baber/WOPTO huggingface dataset:
Patent GB-995035-A (GB)
Title: Reversal processing of photographic colour materials and developer compositions for use therein
IPC: G03C7/413
Filed: 1962-02-01
Abstract: 995,035. Photographic developers. EASTMAN KODAK CO. Feb. 1, 1962 [Feb. 1, 1961], No. 3824/62. Heading G2C. Colour developers comprise an aqueous alkaline solution of an aromatic primary amino developer which contains a hydroxyl or a second amino group, a balancing developing agent of formula R-NH-R 1  wherein R is uralhyl which may be substituted and R 1  is p-hydroxyphenyl which may be substituted by alkyl group with 1 to 4 carbon atoms, and an amine compound containing a -NH 2  group attached to a-NHCO-, -CONH-, -NH-C(=NH)-,-OH,or -NH 2  group. These developers are used in reversal three-colour processes, the amino compound removing by reaction any aldehyde formed from the balancing developer. Alternatively, in a reversal three-colour process, the amine compound may be added to the developer to remove any aldehyde left after treating the emulsion in an aldehyde hardening bath. Specified amine compounds are hydroxylamine, semicarbazide, hydrazine, carbohydrazide, biuret, aminoguanidine, methylsemicarbazide and Girard's reagent. Preferred balancing developers are those of formula wherein R 2  is phenyl, hydroxy-, chloro-, amino-, sulpho-, or ethyl-phenyl or tolyl. The balancing developers act as antioxidants for the developer and as auxiliary developers but they also react with oxidized colour developers to form Schiff's bases which hydrolyse to aldehydes. Specifications 898,005 and 904,462 are referred to.
Patent GB-1408742-A (GB)
Title: Brushgear
IPC: H01R39/38
Filed: 1974-01-28
Abstract: 1408742 Brushgear for dynamoelectric machines LUCIEN FERRAZ & CIE 28 Jan 1974 [8 Feb 1973] 03889/74 Heading H2A In a brush/brush-holder system, the outer end of a self-coiling constant pressure metallic ribbon spring 7 is secured to a plate 6 joined to a brush 3, and the brush and spring are mounted in a holder 1 such that the coiled portion 7a of the spring presses against an insulating sleeve 5 on an inclined portion 4a of a strip 4 which is fixed to the holder 1, and which protrudes through an aperture 1d therein; the reaction of the sleeve 5 thereby causes the spring to force the brush towards a rotating member 2 and also against a wall 1a of the holder. In the embodiment of Figs. 8, 9 (not shown), the sleeve 5 is mounted on a member (11) joined to a V-shaped spring (12) removably retained by two pins (13, 14).
Patent GB-1175272-A (GB)
Title: Methods of Fabricating Semiconductor Devices.
Inventor: GARBARINI VICTOR CHARLES
IPC: C25F3/04
Filed: 1967-01-26
Abstract: 1,175,272. Semi -conductor devices. WESTERN ELECTRIC CO. Inc. 26 Jan., 1967 [10 March, 1966], No.3932/67. Heading H1K. [Also in Division C7] In fabricating a semi-conductor device, an Al layer on a semi-conductor body (e.g. of Si) is electrolytically etched in an aqueous solution of tetraalkylammonium hydroxide R 4 N<SP>+</SP>(OH)<SP>-</SP> using a metal cathode so as to remove A1 from the layer. R may be methyl, ethyl, propyl or butyl. The four alkyl radicals in the compound may not all be the same but may be selected from the above radicals. As shown, a Si transistor element 10 of PNP configuration has thereon a silicon oxide mask 16, a Ti layer 17, an A1 layer 18 and a photoresist mask 19. Unmasked parts of the Al layer are electrolytically etched in a 2% aqueous solution of tetramethylammonium hydroxide at 25‹ C. The element may be suspended by metal tweezers which comprise one electrode connection. The cathode may be a Mo rod positioned one inch from the A1 surface. The electrolytic etching may be at 10,000 Angstroms per minute using 200 milliamps. Unmasked parts of the Ti layer are removed by chemical etching in a solution of dilute H 2 SO 4  and HF. Subsequently the photoresist mask is removed.
Patent GB-1514353-A (GB)
Title: Oil burner heads
IPC: F23C9/00
Filed: 1976-02-02
Abstract: 1514353 Oil burners K S H HULTGREN 2 Feb 1976 [6 Feb 1975] 3950/76 Heading F4T An oil burner head comprises a nozzle 6 at the outlet end of a fuel pipe 4 inside a shroud 7 carried by the outlet end of an air supply duct 5, and an annular air-directing member 9 surrounding the nozzle 6 and defining with the shroud 7 an annular gap 11 which can be varied by relative movement of the shroud and the member 9, the internal cross-section of the shroud varying along the axis and having a minimum value at a location between its ends, and one or more slits 12 through the shroud at said location extending around a greater part of the periphery. The or each slit may lie in a radial or an inclined plane. The member 9 has a cylindrical part for mounting on the pipe 4, and a conical part surrounding the nozzle 6.
Patent GB-555099-A (GB)
Title: Improvements in tools for inserting or withdrawing rounds of ammunition from ammunition belts
IPC: F42B39/10
Filed: 1942-03-26
Abstract: 555,099. Loading and unloading cartridge belts. BOULTON PAUL AIRCRAFT, Ltd., and HINDS, J. E. March 26, 1942, No. 4041. [Class 92 (ii)] A hand tool for inserting a cartridge 6 in or withdrawing one from a metal-link belt 5 comprises a holder 1 with abutments 3, 4 for engaging the links and a plunger 12 reciprocated in the holder by a doublehandle device 15, 16 the arms of which are pivoted to the holder and spread by spring action. The arrangement is such that, to remove a cartridge, the arm 16 is fixed in the open position by a member 23 and the plunger, which engages the rim of the cartridge by extractors 13, is then moved rearwardly by operating the arm 15. To insert a cartridge, the member 23 is operated to fix the lever 15, and the arm 16 actuated to move the plunger forwardly. The arm 16 has a groove 26 engaging a knob 14 on the plunger and the arm 15 carries a pin 20 engaging a slot 22 in the plunger.
Patent GB-335497-A (GB)
Title: Improvements relating to the rolling of metal sections
IPC: B21B1/08
Filed: 1930-02-06
Abstract: 335,497. Nolte, K. Feb. 21, 1929, [Concention date]. Rolling flanged bars. - Sections with deep flanges are first rolled to a section in which the outer parts of the flanges are bent as at b, c and then in the final pass they are straightened as at d, e or otherwise bent.
Patent GB-1442535-A (GB)
Title: Method of treating plants
IPC: C07C239/00
Filed: 1974-01-29
Abstract: 1442535 Plant growth regulation using allophanimidates E I DU PONT DE NEMOURS & CO 29 Jan 1974 [30 Jan 1973] 04125/74 Addition to 1421001 Heading C1B A method for altering plant flowering or plant sexual reproduction comprises applying an allophanimidate to the plant in an amount which is effective to alter flowering or sexual reproduction of the plant without causing substantial foliar burn, chlorosis or necrosis, the allophanimidate being a compound of either of the following formulµ wherein X 1 , X 2  and X 3  are O or S, R 2 , R 3  and R 5  are specified hydrocarbon or substituted hydrocarbon radicals, and R 6  is H or C 1 -C 3  alkyl. The preferred compounds are methyl 4-(pchlorophenyl) - N - methoxycarbonylallophanimidate and methyl 4 - (p - chlorophenyl) - N - methylthiolcarbonylallophanimidate. Particular applications specified are: preventing inbreeding of maize, altering fruit set, preventing seed development and controlling pollen. Compositions in package form also are claimed.
Patent GB-759135-A (GB)
Title: Improvements in or relating to extrusion presses
IPC: B21C23/21
Filed: 1952-02-15
Abstract: 759,135. Extruding. GENDERS, R., FIELDING & PLATT, Ltd., and ROWLES, R. V. May 28, 1953 [Feb. 15, 1952], No. 4147/52. Class 83 (4). An extrusion press constructed to operate selectively under direct or inverted flow conditions or under combined or mixed direct and inverted flow conditions, has a billet container H whose bore is of larger cross-sectional area at the billet insertion end than at the other end. The bore is stepped to provide a large diameter portion B and a small diameter portion X. For direct extrusion, Fig. 1 (not shown), the container is held stationary. by a latch E, Fig. 2, whilst the billet A is extruded by the ram C, having a dummy block P, through a die G carried by a stationary hollow ram D. For indirect extrusion the latch is released and the container then moves forwardly with the ram C and passes over the ram D, Fig. 3 (not shown). In a combined process described, a heated billet, which may be machined or a rough casting, is inserted in the bore B and, whilst the container is held stationary by the catch E, is pressed by the ram C into the bore X until it reaches the extrusion die G. The catch is then released and the container moves with the ram C, whereby the die enters the bore X and the billet metal therein is extruded through the die. For mixed extrusion the movement of the container after its release is controlled by auxiliary rams F, Fig. 4, whereby the billet is extruded partly by the direct action of the ram C and partly by movement of the container The press may be used for extruding solid bars or tubes, in which case a mandrel is fitted in the ram C. The shoulder between the two portions B and X of the container bore may alternatively be tapered or curved. The press is suitable for extruding steel and nickel alloys. Specification 660,257 is referred to.
Patent GB-306895-A (GB)
Title: Electric accumulator battery
IPC: H01M50/204
Filed: 1929-02-07
Abstract: 306,895. Accumulatoren-Fabrik Akt.- Ges. Feb. 27, 1928, [Convention date]. Cases; cells.-Accumulator cells b are fixed in an outer case a by means of bars d which extend over projecting portions c on the cells. The bars d may be secured in position by bars e engaging over the ends of the bars d and fixed by screws f to the bottom of the case a.
Patent GB-581597-A (GB)
Title: Improvements in electric contact elements
IPC: H01H1/02
Filed: 1945-02-20
Abstract: 581,597. Contact members for switches. PLESSEY CO., Ltd. Feb. 20, 1945, No. 4243. Convention date, Feb. 23, 1944. [Class 38 (v)] [Also in Groups XXXV and XXXVI] A switch contact member 10 consists of a brass base 7 plated with silver 8 over which is deposited a thin layer 9 of indium. The silver layer may have a matte surface, produced mechanically, electrolytically, or chemically, to facilitate the diffusion of the indium in the silver. Co-operating contacts 11 are of silver-plated brass or silver alloy. A thin film of organic lubricant, e.g., lanoline, may be used to prolong the life of the contact. The invention is applicable to slide-wires of variable inductances (see Group XXXV), to slip-rings and brushes (see Group XXXVI), and to make-and-break contacts, Figs. 3-5 (not shown). Methods of preparing the base metal for indium plating are set out.
Patent GB-233078-A (GB)
Title: Improvements in methods of and means for driving railway engines and the like
IPC: B61C9/22
Filed: 1924-02-19
Abstract: 233,078. Zarlatti, F. Feb. 19, 1924. Compressed-air engines.-In a compressed-air locomotive, the air is generated by an internalcombustion engine, stored in the locomotive boiler, and conducted to the cylinders through water heated by the engine exhaust. In the heater the air and exhaust gases flow in opposite directions. The smoke and fire boxes are closed and filled with water which is circulated by a pump through the fire tubes and through the jackets of the compressor and engine. This water may also be used to make up for losses in the heater. The engine 2, such as a Diesel, may drive a compressor 1 or itself generate compressed air. The boiler may be partly filled with water, which may be heated by the header 3.
Patent GB-559450-A (GB)
Title: Improvements in or relating to apparatus for receiving metal or the like from an extrusion press
IPC: B23Q7/05
Filed: 1942-03-31
Abstract: 559,450. Extruding. NORTHERN ALUMINIUM CO., Ltd., and WHITTLE, W. March 31, 1942, No. 4291. [Class 83 (iv)] Apparatus for receiving extruded metal &c. comprises three series of rollers of which the first is movable relative to the press 4, the second 12 is pivoted to and moves with the first and the third 19 is fixed relative to the press and, with the second, maintains a continuous roller table. The extruded rod &c. 3 is received by a shoe 5 which guides its end over the rollers 1, 12 and 19 and between rollers 8. At the end of the operation the die assembly D is released from the press and moved to the left, with the rollers 1, until the discard can be cut off by a fixed shear, not shown. During this movement the rollers 12, which are connected by pivoted links 13 to the carriage 9 on which the rollers 1 are mounted, move horizontally as guided by two side channels 16, each roller 12, as it approaches the fixed rollers 19, passing below these so that the whole length of the rod 3 is continuously supported. A saw 20 is arranged near the roller table 19.
Patent GB-475541-A (GB)
Title: Improvements in or relating to the casting of easily oxidizable metals
IPC: B22D17/30
Filed: 1937-02-13
Abstract: 475,541. Casting-machines. WAGNER, K. F. Feb. 13, 1937, No. 4338. Convention date, Feb. 13, 1936. [Class 83 (i)] A device for feeding a measured charge of magnesium, zinc, aluminium, or other easily oxidizable metal to the pressure cylinder 21 of a casting-machine is arranged to do this without contact with the air. The crucible 2, which may be partially exhausted, is surrounded by a furnace 1 and has a cover 7 with a chamber 24, Fig. 2, containing boxes 26 of carnallite or the like which evolves a protective gas. A perforated cylinder 3, submerged in the molten magnesium 5, has a plunger 9 moved, through a distance adjustable by nuts 16, by a fluid operated piston 12<1> to force a measured charge into the passage 6. This charge is then delivered to cylinder 21, closed by a cover 31 operated by a piston 33<1>, by a fluid operated plunger 18. The fluid operated plunger 29 then forces the metal into the mould 34 while the plunger 9 returns to the position shown. The cover 31 and plunger 18 are then returned and the residue ejected from the cylinder 21. All the movements may be under one automatic control. The crucible 2 and cylinder 21 may be partly exhausted and supplied with gas poor in oxygen and nitrogen or interconnected. In a modification, the cover 31 is stationary and has a closable opening for ejection of the residue.
Patent GB-396810-A (GB)
Title: Improvements in or relating to the manufacture of waxed papers
Filed: 1932-02-13
Abstract: A process for the manufacture of waxed paper or sheet material such as textile material consists in depositing wax in a liquid film upon the surface of a flotation medium at such a temperature as will ensure the maintenance of the wax film in liquid form, and applying the paper or other sheet to the surface of the medium so as to remove the wax film therefrom.  The wax, e.g. white wax, may be dissolved in a solvent such as petrol and used at normal temperature, or the process may be carried out at higher temperatures, e.g. 90 DEG  F. when using paraffin wax dissolved in petrol.  Single sheets may be waxed by hand, but the process is preferably applied to continuous lengths of material by using known apparatus such as that described in Specification 332,190, [Class 140, Waterproof &c. fabrics]. Pigments may be incorporated in the wax solution, and patterns may be produced by agitating the film in known manner.
Patent GB-124253-A (GB)
Title: Improvements in Propellors.
Inventor: MUIRHEAD JAMES ADAIR
IPC: B64C11/20
Filed: 1918-03-13
Abstract: 124,253. Muirhead, J. A. March 13, 1918. Screw propellers. - A propeller comprises a skeleton metal framework core or shell having embedded or consolidated with it a plastic composition. The blades may have ribs A and perforations B, Fig. 1, or ribs A and straight or expanded slots C, Fig. 2, or may take the skeleton forms, mainly composed of wire, shown in Figs. 4, 5, and 6. The core may be formed with perforations, slots, or cavities for the reception of light supplementary fillings of wire-gauze, cork, inflated tube, &c. Various forms of bosses are illustrated. Figs. 10 and 11 show examples in which the plastic filling-composition is indicated at K
Patent GB-197066-A (GB)
Title: Improvements relating to the electro-deposition of metals
IPC: C25D21/06
Filed: 1922-02-15
Abstract: 197,066. Hutchins, T. W. S. Feb. 15, 1922. Metals, depositing; electrolytes, circulating and regenerating; electrodes; diaphragms. - In the electrodeposition of metals such as iron, nickel and cobalt, means are provided to ensure that the electrolyte around the cathode is completely freed from all sclid partticles such as graphite which would form a couple with the metal being deposited. In the apparatus shown, for the deposition of iron, spent electrolyte in pumped to regenerators k, l, m of considerable length and relatively small cross-section packed with scrap or other iron. The regenerators are provided with baffleplates o and sludge-cocks q and are sealed against the entry of air by covers p. The regenerator m is steam-jacketed. The regenerated electrolyte passes through a filter n to the anode chamber of the cell a. More than one filter may be used. one of which may extract the heavier matter, the final one being of felt or earthenware alone or in conjunction with a centrifugal separator. The anode b is trough-shaped and is lined inside with a filter-cloth e. The anode may be of an insoluble metal, metal of the kind to be deposited being packed between the anode and the filter. The cathode c is cylindrical and is rotated by a pulley d. The cell a is provided with a mid-feather f forming a compartment g into which electrolyte flows by an overflow aperture not shown and along the cathode shaft, and from which it flows to the pump i. The iron in the regenerators may be replaced by a basic compound or compounds. The exclusion of air ensures the electrolyte remaining neutral without addition of alkali. The preferred electrolyte consists of 150 gms. of ferrous sulphate and 100 gms. sodium sulphate per litre of water.
Patent GB-243939-A (GB)
Title: Improvements in furnaces
IPC: F27D1/02
Filed: 1925-02-19
Abstract: 243,939. Wood, W. R., (Dctrick Co., M. H.). Feb. 19, 1925. Arches; walls.-A suspended arch for pulverulent-fuel furnaces is supported from beams which are formed in relatively short lengths and are carried by and arranged on both sides of a transverse span beam disposed a considerable distance above the arch itself. As shown, the span beam 5, which is supported on side columns 6, carries on both sides brackets 7, 7<a>, the former supporting longitudinal beams 8 and the latter transverse arch bars 12<1>; the beams 8 are secured at the front of the furnace to girders 10 carried by vertical columns 11 and support transverse bars 12. The front and rear parts of the arch are constituted by bricks 16 which are threaded on flanged bars 15 suspended from the bars 12, 12<1> by hangers 14, while the intermediate portion is formed of courses of bricks carried by transverse bars 19, 19<1> which are suspended from short longitudinal beams 18 secured between adjacent beams 12. Spaces 17 are left in the intermediate portion of the arch to accommodate pulverulentfuel burners and to facilitate replacement of the bricks 16 immediately surrounding the burners the former are separately supported on hooked brackets 21 which engage over lugs formed on the ends of the arch bars 15, 19. The apron wall 23 is supported partly on shelves 15<b> formed on the upper ends of the rear bars 15 and partly on the beams 5, 12<1>, spaced tiles 25, 26 being arranged immediately above these beams to provide channels for air circulation. Fig. 7 shows a modification in which the apron wall 23 is supported independently of the arch, the lower part of the wall, in this case, being carried on brackets 27 which hook over the. lower flange of the beam 5 and are each formed with a projection which, by engagement with the beam 5, prevents longitudinal displacement of the bracket.
Patent GB-1030412-A (GB)
Title: Sanitary pad
IPC: D04H1/66
Filed: 1963-02-05
Abstract: 1,030,412. Catamenial appliances. OTAFUKU WATA KABUSHIKI KAISHA. Feb. 5,1963 [April 13, 1962; April 14, 1962], No. 4708/63. Heading A5R. A sanitary pad is made from a folded rectangular fibrous web, the web before folding containing an adhesive in spaced stripes 2 and having perforations 3 in a central area Q, the non-perforated portions 4 of the web on opposite sides of the central area being impregnated with a water repellant substance. The adhesive may be an emulsion of vinyl acetate. A water repellant of the paraffin group is used. The web is either wrapped around a separate cotton pad or folded to form a pad, the perforate portion being disposed so that it may be placed against the wearer's body.
Patent GB-792131-A (GB)
Title: Improvements to electrostatic loudspeakers
Inventor: ELLIOTT LLEWELLYN JOHN
IPC: H04R19/00
Filed: 1955-02-17
Abstract: 792,131. Loud-speakers. PYE, Ltd. Feb. 17, 1956 [Feb. 17, 1955], No. 4787/55. Class 40 (4). In an electrostatic loud-speaker a sheet of polyethylene terephthalate which is free from pinholes is stretched over a backing plate and is coated, on the side remote from the backing plate, with a metallic layer. The sheet or film preferably has a thickness of the order of 0.00025 to 0.001 inches and in one embodiment is bonded with a film of aluminium a few microns thick and stretched across the convex surface of a rigid perforated backing plate. The diaphragm comprises a strip 20 inches by 1 inch and a D.C. polarizing voltage of from 300-500 volts is recommended.
Patent GB-638609-A (GB)
Title: Improvements in unloading valves for gas compressors
IPC: F04B39/00
Filed: 1948-02-18
Abstract: 638,609. Gas compressors. YORK SHIPLEY, Ltd. (York Corporation). Feb. 18, 1948, No. 4794. [Class 8(i)] A compressor having a ring type unloading valve comprises a cylinder sleeve 13 having inlet ports 15 and containing a piston 51 having a ring inlet valve 63. The sleeve 13 has a flange 14 secured in a housing 11 by a cylinder head 17 fitted with a ring discharge valve 26 and having a channel 31 in which slides a ring valve 32 biassed to close outlet ports 33 in the flange 14 by springs 34. The ports 33 communicate with an inlet chamber 16. The valve 32 is opened by means of pins 35 passing through the flange 14 and contacting a ring 37 rotatable in 'a groove in the sleeve 13. The ring 37 has cam faces 36 and a gap 41 to which an operating spindle is attached. The spindle is secured to a hydraulic piston and is biassed to open the valve 32 by a compression spring, the valve being closed by lubricating oil pressure acting on the piston.
Patent GB-684135-A (GB)
Title: A rotary electrical-current-collector for measuring instruments, particularly strain-gauges
IPC: G01L1/20
Filed: 1951-02-28
Abstract: 684,135. Collectors. SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES DU SUD-EST. Feb. 28, 1951 [March 11, 1950], No. 4908/51. Class 38 (i). Wires 7a, 7b which rotate with an insulating sleeve 1 are connected to a stationary cable 31 through mutually-insulated conductor rings 10, each having a peripheral groove 12 engaged by a wire 23a or 23b. The wires 7a, 7b extend through channels 28 and are connected to a respective ring 10. One end of each wire 23a, 23b is directly connected at 24 to an insulating block 15a or 15b, whilst the other end is connected through a spring 26 to the other side of the block at 25. The blocks 15a, 15b are pivoted on spindles 14a, 14b on a stationary base 13 and the points of wire connection 24, 25 are on opposite sides of the appropriate spindle, with respect to the axis of the sleeve 1, whereby pivotal movement of the blocks in the direction of arrow 33 causes the associated wires 23a or 23b to be relieved of tension to avoid unnecessary wear. The blocks may be operated by Bowden cables 20, 20a and have oiled-felt pads 19 to lubricate the rings 10. Wires 29a, 29b connect the wires 23a, 23b to the pins of a socket 30. The rings 10 and wires 23a, 23b may be of silver and hammered silver, respectively. The collector is suitable for connecting resistive-wire type strain detectors mounted on a rotary part, such as a helicopter rotor, to the indicating instruments.