baber/WOPTO huggingface dataset:
Patent GB-429195-A (GB)
Title: Improvements relating to tensioning devices for chains, belts and the like
IPC: F16H7/16
Filed: 1933-11-29
Abstract: 429,195. Tensioning belts &c. RENOLD & COVENTRY CHAIN CO., Ltd., and RENSHAW, A., Renold Works, Didsbury, Manchester. Nov. 29, 1933, No. 33474. [Class 80 (i)] Relates to automatic tensioning devices of the kind comprising a jockey wheel mounted to rotate upon a cylindrical bearing which is itself mounted to rotate about a fixed eccentric bearing pin under resilient restraint, and which is provided with non-return mechanism in the nature of a one-directional clutch which resists motion of the jockey wheel away from the chain or belt. A sleeve 10, Fig. 2, formed with sprocket teeth rotates upon a cylindrical block 12, Fig. 3, mounted to swing on a pin 14 passing through a hole near the periphery of the block. Reduced ends 16, 18 of the pin are carried by a back plate 20 and a front plate 28, these plates being secured by screws 24, 30 and dowel pins 26, 32 to a spigot 22 which is accommodated in a wide aperture in the bearing block 12 as shown in Fig. 3. The front plate 28 is shaped to permit of the sleeve 10 being withdrawn from the block 12. A coil spring 42, Fig. 3, housed in a recess 44 in the spigot forces a plunger 46 against the bearing block which is consequently urged in a direction to tighten the chain. The upper side of the spigot is concentric with pin 14 and has ratchet teeth 48 adapted to be engaged by a pawl 52 mounted on a pin 50 and loaded by a spring 54. The front end of the pawl has a slot 56, Fig. 2, for engagement by a screwdriver to swing the pawl clear of the teeth for re-setting purposes. The screw 24, Fig. 2, the spigot 22 and the pin 14 are permanently locked to the back plate 20 by a pin 58. In a modification, two pawls are employed and spaced a distance apart equal to half the pitch of the ratchet teeth. The pawls slide in a slot and are adapted to be raised clear of the teeth by a projection on a screwdriver-actuated pin. More than two pawls may be employed and their spacing correspondingly reduced. The back plate has two bolt holes 82 for fixing to a support.
Patent GB-469928-A (GB)
Title: Improvements in or relating to cinematographic, television and other apparatus comprising optical and mechanical parts
IPC: C22B25/00
Filed: 1936-12-07
Abstract: 469,928. Kinematograph apparatus; television apparatus &c. INTERNATIONALE TOBIS MAATSCHAPPIJ N. V. Dec. 7, 1936, No. 33561. Convention date, Jan. 10. [Class 97 (i)] [Also in Group XL] In kinematograph, television and other apparatus comprising optical elements, mechanical parts, and a sound-proof cover or casing, &c., only the optical elements which require to be rigidly connected to the apparatus are housed within the casing, and one or more further optical devices are mounted externally on the casing, or on a member separate therefrom. The further optical devices may consist of supplementary lenses, telephoto objectives, colour or polarizing filters, diaphragms, &c., and may replace a plane-parallel glass disc covering a light aperture in the casing, or may be additional thereto ; they may be adjustable or changeable, and, if they are such as to require changing periodically, for example multi-colour filters, they may be driven through resilient couplings or the like from the drive of the apparatus. In apparatus for electrically transmitting pictures and sound the scanning means may be within the casing.
Patent GB-745605-A (GB)
Title: Raking device having raking beams interconnected by rotatable supports
IPC: A01D78/00
Filed: 1953-12-03
Abstract: 745,605. Side-delivery rakes. VAN DER LELY N.V., C. Dec. 3, 1953 [Dec. 10; 1952], No. 33593/53. Class 6 (3). In a side-delivery rake, of the type having rotatable reels 22, 27 interconnected by oblique rake-bars 30, the reels are not positively-driven but are rotated by the ground-contact of the rake-bars. The reels form part of a pair of sidedelivery units which are mounted on a frame 1, 1A, 3, comprising a central beam 3 with downturned ends on which the outer parts 1, 1A, are rotatably mounted, locking means being provided so that the parts 1, 3, 1A may be secured in alignment for side-delivery, or in H-plan for swath-turning, two swaths 41, 41B then being turned. The frame-sections 1, 1A are mounted on castors 2, 2A, and the central section has a castor 6 on a pivoted outrigger-arm 4 through which the machine is towed by a coupling 5. The reels are floatingly mounted on spring- loaded cranks 19, 25A and may carry peripheral tines 35. The rake-bars 30 have cranked ends pivoted to the reels and these ends may carry relatively long tines 34 sloping oppositely from the tines 35. The tines 33 on the rake-bars 30 are relatively short and also slope oppositely to the tines 35. The reels 22, 27 may be resiliently deformable in a direction perpendicular to their planes of rotation.
Patent GB-1409629-A (GB)
Title: Plastics material substrates for tissue cell culture
IPC: C08J7/02
Filed: 1973-07-16
Abstract: 1409629 Treating polycarbonates with organic solvents H K MULLER 16 July 1973 [18 July 1972] 33839/73 Heading C3R The wettability by aqueous liquids of a surface of a polycarbonate plastics material substrate suitable for use as a base in tissue-cell culture is improved by first treating at least one surface of such a substance with a watermiscible organic solvent therefor and then washing the thus treated surface with water. Specified solvents are acetone and ethyl acetate. Subsequently the substrate may be treated with a solution of water-glass or a mineral acid. Smooth transparent polycarbonate surfaces become milky white and readily wettable by aqueous liquids. Examples are given.
Patent GB-1102548-A (GB)
Title: Improvements in and relating to pneumatic tyres
IPC: H01J23/24
Filed: 1965-05-14
Abstract: 1,102,548. Building pneumatic tyres. MICHELIN & CIE (Compagnie Generale Des Etablissements Michelin). 14 May, 1965 [14 May, 1964], No. 33967/67. Divided out of 1,102,547. Heading B7C. The subject matter is substantially the same as the description made with reference to Figs. 1-6 of Specification 1,102,547, the claims being concerned with a method of effecting local changes of orientation of the cords of plies of initially rectilinear cords.
Patent GB-1480956-A (GB)
Title: Hydraulic shock absorbers
IPC: F16F9/348
Filed: 1974-08-01
Abstract: 1480956 Shock absorber piston valves; valves JONAS WOODHEAD Ltd 1 Aug 1974 34033/74 Headings F2S and F2V A shock absorber comprises a working cylinder 1, a piston 7 which is slidable in the working cylinder and is provided with a passage 26 extending from one side to the other of the piston, and a valve 12 arranged to control fluid flow through the passage, the valve comprising a generally annular valve disc 20 which is resiliently biased against one side of the piston to close the passage 26 and is bodily movable away from the piston to open the passage, the resilient biasing of the valve disc 20 being provided by a spring 22 which acts through an intermediate member 21, with the engagement between the spring and the intermediate member being radially inward of the engagement between the intermediate member and the valve disc, and the arrangement being such that, when the valve disc 20 has moved bodily away from the piston, there are two distinct flow paths from the passage to a point in the cylinder on the side of the valve disc remote from the piston, one path passing around the outer periphery of the valve disc and the other through the central opening 23, Fig. 2. There are three passages 26 connected by an annular groove 25. The valve disc 20 has three lobes 24, Fig. 2, which centre it. The inner diameter of the annular portion of the valve disc is chosen so as not to block the flow on rebound to passages 18 and a valve 13. The spring 22 biasing the valve disc 20 is seated between a rebound stop 29 and the slidable dished intermediate member 21 which has apertures 28 to allow passage of fluid which has flowed through the central opening 23 of the valve disc 20. The shock absorber may be of double- or multi-tube type.
Patent GB-1187246-A (GB)
Title: Electrode Holder for Electric Arc Furnaces
IPC: H05B7/103
Filed: 1967-07-25
Abstract: 1,187,246. Electrode holders for arc furnaces. FRIED. KRUPP G.m.b.H. 25 July, 1967 [26 July, 1966], No. 34066/67. Heading H5H. A holder 8 for furnace electrodes 1 comprises six contact points provided as jaws in two planes perpendicular to the electrode axis, the jaws 2, (3), 4 of one plane being staggered with respect to the jaws 5, (6), 7, of the other plane (see also Figs. 2-4, not shown). The jaws are movably mounted in ball sockets such that they can adapt themselves to the surface of the electrode 1. Three jaws 2, (3), 7, or 4, 5, (6) are connected to a pressure applying mechanism 10 whereby they can be removed from the electrode 1 to release the contact pressure thereon. Current is supplied via connections 9 to jaws 4, 5, (6), as shown, or to jaws 2, (3), 7. The jaws are cooled.
Patent GB-892917-A (GB)
Title: Improvements in or relating to cameras
IPC: G03B7/085
Filed: 1959-10-08
Abstract: 892,917. Photographic cameras. BAUER G.m.b.H., EUGEN. Oct. 8, 1959 [Oct. 9, 1958], No. 34074/59. Class 98(1). [Also in Group XL(b)] In a camera with photo-electric diaphragm control, all parts of the control mechanism and the lens are contained in a separate unit attached to the camera. The unit comprises chambers, one (23) of which is accessible from the rear when the unit is detached from the camera. The front attachment 2 of a camera contains the camera lens 11 and aperture defining vanes 18, 19 connected to a measuring instrument 16 all being protected from dust and light by a sealing disc 22. A battery 34 held in the cavity 32 by the spring 35 supplies current to instrument 16 through a photoresistance 25. An adjustable aperture 24<SP>1</SP> is set by rotation of the ring 26 to take account of exposure factors. The automatic exposure control may be replaced by a semi-automatic control or exposure control dispensed with.
Patent GB-833823-A (GB)
Title: Resolution of monoammonium dl-glutamate
IPC: H04N5/14
Filed: 1957-11-04
Abstract: Mixtures of monoammonium glutamate enantiomorphs are resolved by preparing an aqueous solution of said mixtures containing at least one of said enantiomorphs at a concentration greater than the level at which the solution becomes saturated with said enantiomorph, at a pH between 6 and 9 and a temperature between 15 DEG  and 35 DEG  C., seeding said solution with crystals of one such supersaturated enantiomorph, allowing said enantiomorph to crystallize therefrom, and separating crystals of said enantiomorph from the resulting slurry.  The residual solution remaining after recovering therefrom crystals of one optically active form may be seeded with crystals of the other optically active form to recover a quantity of such form from said residual solution.  The process is particularly applicable to the resolution of DL-monoammonium glutamate into D-and L-monoammonium glutamates, which may be subsequently converted into the corresponding D- and L-monosodium or monopotassium glutamates for further purification.
Patent GB-605110-A (GB)
Title: Improvement in cored solder
IPC: B23K35/02
Filed: 1945-12-18
Abstract: In a solder wire having a core of a mixture of solder and flux, the flux may consist of resin with or without an activating material such as orthotoluidene hydrochloride or aniline hydrochloride or other hydrohalide or salicylic acid.
Patent GB-955572-A (GB)
Title: Ribbon spool cover suspension mechanism for typewriters and like office machines
IPC: B41J29/12
Filed: 1961-09-26
Abstract: 955,572. Typewriters. SMITH-CORONA MARCHANT Inc. Sept. 26, 1961 [Dec. 28, 1960], No. 34401/61. Heading B6F. A typewriter or like office machine comprises an easily displaceable ribbon spool cover 10 which may be moved from the closed position shown in Fig. 2, to the partly open position, Fig. 3, and to the fully open position, Fig. 4. A mask 18 normally closes the front of the cover 10 but additional linkage allows the mask 18 and cover to separate in the partly open position so the operator can see into the machine. The cover is biased by a spring toggle mechanism into closed position but after lifting a certain way the springs assist the opening to Fig. 3 position. To increase the access to the machine the cover is pivoted about pivots 74 on links 76 to the position shown in Fig. 4.
Patent GB-1211967-A (GB)
Title: Improvements in or relating to spools
IPC: G11B15/67
Filed: 1969-07-08
Abstract: 1,211,967. Film spools. ERNST LEITZ G.m.b.H. July 8, 1969 [July 15, 1968], No.34420/69. Heading G2E. [Also in Division B8] A plastics spool for cine films, tapes, or the like comprises segmental flanges 1, 2, 3 extending from one end of hub ring 7 to overlie the gaps between similar flanges 4, 5, 6 extending from the opposite end of the hub, the facing edge portions of these flanges being formed with spring members 1a, 1b, 2a.....6b acting inwardly to engage the end of a film automatically fed to the spool. These spring members are free to move at their radially inner ends within axial grooves 7a in the hub ring. An axial slot 8 is provided in the hub for manual film attachment.
Patent GB-1154246-A (GB)
Title: Improvements in and relating to Colour Television Apparatus
Inventor: TINGEY PETER ALBERT
IPC: H04N9/70
Filed: 1966-08-01
Abstract: 1,154,246. Colour television. BRITISH BROADCASTING CORP. 23 June, 1967 [1 Aug., 1966], No. 34473/66. Heading H4F. The Specification relates to means in a television receiver able to receive either black and white signals or colour signals according to the PAL or SECAM IV systems, wherein the phase of the colour burst alternates from line to line, whereby the chrominance circuits are only enabled when the colour burst signals are received. In a first (PAL) embodiment, Fig. 1, the received colour signals, including the colour bursts, are passed through filter 11 to a chromiance amplifier 25 and a burst gate 12. The burst gate is opened by signals from generator 14 which in turn is activated by line sync. pulses from sync. separator 15. The burst gate thus separates out the burst signals, alternating in phase from line to line, and these are fed to one input of synchronous detector 13. A local oscillator 16 working at the burst frequency feeds the second input of the detector 13. The output of the detector alternates at the line frequency (7À8 kc/s.) and the D.C. component or mean value thereof is extracted by network 19 and used to control the phase of the oscillator output such that its phase is held to the mean of that of the bursts. The output of the detector is fed via a high-Q filter 20 to an adder 21 where the line sync. pulses are added, and the combined signal is fed to control a bi-stable circuit 22 to produce a switching signal. A D.C. signal is produced from the switching signal by means of detector 23 and smoothing circuit, and is used to switch the chrominance amplifier 25 to full amplification. In a second (SECAM IV) embodiment, Fig. 2, the synchronous detector 13 is fed with the output of filter 11, both directly and via one line period # delay 26, - phase shifter 27 and burst gate 12. 2 Thus if on successive lines, the colour bursts   applied directly are Cos wt., Cos (wt. + #/2) Cos wt. . . . those applied to the other input of the detector are respectively Cos (wt. + #), Cos # (wt. + -), Cos (wt. + #). . . . Thus the two 2 inputs to the detector are alternately inphase and antiphase, thereby giving rise to the required switching signal. The remainder of the circuit operates as in Fig. 1.
Patent GB-635180-A (GB)
Title: Improvements in or relating to charging pumps for two-stroke cycle internal combustion engines
IPC: F02B33/00
Filed: 1947-12-30
Abstract: 635,180. Two - stroke engines ; pumps. NICHOLSON, T. M. Dec. 30, 1947, Nos. 34628/47 and 9582/48. [Class 7 (ii)] The charge is compressed by a piston 12 in a cylinder 15 having an inlet valve guided by a fixed coaxial rod 14, which may comprise a piston valve 11 extending from the piston 12, or an annular suction - actuated valve, sliding and assisted by friction on a tubular extension of the piston which is guided by the rod 14. This valve comprises an annular flange seating on an extension of the cylinder head which also has pins to limit the movement of the valve. In the arrangement shown an auxiliary spring-pressed valve 19c admits charge at the beginning of the piston stroke. The delivery passage 21 leads to piston controlled parts of one of a pair of parallel working cylinders having a common combustion chamber. The application to an engine having opposed pairs of cylinders each with a separate pump cylinder, is described.
Patent GB-778806-A (GB)
Title: Manufacture of water-insoluble azo-dyestuff pigments
IPC: C09B41/00
Filed: 1953-12-11
Abstract: Alkyl - sulphonamido - alkyl carboxylic acids containing at least 8 carbon atoms in the first alkyl group are obtained by reacting with ammonia the sulphochlorination products of aliphatic hydrocarbons, e.g. a fraction obtained by the Fischer-Tropsch synthesis, and reacting the sulphonamides obtained with halogen-carboxylic acids, e.g. chloracetic acid.ALSO:Water-insoluble azo - dyestuff pigments having a soft grain are obtained by adding to the aqueous liquid in which the pigment is formed or worked up at any stage during the coupling operation (i.e. during coupling or immediately after) an aqueous emulsion of an oil containing an alkyl-sulphonamidoalkylcarboxylic acid as emulsifying agent containing at least 8 carbon atoms in the first alkyl group (see Group IV(b)) or a salt of such acid with an inorganic or organic base or a mixture of an oil with such an emulsifying agent, the ratio of the oil to pigment being so chosen that the finished pigment powder contains at least 10 per cent oil based on the weight of pigment, preferably 10-25 per cent.  The mixture of oil and agent may first be clarified by addition of water, a fatty acid such as oleic acid, an alcohol such as butanol or acetic acid.  Oils specified are peanut, linseed and maize grain oils, also mineral or synthetic oils.  In examples (1) an aqueous emulsion of mineral oil containing a sodium alkyl - sulphonamide - acetate is added to a coupling solution containing 1 - phenyl - 3 - methyl - 5 - pyrazolone and 1 - phenyl 3 - carbethoxy - 5 - pyrazolone to which is added tetrazotized 3, 31 - dichloro - 4, 41 - diamino - diphenyl; (2) an aqueous emulsion of the same sodium alkyl - sulphonamido - acetate with spindle oil is added to a coupling solution containing 1 - phenyl - 3 - carbethoxy - 5 - pyrazolone or 1 - tolyl - 3 - methyl - 5 - pyrazolone, followed by the addition of tetrazotized 3, 31 - dichloro - 4, 41 - diaminodiphenyl; (3) an aqueous emulsion as under (2) is heated with a coupling solution prepared from diazotized 1 - amino - 3 - methyl - 4 - chlorobenzene - 6 - sulphonic acid and b  - naphthol; (4) an aqueous emulsion as under (2) is heated with a coupling solution of the dye aniline -->a - naphthylamine --> acetonyl - 1, 8-naphthylene diamine or a coupling solution of the dye 2 - chloro - 4 - nitranline--> b  - naphthol.
Patent GB-995567-A (GB)
Title: Heat-treating apparatus for diffusion-coating processes
IPC: C23C10/34
Filed: 1962-09-11
Abstract: <PICT:0995567/C6-C7/1> A heat-treating apparatus for diffusion coating of metal articles comprises a tubular container charged with the article for processing together with impregnating powder surrounding it, in which the container is advanced by a conveyer while rotating said container during heating around its axis, and then passes through the heating means and then to a cooling stage. Tubular container 1 of steel pipe is packed with metal articles 3, e.g. steel plates embedded in a mixture of powders e.g. a mixture of chromium metal powder, alumina, and ammonium chloride as impregnating agent. The container is advanced and simultaneously rotated about its axis at about 1 rev. in 4 minutes by diagonally positioned roller conveyers 8. Container 1 is gradually conveyed towards and through heavy-oil heating furnace 10 kept at 1200  DEG C.  Several heating furnaces may be arranged in series (see Fig. 3, not shown).  After heating the container is cooled by water-spray cooler 12.  The process is applicable to the diffusion-coating of iron or steel with aluminium, chromium, silicon, at temperatures of 1100  DEG C., 1200 DEG C., 1000  DEG C. respectively.  The heating source can be fuel oil, town gas, propane gas, butane gas or electric heat.  The roll-conveyer may be replaced by a chain conveyer or a carriage and the cylindrical container may be replaced by a square-sectioned unit. The container can be a double-walled structure so that the article for processing and the impregnating agent may be inserted between the inner and the outer tube.
Patent GB-1019135-A (GB)
Title: Process for directly utilizing ore fines in metallurgical furnaces
IPC: C21B5/00
Filed: 1963-09-04
Abstract: Ore fines, fuel, fluxes and air with or without oxygen enrichment are injected into a blast furnace or cupola in convergent downwardly directed streams at a level between those of the main tuyeres and of 1000  DEG C., the temperature at the point of convergence being such that the fines are agglomerated.
Patent GB-1122399-A (GB)
Title: Improvements in or relating to loudspeakers
Inventor: KELLY STANLEY
IPC: H04R9/06
Filed: 1964-08-26
Abstract: 1,122,399. Loudspeakers. DECCA Ltd. 20 Aug., 1965 [26 Aug., 1964], No. 34920/64. Heading H4J. A moving coil loudspeaker has a circular piston-like diaphragm which is coupled to the loudspeaker housing via a loaded compliant coupling so as to improve low frequency response by introducing multiple resonances at #2 and 1/#2 times the basic resonance frequency. The peripheral coupling 18 and spider 17 may be sheets of natural fibre, e.g. doped linen, artificial fibre e.g. nylon, plastics, e.g. PVC or metal, e.g. aluminium. The loaded coupling includes a channelled annulus of aluminium having the same effective area and mass as the diaphragm. More than one such annulus may be used and the annulus need not be continuous. The loudspeaker is mounted in an aperture of a closed casing whose enclosed volume V cu. ins. is related to the diameter D ins. of the diaphragm by the relationship D = 0À86 4#v The coupling 18 serves to seal the gap between the diaphragm and its support. The diaphragm may be conical, flat or dish-shaped and is preferably made of foamed polyurethane.
Patent GB-602222-A (GB)
Title: Improvements in or relating to snap-action electric switches
IPC: H01H5/18
Filed: 1945-12-27
Abstract: 602,222. Snap-action switches. APPELBERG, C. W. Dec. 27, 1945, No. 34933. Convention date, Dec. 29, 1944. [Class 38 (v)] A snap-action switch consisting of a leaf spring fixed at one end and carrying a contact at the other is actuated by a movable member which abuts against the spring at a point which is to one side of the point at which the spring is fixed. Two actuating members may be provided which abut against the spring at two points, one on each side of the fixed point. Figs. 1 and 2 show a switch comprising a spring 1 fixed at one end between two blocks 2, 3 and carrying a contact 18 at its other end. The snap action of the spring is produced by a part 17 which is curved upwardly or downwardly and which is situated between two slits 15, 16. The actuating means consists of one or two pins 8, 9 situated laterally of the block 3 and acting on parts of the spring which project beyond the edges of the block. The pins 8, 9 may be moved by a pin 12 either directly or through a lever 11, the pin 12 being actuated by magnetic, thermostatic or other means.