baber/WOPTO huggingface dataset:
Patent GB-1086185-A (GB)
Title: Acoustic source arrangement
Inventor: CRAGG WILLIAM DONALD
IPC: H04R29/00
Filed: 1965-01-28
Abstract: 1,086,185. Testing headsets. STANDARD TELEPHONES & CABLES Ltd. Jan. 28, 1965, No. 3814/65. Heading H4J. An acoustic source arrangement, for use as an artificial mouth in the objective testing of subsets, includes a loud-speaker or other acoustic power source 5 coupled to one side of a sound radiating aperture 6. A control circuit (Fig. 10, not shown) includes a microphone 10 positioned between the source 5 and the aperture 6 for controlling the output of the source 5. An acoustic resistance 8 isolates the microphone 10 from sound field reaction with any object located on the other side of the aperture 6. The arrangement is such that the sound output from the power source 5 is maintained substantially constant. The acoustic resistance 8 may be distributed along a long throat as shown or be held at the aperture between wire mesh discs (Fig. 1, not shown). Alternatively a mouth having a short throat may be used with an acoustic resistance just within the mouth (Fig. 5, not shown).
Patent GB-540447-A (GB)
Title: Improvements relating to chairs, stools, stands, tables or the like
IPC: A47C7/00
Filed: 1940-03-01
Abstract: 540,447. Casting composite furniture frames. RUBERY, OWEN & CO., Ltd., and HAYES, W. T. March 1, 1940, No. 3841. [Class 83 (i)] [Also in Group XIV] A chair, table, stand, or the like comprises a number of legs, mainly or entirely of metal, having their upper ends grouped together and secured to a cast base. The legs may comprise section bars or tubes 11 closed at their upper ends by plugs 12 or by flattening &c. and a base 13 of zinc base alloy may be die-cast about them and, if desired, also about a tube 14 into which an externally tapered nut may be driven so as to receive a screw-spindle attached to a seat. The ends of the tubes may be formed externally with flats or roughened or perforated to key with the cast base which may have an inverted cup shape 15, Fig. 3, the wall being outwardly extended at 17 in star form to accommodate the legs 11.
Patent GB-882981-A (GB)
Title: Improvements in or relating to devices for indicating the quantity of tape material wound on a reel
IPC: G01B11/08
Filed: 1958-02-06
Abstract: 882,981. Metering record tapes. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 6, 1958, [Feb. 9 1957], No. 3916/58. Class 40 (2). A light beam, directed from a lamp 1 by a cylindrical lens 13, fills the space between the cheeks of a record tape take-up spool 2 over a cylindrical sector defined by the core and rim radii of the spool. An ellipsoidal mirror 11 forms an image of the lamp at a point 12 above the mirror. A translucent scale (Figs. 1, 3, not shown) intercepts the beam and indicates by the edge 14 of the shadow cast, the amount of tape 3 built up on the spool.
Patent GB-1222802-A (GB)
Title: Method and apparatus for the combustion of gases
Inventor: PRUSSAK GERHARD
IPC: F23G7/06
Filed: 1969-01-23
Abstract: 1,222,802. Gas burners. MANSFELD KOMBINAT "WILHELM PIECK" VEB. 23 Jan., 1969, No. 3924/69. Heading F4T. In a method for the combustion of gases of low low calorific value, gas and air are divided in a burner into a plurality of parallel individual jets arranged closely side by side which flow through a mixing chamber, corresponding in cross-section to that of the bundle of jets, and then into a combustion chamber in which is provided perpendicularly of the flow direction a wall of half the height of the chamber. As shown in Fig. 1, gas enters the burner through a tube 5 and flows along a plurality of pipes 7 welded into a perforated plate 6, the bundle of pipes preferably being of hexagonal cross-section. Air enters the chamber 2 and flows between the gas pipes, and the resulting gas/air mixture flows through a mixing chamber 8 into a combustion chamber located downstream thereof and containing the wall of half height. The air flow may be restricted, either by placing collars at the downstream ends of the pipes or by arranging a perforated plate around the pipes at this downstream end into which the pipes are loosely guided, holes for the air flow being located between the pipe bores. For burners using very large gas quantities and for gases of very low calorific value an ignition burner lance using high grade fuel may be arranged centrally and displaceably in the core of the pipe bundle.
Patent GB-792355-A (GB)
Title: Device for the pleated introduction of fabric webs into the clip or needle chains of tentering machines
IPC: D06C3/02
Filed: 1956-02-08
Abstract: 792,355. Tentering machines. KRANTZ, H., and KRANTZ, W., [trading as KRANTZ SOHNE, H.]. Feb. 8, 1956 [Feb. 12, 1955], No. 3967/56. Class 42 (1). [Also in Group XVI] An apparatus for the pleated introduction of fabric webs into the clip or needle chains 12 of tentering machines, having upper and lower feed rollers 5, 7 rotating faster than chains 12 and a brush 4 which grips the web in a troughlike guide 14 and presses it in a pleated condition into the needles or clips, premature, irregular pleating is avoided by an endless belt 6 driven by the upper feed roller 5 and pressing the web against the lower feed roller 7 on the path from the nip of rollers 5, 7 until the web is conveyed by the brush. Brush 4 is driven at a peripheral speed equal to or higher than that of rollers 5, 7. Contact between belt 6 and roller 7 is continued by a guide roller 13 to the point of transfer of the web to the brush in guide 14. Brush 4, belt 6 and rollers 5, 13 are mounted in an arm 1 which can be raised by pivoting about an axis 2, in which position slackening of belt 6 is prevented by a spring- loaded tension roller 17.
Patent GB-825778-A (GB)
Title: Improvements relating to shock absorbers or vibration dampers
IPC: F16F9/088
Filed: 1957-02-06
Abstract: 825,778. Shock absorbers. WASDELL, W. K. Jan. 20, 1958 [Feb. 6, 1957], No. 4015/57. Class 108(3) Cylinder 5, Fig. 1, is expanded at X to form an integral recuperation chamber 5a. Rubber member 6, having a wall which tapers in thickness from its open to its closed ends, provides an oil seal in conjunction with ring 10 and cap 8 and an air reservoir for recuperation and compensation. Hole 8b maintains the air in the recuperation chambers at atmospheric pressure. For use with shock absorbers of smaller diameter, a rubber member shaped as shown in Fig. 2 is employed. The seal between piston rod 11, Fig. 1, and cylinder 5 is provided by rubber seal 16 urged into contact with gland plate 15, by ring 13 and spring 14. Gland plate 15 has circular grooves 15b. Specification 726,898 is referred to.
Patent GB-479636-A (GB)
Title: Improvements in foundations for buildings
IPC: E04H9/02
Filed: 1937-02-11
Abstract: 479,636. Foundations for buildings. HELLBRUCK, C. Feb. 11, 1937, No. 4122. [Class 20 (ii)] A foundation for a building comprises a rigid supporting framework disposed above the ground level and a number of independent pillars disposed below ground level, the supports being capable of free and independent movement with respect to the supporting framework under earth movements or subsidence and the horizontally directed forces resulting therefrom. The supporting framework a has its members connected by corner plates and is stiffened by crosswise beams b, e and also by diagonal stiffeners c forming triangular areas each of which is supported at its corners on independent pillars d. The pillars d are sunk below the level of the ground and adjusting screws i are disposed between the supporting framework and each pillar, accessible at all times for adjustment. Indicating means, comprising contacts m on the supporting framework and each pillar, and wiring leading to an indicator is provided, whereby the subsidence or upheaval of each pillar is recorded electrically, so that any change of position in the supports can be traced and rectified. The earth between the supports may be excavated to form a cellar, in which case boundary walls may be used between the peripheral supports.
Patent GB-755644-A (GB)
Title: Improvements in or relating to processes for the recovery of growth-stimulating factors
IPC: A61K35/747
Filed: 1954-02-12
Abstract: Vitamins are obtained from micro-organism fermentation broth residues or fish solubles by contacting their aqueous solutions with an activated earth or a water-miscible C1-3 alcohol or ketone, or a phenolic compound or activated carbon when in this latter case the vitamins are eluted therefrom by a mixture of a base, water and a C1-3 alcohol or ketone, or combinations of such processes.  Hot dimethyl formamide may be used to extract the vitamins from dry concentrates obtained as above, or from dry fish solubles or solid fermentation residues or to the solutions treated as above, or combinations thereof. The vitamins, in the original solution or after concentration can be separated into two active fractions by contacting their aqueous solutions with a cationexchange resin.ALSO:Growth-stimulating factors are obtained from micro-organism fermentation broth residues or fish solubles by contacting their aqueous solutions with an activated earth or a water-miscible alcohol or ketone having 1-3 carbon atoms.  In modifications, the solution is contacted with activated carbon and the factor eluted therefrom with a mixture of a base, water and an alcohol having 1-3 carbon atoms, or the adsorption on carbon followed by elution may be applied to concentrates obtained from contacting with activated earths or C1-3 alcohol or ketone or a combination of both.  Dry concentrates of the factor may be extracted with hot dimethylformamide, or such extraction may be applied directly to dry fish solubles or solid fermentation residues, or to the solutions contacted with activated earths or C1-3 alcohols or ketones, or to solutions contacted with activated carbon and subsequent eluation, or to combinations thereof.  Phenolic compounds may be used to extract the factors, either directly on the original solutions or after some concentration of the factors has been obtained.  The factors in the original solution or after concentration can be separated into two active fractions by contacting their aqueous solutions with a cation-exchange resin. The factors are added to food for animals.
Patent GB-755117-A (GB)
Title: Improvements in or relating to optical brightening agents
Inventor: APPLETON HENRY BEILBY
IPC: C07D311/16
Filed: 1954-02-12
Abstract: The invention comprises 4 : 6-dimethyl-7-methylamino-coumarin and the process of making it by refluxing an alcoholic solution of N-methyl-m-aminocresol and ethyl acetoacetate with zinc chloride and hydrolysing the resultant zinc chloride addition product of the desired coumarin.  An example is given of the process.ALSO:Fibrous materials are brightened by treating them at any stage of their manufacture with 4:6 - dimethyl - 7 - methylamino - coumarin in an aqueous liquor.  Wool, silk, nylon and cellulose acetate may be so treated in acid, neutral or alkaline baths, to which may be added washing agents such as soaps, alkaryl sulphonates, salts of sulphated higher alcohols, polyglycol ethers, polyphosphates, silicates, borates and sodium sulphate. In the examples (1) bleached wool is treated with the coumarin and optionally formic acid also; (2) wool is dyed with Alizarine Brilliant Blue B and the coumarin added towards the end of the dyeing; (3) nylon is treated with the coumarin; (4) cellulose acetate is treated with the coumarin; (5) textile materials of animal or polyamide fibres are washed with soap composition containing the coumarin and the auxiliary agents specified above Specification 655,296 is referred to.ALSO:Washing compositions for textile materials contain soap or other detergent together with 4 : 6 - dimethyl - 7 - methylamino - coumarin.  There may also be present builders such as sodium polyphosphate, silicates, borates and sodium sulphate. Specified detergents are sodium salts of mixed higher fatty acids, alkaryl sulphonates, salts of sulphated higher alcohols and polyglycol ethers.  In examples (1) the coumarin is added to a dry preparation of soap and builders as above, (2) a slurry of soap or other detergent containing builders is mixed with the coumarin (dry or in alcoholic solution) and spray-dried to a powder.  Specification 655,296 is referred to.
Patent GB-1527481-A (GB)
Title: Slide changing mechanism for projectors
IPC: G03B23/06
Filed: 1977-02-02
Abstract: 1527481 Slide projectors PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 2 Feb 1977 [4 Feb 1976] 04264/77 Heading G2J In a slide projector, slide changing and magazine movement are driven by a single motor on depression of a knob 17, which rocks levers 14, 16, thus frictionally engaging bevel gears 2, 3. Gear 2 is driven by a motor, and gear 3 drives by a belt 4 a toothed gear 5 driving wheel 6, which has a set of studs 6b driving a toothed wheel 7b fast with a crank 8 whereby the slide-changing members 11a, 11b are moved. A disc 7a, coaxial with but not connected to wheel 7b, has slots engaged by a pin 6a, so that a gear 7c, fast with disc 7a, is intermittently moved to drive the magazine. When knob 17 is depressed, a lever 13 is moved to release pin 6a and to hold levers 14, 16 displaced so that operation continues after knob 17 is released.
Patent GB-289198-A (GB)
Title: Improvements in lamps for illuminating vehicle number plates and for similar purposes
IPC: B60Q1/56
Filed: 1927-02-15
Abstract: 289,198. Bluemel, F. H., and Bluemel Bros., Ltd. Feb. 15, 1927. Instrument and like boards, lamps for illu. minating.-A lamp for illuminating vehicle number-plates, instrument boards &c. comprises a trough-shaped body a having an opening c in which a. sheet of glass or transparent celluloid d is held, an aperture g at the middle of one side to take a lamp holder i, and a glazed aperture k in the other side opposite the lamp holder aperture. The interior of the lamp body is coated with light reflecting material or a separate reflecting lining e may be fitted. A bracket f is made integral with the socket h and serves to support the lamp on the number plate cr other part. The socket h is made sufficiently large to enable the lamp bulb j to be passed through it. The aperture k may be glazed with coloured glass or celluloid to form the rear light when the lamp is applied to the number-plate of a vehicle. The lamp body a may be made of metal or celluloid and the bracket f may be made integral with the lamp body.
Patent GB-142226-A (GB)
Title: Process of treating cymene
IPC: C07C205/06
Filed: 1919-02-20
Abstract: Impure cymene is nitrated and the nitro-compound reduced, preferably before separation of impurities.  In treating spruce turpentine (a product obtained from the condensate of the gases evolved in boiling spruce wood with sulphite liquor), the liquid is treated with an alkali, such as quicklime, to separate water, sulphur dioxide, &c. The purified liquid or the fraction which boils at about 175 DEG  C. is nitrated by dissolving the liquid in concentrated sulphuric acid, glacial acetic acid, or other solvent, and adding mixed nitric and sulphuric acids whilst cooling.  The reaction mixture is poured into water, and the oily nitrocompound is separated and washed with alkali solution.  The compound may be purified by distillation in vacuo, or may be directly reduced to form aminocymene, by an acid reducing-agent, such as iron and hydrochloric acid, or by hydrogen in the presence of nickel or other catalyst.  The aminocymene may be distilled in superheated steam, or the impurities may be separated by steam distillation after forming the sulphate of the amine.  The nitrocymene may be reduced in alkaline solution to produce hydrazocymene, which may be subjected to the benzidine transformation to produce symmetrical dimethyl diisopropylbenzidine.
Patent GB-1302559-A (GB)
IPC: E06B7/23
Filed: 1970-01-29
Abstract: 1302559 Window and door sealing; fasteners and hinges W FRACH 29 Jan 1970 [31 Jan 1969] 4290/70 Headings E1J E2A and E2F A window or door comprising fixed and movable frames 2 and I has arranged between the frames an inflatable tubular sealing member 6 and a parallel flexible closure strip 5, the closure strip having one longitudinal edge 5a secured to the fixed or movable frame and the other longitudinal edge 5b receivable in a cavity in the other frame and held therein by inflation of the tubular member 6 in the cavity to press the closure strip 5 against a wall of the cavity; along the side of the frame forming the pivot axis for the movable frame the flexible strip 5 constitutes a hinge, and along the. other three sides. the strip forms a fastening releasable by deflation of the tubular sealing member. Preferably the movable and fixed frames 1 and 2 have facings 3 and 8 of steel or aluminium, the cavity being formed in the facing of the relevant frame, and one of the facings is formed along one edge with a rod 4 which rolls on a slide bar 7 (or 18) attached to the other facing when the window or door rotates. The part of the facing 8 contacted by the strip 5 may be corrugated. In alternative embodiments, an auxiliary bar 15 is provided slidable in the cavity, or pivoted at one edge in the cavity, and having the other edge shaped to press the closure strip 5 against the wall of the cavity when the tube 6 which bears against the bar 15 is infilated. In further embodiments, the tube is formed integrally at 5c on the free edge of the strip 5 and is inflated to retain it in the cavity 19 in the other frame facing. A hydraulic or pneumatic pressure circuit is used to selectively inflate or deflate each of the four tubes 6 along the sides of the window or door and to control a double-acting piston-cylinder system which actuates the window or door operating mechanism.
Patent GB-816999-A (GB)
Title: Method of producing magnetisable grain-orientated sheet or strip
IPC: C22C38/02
Filed: 1958-02-10
Abstract: Grain oriented magnetizable sheet or strip of iron alloys containing silicon and/or aluminium, produced by rolling and heat treatment to give a direction of magnetizability in the rolling direction and/or transversely thereto, is subjected to an ageing treatment after the final cold rolling stage.  The sheet or strip may be aged at temperatures up to 300 DEG C., e.g. 1 to 10 hours at 100 DEG C. or 2 to 10 days at room temperature.  When the final heat treatment is not performed immediately following the ageing treatment the material is preferably stored at a temperature of 0 DEG C. or below.  In two examples the method is stated to result in over 90 per cent of the material having a cubic structure.
Patent GB-365355-A (GB)
Title: Improvements in or relating to door checks
IPC: E05F3/06
Filed: 1931-02-12
Abstract: 365,355. Door closing and check apparatus. TONKS, W. H., 201, Moseley Street, Birmingham. Feb. 12, 1931, No. 4348. [Class 65 (i).] In a spring-closing and fluid check apparatus for doors, of the kind in which a lever rotating with the door engages one or more spring- controlled levers and also a cam connected with the check, 'the cam is pivotally connected with the check and is constrained to move along a rectilinear path. Fig. 1 shows a floor spring according to the invention, in which a lever d fixed to the door pivot n carries a roller e engaging with two arms pivoted at q and controlled by a spring c. The lever d also carries a roller f which works in a slot in a cam g pivoted at h to the piston of the check cylinder j, the cylinder being pivoted at k. The cam is guided, as shown in Fig. 3, in which the spring gear is removed, by slides l pivoted to it and working with slight play in grooves m in the bottom of the case of the apparatus, and by a roller r engaging in a groove s but having some side play; the play of the slides l and roller r allows slight angular movement of the cam, and prevents sticking. The oil for the check is contained in the case and lubricates the mechanism. The piston and cylinder of the check may be interchanged. According to the Provisional Specification, the check cylinder may be fixed rigidly, the connection of the piston with the cam being such as to allow of lateral as well as angular relative movement. Specifications 221,026 and 251,873, [both in Class 65 (i), Door and gate operating-appliances &c.], are referred to in the Provisional Specification.
Patent GB-939150-A (GB)
Title: Film forming composition of copolymers of ú¯-vinyl-ª -caprolactam
IPC: A61K8/81
Filed: 1962-02-05
Abstract: Copolymers of N-vinyl-e -caprolactam and 5 to 20% of a vinylester of 3 to 8 carbon atoms, of an alkyl acrylate of 4 to 5 carbon atom, an acrylamide, an acrylonitrile or an alkyl vinyl ether of from 3 to 4 carbon atoms are used in film forming compositions for hair treatment.  Solvents such as lower alcohols, methylene chloride and acetone together with a liquified propellant, e.g. chlorofluoro hydrocarbons of the methane and ethane series may be used to produce an aerosol.  U.S.A. Specifications 2,265,450 and 2,335,454 are referred to.
Patent GB-1079791-A (GB)
Title: Improvements in or relating to extrusion apparatus
IPC: B29C48/47
Filed: 1965-02-01
Abstract: 1,079,791. Ceetripetal extruders. HERCULES Inc. Feb. 1, 1965 [Feb. 19, 1964], No. 4372/65. Heading B5A. [Also in Division B1] An extrusion moulding machine, or plasticizer, for use in conjunction with injectionmoulding machines, is particularly intended for use with synthetic thermoplastic resins, and comprises a fixed disc 1 provided with a spiral ridge 2, and an imperforate disc 7 mounted for rotation with a screw impeller 23, the discs 1 and 7 and ridge 2 forming a helical passageway between a hopper 17 and a central aperture 4. Disc 1 is provided with electrical or fluid heaters 21, and in operation, material fed from hopper 17 by screw impeller 18 and/or by gravity is urged along the helical passageway by disc 7, the material being plasticized prior to emergence through aperture 4. It is stated that the decrease in volume of the material consequent on plasticization is compensated for for by having channel (O), Fig. 2 (not shown), of greater width than channels (3), which are of equal width, and by the fact that the velocity of the material-contacting surface of disc 7 increases towards its periphery. Also blending, e.g. of polymers with additives such as lubricants, stabilizers or pigments, is effective in the helical passageway since substantial reverse flow of the material may take place. Disc 7, Fig. 3, is axially adjustable by movement of a ring 13 on threaded shaft 14 and barrel 24 of impeller 23 may have heaters 27 similar to heaters 21. In a second embodiment, Fig. 1 (not shown), the screw impeller is dispensed with. Materials mentioned are polypropylene, polyethylene terephthalate and carbon black as an additive. Types of extrusion mentioned are film, filament and tube making, wire coating, pelletizing and in association with blow-moulding.