baber/WOPTO huggingface dataset:
Patent GB-1152994-A (GB)
Title: Aircraft Flying Control Systems
Inventor: KENMIR CHARLES VIVIAN
IPC: B64C13/24
Filed: 1965-09-10
Abstract: 1,152,994. Aircraft controls. BOULTON PAUL AIRCRAFT Ltd. 1 Sept., 1966 [10 Sept., 1965], No. 38728/65. Heading B7G. [Also in Divisions F2 and G3] The control transmission between a pilot's control member 11 and a control surface 12 incorporates a lever 16 whereon one of the pivot points 20 can be adjusted, e.g. by rotating screw 24 to move nut 19, by electro-hydraulic means 18 in dependence on the air speed and/or altitude of the aircraft so as to vary the displacement of the control flap 12 per unit movement of the pilot's control member 11. The transmission linkage may incorporate a powered flying control unit 22. Using a pitot tube the static pressure 27 may be compared with the dynamic pressure 26 and ground pressure in the device 25 from which electrical signals 37, 38 are fed to a transistor amplifier 39 whence an electrical signal 40 causes an hydraulic motor 45 to turn the screw 24 by a worm and pinion. (For operation of the means 18 see Division G3). In the event of the failure of the fluid supply to motor 45 either a reserve electric or hydraulic motor (62), Fig. 3 (not shown), controlled directly by the pilot may turn the screw 24 or a spring means may return the pivot 20 to give the lever a 1:1 mechanical advantage. The amplifier 39 may alternatively receive signals from an air data computer.
Patent GB-1090900-A (GB)
Title: Improvements in or relating to magnetic scavenging devices
Inventor: HISLOP JOHN DEREK
IPC: F16N29/04
Filed: 1966-08-31
Abstract: 1,090,900. Magnetic separators. ROLLSROYCE Ltd. Aug. 31, 1966, No. 38813/66. Heading B2J. [Also in Division Gl] A magnetic scavenging device 10 for detecting the presence of magnetic particles in lubricating systems, e.g. in gas turbine engines, whereby, e.g. wear on bearings can be detected, comprises a bar magnetic 12 encased in a non- magnetic casing 14, cut away to expose one end 24 of the magnet to the lubricant flowing in the pipe 56. Magnetic particles in the lubricant adhere to the magnet and are detected by a device 46, arranged to be equidistant from the two ends of the magnet, and therefore, normall in zero field for measuring the field of the magnet in the equatorial plane, which is, to a first approximation, linearly related to the mass of particles adhering to the exposed end of the magnet. This device may consist of two coils with their axes perpendicular to the axis of the magnet, one coil being supplied with a.c. current and a measuring device connected to the other to measure the second harmonic content of its output. Alternatively a Hall effect semi-conductor may be used. In a modification a second similar bar magnet is mounted coaxial with the magnet 12, with adjacent ends of opposite polarity and separated by a plug of non-magnetic material on which the device 46 is mounted. The casing 14 is screwed into a housing 16 in the pipe 56, the housing being provided with apertures 34 through which the lubricant flows. A plate 40 is provided, spring biassed against the end 24 of the magnet 12, so that when it is removed from the pipe, the plate closes the resulting aperture in the pipe wall. The bar magnet 12 may be replaced by an electromagnet.
Patent GB-1478328-A (GB)
Title: Suction nozzle head for a floor-covering vacuum cleaner
IPC: A47L5/30
Filed: 1974-09-09
Abstract: 1478328 Suction-cleaner nozzles PROGRESSELEKTROGERATE MAUZ & PFEIFFER 9 Sept 1974 [8 Sept 1973] 39234/74 Heading A4F A suction nozzle for a floor cleaning machine has an opening 14 in a plate 12 the underside of which defines a working plane 7 and means for holding down floor covering consisting of bars 20 which extend completely across the nozzle opening 14 and are set back from the working plane 7 preferably by an amount at least equal to the thickness of the plate 12. A rotary brush 18 protrudes beyond the bars.
Patent GB-1294670-A (GB)
Title: Cargo handling crane
IPC: B66C23/60
Filed: 1969-12-02
Abstract: 1294670 Jib cranes ALGOSHIP INTERNATIONAL Ltd 2 Dec 1969 [27 Dec 1968 10 April 1969 26 Aug 1969] 39245/71 Divided out of 1294668 Heading B8B A jib carane mounted on board ship comprises a boom 1 mounted for slewing and topping on a frame 71 and carrying a traversing trolley 2 with a load hook 5. The frame 71 is pivoted on cross-members 70, 70<SP>1</SP> mounted on posts 9 and can have its end carrying the boom 1 locked adjacent either post 9 to increase the reach of the crane transversely of the ship.
Patent GB-922644-A (GB)
Title: Improvements in or relating to fluid pressure controllers
IPC: G05D16/06
Filed: 1961-11-02
Abstract: 922,644. Fluid-pressure servomotor control systems; valves. C. A. NORGREN CO. Nov. 2, 1961 [March 20, 1961], No. 39253/61. Class 135. Fluid flow from an inlet 16 to an outlet 21 is controlled by a closure member 26 attached to tube 28, the member 26 being urged on to a resilient slot 25 by a combined resilient and sealing element 27. The position of the member 26 is determined by a diaphragm 63 having a control disc 64 abutting and closing the upper end of the tube 28; the position of the diaphragm 63 depends upon the pressure in a chamber 60 that is controlled by a pilot valve 47 which determines the fluid flow from the inlet 16 via passages 34, 35, 54 and an adjustable porous bleed 55 to atmosphere; the underside of the diaphragm is subjected to outlet pressure. The passage 54 is open to the chamber 60. The pilot valve 47 is actuated by an adjustably spring-loaded diaphragm 74, the chamber 71 of which is connected to the outlet 21 by a passage 70. If, as a result of an outlet pressure greater than that required, the member 26 seats before the required pressure is attained, the diaphragm 63 continues to rise and lifts the disc 64 from the tube 28 whereby outlet fluid escapes to atmosphere through the latter. Similarly, a pressure surge downstream of the valve will cause the same relief action by acting directly on the diaphragm 62.
Patent GB-842637-A (GB)
Title: Glass frames, more especially for forced cultivation
IPC: A01G9/20
Filed: 1956-12-24
Abstract: 842,637. Glazing metal frames. JALLAIS A. G., J. Dec. 24, 1956 [Dec. 27, 1955], No. 39256/56. Class 20(3) A welded frame, e.g. for a forced cultivation light, is formed by four longitudinal sections comprising two angle iron sides 3, 4, two intermediate T-section irons 5, 6, and three cross bars comprising a flat bar 9 intermediate two angle iron end bars 7, 8. Replaceable mouldings 2, made e.g. of wood, and fitted beneath the upper flanges 15, 16 of the longitudinal sections, have longitudinal grooves 19 which slidingly receive three lights V located in position by pegs 20 which engage holes 21 in the end bars 7 and 8. The latter have handles 22. Each moulding 2 has a central notch 17 to receive the cross bar 9 and a notch 18 at each end to fit between the upper face of the respective cross bar and the corresponding angle or T-section bar.
Patent GB-344968-A (GB)
Title: Distributing gear for hydraulic machines
IPC: F15B13/04
Filed: 1929-12-24
Abstract: 344,968. Working valves for hydraulic presses &c. SCHOTTLER, E., 110, Goethestrasse, Essen, Germany. Dec. 24, 1929, No. 39421. [Classes 69 (ii) and 135.] A distributing valve b, Fig. 2, for controlling the connection of a hydraulic machine duct e with the inlet c and exhaust d, is held in the position shown by pressure liquid passing from an inlet c<1> through conduits o, p to act on an auxiliary piston g and one end of the distributing valve. Movement of a lever n operates members i, k to put the conduit o or p to exhaust and cause the valve b to move into one or other of its end positions. The arrangement may be modified to control a press and intensifier, the conduit o being replaced by a connection e<2>, Fig. 4, with the duct e, and the latter being connected to the hollow intensifier piston t. In the position shown, the large cylinder r of the intensifier is put to exhaust through a conduit q, and the press cylinder u exhausts through the duct e, part of the liquid passing to the intensifier cylinder s. The lever n is then placed in the position shown in Fig. 5, whereupon the valve b moves to allow low pressure liquid to pass from the inlet c into the press cylinder. The return of the lever to its Fig. 4 position causes the valve b to move into contact with the auxiliary piston g. A further movement of the lever into the position shown in Fig. 6 allows water to flow through the conduit q and operate the intensifier.
Patent GB-1268998-A (GB)
Title: Driving arrangement in an optical instrument
Inventor: KOEBER HENRY JACOB
IPC: G03B17/00
Filed: 1970-08-17
Abstract: 1,268,998. Escapements. BELL & HOWELL CO. 17 Aug., 1970 [2 Sept., 1969], No. 39526/70. Heading F2X. [Also in Divisions G2-G3] In a cine camera, zoom lens 16 is controlled by pivoting lever 60 up or down about shaft 50 to tilt a motor-driven reciprocating pawl 22 about shaft 50 whereby either arm 38 or 40 of the pawl intermittently engages toothed tracks 24 on a rotatable wheel 18 connected to zoom ring 28 to provide forward or reverse rotation thereof. Pawl 22 is slidably mounted on an eccentric hub of a gear 44 continuously driven by camera motor 57. Lever 60 has an arm 62 with which a third arm 58 of pawl 22 is aligned by spring 64, and the lever may take a central position in which neither arm 38, 40 can engage tracks 24.  In another embodiment, pawl 22 has only the two driving arms 38, 40, one of which is linked to the actuator lever 60. In another form, gear 44 may be rotated in opposite directions by using a separate reversible motor to drive pinion 54. Lever 60 and control knob 84 are here omitted, since the pawl 22 automatically takes up the required tilt as the motor reverses. In the first two embodiments, the gear 44 may be synchronized with the shutter frequency.
Patent GB-1291316-A (GB)
Title: Device for the substantially uniform charging of an edge-on conveyor trough with consignments of letters and the like supplied in irregular concentration
IPC: B65H83/00
Filed: 1970-08-17
Abstract: 1291316 Transferring and orientating postal mail LICENTIA PATENT - VERWALTUNGS GmbH 17 Aug 1970 [30 Aug 1969] 39595/70 Heading B8A A device for the substantially uniform charging of an edge-on conveyer trough 7, 8, with consignments of letters and similar flat conveyed material supplied in irregular concentration, comprises a wedge-shaped feed hopper 13, one of the two side walls of which is formed by a conveyer belt 16 which travels upwards, and at the slit-like outlet of the trough, above the edge-on conveyer trough, there is mounted a conveyer means 18 which is situated opposite the lower guide roller of the conveyer belt and circulates in the downward direction. As shown in Fig. 1, the conveyer 18 is a roller. In Fig. 4, the conveyer 18 is formed by a second conveyer belt 20, the lower guide roller 21 of which is situated opposite the lower guide roller of the conveyer belt 16. The belt 20 may form the wall of the feed hopper, which is opposite the conveyer belt 16, but as shown in Fig. 4, only the lower part of the belt 20 fulfills this function. The upper part of the wall is formed by a plate 23 which is mounted at 24 for pivotal movement between two stops 25, 26. A counterweight urges the plate 23 against the stop 25. When under load of letters in the hopper, the plate 23 is caused to operate a switch 28, the latter causes shut-down of a conveyer 11 feeding the hopper 13. In a modification (Fig. 3, not shown), the plate 23 is fixed.
Patent GB-962826-A (GB)
Title: Refractory binding materials and refractory moulds made therefrom
IPC: B22C1/18
Filed: 1961-11-07
Abstract: A binary cement contains 10-90% of each of calcium aluminate cement and calcium sulphate hemihydrate.  An aggregate, e.g. fired alumino-silicates, fused alumina, silica and silicon carbide can be included.  Gelatine or fish glue may be added as retarder. Moulds are made in distinct layers of different compositions using the binary cement; some layers may be reinforced with metal, and some may be porous, e.g. contain expanded vermiculite.
Patent GB-1502358-A (GB)
Title: Injection mould part
IPC: B29C45/73
Filed: 1976-08-17
Abstract: 1502358 Cooling injection moulds PIONEER PLASTIC CONTAINERS Ltd 17 Aug 1976 [30 Sept 1975] 39953/75 Heading B5A An injection mould part 2 is cooled by passing cooling liquid, e.g. water through a spiral passage 4 to an annular recess 7 and then back through a separate spiral passage 5. The passages 4, 5 may be provided by grooves in an insert 3 provided in a chamber in the mould part 2. An ejector 8 may be provided in a central bore of the insert 3,
Patent GB-859068-A (GB)
Title: Improvements relating to devices for dividing a thread from a warp
IPC: D03J1/16
Filed: 1958-12-12
Abstract: 859,068. Thread separating devices for warptying machines &c. ZELLWEGER Ltd. Dec. 12, 1958 [Jan. 18, 1958], No. 40194/58. Drawings to Specification. Class 142(1). If a device for separating the end thread from a warp fails to separate a thread, it makes repeated attempts at progressively decreasing speed and finally stops if a predetermined number of attempts is unsuccessful. An indicator is provided to show whether the number of attempts is odd or even.
Patent GB-1327017-A (GB)
Title: Fuel injection systems for gas turbine engines
IPC: F02C7/22
Filed: 1971-08-27
Abstract: 1327017 Gas turbine engine fuel systems ROBERT BOSCH GmbH 27 Aug 1971 [27 Aug 1970 7 Nov 1970] 40218/71 Heading F1G [Also in Division F2] A fuel system for a vehicle gas turbine engine comprises a fuel governer having an electromagnet arranged in the governer housing and connected directly to a control spool of a fuel metering valve, the pressure drop across the metering valve being maintained substantially constant by a valve in the fuel line downstream of the metering valve and responsive to the pressure drop, and the electromagnet being controlled by means responsive at least to the engine speed. The governer 1, Fig.11, comprises a shaft 2 driven by the compressor turbine of the engine and driving a gear pump 3 for the fuel and a toothed disc 49 which co-operates with correspondingly toothed yokes 50 to induce voltage pulses in coils 51 indicative of the speed of the compressor turbine. The fuel metering valve comprises a rotary spool 11 journalled in conical pivots and rotatable by means of a rotary magnet 18, Figs.4 and 11, acted on by coils 19 in opposition to a spring 77. The angular position of the spool 11 is communicated to an inductive transducer 32 via a cam 30 and a follower 31. Stop surfaces 75, 76 on the cam 30 co-operate with a stop plate 74 to limit the angular movement of the spool 11. The pressure drop across the metering valve is kept constant by a valve 36 located downstream of the metering valve and controlled by a diaphragm 37 subjected to the pressure drop. The valve 36 may comprise an axially movable spool valve or, as shown, the diaphagm 37 forms the movable element of the valve in co-operation with a valve seat 39. To protect the diaphragm 37 from excessive pressure differential, a valve 170 which opens on the occurrence of a pressure differential in excess of the normal maximum value may be provided in parallel with the valve 36. An electromagnet 66, Figs.5 and 11, holds open a shut-off valve 67 upstream of the pump 3. When the valve 67 is closed, it opens a return passage from the delivery side to the suction side of the pump 3. The valve 67 may instead be upstream of the burner nozzle. The various electrical connections are made via contact springs 59, 60 and a printed circuit board 58 to a socket 57 by means of which connection is made to an electronic governor which thus receives a signal indicative of the compressor turbine speed and also receives signals indicative of the accelerator pedal position, the temperature within the combustion chamber, and the atmospheric pressure. The electronic governor controls the metering valve and also the inlet guide vanes of the useful output turbine. It also de-energizes the electromagnet 66 to shut off the fuel supply in the event of an electronic fault, overspeeding or excessive temperature. In a modification, the metering valve and its operating electromagnet are of axially movable type and are co-axial with the valve position transducer.
Patent GB-1074080-A (GB)
Title: Improvements in stereophonic radio circuits
IPC: H03D1/22
Filed: 1965-09-22
Abstract: 1,074,080. Stereophonic receivers. GENERAL ELECTRIC CO. Sept. 22, 1965 [Oct. 23, 1964], No. 40499/65. Heading H4L. In a. circuit for deriving stereo audio signals from a composite received signal comprising " sum " audio signals, " difference "sidebands of a suppressed sub-carrier f s , and. a pilot signal f,/2, a split-load amplifier 17 has a first load circuit comprising a parallel circuit 29 resonant at f s /2 in series with a resistor 31, and a second load circuit comprising a resistance 23. The output of circuit 29 is coupled via a delay network 51, 52 and a circuit 32, resonant at f s /2, to the input of a normally cut-off amplifier 38 which, conducts during alternate half-cycles of the pilot signal to produce an output of frequency f s  in a circuit 47, resonant at f s . The inductor 44 of the circuit 47 is coupled to a coil 57 which is centre fed with the composite signal output from the resistor 31, and demodulation is effected by a conventional circuit comprising diodes 58, 59 and 71, 72 and resistors 61, 62 and 73, 74, de-emphasis being provided by the said resistors in conjunction with capacitors 67, 79. Cross-talk between the "right " and " left " audio signals is corrected by feeding " sum " signals from the resistance element 23 via an adjustable tapping 87, a capacitor 86, and resistors 88, 89 to the respective outputs. As described, the two amplifiers 17, 38 feature transistors and cut off of the amplifier 38 in the absence of pilot signal is provided by D.C. earthing of both its base 37 and its emitter 41. The capacitor 51 and the resistor 52 delay the pilot signal so that switching at the carrier frequency. in the coil 57 is in exact phase relaytionship with the composite signal applied to its centre 56. A lower knee (119), Fig. 3 (not shown), in the characteristic (118) of the amplifier 38 gives protection against false operation by noise signals. Output from the amplifier 38 is rectified by a diode 96 and is further amplified by a transistor 98 to light an indicator lamp 104 when stereo signals are received.
Patent GB-966962-A (GB)
Title: Improvements relating to garages
IPC: E04H6/10
Filed: 1959-12-02
Abstract: 966,962. Garages. N. E. M. BRYDON. Feb. 20, 1961 [Dec. 2, 1959], No. 40955/59. Heading E1A. In a multi-storey garage, the roof and upper floors are supported by columns extending from the roof to the foundations; the columns being uniformly spaced in a plurality of uniformly spaced parallel transverse and longitudinal rows, the rows extending parallel to the respective sides of the building which is parallelogram shaped in plan. The arrangement is such that large and small cars are respectively parked parallel to the major and minor axes of the parallelogram, Fig. 1 (not shown). Twin spiral ramps. 17 are provided centrally of the building.
Patent GB-1042418-A (GB)
Title: Polycarbonates containing sized glass fibre materials
IPC: C03C25/285
Filed: 1964-10-08
Abstract: A composition, suitable for the manufacture of moulded articles, comprises a mixture of (a) a thermoplastic polycarbonate and (b) glass fibres sized with a thermoplastic polycarbonate (see Specification 1,027,324).  Preferably, the sized glass fibre is uniformly distributed in a melt of the polycarbonate and the compositions then extruded in the form of strands which are then comminuted to a granulate (see Specification 988,563).  The composition may also contain glass powder, quartz products, graphite, polytetrafluoroethylene, metal threads or powders or fibres of cotton, sisal, asbestos or synthetic materials.  The example describes a composition of the polycarbonate of bisphenol A and glass fibres sized with a copolycarbonate of bisphenol A (90 mol. per cent) and 2,2-bis-(4-hydroxy-3-allyl-phenyl)-propane (10 mol. per cent).
Patent GB-939846-A (GB)
Title: Improvements in multivbrators
Inventor: KADINGER BELA
IPC: H04N5/12
Filed: 1959-12-04
Abstract: 939,846. Valve pulse circuits. MUSZERIPARI KUTATO INTEZET. Dec. 4, 1959, No. 41286/59. Class 40 (6). In a multivibrator a common synchronizing signal at terminal 5 is applied through a direct current connection to each anode, or to a tapping on each anode load resistance 1, 2, through resistors 3, 4 which are not in the direct current path between the power supply and the anodes. In a frequency dividing chain, the synchronizing signal for a succeeding stage may be obtained from a tapping 7.
Patent GB-1090820-A (GB)
Title: Improvements in and relating to plastic sacks or bags
Inventor: HUGHES HARRY
IPC: B65D33/02
Filed: 1965-09-29
Abstract: 1,090,820. Plastics bags. IMPERIAL CHEMICAL INDUSTRIES Ltd. Sept. 1, 1966, No. 41361/65. Heading B8K. A flexible reinforcement patch is provided at or near at least one corner of a plastics bag. The bag may be of flat form, and patches may be applied by welding or stitching at any or all of the corners.
Patent GB-951988-A (GB)
Title: Phosphorus polymers
IPC: C08G79/06
Filed: 1961-11-20
Abstract: A process for polymerizing a tetrakis (a -hydroxy organo) phosphonium compound having the formula: <FORM:0951988/C3/1> where R is an alkyl radical having between one and six carbon atoms, an alkenyl radical having between one and six carbon atoms, an aryl radical having between six and ten carbon atoms, a heterocyclic radical or a cycloalkyl radical having between three and six carbon atoms and x is chlorine, bromine, fluorine, iodine or an organic anion of a volatile acid, which comprises heating the phosphonium compound to a temperature between about 150 DEG  and about 200 DEG C. until polymerization is substantially complete, while passing a gas inert to the reaction mass through the reaction mass. The phosphonium compound may be as a solid or as an aqueous solution, suitably of 50 to 90% concentration. The products can be used to form flame-retardant coatings on paper and cellulosic textiles. In examples polymers are prepared by the above method from (1) to (4) tetrakis (hydroxymethyl) phosphonium chloride, (using different inert gases); (5) tetrakis (hydroxymethyl) phosphonium bromide. In Example (6) an aqueous mixture of the polymer with triethanolamine, urea and trimethylol melamine is mixed with a vinyl chloride-vinylidene chloride latex and the mixture is used to impregnate carburettor air-filter paper to impart flame resistance and tear strength.ALSO:Flame-retardant properties are imported to cellulosic textiles and paper by treatment with a polymer obtained by beating a phosphonium compound of the formula <FORM:0951988/D1-D2/1> to a temperature of between about 150 DEG  and 200 DEG C. until polymerization is substantially complete while passing a gas merit to the reaction mass through the reaction mass.  In the formula R is an alkyl or alkenyl radical having between 1 and 6 carbon atoms, an aryl radical having between 6 and 10 carbon atoms, a heterocyclic radical or a cycloalkyl radical having between 3 and 6 carbon atoms and X is chlorine, bromine, fluorine or iodine or an organic ion of a volatile acid.  In an example (6) an aqueous mixture of a polymer obtained by the above method from tetrakis- (hydroxymethyl) phosphonium chloride, triethanolamine, urea, trimethylol-melamine and a vinyl chloride-vinylidene chloride latex is used to impregnate carburetter air-filter paper to impart flame resistance and tear-strength.