baber/WOPTO huggingface dataset:
Patent GB-390405-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J1/22
Filed: 1932-08-27
Abstract: 390,405. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd.. Crown House, Aldwych, London.-(Assignees of Young, A. H. ; 1136, Summer Avenue, Schenectady, New York, U.S.A.) Aug. 27, 1932, No. 24002. Convention date, Aug. 27, 1931. [Class 39 (i).] The heater wire o an indirectly - heated cathode e structure more particularly for arc rectifiers, high vacuum tubes a, n d lamps, is embedded in refractory insulating material which resists electrolysis and d i s separable at will from the cathode which consists of quadrant pieces forming an inner and outer cylinder connected by vanes ; the heater is located in the inner cylinder and concentric heat shielding cylinders are spaced from the quadrants and retain them upon the heater unit. A helical tungsten filament 10 is coiled in a rod 11 of zirconia, beryllia or highly fired alumina. A stiff molybdenum. wire is driven through the rod and serves as one lead. A wire thong 13 binds the other end of the heater to the rod and serves as the return lead. The combined coil and rod are dipped in water and then in a suspension of starch paste and fairly coarse highly fired pure alumina. The heater is then fired at a temperature of 1575 to 1600 C. in an atmosphere of moist hydrogen and may be sand-papered to fit snugly in the cathode. The heater rests in a metal tube which fits upon a glass leg sealed into the pinch. The cathode consists of quadrants fitted together to form concentric cylinders 6, Fig. 5, and vanes 7. The cylinders and vanes may be covered with barium carbonate and are surrounded by heat shields 8 with spacing depressions 9. The cathode is mounted on a rod 19 and spaced by insulation 20 from the grid 3 which is supported from a clamp 22 on the pinch by rods 21. A 110-volt heater with a coating 25 mils thick and overall diameter 170 mils, is stated to have a life of 4,450 hours.
Patent GB-367307-A (GB)
Title: Improvements in and relating to means for shifting the phase of alternating current circuits
IPC: H02M7/44
Filed: 1931-08-26
Abstract: 367,307. Phase shifting ; converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Bedford, B. D.; 329, Germania Avenue, Schenectady, New York, U.S.A.) Aug. 26, 1931, No. 24020. Convention date, Aug. 27, 1930. [Class 38 (ii).] Means for obtaining a voltage adjustable in phase by more than 180‹ with respect to that of the supply source 12 comprises a centre-tapped impedance 16 or other means for obtaining a point of intermediate potential, and a two-part circuit one part comprising a resistance 19 and the other part comprising an inductance 17 and capacity 18 one of which is adjustable. The dephased voltage occurring between the centre point of the impedance 16 and the junction of the parts of the two-part circuit is thus rendered adjustable as regards phase angle by more than 180‹ an may be applied as shown to the grids of a mercury vapour or other valve converter used for interchanging power between a D.C. circuit 10 and an A.C. circuit 11.
Patent GB-632609-A (GB)
Title: Drive for contra-rotating propellers
IPC: B64D35/04
Filed: 1947-08-30
Abstract: 632,609. Propelling aircraft. ARMSTRONG SIDDELEY MOTORS, Ltd., CLARK, T., and HARRIMAN, D. Aug. 30, 1947, No. 24046. [Class 4] [Also in Group XXIV] Gearing for driving contra-rotating propeller shafts 15, 16 arranged co-axially one within the other comprises a plurality of similar layshafts, means 24 symmetrically arranged around the shafts 15, 16 and a co-axial driving shaft 12, and journalled in a stationary casing 18. A gear 13 on the driving shaft 12 engages with gears 27 on sleeves 26 of the layshaft assemblies which are interconnected through torsion bars 32, 33 with sleeves 44, 36 carrying gears 50 and 41 respectively which are adapted to drive the shafts 15 and 16 in opposite directions by means of a gear 20 and an annulus 22 secured on these shafts. The sleeves 26, 44 and 36 are rotatably supported on each other and in bearings 28, 46, 37, 39 in the casing 18. The driving shaft 12 may be driven from an internal combustion turbine unit through a planetary gear of the kind disclosed in Specification 614,960, [Group XXIV].
Patent GB-442680-A (GB)
Title: An improved tethering appliance for byres or stables
IPC: A01K1/04
Filed: 1934-08-21
Abstract: 442,680. Tethering-appliances. DORSSER, M. VAN, 4, Bankastraat, Nijmegen, Holland. Aug. 21, 1934, No. 24070. [Class 20 (i)] A tethering-appliance for byres or stables comprises a pair of inclined tethering struts 2, 3 having their upper portions interconnected and both in the same or substantially the same plane, and a vertical or oppositely inclined rear stay 1 connected at its upper end to said tethering struts. The struts and stay may be interconnected by means of a top piece 4. The struts may be braced by a cross member 8, which also serves to prevent the fall of tethering rings or shackles 6, 7 on the struts. A water bowl 11 may be attached to the stay. Two or more stays may be provided instead of a single one. A rod 10 may extend from the tethering appliance to the floor 12 to act as a partition. Several such appliances may be used adjacent a feed trough or manger 9..
Patent GB-1415571-A (GB)
Title: Apparatus comprising a hydraulic drive motor or a hydraulic jack
IPC: B60K17/10
Filed: 1973-05-21
Abstract: 1415571 Hydrostatic transmissions VERLINDE SA 21 May 1973 [23 May 1972] 24161/73 Heading F2W  In a hydrostatic transmission in which a fixed displacement pump 3 driven at constant speed supplies pressure fluid to a drive motor unit 13 (comprising motors 14 and 15 as shown) which may comprise rotary motors or a hydraulic jack, the pump is guarded against excess output pressure by a relief valve 20 from which fluid returns to a reservoir 1, a proportion of the output of the pump passes through a control valve 33 and via pipes 36 and 27, a fixed throttle valve 18 and a variable throttle 53 to the reservoir, the rest passing via a reversing valve 10 to the motors 14, 15. The control valve 33 is biased on one side, 33b, by the pump output pressure and on the opposite side by a spring 34 and the output pressure taken from the output side of a variable throttle 39 (Fig. 2) of a control unit 8 which also incorporates variable throttle 53. The throttle valve 39 is varied by movement of a piston 40 against a spring 47 due to the pressure in a chamber 51 of fluid passing to the reservoir 1a via the valve 53, which pressure is adjusted by adjusting the force F on a piston 50 which controls the outflow from chamber 51 through an orifice. The force F is due to a solenoid 61 and is varied by a potentiometer 63. Variation of the potentiometer thus controls throttle valve 53 which in turn moves piston 40 to adjust throttle valve 39 and thereby adjust throttle valve 33 to alter the proportion of the pump output supplied to the motors. Controlled braking of the motors 14, 15 is achieved by a brake unit comprising two throttles, 23 and 24, the throttle 23 being of smaller aperture than throttle 24, which latter throttle has a safety valve 25 in series with it. On commencement of braking, when a valve 28 which by-passes brake unit 22 is closed, the flow through unit 22 will cause valve 25 to open if it is sufficient and so most of the flow will pass through throttle 24, only passing through the smaller throttle 23 when valve 25 closes due to the reduced flow as motors 14, 15 are slowed. The valve 28 is closed automatically to initiate braking by a spring 31 on reduction in pressure in the supply line 9 to the motors (sensed through pipes 30 and 30a) which may be caused by the pump stopping or variable throttle 39 being closed significantly. A check valve 32 allows fluid from the return pipes 36, 27 and 17 to pass to the supply line 9 to prevent cavitation during braking. The reversing valve 10 is spring biased to a neutral position and is moved by fluid supplied to one of two pilot servos 64, 65 through an electromagnetically controlled reversing valve 68 from the pipe 36. A valve 78 moves to isolate the servos 64, 65 and prevent the springs 66, 67 returning the valve 10 to its neutral condition before braking is completed, this valve being controlled by the pressure difference (#p 2 ) between the supply and return lines of the motors as shown.
Patent GB-363349-A (GB)
Title: Improvements in means for preventing backfiring and damage therefrom, in internal combustion engines
IPC: F02M1/00
Filed: 1930-08-12
Abstract: 363,349. Arresting flame due to backfiring; spray carburetters. BICHLER, C. H., 21, Rue Baron, Paris. Aug. 12, 1930, No. 24180. Convention date, Aug. 12, 1929. [Classes 7 (ii) and 7 (iii).] Consists in means or arresting flame due to backfiring, and for preventing the induction conduit from being blocked by hoar frost. The means may be situated on the air inlet side of the carburetter, in the carburetter, or between the carburetter and the engine. A casing 1, Fig. 1, is attached to the air inlet 2 of a carburetter and surrounds a central tube 4 which, at its lower end, is provided with a flame-proof scr en 3. In the annular space between tube and casing are arranged annular partitions 5. If a backfire occurs, the flame mainly enters the tube 4. If the screen 3 becomes blocked by frost, the annular spaces provide for the passage of air. In a modification, the ducts are of circular cross section and the tube and partitions are supported by riveted stays. In a further modification, Fig. 5 (not shown), the upper end of the tube 4 is of funnel shape. In a still further modification, Fig. 6 (not shown), perforated annular baffles are secured, in the annular space, alternately to the tube and casing. In Fig. 7, the tube 4 and partitions 9 surround the nozzle 13 of the carburetter, the flame-proof screen being shown at 3. Where multiple carburetters are employed, Fig. 8 (not shown), the suction conduits are connected by a balancing tube.
Patent GB-599579-A (GB)
Title: Improved building unit for acoustic constructional purposes
IPC: E04B9/00
Filed: 1945-09-19
Abstract: 599,579. Building-units for sound insulation. CULLUM, D. J. W. Sept. 19, 1945, No. 24191. [Classes 20(iv) and 87(i)] A rigid, fire-resistant, sound-insulating unit for walls, partitions or ceilings consists of inner and outer facing sheets 1, 2 of plastic or plastic-bonded material, one or both being perforated, solidly united by closely-spaced webs 3 which define a series of passages between the sheets which are filled with slagwool, kapok, &c. 5. The sheets and webs may be formed of a synthetic resin or resin-bonded paper united by heat and pressure or the unit may be moulded or extruded by the use of a suitable plastic. Examplary dimensions are: sheet thickness, # inch, web spacing, two inches, unit thickness, one inch. The unit may have bevelled edges and be closed all round when the passages have been filled.
Patent GB-204505-A (GB)
Title: Improvements in connection with turbines for utilizing tides or currents for producing electricity and for other purposes
IPC: F03B17/06
Filed: 1922-09-07
Abstract: 204,505. Adair, T. M. Sept. 7, 1922. Screw motors.-A turbine installation adapted to be submerged and anchored in a tide-race or current comprises one or more blade-wheels A mounted in a structure B which is free to rise and fall and to turn through half a revolution on a mast H so as to face the current for each direction of tide. Alternatively, the structure may be pivoted by means of links N about a mast M. The structure is turned by a tail-vane E, which may be assisted by a screw propeller driven by manual or other power. The wheels A may rotate in opposite directions, and floats and outriggers are provided to facilitate balancing.
Patent GB-1515144-A (GB)
Title: Electronic ignition circuit for an internal combustion engine
IPC: F02P3/04
Filed: 1975-06-05
Abstract: 1515144 Ignition systems DUCELLIER & CIE 5 June 1975 [27 June 1974] 24245/75 Heading F1B In an ignition system comprising an ignition coil 5 actuated by a triggering circuit 1 via a transistor amplifier including a control transistor 2 and a pair of output transistors 3, 4, rapid blocking of the flow of current through the ignition coil without oscillations is ensured by an anti-interference circuit comprising a capacitor 16 and resistor 13 providing positive feedback to the base of the transistor 2 from the points A, B or C in the circuit, and diodes 11, 15 respectively isolating the triggering circuit 1 and permitting a rapid discharge of the capacitor 16.
Patent GB-1077039-A (GB)
Title: A choline derivative and therapeutic compositions containing it
IPC: A61K31/205
Filed: 1966-05-31
Abstract: Choline dipropylacetate is prepared from the parent acid and base. The compound may be used to reduce the cholesterol level of the blood or for the prevention or cure of liver damage, and may be administered in the form of pharmaceutical or veterinary preparations containing it in association with a diluent or carrier.
Patent GB-1433822-A (GB)
Title: Process  for the removal of hydrogen sulphide from molten  sulphur
IPC: C01B17/027
Filed: 1973-05-22
Abstract: 1433822 Removing H 2 S from molten sulphur SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 22 May 1973 [24 May 1972] 24291/73 Heading C1A H 2 S is removed from molten sulphur by introducing a finely divided oxidizing gas under pressure and a nitrogen-containing compound into the S confined en masse in a tank. The oxidizing gas may be air, O 2  and/or SO 2  together with N 2  or steam. NH 3 , an ammonium salt, alkyl amine, hydroxyalkyl amine, urea or a substituted derivative of these organic N- containing compounds may be added in an amount of from 20-1000 p.p.m. by wt. to the S. Liquid diethanolamine or di-isopropanolamine are preferred. Molten S derived from a Claus plant may be introduced into the small compartment 5 of heated vessel 2 via line 1. An oxidizing gas, heated in steam jacket 9, is introduced at an excess pressure of 0À5-1À0 atm. via manifold 10 into the bottom of the openended cylinder 6 under the surface of the molten sulphur. A N-containing additive is also introduced in the molten S via a steam heated line from doser 13. Excess sulphide-free S in the compartment 5 is discharged therefrom over weir 14 into a larger collecting compartment 5 from which the S is removed via pump 15 and line 16. Spent oxidizing gas is steam injected into a Claus plant via lines 17 and 19.
Patent GB-150327-A (GB)
Title: An improved combined burner and gas generator unit
IPC: F23D11/44
Filed: 1920-08-20
Abstract: 150,327. Water-Oil Burner Co., (Assignees of Grant, A. E.). Aug. 21, 1919, [Convention date]. Oil gas; fixing.-A burner and gas generator unit, particularly suited for use in combustion chambers of steam boiler &c. furnaces, comprises a perforated-tube burner 2 supplied with a superheated steam and oil vapour mixture which is generated by the burner and is heated in a coil or chamber 9 to a temperature estimated to be over 3700 F. The mixture is thereby converted into a fixed dry gas, and excess gas may be drawn off or stored for heating and illuminating purposes. The steam is obtained from a boiler 4 arranged on the burner-box 3 and into which water flows from a main 20 through a reducing- valve 21, pipe 22, check valve 23, equalizing- chamber 24, pipe 25, and hand and automatic shut-off valves 26, 27. The reducing-valve 21 maintains the water pressure constant at about 10 pounds per square inch. The steam passes through a sinuous superheating-coil 5, an expansion chamber 6 and a pipe 40, to a screw-adjusted injector-nozzle 7 in a casing 42 at the entrance to the chamber 9. The steam issuing from the nozzle 7 over an oil nozzle 8 induces a supply of heated oil or oil vapour through a pipe 11 from a small auxiliary oil tank 10 in which the oil level is maintained at constant level below the injector by a float-valve 60. The pipe 11 is fitted with a check-valve 62, and passes through the expansion chamber 6. The burner is started by burning oil poured on an asbestos pad 70 at the bottom of the burner-box 3. If the flame is accidentally extinguished, the production of steam is immediately stopped so that the oil supply ceases. The water supply continues until it issues from the burner 2 and drops into a cup 30. The cup 30 is attached at one end to the stem 31 of the valve 27 so that the weight of the water causes the cup to overbalance and closes the valve. The valve 27 comprises a conical plug which is pressed against its seating by a spring. In a modification, the injector nozzle 7 is fixed and an adjustable reducing-valve maintaining the steam pressure at about 5 pounds per square inch is interposed between the nozzle and the expansion chamber 6 to regulate the flow of steam and the height of the flame. A hand-operated globe valve may be fitted in addition to, or in substitution for, the reducing-valve.
Patent GB-451540-A (GB)
Title: Improvements in tie-rod joints
IPC: F16C11/06
Filed: 1935-08-30
Abstract: 451,540. Universal joints. THOMPSON PRODUCTS, Inc., 7781, Conant Avenue, Detroit, Michigan, U.S.A. Aug. 30, 1935, No. 24316. Convention date, Aug. 30, 1934. [Class 65 (ii)] A universal joint for the steering gear linkage of motor vehicles comprises a segmental spherical head 19 constantly urged into engagement with a conical seating 14 or a seating so curved as to separate from the spherical surface and thereby giving only circular line contact. The head may be case-hardened and the conical seating made of mild steel. The socket member 12 may be made by upsetting and forging the end of the link 11 and providing it with a bore including the conical seating portion 14 and an outwardly flared bottom aperture 16 to permit the swivelling movement of the shank 26 of the segmental spherical headed member. The seating may be a separate conical ring of phosphor-bronze, push-fitted in a cylindrical bore of the socket member. The segmental spherical head 19 has a flat top 20 on which presses a coil spring 22 the other end of which bears on a disc 23 retained in the bore of the socket member by spinning over the metal 24 at the top of the bore. A dirt-excluding washer 27 is fitted on the shank 26.
Patent GB-617995-A (GB)
Title: Improvements relating to foldable shelves or plate racks
IPC: F24C15/12
Filed: 1946-08-16
Abstract: 617,995. Plate racks for gas cookers. RADIATION, Ltd., STRINGER, W. L., and BARNES, W. E. Aug. 16, 1946, No. 24423. [Class 126] [Also in Group XXV] A foldable shelf or plate rack a is provided with a pair of attachment pieces b each formed with a curved slot d for engagement with a projection f on each end of the rack, a link g at each end of the rack being pivotally connected with both the attachment piece b and the rack a, the lower part of the slot d having a backwardly directed recess e into which the projection f slides to secure the rack a in a horizontal position, and the rack, on being pulled forward so that the projection f slides into the slot d, being lowered into a vertical position and held by a spring-loaded catch ball or detent h in engagement with a recess i in each attachment piece b. The attachment pieces b may be of channel section.
Patent GB-187105-A (GB)
Title: Improvements in securing bags or packets made of paper or other material
IPC: B65D33/18
Filed: 1921-09-14
Abstract: 187,105. Farrelly, J. Sept. 14, 1921. Securing bags, special means for.- Paper or paper and cloth bags of the ordinary square-bottomed type are provided on the inside of the rim of the mouth RRHH, Fig. 6, with a strip of adhesive. The parts so treated are drawn together forming triangular flaps HOE, HSJ. The parts CRH, DRH, Fig. 7, are then detached along the perforations provided for the purpose, and the whole adhesive strip CD is folded on to the part HH. The flaps are then flattened, as shown in Fig. 9, and then turned inwards and secured by moistening the adhesive strips to complete the closure. According to another method of closing the bag, the mouth may be slit at two points, and part thereof secured to the other part at a lower level than the edge around not less than half of the mouth of the bag, or a separate adhesive strip may be used in addition to the adhesive on the bag. When bags with linings are used, both outer bag and lining are coated with adhesive.
Patent GB-999473-A (GB)
Title: Improvements in or relating to deflection systems for cathode ray tubes
Inventor: BERZINS GUNARS
IPC: H04N5/46
Filed: 1960-07-13
Abstract: 999,473. Valve sawtooth circuits. COMMUNICATIONS PATENTS Ltd. Oct. 11, 1961 [July 13, 1960], No. 24476/60. Heading H3P. In television apparatus for operation on more than one line frequency, transient oscillation is minimized by an additional winding or windings L3, L4 brought into circuit at the higher line frequency. As shown, the deflection coils 4 are connected by switch 3 to point 6 for 405-line operation or to point 8 for 625-line operation. The line oscillator frequency is changed by a further switch (not shown) ganged to switch 3. The leakage inductance of the e.h.t. winding L2 is tuned to the third harmonic of the resonant frequency under flyback conditions, the tuning being changed by windings L3, L4, brought into circuit by switch 2 when operating at 625 lines. Transient oscillation is thus minimized. A rectangular-yoke, gapped-core transformer is specified. One of the windings L3, L4 may be omitted. Tappings may be provided on L3, L4 for operation on other line frequencies. A pulse may be obtained from lead 10 to control a flywheel synchronizing circuit. A resistor 11 may be included to maintain constant the e.h.t. Voltage, obtained from rectifier V3, at the different line frequencies.
Patent GB-251849-A (GB)
Title: Mechanical grate
IPC: F23H9/02
Filed: 1925-10-01
Abstract: 251,849. Makariew, T. Oct. 1, 1925. Firebars and grates.-A horizontal or inclined grate is formed of transverse rotary hollow firebars carrying discs, means being provided for circulating water, steam or air through the bars for cooling purposes. As shown in Figs. 4 and 5, the bars comprise tubes A mounted in bearings and may be square or circular in crosssection at that portion of their length with which the discs D engage. The bars are rotated by worm or other gearing N. Water, steam or air is led into the bars by pipes C. Shafts K are arranged beneath the grate bars each of which carries scrapers L, S engaging with the peripheries of and the spaces between the discs.
Patent GB-318106-A (GB)
Title: Improvements in liquid measuring and dispensing apparatus
IPC: G01F11/04
Filed: 1929-08-12
Abstract: 318,106. Thorne, R. C. Aug. 27, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Fixed-chamber apparatus.-Apparatus for delivering measured quantities of lubricating oil or other liquid comprises a measuring chamber 1, a supply pipe 24 controlled by a valve 31, discharge openings 8, 9 controlled by a valve 48, trigger mechanism 41 for actuating the valves and a locking device for preventing discharge until the measuring chamber has been filled. Movement of the trigger 41 opens the valve 3 through the medium of a cam 52. The discharge ports 8 are simultaneously closed through the linkage 46, 47 against the action of a spring 49. As the lower end of the trigger bar 16 is withdrawn from a slot in a sector plate 55 the latter is rotated on account of its toothed engagement with a toothed spring-stressed sleeve 53. Return of the trigger 41 is thus prevented until the fluid lifts the piston 17 against the spring 20 into engagement with the sleeve 53. During its previous movement this has been depressed on account of the engagement of a pin fixed in the tube 5 with a helical slot in the sleeve. On this being lifted by the piston 17 the rotation imparted to the sector 55 brings its slot into alignment with the trigger bar 16. The trigger may then be returned to cause the valve 48 to uncover the discharge ports 8.