baber/WOPTO huggingface dataset:
Patent GB-579727-A (GB)
Title: Improvements in electric motor control equipments
IPC: H02P5/68
Filed: 1940-11-01
Abstract: 579,727. Control of D.C. motors. TUSTIN, A., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 1, 1940, No. 14765. [Class 38 (iii)] In a system in which a motor 1 having a constantly excited field 3 has its armature supplied from the secondary brushes c, b of a " metadyne " generator provided with a variator winding 4, the latter is connected through a reversing resistance controller 5 to a D.C. source 13, 14 and also through a resistance 17 to the armature circuit of the motor so as to receive, in addition to current dependent on the position of the controller, a current depending on the voltage across the armature of the motor and operating to produce a component of torque opposing the rotation of the motor. Thus in the low speed positions of the controller the torque-speed characteristic of the motor falls steeply from a high stand-still value whilst in the higher speed positions of the controller the torque-speed characteristic falls less steeply so that the motor may accelerate the load to high speeds. The system is specially applicable to motors driving cranes since reversal of the voltage across the motor armature when the motor is driven by the load causes the current supplied to the variator winding through the resistance 17 to assist the current supplied through the controller 5 thereby providing a greater torque opposing movement of the motor by the load. In a modification, the variator winding is connected across the brushes a, c so as to be subjected to approximately half the voltage across the motor armature. In a further modification, a reactor is connected in series with the resistance 17 to cause changes in excitation of the variator winding to lag changes in voltage across the motor armature.
Patent GB-560941-A (GB)
Title: A new or improved change speed device
IPC: F16H9/06
Filed: 1942-10-23
Abstract: 560,941. Variable - speed gearing. KENWORTHY, J. M. Oct. 23, 1942, No. 14867. [Class 80 (ii)] Variable-speed gearing comprises a belt 15 connecting stepped pulleys 13, 14, on shafts 10, 11, the flanges between adjacent steps of each pulley having oppositely disposed passageways a, A, so that the belt may be moved from one step to the next when changing gear. The belt-shifting device comprises a spring-pressed pulley 16 engaging the belt 15 and guide rollers 25, all mounted on side cheeks 20 of a base 211 which is guided by a groove 23 in a base plate 22, the direction of the groove 23 corresponding with the angle of the stepped pulleys. The belt shifter is moved by a lever 24 which is pivoted at 26 and is engageable with notches in a plate 32. Pulley 14 is loose on the shaft 11 and has integral therewith a pulley 39 connected by a belt 41 to a pulley 42 on a countershaft 40. The latter has a second pulley 44 connected by a belt 45 with a pulley 43 loose on the shaft 11. Either pulley 14, 43, may be clutched to the shaft 11 by actuation of a lever 47 ; thus two speeds may be obtained for each setting of the main belt 15. The shaft 10 is driven by a belt 38 from a motor 12. The shafts 10, 40, may be adjusted by screw and slot means 52, 53, for adjusting the tensions of the belts.
Patent GB-487809-A (GB)
Title: Improvements in sieves and conveyors
IPC: B07B1/40
Filed: 1937-05-28
Abstract: 487,809. Jigging-conveyers. GROPPEL, K. May 28, 1937, No. 14892. [Class 78 (i)] [Also in Groups II and XXIV] A vibratory sieve or conveyer comprises two bodies vibrated in a circular or elliptical path by a crank-shaft, the axis of which approximately coincides with a horizontal axis through the centre of gravity of the system, the two bodies being connected with each other near their ends by double - armed horizontally mounted rockers. In the form shown in Fig. 3, the two sieves 1, 2 are vibrated by cranks set 180‹ apart, the crank-shaft being approximately coaxial with a horizontal axis through the centre of gravity of the system and supported solely by the two sieves. The two sieves are interconnected near each end and on each side by a rocker 4 carried resiliently in a fixed support 7, 8 and extending into sleeves 91 carried by the two sieves. In the form shown in Fig. 7, the sieves 1, 2 are suspended by links 4a above and below the crank-shaft 3 from rockers 4b which each move in a vertical plane. The sieve or conveyer 2 may be replaced by a counterweight. The arrangement enables the balance of the oppositely moving bodies to be obtained without using buffer springs.
Patent GB-868876-A (GB)
Title: A method of preparing compounds containing the groupingí¬nclí¬coí¬nclí¬ in a ring
IPC: D06L4/27
Filed: 1959-05-01
Abstract: The invention comprises the compound 1,3-dichloro-imidazolidone-2; and the method of preparing compounds containing the grouping -NCI.CO.NCI- in a ring, which are soluble in aliphatic chlorinated hydrocarbons, comprising suspending an appropriate compound containing the grouping -NH.CO.NH-(which is insoluble in aliphatic chlorinated hydrocarbons) and an inorganic neutralising agent in an aliphatic chlorinated hydrocarbon, introducing chlorine while stirring at 0-10 DEG  C., filtering off the inorganic salts formed, and recovering the desired compound by dehydrating and evaporating the solvent. The preferred neutralising agent is sodium bicarbonate and the preferred solvents are CCl4, CHCl3 and CH2Cl2.  Examples prepare 1,3-dichloro-imidazolidone-2, 1,3-dichloro-5,5-diisobutyl-hydantoin, 1,3-dichloro-5-methyl-hydantoin, 1,3-dichloro-5,5-dimethyl-hydantoin, and 1,3-dichloro-5,5-pentamethylene-hydantoin.  The products are stated to be use for treating wool to render it unshrinkable, for bleaching textile fibres other than wool, as general disinfectants, for modifying the characteristics of minerals discovered in exploratory drilling (e.g. oxidising sulphides to sulphates), and as reagents in chlorinations and oxidations.
Patent GB-435424-A (GB)
Title: Improvements relating to adjustable-throw crank shafts
IPC: B30B1/26
Filed: 1934-05-17
Abstract: 435,424. Shaft couplings. E. M. B. CO., Ltd., CADBURY, G. N., and SMITH, S., Moor Street, West Bromwich. May 17, 1934, No. 14899. [Class 80 (ii)] [See also Group XXVI] In an adjustable-throw crank shaft particularly for use in power presses, the shaft a has formed integrally therewith an eccentric portion b on which is mounted an eccentric sleeve c with an annular flange o at one side thereof. The sleeve is flanked by flanges d, e of which d is formed integrally with the shaft, e being formed separately and taking its bearing both on the end of the portion b and the adjacent portion of the shaft a. The throw is adjusted by rotating the sleeve c over the part b and securing it by a key-piece m, with projecting part p adapted to enter one of a number of slots n in the flange o. The piece m is secured by a screw q preferably inclined so that in screwing it in, the projection p is forced into the slot.
Patent GB-612185-A (GB)
Title: Improvements in guides for filamentary material
IPC: B65H57/26
Filed: 1946-05-17
Abstract: 612,185. Thread guides. LINDE AIR PRODUCTS CO. May 17, 1946, No. 14903. Convention date, May 30. 1945. [Class 120(ii)] A guide for filamentary material such as yarn, thread, wire and the like comprises a wear-resistant guiding member 15 connected by non-metallic, flexible and resilient means to a support 11. The flexible means may be a tube 13 of rubber, a vinyl resin polyethylene or polyvinylidene chloride, which receives at one end the matt surfaced end 21 of guide member 15 and a projecting pin 19 from the support 11 at the other. The guiding member 15 may be constructed from thin rods of corundum or spinel and is held in tube 13 frictionally or by suitable adhesive material.
Patent GB-1497352-A (GB)
Title: Process for recovering metals from metal ammine bearing ammonium salt solutions using ion exchange resin
IPC: C01G1/00
Filed: 1975-04-11
Abstract: 1497352 Metal recovery SHERRITT GORDON MINES Ltd 11 April 1975 [11 April 1974] 14903/75 Heading CIA Metal values are recovered from an aqueous ammonium salt feed solution containing the metal values as metal ammine ions having an ammonia co-ordination of at least 2, by (a) contacting the aqueous solution with a cationic ion exchange resin in the ammonium form so as to load the resin with the metal ammine ions, (b) separating the now depleted solution from the loaded resin, and (c) contacting the loaded resin with a controlled volume of aqueous ammonium salt solution having [NH 4 <SP>+</SP>] #2 molar, so as to strip the metal values from the resin; the concentrations of NH 3  (both free and complexed) and NH 4 <SP>+</SP> are controlled in the stripping solution so as to achieve a substantially complete removal of the ammonia and metal values from the resin. The recovery of Ni, Co, Cu, Cd, Mg, Mn, Zn and Fe values is illustrated.
Patent GB-1381669-A (GB)
Title: Depilatory concentrates and compositions
IPC: A61K8/46
Filed: 1972-03-30
Abstract: 1381669 Aerosol depilatory CARTERWALLACE Inc 30 March 1972 [2 April 1971] 14964/72 Heading C4X [Also in Division A5] An aqueous aerosol depilatory composition comprises thioglycolic acid and/or a salt (particularly a sodium, calcium and/or potassium salt) thereof, a fatty alcohol, a nonionic emulsifier, petrolatum, mineral oil, water, and a volatile liquid propellant. The alcohol may be stearyl, cetyl or lauryl alcohol, and the emulsifier a condensate of ethylene or propylene oxide with one of the foregoing alcohols. Suitable propellants are CCl 3 F, CHCl 2 F, propane, butane and pentane. Preferred amounts are 2-10% by wt. thioglycolic acid/salt; 2-6% each of the alcohol, emulsifier, petrolatum and mineral oil; up to 1% of a perfume; de-ionized water to 100%; and 5-15% propellant besed on the wt. of the aqueous depilatory concentrate. The pH is adjusted to 11À5-12À8 with alkali.
Patent GB-217916-A (GB)
Title: Process for the thermic treatment of steel and alloys susceptible of tempering
IPC: C21D1/56
Filed: 1923-10-06
Abstract: 217,916. Compagnie des Forges de ChÔtillon, Commentry, et Neuves- Maisons. Feb. 13, 1923, [Convention date]. Annealing and tempering.-Steel and alloy objects, such as rails, susceptible of tempering bv spraying or sprinkling with liquid, are, whilst at a temperature above the critical point, repeatedly and alternately sprayed or sprinkled with cooling liquid and allowed to cool in air, the temperature of the cooling liquid during each individual spraying being varied by supplying hot and cold water to a mixing-cook or nozzle controlling the supply of liquid to the pipe &c. effecting the spraying &c. A part only of the article, such as the head of a rail, may be sprayed or sprinkled with the cooling liquid. Specification 195,147 is referred to.
Patent GB-382241-A (GB)
Title: An improved safety device for preventing jamming of the running wheels of automobiles when braking
IPC: B60T8/74
Filed: 1932-05-26
Abstract: 382,241. Fluid - pressure brakes. MOHL, W., 42, Lange Laube, Hanover, Germany. May 26, 1932, No. 15021. Convention date, May 26, 1931. [Class 103 (i).] If the retardation of a vehicle due to the application of hydraulic brakes provided thereon is excessive, a flywheel driven by a wheel of the vehicle overruns this wheel thereby closing an inlet valve for the pressure liquid and permitting the outward movement of a plunger in a cylinder connected to the brake cylinders, thus diminishing the braking pressure. The flywheel 5 mounted on and driven by the hub 2 of a road wheel has cam surfaces 36 contacting with corresponding surfaces on a ring 13 capable of axial but not rotary movement with respect to the hub 2. A spring-controlled rod 16 abuts on the ring 13 through a ring 15. This rod is connected to a valve 25 in the supply pipe of the brake cylinder 26. A plunger 29 in a cylinder connected to the cylinder 26 is normally held in its inner position by a lever 30 under the action of a spring 28 of such strength that the pressure of the liquid alone is unable to move the plunger. If, however, on account of excessive retardation of the wheel, the flywheel 5 rotates relatively to the hub 2, the ring 13 and rod 16 are displaced laterally, the valve 25 is closed and the rod by engaging the lever 30 permits the plunger 29 to move outwards thus reducing the braking pressure. Locking of the wheels is thus prevented. A non-return valve 31 in a byepass around the valve 25 permits release of the brakes by the operator when the valve is closed.
Patent GB-394803-A (GB)
Title: Improvements in electric secondary cells and method for their production
IPC: H01M4/02
Filed: 1932-05-27
Abstract: 394,803. Accumulators. DUN L 0 P RUBBER CO., Ltd., 32, Osnaburgh Street, London, and MADGE, E. W., Fort Dunlop, Birmingham. May 27, 1932, No. 15044. [Class 53.] The plates of an accumulator are embedded in microporous rubber which is formed in situ in the cell and which may be provided with vents for the escape of gas. The vents may be made by placing wires against the plates before the rubber is introduced into the cell and removing the wires after the rubber has been vulcanized. The rubber filling is obtained by pouring a sensitized latex mixture. over the plates until they are completely immersed and gelling by hot water. Vulcanization is produced by hot water and steam pressure. The rubber in the mixture is derived from aqueous dispersions of rubber, gutta-percha, balata, synthetic rubber, waste or reclaim &c., or from the concentrates described in Specifications 219,635 and 290,313, [both in Class 70, Indiarubber, &c.]. Gelling may take place during the vulcanization, or the methods described in Specifications 346,810, 351,937, and 377,751, [all in Group V], may be used.
Patent GB-443200-A (GB)
Title: Method of magnetically recording and reproducing oscillations
IPC: G11B5/127
Filed: 1934-05-18
Abstract: 443,200. Electromagnetic sound and like recording and reproducing apparatus. LIGUORI, G., 50, Central Park South, New York, U.S.A. May 18, 1934, No. 15050. Void [Abridged as open to inspection under Sect. 91 of the Acts, Nov. 20, 1934]. [Class 40 (ii)] In apparatus for electromagnetically recording and reproducing sound and like oscillations, during recording relative movement occurs between a magnetizable member f such as a wire or strip and an electromagnet b adapted to produce an open magnetic flux, the members f, b being in contact with each other, whilst during reproduction relative movement occurs with the member f close to but without touching the electromagnet which is inductively influenced thereby. In the construction shown, the electromagnet b, which is used both for recording and reproducing, is connected to a screw d, by means of which it may be adjusted either into contact with or slightly spaced from the record body f. The coil b may be used without a core a. The magnetizable member f is preferably of uniform cross-section, but it is stated that "special effects may be obtained by providing changes in the cross-section as well as in the distribution of the magnetizable matter within the member." The oscillations to be recorded or reproduced may be transmitted directly or indirectly to or from the coil b, e.g. by wired or wireless transmission.
Patent GB-742820-A (GB)
Title: Improvements relating to soldering and to palladium alloys suitable for use therein
Inventor: RHODES EDWIN CLEMENTS
IPC: B23K35/30
Filed: 1953-05-29
Abstract: 742,820. Nickel-palladium-manganese alloy solder. MOND NICKEL CO., Ltd. May 20, 1954 [May 29, 1953], No. 15055/53. Class 82(1). A ternary soldering alloy consists, apart from impurities, of Ni, Pd and Mn and has a composition within a range represented on the drawing by the area A B C D E A. The alloy may be used for soldering together parts each of an alloy consisting predominantly of Ni or Ni + Co with at least 5 per cent Cr with or without other elements or parts each of austenitic Cr-containing steels or parts one of which is formed of such a Ni or Ni + Co alloy and the other is formed of an austenitic Cr-containing steel. The Provisional Specification describes alloys lying within a larger area the limits for the individual components being: Specification 671,072 is referred to.
Patent GB-129323-A (GB)
Title: Improvements in or relating to Metal Reflectors.
Inventor: FERY CHARLES JEAN VICTOR
IPC: G02B5/08
Filed: 1917-10-17
Abstract: 129,323. Fery, C. J. V. Oct. 23, 1916, [Convention date]. Thermometers and pyrometer.-The surfaces of metal reflectors for concentrating radiations are provided with a protecting-layer of a varnish comprising asphalt which prevents atmospheric action from reducing their reflecting powers while not appreciably diminishing their ability to reflect heat radiations; reflectors so treated may be used for collecting the radiant energy of the sun and in pyrometric apparatus. The asphalt may be dissolved in benzine and applied in one or more coats to reflectors consisting of a thin coat of polished silver, gold, or other metal on a glass or other base, each coat being rendered insoluble by light action before applying the next.
Patent GB-1501604-A (GB)
Title: Synthesis of 3-substituted amino-5-pyrazolones
IPC: C07C273/18
Filed: 1976-04-13
Abstract: 1501604 3-Substituted amino-5-pyrazolones FUJI PHOTO FILM CO Ltd 13 April 1976 [16 April 1975] 15139/76 Heading C2C [Also in Division G2] 3 - Substituted amino - 5 - pyrazolones of Formula I wherein R 1  represents H, an aliphatic, cycloaliphatic, aralkyl or aryl group; R 2  represents an aliphatic, aralkyl, heterocyclic aryl or acyl group; l is 0 or 1 and where l is 0, R 1  and R 2  together represent an alkylene group optionally interrupted by a hetero atom; X is O or S; and Q represents an aliphatic, aryl or aralkyl group containing at least one sulpho group or salt thereof, are prepared by reacting a # - substituted - amino - # - alkoxy acid derivative of Formula II and a hydrazine of formula H 2 N-NH-Q in an organic acid-organic base system, wherein R 3  represents an aliphatic or aralkyl group; Y represents a hydroxy, alkoxy, aralkoxy or primary, secondary or tertiary amino group. The pyrazolones of Formula I may be used as magenta colour formers, spectral sensitizers and dyes in photographic materials. The starting materials of Formula II may be prepared by reaction of a #,#-alkoxyacrylic acid ester with amines, or by reaction of a # - amino - #- alkoxyacrylic acid ester with an acid halide, sulphonyl chloride, isocyanate or thioisocyanate.
Patent GB-1087442-A (GB)
Title: Improvements in suitcases
IPC: A45C13/02
Filed: 1963-04-18
Abstract: 1,087,442. Bags. P. R. RENTON. May 14, 1964 [April 18, 1963], No. 15222/63. Heading A4G. [Also in Division B8] In order to prevent articles partly filling a suitcase from moving, a plastic coated member, in the form of a flat-topped wire figure of eight is pressed down over the articles and engages teeth secured to the case walls.
Patent GB-417273-A (GB)
Title: Improvements in or relating to the production of compositions comprising chlorinated rubber and synthetic plastics
IPC: C08L15/02
Filed: 1933-05-26
Abstract: A method of producing compositions containing chlorinated rubber is characterized by emulsifying a solution of chlorinated rubber in a water-immiscible organic solvent with an aqueous solution of an incomplete number of the constituents necessary for forming a synthetic plastic and then incorporating the remaining ingredients essential to form the said synthetic plastic so that the plastic is formed in situ.  In an example a solution of chlorinated rubber in carbon tetrachloride is shaken with formalin and the emulsion heated under reflux with phenol and a little hydrochloric acid as catalyst. The mixture is heated for 1 hour and then poured into water.  A yellow dough-like mass is obtained which is kneaded in warm water to remove excess phenol &c., then heated with water, powdered, and dried.  This powder may be moulded hot.  Other synthetic plastic reactants mentioned are carbamide, thiocarbamide, casein (e.g. ammoniacal).  The synthetic plastic may be of the polyhydric alcohol-polybasic acid type, the polyhydric alcohol with water being first emulsified with the chlorinated rubber solution.  The emulsification may be promoted by the addition of a dispersing agent.ALSO:A method of producing compositions containing chlorinated rubber is characterized by emulsifying a solution of chlorinated rubber in a water-immiscible organic solvent with an aqueous solution of an incomplete number of the constituents necessary for forming a synthetic plastic and then incorporating the remaining ingredients essential to form the said synthetic plastic so that the plastic is formed in situ.  In an example 80 parts by weight of a solution of chlorinated rubber in carbon tetrachloride (containing 10 parts of chlorinated rubber) is shaken with 50 parts of formalin and the emulsion heated under reflux with 40 parts of phenol and a little hydrochloric acid as catalyst.  The mixture is heated for 1 hour and then poured into water.  A yellow dough-like mass is obtained which is kneaded in warm water to remove excess phenol &c., then heated with water, powdered, and dried.  This powder may be moulded hot. Other synthetic plastic reactants mentioned are carbamide, thiocarbamide, casein (e.g. ammoniacal).  The synthetic plastic may be of the polyhydric alcoholpolybasic acid type, polyhydric alcohol with water being first emulsified with the chlorinated rubber solution.  The emulsification may be promoted by the addition of a dispersing agent.
Patent GB-1222508-A (GB)
Title: Improvements in or relating to the separation of minerals
Inventor: WINDLE WILLIAM
IPC: B03D1/001
Filed: 1967-04-03
Abstract: 1,222,508. Purifying clay. ENGLISH CLAYS LOVERING POCHIN & CO. Ltd. 24 April, 1968 [3 April, 1967], No. 15238/67. Heading B2H. A mineral impurity is separated from a crude clay mineral by adding to an aqueous slurry of the crude clay mineral (a) a hydrophobic collector which is selectively adsorbed on to the mineral impurity and (b) a non- polar organic liquid in an amount equal to 5 to 50% by volume of the aqueous slurry, agitating the resultant mixture to effect mixing of the organic and aqueous phases without a stable emulsion being formed, and thereafter separating the organic and aqueous phases so that the mineral impurity, which is concentrated in the organic phase can be collected. The hydrophobic collector may be oleic acid, an amine or petroleum sulphonate. The non-polar organic liquid may be a paraffin, benzene, petroleum spirit or carbon tetrachloride. The collector and the organic liquid are preferably mixed together before being added to the aqueous slurry. The mineral impurity on entering the non-polar organic liquid will either float or sink depending whether the liquid is lighter or heavier than water. Separation of the two phases may be effected by gravity or by centrifugal force using a cyclone or centrifuge. Before the addition of the organic liquid, the slurry may have its solids content adjusted to 5-25% by weight and its pH raised to an alkaline value by the addition of an alkali, e.g. ammonium hydroxide solution. A deflocculant, e.g. sodium silicate may also be added to deflocculate the clay. Types of clay mentioned include: china clay and kaolin. Impurities specified are tourmaline and titania. An example of apparatus that may be used comprises a mixing vessel 1 containing a reciprocating agitator in the form of a perforated disc 2 on a shaft 3. The contents of the vessel 1 may be discharged into a separating funnel 5 for the separation by decanting of the aqueous and organic phases.