baber/WOPTO huggingface dataset:
Patent GB-969798-A (GB)
Title: Improvements in wrapping machines
IPC: B65B41/18
Filed: 1962-04-18
Abstract: 969,798. Feeding webs. J. W. J. GREGORY. March 4, 1963 [April 18, 1962], No. 15080/62. Heading B6B. [Also in Division B8]  In a wrapping-machine of the kind described in Specifications 453,165, 542,234 551,523, and 566,702, where wrapping web is drawn off a reel in amounts corresponding to the girth of an article being wrapped together with an overlap drawn off by an overlap device, a photoelectric monitor is positioned to monitor registration marks equally spaced on said web at intervals corresponding to the length of a single wrapper, means for adjusting the stroke of the overlap device being operated by signals from said photo-electric monitor to obtain a correct or more nearly dorrect registration for the next article to be wrapped. In the embodiment shown each article passes along conveyers 2, 4 on to an elevator platform 8, thereby catching an end 6a of web therebeneath and drawing it from the reel 6, and is moved upwards to bring the web round an overlap roller 10. As the platform 8 reaches the top of its movement the overlap roller 10 is moved downwardly, its stroke being adjusted by a servomotor operated by signals received from the photo-electric monitor 12 in conjunction with a rotor switch mounted on the machine main shaft 13. The rotor switch comprises a cam 14 and a pair of cam followers 14a, 14b the movements of which open or close two pairs of contacts 15a, 15b. The cam 14 is so shaped that the two pairs of contacts are opened and closed alternately for approximately 180 degrees of rotation of shaft 13, but are open simultaneously for one or two degrees either side of a zero degree position. If a registration mark is monitored just prior to both contacts being open, which position corresponds to there being too much overlap for correct registration, the signal energizes the servomotor to decrease the stroke of the overlap roller. Similarly a signal received just after both contacts have been open causes the stroke of the overlap roller to be increased. If, for example, the stroke of the overlap roller 10 is increased a correspondingly large amount of web will be drawn off before a knife 11 operates so that the effective overlap for the succeeding article is increased.
Patent GB-1008584-A (GB)
Title: Improvements in or relating to the manufacture of polycarbonates
Inventor: ALLEN CHARLES FRANCIS HITCHOCK
IPC: C08G64/20
Filed: 1962-04-18
Abstract: Linear polycarbonates are made continuously by feeding into the top of a vertically disposed column at 5 DEG  to 50 DEG  C. (1) a bisphenol dissolved in 2-8 times its weights of water containing at least 1.1 molecular equivalents of sodium or potassium hydroxide per mole of bisphenol, (2) a hydrocarbon or chlorinated hydrocarbon solvent for the polycarbonate fed at a rate of 180-4000 mls. per gram/mole of the bisphenol and (3) phosgene fed at a molar rate between 1.0 and 1.1 times that of the bisphenol and simultaneously introducing into the column at a point between 10% and 60% of the total column lenth above its base (4) a catalyst which is a tertiary alkylamine, a quarternary ammonium hydroxide or a melt of either of them; the total dwell time for the feedstocks (1), (2) and (3) being 20 to 240 seconds and the dwell time for the catalysed feedstocks being 15 to 150 seconds. The column may be provided with a cooling jacket.  Examples describe the preparation of bisphenol-A polycarbonate. Specification 772,627 is referred to.
Patent GB-578869-A (GB)
Title: Improvements in or relating to dielectric compositions and sealed electrical apparatus impregnated therewith
IPC: H01F27/08
Filed: 1945-06-14
Abstract: 578,869. Electric insulation. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. June 14, 1945, No. 15102. Convention date, June 29, 1944. Drawings to Specification. [Class 36] [Also in Group XXXV] A dielectric composition, for sealed electrical apparatus such as a transformer with electrical elements disposed within and spaced from a hermetically sealed casing, comprises a major volumetric proportion of fine spherical particles of a solid inorganic material having a coefficient of cubical expansion less than that of the casing and elements and a minor proportion of liquid dielectric filling the rest of the space between the casing and elements, the dielectric composition having a coefficient of thermal volumetric expansion so correlated to that of the casing and elements that adverse pressure conditions are not established within the casing over the range of operating temperatures of the apparatus. The spherical particles, which preferably form more than 70 per cent. of the composition and are less than .1 inch in diameter are made of a substance having a coefficient of thermal volumetric expansion of 30 x 10<-6> or less, fused vitreous materials such as glass, porcelain, alumina, silica, silicon carbide and magnesia being especially suitable. The spheres may be all the same size, or smaller ones whose diameter is between .5 and .75 that of the larger ones may be used to fit in the spaces, still smaller ones being used to fit in the remaining spaces, four or more different sizes of spheres being intermixed if desired. Various liquid dielectrics may be used, such as petroleum oils, halogenated cyclic compounds, molten waxes and paraffins, liquid gases and pitches.
Patent GB-1334159-A (GB)
Title: Billet-gauging instrument
IPC: B21B38/04
Filed: 1971-05-14
Abstract: 1334159 Measuring billet dimensions electrically K E JANSSON 14 May 1971 [15 May 1970] 15104/71 Heading G1N Apparatus for gauging billets comprises four wheels 7, 8, 9, 10 arranged to run on a billet X, wheels 7, 9 rotatably mounted directly on a bracket 1 and wheels 8, 10 rotatably mounted on limbs 12, 13 pivotable about pins 13, 14 respectively so as to permit the limbs to be pivoted apart sufficiently to allow the bracket to be moved from a first position adjacent the billet to a second position remote from the billet without the wheels on the limbs interferring with the billet, by pneumatically or hydraulically operable cylinders 15, 16 respectively, displacement of the limbs in accordance with billet dimensions being monitored by a variable resistor or capacitor 19, 20 actuated by an arm 17 or 18 on the limbs. The bracket is carried by the piston rod 6 of a pneumatically or hydraulically operated cylinder 5 and the bracket together with the cylinder and with guides 2 is pivotable about the longitudinal axis of the billet on flanges 24 fixed to the guides which flanges are received in recesses 25 in a frame. In the embodiment of Fig. 5 (not shown) the displacement of a limb is sensed by a permanent magnet (27) on the limb and sensing device (28) on the bracket.
Patent GB-567039-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65G37/00
Filed: 1942-10-29
Abstract: 567,039. Conveyers. SUTCLIFFE, Ltd., R., and SHEPPARD, J. Oct. 29, 1942, No. 15167. [Class 78 (i)] A conveyer comprises a number of selfcontained over-lapping sections or units, one section alone being provided with a power unit and driving the other sections. Each conveyer section 1 comprises a trough 3 having a belt or scraper chain 6 passing over head and tail pulleys or sprockets at 4, 5, one end of the section fitting into the end 2 of the adjoining section and being clipped or clamped thereto. One section carries a power unit 11 which drives a longitudinal shaft 7, driving through bevel or worm gearing the shaft 9 of the head or tail pulley or an intermediate pulley. All the shafts 7 on the conveyer sections are provided with flexible couplings 8 and are connected together by suitable gearing or couplings. A shear pin or slipping clutch may be inserted in the drive of each shaft section 7 to interrupt the drive if the conveyer chain or belt becomes jammed.
Patent GB-1532522-A (GB)
Title: Roller train for the conveying and storage of articles
IPC: B65G13/06
Filed: 1976-04-14
Abstract: 1532522 Rollerway drives R GEBHARDT 14 April 1976 15167/76 Heading B8A An intermediate roller 8 for transmitting drive from a drive means 5 to a roller 2 and which can be moved from a drive to a disengaged position, as in positive engagement with the roller 2 and/or the drive means 5. As shown, the roller 8 is carried by a spindle 9 on a housing 10 pivoted about a pivot 11 by an operating bar, and comprises a roller part 12 on frictional contact with the roller 2 and toothed wheel 13 meshing with an endless drive chain 5. Pivoting of the housing 10 moves the roller part 12 out of contact with the roller 2. In an alternative (Figs. 3 and 4), the roller 8 comprises a toothed wheel (18) in contact with a chain 5 and a toothed wheel (19) secured to the roller 2, the spindle 9 being carried by an articulated link so as to move the toothed wheel (18) out of contact with the chain.
Patent GB-1377471-A (GB)
Title: Treatment of skins
IPC: C08L91/00
Filed: 1973-03-29
Abstract: 1377471 Leather treatment CHEMISCHE FABRIK STOCKHAUSEN & CIE 29 March 1973 [29 March 1972] 15176/73 Heading C6C Leather or another skin is greased or dubbed by contacting the leather or other skin with a treating composition comprising a pulverulent product which has been obtained by drying an aqueous solution, emulsion or dispersion which comprises a mixture of at least one substance of non-solid consistency e.g. a water-soluble, emulsifiable or dispersible fat, oil or wax, together with a carrier composition having the dry weight analysis of: (a) from 0.1 to 35% of inorganic and/or organic salts, (b) from 0.1 to 90% of albumin, an albumin derivative or a mixture thereof, and (c) from 0.1 to 70% of a mono-, oligo- or polysaccharide, a derivative thereof or a mixture thereof. The pulverulent product is preferably used in aqueous solution, emulsion or dispersion. Component (a) may be a chloride, sulphate, carbonate or phosphate of an alkali metal or alkaline earth metal, a chloride or sulphate of aluminium, chromium or zirconium, or an alkali metal or alkali earth metal salt of formic, acetic, glycolic, lactic, thioglycolic, citric or phthalic acid. Component (b) may be milk albumin or a hydrolysate of water-insoluble albuminous substances of plant or animal origin e.g. casein, collagen or leguminous albumins; and component (c) may be glucose, mannose, fructose, galactose, glucosamine, saccharose, lactose or starch. The composition may also contain one or more fillers, anti-caking agents, builders, or additives customarily used in leather or skin treatment such as a dye, tanning agent, disinfectant, preservative, wetting agent or an emulsifier.
Patent GB-162949-A (GB)
Title: Improvements in or relating to electrically-operated indicator or annunciator apparatus
IPC: B61L17/02
Filed: 1920-06-04
Abstract: 162,949. Siemens Bros. & Co., Ltd., and Ferreira, L. de M. G. June 4, 1920. Reel and web apparatus.-Electricallyoperated indicating apparatus of the kind in which the indications are carried by a band or web wound from one roller to another to display the req u i r e d indication, is operated and controlled by means of known kind so that the band is moved from one indication to another by a continuous as distinguished from a step-by-step movement, the indication exhibited corresponding with the position of a control switch. The apparatus is particularly for use in conjunction with railway semaphore signals. The indications which are preferably of translucent or stencil type illuminated by a lamp m, are carried by a band b wound backwards and forwards between rollers c, d, the roller c being pro. vided with a spring c<1> serving to keep the band taut. A motor e, having two field windings e<1>, e<2> separately energized and adapted to drive in opposite directions, serves to drive the band through gearing g<1>, g<2>, g<3>, g<4>, chain-wheel h, chain i, and chain-wheels h<1> on the roller spindles. The motor also drives, through worm gear l, an insulating-disc k having two contact segments k', k<2> co-operating with a series of fixed contact fingers j. The two extreme contacts j are connected to the windings e', e<2> respectively. The remaining contacts are individually connected to corresponding contact studs o, over which a control switch-arm o<1> is adapted to be moved. When arm o<1> is placed on a stud o corresponding to a required indication, current is supplied to one or other of the field windings e', e<2> so that the band b and disc k are driven in a direction corresponding wirh that in which arm o<1> was last moved, and the motion continues until the field circuit is broken by the energized contact j registering with the gap between segments k', k<2>, in which position the required indication is exhibited through a glazed opening in the indicator casing a.
Patent GB-129329-A (GB)
Title: Improvements relating to Means for Destroying Aerial Craft.
Inventor: CALTHROP EVERARD RICHARD
IPC: F41H11/04
Filed: 1917-10-19
Abstract: 129,329. Calthrop, E. R. Oct. 19, 1917. Trapping submarines.-Wires and like entanglements 10<1>, supported by parachutes 1, 2 or the like, are dropped from aircraft 4 into the sea for destroying submarine vessels, the first parachute being expelled or released from the aircraft under the control of a person on the aircraft, and the entanglements being subsequently expelled or extracted by the pull of the initial parachute while the aircraft proceeds on its way. Specifications 21312/14 and 117,092, [Class 4, Aeronautics], and 128,294, [Class 9 (ii), Torpedoes &c.], are referred to.
Patent GB-425802-A (GB)
Title: Paper for corrugating purposes and process of forming the same
IPC: D21J1/08
Filed: 1934-05-22
Abstract: 425,802. Corrugated paper and board. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Hinde & Dauch Paper Co. ; Sandusky, Ohio, U.S.A.) May 22, 1934, No. 15224. [Class 96] Paper or board for forming the corrugated part of boxes &c., for building, heat or sound insulating &c. is made from mixed paper such as that used for making chip paper by treatment with caustic alkali, and maintaining an alkaline condition during the paper-making process so that the product is free from acid reaction. Sodium or calcium hydroxide is used, e.g. 2 per cent if the proportion of old newspaper is small, or 4 per cent if it exceeds 10 per cent. The raw material may be treated hot or cold in a beater or Werner-Pfleiderer mixer, and is jordaned more severely than usual. The paper may be formed on a single, or multi-cylinder machine, or on Fourdriniers ; it may be 0À006-0À013 inches thick, and the corrugations may be 0À175 inches high and 1/3 inch apart.
Patent GB-799184-A (GB)
Title: Improvements in or relating to coating or adhesive compositions
IPC: C08L5/04
Filed: 1955-05-26
Abstract: Nitration products of alginic acid or esters of alginic acid, in which the free hydroxyl groups of the mannuronic unit are wholly or partly replaced by nitrate groups, are obtained by reacting fuming nitric acid with alginic acid, a metal alginate such as sodium alginate, a partially esterified alginic acid in which up to a quarter of the hydroxyl groups are esterified with a lower fatty acid such as acetic acid, or with an ester of alginic acid in which the carboxyl groups of the mannuronic unit are esterified with an alkylene oxide such as ethylene oxide. Improved nitration derivatives are formed by employing nitric acid from a former nitration in admixture with a further quantity of fuming nitric acid.ALSO:An adhesive, which adheres to gelatine and cellulose ester films and is particularly suitable for binding the gelatine-silver-halide layer of a photographic film or the coloured hardened gelatine layer of a light-filter to its cellulose-ester support, comprises a solution, in a volatile solvent, of gelatine and a nitration product of either alginic acid or a fatty acid partial ester of alginic acid, the weight ratio of the nitration product to the gelatine being between 9 : 1 and 1 : 9, preferably 2 : 8.  The carboxyl group of the mannuronic part of the alginic acid may be esterified with an alcohol or an alkylene oxide, e.g., ethylene oxide.  The nitration product may contain nitrate and acetate groups in the ratio 3 : 1.  The adhesive may be prepared by mixing gelatine, alginic acid nitrate or its hydroxyethyl ester, ethylene chlorhydrin, acetone, ethanol, hydrochloric or trichloroacetic acid, and water.  Methylene chloride and glycol diacetate may be added.  Finely divided silver may also be added, to prevent halation.
Patent GB-550123-A (GB)
Title: Improved piezo-electric device for converting pressure variations into potential variations
IPC: G01L23/10
Filed: 1941-11-26
Abstract: 550,123. Piezo-electric crystals. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Nov. 26, 1941, No. 15249. [Class 40 (v)] In a pressure indicator in which pressure is measured in terms of the E.M.F. produced when a piezo-electric crystal is compressed through the medium of a diaphragm, the sensitivity and linearity are increased by subjecting the crystal to a preliminary pressure by means of an adjustable spring, which thus relieves the diaphragm of strain. Pressure is applied through a diaphragm 2 and member 6 to crystals 3, 4 supported by an adjustable member 8. The E.M.F. is taken off by a plate 7 and lead 7A. Preliminary pressure is applied by three dish springs 5 supported on a shoulder on a bush 1 and acting on member 6 the pressure being adjustable by member 8.
Patent GB-1209863-A (GB)
Title: Improvements in and relating to viscosimeters
IPC: G01N11/14
Filed: 1969-03-24
Abstract: 1,209,863. Viscosimeters. CONTRAVES A.G. March 24, 1969 [March 25, 1968], No. 15295/69. Headings G1N and G1S. A viscosimeter comprises a body 3 rotatable in a substance 4 to be investigated and a gear-box 2 mounted to be rotatable about the rotational axis of the body to generate a signal comprising a measure of the viscosity of the substance, the gearbox containing a right angle bevel gearing 22, 23 which drives the body and is coupled by a universal joint K to a driving motor 6. The body 3 is driven by the motor 6 via a gear-box 60, the speed of the motor being selected and stabilized by a frequency control 62. The gear-box is rotatably mounted in a casing 1 by bearings 11, 12. A shaft 21 of the gearbox is suspended from a torsion bar T and the gearbox is rotated by the reaction of the substance on the body 3 until this reaction is balanced by the restoring force exerted by the torsion bar. The angle of rotation, which is a measure of the viscosity of the substance, is measured by an electromagnetic pick-off 71, 72 and indicated on an instrument 7. The temperature of the substance 4 is controlled by, for example, a thermostatically controlled heating plate.
Patent GB-658225-A (GB)
Title: Improvements in grip, clip, or clamp devices
IPC: F16G11/10
Filed: 1949-06-08
Abstract: 658,225. Rope grips. WHITEHOUSE, J. W., and WILD & CO., Ltd., A. G. June 8, 1949, No. 15308. Addition to 624,907. [Class 78 (ii)] In a rope grip as described in the parent Specification the operating lever 4 has two holes 31 and 32 in the head 29 which register, in the jaws clamped and partly open position, with a spring-loaded plunger 33 contained in a housing 36 secured to the jaw 27. In the partly-open position of the jaws 2 and 3 the rope is retained free to run between the jaws, the jaws are opened further to free the rope by further movement of the lever. The movement of the jaw 3 is limited by a guide-bar 19 secured to the hook 5 and embracing the stem 16 of the upper jaw 3. The stem 16 carries a guide rib 18 which projects into a guide slot 17 in the flange 10 and is interrupted for the guide-bar.
Patent GB-154253-A (GB)
Title: Improved method of and apparatus for carbonisation or destructive distillation
IPC: C10B49/08
Filed: 1919-06-18
Abstract: 154,253. Underfeed Stoker Co., and McEwen, S. June 18, 1919. Coking processes; retorts.-For carbonizing finely-divided fuel to, obtain a powdered coke, the coal particles are suspended in a mixture of the coal gas evolved and the combustion products obtained by burning part of the coal gas in proximity to the carbonizing-zone. The coal dust is fed from a hopper a into a pipe c, and is carried by a circulating current of hot gas into an upwardly expanding chamber h. The gas is circulated by a fan d and is admixed with combustion products from a furnace f; the temperature of the system is about 500‹ C. The carbonized dust is separated from the gas in a cyclone apparatus i, and discharged through a valve k, and surplus gas &c. escapes through a counterweighted relief valve o to a condenser q. In a modification, the gas circulation is maintained by an injector connected to the furnace.
Patent GB-1133561-A (GB)
Title: Improved process for the preparation of polyarylene polyethers
IPC: C08G75/23
Filed: 1966-04-06
Abstract: 1,133,561. Polyarylene polyethers. UNION. CARBIDE CORP. 6 April, 1966 [8 April, 1965], No. 15364/66. Heading C3R. Polyarylene polyethers are prepared by (a) contacting equimolar amounts of an alkali metal double salt of a dihydric phenol and a dihalobenzenoid compound having an inert electron withdrawing group in at least one of the positions ortho and para to the halogen atoms, with a solvent mixture comprising an azeotrope former and a solvent of formula R-S(O) z -R where R is a hydrocarbon group or two R groups are connected to form an alkylene group, and z is 1 or 2, the azeotrope former and solvent being in a weight ratio of from 10 : 1 to 1 : 1, (b) removing water as an azeotrope until the mixture is anhydrous, (c) removing excess azeotrope former until the ratio of azeotrope former to solvent is from 1 : 1 to 1 : 10, and (d) reacting the alkali metal double salt with the dihalobenzenoid compound in the solvent to form the polymer. The alkali metal double salt may be formed in situ. Polymers that may be prepared by the process include those of formula where Y is X is and Z is or or Y and Z are the same and are and X is or Y and Z are the same and are and X is or or In examples the dihydric phenols are bisphenol A, tetramethylene dibisphenol A and 4,4<SP>1</SP>-dihydroxydiphenol ether, the dihalobenzenoid compounds are 4,41-dichlorodiphenylsulphone, 4,4<SP>1</SP>-dichloroazobenzene, 4,4<SP>1</SP>-difluoroazobenzene, 1,4-bis(p-chloro-N-methyl-benzenesulphonamido) - butane and piperazine bis - pchlorobenzenesulphonamide, the solvent is dimethylsulphoxide and the azeotrope former is chlorobenzene.