baber/WOPTO huggingface dataset:
Patent GB-499054-A (GB)
Title: Improvements in and relating to photographic reproduction of multi-coloured screen images
IPC: G03C7/04
Filed: 1937-09-07
Abstract: 499,054. Colour photography. MEYER, C. Sept. 7, 1937, No. 24388. Convention date, Oct. 17, 1936. [Classes 98 (i) and 98 (ii)] Apparatus for producing separate colourrecord components exhibiting little or no grain from a multicolour-screen original taken with a separable screen, comprises means for projecting an enlarged image of the colour photograph, with registered viewing screen, on to a translucent plate, and means for copying this image through component monochrome filters in succession on to separate sensitive plates, the apparatus being totally enclosed, and including an exposure meter, a colour meter, and a prismatic device for viewing the image on the translucent plate. The apparatus may comprise a projector 2 with a lens 6 which projects an enlarged image of the diapositive 4 with registered screen on to a ground-glass plate 7 ; and a lens 15 which forms an image in the camera 10 of the image on the ground-glass plate 7. Monochrome filters are inserted in the holder 9 for making the several colour-records. The camera 10 contains an exposure meter 12, a colour meter 13 and a prism or periscope 14 for viewing the image on the plate 7. Provision may be made for displacing the plate 7 in its own plane between the successive exposures to shift its grain in the copies. The whole apparatus is enclosed by interconnecting bellows 8, 11. In the Specification as open to inspection under Sect. 91, reference is made to various methods of eliminating grain in copying, as by vibrating the camera, focusing the negative unsharply, moving the light source, and causing the air to vibrate by blowing in hot air. This subject-matter does not appear in the Specification as accepted.
Patent GB-327734-A (GB)
Title: A process for the manufacture and production of nitrogenous derivatives of pyranthrone
IPC: C09B3/48
Filed: 1928-10-09
Abstract: 327,734. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Oct. 9, 1928. Divided on 325,250. - Samples furnished. Nitrogenous pyranthrone derivatives are prepared by condensing mono- or poly-aminopyranthrones and substitution products thereof with aromatic compounds containing in the nucleus a negative substituent, such as halogen or a nitro group, or with anthraquinone aldehydes. Preferably negatively substituted organic compounds capable of being vatted are employed and the condensation effected in an organic diluent such as nitrobenzene, naphthalene and in presence of acid-fixing agents and for condensing catalysts. In examples, monaminopyranthrone (Specification 23361/12) is condensed with 1-chloranthraquinone (dyes olive-brown shades), and monobromdibenzanthrone obtained by brominating dibenzanthrone in chlorsulphonic acid in presence of iodine (dyes blue-black) ; diaminopyranthrone prepared by the reduction of the dinitro compound obtained by the action of an excess of strong nitric acid on pyranthrone in nitrobenzene, is condensed with 1-aminoanthraquinone-2-aldehyde (dyes blue-red). Specifications 307,364 and 318,180 are referred to.
Patent GB-1025887-A (GB)
Title: Improvements in or relating to the layout of converter steelworks
IPC: C21C5/28
Filed: 1963-06-19
Abstract: <PICT:1025887/C6-C7/1> A layout for converter steelworks, particularly with oxygen blowing equipment, comprises two or more converters a which move e.g. on trolley b independently along separate parallel straight tracks c to pass in turn from a charging shed d for charging molten pig iron, preferably using barrel-type ladles (see Fig. 2 not shown), and scrap e.g. using overhead travelling cranes, through a refining shed e with one blowing site g for each track, and to a teeming shed f where the steel is teemed into ladles.  As shown, each production unit may consit of two converters, each moving on its own track having its own blowing site, the converters being presented alternately at the blowing sites. During conversion, a hood h for trapping fumes may be fixed above each converter, the two hoods of a production unit being connected to the same dust extractor i.  Shed m is for relining worn converters.
Patent GB-677596-A (GB)
Title: Improvements in and relating to the production of coiled metal strip
IPC: B21C47/02
Filed: 1947-07-02
Abstract: 677,596. Winding and reeling. FIELD, C. July 2, 1947 [Sept. 18, 1946], No. 24424/50. Divided out of 677,511. Class 83 (iv). [Also in Groups VIII and XVII] A method of producing coiled metal strip for subsequent use in the production of metal wool comprises forming the strip into a coil and disposing a detergent between adjacent loops of the coil. The coil may be formed by simultaneously winding one wide strip and two narrow strips in such a manner that adjacent loops of the wide strip are separated by loops of the narrow strips which are wound at the edges of the wide strip. One wide strip Sw and two narrow strips Sn are wound upon a drum 302, the strips being tensioned by rollers 314, the upper one of which 320 in each set is vertically adjustable to regulate the tension. A detergent compound is applied in the space enclosed between the wide and narrow strips from a pipe 334, the overflow of which is collected in a tank 312 and is recirculated back to the nozzle. The tank 312, which is provided with a steam jacket 336, is also continuously replenished with fresh detergent compound. The coil is removed from the drum by unscrewing the caps of the bearings 306, turning the drum into a vertical position and springing it inwardly by means of the right- and left-handed threaded studs 346.
Patent GB-817447-A (GB)
Title: Hydraulic resistor
IPC: G05D7/01
Filed: 1956-08-10
Abstract: 817,447. Regulating flow of fluids. HOLLEY CARBURETOR CO. Aug. 10, 1956 [Aug. 22, 1955], No. 24534/56. Class 135. A hydraulic resistor adapted to provide a flow therethrough intermediate between laminar and turbulent flow which is proportional to the pressure differential across the resistor raised to a power greater than 0.5 but less than 1.0 comprises one or more cylindrical passages 40 in a member 30 in which are positioned pins 41 of slightly smaller diameter. The member 30 is located in a body 10 having an outlet 18 by a cap member 12 having an inlet 22. The number of the passages 40 and the clearances between them and the pins 41 is adjusted to obtain the flow required.
Patent GB-1368346-A (GB)
Title: Infrared lamps
IPC: F24C15/22
Filed: 1972-05-24
Abstract: 1368346 Reflectors E BONDONIO 24 May 1972 24534/72 Heading F4W An infra-red lamp for producing a uniform parallel beam is of the type having a toroidal infra red ray emitting filament 4 arranged in an annular channel member 2 with a reflecting surface 2a having a parabolic cross-section, both members 2, 4 being arranged within a support member 1. A toroidal reflecting member 5 is arranged on the opposite side of the filament 4 to the member 2, to reflect back on to the surface 2a rays coming directly from the filaments. The member 5 may also have a convex, concave or a planar cross-section.
Patent GB-815647-A (GB)
Title: Improvements relating to the crimping of yarns
Inventor: FINLAYSON DONALD
IPC: D02G1/02
Filed: 1955-08-26
Abstract: 815,647. Crimping yarns and fibres. BRITISH CELANESE Ltd. Aug. 24, 1956 [Aug. 26, 1955], No. 24578/55. Class 120(3) Multifilamentary or staple fibre yarns (or bundles of filaments) e.g. yarns of organic derivatives of cellulose such as cellulose acetate, regenerated cellulose such as viscose, polyamides such as polyhexamethylene adipamide, polyamino acids such as polyaminocaproic acid, or a polyester such as polyethylene terephthalate are crimped by running at least one yarn together with a wire between a doubling point for the yarn and wire and a separating point therefor, between which points the yarn and wire are twisted together with a number of turns of doubling twist (which is algebraically non-zero) and setting in the yarn, in a setting zone between the points, the twist imposed on the fibres thereof by local doubling twist in the zone. The wire e.g. a fine metal wire in the form of an endless loop or continuous length, need not become deformed and may be returned to the doubling point or rewound for repeated use. Setting may be effected by dry heat e.g. by passing the yarn through an electrically heated tube or in contact with a heated surface such as a curved plate or channel, or a fluid e.g. steam, hot air, solvent vapours, hot water, and, optionally, with direct heating of the wire. The yarns may be doubled with similar or different, crimped or uncrimped yarns and/or of opposed twists. In the process represented in Fig. 1, yarn 3 and wire 6 drawn from packages 4 and 7 pass through a guide 5 and a tensioner 8, one on each side of a waisted roller 9, through a heated setting tube 12, one on each side of a waisted roller 13, and are wound on bobbins 14 and 15: in threading-up, the yarn and wire 16 between the rollers 9 and 13 are twisted together e.g. 1,000 turns, as by means of a portable electric motor (not shown). In another process, Fig. 2, a yarn 21 drawn from a package 22 passes through a tensioner 23 to a guide 24 where it is joined by a wire 25 formed as an endless loop supported on guides 30 and continuously advanced by nip rollers 29; the yarn or wire together are tensioned by a braked pulley 26, pass one each side of the roller 9, thence, in the intertwisted form 20, through the tube 12, one on each side of the roller 13, and the yarn passes through nip rollers 27 (rotating at the same peripheral speed as roller 29) to a take-up device 28 (which may rotate at a peripheral speed less than that of the rollers 27 and 29) while the wire passes to its return run 33. The wire, within the setting zone, is heated by passage of electric current therethrough between contacts 31 and 32. Specifications 424,880, 458,595, 471,061 and 790,128 are referred to.
Patent GB-1516674-A (GB)
Title: Multi-phase voltage sensing switching device
IPC: H02H3/253
Filed: 1975-06-09
Abstract: 1516674 Automatically-resetting undervoltage detectors; standby systems WESTING- HOUSE ELECTRIC CORP 9 June 1975 [24 June 1974] 24606/75 Headings H2K and H2H A polyphase undervoltage detector comprises a hysteresis-exhibiting threshold circuit responsive to the unsmoothed output of a polyphase half-wave rectifier. Star-connected diodes D1-D3 provide across an input resistance chain R2-R5 of a threshold circuit a voltage equal to the highest instantaneous phase voltage. The minimum instantaneous value of this voltage is normally sufficient to prevent triggering of transistors Q1-Q3, but if it should fall below a first level transistors Q1 and Q3 conduct, rapidly charging a capacitor C2 and thus disabling further transistors Q4, Q5. This switches off an LED D10 and releases a relay CR1 to actuate an alarm or to change over to a standy power supply. The relay CR1 also removes a short circuit from a resistor R4 in the resistance chain so that the threshold level is raised. The circuit will not reset until the minimum value of the highest instantaneous phase voltage has been above this new threshold level for sufficientlylong to allow the capacitor C2 to discharge. The power supply for the circuit is derived by smoothing (C1, D4) the output of the diodes D1-D3.
Patent GB-988680-A (GB)
Title: Improvements in or relating to a process and apparatus for the separation of sets ofhigh molecular weight substances
IPC: B01D61/14
Filed: 1961-07-07
Abstract: 988,680. Separating by dialysis. BEHRINGWERKE A.G. July 7, 1961 [July 9, 1960], No. 24740/61. Heading B1X. A sol of a high-molecular-weight substance containing by-products separable therefrom by dialysis is concentrated by dialysis, then diluted, and again dialyzed. Liquid from a vessel 1 is circulated by a hose pump 2 through chambers 3, 4 and 5 in series and returns to the vessel. Dialysate meanwhile is extracted from chambers 7 and 8 in parallel by vacuum applied to a collecting vessel 6. Each chamber 3, 4 or 5 is separated from a chamber 7 or 8 by, in order, a dialyzing membrane, e.g. collodion, a filter paper, and a perforate screen. After a first dialysis, the concentrate is diluted by solvent from a vessel 1a, and the resulting diluate is again dialyzed, the process being repeated until the high-molecular-weight substance is obtained in the desired concentration. The overall reduction in volume of the original liquid, resulting from repeated dialysis and dilution, indicates the proportional increase in concentration of the desired substance, and the numerical product of the successive dilutions indicates the proportional reduction in concentration of unwanted solute. The solvent in vessel 1a may include a solute which it is desired to introduce into the liquid being treated. In examples, sodium chloride is extracted from a sol of beef albumin ; phenol red is extracted from a sol of inactivated poliomyelitis virus. Reference has been directed by the Comptroller to Specification 942,759.
Patent GB-1311762-A (GB)
Title: Devices for cleaning wiping cylinders of intaglio printing apparatus
IPC: B41F9/10
Filed: 1970-05-21
Abstract: 1311762 Printing apparatus DE LA RUE GIORI SA 21 May 1970 [23 May 1969] 24741/70 Heading B6C An intaglio printing cylinder 2 is wiped by a rotating roller 1 and ink accumulations are removed from the roller 1 by an edge-leading scraper 36 and by passage of the periphery of the roller 1 through a receptacle 3 containing a cleaning fluid. The scraper 36 may be of steel sheet, and is tripped into and out of contact with the roller 1 as required. Within the receptacle 3 edge-trailing scrapers 33-35 may bear against the periphery of the roller 1. Preferably the scrapers 33-35 are of rubber. The cleaning fluid in the receptacle 3 may be an aqueous alkaline fluid, and the roller periphery may be scrubbed by a brush 32 and scraped by a further scraper 47 of, for example, polytetrafluoroethylene, then cleaning fluid residues may be removed by a water spray and the surface of the roller 1 be dried by a further scraper or by a felt wiper.
Patent GB-1503343-A (GB)
Title: Strainers
IPC: B01D29/11
Filed: 1975-06-10
Abstract: 1503343 Demountable filter element YAMAKAWA INDUSTRY CO LTD and NIFCO INC 10 June 1975 [11 June 1974] 24742/75 Heading BID A filter element for a fuel tank comprises a cylindrical body 1, consisting of a lower closure disc 4, an upper ring 3 and axial ribs 5 all moulded integrally of plastics with a tube of filter medium 6 embedded therein, a separate cover 2 removably securable to ring 3 and an outlet pipe 8 removably mountable in a hole 9 in the cover. Pipe 8 has an external bead 8' which fits groove 11 in hole 9. As shown the body 1 has catches 7 at the tops of ribs 5 which engage in holes 12 in the cover to hold it on to the body. Alternatively the catches could be integral with cover 2 and engage round ring 3. Filter medium 6 is plastics net or metal mesh.
Patent GB-240871-A (GB)
Title: Improvements in the synthetic manufacture of liquefied ammonia
IPC: C01B3/02
Filed: 1925-10-05
Abstract: The cold produced by the evaporation of the liquid product of the catalytic synthesis of ammonia is used for cooling the gases withdrawn by the compressor employed for producing the pressure necessary for the ammonia synthesis, thereby increasing the output of the compressor.  The cooling devices are preferably disposed upon the supply circuit of each cylinder of the compressor in such a way that the liquid ammonia therein is maintained at a constant level. Specification 17951/09 is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the utilization of the cold for cooling the gaseous components or a mixture of the components for purification purposes.  To this end, an absorbent is chosen whose efficiency increases with a restriction of temperature, e.g. coal oils or activated carbon for the absorption of gaseous hydrocarbons, water under pressure or alkaline carbonates for the absorption of carbon dioxide, or cuprammoniacal and like solutions for the absorption of carbon monoxide.  The liquid ammonia may further be employed for the final purification of the compressed gases by bringing them into intimate contact with the liquid ammonia, e.g. by bubbling them through the latter, whereby the contaminating carbon monoxide, water vapour, hydrogen sulphide, &c., are removed. This subject-matter does not appear in the Specification as accepted.
Patent GB-656292-A (GB)
Title: Improvements relating to apparatus for generating television signals, or recording television pictures, by scanning cinematograph films
Inventor: CONDLIFFE GEORGE EDWARD
IPC: H04N3/38
Filed: 1947-09-10
Abstract: 656,292. Television. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Sept. 10, 1947, No. 24810. [Class 40 (iii)] Apparatus for effecting interlaced scanning of a continuously-moving kinematographic film for the purpose of generating or recording television signals includes selectively operable means for conditioning the apparatus for a television scanning rate which differs from the rate of advance of the film. In one arrangement, Fig. 1 (for generating television signals), two images of a luminous interlaced raster, having double the normal aspect ratio and produced on the screen 3 of a cathode-ray tube 1, are directed through the film 8 by means of the optical system comprising lens system 14 and mirrors 17, 18 disposed around the periphery of a drum 16 which is driven in the direction of arrow 26 by means of motor 11 which also produces continuous motion of the film. A shutter 19 comprised of radial vanes and apertures, each of width equal to the height (from left to right) of the raster images in the gate 13 and driven by motor 11 in the direction of arrow 23, is synchronized with the television scanning rate so that the images projected on to the film are alternately obturated. Fig. 3 shows the scanning sequence when the mirror drum 26 is driven at the correct speed, i.e. at a speed equal to the difference between the rate of film movement and the television scanning rate, the arrangement being such that the third film frame, 33, is scanned twice as the projected raster images 29, 30 move from position p to position q due to the drum movement, the cycle repeating after five television frame scans. Correction for the variation in luminous intensity of the projected images which varies, as the mirror drum rotates, from a minimum to a maximum and to a minimum again, is provided by a compensating filter 20, the transparency of which is arranged to vary inversely. In the application of the invention to the recording of television signals (Fig. 6, not shown), the television picture is reproduced on the screen of the cathode-ray tube and the mirror drum is replaced by two separately-pivoted mirrors or prisms which are caused, by means of cams, to execute a cyclic movement to produce the displacement of the projected images, an additional shutter arrangement obturating the fourth television frame scan (i.e. the projected images q and r, Fig. 3) in each operating cycle. Instead of employing optical means (i.e. the mirror drum of Fig. 1 or the arrangement of pivoted mirrors or prisms referred to above), the required displacement of the projected images may be produced by suitably modifying the frame deflection wave applied to the cathode-ray tube and, instead of employing the compensating filter 20, the scanning beam may be modulated in intensity at frame frequency. Specifications 475,032 and 639,785 are referred to.
Patent GB-149148-A (GB)
Title: Improvements in pulling and like jacks
IPC: B66F1/06
Filed: 1919-10-11
Abstract: 149,148. Templeton, W. B. Oct. 11, 1919. Jacks.-Relates to a pulling and pushing jack adapted for extracting telegraph poles &c., and for pushing to an erect position inclined posts, buildings, &c., the jack being also applicable as a lifting-jack. The frame 12 is pivoted to the base 10 and can be secured thereto by a catch 37. An auxiliary base 42 is provided formed of a short length of I-section girder. The pillar 13 has ratchet teeth adapted to engage with a sustaining-pawl and with an operating-pawl 19 pivoted to the operating-handle 17. The head of the crutch is splayed and notched, the splayed end 30, Fig. 5, having a sharp edge adapted to bite into a post &c. for a pushing operation, and the notch being adapted to receive a lateral link of a chain 35 for an extracting operation. The faces of the crutch-head are shaped to receive the adjacent links of the chain, the front face having a recess 33 adapted to receive the link and take the pull of the chain.
Patent GB-500707-A (GB)
Title: Improvements in and relating to liquid-break electric switches
IPC: H01H33/96
Filed: 1938-08-24
Abstract: 500,707. Liquid - blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 24, 1938, No. 24915. Convention date, Aug. 24, 1937. [Class 38 (v)] In a liquid-break switch of the extinguishing-chamber type in which a flow of liquid is produced by differential pistons arranged in the chamber 1 and acting independently of one another, one 11 of the pistons brings about a flow through the movable contact 3 which is made hollow and provided with lateral openings 5, whereas the other piston 8 conducts liquid through the fixed contact 2. The openings 5 are uncovered, to an extent depending on the pressure, by means of a spring-valve 7. In a modification, Fig. 2 (not shown), the valve is arranged to co-operate with the openings 17, 18 below the fixed contact, instead of with openings 5, and the piston 11 slides on a fixed and apertured guide sleeve surrounding the movable contact. The flows produced by the pistons 8, 11 through contacts 2, 3, are opposite to and in the same direction respectively as the opening movement of contact 3.
Patent GB-249283-A (GB)
Abstract: 249,283. Caird & Rayner, and Tomlinson, W. Feb. 10, 1925, Feedwater, heating.-In apparatus for removing gases, e.g. air, from liquids, of the kind in which the heated liquid falls upon a series of perforated baffle plates or dishes e arranged in a closed vessel a in which reduced pressure is maintained by means of an air pump or the like connected to the vessel by a tube b, the vessel is provided with a mixing nozzle c in valved communication with the supply of liquid to be treated and with a supply of steam through pipes, h, i. The nozzle discharges the mixture of steam and liquid above the plates e, the liberated gases being drawn off through the pipe b, The treated liquid collecting in the bottom of the vessel is maintained at a temperature sufficient to prevent re-absorption of the gases by means of tubes l, which are heated either by the steam passing to the nozzle or by steam from another source. The admission, of liquid to the nozzle may be con. trolled by a valve operated by a float n arranged in the treated liquid in the bottom of the vessel a. A series of vessels, which may be operated' at the same or at different pressures, may be connected together, the liquid treated in one vessel being passed into the succeeding vessel for further treatment.
Patent GB-628205-A (GB)
Title: Cycle stands
IPC: B62H3/00
Filed: 1947-09-11
Abstract: 628,205. Cycle stands. CHOAT, M. C. Sept. 11, 1947, No. 24928. [Class 136 (i)] A stand for a cycle consists of a standard A mounted in an offset base B, the upper end of the standard being shaped to form a pivot C which can be inserted and trapped between the seat stay lug D and the seat stays E and F at the junction G.