baber/WOPTO huggingface dataset:
Patent GB-938858-A (GB)
Title: Apparatus for making bags of paper or like on a bottom making cylinder
IPC: B31B29/00
Filed: 1959-12-03
Abstract: 938,858. Paper bag making machines. A. WINDMOLLER, and M. GENNERICH. Dec. 3, 1959 [Dec. 12, 1958; Dec. 24, 1958], No. 11777/63. Divided out of 938,857. Class 94(2). The subject-matter of this Specification is identical with that described in Specification 938,857 but the claims are concerned with the means for adjusting the bag-making tools to make bags of different widths. The right and left hand tools 209 situated at each side of the rotating bag-making cylinder 201 are supported on two carriers 210, one at each side of the cylinder, each mounted rotatably on a non-rotatable bush 216 internally threaded to engage threads 229 on the hubs of gear wheels 230. Springs 232 stretched between the carriers and the machine frame 205, 207 force the gear wheels 230 against collars 231 on the flanged bearings 206, 208. By turning a handle 235 the gear wheels 230 are rotated through gears 233 to adjust the spacing of the bag-forming tools, the threads in the bushes 216 being of opposite hands.
Patent GB-1184835-A (GB)
Title: Improvements in Delay Mechanisms for Camera Shutters
Inventor: HASSELBLAD FRITZ VICTOR
IPC: G03B9/64
Filed: 1967-03-14
Abstract: 1,184,835. Camera shutters. F.V. HASSELBLAD. March 14, 1967 [March 16, 1966], No. 11819/67. Heading G2A. A delay mechanism for determining the exposure time in camera shutters comprises a spring-driven rotatable delay element consisting of an eddy current disc disposed in a magnetic field which is variable whereby the resistance to rotation of the element may be varied. As shown, an arm 27 of a three-arm lever 21, 23, 27 is rotatably mounted on a shaft 4 which controls the operation of the camera shutter. On cocking the shutter, arm 27 is rotated clockwise against the force of a spring 22 whereby a toothed segment 5 having a slot 25 engaging a rod 24 on arm 23 is allowed to move under the action of spring 28; this rotation of segment 5 causes an eddy current disc 20 between two permanent magnets 15 and 16 to be rotated on a shaft 10 by gears 7, 8 and 9. On opening the shutter, arm 27 is released and rotated clockwise by spring 22 to its initial position in which it closes the shutter. The time taken by arm 27 to rotate to this position, and hence the exposure time, is controlled by the braking effect produced by the rotation of eddy disc 20 in the magnetic field of magnets 15 and 16, the strength of the field being varied by rotating magnet 16 relative to magnet 15 by a lever 19.
Patent GB-197821-A (GB)
Title: Improvements in or relating to sliding doors of show cases, cabinets and the like
IPC: E05D15/06
Filed: 1922-04-28
Abstract: 197,821. Templeman, S., and Co-operative Wholesale Society, Ltd. April 28, 1922. Rectilinear-motion bearings. -A bearing for a sliding door of a show-case &c. consists of a trough-shaped ball-carrier g<1> projecting through holes in the flanged channel member b and having balls engaging a metal runway k.
Patent GB-128048-A (GB)
Title: Means for Automatically Controlling the Carburettors of Internal Combustion Engines.
Inventor: HUDLASS FELIX WILLIAM
IPC: F02M7/16
Filed: 1918-07-22
Abstract: 128,048. Hudlass, F. W. July 22, 1918. Spray carburettors.-Consists in a fitting adapted to be readily inserted between the carburettor and the inlet pipe to permit of the screwed shank of the conical fuel needle valve being actuated by engine suction. The fuel orifice 4 is controlled by a conical valve 3, the shank 2 of which is screw-threaded at its upper end. An arm 21 is clamped to the shank 2, and is connected by a link 22 with a spring-loaded piston in a cylinder 9, a web 10 on which is screwed at 11 into a projection 15 of a flange 12 inserted between the carburettor outlet 5 and the induction pipe 6. The piston is normally forced out. wards by the spring, and the space behind it communicates with the induction passage through ducts 17, 18. Valves 7, 8 are placed at the air inlet and mixture outlet respectively.
Patent GB-182605-A (GB)
Title: Improvements in and relating to ingot moulds
IPC: B22D7/06
Filed: 1921-04-26
Abstract: 182,605. Fogarty, O. A., and Pennsylvania Mold & Iron Corporation. April 26, 1921. Moulds for casting ingots have a removable reversible bottom retained on a seating by a stepped keeper-plate. The bottom 5 has a groove 6 to facilitate removal, can be machined repeatedly on both faces, and is kept in position against an annular seating 5<a> by a keeper-plate 7 having a central hole and a series of stepped cam surfaces that engage pins 13. The base of the body 1 is formed into three legs. The mould is shown as provided with a sand portion 16 connected by a fire-clay ring 18 with the body in such manner as to avoid the production of fins on the ingots.
Patent GB-377280-A (GB)
Title: Improvements in or relating to wrapping-machines for caramels and like cut-up plastic material
IPC: B65B35/20
Filed: 1931-04-23
Abstract: 377,280. Moulding caramels in cutting and wrapping machines. ROSE, A. G. and ROSE BROS. (GAINSBOROUGH), Ltd., Albion Works, Gainsborough, Lincolnshire. April 23, 1931, No. 12007. [Class 87 (ii).] A caramel cutting and wrapping machine of the kind provided with a cutting knife for severing the caramels from a plastic bar, and with wrapping mechanism for encasing them, is fitted with a moulding-appliance between the cutting and wrapping mechanism for the accurate shaping and sizing of the cut portions. In the illustrated form the plastic bar is fed intermittently by rollers 10, Fig. 1, against a stop 11 and severed by a knife 12. The cut portion is pushed by a lever 13 into a trough 14 where it is advanced by the plunger 50 against the stop 34 forming the end of a boxshaped mould in which it is shaped and compressed. After pressing, fork-shaped movable side-pieces 35 of the mould are lowered to allow a lateral plunger 61 to eject the moulded pieces into the pockets of a wheel 76 and paper-wrap them on three sides during this process in known manner. The lever 13 is operated by an eccentric 26 and in addition to its reciprocating movement is lowered on the return stroke below the level of the trough 14 by the cam 22. The plunger 50 is operated through linkage from the cam 59, and the shaft 36 carrying the movable side-pieces 35 of the mould is operated from the cam 48. The ejecting-plunger 61 is reciprocated by a pin 67 engaging a face-cam 68 and straight-line motion is ensured by providing an arcuate guide 71 for its tail-end.
Patent GB-513870-A (GB)
Title: Coloured textile materials
IPC: D06P1/28
Filed: 1938-04-21
Abstract: 513,870. Dyeing textiles. HOPKINS, W. E., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 21,1938, No. 12037. [Class 15 (ii)] Vat dyes, dyeing with.-Coloured woven cellulosic textile materials carrying a permanent finish of an oxy-organo compound of cellulose are obtained by applying thereto simultaneously an alkali-soluble oxy-organo compound of cellulose and a sulphuric ester of a leuco vat dyestuff, both being dissolved in the same aqueous alkaline liquor, and converting the sulphuric ester into the corresponding insoluble vat dyestuff and the dissolved cellulose derivative into its undissolved form. Such conversions may be effected simultaneously by an acid oxidation treatment or the cellulose .derivative may be converted into its undissolved form, e.g. by treatment with a salt solution or with water, 'as described in Specification 457,031, prior to the development of the dyestuff. Specified alkali-soluble oxy-organo compounds of cellulose are simple or mixed alkyl or hydroxyalkyl ethers containing not more than one ether group per C6H10O5 unit of the cellulose, such as are obtainable, for example, by the processes of Specifications 166,767, 177,810, 231,807, [all in Class 2 (ii)], 374,964, 389,534, 392,206, 410,152, 410,153, 416,590, 469,901, and 470,926. In an example, dry bleached cotton cloth is padded cold with an aqueous solution containing sodium hydroxide, a glycol cellulose containing about one HO-C2H4 group for every four C6H10O5 units, the sodium salt of the sulphuric ester of leuco- Bz2:Bz2<1>-dimethoxydibenzanthrone and sodium nitrite and the cloth is passed through cold dilute sulphuric acid, rinsed, soaped at the boil, rinsed and dried to obtain a pale bright fast green dyeing with a permanent finish resistant to washing and wear.
Patent GB-397605-A (GB)
Title: Improvements relating to taps or cocks
IPC: F16K5/02
Filed: 1932-04-27
Abstract: 397,605. Plug cocks. EWARTS, Ltd. and SMITH, G. B., Burnt Tree Works, Dudley, Worcestershire. April 27, 1932, No. 12038. [Class 135.] A tap or cock, particularly for oil drums, comprises a ported cup-shaped body a fitted with a ported rotary cup-shaped plug b, the stub extension b<2> of which extends through an opening a<5> in the closed end of the body. A spring d disposed between the handle c and the body a maintains contact between the closure surfaces. A projection c<1> on the handle coacts with projections a<6> on the body to define the open and closed positions of the plug b.
Patent GB-343811-A (GB)
Title: Improvements in or relating to synchronising devices for use in talking film installations
IPC: G03B31/00
Filed: 1930-04-16
Abstract: 343,811. Maintaining defined speeds of motors. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13A, Emmasingel, Eindhoven, Holland. April 16, 1930, No. 12066. Convention date, May 11, 1929. [Class 38 (iii).] A motor 4 drives a shaft 8, which may carry a gramophone turntable 2, through shaft 3, which may drive a film projection apparatus 1, and an elastic coupling 5. Each shaft carries a collector 10, 11, having alternate conducting and insulating segments, the brushes 14, 15 being connected in shunt to the motor field resistance 16, so that angular displacement of the shafts causes a corrective variation in the speed of the motor 4.
Patent GB-521385-A (GB)
Title: Smoking pipe
IPC: A24F1/00
Filed: 1939-04-21
Abstract: 521,385. Tobacco pipes. MODINE, A. B. April 21, 1939, No. 12098. [Class 130] A pipe is provided with a thermostatically controlled air intake communicating with the duct in the stem. In one form, Figs. 2 and 3, the bowl 8 and mouthpiece 11 are connected by a stem 9 having an air-inlet port 23 controlled by a valve 24 carried by a bimetallic strip 25 riveted at 26 to the stem. The valve can be closed manually by pressure on the end of the bimetallic strip. The stem is formed with longitudinal corrugations 15 and fitted with an absorbent cartridge 18 of cotton or the like, encircled by a yoke 28 provided with a rod 29 for its manipulation. In a modification, Fig. 6, the air-inlet 32 is connected by a passage 31 with the smoke duct and the valve 24a is carried by a bimetallic strip 25a encircling the bowl 8a.
Patent GB-730830-A (GB)
Title: Improvements relating to the manufacture of knitted stockings
IPC: D04B9/46
Filed: 1953-05-01
Abstract: 730,830. Knitting. PARTHUM, R. May 1, 1953 [May 27, 1952], No. 12124/53. Drawings to Specification. Class 74 (2). A stocking has a barrier of non-run stitches formed by spread loops knitted to enclose partially or wholly the foot of the stocking to prevent faults in the foot portion extending into the leg.
Patent GB-878639-A (GB)
Title: Process for manufacturing microporous diaphragms for electrical accumulators
IPC: H01M50/489
Filed: 1958-04-17
Abstract: 878,639. Laminates and laminating; coating apparatus for webs and threads. VEDOVELLI, M. April 17, 1958 [April 20, 1957], No. 12229/58. Class 140. [Also in Group XXXVI] Microporous diaphragms for electric storage batteries are made by applying a thin sheet of paper, or paper and mineral fibres, to a sheet of glass, synthetic resin, or other fibres, or a fabric of such fibres, coated with a solution or suspension of a thermoplastic or thermosetting or other binder resin and heat-treating the laminated sheets. Suitable binders are polyvinyl chloride, polystyrene, rubber as latex, nitro-cellulose, and phenol and cresolformaldehyde resins. The binder may contain inert fillers such as mineral powders, barium sulphate, kaolin, bentonite, and wood flour, and may be applied to the fibrous layer alone or to that layer, and also in diluted form to the paper or like layer. Longitudinal ribs may be formed in the laminate or in the paper layer only, and in the latter case cords may be laid in the cavities formed by the ribs. The cords may comprise fibres of glass, asbestos, polyvinylchloride, polythene, nitro-cellulose, resinimpregnated cotton, rayon, rubber, polystyrene, or polyurethanes. Alternatively,. the paper layer may be laterally ribbed by passing between coacting grooved and ribbed rollers. Apparatus for carrying out the process comprises a roller T, Fig. 8, surmounted by a doctor blade R for applying the impregnant P, compression rollers F1, F2, a drying and curing chamber E, and infra-red heaters. The paper web from a roll C may be led around the roller T beneath the fibrous web V or may be applied to the latter at the rollers F1, F2. As shown, dilute impregnant is applied to the paper web by apparatus S, M 1 , M 2 . Parallel cords may be laid on the web V from spools B, the roller T then having peripheral grooves as in Fig. 9, the roller F1 having similar grooves. When the laminate has longitudinal ribs, the roller T is ribbed and the blade correspondingly notched, and the roller F2 has peripheral grooves.
Patent GB-997859-A (GB)
Title: Improvements in floats
Inventor: HANBURY PATRICK MAURICE
IPC: B29C49/18
Filed: 1961-04-06
Abstract: 997,859. Moulding floats. PERSHORE MOULDINGS Ltd. April 4, 1962 [April 6, 1961; Oct. 26, 1961], Nos. 12325/61 and 38299/61. Heading B5A. [Also in Division A1. A fishing float is moulded by expanding a body of heated thermoplastic resin in a mould by means of blow moulding. A tube of thermoplastic resin 26 is extruded with its outer section circular and its inner section elliptical over an air pipe 23 which also forms a mandrel for a bore 4. The mould halves 18 are closed over the tube, sealing the ends to form a parison. Air is introduced just before the mould closes to effect a preliminary expansion of the parison before the final expansion to the mould shape. The bore 4 is later hermetically sealed by collapsing it or plugging it. The mould halves 18 have a subordinate cavity 20 which forms an attachment element 7 and have grooves 19 and recessed portions 22 which accommodate excess thermoplastic material during the moulding to form flash which is broken off the finished float.
Patent GB-944891-A (GB)
Title: Improvements in or relating to looms
IPC: D03C1/22
Filed: 1962-03-30
Abstract: 944 891. Loom shedding mechanisms. RUTI MACHINERY WORKS Ltd. March 30, 1962 [April 26, 1961], No. 12337/62. Heading D1E. Heald frames 13, moved by motors 26, are connected by rods 12 to pattern needles 11 and control mechanisms 15,16,17 which actuate the motors 26. The control mechanism may be photoelectric 24, 25 operating through holes 18, 19, 20 in plates 15,16,17 or may be a rod which penetrates the holes to operate a switch. In Fig. 1, with the healds in upper shed, a hole 10a under the needle 11 will cause it to drop aligning the holes 18,19, 20 so that cell 24, 25 operates the motor to lower the heald. Lowering the heald causes further downwards movement of the plate 15 to misalign the holes 18,19, 20. Holes 10a in the card 10 thereafter cause no movement of the heald. To raise the healds (Fig. 3) a blank in the card causes the plate 15 to rise and align the holes 18,19, 20 to raise the healds, which raising misaligns the holes to the Fig. 1 position.
Patent GB-813793-A (GB)
Title: Improvements in and relating to the polymerisation of unsaturated hydrocarbons
Inventor: REED HUGH WILMA BOULTON
IPC: C08F10/00
Filed: 1956-04-23
Abstract: A catalyst for use in polymerizing olefins (see Group IV (a)) comprises an oxide of a metal of Group VIa with an alkali metal, for example in 0.001 to 10 per cent by weight, deposited thereon from the vapour phase, e.g. sodium deposited on the oxide by heating to about 425 DEG  C. at 0.1 mm. pressure of nitrogen and then passing the metal vapour over the oxide.  The oxides preferred are partially reduced molybdenum trioxide, and chromium oxides (desirably activated by dry oxygen and/or containing strontium oxide).  A catalyst support, such as gamma-alumina, titania, zirconia, silica or silica/alumina, may also be present.  In the Provisional Specification tungsten and uranium oxides are also specified. Specifications 748,634 and 790,195 are referred to.ALSO:Olefins, such as ethylene and propylene, are polymerized by contact with a catalyst comprising an oxide of a metal of Group VIa, with an alkali metal, for example in an amount of 0.001 to 10 per cent by weight, deposited thereon from the vapour phase, e.g. sodium deposited on the oxide by heating to about 425 DEG  C. at 0.1 mm. pressure of nitrogen and then passing the metal vapour over the oxide.  The oxides preferred are partially reduced molybdenum trioxide, and chromium oxides (desirably activated by dry oxygen and/or containing strontium oxide).  A catalyst support, such as gamma-alumina, titania, zirconia, silica or silica/alumina, may also be used.  Inert solvents, which may be used in the polymerization process, are xylene and petroleum ether.  The examples illustrate the continuous addition of ethylene during polymerization and a continuous flow process.  The Provisional Specification also refers to the polymerization of alkyl, alkenyl and aryl substituted ethylenes, of higher alkenes, of styrene and of butadiene.  The use of tungsten and uranium oxides is also specified. Specifications 748,634 and 790,195 are referred to.
Patent GB-677982-A (GB)
Title: Improvements in or relating to telescopes
IPC: G02B23/00
Filed: 1946-04-24
Abstract: 677,982. Telescope systems. NAAMLOOZE VENNOOTSCHAP OPTISCHE INDUSTRIE DE OUDE DELFT. April 24, 1946 [Aug. 8, 1945], No. 12374/46. Class 97 (i). A telescope comprises a concave spherical front-surface mirror (the main mirror) the focal length of which is at the most four times its free aperture, an eye-piece arranged behind the main mirror and receiving light passing through a central aperture therein, a spherical or flat auxiliary mirror reflecting to the eye-piece light coming from the main mirror, a negative meniscus lens having spherical outer surfaces and arranged to correct the spherical aberration of the mirror, and, arranged in the space between the main and auxiliary mirrors one or more tubular diaphragms intercepting substantially all the light rays entering the telescope which are not reflected at the two mirrors. As shown in Fig. 1, the corrector comprises a meniscus lens c having a central aperture d containing a convex auxiliary mirror e which reflects light from the concave main mirror b into the eye-piece i via a Porro prism system in a housing h. A diaphragm tube f prevents direct light from reaching the eye-piece. Fig. 4 shows a concave corrector comprising lenses IV, V, part of the latter being aluminized to form the auxiliary mirror m. Alternatively a plane mirror may be used, the tube n then housing an inverting lens system. In a further modification the auxiliary mirror is convex and a further meniscus correcting lens, concave to the incident light may be located in the diaphragm tube. To form a double telescope having two objectives of different focal length associated alternatively with the same eyepiece the correcting meniscus A, Fig. 7, has a central aperture B containing a short-focus objective C in axial alignment with the eyepiece, the auxiliary mirror D being carried on a shaft E and rotatable by a Bowden cable to the dotted position to allow the objective C to be used.
Patent GB-882360-A (GB)
Title: Rapidly hardenable compositions of epoxide-compounds and complexes of friedel-craft's catalysts
IPC: C08G59/24
Filed: 1958-04-18
Abstract: Compounds having a 1:2-epoxy equivalency greater than 1,0 may be hardened with complexes of (i) Friedel-Crafts metal halides or BF3 and (ii) a dihydric or polyhydric alcohol or a monoether of such an alcohol, said dihydric or polyhydric alcohol containing at most 8C. Polyepoxides specified are polyglycidyl ethers of glycols, glycerine, 2,4,6-hexanetriol, resorcinol, hydroquinone, bisphenol A, or phenol-formaldehyde condensation products; polyglycidyl esters of phthalic and terephthalic acid; and butadiene dioxide.  Hardeners specified are (i) BF3 and the chlorides of Sb, Sn, Al, Fe and Zn; and (ii) a large number of dihydric alcohols of which triethylene glycol is preferred; glycerol and hexanetriol-2,4,6; and C1-4 monoethers of dihydric alcohols, of which ethylene glycol monomethyl ether is preferred.  Optional additives include fillers (e.g. silica, quartz and kaolin) and reactive solvents, e.g. an excess of (ii).  Uses: Dental fillings, crowns and prostheses.  Tin foil cups. Enclosures for the end of cables.  Joining metals (e.g. an alloy of Al, Mg and Si).  Coating metals, e.g. Al, Fe.  Specifications 806,447 and 810,412 are referred to.
Patent GB-109289-A (GB)
Title: New or Improved Method of Cooling Commutators of Electrical Machines.
IPC: H02K9/28
Filed: 1916-09-02
Abstract: 109,289. Thomas Transmission, Ltd., and Thomas, J. G. P. Sept. 2, 1916. Commutators are formed with internal tailpieces or extensions 2 integral with the bars and arranged alternately at opposite ends of the commutator so as to form zigzag passages for the cooling-air. The armature spider may be constructed to act as a fan to draw air through the commutator; or a separate fan may be provided. Each commutator bar may be divided into halves 5, 6 and each part cut away so as to form a radial passage 7 when the parts are assembled. Projections of metal may be left in these slots to form stiffening-bridges.
Patent GB-432598-A (GB)
Title: Improvements in sand blast machinery
IPC: B24C9/00
Filed: 1934-04-26
Abstract: 432,598. Sand-blast. ST. GEORGE'S ENGINEERS, Ltd., and WILSON, F. W., Ordsall Lane, Trafford Bridge, Salford, Lancashire. April 26, 1934, No. 12529. [Class 60] In sand-blast apparatus, sand is delivered from a hopper A<1> through an aperture a to a mixing tube B situated in a pressure chamber A In order that the tube B may be removed readily in case of blocking thereof the chamber A has therein an aperture d reinforced by a thick disc D welded to the wall A<2> of the chamber and provided with a central aperture d<1> through which the tube B can pass, the flange b of the tube being secured to the disc D by bolts or studs. The inner end of the tube is supported by a bridle E bolted to the hopper, a flat part b<1> of the tube B being held against the bottom of the hopper by screws b<2> or by a spring. A sliding valve F is fitted between the base of the hopper and the tube B.
Patent GB-398586-A (GB)
Title: Improvements in vapour engines
IPC: C09K5/12
Filed: 1932-05-02
Abstract: Pipes of a condenser system may be housed in an alloy of 36 parts of tin and 64 parts of lead.