baber/WOPTO huggingface dataset:
Patent GB-474175-A (GB)
Title: A new or improved inclinometer
IPC: G01C9/20
Filed: 1936-08-21
Abstract: 474,175. Inclinometers. WILLIAMS, O. H. Aug. 21, 1936, No. 23028. [Class 97 (ii)] An inclinometer, particularly for use on aircraft, comprises a double walled cup 1 at least one, and preferably both, floor walls 2, 3 of which is, or are, transparent to enable a liquid contained between the double walls to be observed. As shown in Fig. 1, the axis of the cup is vertical and the cup is inverted and contains liquid up to the top of the double double side walls 7. A representation of an aircraft 5 is carried by a disc 4 beneath the floor wall 2 and a lamp 13 is provided. The cup is pivoted at 9 to a bracket 11 and may be initially levelled by a screw and nut device 12. In Fig. 4, the cup is shown mounted with its axis horizontal and containing liquid up to the level of the centre of the floor. The liquid surface 15 indicates pitching by its movement relatively to the graduations 14 and rolling by its angular movements relatively to the representation 5. Baffles may be provided between the double walls to diminish surging and the space between the double side walls may communicate with the space between floor walls through a series of apertures.
Patent GB-206615-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02K27/20
Filed: 1922-08-24
Abstract: 206,615. British Thomson-Houston Co., Ltd., Farmer, H. F., and Dreghorn, H. Aug. 24, 1922. Systems for alternating-current motors only.- In controlling alternating-current commutator motors for running printing presses and like machinery at ' creeping ' speed, the motor is started with resistance cut cut of the secondary circuit in order to give sufficient torque for starting, and afterwards resistance is automatically re-inserted by a device responsive to falling current in the secondary circuit. The system employs push-button control, providing both for ' creeping ' operation as described above and also for unrestricted starting with the falling current device out of action. To provide for different loads, as in printing papers with different numbers of pages, additional resistance sections and controlling devices may be employed. In the system shown, a three-phase commutator motor has a primary winding P connected to a line switch 1 and a secondary winding S having resistance R connected to a short-circuiting switch 2. When an inching button M is depressed, electromagnets are energized to close both primary and secondary switches, the motor thus starting with maximum torque. A relay 14 subject to a primary circuit coil Q and a secondary circuit coil T is arranged to re-open the switch 2 when the initial secondary current has died down, the motor then proceeding at slow speed. as long as the button M is kept depressed. For running at normal speed, the button M is left in the position shown, and a button W is depressed, the effect being to close the switches 1, 2 and to put the relay 14 out of action.
Patent GB-1272540-A (GB)
Title: Joints for deformable tubes
IPC: F16L33/00
Filed: 1970-05-13
Abstract: 1,272,540. Hose end fittings. CIE DES RACCORDS ET ROBINETS S.A. 13 May, 1970 [10 April, 1970], No. 23126/70. Heading F2G. A flexible tube 2 is pushed over a plug extension 1b of a rigid tubular body 1 and a nut 3 is screwed on to a threaded portion of the body to compress the tube against the plug and force the end of the tube to expand into an annular cavity 1c, 2a formed by the nut and the body 1. The surface 1d may be rough to prevent rotation of the tube on assembly.
Patent GB-589874-A (GB)
Title: Hydraulic lift truck
IPC: B62B3/065
Filed: 1944-11-21
Abstract: 589,874. Hydraulic brakes for elevating trucks. PAGE, H. E. Nov. 21, 1944, No. 23141. [Class 103 (i)] [Also in Groups XXIX and XXXII] An elevating platform truck comprises a main frame 5, Figs. 1, 2, and elevating frame 40 connected to the main frame by links 45a, 45b and adapted to be elevated by the action of a combined hydraulic ram and pump 50 the fluid pressure in the pump 50 (see Group XXXII) being available to operate brake shoes 161 when a foot pedal 135a is depressed, the pressure fluid passing through a slide valve 167 and pipe 165 to the actuating cylinder 162 of the brake shoes. The brake shoes 161, Fig. 1, are fitted to a rear wheel, and as the fluid pressure supplied to the actuating cylinder 162 of the brake shoes is taken from the ram 50, the braking pressure is proportional to the load carried. The actuating cylinder 162 is placed to pressure or exhaust by a piston valve 170, Fig. 6, working in a cylinder 167 connected by a pipe 180 to the fluid pressure side of the ram and pipes 173 and 165 to the sump 90 and actuating cylinder 162 respectively. The piston valve is connected by the bell crank 175 and Bowden cable 177 to the steering column 80.
Patent GB-1526686-A (GB)
Title: Extruder and twin roller calendering plant
IPC: B29C48/08
Filed: 1977-06-01
Abstract: 1526686 Extrusion calendering apparatus HERMANN BERSTORFF MASCHINENBAU GmbH 1 June 1977 [9 June 1976] 23167/77 Heading B5A Plastics or rubber material is formed into a film or sheet, by delivering the material from an extruder nozzle 5 to the nip of calender rolls 8, 9, which are pivotable with a frame 11 away from the extruder nozzle to enable cleaning of the nozzle and removal of the extruder screw. The pivoting is effected about a pivot 15 which is mounted to an arm 12 attached to the nozzle 5, and the frame and rolls are counterbalanced when pivoted away from the nozzle 5, by a weight 13 and a drive motor 14 of the rolls which are carried by the frame 11, on the side of the pivot 15 opposite to that of the rolls 8, 9.
Patent GB-941702-A (GB)
Title: Improvements in and relating to electrophotographic materials
IPC: G03G5/087
Filed: 1961-06-27
Abstract: 941,702. Electrophotographic materials. KODAK Ltd. June 24, 1961 [June 27, 1960], No. 23241/61. Heading H1K. A material for use in electrophotographic plates consists of a mixture of photo-conductive zinc oxide and at least one metal compound selected from titanium dioxide, magnesium oxide, zirconium oxide, aluminium silicate and strontium sulphate, in an insulating binder. The ratio of zinc oxide to the metal compound or compounds is in the range 1 to 9 to 32 to 1 parts by weight. Inclusion of these compounds increases the saturation potential of the plates above the threshold exposure value so that they may be handled for short periods in room lighting conditions between charging and exposure without adversely affecting the contrast of the resulting print. The ratio by weight of binder to zinc oxide and metal compounds preferably lies between 1 9 and 1 :1. Suitable binders are vinyl, silicone, phenolformaldehyde, cellulose ether and cellulose ester resins, shellac, beeswax, and carnauba and paraffin waxes. The materials may be made by adding a powdered mixture of zinc oxide and the metal compounds to a solution of the binder in an organic solvent, or by blending the mixture with the binder heated to a molten or plastic state, and then coated on a base e.g. of paper by dipping, painting or spraying. A typical plate is made by mixing a butadiene-styrene copolymer, a substituted polysiloxane, zinc oxide, anatase titanium dioxide and xylene in specified proportions in a rotating blender for 10 minutes and coating the resulting dispersion on paper. Details of a number of such plates containing different proportions of zinc oxide and titanium dioxide and of comparison plates containing zinc oxide or titanium dioxide only are given and the relative speeds and saturation potentials are discussed. Other examples illustrate the use of magnesium oxide instead of titanium dioxide and the effect of adding the dye sensitizer Rose Bengal to a zinc oxide-titanium dioxide based material. U.S.A. Specifications 2,727,807, 2,727,808 and 2,862,815 are referred to
Patent GB-424687-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/34
Filed: 1933-08-21
Abstract: 424,687. Windscreen-cleaners. VAUXHALL MOTORS, Ltd., Kimpton Road, Luton, KENNINGTON, W. O., 111, Grosvenor Road, Buckingham Palace Road, London, DREW, H., c/o Vauxhall Motors, Ltd., Kimpton Road, Luton, CONSTANTINE, W. W., and ASCOUGH, W. S., 111, Grosvenor Road, Buckingham Palace Road, London. Aug. 21, 1933, No. 23301. [Class 138 (i)] [See also Group XXIV] A wiper blade in use on a curved windscreen or like curved glass surface is oscillated or reciprocated by means of an oscillatable arm and has means to keep it in contact with the screen and means to maintain it parallel to the arms of curvature of the screen during its wiping movement. In the construction shown in Figs. 1 and 2, two parallel arms b on pivots c are pivotally connected to a rod d carrying a wiper blade a which is pressed towards the screen by a spring e. One of the arms b is coupled to the oscillater by mechanism f. The arms may be of thin transparent material. More than one blade a may be carried by the connecting rod d. In a modification shown in Figs. 3 and 4, the arms b are connected directly to the wiper blades a. Each of the rock-shafts h is obliquely disposed to the axis of curvature of the screen whereby with the assistance of one or two coil springs g, each wiper blade is constrained to move in contact with the screen. The connecting rod d may be provided with a wiper blade, and a further rod with wiper may be connected to the lower part of the blades a. In the construction shown in Fig. 6, the blade a is connected to the driving spindle h through two pairs of bevel wheels in a casing j secured to the spindle, so that as the casing oscillates the blade is maintained vertical. The bevel wheels may be replaced by spur gears connected by a slidable rack. In the construction shown in Fig. 8, a wire o curved in accordance with the curvature of the screen is horizontally disposed and is adapted to carry one or more slidablymounted wiper blades a which may be reciprocated by an oscillatable arm b connected to the sliding element by a pin-and-slot connection or by a wiper mechanism disposed at one side of the screen with its spindle vertical, the spindle being connected through an oscillatable crank and rod to the sliding element. In the construction shown in Figs. 9 and 10, the wiper blade a is pivotally connected to a hollow arm b mounted by means of a socket m on a fixed ball-shaped element q. The arm is embraced by a fork h<1> mounted on the driving spindle h. The element q has a cam groove ql adapted to be engaged by a cam roller r on the socket m whereby the wiper blade is maintained in contact with the curved screen. To maintain the blade in a vertical position as it oscillates, a push rod s is provided which is slidable within the arm b and is spring-pressed to engage a cam t at its upper end, the lower end engaging an offset portion of the blade a.
Patent GB-207602-A (GB)
Title: An improved ball caster
IPC: B60B33/08
Filed: 1922-08-29
Abstract: 207,602. Greener, H. F. Aug. 29, 1922. Castors.-A ball castor comprises a round perforated piece of metal a and a bowed strip c riveted to a, for retaining the ball b. The castor is attached by screws to furniture, trucks, vehicles &c., the guard c lying in a slot and the ball b being received in a central hole in the slot.
Patent GB-1465611-A (GB)
Title: Steam power generator apparatus of the regenerative cycle type
IPC: F01K7/40
Filed: 1974-05-24
Abstract: 1465611 Steam turbine plant HITACHI Ltd 24 May 1974 [15 June 1973] 23400/74 Heading FIT [Also in Division F4] A steam turbine plant having series-connected higher and lower pressure feedwater heaters 45, 44, respectively, heated by steam bled from the turbines 21, 22 is provided with control means enabling the higher pressure heater 45 to be supplied with bled steam at a higher temperature and pressure during low load operation of the turbines than is supplied during high load operation. In one arrangement, during high load operation feedheater 45 is supplied via line 48 and check-valve 53 with steam bled from the exhaust line 14 of highpressure turbine 21. For lower load operation a changeover valve 54 is opened to supply steam from a higher pressure point of turbine 21 to heater 45 via line 49, check-valve 53 automatically closing due to the pressure differential thereacross. A similar changeover from low to high-pressure bled steam for feedheater 44 may be effected by virtue of valves 56, 57 when the plant changes from high to low load operation. In a modification, the bled steam pressure to heater 45 may be reduced at high load operation by a pressure reducing valve. The bleed control valves 54, 56, may be operated manually or automatically in response to the load on electric generator 23 or other specified plant conditions.
Patent GB-693544-A (GB)
Title: Heat quantity meters
IPC: G01K17/18
Filed: 1951-10-09
Abstract: 693,544. Electric indicating systems. CORNET, G.M.J. Oct. 9, 1951, No. 23520/51. Class 40 (i) [Also in Groups XVIII and XX]. A heat-quantity meter particularly for warm water distribution systems or central heating systems comprises a volumetric water meter, e.g., of the one-way rotating blade type, an electricity ampere-hour meter, e.g., an electrolytic meter, a thermo-electric couple feeding the electricity meter with a current which measures the difference between a temperature of reference such as the temperature of the cold water supply or of the return conduit of a circulation system and the temperature of the water flowing through the water meter, and means whereby the water meter after each passage of a predetermined volume of water closes the circuit connecting the thermocouple and the electricity meter for a constant time so that the electricity meter registers a current quantity which is a function both of the flow and temperature of the water. A mercury switch is operated by the rotating spindle of a rotary piston or turbine type water meter at the end of each rotation, representing the passage of a predetermined volume of water, to complete the circuit connecting the thermo-couple to the electricity meter, and the switch is returned to its unoperated position under the control of a timing device, e.g., the flow of the mercury through a constricted orifice or tube, a clockwork mechanism or a pendulum device. As shown, the spindle 2 of the water meter winds up a clockwork spring contained within the drum 1, which is mounted idle on the spindle 2 but is held against rotation by the finger 5 abutting against the arm 8 of the mercury switch 9 to hold this latter against action of spring 10, in its unoperated position until lifted by a cam 7 on the spindle 2, allowing the mercury switch to tilt under action of spring 10 and complete the circuit to the meter. The drum 1 is then free to rotate in the same direction as but faster than spindle 2 under the control of escapement mechanism 11, until the' finger 5, having been lowered by spring action, again contacts arm 8 and returns the switch 9 to its unoperated position, the arm 8 holding the finger 5 and drum from further rotation. In an alternative arrangement the spindle 2 is provided with an arm which is adapted on passing to set in motion a pendulum carrying a mercury switch so that the electrodes come intermittently into contact with the mercury and intermittently complete the circuit to the electricity meter during a fixed period of time determined by the fixed amplitude of swings given to the pendulum.
Patent GB-1343313-A (GB)
Title: Devices for moving heavy equipment
IPC: B66F15/00
Filed: 1971-04-19
Abstract: 1343313 Trollies W S LEE 19 April 1971 [6 Feb 1970] 23563/71 Heading B7B A hand trolley, especially for moving heavy equipment such as a xerographic copying machine, comprises a base 1 and detachable wheeled members 2a and 2b which engage laterally extending channels 18 and 18<SP>1</SP>. The members 2a and 2b are locked in place by spring loaded bolts 102 engaging 24, a chain 101 being provided between the bolts. The base is also provided with rollers 17 for facilitating sliding the trolley under a machine while stops 14 prevent sliding two far under a machine. A jack 3, Fig. 1A, has parallel tubular members 30, cross-bars 31, a handle bar 32 and legs 30<SP>1</SP> extending substantially at right angles from the members 30. The legs 30<SP>1</SP> engage sockets 104 in the trolly base 1 for raising the machine, Fig. 6, at one end The trolley may be carried on the jack 3 provided with wheels 35 for this purpose. The trolley may be lifted by a fork-lift by engaging V-shaped members 105. (For Figures see next page.)
Patent GB-932914-A (GB)
Title: Improvements in and relating to crystal valves
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01L23/04
Filed: 1960-07-06
Abstract: 932,914. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 5, 1961 [July 6, 1960], No. 23646/60. Class 37. A crystal 4 and its associated cat's whisker 5 are mounted as a hermetically sealed vitreouswalled unit 1 within a tubular metallic casing 2 serving as the terminator of a coaxial line (not shown) whose central conductor makes contact with the conductor 3 on which the crystal is supported, the impedance of the device being adjusted by movement of the sealed crystal unit within the casing. Efficient rectifying contact between the crystal, which may be of Ge or Si, and its cat's whisker is ensured by adjustment of plunger 7 within the main block of unit 1 before solder 13 or similar material is applied to seal the unit, which is then installed in the metal casing 2 conveniently formed of copper or of copper alloy. Specification 657,793 is referred to.
Patent GB-783968-A (GB)
Title: Improvements in or relating to thermostatically-controlled valves
Inventor: LAMBURN ALAN SALISBURY
IPC: G05D23/12
Filed: 1954-08-13
Abstract: 783,968. Valves. SMITH & SONS (ENGLAND), Ltd., S. Aug. 15, 1955 [Aug. 13. 1954], No. 23653/54. Class 135. A thermostatically controlled valve 6, particularly for I.C. engine cooling systems, seating at 3 and actuated by a temperature responsive means, e.g. a bellows 4, has a circular hole 7 formed in the valve controlled by a closure member with a stem 8 passing through the hole carrying an obturator 9 having a spherical seating portion on one side of the valve 6 and a retaining portion 10 on the other side. Air in the cooling liquid can escape through the hole 7 but the obturator 9 closes the hole when liquid tends to flow through it.
Patent GB-1104448-A (GB)
Title: Improvements in or relating to luminescent screens and tubes
IPC: C09K11/59
Filed: 1965-06-03
Abstract: A cathodoluminescent screen, particularly for a storage cathode-ray tube in which the luminescent material also stores the charge pattern, consists of zinc silicate activated by manganese, the ration ZnO/SiO2 being in the range 1.50 to 1.82, e.g. 1.60.  Higher ratios, up to 2.06 are mentioned as not suitable. Insulating materials such as MgO, Al2O3, CaF2 or talc may be added to reduce the already low conductivity.
Patent GB-1405729-A (GB)
Title: Method of making a gas discharge display panel
IPC: C03C17/36
Filed: 1973-05-18
Abstract: 1405729 Coating glass with glass INTERNATIONAL BUSINESS MACHINES CORP 18 May 1973 [8 June 1972] 23720/73 Heading C1M In the manufacture of gas discharge display panels such as disclosed in Specification 1,399,548 with conductors of a layer of copper over a layer of chromium on a soda-lime-silica glass substrate and which may have an overlayer of chromium and in which the conductors are covered with glass frit which is fired to provide a dielectric coating, the frit does not contain significant amounts of aluminium oxide or zinc oxide and is fired in a wet atmosphere free of reducing agents. The atmosphere may be air, nitrogen, argon or oxygen and is pumped through water to the firing oven.
Patent GB-1189245-A (GB)
Title: Gas Turbines
IPC: F01D11/04
Filed: 1968-05-17
Abstract: 1,189,245. Seals. L'AIR LIQUIDE, SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE. 17 May, 1968 [19 May, 1967], No. 23722/68. Heading F2B. [Also in Divisions Fl and F4] In a closed circuit cryogenic gas expansion turbine having at least one seal disposed between the rotor chamber 5 and a region of lower pressure, each seal is formed by at least two portions 12A, 12B or 13A, 13B separated by a leakage collecting chamber 14 or 15 connected to a point on the closed circuit where the exhaust gas is at a substantially higher temperature than in the turbine exhaust chamber 9. The leakage gas collected in chambers 14, 15 passes via lines 16, 17, 18 to a point 19 in the closed circuit where the working gas is at substantially the same temperature as the leakage gas. If the leakage gas in chamber 14 is of different temperature to that in chamber 15 then separate connections to different parts of the closed circuit may be provided instead of a single line 18. In a modification, each seal may have more than two portions separated by leakage collecting chambers connected to different points of the closed circuit. The working gas may be hydrogen, helium, air, nitrogen, neon, or mixtures thereof.
Patent GB-1468436-A (GB)
Title: Method of packaging of goods
IPC: B65B53/06
Filed: 1974-05-29
Abstract: 1468436 Vacuum packaging SUDPACK VERPACKUNGS-GmbH & CO 29 May 1974 [8 June 1973] 23753/74 Heading B8C A vacuum package, comprising goods 21 contained in a sealed and evacuated plastics film tube or bag 12, is subjected to a heat treatment to heat seal contacting layers of the film to one another over their entire area of contact at the package margins 15. The heat treatment may be effected by passing the package through a heat shrink tunnel, a hot-water bath or an atmosphere of steam. In a shrink tunnel jets of hot air are directed on to one or both faces of the margins and in the latter instance the jets are controlled to maintain the margins in suspension. The plastics film may be heat shrinkable.
Patent GB-427380-A (GB)
Title: Thrashing apparatus
IPC: A01F11/06
Filed: 1934-08-17
Abstract: 427,380. Thrashing-machines. CLAAS, A., and BRENNER, W. G., Harsewinkel, Westphalia, Germany. Aug. 17, 1934, No. 23767. Convention date, Sept. 16, 1933. [Classes 6 (iii) and 58.] Cereal stalks drop during reaping or, in the case of a stationary thrasher, are spread out, on a horizontal endless conveyer band 1 by which they are moved transversely to the lower bend of an endless-conveyer chain arranged in a curve and provided with laterally arranged gripper-arms by which the stalks are seized and carried into a vertical position with the ears downwards. The upper end of this curved gripper chain may be adjusted to suit the height of the crop. The vertical stalks are removed from the grippers by a stripping device and fed to a conveyer comprised by an endless chain 28 provided with gripping arms 28a mounted in a bar 29 of V-cross section adjustably secured at its far end to a bracket 34 on the frame of the thrasher. A bar 35 prevents the stalks falling out of the gripper arms. Strippers 36 push the stalks clear of the arms into a vertical thrashing drum 6 by which the ears are thrashed, the stalks of the thrashed ears then being gripped by another conveyer 7 and deposited at the rear of the drum. Grain falling from the ears is caught in a trough 37 arranged under the conveyer 28 and preferably provided with a conveyer moving to the drum. In a stationary thrashing- machine the curved conveyer chain may be arranged to deliver the inverted stalks directly to the beater drum.
Patent GB-242406-A (GB)
Title: Improvements in the manufacture of caps
IPC: A42B1/06
Filed: 1924-10-08
Abstract: 242,406. Rowley, J. Oct. 8, 1924. Stiffeners.-Relates to peaked caps of the military type, and consists in supporting the front portion of the usual wire stiffener c in the crown by a T-shaped member comprising blade springs d, e riveted or otherwise permanently fixed to each other. The ends of the horizontal member e are secured to the band of the cap by bifurcated rivets f or other means.