baber/WOPTO huggingface dataset:
Patent GB-794084-A (GB)
Title: Travelling wave electron discharge devices
IPC: H01J23/30
Filed: 1956-08-24
Abstract: 794,084. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. (International Telephone & Telegraph Corporation). Aug. 24, 1956, No. 25958/56. Class 39(1). An attenuator for absorbing R.F. energy propagated along the slow wave structure of a travelling-wave tube consists of a gaseous discharge device. The gaseous discharge may be initiated and maintained by applying suitable potentials to electrodes within or external to the device ; the gas may be ionized by the R.F. field of the slow wave structure. Secondary emission may be used to augment the electron density in the gaseous discharge. Gyroresonance of the electrons of the gas plasma, as described in Specification 731,362, may be set up under the influence of the magnetic field used for focusing the electron beam. In Fig. 2, an annular discharge device 15 surrounds the support rods or tubing 17 of the helix 4. In another embodiment, Fig. 6, the annular envelope 16 has its inner wall 28 fluted to support the helix 4. In Fig. 4 the discharge device 15 includes a metallic base portion 26 in a glass envelope 24. A coating of secondary emissive material is disposed on the inner surface of base 26 and a pulsed potential is applied to it from surface 27. Helix 4 junctions as a ground plane to accelerate electrons back to coating 26 to produce secondary emission. As shown in Fig. 5 the cross-section of device 15 is of hollow walled triangular shape. In a further embodiment, Fig. 10, the discharge device 33 is disposed about the vacuum envelope 34 and is incorporated in the metal packaging shell 35. In other embodiments with travelling wave tubes employing a hollow electron beam, Figs. 8 and 9 (not shown) the gaseous discharge device may be located within support rods of the helix or may itself provide the support for the helix. In Fig. 7 the discharge device is a helical tube 30 interleaved with the helix 4. The gaseous discharge device may have a filling of Xe, He, Ne, Ar or Kr, and may be air or liquid cooled. Slow wave structures composed of baffles may be used in place of helices.
Patent GB-518831-A (GB)
Title: Improved process of and apparatus for the intimate combining of steel and non-ferrous metal
IPC: B22D19/00
Filed: 1938-09-05
Abstract: 518,831. Casting composite articles. MONZER, A. Sept. 5, 1938, No. 25970. [Class 83 (i)] Moulds ; casting processes.-In casting non- ferrous metal upon a steel shell in the manufacture of bearings &c means is provided for dissipating heat through the shell. A shell 1 is placed in a sand mould with sand core 6 and the non - ferrous metal is poured through a channel 10, slag being trapped in an extension 9. A metal block 4 dissipates heat through the shell to cause rapid cooling of the inner layer of non-ferrous metal, a packing of sand 5 prevents chilling. In a modification Fig. 3, not shown, the packing 5 tapers towards the bottom to cause cooling from the bottom upwards. The block 5 may be cooled. In a modification Fig. 4, not shown, non-ferrous metal is cast on the outside of the shell an internal metal cylindrical block dissipating the heat inwards. A conical block of high conductivity may be arranged within the cylindrical block.
Patent GB-773029-A (GB)
Title: Improvements in two-stroke internal combustion engines
Inventor: BELLWINKEL CURT
IPC: F02B25/00
Filed: 1955-09-12
Abstract: 773,029. Two-stroke engines. PROMOTOR, ANSTALT FUR MOTORENTECHNIK. Sept. 12, 1955, No. 26040/55. Class 7 (2). In a two-stroke crank case compression engine comprising a sealing channel g mounted on the crank case a and extending into the cylinder and into the piston when the latter is at B.D.C., the channel being of U- section and having each of its parallel side walls in the same plane as the inner surface of the respective crank web b, the connecting rod c is formed to have a close sliding fit in the channel and between the opposed inner faces of the webs b so as to produce a pumping action in addition to that of the piston and supply an increased charge of air or mixture to the cylinder. The depression in the lower part of the cylinder and in the crank case resulting from upward movement of the piston causes air to be drawn in through an intake i into the crank case, and a rich mixture to be drawn into the piston via an intake k and a duct f formed inside the pistons. The piston is cooled by the rich mixture and air, and the fuel is consequently vaporized. During downward movement of the piston air is pre-compressed in the crank case and transfer passage m whilst the mixture is compressed in the piston interior ; upon the piston uncovering .the exhaust port l and the cylinder end of the passage m, the scavenging is effected by the air compressed in the latter and the crank case and then the mixture from the inside of the piston. The pre-compression of air and mixture by the piston is aided by the movement of the connecting rod c, which, together with a finger h formed in the latter path, seals the top portion of the channel g and, sliding between the webs b, moves closely to the bottom portion of the channel thereby pushing the air in front of it into the passage m. In a modification the air or a fuel-air mixture directly enters the crank case ; the engine may operate on the diesel cycle.
Patent GB-685375-A (GB)
Title: Valve lubrication
IPC: F16K5/22
Filed: 1949-10-11
Abstract: The lubricant reservoir of a plug valve (see Group XXIX), contains a composition consisting of a plastic lubricant diluted with a highly volatile thinning vehicle, thereby permitting easy flow of the lubricant from the reservoir to the seating surfaces of the valve. Thus the reservoir of a plug valve in a line carrying aqueous liquids may contain a composition consisting of aluminium fatty acid soap, carnauba wax, blown castor oil and toluol.  Instead of toluol other highly volatile thinning vehicles, such as mesityl oxide, n-octene, carbon tetrachloride, cyclohexanone, carbitol, diacetone alcohol, ethyl benzene, turpentine, cyclohexane or acetone may be employed. The reservoir of a plug valve in a line carrying hydrocarbon liquids such as gasoline, naphtha, fuel oil, benzol or toluol, or solvents such as carbon tetrachloride or trichlorethylene may contain a composition consisting of glycerine, sodium stearate and ethyl alcohol.  Instead of ethyl alcohol, other highly volatile thinning vehicles, such as isopropyl alcohol, methanol, isobutyl alcohol or amyl carbinol may be employed.  The composition consisting of plastic lubricant and thinning vehicle, if marketed in stick form, may be given a protective coating of wax or protective plastic.  A less viscous composition, for grease gun application, may however be marketed in bulk form.
Patent GB-394306-A (GB)
Title: Improvements in or relating to compressors
IPC: F04B7/04
Filed: 1931-09-17
Abstract: 394,306. Piston compressors. ATELIERS D'AWANS ET ETABLISSE. MENTS FRANÃOIS R•UNIS EN ABR•G• AWANS-FRANÃOIS SOC. ANON., Liege, Belgium. Sept. 17, 1931, No. 26069. Convention date, Oct. 11, 1930. Void [Published under Sect. 91 of the Acts]. [Class 8 (i).] A piston 1 and a ported cylinder 5 are reciprocated in partly opposite directions within an outer cylinder to compress air between them.
Patent GB-441606-A (GB)
Title: Improvements in and relating to automatic reclosing circuit breaker systems
IPC: H02H3/07
Filed: 1935-09-20
Abstract: 441,606. Protective cut-out systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Sept. 20, 1935, No. 26112. Convention date, Sept. 20, 1934. [Class 38 (v)] An automatic circuit-breaker 1 is closed by a coil 4 and opened by a trip coil 5 on overload even while the coil 4 is energized, the breaker in the latter case being prevented from being reclosed until 4 has first been de-energized. When 1 opens, it connects at I1 a relay coil 10 across a condenser 7 which is charged with D.C. from a rectifier 8 over a relatively high resistance 9. The relay coil 10 is energized by the discharge of 7 and closes contacts 12 in the circuit of coil 4, which recloses the breaker at once, and also makes a maintaining circuit for itself at 14 to ensure the condenser being discharged below the pick-up voltage of the relay. If the breaker remains closed, the relay restores when the condenser is discharged and its time delay is completed. The impedance of coil 10 is made relatively low compared with that of resistance 9 so that current from rectifier 8 is insufficient to operate the relay, so that when 14 reopen, the condenser begins to get recharged. If the breaker reopens before the condenser has become sufficiently recharged to operate 10, closure of 11 reconnects the coil 10 across the condenser, which discharges but does not operate the relay. The impedance of 10 is relatively low compared with that of 7 so that the latter is not recharged to its operating value in these conditions.
Patent GB-812444-A (GB)
Title: Wet strength paper tester
IPC: G01N3/00
Filed: 1956-08-27
Abstract: 812,444. Forming test-sheets of paper &c. ONTARIO PAPER CO. Ltd. Aug. 27, 1956 [Sept. 21, 1955], No. 26113/56. Class 96. [Also in Group XIX] A sheet of paper for a wet tensile strength test (see Group XIX) is formed on a disc of wire-cloth, Fig. 5, split into two halves which have continuity in wire pattern at the join. To achieve this, the wire is cut before being mounted in a ring 5a, and whilst being mounted a continuous stress is applied parallel to the join. The two halves 5a are mounted in a carrier 6, Fig. 1, which rests on top of a supporting wire 7b and a grid 7a, held together by a ring 16, on a base member 8. A cylinder 1 is hinged to the base member 8 and can be held in place by means of clamps 4, a watertight seal being provided by O-rings 3, 11. In operation, water is added to the cylinder 1 to cover the wire 5, a measured quantity of pulp added and additional. water then added to bring the level to a predetermined height. The stock is then stirred and the cylinder drained. The reservoir is released and the carrier 6 transferred with the formed sheet to a similar apparatus (Fig. 6) in which are a supporting wire and grid 54, 55 similar to those shown in Fig. 4, a wetted blotter being placed on the wire 54. A vacuum is then applied, thus holding the sheet down, for a predetermined time. When the vacuum is released, the springs 53 lift the carrier 6 and wire 5 clear of the blotter. The sheet on the carrier 6 and wire 5 is then transported to a tensile testing machine (see Group XIX). The parts of the apparatus shown in Fig. 1 and Fig. 6 may, if desired, be combined into one unit.
Patent GB-389869-A (GB)
Title: Wireless signalling system
IPC: H03J3/06
Filed: 1931-08-17
Abstract: 389,869. Inductances. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Wheeler, H. A. ; 18, Melbourne Road, Great Neck, New York, U.S.A.) Aug. 17, 1931, No. 26131/32. Convention date, Sept. 10, 1930. Divided on 383,668. Drawings to Specification. [Class 37.] The description is identical with that of Specification 383,668 but the claims relate to the input band-pass filter for a wireless receiver. Specifications 293,462, 312,354, and 315,399, [all in Class 40 (v), Wireless signalling &c.], also are referred to.
Patent GB-696755-A (GB)
Title: Improvements in or relating to relief valves
IPC: B64D13/02
Filed: 1949-10-12
Abstract: 696,755. Fluid-pressure servomotor-control systems; valves. GARRETT CORPORATION. Oct. 12, 1949 [Dec. 20, 1948], No. 26200/49. Class 135 A relief valve for pressurized enclosures such as aircraft cabins comprises a main valve member operatively connected to a movable wall forming one side of a closed chamber and pilot valve means associated with the wall and controlling communication through the wall between the closed chamber and a zone of low pressure, e.g., the atmosphere on relative movement between the wall and the main valve member. As shown the movable wall or diaphragm 24 comprises outer, intermediate, and inner portions 24a, 24b, 24c respectively. The outer portion 24a is clamped to a cover or head 20 by a ring 31 and bolts 33 and is separated from a valve seat ring 22 by a number of U-shaped struts 21 the edges 21a of which serve as stops to limit the downward movement of clamping rings 27, 28 separating the diaphragm portions 24a, 24b. The diaphragm portions 24b, 24c are separated by clamping rings 34, 35. Bolts 35<SP>1</SP> secure the rings 34, 35 and the main valve member 47 to the diaphragm assembly, spaced bosses 47b allowing access of atmospheric pressure to the space below the inner diaphragm portion 24c. The latter has a central aperture surrounded by clamping rings 36, 37. The ring 37 has an annular pilot valve member 40 secured thereto. A light spring 49 urges the pilot valve 40 against a spherical seat member 46 affixed to the end of a threaded stem 45 having a restricted bleed orifice 44 therein. The member 45 is secured in adjusted position by a lock nut 48. The valve member has a knife edge rim 47a urged against the seat ring 22 by a light spring 41. Excess pressure within the cabin results in excess pressure within the control chamber 25 so that the pilot valve 40 is moved away from its seat 46 and the main valve 47 is then opened by cabin pressure acting on its under side. If the atmospheric pressure exceeds the cabin pressure by more than a predetermined amount, the diaphragm assembly is lifted off the stops 21a to admit more air to the cabin. The main valve may be opened at any time by a vent cock 51 opened at the will of the pilot through a jack, solenoid, cam and lever &c. In a modification, the pilot valve is constituted as the "insides" or core of the usual tyre inflating valve and is located in a casing supported on the diaphragm portion 24c. Specifications 694,235 and 696,808 are referred to.
Patent GB-735582-A (GB)
Title: Improvements in or relating to the securing of accessories by threaded securing members
IPC: B25B13/48
Filed: 1951-11-08
Abstract: 735,582. Locking nuts. COOKSON, E. Nov. 10, 1952 [Nov. 8, 1951], No. 26204/51. Class 89(1). [Also in Group XXII] An assembly of parts comprises a screwthreaded member 3 having a radially extending flange 3a to engage a shoulder 2a on an accessory 2 to be secured to a flange 1a on a body 1, such as an engine gear-box, and means 1b for securing a tool 4 to the accessory or body, the tool having a pinion 4a for engaging gear teeth on the threaded member to tighten it onto the body. The nut 3 is provided with a pin to engage a hole in the box 1 to lock the nut in position.
Patent GB-177182-A (GB)
Title: Improvements in the spinning of cotton and like fibres
IPC: D01H7/52
Filed: 1920-09-14
Abstract: 177,182. Edge, J., Edge, R. W., and Barlow, F. Sept. 14, 1920. Spindle apparatus; doffing - arrangements. -In ring - spinning, ring-doubling and like machines the yarn, after leaving the rollers, passes around the spindle in one or more coils to a freely floating guide, which reciprocates relatively to and rotates around the spindle and is capable of movement radial thereto, and thence back to the spindle on which it is wound in cop form. The spindle is longer than those usually employed, so that at any stage during the winding a bare portion extends above the cop, and may be of the mule type, as shown in Fig. 1, or of the Rabbeth type. The guide 10, Fig. 7, preferably forms part of a traveller of fine wire or stamped metal freely mounted in a ring comprising a sleeve t and a cap u secured thereto by a bayonet-joint. The cap may be readily removed for the insertion of the traveller; or the traveller may be sprung into a ring provided with grooves. The cops are raised and their tops bent over, as shown in Fig. 1, to hold them loosely until a few turns are wound on the spindle preparatory to commencing a fresh set. To facilitate this operation, a wire 12 or a grooved rod mounted on pivoted arms 13 is manually operated to move the yarns into the position shown in dotted lines. Specification 11035/92 is referred to. In one Provisional Specification travellers are described wherein the arms of the forks are bent to prevent the yarn from passing therefrom and to facilitate threading; a wire loop is slidable on a straight arm; and the straight arm is formed as a helical spring to allow it to be contracted when being placed in the ring.
Patent GB-605929-A (GB)
Title: Improvements in or relating to the manufacture of interpolymers of styrene with polyhydric alcoholic mixed esters and of coating compositions obtained therefrom
IPC: C22B11/02
Filed: 1946-09-02
Abstract: An industrial styrene solution is used as the initial material as source of styrene and solvent in the process of the parent Specification.  The industrial styrene solution is preferably obtained by distillation from coal tar or crude benzole or from aromatization of mineral oils.  If desired, it may be concentrated before use and terpenes may be added to the mixture.  Partially polymerized polyhydric alcoholic mixed esters with which the styrene solution is copolymerized include linseed stand oil, dehydrated castor oil, alkyd resins and the product obtained by heating together blown linseed oil and oiticica oil.  A solution of styrene in xylenes suitable for re-use in the process may be recovered from the product by distillation.  Specifications 575,766, 575,771 and 580,912 are referred to.
Patent GB-1065493-A (GB)
Title: Improvements in driving and straightening roller beds for continuous casting plant
IPC: B21D3/05
Filed: 1964-06-26
Abstract: 1,065,493. Straightening; continuous-casting apparatus. SCHLOEMANN A.G. June 26, 1964 [July 3, 1963], No. 26483/64. Headings B3E and B3F. A driving and straightening roller bed, for use with multi-strand continuous casting installations for the casting of strands of relatively small cross-section in curved chill moulds, comprises an upper set of rollers 2<SP>1</SP>, 3<SP>1</SP>, 4 arranged at a variable distance from a lower set of rollers 2, 3, 4, the upper rollers 2<SP>1</SP>, 3<SP>1</SP>, 4<SP>1</SP> being arranged in a yoke 12, and each set of rollers being driven by driving means arranged at one side thereof and being interconnected by gearing at the other side thereof. The yoke 12 is pivoted at 19 to an hydraulic piston 15, the cylinder of which is pivoted to a base 11 at 22 and is guided at its other end 14 for vertical movement by a piston 16 in a guideway 18 in the base 11. The upper rollers 21, 3<SP>1</SP>, 4<SP>1</SP> are driven from a motor and spindle through a worm (30), Fig. 4 (not shown), and worm-wheel (29) on the shaft of the roller 2<SP>1</SP>, interconnecting gears 28<SP>1</SP> on the other side of the rollers 2<SP>1</SP>, 3<SP>1</SP>, 4 transmitting the drive to the rollers 3<SP>1</SP>, 41. The lower rollers 2, 3, 4 are similarly driven from the motor through another spindle 6, the worm drive means (29), (30) being on the same side of the rollers 2, 3, 4 as the gears 28<SP>1</SP> of the rollers 2<SP>1</SP>, 3<SP>1</SP>, 4<SP>1</SP> and the interconnecting gears 28 being on the opposite side.
Patent GB-192447-A (GB)
Title: Direction indicator for motor vehicles
IPC: B60Q1/34
Filed: 1922-06-26
Abstract: 192,447. Hopkins, T. June 26, 1922. Road-traffic signals on vehicles.-A direction indicator for motor vehicles comprises two pivoted arms 1, 2 carrying electric lamps 6 and operated by Bowden wires 13 which are connected to two spring pressed levers 14 mounted in a double quadrant 16. Normally, the arms are retained in the vertical position, against the action of the springs 12, by pins on the levers 14, which engage holes in the quadrant and the lamps are then covered by stops 11. By releasing one of the levers 14, the corresponding signal arm is swung into the outward position by the spring 12. Both arms may be extended simultaneously by nipping the levers together and releasing them from the quadrant. The arms may bear arrows or signal words.
Patent GB-362903-A (GB)
Title: Improvements in electrical cut-outs
IPC: H01R13/68
Filed: 1930-09-05
Abstract: 362,903. Mercury switches. DAVY, W. J., 96, Chatsworth Road, East Croydon, Surrey. Sept. 5, 1930, Nos. 26567/30, 36148/30, and 3043/31. [Class 38 (v).] Mercury-thread cut-outs, having an expansion chamber 6 into which mercury is expelled upon rupture of the mercury column in the core 1 and a plunger or other device 13 which is raised when the mercury is expelled and is manually depressed to reform the mercury column, are made airtight so that loss of mercury and mercury vapour is prevented. In the form shown in the Figure a cone 7 is formed above the core 1 to prevent mercury returning to the core 1 till the plunger 13 is depressed. In modifications, Figs. 3 and 4 (not shown), the expansion chamber is arranged at the side of the core 1 and communicates with the passage in the core by channels above and below the latter. In another modification, Fig. 5 (not shown), the chamber 6 is bounded by a diaphragm to which the plunger is connected and in yet another, Fig. 6 (not shown), the plunger has a hollow spherical rubber body secured to it to make a close fit with the passage in which it slides.
Patent GB-1263066-A (GB)
Title: Improvements in or relating to turret tuners
Inventor: JOLLY RONALD HENRY CHARLES
IPC: H03J5/24
Filed: 1968-06-05
Abstract: 1,263,066. Radio receiving apparatus. PLESSEY CO. Ltd. 4 June, 1969 [5 June, 1968], No. 26688/68. Heading H3Q. In a turret tuner, in which the turret is motor driven, each of the tuning component carrying wafers 21 &c., Fig. 1, carries in addition to the normal tuning circuit contacts (not shown), a number, e.g. five of wafer coding contacts. These coding contacts co-operate with fixed spring contacts 39-42 which are connected to respective wafers 53-50, Fig. 2, of a fourwafer ganged control switch. The coding contacts are so interconnected on each wafer and the connections of the switch wafers 53-50 are such as to complete the circuit of a relay 48 except when the turret has taken up a position corresponding to that chosen by the switch. Contacts 49 are then closed, energizing motor 47 to rotate the turret until the chosen position is reached. In order to maintain the motor in operation in intermediate positions of the turret the relay 48 is maintained energized by means of contacts 44, 45 co-operating with a notched conductor disc 46 mounted on the turret shaft.
Patent GB-738124-A (GB)
Title: Improvements in rotary meters for measuring liquids
IPC: G01F3/08
Filed: 1953-09-29
Abstract: 738,124. Rotary meters. HERMAN, J. FAURE-. Sept. 29, 1953 [June 18, 1953], No. 26699/53. Class 110 (2). In a meter of the gyratory-piston type, the liquid being metered passes through the casing 1, 2 around the metering chamber 13, in approximately straight lines from an inlet 19 to an outlet 20. A by-pass allows excess liquid, returned from the delivery point, which may be an engine being supplied with fuel oil, to be led again to this point without its passing through the metering chamber. A window 7 exposes the rotary recording numbers of the usual geared system 18 which is immersed in the liquid being measured. A gyratory piston 11 is guided around its chamber by a pin 16 which engages a roller 14, supported on a peg 15. The piston may be drilled with lightening holes. The pin 16 drives a star-wheel 17 and thus the recording system. A port 21 allows the excess liquid returning from the delivery point to be re-delivered by way of the outlet 20, without being re-metered. Fig. 2 shows a by-pass, controlled by a needle-valve 24, which allows the passage of liquid around the meter when the latter is stopped. The piston 11 may be provided with a central depression 46, Fig. 5 (not shown) and lightening holes.