baber/WOPTO huggingface dataset:
Patent GB-427494-A (GB)
Title: Improvements in or relating to plastic materials and to methods of production thereof
IPC: C08F20/12
Filed: 1933-10-25
Abstract: Granular or globular polymerization products are manufactured by polymerizing a vinyl ester or a lower alkyl ester of acrylic acid or its homologues, or a mixture thereof, in the presence of an aqueous medium containing a colloid, preferably in solution, and incapable of causing the mixture of ester and aqueous medium to form a substantial amount of stable emulsion, while intermingling the two liquid phases by agitation continued throughout substantially the whole period of the polymerization. The volume of the aqueous solution may be about twice the volume of the unsaturated compound, and the concentration of the colloid therein 1--2 per cent.  Suitable colloids are carbohydrates or their derivatives or derivatives of amino acids, e.g. certain kinds of soluble starch, gum tragacanth, gum acacia, gum tragon, water-soluble glycol cellulose, sodium alginate, agar-agar, glue and gelatine, and also, in very dilute alkaline solution, glycol celluloses insoluble in water but soluble in dilute sodium hydroxide. The polymerization may be affected by heating with a polymerization catalyst or by exposure to ultra-violet light. Plasticized, dyed, tinted or filled polymers may be obtained by making suitable additions before polymerization.  In examples: (1) methyl methacrylate is heated with benzoyl peroxide while stirring with an aqueous solution of glycol cellulose; (2) methyl methacrylate containing dibutyl phthalate is heated with benzoyl peroxide while agitating with an aqueous solution of gum acacia; the product may be employed in the production of moulded articles; (3) ethyl methacrylate is polymerized as in (1); (4) methyl methacrylate containing dibutyl phthalate and Spirit Red III is polymerized as in (1), producing a red powder which may be injection moulded; (5) methyl methacrylate is heated with benzoyl peroxide while stirring with an aqueous solution of soluble starch; (6) the soluble starch in (5) is replaced by gelatine; (7) vinyl acetate is heated with benzoyl peroxide while stirring with glycol cellulose solution.
Patent GB-520151-A (GB)
Title: Improvements in internally expanding brakes
IPC: F16D51/30
Filed: 1938-10-13
Abstract: 520,151. Internal-expanding brakes. GIRLING, A. H.' G. Oct. 13, 1938, Nos. 29622/38 and 5994/39. [Class 103 (i)] In internal-expanding brakes of the kind in which a shoe is supported on an actuating member or lever in such a manner as to permit limited circumferential movement of the shoe to give a self-energizing action, the shoe is supported on the actuating member either by rockable members having a rolling contact with surfaces on the shoe and member or by struts pivoted to the actuating member and having rolling contact with the shoe. Shoes 12 of T- section are carried each by a lever 9 of L-section, the levers engaging a stationary adjusting device 11 at one end and an expander 10 at the other. Rockers 15 disposed between the webs of each lever and shoe bear on the shoe flange and on a piece 14 secured to the lever so that when the levers are actuated to apply the shoes to the drum, the shoes move circumferentially relatively to the levers and according to the direction of drum rotation, abut on one or other of the stops 9a, 23 which are provided on the levers and anchor plate respectively. Locating pins 16 with coned ends and distance pieces 18 pass through the webs of the shoes and levers and the rockers, slots or openings in the levers and rockers being provided to allow the necessary relative movements of the parts. A wire spring 21 engaging a pin 22 on the shoe and the pins 16 holds the shoes and levers together and the rockers are returned by springs attached to the pins and to the rockers. The levers are returned by springs 20. In another construction in which one shoe is directly applied by the expander 10, the lever which carries the other shoe with freedom for circumferential movement, comprises a pair of channel-section members between which the web of this shoe is disposed and radial struts are pivoted at one end to the lever and have rolling contact with the flange of the shoe at the other end. A pin passing through the shoe web and the two parts of the lever has spring-urged conical washers which hold the shoe engaged with the curved end of the struts and prevent radial movement of the shoe relatively to the lever. The struts pass through slots in the lever and are held by springs against one end of the slots.
Patent GB-860144-A (GB)
Title: Pressure sensitive adhesive webs
Inventor: AUBREY DEREK WILFRED
IPC: C09J7/24
Filed: 1958-09-17
Abstract: Flexible resinous film backings having a coating of pressure-sensitive adhesive comprise an acrylonitrile copolymer and a stiffening resin, e.g. polyvinyl acetal, polyvinyl butyral, polyvinyl chloride or polymethylmethacrylate.  The acrylonitrile copolymer may be a cured nitrile rubber or a cured carboxyl-modified nitrile rubber; the backing may contain uncured acrylonitrile copolymer and a curing agent therefor, e.g. an epoxy resin, an alkaline earth oxide or hydroxide, a polyamine or sulphur, with, if desired, an accelerator for the curing.  Other resins, exemplified by oil-soluble phenolic resin, may be incorporated for strengthening the backing. Fibrous reinforcement may be incorporated in the backing.  According to an example: a composition of 100 parts of a carboxylic butadiene-acrylonitrile copolymer, 20 parts of a low m.w. epichlorhydrin bis-phenol-A condensate of epoxide equivalent 0.52, 2 parts of tris-(dimethylaminomethyl) phenol or para toluene sulphonic acid, 50 parts of a para tertiary butyl phenolformaldehyde condensate, 50 parts of polyvinyl acetal and 2 parts of the antioxidant phenyl betanaphthylamine is dissolved in 400 parts of acetone, the solution is coated on a re-usable carrier and dried, over this coating is applied a composition of 100 parts of natural rubber, 40 parts of zinc oxide, 80 parts of a terpene resin tackyfier, 30 parts of para tertiary butyl phenolformaldehyde condensate, 10 parts of lanoline, 4 parts of thiuram disulphide and 1 part of 2,5-ditertiary amyl hydroquinone, and the assembly is, after curing by heating for 2 minutes at 180 DEG  C., stripped from the carrier.
Patent GB-737101-A (GB)
Title: Improvements in or relating to dry meal feeding troughs
IPC: A01K5/02
Filed: 1952-11-25
Abstract: 737,101. Feeding-appliances for animals. WILMOT & CO., Ltd., S. M., and WILMOT, A. M. Nov. 24, 1953 [Nov. 25, 1952], No. 29805/52. Class 5 (2). A dry meal feeding-trough for pigs of the kind having a rotatable hopper 2 which is agitated by impact of the pig's head on members 16 in the trough 10 to allow meal to fall through apertures 7, 8 is characterized in that means external to the feeding device are provided for varying the effective size of the apertures. As shown the apertures 7, 8 are provided in a moving and fixed plate 5, 6 respectively, the plate 5 being moved relatively to the plate 6 to bring the holes 7, 8 into or out of register by means of a cranked arm 18 which is moved by means of a bolt 23 operated by a hand-knob. The free end of the arm 18 terminates in a pointer 20 which works over a scale 21 fixed to a casing 1 which surrounds the hopper 2. A cone 3 is mounted at the base of the hopper 2.
Patent GB-721282-A (GB)
Title: An improved holder for irons and other articles
Inventor: PARTRIDGE WILLIAM CHARLES
IPC: D06F79/02
Filed: 1951-12-20
Abstract: 721,282. Stands for hand-irons. PARTRIDGE, H. M. March 20, 1953 [Dec. 20, 1951], No. 29828/51. Class 138 (2). [Also in Groups XIV and XXV] A holder for a hand-iron or other article comprises an articulated framework comprising a base 14, two side members 17 and two top members 18 joined together at their ends, the framework being attached at or near its upper end to a suitable support 10, the base 14 being provided with a seat on which the end of the iron may rest, and the side members 17 being provided with upwardly and inwardly inclined grippers 19 adapted to contact the iron above its broadest part, the arrangement being such that the weight of the iron resting on the seat presses the grippers against the sides of the iron to hold it, whilst to remove the iron it is merely necessary to lift the iron so as to take its weight off the seat and then to remove it by a downward and forward movement to enable the iron to clear the seat. In the example shown the base 14 is formed of two parts pivoted together at 15 and the members 18 are pivoted to the support 10 at 13. The parts 14 may be bent as at 16 to form a cord holder. The support 10 has bent portions 12 which may be screwed to a wall. In a modification (not shown) the framework comprises five strips articulated at the corners, the base for supporting the iron being in one piece.
Patent GB-728774-A (GB)
Title: Improvements in ambient-temperature compensated device for measuring the intensity of radiant energy
IPC: G01J5/20
Filed: 1952-11-25
Abstract: 728,774. Electric bolometers. LEEDS & NORTHRUP CO. Nov. 25, 1952 [May 29, 1952], No. 29841/52. Class 40 (3). The structure of an electrical bolometer is formed so that the thermal conductivities of the heat paths compensate for changes in the output of the heat-sensitive element with changes in ambient temperature. As shown, the temperature of an object S, Fig. 1, is determined by focusing radiation from a limited area on a diaphragm 14 by reflection from a concave mirror 12, as checked via an eyepiece 15, and refocusing the part of the image that passes through an aperture 14a on to a target 25 by further reflection from a second concave mirror 13. The target comprises a bifilar temperaturesensitive resistance winding 70, Fig. 4, cemented on to a base 70a and connected to diametric strips 71, 72 on a mounting ring 20, fixed to the housing 21 by three metallic legs 20a, 20b, 20c. The base 70a is also connected to the ring 20 by a wire 73 acting as a shunt heat flow path. The resistance winding 70 is connected in a bridge circuit comprising two equal ratio arms 75, 76 and a resistance winding 74 having the same resistance as the winding 70, and in heat contact with the ring 20. Bridge balance is indicated by zero current in detector D, and unbalance is measured by balancing the output voltage with a voltage from a tapped potentiometer 88, whose slider 88a is attached to a recording pen and chart 91, the ratio of the currents from the bridge supply 82 and the balancing supply 86 being maintained constant. The bridge does not, however, make allowance for variations in radiation and conduction losses from the target area with changes in ambient temperature, and the heat conduction paths are designed to compensate for such variations. A mathematical analysis shows how the dimensions of the thermal shunt wire 73 may be calculated to provide this compensation, which may alternatively be provided by proper dimensioning of the copper leads 71, 72. Specification 692,116 is referred to.
Patent GB-427799-A (GB)
Title: Improvements in or relating to telephone booths
IPC: E04H1/14
Filed: 1933-10-27
Abstract: 427,799. Door fastenings. SHERRON, P. H., 84, Kendrick Road, Jamaica, Long Island, New York, U.S.A. Oct. 27, 1933, No. 29929. Convention date, Nov. 7, 1932. Drawings to Specification. [Class 441 [See also Group X] The horizontally sliding door of a telephone booth is held in its closed position by the engagement of a spring detent which is secured to a fixed member above the door opening and is adapted to snap into engagement with a recess in the upper edge of the door. (See Fig. 6 of the Specification as open to inspection under Sect. 91).
Patent GB-1525713-A (GB)
Title: Flowmeter checking method and installation
IPC: G01F25/00
Filed: 1976-06-30
Abstract: 1525713 Destroying foam MILK MARKETING BOARD 30 June 1976 [16 July 1975] 29930/75 Heading B1M [Also in Divisions F2 and Gl] A device to prevent froth on the top of milk in a measuring tank 12 pneumatically triggering detector probes (not shown) in sockets 16 comprises a steel mesh screen 45 supported by a disc 44 and rod 43 so that its upper edge is a tight fit in the neck 38 below the probes and its lower end projects into the tank 12.
Patent GB-629471-A (GB)
Title: Improvements in or relating to the manufacture of a new 2-tertiaryamino pyrimidine
Filed: 1946-10-07
Abstract: 2-(N-p-Methoxybenzyl-N-b -dimethylaminoethyl)-aminopyrimidine is manufactured by reacting the sodium derivative of 2-(N-p-methoxybenzyl) - aminopyrimidine with b  - dimethylaminoethyl chloride, or the sodium derivative of 2 - (N - b  - dimethylaminoethyl) - aminopyrimidine with p - methoxybenzyl chloride, preferably in an inert hydrocarbon solvent.  The product is therapeutically useful as an anti-histaminic agent, preferably in the form of its monohydrochloride, which is prepared by treating the base with concentrated hydrochloric acid in the presence of acetone.  In an example, 2-(N-p-methoxybenzyl)-amino-pyrimidine is refluxed with sodamide in toluene, and the resulting mixture containing the sodium derivative of the amine is refluxed with b -dimethylaminoethyl chloride.  Specification 606,181 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the manufacture of other compounds of the general formula <FORM:0629471/IV (b)/1> wherein the pyrimidine ring or the benzene ring, or both, may contain one or more lower alkyl, lower alkoxy or nitro groups as substituents, and wherein R1 and R2 are identical or different lower alkyl radicals (containing up to 6 carbon atoms). In additional examples, b -dimethylaminoethyl chloride is reacted with the sodium derivatives of 2-benzylaminopyrimidine and its 4-methyl and 4 : 6-dimethyl derivatives, and the first product is converted into its hydrochloride.  This subject-matter does not appear in the Specification as accepted.
Patent GB-627591-A (GB)
Title: Improvements in or relating to a thermometer holder
IPC: G01K1/14
Filed: 1946-10-08
Abstract: 627,591. Pressure gauges. CHERRYBURRELL CORPORATION. Oct. 8, 1946, No. 30030. Convention date, Oct. 8, 1945. [Class 106 (ii)] [Also in Group XX] A housing for the insertion of pressure instru. ments or thermometers into a pipe-line comprises a hollow cross-shaped housing having laterally offset intercommunicating passages. Preferably pairs of passages extend lengthwise through aligned portions of branches of the cross-shaped housing, such pairs of passages being laterally offset in relation to one another. As shown in Fig. 4, the housing 1 has two pairs of aligned branches 2, 3 and 4, 5, the branches 4, 5 being in a plane lower than branches 2, 3 and one branch of each pair is equipped with the pressure instrument or the like extending through the common central zone into the passage formed by the other branch of the pair. Branches 2, 5 are connected to a pipe system by conventional means. The instrument stems 20, 21 each carry a ferrule 19 having on its inner surface an outwardly-bevelled shoulder 22 co-operating with an inwardly-bevelled shoulder 13 on the branches 3, 4, these branches being sealed and the thermometers secured in position by units 14 having inwardly-extending flanges 18.
Patent GB-996105-A (GB)
Title: Improvements in or relating to the heat treatment of steel alloys
Inventor: CRESWICK WILLIAM ERIC
IPC: C22C38/32
Filed: 1963-07-29
Abstract: A steel alloy of composition: - .C.0.02 -0.25%, .Mn.0.01 -2%, .Si.0.01 -1%, .Cr.2.5 -6%, .Mo.0.2 -0.7%, .B.0.001-0.01%, optionally Ni and/or Cu each trace-1%, one or more deoxidizers Al, Ti, Zr each trace-0.15%, V 0-0.2%, and balance Fe apart from S and P, each preferably not more than 0.06%, and other impurities, is tempered by heating it to 1000-1350  DEG F. and air cooling.  Some Mo over 0.2% may be replaced by W.  Before tempering, the alloy may be normalized by heating it to 1600-1900  DEG F. and air cooling.  Water or oil quenched may be used.
Patent GB-282720-A (GB)
Title: Improvements in or relating to furnaces
IPC: F28D17/02
Filed: 1927-11-09
Abstract: 282,720. Carborundum Co., Ltd., (Assignees of Hawke, C. E.). Dec. 27, 1926, [Convention date]. Liquid, gaseous, and pulverulent fuel furnaces. -Heat radiating combustion chambers or flues of refractory material such as silicon carbide for liquid, gaseous or pulverulent fuel are cooled at the bottom by an air duct through which air passes to assist the combustion of the fuel. As shown in Fig. 1. the radiating combustion chamber 4 is arranged below a boiler 2 and above an air duct 8 from which air controlled by a damper 11 is supplied to the burner 10. The gases are deflected into the fire-box by a rear wall 12. In a modification the burner is located outside the furnace and is enclosed by a casing through which air from the flue 8 passes to the burner. Fig. 4 shows a blower 15 for withdrawing the air from the duct 14a and delivering it to the combustion chamber 14. The deflecting tile 18. Fig. 5, at the rear of the combustion chamber 17 may be cooled by air passing through a flue 19 before entering the duct 20. The combustion flue may be inclined downwardly towards the rear or may be provided at the bottom with holes 29 communicating with the air duct 27<a>, as shown in Fig. 7.
Patent GB-448319-A (GB)
Title: Improvements in electric water heaters
IPC: F24H1/10
Filed: 1935-11-01
Abstract: 448,319. Supply and delivery arrangements for hot-water boilers. TIPPING, W. F., 13, Valley Drive, Kingsbury, London. Nov. 1, 1935, No. 30254. [Glass 64 (i)] [See also Groups XI and XXIX] In an electric water-heater comprising a water chamber 1 containing an electric heater 2 and an open topped delivery pipe 9, a tube 14a fits in pipe 9 and means are provided for rotating the tube 14a so that apertures 16 and 17 in the pipe 9 and tube 14a are brought into or out registration as the water supply is turned on or off. Dripping from the pipe 9, when the inlet 6 is turned off is thus prevented. The tube 14a may be rotated by a handle 20a and the inlet valve 6 may be operated by a plunger 20 pressed against a cam surface 18a formed on the tube 14a. The handle 20a may be omitted and the tube 14a rotated by twisting the water delivery spout 25. A pressure reducing valve may be incorporated in the inlet pipe. The control for the switch of the electric heating element may be interconnected with the control for the water supply. The heating element is provided with a number of fins 8.
Patent GB-722332-A (GB)
Title: Improvements in or relating to the inhibition of the tarnishing of metals by detergent compositions
Inventor: KENDALL JOHN DAVID
IPC: C11D3/34
Filed: 1951-12-28
Abstract: To reduce the tendency of detergent compositions to discolour non-ferrous metals such as zinc, copper, nickel or their alloys, there is included in the compositions a small proportion of 5-mercapto-1, 2, 3, 4-tetrazole or a derivative thereof substituted in the 1-position with an alkyl, aralkyl or aryl group which, in the case of an aryl group, may be further substituted, e.g. by halogen atoms or amino, substituted amino or alkoxy groups.  The preferred tetrazole derivatives are 1-(a -naphthyl)-5-mercapto-, 1-phenyl-5-mercapto-, 1-(o-tolyl)-5-mercapto-, 1-(p-bromophenyl)-5-mercapto- and 1-diphenyl-5-mercapto-1, 2, 3, 4-tetrazole, but others are also specified.  The detergent compositions may have a basis of phosphates, metaphosphates, pyrophosphates or polyphosphates or of soap, or may contain a sulphated or sulphonated detergent, a number of which are specified; such detergents may be used in the form of their salts with alkali metals, e.g. sodium or potassium, or with ammonia or amines, e.g. triethanolamine or cyclohexylamine.  Alternatively, the compositions may contain cationic or non-ionic detergents.  An example is given in which a tetrazole derivative as defined above is added to an aqueous detergent solution containing a secondary alkyl sulphate detergent, sodium hexametaphosphate and sodium pyrophosphate. Specification 567,353, [Group IV], is referred to.
Patent GB-676410-A (GB)
Title: Method of heating and forging metal bars, and an eddy current furnace for heating the bars
IPC: B21J17/02
Filed: 1950-12-14
Abstract: 676,410. Induction heating. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Dec. 14, 1950 [Dec. 21, 1949], No. 30501/50. Drawings to Specification. Class 39(iii) A method of heating and forging metal bars consists in heating the end of the bar to a temperature considerably below forging temperature in an eddy current furnace, then shifting the bar therein to heat its end to forging temperature in one or more steps and an adjacent part to a temperature considerably below forging temperature, then cutting off the bar end and heating the said adjacent part to forging temperature. In one embodiment the total bar length is made twice the forged portion length and initially one half of the bar is heated to below forging temperature. The complete bar is then inserted into the furnace and the said half brought to forging temperature. This half is then forged and cut off leaving the remaining half to be further heated. A furnace may include a number of grooves for the reception of a series of bars and means for their automatic rejection, the number of grooves being dependent upon the relation between total heating time and the number of heating steps. Sequences of heating and forging operations with bars having lengths either two or three times the length of each forged part are described.
Patent GB-1191003-A (GB)
Title: Pulse Rate Meter for Registering the Rate of Revolution of an Internal Combustion Engine in a Motor Vehicle
Inventor: MINCUZZI ANTONIO
IPC: G01P3/48
Filed: 1967-07-03
Abstract: 1,191,003. Frequency discriminators. FRATELLI BORLETTI S.p.A. 3 July, 1967 [2 July, 1966], No. 30587/67. Heading H3A. [Also in Divisions E2 and G1] In a pulse rate meter (see Division G1) comprising the combination of a printed circuit board (Fig. 9, not shown) with a galvanometer to which it is coupled by a bayonet joint (see Division E2), the circuitry is as shown in Fig. 10. Input pulses applied to the terminal contact of resistor R2 switch the monostable multivibrator constituted by transistors Tr1, Tr2 from its stable (Trl conducting) to its unstable (Tr2 conducting) state. This applies a current pulse of predetermined amplitude and duration to the galvanometer G, the circuit returning to its stable state after a time dependent on the values of C3 and R4. The galvanometer, by registering the average currrent, thus deflects to a value representative of the rate of arrival of input pulses. Temperature compensation is provided by the resistors R7 and NTC.
Patent GB-1271531-A (GB)
Title: Plant for continuously casting oxygen-free copper ingots
IPC: B22D11/128
Filed: 1969-06-17
Abstract: 1,271,531. Roller conveyers. SPETSIALNOE KONSTRUKTORSKOE BJURO TYAZHELYKH TSVETNYKH METALLOV, and BALKHASHSKY ORDENA LENINA GORNO - METALLURGICHESKY KOMBINAT IMENI 50-LETIA OKTYABRSKOI REVOLJUTSII. 17 June, 1969. [17 June, 1968 (2)], No. 30631/69. Heading B8A. [Also in Division B3] An oxygen-free cast Cu strand is withdrawn from a continuous casting mould by means (such as rolls) of which the surfaces for contacting the strand are of a material 9 having a modulus of elasticity less than 10<SP>3</SP> kg/mm.<SP>2</SP> (about 14 x 10<SP>6</SP> Ibs/inch<SP>2</SP>), i.e. less than that of the cast Cu. The material 9 is of " Textolite " (Trade Mark), a resin-dipped fabric laminate said to have a modulus of 10 kg/mm.<SP>2</SP> or less. The " Textolite " 9 is on a roll and in the form of two rings secured between an axially movable disc 8 and a flange 7-of a hub 6 on which the disc 8 is splined. Opposed rolls may be spring- urged towards each other so that the pressure on the casting does not exceed. 3 kg/mm.<SP>2</SP>