baber/WOPTO huggingface dataset:
Patent GB-1498467-A (GB)
Title: Process for the manufacture of polyvinyl chloride and of soft foamed plastics material therefrom
IPC: C08J9/06
Filed: 1975-05-09
Abstract: 1498467 Emulsion polymerization of vinyl chloride CHEMISCHE WERKE HULS AG 9 May 1975 [14 June 1974] 19594/75 Heading C3P Polyvinyl chloride suitable for use in placicized foamed products is made by continuously emulsion polymerizing vinyl chloride in the presence of a water-soluble initiator and 1À6- 2À8% based on vinyl chloride of an emulsifier system consisting of (a) 70-30% alkyl sulphate ROSO 3 M (where R=C 10-18  alkyl, M=Na or K) together with (b) up to 65% alkyl ether sulphate R(OCH 2 CH 2 ) n OSO 3 M (where n = 1-5) and/or (c) up to 60% of an alkali metal C 10-20  alkyl sulphonate. Components (a), (b) and (c) may be mixtures: (a) and (b) may contain predominantly lauryl components and (c) may contain predominantly C 15  or C 16  components. In examples, sodium acetate may also be present: the initiator is K 2 S 2 O 8  and the conditions 50 C., 5 at., 48% solids content. The products are spray dried with air at 160 C. and tested by mixing with dioctylphthalate, benzyl butyl phthalate, azodicarboxylic acid amide, Cd/Zn stabilizer and TiO 2  to form a paste which is spread on a release paper and foamed at 200 C.
Patent GB-1219513-A (GB)
Title: Apparatus for severing and threading photographic slide frames
IPC: B29C31/00
Filed: 1968-04-25
Abstract: 1,219,513. Injection moulding. GEIMUPLAST PETER MUNDT K.G. 25 April, 1968 [27 April, 1967], No. 19643/68. Heading B5A. Injection moulded photographic slide frames or slide frame halves 17-20 interconnected by sprue 16 drop from the mould, not shown, into a hopper and pass therefrom down a guide 9 and into a housing 15 where the sprue is removed by a circular knife 30, and the separated halves are threaded or stacked on to rods 11, 12 located in the housing. Each moulding 17-20 is engaged by the housing walls and by spacer bars 22-25 provided with springs 26-29, so that the moulding is appropriately guided when pushed against the knife by a plate 34 at the end of a hollow cylinder 32, preferably reciprocated hydraulically. The cylinder embraces the knife in its forward position and receives the severed sprue which is ejected from an opening 33. A safety device to stop the machine should a moulding be stuck in the guideway adjacent the housing comprises rods 40, 41, Fig. 5, extending from a plate 46 normally connected by a spring 47 to a plate 48 attached to the cylinder 32. Should a moulding be in the guideway when the cylinder is urged towards the knife it will be struck by the rods causing the plates 46, 48 to separate and operate a switch 49, 50. A further safety device is located at the free ends of the stacking rods 11, 12 to operate a switch when a sufficient number of frame halves have been stacked thereon.
Patent GB-867593-A (GB)
Title: Improvements relating to heat treatment of webs and strands
IPC: D01D10/04
Filed: 1958-06-19
Abstract: 867,593. Annealing. INDUSTRIAL OVENS Inc. June 19, 1958, No. 19687/58. Class 72 [Also in Groups XII, XIII, XVI and XXXV] An apparatus for heat treating webs and strands, e.g., metal strip or wire has a means for controlling the temperature to which the treated material is heated. An applied to coating a web 10 of nylon fabric with a synthetic plastic material, the web is first dipped in a liquid bath and then fed through a vertical drying oven 18 around rollers 40, 41, the roller 40 being mounted on an endless cable or chain 43 at either side of the oven. Each cable or chain 43 passes around sprockets 44, one of which is driven by a reversible motor 45 through a reduction gear 48. The motor 45 is controlled by a radiation pyrometer which senses the web temperature, such that, e.g., upon an increase in web temperature the roller 40 is lowered to decrease the length of the web path in the oven 18. Alternatively, a physical variable of the web proportional to the web temperature may be sensed instead of the web temperature. Specification 867,594 is referred to.
Patent GB-699381-A (GB)
Title: Improvements in slitting devices for sheet material
Inventor: WRIGHT JOHN LEE ROBERTS
IPC: B26D1/50
Filed: 1951-08-21
Abstract: 699,381. Slitting sheet material. MANN & CO. Ltd., G. Aug. 14, 1952. [Aug. 21, 1951] No. 19692/51. Class 31 (i). A device for slitting sheet material primarily for use in a confined space in a printing or other machine whilst the sheet is being drawn positively past the device comprises a driven rotary disc cutter 12 mounted to co-act with a stationary replaceable cutter block 14 supported by the outermost part 11 of an arm 10 projecting from a boss 9 provided on a pivoted mounting bracket 3, the innermost upwardly projecting end of the arm. 10 being shaped at 18 to be of thin cross-section with a tapered leading edge 18a so that slit material can pass readily by with little disturbance of the cut edges of the material. The mounting bracket 3 is pivotally mounted on a shaft 6 and is moved by a handle 5 or other means to its operative or inoperative position in either of which positions it is retained in position by means of a spring-loaded plunger 4 provided on a fixed bracket 2. The cutter, which is spring-pressed towards the cutter block, is driven in the direction of travel of the sheet by means of gears 19, 20, 21. The cutter may be driven in the opposite direction. The forward end of the cutter block and of the mounting arm therefor are curved at 17 to provide a leading-in edge for the sheet material approaching the cutter. There may be a plurality of slitting devices. The device may be mounted in the machine immediately after the delivery cylinder at the end of the sheet supporting tapes 8 but it can be mounted in any other position e.g. whilst the sheet is travelling vertically or at an inclination. If a special fixing is needed this may comprise a driving shaft for the cutter on which the mounting bracket can be pivoted and a fixed sleeve bearing carrying the retaining bracket, or the mounting bracket when fixed.
Patent GB-841954-A (GB)
Title: Method and apparatus for surfacing glass
IPC: B24B7/26
Filed: 1957-06-24
Abstract: 841,954. Roller conveyers. LIBBEY-OWENS-FORD GLASS CO. June 24, 1957 [July 12, 1956], No. 19743/57. Class 78 (1). [Also in Group XXIII] A conveyer for moving sheets of glass 27, Fig. 1, to opposed pairs of surfacing tools 54 (Group XXIII) comprises rubber-covered rollers 28 which are driven through clutches 36 by a chain 41 from a motor 32. The clutches have a toothed portion 37, Fig. 4, which is secured to the chain-driven sprocket 40 by a bush 39 rotatable on the shaft 29 of the roller and engages a complementarily toothed portion 38 axially movable by prevented from rotation on the shaft 29 by a pin 46 and slot 45 and spring-urged against the portion 37. The teeth on the portions are so arranged that the rollers can rotate faster than their motor-driven speed when a sheet of glass is moved manually or otherwise towards the surfacing tool to position it behind the preceding sheet.
Patent GB-179861-A (GB)
Title: Non-skid devices for pneumatic tires
IPC: B60C27/08
Filed: 1921-07-22
Abstract: 179,861. Forrester, H. J. C., (Bear Manufacturing Co.). July 22, 1921. Tread bands, projections, and surfaces. - A non-skid attachment comprises a curved channel-shaped metal saddle 1 which fits astride the felloe and is formed with a transverse slot 5 to accommodate a spoke, a locking- bar 18 to hold the saddle 1 in position, and curved shoes 11 which connect by short chains 16 to apertured ears 17 in the locking-bar 18. The shoes 11 have toothed ribs 12 to prevent skidding, and are formed with a longitudinal tread connection 13 which has outwardly bent loops 14 to fit slots 15 in the shoes 11.
Patent GB-153675-A (GB)
Title: Improvements in yarn winding frames
IPC: B65H57/12
Filed: 1919-08-13
Abstract: 153,675. Brook, N. Aug. 13, 1919. Thread guides. - In yarn-winding frames, wherein a fixed rod provided with replaceable poteyes is interposed between the tension-rails and the traverse guide, the fixed rod is provided with a series of flanged and slotted porcelain eyelets D, Fig. 5, which pass through transverse holes in the rod and are secured therein by the flanges and springs G, Fig. 1. It is stated that the invention may be applied to spinning and twisting frames. In the Provisional Specification it is stated that the fixed rod and the reciprocating rod are each fitted with porcelain eyelets.
Patent GB-631771-A (GB)
Title: A new or improved polish for cars, furniture and other articles
IPC: C09G1/08
Filed: 1947-07-24
Abstract: A polish comprises 15 to 30 per cent of beeswax and 85 to 70 per cent of mineral wax dissolved in sufficient solvent to produce a liquid consistency.  Specified solvents are ethers such as petroleum ether and methylated ether and white spirit.  A mixture of mineral waxes, e.g. 35 to 45 per cent paraffin wax and 25 to 45 per cent ceresin wax, may be used.  The different waxes may each be dissolved in a solvent and the solutions mixed and thinned. Thus beeswax may be dissolved in petroleum ether with a little ammonia, ceresin wax in white spirit and paraffin wax in white spirit, the third solution being then boiled and added to a mixture of the other two and then thinned.
Patent GB-959025-A (GB)
Title: Vehicle for travelling over land and/or water
Inventor: COCKERELL CHRISTOPHER SYDNEY
IPC: B60V1/00
Filed: 1959-06-10
Abstract: 959,025. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. June 8, 1960 [June 10, 1959], No. 19950/59. Heading B7K. A vehicle for travelling over a surface and which is supported above the surface, at least in part, by a cushion of pressurized air formed and contained beneath the vehicle, comprises means for producing a propulsive thrust operable to move said vehicle, means for exerting about a vertical axis a turning movement upon said vehicle, means for varying the direction of the propulsive thrust, and means for controlling said turning movement whereby the direction of movement of the vehicle can be controlled and the direction of the fore and aft axis of the vehicle controlled in relation to the direction of movement. The vehicle comprises a compressor 63, Fig. 7, which draws air through an air intake 62 and delivers it to two ducts 64, 65 at the sides of the vehicle and also to an annular port (not shown) in the bottom of the vehicle for the formation of a cushionenclosing air curtain. The ducts open front and rear into ports 66 and 67 and laterally into ports 68 and 69, and adjacent the lateral port 68, duct 64 is provided with a slide member 70 having separately slidable vanes 72 and T3 and a similar slide member 71 with vanes 74, 75 is positioned in duct 65 adjacent port 69. The four vanes are connected by linkwork to a manually-operable member so that they may be selectively adjusted to direct air from the compressor to an appropriate port or ports to effect translational movement of the vehicle in a desired direction. This arrangement is intended for a vehicle operating over water and keels 80 are provided to provide directional stability. In Fig. 9, pivoted vanes 88-91 replace the slide vanes of Fig. 7, and linkwork 87 connects all vanes to a control vane 85 mounted on a pivot 86. The vane 85 is acted upon by ambient airflow or it may depend beneath the vehicle, if operating over water, for control by the local flow of water in order that it may operate vanes 88-91 automatically to ensure directional stability of the vehicle. Apparatus 95 may be provided to bias the control to allow for relative cross-flow of air or water. In Fig. 4, the vehicle has a body 40 with an air intake 41 through which air is drawn by a compressor 42 and supplied to an annular duct 46 for discharge from an annular nozzle 45 in the form of a cushion-supporting gaseous curtain. The duct 46 contains, throughout its length, vanes 48 pivotally mounted at 49 and controlled in groups through a plurality of control mechanisms 50, 51 for simultaneous or differential operation to produce a turning or other control effect on the vehicle. Specifications 854,211, 893,715, 919,350, 935,823, 935,824 and 935,826 are referred to.
Patent GB-1165253-A (GB)
Title: Dyeing and Printing Process
Inventor: CLOUGH DONALD KEIGHLEY
IPC: D06P3/24
Filed: 1967-05-01
Abstract: 1,165,253. Dyeing or printing polyamides. SANDOZ Ltd. 1 May, 1968 [1 May, 1967], No. 19976/67. Heading D1B. Natural and synthetic polyamides are dyed or printed by applying a dyebath, padding liquor or printing paste which contains for 1000 parts by weight 0.1 to 40 parts of a compound of formula I in which R-CO- is a radical of a saturated or unsaturated fatty acid or fatty acid mixture with 8-18 carbon atoms and Y is -O- or -S- each alkylene group having 2 or 3 carbon atoms. Wool and nylon are dyed with acid and metal complex dyes in presence of coconut fatty acid morpholide. Alternatively the polyamides may be penetrated with a compound of formula I above.
Patent GB-740415-A (GB)
Title: Improvements in or relating to the locking of castor wheels
IPC: E04G5/02
Filed: 1953-07-20
Abstract: 740,415. Castors. FLEXELLO CASTORS & WHEELS, Ltd., and WAPSHOTT, S. E. March 1, 1954 [July 20, 1953], No. 20106/53. Class 52(1). [Also in Group XXXIV] A braking or locking device for castors is operated by a pedal lever 8 pivoted to wheel fork 5 at 9 so that when the lever is depressed a ball 17 rides up a sloped part 18, thus causing the end of a pin 15 secured to lever 11 to engage the side of the wheel to prevent rotation thereof and simultaneously a pad 12 carried at the upper end of lever 11 is pressed against a fixed part 2 of the mounting to prevent rotation of the castor. In another embodiment, Fig. 5, the wheel rotation preventing part comprises a screwed pin 19 moved axially against spring 16 by a bar-type head 20.
Patent GB-393779-A (GB)
Title: Transmission mechanism for motor-vehicles
IPC: F16D21/08
Filed: 1932-07-15
Abstract: 393,779. Facilitating changing speed ; claw clutches. DENNIS BROS., Ltd., Woodbridge Works, and POPPE, E., Threegates, Guildown Road, both in Guildford, Surrey. July 15, 1932, No. 20113. [Class 80 (ii).] Relates to motor-vehicle transmission systems including a main friction clutch interconnected with a dogisolating clutch and especially to such mechanism where the clutches are released by servo action as described in Specification 393,778. The isolating clutch is connected to the main clutch control through a withdrawal spring 18, Fig. 3, adapted to allow the isolating dog clutch to remain engaged until after the main clutch has been freed and the dogs are no longer under load. A cam lever 22 corresponds to the cam lever 25 of Specification 393,776 which is struck by a lever pulled by the servo motor after the main clutch has been disengaged and pulled against its clutch stop. A sliding dog clutch member 9 is biased into engagement by a spring 15 situated outside a clutch casing 12 and extending between that casing and a pin 16 in an arm 17 upon a sleeve 14 splined at 13 to a rock shaft 10 controlling the clutch. The clutch teeth 6, Fig. 2, have inclined ends and are undercut as described in Specification 393,747, so as to exert a desirable resistance to release when under load, that is, before the main clutch has been released. According to this invention, a withdrawal spring 18, Fig. 3, stronger than the engaging spring 15 is interposed between the clutch control sleeve 14 and the cam lever 22. The spring 18 is carried on a sleeve 26 splined at 25 on a short rock shaft 23 carrying the lever 22. The spring 18 is secured at one end to a pin 27 rigid with the sleeve 26 and at the other end to the pin 16. The arm 17 has a number of holes 29, Fig. 4, into which the pin 16 can be set alternatively for adjustment. Should the servo device attempt to withdraw the isolating clutch before the main clutch is quite free, no strain is applied to the control gear, and the withdrawal spring 18 winds up and remains so until the main clutch is fully disengaged and the isolating clutch teeth are released from load whereupon the coupling sleeve 14 is twisted back against a suitable stop effecting the withdrawal of the isolating clutch. A stop 32 is shown adapted to be struck by the pin 16 on the arm 17 of the sleeve 14. It is unnecessary accurately to arrange for lost motion in the servo mechanism, such as that described in Specification 393,777, since this resilient device answers the purpose.
Patent GB-183486-A (GB)
Title: Improvements in the manufacture of short candles or night-lights, and new means for fixing the wick
IPC: C11C5/02
Filed: 1922-07-24
Abstract: 183,486. Ragionieri, A., and Madrigali, O. July 25, 1921, [Convention date]. Night-lights.-Wicks are fixed in night-lights by metal discs 8. Fig. 8, in which the tongues 10 that are pressed down to grip the wick are on the opposite side to the tongues 9 adapted to anchor a disc in the base of a night-light. An apparatus for feeding, guiding, and cutting the wick and for closing down the tongues 10 is shown in Fig. 1. A night-light, with a disc 8 anchored therein, is placed base upwards with its wick hole over a nozzle y in a recess, in a block z on the table a, wick is directed through shallow circumferential grooves G, Fig. 7, in engaging wheels f, g and into a guide x leading to the nozzle y, and the operating lever n pivoted on an adjustable fork m is pulled down. The wheels f, g are rotated a predetermined amount, and so feed a desired length of wick into the night-light, through links q and a counterweighted pawl r pivoted to levers t pivoted on the spindle e of the wheel g. A stamp p then presses down the tongues 10 of the disc 8 and fixes the wick, and an adjustable pin or cam 5 turns a pivoted lever 4 so that its lower end 3 forces a knife 2 along a groove 1 between the block z and table a, and the wick is cut. The lever is returned by a counterweight v, a spring w, or both, the knife by a spring 6, the nightlight is removed, and the operation is repeated. The extent of rotation of the wheels g, f, and therefore the length of the wick fed, is regulated by a screw u bearing against the edge of the table a. Rotation of the wheels in the opposite direction is prevented by the friction of a pin 7, Fig. 7, pressed by a spring into the groove G of the wheel g. To accommodate wicks of different thickness the wheel f is yieldingly mounted, as by mounting its spindle d in inclined slots in the forks b, or within spiral springs k, Fig. 5, in recesses in the forks.
Patent GB-618949-A (GB)
Title: Improvements in methods of and apparatus for high vacuum distillation
IPC: B01D3/10
Filed: 1945-08-07
Abstract: <PICT:0618949/III/1> <PICT:0618949/III/2> p  The vapours from a still are rectified by passing them into the lower part of an upright, unobstructed column maintained at an absolute pressure of 1 mm. or less, abstracting heat from surface areas disposed throughout the length of the column, to cause repeated partial condensation of the vapour stream, and supplying heat to other surface areas, similarly disposed, to cause repeated partial vaporization of the reflux.  A still pot 10 (Fig. 1) heated electrically by heaters 12 and 13, is surmounted by a column 16.  The apparatus is evacuated by a mechanical vacuum pump 19 assisted, if necessary, by diffusion pump 20 which is protected by dry ice trap 21.  The column is provided with equally spaced coils 25 of resistance wire wrapped around the outside with interposed layers of asbestos paper 26 (see Fig. 2). Pressed against the walls of the column within are helices 27 of incorrodible wire corresponding with each heating coil. Alternating with these evaporation zones are condensation zones afforded by jackets 28 supplied with cooling fluid from a manifold 29.  The upper portion of the column is provided with a partial condensing zone 32 controlled by heating coil 33 and regulating means 35.  Above this is a total condensing zone maintained by cooling means 37, 38 and 40. Condensate collects in annular trough 45 and flows through line 46 into vacuum receiver 47.  When carrying out a distillation, the heaters 25 are turned on when the first condensation is observed at the base of the column.  As the vapour rises, the heaters are adjusted to a higher temperature, and when condensation is observed at the base of the partial condensing zone 32, the cooling means 28 are put into operation. Usually the partial condenser is adjusted to give total reflux for a while before any distillate is collected. When distillation is established, the degree of vaporization and condensation at each heating and cooling zone is made substantially equal, and this is most easily effected by adjusting the supply of cooling fluid so that the reflux streams entering the hot (or cold) zones are substantially equal in thickness.  For optimum separation, each hot zone should be held at the maximum temperature that the reflux material will stand without pyrolysis.  With a sufficiently large vaporization-condensation ratio, the column shown is equivalent to more than 18 plates.  The still may be used batchwise or continuously, side line 52 being used if necessary.  In a modification, the column has internal radial fins, and in another, the cross-section is not circular by narrow and oblong.  Several columns may be mounted in parallel from the same still pot.  The distillation of high melting paraffin waxes is referred to.
Patent GB-333697-A (GB)
Title: Process of producing films in natural colours by a single exposure
IPC: G03C7/26
Filed: 1929-07-02
Abstract: 333,697. Lierg, F. July 2, 1929. Colour photography.-Three inseparable layers of silver halide emulsion which may have intervening gelatin layers, are exposed and converted into colour component images, the gelatin in each layer being rendered insoluble after the production of the colour image so as to protect the layer from further action during the treatment of the images in the other layers. A film bearing on one side a blue-sensitive emulsion and on the other a red- and a green-sensitive emulsion is exposed at both sides through appropriate screens by an optical division of the image. The image in the blue-sensitive layer is then dyed yellow and protected by a coating of lacquer. The red and green layers are now dyed bluish-red, e.g. with rhodamine, and treated in a hardening bath, e.g. of chrome alum and formalin, so that when the film is treated with a bluish-green dye, the surface layer only is affected, being thus coloured pure blue. In a modification, the silver of the red and green layers, without fixing, is treated with a mordant for basic dyes, e.g. by bleaching with a solution of copper sulphate, ammonium thiocyanate and ammonium oxalate. The film is then exposed to light, developed, and the image bleached with a solution of chromic acid, copper sulphate and potassium bromide, which hardens the gelatin in contact with the image. The film is finally bathed in a solution of an acidic bluishgreen. dve, the surface layer only being affected. Specifications 113,617, 119,854, 245,198. 279,381, and 283,560 are referred to.