baber/WOPTO huggingface dataset:
Patent GB-528752-A (GB)
Title: Improvement in insecticides
Filed: 1939-05-03
Abstract: 528,752. Insecticides. GENERAL CHEMICAL CO. May 3, 1939, No. 13177. Convention date, May 4, 1938. [Class 81 (i)'] [Also in Group IV] Insecticidal preparations comprise a compound containing the xanthone structure dispersed in an aqueous medium or mixed with a solid or semisolid diluent. Substances of the class which may be employed include xanthone, 3-bromoxanthone, xanthione, 2-7-dibromo-xanthone, and methylated xanthone. Methylated xanthone may be prepared by condensation of commercial cresotinic acid (a mixture of methylsalicylic acid isomers) with a phenol and pyroys of the resulting phenylcresotinic acid ester. Spreading sticking and other agents e.g. hydrated lime, tar soap, goulac. The preparations are employed as aqueous dispersions.
Patent GB-293524-A (GB)
Title: Improvements in photographic drying cupboards
IPC: G03D15/02
Filed: 1927-05-17
Abstract: 293,524. Fry, Ltd., E. B., and Fry, E. B. May 17,1927. Small chambers. - The cupboard 1, through which hot air may be driven from a heater by a fan both of which are housed in a chamber 2, is provided at one end with parallel rods 4 having hooks 5 for film-suspension clips, and at the other end with guide slots 6 through which pass weighted cords 7 having hooks 8 adapted to be at tached to the clips at the lower ends of the films. The weights on the cords run in guides 9 in a chamber in rear of the heater chamber 2. In a modified form of cupboard, the rods 4 are at the bottom and adjacent to the heater chamber 2, and the slots 6 are at the top, the weighted cords being guided in a chamber in rear of the drying-chamber. In this form, the fan is mounted in a chamber above the drying-chamber.
Patent GB-401309-A (GB)
Title: New coating compositions
IPC: C08G8/20
Filed: 1932-05-09
Abstract: Coating-compositions are prepared by dissolving in a drying or semi-drying oil such as tung oil a condensation product in an acid medium of formaldehyde or other compound containing a reactive methylene group with a binuclear dihydric phenol derived from o-cresol and ketones or aldehydes other than formaldehyde. Suitable phenols are those obtained by the interaction of o-cresol with acetaldehyde, butylaldehyde, benzaldehyde, acetone and cyclohexanone. Thinners such as turpentine or mineral spirits, driers such as the resinates, linoleates or acetates of manganese, lead and cobalt, pigments, resins, and other ingredients, may be added to the compositions.  In examples: (1) the condensation product of a -a -4 : 4<1>-dihydroxy - 3 - 3<1> - dimethyldiphenylcyclohexane and formaldehyde prepared in the presence of methylated spirits and hydrochloric acid is heated with tung oil to obtain a varnish.  (2) a - a  - 4 : 4<1> - dihydroxy - 3 - 3<1> - dimethyldiphenylbutane replaces the corresponding cyclohexane derivative used in example (1) and the condensation product is also soluble in linseed, perilla and soya bean oils.  The condensation product of b  - b <1>-4-4<1>-dihydroxy-3-3<1\h dimethyldiphenylpropane  > and formaldehyde prepared in the presence of methylated spirits and hydrochloric acid is soluble in varnish oils.  The oily residue obtained by treating o-cresol with acetaldehyde in the presence of hydrochloric acid is condensed with formaldehyde in the presence of hydrochloric acid and worked up into a varnish as in example (2). The Provisional Specification also refers separately to the production of the condensation product and its solution in oils and to the condensation in neutral medium.ALSO:A binuclear dihydric phenol derived from o-cresol and ketones such as acetone or cyclohexanone or aldehydes other than formaldehyde such as acetaldehyde, butylaldehyde or benzaldehyde is condensed with formaldehyde or a compound containing a reactive methylene group in an acid medium and the product is dissolved in a drying oil to yield a coating composition.  In examples a -a -4 : 4<1>-dihydroxy-3 : 3<1>-dimethyldiphenylcyclohexane, a  - a  - 4 : 4<1> - dihydroxy-3 : 3<1>-dimethyldiphenylbutane or b -b -4 : 4<1>-dihydroxy - 3 : 3<1>-dimethyldiphenylpropane is condensed with formaldehyde in the presence of methylated spirits and hydrochloric acid and the initial condensation product of o-cresol and acetaldehyde in the presence of hydrochloric acid is condensed with formaldehyde in the presence of hydrochloric acid.  The Provisional Specification also refers separately to the production of the condensation products and their solution in oils and to the use of a neutral medium for condensation.
Patent GB-461664-A (GB)
Title: Improvements in poppet valve gear for internal combustion or other engines
IPC: F01L1/30
Filed: 1936-05-11
Abstract: 461,664. Valve gear. CURTIS, C. G. May 11, 1936, Nos. 13329 and 13330. Convention dates, May 9, 1935 and Jan. 9, 1936. [Class 7 (vi)] A poppet valve is opened and closed by linkage gear connected to a crank shaft 10 and comprising a rod 12 connecting the crank pin 11 to an oscillating arm 14 which is further connected by a rod 27 to intervening mechanism arranged to have a slight movement as the valve closes and a wide movement during the open period of the valve, and also so as to release the valve as it becomes seated. The intervening mechanism shown comprises a bell-crank 25 pivoted at 23 and connected by a link 31 to a second bell-crank 33 engaging a slot in the valve stem with lost motion, the parts being arranged so that the arm 14 and rod 27 are in the dead-centre position when the valve is closed. A spring 39 serves to hold the valve on its seat when it is released by the bell-crank 33. The bell-crank 25 may be replaced by a single arm connected at its end to both of the links 27 and 31. The crank 11 may be replaced by an eccentric.
Patent GB-879849-A (GB)
Title: Modified starch and method of preparation
IPC: C08B31/12
Filed: 1960-04-14
Abstract: An ungelatinized carbamyl ethyl ether of starch is produced by reacting granular starch with an acrylamide in the presence of an alkaline catalyst.  Specified reactants are acrylamide; N, N1-methylene bisacrylamide; N-methylol acrylamide; N, N-diethyl acrylamide; N-(2-pyridyl) acrylamide; N-(diethylamino ethyl) acrylamide; N-(morpholinyl N-propyl acryl-amide; and a mixture of acrylamide and formaldehyde.  The starch may be derived from corn, wheat, tapioca, potato, rice or waxy maize and may be hydrolysed, oxidized or esterified, provided that it retains a substantially granular structure.  The catalyst may be an alkali or alkaline earth metal hydroxide or alkali metal carbonate of which caustic soda, soda ash and calcium hydroxide are preferred.  In examples the reaction was effected in a small quantity of water, or aqueous alcohol or saturated sodium sulphate solution for some hours at air temperature and the product neutralized, washed with alcohol and air dried.  The nitrogen content varies from 0,17%-0,79%.ALSO:N-substituted acrylamides such as N,N-diethyl acrylamide; N-(2-pyridyl) acrylamide; N-(diethylamino ethyl) acrylamide; and N-(morpholinyl N - propyl) acrylamide are obtained by condensing acrylyl chloride with the corresponding amine.
Patent GB-234805-A (GB)
IPC: C10L5/14
Filed: 1925-05-22
Abstract: 234,805. Tormin, R. May 28, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Composition fuel.-To fuel mixtures, e.g. of coal and coke, to be briquetted is added one per cent or more of benzene, toluene, carbon disulphide or the like. The solvent, which is partially recovered in the pressing operation, causes the bitumen content to be distributed throughout the fuel mass. Pitch or other kinds of bitumen may be added in briquetting poor coal.
Patent GB-686032-A (GB)
Title: Improvements in or relating to escapement mechanism
IPC: G04B15/08
Filed: 1950-05-30
Abstract: 686,032. Clocks and watches. FEENEY, J. May 30, 1951 [May 30, 1950], No. 13429/50. Class 139 In an escapement the escape wheel is formed by two toothed wheels the teeth of which are in staggered relationship to cooperate successively with a pallet which oscillates across the two sets of teeth and is impulsed thereby, the said pallet being` mounted at one end of a pivoted lever, the other end of which imparts impulses to the balance. The escape wheel is formed by two integral wheels 10, 11, the teeth of which are in staggered relationship, Fig. 2 (not shown). A pallet 21, 23, 22, Fig. 3, oscillates across the teeth of the wheels and is shaped as shown in Fig. 5 to have impulse faces 21, 22 and a locking face 23. The pallet is mounted on one end of a pivoted lever, the other end of which is forked to co-operate in the usual manner with the impulse pin of the balance (not shown).
Patent GB-437949-A (GB)
Title: Improvements in and relating to the hardening of metal surfaces
IPC: C21D1/08
Filed: 1934-05-03
Abstract: 437,949. Burners &c. LINDE AIR PRODUCTS CO., 30, East 42nd Street, New York, U.S.A. May 3, 1934, No. 13449. Convention date, May 4, 1933. [Class 75 (i)] [See also Group II] A blowpipe burner B, Fig. 2, for heating the surface of metallic articles comprises a head 20 for receiving mixed combustible gases and delivering them to a plurality of removable tips or nozzles 21. When used for heating selected parts of the article some of the nozzles are removed and replaced by plugs 22 as shown in Fig. 3. In another form of burner, Fig. 7, gas distributing heads 30 are adjustably supported on, and mounted in, a slotted block 31 by nuts 35, 36 which engage and hold in position conduits 33. Gas and water cooling conduits 37, 38 pass through the conduits 33 to the head 30 to which gas nozzles 32 are secured. One, two or three heads 30 may be used and they may. be arranged so that the rows of nozzles 32 are in alignment, parallel to one another or perpendicular to each other. Examples of such arrangements are shown in Fig. 10, 12 and 16.
Patent GB-135359-A (GB)
IPC: C01B17/84
Abstract: 135,359. Dawson, H. Royal-. Jan. 4, 1919. Sulphuric acid.-In its production by the lead chamber process, columns of tower-packing material, such as the fillings of Glover towers, are arranged within the lead chambers so that the gases pass through horizontally, and are kept wet with acid or water or both. In the example, the columns B extend across the chamber and reach nearly to the top. They are supplied with acid from the bottom of the chamber by way of tanks G, H, K and covered depressions C in the roof of the chamber connected by channels L and supplied from the tank K. The depressions C are provided with pipes D, the tops of which are luted by covers, as shown in Fig. 3. Water or steam may be supplied by jets F, which may be arranged over the columns if desired. The ends of the chamber are domed or truncated as shown to facilitate the distribution of the gases. A fan M is provided in the outlet.
Patent GB-584514-A (GB)
Title: Improvements relating to refrigerator cabinets
IPC: F25D23/08
Filed: 1944-07-17
Abstract: 584,514. Mouldings. GENERAL MOTORS CORPORATION. July 17, 1944, No. 13587. Convention date, Oct. 29, 1943. [Class 20 (iv)] [Also in Groups XIII and XIV] A refrigerator cabinet 10 has a strip of rubber 51 interposed between the edges of the top and side finish panels 12, 11 to preserve these surfaces from damage when cans are being placed in the cabinet. The strip 51 has a thickened body part 52 and beadings 54, 55 which interfit with flanges 27, 26 of a metallic channel member 25 secured to the frame 16. A depending lip 56 conceals the point of weld of panel 11 to the frame 16 and a central hole 53 increases resiliency. At the corners the strip 51 is slit so that it can be fitted to the contour of the cabinet and a metal corner trim member screwed in place.
Patent GB-891570-A (GB)
Title: Display devices
Inventor: GALE FREDERICK CHARLES
IPC: F21V17/00
Filed: 1960-04-19
Abstract: 891,570. Brackets; stands. METAL SIGN & DISPLAY INDUSTRIES Ltd. Oct. 31, 1960 [April 19, 1959], No. 13734/60. Classes 52(3) and 52(5) [Also in Group XVIII] A bracket or stand for securing a sign A to a shelf comprises a bracket element 1 which is provided with shelf engaging U-shaped limbs 2, 3, 4 and a bent strip 5, 6 to define with the members 2 a clamp for the sign. One limb 5 carries lamp supporting means 7, 8, 9 and the ends of the limbs 5 are provided with rubber or plastic covers.
Patent GB-887338-A (GB)
Title: Anion exchange resins
IPC: B01D15/04
Filed: 1959-04-22
Abstract: A water-insoluble anion-exchange resin comprises a copolymer of from 0,1 to 20% of hexahydro- 1,3,5-triacrylyl-s-triazine and 99,9 to 80% of a monovinyl aromatic compound which is halo-alkylated and aminated to introduce the anion-exchange groups.  The copolymer is prepared, preferably in bead form by suspension polymerization in a non-solvent such as water with agents such as methyl cellulose or polyvinyl alcohol, with catalysts such as benzoyl or acetyl peroxides, t-butyl hydroperoxide, or water-soluble persulphates or a ,a 1-azodiisobutyronitrile, or with a Redox system which contains as reducing agent sulphur dioxide, formamidine or p-toluene sulphinic acids, formaldehyde and sodium sulphoxylate. The haloalkylation may be by reacting with for example, formaldehyde and hydrochloric acid, or chloromethyl or bromomethyl methyl ether with zinc chloride catalyst and the amination may be by reacting with amines such as trimethyl, triethyl and dimethylethanol amines, ethylene diamine and N,N1-tetramethyl ethylenediamine or quaternary derivatives thereof. Examples describe the preparation of pearls with particularly high grain compactness which may be used to split sodium chloride solutions.  Specifications 654,706, 679,850, 700,470 and 779,994 are referred to.
Patent GB-1142184-A (GB)
Title: Improvements in or relating to plugs for making connections to electric supply sockets
IPC: H01R13/70
Filed: 1967-03-23
Abstract: 1,142,184. Two-part couplings. WONG CHOW SAU-FONG. 23 March, 1967, No. 13781/67. Heading H2E. In a three-pin plug the live contact pin 15 is separated from its corresponding terminal 42 (Fig. 3) by a switch mechanism operated by a rocker 18 which projects outwardly through an opening in the cover (Figs. 1, 2 not shown), the switch mechanism comprising a metal frame 28 upon which terminal 42 is mounted and consisting of two flat side pieces 29 joined together by a bridge piece 31 by which the frame is secured to the plug base by screw 32. The bend portion of U-shaped switch arm 34, pivoted in the switch frame, has an extended portion normal to the pivot axis and bearing a contact button 36. This button co-operates with button 27 on fixed Z-shaped contact 26 joined to contact pin 15 by screw 25 which also clamps pin 5 to the plug base. Movement of rocker 18 on pivot 37 moves the switch arm 34 to and fro with a snap action because of coiled compression spring 39. In a modification (Figs. 7, 8 and 9, not shown), there is a fuse between the terminal and switch frame.
Patent GB-514527-A (GB)
Title: Improvements in or relating to the surface-alloying of metal bodies
IPC: C23C24/08
Filed: 1938-05-09
Abstract: 514,527. Surface alloying. KINKEAD, R. E. May 9, 1938, No. 13785. [Class 82 (ii)] A method of surface-alloying a metal body includes melting the surface of the body, adding alloying material to the surface before, during and after melting and maintaining the body at a substantially uniform predetermined elevated temperature throughout the alloying operation. In the form shown slab S covered with alloy 66 and flux 68 is moved uniformly forward by table 16 that is actuated by gears 62, and electrodes 34, each actuated by a cam 41 working against springs 47 move transversely to-andfro across the slab. The slab is maintained at a uniform temperature by thermostatically-controlled burners or by immersion in a lead bath during the alloying, and may be preheated to a temperature above the magnetic range in the case of magnetic materials and to between about 600‹C. and 800‹C. in the case of steel alloys. The to-and-fro movement of the electrodes may, when desired, be faster in parts having residual heat from previous heating so that alloy penetration is uniform. Otherwise alloy penetration may be made non-uniform and parts,. e.g., centre or edges, may have greater alloy depth. Alloying material such as copper or nickel, and flux may be powdered and may be carried in steel pans on the slab or may be in flat sheets. Ferrochrome and nickel may be used to form 18-8 steel and the flux may be a mixture of powdered slag with 30 per cent. of sand and 5-10 per cent. of ferrosilicon. Boundary plates P may be provided so that the slab sides may be completely alloyed. Direct current carbon electrode heads with the slab connected to the positive pole or alternating current atomic hydrogen electrode heads may be used, and alloying material may be fed to the electrode crater.
Patent GB-283401-A (GB)
Title: Improvements relating to the delivery of predetermined quantities of a mass in the form of paste
IPC: A47K5/12
Filed: 1927-05-23
Abstract: 283,401. Wildmoser, J. May 23, 1927. Piston apparatus for discharging receptacles.- A device for delivering equal separated quantities of pasty material particularly soap, consists of a container m, Fig. 1, with a piston c moved by a screw spindle k so as to express the material past a cam-operated valve g in the outlet t. The valve g is fitted on the square-section end of the spindle b, and in a spindle-bearing s, in the lower end of which is fixed a ring h, Fig. 4, with cam-surfaces n, coacting with similar cam-surfaces i on a ring surrounding or forming part of the valve g. As the spindle b is rotated by the handle a, the soap is forced through the flange u of the bearing s, and the valve g, rotating with the spindle, is lifted by the cam surfaces n, i until they reach the position shown in Fig. 4, when the spring k forces the valve g down quickly, expelling a portion of soap through the nozzle o. In the modification shown in Fig. 2, the spindle b has two identical ends. When the piston c has reached the bottom of the container m, the outlet t, with the valve g and bearing s, and the cap r, with the handle a and an indicator l, are interchanged, the container m is refilled, and is then inverted on its pivot x. To prevent the piston from turning in the container m, they are non-circular in section. A fine aperture q in the lower end of the valve g permits the outlet of material which has leaked into the valve
Patent GB-318871-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F01C21/08
Filed: 1928-05-11
Abstract: 318,871. Carter, M., Bean, H., and Campbell, A., (trading as Universal Valve & Chemical Accessories Co.). May 11, 1928. Fixed-abutment type; regulating.-In a rotary vane pump of the type in which the vanes during their working stroke move on surfaces of the casing or of a ported liner ring which are concentric with the rotor, the nett delivery arising from the difference in volume between the streams from the suction and delivery sides, fluid is admitted beneath the vanes to prevent pulsations in the delivery. A variable capacity pump is shown in Fig. 2. At normal deliveries the rotor 7 is concentric with the working faces AB, CD of a ported stator ring 4, the cross-section of the annular working spaces so formed being unequal so that a delivery corresponding to this difference is obtained. Ports 10 permit the entry of fluid to the inner ends of the vanes 8. The delivery is varied by adjusting the rotor axis horizontally by means of a rotatable bush in which the rotor shaft is eccentrically mounted, The rotor may be polygonal with the vanes actuated by flat springs secured to the rotor corners. In the modification shown in Fig. 6 the vanes comprise split pistons 19 with interposed springs 20; they are carried by pins 21 extending between end flanges 7<x> of the rotor whereby fluid may enter the space between the two halves of each piston 19. Adjustment of the delivery is effected by angular adjustment of the ported ring 4 the outer surface of which is eccentric to the centre of the working surfaces AB, CD and so causes this latter centre to move on a horizontal diameter.
Patent GB-1527731-A (GB)
Title: Sewage treatment-flotation apparatus
IPC: B03D1/14
Filed: 1975-04-07
Abstract: 1527731 Sewage flotation treatment IMPERIAL CHEMICAL INDUSTRIES Ltd 24 March 1976 [7 April 1975] 14142/75 Heading C1C A method for solids-liquid separation wherein a solids-liquid sewage mixture is circulated around a circulatory system which comprises at least two substantially vertical ducts communicating with each other at the upper and lower ends so that the mixture flows downwardly in one duct and upwardly in another, a gas containing free oxygen being supplied to, and at least partly dissolved in, the mixture; a portion of the upwardly-flowing mixture containing dissolved gas passes into a flotation chamber (connected to the circulatory system) in which the hydrostatic pressure gradually decreases as the mixture flows upwards and consequently gas is released from solution and forms gas bubbles attached to solid particles present, which carry the solid particles to the top of the liquid; and the solid particles carried to the top of the liquid and the resulting clarified liquid are removed separately from the system. The liquid, carrying biologically-degradable waste, may be sewage or effluents from farms or food factories. An apparatus is also described.
Patent GB-387688-A (GB)
Title: Improvements in or relating to machines for decorticating fibrous materials
IPC: D01B1/22
Filed: 1931-05-13
Abstract: 387,688. Washing- machines. WRIGHT, E., Willowdene, Leighton Avenue, Pinner, Middlesex. May 13, 1931, No. 14145. [Class 138 (ii).] A machine for decorticating fibrous material of the kind in which a slotted plate 12, Figs. 2 and 5, is reciprocated between two slotted plates 10, 11 so as to break the woody portions of fibrous material fed therethrough, is stated to be of use for washing clothes. Each plate 11 is pressed laterally by springs 15 while the plates 12 are reciprocated by eccentrics 20 acting through members 19, 17, Fig. 1. The feed or crushing rollers 24, 24a ; 25, 25a ; 26, 26a are provided with springs 27, while the slots in the plates 10, 11, 12 may be formed with renewable edges 43, Fig. 5.