baber/WOPTO huggingface dataset:
Patent GB-226811-A (GB)
Title: Improvements in or relating to automatic altimetric correcting apparatus for carburetters of aircraft engines
IPC: F02M7/24
Filed: 1924-12-20
Abstract: 226,811. Soc. du Carburateur Zenith. Dec. 26, 1923, [Convention date]. Spray carburettors.-An altitude control which admits air to the carburettor at a rate which increases as the atmospheric pressure falls comprises an automatic and a hand-operated control portion and is so constructed that, should the automatic control be damaged or not be required, the correction for altitude may be effected by hand and vice versa. A casing a is divided by a partition d into a chamber 11, open to the atmosphere through a gauze screen 12, and a chamber 3, adapted to be supplied with air or liquid under pressure through a duct 9, and separated by a flexible diaphragm 4 from a chamber 1 formed by a cover c and containing air under a prede. termined pressure admitted by a valve 8 con. nected to the diaphragm. The chamber 11 con. tains two cylinders 13, 28 communicating with the chamber through holes 22, 35 and the cylinder 13 is also in communication through a duct 21 with the pressure-fluid chamber 3, and contains a piston 14 loaded by a spring 17 and connected through a ball joint 15 with a balanced valve 16. 16<1> engaging seats 18, 19. The base of the cylinder 13 has an air inlet 24 which, when the valve 16<1> is open, communicates through duct 25 and valve 26 with a conduit 27 connected, as shown in Fig. 5, by a pipe 46 with a chamber 47 into which the nozzle 48 discharges. The cylinder 28 contains a valve 29 sliding over a rod 32, a spring 31 on which tends to force the valve on to its seating 30. The piston 14 is connected through a pin 49 and link 41 to the short arm of a bell-crank lever, pivoted at 38 and the long arm 42 of which moves over a graduated sector 37 to serve as an altitude indicator. A lever 36 fixed to pin 38 actuates through arm 39, link 40 and pin 50, the rod 32 in cylinder 28. When working automatically, the pressure fluid in chamber 3 forces down piston 14 to an extent depending on the surrounding atmospheric pressure. This downward movement opens valves 16, 16<1> and admits air to conduit 27, the valve 26 having been opened bv placing lever 36 in the position A, Fig. 3. To change over to hand control, the lever 36 is moved to the left, to an extent corresponding to the existing altitude. This causes rod 32 to be raised, valve 26 to be closed by spring 44, and valve 29 to be opened, thus admitting air from chamber 11 through holes 35 and seating 30 to the conduit 27, the automatic portion being now isolated by the valve 26. The Specification as open to inspection under Sect. 91 (3) (a) referred to Specifications 126,729, 129,318, and 214,241. These references do not appear in the Specification as accepted.
Patent GB-1073235-A (GB)
Title: Travel sensing devices employing hall generators
IPC: G01D5/14
Filed: 1964-08-04
Abstract: 1,073,235. Semi-conductor devices. SIEMENS-SCHUCKERTWERKE A.G. Aug. 4, 1964 [July 25, 1963], No. 30779/64. Heading H1K. [Also in Division G1] A device for determining its position with respect to a magnetic field periodic in space, e.g. a recorded strip 1, comprises a row of equally spaced Hall generators 3 having their Hall voltage outputs connected in series and each having a separate control current supply. As shown in Fig. 1, the Hall generators are integral and may be formed from a semi-conductor layer by contour etching and are mounted on a wafer 2 of ferrite or a non-magnetic ceramic. The control currents of neighbouring generators are arranged to flow in opposite directions so that the output voltage is an approximately sinusoidal function of the displacement of the device, which displacement may be measured by counting zero points. In Fig. 2 (not shown), two devices (4, 5) are arranged 90 degrees out of phase with respect to the recorded strip. The combination gives an output voltage phase sensitive to the displacement of the devices and which may be used to determine their position within a fraction of a wavelength of the magnetic recording. The semi-conductor layer may extend to the edge of the wafer 2 enabling connections to be soldered at right angles to the plane of the wafer.
Patent GB-409603-A (GB)
Title: Improvements in or relating to the spring-support of motor vehicles
IPC: B60G1/00
Filed: 1933-11-06
Abstract: 409,603. Vehicle spring suspensions. PORSCHE GES., DR. ING. h.c. F., 24, Kronenstrasse, Stuttgart, Germany. Nov. 6, 1933, No. 30836. Convention date, Nov. 26, 1932. [Class 108 (ii).] In a vehicle spring-suspension the wheels which are provided with superdimensioned tyres having a low air pressure are rigidly guided by means known per se relatively to the frame to reduce the instability of the vehicle in a horizontal direction.
Patent GB-754651-A (GB)
Title: Improvements in or relating to methods of separating plutonium
IPC: G21C19/46
Filed: 1946-10-17
Abstract: 754,651. Plutonium. MORGAN, F. Oct. 17, 1946 [Jan. 25, 1946], No. 30924/46. Class 39 (4). Plutonium is separated from a mixture thereof with uranium and fission products of uranium by dissolving the mixture in nitric acid, adding bismuth and zirconium nitrates as carrier compounds, precipitating insoluble phosphates of plutonium, zirconium, bismuth and niobium by adding an aqueous solution of a soluble phosphate, treating with oxalic acid to form soluble compounds of zirconium and niobium and an insoluble precipitate of bismuth and plutonium oxalates. The plutonium may be separated from the bismuth by treating with hydrochloric acid and precipitating the bismuth from the resulting solution as sulphide by adding hydrogen sulphide. The residual solution is evaporated to obtain plutonium chloride; or the oxalates may be converted to oxides by treatment with caustic soda, chlorides formed by treatment with hydrochloric acid, and the bismuth removed as before.
Patent GB-717479-A (GB)
Title: Improvements in and relating to methods of filtering liquids
IPC: B01D35/00
Filed: 1952-12-10
Abstract: In a system for filtering liquids with the help of a granular filtering substance deposited in the filter by means of the liquid to be filtered, the clarity of the filtrate, or the liquid to be filtered, is detected by a photo-electric device which controls the feed of filtering substance to the liquid.
Patent GB-636374-A (GB)
Title: Improvements in or relating to a drag scraper
IPC: E02F3/60
Filed: 1947-11-26
Abstract: 636,374. Earth scrapers. AMERICAN BRAKE SHOE CO. Nov. 26, 1947, No. 31307. Convention date, July 21. [Class 68 (i)] A drag scraper for excavating earth comprises a body-member 20 which is semicircular in plan and has in the side walls 27, 28, two channel-shaped recesses 31, 32 to receive arms 22. The upper and lower surface of each recess and arm diverge so that, as the arm is bolted into the recess, a wedging action occurs. The back ends of the arms are bent through a right angle and secured to the body-member, whilst the forward ends of the arms contact each other and are locked together by a shoe. The bottom edge of the body-member is tapered to receive a blade portion 23 having a complementary tapered recess. The blade is secured to the body-member by bolts disposed parallel to, or on the centre line of, the taper fit of the parts.
Patent GB-521242-A (GB)
Title: Improvements in and connected with brush containers
IPC: A45D40/26
Filed: 1938-10-29
Abstract: 521,242. Brushes. TIBBINS, A. D. Oct. 29, 1938, No. 31325. [Class 19] A brush 7 is frictionally held in a container 4 by engagement of a rod 6 with a soft washer 1 held in a non-yielding sleeve 2. The brush is partly or wholly projected for use from the container. The washer is preferably of fibre, leather or the like and the sleeve 2 is fixed in a cover 3, preferably pressed from sheet metal, secured to the sheet metal container 4. The sleeve 2 might be made by pressing up the cover 3 at its middle region: Screw means may be adopted for compressing the friction sleeve, but it is preferred to force the friction sleeve into place to grip the rod 6.
Patent GB-341119-A (GB)
Title: Process for the manufacture of fast printings on vegetable fibre
IPC: E21B19/10
Filed: 1929-10-15
Abstract: Vegetable fibre is printed according to the usual methods for vat dyestuffs, with the quinone vat dyestuffs described in Specification 265,641, [Class 2 (iii), Dyes &c.].  The dyes may be used for discharge-printing, and vary from violet to greenish-blue in colour. According to examples, cotton is printed with a paste containing the dye obtained by condensing 5-phenylamino-3-methyl-2 : 1-aminothiophenol and chloranil, glycerol, starch-tragacanth, potassium carbonate, benylsulphanilic acid and rongalite C solution, followed by drying, steaming. washing, after-chroming, rinsing and soaping.  The dyes obtained by condensing chloranil with 5-(31 chlorophenylamino) - 3 - methoxy - 2 - amino - 1 - thiophenol, 5 -(41 -methylphenylamino) - 3-methyl-2 - amino - 1 - thiophenol, and 5 (diphenylamino) - 3 - methyl-2-amino-1-thiophenol, are also specified.
Patent GB-805234-A (GB)
Title: Improvements in electrical capacitors
Inventor: COLE BERNARD ARTHUR
IPC: H01G4/28
Filed: 1955-11-02
Abstract: 805,234. Capacitors. ERIE RESISTOR Ltd. May 17, 1956 [Nov. 2, 1955], No. 31352/55. Class 37. A capacitor comprising a ceramic tube 1 having external and internal silvered coatings 2, 3 is provided with a connector for the internal coating 3 comprising a longitudinally split metal tube 4 which has its ends opened out as at 7 and 8 and is soldered at 9 and 10 to the coating 3. The capacitor is also provided with a conducting ring 11 connected to the coating 2 whereby it may be inserted in an aperture in a panel 12 to serve as a lead-through capacitor.
Patent GB-841380-A (GB)
Title: Improvements relating to refrigeration equipment
Inventor: DRURY FREDERICK LESLIE
IPC: B65D85/34
Filed: 1957-10-08
Abstract: 841,380. Refrigerators. AERO PIPE & GLASS CO. Ltd. Oct. 8, 1958 [Oct. 8, 1957], No. 31502/57. Class 29 Condensation or defrost melt water from an open-top refrigerated showcase drops through aperture 27 into a cylindrical container 21 horizontally supported in a saddle shaped bracket 22, the container when full being slid forwards until aperture 27 is outside the wall 3 of the showcase and being then rotated through 180 degrees about its horizontal axis so that it empties through aperture 27. The front wall 31 of the container is set back and has a hole 32 through which water flows to indicate the container needs emptying. A baffle 28 prevents surging- of the water. The recessed front of the container is bridged by a handle 34 and surrounded by an annular flange 33 having press-studs 35 engaging sockets 36 on the underlying part of the showcase wall 3.
Patent GB-664748-A (GB)
Title: Improvements in and relating to drawer closure assemblies
IPC: E06B3/38
Filed: 1949-12-08
Abstract: 664,748. Drawers. BRITISH THOMSONHOUSTON CO., Ltd. Dec. 8, 1949. [Dec. 18, 194R] No. 31554/49. Class 52 (i). A storage cabinet, as for example a refrigerated cabinet, having a drawer which requires a gasket or other seal about the drawer opening, has an improved closure which maintains the gasket under pressure when closed and is attached to the drawer. The cabinet of sheet metal including an outer casing 10 spaced from a metal liner 11 by insulating material has an insulating breaker strip 12 about a drawer opening 13 which provides access to a compartment 14 within which are mounted drawers 15, 17. The drawer opening 13 is sealed by a closure member 19 having a resilient gasket 20 and pivotally supported on a bracket 21 by bolts 22. The member 19 comprises a sheet metal cover 30 spaced from an inner liner 31 by part of the gasket 20 to minimise heat leakage and has a handle 32 and a push button 33 which operates a latch mechanism 34 to 'withdraw a bolt 35 so that the closure member 19 is released from a retaining catch 36. When the member 19 is latched in position the gasket 20 is maintained in contact with the strip 12 entirely around the opening 13 by the force of tension springs 37 connected between brackets 38 on the drawer 15 and lugs 39 on the member 19 together with the horizontal force exerted by the latch 36. When the catch is released member 19 rotates under the influence of spring 37 until an arm 40 engages a stop member 41 secured to the drawer 15 and the drawer may be moved forwardly to gain access to its contents. The drawer is closed merely by pushing the member 19 toward the cabinet the lower part making contact with the cabinet first and the member then rotating until it is retained in its closed position by the catch 36.
Patent GB-665621-A (GB)
Title: Improvements in brackets for supporting flanged curtain rails
IPC: A47H1/124
Filed: 1948-12-07
Abstract: 665,621. Suspending curtains. JOHNSON. F. D. Dec. 3, 1949. [Dec. 7, 1948] No. 31591/ 48. Class 52 (v). A curtain rail bracket comprises an attachment member 1 of box section with a rail engaging extension 7 and a clamping member 10 held slidably against the underside of the attachment member by a tongue and slot engagement 16, 18. The clamping member has a rail engaging jaw 11 and a leg 12 parallel to the rear wall of the box member, terminating in a tongue 13 which engages a slot 14 in the top 4 of the box member and is supported by the rear wall 3. Registering holes 19 are formed in the members for the reception of a screw when face fixing is used. Similarly slots are formed in the top and bottom walls of the attachment member and a hole 21 formed in the clamping member for use when top fixing is required.
Patent GB-281312-A (GB)
Title: Improvements in means for regulating combustion in steam generator furnaces
IPC: F23N1/02
Filed: 1927-11-24
Abstract: 281,312. Siemens & Halske Akt.-Ges. Nov. 26, 1926, [Convention date]. Regulating combustion.-In a steamgenerator plant in which regulation of the air or fuel supply, or of both, is effected in accordance with the pressure in the main steam pipe acting through Wheatstone bridge arranger ments to control electric motors operating the air supply dampers, or other regulating dervices, the electric regulating resistances for the individual boilers are all adjusted mechanically by means of the rotating piston of the one piston manometer connected to the main steam pipe and further resistances in the several Wheatstone bridges can be adjusted so as to allow the boilers to work at different loads. The Figure shows a regulating-device adapted for two boilers. The measuring instrument 1 which is a manometer with rotating piston is connected to the main steam pipe and varies mercury ring resistances 2<1>, 2<11> disposed in arms of the Wheaststone bridges 3<1>, 3<11> for the two boilers. The bridges are connected to the mains 16 through resistances 35<1>, 35<11> respectively. Variation of, say, the resistance 2<1> causes the galvanometer 11<1> to excite a relay 12<1> and operate a switch 13 to control the current to a motor 14 connected to a damper and move it in one or other direction. In the position of the switch shown, current passes from the positive main 16 through the circuit 18, the upper arm of the switch 13, wire 19, motor armature, wire 20, through the lower arm of the switch 13, wire 21, contact 22, wire 23 to the negative main 16. Simultaneously the circuit for the signal lamp 27 is closed through the upper arm of the switch 13 and the contact 22 to indi. cate the direction of rotation of the motor. A draught measuring instrument 16<1> varies the resistance 15<1> in one arm of the bridge 3<1> to restore the bridge to balance. Movement of the resistance 2<1> in the opposite direction causes the switch 13 to take up the dotted-line position in which the current in the motor armature is reversed and the lamp circuit is from the lower arm of the switch 13, lamp 28 (preferably of different colour), wire 34 and contact 29 to the negative main. The contacts 22, 29, which are limit switches for the motor, are normally both closed. The bridge galvanometer may employ an intermittent contact arrangement such as described in Specification 267,496, [Class 38 (v), Electric switches &c.]. The means for enabling the boilers to work with different loads comprises bridge resistances 8<1>, 9<1>, varied by an adjustable contact 101.
Patent GB-1322521-A (GB)
Title: Continuously operable hydrothermal apparatus and process
IPC: C09C3/00
Filed: 1970-06-30
Abstract: 1322521 Hydrothermal reaction apparatus J M HUBER CORP 30 June 1970 [22 July 1969] 31752/70 Heading B1X [Also in Division C1] A slurry of clay &c is introduced under pressure by pump 102 into a reactor chamber 110 heated by elements 114, 116, 118, 120 to a temperature of up to 1000C whilst a restraining pressure of up to 30,000 1b. per sq. in. is exerted upon the slurry by means of a piston 206 reciprocable in a condenser-heat exchanger 204 and energised by water pressurised by pump 216. The reacted slurry is pressed to condenser-heat exchanger 204 via line 128 and valve 202 whilst water is bled from the condenser-heat exchanger by valve 222. When condenser-heat exchanger 204 is full, valve 202 is closed, valve 302 to a further heat exchanger 306 is opened and cooled slurry is pushed from condenser-heat exchanger 204 through outlet 230 by piston 206.
Patent GB-822708-A (GB)
Title: Screwthread measuring cylinders
IPC: G01B3/40
Filed: 1955-11-07
Abstract: 822,708. Gauging diameter of screw-threads. TOLIMIT GAUGES Ltd., GATHERCOLE, E. F. J., and WILLS, S. A. Feb. 7, 1957 [Nov. 7, 1955], No. 31783/55. Class 106 (2). A thread measuring cylinder 1 has a ferrule 2 secured to one end thereof and formed with two opposite flat surfaces 3 parallel to one another and parallel to the axis of the cylinder 1, the thickness T of the ferrule 2 being equal to the pitch of the screw-thread whose effective diameter is being measured. In use three such cylinders 1 are used as in the three-wire method of gauging. The ferrules 2 are preferably made of aluminium and attached by punched depressions 5.
Patent GB-1380185-A (GB)
Title: Television systems
IPC: G09B9/06
Filed: 1972-07-06
Abstract: 1380185 Television FERRANTI Ltd 28 June 1973 [6 July 1972]. 31815/72 Heading H4F In a training simulator an electronically generated wave-motion pattern is gated with video and other signals to ensure correct overlay of the various components in the resulting composite picture, the shape and position of the wave-motion pattern relative to the other components of the picture being controlled to effect the desired simulation. The superimposed wave pattern may represent the sea, it being possible to effect realistic horizontal and vertical movement thereof in the displayed composite picture. In Fig. 1, the wave-motion pattern is generated by wave-generating circuits WGC1 and WGC2 operating on anti-phase sine-waves of approximately half-line frequency from phase splitter PS derived in response to a square-wave pulse train from pulse generator PG whose frequency may be varied slightly above and below the line frequency, and on a sawtooth waveform derived from generator STG in response to frame drive pulses FD from the television system sync. pulse generator SPG. A "sea-state" signal SS, i.e. a signal which controls the apparent height of the wave is applied to wave height control unit WHC, and a signal WP which controls the vertical wave position on the display is applied to phase splitter PS. The output of circuits WGC1 and WGC2 are applied with line drive pulses LD to NOR gates G1 and G2, and then as shown to NOR gates G3-G6 with inverted frame and line blanking pulses from the sync. generator SPG. The output of camera C passes via linear gate G7 which has inhibit inputs I and from G6 to a silhouette generator SG which produces an output defining the envelope of the video signal from the camera, and then via linear gate G8 (which has an inhibit input of silhouette signals SH from other cameras), to a video mixer VM and then to display D. Background information is provided by signals BG applied to linear gate G9 having inhibit inputs from gate G4 and silhouette generator SH. The waves may be caused to move to left or right with varying speed by adjustment of the frequency of the pulse generator PG, a grey tone over the whole area of the wave being derived from gate G5, a grey tone representative of the ship from gate 68, and the background signals BG appropriately inhibited by ship envelope signals from gate G9. The pulse generator PG is described with reference to Fig. 2 (not shown), and includes a fixed frequency oscillator, reversible and unidirectional 10-stage counters, a 5-stage unidirectional counter, a 6-bit shift register and two equivalence networks.
Patent GB-667307-A (GB)
Title: Hair-cutting appliance
IPC: B26B21/08
Filed: 1949-12-13
Abstract: 667,307. Combs; haircutting appliances. LECLABART, J. Dec. 13, 1949. [Dec. 21, 1948] No. 31981/49. Classes 30 and 131. A haircutting appliance comprises a razor blade in combination with a comb the teeth of which converge with the blade and are each formed, at the free end, with a shallow slot which does not reach the cutting edge of the blade, the spaces between the comb teeth being of such depth that the cutting edge is exposed therein. As shown, a single-edged razor blade 4 is mounted in a resilient U-shape holder 3 pivoted at 2 to a handle 1. A resilient U-shape member 5, provided with comb teeth 8 between which the cutting edge 7 of the blade is exposed and which are provided with shallow slots 10, is slid over the holder 3. The contours of the teeth and slots may be rounded or angular or formed with terminal cylindrical portions or recurved towards or away from the blade to protect the scalp. In a modification, which may take the form of a safety razor, comb teeth are provided on two sides of the device for use with a double-edged blade. The spaces between the teeth may be of different depths on the two sides so that the length of hair left uncut may be selected.
Patent GB-446001-A (GB)
Title: Improvements in and relating to screw-pump installations for the conveyance of water
IPC: F04C14/02
Filed: 1935-11-19
Abstract: 446,001. Screw pumps. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Maschinenfabrik Augsburg - Niirnberg Akt.-Ges. ; Nuremberg, Germany) Nov. 19, 1935, No. 32006. [Class 110 (i)] A screw-pump installation for alternately filling and emptying a sluice chamber E, comprises a number of independently driven pumps PI, PII, PIII connected to a distribution pipe L1 and a collecting pipe L2 the pipes being connected in turn to suction and delivery pipes C, D and A, B, through slide valves S. To fill the sluice chamber E, the valves of B and C are closed and to empty it the valves of A and D are closed. Smaller pumps P1, P2 enable an exact level of water to be obtained. All the pumps are provided with non-return valves R. Specification 364,469 is referred to.
Patent GB-954513-A (GB)
Title: Improvements in or relating to electric fuses
Inventor: BOWMAN GEORGE EDWARD
IPC: H01H85/10
Filed: 1961-09-06
Abstract: 954,513. Fusible cut-outs. PARMITER HOPE & SUGDEN Ltd. Dec. 6, 1962 [Sept. 6, 1961], No. 32018/61. Heading H2G. An electric fuse-link consists of a fusible metal strip 10 with two rows 12 and 14 of closely spaced holes supported on and attached to a plate of mica 16. The strip may be bonded, screwed or crimped on to the mica plate. In Fig. 2 the strip is made of silver or copper and is riveted to the mica plate by rivets 18 and 20 made of soft solder. Alternatively the rivets may be made of copper or brass, coatedwith easily fusible alloy, or supporting washers or discs of easily fusible alloy. In order that the mica plate does not hinder fusing of the strip at its fusing temperature, the portions of the mica plate immediately adjacent the rows of holes 12 and 14 are similarly provided with rows of holes.