baber/WOPTO huggingface dataset:
Patent GB-1131213-A (GB)
Title: Control system for a reversing stand in a rolling mill
Inventor: AUGUSTIN GOTZ
IPC: B21B37/46
Filed: 1966-02-11
Abstract: 1,131,213. Automatic speed control. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Feb.11, 1966, No.6178/66. Heading G3R. [Also in Division H2] In a control system for a reversible rolling mill, a pulse transmitter is coupled to main drive motor 24 and is connected through gate 2 to counter 3 for measuring continuously the length of material passing through the rolls. The gate is opened and closed respectively when the main drive engages and disengages the rolled material, a signal from the counter being supplied to computer 6 to serve as a reference signal representing the rolled length for the next pass. A further signal from the counter is applied to unit 5 for comparison with a reference signal representing the rolled length during the preceding pass. The error signal is applied to digital-analog converter 7 whereby braking operation of the drive is initiated when the error signal falls below a predetermined value. The output of the converter 7 is delivered to amplifier 8 whose gain is modified in accordance with the value of the motor current corrected by factors dependent upon the idle-running acceleration current and the permissible retardation torque. A further correcting factor which may be introduced represents the permissible rate of retardation of a roller table which moves in synchronism with the main drive. Signals representing these factors are stored in unit 16, after being converted in analog-digital unit 14, and are selected by unit 15 to adjust the effective resistance of matrix 18 determining the back-coupling impedance and gain of the amplifier 8. The output of the amplifier is applied to function generator 9 having a parabolic characteristic and providing a signal which serves as a reference for the speed of the main drive. The acceleration of the drive is determined by regulator 19 which is replaced by the amplifier 10 when the latter produces a lower output signal for controlling the rate of retardation. In the computer 6, a signal, representing the length of the workpiece before a pass, is modified by factors determined by the intended reduction in thickness, the roll diameter and rolls, the corrected signal being fed to the comparator 5.
Patent GB-935532-A (GB)
Title: Improvements in or relating to air cushion vessels having sidewalls
Inventor: LATIMER-NEEDHAM CECIL HUGH
IPC: B60V1/16
Filed: 1960-06-10
Abstract: 935,532. Vehicles supported by gaseous cushions. WESTLAND AIRCRAFT Ltd. June 10, 1960, No. 6197/62. Divided out of 935,531. Drawings to Specification. Class 4. The subject-matter of this Specification is identical with that in Specification 935,531 but the claims are concerned with sub-division of the cushion-forming chamber into a plurality of separate compartments.
Patent GB-110116-A (GB)
Title: Improvements in or connected with Toy Building Blocks and the like.
Inventor: STRANDERS WALTER
IPC: A63H33/04
Filed: 1917-05-02
Abstract: 110,116. Incorporated Soldiers' & Sailors' Help Society, and Stranders, W. May 2, 1917. Building-blocks.-Cubical building-blocks a have on their faces designs which, when the blocks are built up, form representations of the various sides of houses and other constructions. Additional triangular blocks b to form the roofs and chimney-stacks d are provided for use with the blocks. The Figures show two houses built up from the same cubical blocks.
Patent GB-611014-A (GB)
Title: Improvements in or relating to electronic oscillators
IPC: H02P5/46
Filed: 1943-04-20
Abstract: 611,014. Valve generating circuits. MILSOM, F. R., FURZEHILL LABORATORIES, Ltd., and SMITH & SONS (MOTOR ACCESSORIES), Ltd., S. April 20, 1943, No. 6344. Class 40 (vi)] An oscillator for generating two alternating current voltages, of variable frequencies so that the difference in the frequency of the two A.C. voltages is dependent on a D.C. control voltage, comprises two oscillators each embodying a tuned circuit consisting of inductance and capacity wherein the inductance has an iron core whose permeability is varied by the passage of current through control windings. The oscillators may feed a servo-motor as described in Specification 611,009, [Group XXXV], consisting of two synchronous motors differentially coupled or combined to form a single 'motor, the rotor and stator of which have rotating fields. The D.C. control potential may be rectified A.C. and is preferably balanced so as to exert a differential control. The Figure shows cores 24, 27 associated with oscillator windings 25, 28 and having control windings 23, 26 in the anode circuits of valves 12, 16. The standing current is controlled by a potentiometer 29 and the current in the individual valves is equalised by the resistances 20A, 20B and the use of the common cathode resistor 20 enables operation to be effected by a single sided current with one input shortcircuited or by a balanced input and ensures that inequalities in balance are corrected. The system may be used for the automatic control of aircraft, for example a control signal may be generated by a rate of turn device as described in Specification 611,005. Specifications 611,011 and 611,021, [both in Group XX], also are referred to.
Patent GB-557329-A (GB)
Title: Fabric articles of wearing apparel
IPC: A41D1/06
Filed: 1942-05-12
Abstract: 557,329. Wearing-apparel. BRITISH CELANESE, Ltd. (Celanese Corporation of America). May 12, 1942, No. 6423. [Class 141] The turned-inportion at the bottom of a cuffless trouser leg is secured to the main fabric by bonding with the aid of heat and pressure to the opposite faces of an interlining of flexible material containing an artificial organic thermoplastic film-forming substance. The bonding can be facilitated by the presence of softening liquid or solvent for the thermoplastic material. The invention is also applicable to cuffs of coats and jackets and the bottoms of skirts.
Patent GB-665016-A (GB)
Title: Improvements in or relating to orifice plates of spray nozzles
Inventor: CLARK HENRY FREDERICK GEORGE
IPC: B05B1/04
Filed: 1949-03-09
Abstract: 665,016. Spray-producers. PEST CONTROL, Ltd. March 9, 1950 [March 9, 1949], No. 6462/49. Class 69 (iii). A nozzle has an orifice plate 1 having a groove 2 in its upstream face intersecting with either a second groove 4 (Fig. 1) in its downstream face at right angles to it or with a part-spherical or a conical depression 34 and 24 respectively (Figs. 9 and 7), the grooves and depressions being such that the orifice 5 formed by their intersection is elongated in the direction. of the upstream groove 3. The groove 3 is V-shaped in crosssection, the groove 4 being semi-circular, and they are made by rotary cutters using appropriately shaped blades. The plate 1 is stepped at 2 and has integral parts 12 to enable the orifice 5 to be rotated. The plate 1 is champed between a liquid-supply tube and a screwthreaded cap. In the embodiments shown in Figs. 7 and 9 the V-shaped upstream groove 23, 33 is formed as before, the conical or part spherical depressions 24, 34 being drilled in the plate 21 or 31 respectively, which is not stepped as in the first described embodiment.
Patent GB-1063301-A (GB)
Title: Improvements in and relating to electric circuits
Inventor: RICHARDS NORMAN DENNIS
IPC: G11C11/44
Filed: 1963-02-18
Abstract: 1,063,301. Selective signalling; superconductive matrix stores. MULLARD Ltd. Feb. 11, 1964 [Feb. 18, 1963], No. 6468/63. Headings G4C and G4H. [Also in Division H3] A matrix store uses superconductive storage elements of the kind described in Specification 998,792, gating conductors in series forming the rows a, b, c, d, and control conductors in series forming the columns A, B, C, D. The inputs to the rows consist of conductor pairs which are short-circuited by input cryotrons 35, 36, 37, 38, and likewise the row outputs are short-circuited by output cryotrons 40, 41, 42, 43. A single row is energized by a word pulse at terminal 24 by selectively energizing two of the control conductors 27, 28, 31, 32 of cryotrons 25, 26, 29, 30, 33, 34 of an address selector 22. At the same time a digit write current is applied to the input of a selected row, the adjacent short-circuit by a cryotron 35, 36, 37, 38 being removed by applying a write control pulse to the control conductor 39. The input current thus passes through the selected row of gate conductors and returns by way of superconducting cryotron 40, no voltage being available at the associated output as the read control conductor is unenergized. At the storage element whose control conductor is energized, the main part of the gating conductor is resistive and the input current passes through a superconductive shunt circuit. When the word and digit pulses terminate, a continuous circulating current is established in the main and shunt paths of the selected storage element which is then wholly superconductive. The stored digit is read out by energizing the read control conductor 44 so that the output cryotrons become resistive, and at the same time the selected column control conductor is energized. The circulating current in the selected element commences to decay as the main part of the gating conductor becomes resistive, and an effective pulse potential is obtained at the output since the input cryotrons are superconductive. In line or crossed-film cryotrons may be used. As described in the Specification to which reference is made, each storage element may have its main part made of tin, and the shunt circuit and control conductor formed of lead.
Patent GB-608905-A (GB)
Title: Composite structural material for floors, walls, tiles and the like
IPC: C08L95/00
Filed: 1946-03-01
Abstract: A structural material is made by heating vegetable fibrous material comprising cellulose fibres associated with lignin, such as straw, reeds, bean-straw, wood-wool or grasses, with an alkaline lye, which may be a solution of sodium carbonate, caustic soda or the corresponding potassium compounds, draining, washing and drying, mixing with molten pitch or bitumen and moulding to the desired shape.  Mineral fillers which may be hydrated lime, powdered limestone or china clay and pigments may be added.  In an example a composition contains by weight 25 parts of straw which has been treated by heating to 110 DEG C. with 18 per cent sodium carbonate solution, 30 parts of pitch, 25 parts of pigment such as red oxide of iron, and 20 parts of mineral filler.
Patent GB-1029274-A (GB)
Title: Improvements relating to electrical protective relays
Inventor: GRAY CLIFFORD BRUCE
IPC: H02H1/00
Filed: 1962-02-20
Abstract: 1,029,274. Protective arrangements. ENGLISH ELECTRIC CO. Ltd. Feb. 18, 1963 [Feb. 20, 1962], No. 6516/62. Heading H2K. A system for protecting a power line comprises a pilot link and a protective relay having an operating coil and a restraining coil at each end of the link, one coil of each relay being connected in series with an impedance in a shunt circuit terminating the respective end of the link and the other coil being connected in series with link. The impedance of each shunt circuit is equal in magnitude and phase angle to the characteristic impedance of the pilot link at the frequency of the current therein. The system is stated to improve the abilities of the relays to discriminate between internal and external faults and, in the ease of a fault fed from one end only, to render the relay setting at that end independent of the length of the pilot link. The system may be of the circulating-current or balanced-voltage types.
Patent GB-402740-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D13/08
Filed: 1932-03-04
Abstract: 402,740. Friction clutches. PALMGREN, N. A., 22, Viktoriagatan, Gothenburg, Sweden. March 4, 1932, No. 6598. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 10, 1932]. [Class 80 (ii).] A clutch coil 3 is secured at one end by a pin 6 to the driven or driving shaft 5 and at the other by a pin 8 to a sleeve 7 with helical projections 14 engaging similar parts 13 on the - clutch collar 10 splined on the shaft 5. Axial movement of the collar 10 contracts or expands the coil into engagement with a drum, such as 2, on the other shaft 1, the helical surfaces being so inclined as to prevent automatic movement of the sleeve 7. The coil may be fixed to the shaft along the greater part of its own length or at points spaced from its ends. Further, equal axial lengths of the coil may surround the two shafts, or the coil may surround one shaft only.
Patent GB-904323-A (GB)
Title: Horticultural syringes, air pumps and the like
Inventor: BAILEY ANDREW WILLIAM
IPC: F04B33/00
Filed: 1960-02-25
Abstract: 904,323. Reciprocating pumps; inflating pumps. APEX SPRAYERS Ltd. Feb. 2, 1961 [Feb. 25, 1960], No. 6610/60. Classes 8(1) and 102(1). [Also in Group XXVI] A piston for a horticultural syringe, air pump or the like comprises an annular disc a and a flexible sealing ring g, the disc a being of smaller external diameter than the bore of a barrel b and being secured to a rod c by T- shaped member f having a conical neck e upon which the sealing ring g is freely supported.
Patent GB-417592-A (GB)
Title: Woodworkers adjustable measuring and marking-off dovetail gauge
Filed: 1933-03-06
Abstract: 417,592. Marking-out dovetail joints. REED, A. A., 86, Lobley Hill Road, Bensham, Gateshead, Co. Durham. March 6, 1933, No. 6681. [Class 97 (iii).] A gauge for marking - out dovetail joints comprises a tapered plate A adapted to slide in a direction parallel to one edge on a bed piece B. The latter comprises a piece of angle bar having a face perpendicular to the plate A and graduated on the upper edge and a face parallel to the plate A and provided with screws F F which project through a slot E E in the plate A and have clamping nuts. A line D is marked in the centre of plate A and a series of sight apertures C are provided.
Patent GB-197117-A (GB)
Title: Improvements in apparatus for ploughing or forming furrows, or trenches
IPC: A01B13/00
Filed: 1922-03-08
Abstract: 197,117. Dijk, H. N. van, and McLaren, H. March 8, 1922. Multiple-tool and disc-tool implements; tools; lilting parts.-An implement for forming trenches or furrows comprises two double-mould-board ploughs working at different depths, the mouldboards of the second plough projecting higher than those of the first and having attached to them plates having their upper parts shaped to correspond with the mould-boards at the front end and turned towards one another at the rear end. The first plough 1 partially cuts the trench and the second plough 2 completes it, the soil being thrown out at both sides by both ploughs. The lower parts 6 of the plates 5 attached to the rear mouldboards 4 project into the trench parallel with the sides. Disc coulters 10 are adjustably mounted in front of the plough 1, and knife coulters 12 are adjustably fastened to it to slice the soil in front of the plough 2. The central coulter 12 is wedged against the plate 11 and the two outer bent coulters 12 are secured by a bolt and stays and adjustable distance pieces. The front skife plate 11 is adjustably connected to the frame 3 by bolts 13 passing through slots in the plate 11 and through holes in flange plates 14 fastened to the frame. The plate 11 is adjustably suspended from two bridge pieces 18 by screws 16 and a connecting-pieces 11<a>, and is kept vertical by adjustable screws bearing against it. The rear skife plate 22 is adjustable about a pin or bolt 23. A slide piece 26 is adjustably fixed on the plate 22. The two wheels 34, 35 act as furrow wheels alternately, and two sets of scarifying tines 27, 28 are arranged to come into action alternately to work behind the furrow wheel. They are provided with slide pieces 26<a>, 26<b> and are raised and lowered by chains or ropes 29 fastened to arms 30 on the crank shafts carrying the wheel axles. Specifications 195,571 and 197,116 are referred to.
Patent GB-1022083-A (GB)
Title: Process for production of non-flammable cellulose materials
Inventor: ROGOVIN ZAKHAR ALEXANDROVICH
IPC: D06M14/04
Filed: 1964-02-19
Abstract: A graft polymer derived from cellulose and 2-methyl-5-vinyl pyridine is modified by treatment with a 0.5-1% solution of phosphoric acid at 20-60 DEG  C.  The cellulose may be first reacted with the sulphuric ester of 4-hydroxyethylsulphonyl-2-amino-anisole and the product diazotized and reacted with 2-methyl-5-vinyl pyridine in the presence of acetic acid and ferrous sulphate.  The cellulose may be in the form of fabric, yarn or paper.ALSO:A fire-proof material is produced by treating a graft polymer derived from cellulose and 2-methyl-5-vinyl pyridine with a 0.5-1% solution of phosphoric acid at 20-60 DEG C.  The cellulose may be first reacted with the sulphuric ester of 4-hydroxyethylsulphonyl-2-amino-anisole and the product diazotised and reacted with 2-methyl-5-vinyl pyridine in the presence of acetic acid and ferrous sulphate.  The cellulose may be in the form of fabric, yarn or paper.
Patent GB-557557-A (GB)
Title: Improvements in or relating to the manufacture of resinous compositions
IPC: C08L61/34
Filed: 1942-05-20
Abstract: 557,557. Resinous compositions. BRITISH INDUSTRIAL PLASTICS, Ltd. May 20, 1942, No. 6883. Convention date, Dec. 3, 1941. [Class 2 (iii)] A resinous composition comprises a blend of a melamine-formaldehyde resin and a phenolformaldehyde resin, produced by compounding together in the absence of solvent the component resins, each of which has been separately prepared in the solid state, the melamineformaldehyde resin being from 50 per cent. to 95 per cent. by weight of the total resin constant. The component resins are preferably separately prepared as fine ground powders, and the compounding may be effected on hot rolls. Other specified optional ingredients of the composition are : heat-treated asbestos, zinc stearate, wood meal, wood flour, cotton flock, alpha cellulose, mica, glass fibres and other fibrous fillers. The blended resinous compositions may be used in the preparation of moulded articles, or they may be dissolved or suspended in liquid media to form coating compositions. Examples are given of the preparation of melamine-formaldehyde resins, of various phenol-formaldehyde resins, and of blends thereof.
Patent GB-743723-A (GB)
Title: Improvements relating to the protection of electrical measuring apparatus
Inventor: DONNAY JACQUES RENE
IPC: G01R1/36
Filed: 1953-03-13
Abstract: 743,723. Measuring-instruments. RADIOINDUSTRIE. March 13, 1953, No. 7000/53. Class 37. A protection arrangement for an electrical measuring-instrument comprises a delay network in series with the instrument, and a gas discharge tube controlling the energization of a relay for applying a short-circuit across the instrument, connected to an energizing source through a change-over switch. In an arrangement for testing the beam current of a cathoderay tube, the grid 17 of a gas discharge tube 14 is connected to the cathode of the tube under test via a push-button switch 26, so that a surge arising from a fault fires the tube 14 and energizes relay 13 to short-circuit the meter 1. The delay network, comprising resistor 2 and condenser 9, delays the current build-up through the meter. Change-over switch 23 is spring-loaded to move quickly between its contacts so that the tube 14 is extinguished if the surge has ceased but the relay 13 is still held. An auxiliary battery for testing the protection circuit may be applied to the firing grid 17 by the actuation of a push-button switch 26.
Patent GB-439554-A (GB)
Title: Improvements in protective arrangements for grid-controlled rectifiers
IPC: H02H7/127
Filed: 1934-03-06
Abstract: 439,554. Converting. AKT.-GES. BROWN, BOVERI, & CIE, Baden, Switzerland. March 6, 1934, No. 7081. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 10, 1934]. [Class 38 (ii)] A grid - controlled rectifier 1 is protected against back ignition or short circuit by means of a relay 6 which removes a positive bias and applies a negative bias to the grids. This relay is energized from a transformer 10 in the D.C. lead. A condenser 8 is connected across the D.C. circuit at a point intermediate the choke 9 and the transformer 10.
Patent GB-217310-A (GB)
Title: Improvements in or relating to rollers for sugar cane crushing and shredding machinery
IPC: C13B10/06
Filed: 1923-03-12
Abstract: 217,310. Maxwell, F. March 12, 1923. Rollers.-Relates to toothed rollers for crushing and shredding sugar-cane of the type in which the teeth are secured in longitudinal grooves in the roller by keys or the like or by pouring molten metal into the grooves. According to the invention, the teeth are formed on bars or segments which rest on the periphery of the roller and cover the whole or nearly the whole of the periphery. The bars c, Figs. 1 and 2, on which the teeth d are formed have projections c<1> which lie in the grooves b, and are secured against longitudinal movement by plates or rings f secured to the ends of the roller by screws g or by other suitable means. In a modification, Fig. 3, a key c<2> is disposed in the groove b in the roller and in a groove c<3> in the bar c on which the teeth are formed. When the teeth become worn, the bars can be removed and replaced by new bars. Instead of securing the bars by keys or white metal, the bars may be made a suitable fit in the grooves and be pressed or driven in.
Patent GB-1023918-A (GB)
Title: Tobacco smoke filter
IPC: A24D3/12
Filed: 1965-02-19
Abstract: 1,023,918. Tobacco smoke filters. HAVEG INDUSTRIES Inc. Feb. 19, 1965 [March 25, 1964], No. 7169/65. Heading A2C. A tobacco smoke filter comprises activated carbon fibres in the form of cloth 14. The filter may be located between a conventional filter 16 and the tobacco portion of a cigarette 10. The carbon cloth may be prepared as described in U.S.A. Specification 3,011,981 or 3,053,675 and may be activated by heating to at least 800‹F. in a gaseous atmosphere containing an inert gas and a small amount, e.g. 4%, of oxygen. The cloth may have incorporated therein absorbent materials such as silica gel and ion exchange resins. The carbon cloth preferably has at least 600 square metres of surface per gramme and pore sizes of at least 20 A.
Patent GB-525989-A (GB)
Title: Improvements relating to adjustable seats
IPC: B60N2/16
Filed: 1939-03-04
Abstract: 525,989. Adjustable seats. COX, R. W. March 4, 939, No. 7191. [Class 52 (ii)] Relates to an adjustable seat frame particularly for vehicles, of the kind wherein the seat frame a is pivotally supported by the upper ends of angularly adjustable front and rear links b, d adapted to permit horizontal adjustment of the frame as a whole and vertical adjustment of the rear part of the frame. According to the invention the frame and the front supporting link or links b are locked by a connecting link or links f. The link f has notches g any one of which may be engaged with a projection h on the link b. A spring p assists movement of the frame in one direction. The horizontal and vertical movements of the frame may be effected simultaneously as in the construction shown in Fig. 1, or independently as shown in Fig. 2 wherein the rear link is provided with a roller n movable on a guide o by means of a telescopic screw-mechanism k.