baber/WOPTO huggingface dataset:
Patent GB-617145-A (GB)
Title: Improvements in or relating to compositions for forming coatings and method of making the same sheet materials
IPC: D21H19/18
Filed: 1943-11-30
Abstract: A composition for coating sheet materials comprises a major proportion by weight of microcrystalline wax and an aluminium soap of a higher fatty acid, said composition having been transformed from a thixotropic gel of maximum viscosity to a less thixotropic condition approaching the Newtonian condition as determined by a Brookfield Synchrolectric viscosimeter at 250 DEG  F.  The soap may be aluminium stearate, e.g. technical aluminium distearate, or the palmitate or oleate, preferably in amount between four and twenty per cent by weight.  The microcrystalline wax preferably has a drop melting point from 130 DEG  to 180 DEG  F., and a needle penetration from 10 to 60 at 77 DEG  F., and the composition may be compounded under controlled conditions of time, temperature and mixing to have a viscosity not less than 10,000 c.p.s. at 250 DEG  F.  There may also be present an embrittlement inhibitor such as tetramethylthiuram disulphide, alkylated polyhydroxyphenol and hydroquinone, or other substances such as high melting waxes, triethanol amine, ammonia, stearic or oleic acid, abietic or citric acid, opal wax, carnauba wax, paraffin wax, montan wax, beeswax, hydrogenated oils, rubber, petrolatum, mineral oils, pigments, dyes and fillers.  Such compositions may be made by melting microcrystalline wax adding up to 20 per cent soap, mixing and heating to a thixotropic gel or maximum viscosity and then further heating and mixing.  Or the soap may be added to the wax, a solvent added and then the mixture heated and mixed. Specified solvents are naphtha, toluol, gasoline and benzol.  The compositions may be used for coating sheet materials such as metal foil and rubber hydrochloride.ALSO:A composition for coating and laminating sheet materials comprises a major proportion by weight of microcrystilline wax and an aluminium soap of a higher fatty acid together with ester gum, phenol-formaldehyde resin or an isobutylene polymer, said compositions having been transformed from a thixotropic gel of maximum viscosity to a less thixotropic condition approaching the Newtonian condition as determined by a Brookfield synchro-electric viscosimeter at 250 DEG  F.  The soap may be aluminium stearate, palmitate or oleate, preferably in amount between 4 and 20 per cent by weight.  There may also be present tetramethyl thiuram disulphide, alkylated polyhydroxy phenol, hydroquinone, high melting waxes, trethanolamine, ammonia, stearic acid, oleic acid, citric acid, abietic acid, opal wax, carnauba wax, paraffin wax, montan wax, beeswax, hydrogenated oils, rubber, petrolatum, mineral oils, pigments, dyes, fillers and solvents such as naphtha, toluol, gasoline and benzol.  It is preferred that the amount of ester gum is up to 20 per cent by weight.
Patent GB-1141307-A (GB)
Title: Bicyclic derivatives of hydroquinone
IPC: C07C35/22
Filed: 1966-05-06
Abstract: 1,141,307. Substituted hydroquinones. EASTMAN KODAK CO. 6 May, 1966 [10 May, 1965], No. 20012/66. Heading C2C. A 1,4 - bridged - 5,8 - dihydroxy - 1,2,3,4 - tetrahydronaphthalene is prepared by reacting the corresponding 1,4 - bridged - 1,4,4a,8a - tetrahydro - 5,8 - naphthoquinone with a mixture of a mineral acid, acetic or propionic acid, and acetic or propionic anhydride to form the corresponding 1,4 - bridged - 5,8 - diacyloxy - 1,4 - dihydronaphthalene, hydrogenating this compound to the corresponding 1,2,3,4 - tetrahydronaphthalene and converting the acyloxy groups at the 5- and 8- positions to hydroxy groups by hydrolysis or ester interchange.
Patent GB-1005340-A (GB)
Title: Amplitude modulator
Inventor: MANDY ANTHONY WILLIAM LOCKE
IPC: H03C1/54
Filed: 1964-05-14
Abstract: 1,005,340. Double balanced modulators. STANDARD TELEPHONES & CABLES Ltd. May 14, 1964, No. 20074/64. Heading H3R. A double balanced modulator comprises a long-tailed pair circuit formed by transistors 3 and 4 via which two oppositely phased signals are obtained from a modulating signal applied at terminals 1 and 2 and a pair of transistor switches 7, 12 which are alternately biased by succeeding half-cycles of a carrier voltage connected to terminals 13 and 14 to present alternately a low impedance path between the output terminals 5, 6 of the long-tailed pair and the output terminal 9 of the modulator. Upper and lower sideband signals are obtained between terminal 9 and ground or the output may be combined with the output of a second modulator to which the same modulating and carrier signals shifted in phase by 90 degrees are applied to obtain a single sideband output.
Patent GB-148171-A (GB)
Title: Improvements in heating or drying apparatus
IPC: F26B23/10
Filed: 1920-07-09
Abstract: 148,171. Greuet, O. A. J. B. Feb. 11, 1919, [Convention date]. Vulcanizing-chambers. - The outer casing 1 of a dental vulcanizer and sterilizing oven is filled with steam from the coil 7 heated by a lamp. The inner chamber 11 can be put into communication with the outer by screw valves 5, 5, operated from the outside.
Patent GB-738908-A (GB)
Title: Improvements in locks for securing wheeled vehicles against movement
IPC: B62B5/04
Filed: 1953-07-20
Abstract: 738,908. Track brakes. FLEXELLO CASTORS & WHEELS, Ltd., and TOOTH, A. C. March 12, 1954 [July 20, 1953], No. 20104/53. Class 103 (1). [Also in Group XXX] In a lock, sprag or jack for securing wheeled vehicles against movement, a tubular metal body portion 1 welded to a fixing plate 2 is secured to a truck or like wheeled vehicle, a metal tube 3, linearly slidable within the body portion 1 and provided with a large diameter disc 3a faced with a pad of friction material 4, comprises the ground engaging portion, and a spring 5 acting between the body portion 1 and the ground engaging portion tends to pull the latter out of engagement with the ground, a toggle lever mechanism interconnecting the body portion and the ground engaging portion so that in the locked toggle position the ground engaging portion is extended for engagement with the ground whilst when the toggle is unlocked the spring 5 lifts the ground engaging portion and retains it out of contact with the ground. In operation, when it is desired to lock the truck, the foot operating pad 8 is depressed from the retracted position, illustrated by the full lines in Fig. 1 into the dotted line position the upper bell crank lever 7 pivoting about the pair of lugs 6, secured to the body portion 1, to push the link 9, pivoted at one end to a lug 10 secured to the metal tube 3 and pivoted at the other end to the upper bell crank lever 7, downwardly thus urging the whole ground engaging portion downwardly from the body portion 1. The engagement of the pad 4 with the ground moves the body portion 1 and therefore the truck slightly upwardly to take a part of the weight of the truck. When the three pivots 17, 15, 16 of the upper bell crank lever 7 and associated link 9 are in a straight line (i.e. the dead centre position) further movement of the foot operated pad 8 downwardly will lock the toggle linkage so that the ground engaging portion supports part of the weight of the truck. To unlock the mechanism, the foot operated pad 13 of a trip lever 11 is depressed so that the link 9 is moved outwardly from the ground engaging position and the linkage passes the dead centre position when the weight of the truck and the action of the spring 5 will collapse the linkage lifting the mechanism to the inoperative position illustrated by the full lines in Fig. 1.
Patent GB-1114518-A (GB)
Title: Vehicle identification apparatus
IPC: B61L25/04
Filed: 1966-05-06
Abstract: 1,114,518. Inductive signalling; transponder apparatus. RADIO CORPORATION OF AMERICA. 6 May, 1966 [17 May, 1965], No. 20125/66. Headings H4U and H4L. [Also in Division B7] In a system for identifying vehicles, e.g. railway wagons, as they pass a given point, each wagon 10 carries a transponder comprising a plurality of piezo-electric crystals 16, each tuned to a different frequency and connected in parallel to a loop aerial 18. A stationary transmitting loop 20 is positioned between the rails 12 and is connected to a transmitter 24 and via gate to a receiver 26. At the transmitter, pulses are generated at 28, shaped at 30 and modulate a carrier of about 2 Mc/s. at 32, the input to the receiver being blocked for the duration of each pulse from shaper 30. This excites the crystals 16 in the transponder and they continue to oscillate for a short time when the pulse from the transmitter ceases, the resulting signals being transmitted via loops 18, 20 to the receiver 26. Each wagon is allotted a characteristic combination of frequencies which energize corresponding crystals 40 at the receiver and via detectors 42 operate appropriate indicators 44.
Patent GB-685210-A (GB)
Title: Catalyst activators
IPC: C08F36/04
Filed: 1949-08-02
Abstract: Conjugated dienes such as butadiene, isoprene, dimethylbutadiene, chloroprene, and methyl pentadiene, or mixtures thereof with other copolymerizable substances such as styrene, acrylonitrile, and methyl methacrylate, are polymerized in aqueous emulsion in the presence of a peroxy catalyst such as cumene hydroperoxide, and a water-soluble organic chelate complex of an iron salt of a compound of the general formula <FORM:0685210/IV (a)/1> or a water-soluble salt thereof, R being a carboxyl, alkyl carboxyl, or aryl carboxyl group.  Specified are ethylene p  dinitrilo acetic acid, ethylene dinitrilo formic acid, and ethylene dinitrilo salicylic acid, and their sodium, potassium and ammonium salts.  An activator solution is normally prepared by mixing a compound of the above general formula with water, ferrous sulphate and an activating sugar such as glucose, then boiling to digest the sugar; the activator solution may also contain trisodium phosphate or potassium hydroxide.  The aqueous polymerization medium may contain emulsifiers such as the sodium or potassium salt of disproportionated rosin acid, a dispersing agent such as a naphthalene sulphonate-formaldehyde polymer, mixed tertiary mercaptans containing C12, C14, and C16 radicals sodium hydroxide, potassium hydroxide and potassium chloride.  The Specification as open to inspection under Sect. 91 describes the use of organic chelate complexes derived from compounds such as nitrilo triacetic acid, ortho-phenanthroline, and alpha, alpha1-bipyridyl, and the use in preparing the complexes of salts of aluminium, uranium, molybdenum, silver, chromium, tin, tungsten, calcium, mercury, arsenic, copper, nickel, cadmium, manganese, cobalt, lead, and zinc. Also described is the use of activators prepared by the addition of ferrous sulphate to potassium or sodium pyrophosphate, "Monastral" blue, "Monastral" green (the word "Monastral" being a Registered Trade Mark), disalicyl ethylene diamine, potassium salicylate, potassium citrate, lactic acid, sodium thiosulphate, potassium tartrate, potassium acid phthalate, potassium phthalate, sodium oxalate, ferrous gluconate, potassium ferrocyanide, aresnious oxide, tannic acid, and ferrous phthalocyanine.  This subject-matter does not appear in the Specification as accepted.
Patent GB-281573-A (GB)
Title: Improvements in or relating to apparatus for carrying out aiming and firing exercises with small-arms
IPC: F41A33/00
Filed: 1927-07-29
Abstract: 281,573. Sandberg, N. P., and Dhejne, G. E. July 29, 1927. Teaching smallarm shooting.-A target practice device comprises a marking rod and miniature sighting and recording targets carried just in front of the muzzle by a holder universally mounted on the gun rearwards of the muzzle and adapted to rest, at a point between the fulcrum and the targets, on a fixed support, so that when the gun muzzle is moved the targets are also moved but in the opposite direction. As shown, the target card 23, marked with the sighting and recording targets, is carried by a frame 3 mounted by a ball joint 12 to a bracket 2 on the gun. A short distance in front of the ball joint is a roller 15 adapted to rest on a fixed support so that, when the muzzle is moved, the target holder receives an amplified movement in the opposite direction. Side arms 5 on the frame embrace the barrel and limit the movement. The spring- retracted marking rod 6 is slidably mounted in the -barrel and is driven forwards by the firing pin.
Patent GB-320410-A (GB)
Title: Improvements in or relating to printing
IPC: B41M1/30
Filed: 1928-07-13
Abstract: 320,410. Morris, H. N. Julv 13, 1926. Printing with special inks and materials. - A rubber-cellulose medium containing a salt or salts of cellulose and rubber, or a rubber-like substance such as balata. or gutta percha, prepared, for example, as described in Specification 274,968, [Class 70, Indiarubber &c.], is employed, with or without a colouring-matter, as a printing-ink, chiefly for use in intaglio printing. A thinner, which does not act adversely on the medium, and which may consist of a solvent of the medium or colour, may be added, so that by the use of different colours and different concentrations, varying effects may be produced. The medium and colour may be mixed before use, or mixing can be effected during printing. The material to be printed may be printed with the uncoloured medium and subsequently dyed by means which will not take where there is printing, According to examples, a rubber-cellulose medium containing 2 per cent of raw rubber and 6 per cent of cellulose in the form of ester or ether is mixed with soluble dyes, lakes, or pigments: and a thinner may consist of a mixture of butyl alcohol. toluol, methylethylene glycol, and tetrahydronaphthalene.
Patent GB-1211030-A (GB)
Title: Novel indole derivatives and process for their production
Inventor: TROXLER FRANZ
IPC: C07D209/08
Filed: 1967-11-15
Abstract: 1,211,030. Hydroxy-indoles. SANDOZ Ltd. 15 Nov., 1967, No. 20387/70. Divided out of 1,211,029. Heading C2C. The novel compounds, 4-methyl-5-hydroxy-, 4-hydroxy-5-methyl- and 6-hydroxy-7-methylindole, are prepared by hydrogenating a corresponding di - (C 1-4  alkyl) aminomethylhydroxy-indole to convert the dialkylaminomethyl group into a methyl group. The di - (C 1-4  alkyl) aminomethyl - hydroxy - indoles are prepared by reacting 4-, 5- or 6-hydroxyindole with formaldehyde and a di-(C 1-4  alkyl)- amine.
Patent GB-796386-A (GB)
Title: Improvements relating to the synthesis of steroids
IPC: C07J75/00
Filed: 1956-07-02
Abstract: D 1,4-Cyclopentanophenanthrene compounds are prepared by heating a 1,2-saturated cyclopentano-phenanthrene compound of the D 4-3-ketopregnene series with at least one equivalent (one-half mol) of selenium dioxide.  The reactants for the above process are preferably of the general formula <FORM:0796386/IV (b)/1> wherein R represents hydrogen, R1 represents hydrogen or a hydroxy group or a group of the formula R111O- wherein R111 represents an acyl group, or R and R1 together represent a keto group, R11 represents an acyl group, X represents hydrogen or a halogen, and Z represents hydrogen or a hydroxy group or a group of the formula R111O- wherein R111 has the above significance, and for these reactants it is preferable to carry out the reaction in an inert organic solvent such as a liquid lower fatty acid -particularly acetic acid, an ether-particularly dioxane, or an acid anhydride-particularly acetic anhydride.  The R11 group may be a formyl group or a hydrocarbon carbonyl group of less than 10 carbon atoms, e.g., an acetyl, propionyl, butyryl or ethanoyl group, a hydrocarbon aroyl group, e.g. the benzoyl group, or a hydrocarbon aralkanoyl group, e.g. a phenylacetyl or b -phenylpropionyl group, and the R111 group may be any of the groups detailed for the R11 group, and preferably, because of their ease of hydrolysis, a formyl or a trihalogen-lower fatty acyl group, e.g. a trifluoroacetyl group. If a 21-ester compound of the above general formula is used as the reactant, the resulting D 1,4-compound may be treated with a base to form the free 21-hydroxy compound.  Reactants detailed are the 21-carboxylic esters of cortisone, hydrocortisone, corticosterone, 11 - desoxycorticosterone, 11-dehydrocorticosterone, D 4-pregnene - 17a ,21 - diol - 3,20 - dione, a 9a  - halo - hydrocortisone, such as 9a -fluoro- (and chloro-) hydrocortisone, 9a - halo - cortisone, 9a  - halo - corticosterone, and 9a -halo-11-dehydrocorticosterone.  In the examples the 21-acetates of D 1,4 - pregnadiene - 17a ,21 - diol - 3,20 - dione, 1-dehydrocortisone and 1-dehydro-9a -fluorohydrocortisone are prepared.
Patent GB-1180480-A (GB)
Title: Improved Method of and Apparatus for Monitoring Contamination in Liquids
Inventor: TOPOL GEORGE JIRI
IPC: G01N33/28
Filed: 1967-05-03
Abstract: 1,180,480. Photo-electric measurement of impurity level. BOWSER, Inc. May 3, 1967, No.20544/67. Heading G1A. The impurity level in a liquid, e.g. aircraft fuel, is monitored continuously using photoelectric apparatus, by measuring the detector output obtained when the detector receives light scattered by contaminants in the liquid in relation to that obtained when a filtered contaminationfree sample of the liquid which is periodically passed through the apparatus, is investigated. A small amount of the liquid to be monitored is diverted from the main flow to the apparatus of Fig.1 entering at conduit 12 and returning to the main flow via conduit 102. By means of an electronically controlled three-way valve 16, the sample flow can be led direct to the test chamber 22 or via an indirect route which includes conduits 19 and 54, filter 58 and conduit 60. During the first thirty seconds of a four-minute measurement cycle, the sample flow is directed through this filter 58, which removes the major part of the contaminating impurities carried by liquid. During this time the meter (106) monitoring the output of the photo-cell 32 is zeroed by a servosystem, Fig. 3 (not shown), which includes servo-poteniometer (144) connected in a bridge circuit with the photo-cell and driven by a servo motor (156). The switching circuit (124, Fig.2, not shown), then changes the position of the valve 16 to allow unfiltered liquid to reach the chamber 22. The light, from sources 30, scattered by impurities is sensed by the photo-cell whose amplified output is this time measured directly by meter (106), the servosystem now being switched out of circuit. The measurement is independent of changes of composition of the liquid, colour, unfilterable impurities and the condition of cleanliness of the chamber 122, since there are allowed for in the zeroing of the meter. If however, during zeroing, the movement of the servo is very great, signifying excessive contamination of the chamber walls 22, a relay is actuated, Fig.4 (not shown) to energize a red lamp (186). Similarly, if at any time, the liquid flow speed, as sensed by flowmeter 80, drops too low or the supply voltage is insufficiently high, further red lamps (178, 120) are energized. Excessive contamination of the liquid is indicated by a red lamp (158) and a horn (153). Normal operation and satisfactorily low containmination is indicated by four green lamps. Various industrial application of the apparatus are referred to.
Patent GB-371239-A (GB)
Title: Process for matting and rendering opaque artificial silks, artificial straw, films and the like
IPC: D06M11/46
Filed: 1931-07-17
Abstract: Natural or artificial cellulosic filaments, bands, tubes, films, and the like are matted and rendered opaque by treatment with a dilute aqueous solution of colloidal titanium hydroxide containing not more than 0,4 per cent of TiO2.  The materials may be subsequently treated if desired, for example, by bleaching, calendering, shading off, dyeing, and so forth.  The process of the invention may be applied to already dyed goods, or to artificial silks which have previously been submitted to partial matting by a different method.  The matting effect is enhanced if the matted materials are afterwards treated with soaps, fatty acids, or salts or esters thereof, a hydrophobic effect being at the same time produced.  In examples, (1) unbleached viscose silk is treated with a 0,003 per cent solution of colloidal titanium hydroxide, washed, bleached, soaped and dried; (2) freshly spun viscose is treated with a 0,005 per cent colloidal solution of titanium hydroxide, washed and treated as usual; (3) fabric woven from dyed Chardonnet silk is dipped into a 0,016 per cent colloidal solution of titanium hydroxide, rinsed in sodium sulphate solution, washed and dried; (4) viscose artificial straw is treated in a 0,3 per cent solution of colloidal titanium hydroxide, washed, soaped, washed and dried. Owing to the soaping, the capacity of the straw to be wetted is considerably decreased.  Specification 343,121 is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to the application of the process to materials made from cellulose derivatives, such as esters and ethers.  This subject-matter does not appear in the Specification as accepted.
Patent GB-148854-A (GB)
Title: Improvements in or relating to chucks for machine tools
IPC: B23B31/00
Filed: 1920-07-10
Abstract: 148,854. Boltri, L. Dec. 10, 1917, [Convention date]. Chucks.-The jaws 2 slide on ways formed by cylindrical keys 3 retained in the body by pins 4.
Patent GB-724026-A (GB)
Title: Improvements in or relating to condensate feeding arrangements for condensing locomotives
IPC: B61C1/12
Filed: 1952-08-15
Abstract: 724,026. Locomotives. HENSCHEL & SOHN GES. Aug. 15, 1952 [June 16, 1952], No. 20587/52. Class 79(1). In a condensate feeding arrangement for a locomotive a tank 3 is fed from the condensate collecting tank 5 by a pump 1 driven by the condenser cooling fan mechanism 2, condensate proceeding under gravity from the tank 3 to the boiler feed pumps through a pipe 4.
Patent GB-419657-A (GB)
Title: Improvements in resiliently mounted hubs for cycles
IPC: B62L3/00
Filed: 1934-07-13
Abstract: 419,657. Spring-mounted hubs for cycles. FICHTEL & SACHS AKT.-GES., Schweinfurt, Germany. July 13, 1934, No. 20647. Convention date, July 18, 1933. Addition to 410,761. [Class 136 (iii).] In the resiliently-mounted hub with an internally-expanding brake described in the parent Specification, an auxiliary spring acting in opposition to the main spring is provided to check the recoil of the hub which occurs on release of the brake. The auxiliary spring 30 is of spiral form, and is mounted in a casing 33 at the side of the fixed brake plate 24, its inner end engaging the plate 24, while its outer end passes through an arcuate slot in the casing and is bent over at 32 to engage the edge of the arm 28 which secures the axle non-rotatably to the cycle fork, the slot allowing some play to the end 32 of the spring on the recoil, before the end 32 engages the arm 28. One end of the main spring 10 is secured to a member 11 fixed to the axle 5, and the other end 10<a> freely engages a slot 6<a> in the eccentrically-mounted body 6, so as to allow play after the spring has been completely unstressed on recoil.
Patent GB-1212886-A (GB)
Title: Equine vaccine and vaccination treatment
Inventor: HALL RICHARD LAIRD
IPC: A61K39/295
Filed: 1968-05-01
Abstract: 1,212,886. Vaccines for horses. R. L. HALL. 1 May, 1968 [1 May, 1967], No. 20686/68. Heading A5B. Horses are treated 'by the simultaneous inoculation of human influenza virus, tetanus toxoid and encephomyelitis vaccine. Separate injections of each antigen may be given or they may be combined in a single vaccine. Both vaccines may be polyvalent, the influenza vaccine comprising for example Asian, PR-8, AA/1/57 and Great Lakes virus. Equine influenza virus may also be included.