baber/WOPTO huggingface dataset:
Patent GB-860341-A (GB)
Title: Improvements relating to colour television
Inventor: GARGINI ERIC JOHN
IPC: H04N11/14
Filed: 1956-04-11
Abstract: 860,341. Limiter circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 11, 1957 [April 11, 1956], No. 10974/57. Class 40 (6). [Also in Group XL (b)] A four-diode network 12-15 is employed to limit both the positive and negative half-cycles of a colour television sub-carrier signal (see Group XL (b)) at a level determined by a brightness signal EE which is applied via pentodes 16, 17 to vary the potential difference between points 20 and 24 in the network. The arrangement is such that the potential difference is zero for a maximum brightness signal and increases as the brightness signal decreases. The limiter characteristic is as shown in curve 28, the level portion 29 being brought about by saturation in the diodes. The subcarrier signal is applied to the limiter via a first cathode-follower 10 and the output is derived via a second cathodefollower 30. The brightness signal at the grids of pentodes 16 and 17 is restored during blacklevel intervals by clamps 26a, 26b. The subcarrier and brightness signals may exist initially as separate components in a television transmitter or receiver, or may be produced from a common set of colour-specifying signals by suitable signal processing circuits, Fig. 1 (not shown).
Patent GB-218771-A (GB)
Title: Improvements in weight-motors
IPC: F03G3/00
Filed: 1923-04-23
Abstract: 218,771. Victorsohn, M. April 23, 1923. Driving; speed-regulating and indicating. - A weight-motor especially adapted for rotating the turntables of phonographs comprises a weight 11, Fig. 1, carried on the end of a lever 9 and arranged, on falling, to turn the shaft 3 by means of a tooth 13 engaging a ratchet portion 6 on the gear wheel 5, which latter actuates a multiplying train of gears and thereby rotates the turntable 28. The motor is reenergized by a lever 33 which is pivotally mounted on the shaft 3 and the end of which projects through a slot 34 in the cabinet 1. The lever 33 carries a pawl 35 which engages a segmental rack 36 mounted to turn on the shaft 3. The rack 36 has a plain portion 37 provided with an arm 38 which is connected to the lever 9 by a link 39, thereby coupling the levers 9, 33. The arm 38 and link 39 are arranged so as to be extensible in order to suit different sized casings 1, and the radial position of the weight 11 on the arm 9 may also be varied. A governor 82, Fig. 7, mounted on a spindle 79 and provided with a brake-disc 83 is driven from the turntable shaft 27 and has a regulator comprising an arm 84, Fig. 8, pivoted at 85 and provided with a pad 87 to engage the disc 83. The end of the arm 84 remote from the pad 87 extends into the path of a broad vane 88 mounted on a shaft 89 which can be set by means of a knob 99 and an indicator 101 to alter the turntable speed bv varying the position at which the arm 84 is held fast with the pad 87 against the brakedisc 83. In a modification, a weighted arm 119, Figs. 16 and 17, in falling rotates ratchet wheels 111, 112 and through gearing the turntable 135. The turntable speed is controlled by an adjustable band 139 on a brake-disc 138. The weighted arm 119 may be reset in position by a treadle 147 and linkwork 149 - - 153.
Patent GB-830334-A (GB)
Title: Combination wash-up, colour-separating and ink-flow control means for use in connection with printing presses
IPC: B41F31/04
Filed: 1956-04-11
Abstract: 830,334. Inking-apparatus. DAYTON RUBBER CO. April 11, 1956 [April 20, 1955], No. 10983/56. Class 100(2) Means for alternatively (1) cleaning the rollers of an inking mechanism in situ, (2) separating colours thereon in longitudinalstrip inking, and (3) controlling the ink flow, includes a number of flexible resilient scraper blades 31, of hard material, applied to a hard-surfaced roller 25 itself forming part of (or in contact with another roller forming part of) the ink train, the blades 31 being mounted.side by side, with their individual scraping edges parallel to the roller axis, on a bar 30 rotatable to adjust all the blades in unison, the blades also being individually angularly adjustable on the bar for selective contact with or disengagement from the roller. As shown the brackets 26, adjustably clamped by screws 28 to a fixed grooved shaft 27 to enable the chromed steel roller 25 to he correctly set relative to the ink train, have slots 29 to receive the bar 30; the steel blades 31 are each mounted by a shoe 37 and screw 38, Fig. 3, either the shoe 37 or the bar 30 being threaded so that screw rotation straightens more, or less, the curved mounting end of the blade to alter its inclination; cotter pin 39 or the screw head abuts against the unthreaded part 30 or 37. A ratchet 34 and pawl 35 controlled by handles 33, 36 enable all the blades 31 to be adjusted together. An ink collecting trough 22 is mounted on the brackets 26. The roller 25 may be axially reciprocated. In operation, (1) if the ink train is rotated with the ratchet 34 turned clockwise (thus flexing the more advanced blades 31) until all blades 31 touch the roller 25, ink will be drawn off via the roller 25 until the whole train is clean; (2) if only those blades 31 at the edges of each colour strip are pressed against the roller 25, intermingling of colours will be avoided; (3) by means of the screws 38 the blades 31 may be accurately set to control the thickness of the ink film on the roller 25, and hence on the whole ink train; after any release of the ratchet 34, this setting may be automatically restored by returning the ratchet until the same tooth is engaged by the pawl 35. Specification 633,444 is referred to.
Patent GB-1037581-A (GB)
Title: Hydrocracking process
Inventor: HELFREY PAUL FRANCIS
IPC: C10G47/18
Filed: 1964-03-16
Abstract: Hydrocarbon feedstocks boiling above the gasoline range, free of nitrogen and containing at least 20% by volume of aromatics are hydrocracked at 400-2500 p.s.i.g., and 400-750 DEG  F. in the presence of a catalyst containing a Group 8 noble metal and in the presence of hydrogen sulphide; in one variant there is present more than 0-01 (preferably more than 0.2) millimoles of hydrogen sulphide per mole of hydrogen to produce a relatively aromatic gasoline and in another less than 0-2 millimoles per mole to produce a relatively non-aromatic jet or diesel fuel and the concentration may be varied from time to time according to the product desired. The feed should contain less than 50 p.p.m. of nitrogen but may contain sulphur.  The LHSV may be 0-5-10 and 500-20,000 SCF/B of hydrogen are used.  The metal catalyst may be supported on silica composites or molecular sieves.
Patent GB-1430084-A (GB)
Title: Marine structures
IPC: E02D29/09
Filed: 1972-03-09
Abstract: 1430084 Marine structures REDPATH DORMAN LONG (NORTH SEA) Ltd 9 March 1973 [9 March 1972] 11086/72 Heading E1H A marine structure, comprises a foundation raft 10 formed as a caisson section and founded in a subaqueous bed 12, a tower structure 16, 18 .. 24 extending upwardly from the foundation raft 10 but terminating below the water surface, a wave-penetrable structure 28 disposed upon the tower structure and projecting through the water surface, and a superstructure 36 supported on said wave-penetrable structure. The foundation raft 10 is a hollow cylindrical concrete caisson which is floated into position with a pontoon (48) and controllably sunk by flooding its chambers 42. Cables (52) connecting the caisson 10 to the pontoon control positioning of the caisson during sinking. After founding of the caisson in the sea bed 12 by the technique described in Specification 1380586, the tower structure in the form of caisson sections 16, 18 .. 24 is built up using the method employed for the caisson 10. An inflation buffer (62) is inserted in the bores 14 of adjacent sections as they are brought together, inflation thereof ensuring accurate alignment. Thereafter the wave-penetrable structure 28 in the form of a concrete raft 30 supporting either wholly tubular steel columns 32, wholly lattice columns, or, as shown, part tubular and part lattice columns, is sunk onto the tower structure. Finally the superstructure 36 is hoisted onto the tops of the columns 32. The abutting surfaces of adjacent caisson sections are sealed by fiexible seals (66) and by injecting between the surface sealing compound (68) followed by grouting (72). This allows the shaft defined by the bores 14 in the caissons and a tube 40 supported by the structure 28, to be emptied of water whereby drilling of the subaqueous bed 12 through the shaft is possible. After construction of the structure the chambers 42 may be emptied of water and used as oil storage tanks. In a second embodiment, Fig. 9 (not shown) the tower structure is in the form of vertical steel columns (92), the wave-penetrable structure and superstructure being in the form of a legged platform positionable over the columns so that lowering of the legs causes the platform to lift clear of the water.
Patent GB-1082901-A (GB)
Title: Railway vehicle retarder
IPC: B61K7/08
Filed: 1965-03-16
Abstract: 1,082,901. Railway track brakes. CLEVELAND TECHNICAL CENTER Inc. March 16, 1965 [April 14, 1964], No. 11105/65. Headings F2E and F2F. A railway vehicle track retarder is responsive to the weight of a railway vehicle running over the running rail and provision is made for adjusting the braking force of the retarder according to the speed of the vehicle passing therethrough. The retarder 5 is associated with one track running rail 1 and consists of two brake shoe rails 10 and 11 positioned on opposite sides of the rail 1. The brake shoe rails 10, 11 are adapted to be actuated against the wheels of the vehicle to be braked by means of levers 13, 14 and actuated by hydraulic piston and cylinder units 23. One lower portion 17 of each lever 13 and 14 fulcrums on a unit 23 and the other lower portion 16 fulcrums on a hardened plate 21 fixed to the cross-tie 4. A hook bolt 18 extends through the lower portions of each lever 13 and 14 and the inner end of the bolt passes over the edge of the lower flange 19 of the running rail. As the rail vehicle passes between the brake shoe rails 10 and 11 and the units 23 are pressurized the wheel W forces the brake shoe rails apart, causing the levers 13 and 14 to pivot about their outer supported portions 17 on the units 23 and the running rail 1 lifts. The portion of the weight of the railway vehicle carried by each wheel W between the brake shoe rails 10 and 11 causes forces to be transmitted from the running rail 1 through hook bolts 18 to the supporting portion 17 of the levers 13 and 14 carried by the cylinders 22 and thence to the brake shoe rails 10, 11 to cause a braking force to be applied to the vehicle wheels by rails 10 and 11 that is proportional to the weight of the vehicle. A speed-sensing mechanism is provided adjacent the other running rail 2 in advance of the track brake on the running rail 1. The speed-sensing mechanism comprises a flexible hose 25 resiliently and movably supported by a metal strip 26 adjacent the rail 2. The end of the hose 25 facing the direction from which the car normally approaches a retarder is connected through a conduit 36 to a sump 37. The other end of the hose 25 is connected by conduit 38 to a control valve mechanism 40, the latter being connected by two conduits 41 and 42 to the sump 37 and by conduit 43 to the cylinder unit 23 of the retarder. When the flexible hose 25 is engaged by a wheel of the railway vehicle the hose is compressed laterally and a pressure is developed in the hose related to the speed of the wheel in rolling contact with the hose, the valve means 40 causing the brake shoe rail 5 to be locked in a braking position when the railway vehicle is travelling faster than a predetermined speed and for releasing the brake shoe rail when the vehicle is travelling slower than the predetermined speed.
Patent GB-1261453-A (GB)
Title: Pulverulent chlorine dioxide compositions
IPC: D06L3/08
Filed: 1969-03-03
Abstract: 1,261,453. Preservative. INTERNATIONAL DIOXCIDE Inc. 3 March, 1969 [16 April, 1968], No. 11134/69. Heading A2D. [Also in Divisions A5 and C1] A substantially dry chlorine dioxide yielding composition for the preservation of fruits and vegetables from attack by fungi comprises a basic-reacting solid on which is adsorbed an aqueous solution of stabilized chlorine dioxide or of a chlorite, the composition releasing gaseous chlorine dioxide on acidification, suitably by means of a dry acid-reacting solid. The amount of composition to be used for preservation is suitably that sufficient to supply 0.001-1% chlorine dioxide gas by volume to the free space about the foodstuff. The chlorine dioxide solution is suitably stabilized by addition of a peroxy compound, e.g. sodium carbonate peroxide or sodium percarbonate, hydrogen, peroxide with alkali metal bicarbonate, sodium peroxide or sodium perborate. The solutions of chlorine dioxide or chlorite are adjusted to a pH of above 8 before adsorption. Suitable basic-reacting solids are synthetic calcium silicates, silica, talc, diatomaceous earth, charcoal, clays or volcanic ash-those adsorbents which are naturally acidic being adjusted to have a pH of at least 8 before use, e.g. with sodium hydroxide, carbonate or bicarbonate. Suitable acid-reacting solids are silica talc and normally basic adsorbents, e.g. calcium silicates, which have been made acidic by adsorption thereon of solutions of ferric chloride, aluminium chloride or hydrochloric, sulphuric or phosphoric acids. Powdered citric acid or solid acid salts, e.g. ferric chloride, aluminium chloride, aluminium sulphate or ferric sulphate, may also be used.
Patent GB-138514-A (GB)
Title: A combined depth and angle gauge
Filed: 1919-05-05
Abstract: 138,514. Barlow, E. May 5, 1919. Protractors.-A combined depth and angle gauge comprises a protractor A having a base B longer on one side of the centre of the protector than on the other side, and a slotted blade G shaped as shown rotatable on a pin C and sliding on an indicator which itself slides on the segment and protrudes into the slot in the blade. The indicator D fits around the segment and has attached to it a plate E with a bevelled indicating edge F. The blade is graduated for its full length on both faces, and may be clamped by a screw and washer C.
Patent GB-1396660-A (GB)
Title: Production of gas-tight connections to crystalline silicon or silicon carbide components
IPC: H01L21/22
Filed: 1973-03-07
Abstract: 1396660 Fusing glass to silicon or silicon carbide SIEMENS AG 7 March 1973 [21 June 1972] 11139/73 Heading C1M [Also in Divisions F4 and H1] A component of crystalline silicon or crystalline silicon carbide is fused to a body of glass to form a gas-tight connection, the glass having a mean linear coefficient of thermal expansion (over the range 0-300‹ C.) which differs from that of the silicon (25 x 10<SP>-7</SP>/deg. C.) or the silicon carbide (60 x 10<SP>-7</SP>/deg. C.) by not more than Œ20%. The silicon or silicon carbide component 1 (Fig. 1) and the glass component 2 may both be tubular. The components may be joined at zone 3 by heat-fusion at, e.g. 900-1100‹ C. by an oxidizing flame 18 or using electricallygenerated heat. The glass may be a borosilicate or aluminoborosilicate. The silicon or silicon carbide component may be coated with a layer of glass before fusion to the glass component, the coating glass having the same composition as the component. In particular embodiments, a silicon envelope 36 is fused to glass base 37 in forming an infra-red lamp (Fig. 9); a silicon or silicon carbide tube is fused to glass components to constitute a heat-exchange element in a device for cooling chemicallyaggressive liquids (Fig. 7, not shown); and silicon or silicon carbide tubes are fused to glass in apparatus for the diffusion doping of semiconductor wafers (Fig. 8, not shown).
Patent GB-898031-A (GB)
Title: Rotary transmission
IPC: F16H61/60
Filed: 1959-04-02
Abstract: 898,031. Ratchet clutches. FORMSPRAG CO. April 2, 1959 [April 21, 1958], No. 11242/59. Class 80 (2). [Also in Group XXIX] In an hydraulic torque converter the reactor member C comprises a sprag-type one-way driving member H<SP>3</SP> of which the outer race H<SP>1</SP> is bonded to the reactor hub C<SP>1</SP>, whereby the radial thickness of the hub is reduced and the fluid capacity of the converter increased. As shown the hub C<SP>1</SP> is of cast iron cast around the outer surface of a steel race H<SP>1</SP>. In modifications one of the end bearings H<SP>4</SP> is formed integral with the hub C<SP>1</SP>, and side dovetail connections are formed between the members C<SP>1</SP>, H<SP>1</SP>.
Patent GB-971821-A (GB)
Title: Improvements in or relating to hydraulic control valves
Inventor: PEACH RICHARD GUY
IPC: F15B13/04
Filed: 1961-03-28
Abstract: 971,821. Valves. HAMWORTHY ENGINEERING Ltd. Feb. 21, 1962 [March 28, 1961], No. 11252/61. Heading F2V. An hydraulic control valve comprises a body in which a control spool is slidably arranged for connecting a service port to a high pressure or a low pressure line, and a pressure compensated by-pass flow regulator carried by the spool for controlling the flow of fluid from the highpressure line to the service port, the regulator serving to maintain a pre-set flow to the service port by by-passing to the low-pressure line the unwanted part of the flow of fluid. As shown in a duplicated arrangement, an open-centre valve spool 2 is adapted to connect two service ports 9 and 10 selectively with corresponding pressure ports 8 and 7 or with a drain gallery 5 in body 1, through ports 17, 22 in the spool. In the neutral position shown, a main pressure supply to body 1 is connected direct to the drain gallery via annular recess 6 in the spool. Movement, e.g. to the right, connects pressure port 7 of the left hand regulator with service port 10 through spool ports 17, 22, this flow taking place past an annular clearance space 19 round the pressure balanced by-pass flow regulating valve 15 which is spring-urged on to a seat 11 connecting the ports 17 with drain ports 21 in the spool, the by-pass valve 15 on the left being responsive in this position to flow rate past the clearance space 19 to maintain the flow to the service port at a predetermined value and pass the unwanted flow to the drain gallery. In this operated position ports 22 of the other regulator 15 communicate with the gallery 5 and the total flow from the service port 9 is returned to drain.
Patent GB-501485-A (GB)
Title: A process for the production of a pure white cellulose product from raw sawdust
IPC: D21C3/26
Filed: 1938-04-13
Abstract: 501,485. Obtaining cellulosic fibres. RUZICKA, C., and SALE, C. V., and SALE, G. S., (trading as SALE & CO.). April 13, 1938, Nos. 11307 and 17157. [Class 2 (ii)] Fibrous cellulosic materials such as wood, sawdust, shavings, esparto grass, jute, hemp, flax, linseed-straw, coconut fibre, bamboo, or soya bean stalks, are subjected to treatment in a solution of alkaline reaction, e.g. caustic potash or sodium carbonate solution, at a temperature below the boiling point of the solution. The strength of the solution and period of immersion are selected so as to effect a partial separation of the fibres and removal of resins, waxes, and other binding agents without injury to the fibres. The partially separated fibres are washed and then immersed in a dilute solution of sulphurous acid to complete separation of the fibres by removal of all remaining resins, waxes, and other binding agents, the solution being maintained at a temperature below its boiling point. The fibres are washed and then subjected to the action of an oxidizing agent so as to remove colouring matter. Preferably, the alkaline solution and the sulphurous acid solution are used hot, e.g. at a temperature of 90-95 C. The oxidizing agent may be sodium hypochlorite solution. Sodium carbonate of 7¢ per cent or caustic potash of 3 per cent concentration may be used for the first treatment. The separated fibres may be used for spinning.
Patent GB-303318-A (GB)
Title: Improvements in and relating to plant and tree protectors
IPC: A01G13/10
Filed: 1928-04-17
Abstract: 303,318. Smith, F. W. April 17, 1928. Tree guards.-An appliance for protecting trees &c. from insects &c. consists of an openended tube 1 split longitudinally and provided with interengaging hook members 2, 3 formed at the free edges for detachably connecting them together, and with an external peripheral bead 4 to reinforce the tube and support adhesive material. The lower part of the appliance is inserted in the ground.
Patent GB-113759-A (GB)
IPC: D21J3/00
Abstract: 113,759. Young, J. B. Sept. 25, 1917. Moulding - machines; moulding pulp.-In making conical hollow ware from pulp, particularly for milk bottles, the inner mould is formed of a series of fingers 5 pivoted at 7 and normally closed by a spiral spring 8. Tapered ends 6 of the fingers engage a sleeve 18 when the mould is raised, and the fingers are spread out to detach clinging particles. The collar 7 is mounted on a hollow rod 3 perforated to allow the water to drain away and carrying perforated supports 9 and an imperforate lowermost support 9<1>. The outer mould 11 is pivoted at 26 and is fitted with a liner 30, Fig. 4, which is removed with the moulded article. The neck of the bottle is formed bv a shoulder 17 on the end abutment 14 which closes the mould space, said abutment being carried on a sleeve 15 which is raised to eject the moulded article when the outer mould is tilted, this motion being effected by arms 28 pivoted eccentrically to the outer-mould trunnions 26. A hopper 19 is provided into which the heads 5<1> of the fingers 5 fit, said hopper being carried by arms 20 which may be raised by cam means when it is desired to remove the moulded article. In operation, the outer mould is filled up to the hopper 19, and the inner mould is raised and lowered by fluid pressure acting on a piston 4 in a cylinder 2.
Patent GB-798893-A (GB)
Title: Cobalt-base alloys
Inventor: BALDWIN JAMES FRENCH
IPC: C22C19/07
Filed: 1957-04-09
Abstract: Cobalt-base alloys, having good high temperature properties and being suitable for use as weld rods for hard facing purposes, have compositions within the following ranges in per cent by weight:-Co 44-51; Cr 26-30; W 18.75-23.25; C 1.35-2.25; Si up to 1.75; Fe up to 3.0.  V may also be present up to 2.0 per cent.
Patent GB-114887-A (GB)
IPC: A01C7/02
Abstract: 114,887. Watson, W. M. April 18, 1917. Planting-tools. -A device for sowing seeds comprises a tapered tube a provided about one third of its length from its narrow end with a transverse partition b extending about half way across the tube from its lower side and, a little farther along the tube, with a second similar partition c extending from the upper side. The space between the two partitions forms a trap from which the seeds are dislodged by shaking as the device is drawn along the drill. The wider end of the tube may be permanently closed, in which case the seeds are introduced into the device by pouring them into the narrow end, or a detachable handle may be fitted therein which may be removed to charge the device. A sight opening d is provided to enable the rate of feed to be seen. In modifications, the device is made of glass, the sight hole being dispensed with, the distance between the partitions b, c is made adjustable, a triangular or other suitably shaped plate or hoe is attached to the device to form a drill for the seeds and converging or rotary disks are attached to close the drill after the seeds have been planted.