baber/WOPTO huggingface dataset:
Patent GB-891992-A (GB)
Title: Improvements relating to photographic methods and apparatus
IPC: G03C5/56
Filed: 1959-06-26
Abstract: 891,992. Photochromic bodies; uses in photography. LOGETRONICS Inc. June 26, 1959 [Aug. 8, 1958], No. 22012/59. Classes 98(1) and 98(2). [Also in Group XL(a)] A photographic method comprises directing light from a subject to modify a photochromic body and forming a modified image of said subject on a photosensitive surface using light which has been incident on the subject and which has passed through the photochromic body. Enlarging apparatus (wherein "automatic dodging" may be performed by said method) comprises-as shown in Fig. 1-a photochromic body 18 arranged for receiving modifying light 14 via a subject or transparency 10-whereby a temporary image of the transparency 10 is formed in said body- and a lens and diaphragm assembly 20, 22 for directing and focusing actinic light 12 which has passed through both transparency 10 and body 18 on to a photographic photosensitive surface 24. The relative intensities of light beam 12 and 16 may be adjusted as may also the intensity of a beam 16 provided for clearing the temporary image formed in the body 18 by the light 14, after surface 24 has been exposed. Preferably the photochromic body is one which has a normally clear state, changes to a deep blue colour on exposure to blue (modifying) light and returns to its clear state on exposure to yellow (clearing) light. The position of the body 18 may be adjusted in the direction of arrows 28, whereby there is obtained blurring of the image in the photochromic body and, as a result, variation of the contrast of the image formed on surface 24. Alternatively, to obtain blurring of the image in said body 18, body 18 may be moved, for example rotated in a plane 26 transverse to the path of beams 12, 14 and 16. Alternatively the transparency 10 and surface 24 may be moved in synchronism with the body 18 fixed. In a further alternative, said blurring of the image may be obtained by employing a photochromic body comprising a thin liquid film wherein connection currents cause diffusion of the image. In a modification (Fig. 2 not shown) the body 18 is placed above the transparency 10 and the beams 14 and 16 are directed through the transparency 10 and on to the body 18 by means of a beam splitting mirror placed adjacent and above the lens 20 For contact printing a sandwich may be formed of a photosensitive surface 24, a photochromic body 18-the material of which may be encapsulated-and a transparency 10. The beams 12, 14, 16, are directed as indicated. For use in cameras, a photochromic body 18 is placed behind the lens 34 and before the photosensitive surface 36. In this case, the beams 12 and 14 both originate from the same source-the subject 32. In the previous cases, separate sources may, of course, be provided. Photochromic bodies having a substantially neutral transmission characteristic in both modified and normal states may be used in the reproduction of colour transparencies.
Patent GB-1378378-A (GB)
Title: Hydraulic control valve
IPC: F15B13/04
Filed: 1972-01-20
Abstract: 1378378 Valves HYDRAULIC INDUSTRIES Inc 20 Jan 1972 [20 Jan 1971] 22075/74 Divided out of 1378377 Heading F2V The subject-matter of the present Specification also appears in Specification 1,378,377. The claims are concerned with the arrangement of the pressure actuated compensating valve in relation to the slidable spool.
Patent GB-184382-A (GB)
Title: Improvements in and relating to automatic sprinklers or the like
IPC: B05B1/26
Filed: 1921-08-20
Abstract: 184,382. Horton, S. Aug. 20, 1921. Sprinklers, automatic.-The levers of automatic sprinkler heads are set to give a definite pressure on the valve diaphragm by applying the required pressure to a sliding plunger or rod f in the sprinkler head by means of a weighted lever p or like pressure-determining device, the plunger then being locked in position, as by screwing down a cap j, which is provided with a central hole k, of smaller diameter than the plunger f, for the passage of the rod l of the pressureapplying device. During the setting, the sprinkler head is held in position by a plug n on a base member, on which is mounted a pillar o carrying the weighted lever p. After the setting, the cap j is fixed by pinning, or by running molten solder into the hole k, notches being provided to enable the solder to run down into the space above the threaded boss d on which the cap j screws. The cap may carry or be formed with a waterspreader.
Patent GB-1101529-A (GB)
Title: Vane assembly for use in a fluid flow machine
Inventor: PETRIE JAMES ALEXANDER
IPC: F01D9/04
Filed: 1966-05-18
Abstract: 1,101, 529. Compressor blade fixing. ROLLS-ROYCE Ltd. May 18, 1966, No. 22147/66. Heading F1T. Individual stator guide blades 31 in the intermediate pressure compressor of a gas turbine by-pass engine are mounted with an interference fit between an annular wall member 23 and an annular forward extension 30 from the inner wall 14 of the by-pass passage (18), Fig. 1 (not shown). Each blade 31 has platforms 32, 33 mounted in annular recesses 34, 35 in the walls 23, 30 respectively, the interference fit being provided by heating wall 30 at assembly so that shrinkage occurs on cooling. The blades may in addition be bonded to walls 23, 30 by epoxy resin or bolted to at least one of the walls. Wall 30 is secured to wall 14 by bolts 37. Annular wall 24, bolted to wall 23, carries a rotor bearing (21).
Patent GB-1046265-A (GB)
Title: Compositions and process for the manufacture of cured resins, and products obtained thereby
IPC: C08L61/34
Filed: 1963-06-04
Abstract: Cured resinous material is obtained by hardening a mixture of a furan resin and a resinous reaction product of an aromatic hydrocarbon and formaldehyde having an oxygen content of at least 5%.  The mixture may be hardened with an acid or with a material which produces an acid on heating.  In Examples: (1) a resin obtained by acid condensation of furfuryl alcohol is mixed with a condensation product of toluene and formaldehyde, coke powder is added and the mixture hardened with para-toluene sulphonic acid; (2) a resin obtained by acid condensation of furfuryl alcohol and furfural is mixed with a condensation product of xylene and formaldehyde, quartz sand is added and the mixture hardened with naphthalene disulphonic acid; (3) a furyl acrolein resin obtained by alkaline condensation of furfural with acetaldehyde was mixed with a resin obtained by acid condensation of xylene, ortho-cresol and formaldehyde, and the mixture cured with para-toluene sulphonic acid in the cold, and with para-toluene sulphonic acid ethyl ester with heating.  Other starting materials mentioned are reaction products of furfuryl alcohol and furfural with acetone and formaldehyde, and reaction products of naphthalene and diphenyl with formaldehyde.
Patent GB-404390-A (GB)
Title: Improvements in variable speed gearing
IPC: F16H9/24
Filed: 1932-08-10
Abstract: 404,390. Variable speed gearing. SCOTT, F. S., 71, Lowlands Road, Harrow, Middlesex, and HULME, L., 17, Mawson Street, Ardwick, Manchester. Aug. 10, 1932, Nos. 22372/32 and 11420/33. [Class 80 (ii).] An automatic variable-speed gear comprises co-axial driving and driven members, an elliptical or other non-circular sprocket p on the driven member b, a pair of radially-movable planetary sprockets k mounted on the driving member, and an endless chain q embracing all the sprockets. As shown, the sprockets k are mounted on axles carried in blocks i slidable between guides k mounted on spaced plates d, f carried by the driving-shaft a. The driven sprocket p is arranged between the sprockets k, so that the sprockets may overlap, while permitting the triple chain q to engage all of them. The sprockets k are urged outwards by light springs m to keep the chain q in tension. When the shaft a is driven, the sprockets k move out under centrifugal force, and the resulting tension in the chain q, acting on the elliptical sprocket, causes the shaft b to rotate at a reduced speed. The casing d, e, f may form part of the engine flywheel, and may be formed to retain oil. A direct drive may be obtained by means of a dog clutch. The sprockets k may be mounted in eccentric discs or wheels. Several of the gears may be arranged coaxially with the major axes of the elliptical sprockets relatively displaced to produce a more uniform drive. According to the second Provisional Specification, a square sprocket may be used.
Patent GB-966840-A (GB)
Title: Pesticidal dithiocarbamates and their use
IPC: C07C333/18
Filed: 1963-06-05
Abstract: The invention comprises dithiocarbamates of formula R-S-C(=S)NHR1 wherein R is a carbocyclic aryl group, R1 is an acyclic or alicyclic aliphatic hydrocarbon group, R and R1 being optionally substituted. The compounds are prepared by reacting an isothiocyanate R1NCS with a mercaptan RSH. In examples, where R1 is methyl, R is phenyl, o- or p-chlorophenyl, 2, 4, 5-trichlorophenyl, pentachlorophenyl, o- or p-tolyl, xylyl, p-t-butylphenyl or naphthyl; the compound wherein R1 is 2-cyanoallyl and R is phenyl is also specified. Other compounds within the general formula are also listed.ALSO:Coccidiostatic animal feeds comprise an inert edible carrier and at least one dithiocarbamate of formula R-S-C(=S)NHR1, wherein R is a carbocyclic aryl group, R1 is an acyclic or alicyclic aliphatic hydrocarbon group, R and R1 being optionally substituted.  Other coccidiostats such as sulphaquinoxaline, 4,41-dinitrocarbanilide/2-hydroxy-4,6-dimethylpyrimidine complex, 3,31-dinitrodiphenyldisulphide, arsonilic acid, 3-amino-4-hydroxyphenylarsonic acid or 5-nitrofurfural semicarbazone may be present, vitamins, growth promoting agents and antibiotics are also mentioned and a feed supplement containing many such additives is specified.  The active compound (and optionally a surface-active ingredient) may be added to the drinking water of animals. Antimicrobial compositions comprising said dithiocarbamates and a solid or liquid carrier and/or a surface-active agent are described.
Patent GB-1143395-A (GB)
Title: Improvements relating to mooring ropes and shackles
IPC: D07B1/18
Filed: 1965-05-26
Abstract: 1,143,395. Mooring rope and shackle. W. KOHRING. 5 Aug., 1966 [26 May, 1965], No. 22430/65. Heading D1T. A mooring rope has a flexible tubular sheath 17 of corrosion resistant material such as rubber, silicone or other plastics loosely surrounding a stranded wire core 1, the core being secured to a rope shackle 5 and the sheath 17 being engaged over a tubular end piece 7 secured to the shackle. The space between the core and sheath may be filled with oil or grease via an aperture 14 closed by a screw plug 16. The core 1 has its end 2 splayed and bonded in a conical hole 3 in the shackle 5. The tubular piece 7 has a tapered bore 8 bonded to a corresponding tapered and serrated surface 9 of the shackle. The sheath 17 extends over a serrated part 11 of the end piece 7 and may be secured thereon by a wire wrapping 19 and a protective layer of tape material 20.
Patent GB-646617-A (GB)
Title: Improvements in ironing boards convertible into seats
IPC: A47C13/00
Filed: 1948-09-27
Abstract: 646,617. Combination furniture. WELDALL & ASSEMBLY, Ltd., and LIGHTBOURNE, R. C. Sept. 27, 1948, Nos. 22589/48 and 4076/49. [Class 52 (iii)] An ironing board 10 is connected to a base frame 1 by a panel 8 which can be swung down about pivots near its lower edge to rest on the base frame for use as a seat, the ironing board serving as the seat back. Spring-loaded stays 11 engage pins 15, 15a to hold the parts in either position. The front legs of the frame are interconnected by step treads 7.
Patent GB-1041747-A (GB)
Title: Improvements in or relating to powders for extinguishing fires
Inventor: CLEMENTS HENRY GEORGE
IPC: A62D1/00
Filed: 1962-06-12
Abstract: A dry fire-extinguishing powder, particularly for use against metal fires, comprises a mixture of alkali- or alkaline earth-metal chlorides and/or fluorides together with a lesser amount of anhydrous borax or a non-flammable synthetic resin e.g. P.V.C.  A slip agent e.g. talc, a moisture-repellant e.g. magnesium stearate and an inert dye may also be included. Preferably, the salts are fused and ground before use.  A eutectic of NaCl and KCl is suitable.
Patent GB-709828-A (GB)
Title: Improvements in and relating to apparatus for preventing air pollution by dust and other particles
IPC: B04C5/12
Filed: 1951-09-28
Abstract: 709,828. Centrifugal separators. HALL & KAY, Ltd., HALL, S., and MYERS, A. Nov. 7, 1952 [Sept. 28, 1951], No. 22645/51. Class 23 Relates to apparatus as described in Specification 679,572, [Group XXVIII], 'in which polluted air is drawn from an enclosed machine connected in series with a separating chamber to which the polluted air is passed by a fan, the dust-laden air being passed through vertical filter tubes from which the deposit passes to a receiving bag and the cleansed air is returned to the machine. According to the invention the filter tubes are omitted and the polluted air passes through a trunk 7 into a centrifugal separator 5 in a casing 4 from which the dust passes into a bag 6, the cleansed air being returned to the apparatus by a trunk 8 after passing through a chamber 9. This chamber, Fig. 3, is T-shaped and a rod 13 carrying dampers 14, 15 can be moved as required by means of a handle 16 to control the openings 11, 12 through which air can escape either to the room or the external atmosphere. More than one machine may be connected to the separator.
Patent GB-471344-A (GB)
Title: Improvements in or relating to apparatus for dispensing measured quantities of liquids
IPC: B67D7/08
Filed: 1936-08-17
Abstract: 471,344. Dispensing measured quantities of liquid. SAUSER AKT.-GES. Aug. 17, 1936, No. 22655. Convention date, Aug. 19, 1935. [Class 116] A liquid - dispensing apparatus has a flowmeter 2 with inlet 1 and discharge through a hose 5 provided with a nozzle - valve 6, the flow - meter being locked at the end of the. delivery of a unit quantity of liquid, by mechanism which is put into operation automatically by the partial closing of the nozzlevalve. The flow - meter has a spindle 9 geared to an indicating-spindle 13 through spur gearing and a one-way clutch 17. The spindle 13 carries a cam 14 which swings a rock-shaft 18 by means of an arm 19 when the indicator is at zero, thus disengaging a lever 20 from a step 28, Fig. 5, on a cam 10 mounted on the shaft 9, whereby the meter is free to commence registering when the indicator is at zero. The nozzle-valve being opened, delivery takes place, until at an arbitrary moment during the delivery of the last unit of the required quantity, the nozzle-valve is partially closed, thus causing pressure to build up in a pipe 8 and extend a bellows-like end 7, Fig. 4, of the pipe, whereby a catch 23 is tripped from engagement with an arm 21 on the shaft 18, thus allowing the shaft 18 to rock and move the lever 20, Fig. 5, into the path of the step 28 on the cam 10. Flow then continues until the meter is stopped by the step 28 engaging the end of the lever 20.
Patent GB-1356505-A (GB)
Title: Web feed mechanisms
IPC: G06K15/16
Filed: 1972-05-15
Abstract: 1356505 Feeding webs SIEMENS AG 15 May 1972 [19 May 1971 (3)] 22656/72 Heading B8R [Also in Division B6] A web feed mechanism for a web P provided with transport perforations and comprising one or more layers, e.g. a feed mechanism in a high speed printer, includes feed belts SR having tapered drive pins S, and at least one pressure belt AR3 per feed belt, the pressure belts being swingable away from the feed belts and mounted on idler pulleys LR3, LR4 so that they are entrained by the feed motion of the feed belts. The pressure belts may have rounded dove tail protruberances ST thereon to fit between the pins on the feed belts or holes therein to accommodate the pins. Two pressure belts per feed belt may be provided, the pressure belts each being of circular cross section and running one on either side of the pins. The pressure belts run around idler pulleys LR3, LR4 mounted on a spring urged yoke or rocker which can be swung away from the feed belts for web loading. The pressure belts may be of rubber, or plastics and may be provided with a steel, plastics or textile cable insert.
Patent GB-326741-A (GB)
Title: Improvements in or relating to presses for moist material
IPC: B30B9/18
Filed: 1929-07-23
Abstract: 326,741. Krupp Grusonwerk Akt.- Ges., F. May 4, 1929, [Convention date]. Extrusion presses.-A press for moist material,; and oil expression, of the type in which the outlet aperture of a straining space is narrowed by means of an adjustable cone, has this aperture constituted by the inner surface of a hollow cone or its equivalent 10 decreasing in sectional area in the direction of the outlet and the outer surface of the press shaft itself or of a bush 4 fitted thereon. The bush 4 may be entirely cylindrical, or it may be provided with an enlargement strictly conical or curved in the direction of the press axis, but at the outlet it is reduced in diameter more or less sharply to form a throttling edge 15. The regulation of the area of the outlet aperture is effected by the axial displacement of the hollow cone by a hand-wheel 11.
Patent GB-702189-A (GB)
Title: Improvements in method of making curing bags for use in the manufacture of pneumatictyres
IPC: B29C33/76
Filed: 1952-09-10
Abstract: 702,189. Tyre curing bags. UNITED STATES RUBBER CO. Sept. 10, 1952 [Dec. 17, 1951], No. 22685/52. Class 87 (2) A curing bag is made as follows:- (1) A trans-axial half of a curing bag is compressionmoulded as shown in Fig. 3, the edges 26 and 27 projecting slightly beyond the central transaxial plane A-A of the bag. (2) A second similar trans-axial half 40, having projecting edges 60 and 61 is compression moulded. (3) The two moulded halves are brought together in mating relationship under pressure to effect a circumferential splicing of the edge faces of the two halves, as shown in Fig. 5, the outer wall surfaces of the halves being confined against radial flow so that the excess material of the edges is displaced inwardly to provide a thickened portion 68, 69 on the interior surface of the bag along the circumferential lines of splice. (4) The bag is heated to vulcanize it. As shown, the halves are spliced together whilst they are still retained in the mould shells 15, 41 in which they were made. Recesses 45, 47 are formed in the bag halves to accommodate a premoulded resilient valve stem 43 which is incorporated in the bag, a rigid slidable pressurefluid-admitting tube 48 passing through the stem being received in recesses 50, 52 in the shells. The valve stem has an elongated tapered base portion 55. and the recesses 45, 47 are similarly shaped. The two halves are brought together as soon as possible after moulding, whilst they are still warm, the edges being scrubbed with a wire brush dipped in gasoline to ensure adhesion at the splice. The assembly (Fig. 5) is heated to vulcanizing temperature and hot water or steam is passed into the bag through tube 48. After vulcanization the anchoring projections 71. 72 are trimmed off. The mould, Fig. 3, for.making a half comprises a shell 15 and a core 18. To ensure that the bag half sticks in the shell when the core is removed, various expedients are adopted: thus (a) the core is coated with lubricant; e.g. 10 per cent. solution of butyl carbitol in gasoline, and the shell is kept free of lubricant, dirt, oil, rust etc.; (b) the shell is maintained at a temperature of at least 150‹F. (when the bag is being made of butyl rubber), and the core is maintained at a lower temperature, say 60-90‹F; (c) anchor forming recesses 38 are formed in the shell. Each bag half may be moulded from an extruded circular or halfcircular section solid rod of butyl rubber, or an extruded rod 11, Fig. 1, may be cut into two halves 12, 13, by a knife 14, each of these halves being moulded into a bag half.
Patent GB-1472401-A (GB)
Title: Fuel injection nozzles
IPC: F02M61/20
Filed: 1973-05-12
Abstract: 1472401 I C engine fuel injectors CAV Ltd 29 April 1974 [12 May 1973] 22718/73 Heading F1B A non-return valve 22 controls the flow of fuel from the inlet 15 to the spring chamber 17 to provide a pressure acting on the injector valve 14 with the spring 16 in opposition to the pressure acting on the injector valve to open the injector. The spring 16 may act to urge the valve 22 on to its seat. The end of the stem 21 remote from the valve head is subject to drain pressure and the valve 22 operates to provide a pressure in the chamber 17 which is a proportion of the peak pressure at the inlet 15.
Patent GB-690980-A (GB)
Title: Improvements relating to devices for homogenizing liquids
IPC: B01F25/70
Filed: 1951-10-01
Abstract: <PICT:0690980/III/1> A device for homogenizing liquids (e.g. milk) comprises an impact system in the form of a plurality of spaced fixed plates 10 each having an aperture 14, the apertures being so disposed that a jet of liquid entering under pressure through nozzle 2 is partially intercepted by the edge of each aperture and a part of the liquid is discharged laterally between the plates.  As the distance from the nozzle increases, the apertures decrease in size and the spaces between the plates become larger.  A conically-shaped displacement member 16 assists in homogenization and is adjustable in an axial direction.  Liquid discharged from the device impinges against a cylindrical impact wall 15.  The jet of liquid issuing from the nozzle 2 may be accelerated by introducing compressed gas, e.g. nitrogen or steam, into an ejector system through inlet 19.  A partial vacuum may be maintained in the vessel in which the homogenized liquid collects.  The device may be included in a system for the sterilization of milk (see Group VI).
Patent GB-761754-A (GB)
Title: Improvements in devices for guiding cigarette rods
IPC: A24C5/34
Filed: 1953-08-19
Abstract: 761,754. Radiation gauges. POWELL, G. F. W., and MOLINS MACHINE CO., Ltd. Aug. 13, 1954 [Aug. 19, 1953; May 31, 1954], Nos. 22873/53 and 16011/54. Class 40 (3). In a machine for measuring the mass of a cigarette rod by means of radiation beams, the rod passes between guides spaced by a distance not exceeding the dimension of the rod between the guides. Then the guides contact the cigarette rod firmly preventing the formation of air spaces and ensuring that as far as possible the shape presented to the radiation gauge is constant. In the embodiment of the invention described with reference to Fig. 2, the guides 1, 2 have grooves 3, 4 in which are travelling tapes 5, 6 which feed the cigarette rod. These tapes are so spaced as to slightly compress the cigarette rod. In a modification (Fig. 3, not shown), the guides are substantially flat with the guide tapes projecting from the flat faces. Further guides may be provided to prevent lateral wander of the rod. In the arrangement of Fig. 4 the cigarette rod is compressed to oval cross-section by wheels 10 having shaped edges, passes through close fitting guides 1, and is re-shaped to circular cross-section by further wheels 11. Travelling tapes may also be provided in the guides as in the previous embodiment. The guides are at opposite ends of the major axis of the oval, the radiation source and detector being fastened at opposite ends of the minor axis. Specification 684,503 is referred to.