baber/WOPTO huggingface dataset:
Patent GB-1141775-A (GB)
Title: Production of particulate, non-pyrophoric metals
IPC: B22F9/18
Filed: 1966-06-15
Abstract: 1,141,775. Producing metals. CIBA Ltd. June 15, 1966 [June 25, 1965], No.26720/66. Heading C7D. Non-pyrophoric Ti, Zr, Hf, V, Nb, Ta, Mo, W, U or Th powder is produced by treating a halide of the appropriate metal with a hydrogen plasma using 5-10 moles hydrogen per mole halide. The halide is preferably a chloride or oxychloride.
Patent GB-203208-A (GB)
Title: Improvements in grabs
IPC: B66C3/08
Filed: 1922-10-03
Abstract: 203,208. Hone, G. J., and Westwood & Co., Ltd., J. Oct. 3, 1922. Grab-buckets.-Relates to single-chain grabs in which the chain or rope passes through pulleyblocks f, g on lower and upper frames c, d, the buckets being hinged to the lower frame at b, supported from the upper frame by links C', and opened by lowering the frame b when the grab is suspended by a hook h pivoted on the upper frame. When the open grab, suspended by the hook h, is again lifted, the buckets are prevented from closing by a catch or catches on the buckets, controlled by the position of the hook and engaging the lower frame. As shown, catches l on arms j pivoted on the buckets at j<1>, are held up against a pin k on the lower frame by a chain p attached to the lower end of the hook, the pull of the chain lifting a pivoted plate m and blade springs o. The catches l therefore engage the pin k and prevent the links c<1> from spreading, so that the grab is lifted from the suspender ring. The weight of the parts and the action of the springs o then draw the hook clear of the suspender ring with the plate m lowered, and when the open grab rests on the ground, the buckets open further and the arms drop, the catches l becoming disengaged so that the grab can be closed by hauling on the lifting chain. The lower frame c is prevented from swinging on the hinge pin b by telescopic guides q, r, s.
Patent GB-1139348-A (GB)
Title: Retarding means for rotary spinning spindles
IPC: D01H7/44
Filed: 1966-06-15
Abstract: 1,139,348. Spindle drag arrangements. JAMES F. LOW & CO. Ltd. and L. G. KINNEAR. 15 Sept., 1967 [15 June, 1966], No. 26814/66. Heading D1D. A vaned wheel 2, 3 mounted on and rotating with a spindle 1 together with a stationary vane device 5 disposed adjacent the wheel periphery to impede the flow of air thrown outward by the rotating wheel imposes a drag on the spindle. The vane device comprises a check plate 4 arranged in a plane at right angles to the spindle axis and supporting a vane 5 disposed at right angles to the plate 4. The plate 4 is rotatable about an axis 7 to adjust the positioning of the vane 5 with respect to the wheel. The vane device also includes an arm 8 connected to an operating rod joined to a tension spring 12 to normally urge the rod in a direction which causes the vane 4 to be swung towards the vane wheel. A friction pad 13 is provided on the edge of the check plate 4 so that at the start up of rotation of the spindle the pad 13 is urged due to the spring 12 into braking contact with the flange 14 of the wheel whereas at normal higher rotational spindle speed the air flow from the wheel swings the device 4 away from the wheel against the thrust of spring 12. This swinging movement is limited by :a stop 15.
Patent GB-1416585-A (GB)
Title: Flame retardant styrene polymer compositions
IPC: C08L71/12
Filed: 1973-06-05
Abstract: 1416585 Flame retarded styrene polymers MICHIGAN CHEMICAL CORP 5 June 1973 [6 June 1972 8 Feb 1973] 26867/73 Heading C3P A flame retardant composition comprises a styrene polymer and a flame retardant additive which is a compound of the formula in which Z is bromine; each of m and m<SP>1</SP>, which may be the, same or different, is an integer of 1-5; and T represents a straight or branched chain alkylene or alkylidene group having 1-6 carbon atoms. Specific examples of T are Examples of-specific flame retarding compounds are - - and The styrene polymer may be polystyrene itself, a copolymer containing more than 60 wt. per cent of styrene units and/or units of a substituted styrene and high impact polystyrene. Other additives such as pigments, stabilizers, dyes, plasticizers and adjuvants for the flame retarder, such as Sb 2 O 3 , SbCl 3 , SbI 3 , SbOCl, As 2 O 3 , As 2 O 5 , ZnBO 4 -H 2 O, 2 ZnO . 3 B 2 O 3  . 3À5 H 2 O and stannous oxide. The amount of flame retarder is preferably 1-15 wt. per cent of the total composition.
Patent GB-260762-A (GB)
Title: Improvements relating to pillion seats for motor cycles
IPC: B62J1/14
Filed: 1925-10-27
Abstract: 260,762. Cochrane, E. H. Oct. 27, 1925. Seat attachments. -A pillion seat adapted to enable a lady to sit facing the direction of motion, with both legs on the same side of the seat, is shaped as shown in plan at b, and is provided with a pommel consisting of am upwardly-projecting protuberance a on one side near the forward end. On the opposite side a hand grip c may be provided. The pommel a may be attached to, or formed integrally with, the top bar of the underframe of the seat.
Patent GB-443650-A (GB)
Title: Improvements relating to apparatus for the rectification of polyphase alternating electric currents
IPC: H02M7/06
Filed: 1934-09-19
Abstract: 443,650. Rectifying alternating current. KIDNER, H. G., and WESTING- HOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. Sept. 19, 1934, No. 26950. [Class 38 (ii)] In rectifying polyphase current, the number of phases is increased by a phase multiplying transformer such that the sum of the original phases and the derived phases is an odd number, and a full wave rectifier is associated with each phase of the transformer secondary. The drawing shows a typical arrangement. Other arrangements described but not shown, comprise (1) a transformer with a delta-connected secondary and auxiliary windings connected to points on the delta, and (2) a transformer with two unequal secondaries for each phase connected to form an irregular hexagon network and auxiliary windings connected to points on the hexagon.
Patent GB-195672-A (GB)
Title: Improvements in or relating to playing balls, floats and the like
IPC: A63B37/02
Filed: 1921-10-12
Abstract: 195,672. Plantation Rubber Manufacturing Co., Ltd., and Dessau, M. M. Oct. 12, 1921. Line floats; net floats and buoys. - Golf and tennis balls, floats for valves and fishing purposes, Lifebuoys, cushions, buffers, washers, &c. have cores built up of raw rubber strip which is twisted or otherwise acted upon to give it an irregular cord-Like character and is wound upon a nucleus of rubber, paper, metal, glass or other material. As shown, a ball is formed of a nucleus a of paper over which twisted strips of raw rubber b are wound and the ball completed by a cover c. The core may be subjected to a cold vulcanization process after being wound.
Patent GB-457413-A (GB)
Title: Improvements in or relating to means for controlling automatic diesel electric generators, and other similar combined sets
IPC: H02P9/00
Filed: 1935-10-01
Abstract: 457,413. Self-contained supply systems; exciting dynamo-electric machines. KYTE ENGINEERING & MOTOR CO., Ltd., and READ, A., Elswick Road, Newcastle - on- Tyne. Oct. 1, 1935, No. 27080. [Classes 35 and 38 (iv)] [See also Group XXXVII] With fixed speed generators ; selecting sources in service.-Relates to a supply system comprising a prime mover 2 and generator 1 in which the generator is run as a motor from a battery 7 on closure of the switch 9 to start the prime mover and consists in providing the generator with three field windings, one being the conventional shunt winding 3, the second 5 being in series with the external load circuit 10, and the third 6 in series in the battery charging and motor starting circuit and connected so as to produce a field in opposition to that of the others when the generator is generating. This arrangement of windings ensures a constant trickle charge of the battery despite load variations. Fig. 2 shows a modification in which the set is started automatically, when the load exceeds a given amount. A relay coil 12 closes a switch 13 in the circuit of a heater 14 which causes, after a time lag, a thermally actuated switch 15 to close, thus completing the circuit of a coil 17 which operates the starting switch 9a. Time lag operation of the switch 15 is to ensure that momentary overloads do not result in the engine starting. The system is de-energized if the engine fails to start in a given time by means of a thermal switch 18 operated by a heater 19, the circuit of which is closed by a relay 11, 21 while starting current flows. The mercury switch 15 is arranged as shown in Fig. 3, and is operated by a bimetallic strip 16 having a heater 14 mounted on it. The mercury switch 18 is arranged as shown in Fig. 4. When the bimetallic strip 22 is cold the switch is held in the position shown in full lines. Reference has been directed by the Comptroller to Specifications 25331/11 and 317,302, [both in Class 35].
Patent GB-682189-A (GB)
Title: Improvements in or relating to arrangements for varying the amplitude of generated oscillations
Inventor: DALY CHARLES TREVOR
IPC: H03C3/09
Filed: 1949-10-21
Abstract: 682,189. Automatic volume control. STANDARD TELEPHONES & CABLES, Ltd. Oct. 21, 1949, No. 27086/49. Class 40 (iv). [Also in Group XL (c)] In a telephone repeater system having its gain controlled by a thermistor heated by the output of an oscillator, the amplitude of which is controlled by a pilot signal, the oscillator has its output controlled by the rectified pilot and rectified negative feedback is applied to the oscillator control electrode to stabilize and linearize the control. The oscillator shown comprises a frequency-determining circuit 2, 4 coupled to the output terminals 9, 8 and to a potentiometer 10 providing the regenerative feedback. Part of the output is fed through a capacitor 16 to a voltage doubler rectifier circuit, the output of which is fed through an R.C. smoothing circuit 24, 25 or a low-pass filter and the rectified pilot input circuit 20, 21 to the control grid where it acts in opposition to the rectified pilot. The capacitor 16 feeding the voltage-doubler rectifier may alternatively be connected to a high impedance inserted between the transformer and the H.T. supply, Fig. 2 (not shown), in which case a low impedance rectifier circuit may be used. Specification 545,866 is referred to.
Patent GB-155962-A (GB)
Title: Improvements in shock absorbers
IPC: B62M25/00
Filed: 1919-11-04
Abstract: 155,962. Caddick, W., and Ruby Cycle Co., Ltd. Nov. 4, 1919. Securing chain-wheels on shafts.-In shockabsorbers for chaindriven motor-cycles of the type comprising buffer elements located between radially-disposed webs on two coacting chambers, each chamber is provided with an extension sleeve, the sleeve 1<x> of the outer chamber 1 forming a bearing for the sleeve 2<x> of the inner chamber. A shouldered neck on the sleeve 2<x> carries the chain-wheel 3. The outer chamber is locked to the engine shaft Z by a nut 8 screwed on to the end of the shaft to form an extension bearing. The inner chamber is held in position by a lock-nut 5.
Patent GB-848606-A (GB)
Title: Copolymerization of monoethylenically unsaturated monomers in the presence of polyacrylonitrile
IPC: C08F265/08
Filed: 1958-08-25
Abstract: Graft polymers are made by polymerising in the presence of a catalyst acrylonitrile, with or without another ethylenically unsaturated compound, in an aqueous dispersion of pH 2-7, increasing the pH to 7-12 and then polymerising therein vinyl or vinylidene chloride. Monomers copolymerisable with acrylonitrile are acrylic acid, acrylates, methacrylates, acrylamide, methacrylamide, methacrylonitrile, vinyl acetate, vinyl pyridine, unsaturated sulphonic acids, e.g. styrene sulphonic acid, and, as a cross-linking monomer, triacrylyl-perhydrotriazine.  As a catalyst there is specified a mixture of ammonium persulphate and sodium bisulphite, which may be used in both polymerisation stages or in the first polymerisation stage only followed by the use of azo-bis-dimethyl-valeronitrile.  The resulting polymers are soluble in dimethyl formamide and fibres may be spun from such solutions with the use of a kerosene hydrocarbon coagulating bath. Specification 824,226 is referred to.
Patent GB-659818-A (GB)
Title: Improvements in or relating to loudspeaker units
IPC: H04R1/28
Filed: 1947-10-10
Abstract: 659,818. Sound directing appliances. KOLSTER BRANDES, Ltd., and TRIER, R. H. Oct. 10, 1947, No. 27232. [Class 13] [Also in Group XXXIX] A cone loud-speaker 5 is mounted at the top of an open column 1 lined with sound - absorbent material, and is surmounted by a conical reflector 7 diffusing the sound horizontally. The column 1 may be made of plywood curved to reduce panel resonance. Specification 659,817 is referred to.
Patent GB-407744-A (GB)
Title: Improvements relating to the combustion of fuel gas for the heat treatment of materials such as steel
IPC: F23D99/00
Filed: 1932-10-01
Abstract: 407,744. Gaseous - fuel furnaces. BRITISH FURNACES, Ltd., and HOPKINSON, P., Derby Road, Chesterfield. Oct. 1, 1932, No. 27285. [Classes 51 (i) and 51 (ii).] In a gas-fired furnace, intended particularly for the heat-treatment of steel, gas and air are supplied, at substantially equal velocities and in any desired proportions, in horizontal non-turbulent contacting streams which interdiffuse into one another with the production of a relative long hot luminous flame. As shown, the burner device comprises a frame 2 in which is assembled a plurality of refractory elements 4 of the form shown in Fig. 3, gas being supplied from manifolds 3 to the central circular nozzles, while the spaces 8 between the stream-lined projections serve for the passage of air from the supply hood 5. Along the lower side of the burner unit there is arranged a continuous row of nozzles 6 which serve to project a screen of either fuel gas or air between the burning mixture and the charge being heated. When a screen of fuel gas is employed, the air apertures between the nozzles 6 are blocked up as shown as 11, Fig. 1.
Patent GB-916437-A (GB)
Title: Improvements in fatty acid polyamide resins
IPC: C08G69/08
Filed: 1960-08-05
Abstract: A process for the preparation of a polymer by condensation polymerization of one or more N-acylamido fatty acids comprises condensing an unsaturated fatty acid with a nitrate in the presence of an acid catalyst to form an N-acylamido fatty acid and heating the N-acylamido fatty acid or acids under substantially non-oxidizing conditions at a temperature of about 150 DEG  to 300 DEG C. for a time sufficient to form a thermoplastic resin.  Specified fatty acids are vinylacetic, undecylenic, lauroleic, myristoleic, palmitoleic, oleic, gadoleic and eracic acid.  Specified nitriles are cyclohexyl, benzo- and benzyl nitrile.  The examples describe the preparation of resins from:-(I) to (IV) amidostearic acid; (V) formamido stearic acid; (VI) 10-acetamido undecanoic acid; (VII) succinamido stearic acid and (VIII) (a) butyramidoamidostearic acid and (d) acetamido-butanoic acid.ALSO:A process for the preparation of a polymer by condensation polymerization of one or more N-acylamido fatty acids comprises condensing an unsaturated fatty acid with a nitrile in the presence of an acid catalyst to form an N-acylamido fatty acid and heating the Nacylamido fatty acid or acids under substantially non-oxidising conditions at a temperature of about 150 to 300 DEG C. for a time sufficient to form a thermoplastic resin. Specified fatty acids are vinyl acetic, undecylenic, lauroleic, myristoleic, palmitoleic, oleic, gadoleic and erucic acid.  Specified nitriles are cyclohexyl, benzo, benzyl and alkyl benzyl nitriles. The examples disclose the preparation of resins from:-(I) to (IV) acetamido stearic acid; (V) formamido stearic acid; (VI) 10-acetamido-undecanoic acid; (VII) succinamidostearic acid and (VIII) (a) butyramidostearic acid; (b) capramidostearic acid; (c) tridecylamidostearic acid and (d) acetamidobutanoic acid.
Patent GB-1154758-A (GB)
Title: Organolead Nitrogen Compounds and their preparation
Inventor: WORREL CALVIN J
IPC: C07F7/24
Filed: 1967-06-14
Abstract: 1,154,758. Organo-lead nitrogen compounds. INTERNATIONAL LEAD ZINC RESEARCH ORGANIZATION. 14 June, 1967 [13 Dec., 1966], No. 27378/67. Heading C2J. The invention comprises tri-organo lead cyanoguanidines of the general formulµ: (R 3 Pb)C 2 N 4 H 3  and (R 1 Pb)C 3 N 5 H 2  wherein R is an aryl, alkyl, aralkyl, or alkaryl group containing up to 12 carbon atoms, which may be prepared by reacting a trialkyl- or triaryl-lead hydroxide with cyanoguanidine or dicyanoguanidine in an organic solvent at ambient temperature for about 16 hours under a nitrogen atmosphere. The unreacted cyano-guanidine may be removed by crystallization from alcohol and the solution evaporated to give the product. Alternatively solvent extraction may be used. The compounds of the invention are useful as anti-wear additives in lubricating oils (see Specification 1,154,759), for plating process and as chemical intermediates.
Patent GB-318839-A (GB)
Title: Manufacture of new dyestuffs and intermediate products
IPC: C09B45/24
Filed: 1929-09-09
Abstract: 318,839. Soc. of Chemical industry in Basle. Sept. 8, 1928, [Convention date]. Samples furnished. Azo dyes are made by esterifying the hydroxy group in J acid, treating the ester with an oxidizing agent and combining the azine-like condensation product thus obtained with a diazo compound. The dyestuff may be made in substance or on a substratum and in some cases may be treated with an agent yielding metal. In examples (1) 5 : 5<1> -dioxy-7 : 7<1>-disulpho-1 : 2<1> : 1<1> : 2-dinaphthazine is obtained by esterifying J acid with p-toluenesulphonchloride, oxidizing with alkalihypochlorite hydrolysing. It yields the dihydroazine on alkaline reduction. (2) The azine from J acid is coupled with diazotized 4- chlor-2-aminophenol-6-sulphonic acid. Cotton is dyed grey-blue when after coppered of when dyed in presence of copper sulphate. The soluble copper compound which dyes silk grey is made by treating with copper sulphate and the chromium compound from chromium fluoride. The latter dyes cotton and viscose green-grey. (3) The azine from J acid is coupled with diazotized 4-nitro-2- aminophenol-6-sulphonic acid. Cotton is dyed green-grey when after-coppered or after-chromed with chromium fluoride or dyed in presence of a chromium salt. The soluble copper compound which is made by treating with copper sulphate and the chromium compound from chromium fluoride. The latter dyes viscose, cotton, wool and silk olive-green. The mixed chromiumcopper compound is made by treating with a solution containing copper sulphate and chromium fluoride. It dyes cotton green-grey. (4) The azine from J acid is coupled with diazotized sulphanilic acid or p-nitraniline. Azines are made bv treating an aminonaphthol or a sulphonic acid thereof with an esterifying agent (to protect the OH group), oxidizing and hydrolyzing. In an example, 8 : 81-dioxv- 6 : 6<1>-disulpho-1 : 2<1> : 1<1>: 2-dinaphthazine is obtained from 2 : 8 6-acid as in example (1) above.
Patent GB-698849-A (GB)
Title: Obturator or valve for fluids
Inventor: RAMECKERS AUGUST JOSEF ROBER
IPC: F16K7/16
Filed: 1951-11-22
Abstract: 698,849. Valves. NAAMLOOZE VENNOOTSCHAP HOLLANDSCHE KUNSTZIJDE INDUSTRIE. Nov. 22, 1951, No. 27435/51. Class 135 An obturator, particularly for corrosive liquids, has a valve seat 5 and valve body 4 both oblique to the axis of the valve housing inlet and outlet connections 1, 2, the valve plate 10 being carried inside a rubber membrane 6 while the spindle 12, which is perpendicular to the general direction of fluid flow, carries the plate movably attached at an angle at its lower end. The plate is carried loosely on a bolt 11 screwing into the spindle the lower end 13 of which is curved. The spindle, shown for manual operation by the screwed handle 15, may be connected to an air-operated piston, or operating air may be connected to the upper membrane space.
Patent GB-1087419-A (GB)
Title: Improved artificial tooth for removable dental prostheses
IPC: A61C13/00
Filed: 1965-06-29
Abstract: 1,087,419. Artificial teeth. E. GHINASSI. June 29, 1965 [July 4, 1964], No. 27449/65. Heading A5R. An artificial tooth has a root formed as a cylindrical spigot 5, with a semi-circumferential groove 6 extending over its rear side between a pair of radial steps 7 for anchoring the root in the material of the denture base in which it is embedded. The groove extends substantially parallel to the gingival line (11, see Fig. 4, not shown),
Patent GB-349870-A (GB)
Title: Improvements in ship and tank construction
IPC: B63B3/14
Filed: 1930-09-15
Abstract: 349,870. Ships' framing. SPANNER, E. F., 13, Shooters Hill Road, Blackheath, London. Sept. 15, 1930, No. 27523. Grant of Patent opposed. [Class 113 (ii).] A construction for connecting stiffening members where they are stopped at a bulkhead comprises a plate c passed beneath and across the boundary bars of the bulkhead d the ends of the plates running over the flange of the stiffener a to which the shell plating is attached by rivets e. Modifications are described in which the strip is wider and is attached directly to the shell plating bv an additional row of rivets and in this construction the strip may be joggled over the flange of the stiffener or a packing piece may be inserted between the strip and the shell plating. Specification 349,854 is referred to.
Patent GB-990197-A (GB)
Title: Improvements relating to torque indicating mechanisms
Inventor: BROWN RICHARD LESLIE
IPC: G01L3/06
Filed: 1962-07-18
Abstract: 990,197. Measuring torque. HOPKINSONS Ltd. July 26, 1963 [July 18, 1962], No. 27568/62. Heading G1W. A final gear reduction stage of a rotary actuator drive of a torque limiting or indicating mechanism includes a single helical spur pinion 2 which is capable of axial movement against the force of a spring 14; and upon a predetermined torque being exceeded, end thrust on the pinion causes axial movement which is communicated to indicating or torque controlling means. The pinion 2 drives a final reduction gear 1 and is fixed on a shaft 3 which is free to move axially in bearings 4, 5. A forked lever 8 links the shaft 3 to and communicates its movement to cylindrical housing 12 enclosing the spring 14. The spring normally holds the shaft 3 in a central position and is compressed if the housing 12 moves in either direction on stationary rod 13. The displacement of the shaft 3 may be used to actuate directly a limit switch 22; or the movement of the housing may operate limit switches 25. Alternatively the lever 8 may communicate the shaft movement, through its spindle 9 to an indicator calibrated in units of torque or it may co-operate with adjustable means to control the torque (Figs. 2, 3 not shown). In a further embodiment (Fig. 4 not shown) the pinion 2 forms part of a sleeve which is slidable but not rotatable on a shaft and the shaft is not movable longitudinally, also the spring is coaxial with the sleeve.
Patent GB-438232-A (GB)
Title: Improved device for removing drills or other articles from their shafts
IPC: E21B19/18
Filed: 1934-09-26
Abstract: 438,232. Removing drills &c. from shafts. BEDFORD, R. A., Grange Farm, Stumperlowe, Sheffield. Sept. 26, 1934, No. 27653. [Class 61 (iii)] A device for removing a drill bit &c. from a shaft comprises a base a provided at one end with a fixed jaw b and a pivoted jaw c actuated by a pivoted cam member f to grip the drill shaft h and at the other end of the base with an impact member n pivoted and slidably mounted on a pivot o so as to be engageable behind the end of the drill bit t and actuated by a cam member q which is bifurcated to straddle the drill shaft and swings on pivots p.