baber/WOPTO huggingface dataset:
Patent GB-658837-A (GB)
Title: Improvements in or relating to circuits for automatic frequency-correction
IPC: H03L7/08
Filed: 1948-10-08
Abstract: 658,837. Automatic frequency control systems. PHILIPS ELECTRICAL, Ltd. Oct. 8, 1948, No. 26277. Convention date, Oct. 13, 1947. [Class 38 (iv)] Relates to automatic frequency control systems of the kind in which a valve oscillator is maintained in synchronism with a standard source by a valve reactance to which a correcting voltage is applied; and consists in deriving grid-cathode bias for the reactance valve from a resistor included in the cathode lead of the oscillator. The oscillator valve 1 has the normal three-point connection to the tuned circuit 4, which is shunted by the reactance valve 13. Oscillations from the anode of the valve 1 are mixed at 23 with oscillations from a standard source 22 to provide a correcting voltage (e.g. in the manner described in Specification 577,019), which is applied to a grid of the reactance valve 13. A condenser-shunted resistor 19 included in the earth connection of the oscillator valve 1 is also included in the earth connection of the reactance valve cathode, and thus affords grid to cathode bias for this valve. The grid leak 20 of the valve 13 is earthed, and the grid leak 7 of the valve 1 is preferably connected to its cathode. When the supply voltage drifts, two effects are produced on the reactance valve, the change in oscillatory frequency causing a change of the correcting- voltage applied to its grid, and the change in direct current through the resistor 19 causing a change in its cathode voltage. These two effects are arranged to oppose each other, by suitable choice of the polarity of the quadrature voltage applied to the reactance valve grid. In the example shown, this is affected by coupling the anode of the valve 13 to one end of the tuned circuit 4, and by coupling the grid of the valve 13 to the opposite end of the tuned circuit 4 through a quadrature network 24, 25. As a further frequency control, a saturable-core inductance 26 may be connected across part of the tuned circuit 4, and its inductance value varied by a coil 27 in the D.C. supply to the reactance valve.
Patent GB-1099666-A (GB)
Title: Method and apparatus for feeding pronged elements to an attaching machine
IPC: B65B51/05
Filed: 1966-06-13
Abstract: 1,099,666. Attaching pronged elements. TALON Inc. June 13, 1966 [June 17, 1965], No. 26349/66. Heading B4C. An apparatus for feeding pronged elements to a driving plunger 14 of an attaching machine comprises a guide track 28 extending from a supply hopper 24 and a carrier means 32 arranged to be moved in an oblique path in order to remove the endmost element from the track and transport it to a position wherein it may be secured to an article by means of the plunger. The carrier, whose movement may becontrolled by suitably-shaped cams, is formed with a nose portion 34 arranged during the first part of the movement to enter between the prongs 27 of the endmost element and then, by a rearward movement, the element is withdrawn from the track to a position under the plunger; the element is then secured to the plunger by suitable means such as a magnet.
Patent GB-717594-A (GB)
Title: Improvements relating to hypodermic needles
Inventor: EVES GEORGE WELLESLEY
IPC: A61M5/32
Filed: 1951-11-13
Abstract: 717,594. Hypodermic needles. WARD, F. KINGDON-. Oct. 22, 1952 [Nov. 13, 1951; Dec. 4, 19511, Nos. 26558/51 and 28385/51. Class 81(2) The point of a hypodermic needle is formed by imposing a plane, or slightly concave, bevel on the end of a tubular shaft, the bevel extending down to the line of intersection of two continguous plane surfaces and the cross-section of the needle adjacent to the point being bounded by a straight-sided figure. Preferably the two plane surfaces extend at approximately 90 degrees to each other. In the form shown four plane surfaces 17, 18, 19, 20 are formed on the needle shaft, so that its cross-section is square, and the, bevel extends from one line of its intersection 21 to the line diametrically opposite thereto, and the edges of the faces 17, 18 form the cutting edges of the needle.
Patent GB-414237-A (GB)
Title: A process of treating mineral oil distillates
IPC: C10G50/00
Filed: 1933-09-27
Abstract: In the manufacture of stable synthetic oils by polymerizing cracked mineral oil distillates containing substantial amounts of unsaturated hydrocarbons, the distillates are first treated with not more than 2 per cent of anhydrous aluminium chloride at an elevated temperature not lower than the temperature employed for the polymerization proper, separated from the resulting sludge, and may be distilled. Preferably this preliminary treatment is carried out within 5 DEG  C. of the B.P. of the distillate.  Economy of catalyst and high yield are obtained by separating the untreated distillate into fractions, preliminarily treating only some--determined experimentally--of these fractions, and subjecting to the proper polymerization with aluminium chloride or other catalyst these fractions mixed or not with the untreated fractions.  The distillates may first be desulphurized by fractionation or by washing with alkaline solution.  In an example, the 65--75 DEG  C. fraction of a vapour-phase cracked gasolene is first treated at 70 DEG  C. with 1 gm. of aluminium chloride per 100 cc., distilled, and then treated with 4 gm. of chloride per 100 cc. at 30 DEG  C. for 22 hours; lubricating oil of viscosity 54 DEG  E. at 50 DEG  C. results.  Specifications 355,214 and 362,465 are referred to.
Patent GB-1219803-A (GB)
Title: Cellular foamed products prepared from polymers of vinyl chloride and process for their preparation
IPC: C08J9/00
Filed: 1968-06-04
Abstract: 1,219,803. Cellular vinyl chloride polymers. TORAY INDUSTRIES Inc. 4 June, 1968 [3 June, 1967; 22 Aug., 1967], No. 26651/68. Headings C3C and C3P. A cellular foam comprises a vinyl chloride polymer cross-linked by 0À1 to 30%, by weight of the polymer, of at least one cross-linking agent which is a compound having at least two polymerizable double bonds in the molecule, the polymer being: a homopolymer of vinyl chloride; a copolymer containing more than 50% by weight of vinyl chloride, or a mixture of thermoplastic polymers containing at least 40% by weight of the above homopolymer or copolymer; the vinyl chloride homopolymer or copolymer having a cross-linking degree (as defined by a method of test) of 5 to 90, and the foam having an average cell diameter of 10 to 500 microns, an apparent density of 0À015 to 0À7 g./c.c. and at least 50% of the cells of the foam being closed cells. The foam may be made by mixing the polymer, cross-linking agent and a foaming agent which is vaporized or decomposed on heating to give a gas, irradiating the mixture with radiation of a wavelength less than visible light and heating the mixture to a temperature higher than that at which gas is liberated from the foaming agent and higher than the softening point of the polymer. In the examples, sheets of polyvinyl chloride mixed together with ethylene/vinyl acetate copolymer, dioctyl, diallyl, butylbenzyl, or dibutyl phthalate, azodicarbonamide, tin laurate, hydroquinone diacrylate or dimethacrylate, lead stearate, bisphenol A dimethacrylate, TiO 2 , dinitrosopentamethylene tetramine, bis-(#- (meth- or) acryloyloxyethyl) terephthalate, bisbenzenesulphonyl hydrazide, hydroquinone divinyl ether, dibutyl tin laurate or maleate, divinyl benzene, chlorinated paraffin and/or polybutadiene; were irradiated and foamed.
Patent GB-482380-A (GB)
Title: Improvements in or relating to evaporators for refrigerators
IPC: F25B39/02
Filed: 1936-10-02
Abstract: 482,380. Refrigerating. PRESSED STEEL CO., Ltd., and ROWLEDGE, E. G. Oct. 2, 1936, No. 26745. [Class 29] An evaporator of the continuous coil type comprises inner and outer casings 11 and 12 of trough-like form secured together at their end peripheries, and a serpentine evaporator pipe 22, which is first bent into U-form, is placed in the space enclosed between the casings, the remainder of this space being filled with a heat retaining brine. One of the polyhydric alcohols may be used as the brine. The refrigerant is supplied to the coil 22 through an expansion valve 21.
Patent GB-1398278-A (GB)
Title: Seed control gate for planters
IPC: A01C7/20
Filed: 1972-06-08
Abstract: 1398278 Seed planters INTERNATIONAL HARVESTER CO 8 June 1972 [13 July 1971] 26787/72 Heading AID [Also in Division B8] A material dispenser for seed &c comprises a hopper and a delivery shoot which contains a control gate, an arm pivotally mounted on the shoot, a biasing member connected at one end to the arm and operatively connected at the other end to the gate, the connection of the biasing member to the arm being movable overcentre with respect to a line through the pivot axis of the gate and the connection of the other end of the biasing member. In the figures, control gate 32 is integral with arm 34 and both pivot on pin 35 which is integral with arm 37. Biasing member 41 is connected to arms 37 and 34 and as arm 37 is moved to the right in Fig. 4 through 180 the member 41 is first stretched and then relaxed as the arm 34 moves through 90 to close the gate 32. The gate is biased into both open and closed positions. As shown in Fig. 1, the shoot leads from a hopper 10 to a seed-planting drum 20 and the gate 32 prevents wastage of seed when drums are changed.
Patent GB-1028292-A (GB)
Title: Improvements relating to overhead cranes
Inventor: COWAN WILLIAM GRAHAM
IPC: B66C7/00
Filed: 1962-07-12
Abstract: 1,028,292. Overhead cranes. J. H. CARRUTHERS & CO. Ltd. July 4, 1963 [July 12, 1962], No. 26790/62. Heading B8B. An overhead crane has a trolley 2 mounting hoisting gear 3 offset from a beam 1 and traversed along it by an electric motor 25. The trolley 2 comprises frame members 5-7 and is mounted to run on the box beam 1 by means of resiliently tyred wheels 12 formed as a series of at least three longitudinally spaced relative to the beam and running on a track 14 thereon. Similar resilient wheels 18 and convex reaction wheels 23 mounted on vertical axes run on tracks 22, 24 to prevent tipping of the frame 5. The beam 1 is strengthened by exterior webs 4. The wheels 12, 18 are centrally grooved to cooperate with ribs on their respective tracks.
Patent GB-294804-A (GB)
Title: Improvements in the production of a reversible paste from rubber latex
IPC: C08C1/00
Filed: 1927-10-10
Abstract: 294,804. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Oct. 10, 1927. Latex, treating.-A viscous paste which can be readily re-dispersed by means of aqueous ammonia &c. is formed by quickly mixing with latex an amount of acid sufficient to produce a pH figure less than 2 and, after (say) 24 hours, filtering off the serum. Fillers, protective colloids, sulphur &c. may be added before or after the acid.
Patent GB-1428371-A (GB)
Title: Sheets
IPC: B29C39/26
Filed: 1972-06-08
Abstract: 1428371 Casting sheets IMPERIAL CHEMICAL INDUSTRIES Ltd 29 May 1973 [8 June 1972] 26802/72 Heading B5A [Also in Division C3] A method for simultaneously casting a plurality of sheets or blocks, e.g. doors, of cellular polymeric material comprises emulsifying in a continuous oily phase having a polymerizable constituent, sufficient of an aqueous disperse phase to enable the temperature during polymerization of the constituent to be maintained below the boiling point of the lowest boiling fraction of the emulsion, pouring the emulsion into a mould sub-divided by at least one partition before, during or after receiving the emulsion and effecting polymerization of the constituent. The latter may be methyl methacrylate monomer. The emulsifier may be a propoxylated bisphenol A fumarate (1:1) polyester or an ethyl cellulose which is soluble in the oily phase. The latter may comprise at least 80% by weight of methyl methacrylate and the emulsion may contain at least 70% by weight of water. The oily phase may also comprise triethanolamine, benzoyl peroxide, sodium hydroxide, 2-4-dichlorobenzoyl peroxide and/or 2-ethyl hexyl acrylate. Dimethyl-p-toluidine may also be added to the emulsion after formation of the latter by a poppy head dispersator. The mould may be lagged or unlagged, prewarmed to 45‹ C. or not and may be provided with vertical guiding channels for the partitions. The sheets may include a pair of thinner sacrificial end sheets to prevent bowing during casting. The sheets may be cast at temperatures from 20-55‹ C., the heat of polymerization being taken into account. The sheets may be placed in a hot air oven for a day below 100‹ C. to drive off the water and then left in the oven for 8-10 days at 110-115‹ C.
Patent GB-985918-A (GB)
Title: Process and apparatus for treating molten metals and process for cleaning and degassing molten aluminum and aluminum alloys
IPC: C21C7/10
Filed: 1961-07-25
Abstract: <PICT:0985918/C6-C7/1> Aluminium and its alloys are treated with a mixture of nitrogen and chlorine introduced below the surface of the molten metal to remove occluded gases and bring solid inclusions to the surface. As shown, a mixture of 1-30% chlorine and 99-30% nitrogen is fed into the molten metal through a tube 11 which passes through a cap 14.  The atmosphere above the metal and within the cap may be flushed by the same gas mixture through a pipe 15, the waste gas escaping through a hole 19. It is stated that little magnesium is removed from aluminium alloys containing magnesium.
Patent GB-912877-A (GB)
Title: Aquatic sports equipment
IPC: B63B35/81
Filed: 1961-07-25
Abstract: 912,877. Aquatic roundabouts. SAIKO, A. July 25, 1961 [July 29, 1960], No. 26924/61. Class 132 (1). [Also in Group XXXIII] A towing device for purposes of propulsion in sporting activities on water comprises an endless towing rope, guided by guide pulleys below water along a horizontal polygonal track, and driven by means of a motor, and floats on the surface of the water each connected by a rope to the towing rope to serve as a traction means for the object to be towed on the surface of the water. Pulleys 3 which guide the endless towing rope 1 are mounted each on a spindle 4 in a frame 5 mounting a number of cylindrical, air, containers 6. Cables 7 connected to weights 9 on the water bed, anchor the frame. A weighted tensioning rope 10 connects the frame to the water bed or bank. The pulley nearest the driving station 15 is coupled to a drive pulley 13 around which the driving rope passes. The driving station may be situated on the bank, or may float on or under the water. A rope 20 extends from a spring-winding means 19 on each float 17 which is connected by a rope 18 to the towing rope. The skier starts from a starting ramp, grasping a grip 22 on the end of the rope 20, the rope partially unwinds to reduce the initial rate of tow. When the skier releases the grip the rope rewinds automatically.
Patent GB-1056058-A (GB)
Title: A frame element for a watch movement
IPC: G04B29/02
Filed: 1965-06-25
Abstract: 1,056,058. Clocks and watches. FABRIQUE D'HORLOGERIE CHS. TISSOT ET FILS S.A. June 25, 1965 [Aug.6, 1964], No.26977/65. Heading G3T. [Also in Divisions E2 and F2] A watch movement frame comprises a metallic plate 1 with openings 2, 3, Fig. 1 (not shown) in positions corresponding to arbors of the watch train, and openings 4 in positions corresponding to pillars for securing a second frame. Material 5 such as nylon or soft metal moulded in the form of a layer to one face of the plate extends through these openings and projects on the other side to form bearing bushes 7, 8 and pillars 10 respectively. The bushes provide both journal bearing and end bearing surfaces. The pillars 10 are moulded into the elongated holes 4. To facilitate moulding by the insertion of core pieces, tapering crescentshaped grooves 14, 15 extend from the base of the plate to a position where shoulders 17, 18, are formed against which the second frame is located. This frame is retained by further shoulders 20, 21 on the pillars. A slot 24 in the pillar allows the second frame to be sprung into position.
Patent GB-306074-A (GB)
Title: Improvements in or relating to control apparatus for aircraft
IPC: B64C13/00
Filed: 1928-09-20
Abstract: 306,074. Dornier-Metallbauten Ges., (Assignees of Presser, A.). Feb. 15, 1928, [Convention date]. Steering, balancing, and regulating albitude.- Auxiliary surfaces, which are capable of adjustment during flight relatively to the rudder or elevator, are provided to balance any disturbing force on the steering of an aeroplane, e.g. that due to unsymmetrical loading or by failure of an engine in flight. Fig. 1 shows an auxiliary surface or plane 7 pivoted at 5 to a rod 19 which can be adjusted during flight, e.g. by cams acting on its lower end in an upright carried by the tail plane 1, and connected by a rod 3 to an elevator plane 2 pivoted at the rear of the tail plane 1. This arrangement may be set for a " tail-heavy " and a " nose-heavy " aeroplane.
Patent GB-1253603-A (GB)
Title: High solids coating composition
IPC: D21H23/00
Filed: 1969-05-28
Abstract: 1,253,603. Coated paper. SCOTT PAPER CO. 28 May, 1969 [29 May, 1968], No. 27034/ 69. Heading B2E. [Also in Divisions C3, C4 and C5] Paper is coated with an aqueous composition having a solids content of 70-82% by wt. and comprising a binder in an amount 7-30 p.b.w. per 100 p.b.w. total pigment, and a pigment, (i) 25-90% by wt. of which is a coarse pigment which has an "aspect ratio" not greater than 2:1 and at least 60% by wt. of which has an equivalent spherical diameter 72Á, and (ii) 75-10% by wt. of which is a fine pigment at least 60% by wt. of which has an equivalent spherical diameter <1Á. "Aspect ratio" is defined as ratio of greater to lesser dimension. In examples the binder is a styrene-butadiene latex, alone or with starch or casein, and a sodium polyacrylate or pyrophosphate dispersant is used; conventional coating methods are used, and the compositions are applied over a clay/starch base coating.
Patent GB-1268864-A (GB)
Title: Improvements in metallic sieves
Inventor: SAINT-ANDRE ROBERT EUGENE
IPC: B01D39/10
Filed: 1969-05-28
Abstract: 1,268,864. Coated metal sieve. SOFRANCE S.A. 28 May, 1969 [30 May, 1968], No. 27043/69. Headings B2E and B2H. A sieve comprises a metal core having filtration orifices provided on its entire surface with a uniform coating of polytetrafluoroethylene which reduces the size of the orifices without blocking them, the coating facilitating cleaning of the sieve and hindering the adherence of impurities. The sieve may be electrically formed or may be a gauze woven of metal wire and may be chemically or electrochemically cleansed prior to coating. A dispersion of the coating may be applied to the sieve by an electrostatic process by electrically charging the sieve and dispersion particles to potentials of opposite sign and spraying at high pressure to produce fine droplets. Alternatively, coating is effected by dipping or conventional spraying using an excess of coating material which is subsequently removed by rapid rotation of the sieve or by blowing a fluid jet through the sieve.
Patent GB-360114-A (GB)
Title: Improvements in or relating to rolls for use in feeding or folding paper in folding machines
IPC: B65H45/14
Filed: 1930-09-10
Abstract: 360,114. Rollers. CAMCO (MACHINERY), Ltd., 63, Farringdon Street, London. Sept. 10, 1930, No. 27047. Convention date, Nov. 7, 1929. [Class 42 (ii).] A roller for use in feeding or folding sheets of paper in a folding machine has a surface layer of felted fabric mounted on an unyielding core 20 with or without the interposition of an intermediate layer of fibrous material such as paper, in the latter case and preferably in both cases being applied in the form of a strip wound helically on the core. The fabric may be formed into a tubular covering and slid on to the core 20 over an interposed layer or may, as shown, be in the form of a strip or strips 22 and wound helically on the core, and cemented thereto. A strip or strips 21 of heavy paper may first be wound on the core, the fabric strip being wound thereover in the reverse direction, the layers being attached by means of a coating of glue. The roller is finished off by grinding and has hardened steel end caps 23 which bear against similar caps on a coacting roll.
Patent GB-411012-A (GB)
Title: Improvements relating to train operated electric contact devices for railways and the like
IPC: B61L1/02
Filed: 1933-10-02
Abstract: 411,012. Train - operated electric switches. STEELE, W. W., 2, Kew Road, Richmond, Surrey, and SYKES INTERLOCKING SIGNAL CO., Ltd., W. R., 26, Voltaire Road, Clapham, London. Oct. 2, 1933, No. 27087. [Class 105.] A normally open train-operated electric con. tact device comprises a member set into independent periodic movement by kinetic energy briefly applied by the train reaching a selected point, the member being immediately free to return to its original condition, when the energy is dissipated, and effecting the closure of the contact only during the time that it is in motion to a predetermined extent. The electric switch device shown in the Figure is enclosed in a casing 1 mounted adjacent the rails and is actuated by rail deflection causing a lug 6, fixed on the rail between two chairs, to depress a lever 4 the long arm 8 of which swings a parallellogram linkage 10, 12, 14 to the left whereby a pendulum 19 freely suspended from the horizontal link 14 is set into oscillation and while the amplitude of motion is sufficient intermittently closes spring contacts 21, 22 fixed on the horizontal link 14.
Patent GB-857607-A (GB)
Title: Improvements relating to masks for electric lamps
IPC: F21S8/10
Filed: 1957-08-28
Abstract: 857,607. Vehicle lamp masks. MIDLAND GEAR CASE CO. Ltd., and SMITH, W. B. Nov. 25, 1958 [Aug. 28, 1957], No. 27104/57. Class 75(4). A mask 16 of tinted, thermoplastic, flexible material for masking a vehicle head lamp having an annular clearance 14 between the lamp body having a rear part sunk in a depression 5 in the bodywork 4 of the vehicle and an embellishing ring 13 surrounding the frontal part of the lamp behind the lens 7, comprises a spherical body and an annular flange 17 extending rearwards and terminating in a lip 21, the flange 17 being weakened at intervals, e.g. by cut outs 19 to form several segments which can be inserted into the clearance the lips 21 engaging behind the ring 13 to hold the mask in position.
Patent GB-449518-A (GB)
Title: Automatic tightening means for operating spindles and valve spindles of cocks, valves or the like
IPC: F16K41/18
Filed: 1934-09-22
Abstract: 449,518. Valves or cocks. HORNELL, P. G., Brevik, Lidingo, and HANSSON, N. S., 65, Odengatan, Stockholm, both in Sweden. Sept. 22, 1934, No. 27285. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 29, 1935]. [Class 135] The operating spindle for a valve or cock is formed in two or more parts, and a deformable elastic packing is provided between at least two of the parts 11<1>, 11<11> so that actuation of the spindle causes deformation of the packing to take up any wear therein. The packing may be of dished, spherical, disc or other suitable shape but as shown consists of a rubber ring 12 between the parts 11<1>, 11<11> which have an interfitting tongue and slot for guiding purposes. A weak spring 10 may be provided on the spindle 11<1> actuating oppositely to the closing spring 11 of the valve 7 to keep the ring 12 under pressure, and a collar 9 is formed on the spindle 11<11> to prevent moisture rising to the outside of the casing.