baber/WOPTO huggingface dataset:
Patent GB-227070-A (GB)
Title: Improvements in and relating to evaporators for refrigerating apparatus
IPC: F25B41/06
Filed: 1923-07-04
Abstract: 227,070. Groh, M. S. July 4, 1923. Evaporators; refrigerators, domestic and like. -An evaporator particularly adapted as the cooling element of a refrigerating chamber 1 upon which the condenser 5 and other parts of a compression refrigerating machine are mounted comprises a header 2 and separate U-shaped pipes 7 depending from the header. Side pipe extensions 10 of the header may have similar depending pipes, and the pipes preferably have gills 8 welded or soldered thereto and are connected by welded-on or soldered plates 9. The liquified refrigerant is admitted to the header by an expansion valve 3 and the vapour is withdrawn by the compressor through a pipe 6.
Patent GB-170557-A (GB)
Title: Improvements in refrigerating machines
IPC: F25B9/00
Filed: 1921-08-15
Abstract: 170,557. Soc. Anon. pour l'Exploitation des ProcÚdÚs M. Leblanc- Vickers. Oct. 16, 1920, [Convention date]. Refrigerating, cold-air machines and processes for.-Chambers are provided at each end of an expansion cylinder into which compressed and expanded air are admitted alternately from the cooler and refrigerator, the piston being moved by the pressure of the compressed cooled air to compress the expanded air. The piston is caused to remain stationary at the end of each stroke while an interchange of air between the chambers and cooler and refrigerator takes place, valves in the chambers and passages being timed from the shaft controlling the piston. The circulation of the air from the chambers to the cooler and refrigerator is effected by independently-operated impellers or fans, the piston not effecting any circulation of the air. A part of the expanded air is led from the refrigerator through an independent compressor to the cooler. The cycle is described with reference to pressurevolume diagrams, and the arrangement of parts is represented diagrammatically in Fig. 5. The cooler A3 and refrigerator B3, fitted with the impelling fans f<1>, f<2>, are connected with chambers E, E<1>, through timed valves a\ b<1>, a<2>, b<2>, &c. Whilst the piston is moving, all valves are closed; when the piston is held at the right-hand end of its stroke, valves a1, a2, b1, b2 are opened and compressed air is circulated between the cooler and the chamber E<1> and expanded air is circulated between the refrigerator and chamber E. When the valves are closed again, the piston is released and is forced by the pressure of the air in chamber E<1> to the left where the reverse action takes place. The chambers E and E<1> together with the piston P and valve system thus constitute in essence a motor, and the external work which must be put into the independent compressor C3, which is arranged substantially as a by-pass between the refrigerator and the cooler, is equivalent to that lost in this " powerless" motor. The control of the piston and of the valves is derived from a shaft Y, Fig. 11, which carries a cam-plate L for engagement with rollers l<1>, l<2> carried by the piston-rod P<1> to determine the intermittent reciprocating motion of the piston, and, at each end, a cam-plate W<1> for engagement with rollers v<1> carried on links connected to a sleeve I, which, on being intermittently rotated in opposite directions around the piston-rod P<1>, operates the valves. The method of determining the profile to be given to the cam-plates is described. In a modified construction the piston, instead of being retained motionless at each end of its stroke, is moved slowly by external agency or power whereby the whole mass of air coming from the refrigerator to the cooler is passed through one end chamber of a single double-acting piston apparatus and vice versa, thus also assisting the effects produced by the fans.
Patent GB-621875-A (GB)
Title: Improvements in or relating to mounts for lenses, light filters, hoods or the like for photographic cameras or other optical equipment
IPC: G03B17/12
Filed: 1946-07-19
Abstract: 621,875. Photographic lens fittings. BROWN, L. W., and CRAFT, H. July 19, 1946, No. 21647. [Classes 97 (i) and 98 (i)] A mounting to facilitate attachment of a filter, auxiliary lens, or lens hood, to the objective or other aperture of a camera enlarger, &c., comprises an apertured body receiving the filter &c., at least three arms on the body providing around the aperture locating surfaces equidistant from the optical axis, and a cam ring for displacing the surfaces equally in a direction radial to the optical axis. The body may be integral with a lens hood. As shown, a filter &c. 12 is held by a screwed retaining ring in a metal ring 10 carrying three arcuate spring tongues, the free ends of which are bent at 17 to engage over an objective mount. Rotatably mounted on the ends of the tongues is a cam ring 19 with knurled outer edge and inner edge stepped thrice as at 20 to engage the tips 18 of the spring tongues. On rotating the cam ring, the bent parts 17 of the tongues are moved radially to grip or disengage from the objective mount. The steps of the cam limit rotation of the cam in one direction; opposite rotation is limited by a stop 22.
Patent GB-917246-A (GB)
Title: Improvements in or relating to forming holes in sheets of synthetic resin bonded paper laminate
Inventor: HOCKING RONALD PERCY
IPC: B26F1/14
Filed: 1961-06-16
Abstract: 917,246. Punching apparatus. BELLING & LEE Ltd. Nov. 10, 1961 [June 16, 1961], No. 21810/61. Class 31 (2). A method of forming a hole in a sheet of synthetic resin bonded paper laminate comprises cutting a hole in the sheet by subjecting it to the action of a knife edge having the crosssectional shape of the desired hole but of slightly smaller peripheral dimension and a die of suitable size and shape and shaving the resultant hole until its dimensions are those desired, the cutting and shaving operations, being performed by a single tool operated by a pressure-applying device and in one and the same pressure stroke of said pressure-applying device. As shown, a sheet 1 has a hole formed therein by means of a punch 4 co-operating with a die 2, the punch having a dished face so as to provide a knife edge 6 and a shaving part 5. A groove 7 separates a part 8 from a part 9 of slightly greater diameter. A stripper 10 is provided. The punch instead of having a circular cross-section, as shown, may have a cross-section of keyhole shape. The sheet 1 may be heated. Two or more holes may be formed in the sheet.
Patent GB-1332402-A (GB)
Title: Thermopumps
IPC: G21C15/247
Filed: 1971-04-19
Abstract: 1332402 Brazing; welding by fusion COMMISSARIAT A L'ENERGIE ATOMIQUE 19 April 1971 [16 Feb 1970] 21861/71 Heading B3R [Also in Division H2] The various parts of a thermopump module (see Division H2) are secured together by brazing or welding. The module, Fig. 5, comprises copper blocks 8a, 8b, laminated elements 9a, 9b, 10a, 10b, and stainless steel tubes 4a, 4b and 5. The copper blocks are secured to the tubes by brazing under mechanical pressure and in vacuo using a gold foil 13 or a gold electrolytic deposit which forms with the base metals a eutectic having a low melting point. Prior to the brazing operation the tubes are sand blasted and covered with a layer of palladium to prevent oxidation. Each laminated element is made of copper or constantan laminations which may be secured together by brazing, again using gold foil or a gold deposit as the brazing metal, or by welding, Fig. 10b, (not shown) using a laser or electron beam and a clamp 24 Fig. 10a (not shown). The copper blocks 8a, 8b, and laminated elements 9a, 9b, 10a, 10b may be welded together in similar manner, Fig. 7 (not shown).
Patent GB-517531-A (GB)
Title: Improvements relating to piston packing rings
IPC: F16J9/06
Filed: 1938-07-25
Abstract: 517,531. Piston - rings. HOWELL, E. C. L. July 25, 1938, No. 21974. [Class 122 (i)] A piston ring comprises two or more flat helical strips 6 with resilient positioning means, such as the crimped ring 7 or a wire coil, between adjacent strips, the whole being located in a groove in the piston. The base of the groove may be apertured to lead oil &c. scraped from the cylinder back into the piston interior.
Patent GB-276366-A (GB)
Title: Improvements in mercury vapour rectifiers and like apparatus
IPC: H01J13/26
Filed: 1927-08-22
Abstract: 276,366. General Electric Co., Ltd., and Weintraub, E., (Assignees of Soc. Alsacienne de Constructions Mecaniques). Aug. 20, 1926, [Convention date]. Joint-making packing. -In joints for mercuryvapour rectifiers and the like of the kind comprising a grooved washer J, Fig. 3, clamped between two layers P of plastic material, each face of the washer J is provided with a hollow or hollows which, together with the faces H, I, form pockets preventing the extension of the material P during clamping, the hollows having blunt ribs N of less height than the edges K<1> - - K<4> of the hollows to compress the material P. The edges K<1> - - K<4> may be cutting ridges of height slightly less than the thickness of the layers P, parts O of which are cut off. The cathode insulator B, Fig. 1, of a rectifier is jointed to the metallic vessel A by two or more spaced concentric units each comprising such a washer F and plastic material C, D. The space F between the two units in Fig. 1 is filled with mercury which also partly or wholly fills a groove G in the part A. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a reference to Specification 271,500 and to the use of the washer described therein in the joint shown in Fig. 1, and also to the use of fibre or other substance with a cellulose base or hard rubber or asbestos as the packing material. This subject-matter does not appear in the Specification as accepted.
Patent GB-692872-A (GB)
Title: Improvements in or relating to means for applying adhesive to labels in labelling machines
IPC: B65C9/22
Filed: 1950-09-07
Abstract: <PICT:0692872/III/1> <PICT:0692872/III/2> A labelling machine comprises a member moving in concert with the label in its transfer from a stack, past adhesive-applying means to a labelling station, carrying a cam which moves a cam follower, and thus rotates, e.g. by rack and pinion, an adhesive-feeding roll to transfer adhesive from a tank to an adhesive-applying roll, against which the label is wiped during its transfer movement.  A label is downwardly removed from a carrier 14, Fig. 1, by a suction device 15 carried by a crosshead 17. As the latter descends the suction device 15 is rotated through 180 degrees about a shaft 16 by a rack and pinion 19 to hold the label in a position below it.  A cam 21 on the crosshead 17 operates on cam follower rollers 39, Fig. 3, on two adhesive-applying devices, supported on brackets 20, Fig. 1, between which the label passes. The cam follower roller 39 is attached to a spring-loaded rack 36 sliding in a horizontal guideway, and its movement rotates a pinion 29, Fig. 1, and so rotates a roller 26, Fig. 3, dipping in adhesive in a tank 23, and in contact with an applying roller 34 of smaller diameter, thus coating the roller 34.  As the label passes between the two adhesive-applying devices, its ends are wiped against the applying rollers 34.  The label is then stuck on an article, such as a bottle, on a labelling station 11, Fig. 1.
Patent GB-1102094-A (GB)
Title: Improvements relating to high speed switching
Inventor: FIELDEN JOHN ERNEST
IPC: H03K17/97
Filed: 1964-05-28
Abstract: 1,102,094. Switching systems for heating apparatus. FIELDEN ELECTRONICS Ltd. 27 May, 1965 [28 May, 1964], No. 22072/64. Heading H2H. [Also in Division G3] A high-speed switching system comprises a series of coils past which is rotated a permanent magnet so as to induce a voltage in each coil as the magnet passes it, each voltage so induced being applied to an associated solid state switching device so as to render it conductive to control its associated circuit. More than one bank of coils may be provided, whereby two or more switching operations may be effected simultaneously and the switching devices may be transistors.
Patent GB-911468-A (GB)
Title: Sprocket chain, especially for transport devices in photographic processing tanks
IPC: F16G13/07
Filed: 1960-06-23
Abstract: 911,468. Chains. AGFA A.G. June 23, 1960 [June 26, 1959], No. 22089/60. Class 24. [Also in Group XXX] A chain has links 22 made of mouldable resilient synthetic plastic. The arms 22a of each link can be sprung into and out of engagement with the joint pin 21 of the adjacent link. The links may be formed with integral pockets 25 to receive transversely extending battens of a conveyer (see Group XXX). The ends of the battens are an interference fit in the pockets. The plastic may be a self-lubricating thermoplastic and may be polycarbonate or polypropylene.
Patent GB-797391-A (GB)
Title: Organotitanium compounds
IPC: C07F7/00
Filed: 1956-07-17
Abstract: The invention comprises diol acyl esters of titanic acid comprising quadrivalent titanium co-valently bonded with organic groups only, the organic groups consisting of diol, acyloxy or alkoxy groups, the diol group consisting of saturated or unsaturated straight- or branched-chain groups, the two hydroxyl groups in the diol groups being attached to carbon atoms separated from each other by not more than 3 carbon atoms, the acyloxy group being derived from a saturated or unsaturated aliphatic or aromatic monocarboxylic acid having from 2 to 20 carbon atoms the alkoxy group containing from 2 to 18 carbon atoms and the diol acyl ester containing from 1 to 3 diol groups and from 1 to 3 acyloxy groups.  "Titanic" acid is meant to include both orthotitanic acid and the condensed forms of orthotitanic acid, such, for example, as metatitanic acid.  When more than one diol or acyloxy groups are present in the product they may be the same or different. The esters are prepared by reacting acyl titanates with diols.  The acyl titanates may be prepared by the reaction between an alkyl titanate and an organic acid or by the reaction between a tetravalent titanium compound, such as TiCl4, and an organic acid or the sodium salt of an organic acid.  The acyl group of the titanate employed is derived from an acid containing only one carboxylic group and from 2 to 20 carbon atoms and it may be saturated or unsaturated and aliphatic or aromatic.  In the examples: (a) di (2-methylpentanediol-2,4) butyl stearoyl titanate is prepared by adding 2-methylpentanediol-2.4 to a butanol solution of tributyl stearoyl titanate obtained by adding stearic acid to butyl titanate; (b) a condensed 2-methylpentanediol-2.4-stearoyl titanate is prepared by warming a mixture of 2-methylpentanediol-2.4 and condensed distearoyl titanate obtained by reacting titanium tetrachloride with sodium stearate; (c) stearic acid is added to 2-ethylhexyl titanate and the tri-2-ethylhexyl stearoyl titanate so formed is added to 2-methylpentanediol-2.4 to give di(2-methylpentanediol-2.4)-2-ethylhexyl stearoyl titanate; and (d) tri - (2 - methylpentanediol - 2.4) stearoyl titanate; (e) di-(butanediol-1.4) butyl oleoyl titanate; (f) di-(propylene glycol) butyl stearoyl titanate; (g) di-(3.6-dimethyl-4-octynediol-3.6) butyl stearoyl titanate; (h) di-(2-methylpentanediol-2.4) butyl benzoyl stearate; (j) di-(2-ethylhexanediol-1.3) acetyl titanate; (k) di-(2.2.4-trimethylpentanediol-2.4) myristoyl titanate; (1) 2-methylpentanediol-2.4-butyl distearoyl titanate; (m) di-(2-methylpentanediol-2.4) distearoyl titanate; (n) di-(2.5-dimethylhexanediol-2.5) stearoyl titanate and di-(2.5-dimethyl-3-hexynediol-2.5) stearoyl titanate are all formed by analogous methods.  The product of (d) is treated with water and heated to give a condensed diol acyl titanate.
Patent GB-320966-A (GB)
Title: Improvements in or relating to automatic weighing and weighttotalising apparatus
IPC: G01G23/18
Filed: 1928-07-31
Abstract: 320,966. Denison & Son, Ltd., S., and Lenton, A. July 31, 1928. Counting-apparatus with variable-step movement.-In totalizing-mechanism for weighing- apparatus of the conveyer type described in Specifications 9339/95 and 3351/09, [both in Class 143, Weighing-apparatus], means are provided for varying the initial position of the measuring-sector relative to the steelyard, and the extent of movement permitted to the member, whereby a standard form of totalizing-mechanism may be adapted for use with weighing-apparatus of varying capacities. As shown, the measuring-sector 22 is supported by an arm 22<a> bolted to a carrier 23 that is provided with a series of spaced bolt holes 23<a> to allow for adjustment of the initial, position of the sector. The carrier is rigidly attached to a clutch member 24 and is provided with a depending arm 23<c> connected through a link 28 and bellcrank 29<a>, 29<b> to an operating cam 30. The points of attachment of the link to the arms 23<c>, 29<a> are adjustable to vary the throw of the sector. The sector is connected during its return movement to a totalizer 27 through the engagement of clutch members 24, 31. The totalizer is connected to the clutch member 31 through a spindle 26, transverse plate 26<a> and spaced set-screws 34. A certain amount of play is allowed between the plate and the screws to compensate for the initial clearance between the measuring-sector 22 and the steelyard 11.
Patent GB-1273937-A (GB)
Title: Preparation of fried potatoes
Inventor: WEAVER M L
IPC: A23L19/18
Filed: 1971-04-19
Abstract: 1,273,937. Fried potatoes. M. L. WEAVER & E. HAUTALA. 19 April, 1971 [24 June, 1970; 24 July, 1970], No. 22259/71. Heading A2E. A process for preparing fried potatoes comprises the steps of contacting peeled potatoes, for example in the form of strips or slices, with a liquid refrigerant so that the surfaces only are frozen, thawing and leaching the frozen potatoes by contacting with water, for example at 50-65‹C for 1-5 minutes, and thereafter frying, for example pan frying, the thawed and leached potatoes.
Patent GB-487109-A (GB)
Title: Improvements in hand-trucks
IPC: B62B3/00
Filed: 1937-08-16
Abstract: 487,109. Hand trucks. LOEF, J. Aug. 16, 1937, No. 22496. [Class 108 (i)] In a hand truck in which the fron wheel swivel is provided with a bearing plate which may rotate with respect to the frame, the bearing plate is provided with a transverse groove which may be engaged by a cross-bar on the lower end of a king pin to which the draw bar is pivotec so that the draw bar may be opera tively connected to the swivel for steering purposes. The truck com prises a frame 1, upright 6, floor 5 and ends 7. To the front end is secured by a bracket 10 a journal 11, 12 within which is adapted to rotate a hollow king-pin 26. Pivoted at 31 to the upper end of the king-pin 26 is a draught and steering handle 32 having a nose 34 adapted to coact with a spindle 36 slidable against a spring 29. To the lower end of this spindle 36 is secured a bar 40 which may enter slots 28 in the lower end of the king-pin and 25 in the bearing 23 of the front wheel axle, this bearing 23 being rotatably mounted on the journal 11, 12. When the handle 32 is placed vertically, the spindle 36 is depressed, forcing bar 40 out of the slots in the king-pin 26 and bearing 23 allowing the latter to swivel independently. When, however, the handle is lowered for draught purposes, the spindle 36 rises under spring pressure and the bar 40 locks the wheel bearing 23 to the king-pin 26 so that the handle 32 may then be used for steering purposes. Specification 368,165 is referred to.
Patent GB-943227-A (GB)
Title: Photographic reproduction
IPC: C08F244/00
Filed: 1960-06-28
Abstract: Polymers of aromatic compounds containing polymerizable double bonds in rings attached to aromatic nuclei, e.g. acenaphthylene, dehydro-ace-anthracene and dehydro-ace-phenanthrene (but not polyindene) are made by heating the monomers alone or with catalysts such as peroxides, azo compounds or boron trifluoride. The aromatic compounds may be substituted by alkyl, alkoxy, acyloxy, hydroxy, amino or dialkylamino groups.  Copolymers may be made of the above with themselves or with vinyl-substituted mononuclear aromatic compounds or with heterocyclic compounds containing polymerizable -CH:CH- groups in a ring, e.g. coumarone. Examples are given of the preparation of polyacenaphthylene and a copolymer of acenaphthylene and styrene.  Photoconductive compositions of the above polymers may also contain dyestuffs (a number mentioned), pigments (e.g. ZnO, TiO2), electron-accepting substances as activators and other resins, e.g. ketone resins.  Suitable activators are compounds having strongly polarizing groups such as cyano, nitro, halogen, keto, quinone, ester, acid or anhydride.
Patent GB-165470-A (GB)
Title: Improvements in methods of, and means for reducing the lagging current on a.c. systems supplying induction motors and the like
IPC: H02J3/18
Filed: 1919-09-15
Abstract: 165,470. Barry, H. A. L., and Taylor, A. M. Sept, 15, 1919. Addition to 152,703. Dynamos and motors combined for transmitting power; systems depending on the use of static trans formers.-In the method of improving the power factor of alternating-current systems as described in the parent Specification, the compensating-currents are transmitted over the existing power mains in the manner described in Specifications 151,294 and 158,008. The sub-station transformers SDT, Fig. 1, are provided with auxiliary windings MC supplied over existing three-phase mains 3PC from a motor-generator SMG or a separate generator TA and a phasing transformer PT. In the modification shown in Fig. 2, current from a phase-adjusting transformer PAT is supplied over existing three-phase mains 3PC to the primary windings BP of auxiliary transformers the secondary windings BS of which are connected in the secondary circuits of the sub-station trans formers SDT. The compensating current may be injected into the circuits of the primary windings of the transformers SDT.
Patent GB-1183201-A (GB)
Title: Olefin Oligomerization Catalysts
Inventor: HILL THOMAS
IPC: B01J23/835
Filed: 1966-05-21
Abstract: 1,183,201. Oligomerisation catalysts. BRITISH HYDROCARBON CHEMICALS Ltd. 8 Aug., 1967 [21 May, 1966], No. 22752/66. Heading B1E. [Also in Division C5] Oligomerisation catalysts are made by treating an activated carbon on which CO is deposited, at least some of the CO being in the form of the metal, oxide or hydrous oxide, with an oxidising anion (i.e. an anion containing an element of Groups IVA, VA, VIA or VIIA) on the corresponding anhydride followed by heating the carbon to a temperature of 200-600‹C in vacuo or an inert atmosphere. Specified oxidising anions are vanadates, pervanadates, chromates, molybdates, tungstates, manganates, permanganates, stannates or persulphates. Inert gases mentioned are nitrogen, oxygen and helium.