baber/WOPTO huggingface dataset:
Patent GB-775379-A (GB)
Title: Improvements in and relating to automatic hydraulic cut-out valves
Inventor: WILLITT ARTHUR ADRIAN JOHN
IPC: F15B1/027
Filed: 1954-10-20
Abstract: 775,379. Fluid-pressure servomotor-control systems. DOWTY EQUIPMENT, Ltd. Oct. 11, 1955 [Oct. 20, 1954], No. 30234/54. Class 135. A valve mechanism in an hydraulic system for directing the output from a continuouslyoperating fixed-displacement pump to either the system or to a return line, comprises a pilot valve 19 having a plunger 41 subjected to system pressure in opposition to a spring 40, and a main valve with ports 28, 26, 29 connected to the pump, the system, and the return line, respectively, and with a slidable valve element 16 normally urged in the direction to connect the pump to the system by a spring 23 and system pressure acting on the smaller of two pistons 21, 22 associated with the valve element. Normally the spring 40 urges the pilot valve downwardly to connect the space 27 behind the piston 22 to the return line. On the pressure in the system reaching a value predetermined by the spring 40, the pilot valve moves upwardly to direct system pressure to the space 27 whence the main valve is moved to cut communication between the pump and the system and direct the pump output into the return line. A collar 30 in the port 26 is urged by a spring (not shown) into engagement with the valve element 16 and a recess 33 in the valve element ensures that the port 29 is opened before the port 26 is closed so as to limit valve movement and avoid complete closure of the port 26.
Patent GB-1485339-A (GB)
Title: Tape recorder/player
IPC: G11B15/02
Filed: 1975-07-18
Abstract: 1485339 Track changing FUNAI ELECTRIC CO Ltd 18 July 1975 [18 Oct 1974] 30268/75 Heading G5R In a track changing arrangement for a cartridge tape recorder the power for shifting the magnetic heads is derived from the tape drive capstan. Heads 12 are mounted on a platform 19 which is urged by spring 42 along shaft 23 to engage a cam follower screw 41 with the usual stepped cam 40. The cam 40 forms part of a rotary body 24 which rotates on shaft 23 and includes a circumferentially grooved portion 30 with groove 32 and pairs of teeth 33, 34 extending from opposite walls of the groove which co-operate with a pin 35 attached to armature 37 of track switching solenoid 36. The body 24 also includes a part circular cam 27 mounted on resilient arms 28 which can be driven by roller 25 mounted on capstan shaft 11 except when the roller is disposed in one of the cam recesses 26. With solenoid 36 de-energized the rotary body 24 is held by pin 35 engaging a tooth 33 in the grooved portion with drive roller 25 disposed in one of the recesses 26. On the solenoid receiving a track change pulse signal the pin is released from the tooth member and a flat spring 29 which is the held position of the body engages the side of a recess 26 urges the body into initial rotation to bring the circular part of cam 27 into engagement with the drive roller 25. If the solenoid releases before the body rotates through 90 degrees pin 35 moves upwards and is engaged by the next tooth 33 to hold the body with roller 25 rotating in the next recess, if release does not occur the body is held by the pin being engaged by tooth 34 until the solenoid releases it into engagement with pin 33. During the 90 degree rotation the heads 12 are moved by cam 40 to the next channel. After a complete rotation of the body 24 a projection 60 thereon engages a leg of member 59 to switch off the player. Contacts 48, 49 rotate with the body 24 and coact with a printed wiring plate 43 to selectively activate channel indication lamps (not shown).
Patent GB-1518586-A (GB)
Title: Method of repairing a gas inlet cone
IPC: F28F9/02
Filed: 1976-07-21
Abstract: 1518586 Repairing tubular members ALLIED CHEMICAL CORP 21 July 1976 [22 July 1975] 30400/76 Heading F2P To prevent egress of process gas from a metal inlet core 11 for passing gas from the outlet side of a hydrocarbon cracking heater to the tube side of a heat exchanger, at least one aperture 27 is formed in the side wall, a pressure resistant metal wall 28 spaced from but connected to the cone is provided, and the space and aperture filled with a refractory material 29 east into said space. Preferably the core has four equally spaced apertures wihch may be formed in the region of cracks.
Patent GB-919659-A (GB)
Title: An apparatus for loading articles into boxes
IPC: B65B35/40
Filed: 1961-08-23
Abstract: 919,659. Packaging machines. CASCADE FROZEN FOODS Inc. Aug. 23, 1961 [Oct. 13, 1960], No. 30472/61. Class 94(1). Apparatus for loading articles into boxes comprises a conveyer, Figs. 8-9 (not shown), supplying the articles laterally on to a loading surface 16 from which a pusher bar 18 removes them one row at a time on to an assembly plate 41 where an inverted box 86 is placed over them by hand, the box flaps effecting the upward pivoting of support fingers 56 and of the plate 41 which causes the box to be turned over and transferred to the fingers 56. The first of the articles supplied to the surface 16 touches a plate 26 which actuates a micro-switch to extend the piston of cylinder 22. The bar 18 is thereby advanced, its member 21 preventing the supply of further articles until the bar is automatically retracted. With the plate 41 fully loaded, the first row of articles actuates an element 50 to de-energise the cylinder 22 with its piston in forward position. As a box 86 is inverted over the articles with its side flaps extended downwards, one flap 87 operates a lever 71 controlling micro-switch 70 thereby extending cylinder 64 to pivot the fingers 56 upwards by means of a rack 66 and pinion 68. As the fingers 56 move beyond a vertical position, a pin 83 shifts a cam to actuate microswitch 72 which raises the piston of cylinder 57. As the plate 41 reaches a position parallel to fingers 56, flap 87 releases the lever 71 thereby returning the fingers 56. Plate 41 continues to pivot until the box is transferred to the fingers 56 when a further pin 82 actuates the switch 72 to return the plate 41. The fingers 56 deposit the box on a roller, Fig.15 (not shown), which urges it on to a removal conveyer. The fingers 56 are adjustable to handle boxes of different sizes.
Patent GB-916275-A (GB)
Title: Improvements in or relating to halogenated isocyanates
Filed: 1961-08-24
Abstract: Alkyl isocyanates having at least one halogen atom in the alpha position are obtained by reacting an alkyl isocyanate having at least one H atom in the a  position, or an alkyl carbamic acid halide having at least one H atom in the a  position, with a halogenating agent.  Halogen gas may be flowed into an appropriate alkyl isocyanate whilst the mixture is subjected to ultra-violet light until the stoichiometric required amount of halogen has been absorbed, and thereafter the resulting halogeno alkyl isocyanate is removed by distillation.  Halogen gas may be flowed into a suspension of an appropriate alkyl carbamic acid chloride while irradiating the suspension with U-V light, the reaction mixture being maintained at a temperature not exceeding 70 DEG C. during absorption of the halogen. Specified isocyanates which may be halogenated include methyl, ethyl, propyl, butyl, stearyl, cyclohexyl, b -cyanoethyl, and benzyl isocyanate; e -isocyanato p  caproyl chloride; hexamethylene diisocyanate; carboxyethyl methyl isocyanate.  Halogenation produces the corresponding a -mono or a -di-halogeno alkyl iso- or di-iso-cyanate.  Halogeno alkyl carbamyl halides may be formed as intermediate products.  These may be converted into isocyanates by heating.  The halogenating agent may be chlorine, bromine, sulphuryl chloride, or sulphuryl bromide.  During halogenation catalytically active halogen transfer agents such as ferric chloride may be present.  Solvents may also be present.  Examples describe the production of chloromethyl isocyanate, chloromethyl carbamyl chloride being formed as an intermediate and being converted to the isocyanate by heating to 120 DEG C. in a stream of nitrogen. 1.1.2.2-tetra-chloroethyl isocyanate, and a -chlorobenzyl isocyanate, and reference is made to the production of other isocyanates, including pentachloro - ethyl, a -bromo-benzyl, and a -bromo-b -chloro-ethylisocyanates, and 1.4-diisocyanato-1.4-dichlorocyclohexane.  Specification 752,931 is referred to.
Patent GB-648113-A (GB)
Title: Improvements in or relating to board games
IPC: A63F3/00
Filed: 1948-11-25
Abstract: 648,113. Board games. MUTRUX, H. G. Nov. 25, 1948, No. 30612. Convention date, Oct. 27. [Class 132 (ii)] A board game comprises two dice distinguished from one another and representing tens and units respectively, playing pieces and a board marked with sections C numbered to correspond with the numbers that can be thrown by the two dice and arranged round a centre, a passage M connecting the centre to a goal R and at least two tracks F running through the sections C to the passage M. The dice are cast by each player who then places his piece on the square bearing the number cast. The players then throw one die advancing their pieces section by section to the " ladder " M leading to the goal R. Additional unnumbered sections C may be marked on the board. In a modification a circular board has 216 numbered sections and three dice are used, one for hundreds, one for tens and one for units. The dice may be distinguished by colour.
Patent GB-1382298-A (GB)
Title: Recording of boundary flow conditions
IPC: C25D11/24
Filed: 1972-06-29
Abstract: 1382298 Indicating air-flow SIEMENS AG 29 June 1972 [7 July 1971] 30620/72 Heading G1R In a method of chemically recording boundary flow over a solid surface, such as a fan impeller, a dyeable oxide layer on the surface is obtained by an anodic oxide procedure, a gas stream which either consists of, or has entrained therein, a chemical agent which acts on the oxide layer, or on a dyestuff which may be incorporated in the layer is passed over the surface and the oxide layer is dyed before and/or after the passage thereover of the gas so that a visible record of the differential gas  flow on the surface is obtained. The oxidized surface may be of a self adhering aluminium strip which may be anodically oxidized before or after application to the surface to produce a chemigraphic record. Alternatively the strip may be photographed and the photograph kept as a record.
Patent GB-1302947-A (GB)
IPC: B29C48/395
Filed: 1970-06-24
Abstract: 1302947 Extruding resin foams SEKISUI KAGAKU KOGYO KK 24 June 1970 [24 June 1969 16 Oct 1969] 30724/70 Heading B5A [Also in Division C3] A thermoplastic resin foam is extruded as a sheet, tube, rod, or filaments, by an extruder comprising a screw 1 consisting of a compression zone I wherein the screw volume/unit pitch decreases continuously in the extrusion zone, followed by a metering zone II wherein the screw volume/unit pitch is constant and is 1À6 to 2À0 times the final unit pitch volume of the compression zone, and wherein blowing agent is injected at 7 into the metering zone. The material is cooled between the screw 1 and the die by passage through a device comprising a plurality of tubes which are externally fluid cooled. The extrusion barrel may be heated and cooled, and the screw is water cooled. The volume/unit pitch may be decreased by changing both the screw channel depth and pitch, but in the described embodiments the screw thread is of constant pitch throughout, with the depth decreasing in the compression zone I. There may be located intermediate the screw compression and metering zones I, II an intermediate screw zone III of the same constant pitch and of a volume equal to that of the last screw channel of the compression zone. The blowing agent is injected at 7, through a pair of ball check valves, Fig. 3 (not shown), at a location between ¢ to 1 pitch of the first metering zone screw pitch. The cooling device, Fig. 5, may comprise an open topped vessel between end walls 27, 28 whereof the tubes 31 extend and which vessel contains water, oil or glycerine circulated by a stirrer 30 and heated, when necessary, by heaters extending inwardly from the side walls thereof. Alternatively, Fig. 7 (not shown), the cooling device may comprise a cylindrical vessel between end walls whereof the tubes (31) extend around an axially disposed pipe which sprays them with coolant which is discharged through outlets (42) in the cylindrical wall of the vessel. Alternatively the coolant may be circulated between an inlet and outlet of both types of the cooling devices disclosed. It is stated that the preferred overall screw length to diameter ratio is 30 to 40, being 14 to 25 in the compression and 10 to 15 in the metering zones, and 2 to 4 in the intermediate screw zone. The compression ratio in the compression zone is 2 to 4. The thermoplastic resin may comprise polyethylene, polypropylene, polystyrene, polyvinyl chloride, ethylene/vinyl acetate copolymer and ethylene/vinylchloride copolymer. The blowing agents may comprise petroleum ether, propane, butane, pentane, hexane, monochlorodifluoromethane, dichlorodifluoromethane, dichlorotetrafluoroethane, monochloropentafluoroethane, or nitrogen or carbon dioxide gas. In the examples, polyethylene is expanded by the injection of 20% by weight of dichlorodifluoromethane.
Patent GB-1340297-A (GB)
Title: Thionophosphoric phosphinic acid esters and their use as insecitcides and acaricides
IPC: A01N57/08
Filed: 1972-06-30
Abstract: 1340297 Pyrazole derivatives BAYER AG 30 June 1972 [2 July 1971] 30728/72 Headings C2P and C2C Novel compounds of Formula I where R is C 1-6  alkyl or alkoxy, R<SP>1</SP> is C 1-6  alkyl and R<SP>11</SP> is C 1-6  alkyl which may be cyanosubstituted or is phenyl, may be prepared by reacting a pyrazole of Formula III in the presence of an acid-binding agent or in the form of an alkali metal, alkaline earth metal or ammonium salt with a compound of Formula II where Hal is halogen. The starting materials of Formula III may be prepared by means of the following reaction scheme each of the intermediates being isolated. The compounds of Formula I have insecticidal and acaricidal properties and may be used as the active ingredients in conventional pesticidal compositions.
Patent GB-465418-A (GB)
Title: Improvements in or relating to boiler furnaces
IPC: F23L1/02
Filed: 1935-11-08
Abstract: 465,418. Firegrates. SMART, H. H. Nov. 8, 1935, No. 30904. [Class 51 (i)] A firegrate is built up of a number of grids each supported on a Venturishaped air supply duct 1, Figs. 1 and 4, which are in turn supported by bearers 6. The throat of each duct is located substantially below the centre of the grid 2 and the inlet 8 is arranged at right-angles to the outlet 3 and with its edge substantially in vertical alignment with one edge of the outlet. Each duct is provided with a hinged valve 13 provided with controlled openings 15 and the valves of the ducts may be coupled by links for simultaneous operation. The ashpit may be divided longitudinally into compartments supplied with air by ducts 9, 12, 19, and the air supply may be controlled by a valve 18 mounted on the hinge pin of the firedoor. Specification 465,458 is referred to.
Patent GB-733133-A (GB)
Title: Improvements in ventilating arrangements for power-driven vehicles, particularly passenger vehicles
IPC: B60H1/26
Filed: 1953-11-09
Abstract: 733,133. Vehicle roofs. HOHMANN, W. Nov. 9, 1953 [Dec. 22, 1952; June 5, 1953], No. 30923/53. Class 108 (1). [Also in Group X] Apertures 2 in the roof 1 are closed by covers 4 pivoted on pairs of links 5, 6 to the roof, and elevation of the covers for ventilation purposes is effected preferably by hydraulic pistons 12 actuated from a hand-operated pump H adjacent the driver's seat. Deflectors 7 may be fitted to the roof 1 and the pairs of links on each cover 4 may also be fitted with transverse stiffening members which act as deflectors to direct air through apertured plates disposed inside the openings 2.
Patent GB-160234-A (GB)
Title: An improved manufacture of milk food products
IPC: A23C11/04
Filed: 1919-12-10
Abstract: 160,234. Townsend, C. S. Dec. 10, 1919. Food preparations.-In a process, such as those described in Specifications 104,933 and 125,172 for manufacturing artificial milk by emulsifying vegetable fats in skim milk, provision is made for the development of lactic-acid ethers to improve the flavour of the milk. For this purpose skim milk is heated to 75-100‹ F. and deodorized vegetable fats, such as coco-nut butter, palm-kernel butter or ground-nut oil slowly added and the mixture agitated and passed through a homogenizer. It is then allowed to stand at a temperature of 62-68‹ F. for a period of 6-8 hours, during which it is stated that the ethers desired develop under the influence of the enzymes present. The milk thus produced can be condensed or dried.
Patent GB-1276502-A (GB)
Title: Hardening foundry sand
Inventor: LEARY JONATHAN KEITH
IPC: B22C1/18
Filed: 1968-06-28
Abstract: 1276502 Vitreous calcium silicate ALBRIGHT & WILSON Ltd 26 June 1969 [28 June 1968] 31035/68 Heading C1A [Also in Division C3]  A calcium silicate glass is produced by reacting Ca 3 (PO 4 ) 2  with sand and a reducing agent to form phosphorus vapour and a molten calcium silicate slag, and chilling the slag to form a glass. The glass may alternatively be prepared by reacting lime and sand in an arc furnace and chilling the molten product.
Patent GB-912295-A (GB)
Title: Improvements relating to percussive caps
IPC: F42B39/00
Filed: 1959-09-11
Abstract: 912,295. Percussion caps for toys. RYAN, J. W. Sept. 11, 1959 [Feb. 9, 1959], No. 31104/59. Class 9 (2). A circular percussive cap to be stuck to the anvil of a toy gun, is cut from a sheet of material 11 and comprises a charge of fulminating material 14 fixed to one surface 22 and a pressure-sensitive adhesive 13 on the other surface 21. In another form, the charge is held on the sheet 11 by a second sheet 16, which is stuck to the first sheet. A third sheet 12 may be removably stuck to the adhesive surface 21. Specification 912,294 is referred to.
Patent GB-925902-A (GB)
Title: Improvements in article wrapping machines
Inventor: GRIFFITHS WILLIAM
IPC: B65B59/00
Filed: 1960-09-09
Abstract: 925,902. Wrapping-machines. FORGROVE MACHINERY CO. Ltd. Aug. 30, 1961 [Sept. 9, 1960], No. 31166/60. Class 94(1). A wrapping-machine which applies an openended tube of patterned wrapping material from a web 11 about an article 17 comprises a cranked feed arm 19 with roller 14, a transfer plate 18, a pattern sensing device 31 and a web feed stop-mechanism 32, 33. In the figure the feed arm 19, driven by a constant Stroke driving arm 23 via a resilient connection 27-30, is shown having moved from a position 141 (in chain-line) to provide a supply of wrapping material. When the sensing device, a photo-electric cell 31 detects a registration spot on the web 11, a solenoid 33 is energized to operate a bar 32 which clamps the web and hence arrests the motion of the feed arm 19, any further movement of the driving arm 23 being absorbed by the resilient connection 27-30. Severing of the web by a knife 15 allows removal of the article 17 and the free end of the web falls in front of an article feed plate 34. Transfer plate 18 is moved angularly into alignment with plate 34 and an article on the latter is pushed on to the former to become enveloped in the wrapping material. At the same time feed arm 19 returns to the position 141. With the return of the transfer plate 18 to the position shown the web is brought between rollers 16 and the feed arm 19 is ready to move downwardly to repeat the cycle of operations. The machine may be set to wrap articles of different girth by using wrapping material with appropriately spaced registration spots.
Patent GB-759003-A (GB)
Title: A colour filter for photography
IPC: G02B5/20
Filed: 1954-10-28
Abstract: 759,003. Colour filters. NABA, D. Oct. 28, 1954 [Nov. 11, 1953], No. 31222/54. Class 97 (1). A colour filter comprises a combination of orange, yellow and green filter elements such that the overall transmission for light of wavelengths less than 4400 A is less than 10 per cent, that for wavelengths over 5500 Š is at least 75 per cent, and that for light between these wavelengths varies in a substantially linear manner in terms of wavelength. The manner in which the filter elements may be arranged is shown in Figs. 2 to 5, the orange, yellow and green filters being marked o, y and g respectively. The complete filter need not be circular, but may be, for instance, hexagonal. The filters may be made of solid materials such as glass or plastic with the colour in the material itself or they may comprise gelatin layers between glass or plastic plates. It is stated that the filter emphasises the colour contrasts in the range of 4400 Š-5500Š when used for black and white photography.
Patent GB-173935-A (GB)
Title: Cutting machine
IPC: B23K7/00
Filed: 1920-11-04
Abstract: 173,935. Davis - Bournonville Co. Nov. 4, 1920. Addition to 139,454, Dividing by /Ms:0!t.-The arm supporting the torch and aligned feedroller in the machine described in the parent Specification is adapted to move through a complete circle round the central standard and to enable the standard to support templets of any form. The base 1, Fig. 1, carries a central pillar 2 on which is mounted a sleeve 3 carrying the arm 4, having upper and lower tracks 5 on which run rollers 6 on the carriage 7 carrying the torch 8 and the aligned feedroller 9. To a support 14 on the central pillar is bolted a frame 17 carrying an internal templet 16. An external templet may be bolted on top of the support 14, the frame 17 having been removed. A straight-edge templet may be bolted to the support 14 in place of the frame 17. A gauge 21 is used to locate the work to be cut. Specification 158,365 is referred to.
Patent GB-830003-A (GB)
Title: Improvements in photographic silver halide emulsions
IPC: G03C1/83
Filed: 1956-10-15
Abstract: Anthraquinone dyes having in the one position an -NH.CH2.SO3M group (M being alkali metal, ammonium or organic amine) and optionally other substituents such as chlorine, bromine, hydroxyl, methyl, ethyl, methoxy ethoxy, sulpho, nitro or a further -NH.CH2. SO3M group, are prepared by the methods disclosed in Specifications 23968/99 and 238,717.  Dyes are specified which are the sodium salts of the following anthraquinone derivatives:-1 : 5 - dihydroxy - 2 : 6 - disulpho - 4 : 8 - disulphomethylamino-; 1 : 8-disulphomethylamino-; 1 : 8 - dihydroxy - 2 : 7 - disulpho - 4 : 5 - disulphomethylamino-; 1 - hydroxy - 2 - sulpho - 4 - sulphomethylamino-; 1 : 4 - disulphomethyl - amino- and 1 : 5-disulphomethylamino-. Specifications 408,571, 450,958, 581,772, 718,867, 725,387, 756,226 and 783,596 also are referred to.