baber/WOPTO huggingface dataset:
Patent GB-1421680-A (GB)
Title: Drinking glasses
IPC: B24B5/14
Filed: 1974-04-03
Abstract: 1421680 Abrasive tools J G ARLINGTON 3 April 1974 14681/74 Heading B3D [Also in Division A4] A drinking glass comprises a conical well 3 extending from a bowl 2 into a stem 1, at least a portion 5 of the inner surface of the well extending up from and including the rounded base 4 thereof being ground. The bowl, well and stem are produced by known glass-blowing techniques. The grinding is performed with a metal rod rotating at 2000 r.p.m. and carborundum grinding paste, the rod having an end shaped to match the profile of the well.
Patent GB-686451-A (GB)
Title: Improvements in or relating to setting fabric of synthetic linear polyamide fibre yarns
IPC: D06M23/14
Filed: 1949-06-02
Abstract: Fabric comprising fibres of a synthetic linear polyamide is set by bringing it into contact with a hot chemically inert gaseous medium which remains in the gaseous state at atmospheric temperatures and pressures and is substantially devoid of free oxygen and water vapour, while the dimensions of the fabric are mechanically controlled.  This control is defined as the holding of the fabric extended by mechanical means under suitable tensions with regard to its length and width respectively, so as to allow it to shrink or even to stretch it, lengthwise and widthwise, to the extent desired, the tensions in any case being at least sufficient to cause the fabric to be taut at the end of the setting process and before cooling.  The fabric may be allowed during its setting to shrink 10 per cent of its width and 5 per cent of its length.  The fabric may be woven or knitted and may consist of polyhexamethylene adipamide or sebacamide, polypentamethylene sebacamide or polyethylene octadecandioic diamide.  The gaseous medium may be nitrogen, carbon dioxide or methane.  The temperature of the gaseous medium during the process may be between 160 DEG  and 25 DEG  C. below the melting point of the polyamide, which may, for example be 207-248 DEG  C.  In the example a warp-knitted polyhexamethylene adipamide cloth is passed continuously on a stenter through a chamber filled with nitrogen at 216 DEG  C., taking 30-120 seconds to traverse the chamber.  The fabric enters and leaves the chamber through slots provided with gas seals.  Data are furnished showing that the degree of yellowing, loss of strength and chemical degradation of the fabric are less when its setting is carried out in nitrogen or carbon dioxide than when carried out in air at the same temperatures and for the same heating periods.  Specification 524,953 is referred to.
Patent GB-1480709-A (GB)
Title: Film for stretch wrapping and method for producing same
IPC: C08K5/06
Filed: 1975-04-10
Abstract: 1480709 Stretch films ASAHI-DOW Ltd 10 April 1975 [19 April 1974 (2) 1 May 1974] 14812/75 Heading B5B [Also in Division C3] Films suitable for stretch wrapping having a kinetic coefficient of friction of 0À1 to 0À5, a tack strength of 0À4 to 1À5 kg./cm.<SP>2</SP>, a haze of less than 5%, a heat shrinkage of 30 to 80% and an elastic recovery of at least 60% may be prepared by melt extruding through an annular die a composition comprising (1) 99À7 to 98% of an ethylene/vinyl acetate copolymer having a melt index of 0À5 to 15 and containing 5 to 30 weight per cent of vinyl acetate and 0À3 to 2 weight per cent of an additive comprising (2) 10 to 40 weight per cent of a polyalkylene ether polyol having a boiling point of at least 200‹ C. and a viscosity of less than 1000 cps at 23‹ C. and (3) 60 to 90 weight per cent of a non-ionic surfactant selected from esters of C 6-14  saturated fatty acids and C 18-22  unsaturated fatty acids with polyhydric alcohols and derivatives of such esters, quenching and solidifying with a liquid to obtain a tubular film, reheating the film at 70‹ to 150‹ C. and stretching the film by inflation such that the area stretching ratio is 10 to 50 times and the transverse stretching ratio is 3 to 9 times. Exemplified additives are (2) polyethylene glycol and polypropylene glycol and (3) mono-oleates of glycerol and diglycerol, sorbitan monolaurate, and polyoxyethylene sorbitan mono-oleate.
Patent GB-349285-A (GB)
Title: Improvements in machines for making wire nails and the like
IPC: B21G3/20
Filed: 1930-05-14
Abstract: 349,285. Forging nails. VON DREUSCHE NAGEL-UND METALLWARENFABRIK AKT.-GES., F. W., D³sseldorf, Germany. May 14, 1930, No. 14830. Convention date, May 15, 1929. [Class 83 (iv).] In machines for upsetting the heads of wire nails &c. wherein a cam-controlled lever carries an adjustment screw engaging a hammer to which a punch is attached, a bridle piece connected to the screw and pivoted to the hammer imparts a positive movement to the hammer in both directions. A hammer 15 reciprocating in bearings 18, 19 and carrying a punch 17 is operated by a lever 10, through an adjustment screw 12 and bridle-piece 13, from cams 4, 5 and followers 8, 9. The wire 22 is fed forward, gripped between chuck jaws 21, upset, again fed forward, and cut to length, the sequence of operations being then repeated.
Patent GB-663115-A (GB)
Title: Improvements in or relating to harvesters
IPC: A01F12/30
Filed: 1949-06-02
Abstract: 663,115. Harvesters. SMART, L. E. S. June 2, 1949 [Nov. 8, 19481, No. 14856/49. Class 58 A harvester of the type wherein the seeds or grain and the straw are delivered to straw walkers to separate the seeds or grain and discharge the straw from the machine comprises a main straw walker and a secondary straw walker so mounted that it can be swung from an upright position at the rear of the harvester to an upright position at the side of the harvester and then lowered so that it extends longitudinally of said side and lies below and at right-angles to the line of delivery of said main straw walker. As shown, a walker 7 tiltably mounted to assume a horizontal or vertical position on a rod 12 is supported in a bracket 6 which can be swung through 180 degrees on a vertical rod 3 attached to the rear wall 1 of the harvester. In use it assumes the horizontal position along a side of the machine as shown, being then transverse to and below the usual straw walker 14, Fig. 1 (not shown), and out of use the bracket 6 is turned through 180 degrees to bring it along the rear wall and the walker 7 is turned vertically. Catches are provided for holding the walker in this position. An air blast may be provided under the walker to assist separation of the seeds or grain 'and straw.
Patent GB-186563-A (GB)
Title: Vehicle window balancing device
IPC: E05F11/38
Filed: 1921-08-29
Abstract: 186,563. Strachan, J. M. Aug. 29, 1921. Sashes balanced by springs.-In vehicle windows balanced bv spring-controlled levers acting on the lower edge thereof, the pressure of the levers is equalized by connecting them to the same spring by a single flexible cord 21 passing over pulleys 23, 24. In order to maintain a more constant pressure between the window and levers the ends of the cord may be arranged to wrap round segmental members secured to the ends of the levers.
Patent GB-221548-A (GB)
Title: Improved method of and means for producing disruptive forces in films of liquid or suspensions of substances in liquids confined between closely adjacent surfaces rotating relatively to one another at high speeds
IPC: B02C2/10
Filed: 1923-06-06
Abstract: 221,548. Burt, Boulton, & Haywood, Ltd., and China, F. J. E. June 6, 1923. Conical mills; hollow cylinder and internalroller.-In a method of minutely disintegrating substances suspended in liquid by means of disruptive forces in a film of the liquid while confined between closely adjacent coacting and concentric continuous surfaces rotating relatively to one another at high speeds, the relative movement is arranged to take place in such a way that the centrifugal force engendered thereby tends to aid the production of high velocity by holding the liquid or suspension against one or other of the surfaces as it rotates. The outer of the two coacting concentric surfaces is rotated, the inner surface being either stationary or capable of rotation in a direction reverse to that of the outer surface. The rotating surfaces may bei frusto-conical, Fig. 3, or cylindrical, Fig. 4. The rotor 1 is carried by a shaft 3, and the stationary member 2 has a duct 4 through which the liquid or suspension is passed. Fig. 5 shows a mill in which the inner member 2 is carried on a shaft 5 and rotates in close proximity but in opposite direction to the cuter member 1, the shaft 5 having a longitudinal duct 6 through which the material is passed. Specification 193,693 is referred to.
Patent GB-796243-A (GB)
Title: Engine starter coupling mechanism
IPC: F02C7/275
Filed: 1956-05-14
Abstract: 796,243. Engine starting mechanism. BENDIX AVIATION CORPORATION. May 14, 1956 [May 23, 1955], No. 14974/56. Class 7(5) In an engine starting mechanism including an engaging member for engaging an engine part, means operably connecting the member to a drive member and comprising a barrel member and a screw member helically engaged in the latter and means for causing the screw member to be advanced out of the barrel member upon rotation of the latter to cause engagement of the engaging member with the engine part, the means causing advancing comprises weighted tooth means pivoted to the barrel member and co-operating with complementary toothed means about the screw member to exert a drag upon the latter so that the latter is advanced axially upon rotation of the barrel member. Referring to the Figs., upon rotation of the shaft 1 the barrel and screw members 3, 14 are carried around with it. The heavy lugs 23 because of their inertia do not accelerate as rapidly as the barrel member and as a result the lugs turn on their pivots in the direction of the arrow (Fig. 2). This effects a dragging action upon the screw member whereupon the latter is caused to travel axially outward. As the latter so moves the starter jaw is advanced by it into engagement with the opposed engine jaw. When the engine has started the motive power to the drive shaft is cut off. As the engine rotates at high speed (which may be 18,000 r.p.m.) the lugs 23 tend to swing centrifugally in a counterclockwise direction (Fig. 2). As the faster rotating engine jaw releases itself from the starter jaw the reaction effected on the screw member by the centrifugally acting lugs causes the screw member to be returned to disengaged position in the barrel member. Projecting from the inner face of each lug is a pin 33. The periphery of a ring spring 34 limits against the underside of each pin This serves to effect a slight radially directed tension whereby chattering of the lugs is avoided. As shown, the barrel member 3 is connected to the shaft 1 by a slip clutch 4 of disc pack type. There are four lugs 23 equally spaced.
Patent GB-583943-A (GB)
Title: Improvements relating to gas condensers
IPC: F28B1/00
Filed: 1944-08-05
Abstract: 583,943. Gas condensers. BLAKELEY, W., and FIRTH, BLAKELEY, SONS & CO., Ltd. Aug. 5, 1944, No. 14992. [Class 55 (ii)] Rectangular gas condensers as described in Specifications 28434/97, [Class 55], and 191,644, [Class 55 (ii)], are fitted with superposed open-ended inclined air tubes B with their ends connected to the narrow ends of the columns. A continuous circulation of cooling air is thus set up. Internal perforated plates C are fitted to the wide sides of the columns alternating with the air tubes B and external baffles D are also provided inclined as shown or oppositely from the air tubes.
Patent GB-517369-A (GB)
Title: Method of and apparatus for abstracting fibrous material from fibre-bearing plants
IPC: D01B1/10
Filed: 1938-05-20
Abstract: 517,369. Endless-belt conveyers. GARDNER, F. P. May 20, 1938, No. 15125. [Class 78 (i)] [Also in Group IX] Feed conveyers for supplying stalks and other fibrous material to decorticating rollers comprise upper and' lower endless belts 347, 329, the upper stretch of belt 329' being resiliently supported at 354 and the supporting rollers 349, 363, 364 being provided with resilient suction cups 352. The shafts 371, 372 of the rollers 363, 364 are supported on rocking cradle bars 370 carried by a shaft 367. The feeding belts 347, 329 and the first-stage decorticating rotor 397 and kneading head 404 are driven in co-ordination with each other and with the conveyer belts 443, 444 which transfer the treated material to a second-stage decorticating device. The belts 443, 444 are provided with bridge members 447 supporting shoes 500, 501, each of which includes a strip of stiff resilient material adapted to grip the fibres XX as shown.
Patent GB-421813-A (GB)
Title: Manufacture of napthelene-1:4:5:8-tetracarboxylic acid
IPC: C07C63/40
Filed: 1933-05-25
Abstract: Naphthalene-1 : 4 : 5 : 8-tetracarboxylic acid is prepared by heating with concentrated sulphuric acid a di-, tri- or tetrachloro- or -bromopyrene compound which contains at least one halogen atom in 8- or 10-position and at least one further halogen atom of the same kind in 3- or 5-positions and oxidizing, with or without previous isolation the pyrenequinones thus obtained.  In examples (1) 3 : 5 : 8 : 10-tetrachlorpyrene is heated with concentrated sulphuric acid to obtain the sulphate of di-perinaphthindandione (3 : 4 : 5 : 8 : 9 : 10-hexahydro3 : 5 : 8 : 10-tetraoxopyrene) which is oxidized by means of sodium hypochlorite or nitric acid to yield naphthalene-1 : 4 : 5 : 8-tetracarboxylic acid; (2) 3 : 5 : 8 : 10-tetrabromopyrene is heated with sulphuric acid to yield dibromodiperinaphthindandione which may be oxidized by means of sodium hypochlorite, nitric acid or pyrolusite to naphthalene-1 : 4 : 5 : 8-tetracarboxylic acid.  3 : 5 : 8 : 10-Tetrachlorpyrene is prepared by chlorination of pyrene in trichlorobenzene or tetrachlorethane with chlorine, or in nitrobenzene with sulphuryl chloride, or by reacting tetranitropyrene with phosphorous pentachloride in trichlorobenzene.  3 : 5 : 8 : 10-Tetrabrompyrene is prepared by bromination of pyrene in nitrobenzene.  Di-acetoxypyrenequinone and its dibromo derivative are prepared by heating diperinaphthindandione or its dibromo derivative with acetic anhydride.  The Specification as open to inspection under Sect. 91 refers also to the use of fuming sulphuric acid and to the treatment of more highly halogenated pyrenes.  In examples, 3 : 5 : 8 : 10-tetrachlorpyrene, or hexachlorpyrene, or decachlorpyrene, is heated with fuming sulphuric acid to yield the di-peri-naphthindandione and then oxidized to yield naphthalene-1 : 4 : 5 : 8-carboxylic acids or chloro derivatives thereof. Hexachlorpyrene is obtained by chlorinating pyrene to yield 1 : 2 : 3 : 5 : 6 : 7 : 8 : 10-octochloro-1 : 2 : 6 : 7-tetrahydropyrene and splitting off 2 molecules of hydrochloric acid by means of an alcoholic alkali.  Decachlorpyrene is obtained by chlorinating hexachlorpyrene by means of chlorosulphonic acid in the presence of iodine and heating to split off hydrochloric acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-450611-A (GB)
Title: Foot actuation for electric switch
IPC: H01H21/26
Filed: 1935-05-25
Abstract: 450,611. Retractive switches. MARCHAND, G. I. C., and HATFIELD TRUST, Ltd., (trading as KINGSWAY ELECTRICAL SERVICES), GAUGHAN, M., and WING, G. R., 54, Bloomsbury Street, London. May 25, 1935, No. 15288. [Class 38 (v)] A foot-operated switch comprises a tumbler switch 1 mounted on a base plate 5 to which is hinged at 10 a pedal 7. A link 13 formed of two strips is pivoted at 14 to the pedal 7 while the other end is forked at 17 and apertured to embrace the knob 18 of the dolly of the switch 1 to which it is clamped by a screw 15. A retraction spring 19 has its ends supported by studs 20, 21 which, by their mutual engagement, limit the inward movement of the pedal 7.
Patent GB-1181932-A (GB)
Title: Temperature-Stabilised Crystal-Controlled Oscillators
IPC: G04F5/06
Filed: 1968-03-29
Abstract: 1,181,932. Transistor oscillating circuits. EBAUCHES S.A. 29 March, 1968 [29 April, 1967; 29 Feb., 1968], No. 15409/68. Heading H3T. A temperature-stabilized crystal-controlled oscillator CP is characterized in that its circuit incorporates a variable capacitative element, constituted by a fixed capacitance C and a variable-gain amplifying network, the latter itself constituted by a fixed gain amplifier and a variable attenuator, the variable attenuator being constituted by a network of fixed resistors R and thermistors r N , all in such a fashion that the oscillator is at least partially temperaturestabilized. Various attenuator networks are disclosed in the Specification (Figs. 8-12, not shown) using thermistors with both positive and negative temperature coefficients to obtain various temperature compensation curves. An alternative circuit is also disclosed in which the variable attenuator is placed between two transistor amplifying stages with overall feedback via the fixed capacitor (Fig. 13, not shown). Negative feedback may also be used around the amplifier (Fig. 14, not shown).
Patent GB-1436656-A (GB)
Title: Overhead line for power transmission or communication
IPC: H02G7/12
Filed: 1974-04-05
Abstract: 1436656 Supporting overhead conductors G SCHOLL 5 April 1974 [10 April 1973] 15494/74 Heading H2C An overhead transmission line for power or communications comprises line conductors 4, connected to at least one supporting rope 3, the unloaded supporting rope being (e.g. 5À3%) shorter, the line conductors being (e.g. 0À13%) longer than the chordal span between points of suspension on consecutive pylons or masts. The line conductors 4 and supporting rope 3 are connected by hangers 5 consisting of two halves 7 and 8 clamped together by bolts 9. The rope is gripped firmly, whereas the conductors are free to slide in their bearing bushes 12 which are made of a softer material (such as PTFE) than the wires of the conductors. Cooling fins 14 are provided between the centre bearing 10 and the outer bearings II. In another embodiment of a hanger, Fig. 3 (not shown) for use with four line conductors, two additional arms 16, extend obliquely downwards, and the supporting rope 3 is replaced by three separate ropes 19, 20, 21 their outline being roughly elliptical with the major axis parallel to the ground.
Patent GB-276765-A (GB)
Title: Method of manufacturing turbine blades
IPC: B23P15/02
Filed: 1926-06-19
Abstract: 276,765. Fairweather, H. G. C., (Svenska Turbinfabriks Aktiebolagst Ljungstr÷m). June 19, 1926. Blades are formed from a blank 2 having a cross-section corresponding to that of the operative portion of the finished blade by cutting the blank into pieces two-blades long, removing material at both ends to form a flat web 3 with an enlarged root 4, removing material at the middle portion 5, and cutting the piece midway between the ends of the reduced portion 5 to form two blades. The removal of the material may be effected by a cutting operation. The end 5 of the finished blade passes through an aperture in a shrouding ring and is riveted thereon.
Patent GB-810322-A (GB)
Title: Method of sealing glass to other elements
IPC: G03B21/58
Filed: 1956-05-18
Abstract: 810,322. Glass to metal seals. PITTSBURGH PLATE GLASS CO. May 18, 1956 [Aug. 17, 1955], No. 15536/56. Drawings to Specification. Class 36. [Also in Group XXIII] In the sealing of glass to glass or metal the parts that are to be sealed are caused to adhere to one another temporarily (e.g. during transporting to the sealing apparatus and to prevent relative movement therein) by coating them with a polybutene. This is burnt off as the glass is heated to the softening temperature at which the permanent sealing takes place. The invention is .described with special reference, inter alia, to the sealing of the metal eyelet of the vent opening in a double glazing unit to an intermediate glass in the opening. Powdered glass frit may be added to the polybutene. Polybutenes having a molecular weight between 300 and 15000 are particularly referred to.
Patent GB-626018-A (GB)
Title: A power-driven vehicle for horticultural and agricultural use
IPC: B62D49/06
Filed: 1947-06-12
Abstract: 626,018. Agricultural tractors. HUMBERSIDE AGRICULTURAL PRODUCTS, CO., Ltd., and ELLIS, E. D. June 12, 1947, No. 15551. [Classes 79 (i), 79 (iv) and 79 (v)] A self propelled light agricultural tractor has a main chassis frame of U-shape in plan with a steerable wheel 4 in the front at the base of the U and a pair of driving wheels 12, 13 exteriorly of the side frame members near the open end thereof. The frame as shown comprises members 1, 2 and a cross member 3. The steerable wheel 4 is mounted for castor effect and is controlled by tiller 7. The members 1, 2 are braced at the rear end by depending members secured to the rear axle housings 10, 101, whilst torque reaction of the rear axle is taken by means of angle brackets 11 attached to the front of the rear axle and to an angle bracket attached to an intermediate transverse member 14. The rear axle, which is splined to carry the wheels 12, 13, thus allowing track variation, is driven by engine 16 through a clutch and gears. The engine clutch and brakes for the wheels 12, 13 are controlled / by pedals 15, whose journal bearings are carried on the member 14. A power take-off 18 may be provided. Specifications 582,352 and 626,019 are referred to.
Patent GB-749904-A (GB)
Title: Improvements in and relating to heating units for combustion turbines
Inventor: HRYNISZAK WALDEMAR
IPC: F02C7/105
Filed: 1952-06-23
Abstract: 749,904. Generating combustion products under pressure. PARSONS & CO., Ltd., C. A. May 28, 1953 [June 23, 1952], No. 15784/52. Class 51(1). [Also in Group XXVI] A heating unit for heating the working medium of combustion turbines comprises the combination of a regenerative heat exchanger of the rotary disc type with a combustion chamber burning.a vaporised fuel and having a rotary flame trap. The apparatus comprises four rotary disc regenerators 10 disposed around and with their axes parallel to the axis of the unit. The turbine exhaust gases pass through the outer annular duct 1, in which is disposed a fuel vaporising coil 12, and the air from the compressor passes through the inner annular duct 2, 3 being heated in passing through the regenerator disc matrices. The combustion chamber is of annular form and contains a rotary flame trap 4. The rotor 7 is provided with inlet vanes 5 and outlet vanes 6, some of the passages between the vanes 6 containing the flame trap material 15 which may be material having a honeycomb cross-section or perforated sheet or gauze. The vaporised fuel issues from the nozzles 14 and mixes with the heated air, the mixture being evenly distributed in passing through the flame trap. The flame trap is mounted on the shaft 8 on which is mounted the gear-wheel 9 which drives the regenerator rotor discs. The rotary flame trap may be driven by pre-heated air impinging on suitably shaped vanes formed integrally with the flame trap. In an alternative arrangement the axes of the heat exchanger rotor discs are radially disposed about the central axis of the unit and the turbine may be disposed in the central space. Specifications 735,176, 735,177 [both in Group XIII], and 735,186 are referred to.