baber/WOPTO huggingface dataset:
Patent GB-1311731-A (GB)
Title: Method and apparatus for producing yarns by the open-end spinning system
IPC: D01H4/34
Filed: 1970-04-10
Abstract: 1311731 Open end spinning TORAY INDUSTRIES Inc 10 April 1970 [14 April 1969 17 Sept 969 2 Feb 1970 (2)] 17206/70 Heading DID The fibres being fed to an open end spinning rotor are pulled out and separated by a pair of rollers which impart to the fibres an inertia force which is of itself sufficient to eject the fibres into the rotor. As shown, sliver 1 is opened by the very high draft between rollers 2, 4 and the fibres are ejected directly into the rotor 5. In Fig. 2 (not shown), the fibres are drafted using aprons (13). The front rollers (6) are fitted with casings and there is a deflector for the fibre stream mounted stationarily within the rotor. In Figs. 3 to 5 (not shown), the front rollers 4 are positioned at a greater distance from the rotor than the length of fibres being spun and the opened fibres and compressed air are passed through a guide tube (14) of length less than the fibre length. In Fig. 6-8 (not shown) the front drafting rollers (4) have grooves bounding the fibre engaging area thereof and compressed air is fed into these grooves to effect control of the drafted fibres.
Patent GB-267873-A (GB)
Title: Improvements in and relating to cam devices
IPC: D06J1/06
Filed: 1926-07-10
Abstract: 267,873. Ezbelent, G., and Ezbelent, R. March 17, 1926, [Convention date]. Pleating-machines.-A cam for use in pleating and like machines such as described in Specifications 254,245 and 258,190, comprises a disc 1, 2 carrying a series of peripheral rollers 4 each mounted loosely upon an eccentric part a of a pin 3 which is adapted to be slid axially in opposition to a spring 11 to disengage a locking pin 8 and then to be rotated to project or withdraw the roller 4 in relation to the periphery of the disc. The coacting lever 5 carries a similarly eccentrically mounted roller 7. In this case, however, mutually perpendicular locking grooves 10, 9<a> are provided for the pin 8<a> to enable an intermediate adjustment to be effected.
Patent GB-1527446-A (GB)
Title: Polymerization catalyst and method
IPC: C08F10/00
Filed: 1977-04-26
Abstract: 1527446 Supported chromium catalyst for olefine polymerization ACC CHEMICAL CO and SKELLY CHEMICAL CO 26 April 1977 [24 June 1976] 17348/77 Heading C3P [Also in Division B1] Polymers of 1-olefins of 2-8 carbon atoms are made by polymerization with a catalyst prepared by dispersing on an inorganic (Si, Al, Zr, Ti, Th or Mg) oxide support a reaction product of a chromium carboxylate with a specified organic diamine, polyamine or heterocyclic nitrogen base and activating the resulting mixture at 600-2000 F. in a non-oxidizing atmosphere (see Division B1). The catalyst exemplified is prepared from SiO 2  and the reaction product of chromium (III) formate, acetate, or pentanoate, and ethylene diamine, diamonopropane, diamino toluene aniline, diethylene triamine, bipyridine, or dipyridyl amine and is used for polymerization of ethylene.
Patent GB-464064-A (GB)
Title: Back-coupled circuit for cathode-ray tube, more especially for television purposes
IPC: H04N5/68
Filed: 1936-06-22
Abstract: 464,064. Television. MICHAELIS, E. June 22, 1936, No. 17356. Convention date, June 22, 1935. [Classes 40 (iii) and 40 (v)] Reaction is applied from the anode circuit of a cathode ray tube to its control grid. The signals applied at F, Fig. 1, to the control grid D of a cathode ray tube produce corresponding potential differences across a resistance in the anode - cathode circuit. These potential differences are applied to a valve K whose output is coupled over resistance H to the grid D. The grid circuit may be transformer coupled to the anode-cathode circuit, Fig. 2 (not shown). In Fig. 3, the potentials developed across the high resistance J, in dependence on the control potentials, modify the potential difference between the anode and cathode to reinforce the effect of the control potentials. The resistance J may be replaced by a choke or may be bridged by a condenser. In Fig. 4, the current from the fluorescent screen T flows in resistance J, from which tappings are taken to the control electrode D and the cathode E, so as to vary the potential difference between electrode D and cathode E in accordance with the control signals. Specification 403,876, is referred to.
Patent GB-163927-A (GB)
Title: Improvements in machines for cutting precious stones and like materials
IPC: B28D5/02
Filed: 1920-06-25
Abstract: 163,927. White, A. E., (Toledo Scale Co.). June 25, 1920. Disc apparatus; gems, treating; gauges.-Agate blocks for bearings, or other hard materials, are cut by soft-iron discs 10 rotating in a vessel of liquid containing grit, such as carborundum and emery powder, in suspension. The block to be cut is cemented to a carrier 16 adjustably secured to the end of an arm 15 pivoted on the side of the vessel and pressed towards the cutting-discs by a counterweight 20. The depth of cut is limited by stops 23, and pointers 26 are provided working over scales 27. To prevent damage to the cutters by broken pieces of agate, guards 28 comprising members 29 projecting between adjacent discs are arranged as shown.
Patent GB-301438-A (GB)
Title: Improvements in or relating to means for regulating the voltage of electrical transformers
IPC: H01F29/04
Filed: 1927-06-30
Abstract: 301,438. British Electric Transformer Co., Ltd., and Whish, A. C. June 30, 1927. Regulating tr a n sformers.-The voltage of a transformer is regulated by means of a tapping switch having a pair of movable contacts 1, 2 connected through separate o i l switches 5, 6 to opposite ends of an auto-transformer or choke 7 the mid-point of which is connected to the external circuit either directly or through a further portion of the main winding B. In effecting regulation from the tap C to the tap C', current through the contact 2 is first interrupted by opening the oil switch 6 thereby diverting the current through the contact 1, oil switch 5, and the upper half of the auto-transformer winding. The contacts 1, 2 may then be shifted to the dotted position without causing sparking in the main transformer tank. The oil switch 6 is then reclosed placing the winding 7 in parallel with the section C, C<1>, and affording a voltage corresponding to a virtual tapping between the tappings C, C<1>. Further adjustment of voltage is effected by movement of the contacts 1, 2 so that both engage the tapping C<1> after temporarily diverting current through the contact 2, oil switch 6, and the lower half of the winding 7 by temporarily opening the oil switch 5. Drop of voltage during opening of the oil switches 5. 6 due to the inductance of the winding 7 may be minimized by providing the oil switches 5, 6 with back contacts connected to the corresponding halves of the winding 7 so that as each switch is opened, the half winding removed from the circuit is short-circuited. The tapping switches may be either of the sliding or rotary type and may be arranged either inside or outside the main transformer tank which may also house the auto-transformer.
Patent GB-1009436-A (GB)
Title: Tobacco processing and resulting product
IPC: A24B15/12
Filed: 1962-05-07
Abstract: 1,009,436. Tobacco. GENERAL CIGAR CO. Inc. May 7, 1962 [May 9, 1961], No. 17463/62. Heading A2C. Chopped tobacco in aqueous suspension is homogenized by heating to a temperature of at least 265F. at a pressure of at least 70 p.s.i.g. in contact with oxygen and the resulting slurry is either dried and formed into shreds, rods, filaments or sheets, or it is used as a binding agent for finely divided tobacco. Preferably the pressure is at least 300 p.s.i.g. and the temperature 285C. to 320C. The tobacco may be heated for from 10-40 minutes in contact with 95% by volume of oxygen. When made into sheets the slurry is spread on a steel belt, dried, reordered, and wound on a roll. Humectants and plasticizers such as glycerol, sorbitol and various glycols may be added to the slurry or to the finished tobacco sheet. Quantitative process examples are given. Specifications 570,265, 753,965, and U.S.A. Specifications 2,155,453, 2,867,220 are referred to.
Patent GB-497674-A (GB)
Title: Improvements in carburettors for internal-combustion engines
IPC: F02M21/00
Filed: 1937-06-23
Abstract: 497,674. Spray carburetters. BRISTOL AEROPLANE CO., Ltd., FEDDEN, A. H. R., and CLINCH, A. C. June 23, 1937, No. 17517. [Class 7 (iii)] A valve, which is opened by the operation of the engine, prevents delivery of fuel from a throttle-actuated accelerator pump to the induction system, when the engine is not running. During operation of the engine, the lubricating-oil pressure acting on a spring- pressed piston 46 moves a control valve, formed by a stem 41 having enlarged parts 44, 45 into the position shown in Fig. 1, to permit the fuel discharged by the pump piston 10 to be delivered through a conduit 30 to a fuel nozzle 32. When the engine stops, the oil pressure falls and the spring 50 moves the piston 46 to the left until it engages an abutment 51. In this position, the enlarged part 45 closes the conduit 30, and the enlarged part 44 uncovers a conduit 40 connected to the float chamber 15 so that if the throttle is now opened, the fuel discharged by the pump is returned to the float chamber. The piston 46 may be replaced by a diaphragm and may be operated by the suction, or in a supercharged engine by the pressure, in the induction system. The Provisional Specification states that the control valve may be disposed between the float chamber and the pump.
Patent GB-1070610-A (GB)
Title: Separators
IPC: B01D45/14
Filed: 1966-04-21
Abstract: 1,070,610. Separating particles from gases; centrifugal separators. DOUGLAS AIRCRAFT CO. Inc. April 21, 1966 [May 28, 1965], No. 17556/66. Headings BIT and B2P. [Also in Division Fl] Solid or liquid particles are separated from a gas by passing the gas through a grid consisting of spaced, parallel rods 72 which are each rotated at high speed in the same direction, so that a particle tending to pass between two rods is caught by the rotating boundary layer round one rod and thereby moved by centrifugal force into the oppositely moving boundary layer round the adjacent rod (Fig. 7, not shown) and particles are thus returned to the upstream side of the grid. The grid may be planar or curved and in Fig. 2 comprises an annular array of rods 72. Air enters the interior space by a tangential inlet (24), and the rotation of the rods induces further rotary movement of the air within the rod assembly, separated particles falling into a removable container 30. The air flow is induced by an upstream pressure source or by the pumping action of the rods. Compressed air, delivered to annular chambers 48, 66, passes along channels in fixed supports (76), located coaxially within hollow rods 72, and is used to rotate rods 72 and as a lubricant separating relatively moving surfaces (Figs. 3-6, not shown). In an example rods 72 are 7/8 inches in diameter, spaced 0.040 inches apart and rotate at 75,000 r.p.m., and bearing surfaces of supports (76) and rods 72 have 0.0001 inches clearance. Rods 72 could be turned by a belt or gear drive.
Patent GB-260200-A (GB)
Title: Improved sheath or cover of transparent material for garden or similar labels
IPC: G09F3/20
Filed: 1926-07-14
Abstract: 260,200. Beales, H. B. July 14,1926. Label holders.-A garden label B - of the rigid type, adapted for insertion in the ground adjacent a plant &c., is fitted with a covering sheath A of transparent material such as celluloid to protect writing on the label.
Patent GB-817543-A (GB)
Title: Improvements in or relating to pressure diecasting
IPC: B22D17/32
Filed: 1956-06-07
Abstract: 817,543. Casting- machines. REGIE NATIONALE DES USINES RENAULT. June 7, 1956 [June 23, 1955], No. 17673/56. Class 83 (1). [Also in Group XXIX] In a method of pressure die-casting mouldable material, a low or medium-pressure fluid is used for opening and closing the mould and for operating a high-pressure pump which delivers fluid at high pressure to an accumulator, which supplies the necessary pressure for injection of the material into the mould. Compressed air is fed from a distributer 2, Fig. 1, through pipe 4 to cylinder 5 to effect mould closing by the crosshead 7. Pistons 8, 9 connected to the crosshead draw in oil from a reservoir 12 through a pipe 13 and non-return valve 14, and drive oil at high pressure through pipes 15, 18, valve 23 and pipes 19-21 into an accumulator 22, whose pressure is set by a pressure-relief valve 25. Operation of an electromagnetic valve and distribuer unit 27, 28, affords a passage for high-pressure oil from the accumulator to the injection-cylinder 29. Reverse operation of the unit 27, 28 restores the machine to its initial position. In a modification, Fig. 2, a pump 34 forces oil from the reservoir 12 at medium pressure into an accumulator 36, the supply of oil therefrom to the mould-closing cylinder, and the pistons 47, 48 attached to the crosshead, being controlled by an electromagnetic valve and distributer 39. A second electromagnetic valve and distributer 57 controls the supply of high-pressure oil from the second accumulator 70 to the injection-cylinder 74. In a further modification, Fig. 3 (not shown), medium-pressure and high-pressure accumulators are provided and controlled in such a manner that the injection-stage commences with medium-pressure fluid, and after actuation of a timing-device, is completed with high-pressure fluid.
Patent GB-879102-A (GB)
Title: Improvements in or relating to cyclopentanophenanthrene compounds and process for the manufacture thereof
IPC: C07J1/00
Filed: 1957-12-16
Abstract: The invention comprises 2-hydroxymethylene-19-nor-testosterone, its 17a -methyl and ethyl analogues, and a process for the preparation of 2-hydroxymethylene-19-nor-testosterone and its 17a -alkyl derivatives (the alkyl group containing less than seven carbon atoms) by reacting the corresponding 2-unsubstituted steroid with ethyl formate in the presence of sodium hydride, preferably in an inert organic solvent, e.g. benzene, and under an inert atmosphere, e.g. nitrogen.  An example details the preparation of 2-hydroxymethylene-19-nortestosterone.  Specifications 853,291, 854,407 and 879,101 also are referred to.
Patent GB-274449-A (GB)
Title: An improved cutter or tool carrier for earth boring drills and the like
IPC: E21B10/32
Filed: 1927-07-04
Abstract: 274,449. Grant, J. July 14, 1926, [Convention date]. Borehole apparatus.-An underreamer for use in earth boring comprises a mandrel provided with pairs of excentric parts 32, 33, and 34, 35 diametrically opposed, toothed rolling cutters 44, 45, separated by a spacer 46, being pressed upwardly by a spring 42 to take up their working position on the excentric parts; after pushing the rolling cutters downwardly against the spring so as to clear the excentric parts, they may be moved to a position concentric with the drill rods for passage through a well &c. casing. In a modification, only one rolling cutter is provided.
Patent GB-1415927-A (GB)
Title: Bagpipes
IPC: G10D7/06
Filed: 1973-04-13
Abstract: 1415927 Bagpipes J MACKINNON 1 May 1974 [13 April 1973] 17787/73 Heading G5J Bagpipes are blown by an electric motor and compressor which supply compressed air to the airbag which drives the usual drones and chanter via plastics stochs. The air pressure with the bag is kept below a chosen limit by an adjustable pressure sensitive valve linking the inside of the bag to the atmosphere. Preferably the airbag is made of rubber or plastics and may have the compressor and motor mounted inside by a strap on the bottom, being reached when needed through a sealable access hole. The motor is supplied via a cable passing through the wall of the airbag, possibly by a socket, and a supply switch can be footoperated or mounted on the bag for arm operation. A dummy blow pipe may be attached and may have the switch upon it. A rubber or plastics sleeve may be slideably mounted on the chanter to cover-up several holes thus freeing a hand to assist in tuning the drones. Drones and chanter may be detachably fixed to the airbag.
Patent GB-1509355-A (GB)
Title: Coagulation forceps
IPC: A61B17/42
Filed: 1976-04-30
Abstract: 1509355 Coagulating devices RICHARD WOLF GmbH 30 April 1976 [3 May 1975 7 June 1975] 17803/76 Heading A5R A bipolar high - frequency coagulation forceps, Fig. 1, for the coagulation of the fallopian tubes comprises two current conductors 2, 3 affording a pair of resiliently spreading forceps arms 6, an actuating sleeve 13 for opening and closing said arms, the portons of each forceps arm extending distally of its free end having insulation 4, 5 and an outwardly convex curved portion 6a for contact with sleeve 13 to facilitate opening and closing of arms 6, an uninsulated outwardly convex curved portion 7 for clamping around a fallopion tube and a straight uninsulated portion 8 for compressing the mescsalpinx. The conductors 2, 3 are mounted in a bushing tube 1 which extends through sleeve 13. A scissors grip operating handle 15 has one limb 14a secured to sleeve 13 by means of a bush 33 and retainer 34. The other limb 14b of the scissors grip is connected to an outer support barrel 17 by means of a pin 20 and to bushing tube 1 by means of a strut 21 extending longitudinally between pin 20 and a cylindrical housing 23 which includes a movable plunger 24 having protrusions 29 for engaging recesses 30 in bushing tube 1; whereby pressure on button 24a of plunger 24 disengages protrusions 28 from recesses 30 to allow removal of the bushing tube 1 from the sleeve 13 for cleaning or sterilization. A plug 9 and plug bushing 10 are provided for connection of an electrical source (not shown) to a respective conduotor 2 or 3. In an alternative embodiment, Fig. 6, the end portion 8 of one of the forceps arms 6 is provided with a bent - over portion 8a to prevent a fallopian tube from slipping out when gripped for coagulation.
Patent GB-484542-A (GB)
Title: An improved method of and means for storing merchandise in ware-rooms and the like
IPC: A47F10/00
Filed: 1937-06-26
Abstract: 484,542. Handling and storing vehicles. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., and FOULKES, T. E. June 26, 1937, No. 17841. [Class 78 (iv)] [Also in Group X] In storage means in which containers are arranged in close parallel rows along which they are movable, the front rows or rows having a gap whereby access can be obtained to any of the containers in the rear rows by sliding the front containers, a major space b is provided in front of the rows A .. F, into which containers h from full rows, having no gap, can be transferred to form the required gap. The containers may be wheeled vehicles running on parallel rails d, and the transference may be effected either by providing cross-rails e at one or more positions, with turn-tables g, or by providing curved switchover rails. A straight cross-over rail may alternatively lead into the space b. The containers may swing with the turn-tables or with the curved switch-over rails, or may be carried on bogies having swivel wheels whereby the containers always face in the same direction. Manual or power means may be employed for manipulation, and in the latter case the containers may carry motors. Specification 470,516 is referred to.
Patent GB-689227-A (GB)
Title: Improvements in or relating to arc-chutes in electric circuit interrupters
IPC: H01H9/34
Filed: 1951-07-27
Abstract: 689,227. Arc-rupturing in switches. ALLIS-CHALMERS MANUFACTURING CO. July 27, 1951 [Sept. 20, 1950], No. 17844/51. Class 38(v) A switch has an arc chute 15 with a plurality of spaced insulating plates 27 ... 29, the plates being slotted at 26 to form an arc passage and some of the plates having a plurality of irregularly spaced apertures to provide auxiliary arc passages to assist in extinguishing the arc. The apertures in each apertured plate 27, 28 are placed alternately on either side of the axis of symmetry of the slot and converge to a point, so that when the arc leaves the slotted arc passage 26 its length is first increased and then progressively reduced as the arc moves up through the chute. The plates 28 are mirror images of the plates 27 so that the arc sections passing through the apertures follow a zig-zag path, and the plates 29 have no apertures but a longer slot 26. The arc-chute 15 contains groups of plates, indicated at 1 ... 4, Fig. 1, and each group may contain the plates 27 ... 29 arranged in the sequence shown in Fig. 9, though other sequences are shown and described. The groups of plates may be mounted so as to leave an exhaust passage 30 extending through the chute and the individual plates held in spaced relationship by separators (not shown) of asbestos rope packing coated with cement to protect it from the arc and to unite the plates into stacks.
Patent GB-934556-A (GB)
Title: Improvements in or relating to temperature-responsive devices
Inventor: MELLIN KENNETH ROLAND
IPC: G01K5/16
Filed: 1961-05-16
Abstract: 934,556. Temperature alarms. ROLLSROYCE Ltd. May 16, 1962 [May 16, 1961], No. 17881/61. Class 118. A temperature-responsive device, particularly for operating an alarm when the fuel temperature in an aircraft drops too low, comprises a mercury thermometer switch 4 connected between the base and emitter of a transistor 3, the arrangement being that as long as the temperature is above a certain level the mercury will bridge contacts 8, 9 and. the emitter and base will be at the same potential and the transistor therefore non-conducting, but when the temperature falls below the level, switch 4 opens, transistor 3 becomes conductive and warning lamp 1 lights up. Another embodiment uses a PNP transistor (Fig. 3, not shown), while in a further embodiment (Fig. 4, not shown) the lamp is also shunted by a resistor.
Patent GB-107723-A (GB)
Title: Improvements in Smoking Pipes.
Inventor: IRVING JAMES ALBERT
IPC: A24F1/00
Filed: 1916-12-14
Abstract: 107,723. Irving, J. A. Dec. 14, 1916. Tobacco pipes.-The bowl 1 is formed with an inclined contracted lighting aperture 3 and tapered chamber 2 into which cartridges or charges of tobacco are fed by a plunger stem 4, formed with radial circumferential, and axial grooves or passages 7, 9, 11 for the smoke.
Patent GB-1534370-A (GB)
Title: Waterborne vessel
IPC: B63B25/00
Filed: 1976-08-25
Abstract: 1534370 Barge carrying ship WHARTON SHIPPING CORP 25 Aug 1976 18049/78 Divided out of 1534369 Heading B7A The subject matter of this Specification is substantially the same as that described in the Specification but the claims relate to details of the means for releasably locking the barges in place.
Patent GB-728877-A (GB)
Title: Article burnishing machine and method
IPC: B24B21/00
Filed: 1953-06-30
Abstract: 728,877. Endless conveyers. GERITYMICHIGAN CORPORATION. June 30, 1953 [May 20, 1953], No. 18085/53. Class 78 (1). [Also in Group XXIII] An endless chain conveyer 3, Fig. 1, for a burnishing machine (see Group XXIII) comprises pairs of vertically-spaced links 16, 17, Fig. 5, connected by pivot bolts 18, Fig. 7, provided with gaskets 22 to protect the link joints from abrasive material. The bolts are secured by nuts 19 and stud nuts 20, the latter serving to engage sockets 44, 45, Fig. 6, on carrying plates 40 to which the articles A to be burnished are clamped. Each carrying plate may extend over one or more pairs of links and the socket 44 is elongated to prevent binding when the conveyer changes direction. The conveyer is mounted on guide wheels 25, 26 having notches 28 to receive the link pivots and is driven by a motor 30, Fig. 2, through a belt drive, a variable speed gear 31, a reducing gear 32 and a pinion 35 meshing with an internal gear on the upper left-hand wheel 25, Fig. 1. A handwheel 38 having a shaft in screwthreaded engagement with the motor 30 enables the latter to be adjusted in a guide 37 to tension the belt drive. The conveyer traverses a tunnel 14 in which the articles A are washed by spraying and a burnishing compartment 4 containing abrasive matter suspended in liquid and provided with a series of rolls 47 which prevent tilting of the carrier plates 40 while they are in contact with burnishing heads B.