baber/WOPTO huggingface dataset:
Patent GB-864833-A (GB)
Title: Improvements in the production of alkali metal disulphites
Inventor: SPORMANN WALTER
IPC: C01D5/14
Filed: 1959-09-18
Abstract: In a process for the production of alkali metal disulphite (M2 S2 O5) where M is an alkali metal wherein aqueous alkali metal hydroxide, and/or carbonate solution is reacted with sulphur dioxide, and disulphite is separated from the mother liquor, alkali metal hydroxide and/or carbonate is added to the mother liquor to precipitate metal ions (other than alkali metal ions) and sulphate ions, and after separating the precipitate the liquid is reacted with further sulphur dioxide for the production of further alkali metal disulphite.  Sufficient alkali metal hydroxide or carbonate is added to bring the pH to between 7 and 12.  In an example potassium hydroxide is added to a solution of crude potassium disulphite containing iron and potassium sulphate, and after removing the resulting precipitate the solution is reacted with sulphur dioxide.
Patent GB-223438-A (GB)
Title: Improvements relating to machines for drying and ironing starched linen
IPC: D06F69/02
Filed: 1923-12-19
Abstract: 223,438. Tullis, D. K. Dec. 19, 1923. Ironing-machines with endless aprons and conveying members.-In an ironing-machine of the kind in which the clothes after passing between a steam-heated roller 1 and an endless apron 2 are passed to a series of Decoudun machines 3, the final guide roller 7 of the endless apron is grooved so that the apron is passing over this roller becomes corrugated. Associated with the corrugations is a number of separate strippers 8 to engage the clothes. The strippers may be replaced by conveyer bands embracing rolers, and the roller 7 may be in the form of a hyperboloid of revolution or it may be barrel shaped. Specification 7826/95 is refered to.
Patent GB-1209440-A (GB)
Title: Apparatus for processing felled trees
IPC: B23Q7/04
Filed: 1969-06-24
Abstract: 1,209,440. Woodworking. BELOIT CORP. 24 June, 1969 [30 Aug., 1968], No. 31857/69. Heading B5L. Apparatus for processing felled trees comprises a tree-advancing mechanism 30 mounted for movement in a first direction, and a delimbing mechanism 60 mounted for movement in an opposite direction. The mechanisms are mounted for movement on guide rails 14, 16 of a frame 12 having cradles 18, 20 at its ends for supporting a felled tree 10. A truncated cone 22 guides the tree into a shear mechanism 24 provided with blades 26 for cutting the tree into lengths. The tree-advancing mechanism consists of a carriage 32 having upstanding pairs of plates 40, 42 supporting shafts 44, 46. A pair of jaws 48 are pivotally mounted on the shafts 44 and hydraulic cylinders 50 are mounted between the jaws and shafts 46 and are operable to cause the jaws to grip and release the tree. The delimbing mechanism 60 is similar to the tree-advancing mechanism but, instead of jaws, has a pair of curved delimbing blades 64. The mechanisms are respectively movable along the guide rails by hydraulic cylinders 72, 72a controlled by a valve 86. In operation, the cylinders 50 are actuated to grip the tree and the valve 86 positioned so that the mechanism 30 advances the tree towards the shear mechanism 24 at the same time as the mechanism 60 moves in the opposite direction to cut the limbs from the tree. In an alternative embodiment, a chain mechanism moves the mechanisms 30, 60. The frame 12 may be mounted on the chassis of a vehicle.
Patent GB-159688-A (GB)
Title: Improvements in and relating to the steering gear of mechanically propelled vehicles
IPC: B62D3/02
Filed: 1919-12-20
Abstract: 159,688. Grice, A. G. Dec. 20, 1919. Steering-gear. - The steering-link T is actuated by a member B which is operated by cables from the steering-post and is constrained to move in a transverse rectilinear path. The member B consists of a slide riding on a transverse bar and connected to one or more cables W passing round a drum D on the steering- shaft 1 and pulleys P on the opposite side of the vehicle. The cables may be tensioned by adjusting the pulleys P, or the connection between the sliding member B and the ends of the cables may be adjustable.
Patent GB-410503-A (GB)
Title: Improvements in or relating to emulsions for coating leather
IPC: C14C11/00
Filed: 1932-11-14
Abstract: A waterproof finish for leather is made by incorporating an aqueous emulsion of a long chain aliphatic alcohol, containing 10 or more carbon atoms, with an alkaline shellac solution, to form a composite emulsion.  Cetyl alcohol, and the alcohol from lauric acid, are specified, and emulsifying agents such as triethanolamine, casein, glue and gum may be added, together with dyes and other pigments.  As examples:--(1) An emulsion is made from cetyl alcohol, stearic acid, triethanolamine and water, and an ammoniacal solution of shellac is added.  (2) An emulsion is made from cetyl alcohol, stearic acid and an ammoniacal casein solution, and to this are added turkey red oil, a diazo dye, titanium white and an ammoniacal solution of shellac.
Patent GB-643178-A (GB)
Title: Improvements in linear-dimension gauges
IPC: G01B3/00
Filed: 1947-12-08
Abstract: 643,178. Linear-dimension gauges. BRYANT CHUCKING GRINDER CO. Dec. 8, 1947, No. 32358. Convention date, March 31, 1942. [Class 106 (ii)] A linear-dimension gauge, shown adapted for internal gauging, but easily adapted for external gauging, comprises a base 1 having a guideway 2 thereon to receive a mounting for a dial gauge 22 and a support for a pair of feelers 4, the other co-operating feeler 9 being carried on the short arm 7 of a lever 8 pivoted to the base 1, and the long arm 20 of the lever contacting the plunger 21 of the dial gauge. The pivot of the lever 8 comprises transversely arranged leaf-springs 14, 16 secured to a bar 10 on the lever and the base 1. These springs press the arm 20 against a screw stop 30 on the base. The base may be provided with legs.
Patent GB-534102-A (GB)
Title: Improvements in or relating to lathe and like centres
IPC: B23B31/40
Filed: 1939-12-16
Abstract: 534,102. Lathe centres. DORE, A., and HORSTMAN, Ltd. Dec. 16, 1939, No. 32384. [Class 83 (iii)] False centres for use with tubes &c. comprise a body having one or more shouldered steps 12 and a number of slots 14 extending from the front as far as an end 17 that maintains the centre integral after the manner of a collet. Recesses 18 increase the flexibility for expansion to grip the tube under pressure of the lathe centre 16 which engages a surface 15 that is slightly convex. In a modification for use with tubes of larger diameter, a slotted cup 34 is expanded into the recessed end of the tube by pressure of the lathe centre at 31.
Patent GB-354629-A (GB)
Title: Method of and device for washing bottles and the like
IPC: B08B9/34
Filed: 1930-10-28
Abstract: 354,629. Washing bottles. ADAM, H., 67, Keplerstrasse, Heidelberg, Germany. Oct. 28, 1930, No. 32385. Convention date, Dec. 19, 1929. [Class 138 (i).] In bottle washing by means of spray pipes introduced into the neck of the inverted bottles, the spray pipes 4 pass through guide pipes 3 with sufficient play therein to enable air to enter injector fashion as the spray pipe, which is fed with liquid, passes therethrough into the bottle. The presence of intermixed air assists the cleansing process. If a stopper is attached to the bottle it is swept by the liquid and cleaned.
Patent GB-1396536-A (GB)
Title: Production of hermetically sealed articles
IPC: B29D12/02
Filed: 1972-07-12
Abstract: 1396536 Encapsulating RION KK 12 July 1972 32547/72 Heading B5A Hermetically sealed articles are produced by placing the article in a mould cavity, evacuating the cavity, supplying liquid resin and hardener into the cavity at a predetermined pressure, and when the mixture has completely filled the cavity, terminating supply of the mixture thereto and the evacuation, thereby restoring the cavity to atmospheric pressure and allowing the mixture to harden. The article may be an amplifier unit for a hearing aid in a spectacle frame, or a bimorphic piezoelectric element of Rochelle salt, previously coated with a vinylidene chloride resin. The encapsulating resin may be an epoxy resin, a polyurethane, a polyester, a silicone resin or a polysulphide resin. The apparatus, Fig. 2, may comprise a container 12 having a lid 14 with a glass panel 16 containing a mould 20 having moulding cavities 22, interconnected by a feed runner 24. Articles to be encapsulated are placed one in each cavity 22, pot 30 filled with resin mixture from weighing and mixing unit 38, valve 34 being closed. Container 22 is connected via valve 42 to vacuum pump 40. When the desired pressure is detected by sensor (50, Fig. 1, not shown) on manometer (48), valve 34 is opened and the resin supplied to the mould 20. When it overflows through apertures 26, it is detected by limit switch 28 which closes valve 34, turns valve 42 to connect container 12 with atmosphere through line 44 and stops pump 40. Lid 14 is automatically opened. Mould 20 is removed and the resin allowed to solidify. A further pressure sensor (52) will prevent excessive pressure decrease by switching off pump 40.
Patent GB-521834-A (GB)
Title: Production of coloured pictures
IPC: G03C7/26
Filed: 1938-10-22
Abstract: 521,834. Colour photography. SCHINZEL, K., and SCHINZEL. L. Oct. 22, 1938, No. 32573/39. Convention date, Oct. 22, 1937. Divided out of 521,746. [Class 98 (ii)] In the production of a three-colour photograph in exposed material comprising three differentially colour-sensitive silver halide emulsions each containing a different dye-forming substance, which is either a leuco form of a dye such as the leuco esters and ester salts of vat dyes, an ester from thioindoxyl or indoxyl or from compounds which on oxidation give lignone dyes, or compounds derived from the anthrone forms of anthraquinone dyes and having saltforming acid radicals, the latent images or the residual images remaining after the development of the latent images to silver are developed with a neutral or alkaline developer which produces simultaneously with a silver image a development product consisting of an organic compound containing one or several groups in the nucleus capable of oxidizing the leuco dyes when acidified, and the material is treated with acid to cause the development product to oxidize the dye forming substances to form dye images. In a modification, the images are developed to silver and the oxidizing organic compound is produced by treating the material with a solution of a quinone, quinonesulphonic acid or a halogen derivative of either of these in the presence of potassium bromide. Coupling developers may be used which contain as the coupling component phenols or naphthols of high molecular weight or substituted by a large number of chlorine or bromine atoms, such as 2 : 3 : 5 : 6 - tetrachlor - or - tetrabrom-phenol or tribromophenol. The developing agents may be oo<SP>1</SP>-dichlor- or dibrom-p-aminophenol, higher halogen derivatives of p-aminophenol, or o-aminophenol. Hydroquinone substituted by diphenyl or phenyl which may be halogenated is also suitable as a developing agent. Reduced indoloanthrone, its homologues, analogues, and halogen substitution products are particularly suitable for use as developing agents. Potassium iodide or bromide or a bromate (in which lastmentioned case dyes such as safranine or compounds such as formamidine disulphide of thiourea may be present) may be added to the acid solution. The developing agent or the coupling component may contain nitroso, iodo, iodoso, chlorylsulphamido, or bromylsulphamido, dichlorylsulphamido, or dibromylsulphamido groups. Couplable organic peroxides may be employed. The dye-derivatives and the material may be as described in Specification 521,888. Specifications 379,679. 498,869, 498,870, 500,826, 503,752. 520,173, 521,833 and 523,296 also are referred to.
Patent GB-196634-A (GB)
Title: Improvements in and relating to sound records
IPC: G11B3/00
Filed: 1922-11-30
Abstract: 196,634. White, A. E., (Metal Recording Disc Co., Inc.). Nov. 30, 1922. Right to Patent relinquished. Records, blanks for.-A blank upon which sound may be recorded by means of an ordinary gramophone consists of a tablet 1 of resistant composition or metal such as spelter, on which a volute groove 3 is initially formed, preferably by engraving. In use, the blank is rotated with the stylus 4 of the ordinary reproducing sound-box in engagement with the groove 3, which serves to guide the stylus. Vibrations of the diaphragms, caused by singing &c. into the apparatus, are recorded in the walls of the groove 3. The groove is preferably arcuate in cross-section, with a comparatively large radius, Fig. 5, or it may be angular, Fig. 4, the walls diverging at a large obtuse angle. Reference has been directed by the Comptroller to Specificatione 4315/97, 6613/06, 26529/11, and 153,087.
Patent GB-543288-A (GB)
Title: An improved manufacture of hose for conducting steam
IPC: F16L11/06
Filed: 1939-12-22
Abstract: 543,288. Hydrocarbon polymer compositions ; pipes and tubes. STANDARD OIL DEVELOPMENT CO. Dec. 22, 1939, No. 32761. Convention date, Feb. 2. [Class 2 (iii)] [Also in Group XXVIII] A hose for conducting high temperature steam is formed from a co-polymer of isobutylene and butadiene compounded with sulphur under vulcanizing conditions and with mineral filler material such as whiting, zinc oxide, carbon black, asbestos fibre, mica, rouge, clay and inorganic pigments. In an example, the co-polymer is compounded with sulphur, zinc oxide, tetramethyl thiuram disulphide, phenyl #-naphthylamine, clay and mercaptobenzothiazole, and extruded in tubular form ; the tube may be covered with a fabric formed of fibres such as spun asbestos or threads of cotton or syntnetic silk, further layers of polymer and fabric being applied if desired. The tube is then heated, preferably within a mould by the application of gas or fluid pressure witnin the tube, to effect the reaction between the polymer and the sulphur. A wrapping or braiding of steel wire and a further layer of compounded polymer may then be applied. Specifications 513,521, 523,248, 536,876 and 540,285 are referred to. According to the Specification as open to inspection under Sect. 91, moulded articles, e.g. pipe gaskets, floor coverings, sheet material, table ware, decorative articles, stage curtains and scenery, fire screens and protective clothing, are formed from a co-polymer of an iso-olefine and a conjugated diolefine in admixture with one or more comminuted materials. Additional fillers specified are cork, wood flour, cotton fibre and paper pulp. In examples, (1) a pipe gasket is prepared from a composition comprising a co-polymer of isobutylene and butadiene, asbestos fibre, sulphur, zinc oxide, tetramethyl thiuram disulphide, phenyl #-naphthylamine, stearic acid and mercaptobenzothiazole. (2) A composition for a floor covering comprises the co-polymer, cork, clay, sulphur, zinc oxide, tetramethyl thiuram disulphide and mercaptobenzothiazole and (3) and (4) moulded articles such as table ware and decorative articles are prepared from compositions comprising the co-polymer; sulphur, zinc oxide, tetramethyl thiuram disulphide and either wood flour, a dye and the zinc salt of mercaptobenzothiazole or whiting, rouge or chrome green and mercaptobenzothiazole. This subject-matter does not appear in the Specification as accepted.
Patent GB-449009-A (GB)
Title: Improvements in or relating to automatically controlled high temperature furnaces
IPC: C21D11/00
Filed: 1934-11-14
Abstract: 449,009. Automatic control systems; bricks accommodating thermocouples. BETHLEHEM STEEL CO., Bethlehem, Pennsylvania. U.S.A.-(Assignees of Davis, H., and Fister, L. H.) Nov. 14, 1934, No. 32780. Convention date, Nov. 14, 1933. [Class 38 (iv)] [See also Groups X and XX] Temperature.- The refractories in the roof of an open-hearth or other high temperature furnace are protected from overheating by temperature responsive means protectively embedded in the roof and operating to control the elements of combustion to shunt off or decrease the heat supply when a predetermined temperature has been reached and to restore it when a safe working temperature is attained. The same principle applies to an electric furnace, a boiler furnace or any high temperature furnace. A thermocouple or its equivalent 50 is protected by a fused silica tube 53 and installed in a hole 55 in a refractory brick 52 situated where the heat is greatest, or where the refractories are subject to severe cutting by the flame. The brick may have several holes of varying depths so that as it deteriorates the thermocouple can be placed in a hole of less depth. The hole burned through being plugged with refractory material. The thermocouple is connected to an indicating or recording pyrometer 56 provided with a two-way electric actuator with adjustable contacts 63, 64, adapted to energize alternatively two circuits connected to operate solenoids 57 coupled to a bleeder valve 58 in an automatic airpressure system controlling the regulators for fuel and air supplies or fuel supply only of a reversible furnace utilizing producer gas and mixed gas. In the Specification as open to inspection under Sect. 91 a control system for an electric arc furnace was also described wherein the actuator energized or short circuited a relay controlling the closure and tipping of an cutswitch in the circuit supplying a three-phase arc furnace. This subject-matter does not appear in the Specification as accepted.
Patent GB-822411-A (GB)
Title: Improved blank feeding means
IPC: B65B43/14
Filed: 1956-10-26
Abstract: 822,411. Feeding sheets. MEAD PACKAGING Inc., [formerly MEAD-ATLANTA PAPER CO.]. Oct. 26, 1956 [June 25, 1956], No. 32786/56. Class 100(1) Sheets in a pile supported on two oppositely-rotating gapped discs 23 and between their vertical axes, are separated succesively from the bottom of the pile by the action of two vertically-reciprocating suckers 45,which pull down the opposite edges of a sheet, and separation is completed by the gapped discs moving in between the bottom sheet and the rest of the stack. The separated sheet is then engaged and held between shoes and leaf springs 57 on two holding means 53 over conveyer chains 14 which then convey the sheet away. The invention is described as applied to a wrapping or packaging machine and described in Specification 797,148 [Group XVII). Each disc 23 is mounted for vertical adjustment on a shaft 24 driven through bevel gears 25 from a shaft 26 connected to the main drive. Tubular posts 34 fitted over extensions of the shafts 24 serve to position the sheet pile laterally. As shown in Fig. 4, the discs are formed with a diametric arm 35 having a peripheral arm 36 at each end extending therefrom and forming a pair of openings 37 in the disc periphery and extending adjacent the disc axis. Each arm 36 is formed with an open-ended slot 38 through which the related sucker 45 rises to grip the edge of the bottom sheet and draw it down within the adjacent opening 37 and below the level of the leading end of the following arm 36, so that the latter can pass over the bottom sheet and below the rest of the pile, thus completely separating the bottom sheet from the pile. The suckers 45 are each on a tube 46 carried at the ends of parallel arms which are reciprocated by a face cam 52 on the shaft 24. The grippers 57 on the holders 53 are each supported adjustably by a lever 56 pivoted at 54, and is oscillated by a cam 60 to move to and from a position beneath a disc 23 to grip and position a separated sheet before it is taken by hooks on the chains 14 to a further position in the' machine. The pile of sheets is laterally supported by the posts 34 on the discs 23, and supported in the other directions by frame guides the bottom ends of which can extend below the top faces of the discs by reason of grooves 42 formed in the discs. Specification 822,412 also is referred to.
Patent GB-1409847-A (GB)
Title: Emergency circuit breaker for batteries
IPC: H01M50/574
Filed: 1973-07-10
Abstract: 1409847 Inertia switches; thermal switches; batteries combined with switches TUDOR AB 10 July 1973 [11 July 1972] 32841/73 Headings H1N and H1B An acceleration-responsive switch located in the internal circuit of a vehicle storage battery comprises a pair of fixed contacts 6, 7 a movable contact element 8 biased towards its open position but held in its closed position in contact with the fixed contacts 6, 7 by an overriding spring 10, and a movable mass 16, not directly connected to said spring, mounted for movement in response to predetermined acceleration so that the spring 10 becomes ineffective and the movable contact element 8 moves to its open position. As shown, the switch is in a container 4 which may be integral with a partition 2 between two cells and is closed by the battery cover 3 to provide a receptacle 5 containing oil for spark suppression and to damp the movements of mass 16. Fixed contacts 6, 7 with bridge 8 form the current connection between two adjacent cells. Springs 17 or a diaphragm (24, Fig. 2, not shown) normally centralize mass 16 but in a collision mass 16 impinges upon plate 11 (Fig. 1) causing pin 12 to pivot about the edge of hole 15 and slide off a pin 13 depending from screw cap 14. This allows plate 11 and spring 10 to rise, whereupon spring 9 reasserts to lift contact 8 and open the battery circuit. Removal and replacement of cap 14 resets the switch and closes the battery internal circuit again. In the embodiment of Fig. 3, plate 11 is held by a tube 18 secured to a pin 19 by thermoplastic adhesive and surrounded by a heat coil 20, one end of which is connected to contact element 8 via plate 11 and spring 10, while the other end is connected to an annular contact 21 spaced from plate 11 by an air gap. Ring 16 has insulation 22 and is connected by a lead 23 to the battery at a potential different from that of contact 8. On impact ring 16 engages annular contact 21, coil 20 is energized and melts the adhesive to allow pin 19 to move into tube 18, thus relieving spring 10 and allowing spring 9 to open contacts 6, 7, 8. In a further embodiment (Fig. 4, not shown) the spring 10 is relatively long and tightly wound and movement of the mass 16 buckles the line of the spring reducing its overriding effect to allow a contact bridge (8b, 8c) to leave contacts 6, 7.
Patent GB-288113-A (GB)
Title: Improvements in signs
IPC: G09F3/20
Filed: 1927-12-05
Abstract: 288,113. Fairbrother, H., (Card Display, Inc.). Dec. 5, 1927. Securing. - Price tickets 3 are adhesively fixed at the back of a cardboard frame 1, so as to be seen through the frame opening 2, by strips 5 of gummed paper applied over the tickets as shown in Fig. 2. The opening 2 is edged in a colour contrasting with the frame colour, e.g. with a white frame, black edging 4 is provided, and the tickets are spaced slightly apart. The tickets may be affixed to the frame by a coating strip of adhesive on the frame at the upper and lower edges of the opening 2.