baber/WOPTO huggingface dataset:
Patent GB-681245-A (GB)
Title: Improvements relating to cathode ray tube apparatus
IPC: H03K4/10
Filed: 1948-06-12
Abstract: 681,245. Sawtooth generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 12, 1948 [June 14, 1947], No. 15874/48. Class 40 (vi). In an electromagnetic scanning circuit comprising a damping diode, the current flow through the diode is modified to improve the linearity of the scan by connecting in series with the diode an impedance across which a voltage is developed independently of the state of conductivity of the diode. Fig. 15 shows an electromagnetic scanning circuit for a cathoderay tube in which it is required to produce a linear sawtooth current flow through the deflecting coils L<SP>1</SP> and in which the diode valve V<SP>2</SP> damps out undesired H.F. oscillations which would otherwise occur at the end of the flyback stroke. The linearity of the forward stroke is improved by controlling the flow of diode current by means of an impedance comprising the network R<SP>2</SP>, C<SP>2</SP>, L<SP>2</SP>, across which a voltage is applied via the transformer T<SP>2</SP> dependent on the current flow in the power output valve V<SP>1</SP>. The value of the resistor R<SP>2</SP> or of the capacitor or inductor C<SP>2</SP>, L<SP>2</SP> may be varied to control the amplitude or phase respectively of the voltage produced across the secondary of transformer T<SP>2</SP> relative to that of the voltage produced across the scanning coils. Fig. 16 shows a modification in which a capacitor CB is charged through the damping diode V<SP>2</SP> and the D.C. voltage produced across it is connected effectively in series with the battery supply EB to the anode of the power output valve V<SP>1</SP>, thus increasing the efficiency of the circuit. In a further modification, Fig. 17 (not shown), the transformer T2 of Fig. 15 is replaced by an auto-transformer. In a further modification, Fig. 19 (not shown), the power recovery capacitor is connected in the cathode circuit of the power output valve and also provides a cathode bias for this valve. Specifications 542,032, 566,835 and 632,365 are referred to.
Patent GB-217422-A (GB)
Title: Improvements in and relating to endless-track tractors
IPC: B62D55/108
Filed: 1923-06-19
Abstract: 217,422. Imray, O. Y., (Bear Tractor Corporation of America). June 19, 1923. Endless-track tractors.-The track-engaging rollers 18, Fig. 2, are connected by equalizing- bars 21 which are pivoted intermediate their ends to yielding means 31 carried by the tractor frame 10. The means 31 comprise springs adjustable at 33 and engaging a sliding block which carries pins 30 connected to the bars 21. One bar may carry at one end a link 34 connected to radius bars 35, 37 pivoted to brackets 36 secured to the frame 10. In a modification, Fig. 4, a radius bar 40 is connected to one end of an equalizing-bar and is pivoted to a bracket 41 forming the forward bearing of the mechanism 17<a> used for adjusting the idle.r sprocket 14<a>. In a further modification, Fig. 6, the central wheel 19<b> is carried bv a link 43 which is connected between the equalizing-bars.
Patent GB-1006713-A (GB)
Title: Electric arc furnaces
IPC: H05B7/12
Filed: 1962-04-26
Abstract: 1,006,713. Electric arc shaft furnaces. PECHINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIGUES. April 26, 1962 [April 28, 1961; March 27, 1962], No. 15959/62. Heading H5H. An electric arc shaft furnace, suitable for the carbothermal reduction of alumina, includes about the or each electrode a structure having an electrically insulating upper portion which surrounds or contacts the electrode in a vapourtight manner in the upper portion of the shaft, and a lower portion extending outwards around and spaced from the electrode. Charge 6, Fig. 2, descends to be fused between soleplate 9 and arc electrode 1, the insulating ring 2 permitting movement of the electrode but preventing the escape of vapour, and the graphite structure 3 preventing the conductive crust 7 from contacting the electrode. Water cooling 4 promotes the formation of a condensed deposit 11 which shields the upper portion from direct radiation, the formation of small local arcs preventing complete bridging of the annular gap by the deposit. In further embodiments, an annular chamber surrounding the electrode is formed in the central portion of the structure, with provision for the introduction of a cleaning gas, e.g. nitrogen, hydrogen, carbon monoxide, or steam (Fig. 3, not shown); the electrode is surrounded by a sheath of aluminous cement, which meets as it nears the arc (Fig. 4, not shown); and the electrode is surrounded by a slowly flowing composition consisting of the oxide included in the furnace charge, together with a binder, e.g. alumina, sodium aluminate, and water (Fig. 5, not shown). Specifications 865,861 and 893,345 are referred to.
Patent GB-1312072-A (GB)
Title: Shaving cutter
IPC: B23F5/20
Filed: 1970-04-03
Abstract: 1312072 Shaving gear ISUZU MOTORS Ltd 3 April 1970 [3 April 1969] 15998/70 Heading B3K In a method of shaving a gear, the rotating cutter 1, Figs. 2, 3, and gear 4, are arranged with their axes CC and DD respectively crossed, and the cutting takes place at the point of intersection P of the axes. If the cutter is rotated in the direction G with the cutting edge 211 at position P, the leading edge of the cutting teeth carries out the shaving operation. If however the cutter is rotated in the direction F cutting edge 211 is a trailing cutting edge. If now the cutter or the gear is moved along line CC, until cutting edge 311 occupies the position P, the direction of rotation of the cutter still determines when cutting edge 311 is leading or trailing, but in the opposite sense. The shaving cutter is formed by two parts 2, 3, each having a plurality of teeth. In a modification, a spacer (10), Fig. 8 (not shown), is provided between the two cutter parts (7), (8).
Patent GB-355794-A (GB)
Title: Improvements in or relating to the treatment of textile materials
IPC: D06M15/71
Filed: 1930-05-24
Abstract: 355,794. Drying filaments, yarns, &c. BRITISH CELANESE, Ltd., 22, Hanover Square, London, FULTON, S. M. and TYCE, G. C., of British Celanese, Spondon, near Derby. May 24, 1930, No. 16018. [Class 34 (i).] Filaments, yarns or the like, particularly cellulose acetate or other forms of artificial silk, to which a treating liquid, for example a size, has been applied are wound into hank form and are dried during winding, the drying agency being concentrated in the neighbourhood of the hank by a casing surrounding the hank. The winding-reel 21, which is preferably cylindrical and of perforated sheet metal, is enclosed in a casing 25 provided with heating pipes 31 and air is drawn through the casing and the reel by a suction fan 34, the yarns being drawn from bobbins 5 mounted on twisting spindles or from stationary packages and treated with liquid by a roller 15 rotating in contact with a roller 14 in a trough 13.
Patent GB-1510822-A (GB)
Title: Ceramic sheets
IPC: B28B11/04
Filed: 1975-04-18
Abstract: 1510822 Producing cured ceramic sheets G J ELDERBAUM 18 April 1975 16125/75 Heading B5A A sheet 10 of ceramic greenwave of selected thickness has strips 11 of greenwave arranged round the border outside the final limits of the sheet. When the sheet is fired to produce fusion of the particles in the sheet, the border is said to produce a tension effect in the sheet which reduces the rate of shrinkage so that, having cut off the border, the final sheet has less distortion and fewer surface flaws. The border may comprise several superimposed strips, or strips on either side of the sheet. The border may comprise a deposition of metal particles.
Patent GB-347919-A (GB)
IPC: E05B65/50
Filed: 1930-05-26
Abstract: 347,919. Hasp plates. NÍLLE, W., 33, Elberfelderstrasse, Velbert, Rhineland, Germany. May 26, 1930, No. 16148. Convention date, April 16. [Class 44.] A hasp plate a is pressed from heavy gauge material and formed with square edges b to simulate cast plates. The pivot pins e are formed by bent up portions integral with the plate a. Recesses c are formed in the plate a to take the lugs of a hook or eye d which is stamped from the same gauge material, the lugs being welded to the plate. Rivets may also be welded in the recesses and inserted in the lugs and countersunk riveted therein.
Patent GB-979277-A (GB)
Title: Improvements in preparation of the nitrides of aluminium,gallium or boron
IPC: C01B21/064
Filed: 1962-04-27
Abstract: Aluminium boron and gallium nitrides are prepared by heating the phosphides or arsenides of these metals or gallium antimonide in a stream of dry ammonia gas at 700-1200 DEG  C. and allowing to cool in ammonia.  The volatile phosphorus and arsenic are driven off during the heating.  The starting materials are crushed to a fine powder before heating and reference is made to a fluidized bed process wherein a quartz frit bed is used.  Layers of the respective nitrides may be produced by stopping the process at an intermediate stage.
Patent GB-1341097-A (GB)
Title: Washing and cleaning agents
IPC: C11D3/00
Filed: 1971-05-21
Abstract: 1341097 Washing powder DEUTSCHE GOLD - UND SILBER - SCHEIDEANSTALT 21 May 1971 [23 May 1970] 16189/71 Heading C5D A washing powder comprises (a) an anionic, amphoteric or nonionic surface active agent and (b) a polymer in which (i) at least 75% of the linkages in the main chain are between carbon atoms, (ii) a major proportion of the chain comprises units of formula wherein A is H, NH 4  or a valency of a mono- or polyvalent metal, R is H, or C 1-6  alkyl and R 1  is H, C 1-6  alkyl or halogen, (iii) there are not more than 2 hydroxyl groups per carboxyl group and (iv) the degree of polymerization is 3-5000. In the preferred polymers, A is Na, R is H or CH 3  and R 1  is H, CH 3  or Cl. Surface active agents specified include: saturated fatty acid soaps, tallow fatty alcohol sulphate, coconut fatty alcohol sulphate, tallow fatty alcohol ether sulphate, coconut fatty alcohol ether sulphate, oleyl alcohol ether sulphate, alkane sulphonate, alkylbenzene sulphonate, tallow fatty acid methyl ester sulphonate, terminal olefin sulphonates, non - terminal olefin sulphonates, stearic ethanolamide, polyoxyethylenated oleyl alcohol, and polyoxyethylenated polyoxypropylenated oleyl alcohol. The composition may also include a bleach, e.g. sodium perborate, soil antiredeposition agents, e.g. carboxymethyl cellulose, plasticizers, antimicrobial agents, enzymes, optical brighteners, dyes, perfumes, water, organic sequestering agents, e.g. NTA, EDTA and hydroxyethane diphosphonic acid, inorganic salts, e.g. sodium tripolyphosphate, sodium sulphate, sodium silicate, sodium carbonate, magnesium silicate, and borax and a non-surface active foam inhibitor.
Patent GB-750064-A (GB)
Title: Improved needle or roller bearing for mounting a connecting rod on a gudgeon pin
IPC: F16J1/20
Filed: 1954-06-01
Abstract: 750,064. Roller bearings. AKTIEBOLAGET GOTAVERKEN. June 1, 1954 [June 5, 1953], No. 16243/54. Class 12 (1). In a needle bearing for mounting a connecting-rod 4 on a tubular gudgeon pin 3, which latter is secured to a piston 1 by expansion members 6, the inner race 8 has a bore which is substantially frusto-conical at its ends. The members 6 consist of a material having a coefficient of expansion greater than that of the pin 3. Under working conditions the expansion of the members 6 causes contact between the pin 3 and ends of the race 8 without excessive pressure.
Patent GB-1107161-A (GB)
Title: Fluorocarbon polymer coating composition
IPC: C09D127/18
Filed: 1966-04-14
Abstract: A coating composition which is an aqueous dispersion comprising (a) 10 to 70% by weight, based on the total weight of the dispersion, of a finely divided fluorocarbon polymer and (b) 3 to 25% by weight, based on the weight of the polymer, of mineral fibrils, the fibrils having an average length of from 10 millimicrons to 5000 microns and being coated with a sufficient amount of non-ionic surfactant to disperse the fibrils in the polymer dispersion.  Preferred polymers are polytetrafluoroethylene and a copolymer of tetrafluoroethylene and hexafluoropropylene. Preferred mineral fibrils are of potassium titanate, titanium dioxide and fibrous boehmite.  Preferred surfactants are alkyl aryl polyether alcohols, e.g. isooctyl phenyl polyethoxy ethanol.ALSO:Metal articles are coated by (i) applying a layer of a coating composition which is an aqueous dispersion comprising (a) 10 to 70% by weight, based on the total weight of the dispersion, of a finely divided fluorocarbon polymer and (b) 3 to 25% by weight, based on the weight of the polymer, of mineral fibrils, the fibrils having an overal length of from 10 millimicrons to 5000 microns and being coated with a sufficient amount of non-ionic surfactant to disperse the fibrils in the polymer dispersion to a metal substrate and (ii) coalescing this layer to a continuous film by heating to a temperature of at least 700 DEG F.  Preferred polymers a polytetrafluoroethylene and a copolymer of tetrafluoroethylene and hexafluoropropylene.  Preferred mineral fibrils are of potassium titanate, titanium dioxide and fibrous bothonite.  Preferred surfactants are alkyl aryl polyether alcohols e.g. isooctyl phenyl polyethoxy ethanol.  In the Examples the substrates coated are aluminium panels.  The panels are primed by spraying with a coating composition.
Patent GB-988265-A (GB)
Title: Phenolic resin binder
IPC: C08L61/06
Filed: 1962-04-30
Abstract: A binder composition for discrete solid particles, e.g. for foundry sand cores or chip board, is an aqueous solution comprising (1) a water-soluble resin formed by partial condensation of 1.5-2.5 mols. of formaldehyde with 1 mol. phenol in presence of a basic catalyst, (2) a formaldehyde derivative of urea or thiourea to give 10-50% by weight of urea or thiourea based on the phenol-formaldehyde resin solids, and a ratio of urea or thiourea to formaldehyde not combined with phenol of from 1:1 to 1:5, and (3) an acid or ammonium salt as an accelerator. Cresol, xylenol or cresylic acid may replace the phenol.  The urea or thiourea may be added as such or as a formaldehyde derivative. Additional formaldehyde may also be added to bring the proportion not combined with phenol to the required amount. Suitable accelerators are acids such as hydrochloric, sulphuric, phosphoric maleic, toluenesulphonic, oxalic, or fumaric, or ammonium salts, e.g. the chloride, sulphate or phosphate.  When used for sand cores, a hydrocarbon, e.g. kerosene, may be added to the mix.
Patent GB-972727-A (GB)
Title: Improvements in or relating to glass panels which exhibit optical effects
IPC: F21V5/00
Filed: 1962-04-30
Abstract: <PICT:0972727/C1/1> <PICT:0972727/C1/2> <PICT:0972727/C1/3> A glass panel 1 which exhibits optical effects, and particularly for use as a cover panel for light sources, has a fire finish on both surfaces and projections consisting of bulges 2 formed by blowing directly out of the glass in the heated state, each bulge having in its protruding portion particularly at its apex 3 on one side, a reduced wall thickness to promote the diffusion of light.  As shown in Fig. 5, a mould frame 11, for receiving molten glass, is placed on a base-plate 8 having a plurality of grooves 9 communicating through ducts 10 with a source of compressed air.  A plate-like mould 12 having a grid structure is secured on the frame 11 and is preferably formed from flat iron bars 13 placed on edge. Compressed air blown through grooves 9 causes the molten glass to form the bulges 2 between the bars 13, the wall thickness being reduced at the apices 3 by selection of appropriate air pressure for the initial thickness of glass.  In a similar construction, Fig. 7, not shown, the frame 11 and mould 12 are enclosed in a chamber which is evacuated to assist formation of the bulges.  As shown in Fig. 8, the mould 12 is replaced by a moulding roller comprising a spindle 16 with threaded ends 17 on which guide discs 23 are engaged to hold between them moulding discs 19 separated by spacers 18 and end cutting discs 24 for trimming the longitudinal edges of the panel.  The spacers 18 have transverse recesses 20 into which moulding cross-bars 21 are fitted and which form a grid with the discs 19, into which the glass is bulged by air through grooves 9 and ducts 10.  The roller may be provided with at least one knife extending transversely between the cutting discs 24 to cut the glass into panels of equal lengths as the roller is passed through the frame 11.  In a modification of this embodiment, the roller is rotatably mounted in a stationary position and the base 8 and frame 11 are moved thereunder.  In a further modification, the movable roller may control valves supplying the compressed air to the grooves 9.  The glass used may be transparent or translucent and may be coloured.
Patent GB-1529943-A (GB)
Title: Electrical filters including coupled resonators
IPC: H03H9/64
Filed: 1975-12-10
Abstract: 1529943 Surface wave filters MULLARD Ltd 10 Dec 1975 [15 Jan 1975] 16478/78 Divided out of 1529941 Heading H3U In a surface wave filter comprising an input transducer 15 in a first resonator and an output transducer 16 in a second resonator coupled by means 14 to the first resonator, the transducers are so located with respect to the maxima and minima of the standing waves in the resonators that they do not couple with maximum efficiency to those standing waves. Reference is made to Specification 1,529,942.
Patent GB-612687-A (GB)
Title: Improvements in or relating to sustaining rotors for rotary wing aircraft
IPC: B64C27/39
Filed: 1946-05-30
Abstract: 612,687. Rotary-wing aircraft. BRISTOL AEROPLANE CO., Ltd., HAFNER, R., and WALKER, G. E. May 30, 1946, No. 16484. [ Class 4] In a sustaining rotor of the type in which three or more blades are spaced around the hub and each is attached thereto by a hingepin passing through a blade-attachment member so that each blade is capable of independent flapping movement about a single axis only, the bearing surface of each hinge extends beyond one end face only of a next adjacent hinge in succession around the hub. The invention is shown applied to the rotor of a helicopter with three blades 6, each of which is attached to the rotor hub 7 by a hinge, one portion 9 of which carries the drag pivot pin 10 and the other portion 8 engages with the flapping pivot pin 12. The arrangement is such that each bearing 8 is divided into two portions e, f of unequal lengths by a radial line b passing through the rotor axis and perpendicular to the pivot axis. Each line b is offset with respect to the axis d of the associated rotor blade, the longer portion e of each bearing extends beyond the end of the adjacent hinge pin. The bearing 8 is located between lugs 7a, 7b on the rotor hub, the pin 10 being inserted and withdrawn through a hole in the lug 7a.
Patent GB-1254483-A (GB)
Title: Improved animal identification tag and tool for applying the same
IPC: A01K11/00
Filed: 1969-03-28
Abstract: 1,254,483. Animal identification tag. Y-TEX CORP. 28 March, 1969 [27 May, 1968], No. 16511/69. Heading B6P. An animal identification tag, Fig. 3, of plastics material has a shank portion 24 with a head formed from resilient barbs 20, and a body portion B formed as a flat surface on which an identifying mark may be placed. A tool, Fig. 10, for applying the tag comprises a tube T having a cutting beak portion 40, a longitudinal slot on the underside of the tube, allowing the body portion to depend from the shank portion 24, and side notches (43, Fig. 12) and a slot 45 for allowing the barbs to protrude. The handle 39 is either integral with or fastened to the tube T.
Patent GB-379411-A (GB)
Title: Improved devices for use in the place of reels for wire or the like
IPC: B65H75/20
Filed: 1931-06-08
Abstract: 379,411. Reels. STRICKLAND, G. T., Gun & Shell Factory, Cossipur, Bengal, India. June 8, 1931, No. 16665. [Class 120 (iii).] A device for use as a reel for wire &c. comprises a number of U-shaped members, formed of stiff wire or small diameter rods, which are interlaced as shown, the limbs 1 of the said members forming the flanges and the middle portions 2 the barrel of the reel. The members are retained in this position by their own elasticity, although when they are formed of thin wire their limbs are preferably kinked or deformed at the points where they contact with coacting members. The reel may be strengthened by endplates 7 which have pressedup loops or hooks 9, 11 engaging the limbs 1 and central holes 8 to receive a removable rod or roller.
Patent GB-402354-A (GB)
Title: Improvements in or relating to tobacco pipes
IPC: A24F5/08
Filed: 1933-06-12
Abstract: 402,354. Tobacco pipes. KRETZNER, E., 8, Judengasse, Danzig. June 12, 1933, No. 16771. Convention date, June 20, 1932. [Class 130.] A porous plug or lower insert c forms the bottom of the bowl of a pipe, except for an annular passage h, between it and the shell a of the bowl, and is of step formation to provide a recess into which the skirt of an upper screwed insert b enters. Packing rings g complete the joint between the inserts. Smoke finds its way from the bowl through a central aperture z in the plug c to a recess e formed therein, the recess e being connected by radial passages with the annular passage h.
Patent GB-1017921-A (GB)
Title: Shaft seal
Inventor: STRANGE CYRIL GARDNER
IPC: F16J15/40
Filed: 1961-05-09
Abstract: 1,017,921. Shaft seals. ENGLISH ELECTRIC CO. Ltd. May 2, 1962 [May 9, 1961], No. 16792/61. Heading F2B. Sealing means for a rotatable shaft 11 where it extends through a housing 10 containing fluid under pressure comprises supplying sealing oil under pressure between the opposing faces of two rings 14 and 15 urged towards one another by the pressure of the fluid in the housing and connected, in fluid-tight manner to the housing and to the shaft respectively, at least one of the rings being cooled by circulating coolant therethrough. The ring 14 is connected to the housing by bellows 17 and urged toward the ring 15 by gas supplied to the interior of the bellows from the housing through an aperture 18. Pressurized sealing oil is supplied at a constant rate to recesses 22 in the ring 14 via passages 20 and orifices 21. A circumferential groove 23 interposed between the recesses 22 and the interior of the ring 14 has bleed orifices 25 leading to drain to maintain the pressure in the groove 23 less than that in the recesses 22 and thus limit leakage of sealing oil radially inwardly; most of the sealing oil flowing radially outwardly to an external drain. As an alternative, the orifices 25 may be omitted the pressure in the groove 23 then being automatically controlled by the clearances between the rings 14 and 15. Any leakage of sealing oil to the interior of the rings 14 and 15 is drained through a pressurized drain 26. The ring 14 is cooled by circulating coolant through a chamber 32 via inlet and outlet apertures 33 and 34. In a modification, the bleed orifices 25 are arranged outside the groove 23 in closed recesses between the recesses 22.