baber/WOPTO huggingface dataset:
Patent GB-544060-A (GB)
Title: Concentrated aqueous solutions of the ammonium salts of disubstituted dithiophosphoric acids
IPC: C07F9/165
Filed: 1940-10-16
Abstract: 544,060. Froth flotation reagents. AMERICAN CYANAMID CO. Oct. 16, 1940, No. 15350. Convention date, Oct. 21, 1939. [Class 82 (ii)] [Also in Group IV] Concentrated aqueous solutions of ammonium salts of dialkyl and diaryl dithiophosphoric acids are prepared by. adding the acids to concentrated aqueous ammonia in insufficient quantity to neutralize the acids. The solutions so prepared are non-corrosive and stable and are suitable for use as promoters or collectors in the froth flotation or mineral separation of sulphide ores. The acids used as starting material may contain cresylic acid or other impurities, and known promotors or frothing agents, e.g. thiocarbanilide may be added to the solutions produced. In examples (1) a mixture containing cresyl or xylenyldiaryldithiophosphoric acid and cresylic acid is added to excess of concentrated aqueous ammonia. (2) crude di-secondary amyldithiophosphoric acid is added to concentrated ammonia.
Patent GB-509952-A (GB)
Title: Improvements in or relating to tubular heat exchanges
IPC: B21D53/06
Filed: 1938-05-23
Abstract: 509,952. Jointing tubes to headers. BLAIS, E. May 23, 1938, No. 15366. [Class 99 (i)] [Also in Groups XIII and XXII] The copper &c. tubes of a radiator &c. core are secured together at their ends by a fusible bonding material, e.g., a solder consisting of 45 per cent by weight of silver, 30 per cent of copper and 25 per cent of zinc, having a relatively high mechanical strength and a melting point above 1200‹F., means being provided for absorbing heat from the tubes during the soldering operation to prevent annealing of the tubes. Said means may consist of ferrules applied to the ends of the tubes, rods inserted in the tubes or a current of inert cooling gas forced over them. In constructing a core with tubes having enlarged ends in which ferrules are inserted, a frame formed of two tubes secured to the ends of notched spacing strips 6, Fig. 8, is placed upon a corrugated metal sheet 29, Fig. 9, disposed in a clamp 20 whereupon the remaining tubes are inserted in the notches of the strips to complete the lowermost row of tubes of the core. By the superposition of further strips and tubes the core is built up and finally covered with a corrugated plate, the assembly being clamped in position by adjustable plates 22, 23. The parts are then soldered together, as shown in Fig. 11, and the core is removed from the clamp and cleansed in a 5 per cent solution of sulphuric acid. After cleansing, the core is washed in a stream of cold water, immersed in hot water to remove all traces of acid and dried in an oven. Removable heat-absorbing bars 27, Fig. 10, may be inserted in the tubes prior to the soldering operation. The core is secured to the usual headers 31, Fig. 13, by metal strips 36 soldered to the corrugated plates 29 and the flanges of the headers. If desired, the tube ends may be directly secured together, the spacing strips being dispensed with. In a modification, the tubes are secured to plates 61, Figs. 17, 19, forming the closure plates of the headers and connected to side-plates 62.
Patent GB-774492-A (GB)
Title: Improvements in or relating to taximeters
Inventor: HAUPT WILHELM
IPC: G07B13/00
Filed: 1954-05-25
Abstract: 774,492. Two-part couplings. KIENZLE APPARATE GES. April 12, 1955 [May 25, 1954], No. 15371/54. Class 38 (1). [Also in Groups XVIII and XIX] A coupling for connecting a taximeter to the vehicle battery comprises a base 1 having three plugs 2, 3, 4 of which plug 2 is earthed, plug 3 supplies the taximeter, and plug 4 the roof sign via the taximeter, plugs 3 and 4 being connected via a spring-mounted fuse 10 with the battery cable 8. The base 1 is provided with a sliding cover 11 kept in position by a spring- pressed button 12.
Patent GB-488628-A (GB)
Title: Improvements in metal bottles or containers and methods of manufacturing the same
Filed: 1937-01-06
Abstract: 488,628. Making cans. CROWN CORK & SEAL CO., Inc. Jan. 6, 1937, No. 15373/38. Convention date, Jan. 11, 1936. Divided out of 488,427. [Classes 83 (ii) and 83 (iv)] [Also in Group XVII] Stamping.-A metal bottle, Fig. 9, is made from a single piece of metal, Fig. 18, a separate bottom being seamed, welded or soldered thereto. The mouth is formed by punching out and is shaped to form a fairly sharp bend for good pouring, a fairly flat topped bead 24 to provide a good sealing area for a crown cork, Fig. 1, and the inturned outer edge of the bead is supported by resting on the metal of the neck. Other shapes of mouth and sealing caps are in Figs. 5, 7 and 8. The base of the body has a rib 79 for positioning a bottom therein, the edge then being seamed in or outwards along with the inserted bottom to secure it therein, Fig. 13, the seam being preferably flush with the wall of the body. The bottom may be dished and may also be secured by welding, soldering, &c. Specification 488,610 is referred to.
Patent GB-1001801-A (GB)
Title: New copolymers of 4-methyl pentene-1 and articles made therefrom
Inventor: CLARKE KEITH JASPE
IPC: C08F210/00
Filed: 1963-04-18
Abstract: A solid transparent copolymer of 4-methyl pentene-1 with a minor proportion of a linear 1-olefine having 5 to 18 carbon atoms is made, are copolymerizing a mixture of the monomers in the presence of a stereospecific catalyst, and processing the copolymer by de-ashing using dry reagents to reduce its ash content to less than 0.1% by weight.  The linear-1 olefine may be octadecene-1, octene-1, decene-1, pentene-1, or hexene-1.  The copolymerization may be effected in bulk or in the presence of a hydrocarbon diluent.  The preferred catalyst is obtained by reacting an aluminium dialkyl chloride with either TiCl4 reacted with Al, or TiCl4 reacted with aluminium sesquichloride. The copolymers may be of the block-type. The copolymer may be purified by the procedures described in Specification 942,297.  The copolymers may be made into articles, e.g. "squeeze bottles" by known moulding techniques.
Patent GB-291108-A (GB)
Title: Improvements in or relating to switch-connections for earthing relays
IPC: H02H3/42
Filed: 1928-05-25
Abstract: 291,108. International General Electric Co., Inc. (Assignees of Allgemeine Elektricitõts-Ges.). May 27, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cut-out arrangements.-In the protection of feeders, generators and transformers against earth faults by means of wattmeter-type relays 10, Fig. 1, the sensitiveness of the relay is increased in heavy faults (which are accompanied by big voltage drops) by means of a change-over switch 15 controlled in accordance with the voltage drop and acting to short-circuit a series resistance 8 in the voltage winding of the relay and to withdraw a. parallel-connected resistance 9 from across the current winding of the relay. The voltage winding 7 of the wattmeter relay is supplied from a winding 14 on an additional fourth leg of a voltage transformer 13, the windings of the other legs being connected across the bus-bars R, S, T. The current winding is supplied by interconnected current transformers 12 in the phases of the feeder 11. The changeover switch has an operating winding 4 connected across the winding 14 and acts on the shortcircuiting contact-arm 16 against the action of the spring 5. The application of the system to the protection of a generator and of a transformer is described also.
Patent GB-804924-A (GB)
Title: Improvements in the heat treatment of valve seats in internal combustion engines
IPC: F01L3/22
Filed: 1956-05-18
Abstract: A method of hardening valve seats of internal combustion engines comprises hardening the operative zone of the valve seats by the high frequency induction method, the operative zone consisting of the contact faces of the valve seatings.  The valve seats may be machined in cylinder heads of pearlitic cast iron containing 2 per cent Si, 1.3 to 1.7 per cent Ni, and 0.4 to 0.7 per cent Mo or may be in the form of an insert having a plurality of seatings or single inserts of Si-Cr steel fixed to the cylinder head by hard soldering, the hardening operation being performed after fixing.  The hardening may be in two stages, the first of short duration to warm the metal and the second of longer duration to dissolve alloying elements.
Patent GB-1346498-A (GB)
Title: Process for the preparation of a permanently magnetizable powder
IPC: C09D5/23
Filed: 1971-05-18
Abstract: 1346498 Coated silica STAMICARBON NV 18 May 1971 [23 May 1970] 15550/71 Heading C1A [Also in Division H1] Silica particles containing magnetizable metal adhered thereto by silicate bonds are made by calcining silica particles loaded with metal oxide. In examples, hydrated oxides of iron and cobalt are precipitated, together or successively, on to dispersed SiO 2  and the dried product is calcined at 900‹ C. for 17-20 hours. Compressed pellets of the calcined material are then reduced in H 2 .
Patent GB-936442-A (GB)
Title: Improvements in or relating to methods of manufacturing ceramic capacitors
IPC: H01B3/00
Filed: 1962-04-24
Abstract: Relates to a method of manufacturing ceramic capacitors having a high capacity per unit volume, in which self-supporting plastic films are manufactured from individual dispersions of ceramic raw materials and of powdery electrode metal in solutions of an organic binder, a plurality of such films being stacked into an assembly and the assembly then being subjected to a thermal treatment, whereby the organic binder is removed and both the ceramic raw materials and the electrode metal are sintered together.  In the method the assembly comprising the stacked films is calendered in the plastic state to a reduced thickness still <PICT:0936442/IV(a)/1> suitable for handling, sections thereof are formed into capacitors and the thermal treatment is carried out subsequently.  A suitable ceramic material dispersion consists of a mixture of BaCO3, TiO2 and MgCO3 sintered in a reducing medium and then dispersed in a solution of polystyrene and dioctylphalate in trichlorethylene.  Such a composition may be used as the dielectric in conjunction with a metal dispersion containing nickel as the electrode metal.  An alternative ceramic mixture consists of BaCO3 and TiO2 together with La2O3 sintered in an oxidizing medium and dispersed in a similar medium to that used before.  Such a composition is suitable for use with dispersions of refractory precious metals such as palladium or platinum.  Plastic films are obtained from these dispersions by evaporating the solvent, and are then stacked together, an appropriate number of dielectric films 1 (Fig. 1) intervening between two metal films 2 and 3.  The stack is then calendered between metal rollers at a temperature at which the metal is sufficiently plastic.  Numbers of these rolled out elements may be stacked together to form complex arrangements, contact layers applied to the sides of the stack connecting together appropriate metal layers, and the whole sintered.  Rolled or flat capacitors may be finally produced.
Patent GB-365466-A (GB)
Title: Improvements in or relating to protective coatings for paper and articles of paper or like material
Filed: 1931-05-27
Abstract: Paper and paper articles such as containers and bottles are treated with an emulsion or latex of rubber, guttapercha, or balata and then with a waxlike substance or substances, either molten, or in solution, suspension or emulsion, in order to form a p  waterproof layer or coating thereon.  Paper, for instance, is treated with a rubber latex having a rubber content of 40 per cent.  The coating formed is partially dried, and the paper treated with a mineral or vegetable wax, either molten, dissolved, or emulsified.  The paper is then heated to a temperature equal to or exceeding the melting point of the wax. The latter dissolves in the rubber layer, forming an elastic, nontacky and impervious coating.  Paper containers may be impregnated right through with wax after the rubber treatment by dipping or other methods.  The insides of containers may be treated with rubber, and molten wax then caused to penetrate from the outside to the inner rubber coating.  The paper or article should preferably be sized or of such porosity that as little as possible of the latex penetrates into the paper; articles may be pre-impregnated with casein, glue or gelatine or gum acacia to minimize the penetration. The invention is applicable to paper in sheet form, in which case the wax may be applied by heated rolls, to any natural or artificial fibrous material, and to metal. Specification 335,271, [Class 95, Paints &c.], is referred to.
Patent GB-377359-A (GB)
Title: Improvements in apparatus for controlling shot-firing in mines
IPC: F42D1/045
Filed: 1931-05-28
Abstract: 377,359. Switches ; electric shotfiring. DAVIS & SON (DERBY), Ltd. J., All Saints Works, Amen Alley, Derby, and DAWSON, C., Tresaith, Flaxholme, Duffield, near Derby. May 28, 1931, No. 15586. [Class 68 (i).] Electrical apparatus and especially electric shot-firing in mines are controlled by a switch comprising a piston moving in a cylinder, the piston being raised by rotational movement of the big end of a connecting-rod which then moves diametrically for return of the piston, the circuit being completed during the return movement. A rotatable spindle 10 has a hollow enlarged end 10b receiving a stationary disc 14 with a diametrical slot 15, and a recess 25 in the end 10b is adapted to receive a projection 22a on the camshaped end 22 of a connecting-rod 23 connected to a piston 24 in a cylinder 21, the piston 24 being pressed by a spring 26 while an air-hole or valve may allow air to be drawn into the cylinder at the top of the stroke. The spindle 10 is rotated, against the resistance of a spring 12, by a handle applied at 10a, the rotation being limited by a stop 10c and recess 13 ; the projection 22a is thereby carried round the disc 14 and the piston lifted, compressing the spring 26. When the projection 22a registers with the slot 15 in the disc 14, the piston is freed and the spring 26 forces the piston downwardly, the projection 22a passing through the slot 15 and the cam end 22 of the connecting rod-depressing a pushbutton 20 to move a spring contact 19 against an adjustable contact 30. A safety switch 27 controlled by a pushbutton 28, may be provided in the circuit. The device may be arranged in the upper part of a case drilled for passage of the button 28 and handle, the cells being arranged in the lower part of the case.
Patent GB-438530-A (GB)
Title: Improvements in and relating to flexible electrical conductors
IPC: H01B7/00
Filed: 1934-05-25
Abstract: 438,530. Conductors. MANSBRIDGE, G. F., Marlowes House, Hemel Hempstead, Hertfordshire, TRUSLER, E., 5, Evelyn Avenue, Kingsbury, and PHOENIX TELEPHONE & ELECTRIC WORKS, Ltd., The Hyde, Hendon, both in London. May 25, 1934, No. 15640. [Class 36] A flexible conductor comprises a number of tinsel threads 1 twisted or stranded together. such composite conductor being lapped with a helix or helices 3 of copper ribbon either tinned or coated with silver.
Patent GB-480570-A (GB)
Title: Fermentation process
IPC: C12P7/06
Filed: 1937-06-07
Abstract: 480,570. Alcoholic fermentation. DEUTSCHES REICH REICHSMONOPOLVERWALTUNG FUR BRANNTWEIN, and KARSCH, W. June 7, 1937, No. 15689. [Class 14 (ii)] In a continuous alcoholic fermentation, the total quantity of yeast at the exit end of the fermentation system is led through a separator or filter and thence to a mixing device forming the first part of the fermentation system, where it is mixed with liquor to be fermented. A chamber in which the fermentation is continued may be interposed between the mixer and the separator. Preferably the fermenting liquid traverses the system only once and on leaving the separator is led to a still. As shown, yeast leaving the separator 13 is led through pipe 5 into a mixer 4 provided with a stirrer 6 and impact devices 7 where it meets molasses from tank 1 and is there fermented. It is then led via an overflow 8 into a container 9, provided with a stirrer 11 and guide plates 10, where fermentation continues and thence to the yeast separator. The separated liquid which, under specified conditions, contains 5À16 per cent of alcohol, runs through pipe 16 to a still.
Patent GB-925064-A (GB)
Title: Improvements in circuit breakers having thermal overload release means
Inventor: NORDEN ALEXANDER ROY
IPC: H01H71/16
Filed: 1961-05-01
Abstract: 925,064. Automatic circuit - breakers. FEDERAL PACIFIC ELECTRIC CO. May 1, 1961, No. 15691/61. Class 38 (5). In a circuit-breaker such as that of Specification 739,620, the bi-metallic element 35 is divided longitudinally into three series-connected lengths 36, 42, 44, the centre length 36 being riveted to the contact-carrying member 22 at one end and the other end latching an actuator 30. The terminal end of the length 44 is connected to a conducting braid 46 which is connected to a terminal of the circuit-breaker. The heat produced by the current in the lengths 42, 44 reduce the heat dissipation from the centre " active " length 36 of the bi-metallic element and permit the use of a relatively heavy bi-metallic element in a low-rated circuit-breaker.
Patent GB-448011-A (GB)
Title: Improved circuit arrangements for telephone or like instruments
IPC: H04M1/74
Filed: 1935-05-31
Abstract: 448,011. Substation circuits. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and JONES, A. F., c/o General Electric Co., Ltd., Stoke, Coventry. May 31, 1935, No. 15849. [Class 40 (iv)] In an anti-sidetone circuit, the transmitter 11, which is in series with one winding 1 of the transformer, is shunted by two circuits, one of relatively high resistance through the second winding 2, and the other comprising a tapped resistance 7, 8 and a condenser 6 with the receiver 9 and the third winding 3 connected across a part of the resistance. The circuits shunted across the transmitter are such as to provide a relatively low impedance path for surge currents due to switchhook operation and other causes.
Patent GB-873375-A (GB)
Title: Nut
IPC: F16B39/284
Filed: 1959-05-08
Abstract: 873,375. Nuts &c. ELASTIC STOP NUT CORPORATION OF AMERICA. May 8, 1959 [June 26, 1958], No. 15853/59. Class 89(1). A nut comprises an internally-screwed tubular body 22 extending from a polygonal, e.g. hexagonal, base 16, there being an axial projection 24 at each corner providing additional wrenching surfaces. Each projection is joined to the body by a web 28, and surfaces 30, 32 on the projections and webs are engageable by a socket wrench for applying the nut in otherwise inaccessible positions. The tip 12 of the body may be distorted to make the nut self-locking.
Patent GB-426452-A (GB)
Title: Process of lasting footwear
IPC: A43D21/12
Filed: 1934-05-28
Abstract: 426,452. Lasting boots and shoes. NORTHERN MACHINE CO., Inc., 144, Moody Street, Waltham, Massachusetts, U.S.A.- (Assignees of Kamborian, J. S.) May 28, 1934, No. 15854. Convention date, July 19, 1933. [Classes 17 (i) and 17 (ii)] A shoe upper is assembled with an insole upon a last and pulled over at the forepart and temporarily secured in the usual way by tacks. The last is then mounted in a bed - lasting machine and after the wipers thereof have been actuated to stretch the upper about the forward part of the last, the marginal portion of the upper is wiped on to the insole from the toe substantially to the shank portion in a single operation. The wipers are then moved outwards but without withdrawing their inner edges beyond the edge of the insole, so that the upper is held thereby securely in lasted position. The edge portion of the wiped-in trimmed upper material is caused to become adhesive and the wipers are again advanced to hold the marginal upper material under pressure until the adhesive has set. A sole is then attached in any usual manner. After the margin of the upper has been made adhesive, the wipers may be momentarily raised and a presser device large enough to cover the wiped-in marginal material is inserted between the wipers and the material, and the wipers are again moved downwardly to apply pressure. This presser device may be heated before introducing it beneath the wipers. The wipers may, as shown, have relatively movable tail portions 12b, 13b, pivoted to the main wipers 12a, 13a at 24 and carrying rollers 26 at their forward ends on arms 25 and which engage the upper when the wipers are moved inwardly, to stretch the upper material adjacent the ball portion of the shoe.
Patent GB-112002-A (GB)
Title: Improvements in Metal Shearing and Punching Machines.
IPC: B21D28/00
Filed: 1917-10-31
Abstract: 112,002. Cameron, H., and Cameron, Ltd., J. Oct. 31, 1917. Punching ; shearing.-In a machine in which the actuating eccentric makes several revolutions for each stroke of the tool, the eccentric reciprocates a slide d which moves the tool-slide a by means of a pawl c engaging with teeth h. A second pawl or pawls k raises the tool-slide, the pawls c, k being mounted on a spindle i controlled by hand. In one modification, the eccentric rocks a lever carrying the pawls. In another modification, the tool-slide is raised by a weight and the lever carries a stepped piece engaging the top of the tool-slide which is provided with ratchet teeth engaging a pawl which prevents the slide rising with the lever. In a further modification, the eccentric-actuated slide reciprocates in a gap in the tool-slide and depresses it by means of a hand-controlled stepped piece.
Patent GB-672153-A (GB)
Title: Improvements relating to yarn winding machines
IPC: B65H65/00
Filed: 1950-06-26
Abstract: 672,153. Winding yarn. ABBOTT MACHINE CO. June 26, 1950 [July 6, 1949] No. 15878/50. Classes 120(ii) and 120(iii) A yarn winding machine for preparing filling-wound bobbins includes means for distributing the yarn on the bobbin in a main wound body comprising nested conical layers, means for winding a plurality of end-finding coils of the same yarn on the bobbin between the main wound body of thread and the tip of the bobbin and means for adhesively securing at least some of the said coils in place upon completion of the main wind of yarn on each bobbin B, the motors 19 of individual winding units are stopped and the yarn traversing guides 23 are moved by rails 43, 44 towards the tips of the bobbins. The motors are then re-energized by contact of brushes with conductor bars 20a and a number of end-finding coils C are wound near the tip of each bobbin. The wound bobbins are now released by the contact of clutch-actuating members 30 with a cam 31 and fall on to a plate 32 upon which they roll under the control of members 35, 36 of each unit. The yarn traverse guides are now' wound towards the base positions of new bobbins B<SP>1</SP> supplied by mechanism 40, while the yarn positioned between the coils C of the traverse guides 23 is picked up by a guide plate 50 and guided towards a cutter 61. After the yarn from supply to'the new bobbin, at donning positions, has been gripped between the chucks 24, 25 of each winding unit, the length of yarn extending between the chuck 24 and the coils C of the doffed bobbin is cut off by cutters 60, 61 and sucked away through a conduit 62, 62a. Liquid adhesive from a container 70 flows through a pipe 71 and is applied by a brush to the end-finding coils C to prevent unwinding of same. The wound bobbins are then suitably collected. Specifications 522,664, 588,718, 604,354, 604,419, 604,420, 604,421, 604,422, 608,219, 608,302, 615,439, 615,440, 615,508, 615,509, 615,510, 615,511 and 666,292, are referred to.