baber/WOPTO huggingface dataset:
Patent GB-1340144-A (GB)
Title: Vehicle hydraulic system
IPC: B60T13/16
Filed: 1971-09-07
Abstract: 1340144 Power-assisted steering mechanism BENDIX CORP 7 Sept 1971 [21 Sept 1970] 41707/71 Heading B7H [Also in Division F2] An hydraulic system comprises an hydraulic boost device including a housing 12 defining a chamber 34 in which a piston 36 slides, a fluid pressure source in a communication with the housing, a valve in the housing for controlling pressure source fluid flow to the chamber for moving the piston upon actuation by operatoractuated means, a pump in fluid communication with the chamber and pressure responsive sensing means for detecting a malfunction of the pressure source for actuating the pump, the valve also being operable to increase the fluid pressure in the chamber upon operation of the operator-actuated means after actuation of the pump by the sensing means. Under normal operation, the boost device is supplied by fluid from a power steering pump 22 acting as the pressure source via inlet 14 and outlet 18. Upon brake actuation a rod 94 of the operatoractuated means is moved to the left causing a lever 82, pivoted at 84, to move a sleeve 102 leftwardly, this moving, through a spring 112, a spool valve 48 leftwardly, allowing fluid communication from an inlet 14, through spool valve chambers 72, 70, valve passages 66, 64 to the chamber 34, move the piston 36 leftwardly. Upon release, fluid is vented from the chamber 34 through passages 64, 66, chambers 70, 74 to a reservoir 20 and thence to the pump 22. Upon steering pump failure, the sensing means 30 switches on an electrical auxiliary pump 28 which causes fluid to flow through the inlet 16 to the boost device. Fluid flowing through inlet 16 moves a stop piston 56, 58 rightwardly to prevent any leftward movement of the spool valve 48 so that when the sleeve 102 is moved by operator actuation, the spring 112 yields and the chamber 34 is cut off from communication with passage 64. Fluid flows from inlet 16, via a passage 76 and a check valve 78 to the chamber 34 to operate the piston 36. Upon failure of both pumps 22, 28 operator actuation causes the rod 94 to continue to move leftwardly to engage in a bore 100 of the piston 36 to move it leftwardly.
Patent GB-1010331-A (GB)
Title: Improvements in or relating to capacitors
Inventor: LLOYD PETER
IPC: C23C14/08
Filed: 1960-12-07
Abstract: <PICT:1010331/C6-C7/1> A capacitor is made by vacuum evaporating an aluminium electrode 2 on to a quartz substrate 1, applying a dielectric layer 3 of tantalum oxide to the electrode by sputtering from a tantalum cathode in an oxygen atmosphere (reactive sputtering) and then evaporating a second aluminium electrode 4 on to the dielectric layer.  The electrodes 2, 4 engage respective silver contacts 1A, 1B previously fired on to the substrate, e.g. by cathode sputtering or firing a silver paste.  A proportion of an inert gas, argon for example, may be included in the oxygen atmosphere.
Patent GB-1116748-A (GB)
Title: An arrangement on a helicopter for observing or measuring the position of its rotor blades
IPC: B64C27/00
Filed: 1965-10-05
Abstract: 1,116,748. Tracking helicopter rotor blades. LICENTIA PATENT - VERWALTUNGS- 'G.m.b.'H. 5 Oct., 1965 [5 Oct., 1964], No. 42178/65. Heading .B7W..[Also in Division G.2] An arrangement on a helicopter for observing or measuring the position of its main rotor blades when in rotation comprises a light source 5, a reflector 8, 9, 10 on each rotor blade 1, 2, 3 and an optical system to which light from the source 5 is reflected by the reflectors, the system having a ground glass plate 6<SP>1</SP> on which a trace of the reflected light is formed. If the blade heights differ, as shown, the traces of each will be staggered. - A diaphragm rotating in synchronism with the rotor so as to expose the light source only when a blade tip is in range of detection by the lens system 6, may be used to determine which trace is associated with which blade. Alternatively, the light source may be pulsed. The control of the light source 5 may be by means of an additional light source 15, light from which is reflected by a mirror (12), 13, (14) (Fig. 2, not shown), on to a lightsensitive element 16 which fires the source 5. The reflectors 8, 10 may be offset with respect to the blade centre lines to obtain separate images on the plate 6<SP>1</SP>, which may be provided with a grid to improve the comparison of the heights and/or angular spacings of the individual blades. A Kerr cell or a perforated disc 18 may be used to obtain separate images. An arrangement without a diaphragm is obtained by using a source emitting a proportion of U.V. radiation and providing a filter passing only U.V. radiation in the path of the rays to the plate 6<SP>1</SP>. The light traces may be photographed.
Patent GB-1284888-A (GB)
Title: Improvements in or relating to devices for cleaning printing machines
IPC: B41F35/00
Filed: 1969-08-26
Abstract: 1284888 Cleaning printing apparatus SISENCA SA 26 Aug 1969 [6 Sept 1968] 42362/69 Heading B6C A cylinder or roller of a printing machine is cleaned while in place with a machine by contact with a wax-surfaced cleaning roller, to which dust, ink and particles adhere and which is provided with a blade or steel roller which forces the dust, ink and particles into the wax surface. Further wax may be applied to the cleaning roller during use. Preferably the cleaning roller has a rubber body, and is trippable into and out of contact with a plate cylinder, blanket cylinder, impression cylinder, inking roller or delivery roller of the printing machine. Cleaning may take place either during printing or between printing cycles.
Patent GB-1223288-A (GB)
Title: Enol carboxylates
Inventor: TURNER JOHN CAMERON
Filed: 1968-09-06
Abstract: 1,223,288. Oleanene compounds. BIOREX LABORATORIES Ltd. 31 July, 1969 [6 Sept., 1968], No. 42431/68. Heading C2C. Novel compounds of formula (wherein R is an aliphatic, cycloaliphatic or aromatic radical and R<SP>1</SP> is H or an aliphatic hydrocarbon radical) are prepared by reacting the corresponding 2-hydroxymethylene compounds with an appropriate carboxylic acid anhydride in the presence of a tertiary organic nitrogen base.
Patent GB-902361-A (GB)
Title: Improvements in defluorination of phosphate rock
Inventor: HOLLINGSWORTH CLINTON ALLEN
IPC: C05B13/02
Filed: 1960-12-09
Abstract: In the defluorination of phosphate rock, the rock is calcined at a temperature of at least 2200 DEG  F. in the presence of water vapour and an acid phosphate compound and a sodium compound.  The proportions of the reactants are so chosen that (1) the weight ratio of the added sodium compound (calculated as Na2O) to the added acid phosphate compound (calculated as P2O5) is kept between 0,5 and 0,8; (2) the amount of acid phosphate compound (calculated as P2O5) added to the charge is maintained between 7 and 12% by weight of the total charge on a dry basis; (3) the amount of sodium compound (calculated as Na2O) in the charge is kept between 0,3 and 0,7 mol. per mol. of P2O5 present in the phosphate rock; (4) the silica content of the charge is kept between 2% and 6% by weight of the total charge on a dry basis; and (5) the CaO, Na2O, P2O5 and SiO2 content of the combined phosphate rock and reagent mixture is kept such that the mol. ratio of these constituents according to the formula Mols CaO+Na2O-3P2O5/Mols SiO2 does not exceed 1,1.  The charge consisting of the reagent mixture and the phosphate rock may be premixed in a mill, formed into pellets (which may be dried) and heated to a temperature of at least 2200 DEG F. but not greater than 2700 DEG F. in a rotary kiln or fluidized bed; in the former case the charge mixture can be introduced in the form of a slurry.  The sodium-containing reagent is usually commercial light soda ash having an Na2O content of about 58%, although sodium bicarbonate, hydroxide, phosphate or chloride may be used. p  The acid phosphate reagent is usually crude commercial phosphoric acid obtained by reacting sulphuric acid with a phosphate-bearing material, e.g. phosphate rock, but acidic sodium salts of phosphoric acid may be employed. The invention is an improvement in that disclosed in U.S.A. Specification 2,839,377 in which the rock was calcined at at least 2,600 DEG  F., the Na2O to P2O5 content of the reaction mixture was between 1,6 and 2,8 and the amount of P2O5 is less than 6% by weight of the total charge.  The ratio Mols CaO+Na2O-3P2O5/Mols SiO2 was between 1,3 and 2,8.
Patent GB-1106217-A (GB)
Title: Signal transmission apparatus
IPC: H04L25/08
Filed: 1965-10-08
Abstract: 1,106,217. Telegraphy; transistor pulse circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. 8 Oct., 1965 [13 Nov., 1964], No. 42743/65. Headings H3T and H4P. A line transmission system includes, at both the transmitter and the receiver, a transistor blocking oscillator which provides keyed A.C. signals. At the transmitter binary data is applied to the oscillator 22 and the keyed signals are rectified at 28 and filtered at 34 before being passed to the twisted pair line. At the receiver the line signals key the oscillator 36, which is powered by the received signals, the resulting signals being rectified and amplified at 42 and adjusted in level at 44 to provide the D.C. output. Since the receiver oscillator responds to the voltage difference on the line pair, noise affecting both lines has no effect on the oscillator. Resistors across the lines prevent static charges and reduce the effects of unsymmetrical earth capacities.
Patent GB-430830-A (GB)
Abstract: 430,830. Rotary compressors, pumps, and engines. NICHOLS, T. W., 63, Capel Road, Forest Gate, London. Jan. 9, 1934, No. 826. [Classes 8 (i) and 102 (i)] [See also Group XXVI] A rotary engine, pump, compressor, or exhauster comprises a rotor c in a casing having inlet and outlet ports w, y, the rotor having one or more grooves f<1> within each of which rotates and reciprocates a roller e<1> mounted on an eccentric on a common shaft, the rollers acting as pistons. Grooves h<1> are formed in the periphery of the rotor, connected with theworking chambers by ports l and so balancing the pressure. The inlet and outlet w, y, may be replaced by ports in the end plates. When used as a compressor, the casing may be water jacketed.
Patent GB-975764-A (GB)
Title: Photoflash lamp and ignition means therefor
IPC: F21K5/08
Filed: 1961-12-01
Abstract: A priming composition for coating a tungsten filament in a photoflash lamp comprises a powder mixture of readily ignitable metal and oxidizing agent suspended in a solution of a readily combustible organic binder and a plasticizer compatible therewith. The metal may be zirconium and the oxidizing agent may be potassium perchlorate. Magnesium may be included in the mixture and the binder may be nitro-cellulose.  In an example, the coating comprises 53.8 grams of zirconium, 23.1 grams of magnesium and 23.1 grams of potassium perchlorate suspended in a solution, which consists of 2.35 grams of nitro-cellulose and 0.85 grams of di-2-ethylhexyl phthalate in amyl acetate.  Alternative plasticizers are given.
Patent GB-1302675-A (GB)
IPC: B42D1/02
Filed: 1971-09-16
Abstract: 1302675 Bookbinding W C HELLER JNR 16 Sept 1971 [22 Sept 1970] 43169/71 Heading B6A An assemblage of leaves or signatures 28 is attached to the hinge parts of a casing or cover 20 to form a bound book by means of a bonding agent 36 which has a short period of adhesiveness and is rendered adhesive by exposing the hinge portions to indirectly applied energy, i.e. a radiant electric or magnetic field. The bonding agent may be a thermoplastic or thermosetting material having dispersed therein a substance in particulate form which is heated by the indirectly applied energy comprising an alternating magnetic field. Particles of iron oxide, metal particles or ferrite particles may be used for the particulate substance. An example of a suitable thermoplastic bonding agent is a water emulsion of ethylene vinyl acetate. A dielectrically heatable substance such as polyvinyl chloride may be used with an alternating electric field. The bonding agent with the particulate material therein may be in liquid or solid form. As shown in Fig. 3, bonding agent 36 containing particulate material is applied to both sides of crash 32 adjacent to the hinge 24, to the inside of the boards 18 of the covers, and to the outsides of end papers 30. After insertion of the signatures 28 with the end papers and crash into the cover, the bonding agent is exposed to an alternating magnetic field established by coils 42. Coolant may circulate in passages 46 adjacent to the coils. Platens 48 for applying pressure to the hinge parts may serve as supports for the coils. A similar arrangement is employed when the bonding agentis dielectrically heated except that the coils 42 are replaced by electrodes energized by an alternating current source. In Fig. 4, reinforced hinge parts 24 are formed by providing an indirectly heated bonding agent 36 on both sides of the crash 32 at each hinge part, conventional paste 54 being used for the remainder of the binding.
Patent GB-1210237-A (GB)
Title: Improvements in and relating to spring assemblies
Inventor: CROSBY LAWTON HAMLIN
IPC: A47C23/145
Filed: 1967-09-22
Abstract: 1,210,237. Spring upholstery. MORLEY FURNITURE CO. 22 Sept., 1967, No. 43179/67 Heading A4M. A seating assembly includes a plurality of sinuous springs 220 extending between front and rear frames 12, 13 each spring 220 having in relaxed condition a substantially circular profile, as in Fig. 2, and being installed on the frames in a stressed, flatten condition, a rear end portion 228 of each spring 220 being bent relative to the body portion 245 of the spring 220 so that in the assembled condition the rear end 228 extends downwardly and terminates short of the frame 13 to which it is connected. The end 228 may as shown have an integral extension 257 clipped to the frame 13. Alternatively the end 228 may be anchored to the frame 13 by tension springs (422a, Fig. 6) engaging a clip (423) on the spring end 228, by a tension spring (522, Fig. 7) engaging a hooked end (530) of the spring, or by a U-shaped wire clip (623, Fig. 8) with looped ends (624) encircling the spring end. The front end 229 of each spring is optionally bent downwardly.
Patent GB-1409092-A (GB)
Title: Direct cooling of air
IPC: F04D25/04
Filed: 1972-09-20
Abstract: 1409092 Refrigerator RANKEL TURBINES Ltd 20 Sept 1973 [20 Sept 1972] 43471/72 Heading F4H [Also in Division Fl] Apparatus for cooling of air comprises a centrifugal air compressor, a centripetal air turbine, an outlet of the air compressor connected to an inlet of the air turbine, a heat exchanger adapted to extract heat from the compressed air from the air compressor before it is fed to the air turbine, and a hydraulic turbine providing a work input to the apparatus. The expansion of the air in passing through the air turbine reduces its temperature by 90‹F. As shown in Fig. 3, the compressor may comprise a first stage 36 and a second stage 38, the air being cooled in a heat exchanger 48 both when passing between the two stages and also when passing from the second stage to the expansion air turbine 37. The first stage 36 is driven by the air turbine 37, while the second stage 38 is driven by a hydraulic turbine 39 which is driven by fluid supplied from a tank 40 by a pump 41 driven by an electric motor 42. The hydraulic turbine comprises impulse wheels 69, Fig. 4, separated by a spacer 70, four equally spaced tangential nozzles 73 being provided around each wheel. The angular position of swirl guide vanes 67 at the inlet of the second compressor stage is controlled in accordance with the refrigeration load by means of a control rod 84, Fig. 13, and linkage 85, 86, a cam 88 on the control rod operating switches 89, 90, 91 in succession so as to actuate solenoids 92, 93, 94 in succession to close in succession three of the four nozzles 73 supplying each wheel 69. The bearings 62 are lubricated with hydraulic fluid bled from the supply to the nozzles 73. Drain holes 76, 74 lead the hydraulic fluid back to the tank 40. In a modification, Figs. 1 and 2 (not shown), a single-stage air compressor is used, the compressor rotor and air turbine rotor being mounted on opposite ends of a shaft and the hydraulic turbine wheels being mounted on the shaft between the two bearings.
Patent GB-1495257-A (GB)
Title: Manufacture of cement
IPC: C04B7/42
Filed: 1974-10-09
Abstract: 1495257 Cement raw material slurries IMPERIAL CHEMICAL INDUSTRIES Ltd 9 Jan 1976 [9 Oct 1974] 43676/74 Heading C1H Cement kiln feed slurries are prepared by adding to the feed water containing flocculation ions one or more deflocculating agents to minimize the concentration of flocculating ions therein and thereafter forming the slurry by mixing the deionized water with cement raw materials comprising argillaceous and/or calcareous material. The deflocculating agent may be sodium carbonate and/or sodium silicate. The kiln feed slurry may be a clay/chalk slurry. Foul feed water containing a considerable proportion of flocculating ions may be used.
Patent GB-946005-A (GB)
Title: Improvements in or relating to insulated electrical conductors
Inventor: ELLIS ROBERT STANLEY
IPC: H01B9/00
Filed: 1961-12-06
Abstract: 946,005. Electric cables. BIRLEC-EFCO (MELTING) Ltd. Oct. 25, 1962 [Dec. 6, 1961], No. 43718/61. Heading H1A. A copper conductor 1 has an enclosing moulded insulating plastics casing 3 which by virtue of shoulders 9 is self-positioning on the conductor and which includes a passage 3 for cooling fluid in contact with the conductor surface. The conductor and casing may be extruded separately and assembled or they may be extruded simultaneously so that the casing fits about the conductor. The conductor may be wound to form a coil for an induction heating installation.
Patent GB-1276747-A (GB)
Title: A telephone subset having a cradle-switch mechanism
IPC: H04M1/08
Filed: 1969-09-04
Abstract: 1276747 Sets INTERNATIONAL STANDARD ELECTRIC CORP 4 Sept 1969 [11 Sept 1968 29 May 1969] 43793/69 Heading H4J [Also in Division H1] The cradle switch mechanism of a telephone subset has a rocker 10 on which are mounted cams 9 lying between contact springs 1 to actuate them on movement of the rocker 10. The contact springs 1 are strips whose faces are perpendicular to the face of a printed circuit board 2. The contact springs 1 are mounted on the board 2 which is in turn mounted on, and parallel to, the subset base-plate 3. Terminal and mounting extensions 4 of the contact springs 1 are inserted into corresponding holes in the printed circuit board 2, the ends being soldered to conductors on the underside of the board 2. The springs 1 are also supported in slots 5 in a wall 6. They are formed with bulges 8 which are acted upon by the cams 9. The cams 9 are on a cylinder section wall 15 of the rocker 10. The rocker 10 is axially rotatable in two supports 12 and two limit stops 11, 11a, on an end wall of the rocker 10, abut against one of the supports 12. When the handset is off-hook, as shown, the cams 9 engages some of the bulges 8 to close contacts 7. When the handset is replaced, wings 13 on the rocker end walls are acted upon to rotate the rocker 10, and the cams 9 are moved to engage bulges previously disengaged and to disengage those previously engaged. Sequential switching is achieved by slightly staggering pairs of contact springs 1, as shown, or by staggering the cams 9 or bulges 8. Self-cleaning of the contacts is effected by slight friction.
Patent GB-990301-A (GB)
Title: Corrosion resistant austenitic steel alloy
IPC: C22C38/44
Filed: 1962-11-19
Abstract: A corrosion-resistant austenitic steel alloy consists of: - .Cr.17.5 -26.0%, .Ni.32.5 -35.0%, .Mo.2.0 - 3.0%, .Cu.3.0 - 4.0%, .the impurities C.up to 0.06%, .Mn.up to 2.0%, .Si.up to 1.0%, .P.up to 0.03%, .S.up to 0.015%, .N.up to 0.2%, .with or without Nb (+Ta).trace to 1.0%, .or Ti.trace to 2.0%, .and/or misch metal (Ce+La).0.1 - 0.3%, .or B.0.003- 0.01%, .with Fe.as balance
Patent GB-1477904-A (GB)
Title: Liquid-cooled heavy-current connection cables suitable for use with electric arc melting furnaces and the like
IPC: H05B7/11
Filed: 1974-10-11
Abstract: 1477904 Water cooled cable KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 11 Oct 1974 [20 Oct 1973] 44167/74 Heading H1A [Also in Division H2] A water-cooled heavy-current connection cable comprises a single inner tube 1 of neoprene stranded conductors 2 disposed around it, an outer tube 3 of rubber with textile fabric reinforcement and a cable lug 5, which may be a solid forging, at each end of the cable, each cable lug carrying a cable lug inner tube 7 to which the conductors 2 are clamped by non- magnetic bands 14. The surface of the tube 7 is provided with corrugation by turning or milling, to increase friction. Coolant pipes 11 may be brazed or soldered in apertures 16 of tube 7. Flexible guide tube 6, which is soldered to the threaded sleeve 8, has a cover 15 soldered into one end to restrict the coolant flow in tube 1 to that necessary to stabilize tube 1. The interior of the lug 5 may be filled with soft solder. The outer tube 3 is fastened to the cable lug 5 by non-magnetic fasteners 4.