baber/WOPTO huggingface dataset:
Patent GB-722100-A (GB)
Title: Improvements relating to games courts
IPC: E01C13/06
Filed: 1951-07-06
Abstract: 722,100. Games courts. SPURRIER, J. M, June 13, 1952 [July 6, 1951], No. 16041/51. Class 132 (1). A games court comprises a foundation of porous material, e.g. ashes or clinker, on which is laid a main layer of hard burned red shale which does not contain any fine material and has a spraying of binding emulsion, e.g. bituminous or tarry, applied after it has been spread so that interstices are present and preserved throughout the main layer. As shown a court comprises a layer of ashes B, and a layer of clinker C, which layers are sprayed with binding emulsion, a main layer D of hard burned red shale graded from # inch to 3/ 16  inch and a top dressing of shale graded from # inch to 1/ 16  inch.
Patent GB-1075109-A (GB)
Title: Methods of storing a constituent of air obtained from an air separation plant
IPC: F25J3/04
Filed: 1966-04-13
Abstract: 1,075,109. Cold separation of air. SULZER BROS. Ltd. April 13, 1966 [April 30, 1965], No. 16185/66. Heading F4P. In a continuously operated air rectification plant wherein during a low demand period for product gas, e.g. oxygen, the excess oxygen withdrawn from the column (100), Fig. 1 (not shown), in the gaseous phase through a duet (108) is condensed in a coil (19), Fig. 2 (not shown), surrounded by liquid air or nitrogen and is then expanded at a valve (21) into a storage tank (10), the resulting vaporized air or nitrogen is fed through ducts (6, 129) and one or more of conventional feed air heat exchangers (101, 102, 103) previously cooled by product gaseous oxygen during a full demand period. The exchangers (101, 102, 103) are arranged in parallel and one or more are taken out of the product oxygen line inversely proportional to consumer demand. The necessary cold nitrogen required for replacing the oxygen in said exchangers is obtained by comprising effluent nitrogen at 11, cooling in exchangers 13, 14, expanding in a turbine 15 and at a throttle valve 18. To meet an above average demand for gaseous oxygen, liquid oxygen in tank (10) is vaporized and fed through a duct 4 and heat exchangers 13, 14 where it is heated to ambient temperature.
Patent GB-773436-A (GB)
Title: Improvements in or relating to the preparation of polyhydric alcohols
Filed: 1955-06-06
Abstract: Polyhydric alcohols are prepared by passing aqueous halohydrins and inorganic basic hydrolysing agents through a plurality of reaction stages maintained at hydrolysing temperatures above 25 DEG  C., the mixture introduced into the first stage containing only a substantial part of the total stoichiometric requirement of basic agents for the hydrolysis, and additional amounts of basic agent being introduced at one or more subsequent reaction stages in such a manner that the pH value of the reaction mixture is maintained at between 8 and 10 throughout the reaction.  Temperatures between 75 DEG  C. and 250 DEG C. are generally suitable for carrying out the process.  In operations at temperatures in the range of about 75 DEG  C. to about 110 DEG  C. the reaction may be carried out at atmospheric pressure, but at higher temperatures it is preferred to carry out the reaction under super-atmospheric pressure, provided preferably by carbon dioxide under pressure.  The reaction is preferably carried out with a total amount of base which is at least equivalent to the halogen in the starting halohydrin.  Generally about 2 to 15 per cent excess of basic agent is used.  The basic agent is divided among the different reaction stages in the proportions required to maintain the reaction mixture therein at the required pH value.  Suitable inorganic bases are, for example, alkali metal hydroxides, carbonates, phosphates, polyphosphates or borates.  The halohydrins used as starting materials may be substituted by aromatic or cycloaliphatic groups. In the examples: (a) epichlorhydrin containing about 25 per cent by weight of dichlorhydrins is hydrolysed in a vessel divided into five compartments by injecting the epichlorhydrin mixed with sodium carbonate solution into the first compartment and adding sodium hydroxide to subsequent compartments so that the pH is maintained at the value 9.6; glycerin is separated from the reaction mixture; (b) similarly 1-chloro-2.3-epoxy butane yields 1.2.3-trihydroxybutane, p-methyl epichlorhydrin yields b -methyl glycerin, ethylene and propylene chlorohydrin yield ethylene and propylene glycol respectively, 1-chloro-2.3-dihydroxybutane and 2-chloro - 1.3 - dihydroxybutane yield a  - methyl glycerine, 1 - chloro - 2 - methyl - 2.3 - dihydroxybutane yields b -methyl glycerine, 1-bromo-3.4-dihydroxypetane yields 1.3.4-trihydroxy-pentane and 1.4-dihydroxy-5-chlorodecane yields 3.4.5-trihydroxydecane. Specification 569,717, [Group IV], is referred to.
Patent GB-126891-A (GB)
Title: Improved Construction of Carburetter for Internal Combustion Engines.
Inventor: WATLING ARTHUR
IPC: F02M17/28
Filed: 1918-10-05
Abstract: 126,891. Watling, A. Oct. 5, 1918. Carburetting. - In a carburettor for internal-- combustion engines, petrol from a pipe F having a valve G flows down a spiral blade C, covered with absorbent material D, together with hot air. Excess of petrol may be drained off by a cock P. The mixture passes to the engine up a pipe B having a valve T operated by suction and mounted on a lever H, which also carries a petrol valve J and a button M pressed upwards by a spring N, which normally acts to close the valves I, J.
Patent GB-110952-A (GB)
Title: Improvements in Driving Mechanism for Tractors.
Inventor: DENNING JOSEPH MELVIN
IPC: B60K17/16
Filed: 1916-11-14
Abstract: 110,952. Denning, J. M. Nov. 14, 1916. Wheel-driving attachments.-The driving-wheels 14 of tractors are mounted on a floating axle 16 and are driven by gear-wheels 21 mounted on sleeves 18 provided with arms 19 connected to the rims of the wheels by cross-members 20.
Patent GB-683053-A (GB)
Title: Improvements in or relating to shrouded electro-magnetic apparatus
IPC: H01F27/22
Filed: 1951-07-10
Abstract: 683,053. Transformers and inductances. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 10, 1951 [July 13, 1950; Oct. 30, 1950], No. 16329/51. Class 38 (ii). A transformer or choke 1 is placed in a casing 3, the space between the transformer or choke and the casing being occupied by a mass of creased metal foil-such as the plugs 4 and the portion 5-having good heat conducting and non-magnetic properties so as to form a coolant for the apparatus and to prevent vibrations being transmitted from the apparatus to the casing, so obviating noisy operation. The foil is introduced when in the solid condition and is arranged to have a filling factor of from 0.05 to 0.3, the preferred foil thickness being from 10 to 100 microns. In another embodiment is shown a choke only partially encased in which case the apparatus is not hum free in operation.
Patent GB-1304392-A (GB)
IPC: C07D207/08
Filed: 1970-04-07
Abstract: 1304392 N-substituted 3-phenylpyrrolidines A H ROBINS CO Inc 7 April 1970 [11 April 1969] 16413/70 Heading C2C The invention comprises compounds of formula wherein R<SP>1</SP> is H or C 1-8  alkyl, R<SP>2</SP> is C 1-8  alkyl, R<SP>3</SP> is C 1-8  alkyl or alkoxy, CF 3 , F, Cl or Br, and n is 0, 1 or 2. The compounds are prepared by reacting a compound of the above formula, but which has H in place of the CONR<SP>1</SP>R<SP>1</SP> group, with the corresponding alkyl isocyanate or dialkylcarbamyl halide. Therapeutic compositions for oral or parenteral administration comprise compounds of the above formula, which have an action on the central nervous system and show muscle relaxant and anticonvulsant activity.
Patent GB-621628-A (GB)
Title: Improvements in looms for weaving pile fabrics
IPC: D03D27/06
Filed: 1946-05-30
Abstract: 621,628. Pile fabric looms. PICKING, W. T. May 30, 1946, Nos. 16429 and 19836. [Classes 142 (ii) and 142 (iv)] In a loom in which pile warp 14 is looped over wires 11, the beat-up reed 13 is clear of the wires when the slay is in its rear position. During the part of the cycle that the reed 13 is forward of the tips 12 of the wires; the breast beam 21, which carries the wires, is rocked about a shaft 31 so as to lower and raise the tips of the wires, thereby reducing the amount that the pile warp has to be lifted to loop it over them. The looping is effected by shogging a reed 15 bodily, or by flexing its dents, or by moving it vertically (in which case it has bent dents). Details of the fabrics produced, and other details of the loom, are as described in Specification 570,377.
Patent GB-670042-A (GB)
Title: Improvements in or relating to electronic storage apparatus
Inventor: NOBLE SPENCER WATKINS
IPC: H04B14/04
Filed: 1949-06-22
Abstract: 670,042. Electric tests. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 1, 1950 [June 22, 1949], No. 16586/49. Class 37. [Also in Group XL (c)] An electronic storage circuit of the type in which a storage capacitor is charged to an extent indicative of information to be stored comprises a high-gain negative feed-back path and means whereby a large current may be withdrawn from or injected into the capacitor to alter its charge to a desired level. Fig. 1 shows a storage circuit in which a high-gain  amplifier stage V1 has a negative feed-back path from anode to control grid via the D.C. coupled cathode follower stage V2 and storage capacitor C. Under normal conditions any small current flow into or away from the grid of valve VI, due to the imperfect insulation of capacitor C, produces a voltage change at the cathode of valve V2 which causes an opposing current flow and the potential across capacitor C thus remains substantially constant. The  gating valves V3, V4 are normally non-conducting but when a positive pulse representative of information to be stored is applied to the grid of valve V3 its anode voltage falls, the grid voltage of valve V1 falls, its anode voltage rises, and thus the cathode potential of valve V2 rises to charge capacitor C to a level proportional to the amplitude of the pulse applied to the grid of valve V3. If on the other hand valve V4 is rendered conducting by a positive pulse applied to its grid circuit, the cathode of valve V1 is driven negative diode D2 is cut-off and the cathode potential of valve V2 falls. Current flows into capacitor C and the voltage of the grid of valve V1 is driven negative until diode D1 conducts and holds the grid voltage at a predetermined level. Capacitor C is thus charged with the cathode of valve V2 negative. The potential at the cathode of valve V2 is thus a measure of the amplitude of the signal which was applied to render valve V3 or V4  conducting. In a modification, Fig. 2 (not shown), two oppositely poled diodes are connected to the grid of valve VI, thus limiting the voltage swing of the cathode of valve V2 in both directions. Fig. 3 shows a further modification in which the recording of three distinct states of voltage may be made. Valves V5 and V6 are normally rendered non-conducting and the cathode voltage of valve V2 may be set into either of two states by setting pulses applied to valves V3, V4, as described in connection with Fig. 1. If valve V5 is rendered conducting by a positive pulse to be recorded applied to its grid and valve V6 is simultaneously rendered conducting the voltage of the grid of valve V2 and hence of its cathode will be set to a level dependent on the grid voltage of valve V5 irrespective of the intial condition of the circuit.
Patent GB-1522735-A (GB)
Title: Implantable pellets and methods of making and using them
IPC: A61K9/00
Filed: 1976-04-23
Abstract: 1522735 Implantable pellets SYNTEX (USA) INC 23 April 1976 [28 April 1975] 16692/76 Heading A5B A solid spherical subcutaneously implantable pellet which exhibits a substantially constant rate of release of active agent over a first time period and an abrupt termination of drug release at the end of the time period comprises (a) a bicompatible, inert, spherical' core having a diameter of about 2 mm to about 10 mm and (b) at least one bicompatible bisoluble coating having a substantially uniform thickness of about 0.05 mm to about 1.0 mm intimately adhering to and completely covering the inert core, the composition of the coating comprising a substantially homogeneous mixture of (i) about 5% to about 90% weight of a pharmaceutically suitable carrier and (ii) about 10% to about 95% weight of a biologically active agent.
Patent GB-727894-A (GB)
Title: Improvements in or relating to change-speed gears
IPC: F16H63/30
Filed: 1951-07-13
Abstract: 727,894. Change-speed gearing: controlling clutches. SOMMER, A. H. and WICKHAM & CO., Ltd., D. Sept. 9, 1952 [July 13, 1951], No. 16724/51. Class 80 (2). In a planetary change-speed gear comprising at least two trains in series between driving and driven shafts 2, 27, the planet carrier 23 of the first train is connected to the annulus 22 of the second train and a fluid pressure operated multidisc clutch 8 can lock the sun gear 1 and annulus 4 of the first train together, a fluid pressure operated multi-disk clutch 31 being engaged to lock the annulus 30 of the second train to its planet carrier 26. The clutch 8 is actuated on axial movement of a presser plate 12, abutted by a thrust-bearing 14, when compressed air is admitted through a pipe 20 to a cylindrical portion 17 in an engine clutch housing 18 containing an annular piston 16. The annulus 4 of the first train and the sun gear 25 of the second train can be held fast by fluid pressure operated brake bands 21, 32 respectively. As shown the gear gives four ratios, but as a modification an extra train can be introduced so that eight ratios are obtained.
Patent GB-767978-A (GB)
Title: Improvements in or relating to the production of direct positive photographic imagesby the silver salt diffusion process
IPC: G03C8/06
Filed: 1954-06-08
Abstract: 767,978. Photographic silver salt diffusion process. AGFA AKT -GES FUR PHOTOFABRIKATION June 8, 1954 [June 5, 1953], No. 16813/54. Class 98(2) A light-sensitive silver halide emulsion. layer, containing an aromatic developing substance the aromatic nucleus of which is substituted by an aliphatic residue containing at least three carbon atoms or by a cyclo-aliphatic or araliphatic residue, is exposed and contacted with a reception layer containing development nuclei in the presence of an alkaline solution containing a silver halide solution to produce direct positive image in the reception layer. In an example 1, 2 - dihydroxy - 3 - cyclohexyl benzene in aqueous alcoholic solution is added to a silver halide emulsion and a layer produced therefrom is exposed and contacted in the presence of a solution containing sodium hydroxide and sodium sulphite with a gelatine layer containing colloidal silver sulphate, hypo, potassium metabisulphite and hydroquinone and the layers are separated after a time for the processing, the positive image possessing excellent whites. Otherdeveloping substances of the specified kinds for use in the silver halide emulsion are quoted and the hydroquinone in the reception layer may be replaced by metal or ascorbic acid. Specification 655,273 is. referred to.
Patent GB-192983-A (GB)
Title: Hide-stretching apparatus
IPC: C14B1/02
Filed: 1922-06-19
Abstract: 192,983. Horsting, W. F. June 19, 1922. Stretching by tension.-Hide-stretching frames are supported on fixed and movable tracks arranged so that the frames can be transferred from a vertical to an horizontal position without being supported by hand. The fixed track 9 is of the form shown in plan in Fig. 1, and may be suspended from a ceiling or supported by posts 7, as shown in Fig. 2. A bar 26 forming the movable track is supported by uprights 24 on a turntable 22. The latter is revolved until the bar 26 is in line with the free end of the track 9. A stretching frame 11 on the fixed track 9 is then moved until hooks 27 on the side bars of the stretching frame engage enlargements 28 of the bar 26, which form pivots for swinging the frame into an horizontal position. Normally the turntable is fixed by means of notches 32, 33, or 34 engaged by a bolt 35, which can be withdrawn by foot lever 37. A spring clip 40 is provided on the support 42 in order to fix the frame securely. When the hide &c. has been placed under tension by a stretching device, the bar 15 is secured to the side piece 11 by means of a grooved roller 19 which is pivoted eccentrically between the wings 18 of the sleeve 16, and is actuated by the handle 21.
Patent GB-811977-A (GB)
Title: Process for improving the quality of lubricating oils
Inventor: HALTER RICHARD CARLISLE
IPC: C10G67/04
Filed: 1957-05-28
Abstract: A lubricating oil is prepared by hydrogenating a lubricating oil fraction in the presence of a catalyst and 200-2000 cu. ft. hydrogen/barrel at 1/4 to 3 v./v./hr., 575-750 DEG  F. and at a pressure of 700-800 p.s.i.g., to form a liquid phase containing hydrogen, light hydrocarbon and some low flash-point liquid, and subsequently separating the hydrogen and low flash-point liquid to leave a lubricating oil phase, which is solvent extracted to leave a raffinate phase, preferably after dewaxing.  A suitable solvent is phenol, used at 110-250 DEG  F., but liquefied sulphur dioxide may be used at 30-120 DEG  F., or furfural at 150-300 DEG  F.  The catalyst preferably comprises 5-25 per cent by weight cobalt molybdate and 75-95 per cent of silica-free alumina.  The process is particularly suitable for the treatment of distillate fractions from MidContinent or Coastal type crude oil.
Patent GB-358042-A (GB)
Title: Improvements in cigarette collectors for cigarette-making machines
IPC: A24C5/32
Filed: 1930-06-02
Abstract: 358,042. Cigarette-making machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(American Machine & Foundry Co.; 511, 5th Avenue, New York, U.S.A.) June 2, 1930, No. 16967. [Class 130.] Cigarettes from a continuous-rod machine are caused to travel endwise along one or two pathways leading to a device for collecting the cigarettes by means of a forwarding device which forms the bottom of the pathways and is moved at a constant speed regardless of the speed of the machine. In the apparatus shown in plan in Fig. 1, and in sectional elevation in Fig. 2, two pathways are formed by a rotating disc 9, fixed guide walls 14, 18, and an inner guide wall 13 formed on the disc. The wall 14 is carried by a stationary cover 16. Cigarettes are delivered from the cutting device of the machine through a tubular guide 5 to an oscillating guide tube 6 which delivers alternate cigarettes on either side of a stationary wall 8 continuous with the guide wall 14. The speed of the cigarettes is retarded by the friction of the walls 14, 18. The disc 9 is driven by a friction disc 20 adjustable axially on a splined shaft 22 driven from the main shaft 48 of the collector through helical gearing 47, 46, 36, 35. The axial adjustment of the friction disc 20, to control the speed of the disc 9, is effected by means of an adjusting screw 32 acting upon a lever 28. The housing 24 of the friction disc 20 &c. is adjustable vertically, to take up wear of the friction disc, by turning a threaded ring 30 engaging a lifter bushing 39. The disc 9 delivers the cigarettes upon an obliquely arranged and adjustably mounted belt conveyer 49, which carries them against deflectors 50, 51 provided with curved side plates 52 53 for guiding the cigarettes in parallel arrangement on to the delivery belt 54. The cigarettes are stopped by guide rails 55, 56, and an adjustable guard rail 58 is provided. The belt conveyer 49 is driven from the roller 59, the shaft of which carries a friction roller 65 in engagement with the disc 9.
Patent GB-278636-A (GB)
Title: Improvements in or relating to dental and surgical engines and hand pieces therefor
IPC: A61C1/18
Filed: 1926-05-31
Abstract: 278,636. Whiteside, H. A. May 31, 1926. Driving-arrangements; insulation. - A dental handpiece is directly connected to an electric motor or other power unit by a slip joint the inner sleeve of which fits telescopically within the handpiece and is carried by the stationary bearing of the shaft of the power supply unit and is removable from said bearing without disturbing the shaft. The inner slip joint sleeve 300 is screwed to the bearing bushing 253 of an electric motor 250, the shaft 256 of which is insulated within a, member 258 having a recess 262 in its exposed end and formed with two driving dogs 261. The sleeve 300 fits within a sleeve 317 screwed to the member 316 of the handpiece and is fitted with a spring catch 303 adapted to engage a notch on the sleeve 317. The shaft 324 of the handpiece is formed with a collar 313 engaged by shoulders 314, 315 on the members 316, 317 respectively, and is screwed at its exposed end to a member 308 formed with dogs 309 co-operating with the dogs 261 and having secured thereto, by a pin 312 a split pin fitting closely within the recess 262 in the member 258. The forward end of the shaft 324 is connected by a cross pin 335 to a member 337 formed with an inclined surface 344 engaging the usual bell-crank lever 340 which operates the tubular spring tool-clutch 348 through a sleeve 346. The tool clutch and its operating members are carried within an inner sheath 331 mounted in a sliding outer sheath S. The sheath S comprises members 326, 329 screwed together at 330, and a loose washer 332 is mounted between the adjacent ends of the member 326 and the inner sheath 331. When the outer sheath S is moved to the left, as shown in Fig. 3, so as to compress the tool clutch the forwardly-extending part 325 of the member 316 serves to conceal the inner portions of the handpiece. Specifications 276,939, [Class 81 (ii), Medical &c. appliances], and 276,940 are referred to.
Patent GB-489406-A (GB)
Title: Improvements in and relating to vibratory massage apparatus
IPC: A61H23/02
Filed: 1937-06-18
Abstract: 489,406. Vibratory massage apparatus; reciprocating motors. SODECO SOC. DES COMPTEURS DE GENEVE. June 18, 1937, No. 17016. Convention date, Jan. 29. [Class 81 (ii)] [Also in Group XXXV] A vibratory massage apparatus comprises an electromagnet 4 energized by alternating current and having an armature 9 carried on a rod 8 which carries a replaceable massage element 10 ; the rod is supported on both sides of the magnet by the central portions of laminated or single blade springs 13, 14, the ends of which are mounted on the magnet casing 17. The magnet core comprises a sleeve 5 surrounding rod 8 and integral with an end disc 6 and a cylindrical casing 7 ; the armature 9 is of disc form. As shown, the springs 13, 14, are secured by screws 16 and may be in longitudinal tension, or in compression and curved. The springs may be variably loaded to regulate the vibration amplitude by a compression or tension coil spring secured at 11, or 12, and to a knob screw-threaded in the outer casing 1 of the apparatus ; alternatively a screw cap forming one end of casing 1 may have an internal annular or spiral rib which, by rotation of the cap, is caused to bear on intermediate points of spring 14 with variable pressure or a variable point of application. The springs 13, 14 may be secured, instead of by screws 16, 17, (1) by knife-edges which permit longitudinal but not lateral movement thereof, (2) by V- grooved plates one of which for each spring is spring mounted to cause the springs 13, 14 to curve outwardly, or (3) by screws 16 at one end and clamps permitting slight longitudinal, and lateral movement at the other. The casing 1 has a hollow handle 2 enclosing the electric supply flex and also if desired a rheostat or means permitting the use of different tappings of the coil for different voltages.