferably carried out in the presence of a di- or tri-alkali metal orthophosphate, a tetra-alkali metal pyrophosphate or a penta-alkali metal tripolyphosphate, the amount of phosphate being 0.5-2.0 mols. per mol. of diimide.  The phosphate salt may be formed in situ by the addition of the appropriate phosphoric acid.  Reference has been directed by the Comptroller to Specification 967,178.
Patent GB-1572626-A (GB)
Title: Terpolymers and higher polymers of n-alkyl-or n-alkoxyalkyl-acrylamides or-methacryl-amides process for their preparation and their use in cosmetics
IPC: A61K8/00
Filed: 1977-04-05
Abstract: The copolymers are obtained by copolymerisation of at least one N-alkyl-substituted acrylamide or methacrylamide, for example N-t-butylacrylamide, at least one unsubstituted unsaturated amide, for example acrylamide, and at least one other polymerisable monomer, for example methyl methacrylate. These copolymers find applications in cosmetics, especially for the manufacture of hair setting lacquers and lotions.
Patent GB-1423052-A (GB)
Title: Combustion chamber assembly for a gas turbine engine
IPC: F23R3/00
Filed: 1973-03-27
Abstract: 1423052 Gas turbine combustion chamber BRITISH LEYLAND UK Ltd 25 March 1974 [27 March 1973] 14533/73 Heading F1L A ceramic flame tube 4 is mounted within a metal cylindrical impingement wall 2 of a gas turbine combustion chamber 1 by heat springs 6 welded to the wall 2 and abutting the tube 4 at its ends, relative thermal expansion between the flame tube and wall 2 being accommodated by sliding between one end of the springs and the downstream end of the tube, whilst the upstream end is fixed by engagement of the spring ends in a circumferential groove 5 in the tube 4. As shown, the end 7 of the sixteen springs 6 pass through slots 3 in the wall 2 and carry friction pads 9 pivotably at their free end.
Patent GB-457099-A (GB)
Title: Improvements in cooking ranges
Filed: 1935-05-18
Abstract: 457,099. Kitchen-ranges. SMITH & SONS, Ltd., S., Beehive Foundry, Smethwick, Staffordshire, and HERON, H. C., Beachcliff Hall Hotel, Cliff Cottage Road, Bournemouth. May 18, 1935, No. 14588. [Class 126] In a cooking-range, the oven 21 is disposed directly above the firegrate 12, and flues 29, 30, 31 extend under the oven and flues 34 extend up the front, back, and sides of the oven. The oven is wider than the grate, and hot cupboards 43 are disposed at each side of the grate below the flues 29, 30, 31. Above the oven is a hotplate 36 beneath which are flues 35 extending from the flues 34 to the outlet 37. The flues 29, 30, 31 are defined by flanged metal castings forming distance pieces 32 which rest on the plate 14 and carry the oven. The flues 35 are defined by similar distance pieces 42. The distance pieces, the spaces between the vertical flues 34, the side and rear walls of the range, and the doors of the oven and hot-cupboards, are provided with heat-insulating lagging. The grate comprises a basket 12 with firebars 15 at its base. A cast-iron or other heatresisting shield 27 is provided above the firegrate, and the bottom of the oven contains firebricks 24 disposed between metal bars. A second oven may be provided above the oven 21, and may extend over the centre only of the plate 36. In this form, side, back and front flues may be provided for both ovens, and a horizontal flue between the two ovens. Flues may be controlled by dampers so that hot gases pass up the sides, front and back of both ovens, or up the sides and front of the lower oven through the horizontal flue, and up the back of the upper oven.
Patent GB-143406-A (GB)
Title: Improvements in means for fastening railway carriage doors automatically
IPC: E05B65/36
Filed: 1919-06-10
Abstract: 143,406. Coleman, S. June 10, 1919. Electrically-operated fastenings.-A device for locking and unlocking a number of railway-carriage doors simultaneously comprises an electric motor, a toothed wheel F keyed to the motor, and consisting of a pair of offset toothed segments, a pair of racks G adapted to be operated alternately by the toothed wheel F, a link B connected on opposite sides of its pivot by rods C, D to the racks G, and rods H which are operated by the link B and carry a number of pins E engaging the door bolts J. By means of a suitable switch under the control of the guard, the wheel F is moved through half a revolution, so that one of its toothed segments operates one of the racks to shoot the door bolts. During the next half-revolution of the wheel F, its other toothed segment engages with the other rack and releases the bolts. The end of each door bolt J is rounded so as to cause any door which may be open at not more than 10 degrees to close when the device is operated for locking.
Patent GB-143925-A (GB)
Title: Improved arrangement of compressor for aircraft and motor vehicle engines
IPC: B64D13/04
Filed: 1920-05-28
Abstract: 143,925. Daimler-Motoren-Ges. Nov. 26,1917, [Convention date]. Propelling.-An aircompressor for charging the cylinders of an internal, combustion engine for aircraft is located outside the fuselage. The Figure shows a compressor c driven from an engine b bv a chain d. A casing may enclose the compressor, the cooling of which may be assisted by a fan or by the propeller.
Patent GB-110388-A (GB)
Title: Improvements in Apparatus for Controlling the Temperature of Fluids.
Inventor: BUTLER JAMES BAYLEY
IPC: G05D23/13
Filed: 1916-10-16
Abstract: 110,388. Butler, J. B. Oct. 16, 1916. Thermostats.-Relates to apparatus for controlling the temperature of fluids by automatically proportioning, by means of a thermostat, two supplies at temperatures above and below the required temperature. The apparatus comprises a mixing chamber i, containing the thermostat k and having a tubular extension a in which is arranged a spring-controlled piston-valve d having lateral openings e, f communicating with and adapted to regulate the supply of fluid from the two supply pipes b, c. The thermostat shown is of the capsule type and rests on projections or baffles n in the mixing-chamber, which are so disposed as to cause a. thorough mixing of the supplies before they pass to the outlet l. The piston-valve d bears against the capsule k, and the initial tension of the control-spring is adjustable by a screw m so that the final temperature of the mixture can be varied.
Patent GB-475140-A (GB)
Title: Hold-down guard for planers and jointers
IPC: B27G21/00
Filed: 1936-05-25
Abstract: 475,140. Planing-machines. WALKERTURNER CO., Inc. May 25, 1936, No. 14770. [Class 145 (i)] [Also in Group XXIV] In a wood-planing machine having a rotating, cutter 19 a combined guard and work-clamp comprises a plate 22 pivoted at 25 to an arm 23. A handle 31À enables the operator to put pressure on the work without risk of injury. The other end of the arm 23 is pivoted to a bracket 28 fixed to the table 18 by two pivots containing springs one of which presses the arm and guard sideways against the fence 20 and the other acts to counterbalance the weight of arm and guard and permit of automatic vertical adjustment. The front of the guard is inclined as shown so that the work on being pushed forward raises the guard. A vertical flange 35 on the back of the guard is curved away from the fence so as to provide similar action when board is placed on its edge and flat against the fence, and is then pushed forward over the cutter. The work is then pressed down by means of an arcuate foot 40 on a stem 41. fitted with a handle 44 and mounted in the end of a swivelling arm 43 carried by the bottom of the guard-plate.
Patent GB-1339867-A (GB)
Title: Safety closure
IPC: B65D50/04
Filed: 1972-04-06
Abstract: 1339867 Safety closures H GRAY 29 March 1972 [31 March 1971] 14849/72 Heading B8T To unscrew a safety closure, an outer cap 14 is depressed against the action of resilient tongues 26 formed on an inner cap 12 so that cams 32 engage cams 36 on the cap 12. A web 42 is broken as cap 12 is unscrewed. To screw on cap 12, the cap 14 is turned but not depressed so that cams 32 bear on the free edges of tongues 26. The tongues and cams 32 may be on cap 12 and the cams 36 may be on cap 14. The tongues (26a, 26b), Figs. 3-4 (not shown), may engage recesses on cap 12 to turn it. A cam (60) on the inner cap (12c), Fig. 5 (not shown), may engage a slot (62) in the outer cap (14c).
Patent GB-553493-A (GB)
Title: Improvements in locking nuts
IPC: F16B39/32
Filed: 1942-10-23
Abstract: 553,493. Locking nuts. PETERS, W. C: Oct. 23, 1942, No. 14877. [Class 89 (i)] [Also in Group XXII] A self-locking nut has a split steel ring d fitted into a curved undercut recess in the nut which is tapped so that the thread in the nut and ring is continuous. A taper pin e is driven into a hole in part in the ring and in part in the nut to prevent relative rotation and crowd the ring over to an eccentric position closing the split. In manufacture the grooved nut and ring are separately made, the ring is closed sufficiently to pass into the groove and is expanded therein by a rotating and axially moving taper drifts. The hole for the pin is drilled diametrically opposite the split. The pin may have a thin head to assist in retaining the inserted ring and to act as an indicator to prevent the nut from being used with this face towards the work. The nut is tapped from the solid end and only the tapered part of the tap is allowed to enter the ring. The tap is removed by unscrewing.
Patent GB-102601-A (GB)
Title: Improvements in Magazines for Firearms.
Inventor: HAMMOND GRANT
IPC: F41A9/65
Filed: 1915-12-15
Abstract: 102,601. Hammond, G. Dec. 15, 1915. Breech actions, sliding breech-block.-Relates to means for locking a bottom closing-plate to a magazine, of the kind in which the plate has lips engaging grooves in the magazine and is locked by a vertical spring bolt mounted in an aperture or well in the magazine wall and entering a hole in the plate. According to the invention, the hole 62 is enlarged on the outer side of the plate 55 to form a recess 67, and the bolt 58 is formed with a prong 61 entering this recess. To unlock the closing-plate 55, an instrument is inserted in the recess 67 against the prong 61, thus withdrawing the main part of the bolt 58 from the hole. The shoulder at the bottom of the recess prevents the releasing-instrument from entering too far.
Patent GB-460350-A (GB)
Title: Improvements in concentrating latex
IPC: C08C1/12
Filed: 1936-05-28
Abstract: <PICT:0460350/III/1> The invention described in the parent Specification, in which latex is concentrated by evaporation by maintaining a rising film of latex of substantial uniform thickness by rotation about a vertical axis, is modified in the following respects: (1) Provision is made whereby a current of hot air or the like is caused to flow wholly or mainly in close contact with the film; (2) The film is produced by rotation of a structure within a stationary containing vessel; (3) The inner surface of the containing vessel approximates to paraboloidal formation sufficiently closely to give the desired degree of thickness uniformity.  Whereas the vessel shown in the parent Specification is of paraboloidal shape, the vessel of the present invention may have a hemi-spheroidal lower part merging into a frusto-conical upper part.  In the apparatus shown, latex is fed by a pipe 17 into the bottom of a fixed vessel 10 having a substantially hemi-spheroidal lower part 15 merging into a frusto-conical upper part.  The latex is rotated and thereby caused to rise as a thin film by a member of spaced vanes 26 fixed by ties to a central shaft 28 which is rotated by a motor 29.  The shaft passes concentrically through a tube 12 projecting upwards above the level of such latex as collects in the well of the vessel.  The concentrated latex passes out through an orifice 43 to an outlet conduit 44.  Hot air is admitted through a pipe connected to the tube 12.  Escaping from the top of the tube 12 the air impinges against a conical disc 19 and is directed in an annular stream towards the film of latex.  The disc forms the base of a frusto-conical drum 20 which nearly fills the space above the outlet of the tube 12, leaving only a narrow annular space 21 up which the hot air flows in close contact with the film of latex. The air passes out through orifices 23 in the lid.
Patent GB-870159-A (GB)
Title: Improvements in or relating to pressure gauges
Inventor: BROWN THOMAS
IPC: G01L7/16
Filed: 1958-05-10
Abstract: 870,159. Pressure gauges. PNEUMATIC COMPONENTS Ltd. April 10, 1959 [May 10, 1958], No. 15064/58. Class 106 (2). A pressure-gauge, e.g. for tyres, comprises a casing 1 in which a piston 8 operates against a spring 17, the piston having an extension 23 projecting from the end 20 of the casing, and an abutment 29 engaging an indicating sleeve 26 surrounding the extension 23 and held by friction in any position into which it is moved. The piston 8 is fixed to a member 14 having an axially-threaded bore 21 to receive a screwed stem 22 of the extension 23. The indicating- sleeve 26 is held frictionally in the casing 1 by a spring clip 28 in a circumferential groove. The protruding part of the extension 23 has a knob 30 by which piston 8 may be manually operated to expel from the casing any liquid which may have entered, e.g. from water-ballasted tyres. The knob 30 also enables the extension 23 to be rotated to adjust the reading, the piston 8 being held against rotation by a pin inserted through a hole 32 in the casing 1 and through a hole 31 in the side of the piston brought into register with the hole 32. The hole 32 also enables the interior of the gauge to be lubricated.
Patent GB-430771-A (GB)
Title: Improvements in the construction of portable buildings
IPC: E04C2/38
Filed: 1934-05-18
Abstract: 430,771. Furniture joints. THORN, J. W., Oakfields, Brampton Road, Bexleyheath, Kent. May 18, 1934, No. 15076. [Class 52 (ii)] [See also Group X] The upright and horizontal members of wooden frameworks are connected together by means of metal brackets, each comprising a flat triangular plate g and a metal bar k with turned over ends, the bar being disposed along the inclined edge of the plate which is bent over to enclose it. Both the bar and the plate are secured to each of the members of the framework.
Patent GB-1058852-A (GB)
Title: Trays and like containers
IPC: B65D1/26
Filed: 1964-04-13
Abstract: 1,058,852. Trays and like containers. ILLINOIS TOOL WORKS Inc. April 13, 1964 [April 12, 1963], No. 15164/64. Headings B8D and B8P. A container 1 made of sheet plastics material comprises side walls 3 which extend upwardly and outwardly from a flat bottom 2 in a series of curved, generally triangular, surfaces 4 which merge or intersect with another series of diamond or tear-drop shaped areas 5. These surfaces 5 merge with triangular areas 6. The diamond or tear-drop shaped areas 5 are in the form of recesses which extend inwardly about a central line 10 and they consist of triangular planes 8 and 9. The triangular areas 6 form recesses which extend inwardly about a central line 10 and consist of triangular planes 11 and 12. The triangular areas 6 have their base lines in the same plane as the flange 13 which extends outwardly from them and forms a rim for the container.
Patent GB-565339-A (GB)
Title: Improvements in or relating to fire extinguishing powders
IPC: A62D1/00
Filed: 1942-10-30
Abstract: 565,339. Fire extinguishing. CHROBOK, P. Oct. 30, 1942, No. 15275. [Class 47 (ii)] A powder for fire extinguishing comprises a mixture of calcium carbonate, ammonium bisulphate and sodium bicarbonate ground to a fine powder such as will pass through a screen of about .25 m.m. mesh. Specification 562,003 is referred to.
Patent GB-136771-A (GB)
Title: Improvements in or relating to Pouring Attachments for Petrol and other Cans.
Inventor: TAPP WILLIAM HENRY
IPC: B65D25/40
Filed: 1919-06-18
Abstract: 136,771. Tapp, W. H. June 18, 1919. Tapping; venting- apparatus. - A pouring- attachment for petrol and other cans, which serves also as a closure, comprises a pair of truncated conical portions 1, 2 united at their base edges, a filter gauze 3 being held in this joint, inlet and cutlet tubes 4, 5 connected to the apices of these conical parts, and a narrow vent-tube 7 passing down the tube 4 and out through the side of one of the conical parts. A washer 6 of cork &c, may be provided on the tube 4.
Patent GB-561093-A (GB)
Title: Mulling apparatus
IPC: B22C5/04
Filed: 1942-10-30
Abstract: 561,093. Mullers or pulverizers. DEHN, F. B. (Beardsley & Piper Co.). Oct. 30, 1942, No. 15298. [Class 59] A mulling-apparatus in which a muller travels round the side wall of a cylindrical receptacle has a lining of vulcanized rubber detachably secured to the wall and a replaceable ring - shaped outer base around which scrapers are carried. The mullers 9, Fig. 1, are carried on freely pivoted arms 66 mounted on a cross-head 36 which is rotated by a central shaft 39 through a worm 54. The receptacle has a metal side wall 7 supported on the bottom 12 and is provided with a detachable rubber lining 13 made in sections and secured by bolts 26. The lining is formed to provide spaces 30 which add to its resilience. The bottom comprises a central ring 12 formed in one with a tubular part 17 enclosing the shaft housing and with a depressed extension forming a seat for the removable outer ring 15 ; the outer part of the extension is formed as a flange 18 with a lip 20 forming a seating for the wall. Scrapers 10, Fig. 2, depend from the outer ends of the cross-head and the apparatus is provided with a side door 32.
Patent GB-529153-A (GB)
Title: Improvements in and relating to baking trays
IPC: A21B3/15
Filed: 1939-05-23
Abstract: 529,153. Baking trays. WOODCOCK, A. B., and PINDER, W. May 23, 1939, No. 15333. [Class 66] Shallow quadrilateral trays for baking swiss roll mixture &c. having side walls 4 and vertical end walls 6, are formed by setting up a blank from outwardly inclined which triangular corner pieces have been removed and welding together the edges 3, 5 of the end and side walls. The side walls preferably merge into the base 7 by a part 3a of arcuate section. Handles are welded to the outsides of the end walls.
Patent GB-594171-A (GB)
Title: Improvements in or relating to repeatered submarine signalling cables
IPC: H02G15/14
Filed: 1945-06-18
Abstract: 594,171. Submarine cables. STANDARD TELEPHONES & CABLES, Ltd., and WESTON, W. K. June 18, 1945, No. 15416. [Class 36] The repeater 1, or its case, of a coaxial submarine signalling cable is connected to the outer conductor 3, which is in contact with the water, by a circuitous conducting lead 5 so as to provide a long seepage path. The lead 5 may be in the form of a spiral or a zig-zag and is joined to conductor 3 at 8. The repeater 1 is surrounded by a water-repellent insulation 62 and is joined to the cable insulation 6, e.g. polythene, by insulation 61 which may be introduced under pressure by injection moulding after the lead 5 has been secured. The insulation 62 may also be formed at the same time. The lead 5 may be insulated before the insulation 61 is added. The repeater 1 may be joined to a piece of stub cable which is afterwards joined to the main cable in usual manner. The cable armouring 7 may be extended over the repeater unit.
Patent GB-231415-A (GB)
Title: An improved means for illuminating measuring devices
IPC: G01D11/28
Filed: 1924-06-27
Abstract: 231,415. Veigel, A. [Firm of]. March 31, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Illuminating, electric means for. - The dial plate of a speedometer, clock, &c. is illuminated by an electric incandescent lamp mounted in the cover glass of the instrument. The lamp c, Fig. 1, is screwed into a socket of a revoluble switch button d, the flange e of which rests on the shoulder of a sleeve f inserted in an aperture formed in the cover glass, the sleeve being held in position by a nut h provided with a covering ring g. The socket of the lamp-holder and the insulated central contact are connected by wires i, k, embedded in the button d, to contact springs m, n, Fig. 3, which co-operate with contacts o, p associated with the electric leads. The contacts o, p may be formed, as shown, with spring contact arms for co-operation with a metal arm and an insulated contact mounted thereon. Springs may be provided on the sleeve f for engagement with recesses in the button d to hold the latter in the on or off position.
Patent GB-495119-A (GB)
Title: Improvements in beadings, edgings, mouldings and the like
IPC: A47C31/02
Filed: 1937-06-04
Abstract: 495,119. Beadings. BROOKE, A. June 4, 1937, No. 15482. [Class 141] [Also in Group X] In beadings and similar finishings for upholstery of the kind in which a_base portion receives the attachment means which are covered by a folded top portion retained by spaced wires, the wires are secured in the beading by causing one end to penetrate a core of the beading. The wires d, which may be arranged diagonally as shown in Fig. 1, have bent ends embedded in the core a<1>, Fig. 2, before applying the covering e. Fig. 4 shows the beading in its folded form.
Patent GB-1048775-A (GB)
Title: A semi-submersible floating platform unit
IPC: B63B35/44
Filed: 1965-04-12
Abstract: 1,048,775. Offshore floating structures. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. April 12, 1965 [April 13, 1964], No. 15504/65. Heading E1H. A floating platform unit for carrying out offshore operations such as drilling or producing a well, comprises four vertical stabilizing columns 11, 12 each having an annular chamber 17 in open communication through ports 13 with the space outside the stabilizing columns and positioned at a level adjacent and above the water level 25. Buoyant cross-bracing hull members 14, 15, 16 extend laterally between the stabilizing columns and near their lower ends. The annular chamber 17 may be divided for reinforcing purposes into a series of smaller chambers by vertical plates 18 having fluid flow ports 19. The four stabilizing columns 11, 12 are selectively flooded to lower the entire platform in the water and in heavy weather flooding of the annular chambers 17 reduces rolling and pitching of the platform so that drilling may continue.
Patent GB-1330096-A (GB)
Title: Phase corrector
IPC: H03F3/191
Filed: 1972-04-04
Abstract: 1330096 Transistor amplifying circuits THOMSON-CSF 4 April 1972 [6 April 1971] 15550/72 Heading H3T A phase corrector includes an output adder 4, Fig. 1, having two inputs 41, 42 coupled to the input 20 of the phase corrector, one, 42, through a device which gives a voltage qVe where q is a real number and Ve the input voltage of the phase corrector, the other, 41, through an amplifier 1 having a load constituted by a parallel resonant circuit the three parallel branches of which are respectively formed by an adjustable capacitor 3, an adjustable inductance 2 and a fixed damping resistor R, the complex gain G of the amplifier being equal to mZ<SP>1</SP>/R where Z<SP>1</SP> is the impedance of the damped resonant circuit and where m is equal to - 2q. In this embodiment, the device comprises equal resistors 10, 11 and resistor 12 is equal to resistor 13 in value: in a second embodiment (Fig. 2, not shown) resistor 13 has twice the value of resistor 12 and the input 42 is derived directly from terminal  2 0. The adder 4 comprises two transistors 44, 45, Fig. 3, having equal emitter circuit resistors 46, 47 and with their collectors connected together, the two bases comprising terminals 41, 42 respectively.