baber/WOPTO huggingface dataset:
Patent GB-1408523-A (GB)
Title: Process for regenerating spent photographic silver bleaching solutions
IPC: G03C7/42
Filed: 1973-04-27
Abstract: 1408523 Regenerating photographic silver bleaching solutions; automatic control of concentration AGFA-GEVAERT AG 27 April 1973 [27 April 1972] 20157/73 Headings G2C and G3R A photographic silver bleaching solution containing alkali metal ferricyanide, iron (III) complex, or complex-free iron (III) salts or copper (II) salts, and alkali metal halide is regenerated by reoxidation with bromine of the ferrocyanide formed, a quantity of bromine equivalent to the concentration of ferrocyanide at any given time being produced continuously in aqueous solution in a closed vessel controlled by the redox potential of the bleaching solution and being run into the bleaching solution under the surface of the solution. The bromine may be formed by reaction between alkali metal bromate and HBr, alkali metal bromate, alkali metal bromide and HCl, alkali metal bromate, alkali metal bromide and orthophosphoric acid, or hydrogen peroxide and HBr. The bleaching solution may be continuously removed from a processing tank, reoxidized while in through-flow and returned to the tank by a pump circulatory system. While the bleaching solution is being regenerated, other processing baths particularly those in which the concentration of active substances varies in proportion to the quantity of elementary silver bleached in the bleaching bath may be regenerated at the same time by the addition to each bath of the appropriate regenerating solution in a quantity which is proportional to the quantity of bromine required for regenerating the bleaching solution, the quantity being controlled by the redox potential measured in the bleaching solution. The other processing bath may be a developing, fixing, buffering, hardening or stabilizing bath. The apparatus disclosed comprises a control instrument 326 comprising a direct current amplifier 327, electrode leads 324 and 325, and a mV-measuring instrument 328 with lower and upper limit voltage contacts 329 and 330, connected to a dosing unit 331 containing a common drive motor 332 for two dosing pumps 333 and 334 which are connected at the input end to the storage tank for hydrohalic acid 335 and storage tank for oxidizing agent 336 by flexible tubes while the output ends are connected to inlet tubes 301 and 302 of a reoxidation apparatus. The threshold contact 330 is adjusted to the redox potential corresponding to the required ratio of potassium ferricyanide concentration to potassium ferrocyanide concentration in the solution being reoxidized the motor 332 being switched off when the redox potential reaches that to which contact 330 is adjusted. The threshold contact 329 can be used to signal when the potassium ferrocyanide concentration exceeds a previously adjusted maximum level. A relay may be connected to contact 329 so that the dosing unit 331 is switched off as soon as the redox potential drops below the value to which contact 329 is adjusted.
Patent GB-422921-A (GB)
Title: Improved type of electric accumulator
IPC: H01M10/18
Filed: 1933-07-18
Abstract: 422,921. Batteries. CONSTABLE, A. D., Pine Grove House, Weybridge, Surrey. July 18, 1933, No. 20258. [Class 53] An accumulator is provided with bi-polar electrodes each of which consists of a single sheet of insulating material formed with recesses on opposite sides in which are metal members joined together by a conductor passing through the insulating sheet. Active material is packed in the recesses in or around the metal members. In a modification holes passing through the insulating sheet are substituted for the recesses. Fig. 4 shows a portion of an electrode consisting of an insulating sheet 1 provided with recesses 3 in which star shaped metal members 6<a> are placed connected together by a neck 6<b> projecting from one of the members. Spaces 6 are left for the reception of active material. Fig. 13 shows a modification in which metal cups 16 are let into the recesses and are connected by rivets 17. The cups are filled with active material. Fig. 12 shows a further modification in which double metal cups having a common base 15 are inserted in holes in an insulating sheet 1. The end plates as shown in Fig. 5, are provided with recesses and metal members 6<a> on one side only, the members 6<a> being connected to conducting bars 4 which are connected to the bus bars of the accumulator. The electrodes may be spaced apart by strips 10 and dowels 9 as shown in Fig. 2, and separators of glass wool, ebonite or wood may be placed between the electrodes. The plates 1 and strips 10 may be clamped together or if made of ebonite they may be joined together by vulcanization. According to the Provisional Specification a sheet of lead may be embedded in the insulating sheet and form a common back to the recesses in the insulating sheet.
Patent GB-220459-A (GB)
Title: An improved support for indoor aerials
IPC: A47G1/16
Filed: 1923-08-10
Abstract: 220,459. Gill, R. B. Aug. 10, 1923. Hooks fixed to walls and flat surfaces.-A moulding-hook for use in supporting indoor aerials comprises a picture-hook A having a smaller hook c formed by pressing out a triangular portion of the upper curved part of the hook A, and bending it upwards and backwards, as shown. The aerial is thus connected to the hook c above the upper supporting point of the hook A, so that the pull tends to make the hook A grip the moulding more firmly. Specification 9593/05 is referred to.
Patent GB-875452-A (GB)
Title: Improvements relating to fish-skinning apparatus
Inventor: SAVILLE LORENTZ
IPC: A22C25/17
Filed: 1959-06-15
Abstract: 875,452. Fish, skinning. FISADCO Ltd. June 9, 1960 [June 15, 1959], No. 20429/59. Class 28 (2). A fish fillet 4 fed between rollers 1 and 3 causes the roller 3 to move down towards a cleaning roller 17, the roller 3 rocking down with its end support levers 7 which pivot about the roll axis 2, so that pivot 8 of the knife 5 rocks the knife 5 about 10 into contact with the fillet 4, to cut through the fillet to the skin. The amount of this rocking is stopped when the roller 3 contacts a cleaning roller 17, thus determining the thickness of skin to be cut off. The knife may be reciprocated longitudinally.
Patent GB-840255-A (GB)
Title: An improved retractible roof unit for vehicles
IPC: B60J7/16
Filed: 1958-06-26
Abstract: 840,255. Collapsible vehicles. HAYDEN, L. G. Feb. 3, 1959 [June 26, 1958], No. 20484/58. Class 108(1) An extensible roof device for fitting to an aperture in a vehicle roof comprises a frame 7 to the sides and ends of which are hinged panels 8, 9 at 8a and 9a respectively. The upper edges of the end panels 9 are provided with guide rods 18 which engage in guides 19 formed in the roof part 10 and when the panels 9 are erect they are maintained in position by the slots 19b at the ends of the guides 19. The side panels 8 are retained by fasteners 25. The roof 10 is shaped on its lower edges to conform to the vehicle roof.
Patent GB-982086-A (GB)
Title: Bar continuous casting plant with device for straightening the curved bar
IPC: B21D3/05
Filed: 1963-05-22
Abstract: 982,086. Continuous casting; straightening. DEMAG A.G. May 22, 1963 [June 29, 1962], No. 20503/63. Headings B3E and B3F. A device for straightening cast bars which have been cast vertically and curved horizontally comprises an upper roll 2 and a lower roll 3, the lower roll being mounted in a train of straightening rolls 4, 5, 6 and the upper roll 2 being adjustable by means 7 to suit bars of various sizes. An arm 8 connected to the spindle of roll 2 carries a straightening roll 9, which has adjusting means 10, and acts in co-operation with the last roll 6 in the lower train.
Patent GB-1038472-A (GB)
Title: Brushless self-regulating alternator
Inventor: RAVEN JOHN MOELYN
IPC: H02K19/38
Filed: 1964-05-19
Abstract: 1,038,472. Alternators. BRUSH ELECTRICAL ENGINEERING CO. Ltd. March 11, 1965 [May 19, 1964], Nos. 20532/64 and 29398/64. Heading H2A. A single-phase alternator of the type having a rectifier 10 carried on the rotor for selfexcitation, has two stator windings A, B of two and four poles respectively, the rotor carrying a pick-up winding C responsive to both pole-numbers, and feeding the field windings D through the rectifier. If the machine is of salient-pole type shown, the pick-up coils C are wound partly in pole-face slots, the turns being completed under the pole-caps. If the rotor is of cylindrical type the winding C may consist of two windings, one for each polenumber, and connected in series or parallel. Excitation of field-winding B is derived from output winding A through rectifier 3 and transformer 4. The load is 7.
Patent GB-499658-A (GB)
Title: Improvements in or relating to the manufacture of bottle or the like cap linings
IPC: B21D51/46
Filed: 1937-07-26
Abstract: 499,658. Liners for bottle caps. EGNELL, E. H. July 26, 1937, No. 20605. Convention date, Jan. 16. [Class 125 (iii)] The cork disc 7 which lines a bottle cap is provided with a " spot '' of tinfoil, cellulose derivative, &c. which is pressed into a score 13 in the disc. The edge of the " spot " 12 becomes folded on itself while being introduced into the score. A plunger 14 locates the tinfoil &c., and a tool 15 presses the marginal portion into the score. The disc is released by retracting a plunger 8 and is pushed out by the plunger 14 thereupon closing the score.
Patent GB-914057-A (GB)
Title: Improvements in or relating to bottle sealing machines
IPC: B67B3/06
Filed: 1959-06-16
Abstract: 914,057. Applying closures. BENDERWERKE G.m.b.H. June 16, 1959 [Aug. 9, 1958], No. 20649/59. Class 125(2). A guide for a closure particularly of the kind having a pull tab in a bottle sealing machine comprises a base plate 1 and a cover plate 8 mounted to be moveable against the action of spring 9 and two side plates 6 and 22 to form a passage through which the closure 23 passes. The cover 8 is supported on a spring 21 and has a series of cams 17 on its surface which are engaged by a roller 16 on a rotating seal container 13 to reciprocate the cover plate vertically and so subject the closure to periodical compressions whereby any tabs which are displaced upwardly or downwardly are bent back to their proper positions. An observation slit 12 is provided in the cover plate.
Patent GB-274662-A (GB)
Title: Improvements relating to castors
IPC: B60B33/02
Filed: 1926-08-21
Abstract: 274,662. Perin-Walsh Co., and Perin, D. W. Aug. 21, 1926. Castors.-A castor for trucks and the like of the type having locking means for preventing swivelling, is mounted on an attachment plate which also carries the locking means as a complete unit. The locking means comprises a lever or pawl 22 co-operating with quadrantal notches 21 in the upper rim of the yoke or horn piece 4. Ball and roller races are provided between the yoke and the attachment plate 1. A lock against rolling is also provided and consists of an operating lever 18 with an axial connecting-rod 16 actuating a pawl 13 engaging notches 11 in the sides of the castor wheel rim.
Patent GB-290865-A (GB)
Title: Improvements in and relating to stop-cylinder printing presses
IPC: B41F3/00
Filed: 1927-08-05
Abstract: 290,865. B³ttner, A., and Schnellpressenfabrik Akt.-Ges. Aug. 5, 1927. Cylinder r machines ; tripping-arrangements. -A stop-cylinder machine is fitted with a fork f at the end of a lever d to engage a bolt z for stopping the cylinder normally during the return of the bed. The fork f is however slidable in the lever d, which is oscillated by a cam a and rod c, and if it is desired to prevent the printing rotation of the impression cylinder F, the fork f is depressed by means of a spring-controlled lever g which has a curved slot g<2> to allow of the normal movement of the fork to unlock the cylinder. The lever g is operated by a forked rod 10 pivoted to a lever 13 fitted with a roller 16, and this roller is engaged by a cam 18 when this is moved along the operating shaft m by depressing a pedal 25 connected by link- and-lever mechanism 24, 23, 22, 2.1, 20 with the cam 18. When the lever g is thus depressed a locking clip g' on the lever g engages the bolt z and holds the cylinder during the working stroke of the bed. On the return of the bed the mechanism is re-set by a cam 8 acting on a double lever 27, 28, and printing occurs normally on the next stroke of the bed unless the pedal 25 is kept depressed.
Patent GB-261117-A (GB)
Title: Improvements in and relating to gyroscopic indicating instruments
IPC: G01C19/44
Filed: 1925-08-20
Abstract: 261,117. Brown, S. G. Aug. 20, 1925. Gyroscopic apparatus. - In a gyroscopic artificial horizon or zenith indicator, the gyro-wheel carries the horizon mirror and is driven by a universal or flexible connection. As shown, a frame 1 is pendulously mounted in gimbal rings 5, 8, and carries a vertical spindle 9 rotated directly, or through gearing 13, 12, by a turbine wheel 14 driven by air supplied through a nozzle 15, pipes 16, 17, and hollow trunnions. The upper end of the spindle 9 is connected by a Hooke's joint 18, 19, having ball bearings, to a spindle 22 carrying a cup-shaped member 24 having a heavy rim 25 and constituting the gyro-wheel, the wheel being mounted on ball bearings 23 and having a oneway driving connection 26 to the spindle 22. The cardan point of the Hooke's joint is preferably at the centre of mass of the gyro-wheel and coincides with the gimbal centre. The horizon mirror 27 is carried by a ball and socket joint 28 on the gyro-wheel so as to be adjustable in position. The gyro-wheel may be electrically driven, and means may be provided for automatically cutting out the drive when the aeroplane or other vehicle carrying the instrument is subjected to accelerating forces.
Patent GB-1190143-A (GB)
Title: Means for Pumping Foaming Liquids, such as Milk, from a Container
Inventor: BAUM ENGELBERT
IPC: F04D9/00
Filed: 1968-05-02
Abstract: 1,190,143. Milking apparatus. ALFALAVAL A.B. 2 May, 1968 [8 May, 1967], No. 20930/68. Heading A1M. [Also in Division F1] A milk collection vessel 1, Fig. 1, of a machine milking plane has a connection 2 to the vacuum pipeline and a connection 3 to the milk pipeline. The vessel 1 is discharged intermittently by means of a centrifugal pump having an impeller 8 and an outlet 10, the pump motor 7 being started and stopped by a float device or by electrodes sensing the liquid level in the vessel. The bottom of the vessel is formed by the pump housing 4 which is releasably clamped to the vessel and can be swung downwardly about a horizontal axis for cleaning. The central inlet opening 9 of the pump is formed in a disc 11, Fig. 2, which, together with a strainer 6, is retained in place by a spring ring 13.
Patent GB-818852-A (GB)
Title: Improved packing for reciprocatory rods
Inventor: STOTT THOMAS CHARLES FELIX
IPC: F16J15/32
Filed: 1957-07-03
Abstract: 818,852. Stuffing-box substitutes. VAUXHALL MOTORS Ltd. March 18, 1958 [July 3, 1957], No. 20956/57. Class 122 (5). Packing for a reciprocatory rod, such as the piston rod 21 of a telescopic hydraulic shock absorber, comprises a ring 20 of resilient material, such as synthetic rubber, having a number of lands 38, 39, 42, 44 engaging the rod and between two of the lands 39, 44, which act to scrape liquid from the rod during its movement in one direction, a pair of adjacent grooves 40, 41 that contain lubricant grease and are separated by a land 42, whose surface is parallel to the rod axis and which is deformable by frictional engagement with the rod to displace grease from one groove to an adjacent groove, so as to lubricate the rod. The lands 39 and 44 are tapered and the groove 37 between the lands 38 and 39 is initially void and is shallower than the grease-containing grooves 40, 41. The inner diameters of the lands, when the ring is unstressed, are slightly less than the diameter of the rod. In a modification, Fig. 4 (not shown), a further shallow groove, similar to groove 37, and a tapered land are provided between groove 41 and land 44.
Patent GB-136622-A (GB)
Title: Means for Holding and Suspending Postcards, Notices, Periodicals and the like for Display.
Inventor: JOHNSON JAMES FRANCIS WILLIAMS
IPC: A47G1/16
Filed: 1918-12-16
Abstract: 136,622. Johnson, J. F. W. Dec. 16, 1918. Suspended racks. - Postcards, notices, periodicals, &c. are held for display by clips threaded on a suspended tape or like flexible strip. The tape d passes through transverse slots in the clips a which have projecting ears between which and the tape the articles g, h are held. The clips may bear advertisements or printed matter for display.
Patent GB-897096-A (GB)
Title: Process for the production of epoxide resins
IPC: C08G59/02
Filed: 1960-06-16
Abstract: Epoxy resins are obtained by hardening epoxy compounds obtained by reacting an organic compound containing one carboxyl group and one phenolic hydroxyl group at elevated temperature with a haloepoxyalkane containing halogen adjacent to the epoxide group (for preparation see Group IV(b)), using any compound suitable as a hardener for epoxide resins, for example with organic bases or with poly-carboxylic acids or their anhydrides.  In an example, an epoxide resin obtained by heating p-hydroxybenzoic acid, epichlorhydrin and a heat-hardened melamine resin, is mixed with a mixture of phthalic anhydride and tetrahydro-phthalic anhydride and hardened at 140 DEG C. for 14 hours; the epoxide resin is also mixed with a polyamide containing free amino groups and hardened at 100 DEG C. or at room temperature; dibutyl phthalate may be added to the resin-hardener mixture before hardening.ALSO:Hardenable compounds containing epoxide groups are made by reacting an organic compound which contains in the molecule one carboxyl group and also one phenolic hydroxyl group at elevated temperature with a haloepoxyalkane containing a halogen atom adjacent to the epoxide group in a quantity of more than 4 mol per mol of the phenolcarboxylic acid, in the presence of a polymeric catalyst insoluble in the reaction mixture, said catalyst containing either (a) a saltlike group, (b) a group which may be converted into a salt-like group under the conditions of the reaction, or (c) an acid amide group, with subsequent separation of the catalyst and distillation of the excess haloepoxyalkane and volatile products of the reaction.  Suitable catalysts include salts of polyacrylic acid, ion exchange resins, such as cation and anion exchange resins, in the form of their salts, amphoteric ion resins, polyamides, polymeric organic bases, aminoplasts such as melamine resins or urea resins; epoxide resins hardened with organic amines; polymers containing divalent sulphur atoms, which with haloepoxyalkanes may be converted into ternary sulphonium compounds; ammonium alginate.  Suitable starting materials include salicylic acid, meta and para hydroxybenzoic acids, hydroxynaphthoic acids and p-hydroxyphenylacetic acid; reaction products of monoalkali metal salts of dihydric phenols with salts of halocarboxylic acids or a dicarboxylic anhydride; products from maleic anhydride, a phenol and an alcohol; esters formed from two or more molecules of a phenolcarboxylic acid. Epichlorohydrin is the preferred haloepoxyalkane.  Reaction temperatures generally lie between 60 DEG C. and 200 DEG C., and when using epichlorohydrin in large excess, the reaction mixture may be boiled under reflux.  The products may be hardened with suitable hardeners, and may be used as adhesives, casting resins or lacquer resins (see Group IV(a)).
Patent GB-223695-A (GB)
Title: Improvements in or relating to pivot and like joints, for use on windscreens, and for other purposes
IPC: B60J1/14
Filed: 1923-08-22
Abstract: 223,695. Pearce & Sons (Brassfounders), Ltd., G. W., and Jones, A. E. E. Aug. 22, 1923. P i v o t i n g - adjustments; double and multiple hinges. -A hinge joint suitable for use in connection with wind screens comprises a pin 8 mounted in a sleeve 5 which is adjustable on a fixed pivot 3, the arrangement being such that, in one angular position of the member 8, it may be rotated substantially as a radial arm about the pivot 3 whilst being locked against axial rotation, and in other angular positions it may be rotated freely about its axis but is locked against rotation about the pivot 3. The sleeve 5 is formed with a vertical bearing 7 for the pin 8 arranged at rightangles to the pin 3 that projects from the attachment plate. The bearing 7 intersects the bore of the pin 3, as shown, and the pin 3 is formed with a groove 4. The spindle 8 is formed with an arc-shaped groove 9 of the same diameter as that of the spindle 3. When the pin 8 is rotated so that the grooves 4, 9 are positioned as shown, the sleeve 5 may be rotated on the pin 3, whereby the pin 3 engages the groove 9 and locks the pin 8 against axial rotation. If the pin 8 is axially rotated from the position shown, the sleeve 5 is locked to the pin 3. The upper part of the member 5 'may be split at 14, 16 and provided with a clamping screw 18 to adjustably secure the pin 8 at a desired angle position. The movement of the sleeve on its pin 3 may be limited by stops.
Patent GB-704329-A (GB)
Title: Improvements in silencers for gaseous currents
IPC: F01N1/24
Filed: 1950-08-29
Abstract: 704,329. Silencers for gaseous currents. LATHOM ENGINEERING CO., Ltd., and TAYLOR, W. Aug. 28, 1951 [Aug. 29, 1950], No. 21278/50. Class 7(2) An apertured tube 1 and a casing 3 define a space for a soundabsorbing lining which comprises a layer 2 of chemically inactive fibrous material having fibres of long length relative to glass wool, e.g. a rope-like layer of glass silk, around the tube, and a filling 5 of glass wool. The tube 1 may have 16 perforations # inch diameter per square inch of tube surface area.
Patent GB-660959-A (GB)
Title: Electrolytic process of preparing selenic acid from selenious acid
IPC: C01B19/00
Filed: 1949-08-16
Abstract: In the description of a process of preparing selenic acid electrolytically from seleneous acid (see Group XXXVI), reference is made to the following alloys: aluminium alloy type AC-2S, comprising 0.2 per cent copper, a maximum of 1 per cent iron and silicon, 0.1 per cent manganese, 0.1 per cent zinc, 0.15 per cent impurities and the remainder aluminium; aluminium alloy AC-57S, comprising 0.1 per cent copper, a maximum of 0.45 per cent iron and silicon, 0.1 per cent manganese, 0.1 per cent zinc, 2.2 to 2.8 per cent magnesium, 0.15 to 0.35 per cent chromium, 0.15 per cent impurities and the remainder aluminium; magnesium alloy FS-1A, comprising 3 per cent aluminium, 0.3 per cent manganese, 1 per cent, zinc, and the remainder magnesium.
Patent GB-218523-A (GB)
Title: An improved variable resistance device for electric circuits
IPC: H01C10/10
Filed: 1923-08-23
Abstract: 218,523. Yoward, H. A. Aug. 23, 1923. Powdered and granular resistances. -In a, variable electric resistance of the kind comprising a resilient container 1 housing powdered or granulated conducting material 3, the ends of the container are closed by discs 4, 5 and a hand-adjusted screw 8 bears on the disc 4 to vary the resistance by compressing the container. The discs may be loose, or cemented to the container. In a modification, a coiled spring tends to extend the container.