baber/WOPTO huggingface dataset:
Patent GB-1274974-A (GB)
Title: Improvements in heat treatment furnaces
Inventor: ELLIS CHARLES CLAYDON
IPC: F27B5/16
Filed: 1970-04-01
Abstract: 1,274,974. Circulating furnace; atmosphers. WILD BARFIELD Ltd. 19 April, 1971 [1 April, 1970], No. 15370/70. Heading F4B.  In a forced convection heat treatment furnace comprising an outer water jacketed wall 4 and an inner easing 7 enclosing a work receiving muffle 11 surrounded by heating elements 10, a centrifugal fan 12 is axially movable between the position shown in which it circulates atmosphere gas over the heating elements and the work and the position shown in dotted lines in which it circulates the gas over cooling pipes 22 through doorway 9 and over the work. The fan shaft 15 has a spline 18 slidable through a driving coupling 19 and is mounted in a sleeve 16 carrying a closure member 17, said sleeve being movable axially by a pneumatic motor. During the heating period the inner casing is closed by a door 20.
Patent GB-312078-A (GB)
Title: System for the transformation of motive force
IPC: F03G7/10
Filed: 1929-05-16
Abstract: 312,078. Minidre, G. May 18, 1928, [Convention date]. Direct air-pressure apparatus, automatic; vacuum apparatus.-Liquid-containing columns 1, 2, are connected by a tube 6, containing air under reduced pressure and the column 1 is provided with a tube 4. By periodic air suction or pressure effects, liquid enters the column 2 from a reservoir 8, and is discharged therefrom through float-controlled valves 10. The water discharged may actuate a hydraulic turbine &c. 14, from which the suction or pressure-producing apparatus may be operated. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of a tube 16, Fig. 1 (Cancelled) in the column 2, and other forms shown in Figs. 4, 5 and 6 (Cancelled), the form shown in Fig. 5 (Cancelled) being stated to allow water to be raised from great depths. This subject-matter does not appear in the Specification as accepted.
Patent GB-139090-A (GB)
Title: Improvements in or connected with ballonet diaphragm systems for balloons
IPC: B64B1/62
Filed: 1919-06-19
Abstract: 139,090. Mackworth, J. D. June 19, 1919. Aerostats.-The pressure in the ballonets of non-rigid aerostats due to the admission of external air is augmented by springs or other counterbalancing-means acting between the envelope and the ballonet diaphragm, in order to enable the gas in the envelope to be maintained at a higher pressure. Fig. 2 shows rubber springs 8 connected at 9 to the envelope 4 and at 10 to cords 11 adjustably secured to the ballonet diaphragm 5.
Patent GB-1477975-A (GB)
Title: Production of 3-trichloromethyl-5-lower alkoxy-1,2,4- thiadiazoles
IPC: C07D285/08
Filed: 1975-04-15
Abstract: 1477975 3 - Trichloromethyl - 5 - alkoxythiadiazoles OLIN CORP 15 April 1975 [2 May 1974] 15475/75 Heading C2C 3 - Trichloromethyl - 5 - C 1-4  alkoxy - 1,2,4- thiadiazoles are prepared by reacting 3-trichloromethyl - 5 - chloro - 1,2,4 - thiadiazole with 1À01-4 moles of an alkali metal, alkaline earth metal or ammonium hydroxide, oxide or carbonate and 1-15 moles of a C 1-4  alkanol per mole of the thiadiazole at 0-120 C. in a reaction medium comprising 15-70 wt. per cent water, then neutralizing the reaction mixture, separating into phases and recovering the desired product. The water content of the reaction mixture is preferably sufficient to dissolve water-soluble salts precipitated during the reaction, e.g. 50-70% by weight. An alkali metal hydroxide is preferably employed with ethanol as the alkanol and a reaction temperature of up to 80 C. The reaction mixture is preferably neutralized to a pH below 8 prior to phase separation and solvent recovered from each phase is recycled to the reaction step.
Patent GB-129267-A (GB)
Title: Combined Electric Lamp and Alarm Clock.
Inventor: NIELSEN NIELS ARTHUR INGVORD
IPC: G04C21/22
Filed: 1919-06-19
Abstract: 129,267. Nielsen, N. A. I. July 3, 1918, [Convention date]. Clocks combined with electric lamps.-A case or hollow stand 2 is provided to support an electric lamp 5 and to contain an alarm clock 1 which, when striking, lights the lamp by operating a switch 3 on the case. The winding-key 6 for the alarm mechanism is formed with limitedly hinged wings 8 subject to directing-springs 9, and a tumbler switch 3 is attached inside the case at such a height that its operating-finger is in the path of the wings. In winding-up, the wings just catch the switch finger and yield to pass it, but in running down the first of them comes to a radial position under the finger and forces it out of the way. The switch may be independently operated by means of an endless strap 11 and an external lever 12.
Patent GB-770730-A (GB)
Title: Improvements in battery separator and method of making same
IPC: D21H17/53
Filed: 1955-05-31
Abstract: 770,730. Fibre board battery - separators. UNITED STATES RUBBER CO. May 31, 1955 [Aug. 31, 1954], No. 15532/55. Class 96. A separator for an electric accumulator is made from a bibulous sheet 1 of uniform formation, e.g. 0.015 to 0.06 in. thick, embossed &c. with ridges 2, and having an air permeability (Gurley 5 oz. cylinder) of 4 to 19 secs., and having at least 90 per cent of alpha cellulose fibres, e.g. cotton linters impregnated with a C-stage phenol-formaldehyde resin mixed with a non-ionic surface-active agent which is either a polypropylene glycol of mol. weight 1250 or an up to 60/40 product of condensation of ethylene oxide with a polyoxypropylene base and having a mol. weight of 890 to 3600. The resin may be applied at the A-stage and cured. Specifications 700,665, 700,666 and 770,241 are referred to.
Patent GB-188351-A (GB)
Title: Improvements in miners' safety lamps
IPC: F21L23/00
Filed: 1921-06-06
Abstract: For detecting the presence of gases in mines by means of flame-caps, a miner's safety lamp is provided with a subsidiary burner supplied with carburetted air from a portable carburetting-apparatus, adapted to be readily attached to the lamp, which will burn with a hot flame. Substances such as many copper derivatives may be added to the hydrocarbon in the reservoir of the carburetting-apparatus so as to produce a coloured flame when the gas at the subsidiary burner is ignited.
Patent GB-303327-A (GB)
Title: Improvements in change-speed devices for bicycles and the like
IPC: B62M11/14
Filed: 1928-05-29
Abstract: 303,327. Schmieder, E. May 29, 1928. Variable-speed gearing comprises a bevel differential train 5, 38, 34, the planet carrier 36 of which is the driven element, one side gear 5, Fig. 1, is the driving-element, and the other side gear 34 is driven from the first side gear through spur epicyclic variable-speed gearing. In the adaptation to a cycle hub shown, the whole is assembled about a fixed axle 1 and the carrier 36 drives the hub 47 through pawls 43, Fig. 4, to allow coasting. There are two two-speed spur epicyclic trains connecting the bevel gears 5, 34, one at each end of the hub. The spur gear on the right turns within a hollow member 3 which secures the bevel gear 5 to a driving- sprocket 4. Planets 9, 10 in a loose carrier 7 mesh with a sun 6 fast to member 3, and with a sun 11 fast to a sleeve 12, which passes through the carrier 36. The spur gear on the left has planets 31, 32 in a loose carrier 28. which mesh with a sun 26 on sleeve 12, and with a sun 33 secured to bevel gear 34. Each spur train yields a solid drive by clutching, and a reduced speed by anchoring the planet-carrier 7 or 28 to the axle 1. The side gear 34 and therefore the differential carrier 36 and hub 47 can thus be driven at four speeds, the highest being solid. The carriers 7, 28 are anchored by being engaged directly at 19 and 19<1> by sliding transverse keys 21, 21<1>, respectively. The locking solid is effected by clutch discs 17, 17<1>, shown also in Figs. 9 and 10. These discs have feathered connections 18 with the carriers and arc adapted to be pushed by the keys 21, 21<1> into clutch engagement with dogs 24 on the gears 6 and 26 respectively. The clutch recesses 23 in the discs 17 have one inclined edge each, and the dogs 24 are similar, the effect being that the discs become disengaged from the dogs when the keys 21 are moved away. Operation is effected by moving the keys by way of the angle-ended rods 50, 51, Fig. 1, passing within the axle 1. The ends 50, 51 engage a spring- returned rotary cam barrel 52.
Patent GB-569276-A (GB)
Title: Improvements in or relating to heating apparatus and control system therefor
IPC: F23C99/00
Filed: 1942-07-01
Abstract: 569,276. Air heaters. STEVENS, A. H. (Galvin Manufacturing Corporation). July 1, 1942, No. 15701/43. Divided out of 569,274. Drawings to Specification. [Classes 64 (i) and 64 (ii)] [Also in Groups X, XI, and XXVII] An air heater suitable for use in automobiles and aeroplanes comprises means for supplying air and fuel through adjacent inlets to a mixing chamber connecting an air pressure chamber to a combustion chamber, means for heating the fuel and air prior to entering the combustion chamber, and means for causing the air to be heated to flow in heat exchange relation with the combustion Chamber. The fan supplying air to the air pressure chamber may be driven by an electric motor or an internal combustion engine. The heating of the fuel and air may be effected electrically or by the exhaust gases from the internal combustion engine. The air heating apparatus described is the same as that described in Specification 569,274.
Patent GB-501966-A (GB)
Title: Improvements in or relating to television systems
IPC: H04N5/272
Filed: 1937-06-07
Abstract: 501,966. Television. BLUMLEIN, A. D., and SPENCER, R. E. June 7, 1937, No. 15728. [Class 40 (iii)] A foreground is scanned against a whiter-than white surface to produce signals 4 ; the whioerthan-white signals 6 are isolated by an amplitude filter 8 and controlling pulses 19, 21 are developed therefrom, to control the foreground amplifier 20 and an independent background amplifier 22 which is fed with background signals 7 produced by independently scanning a background ; the outputs of the amplifiers 20, 22 are combined at 25 so that the reproduced picture has the foreground and back. ground combined. The isolated signals 28 are applied to a delay network 9 to produce pulses 10 which are combined at 11 to produce pulses 27 and limited at 12 producing pulses 13 longer than the original pulses 28 and delayed in inception. The pulses 13 control the production of pulses 19, 21 which are superposed on the signals 4, 7. The delay in inception of pulses 19, 21 corresponds to the delayed introduced in the amplifiers 15, 17, 20 and 16, 18, 22. The pulses 19, have longer black than white peaks so that they overlap the whiter-thanwhite peaks 6. Limiters 23, 24 cut-off the displaced portions of the signals 4, 7 and the outputs are compounded at 25. The D.C. components should be present at each limiting or mixing stage. According to the Provisional Specification, the signals injected at 1, 2 need not be foreground and background scenes and the output 26 may reconstitute a picture composed of sections of each of the original scenes. Change-over from one scene to another may be produced by variation of the controlling pulses 19, 21. The control pulses 19, 21 may be obtained by scanning a black-and-white surface. Specifications 417,282, 455,785, and 482,740 are referred to.
Patent GB-1138756-A (GB)
Title: Sheet glass drawing processes and machines
Inventor: BRICHARD EDGARD
IPC: C03B15/04
Filed: 1966-04-07
Abstract: 1,138,756. Sheet glass manufacture. GLAVERBEL. 7 April, 1966 [22 July, 1965], No. 15730/66. Heading C1M. In a sheet glass drawing process in which glass is drawn upwardly from a bath of molten glass into a drawing chamber equipped with main coolers placed on opposite sides of the line of draw, auxiliary coolers are located between the main coolers and the top of the drawing chamber whereby gas currents descending in the drawing chamber in the vicinity of the auxiliary coolers are there deflected outwardly away from the draw line past the notional vertical planes containing the outer boundaries of the main coolers and up to or towards the front and rear boundary walls of the chamber. Several examples of different constructions of auxiliary coolers are described and illustrated. In one embodiment these comprise water - cooled rectangular shaped boxes 17, mounted so that their angle of deflection can be adjusted but always maintaining their outer edge beyond the notional plane of the outer edge of the main coolers 15. The auxiliary coolers may be specially shaped with sloping surfaces, or may even be of such length that their lower edges come below the upper surfaces of the main coolers. In alternative embodiments the auxiliary coolers may have articulated joints, or have pivotally mounted plates attached thereto. This process may be applied to the drawing of sheet glass wherein after the initial draw the sheet is bent horizontally into an annealing lehr. In such cases only one auxiliary cooler need be used, placed on the opposite side of the sheet to the bending roller.
Patent GB-637968-A (GB)
Title: Dry shaver heads
IPC: B26B19/04
Filed: 1948-06-11
Abstract: 637,968. Dry shavers. REMINGTON RAND, Inc. June 11, 1948, No. 15834. Convention date, June 26, 1947. [Class 131] A dry shaver comprises a slotted, stationary, outer cutter 2 within which a spring-urged inner cutter 3 reciprocates, grooves 8 and 18 extending longitudinally of the operative face of each cutter to guide the inner cutter with its side-walls 19 spaced from those of the outer cutter, the outer ends of the inner cutter and the ends adjacent to the groove 18 being bevelled at 21 and 22 and the slots in the cutters extending into the side walls 19 and 10. The slots in the outer and inner cutters are staggered on opposite sides of the grooves.
Patent GB-612476-A (GB)
Title: Improvements in or relating to parachutes
IPC: B64D17/00
Filed: 1946-05-24
Abstract: 612,476. Parachutes. QUILTER, J. R. C. May 24, 1946, No. 15851. [Class 4] A parachute for use at high speeds comprises the usual dome-shaped canopy 10 to which is attached an inner parachute 14 of the ring type, made of a more porous fabric than the main canopy. The dome-shaped canopy may be made of finely-woven silk and the. ring canopy of coarsely woven-hessian or shantung. The Figure shows a parachute fitted with vanes 22 as described in Specifications 497,448 and 531,884, and intended for use as a pilot or retarder parachute for the extraction of a loadsupporting parachute from a pack, for example as described in Specification 574,363. The ma in and inner parachutes are secured together along their external peripheries, the inner periphery of the inner parachute being attached to a wire ring 16 forming the top end of a tapering coiled spring 17, through the inside of which are passed the inner shroud lines 19a of the ring parachute, the outer lines 19b of which are enclosed in seams 21 along the outer edges of the vanes 22. A load-attachment buckle 20 is attached to the ends of the shroud lines. The inner edges of the vanes 22 are connected to form a conical bag 23 surrounding the spring 17, but attached thereto only at its upper end. In the case of a main load-carrying parachute, with or without a pilot parachute, the opening spring and its enclosing bag are omitted.
Patent GB-590275-A (GB)
Title: New or improved means for fixing reflecting lenses
IPC: E01F9/619
Filed: 1944-08-19
Abstract: 590,275. Reflectors. KIDD, R. A., COTTON, W. H. B., and ROTH, F. J. Aug. 19, 1944, No. 15870. [Class 3 (ii)] A reflector 3 is formed with a shoulder 5 and is mounted in a recess 1 in a base 2. A ring 6, or mass of caulking material, is pressed into the recess around the reflector 3 between the shoulder 5 and the open end of recess 1 to retain it in place, and a pad 4 of cork, fibre, rubber &c. is laid at the bottom of the recess. The rear face of the reflector 3 may be convex and the sides of the reflector, or of the recess, may be grooved to receive the caulking material. Specification 570,676 is referred to.
Patent GB-439048-A (GB)
Title: Improvements in or relating to electron emitting cathodes
IPC: H01J29/48
Filed: 1934-05-28
Abstract: 439,048. Thermionic cathodes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and YOUNG, A. J., 61, Galveston Road, Putney, both in London. May 28, 1934, No. 15880. [Class 39 (i)] A cathode structure suitable for use in cathode-ray tubes comprises a container body constituted by a metal, preferably nickel, tube A of external diameter which is small compared with its length and is closed at one end A<1> with the exception of an aperture which is small compared with the external diameter of the tube. A store of electron-emissive material E is located within the partially closed end of the tube, and a heater element H is located within the tube. The end A<1> of the tube is preferably spun into rounded form, and the emissive material E contained in a circular aperture, the emitting surface being made slightly concave by polishing.
Patent GB-375049-A (GB)
Title: Improvements in envelopes or wrappers for cigarette packets or similar articles
IPC: B65D65/14
Filed: 1931-06-01
Abstract: 375,049. Wrappers for cigarettes &c. MOLINS, W. E., 2, Evelyn Street, Deptford, London. June 1, 1931, No. 15948. [Class 94 (i). An airtight envelope for a block-shaped packet of cigarettes &c. comprising a rectangular blank folded to form a block bottom pocket is characterized in that gum, celluloid solvent, &c. is applied to the blank and/or the partly-formed wrapper so that each fold which is wholly or partially exposed is secured by the gum &c. to the surface in contact therewith to exclude air. The blank 1 is provided with areas of gum 2, 3, 4, the block bottom being folded as in Fig. 3, the narrow tucks 5 being first formed after which the side portions 6 are folded in and finally the side portions 7 are folded down, the bottom and sides being hermetically sealed by the gum streaks 2. The top is closed as in Fig. 5 by firstly folding in the narrow side tucks 8, then the flap 9 and finally the flap 10, the top being hermetically sealed by the gum patches 3 ; the patch 4 being preferably applied to the flap 9 after it has been folded in. If a wrapper of celluloid is used gum may be replaced by a suitable solvent, e.g. that sold under the Registered Trade Mark " Cellosolve." The wrapper, if of paper, may be waxed on its inner surface except where it is to contact with a corresponding patch of gum.
Patent GB-897830-A (GB)
Title: A self-propelled loading machine
IPC: E21D9/12
Filed: 1959-05-08
Abstract: 897,830. Endless conveyers. LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT. May 8, 1959 [Sept. 9, 1958], No. 15950/59. Class 78 (1). A self-propelled loading-machine mounted on two endless tracks pivotally supports at 5 a gathering head 2 provided with gathering shovels, and two loading chains 3 having an individual drive motor. Material is fed from the gathering head to an endless conveyer 4, pivoted at 10 to the head and supported on an adjustable abutment 11, which feeds an individually driven endless conveyer 15 pivotable about a horizontal axis 16 and a vertical axis 14 mounted on a cantilever support 12 provided with pins 13 removably inserted in slots in the chassis. The two endless tracks are each provided with an electric drive motor, and a set of levers for the manual control of the machine is located symmetrically on each side of the machine.
Patent GB-1033412-A (GB)
Title: Brazing platinum and alloys thereof
Inventor: RHYS DAVID WADE
IPC: B23K35/32
Filed: 1962-04-26
Abstract: 1,033,412. Brazing. INTERNATIONAL NICKEL Ltd. April 19, 1963 [April 26, 1962], No. 16006/62. Heading B3R. In joining two pieces of sheet of platinum or an alloy thereof in which platinum is the predominant constituent and which contains at least one other precious metal, brazing metal of melting point lower than that of the pieces is held molten between the pieces for long enough for metal of the sheet to diffuse into the whole of it and raise its melting point. Heating is preferably carried to the stage at which the brazing metal is of substantially the same composition as the adjacent surfaces of the pieces. To form a joint with gold heating is for 30 mins. at 1350 C. when gold-platinum alloy melting above 1300 C. is formed. To obtain an alloy melting above 1700 C. heating is for 30 mins. at 1400 C. or for 12 mins, at 1600 C. In examples, two pieces of a sheet of dispersion hardened platinum alloy are brazed with 75% gold, 25% palladium alloy and 40% gold, 60% palladium alloy respectively and pieces of pure platinum sheet are brazed with the same alloys. Brazing metals may be gold, copper and palladium, alloys of these three metals, alloys of palladium and nickel with or without gold or copper or both, alloys of platinum with any one or more of gold, copper and palladium and alloys of platinum and nickel with or without any one or more of gold, copper and palladium. The brazing metal may be in the form of foil and heating may be resistance heating.
Patent GB-561352-A (GB)
Title: Spindle driving apparatus for spinning and twisting machines
IPC: D01H1/242
Filed: 1942-11-14
Abstract: 561,352. Spinning frames. HEALD, F., and TWEEDALES & SMALLEY (1920), Ltd. Nov. 14, 1942, No. 16122. [Class 120 (ii)] In a spinning and twisting machine in which each spindle is driven by a pair of spiral or bevel gears from a main shaft constructed in removable driving sections, one spiral or bevel gear of each pair is rotatable on the bolster of the spindle and drives the latter and the other is mounted on a driving shaft section, one section for each spindle. As shown, the spiral gear A is rotatably mounted on the sectional driving shaft B and is journalled in a casing D<2> having a removable part D<1> fixed thereto by screws. The gear has a boss C carrying a brake drum E forming part of a flexible coupling J engaging the other part of the coupling on the next adjacent shaft section and the gear is formed with an internal clutch member L adapted to engage a clutch member M slidably keyed on a sleeve N fixed on the sectional shaft B, a compression spring R being disposed between a shoulder Q on the member M and a collar P on the shaft B and normally keeping the clutch members in engagement ; the clutch members can be disengaged by a hand lever W fixed to a shaft U carrying a cam S engaging a flange T on the member M, and when the clutch is disengaged continued movement of the hand lever causes a brake-arm to apply a shoe to the brake drum E and bring the spindle to rest, while a ball catch X holds the lever W in position. The gear A meshes with a spiral gear A<1> rotatable on the spindle bolster B<1>, the gear A<1> having a boss C<1> carrying pins C' or springs which enter recesses in the flanged bobbin platform C<5> fixed on the spindle and driving the bobbin through pins C<x>. In a modification, the gear A is fixed on its sectional shaft and the clutch members are carried by the spindle bolster with the brake drum on the bobbin platform. The gear case D<2> forms an oil well in which one of the gears is partly submerged, the part D<1> can be removed without disturbing the gears, the spindle can be lifted out of its bearing, and a gear case with its sectional driving shaft, spindle, &c. can be removed from the rail or frame W independently of neighbouring gear cases.