baber/WOPTO huggingface dataset:
Patent GB-1311551-A (GB)
Title: Method for producing endless reinforcements for pneumatic tyres
IPC: B60C9/02
Filed: 1970-04-01
Abstract: 1311551 Pneumatic tyres; cord laying machines DEERINGMILLIKEN RESEARCH CORP 1 April 1970 [2 April 1969] 15482/70 Heading B7C An endless reinforcement strip for a pneumatic tyre comprises continuous cord, Fig. 1, zigzagging from edge to edge, the lengths of said cord between reversals being interleaved with lengths disposed at an opposite angle along at least one line substantially parallel to and intermediate the edges of the strip and the relationship between the parameters of the strip being where C is the circumference of the reinforcement, A is the smaller angle between the cord and the edge of the reinforcement, W is the width of the reinforcement measured perpendicular to the edges, EP1 is the number of cords per inch measured perpendicular to the cord lengths, P is an integer and equal to one plus the total number of interleaving lines parallel to and intermediate the edges of the reinforcement, e.g. 13, Fig. 1 (not shown), M and D are two integers having no common factor and which render an integer with D being less than P, and D and P have no common factor, and GR is the number of repeating cycles of the cord from one edge and back to the same edge for each circumference of the reinforcement. The cord reversals may lie at varying distances from the strip's  centre line. The reinforcement strip may form a breaker or carcase ply, wound upon or applied in flat-band form to a cylindrical or expanded carcase. A cord-winding drum 31, Fig. 4, and a barrel cam 40 are rotated by a motor 35 acting through a gear train 41 including a differential adder 54, and a gear-box 38. A cord guide means 33 is reciprocated across the drum's width by means of cam 40, to lay the cord on the inside or outside of the drum. Several cords may be applied simultaneously. The cord angle relative to the strip's centre line is between 45 and 80 degrees prior to expansion of the cylindrical carcase, and between 5 and 35 degrees after expansion. The cords are of glass fibre, rayon, polyester, nylon, cotton, or metal, and may be covered with plastics or rubber extruded around them immediately before their application. The breaker may be located between rubber shoulder portions of the tyre.
Patent GB-181027-A (GB)
Title: A process for producing artificial masses by means of solidifying colloid material
IPC: C08L89/06
Filed: 1922-06-02
Abstract: 181,027. Butonia Gomb Ús VegyitermÚkek Gyßra RÚszvenytßrasßg, (Assignees of Tobias, F.). June 3, 1921, [Convention date]. Plastic compositions containing albuminous matter &c., cellulose esters &c.-A mixture is made of a solution of a colloid which coagulates by itself or on being heated such as albumen, cellulose xanthogenate &c., and an uncoagulable colloid, and the albumen &c. is coagulated, whereupon a homogeneous mass results containing both colloids, capable of being tooled. Emulsions of resins, waxes, fillings, dyes, &c. may be added. According to an example, to a solution of 10 per cent waste hide in 2 per cent sodium hydrate, is added 30-40 per cent of a 1-2 per cent solution of cellulose xanthogenate, and the mixture is dried, Reference has been directed by the Comptroller to Specifications 10779/06 and 12324/12.
Patent GB-203059-A (GB)
Title: Improvements in and relating to the reduction of organic compounds, particularly of nitro- and azo-derivatives
IPC: C07B31/00
Filed: 1922-06-02
Abstract: 203,059. Murdoch, D. G., and Galbraith, W. L. June 2, 1922. Freely-flowing material mixed in conduits; stationary batch-mixers with rotary stirrers.- Two forms of apparatus are described suitable for use in the reduction of water-insoluble organic compounds by the action of an amalgam of an alkali or like metal in the presence of an aqueous reagent to react with the amalgam, and a stable water miscible solvent for the organic compound. In the form shown in Fig. 1 amalgam from the cathode chamber of an electrolytic cell runs into an overflow tank 4 at the head of a trough 5 having along its bed a series of transverse notched ridges 7 and being provided with a chamber 8 for the circulation of a heating or cooling medium; the separating vessel 6 provided with a U pipe 11 contains in the lower part mercury, and in the upper part the mixture of reducible body, watermiscible solvent, and aqueous reagent, the latter mixture being drawn by the circulating pump 13 and discharged through the preheating coil 16 and the fish-tail pipe 18 on to the surface of the amalgam flowing along the trough 5; the mercury separating in the vessel 6 is returned to the electrolytic cell; the circulation of the mixture is continued until the desired degree of reduction has been attained when the caustic alkali is separated from the solution of reduction products. In the alternative form of apparatus shown in Fig. 2 the mixture of reducible substance, solvent and aqueous reagent is placed in the cylindrical container 24 which has a conical base continuing as the U-pipe 25; within the container are a number of staggered baffles 26 between which rotate blades 27 mounted on a shaft 28, and a heating or cooling coil 33; amalgam from an electrolytic cell is sprayed from a horizontal perforated coil 30 the mercury separating returning to the electrolytic cell by the pipe 25; the agitation and passage of the amalgam are continued until the reduction is complete. Specifications 3090/96 and 200,167 are referred to.
Patent GB-110796-A (GB)
Title: Improvements in Means for Attaching Ignition Wires to Sparking Plugs of Rotary Aeroplane Engines.
IPC: H01T13/04
Filed: 1916-11-02
Abstract: 110,796. Gwynnes, Ltd., and Humphreys, H. Nov. 2, 1916. Drawings to Specification. Cable and wire terminals.-In rotary-cylinder internal-combustion engines, the conducting-wire is connected to the sparking-plug by a helical spring linked at one end to the wire and at the other to a plate having a key-hole slot fitting over the plug terminal.
Patent GB-479181-A (GB)
Title: Improvements in method of processing coffee
IPC: A23N12/08
Filed: 1937-06-05
Abstract: 479,181. Roasting coffee. McCROSSON, J. T. June 5, 1937, No. 15669. [Class 58] [Also in Groups VI and XVII] In a method for processing coffee, the beans are roasted, cleaned, ground, and packeted, in chambers which contain the vapours emanating from the roasted beans, and to which entry of the outside air is prevented. Beans from a hopper 1 are fed by a rotary conveyer 2 into an oven 4, and roasted as they pass along towards a discharge pipe P, by means of a burner 7. Vapours given off by the beans are drawn through a pipe 8 to a condenser 9, wherein the water content is removed, and then pass through a filter 10 into a pump 11. The cleansed vapours are forced up a pipe 12, heated in the furnace 6 and pass back into the oven at a port 12<1>. The beans are cooled while passing through chambers 14, 15 by means of cooling tubes 16. Air-tight gates 17 are provided which are opened alternately to discharge the beans to a lower level.
Patent GB-730028-A (GB)
Title: Improvements in or relating to electronic amplifying circuits
Inventor: PATEMAN JACK EDWARD
IPC: H03F1/50
Filed: 1952-06-20
Abstract: 730,028. Electric analogue calculating systems. ELLIOTT BROS. (LONDON), Ltd. June 22, 1953 [June 20, 1952], No. 15674/52. Class 37. [Also in Group XL (c)] In an amplifier, the input voltage is converted into positive and negative peaks and applied to the grid of a tube so that the positive peaks cause a capacitor in the cathode lead to charge followed by subsequent discharge between pulses, the D.C. level being derived as the output from the capacitor. The input 2, Fig. 3, applied across the terminals 1, Fig. 1, one of which is earthed, is interrupted by moving contact 3 to produce a square wave 11, which is differentiated by capacitor 5 and resistor 6 to give the peaked wave 12. The positive peaks cause the cathode of tube 4 to rise and capacitor 8 to charge, the tube cutting-off immediately after the positive peak. As resistor 7 is returned to a large negative potential, capacitor 8 discharges substantially linearly, curve 13, until tube 4 again conducts and the cathode potential is maintained constant. With linear discharge the D.C. level is proportional to the square of the input voltage and is obtained by means of a low-pass filter 9, having a cut-off frequency less. than half the recurrence frequency. In order to get a more linear discharge, capacitor 8 may be discharged over a constant current pentode, Fig. 2 (not shown), and an isolating diode added between the cathode of tube 4 and the capacitor. Where higher speeds of operation are necessary the contact 3 may be replaced by an electronic switch. If the input voltage is in the form of pulses, the switching arrangement is dispensed with.
Patent GB-1456738-A (GB)
Title: Enzymes on a carrier
IPC: C12N11/00
Filed: 1974-04-09
Abstract: 1456738 Insolubilized enzymes STAMICARBON BV 9 April 1974 [10 April 1973] 15702/74 Heading C3H Water-insoluble enzyme complexes, which comprise one or more enzymes chemically bound to a natural sponge, are prepared. The term "natural sponge" is defined as the horned skeleton of the sponge animal which consists of a network of fibres (an organic substance comprising protein of defined amino acid profile). The enzymes may be coupled directly to the sponge or the latter may be chemically modified in a number of ways, such as by increasing the number of carboxyl groups, or the number of amine groups, prior to enzyme coupling; e.g. the sponge may be reacted with a cyclic dicarboxylic anhydride (succinic acid anhydride is exemplified) or side-chains may be introduced into the sponge (e.g. the sponge is reacted with a cyclic dicarboxylic anhydride, then with a diamine and the product so obtained reacted with a cyclic dicarboxylic anhydride). Examples relate to the formation of complexes of papain, and trypsin bound directly to sponge; complexes of trypsin, papain and α-chymotrypsin bound to sponge modified with succinic acid anhydride; lactase (#-galactosidase) bound via p - aminophenyl - # - D - thiogalactopyraniside to sponge modified with (i) hydrazine hydrate, (ii) succinic acid anhydride, (iii) iminobis-(propylamine) and (iv) succinic acid anhydride in that order; urease bound to sponge modified with glutaldehyde; and urease bound to sponge modified with iminobis-(propylamine). Other enzymes specified for use in the process are acylase, invertase, catalase, α-amylase and penicillin amidase.
Patent GB-681256-A (GB)
Title: Improvements in piston compressors, especially for refrigerating installations
IPC: F04B39/04
Filed: 1949-06-14
Abstract: 681,256. Resilient couplings. COMPAGNIE ELECTRO-MECANIQUE. June 14, 1949 [May 31, 1949], No. 15757/49. Class 80 (ii). [Also in Groups XXVI and XXVIII] A coupling between a shaft 29 of a compressor and a rotor 52 of an electric motor, which permits relative movement of the rotor 52 on starting up comprises a sleeve 47 keyed to the shaft 29 and having an annular recess 48 cf width L and containing a helical spring 49 of width l. The inner end of the spring is secured to the sleeve 47 at 50 and the outer end to the rotor 52 at 51. On starting up the spring 49 unwinds until it bears against the outer periphery of the recess 48. Alternatively the spring may bear initially against the outer periphery and tighten on the inner periphery.
Patent GB-1472131-A (GB)
Title: Alkyl derivatives of prostanoic acids and preparation thereof
IPC: C07F9/40
Filed: 1974-04-10
Abstract: 1472131 Prostaglandins AMERICAN HOME PRODUCTS CORP 10 April 1974 [16 April 1973] 15799/74 Heading C2C [Also in Division C3] Novel compounds (I) in which m is 0, 1 or 2, n is 2 to 5, X and Y together represent oxo or X is OH and Y is H, Z is -(CH 2 ) 3 -, cis-CH=CH-CH 2 - or R<SP>1</SP> is H or C 1-3  alkyl and R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are each H or C 1-3  alkyl provided that at least one is H and at least one is C 1-3  alkyl, are prepared (a) when X and Y together represent oxo, by basic hydrolysis of a compound (VI) in which R<SP>1</SP> is C 1-3  alkyl and R<SP>7</SP> is H, followed, if desired, by converting the resulting acid to a C 1-3  alkyl ester, or (b) when R<SP>1</SP> is C 1-3  alkyl, by treatment of a compound (IV) in which R<SP>7</SP> is H and L is a radical B in which R<SP>6</SP> is a radical capable of protecting a hydroxy group, e.g. trimethylsilyl, to replace R<SP>6</SP> by H, and, if desired, oxidizing the resulting compound (1) in which X is OH and Y is H, to give a compound (1) in which X and Y together represent oxo, or (c) when X and Y together represent oxo, R<SP>1</SP> is C 1-3  alkyl, R<SP>2</SP> is H, R<SP>3</SP> is H or C 1-3  alkyl and R<SP>4</SP> is C 1-3  alkyl, by acidic hydrolysis of a compound (4) in which L is a radical D in which R<SP>1</SP> is C 1-3  alkyl, R<SP>2</SP> and R<SP>7</SP> are H, R<SP>3</SP> is H or C 1-3  alkyl and R<SP>4</SP> is C 1-3  alkyl. A resulting compound (1) in which X and Y together represent oxo may be reduced to the corresponding hydroxy compound, or a resulting ester may be converted to the free acid. Compounds (4) in which L is a radical D are prepared by reacting an aldehyde L-CHO in which L is a radical C with a Wittig reagent of formula treating the resulting ketone of Formula (3) L-CH=CH-COCR<SP>3</SP>R<SP>4</SP>-(CH 2 ) n CH 3 , in which L is a radical C, with ethylene glycol to give a compound (3) in which L is a radical D, and treating this compound with a metal borohydride. Compounds (1) are useful for inducing abortion, synchronization of estrus and regulation of ovulation in animals.
Patent GB-459998-A (GB)
Title: Thermionic valve circuits
IPC: H03K4/86
Filed: 1936-06-05
Abstract: 459,998. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd., 63, Aldwych, London.-(Assignees of MateriÚl Telephonique Soc. Anon.) June 5, 1936, No. 15819. Convention date, June 12, 1935. [Class 40 (v)] Saw-tooth or like oscillations of opposed phase are produced by charging two separate condensers through linear resistances and simultaneously discharging them through separate discharge tubes. As shown in Fig. 1, condensers 3, 4 are slowly charged respectively from sources 7, 8 through resistances 5, 6 and are discharged quickly through vacuum or gas-filled tubes 9, 10. The junction of the condensers 3, 4 is connected to the cathode of one tube and the anode of the other, so that the saw-tooth voltages applied to deflecting plates 1, 2 are in phase opposition. The junction of the condensers may be connected to the anode of the cathode-ray tube, and the cathode-anode circuit thereof may include the sources 8 and 11. The two tubes 9, 10 may be simultaneously rendered conductive by synchronizing - pulses applied through transformers or otherwise to their grids. In another arrangement shown in Fig. 2, a single source charges the condensers 3, 4 through the resistances 5, 6. The deflecting-plates 1, 2 are connected to the condensers 3, 4 through large condensers 14, 15, and the mean voltage of these plates is fixed by resistances 12, 13 connecting them to the anode of the cathoderay tube. Potentiometers may be provided for separate adjustment of the voltages on the deflecting-plates, Fig. 3 (not shown). The discharging-valves 9, 10 may be tripped by applying the synchronizing-pulse to the grid of one of them, and connecting the gridcathode circuit of the other across a resistance in the cathode lead of the first, Fig. 5 (not shown). A complete circuit for line and frame frequency oscillators with voltage supply arrangements for the electrodes of the cathoderay tube is also described, Fig. 6 (not shown). Specification 426,537 is referred to. The following abridgments should be inserted in place in this volume.
Patent GB-515186-A (GB)
Title: Improvements in or relating to the electrodeposition of zinc
IPC: C25D3/24
Filed: 1938-05-26
Abstract: 515,186. Electrodeposition of zinc. DU PONT DE NEMOURS & CO., E. I., WESTBROOK, L. R., and HULL, R. O. May 26, 1938, No. 15820. Addition to 499,791. [Class 41] Zinc is electro deposited from a cyanide-zinc bath containing an oxyheterocyclic addition agent and a protective colloid. The term " oxyheterocyclic addition agent" includes compounds containing a heterocyclic ring composed of carbon and one or more oxygen atoms, excepting any addition agents mentioned in Specification 473,147. The oxyheterocyclic body may be added to the bath in alcohol or acetone solution, or in the case of oxyheterocyclic aldehydes such as piperonal, in the form of its bisulphite addition compound. A metal brightener, such as a soluble compound of molybdenum, chromium, cobalt, manganese, nickel, iron, titanium, rhenium, aluminium or tungsten, may be added to the bath. In examples, zinc is deposited from a cyanide-zinc plating bath on copper sheets with the following combinations of protective colloids and oxyheterocyclic addition agents: (1) gelatin with piperonal, coumarin, paraldol, or dioxan, with and without molybdenum trioxide as brightener; (2) gum arabic with piperonal, coumarin, furfuryl alcohol, or cyclohexene oxide, with'and without molybdenum trioxide ; (3) gum tragacanth with piperonal, coumarin, tetrahydrofurfuryl alcohol, or paraldol, with and without molybdenum trioxide; (4) agar-agar with piperonal, or coumarin, with and without molybdenum trioxide; (5) soluble starch with piperonal, with and without molybdenum trioxide. The results obtained in the examples are compared with those obtained by omitting either the protective colloid or the oxyheterocyclic compound, and some of the deposits are bright-dipped with dilute nitric acid. Further oxyheterocyclic compounds specified are piperonyl alcohol, piperonylic acid, piperine, safrole, acetopiperone, furfuran, pyronine, ethyl or methyl furoate, furfurylamine, , tetrahydrofurfurylamine, dihydroxymethylxanthene, fluorescein, N-morpholine ethanol, N-phenyl or N-butyl morpholine hydrochloride, diphenylene oxide, or glycol formal, coumalic acid, furfuramide. Other metal brighteners are the sulphates of manganese, chromium, cobalt, nickel, or aluminium or potassium ferrocyanide and other protective colloids are russian glue, isinglass, casein in ammonia, egg globulin, ovomucin, glycoprotein, amorphous or crystallized egg albumen, fresh egg white, dextrin, and albumose.
Patent GB-1039913-A (GB)
Title: A device for supplying a stabilised direct current to a load circuit
IPC: G05F3/18
Filed: 1964-04-16
Abstract: 1,039,913. Current stabilizers. MAATSCHAPPIJ VOOR ELECTRISCHE BEDRIJFSAUTOMATISERING ELECTROFACT N.V. April 16, 1964 [April 29,1963], No. 15875/64. Headings G3R and G3X. An arrangement for supplying a stabilized current comprises a D.C. source 10 connected over an emitter resistor 8 and the emitter collector path of a transistor 5 to load terminals 6,7, a voltage divider 3, 4 connected across input terminals 1, 2 for supplying an approximately constant bias to the base of transistor 5, and a further resistor 9 connected between terminal 1 and the emitter of transistor 5. The Specification describes how the resistance value of resistor 9 may be calculated so that this resistor compensates for any slight variations, caused by input voltage variations, in the bias voltage derived from voltage divider 3, 4. The resistor 8 and resistor 3 may be constant current devices such as iron-hydrogen ballast lamps. The device 4 may be a Zener diode, a glow discharge tube, a voltage dependent resistor, an electrolytic voltage-stabilizing cell, or one or more selenium rectifiers arranged in the forward direction.
Patent GB-640755-A (GB)
Title: Improvements relating to electric switch contact mechanisms
Inventor: BOURNE WILLIAM GEORGE
IPC: H01H1/20
Filed: 1948-06-12
Abstract: 640,755. Electromagnetic switches; contacts. ROTAX, Ltd. June 12, 1948, No. 15877. [Class 38(v)] Upward movement of an actuating member g first brings contacts e into enagement with contacts a and then slides the contacts e sideways over the contacts a. In the form shown a pair of contact members c, d pass through apertures in the member g and are pressed apart by a spring t. The members c, d carry pins s, the ends of which enter inclined slots r in a U-shaped member q carried by the member g so that when either member c, d engages fixed contacts through upward or downward movement of the member g, further movement causes the member c or d to move sideways. The member g is fixed by straps n, o to the plunger i of an electromagnet j.
Patent GB-529340-A (GB)
Title: Improvements in plate heat exchangers
IPC: A23L3/20
Filed: 1939-05-30
Abstract: 529,340. Plate heat - exchangers. AKTIEBOLAGET SEPARATOR. May 30, 1939, No. 15884. Convention date, June 4, 1938. [Class 64 (iii)] Plates suspended by hooks from a horizonal support are pressed together between end-plates 8-11 which are connected by screw bolts 15. The front end-plates 10, 11 are hinged, and swing clear of the intermediate plates when it is desired to disassemble the set ; the rear plates 8, 9 are carried by screw spindles 14.
Patent GB-1260412-A (GB)
Title: Improvements in or relating to scraper chain conveyors
Inventor: BOLTON ROBERT BENJAMIN
IPC: B65G19/08
Filed: 1969-03-26
Abstract: 1,260,412. Endless scraper conveyers. R. B. BOLTON. 26 March, 1969 [27 March, 1968], No. 15898/69. Heading B8A. Links of a chain 14 which are pivotally attached to flights 12 of a scraper conveyer are provided with lugs 54 which may be of wearresistant steel, contact between the chain 14 and a protective housing 16 and side walls 17, 19 of a trough 10 thus being avoided. During the conveying run, each flight is maintained transversely to the trough by a trailing portion 13 which bears upon the trough wall 19. Additional guiding of the flights is provided by a longitudinal tongue 58 which engages in adjacent rebates 56 in each lug 54. The lugs also sweep the walls 17, 19 free of extraneous material. At the discharge end of the trough 10, the flights are free to pivot about pins 15 of the lugs 54 and assume a trailing attitude in a return channel 18. The protective housing 16 is removably secured by pins 60. By forming rebates 56 in both sides of the lugs 54, additional guiding by tongues on walls 17, 52 may be provided.
Patent GB-221871-A (GB)
Title: Improvements in or connected with strengthening or reinforcing wood, wood compositions and the like
IPC: B25G1/00
Filed: 1923-06-20
Abstract: 221,871. Findlay, D. M. June 20, 1923. Rods. - Wooden bodies of rod formation, such for example as toolhandles, are reinforced by filling a plastic or fluid metal, alloy or other substance into transverse cavities therein, so as to form transverse bands. An alloy of lead, tin and antimony becoming sufficiently fluid at 400‹ F. is suitable, or an alloy composed of 67 parts of lead, 29.25 parts of tin, 3 parts of antimony, and 0.75 parts of copper may be used. Fig. 3 shows a transverse inlet ring A in a tool handle and Fig. 2 two intersecting cross bars. The cavities may be made use of as initials or other markings.
Patent GB-955489-A (GB)
Title: Therapeutic rectally administrable enzyme composition
IPC: C12N9/76
Filed: 1961-05-03
Abstract: A therapeutic rectally administrable composition comprises an aqueous solution of phenol and chymotrypsin.  Preferably the chymotrypsin is dissolved in 0.5% aqueous phenol solution.  The composition contains 1,000 to 50,000 units of chymotrypsin per c.c.