baber/WOPTO huggingface dataset:
Patent GB-1355082-A (GB)
Title: Aerosol dispensing valves
IPC: B65D83/14
Filed: 1971-04-19
Abstract: 1355082 Valves for pressurized dispensing containers PITTWAY CORP [trading as SEAQUIST VALVE CO] 19 April 1971 [16 Feb 1970] 24613/71 Heading F1R [Also in Division F2] The spring-loaded outlet valve member 16, Fig. 13, of a pressurized dispenser has an annular lip with a V-shaped annular depression 141 therein which divides the upper surface of the lip into two sealing surfaces co-operating with a valve sealing gasket 20. As shown, the valve stem 14 has a base plug 145 which opens the valve when the stem is depressed or tilted. The member 16 has flow grooves 149 and is identically shaped at each end so as to be reversible. Many embodiments are described having  features such as (1) swirl chambers Figs. 14, 15, (not shown) with tangential channels in the top surface of the valve member or in the stem base; (2) restrictions at the bottom, top or middle of the valve stem bore Figs. 9, 16, 17, (not shown) or swirl inducing vanes therein; (3) restriction of stem tilting to one direction by the use of a shaped depending skirt on a valve stem actuating button Fig. 18, (not shown) the use of an elongated orifice in the member in which the gasket 20 locates Fig. 20, (not shown), the valve stem having flattened sides to engage the sides of the orifice and prevent the valve stem from turning, or by the use of a valve stem actuating button having a depending lug to substantially prevent such turning Fig. 22, (not shown); (4) variation of spray rate by valve stem rotation, a base flange 222, Fig. 24, of the valve stem having a periphery which is either a spiral or a series of circular arcs of different radii so that by co-action with a radial slot 230 in the valve member 16 continuous or discrete flow variation is obtained; (5) a drain chamber in the valve member and an upstanding central post thereon with filter grooves Figs. 30, 31, (not shown). In Fig. 1 the valve stem base 54 is a closed cone with flow ports 62 and co-acts with a conical cavity 48 of greater taper in the valve member 16 and having at its base a cylindrical cavity 50. The member 16 may be a loose fit in the valve body cavity 32 or a sliding fit therein, when there are flow grooves in one or other or both of the elements 16, 32. There may be a radial step Figs. 4 to 6, (not shown) between the parts 48, 50, on which the apex of the valve stem base 54 may lodge when the stem 14 is tilted, so as to prop the valve open until the stem is manually restored to upright. A similar lock-open action may be obtained with a cylindrical valve stem base flange Fig. 6A, (not shown). To provide metered dispensing Fig. 7A, (not shown) the valve member 16 may have an internally coned rim co-acting with an externally coned projection on the inner floor of the valve body cavity so as to provide a second valve which closes when the outlet valve is opened and vice versa. A valve stem base flange of lobed configuration Figs. 10, 12, (not shown) with a radial port therethrough may be used, the stem having a hemispherical closed end. Reference has been directed by the Comptroller to Specification 1212724.
Patent GB-1383003-A (GB)
Title: Toothpastes
IPC: A61Q11/00
Filed: 1972-05-25
Abstract: 1383003 Toothpaste abrasive COLGATEPALMOLIVE CO 25 May 1972 [3 June 1971] 24643/72 Heading A5B A toothpaste comprises a paste-base in which are dispersed abrasive particles bonded into agglomerates with a water insoluble binder. The abrasive may be zirconium silicate, silica, stannic oxide, feldspar, topaz, calcium silicate, silicon carbide, pumice, alumina, ilmenite, haematite, or titanium dioxide. The water-insoluble binder may be polythene, a polyamide, copoly (styrene/vinyl toluene), Carnauba wax, silicated clay, a gum, gel. or paraffin. The agglomerates may also include a water-soluble binder. The composition may also include a dental polishing agent, and where the base is clear, the polishing agent may also be clear and of similar refractive index, e.g. sodium aluminium silicate. Other ingredients specified include glycerol, sorbitol, tetrasodium pyrophosphate, sodium carboxymethyl cellulose, sodium saccharin, sodium benzoate, deionized water, calcium carbonate, dicalcium phosphate, sodium lauryl sulphate, sodium N-lauryl sarcosinate, pyrogenic silica, chloroform, colouring, flavouring.
Patent GB-502098-A (GB)
Title: Improvements in and relating to picture transmission, television and the like
IPC: H04N5/14
Filed: 1937-09-10
Abstract: 502,098. Television. STANDARD TELEPHONES & CABLES, Ltd., and TERRY V. J. Sept. 10, 1937, No. 24722. [Class 40 (iii)] The direct current components are reduced by subjecting the signals to repeated reversal, preferably at the end of each line. Thus, the normal television signal A, Fig. 1, becomes the signal B. The normal signal A is applied at LL, Fig. 3, and a square-topped wave of half the line frequency is applied over transformer T1 to a diagonal of the " ring " modulator M, the repeatedly reversed signal B occurring at T2. The normal signal A can be obtained by rectifying the signal B. Preferably, the signal B is modulated on a carrier wave, and the carrier frequency is suppressed, so that the envelope is that of the normal signal modulated on a carrier whose phase is reversed at the end of each line. This carrier can be demodulated by a synchronized oscillator and the signal B obtained. If a picture signal without synchronizing signals is subject to reversals that are not instantaneous, the reversed signal when rectified will comprise blacker-than-blaok peaks at the reversal points, and these may be used as synchronizing signals..
Patent GB-241196-A (GB)
Title: Signalling apparatus for crossings of streets and railways in the level
IPC: B61L29/28
Filed: 1925-10-06
Abstract: 241,196. Kremenezky, J. [Firm of], and Wimberger, L. Oct. 11, 1924, [Convention date]. Electrical systems, automatic. - A signalling arrangement for railway &c. crossings comprises train-operated circuit-closing means at opposite sides of, and remote from, the crossing, the means being effective only when operated by a train approaching the crossing, and serving to close a circuit which effects operation of a contact lever. This lever when operated closes the circuit of a signal device at the crossing, and breaks the train-closed circuit. A train-operated contact at the crossing, operated by trains passing in either direction, resets the apparatus. As shown, pairs of contacts 2, 21 and 4, 41 are disposed at opposite sides of the crossing. When contact 2 is closed by a passing train an electromagnet 10 is energized, and its armature 12 attracted. Closure of contact 21 similarly energizes a magnet 11 and armature 13 is attracted. Magnets 10, 11 are in parallel with one another and in series with a resistance 8, and with a winding 25. Armatures 12, 13 have insulating material 121, 131 on their lower and upper surfaces respectively. When operated by a train approaching the crossing from the left, metallic contact is effected between the armatures and resistance 8 is short-circuited through conductors 9, 19. When operated in reverse order, the insulations 121, 131 engage and the resistance 8 remains unshunted. The current passing through winding 25 is insufficient to operate 9 pivoted armature 20 unless resistance 8 be short-circuited, but when the resistance is short-circuited by an approaching train, armature 20 is thrown to the right, closing a contact 23 in the circuit of a signalling device 26 situated at the crossing, and opening a contact 22 in the circuit of windings 10, 11, 25. A train-operated contact 3 placed at the crossing, and closed by a train passing in either direction, serves to energize a winding 24 which restores armature 20 to the position shown. Contacts 4, 41 operate in the above-described manner, being effective for trains approaching from the right. In a modification, the parts 10 - - 13 are omitted, and the contacts 2, 21, 4, 41, which are made operable only by trains moving towards the crossing, directly close the circuit through coil 25, the duplication of the contacts in 'this case being a safeguard against failure of one of them.
Patent GB-153447-A (GB)
Title: Improvements in connecting rings for jewelry and the like
IPC: A44C11/00
Filed: 1919-10-13
Abstract: 153,447. Goozley, C. A. Oct. 13, 1919. Gated rings.-A gated ring for connecting chains for jewellery &c. is constructed with a tubular outer gapped ring 10 within which a ring or disk 13 formed with a recess 14 is mounted to slide so that the recess and the gap 12 can be alined to receive the chain and then moved out of alinement, in which position the ring is retained by a projection 17 thereon entering the gap. The ring 13 may be formed from a wire or a plate, and the recessed part has its sides reduced in thickness to extend through a slot 11 in the outer ring. The construction prevents the outer ring from spreading and secures a frictional grip between the rings.
Patent GB-1024172-A (GB)
Title: High molecular weight polymers
Inventor: BURROWS HAROLD GEORGE
IPC: C08F20/54
Filed: 1961-07-11
Abstract: Water-soluble high molecular weight polymers are made by homopolymerizing or copolymerizing acrylamide and water-soluble N-alkyl and C-alkyl derivatives thereof in an aqueous medium under oxygen-free conditions in the presence of an azo initiator, e.g. azobis isobutyronitrile.  The aqueous medium preferably has a pH of 3 to 7.  The examples describe homopolymerizing acrylamide and copolymerizing acrylamide and methacrylamide.
Patent GB-1012558-A (GB)
Title: Organopolysiloxanes
IPC: C08G77/00
Filed: 1964-06-17
Abstract: A siloxane of the formula <FORM:1012558/C3/1> wherein n has a value of from 0.15 to 0.5, can be made by subjecting vinyltrichlorosilane to methanolysis, partially hydrolysing and condensing the methanolysis product and neutralizing the resulting product. Examples are given.  Uses:  for water-proofing particulate materials. Example 4 illustrates the use of these siloxanes in the coating of white roofing granules for making asphalt shingles.  Specification 771,844 is referred to.
Patent GB-251323-A (GB)
Abstract: 251,323. Hay, G. S. Jan. 1, 1925. Emulsions, making.-A bituminous paint &c. is made by breaking down a bitumen in water emulsion, adding a bitumen solvent, and agitating the mixture until re-emulsification occurs. The original emulsion is preferably broken down by adding thereto a proportion of a bitumen solvent such as naphtha, kerosene, benzine or trichlorethylene, and agitating the mixture. The remaining proportion of solvent, which in total should be 10-40 per cent bv volume of the emulsion, is then added, and agitation continued until re-emulsification occurs. The final emulsion is probably a water in bitumen one. Mixed solvents may be used, and the addition of solvent may be continuous. The emulsion may be broken down by the addition of salts such as calcium or sodium chlorides, potassium iodide, or by caustic soda, or acids, by freezing, by heating and agitation, or by the passage of an electric current. Linseed or other drying oil, shellac, cellulose acetate or other drying or thickening agents may be added. The process is particularly applicable to emulsions made by the process described in Specification 202,021, but may be applied to any aqueous emulsion of solid bituminous material such as Mexican asphalte, artificial petroleum bitumens or pitches, or liquid tars, pitches, &c. or mixtures thereof. The Provisional Specification states that the process may be applied to bituminous emulsions made as described in Specifications 202,235, 229,361, 230,177, 233,430, 233,784, 236,641, and 243,398.
Patent GB-665915-A (GB)
Title: The manufacture of the ortho sulphinic derivative of methyl benzoate
Filed: 1948-09-28
Abstract: The orthosulphinic acid derivative of methyl benzoate is made by mixing an aqueous solution of a diazonium salt of methyl anthranilate with sulphurous anhydride and injecting the mixture by means of a gas (preferably excess of sulphurous anhydride) into a stirrer vessel where the diazonium salt is decomposed in the presence of activated copper at a temperature of 10-30 DEG  C.  The excess of SO2 is preferably recovered by washing it with the incoming diazotized compound solution.  The process may thus be operated continuously, and the activated copper recovered and re-used.
Patent GB-899559-A (GB)
Title: Process for the preparation of purified lipoid
IPC: A61K39/39
Filed: 1959-07-23
Abstract: A pure lipoid is prepared from a crude lipoid obtained by hydrolytically cleaving a lipopolysaccharide of a species of bacteria of the family Enterobacteriaceae, by extracting the crude lipoid with an alkyl ester of a C1-5 fatty acid, taking up the ester-insoluble residue in a solvent therefor, adding a large excess of a C1-5 aliphatic alcohol to the solution, separating and discarding the resulting precipitate, and working up the solution, if desired after concentration and addition of water, by precipitation or concentration by freezing to obtain the pure lipoid, which is then dried.  Suitable solvents for the esterinsoluble residue are secondary and tertiary amines (which may be cyclic), tetrahydrofuran and benzene.  The products have anti-bacterial activity, and may be administered by injection of oily or colloidal aqueous solutions thereof. Specification 725,938 is referred to.
Patent GB-422804-A (GB)
Title: Improved manufacture of higher aliphatic tertiary alcohols
IPC: C07C29/00
Filed: 1933-09-13
Abstract: Higher tertiary alcohols are prepared by treating vegetable fats or oils with aliphatic or aliphatic-aromatic chlorine or bromine Grignard compounds.  The reaction may be effected in an aliphatic ether, e.g. diethyl, dibutyl or diamyl ether, or in another inert solvent in the presence of a tertiary amine. Examples are given of the preparation of alcohols from (1) palm kernel oil and ethyl magnesium bromide; (2) coconut oil or palm kernel oil and methyl magnesium bromide; (3) soya bean oil or palm kernel oil and butyl magnesium chloride; (4) palm kernel oil or soya bean oil and benzyl magnesium chloride; (5) olive oil or cottonseed oil and ethyl magnesium chloride; (6) linseed oil, wood oil, soya bean oil, rapeseed oil, palm kernel oil or castor oil and methyl magnesium chloride or bromide.  Reference is made also to the treatment of palm oil and the use of propyl magnesium bromide.
Patent GB-381309-A (GB)
Title: Improvements in light weight motor cycles
IPC: B62M9/00
Filed: 1931-09-09
Abstract: 381,309. Motor cycles. BUTT, E. E. W., 3, Orme Court, London. Sept. 9, 1931, No. 25341. [Classes 79 (ii), 79 (iii), and 136 (iii).] In a light motor cycle, the engine is suspended from the front down tube of the cycle frame, with its shaft extending rearwards, and the bottom bracket of the frame is formed as a gearbox, which contains a large-ratio worm reduction gear and has a forwardly-extending sleeve surrounding the engine shaft, so as to fix the position of the engine and ensure alignment between the engine and worm shafts. The construction is particularly applicable to a motor cycle having alternative pedal propulsion and a worm and worm wheel transmission as described in Specification 381,310. The bottom bracket 1 is a drum-shaped malleable iron casting having sockets 4, 5 for the frame members 6, 7, and a rearward extension 8 with sockets 9 for the rear forks. The engine assembly 10 is suspended by a hanger 11 from a collar 12 on the frame member 6 by means of a removable pivot pin 13, and the engine shaft 14 is coupled by a dog-clutch 16 to a shaft 15 carrying a worm 2. A sleeve 18 is secured in an annular projection 17 on the casing 1, and at its forward end is split and either screw threaded to receive a nut or provided with a contracting clip 19 whereby it is secured on a bush 20 on the engine casing; thus ensuring alignment of the shafts 14, 15 and permitting ready removal of the engine. The casing 1 is closed by a cover 32, and is provided with ball bearings for the pedal shaft 25, a driving-sleeve 30 secured to the sprocket wheel 31, and a worm wheel 3 meshing with the worm 2, the sleeve 30 being driven through ratchet clutches either from the worm wheel 3 or the pedal shaft 25. In the rear of the cylindrical wall of the casing is mounted the casing 37 of a magneto and also a thrust ball bearing 40 for the end of the worm shaft.
Patent GB-426038-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B23/00
Filed: 1934-09-03
Abstract: 426,038. Sewing-machines. MAUSERWERKE AKT.-GES., Oberndorf-on-Neckar, Germany. Sept. 3, 1934, No. 25354. Convention date, Oct. 2, 1933. [Class 112] The work supporting arm 5 of a sewing- machine is at right angles to its supporting arm 3 and the arm 7 carrying the needle actuating mechanism forms a triangle in plan with the before mentioned arms. In the form shown in Fig. 3, the work supporting arm 5 terminates below the bracket 8 on the arm 7. The bracket 8 contains the needle bar 13 which is reciprocated by a link 21<a>, bell-crank lever 21, and rocking shaft 11. The shaft 11 is rocked by a lever 10 actuated by a rod connected to a crank on the main shaft which is housed on the arm 3. The other arm of the bell-crank 21 has a curved part 22 which moves between needle thread guides 18<a>, 18<b> to pull off or take up needle thread 17 supplied from the tension devices 15. The under threads 16 are supplied from the tension devices 14. In the form shown in Fig. 8, the needle reciprocating arm 24 is pivoted on a pin 30 carried in bushes 31, and is external to the diagonal arm 23. The needle thread is pulled off or taken up by the rising and falling movements of guides 28<a>, 28<b>, situated on either side of a fixed guide 29.
Patent GB-744472-A (GB)
Title: Improvements in or relating to thermo-setting compositions
Inventor: ARMITAGE FRANK
IPC: C08G59/16
Filed: 1952-11-10
Abstract: A thermoset copolymer is made from a mixture of a cinnamic acid ester or partial ester of an epoxy resin which is the reaction product of a polyhydric organic compound, e.g. diphenylol propane, and a polyfunctional etherifying agent, e.g. epichlorhydrin, and a copolymerizable ethylenically unsaturated monomer such as styrene and its nuclear halogen substituted derivatives, vinyl toluene, alpha-methyl styrene, acenaphthylene, methyl acrylate and methacrylate, acrylonitrile, and vinyl acetate; also present may be cross-linking agents such as divinyl benzene, allyl esters of polycarboxylic acids, cinnamic acid esters of saturated or unsaturated polyhydric alcohols, and maleic anhydride.  The preferred copolymerizable monomer is styrene which may be used in admixture with other monomers.  The epoxy resins used, in addition to being esterified with cinnamic acid, may be partially esterified with a minor proportion of saturated or unsaturated fatty oil acids, which in the case of unsaturated acids may be in the form of a copolymer with styrene. The esterification is described of an epoxy resin in solution in xylene with cinnamic acid, and with a mixture of cinnamic acid and linseed oil fatty acids.  Copolymerization may be carried out by heating in the presence of a peroxidic catalyst such as benzoyl, ditert.-butyl, and methyl ethyl ketone peroxides, tert.-butyl hydroperoxide, and tert.-butyl perbenzoate; methyl aniline may be present to control the rate of reaction and reduce bubble formation, an effect also obtained by the addition of cobalt naphthenate.  Copolymerization may be carried out in situ to produce coatings and mouldings, and also in the embedment of electrical coils; if desired, the mixture may be partially polymerized before use.  Specification 744,519 is referred to. The Provisional Specification describes the use in copolymerization of cinnamic acid esters of polyhydric alcohols in general, additional examples being the cinnamic acid esters of glycerol pentaerythritol, polyvinyl alcohol, and polyallyl alcohol.
Patent GB-1022506-A (GB)
Title: Internally driven scratch brush
IPC: B21B28/04
Filed: 1964-06-19
Abstract: 1,022,506. Rotary brushes. R. F. CHRISTIAN. June 19, 1964 [July 15, 1963], No. 25435/64. Heading A4K. [Also in Division B3] In order to protect the drive and bearing of a rotary cylindrical scratch brush, of variable alignment, from the mixture of oil and scale, produced by brushing hot rolls in an alumnium plate rolling process, a drive motor and reduction gear is arranged within the tubular mandrel of the brush. The mandrel is carried by cages 10 and 11, which are rotatable on bearings 50, 51 and 30, secured to fixed stub shafts 48 and 29. A stationary tube 27 extends from shaft 29 and supports the stator of a squirrel cage type of electric drive motor (Fig 1B, not shown). Tube 27 also carries a cooling fan 12 with its own motor and a deflector 13 to direct air through axial slots 14 and along annular gap 15 to cool the drive motor. A hollow rotor shaft is mounted in bearings 23 and 22. The power leads for both motors pass through a duct in shaft 29 starting at 54A. The drive is transmitted, by reduction gearing including pinions 33, 35 and 36, to pinion 37 formed on brush drive shaft 38 which is keyed to cage 10. Oil flung from pinions 33 and 35 is caught at 40A and flows through tube 40E and the rotor shaft to bearing 23. Oil from bearing 23 flows through tubes 40E and 26 to bearing 30. Brush strip 3 is wound helically on to the mandrel and is longitudinally compressed by ring 6 and screwthreaded ring 7. Parts 29A and 49 have trunnions slidable in transverse guides by means of hydraulic rams (Figs. 3 and 4, not shown) to control the working pressure and alignment of the brush with the roll. An additional mounting frame (Fig. 5, not shown) enabling the brush to be moved axially, while rotating, may be provided. The use of a liquid coolant instead of air is referred to.
Patent GB-439435-A (GB)
Title: Improvements in the manufacture of washing preparations and the like
IPC: C11D1/66
Filed: 1934-09-04
Abstract: Washing-powders are obtained by mixing a sufficiently water-soluble polyglycerol ester containing unesterified hydroxy groups, with one or more soluble sulphates adapted to form freely flowing powders with the oily or syrupy esters.  Alkali metaphosphate and/or pyrophosphate may be added.  Suitable sulphates are those of sodium, potassium, ammonium, and magnesium. Suitable esters are the crude or purified mono-acid esters of rosin, naphthenic, and fatty acids, e.g. the acids of palm-kernel oil, with tri-, tetra-, and penta-glycerols. Preferred proportions are 2--4lbs. of sulphate to 1lb. of ester.  For example, 2lb. of sodium sulphate, \ba1/4\belb. sodium metaphosphate, and \ba1/4\belb. sodium pyrophosphate are dissolved in 2,5--4,0lb. of water at 80 DEG  C., and after cooling to 50 DEG  C., there is added 1lb. of crude ester obtained by the partial esterification of approximately penta-glycerol with 20 per cent of the fatty acids from coconut oil; the well-agitated thick cream is dried on a rotary drying cylinder.  In other examples, the cream is sprayed in hot air to obtain light and puffed particles, or part of the salts is added to the dried powder.
Patent GB-1224558-A (GB)
Title: Photographic shutter
Inventor: NOACK ROLF
IPC: G03B9/18
Filed: 1968-05-29
Abstract: 1,224,558. Photographic shutters. PENTACON DRESDEN KAMERA-UND KINOWERKE VEB. May 29, 1968, No.25650/68 Heading G2A. The subject matter is contained in Application No.25649/68, but the claims are directed to the provision of stops on the pair of levers arranged in a scissor configuration co-operating with a pin provided on one of the blades.