baber/WOPTO huggingface dataset:
Patent GB-204756-A (GB)
Title: Improvements in gas burners for fabric singeing and like machines
IPC: F23D14/10
Filed: 1922-06-30
Abstract: 204,756. Ewing, A., Henshilwood, A. B., and Graham, C. June 30, 1922. Atmospheric gas burners; burners, application of.-A gas burner for singeing fabrics and the like comprises a cylinder 2, provided with a preferably central inlet pipe. 15 for the gaseous mixture and an axially arranged screwed shaft 8. mounted in bearings in the end parts of the cylinder and provided with a hand-wheel, two pistons 7 being mounted on right- and left-handed screw-threaded portions of the shaft 8, one on either side of the pipe 15, so that, on rotating the hand-wheel, the pistons move towards or away from one another thereby regulating the length of the flame. Collars 14 limit the inward movement of the pistons. The cylinder 2 is formed in halves having lateral flanges 3<a>, 3<b> and 4<a>, 4<b> respectively, the flanges 3a, 4a being secured together by bolts 5 to form a gastight joint and the flanges 3b, 4<b> being secured together by bolts 6 and provided with a series of indentations a<1>, b<1> respectively between facets c to form passages, which expand laterally from their lower ends c<2> to their upper ends c<3> and communicate with a narrow slot c<4> so that a continuous flame is produced from end to end of the burner. A central opening d may be formed through each pair of facets c. Each piston 7 has a projection 11 which is forced by a spring 12 into a groove 13 in the wall of the cylinder 2 to prevent rotation and is provided with metal packing rings 16, which engage transverse openings in lateral arms 11<a>, 11<b> of the projection 11.
Patent GB-1038107-A (GB)
Title: Improvements in or relating to changeover switches
IPC: H03J5/32
Filed: 1963-05-07
Abstract: 1,038,107. Radio receiving apparatus. H. MAEDA. May 7, 1963 [May 9, 1962], No. 18020/63. Heading H3Q. In a switch for a high-frequency tuner, the rotor arm 1 does not make conductive connection with the fixed studs 3, a disc 2 (Fig. 1, not shown), of material of high dielectric constant being interposed so that the connection is purely capacitive. The disc 2 may be attached to the arm 1 or to the stud 3. In a modification the arm 1 (Fig. 2, not shown), is of insulating material and carries a conductive contact la.
Patent GB-596027-A (GB)
Title: Improvements in or relating to thermionic valve signalling systems
IPC: H04Q1/30
Filed: 1945-07-16
Abstract: 596,027. Valve relay circuits. HADFIELD, B. M. July 16, 1945, No. 18089. [Class 40 (v)] A biassing voltage proportional to an input signal with distorted wavefronts having positive and negative excursions is developed across the cathode resistor R1 of a valve Fig. 1, a capacitor C1 being adapted to be periodically connected across the resistor by means of a switching device under the control of the input signal. The valve V1 may include a relay R2 in the anode circuit and a biassing network in the grid/cathode circuit including a rectifier MR1 so that the ratio of the current change in one direction to the total change is independent of the signal. The positive-going wave applied to the grid causes a rise in the cathode potential, the capacitor C1 charging over the rectifier and during the succeeding negative-going wave, the charge on the capacitor is retained due to the high reverse resistance of the rectifier. The rectifier may be reversed where it is desired that the negative excursions shall be effective. In a modification, Fig. 2 (not shown), a further capacitor and rectifier may be added. The rectifier may be connected to a variable tap on the cathode resistor, Fig. 3 (not shown), and variable resistors added in the anode and cathode leads and in the screen lead of a pentode to allow adjustment for valves of varying characteristics. In a further modification, Fig. 6, the capacitor C7 is connected to a tap on the cathode resistor R14, and a rectifier MR8 is connected to a potential divider R15, R16 so that in the absence of a signal when the potential across resistor R14 falls, the rectifier conducts, biassing the valve nearer to cutoff and maintaining the relay X in the released state. Capacitors C8, C9 may be added to reduce the effect of transients and low-frequency ripple.
Patent GB-638796-A (GB)
Title: Improvements in fluorescent tubular lighting fittings
IPC: F21V19/00
Filed: 1948-07-06
Abstract: 638,796. Tubular-lamp fittings. VERITYS, Ltd., and FORTH, J. W. July 6,1948, No. 18094. Drawings to Specification. [Classes 75 (ii), 75 (iii) and 75 (iv)] Trough reflectors for tubular-lamp fittings are provided with snap-on end plates and can be nested together when the end plates are removed. The subject-matter of this Specification is the same as that described in Specification 638,787. The Provisional Specification also states that the end plates may have flanges fitting both inside and outside the reflector and in this case the reflector may be constructed to fold transversely to some extent.
Patent GB-803923-A (GB)
Title: Improvements in and relating to cushions
Inventor: WHITTAKER HARRY
IPC: B68G7/10
Filed: 1956-06-12
Abstract: 803,923. Cushions. LEBUS, Ltd., H. May 23, 1957 [June 12, 1956], No. 18151/56. Class 52(4) A cushion has a core 1 of foamed latex provided with a recess 3 around the periphery of the top and bottom to accommodate the seams of a cushion cover having a top 4 and bottom 5 seamed to side walls 6, the seams including piping formed by material 8 covering a cord 7.
Patent GB-696169-A (GB)
Title: Improvements in or relating to permeable gypsum plaster molds
IPC: C04B28/14
Filed: 1951-08-02
Abstract: A fully hydrated gypsum mould for casting aluminium, magnesium, &c. has uniformly distributed air bubbles under 0.02in. in diameter, permeability over 20 on the American Foundrymen Society scale and a compressive strength over 50 p.s.i.  It is made by slowly mixing gypsum and an aqueous solution of a sulphonated hydrocarbon foaming agent while stirring, agitating while introducing air, further agitating to reduce the size of the air bubbles and pouring into a mould shaped to produce the mould desired.  To 1 lb. of calcined gypsum may be added 0.85 lb. of a 0.4 per cent. solution of sodium alkyl naphthalene sulphonate. The first agitation may be effected by a perforated disc rotated at 2,000 r.p.m. and the total agitation should last about 60 seconds. 3 to 50 per cent. of a filler, e.g. talc, asbestos or silica, and up to 1 per cent. of an accelerator or retarder, e.g. terra alba, sodium sulphate, chloride or citrate or citric acid, may be added to the gypsum.  After setting, the gypsum mould is extracted and dried at 180 DEG  to 240 DEG  F.  Moulds so produced may be used for casting aluminium alloy blades for torque converters.
Patent GB-153063-A (GB)
Title: Improvements relating to aircraft for spraying purposes
IPC: B64D1/16
Filed: 1919-07-23
Abstract: 153,063. Sutherland, R. J. B. July 23, 1919. Garden-engines and crop-sprayers.-An airship, aeroplane, or helicopter fitted with means for precipitating liquid or granular solids on to the ground for the purpose of watering crops, extinguishing fires or for distributing seeds, fertilizer or insecticide on to fields or crops, has a container constructed as set out below and is provided with a pump and hose for refilling the container while in the air. Fig. 3 shows part of an airship from which is suspended a tank a communicating with a spraying-chamber d through pipes f fitted with valves g which are controlled by gearing g<2> and shafts g<1> actuated from the car. When material in powdered form is to be distributed, means for agitating the material may be provided. The tank is charged by a pump j and suction hose, the latter being adapted to be lowered by winding- gear driven from the engine so that the airship need not descend.
Patent GB-1141913-A (GB)
Title: Wall plug
IPC: F16B13/12
Filed: 1966-04-27
Abstract: 1,141,913. Wall plugs. R. FAILLETTAZ. 27 April, 1966 [7 May, 1965], No. 18423/66. Heading F2H. A wall plug is moulded from synthetic plastics, and comprises a tubular body 1 having tongues 8 extending longitudinally of the body, and formed integrally therewith, defined by substantially U-shaped cuts in the wall of the body, a free end part 9 of each tongue having an enlarged portion which projects into the interior of the plug so that the introduction of a screw, when the latter is in a hole, results in the end parts being forced against the wall of the hole in which the plug is lodged. The plug is formed with a solid nose portion 2 which has longitudinal slits 5 extending into the tubular portion 1. The free end of each tongue 8 also projects outwards from the external surface of the part 1, and has an external face which is angled to form an edge which cuts into the wall of the hole and prevents relative rotation, Fig. 4, not shown. Ribs 3 are formed on the plug body. The external faces of the tongues may be corrugated.
Patent GB-141587-A (GB)
Title: Improvements in wireless direction finding apparatus
IPC: G01S3/06
Filed: 1919-07-25
Abstract: 141,587. Chandler, C. K. July 25, 1919. Bearings, determining wirelessly; directive signalling. - A directionfinder, particularly suitable for use on aircraft, is provided with a correcting coil or coils or loop, in which the received waves produce a current which can be adjusted to neutralize the voltage produced in the direotion-finding aerials owing to the mutual induction between the latter and the bracing-wires and other metal parts of the aircraft in which the received waves set up currents. In the arrangement shown in Fig. 1, two rotary coils 3, 4, arranged at right-angles, are connected to a detector circuit 5 in known manner, and a correcting-ooil 6, arranged close to the coils 3, 4, has one end connected to a switch 7, geared so as to rotate with the coils 3, 4. The contacts of the switch 7 are connected through a wave-change switch 8 to a series of condensers', inductances, or resistances 9, of suitable value to produce the correct neutralizing voltage for various positions of the coils 3, 4. As these values vary with the length of the received waves, several sets 9, 10 &c. of such condensers &c. are provided, calculated for different wave lengths, one or other of these sets being connected up according to the position of the wave-change switch 8. The correcting-coil 6 may consist of several turns round the fuselage near the directional coils 3, 4. In modifications, the switch 7 may connect up tappings from the correcting-coil, and the latter may be movable relatively to the coils 3, 4. In the Bellini-Tosi arrangement, the correcting-coil 13, Fig. 3, is placed near one of the fixed loop aerials 14, 15, the adjustable coil 16 being connected to a detector circuit 17. In another modification, two correcting-coils at right-angles to each other are used.
Patent GB-615706-A (GB)
Title: Improvements in or relating to arrangements for detecting frequency modulated waves
IPC: H03D3/00
Filed: 1943-11-08
Abstract: 615,706. Frequency and phase modulation. PHILIPS LAMPS, Ltd. Nov. 8, 1943, No. 18549. Convention date, July 16, 1942. [Class 40 (v)] In a receiver for frequency or phase modulated waves, the received wave is given a phaseshift, nearly equal and in the opposite sense, to the phase-shift representing the modulating signal with the result that the phase deviation is reduced to a small angle and can be detected by the phase comparison method. As shown, a F.M. wave is fed through a device T, which may be of the kind described in Specification 616,871, as open to inspection under Sect. 91, where it is phase-shifted by a current i which is proportional to the varying phase-shift of the received wave. The wave with much reduced phase deviation is fed to a frequency-changer FC and the resultant I.F. is amplified in the amplifier IFA which, owing to the reduced phase deviation, need only pass the usual side bands. The I.F. passes to a phase-comparison device MT where it is compounded with an unmodulated wave generated at LO and kept at intermediate frequency automatically, e.g. by the means described in Specification 615,886, [Group XXXV]. The audio-frequency output is amplified at PA and passes back as the control current i to the phase-shifter T. If the froquency of the received wave is proportional to the modulating signal, it is necessary to differentiate the current i to reproduce that signal, and this may be effected by inserting an inductance coil L in the current lead, and utilizing the voltage across this coil to control an amplifier PO and loud-speaker LS.
Patent GB-1360051-A (GB)
Title: Closures
IPC: B65D51/00
Filed: 1971-06-02
Abstract: 1360051 Stoppers &c R S LUTZKER A MINUTILLO and L D LUTZKER 2 June 1971 18684/71 Heading B8T A thermoplastics closure 20 comprises a top wall 30 having a pair of depending feet 40, 42, and a body portion 32 having a sealing lip 34. When applied to a can, the body portion 32 is forced through the opening 22 and the closure assumes the position shown in Fig. 6. In other embodiments, the top wall can be curved, convex upwards, with the feet removed (Fig. 8, not shown) and the lip 34 can be replaced by a number of equivalent devices (Figs. 9-14, not shown) but in all cases the top of the lip 34 or equivalent is higher than the bottom of the feet 40, 42, or equivalent, when not in sealing engagement.
Patent GB-1123299-A (GB)
Title: Addition polymer and process for the preparation thereof
IPC: C08F222/20
Filed: 1967-04-24
Abstract: A polymer comprises (A) 50-95% by weight of units derived from at least one C2- 16 ethylenically unsaturated monomer; and (B) 5-50% of units of formula <FORM:1123299/C3/1> <FORM:1123299/C3/2> where R1 is a C2- 6 ethylenically unsaturated hydrocarbon group, R2 and R4 are -OH or -CH2OH, R3 and R5 are -H, -CH3 or -C2H5, R6 and R7 are C3- 17 saturated aliphatic hydrocarbon radicals or aromatic radicals, R8 and R9 are -O-CO-R6 or -CH2-O-CO-R7, the monomer units of groups (A) and (B) being different.  The (A) units of the polymer may be derived from methyl methacrylate, acrylic acid and either styrene or acrylonitrile; or methyl methacrylate, 2-ethylhexyl acrylate and methacrylic acid.  The polymer may be prepared by reacting at 200-250 DEG  C., a C4- 8 ethylenically unsaturated dicarboxylic acid or anhydride, e.g. maleic, fumaric or itaconic acid, with a triol, e.g. glycerine or trimethylol ethane or propane, and a C4- 18 saturated aliphatic or an aromatic monocarboxylic acid, e.g. a mixture of C7- 11 aliphatic acids, lauric acid or benzoic acid, in a molar ratio of 1:2:2, blending the reaction product with the above C2- 16 monomer, dissolving the blend in a solvent, e.g. xylol, aromatic naphtha, and adding a polymerization catalyst, e.g. di-tert.-butyl peroxide, cumene hydroperoxide or t-butyl peracetate and refluxing the solution formed to constant viscosity at 60-170 DEG  C.  The above polymer solution may be formed into a coating composition by compounding with a melamine-formaldehyde resin, titanium dioxide, butanol, an alkyd resin derived from glycerol phthalate and coconut oil, a solution of nitrocellulose in methyl ethyl ketone, ureaformaldehyde resin, diacetone alcohol, pine oil and/or benzoguanamine-formaldehyde resin.ALSO:Substrates are coated with a coating composition containing (1) 10-90% by wt. of a polymer comprising (A) 50-95% by wt. of units derived from at least one C2-16 ethylenically unsaturated monomer and (B) 5-50% of units of formula:- <FORM:1123299/B1-B2/1> or <FORM:1123299/B1-B2/2> where R1 is a C2-6 ethylenically unsaturated hydrocarbon group, R2 and R4 are -OH or -CH2OH, R3 and R5 are -H, -CH3 or -C2H5, R6 and R7 are C3-17 saturated aliphatic hydrocarbon radicals or aromatic radicals, R8 and R9 are -O-CO-R6 or -CH2-O-CO-R7, the monomer units of groups (A) and (B) being different and (2) a solvent therefor.  The substrate may be steel panels or aluminium.
Patent GB-1140006-A (GB)
Title: Coating compositions
IPC: C07F9/12
Filed: 1967-04-24
Abstract: 1,140,006. Cellulose-acetate-butyrate compositions. F.M.C. CORP. 24 April, 1967 [6 June, 1966], No. 18713/67. Heading C3F. A composition comprises, by weight, 96- 99À6% of a triaryl phosphate liquid at ambient temperatures and 0À2-2À0% each of (a) a cellulose acetate butyrate containing about 48% butyral and about 6% acetyl and soluble in the phosphate at ambient temperatures and (b) a  cellulose acetate butyrate containing about 37% acetyl and about 13% butyryl and soluble in the hot phosphate, but insoluble therein at ambient temperatures, component (b) being dispersed through the composition in finely divided form. Tricresyl, dicresyl monoxylyl, trixylyl and cresyl diphenyl phosphates are mentioned. Comparative examples disclose compositions based on tricresyl phosphate and (a), together with P.V.C., P.V.Acetate or polystyrene. The composition exhibits thixotropy, and is resistant to syneresis at ambient temperature.
Patent GB-1321134-A (GB)
Title: Date correcting device for a watch
IPC: G04B19/253
Filed: 1971-06-03
Abstract: 1321134 Date indicating DAINI SEIKOSHA KK 3 June 1971 [20 June 1970] 18845/71 Heading G3T A date correcting device for a watch advances the date indication by one day on withdrawing a winding stem 1 to a second outer position after an initial movement from a winding position to a first outer position at which the time indication can be corrected. As shown, movement of the winding stem to the second outer position rotates a setting lever 2 so that an end 2b engages a portion 5d of a clutch lever 5 and an end 2e engages an arm 7b2 of a corrector 7. The corrector 7 operates against the action of a spring 9 to move to a position, shown by a dotted line, whereat a second corrector 5 is moved by a pin 7c engaging a slot 8a. Movement of the corrector 8 indexes a date dial 12 through a portion 8c engaging teeth 12a. The date dial is retained in its new position by a jumper 14 during return of the winding stem to the first outer position.
Patent GB-938859-A (GB)
Title: Improved valve
Inventor: WILSON PETER
IPC: F04B1/20
Filed: 1959-06-02
Abstract: 938,859. Bearings. DOWTY HYDRAULIC UNITS Ltd., and UNIPAT A.G. May 16, 1960 [June 2, 1959], No. 18860/59. Drawings to Specification. Class 12 (1). [Also in Group XXVIII] The relatively rotating valve surfaces of an hydraulic pump are spaced apart by a predetermined gap by means of rollers, fluid bearings or hydrodynamically by tilting pads, and the gap is partially or wholly filled by a coating of solid non-metallic anti-friction material bonded to one surface. The material may be a synthetic resin to which may be added graphite or molybdenum disulphide. Specifications 824,945 and 850,010 are referred to.
Patent GB-1086053-A (GB)
Title: Improvements relating to core supporting platforms for nuclear reactors
Inventor: HOSKINS LEONARD MAXWELL
IPC: G21C5/10
Filed: 1963-05-13
Abstract: 1,086,053. Reactors. FAIREY ENGINEERING Ltd. Aug. 12, 1964 [May 13, 1963], No. 18926/63. Heading G6C. The central portion of a gas cooled graphite moderated reactor, of the zero energy type intended for test purposes, rests on a bed-plate whose periphery is supported by a mounting which provides a devious and elongated thermal conduction path; the mounting includes at least two sliding joints connected in series with regard to the heat conduction path, each joint having a restricted heat conduction crosssection and each allowing horizontal sliding movement. The central test portion of the moderator is removable. Annular plate 30 supports an outer driver region of the core, and is described in Specification 1,086,054. Outer skirt 35 is supported by steel pressure vessel 11. A series of brackets 36 welded to the outer skirt support an annular lower support plate 38 so that it may expand radially but is maintained in axial alignment by loose dowels 41 in radial slots 40. An inner skirt 47 is located by a number of knife edge supports 46, 50 and supported by the lower support plate 38. An upper support ring 52 is located on the inner skirt by dowels 53 and supports the bedplate 22 via a knife edge 52b. Free expansion of the hot bedplate is allowed at three series joints, which also provide a low-flow thermal conduction path. The reactor, has its outer driver region operated at around 60‹ C. and the test region at some 450‹ C., the latter region being heated by circulated hot CO 2 . A thermal insulation as described in Specification 1,086,056 is placed between the two core regions, and the centre of the test region may contain a void tube as described in Specification 1,086,057.
Patent GB-826525-A (GB)
Title: Improvements in variable-ratio vee-belt drives
IPC: F16H9/14
Filed: 1957-06-17
Abstract: 826,525. Expanding-wheel gear. RAUCH, W., and SCHNIZLER, A., [trading as METABOWERK CLOSS RAUCH & SCHNIZLER K.G.]. June 17, 1957 [June 26, 1956], No. 18988/57. Class 80 (2). In a variable-speed pulley drive the side discs 2, 3 of one pulley are adapted to move in opposite directions to vary the effective diameter in engagement with a belt 14 on variation of the centre distance between the co-operating pulleys. A transverse cam rail 12 acts through rollers 13 on a non-rotating locating element 11 engaging the disc 3 through a thrust bearing 9. The disc 2 is coupled to the disc 3 through rack 8, 5 secured thereto respectively and an intermediate pinion 7 mounted upon the hub 1 of the pulley. Alternatively two sliding rods secured to the side discs could be coupled by a lever.
Patent GB-947126-A (GB)
Title: Improvements in or relating to bottle closures
IPC: B65D47/36
Filed: 1962-05-17
Abstract: 947,126. Tamperproof closures. E. GOLDE. May 17, 1962 [May 18, 1961], No. 19091/62. Heading B8T. A tamperproof closure for a bottle comprises a cap 4 with a collar 5 within the bottle neck 1 and skirt 8 outside the neck, and a resilient locking member 3 which engages an annular bead 2 on the neck 1 and a bead 9 on the skirt 8. The locking member 3 has slots 10 for about ¥ of its total height and is of a thicker plastics material than the cap 4. The collar 5 may be closed at the bottom in the form of a cup. To close the bottle, the member 3 is preferably pressed into the cap 4 before the whole closure is pushed on to the bottle neck 1 so that the member 3 engages beneath the bead 2. In another embodiment, the cap 4 may have a pouring spout with a severable end. Specification 799,392 is referred to.
Patent GB-1190329-A (GB)
Title: Magnetic Filter
Inventor: TYRRELL ARTHUR JAMES
IPC: H01F7/06
Filed: 1968-04-23
Abstract: 1,190,329. Magnetic separation. M.E.L.EOUIPMENT CO. Ltd. 10 Feb., 1969 [23 April, 1968], No. 19156/68. Heading B2J. A magnetic filter comprises two pipes 1, 2 of ferromagnetic material each of which contains a filtering grid 6 of ferromagnetic material and is surrounded by an energizing coil 12 for inducing a magnetic field in the grid, the pipes being arranged side by side and connected by yokes 3, 4 of ferromagnetic material to form a magnetic circuit. As shown each grid comprises a number of strips 9 secured in parallel spaced relationship by non- magnetic bars 10. The grids are contained in and held together by a sleeve 11 and gratings 7 extend across the pipe at each end of the series of grids. A plurality of coils 12 are provided and are held in position by spacer rings 15. The filter assembly is surrounded by a ducting 16 and a fan 17 is provided for cooling purposes.
Patent GB-1094921-A (GB)
Title: Improvements in or relating to the manufacture of lead 4:6 dinitroresorcinate
Inventor: TAYLOR GEORGE WILLIAM CHARLES
IPC: C07C205/23
Filed: 1948-07-17
Abstract: Lead salts of 4:  6 dinitroresorcinol are obtained in a granular free flowing form by interacting aqueous suspensions of lead hydroxide and 4:  6 dinitroresorcinol at a temperature depending on the relative proportions of the reactants employed, which is so adjusted that the lead salt is precipitated as a mixture of the crystalline form and a minor amount of the colloidal form.  Using those proportions giving an acid salt a precipitating temperature between 50 DEG  and 60 DEG C. is suitable, while for a salt containing 52% or 62% lead respective suitable temperature ranges are 40-50 DEG  C. and 18-28 DEG  C.