baber/WOPTO huggingface dataset:
Patent GB-920128-A (GB)
Title: The screening of neutrons and rays
IPC: C08K3/01
Filed: 1959-09-02
Abstract: 920,128. Radiation absorbing materials. ELEKTROSCHMELZWERK KEMPTEN G.m.b.H. Sept. 2, 1959 [Sept. 2, 1958], No. 30006/59. Class 39 (4). A neutron screening material comprises a mixture of a neutron absorbing filler having an atomic absorption cross-section for neutrons of at least 100 barns with an organic silicon compound. Suitable neutron absorbents are boron, cadmium, hafnium, mercury, and compounds thereof; reference is also made to the use of samerium, europium, gadolinium, and dysprosium. Gamma rays are screened if an element of high atomic weight is present. Other optional constituents are a cellulose derivative, a polymeric fluoro compound, and a polyolefine. The mixture may be formed into flexible plates or foils in which a woven textile material may be incorporated. In examples, flexible plates are formed by vulcanizing a mixture of dimethyl polysiloxane or dihydroxy-dimethyl polysiloxane, silicic acid or quartz, a cross-linking agent, and boron carbide or boron nitride. A lacquer is prepared from a silicone lacquer and cadmium yellow containing Cd 113.
Patent GB-519476-A (GB)
Title: Improvements in and relating to tobacco leaf delivery mechanism
IPC: A24B5/12
Filed: 1938-10-18
Abstract: 519,476. Delivering stemmed tobacco leaves. INTERNATIONAL CIGAR MACHINERY CO. Oct. 18, 1938, No. 30104. Convention date, Nov. 30, 1937. [Class 130] Stemmed tobacco leaves are forwarded tip foremost by belts 10, 11 and received between adjacent runs of belts 13, 14 which are carried upwardly from rollers 15, 16 to a driving roller 17 and then downwardly on guides 40, 41 which are reciprocated to enable the leaves to be laid progressively on a screen 66. To prevent slipping of the leaves, the inner run of the belt 13 is supported by a flanged plate 60 secured to the arms 40, 41 and to the inner run of the belt 14 by strips 62 on bars 63 extending between the arms 40, 41. The outer run of the belt 13 passes around rollers 19, 21, 22 and a tensioning pulley 23 back to the roller 15 while the outer run of the belt 14 passes around a tensioning pulley 24 back to the roller 16, these outer runs being supported by guides 94. The arms 40, 41 are reciprocated by arms 49, 51 connected by a rod 47 to a crankpin 45 carried by a gear wheel 44 meshing with a wheel 43 and by adjustment of the crank gear 43, 44 or the gear ratio the leaves may be in a single row on the screen or in a double row with the leaves of the rows in tip'-to-tip or butt-to-butt relation with their ends overlapping. The screens may be stationary or intermittently advanced to enable the leaves to be booked or the screens may be supported by an endless belt which is continuously advanced beneath the delivery mechanisms of stemming machines using different kinds of tobacco leaves so that blended layers of leaves are delivered on to the screens. 'Rotating brushes 87, 99 assist the removal of the leaves from the belts 11, 14. A rotating brush 12 which normally directs the stemmed leaves from the belts 10, 11 to the belts 13, 14 is swung away from the belts to prevent the delivery of unstemmed leaves to the belts 13, 14. The brush 12 is actuated by a lever 70 which is operated by electro-magnetic mechanism when an unstemmed leaf passes beneath a detecting device disposed in advance of the belts 10, 11.
Patent GB-414387-A (GB)
Title: Improvements in or relating to electrical insulators
IPC: H01B17/02
Filed: 1932-10-27
Abstract: 414,387. Insulators. STEATITE & PORCELAIN PRODUCTS, Ltd., Stourport, and HALTON, G. H., Mount Villa, Stourport, Worcestershire. Oct. 27, 1932, No. 30151. [Class 36.] To prevent radio interference from high tension insulators of the suspension, pin, or pedestal type, small air gaps between the porcelain body of the insulator and its metal fittings or electrodes in which corona may occur, are filled with an insulating material of greater permitivity than air and of sufficient dielectric strength to withstand the voltage across the gap. The exposed surface of the filling material forms a smooth continuation of the contour of the insulator. The filling material, which is introduced into the gaps in liquid or semi-liquid form and subsequently hardened by cooling or heating, may be a thermoplastic resinous or bituminous composition, or a thermo-hardening synthetic resin, and may include fibrous fillers. Fig. 1 shows a suspension insulator in which an insulating filling 4 is cast into an annular gap between the rim 1 of the cap 2 and the upper face 3 of the shed of the insulator. To prevent surface discharge from the rim of the cap, a shallow annular ridge 8 may be formed on the shed of the insulator to enclose the filling 4, or the rim 1 depend into a recess in the shed. To reduce stresses in the gap 5 surrounding the pin 6, either the gap may be filled with insulating material or a conducting coating 7 may be applied to the wall of the pin cavity. Fig. 3 shows a supporting insulator of the pin type comprising porcelain parts 9, 10 joined by a layer of conducting cement 12. To reduce the stress in the air space adjacent the edge of the layer 12, a recess 4 is formed in porcelain parts 9, 10 which is filled with insulating material so as to cover the edge of the layer 12. Specifications 383,298 and 394,798 are referred to.
Patent GB-677236-A (GB)
Title: Damped servo system
IPC: G05D3/12
Filed: 1948-11-22
Abstract: 677,236. Electric follow-up systems. BENDIX AVIATION CORPORATION. Nov. 22, 1948. [Jan. 2, 1948] No. 30271/48. Class 40 (i). In a positional follow-up system hunting of the servomotor is prevented by the provision of both voltage and current feed back injected in series with the error voltage to the servoamplifier input. As shown, angular displacement of the control member 11 operates through the Selsyn transmitter 13 and receiver 19 to produce an error signal in the rotor winding 21 which after amplification at 24 is fed to the variable phase 30 of the two-phase induction motor 12 driving the rotor 21 and a follow-up pointer 36. A portion of the voltage output of the amplifier output is fed back negatively to the input by a transformer 28 and in addition the voltage drop across a choke 41, proportional to the amplifier current output, is fed back directly in series with the transformer secondary 27.
Patent GB-393621-A (GB)
Title: Improvements in or relating to metal pylons for carrying overhead wires
IPC: E04H12/08
Filed: 1931-11-02
Abstract: 393,621. Posts. BURSTALL, A. F., Norton Hall, The Green, Norton-on-Tees, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Nov. 2, 1931, Nos. 30333/31, 3265/32, 30877/32 (divided application), and 30878/32 (divided application). [Class 20 (i).] A tapered metal pylon is made from rolled metal sections, or shaped metal sheets, or a combination of both, welded along their longitudinal meeting edges to form a hollow structure of closed straight-sided quadrangular section at any height, having two axes of symmetry, preferably at right-angles, about which the section moduli are unequal. Fig. 1 (Comp.) shows a pylon formed of plates 3 having abutting and flanged edges welded together ; Fig. 3 (Comp.) shows a pylon of rolled sections 1 and plate sections 3 welded along their longitudinal meeting edges. The pylon may be formed of angle bars and plates, or a metal blank bent to form as shown in Fig. 7 (Comp.), the meeting edges 5 being welded. The pylon may taper in one or both directions of height, or the sections 2, 3 may be stepped as shown in Figs. 9 (Comp.) and 10 (Comp.) to provide the taper. As shown in Figs. 3 (3265/32) and 5 (3265/32), the webs of the channel sections 1, 2 are split at their lower portions and the sections are opened out and joined by tapered metal plates 5, 6 to form a tapered pylon. Specification 15037/02, [Class 36, Electricity, Conducting &c.], is referred to.
Patent GB-534883-A (GB)
Title: Improvements relating to improving the resistance of metals to corrosion
IPC: C23C22/33
Filed: 1939-11-20
Abstract: 534,883. Coating metals. PYRENE CO., Ltd. Nov. 20, 1939, No. 30411. Convention date, Nov. 19, 1938. [Class 82 (ii)] A corrosion-resisting coating is formed on the surface of a metal article by applying by dipping spraying or brushing an aqueous solution of a phosphorus acid, preferably orthophosphoric acid, and chromic acid of such a composition that the solution has a visible etching action on the metal. The solution contains not more than 25 or 15 parts of chromic acid to one of orthophosporic acid. A wetting agent may be added to the solution.
Patent GB-1241712-A (GB)
Title: A control device for rolling mills
IPC: B21B37/64
Filed: 1969-06-16
Abstract: 1,241,712. Automatic control of rolling mills. HITACHI Ltd. June 16, 1969 [June 19, 1968], No.30461/69. Heading G3R. In a system for controlling the gap in a rolling mill in response to a combination of the target thickness ho of rolled material, the roll pressure and the mill spring constant M, the latter is computed at intervals from measurements of the gap, the pressure and the actual thickness. Measurements of the roll gap and pressure from devices 3 and 4 respectively are supplied to memory circuits 11, 12 via a gate 10 which is opened briefly by a differentiating circuit 18 which responds to the change over of a flip-flop 15. Similarly, a measurement of actual thickness from an X-ray gauge 6 is supplied to a memory 17 via a gate 16 controlled by a second differentiator 19 responsive to the flip-flop changing in the opposite sense. Change-over occurs when an integrator or pulse counter 9 supplied with voltage or pulses from a tachogenerator 8 has determined that the material between the rolls when the gate 10 opened has reached the X-ray gauge 6. Thus, all the measurements stored in the memory circuits relate to the same cross-section of material. From these measurements a computer 13 calculates M, the spring constant, which is thus updated at intervals corresponding to the transit time from the rolls to the gauge. The most recent value of M is stored in another memory 14 and is used by a roll gap control computer 7 in the calculation of the required gap to achieve thickness ho. Correction is made either continuously, with each new value of M, or at less frequent intervals.
Patent GB-1499624-A (GB)
Title: Liquid starch-urea ruminant feed and method of producing same
IPC: A23K50/15
Filed: 1976-07-22
Abstract: 1499624 NPN animal feeds KANSAS STATE UNIVERSITY RESEARCH FOUNDATION 22 July 1976 [4 Sept 1975] 30497/76 Heading A2B A liquid ruminant feed is made by preparing an aqueous slurry containing an ungelatinised starchy material and an NPN substance, and subjecting the slurry under pressure to direct steam heating under turbulent conditions, the slurry may contain 30- 90% water and the product 40-96% water. The ratio of starch source to NPN nitrogen is 4:0.45 to 1:1.80. The starchy material may be corn, sorghum, barley, oats, wheat, rice, millet, hay, silage, potato, yam, cassava, arrowroot, turnip, rutabaga, or a starchy food or beverage processing liquor. The NPN substance may be urea, uric acid, biuret, ethylene urea, propionamide, butyramide, formamide, acetamide, dicyanodiamide, isobutane diurea, creatinine, creatine, ammonia, or an ammonium salt e.g. phosphate, carbonate, bicarbonate, carbamate, citrate, formate, acetate, propionate, lactate, succinate, fumarate, malate, chloride, sulphate or diammonium phosphate. The starchy substance may be ground to a size of less than 500 microns. Apparatus for making the feed comprises a cooker into which the slurry is fed through line 22 and steam through line 26, into tubular cooking barrel 38. The steam flow is regulated by needle valve 58 and frustoconical collar 52 forms an annular throat 56 through which the slurry passes at an angle to the steam so that turbulent mixing takes place. Pressure of 1 - 200p.s.i.g. is maintained in the barrel by valve 28, and the temperature is 215 - 388F. The starch is 50-100% gelatinised and the reacted mixture may then be passed to an intermediate holding tank where it can be reduced to below 185F and mixed with a food source e.g. molasses, hemicellulose extract of wood, lignin sulphonates, food and beverage waste liquor of cheese whey; an anylose enzyme to adjust the final viscosity to 100 - 20,000cp; and an acid e.g. sulphuric, hydrochloric, phosphoric, or benzoic, or formic, acetic propionic, butyric or sorbic acid as a mould inhibitor.
Patent GB-884443-A (GB)
Title: Sealer composition for multiple glazed units
Inventor: KUNKLE GERALD ERASMUS
IPC: E06B3/66
Filed: 1960-09-05
Abstract: Sealing compositions comprise a vulcanized mixture of a polymer of a mono-olefin containing four carbon atoms and a copolymer of a monoolefin containing four carbon atoms and a conjugated diolefin containing four to six carbon atoms, said compositions being tacky and pressure-sensitive.  The mono olefin may be butene-1, butene-2 or isobutylene, and the diolefin may be butadiene, isoprene, dimethylbutadiene, pentadiene or piperylene. Vulcanization may be effected with para-dinitrosobenzene, paraquinone dioxime and red lead, or sulphur and sulphur-liberating compounds.  The compositions may also comprise carbon black, clay, wax and zinc oxide.  The compositions may be extruded on to paper backing strips to give glazing tapes, and may be used in the manufacture of multiple glazed units.
Patent GB-803036-A (GB)
Title: Improvements in electric incandescent lamp mount structure
IPC: H01K1/18
Filed: 1956-10-08
Abstract: 803,036. Electric incandescent lamps. GENERAL ELECTRIC CO. Oct. 8, 1956 [Oct. 14, 1955; Nov. 3, 1955], No. 30591/56. Class 39(2) An electric incandescent lamp is provided with a coiled coil filament 4 arranged along the longitudinal axis of the bulb 1 and connected to leading-in wires 5, 6 which are of different lengths and extend on opposite sides of the bulb axis, with their respective ends 9, 10 bent inwardly towards the axis, the parts of the leading- in wires adjacent to their joints with the ends of the filament being mechanically and insulatingly connected by a rigid bridge 12-14 and forming, with the filament, a mount structure or unit which is correctly located and not subject to distortion when subjected to vibration or shock. As shown in Fig. 1, the bridge comprises two lengths of wire 12 and 13 aligned and interconnected by an intermediate insulating member 14, preferably a glass bead or button, into which their ends are fused. Right-angled bends are provided in the wires 12, 13 to enable them to be offset in a plane at right angles to the leading-in wires 5, 6 when connected to the parts 9, 10 thereof. Preferably a further support is provided by a wire 15 located between the mid-point of the filament and the bead 14. A heat-deflecting disc 11 may be supported in known manner on the stem press 7 of the lamp. In a modification, Fig. 2, a supplementary brace wire 16 has one end welded to the longer leading-in wire 6 and the other end anchored loosely within a hollow glass arbor 17 projecting from the stem press 7. In a further modification, Fig. 3 (not shown), the supports for the insulating bridge comprise integral continuations of the leading-in wires 5, 6, the ends of the filament being gripped within loop portions 9<SP>1</SP>, 10<SP>1</SP> formed in the respective leading-in wires. This last arrangement may be effected in progressive stages in an automatic machine.
Patent GB-371314-A (GB)
Title: Electrical plant comprising a number of utensils
IPC: D06F75/24
Filed: 1930-10-13
Abstract: 371,314. Electric hand-irons. SICK, G., Lausanne, Switzerland. Oct. 13, 1930, No. 30599. Convention date, Oct. 15, 1929. Void (Published under Sect. 91 of the Acts]. [Class 138 (ii).] An iron A is fitted with a removable electric heating element C held in, place by a bolt D, a cover, or a spring-seated ball. The element C may be used with other domestic. devices.
Patent GB-814024-A (GB)
Title: Improvements relating to knob and shaft assemblies
Inventor: STRANGE JOHN
IPC: G05G1/12
Filed: 1956-10-08
Abstract: 814,024. Securing knobs to shafts. SIMMONDS AEROCESSORIES Ltd. Oct. 1, 195.7 [Oct. 8, 1956], No.. 30607/56. Class 80 (2). [Also in Group XXV], Means for securing a knob 1 to a shaft 3 comprises a one-piece metal clip 6 located in a recess 4 in the shaft and having aresilient detent 11 engaging a transverse hole 5 in the knob. The knob has an axial recess of D- section to accommodate the correspondinglyshaped end of the shaft 3. The clip 6 has one or more prongs 8 at one end forced into engagement with the end of the recess 4 by a curved portion 9 of the clip pressing against the other end of the recess. The detent 11 is formed at one end of a tongue formed in the clip and can be displaced from the hole 5 by passing a. suitable tool into the hole.
Patent GB-1097661-A (GB)
Title: Improvements in the production of tea
Inventor: HOPPER FREDERICK AISTON
IPC: A23F3/42
Filed: 1963-08-02
Abstract: After tea has been fired, there is added to the fired tea essential oil extracted from tea leaf.  The oil may be obtained by condensing the vapours evolved during the firing of the tea.
Patent GB-981783-A (GB)
Title: Improvements relating to cutting implements
Inventor: TURNER LEONARD WILLIAM JOHN
IPC: A01D34/86
Filed: 1962-08-10
Abstract: 981,783. Vegetation-cutters. A. L. TURNER. Nov. 11, 1963 [Aug. 10, 1962], No. 30691/62. Heading A1F. A tractor-mounted roadside-verge cutter, of the type wherein a cutting head 19 is carried by an arm 12 mounted on a tractor (Fig. 1, not shown) which travels along the road, is characterized in that the cutting head houses a shaft 37 carrying a plurality of knives 38 rotating about the shaft-axis, which is driven by a motor 39 disposed remote from the end of the head nearest to the roadside edge of the verge. The motor 39 is hydraulic and is supplied with fluid from a tank 10 on the tractor which also supplies fluid to three pivoted rams 22, 28, 31 connected respectively between two links 12, 17, between the link 12 and a standard 25 on the tractor, and between the link 17 and the head 19. The links 12, 17 and the standard 25 are attached to a frame 11 secured to the tractor chassis. The cutter-head can operate in any position between horizontal and vertical.
Patent GB-642435-A (GB)
Title: Improvements in or relating to conveying devices for conveying paper sheets and similar articles
IPC: B65H29/16
Filed: 1947-11-19
Abstract: 642,435. Endless-belt conveyers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Nov. 19, 1947, No. 30712. Convention date, Sept. 4, 1946. [Class 78 (i)] [Also in Groups XVI and XXXV] Paper sheets and similar articles are held on a rubber or plastic conveyer belt 1 by electrostatic means for feeding to devices such as a scanning device 10 for an electrical facsimile transmitting system, and, in order to increase the adhesion between the paper and the conveyer, means are provided to establish after the electrical charge has been produced an electrical connection between the side of the conveyer remote from the paper and the side of the paper, remote from the conveyer. The effect of this short-circuiting is said to enhance the adhesion of the sheet to the conveyer. The belt 1 is freed of dust by a brush 13 and sucker 14, and is provided on its inner side with separated strips of tin foil 20 engaged by a metal roller 21 connected to the positive side of a D.C. source. The negative side is connected to a metal band 22 passing over rollers 23 and engaging the sheets. The charged sheet passes between two connected metal conductors 24 which effect the short-circuiting. The belt 1 may be driven by the rollers 2, 3, or by feed rollers 6. The roller 3 may be earthed, and the belt finally carries the sheet through electric discharge devices comprising conductors (Fig. 1, not shown), connected to a source of A.C. voltage. In a modification the belt 1 is coated on the inside with tin foil. connected to the earthed side of a source of D.C., and the positive side is connected to a band similar to the band 22. In a further modification the sheets are charged by a frictional electrostatic device comprising a cylinder covered with cat-skin, felt or silk which is driven at a different speed from the belt, the sheet being pressed by an upper roller into contact with the felt &c. covered roller. The Specification as open to inspection under Sect. 91 described a similar method of charging the sheets 5 by means of a covered roller 7 and a pressing roller 8 which is mounted insulatedly. In this case no short-circuiting plates are used, and the electrical discharge is effected by means of metal rollers 3, 11 connected to the opposite poles of an alternating current voltage. This subject-matter does not appear in the Specification as accepted.
Patent GB-1506348-A (GB)
Title: Ignition systems
IPC: F02P11/06
Filed: 1976-07-23
Abstract: 1506348 Ignition systems ROBERT BOSCH GmbH 23 July 1976 [26 July 1975] 30719/76 Heading F1B In an ignition system for vehicle I.C. engines including a switching transistor 7 connected in series with the primary winding 5 of the ignition coil 6 across a D.C. source 1, a bench circuit including one or more diodes 23 and a resistor 24 is connected in parallel with the transistor 7 and is provided with a tapping 25 to facilitate measuring and/or monitoring of the engine performance e.g. of engine speed. The mechanical contact breaker 20 may be replaced by a transistor controlled mechanically or by an A.C. generator by way of one or more trigger circuits.
Patent GB-428074-A (GB)
Title: Improvements in electrical-storage batteries
IPC: H01M4/20
Filed: 1933-10-30
Abstract: 428,074. Batteries. DOYLE, J. D., and DOYLE, M. K., 42, Sandford Road, Dublin, CATON, E. L., Dunluce Esplanade, Bray, Co. Wicklow, and MALONE, J. J., 114, St. James' Street, Dublin, both in Irish Free State. Oct. 30, 1933, No. 30759/32. [Class 53] Storage battery electrodes pasted with lead oxides and sulphuric acid are allowed to dry and are then immersed in a solution of sodium hyposulphite until about 90 per cent of the lead sulphate present has been removed. The electrolyte is absorbed in wood pulp sheets which are placed between the electrodes which may be flat or tubular.
Patent GB-603621-A (GB)
Title: Improvements in or relating to valves or gates
IPC: F16K1/20
Filed: 1945-11-16
Abstract: 603,621. Manually-actuated valves. SMITH, E. C. BOWDEN-. Nov. 16, 1945, No. 30850. [Class 135] A hinged valve, of the type in which the valve flap 6 is provided with a web 9 and lugs 8 co-operating respectively with a projection x and a pair of horns 7 integral with the seating 5, is actuated by a compound lever mechanism, whereby the valve may be opened to full flow or closed instantly. The actuating mechanism consists of a double-arm lever 15, pivotally mounted on the casing, and having one arm connected to a bell.crank lever 18 carrying a socket 21 adapted to receive a weighted extension arm 22. The other arm of the lever 15 is connected to the flap 6 by a lost-motion link 10, which permits the valve to seat freely. Specification 376,367 is referred to.