baber/WOPTO huggingface dataset:
Patent GB-313330-A (GB)
Title: Improvements relating to printing machines
IPC: B41F27/10
Filed: 1928-07-02
Abstract: 313,330. Calico Printers' Association, Ltd., and Gray, J. E. July 2,1928. Printing-surfaces.-Mandrels carrying the printing-rollers in printing-machines are provided with sleeves on their necks in driving connection with the mandrel and having collars to receive the side pressure of the mandrel brasses during endwise adjustment of the mandrel. In one form, Fig. 1, two sleeves a, b provided with thrust collars f, g for the brasses are mounted upon the necks c of the mandrel body e and have driving connection with the mandrel by means of teeth h formed on the sleeves engaging recesses formed in the body e. In another form, Fig. 4, in which the endwise adjustment of the mandrel in both directions is effected from one end only of the mandrel, the sleeve b is provided with two collars g, f, for receiving the pressure of the brasses according to the direction of adjustment. The sleeve is secured to the mandrel by set screws and may have teeth at one end similar to the teeth h, Fig. 1, to engage recesses in the mandrel body.
Patent GB-1504771-A (GB)
Title: Speed control systems
IPC: G05D13/62
Filed: 1975-05-07
Abstract: 1504771 Control of D.C. motors BEI ELECTRONICS Inc 7 May 1975 [15 May 1974] 19169/75 Heading H2J [Also in Division G3] In a speed control system (see Division G3) for a D.C. motor M, the motor is driven by an operational amplifier 350 (Fig. 5) and is included in the amplifier feedback loop. The motor current is thus kept approximately constant at a value dependent upon the motor speed error. In an alternative motor control (Fig, 6) transistors 448U, 458U, 468U or 448D, 458D, 468D are turned on according to the direction of rotation of motor M. The impedances of the appropriate transistors are varied according to any difference between the speed of slave motor M and a master drive, so as to reduce the difference.
Patent GB-864873-A (GB)
Title: Improvements in or relating to the manufacture of materials for use in the production of printed circuits
Inventor: LOWE DENNIS CHARLES
IPC: B32B15/08
Filed: 1958-06-16
Abstract: An adhesive composition used for a laminate (see Group VIII) is a mixture of a thermosetting resin and synthetic rubber.  In the examples the adhesive is a solution in methyl-ethyl-ketone and diacetone alcohol of a mixture of a butadieneacrylonitrile copolymer and a cashew-phenol/aldehyde resin.ALSO:An electrically conducting metal sheet or foil, e.g. of copper, to be laminated to an electrically insulating material (see Group VIII) is treated to produce at least on the surface to be bonded a superficial oxidation to assist the bond, but insufficient to require for the removal of the visible part thereof from the insulating layer, after etching, an extension of the etching time sufficient to cause undercutting of the metal to be retained. The metal may be first cleaned by immersion in a solution of hydrochloric or sulphuric acid and a surface-active agent, and then oxidized by treatment with an oxidizing solution.  In the examples, copper foil was immersed for two minutes at 75 DEG  to 85 DEG C in a solution containing 48 g/l sodium chlorite, 6 g/l sodium hydroxide and an insignificant concentration of sodium chloride. It was then washed and dried and had a coating of 2.2 g. of copper oxide per square metre of foil.  The specification gives ranges of concentration of 4 to 9 g/l for sodium hydroxide and 20 to 100 g/l for sodium chlorite; potassium hydroxide may be used in place of sodium hydroxide.  The thickness of the oxide coating may be from 0.75 to 1.4 g/m2 of surface.
Patent GB-757763-A (GB)
Title: Improved self-locking screw
IPC: F16B39/28
Filed: 1954-06-30
Abstract: 757,763. Locking screws. AMERICAN SCREW CO. June 30, 1954 [July 9, 1953], No. 19237/54. Class 89 (1). [Also in Group XXII] A self-tapping and self-locking screw comprises a tool-engaging head 10 and a tapered shank 12 formed with a coarse-pitch helicalthread 14, the turns of the thread being separated by a flat rootportion 15 which is deformed throughout at least one turn to provide ratchet-like locking teeth 15<SP>1</SP>. The teeth face oppositely to the driving direction of the screw and the faces 16 may be inclined to the screw-axis. In a modification, the shank is not tapered and the thread-crests are cut off towards the tip of the screw, and a flat may be formed to provide a cutting-edge.
Patent GB-741778-A (GB)
Title: An improved combined show and display card
IPC: G09F5/04
Filed: 1953-07-10
Abstract: 741,778. Display cards. RITCHIE, D. J., and RITCHIE, Ltd. D. July 12,1954 [July, 10, 1953] No. 19240/53. Class 3(2) [Also in Group XVII] A combined show and display card comprises a synthetic plastic rod or wire b which is mounted on and relatively spaced from a card a; the ends of the wire passing through eye-holes f formed in said card. One end of the wire is provided with an S- shaped loop c whilst the other end is provided with a U-shaped loop d having an extension e at right angles to the plane thereof. The end d, e of the wire is adapted to be withdrawn from the eye-hole f to permit articles such as shoe laces g to be threaded thereon. If desired, the eye-holes f may be reinforced with eyelets.
Patent GB-808707-A (GB)
Title: Improvements in or relating to activation of aluminium
IPC: B01J37/18
Filed: 1956-06-21
Abstract: Aluminium to be used in the preparation of organic or organometallic compounds is activated by heating in the presence of hydrogen and a hydride of an element from Group Ia, IIa, IIb or IIIa of the Periodic system at a temperature of at least 150 DEG  C. and below the decomposition temperature of said hydride. Specified hydrides include aluminium hydride, boron hydrides such as boroethane and borobutane, lithium hydride, sodium hydride, potassium hydride, calcium hydride, strontium hydride, barium hydride, beryllium hydride, magnesium hydride, and cadmium hydride.  A minimum amount of activator of about 5-10 per cent based on the amount of aluminium may be used.  The aluminium is preferably comminuted by grinding, milling, drilling or other operation.  If desired the heating may be carried out with the aluminium and the hydride slurried in an inert liquid such as pentane, cyclopentane, hexane, cyclohexane, heptane, cycloheptane, octane, nonane, decane or decahydronaphthalene.  The activated aluminium may be isolated and stored in an inert atmosphere such as moisture- and oxygen-free nitrogen or maintained in an inert organic liquid such as a moisture- and oxygen-free hydrocarbon. More conveniently it may be reacted without prior isolation with an olefin and hydrogen to give aluminium alkyls and alkyl aluminium hydrides. It may also be reacted with carbon tetrachloride to yield hexachlorethane.  In an example aluminium chips are activated by heating in heptane with aluminium hydride (some of which decomposes to yield free hydrogen).  After 7 hours heating at 150 DEG  C., the autoclave is cooled, hydrogen and isobutylene added and reaction continued to yield triisobutyl aluminium.  In examples V-VIII inclusive, beryllium hydride is used as the activator, and the products include di-isobutylberyllium as well as tri-isobutylaluminium. Specifications 808,705 and 808,706 are referred to.
Patent GB-314385-A (GB)
Title: Improvements in the annealing of glass plates
IPC: C03B25/08
Filed: 1929-06-24
Abstract: 314,385. Hilgers, E. June 26, 1928, [Convention date]. Drawings to Specification. Charging; charges, conveying.-Relates to the method of making plate or sheet glass in which glass plates are formed intermittently by a rolling-apparatus and are conveyed to and through a leer by means of a roller conveyer. According to the invention, the glass plates, while in the leer. are alternately moved forward a predetermined distance and backward a smaller distance, thereby imparting to the plates a reciprocating movement while causing them to advance gradually along the leer. The reciprocating movement is sufficiently rapid to prevent the glass' from sagging between the rollers, while the resultant forward movement is sufficiently slow to enable the glass to be annealed in a leer of reasonable length.
Patent GB-530773-A (GB)
Title: Machines for making edible ice
IPC: A23G9/10
Filed: 1939-07-03
Abstract: 530,773. Mixing apparatus. DUMMLER, W. July 3, 1939, Nos. 19344 and 19345. Convention dates, July 2, 1938, and March 18, 1939. [Class 86] [Also in Group XIII] A machine for making ice-cream comprises a rotating externally cooled pan 1, a stripper 21 reciprocating vertically on the inside wall of the pan and having spaced blades 22 with a passage between them through which the ice-cream may pass, and a guide vane 27 for directing the icecream back to the wall of the pan. The stripper contacts with the wall of the pan only during its upward movement, and the guide vane is removable and forms a collecting device for the finished product. The pan is fixed to a vertical shaft 4 driven by a motor 7, the shaft being divided at 9 for removal of the pan. A worm 10 on the shaft 4 drives, through a worm-wheel 11 and a crank, a connecting-rod 15 pivoted at 16 to an oscillating arm 17 and to the strippercarrying arm 19. A spring 23 acts on a cam 24 fixed to the arm 19 to force the stripper 21 against the wall of the pan, but during the downward stroke a stop 26 on the connecting-rod raises the stripper from the wall. The vane 27 is carried by a rod 28 rotatable in a bracket 29 and in the position shown in Fig. 6 its curved portion 36 directs the ice-cream towards the wall of the pan. By releasing a pivoted catch the vane can be turned through 180 degrees so that scrapers 39 on it contact with the wall and the ice-cream is collected in the vane which has a bottom 40 with a scraper edge. The bearing of the rod 28 on the bracket 29 is slotted so that the rod and the vane 27 can be removed.
Patent GB-855590-A (GB)
Title: Rust preventive composition and a process of making same
IPC: C23F11/10
Filed: 1957-06-19
Abstract: A composition having lubricating and corrosion preventive properties comprises a trialkanolamine salt of an organic acid and a polyglycol ester of an organic acid, the acid in each case having a molecular weight not less than that of lauric acid.  The organic acids may be saturated or unsaturated fatty acids or rosin acids or mixtures of these.  The polyglycol is preferably polyethylene glycol.  The composition may also contain ammonium and/or alkali metal salts of the organic acids, as well as unreacted acids and/or fats and excess trialkanolamine.  Sulphur, 2-mercaptobenzothiazole or its sodium salt, and organic sulphides (e.g. diethyl sulphide or di-hydroxyethyl sulphide) may also be added.  The composition may be added to water, surface-active agents, oils, waxes, lubricants (especially petroleum lubricants), boring oils and coolants (e.g. glycol or methylated spirits).  In the examples, compositions are described consisting of (1) triethanolamine salts of refined tall oil fatty acids and of woolfat fatty acids and polyglycol ester of refined tall oil fatty acid, (2) triethanolamine salt of beeswax fatty acids, polyglycol ester of abietic acid and potassium salt of abietic acid, and (3) triethanolamine salt of woolfat fatty acids, polyglycol ester of polymerized abietic acids and potassium salt of polymerized abietic acid.  Examples of the preparation of suitable compositions are also given.
Patent GB-193899-A (GB)
Abstract: 193,899. Edmondson, T. J., Edmondson, W. B., Edmondson, G., and Edmondson, A. W., (trading as Edmondson, J. B.). Oct. 6, 1921. Dating railway tickets; (counting-apparatus. - Relates to a railway ticket-dating press of the type an which upper and lower pivoted castings 1a, 1c rock inwards when a ticket is inserted for dating, and consists in the combination therewith of a counter, a punch, means for collecting the punchrings, and a bell, all of which are operated simultaneously with the dating of a ticket. The upper casting 1a is pivoted to the lower casting 1c at 1d and to the casing 1 at 10. and carries the usual dating-apparatus. A counter is operated when the castings rock inwards by a spring-controlled ever 9 engaging a projection 1d on the upper casting. As an additional cleck on the number of tickets sold. the casting 1c carries a punch 11, the upper end 13 of which is engaged by a projection 19 on the upper casting so as to forces the punch into a die 12 against the action of a spring 18 and punch the ticket when it is inserted. The punchings fall down, a shoot 20 and may be collected. A hammer-carrying lever 23 is operated so as to ring a bell 21 each time a tichek is dated, by means of a plunger 20 which is depressed when the castings return to their normal position after the dating of a ticket, and causes, through levers 23, 28 and a plunger 25, the hammer 24 to strike the bell 21. A pivoted piece 30 on the casting 1a, when turned up, engages a fixed part 1e of the casing 1 and prevents the operation of the machine.
Patent GB-1048968-A (GB)
Title: Combustion chamber for a gas turbine engine
Inventor: WILDE GEOFFREY LIGHT
IPC: F23R3/16
Filed: 1964-05-08
Abstract: 1,048,968. Gas turbine combustion chambers. ROLLS-ROYCE Ltd. April 30, 1965 [May 8, 1964], No. 19404/64. Heading F1L. Gas turbine engine combustion equipment comprises outer and inner casings 11, 16 enclosing an annular flame tube 20 having inlet guide vanes 23 mounted in the upstream end thereof to direct air from the engine compressor towards a combustion zone 24. Each guide vane 23 has an internal radially extending fuel duct 25, Fig. 3 (not shown), adjacent its leading edge supplying fuel through drillings (26) into the air flowing therepast. A strut 30 also having fuel supply drillings 32 is mounted intermediate each pair of adjacent guide vanes 23. The guide vanes and struts extend into a dilution air duct 21. Four part-annular vane members 33 extend between adjacent guide vanes 23 to promote mixing of the fuel/air mixture and prevent breakaway of the airstream from the flame tube walls. Hollow turbine nozzle guide vanes 35 are mounted in the downstream portion of the flame tube and direct dilution air from duct 21 into the combustion gases through apertures 37 in the vane walls. In a modification, Fig. 4 (not shown), vane members 33 are replaced by a single member (41) and annular flame stabilizing gutters (42) are provided in the combustion zone 24.
Patent GB-239989-A (GB)
Title: Improvements in means for the treatment of coal and other carbonaceous matter for the obtainment of products therefrom
IPC: C10G1/02
Filed: 1924-08-18
Abstract: 239,989. Dvorkovitz, P. Aug. 18, 1924. Addition to 192,816. Retorts.-In the distillation of coal and other carbonaceous materials according to the parent Specification in which the charge is downwardly distilled by preheated gases, the material is subjected to mechanical agitation or stirring during treatment. The stirring device may consist of a poker or bar c attached to the lower valve b of the hopper c and having projections a<2>, the charge being loosened at each charging operation. In a modification, a rotary helical stirring device may be employed.
Patent GB-833057-A (GB)
Title: Improvements in and relating to alumina abrasive materials
IPC: A61Q11/00
Filed: 1957-06-21
Abstract: An alumina abrasive material, suitable for use in dentifrice compositions, is prepared by heating gibbsite to 900-1050 DEG  C., and maintaining the alumina thus formed within this temperature range for at least an hour.  The alumina may be held at this temperature until there is present not more than 20% gamma-alumina, not more than 10% alpha alumina, and between 20% and 90%, preferably 20%-55%, kappa-type alumina, in the product. All these phases are defined with respect to their X-ray diffraction patterns.  The product may have a median particle size of 6-10m  with 80% of the particles in the range 3-20m  and substantially no particles below 3m .  The gibbsite may be previously dehydrated by heating it to 500-800 DEG  C., the rate of heating to this temperature preferably being below 210 DEG  C. per minute.  In the preferred manner of preparing the abrasive, the gibbsite is maintained at 1000 DEG  C. for not more than 10 hours.ALSO:A dentifrice comprises an alumina abrasive prepared by heating gibbsite to 900 DEG  to 1050 DEG  C. and maintaining the temperature for at least an hour (see Group III).  Preferably at least 80% of the particles should have diameters ranging from 3m  to 20 m . Toothpastes contain a thickener such as natural gums, gum karaya, gum arabic, gum tragacanth, seaweed derivatives such as Irish moss and alginates and water-soluble salts of cellulose ethers, such as sodium carboxymethyl cellulose and sodium carboxymethyl hydroxymethyl cellulose.  Colloidal magnesium aluminium silicate will improve the texture.  A sudsing agent, such as water-soluble alkyl- and alkyl ether sulphates and sulphonates having 8 to 18 carbon atoms in the alkyl group, water-soluble salts of sulphonated monoglycerides of fatty acids having from 10 to 18 carbon atoms, salts of fatty acid amides of taurines, such as sodium-N-methyl-N-polymitoyl tauride, and salts of fatty acid esters of isethionic acid may be added.  A humeclant, such as glycerine, sorbitol or other polyhydric alcohol, and flavouring such as oil of winter-green, oil of peppermint, saccharine dextrose and levulose, may be added.  Tooth powders consist of the abrasive, 0 to 5% of sudsing agent, and flavouring. Other suitable additives to the dentifrice composition include sarcosinates, fluorine-containing compounds, quaternary ammonia compounds, chlorophyll, sodium dehydroacetates, sodium lauryl sulphate, tyrothrycin, penicillin and hexachlorophene.
Patent GB-147699-A (GB)
Title: Improvements in wave telephone systems
IPC: H04B3/00
Filed: 1920-07-08
Abstract: 147,699. Ges. f³r Drahtlose Telegraphie. Jan. 17, 1919, [Convention date]. Electric oscillations in line wires, telephoning by.-The transmitter S and adjacent receiver E are connected by a coupling 5, 6, which neutralizes the effects conveyed through the line couplings 1, 2 and by the direct leakage field between them, so as to prevent damage to the receiver.
Patent GB-1348359-A (GB)
Title: Enzymatic treatment of penicillins
IPC: C12P35/04
Filed: 1972-04-27
Abstract: 1348359 Enzymatic preparation of cepnalosporins and penicillins SNAM PROGETTI SpA 27 April 1972 [28 April 1971] 19726/72 Heading C2A [Also in Division C3] The invention comprises a process for the treatment of a substance which contains a ring structure characteristic of penicillins or cephalosporins to convert it to another substance containing the ring structure, which process comprises contacting a reaction medium containing the substance with a filament in which is distributed in finely divided form at least one enzyme capable of causing the desired conversion, the or each enzyme being encased in the filament in such a manner that the or each enzyme can effect conversion and that it or they are substantially retained in the filament during the contacting. The enzyme or enzymes may be incorporated in a filament formed from a nitrated, esterified or etherified cellulosic polymer, a polyolefine, a polymer or copolymer of acrylonitrile, an acrylate, methacrylate, vinyl ester, vinyl chloride, vinylidene chloride or styrene, a polyamide or polyvinylbutyral. Suitable polymers include ethyl cellulose, poly-γ- methylglutamate and cellulose triacetate. Hydrolysis of natural penicillins may be carried out by this process. Such penicillins include those of Formula I wherein R is alkyl of 1 to 10 carbon atoms, with from 3 to 10 carbon atoms, aralkyl, R<SP>1</SP>OCH 2 - or R<SP>1</SP>SCH 2 -, wherein R<SP>1</SP> is alkyl, alkenyl, phenyl or optionally substituted phenyl. The pH of the reaction medium may be buffered at 8. The filament may contain an acylase derived from bacterial cells such as E. coli, B. megaterium, Aerobacter aerogenes or Alcaligenes faecalis cells. The filament may contain an enzyme derived from Actinomyces or fungal cells, e.g. Aspergillus, Penicillum, Botrytis cinerea, Fusanium, Mucor, Alternaria or Streptomyces cells. Synthesis of some penicillins, e.g. ampicillin, may be effected by the process of the invention. The invention also comprises a filament in which is distributed in finely divided form at least one enzyme capable of causing conversion of a substance containing a ring structure characteristic of penicillins or cephalosporins to another substance containing the ring structure, the enzyme being present in the filament in a manner such that it is retained in the filament, when the latter is contacted by a reaction medium containing the substance and that it is capable of effecting the conversion whilst being so retained.
Patent GB-1433503-A (GB)
Title: Motor vehicle bodies
IPC: B60J10/00
Filed: 1973-04-26
Abstract: 1433503 Sealing strips CHRYSLER UNITED KINGDOM Ltd 22 April 1974 [26 April 1973] 19959/73 Heading E1J A vehicle body carries an inner seal 24 and an outer seal 28, the latter being compressible against the side 11 of the door aperture by a shoulder 31 on a door 25. An L-shaped bracket 19 is secured to the body. Seal 24 is secured by a portion 23 pressed fitted over flanges 17, 20, and seal 28 by a portion 27 pressed fitted on limb 22 of bracket 19. Alternatively the outer seal is secured in a channel in bracket 19 (Figs. 4, 5 not shown) or in a channel secured to or formed in the body (Figs. 6, 7 not shown).
Patent GB-862470-A (GB)
Title: Organosilicon resin coating compositions
IPC: C08G77/14
Filed: 1959-06-11
Abstract: A protective coating composition consists essentially of (1) an essentially OH-free siloxane having per Si atom from 1.1 to 1.7 monovalent hydrocarbon radicals and containing Si-bonded acyloxy radicals of 1 to 3 C atoms in amount of from 1 acyloxy radical per 100 Si atoms to 1 acyloxy radical per 3 Si atoms; and (2) a monohydrocarbotriacyloxysilane, in which the hydrocarbon radical and each acyloxy radical contains less than 4 C atoms.  Siloxane (1), in which the organic radicals may be phenyl, methyl, propyl, butyl, amyl, hexyl, vinyl or allyl or isomers thereof, is best prepared by heating, e.g. at 75 DEG  to 150 DEG C., a siloxane resin containing Sibonded OH and/or OR groups with a carboxylic acid or anhydride or a diorganodiacyloxysilane containing less than 4 C atoms in the acyl radical in an amount sufficient to produce the desired siloxane (1), the reaction preferably being effected in the presence of a solvent, e.g. xylene.  The silane (2) may be added per se or in solution in an inert solvent, e.g. xylene, toluene, benzene, perchloroethylene, chlorobenzene, dibutylether or methylisobutyl ketone.  Pigments, antioxidants and ultra-violet absorbents may also be added.  In a typical example (1) a xylene solution of 2-hydroxy-containing siloxane copolymers, each composed of (C6H5).CH3.SiO, CH3SiO3/2 and C6H5SiO3/2 units but in different molar proportions, was mixed with dimethyldiacetoxy silane and refluxed for 20 minutes.  Aromatic solvent and methyltriacetoxysilane were then added and the resulting solution when applied to an Al panel air-dried to a tack-free coating in 15 minutes and was cured within 4 hours.  Uses: for coating wood, metal, ceramic, glass and plastic surfaces.  Specification 660,235 is referred to.
Patent GB-498123-A (GB)
Title: Piston ring closure for internal combustion engines
IPC: F16J9/14
Filed: 1937-10-11
Abstract: 498,123. Piston-rings. BORRMANN, W., and KEUNE, A. Oct. 11, 1937, No. 20115/38. Divided out of 500,307. [Class 122 (i)] A piston-ring is provided at one end with a projection b engaging a similar recess in the other end, said projection and recess being intersected by an internal annular groove in the ring adapted to engage a rib g on the piston.