baber/WOPTO huggingface dataset:
Patent GB-1502015-A (GB)
Title: Dry-film photoresist elements
IPC: G03F7/11
Filed: 1975-02-05
Abstract: 1502015 Dry-processing photo-resist elements MacDERMID Inc 5 Feb 1975 [8 March 1974] 4912/75 Heading G2C A dry-processing photo-resist element comprises (1) a transparent cover film, (2) a photopolymerizable layer containing (a) at least one polyfunctional polyethylenically unsaturated ester monomer or prepolymer, (b) at least one halogenated polyolefin completely miscible with ester (a), (c) at least one completely miscible organic ester promoter of selective adhesion of polymerized and unpolymerized portions of the layer selected from alkyl acrylates, dialkyl itaconates, dialkyl maleates, dialkyl sebacates, dialkyl succinates and dialkyl phthalates, wherein the alkyl groups have up to about 20 carbons, diallyl phthalate and polyol diacrylates, and their mixtures, and (d) at least one photo-sensitizer, and (3) a substrate adhered to the surface of the photopolymerizable layer opposite to the surface in contact with the cover film, the cover film and the substrate each having a different degree of adhesion to the photopolymerizable layer. Polyethylenically unsaturated esters include acrylic, methacrylic and itaconic esters of aliphatic polyhydric alcohols, especially pentaerythritol triacrylate, halogenated polyolefins include chlorinated polyethylene and chlorinated polypropylene. In use the element comprises the photopolymerizable layer sandwiched between the cover film and a protective backing sheet. The backing sheet is stripped away, the photopolymerizable layer is applied to a substrate and imagewise exposed through the cover film. After the exposure the cover film is removed taking with it all of the unexposed (or uncured) portion of the photopolymerizable layer and leaving the exposed portion adhering to the substrate. No additional processing is necessary.
Patent GB-785720-A (GB)
Title: Improvements in or relating to measuring heads for gauges
Inventor: LOXHAM JOHN
IPC: G01B13/00
Filed: 1955-02-18
Abstract: 785,720. Linear-dimension gauges. SIGMA INSTRUMENT CO., Ltd. Jan. 16, 1956 [Feb. 18, 1955], No. 4934/55. Class 106 (2). A measuring head for gauges comprises a base member 1, Fig. 1, a floating member 5 supported therefrom and carrying an anvil 2, adjustably fixed contacts 25, 29, Fig. 3, and movable contact means 21 arranged to move in accordance with the displacement of the floating member 5 to encounter the contact 29 if the gauged dimension is of, or greater than, a first predetermined amount and to contact the contact 25 if the gauged dimension is of, or less than a second predetermined amount as in Specification 594,450, a conduit 46 leading to an orifice 48, and a needle 38 co-operating with the orifice and moved in accordance with the displacement of the floating member as in Specification 724,228 to indicate the amount by which the gauged dimensions are greater or less than the above-mentioned predetermined amounts. The floating member 5 is secured to the base by means of springs 6, 7 arranged as in Specification 780,871, [Group XXIV]. The movable contacts are secured to a blade 21 fixed to a channel member 20 attached at its lower end to a lever 16 pivoted on a shaft 17 and having a sapphire 18 engaging a knife edge block 19 engaged by the floating member 5. Screws 5B are provided by which the point of contact of the knife edge on the sapphire 18 may be varied to adjust the angular position of the channel member 20. The movements of the floating member 5 are communicated to the needle 38 by means of a block 39 having a knife-edge engaging a sapphire 37 on a lever 34 pivoted at 35 whose other arm has a sapphire 36 forming a bearing for the lower end of the needle 38. The block 39 may be vertically adjusted by screws 53 and shifted laterally by an adjusting screw 52. Specification 724,205 also is referred to.
Patent GB-935731-A (GB)
Title: Separation of lithium from lithium bearing micas and amblygonite
Inventor: FREVEL LUDO CARL
IPC: C22B26/12
Filed: 1962-02-09
Abstract: Lithium values are recovered from lithium-bearing micas and amblygonite, but not spodumene, by treating the particulate ore with sulphur trioxide at at least 600 DEG C. to form lithium sulphate which is water-extracted.  The sulphur trioxide may be catalytically formed during or prior to the reaction by passing a mixture of sulphur dioxide and oxygen either over a platinum on silica gel catalyst at 450 DEG C., or directly into the reaction vessel at at least 600 DEG C.  The sulphur trioxide may be carried by any gas which is inert under the reaction conditions.  The lithium sulphate solution may then be titrated with barium chloride to yield lithium chloride which is filtered off from the precipitated barium sulphate, evaporated to dryness and then extracted with n-amyl alcohol, pure lithium chloride being obtained by evaporation of the alcohol.
Patent GB-785977-A (GB)
Title: Improvements in or relating to flame resistant film-forming composition
Inventor: MOD GEORGE W
IPC: C09D5/18
Filed: 1954-02-20
Abstract: A flame-resistant film-forming composition comprises (a) finely-divided particles selected from amino-aldehyde resins, oil seed meals and casein; (b) finely-divided ammonium phosphate; (c) a film-forming water-insoluble amino-aldehyde resin soluble in an organic solvent, in combination with an alkyd resin; (d) an organic liquid which is a solvent for (c) but not for (a) or (b); and, if desired, (e) a pigment.  The aminoplast resin used as (a) is preferably a water-soluble urea-formaldehyde resin.  The film-forming aminoplast specified is a butylated urea-formaldehyde resin dissolved in a mixture of xylol and butanol or in a high-flash naphtha; and the alkyd is a medium oil length styrenated alkyd.  Mineral spirits is used as solvent, and dispersing and plasticizing agents such as soya lecithin, pine oil, tricresyl phosphate and aluminium stearate may be added.  The addition of reactive pigments enhances the flame retardant property, and suitable pigments are zinc sulphide, e.g. in the form of lithopone, and the sulphides of lead, iron and cadmium. These react with the available phosphoric acid, when heat is applied, to give hydrogen sulphide.  Other, inert pigments, e.g. titanium dioxide, may be added.  The ammonium phosphate may be the monoor di-derivative.  Instead of the solid u-f resin, there may be substituted melamine-formaldehyde or dimethylol-urea resins.
Patent GB-1347625-A (GB)
Title: Diphenol preparation
IPC: C07C39/08
Filed: 1972-02-03
Abstract: 1347625 Preparation of dihydric phenols BRICHIMA SpA 3 Feb 1972 [17 July 1971] 5093/72 Heading C2C Catechol and hydroquinone are prepared by hydroxylating phenol with H 2 O 2  in the presence of a catalyst comprising trifluoroacetic acid or an acid having a pKa from 0À7 to 3 and in the presence of a monocarboxylic acid having 1 to 4 carbon atoms. Preferred acids of pK 0À7 to 3 are mono-, di-, or tri-chloroacetic acids, oxalic acid, phosphoric acid, benzene sulphonic acid or toluene sulphonic acid.
Patent GB-674780-A (GB)
Title: Improvements in a method and a device for manufacturing pre-stressed concrete girders
IPC: B28B23/04
Filed: 1950-02-28
Abstract: 674,780. Moulding pre-stressed concrete girders. DELCOURT, M. F., DELCOURT, H. G., and TIMMERMAN, M. E. L. Feb. 28, 1950 [March 8, 1949], No. 5101/50. Class 87(ii) [Also in Group X] Wires 13 are passed through holes 11 in the end walls 6 of the moulds and are tensioned between abutments 3. The wires are then secured to the end walls of each mould by wedges 15, and the wires cut between the moulds. The moulds are run along a roller track to a table 17, where side walls having liners, Fig. 5, (not shown) are assembled on the moulds. Concrete is cast in the moulds and then the moulds are vibrated on a table 19. The concrete may be cast on the vibrating table. The length of the moulds may be varied by adjustable plates 7. Wedges 16 may be placed between the moulds and between the moulds and the abutments to prevent movement of the moulds when the wires are cut.
Patent GB-1387106-A (GB)
Title: Overcurrent relays
IPC: H01H51/27
Filed: 1973-02-01
Abstract: 1387106 Electromagnetic relays MOSKOVSKY ORDENA LENINA ENERGETICHESKY INSTITUT KRASNOKAZARMENNAYA ULITSA 1 Feb 1973 [27 March 1972] 5106/73 Heading H1N A hermetically sealed overcurrent relay has a central conductor 15 extending therethrough, magnetically operable contacts 2, 3 mounted on contact springs 4, 5 and embracing the central conductor, two permanent magnets 7, 8 embracing the contacts and being adjustable relative thereto with their like poles facing each other. The envelope 6 for the contacts may be annular, as shown, with the conductor at its centre or cylindrical as in Specification 1,216,420 with the conductor sealed therein. The springs 4, 5 may be supported at opposite ends of the envelope (Fig. 5, not shown). With like poles facing each other adjustment of the magnets allows a greater setting range. In Fig. 2, the permanent magnets oppose inward movement of the contacts whilst in Fig. 4, the magnets oppose operating flux in one control gap whilst adding to that in the other. Adjustment between these two positions by rotation is preferable to axial magnet adjustment.
Patent GB-880397-A (GB)
Title: Screw and nut means for forming an adjustable abutment within a fluid-tight container
Inventor: DRORI MOSHE
IPC: F16B35/00
Filed: 1959-02-16
Abstract: 880,397. Joint-making packing. C.A.V. Ltd. Feb. 5, 1960 [Feb. 16, 1959], No. 5249/59. Class 122 (3). [Also in Group XXV] A screw 3 engaging a screwed hole through the wall 4 of a fluid-tight container is locked in position by a nut 6 formed on its bearing face with an annular rib 7 and a recess 8 spaced radially from the rib and receiving a rubber or like sealing washer 9. In its free state the washer has an inner diameter less than the thread crest diameter and, when the nut is tightened the washer is squeezed both into the threads of the screw and into the space between recess and rib. The ring may be bonded to the nut.
Patent GB-320593-A (GB)
Title: An improvement relating to golf clubs
IPC: A63B57/00
Filed: 1929-02-16
Abstract: 320,593. Stanton, H. F. Feb. 16, 1929. Golf appliances.-A device for carrying peg golf tees comprises a head adapted to be secured to the upper end of a golf-club shaft and having a number of passages that extend therethrough and communicate with passages of less diameter in a resilient pad the upper ends of the passages in the head being countersunk to receive the heads of the tees. As shown, a head 2 having countersunk passages 9 is secured to the end of a golf-club shaft 7 by a sleeve 3. The shanks 10 of peg tees extend through the passages 9 and are held by a resilient pad 4 of felt, rubber, &c., into small passages 15 in which the shanks enter.
Patent GB-291153-A (GB)
Title: Improvements in or relating to the means for introducing and removing goods into or from the working chambers of furnaces
IPC: F27B17/00
Filed: 1927-02-25
Abstract: 291,153. Smallwood, A., and Fallon, J. Feb. 25,1927. Metal-heating furnaces; charging and discharging: crowns and roofs; removable covers.-A furnace adapted particularly lor heating long articles such as bars or tubes is provided with a removable roof or cover b, and the internallyheated hearth a is formed with a number of transverse grooves in which are located conveyers k serving, when the roof b is raised, to insert and remove the goods through the side spaces h. By the provision of a plurality of conveyers the furnace can be raised for heating short articles, which are disposed end to end. The conveyers are driven by a common shaft which is provided with a clutch at its middle point so that the shaft may either be driven as a whole from either end or half the shaft driven from its respective end when it is not desired to use the whole length of the furnace. An arm charging-machine may be employed instead of the conveyers k. The roof b is shown as suspended by chains c passing over pulleys d and carrying weights e, but it may be pivoted at one side or even fixed, in which latter case the hearth a is movable. In a further construction, the roof b and hearth a are both movable, connections being provided so that one counterbalances the other.
Patent GB-272815-A (GB)
Title: Improved driving means for conveyors and screens in coal handling plant and the like
IPC: B65G37/00
Filed: 1927-02-25
Abstract: 272,815. Norton, B. Feb. 25, 1927. Driving-gear for endless belt conveyers ; jigging conveyers.-In coal handling plant comprising a series of endless conveyers 7 and jigging screens 9 each conveyer and screen is driven from a shaft 1 by means of a clutch element 5 fast on the shaft and a member 8 which is free on the shaft and comprises a clutch element 2, pinion 3 and cam or eccentric 4. The pinion 3 drives a spur wheel 6 on the shaft of the driving drum of the conveyer and the cam, &c., 4 transmits reciprocating motion to the screen.
Patent GB-1436333-A (GB)
Title: Master cylinder unit
IPC: B60T11/16
Filed: 1973-02-02
Abstract: 1436333 Motor vehicle brakes; pedal mountings AUTOMOTIVE PRODUCTS Ltd 29 Jan 1974 [2 Feb 1973] 5339/73 Heading B7H [Also in Division F2] In a brake and clutch master cylinder unit comprising two cylinder housings 3 carried by a flange 19 having holes 21 for attaching the unit to a vehicle bulkhead, the flange 19 includes projecting pedal support parts 20 formed with respective apertures 23 for mounting the brake and clutch pedals. Each housing 3 has a bore 5 containing a piston 7 attached to a push rod 9 including a yoke 11 formed with apertures 13 for connecting the push rod to the associated pedal. As shown, each housing 3 is an interference fit in a respective sleeve portion 17 formed integrally with the flange 19 and is secured by a pin 16. In other embodiments, the cylinder housings are integral with the flange or are secured by welding or brazing either directly to the flange or to sleeves similarly secured to the flange. The master cylinder unit may be used in a dual circuit braking system, both push rods being actuatable by a single pedal.
Patent GB-216213-A (GB)
Title: Improvements in or relating to drying or moistening means for bottles or other containers
IPC: B65D51/30
Filed: 1923-02-23
Abstract: 216,213. Jansen, J. P. H., and Jansen, H. C. Feb. 23, 1923. Internal fittings.- In a bottle or container for perishable goods and provided with a detachable moistening or moisture absorbing pad, the pad 5 itself is provided with external means which engage internal means on the lid to secure is thereto. A screw threaded recess 2 is formed in the lid to receive a. screw threaded spigot 4 on the pad, the spigot being sufficiently long to ensure a clear space 6 between the pad and the lid. The pad may be perforated and a perforated plate 7 may be secured beneath it by two fixed radial arms 9 and one movable radial arm 10. Specification 216,212, [Class 49, Food &c.], is referred to.
Patent GB-683549-A (GB)
Title: Television camera
Inventor: JACKSON DONALD
IPC: H04N5/225
Filed: 1950-03-02
Abstract: 683,549. Television. PYE, Ltd. March 2, 1951 [March 2, 1950], No. 5377/50. Class 40 (iii). A portable television camera, Fig. 3, comprises a box-like casing 1 carrying a rotatable lens turret 5 and containing a television pick-up tube 7 and a monitor cathode-ray tube 22. The casing is provided with two viewing apertures 26, 27 between which is hinged a double-sided mirror 28 controlled by a knurled knob 29, the arrangement permitting the monitor tube to be viewed from above, behind or below the camera as indicated in Figs. 5a, 5b and 5c. The pick-up tube and its head amplifier 20 are carried on a sliding carriage 12 adjustable in relation to the lens in use by pinion 15 engaging toothed rack 14. The pinion is carried by a focus control extending through the side wall and disengages the rack when the wall, which is hinged along its lower edge, is swung open for servicing purposes. The lens turret is aligned correctly in relation to the pick-up tube aperture 6 by means of a spring-urged ball 8 engaging recesses on the rear surface of the turret plate 4. Fig. 1 (not shown) illustrates a harness for supporting the camera from the operator's neck. The remaining apparatus in the camera chain is accommodated in a container, similar to a large suit-case, which also contains space for receiving the camera.
Patent GB-348699-A (GB)
Title: Grinding and polishing machine
IPC: B24B5/48
Filed: 1930-02-18
Abstract: 348,699. Grinding. BSTEH, R., 26, Halbgasse, Vienna. Feb. 18, 1930, No. 5387. Convention date, Oct. 11, 1929. [Class 60.] Round holes, enlarging and trueing; spindle mountings.-A machine for grinding and polishing holes in wire drawing dies, small nozzles for spinning machinery or for insulating wires, and in other tools &c. 60 consists of a copper &c. wire w supplied with abrasive and reciprocated through the rotating work by a frame 5 .. 8 slidable on pillars 2, 3 carried by a gear casing 1. The frame members 7, 8 carry, by means of pins 10a, 11a, holders 10, 11 to which the wire is clamped adjustably by plates 17, 18 and screws 19, and the frame is reciprocated by a shaft 20, screwed into the holder 10 and moved by a cam 30 in the casing 1. The shaft 20 carries a wheel 44 having teeth 46 thereon engaged by a tooth 48 carried by a lever 47, so that at each upward movement of the frame the shaft 20 is partially rotated to feed the frame downwards : a lever 52 has a hook-shaped end 52b which may be moved to engage the upper end of the shaft 20, whereby the stroke of the frame is reduced by the thickness of the lever. The work 60 is mounted in a head 61 provided with a cap 77 to secure the work and running on ball bearings 64, 65 in a member 69 which is carried by a pin 72a, so as to be adjustable angularly, in a plate 73 adapted to be clamped to the pillars 2, 3 ; the head is driven by a pulley 62.
Patent GB-919631-A (GB)
Title: Improvements in pneumatic drying methods and apparatus
IPC: D21F3/10
Filed: 1959-02-17
Abstract: 919,631. Drying apparatus. MARK, A. Feb. 17, 1959 [Feb. 20, 1958], No. 5430/59. Class 34 (2). Moist particulate material fed by a charging device 12 to a hot air blower 1 is injected upwardly through a series of frusto-conical shaped deflectors 14 ... 17 in a drying chamber 5 in such a manner that some air on leaving the deflector 17 passes down the chamber wall entraining the heavier, i.e. mainly the undried, particles for recirculation into the main axial airstream at the lower ends of the deflectors 14 ... 16. The recirculating air is caused to spiral around the chamber 5 by an air stream tangentially introduced at 10a and bled from the main stream. Balls 27 placed in the deflector 17 may be " fluidized " to assist drying and break the particles and the dried material is discharged through a device 9 after passing through a cyclone separator 7. The deflectors 14 ... 17 are closely mounted to allow vibration thereof and the amount of material to be recirculated may be varied by vertical adjustment of a cone 22 relative to the top of the deflector 17. The drying air is heated in a generator 2 and in a modification the material may be screw-fed to the chamber 5 above the nozzle 4. Either the exhausting fan 8 or the blower 1 may be omitted. Specification 919,632 is referred to.
Patent GB-1416872-A (GB)
Title: 4-aminoquinoline derivatives
IPC: C07D401/12
Filed: 1973-02-05
Abstract: 1416872 Derivatives of 4-anilinoquinoline JOHN WYETH & BRO Ltd 22 Feb 1973 [10 March 1972 30 June 1972 21 Oct 1972 5 Feb 1973] 11251/72 30635/72 48593/72 and 5531/73 Heading C2C The invention comprises compounds of Formula (I) and their pharmaceutically acceptable acid addition salts, wherein X is halogen or CF 3 ; Z is H, C 1-6  alkyl or alkoxy, halogen, CF 3 , OH, NO 2 , NH 2 , NHalkyl or N(alkyl) 2 ;. and R is one of the groups (II), (IIIa), (IIIb) NR 3 -A-NR 1 R 2  (II) in which (a) A is possibly alkyl-substituted (CH 2 ) 1-5 ; (b) the rings are piperidine or pyrrolidine, possibly substituted by alkyl or by a divalent aliphatic chain (substituting 2 different ring-members); (c) R 1 , R 2  are each H, alkyl, aralkyl or acyl, or R 1  may be aryl, or NR 1 R 2  forms a dicarboxylic acid imide residue or a heterocyclic ring with 5-7 ring atoms; and (d) R 3  in (II) is C 1-4  alkyl, or in (IIIa) is H, alkyl, aralkyl, heterocyclyl-alkyl or an aliphatic chain joined to a further ring member. In examples, these compounds are prepared by (1) reacting the acid chloride of the compound with RH (Q=7-X-4-quinolyl); (2) reacting QCl with NH 2 C 6 H 3 ZCOR; (3) (R being 4-aminopiperidino) hydrolysing the 4-phthalimidopiperidino compound. Intermediates otherwise prepared are 1- butyl-4-piperidone oxime; 4-amino-1-butylpiperidine; 1 - benzyl - 4 - ethylaminopiperidine; 4 - diethylaminopiperidine; 3 - dimethylaminopiperidine, 3 - dimethylaminopyrrolidine; 4-phthalimidopiperidine and their N-benzyl derivatives; and 1-benzyl-3-tosyloxypyrrolidine. Therapeutic compositions for oral or parenteral administration comprise compounds of the above Formula (I), which have antimalarial activity, and in some cases antiinflammatory, antihypertensive, antitrichomonal, blood-platelet aggregation inhibition, antiulcer and/or anti-allergic asthma activity.
Patent GB-990706-A (GB)
Title: New explosive compositions
Inventor: CALDWELL WALTER ANDERSON
IPC: C06B45/32
Filed: 1963-02-11
Abstract: An explosive composition comprises ammonium nitrate and a quantity of a solid phenol-aldehyde resin such as to render the composition sensitive to a commercial detonator having a base charge of 0.24 gram of PETN or 2.0 grams of 80/20 mercury fulminate/potassium chlorate. The composition may be formed by treating ammonium nitrate granules with a solution of the resin, drying off the solvent in a stream of heated air, and heating to above 70 DEG  C. to effect polymerization and cross-linking of the resin.  In examples, ammonium nitrate is treated with an aqueous sodium hydroxide solution of phenol-formaldehyde resin, an aqueous sodium hydroxide solution of resorcinol-formaldehyde resin, and an alcohol solution of ammonia condensed cresol/formaldehyde resin.  Potassium nitrate, sodium nitrate, and aluminium are included in some of the compositions. Other optional ingredients referred to are anthracite and wood meal. The explosives are more easily detonated than previous ammonium nitrate compositions containing non-explosive sensitizers.
Patent GB-685095-A (GB)
Title: Process for making chloromethyl methyl ether
Filed: 1951-03-08
Abstract: Chloromethyl methyl ether is produced by feeding approximately equivalent proportions of methyl alcohol and formaldehyde into a reaction zone maintained at a temperature between 0 DEG  and 60 DEG C., while at the same time feeding hydrogen chloride into the zone in sufficient quantity to saturate the mixture; the reaction mixture is withdrawn and the layer of chloromethyl methyl ether is removed, the aqueous layer left is distilled to remove vapours of chloromethyl methyl ether, lower boiling components and some water which are mixed with the starting materials and recycled.  The formaldehyde is preferably employed in the form of an aqueous solution containing from 27 to 40 per cent by weight of formaldehyde but solid forms of formaldehyde, e.g. paraformaldehyde, meta-formaldehyde, trioxymethylene, polyoxymethylene or a -trioxymethylene may also be used.  The reaction may be carried out at atmosphoric pressure or at a pressure up to 20 lbs. p.s.i.g.  Chloromethyl methyl ether of about 95 per cent purity is obtained and this can, if desired, be further purified, e.g. by distillation.