baber/WOPTO huggingface dataset:
Patent GB-767949-A (GB)
Title: Improvements in or relating to calcination of lime
Inventor: SPRATT DONALD ALEXANDER
IPC: C01F11/06
Filed: 1954-02-17
Abstract: <PICT:0767949/III/1> In the production of lime by calcination in a vertical shaft kiln fired with solid fuel, a cooling gas at a temperature of not more than 500 DEG C. is introduced into the kiln adjacent the walls so that the cooling gas passes up through the kiln close to the walls without becoming uniformly mixed with the kiln gases at least during passage past the main calcination zone, the introduction of the cooling gas being effected below the hottest point of the kiln walls where the temperature of the walls and the adjacent charge is not less than 700 DEG C.  As shown in Fig. 1, a kiln 10 is provided with an exhaust flue 11 above the position at which limestone is introduced, and with firing eyes 16 where solid fuel is introduced whereby the limestone passes downwardly first through a pre-heating zone extending from the top if the kiln to the firing eyes 16, a calcining zone from 16 to 14 and a cooling zone from 14 to a level 15 below which the calcined lime is discharged. An inert or semi inert cooling gas is introduced near the base of the calcining zone through openings 17 in the kiln walls connected with a manifold 19 which may be fed with inert kiln exit or flue gases extracted from the exhaust flue 11 of an adjacent kiln.  By supplying such kiln exit gases at a temperature not more than 500 DEG C. to the base of the calcining zone where the kiln contents are at less than 700 DEG C., the kiln gasses cool the walls of the kiln at their hottest part, thereby permitting an increase in primary air, for example by the use of a fan or blower in the kiln exhaust flue in addition to the normal fan supplying primary air under pressure.
Patent GB-633130-A (GB)
Title: Improvements in or relating to taper control indicator
IPC: B24B5/14
Filed: 1946-07-30
Abstract: 633,130. Grinding and polishing. BROWN & SHARPE MFG. CO. July 30, 1946, No. 22660. Convention date, Aug. 7, 1945. [Class 60] [Also in Group XXXVIII] The angular play of a swivel support in a machine tool, e.g. a cylindrical grinding machine for operating on tapered work, is measured by two gauging devices spaced apart along the length of the swivel support, each gauge including an element, e.g. an electric strain sensitive resistor, responsive to movement of the associated portion of the swivel support, and the responses of the two gauges being combined to give a net indication of the angular displacement. As shown, the swivel table 10, which supports in known manner cylindrical work to be ground, swivels at 114 on a reciprocable table 12 and is secured in adjustable angular relationship thereto by a screw and nut 116, 120. The gauging devices each comprise a housing 14, 16 clamped in a transversely adjustable position on table 12. A sleeve 26 is mounted for limited longitudinal movement, e.g. twentythousandths of an inch, in the housing and carries an adjustably clamped plunger 28 the outer end of which contacts a spherical bearing 34 on the swivel table 10. Angular movement of the swivel table 10 thus causes opposite longitudinal movement of the sleeves 26 which through sleeves 52 rock cantilevers 54, 94 carrying strain sensitive resistors 58, 60 and 98, 100 respectively, on their opposite faces. The four strain-resistors are arranged in an A.C. bridge, Fig. 4, so that the strains produced by movement of the opposite ends of the swivel table operate differentially to produce a net out-of-balance voltage, a portion of which is taken off at R3, amplified, and applied over transformer T3,1 and rectifier ring RX to a centre zero meter M where the out-of-balance voltage is compared in magnitude and phase sense with a voltage derived through the transformer T2 from the oscillator supplying the bridge. Sensitivity of the meter is varied by the potentiometer R3 which is adjusted in accordance with the ratio of the lengths of work in question to the full length of the table 10. This ratio is indicated on a dial, Fig. 3 (not shown). Zeroizing of the bridge is effected by a potentiometer R2. For setting up the apparatus knobs 46, Fig. 1, are provided, which, when depressed against biassing springs 50, move the sleeves 26 to their central positions. In addition the cantilever 94 is angularly adjustable about pivot 102 by means of a screw 110 and co-operating spring-biassed stop 112.
Patent GB-249019-A (GB)
Title: Improvements in plug cocks or valves
IPC: F16K5/02
Filed: 1925-09-11
Abstract: 249,019. Eaton, T. Sept. 11, 1925. Closure members, rotary conical.-A. plug cock is provided with two passages cast in the taper surface of the plug 4 and located parallel with each other on opposite sides of a central part, as shown, and in order to obviate any erosive action of the liquid upon the machined closure surface of the plug a single shielding-bar 7 is cast across the inlet passage in the casing. Specifications 4985/86, 10454/93, and 21219/02 are referred to.
Patent GB-756162-A (GB)
Title: Improvements in or relating to non-return fluid valves
Inventor: ALLEN GEOFFREY REX
IPC: F16K15/06
Filed: 1953-08-18
Abstract: 756,162. Non-return valves. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 16, 1954 [Aug. 18, 1953], No. 22789/53. Class 135. A non-return valve comprises a non-resilient obturating member cooperating, in the closed position, with a fixed, resilient seating in such manner that the latter is non-yieldingly enclosed except for that part of its surface upon which the obturating member seats. The obturating member shown comprises a cylinder 16 with an intermediate partition carrying a depending tail 28 by which the valve can be manually opened against the pressure of its loading spring 31. The lower end of the cylinder seats, in the closed position, on a ring 15 of resilient material which is enclosed by the inner surface of the valve casing 11, a flange on the lower end of a liner 19, and a flanged cylindrical guide 26 for the tail 28 of the obturating member. When the valve is opened by fluid pressure applied at the lower end of the casing, the fluid flows through the annular space between the tail 28 and the cylindrical guide 26, through radial passages 29 in the guide, through passages 24 in the outer surface of obturator 16, and so to the outlet at the upper end of the casing. If the passages 29 are omitted, flow through the valve takes place when the obturating member clears the upper end of guide 26.
Patent GB-659687-A (GB)
Title: Improvements in or relating to berths for shipping
IPC: E02B3/26
Filed: 1949-09-02
Abstract: 659,687. Fenders. CHRISTIANI & NIELSEN, Ltd., and NISSEN, J. Sept. 2, and Nov. 28, 1949. Nos. 22855 and 30497. [Class 113 (i)] In a berth for shipping, a fender construction comprises a weighted fender 5 of substantially circular cross-section in planes normal to the longitudinal axis thereof, the fender being freely rotatable about said axis, a support 6 coaxial with the fender and so arranged with respect to the berth 2 as to permit movement of the fender bodily away from the face 4 of the berth, locating means 8 to position the fender relative to the face of the berth so that a portion of the periphery of the fender projects outwards from the face of the berth for engagement by a ship moving towards the berth, and a guide or guides 3 extending from the face of the berth in an upward direction to guide the support 6 during movement of the fender bodily away from the face of the berth, whereby the fender is engageable by a ship moving towards the berth and is moved thereby bodily away from the face of the berth thus absorbing the momentum of the ship. In the embodiment shown in Fig. 1 the support 6 is horizontal while in the embodiment of Fig. 3 it is normally vertical and is mounted for swinging about a horizontal pivot 10. In another embodiment the support is vertical and is mounted at its opposite ends on horizontal axles supporting rollers co-operating with the guides and the locating means comprises chains.
Patent GB-334339-A (GB)
Title: Improvements in taximeters
IPC: G07B13/00
Filed: 1929-07-25
Abstract: 334,339. Waddington Tamperproof Taximeters, Ltd., and Clause, F. H. July 25, 1929. Right to Patent relinqitished. Taximeters ; transmitting details.-An arrangement for preventing loss of drive to the taximeter in changing over from time to distance drive and vice versa comprises a disc, divided into two portions 2, 3 by a flange 4, fixed to the taximeter shaft 1 which loosely carries gear wheels 5, 6 of the time and distance drive respectively which have fixed to them driving members 7, 8 formed with inclined driving surface 9 which together with the driven disc portions 2, 3 form wedge-shaped gaps in which are located rollers 10 urged towards the narrow ends of the gaps by springs 11. A modification is described in which the gear wheels 5 and 6 and their driving members are mounted on separate shafts. The rollers may be replaced by balls or wedges and these members may be knurled or otherwise roughened. The surfaces of the driving and driven members may be smooth or may be roughened with, for example, teeth or serrations, and the members may be reversed so that the driving members are inside and the driven members outside. The Provisional Specification states that the toothed or serrated surfaces on thedriving and driven members may alone form the wedged-shaped gaps.
Patent GB-618891-A (GB)
Title: Improved automatic reversing mechanism for the bobbin rail in flyer or speed frames
IPC: D01H1/36
Filed: 1946-08-01
Abstract: 618,891. Building motions for flyer or speed frames. SIO, J. S. Aug. 1, 1946, No. 22947. [Class 120(ii)] The rack pinions which impart the reciprocating motion to the racks of the bobbin rail of a flyer or speed frame are driven from a shaft 7 which carries two loosely rotatable gear wheels 6, 6<SP>1</SP> adapted to be brought alternatively into driving connection with shaft 7 by means of a double dog clutch which is actuated by reversing mechansim forming part of the building motion, wheels 6, 6' being rotated in opposite directions from a drive shaft 4 rotating continuously in the same direction, the arrangement being such that the direction of rotation of shaft 7 is reversed at the end of each upward and downward movement of the bobbin rail. Wheel 6 is driven from gear 5, and wheel 6<SP>1</SP> from gear 5' through an intermediate pinion 8. A clutch sleeve 9 is moved to engage clutch teeth on wheel 6 or 6' by a fork pivoted at 13 and actuated by a shifting member 11 operated by the building motion of the machine.
Patent GB-706248-A (GB)
Title: Improvements in or relating to supports for low-pressure mercury vapour discharge tubes
IPC: F21V15/04
Filed: 1952-09-12
Abstract: 706,248. Supporting tubular lamps. PHILIPS-ELECTRICAL INDUSTRIES, Ltd. Sept. 12, 1952 [Sept. 15, 1951], No. 22952/52. Classes 75 (3) and 75 (4) A fixture for supporting a low pressure mercury vapour discharge tube 1 comprises two clips rigidly secured to a base 6 and capable of embracing the tube firmly at points spaced from the centre of the tube by a distance of not less than one-eighth and not greater than one-third and preferably one-quarter of the length of the tube. Each clip comprises two parts 2, 3 compressed by nuts and bolts, and rubber rings 5 are interposed between the clips and the tube. The contact holders 9 are supported by resilient braces secured to the clips or by resilient strips 8 cut out of the base 6, the strips being integral with the base near the clips ; alternatively the contact holders are supported only by the tube.
Patent GB-1270296-A (GB)
Title: Adsorption process
IPC: B01D53/047
Filed: 1969-05-06
Abstract: 1,270,296. Separating gases. UNION CARBIDE CORP. 6 May, 1969 [7 May, 1968], No. 23008/69. Heading B1L. [Also in Division G1] In a pressure swing adsorption process for continuously separating feed gas mixture using at least three adsorbent beds by the repeating cycle, steps of sequentially contacting the feed gas mixture with each bed in turn at a first, higher, pressure for selective adsorption of at least one component and discharge of one-component-depleted product gas, desorbing the bed by depressurization to a second, lower, pressure and at least partially repressurizing the desorbed bed by the product gas preparatory to recontacting the bed with the feed gas mixture, the flow rate of the repressurization gas is controlled in linear dependence on the relative adsorption rate so that the repressurization of each bed in turn can be spread uniformly over the adsorption period of the bed then in contact with the feed gas mixture, thereby avoiding rapid pressure fluctuations. Indications of relative adsorption rate may be obtained by measuring the flow rate, temperature, or pressure of the feed gas mixture, or the flow rate of the product gas, or detecting the arrival of the adsorption front at a particular point in the bed. The difference between the repressurization pressure and the feed gas pressure may be measured and the repressurization flow control valve may be automatically adjusted so as to tend to make simultaneous detection of the adsorption front and reduction of the difference between the repressurization pressure and the feed gas pressure to a given limit. The adsorbent material may be a crystalline zeolitic molecular seive, activated carbon, or silica gel. Three bed and four bed processes are described in detail (Figs. 4 to 7, not shown).
Patent GB-441411-A (GB)
Title: Improvements in processes of sensitizing photographic silver-halide layers incorporating colouring matter
IPC: G03C7/28
Filed: 1934-08-10
Abstract: 441,411. Colour photography. GASPAR, B., 5, Avenue Helene, Antwerp, Belgium. Aug. 10, 1934, No. 23160. Convention date, Aug. 10, 1933. Drawings to Specification. [Class 98 (ii)] To silver halide emulsion layers, having incorporated in them dyestuffs which are selectively destroyed at the image or non- image parts to form coloured images, sensitizers are added for the purpose of modifying the gradation of the images. If the sensitization maximum of the sensitizer is near the absorption maximum of the dye used to colour the layer a flat gradation is obtained, and if the maxima are farther apart a steeper gradation. The method may be used to render the gradations of superposed layers or of the particles of an emulsion consisting of differently coloured mixed particles the same. Examples are given of (1) an emulsion coloured with chrysophenine and sensitized with either pinaflavol or erythrosine ; (2) three superposed emulsion layers coloured with Diamine Pure Blue FF, Diamine Fast Pink BBF, and Chrysophenine respectively, the blue layer being sensitized with thioisocyanine ethyliodide, the yellow with erythrosine, and the red with kryptocyanine. The gradation of the red may be made flatter by employing thiazoline tricarbocyanine or another sensitizer for the deep red ; (3) a support having a layer on one side coloured with chloramine light Red 7BL and Chrysophenine and sensitized with pinacyanol, selenocarbocyanine, 6: 61-dimethyl-5: 51 - dibromindocarbocyanine ethyliodide, 6: 6<1>-dimethylindocarbocyanine ethyliodide, or indocarbocyanine ethyliodide according to the gradation of the layer on the opposite side of the support which is coloured with Diamine Pure Blue FF and Chrysophenine and, when pinacyanol is used to sensitize the red layer, is sensitized with thiocarbocyanine ethyliodide. The gradation of the layers may also be chosen in accordance with the gradation of the master image from which the layer is to be printed or with the rate of bleaching of the dyestuffs included in the layers. Specifications 379,679, 395,718, 397,159, 397,170, 397,188, 408,991, and 415,040 are referred to.
Patent GB-800962-A (GB)
Title: New acylamino-amino-anthraquinones and a process for their production
IPC: C09B1/36
Filed: 1955-08-11
Abstract: Acylamino-amino-anthraquinones containing an acyl radical derived from a heterocyclic carboxylic acid having nitrogen in the ring are obtained by partially saponifying a polyacylaminoanthraquinone having at least one acylamino group derived from such an acid and at least one acylamino group derived from an aliphatic or aromatic carboxylic acid by treating with sulphuric acid at 40-100 DEG  C.  The invention also comprises certain new acylamino-amino-anthraquinones, namely 1-(51.61-phthalyl quinoline - 81 - carbonyl) - amino - 5 - amino-anthraquinone, 1 - (quinoline - 81 - carbonyl)-amino - 5 - amino - anthraquinone, 1 - (11.91-isothiazolanthrone - 21 - carbonyl) amino - 5-amino - anthraquinone, 1 - (11.91 - anthrapyrimidine - 21 - carbonyl) - amino - 5 - aminoanthraquinone, 1 - (isonicotinoyl) - amino - 5-aminoanthraquinone, and examples describe the preparation of these by the partial saponification of the corresponding benzoylated products with sulphuric acid.
Patent GB-404579-A (GB)
Title: Screw slotting apparatus
IPC: B23G9/00
Filed: 1933-08-19
Abstract: 404,579. Slotting screws. BECHLER, A., Moutier, Berne, Switzerland. Aug. 19, 1933, No. 23205. Convention date, Sept. 24, 1932. [Class 83 (iii).] Lathes.-A screw-slotting device for an automatic lathe having a fan-like tool arrangement has a conveyer-arm fixed to a shaft, the axis of which passes within the angle made by the two most nearly upright tools, the shaft being carried parallel to the lathe spindle by two standards, on one of which the tools are mounted. The device as applied to a lathe having a slidable headstock a, Fig. 1, and fanlike tool arrangement c<1>-c<4>, Fig. 3, comprises an arm k fixed to a shaft h which is rotated and moved axially by a face-cam and lever mechanism o, o<1>, Fig. 2, and edge-cam, lever and gear segment q<2>, q<1>, q respectively. The end of the arm is adapted to hold a screw and to convey it to the edge of a circular saw l where the screw is slotted by axial movement of rod h; movement of the rod in the opposite direction ejects the screw by contact with the member m.
Patent GB-1272275-A (GB)
Title: Reciprocating motor suitable for use as a drive for reciprocatory stirrers
IPC: F15B11/15
Filed: 1969-05-07
Abstract: 1,272,275. Reciprocating motors. IMPERIAL CHEMICAL INDUSTRIES Ltd. April 30, 1970 [May 7, 1969], No.23375/69. Heading F1M. A reciprocatory motor suitable for use as a drive for reciprocatory stirrers comprises an output shaft or member 17 coupled to piston 14, 15 and cylinder 10 means arranged to effect positive lengthwise reciprocatory movement of the shaft or member in response to the supply of working gas under pressure alternately to oppositely acting portions of the piston and cylinder means, first and second supply conduits D, E respectively providing flow paths to the oppositely acting positions of the piston and cylinder means for gas received from a single source conduit C connectable to a source 25 of working gas an fluidic control means B controlling the flow of gas from the source conduit to the individual supply conduits D, E and capable of stabilizing the flow of a stream of gas from the source conduit to either one of the supply conduits but not to both jointly so that whenever gas streaming through the fluidic control means is constrained to alter its course and switch from exit along a given supply conduit to exit along the other supply conduit the flow along that other conduit becomes stabilized and continues until a new switching constraint is imposed. Means responsive to movements of the output shaft or member are arranged to cause switching constraints to be applied to gas streaming through the fluidic control means when the output shaft or member reaches positions at or proximate to the limits of its reciprocating motion whereby to cause the gas supply to switch from one portion of the piston and cylinder means to the other position and in consequence reverse movement of the output shaft or member.
Patent GB-403602-A (GB)
Title: Improvements in or relating to electric motors or other apparatus mounted inside a submersible bell or the like
IPC: G01F23/72
Filed: 1933-08-22
Abstract: 403,602. Regulating liquid - levels. SULZER FRERES SOC. ANON., Winterthur, Switzerland. Aug. 22, 1933, Nos. 23390 and 23391. Convention dates, Aug. 25, 1932 and April 29, 1933. [Class 123 (i).] An electric motor or other apparatus is mounted in a submersible bell, and the level of liquid therein is regulated by an electric transformer in the bell, whose output is controlled by the level of liquid. A bore-hole pump a, Fig. 1, is driven by a motor b within a driving-bell e to which compressed air is supplied by a pipe n. An electric motor p drives a compressor o delivering to a reservoir m, and thence through a regulating valve s to the bell. A float t carries the primary and secondary windings v<1>, y<1> of two transformers, the other transformer windings v, y being fixed. The coils v<1>, y<1> are electrically connected, and the coil y is connected to a contact voltmeter x controlling a time-switch i which opens the valve s for a predetermined minimum time. In the position shown, the coupling between the coils of the transformers is negligible and the valve s remains closed. As the float rises, the coupling between the transformer coils increases until the voltmeter pointer is actuated, and the valve s opened to admit air to lower the liquid level. In a modification, a single ring iron-cored transformer is used, and the magnetic coupling between the two halves of the ring is varied by iron segments carried by the float.
Patent GB-350319-A (GB)
Title: Improvements in or relating to lighting plants for air-port landing places
IPC: B64F1/20
Filed: 1930-08-06
Abstract: 350,319. Air-port lights. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Ceskomoravskß-Kolben Danek Co., Ltd.; Czecho-Slovakia, Prague.) Aug. 6, 1930, No. 23574. [Class 75 (iv).] Lighting, systems of; devices external to lantern for transmitting light to definite points. - Air-port landing grounds are lighted by means of refracting units receiving light from an external source e.g. a search light common to a number of the units. A form of unit, which may be either a marginal light or a landing light, comprises a refractor 3, a concave mirror 1 adapted to receive a broad beam of light, and an intermediate plane mirror 2 mounted on a horizontal axis in the focus of the mirror 1. As shown the two mirrors and the refractor are mounted in a common casing which is readily movable.
Patent GB-839816-A (GB)
Title: Production of carbon black
IPC: C09C1/48
Filed: 1958-07-23
Abstract: Carbon black is produced by the thermal decomposition of a hydrocarbon, e.g. methane or a crude oil or crude oil residue, by means of an A.C. or D.C. hierarc which is passed between carbon electrodes.  The hydrocarbon is preferably injected into the decomposition chamber as a liquid or gas or vapour at a point where the temperature is above the decomposition temperature of the hydrocarbon, and is more preferably injected around the arc.
Patent GB-599109-A (GB)
Title: Improvements in and relating to racks for supporting articles such as pieces of toast
IPC: A47G19/06
Filed: 1945-09-13
Abstract: 599,109. Toast racks. HIRST, A. Sept. 13, 1945, No. 23659. [Class 128] [Also in Group XXXII] A toast rack comprises an extensible helix of wire &c. 1 to the ends of which separate hooks or clips 2 are pivoted and which are adapted to be removably attached to the rim of a plate &c. X. The hooks 2 which may be attached to the helix above the axis thereof fold into the hollow of the helix when not in use and compressed (see Fig. 3, not shown). The ends of a resilient bail handle may be attached to the helix or the clips.