baber/WOPTO huggingface dataset:
Patent GB-634171-A (GB)
Title: Improvements in rotary electric switches
IPC: H01H19/58
Filed: 1946-11-18
Abstract: 634,171. Mechanical switches without quick action. GRIGSBY-ALLISON CO., Inc. Nov. 18, 1946, No. 34105. Convention date, Dec. 6, 1945. [Class 38 (v)] A rotary switch suitable for radio receivers comprises an insulating plate 30 supporting circularly-disposed contacts 33 and segmental contacts 37 which co-operate with resilient contacts 50, 51 mounted on a square insulating rotor 40 slidable on the flattened end 12 of a shaft 10 supported in a bush 14. Axial movement of the shaft is limited by a lock-washer 19 positioned in a groove 18 in the shaft, and by a spring disc 20 staked to it and having a projection 22 engaging positioning detents 23 on a front plate 13. The latter has stops 24, 25, Fig. 6, engaging a tail of the disc 20 to limit the shaft rotation, and protuberances 17 engage flats 16 on the bush 14 to prevent its rotation in the front plate 13. The resilient contacts 50, 51 are located by shaped recesses in the corners of the rotor, Fig. 7, and have pivotal movement about their inner ends 44 limited by projections 49 on a tongue of the contacts 51 which slides between edges 45, 46 of the recesses. The contacts 33, Fig. 11, have shoulders 34 and a tapered contact shank which is forced into an elliptical opening 32 in the rear plate 30, the leading corners 35 of the shank then being staked over. In a modification, (Figs. 14, 15, not shown), the front plate encloses the switch.
Patent GB-1015297-A (GB)
Title: Apparatus for heating hair clamps
IPC: H01B7/20
Filed: 1964-08-20
Abstract: 1,015,297. Hair-waving appliances. INDUSTRIELE ONDERNEMING W. H. BRASKAMP N.V. Aug. 20, 1964 [Oct. 10, 1963], No. 34105/64. Heading A4V. [Also in Division F4] A device for preheating hair curl clamps 13 by circulating hot air, comprises tubes 6 on which the clamps are placed for heating and which are arranged in a ring with their ends opening into an upper chamber 9 and into a lower chamber 3, and a larger central tube 7 also opening into both chambers and enclosing an electric heating coil 7. An electric motor 2 in the base 1 drives a fan 5 in the chamber 3 which circulates air downwards in the tube 7, where it is heated, and upwards in the tubes 6 to heat the walls thereof. The ends of the tubes are rubber-sealed to the plates 4, 10 and a thermostat 12 and switch 14 are provided.
Patent GB-892151-A (GB)
Title: Apparatus for burning liquid or gaseous fuels on the recirculation principle
IPC: F23D11/00
Filed: 1960-10-05
Abstract: 892,151. Burners. HOLTBACK, B. R. Oct. 5, 1960, No. 34149/60. Class 75(1) A burner for liquid or gaseous fuel comprises a cylindrical head 5 with a fuel nozzle 7 and a frusto-conical shield 8, a sleeve 4 surrounding the head 5 and having a frusto-conical shield 11, and a fan 2 supplying air to the annular space between the head 5 and the sleeve 4, means being provided for adjusting the space between the frustoconical shields 8, 11. The sleeve 4 may be slidable in or screwed into the outlet neck 3 of the fan housing. The head 5 is secured to the fuel pipe 6 which extends through the rear side of the fan housing and is adjustably clamped thereto by two nuts 15, 16 on the fuel pipe. The head 5 has a second frusto-conical shield 9 provided with holes 10 and air enters the head 5 through openings (not shown) and is discharged through the holes 10. The sleeve 4 has inclined vanes 13. The fan comprises a wheel with forwardly curved blades, the breadth of the wheel being much smaller than the internal width of the fan housing. Air cirulation between the pressure side and the suction side is permitted by a slot at the inlet of the fan wheel. The head discharges a hollow fuel cone surrounded by a hollow air cone into the furnace and the cones bend inwards and return towards the head.
Patent GB-1528419-A (GB)
Title: Method of producing microcapsules
IPC: C05G3/00
Filed: 1976-08-17
Abstract: 1528419 Microcapsules TAKEDA YAKUHIN KOGYO KK 17 Aug 1976 [18 Aug 1975] 34193/76 Heading B8C A method of producing a micro-encapsulated product comprises (a) dissolving an oil-and-fat which is solid at room temperature in an organic solvent by heating, the organic solvent being incapable of dissolving a core material to be encapsulated but capable of dissolving the oil-andfat when hot and capable of co-acervating the oil and fat when cold; (b) dispersing the core material in the resulting solution; (c) cooling the dispersion with stirring to co-acervate the oil-and-fat on the core material; and (d) recovering and drying the encapsulated particulate product. The oil-and-fat is suitably a hydrogenated oil-and-fat, solid fat or a synthetic solid glyceride. The core material may be a feed additive, medicine, agricultural chemical or food additive. A polymer such as a cellulose derivative or an acrylic copolymer, may be dissolved with the oil-and-fat in the organic solvent as in step (a). The product of step (d) may be mixed with a powdery hydrophilic carrier, e.g. magnesium stearate, aluminium stearate or talc, heated and then cooled.
Patent GB-813413-A (GB)
Title: Improvements in combine harvesters
IPC: A01D75/28
Filed: 1956-11-08
Abstract: 813,413. Combine-harvesters. RANSOMES, SIMS & JEFFERIES Ltd., and JARVIS J. S. Nov. 8, 1957 [Nov. 8, 1956], No. 34218/56. Class 6(3).  The straw-shakers in a combine-harvester are provided with coxcombs 7 which are adjustable relatively to the shaker and can be set for different gradients of terrain. Each shaker comprises serrated side-walls 2 interconnected by a slat-floor 4 with triangular-prismatic slats. In the form shown, a plate 15 is bolted, through the slats to a retaining plate 16, the upper plate having an upstanding wall 18 on which is pivoted, at 19, the coxcomb 7, so as to be adjustable, by a bolt and slot connection 20, 22 with the wall 18. In a modification, Fig. 2 (not shown), the supporting plates 15 are bolted to a cross-member secured between the side-walls 2.
Patent GB-1247460-A (GB)
Title: Improvements in articulated frameworks for carrying appliances at the rear of agricultural or other tractors
Inventor: MONEN SAKARI MATTI
IPC: B60P1/16
Filed: 1970-07-15
Abstract: 1,247,460. Load handling apparatus. S. M. MONONEN. 15 July, 1970 [24 July, 1969], No. 34275/70. Heading B8H. [Also in Division E1]  An articulated framework for carrying an appliance 8 at the rear of a tractor comprises a lower frame 2 attached to the chassis to pivot about an axis in front of, parallel to, and below the axis of rotation of the rear wheels of the tractor under the action of a ram 3. An intermediate frame 4 is pivoted at 11 to the frame 1 and is tilted by a ram 1. An upper frame 7 is pivoted to the intermediate frame 4 at 10 and is tilted by a ram 5. The appliance 8 is pivoted at 9 to the upper frame 7 and is tilted by a ram 6. The framework may be folded flat in a horizontal position, Fig. 2 (not shown). The frame 1 may have a ground engaging skid, casters or adjustable struts (not shown).
Patent GB-467473-A (GB)
Title: Improvements in machines for winding yarns and threads
IPC: B65H54/42
Filed: 1936-12-14
Abstract: 467,473. Winding yarns &c. BARMER MASCHINENFABRIK AKT.-GES. Dec. 14, 1936, No. 34303. Convention date, Feb. 25. [Class 120 (ii)] The drum 1 of a yarn or thread drum-winding machine is driven by a shaft 2 disposed in a large bore 3 in the drum. When at rest, the shaft does not engage the drum, and when starting up, the arm is lowered on to the shaft which drives it by rolling friction and gives a gentle and gradual drive so that breakage of the thread is prevented. The drum and bobbin 4 are raised to stop the drive by a lever 7 carrying a roller 9 beneath the drum and the lever also carries a rod, brake or the like 10 engaging the thread and lifting it out of the traversing guide 6.
Patent GB-1047678-A (GB)
Title: Method of storing for transport a natural gas mixture
Inventor: FAIRWEATHER HAROLD GEORGE CRUI
IPC: F25J1/02
Filed: 1965-08-11
Abstract: 1,047,678. Storing gases under pressure. VEHOC CORPORATION. Aug. 11, 1965, No. 34321/65. Heading F4P. Natural hydrocarbon gas containing at least 60% methane and at least 80% methane plus ethane is stored in one or more heat insulated containers at temperatures lying between the critical temperature of methane, i.e. - 116‹ F., and - 200‹ F., and at pressures lying between - 15 p.s.i. below and 300 p.s.i. above the bubble point-dew point pressure of the gas mixture at the chosen temperature.
Patent GB-829046-A (GB)
Title: Improvements relating to machines for cutting profiles corresponding to that of a pattern and/or for heat treating such profiles
Inventor: PETHYBRIDGE CHARLES A
IPC: B23K7/00
Filed: 1957-11-04
Abstract: 829,046. Electric copying machines. NEW BRITAIN MACHINE CO. Nov. 4, 1957, No. 34334/57. Class 40 (1). [Also in Groups II, XI, XXII and XXXV] A pattern reproducing machine for guiding a tool head such as a flame-cutting torch or a heat-treating head 29 (see Group II), comprises means 35 spaced from the tool head for sensing the outline of the pattern to be reproduced and controlling the angular position of a steering wheel 36 about its steering axis 38, and drive means 22 interconnecting the steering wheel and tool head. The machine is primarily intended for making rotary cams 63 and the pattern is carried by a platen 15 on which its outline may be painted by spraying round the edge of a master cam, or it may be marked on a sheet of paper or film attached to the platen. The latter is mounted on a vertical spindle 12 connected by gearing 31, 35, 32 with parallel spindles 13, 14 carrying respectively a blank 63<SP>1</SP> to be flame cut by torch 27 and a cut and machined cam blank 63 to be heat treated. A drive unit 25 for the sensing means 35 and steering wheel 36, the torch unit 27 and the heat treatment unit 29 are clamped to a bar 22 slidable in supports 18, 19. Steering wheel 36 is driven continuously by an electric motor 40, Fig. 3, and has a knurled edge 39 which engages and rotates platen 15 and hence the workpieces 63<SP>1</SP> and 63. The sensing means comprises a pair of photo-electric cells 41, 42 rotatable about an axis 37 and which detect the pattern outline 45 and transmit signals through amplifiers 47, 48 to a differential amplifier 49 controlling a motor 50 whose shaft 51 rotates the steering unit through gearing 52, the steering shaft 38 and a shaft 54 carrying the heat treating unit 29. During flame cutting the workpiece 63<SP>1</SP> is mounted on a hub 90 and it remains on this hub for subsequent grinding and heat treatment. The heat treatment cemperature is detected by a pyrometer 64 which transmits signals through amplifier 94 to a speed control unit 95 which controls the speed of the drive motor 40 and hence of the workpiece 63 to maintain the temperature constant. A manual speed control 98, indicator 97 and a recorder-indicator 96 may be fitted. Gas is supplied to the torch 27 through pipes 86, 87 controlled by a valve assembly 84.
Patent GB-762934-A (GB)
Title: Process for the polymerisation of cyclic lactams of ªÏ-amino-carboxylic acids
Inventor: HAMANN ADOLF
IPC: C08G69/18
Filed: 1954-11-26
Abstract: Lactams of o -amino carboxylic acids containing seven or more ring atoms are polymerized by incorporating an alkali metal hydroxide in dissolved form with the lactam, the solvent being removed from the reaction mixture immediately thereafter and before the polymerization.  The lactam may be subjected at or below the polymerization temperature to washing and irrigation with an anhydrous inert gas.  In an embodiment of the invention, only part of the lactam is subjected to the gassing operation after treatment with the alkali, the resultant mass being mixed with the remainder of the lactam for the polymerization process. Specified lactams include e -caprolactam, enantho lactam, heptane acid lactam and c -octane acid lactam whilst specified solvents are water, methanol and ethanol.  In the examples: (1) e -caprolactam is reacted with an ethanolic solution of caustic soda, solvent is removed and the lactam polymerized; (2) e -caprolactam is heated to the polymerization temperature and a weak current of nitrogen is introduced into the upper part of the vessel, when the temperature reaches 240 DEG  C., the nitrogen is introduced at the bottom of the vessel and aqueous caustic soda solution added, gassing being continued to drive out the solvent and complete the polymerization; (3) a methanolic caustic soda solution is added to an e -caprolactam melt, nitrogen introduced and the mass heated to 240 DEG  C. without gassing; (4) e -caprolactam is polymerized with methanolic caustic soda solution in a continuous process.  Specifications 762,443 and 762,927 are referred to.
Patent GB-373201-A (GB)
Title: Improvements in or relating to electric gaseous discharge tubes
IPC: H01J17/00
Filed: 1930-11-15
Abstract: 373,201. Discharge lamps. CLAUDE NEON LIGHTS, Inc., 41, East 42nd Street, New York, U.S.A.-(Assignees of Beck, L. L. ; 27, Stoneleigh Park, Westfield, New Jersey, and Noble, A. E. ; 46, Nassau Boulevard, Lynbrook, Long Island, New York, both in U.S.A.) Nov. 15, 1930, No. 34405. Convention date, Nov. 15, 1929. Drawings to Specification. [Class 39 (i).] A glow discharge lamp filled with neon at from 2-10 mm. of mercury is operated at high voltage in the neighbourhood of 10,000 volts with a cold cathode coated with barium peroxide which has been reduced by heat to barium sub-oxide. The cathode comprises a hollow cylinder closed at one end made of copper and the inner surface of the cylinder is coated as above. The Specification as open to inspection under Sect. 91 (3) (a) discloses cathodes of iron, copper, or nickel coated with oxides of electropositive elements such as those of the alkalineearth group. Moreover, the filling may comprise rare gases other than neon used singly or in combination. This subject-matter does not appear in the Specification as accepted.
Patent GB-342402-A (GB)
Title: Improvements relating to liquid level gauges
IPC: G01F23/34
Filed: 1929-11-12
Abstract: 342,402. Liquid level indicators. GIERS, C. A. DE, 42, Pilgrim Street, Forest Hills, New York, U.S.A. Nov. 12, 1929, No. 34461. [Class 123 (i).] A float-operated liquid level indicator is provided with a flexible rubber sleeve interposed between the float arm and the indicating mechanism to seal the latter from the contents of the tank. A metal sleeve 16 is mounted in the tank wall 10 and is secured by nuts 22 and packing 20, 24. One end of the sleeve 16 carries a flange 26 to which is attached the body 28 of the indicator, which is operated by an arm 30, link 32, and cranked member 36 pivoted at 38. The member 36 is enclosed in a rubber sleeve 42, 44, and is actuated by a pair of long jaws 54 on the end of the float arm 52, the jaws being clamped by a ring 56. The float arm and associated parts are easily detachable for cleaning, and the device is applicable to tanks containing liquids such as milk.
Patent GB-466897-A (GB)
Title: Improvements in or relating to remotely controlled printing telegraph recording mechanisms
IPC: H04L17/22
Filed: 1935-12-13
Abstract: 466,897. Type - printing telegraphy. STEVENS, A. H. (International Business Machines Corporation) Dec. 13, 1935, No. 34623. [Class 40 (iii)] In a receiving apparatus of the kind described in Specification 439,512, [Group XVI], in which the keys of a typewriter are pulled down by electromagnets selectively energized in response to the signals, Fig. 1 (not shown), the electromagnet 18, Fig. 2 (not shown) which operates the shift key is energized when contacts 44 are closed and released when contacts 44 are opened. When the shift signal is received an impulse is applied to magnet 30 as a result of which the cam wheel 43 is moved one step by the pawl 34. The cam 43 acts to close and to open the contacts 44, and thus to set the shift key into its upper-case and lower-case positions respectively, in response to successive shift signals. The device is described as applied to systems in which the characters correspond to differently timed impulses, but is also applicable to systems using the five-impulse code.
Patent GB-190914-A (GB)
Title: Improvements in devices for connecting the warp to the beams of looms and the like
IPC: D02H13/28
Filed: 1921-12-23
Abstract: 190,914. Tandler, O., and Tandler, G. Dec. 23, 1921. Warp beams; connecting warp to beams.-Two rods to connect warp to a beam are telescopically adjustable to suit different widths of cloth. The warp a is connected to the rod c in the usual way, which in turn is connected by links h to a rod f fastened by a web d to the recessed part of a beam c. The links h are secured on the rods by slidable collars l as shown in Fig. 4, and interengaging depressions u and t may be provided. The link may also have inturned lugs to engage recesses in the rods. The web d is adjustably clamped by a long metal strip v<11> to short transverse raised metal strips v on the beam. Fig 7 shows the telescopic rod f with an alternative wire link n at each end, the rod being in two sections held together by a sleeve f<1> which may be split and may have clamps for securing it in adjusted position on the rod sections. The width of the web d may be altered by using looped strips threaded on the ends of the rod f and the strip v<11>.
Patent GB-1216792-A (GB)
Title: Bituminous materials
Inventor: ROZA ABRAHAM GERRIT ALEXANDER
IPC: C08L95/00
Filed: 1969-07-09
Abstract: 1,216,792. Bituminous composition. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 9 July, 1969, No. 34705/69. Heading C3N. A bituminous material having a penetration index of from + 1 to + 7, a penetration at 25‹ C. of 5-200 (0À1 mm.) and a staining number below 30 is produced by mixing a component (1) being a bituminous fraction having a penetration index larger than + 5 and a penetration at 25‹ C. below 7 (0À1 mm.), a component (2) being a bituminous fraction having a penetration index below +1 and a penetration at 25‹ C. between 5 and 500 (0À1 mm.), and a component (3) being a bitumen fluxing agent having a maltene index not higher than 0À53 and an n-C 7 -asphaltenes content below 2% by weight. Component (1) may contain n-C 5 -asphaltenes, component (2) may be a precipitate obtained by treating a residual asphaltic oil with liquid propane, whilst component (3) may be a residue obtained from the sub-atmospheric distillation of a hydrocarbon oil. The bituminous material may be employed in the form of cutbacks, preferably 40-70% by weight of bituminous material and between 60-30% of a volatile organic solvent.
Patent GB-1063344-A (GB)
Title: Collar for personal wear
IPC: A41B3/06
Filed: 1964-08-25
Abstract: 1,063,344. Shirt collars. H. G. DAVIES, F. C. PRICE, H. MORRIS and W. G. TULLETT, [trading as LE ROI MENSWEAR], Aug. 16, 1965 [Aug. 25, 1964], No. 34715/64. Heading A3V. The outer layer 2 of a collar comprising at least two layers has an integral extension 6 at each end which is folded back and stitched at 7 and 17 to the inner layer 1 to form a pocket to receive a removable stiffener (not shown), the stitching being concealed when the collar is in use. The collar may also include an interlining 3 with a canvas stiffening layer 4 adhesively secured to it along its whole length and canvas end stiffening pieces 5. The collar points are defined by rigid plastic strips 5. The various layers are secured together at (10), Fig. 6 not shown, slightly below the top edge of the collar on the underside.
Patent GB-438829-A (GB)
Title: Heating apparatus for greenhouse and the like
IPC: A01G9/24
Filed: 1934-12-05
Abstract: 438,829. Heating buildings. RAWLINGS, W. J., Mowbray, Havelock Road, Bognor Regis, Sussex. Dec. 5, 1934, No. 34912. [Class 64 (ii)] In a heating system suitable for greenhouses, a water - jacketed flue D having transverse passages C is heated by a burner at A, and the heated water from the upper chamber F passes through the passage J on the side walls of a heat-radiating pipe I.
Patent GB-650115-A (GB)
Title: Water jet power unit
IPC: F03B3/00
Filed: 1947-12-31
Abstract: 650,115. Propellers. WALKER, A. G. Dec. 31, 1947, No. 34919. [Class 114] A propeller having a series of blades C, D, L secured to a shaft M is mounted in and secured to a tube B running in bearings H on fixed tubes E. The tube is rotated by a belt engaging in the pulley A. Specification 176,756, [Class 114], is referred to.
Patent GB-818935-A (GB)
Title: Improvements in or relating to electric components having hermetically sealed metal cases
IPC: H01G4/224
Filed: 1956-11-15
Abstract: 818,935. Capacitor cases. GENERAL ELECTRIC CO. Ltd., HALLIDAY, V. M., and TAYLOR, F. Nov. 15, 1957 [Nov. 15, 1956], No. 34940/56. Class 37 [Also in Groups XVII and XXII] An electric component, such as a capacitor, is housed in a metal case 1 which is sealed by bending over inwardly the open edge 2 of the case to press into a resilient member 11; the metal portion 5 which is bent over being thinner than the metal walls of the main body of the case. As described, a capacitor 7 has a rectangular aluminium case 1 in which indentations 4 are formed on each side near the open end. A terminal plate 10 of insulating material rests on the indentations and is surmounted by a rubber washer 11. The portion 5 of the case between the indentations and the open end is tapered, by as much as 50 per cent, on the inner surface 6, Fig. 3, to facilitate bending. Electrode connecting wires 13 are soldered to terminal tags 12, and a layer of epoxy or polyester resin may fill the space above the washer 11 to improve the seal. The invention may be applied to a cylindrical case. The end portion of the case may be thinned before forming the indentations 4 by forcing the case through a die 14 by means of a punch 15 of varying cross-section. Fig. 5, the portion 18 corresponding to the tapering required. The uppermost portions 17 of the punch may be of cross-section equal to or smaller than the die aperture; in the latter case the open end of the can will need trimming after the tapering operation, Fig. 6 (not shown).
Patent GB-816408-A (GB)
Title: Improvements in or relating to sharpeners for knives and like cutting implements
IPC: B24D15/08
Filed: 1956-11-15
Abstract: 816,408. Knife sharpeners. HYDE, T. E. Nov. 15, 1957 [Nov. 15, 1956], No. 34953/56. Class 60. A device for sharpening the blades of knives and like cutting implements comprises a honing rod 1 having at its handle end opposed radiallydisposed sharpening elements 4, 8 forming a groove for producing a bevel on the edge of a knife drawn therethrough. The steel honing rod, 1 which is of polygonal cross-section having smooth or roughened surfaces 21, has a reduced portion 2 threaded to receive a nut 16 fitted integrally to a handle 13. A disc 3 is secured to the handle end of the rod and has a slot into which a rib 4, preferably of steel, is press fitted. A secured disc 7, which has a similar rib 8, is rotatably-adjustable, together with a guard plate 11 to which it is located by a pin 19, on the rod 1 and can be clamped in a prederermined position by rotation of the handle 13 and nut 16. The discs may be spaced apart by a ring 10 and a fibre or resilient washer 12 may be used to aid firm clamping. The ribs 4, 8 form a V-groove through which the knife blade is drawn to shape a bevel on its edge before the edge is honed on the rod 1. Rotational adjustment of the disc 7 permit different portions of the ribs to be used and by positioning the rib 8 on one side or the other of the rib 4, it is stated that the device can be used by right or left-handed persons. In an alternative embodiment, the disc 7a, Fig. 4, has a pair of parallel ribs 24, 25 and can be rotatably-adjusted so that the rib 4 on the disc 3 contacts either of the ribs 24, 25 for right or left hand usage or is dispersed centrally between them to provide a honing position. The guard plate is marked to indicate the positions of the ribs for honing or right or left hand usage.