baber/WOPTO huggingface dataset:
Patent GB-773991-A (GB)
Title: Improvements in and relating to the production of polymeric materials from bifunctional polyisocyanates and polyesters, polyesteramides and polyethers
Inventor: VINCENT MERVYN FREDERICK
IPC: C08G18/10
Filed: 1954-05-07
Abstract: Polyesters, polyesteramides and polyethers are reacted with an excess of polyisocyanates in the presence of stabilisers which are tertiary alcohols, secondary aromatic amines, mercaptans, monohydric phenols, imides or compounds containing enolisable hydrogen.  The polyester &c. should have a molecular weight greater than 1000 and not more than 0.5 mol. of stabiliser should be present per mol. of polyisocyanate.  As polyisocyanates diisocyanates may be used or compounds containing more than two isocyanate groups provided that they react in a predominantly bifunctional manner.  The products, which may be cellular or solid, may be cured by heating in the presence of a basic catalyst or a polyfunctional compound reactive with isocyanate groups, e.g. water, and compounds containing a plurality of hydroxyl, amino and/or carboxyl groups.  Such water may be present, fortuitously taken up from the air, or acquired by steam treatment.  Some of the stabilizers form adducts with the polyisocyanate which dissociate at the higher temperatures at which the cure takes place.  The stabilizer enables the uncured polymer to be stored for long periods of time, preferably out of contact with air.  The polyester &c.-polyisocyanate reaction may be retarded by the presence of acidic substances.  The curing reaction is accelerated by the use, as stabilizer, of succinimide or 2-mercaptobenzothiazole.  The stabilized materials are in general soluble and may be used in varnishes as well as for moulding. For extrusion some cross-linking may be present.  In examples: (1) 3 parts succinimide were added at 130 DEG  C. to 100 parts polyethylene adipate of molecular weight 1700 and 15.4 parts naphthalene diisocyanate added and stirred for 15 minutes.  The mixture was cast as a sheet and stored for two weeks, retaining its solubility in chloroform, and was then cross-linked by heating for 10 minutes at 150 DEG  C.  A similar material but without succinimide became insoluble after 6 days and could not then be moulded.  (2) Similar to (1) but with the addition of cobaltous chloride hexahydrate to provide water for cross-linking.  (3) 2.4 parts diphenylamine and 14.4 parts 1.5 naphthalene diisocyanate were heated to 140 DEG  C. and added at 130 DEG  C. to 100 parts dry polyethylene adipate of molecular weight 1800, the mix being then cast and heated at 100 DEG C. for 16 hours.  The product was soluble and could be moulded after storing for 10 days by pressing for 1 hour at 160 DEG  followed by baking at 150 DEG  C. for 7 hours.  (4) Similar to (1) but using mercaptobenzthiazole instead of succinimide.  (5) Similar to (1) but using tertiary amyl alcohol. (6) Similar to (1) but using phenol. (7) Similar to (1) but using acetylacetone.
Patent GB-133883-A (GB)
IPC: C25B9/19
Abstract: 133,883. Gerber, V. Feb. 20, 1919. Non-metallic substances, obtaining; electrodes, moving; treating surfaces.-Anions are conveyed from one cell to an adjacent one by a moving electrode which temporarily forms an insoluble compound with the ions. As shown, bipolar electrodes consisting of rotating cylinders c, c<1> are situated immediately above partitions b in a tank a of non-conducting material. A carbon anode f and iron cathode e may be placed in the end compartments. The cylinders c, c<1> may be made of or coated with metal, for instance silver for the transport of chlorine or sulphate ions in cold solution, copper, nickel, or iron for hydroxyl ions in alkaline solutions, and lead for transport of oxygen in acid solutions. Sulphur may be carried by any of these metals. If the cylinders c<1> are of silver and the cylinders c of copper, and the electrolytes to the left of silver cylinders are brine while the others are milk of lime, silver chloride is formed and decomposed on the silver cylinders, and copper oxide on the copper cylinders, with the final formation of caustic soda and calcium chloride in alternate compartments. Similarly with the series brine-silver-dilute sulphuric acid-lead-brine &c. from left to right, caustic soda and hydrochloric acid are formed. Another series, brine-silver-dilute sulphuric acid-lead-calcium sulphate solution-silveracid-lead-brine, gives caustic soda, hydrochloric acid, lime, and sulphuric acid. If the solutions are concentrated, the products sink to the bottom of the tank, the temperature being preferably kept at about 15 C. Warm electrolytes may be circulated in the compartments, which are then made narrow so as to give a short path for the electric current. Solids may be added to maintain the concentrations. Electrolyte adhering to the cylinders may be washed back by water sprays. Diaphragms may be arranged in the compartments.
Patent GB-315936-A (GB)
Title: Improved self-locking nut
IPC: F16B39/04
Filed: 1928-05-08
Abstract: 315,936. Ritchie, H. G. May 8, 1928. Locking nuts. - Lock - nut arrangements wherein a tapered pin having grooves to fit the screw thread of the bolt is inserted in a slot in the nut, are characterized by the pin being of tapered oblong shape. The pin D, Figs. 3 and 4, has grooves E which grip the thread in a bolt C, Fig. 2, when inserted in a slot B in the nut A. The slot may be in the head of the nut or in the body portion. The thinner end of the pin may be split and opened out after insertion in the nut. In an alternative construction, the hole in the nut does not cut through the thread, in which case the locking pin is adapted to press the screw part of the nut against the bolt.
Patent GB-135106-A (GB)
IPC: F16H25/12
Abstract: 135,106. Nachenius H. A. J. de B. March 27, 1919. Screw - and - nut mechanism for converting the rotary motion of a shaft 17, Fig. 4, into the reciprocation of a member 8, which may be employed to drive a pump, comprises a pair of oppositely-threaded nuts 1, 2, Fig. 1, always engaging corresponding threads in the shaft 17. A ball thrust bearing 5 separates the nuts 1, 2, which are formed with friction cones 6, 7 adapted to engage and be held against rotation by a central double cone 8. In the form shown in Fig. 1, if the screwed shaft is rotating, the nut 1 operates and pushes the member 8 to the right, the nut 2 turning idly at twice the speed of the shaft. According to the invention, an abutment is provided to stop the nut 2, when the member 8 travels on and engages and holds the nut 2 from rotation. The nut 2 becoming operative pushes the double nut to the left, until it again becomes automatically reversed. One of these abutments 34 is shown in Fig. 4. The abutments may be resilient, and may be adjustable to vary the stroke. The double nut is within a casing 21, which excludes excess of oil. In a modified arrangement, the friction cones can slide a little upon the nuts to facilitate reversal. Also, the nuts may be on separate geared shafts connected by a transverse member such as 8, Fig. 1.
Patent GB-475108-A (GB)
Title: Improvements relating to suction operated wind screen wipers for motor vehicles
IPC: B60S1/18
Filed: 1936-05-13
Abstract: 475,108. Windscreen-cleaners. LUCAS, Ltd., J., and WATSON, E. A. May 13, 1936, No. 13516. [Class 138 (i)] [Also in Group XXVI] In oscillatory suction - operated windscreen.-wipers for motor vehicles, one or more springs are combined with the wiper-operating mechanism so as to be energized during each movement of the mechanism, whereby the stored energy of the spring or springs serves to assist the suction action at each reversal of motion of the wiper. In the construction shown, an oscillatory arm a transmits motion from a suction motor b to links c which are connected to adjacent ends of racks d, adapted through pinions e to oscillate wiper arms h. Each rack is connected to a spring f fixed at its other end. The springs are adapted to be energized alternately during the operation of the mechanism, the stored-up energy of the springs assisting in reversal of the movement of the wipers after the end of each traverse. If desired, both springs may be energized during each movement, one being stretched and the other compressed. Alternatively a single spring may be used which is stretched during the latter part of the movement of the mechanism in one direction and compressed during the latter part of the movement in the other direction. The spring or springs may be arranged within or on the casing of the motor b to act directly on the piston or vane subjected to suction.
Patent GB-828470-A (GB)
Title: Air spring
IPC: F16F9/04
Filed: 1957-04-29
Abstract: 828,470. Pneumatic springs; spring suspensions. HIRST, T. E. C. Dec. 24, 1957 [April 29, 1957], No. 13521/57. Classes 108(2) and 108(3) In an air spring the bellows are made of metal and the convolution or convolutions are of a torus shape. Air springs 6, Figs. 1, 2, are applied to a road vehicle suspension system. Wishbones 5 and arms 2 support the front wheels and arms 2A support the rear wheels. The arms 2, 2A are rigidly connected to cross-members 3 which pivot in bearings 4, 8, attached to the vehicle body 1. Movements of the wheels in a vertical plane are transmitted to the air springs 6, supported by brackets 11, via the arms 2, the members 3, and arms 10, which bear on one end of the springs 6 and are rigidly attached to the cross-members 3. Fig. 7 shows a modified cross-section of bellows. This has end closures 12.
Patent GB-510035-A (GB)
Title: Improved fuel pump diaphragms
IPC: F02M37/04
Filed: 1938-05-06
Abstract: 510,035. Diaphragm pumps. GENERAL MOTORS CORPORATION. May 6, 1938, No. 13556. Convention date, Feb. 12. Drawings to Specification. [Class 102 (i)] [Also in Groups VIII and IV] A fuel pump diaphragm consists of a flexible fabric coated with the resinous reaction product of a polyhydric alcohol and polybasic acids, one of which has at least two carboxyl groups separated by five or more carbon atoms, e.g., sebacic acid, and forming a flexible resin and another has at least two carboxyl groups separated by two or three carbon atoms, e.g., succinic acid, and forming a resin which is less flexible but more insoluble in the organic solvents in the fuel. The fabric is preferably woven from two-ply mercerised cotton yarn. The polyhydric alcohol may be glycerol, ethylene glycol or mannitol. In the example sebacic acid, succinic acid and glycerine are heated at 170‹F. to the B stage, dissolved in butyl alcohol or cyclohexanol and applied to the fabric by immersion. After pressing between a steel roll and a hard rubber roll the coated fabric is heated to 220‹F. to convert the resin to the C stage. It is then softened by treatment with a mixture of petrol, alcohol and benzol. In place of succinic acid, tartaric or citric acid or their thermal decomposition products, e.g., malic, methyl succinic and aconitic acid may be used. In a modification the acid forming the more insoluble resin may be replaced by fillers such as lamp black, copper or aluminium or the oxides of copper, lead, nickel, mercury, zinc, iron, magnesium or manganese.
Patent GB-696761-A (GB)
Title: Improvements in or relating to the crimping of textile fibres
Inventor: SAMMONS CHARLES WILLIAM
IPC: D02G1/12
Filed: 1950-05-31
Abstract: 696,761. Crimping fibres; sliver guides; heating arrangements and rollers for spining &c. machine. BRITISH CELANESE, Ltd. May 29, 1951 [May 31, 1950], No. 13606/50. Classes 120(i) 120(ii) and 120 (iii) Textile fibres or continuous filaments  are crimped by -means of the apparatus described and claimed in Specification 696,762 augmented by means for heating the fibrous material so that it is hot when in the confined passage 30. The material may be of a thermoplastic nature, e.g. filaments or staple fibres of cellulose acetate or other organic derivative of cellulose such as cellulose propionate, cellulose butyrate, cellulose acetate butyrate, cellulose acetate stearate and ethyl cellulose, or of synthetic linear polymers such as polyamides, or of vinyl compounds such as copolymers of vinyl acetate with vinyl chloride, vinylidene chloride or acrylonitrile, or non-thermoplastic fibres such as cotton or flax fibres, or continuous filaments or staple fibres of regenerated cellulose, and immediately before crimping may receive an application of a liquid such as water or an aqueous dressing or lubricant. The material may be heated while in the passage 30 the walls of which can be heated by electrical elements 51, 52, carried. within a casing filled with heat insulation 56, or by a jacket for the reception of a fluid-heating medium e.g. steam, hot water. Alternatively or in addition the material may be :heated immediately before reaching nip rollers 13, 14, by passing it around or in contact with a heated roller or in sliding contact with a curved heated surface, or it may be passed through a tube that is heated e.g. electrically or by a heating jacket, or through which steam may be passed and allowed to impinge on the rollers 13, 14, in which case the material may be moistened by the vapour condensing thereon, Figs. 5-8 (not shown).
Patent GB-198885-A (GB)
Title: Improvements relating to the supplying of cooled or heated air to the pistons of internal combustion engines
IPC: F01L13/00
Filed: 1922-05-15
Abstract: 198,885. Kodama, R. May 15, 1922. Starting.-The piston is heated or cooled by air admitted to its interior through telescopie pipes and supplied from a reservoir G by a twostage compressor 3 which delivers from the lowpressure and either directly through the pipe 7 or through a heat exchanger 5 and a pipe 8. The high-pressure air is similarly delivered hot or cooled to a reservoir 26 for starting.
Patent GB-569058-A (GB)
Title: Improvements in or relating to remote control mechanisms
IPC: G08B9/08
Filed: 1943-08-21
Abstract: 569,058. Ships' telegraphs. CHADBURNS (LIVERPOOL), Ltd., [formerly CHADBURN'S (SHIP) TELEGRAPH CO., Ltd.], and PIGOTT, S. T. Aug. 21, 1943, No. 13660. Drawings to Specification. [Class 118 (ii)] To minimise the effect of backlash in the transmission shafting from a transmitter to a remote control device such as a ship's telegraph, the connecting shafting is operated through a movement multiplying gear. The apparatus described is the same as that described in Specification 5i9,057, in which the movement multiplying gear comprises, at the transmitting end, a spiral gear 16 which is keyed to a shaft 14 carrying a handle 13 and rotates the vertical secondary spiral gear 17 driving the output shaft 18. The output shaft may be given a rotation of 540 degrees for a rotation of 90 degrees in the shaft 14.
Patent GB-979354-A (GB)
Title: An arrangement for use in the distribution of single conductors of a multi-core cable
IPC: H02G3/16
Filed: 1962-04-09
Abstract: 979,354. Junction boxes. TELEFONAKTIEBOLAGET L. M. ERICSSON. April 9, 1962 [April 14, 1961], No. 13664/62. Heading H2E. In a terminal block 1 formed with a trough 5, for receiving a multicore cable, knockouts 8, through which the individual cable cores are led are provided in the block wall which separates terminals 6 from the trough. The terminal block may be fitted in a cavity in a box, e.g. of glass fibre armoured plastic, formed by upstanding portions on the box base and cover with cable entry apertures 18 in the base and single conductor exit apertures 12 in the base and sides. The cavity may be filled with a cablecompound provided that sufficient packing is introduced between the terminal block and the box.
Patent GB-544803-A (GB)
Title: Process for the manufacture of resites
IPC: C08G8/28
Filed: 1939-05-08
Abstract: 544,803. Synthetic resins. THORNTON, A. A. (Raschig Ges., F.). May 8, 1939, No. 13680. [Class 2 (iiij] Insoluble and infusible cast resins resistant to chemical action are produced by admixing an easily soluble resole or preliminary condensation product, obtained by condensing, in the presence of alkaline condensing agents, 1 mol. of phenol with, at least, 1 or preferably 1“ mols. of formaldehyde, with a fatty acid or resin acid having more than 12 carbon atoms in the molecule and whose salts are soluble as gels in the resin and have an emulsifying action ; the amount of acid being such that the alkaline condensation agent is not completely neutralized and hardening being effected, in moulds, by further condensation. Paraformaldehyde, trioxymethylene or compounds splitting off formaldehyde may replace formaldehyde. Specified alkaline condensing agents include alkalies, alkaline earth hydroxides, quaternary ammonium bases and aromatic and aliphatic amines containing at least 2 carbon atoms. Specified fatty or resin acids include oleic, palmitic, stearic, ricinoleic, linseed oil, train oil, abietic, copal resin, tall oil, coconut oil, palm kernel and wool grease acids. Condensation is effected at 40-100‹C. and hardening at 40-170‹C. Specified phenols are phenol, cresols, xylenols and resorcinol, and mixtures. In examples, phenol is first condensed with aqueous formaldehyde in the presence of caustic soda and, after removal of water by vacuum distillation, the product is further worked up with oleic or ricinoleic acid.
Patent GB-1356400-A (GB)
Title: Method of reforming hydrocarbons and catalyst therefor
IPC: C10G35/095
Filed: 1971-05-07
Abstract: 1356400 Dehydrocyclization; reforming hydrocarbons; hydrocracking ASAHI KASEI KOGYO KK 7 May 1971 [15 May 1970 13 Feb 1971] 13812/71 Heading C5E [Also in Division B1] Hydrocarbon is reformed by a process wherein a mixture of hydrogen and the hydrocarbon is contacted under reaction conditions including a temperature of from 400‹ to 650‹ C., and, preferably, an absolute pressure of from 1 to 50 kg/cm.<SP>2</SP>, a hydrocarbon weight liquid hourly space velocity of from 0À1 to 10 and a hydrogen: hydrocarbon volume ratio of from 1 : 1 to 15 : 1, with catalyst which comprises (a) from 0À01 to 5 weight per cent of platinum, (b) from 0À01 to 5 weight per cent of lead, (c) from 0À01 to 10 weight per cent of a further component which is at least one member selected from copper, silver, gold, mercury, boron, gallium, indium, thallium, scandium, yttrium, cerium, thorium, uranium, titanium, zirconium, hafnium, phosphorus, antimony, vanadium, niobium, tantalum, manganese, iron, cobalt and nickel and (d) carrier material which is silica, alumina or silica-alumina, the weight ratio of lead to platinum being less than 3. The hydrocarbon to be reformed may be naphtha, kerosene, gas oil or a pure hydrocarbon; the reforming may involve hydrogenation of naphthenes and/or isomerization, hydrocracking and dehydrocyclization of paraffins. As exemplified, naphtha having a specified composition is reformed under specified reaction conditions in the presence of a fixed bed of catalyst which contains, as further component, thorium plus tantalum (Example 6) or titanium plus iron (Example 7) or one of the remainder of the elements specified as the further component excepting cobalt (Examples 1 to 5; 8 to 13; 15 to 23) and, as carrier material, alumina which is specified as gamma-alumina in some of the examples; and toluene is prepared by dehydrocyclization of n-heptane under specified reaction conditions in the presence of a fixed bed of catalyst which contains, as further component, cobalt and, as carrier material, alumina (Example 14).
Patent GB-490154-A (GB)
Title: Improvements in internal combustion engine cylinders
IPC: F16J10/04
Filed: 1937-05-18
Abstract: 490,154. Cooling cylinders. DAIMLERBENZ AKT.-GES. May 18, 1937, No. 13822. Convention date, May 16, 1936. Drawings to Specification. [Class 7 (ii)] In engines, in which the cylinders are cooled by a high boiling-point liquid, e.g. ethylene glycol, transference of heat to the crank-case is reduced by the interposition of a heat-insulation layer between the cylinder-block and the crank-case, each cylinder having a dry liner which projects slightly into the crank-case. The heat-insulation layer may comprise a small integral flange on the liner and a paper packing, or a flat annulus of insulating-material, e.g. that known by the Registered Trade Mark " Bakelite," or asbestos. Each liner is screwed at its base into the cylinder-block.
Patent GB-128462-A (GB)
Title: An Improved Tool for Ironing and like Hot-pressing Operations.
Inventor: ARMELIN EDOUARD
IPC: D06F75/02
Filed: 1918-08-26
Abstract: 128,462. Armelin, E. Aug. 26, 1918. Affixing by adhesives. - An ironing-tool for use in applying adhesive material to fabrics or tyres consists of a metal sheet a turned up at the edges to form a flange b, and provided with a bifurcated handle c pivoted at d, and preferably made in two parts hinged together at e to facilitate packing. The iron may be heated by a sheet of impregnated cardboard, laid on metal stripe on the floor of the iron. The flange b is perforated to give access of air to the fuel.
Patent GB-769815-A (GB)
Title: Improvements in or relating to electrical power supplies
Inventor: CROWTHER GERALD OFFLEY
IPC: G05F1/52
Filed: 1955-05-13
Abstract: 769,815. Automatic voltage control systems. MULLARD RADIO VALVE CO., Ltd: May 13, 1955; No. 13896/55. Addition to 708,169. Drawings to Specification. Class 38 (4). The series valve stabilizer disclosed in the parent Specification, which can be switched from one stabilized output voltage to a second stabilized output voltage by means of a keying valve, is modified by the addition of a valve across the output terminals which is normally biased to cut-off but is rendered conducting by the keying valve when the output voltage is switched from the higher to the lower valve. This discharges capacitors said to occur in the load circuit.
Patent GB-899896-A (GB)
Title: Improvements in and relating to polyamide stabilisation
IPC: C08K5/57
Filed: 1960-04-21
Abstract: A stabilized polyamide comprises a linear high molecular weight polyamide and, in admixture therewith, from 0,025 to 2,0% by weight, based on the weight of the linear polyamide of a tetravalent tin compound having at least one direct carbon to tin bond.  "High molecular weight" is defined as a molecular weight in the range of 2,000 to 20,000.  Specified polyamides are nylon-6, nylon-7, nylon-11, nylon-6,6, nylon-6,10 and nylon-12. Specified tin compounds are those of the general formulae R4Sn, RnSnX4-n, R2SnY, compounds having n carbon to tin bonds and 4-n bonds from tin to oxygen, sulphur, nitrogen or phosphorous linking organic radicals, polystannic compounds having carbon to tin bonds and preferably also bonds to halogen, hydrogen, oxygen, sulphur, nitrogen or phosphorus and stannonic acid compounds where R is a hydrocarbon or substituted hydrocarbon radical, X is halogen, hydrogen or hydroxyl, Y is oxygen and n is an integer from 1 to 3, many such compounds being specified. The stabilizer may be added to the reactants, during the preparation of the polyamide or to the polyamide itself and may be mixed with known stabilizers, e.g. chromic acetate and copper salicylate.  In Example 1, nylon-7 prepolymer is made from ethyl-7-aminoheptanoate, the prepolymer being polymerized in the presence of adipic acid and (2) to (7) dibutyl tin oxide; (8) tetraphenyl tin; (9) tetraoctyl tin; (10) tributyl tin hydroxide; (11) tributyl tin chloride; (12) dibutyltributyl tin phosphinate; (13) dibutyl tin bis-(dilaurylmercaptide); (14) dibutyl tin dilaurate; (15) diphenyl tin dichloride; (16) dibutyl tin dibenzene sulphonamide; (17) butyl tin trichloride; (18) octyl stannonic acid; and (19) hydroxystearoxy polystannate whilst in Examples (20) to (22) dibutyl tin oxide is mixed with nylon-7; (23) dibutyl tin oxide is mixed with nylon-6 and (24) to (27) ethyl-7-aminoheptanoate is polymerized in the presence of water, ethyl 6-cyanohexanoate and dibutyl tin oxide, the products being spun into fibres.