baber/WOPTO huggingface dataset:
Patent GB-974772-A (GB)
Title: A self-braking driving device for the operating shaft of a venetian blind, rolling-shutter or similar closure means
IPC: E06B9/307
Filed: 1962-06-07
Abstract: 974,772. Braking devices. HUNTERDOUGLAS INTERNATIONAL (QUEBEC) Ltd. June 7, 1962 [June 9, 1961], No. 22156/62. Heading F2E. [Also in Divisions A4 and E1] A self-braking device for a Venetian blind, a rolling shutter or the like extending around an operating shaft driven by a driving device comprises a housing 2, 3, Fig. 1, accommodating a braking device 17, 18, which becomes operative when the weight of the Venetian blind or the like exercises a torque on the operating shaft and becomes inoperative when the operating shaft is driven by the driving device. The brake-operating device comprises two co-operating parts 16, 15 mounted on the operating shaft 10 to be respectively non- rotatable relative to the shaft and rotatable over a small angle relative to the shaft and the part 16 and is put into or out of operation by the latter relative rotatory movement. As shown in Fig. 1, a tubular part 9 mounted on the shaft 10 is provided with projections 8, 13, the latter being disposed with a limited amount of clearance in recesses 14 in parts 15, 16 and the facing surfaces of parts 15, 16 are provided with cams. If the driving end 5 is rotated the bevel gears 6, 7 drive the tubular part 9 through projections 8 which in turn, via the projections 13, drives the parts 15, 16. The part 16 is formed with an internal projection which engages in a groove 12 in the shaft 10 so that rotation of the part 16 rotates the shaft 10 to raise or lower the blind. When the drive is removed the weight of the blind will rotate the shaft 10 and the part 16 so that the cams on the facing surfaces of the parts 15, 16 will urge the friction surface 17 on the part 15 against the friction surface 18 in the housing portion 3. In another embodiment, Fig. 4, removal of the drive allows the weight of the blind to rotate a disc 26 formed with arcuate recesses 27, which clamps rollers 28 carried in a cage 29 between the housing and the disc. In a further embodiment projections on the tubular part 9 co-operate with recesses in a part non-rotatable relative to the shaft 10 so as to move a friction surface provided on the latter part away from a friction surface in the housing on rotation of the driving end 5. When the drive is removed the weight of the blind rotates the shaft 10 and the latter part relative to the part 9 so as to permit a spring to force the two friction surfaces together.
Patent GB-723597-A (GB)
Title: Improvements in or relating to carburetted water gas plants
Inventor: RUSCHIN KURT
IPC: C10J1/213
Filed: 1953-08-31
Abstract: 723,597. Gas producers. POWER-GAS CORPORATION, Ltd. Aug. 31, 1953, [Sept. 4, 1952.] No. 22229/52. Classes 55 (1) and 55 (2). In carburetted water gas plant blow gases with secondary air pass downwardly both through a carburetter 12 and a single superheater 13 and up-run gas to which oil &c. is added co-currently or counter-currently follows the same course. The superheater is disposed below the carburetter which in the form shown comprises an inlet chamber 34 containing chequer bricks 30 separated by an arch 29 from a lower empty chamber 35 having oil nozzles 31. Secondary air is admitted to the blow gases through a conduit 26 and scurfing air may also be radially or tangentially introduced into chamber 35. A back-run period may be included in the cycle with steam superheated by being supplied to the base of the superheater. A single vessel may house both carburetter and superheater, downwardly directed nozzles being disposed in the arch between the packed and unpacked portions of the carburetter. Instead of a producer embodying a distillation retort 11 and vertical ducts 16 leading to an annular chamber 15 connected to the carburetter, an ordinary water gas producer may be employed.
Patent GB-1138979-A (GB)
Title: Secondary cell
Inventor: INSINGA LAWRENCE PHILIP
IPC: H01M50/434
Filed: 1966-05-19
Abstract: 1,138,979. Separators for secondary cells. WESTERN ELECTRIC CO. Inc. 19 May, 1966 [4 June, 1965], No. 22242/66. Heading H1B. A separator for use between the electrodes of a secondary cell comprises particles of zirconium or hafnium oxide in a binder of polytetrafluoroethylene. The weight ratio of oxide to polymer is preferably between 3 and 10, the oxide particles preferably have a mesh size (U.S. Standard Mesh) of 25 to 100 and the specific gravity of the polymer is preferably from 2À13 to 2À25. A button form of a sealed alkaline cell is shown comprising two positive plates 11 and 12 of nickel joined by conducting strip 15 and two negative plates 13 and 14 of cadmium joined by conducting strip 16. Between the electrodes are separators 17 according to the invention and the whole assembly is enclosed in a sealed casing comprising a metal bottom part 18 and a metal lid 19. The bottom and lid are sealed with a resilient insulating gasket 20. The preferred electrolyte is KOH at concentrations of 20 to 45%.
Patent GB-436282-A (GB)
Title: Method of removing galvanic or electrolytic deposits of metal from a cathode
IPC: C22B7/00
Filed: 1934-01-09
Abstract: 436,282. Removing electrolytic deposits. EVANS, W. E., 27, Chancery Lane, London.-(Kelaen Special Sheet Holding Soc. Anon.; 33, Konigring, Luxemburg) Jan. 9, 1934, No. 22321 /33. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 10, 1934.] [Class 41] Electrolytic deposits of metal are loosened from cathodes by dissolving the metal on particular surfaces or along particular lines as desired, the solvent selected being one which reacts with the deposit but does not attack the cathode, for example, an acidic oxidizing agent or an acid. The cathode may be made of material passive in the presence of acidic oxidizing agents. For example, chromium steels, and steels which in addition to chromium contain nickel, may be used as cathodes, and copper deposited thereon can be removed with dilute nitric acid or sulphuric acid. Metal films soluble in dilute sulphuric acid can be removed from lead, zinc films on iron can be removed by alkaline solutions, or rare metals such as platinum or carbon or substances containing carbon can be used as cathode material when solvents to which they are resistant are employed. Only those parts of the cathode from which the deposit is to be loosened need be formed of the resistant material. In depositing the metal, means may be used to ensure that the deposit is thinner at the places where loosening is to be effected. For example, a cathode may be arranged between two parallel anodes, the form of the cathode being such, by reason of being tapered towards or provided with channels or recesses at the edges where the deposit is to be dissolved, that the distance from the anodes is greater at these places and the deposits correspondingly thinner. Alternatively, screens may be used to ensure thinner deposits at the edges of the cathode. If steels passive in the presence of acidic oxidizing agents such as mixtures of nitric and sulphuric acids are used as base materials, it is unnecessary to keep on supplying fresh oxidizing agents. Thus instead of nitric acid or a mixture of sulphuric and nitric acids, a mixture of sulphuric acid and sodium nitrate may be used, only the sulphuric acid being renewed and the sodium sulphate removed by crystallization. The method can be used with or without the provision of separating sheets between the cathode base and the deposit.
Patent GB-1512887-A (GB)
Title: Apparatus for automatically measuring the resorption time of the froth of a liquid product
IPC: G01F23/292
Filed: 1976-05-28
Abstract: 1512887 Measuring froth duration photoelectrically BRASSERIES KRONENBOURG SA 28 May 1976 [24 Dec 1975] 22328/76 Heading G1A To measure how long a froth on a liquid persists, the liquid, e.g. beer, is automatically discharged from a funnel 13, Fig. 1, into a graduated pipe 18 along which passes the light path between a source 35 and photo-cell 33. Clockpulses are counted while the path is obscured by the froth. The froth tends to persist longest around the edges of the pipe, so the light path is near the edge and the pipe is rotated so that the edge regions are scanned by the path.  The discharge of the beer is performed by an electromagnet which operates a valve in the funnel. The apparatus operates automatically.
Patent GB-796254-A (GB)
Title: Improvements in or relating to gear pumps
IPC: F02F1/12
Filed: 1956-07-19
Abstract: 796,254. Multiple gear pumps. BORGWARNER CORPORATION. July 19, 1956 [July 22, 1955], No. 22401/56. Class 110 (2). In a multiple gear pump at least one of the bushings of each of the driven gears or the adjacent face of each of said gears is provided with a relief recess such as 65 which communicates with a low-pressure zone through a pair of channels 76. Specification 572,967 is referred to.
Patent GB-1379059-A (GB)
Title: Railway car having a fail safe suspension system for controlling car body roll
IPC: B61F5/22
Filed: 1972-05-12
Abstract: 1379059 Railway vehicle undercarriages SUMITOMO METAL INDUSTRIES Ltd and MITSUBISHI DENKI KK 12 May 1972 22432/72 Heading B7L  A fail-safe railway car suspension system to control car body roll, using air springs 5, 5<SP>1</SP> adapted to be disposed between the car body 8 and chassis 6 (e.g. a bolster as shown), has a normal roll controlling apparatus comprising air feeding valves 2, 2<SP>1</SP> and air exhausting valves 3, 3<SP>1</SP> in pipes connecting the air springs 5, 5<SP>1</SP> with an air reservoir 1, the valves 2, 2<SP>1</SP>, 3 and 3<SP>1</SP> being operated by signals from a controller 9, and a checking circuit 15 which, on detecting abnormal lateral acceleration of the car body relative to the chassis after failure of the normal roll controlling apparatus, operates either the air feeding valves 2, 2<SP>1</SP> (as in Fig. 2) or further air exhausting valves 7, 7<SP>1</SP> (as in Fig. 1) so that spacer means 4, 4<SP>1</SP> are engaged to hold the body 8 laterally centred relative to the chassis 6. In Fig. 1, the spacer means 4, 4<SP>1</SP> are elastic projections 4 1  and 4 1 <SP>1</SP> carried by a base 10 on the chassis 6 to support the car body 8 via corresponding projections on the underside thereof, after the springs 5, 5<SP>1</SP> have been exhausted. In Fig. 2, the spacer means 4, 4<SP>1</SP> comprise slotted members 13, 13<SP>1</SP> attached by pins 14 and 16 to the car body 8 and chassis 6 so that after sufficient air has been fed to the springs 5, 5<SP>1</SP>, the body 8 is held at a fixed height relative to the chassis 6.
Patent GB-485822-A (GB)
Title: Improvements in means for supporting firearms on movable basements
IPC: F41A23/00
Filed: 1937-08-16
Abstract: 485,822. Gun platforms. AKTIEBOLAGET BOFORS, HAMMAR, V., ALDRIN, H. W., and DAHLBACK, G. Aug. 16, 1937, No. 22447. [Class 92 (i)] Relates to levelling devices for gun platforms of the kind in which the platform 1 is supported on a circular race 14 itself supported on a second circular race 2 arranged at right-angles to the first and carried on a base member 3. According to the invention, the turning axes of the two races are located in the same plane, the point of intersection of the axes being located on the trunnion axis P of the gun or guns. In the form shown, the races are arranged on each side of the platform parts and include ribs such as 4, 5 embraced by rollers such as 7, 8. Lateral rollers such as 9 are also provided for each race. Adjustment is effected by rotating shafts 20, 12 carrying pinions 19, 11 for engagement with toothed sectors 18, 10 respectively. Adjustment may be effected either by hand or by motors distantly controlled by gyroscopic means.
Patent GB-861329-A (GB)
Title: Improvements in and relating to fuel elements for nuclear reactors
Inventor: COATES GRAHAM
IPC: G21C3/32
Filed: 1958-07-14
Abstract: 861,329. Nuclear fuel elements. A.E.I.-J. THOMPSON NUCLEAR ENERGY CO. Ltd. July 10, 1959 [July 14, 1958], No. 22504/58. Class 39(4). In a nuclear reactor fuel element support assembly each element is hung vertically from the upper end to permit downward expansion and to prevent bowing. As shown, the elements 2 are arranged in two concentric circles round vertical pillar 1 and are hung freely from upper spider 3 by spindles 11 and collars 12. The element lower ends are located at lower spider 13 by the spindles 17 and are clear of the upper face of 13 to permit downward expansion. Pillar 1 is of graphite, the spiders of zirconium alloy and the element sheathing is beryllium. The assemblies may be stacked vertically by the engagement of the spigot 18 with the corresponding recess 20 of the lower assembly. Specification 861,222 is referred to.
Patent GB-382341-A (GB)
Title: Improvements in and relating to heat units for use in vulcanizing rubber articles
IPC: B29C35/00
Filed: 1931-08-11
Abstract: 382,341. Portable vulcanizers. HONEYMAN, K., Rocklea, and DOUGHERTY, H. R., Belfast Street, Yeronga, both in Queensland, Australia. Aug. 11, 1931, No. 22662. [Class 70.] A portable vulcanizer comprises a pad of combustible material, a tape and means for maintaining the tape in contact with the pad ; an igniting substance and a friction element, one on the pad and the other on the tape, so that on pulling the tape ignition occurs. As shown in Figs. 1, 2, and 2a, a pan B contains a combustible pad C carrying igniting composition D. A tape E extending over C, carries an abrasive surface F. A light perforated metal plate G is held in position by constrictions J. A sheet of waterproofed paper K keeps pad and igniter dry. The edges of the holes in plate G can be used to roughen rubber surfaces prior to applying a patch.
Patent GB-232500-A (GB)
Title: Gate valve for media of high pressure and high temperature
IPC: F16K3/18
Filed: 1924-09-26
Abstract: 232,500. H³dig, G. Sept. 26, 1924. Wedging or jamming; casings. - A gate valve suitable for use with high temperatures and pressures is provided with a wedge device for pressing it to and from its seating at the moment of closing and opening, and with a sleeve which is moved into position to make the pipe-bore continuous when the valve is open. The closure disc 2 has at its upper end a rigid guide frame composed of two sleeves 3, 4 and two cross-bolts 5, 6. Each sleeve 3, 4 is mounted to slide longitudinally on bolts 7, 8, the ends of which are guided on vertical ribs 9 in the casing. The cross-bolt 5 is provided with a nose 11, Fig. 4, which engages in a recess 16 when the valve is closed. The cross-bolt 6 has a short inclined surface 12 for engagement with a cam surface 22 on the wedging member 20, Fig. 7, to lift the valve from its seating. The bolt 6 also has a nose 13, which, when the valve is lifted, strikes against a face 29 of a lever 28, and so causes this lever to move the sleeve 33 into such a position that it shuts off the fluid conduit from the recess 1 in which the valve is accommodated when in the open position. The wedge 20, Fig. 7, which is carried by the operating member 23, is provided with an inclined face 21 engaging with a similar inclined face on the back of the disc 2. In opening the valve, the disc 2 is first lifted off its seating by the engagement of the cam surface 22 with the inclined surface 12, until the nose 11 clears the recess 16. The valve then moves vertically into the recess 1 and is guided by the ribs 9, until the nose 13 operates the lever 28 to move the sleeve 33 into its operative position.
Patent GB-1030516-A (GB)
Title: Improvements in or relating to automatic dispensing of liquids
IPC: B01L99/00
Filed: 1963-06-07
Abstract: 1,030,516. Sampling liquids. CKD DUKLA NARODNI PODNIK. June 7, 1963 [July 21, 1962], No. 22851/63. Heading B8N. [Also in Division F1] Specimens of liquid and/or reagents are dispensed from pipettes, e.g. to a photometric analyser, by pressure pulses in a pneumatic circuit operated either hydraulically or by a bellows. In Fig. 1, the specimen liquid from overflow tank 39 flows through nozzle 63 into U-tube 64 having an overflow 68 leading to a reservoir 72 which, when full, is emptied by syphon 73 into reservoir 75. Emptying of reservoir 72 sets up a suction pulse in line 44 to cause pipette 38 to fill with the specimen liquid and pipette 45 to fill with a reagent supplied by a constant level tank 47 floating in a constant level tank 54. A suction pulse is also set up in tube 77 to cause emptying of the chamber 82 of a photometer. As tank 75 fills, a pressure pulse set up in tube 81 cuts off the flow of liquid through overflow 68 into tank 72. Finally, tank 75 is emptied by syphon 79 and when the end of tube 80 is uncovered. the rise in pressure in pipe 44 causes the liquid in pipette 45 to flow into a mixing chamber 50 from which the mixture flows into a second mixer 60 and then into the chamber 82 of the photometer. after which the cycle is repeated. Additional pipettes may dispense other reagents into chamber 56 or chamber 60 and a float in tank 75 may operate a cut-off switch in the photometer while the solution in tank 82 is changing and upon interruption in the inflow of the specimen liquid into the apparatus. In Fig. 2, the pressure pulses for operating the specimen liquid tank 138 and the reagent pipettes 142, 143, are set up by a bellows 147 operated by a cam-actuated lever 148. Additional bellows 155 for emptying the photometric tank 82 is operated by a lever 148, the lever operating cam being on a shaft driven by an electric motor. Bellows 147 is operated to first draw the specimen liquid from chamber 134 into tank 138 and simultaneously fill pipettes 142, 143 with reagents. When all the liquid has been drawn into tank 138, the pipe 146 becomes open to atmosphere whereby pipettes 142, 143 empty into pipe 141 and chamber 139 respectively. The reagent in chamber 139 is sucked into chamber 138 simultaneously with the specimen liquid in chamber 134. Bellows 155 is then operated to initiate a syphon to empty photometer tank 82. A cam 154 on shaft 115 renders the photometer measuring circuit operative while the liquid in tank 82 is charging. In a modification, means are provided to flush the photometer tank 82 with specimen liquid in between measuring cycles. The pipette outlets may be enlarged gradually or in steps and the upper portions of the pipette chambers may be constricted.
Patent GB-384681-A (GB)
Title: Improvements in and relating to synchronous electric motors
IPC: H02K7/02
Filed: 1931-05-01
Abstract: 384,681. Motors. FERRANTI, Ltd. and HOLMES, W., Hollinwood, Lancashire. May 1, 1931, No. 22880/32. Divided on 379,383. [Class 35.] Motors with h unwound iron armatures; driving arrangements.-An alternating current synchronous motor in which synchronous running is attained automatically upon the rotor being set in motion at a speed in excess of synchronous speed and then allowed to slow down, comprises a rotor possessing a small moment of inertia resiliently coupled either permanently or prior to synchronization with a member having an appreciable moment of inertia such as a flywheel. In one form of motor, Fig. 1, which is described in Specification 379,383, a flywheel o is loosely mounted on a sleeve e carrying rotor discs c, d and is coupled to the sleeve through a spiral spring p. In a modification, Fig. 3, a rotor disc i rigid on a shaft f is integral with a pinion p and clutch member q. A flywheel o is loose on the shaft and is coupled through a spring r with the second clutch member s. The clutch is disengaged either manually or automatically by means of a cam x, lever u and grooved member t.
Patent GB-392520-A (GB)
Title: Improvements in or relating to electrical winding apparatus, more particularly for paper and rubber working machines
IPC: B65H23/195
Filed: 1931-08-13
Abstract: 392,520. Maintaining defined speed of motors. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Aug. 13, 1931, No. 22897. Convention date, Aug. 25, 1930. Void [Published under Sect. 91 of the Acts]. [Class 38 (iii).] The tension of a web of paper &c., being wound, is indicated or automatically adjusted by a device which compares the power of the motor performing the winding with the speed of the web. In one system, the winding motor 8 and the last motor 7 of the drying section of a paper machine are supplied by a Ward- Leonard generator 1. A moving-coil instrument 12 measures the power of the motor 8, it has coils in series and shunt to the motor armature, and a separately excited coil 16 adjusted to compensate for the no-load current of the motor. The torque of this instrument is opposed by that of another 21 which measures the voltage supplied to the motor 7 and hence the speed of the web. The resultant movement of the two instruments operates a field-regulator 10 for the motor 8. The tension of the web is determined by the current in the field-coil 25 of the instrument 21, and this can be adjusted by a rheostat 27, which if desired may be operated automatically by an instrument 28 so as to keep constant current in the coil 25 even though the voltage of the supply 5 should vary. A modification is described, wherein the motors 7, 8 are supplied from constant voltage mains, in which case the rheostat 10 controls the field of an auxiliary generator in series with the motor 8.
Patent GB-656450-A (GB)
Title: Improvements in or relating to covers for lavatory seats
IPC: A47K13/16
Filed: 1949-09-05
Abstract: 656,450. Sanitary closets. POWELL, G., and WEST, A. BOWEN-. Sept. 5,1949, No. 22928. [Class 26] A cover of the kind described in Specification 325,738, [CLass 26], for a sanitary closet seat consisting of a sheet of tissue such as paper has its elliptical centre portion attached at both ends by curved perforated parts and is also perforated across its centre to permit it to be separated into two sheets of toilet paper. As shown a sheet is formed with a portion 1 to fit the closet seat to which a central portion 2 is attached to the outer portion by perforations 4 and is also provided with perforating 5 across its centre so that the centre portion may be detached in two portions for use as two sheets of toilet paper. Between the perforations 4 the centre portion is severed from the outer portion by cuts 3. The sheets may be formed as, and readily removable from, a pad. The sheets may be medicated or waterproofed.
Patent GB-821904-A (GB)
Title: Improvements relating to ammonia pumping systems for gas-type machines for developing photosensitive sheets
Inventor: WILDE FREDERICK GEORGE
IPC: G03D7/00
Filed: 1957-07-19
Abstract: 821,904. Photographic gas developing apparatus. PARAGON-REVOLUTE CORPORATION. July 19, 1957, No. 22935/57. Class 98(2) [Also in Group XXVIII) In the liquid supply system of a gas developing apparatus, a pump is mounted in an ammonia storage tank arranged below the level of an evaporating tray in the development chamber, and a closed chamber is connected between the pump and the evaporating tray at an intermediate level so as to limit the formation of vapours in the system. As shown, pump 20 is submerged in ammonia solution in tank 22 and chambers 41 and 44 are closed to the atmosphere and separated by non- return valve 45. A further non-return valve 47 controls the rate of delivery to evaporating tray 12. Tank 22 is vented by pipe 49 at developing chamber C. Pump 20 is driven by reciprocation of rod 36 by a crank pin driven from the feed for moving sheets of photographic material over an open face of the developing chamber. An adjustable cam co-operates with a lever to vary the stroke of the pump and a return spring is provided. In another form a long cylindrical pump (see Group XXVIII) is inserted in the neck of the bottle or carboy in which the ammonia solution is shipped. The pump is operated by a solenoid energized by a switch controlled by the feed for the photographic sheets (Fig. 5, not shown). Reference has been directed by the Comptroller to Specification 610,252.