baber/WOPTO huggingface dataset:
Patent GB-231210-A (GB)
Title: Improvements in steam generators
IPC: F22B21/22
Filed: 1923-10-24
Abstract: 231,210. Kelly, L. I. Oct. 24, 1923. Water-tube boilers. - A boiler comprises one or more horizontally arranged helical water tubes, means for so admitting water as to fill the lower parts of the coils, and means for allowing steam to escape from the upper part of each coil. Each coil of a helical tube d opens into upper and lower cross-tubes c<2>, c. A number of helical tubes wound alternately in opposite directions are so placed side by side that they intermesh. Steam passes off from the upper cross tubes c<2> through connections e<3> into horizontal sinuous superheating tubes e. Water is supplied to the lower cross-tubes c from a header b.
Patent GB-1396159-A (GB)
Title: Transparency projection apparatus having lap dissolve means
IPC: G03B23/18
Filed: 1972-06-07
Abstract: 1396159 Transparency projectors EASTMAN KODAK CO 7 June 1972 [7 June 1971] 26613/72 Heading G2J Mirrors 28, 30 are movable between a position in which mirror 30 reflects light from a light source 10 to first projection system and a position in which mirror 28 reflects light from the source 10 to a second projection system; the movement of the mirrors effecting gradual transition from one system to the other for lap dissolve. Mirrors 28, 30 are mounted on blocks 32, 34 movable by drive discs 54, 56 having pins 50, 52 located in cam slots 46, 48. Preferably mirrors 28, 30 reflect light to transparencies (16, 18), Fig.1 (not shown), via mirrors 38 and 40.
Patent GB-785569-A (GB)
Title: Improvements in rotary feeders for positive pressure pneumatic conveyor systems
Inventor: BALL JOHN STEPHEN
IPC: B65G53/46
Filed: 1955-09-19
Abstract: 785,569. Pneumatic conveyers. SIMON, Ltd., H. July 23, 1956 [Sept. 19, 1955], No. 26702/55. Class 78 (1). In a rotary feeder of the bladed wheel type for sugar, Portland cement and like materials, each end wall d of the rotor casing is formed with a cavity k which surrounds an end i of the rotor shaft a and is closed on the side away from the rotor by a resilient washer m and on the other side has an aperture j communicating with the rotor. The washer m has a part which surrounds and extends axially along the shaft into the cavity. Any material which passes into the cavity accumulates therein and presses on the washer to force it into sealing contact with the shaft. The washer is retained by a gland plate n, a metal ring o, a resilient compressed washer p and a metal ring q.
Patent GB-1040356-A (GB)
Title: Transistor circuit
Inventor: GARDNER PETER ALAN EDWARD
IPC: H03F3/343
Filed: 1965-06-24
Abstract: 1,040,356. Transistor circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 24, 1965, No. 26711/65. Heading H3T. A level shifting circuit comprises a transistor arranged substantially as shown with the input 1 connected to the collector and output 2 taken from the emitter. The circuit is preferably employed to couple the collector of a preceding transistor at 1 to the base at 2 of a succeeding transistor. Resistor 6 may be shunted by a capacitor.
Patent GB-654204-A (GB)
Title: Improvements in or relating to optical projection apparatus
IPC: G03B23/12
Filed: 1948-10-14
Abstract: 654,204. Optical projection apparatus photographic enlargers. KODAK, Ltd. Oct. 14, 1948, No. 26753. Convention date, Oct. 17, 1947. [Classes 97 (i) and 98 (i)] The apparatus includes a pair of rotatable supports for film spools, the film being supported in a fixed plane, as it passes from one spool to the other, by a rotatably mounted element having a plane surface perpendicular to its axes of rotation for engagement by one face of the film so that the element is rotated by the film movement. A second rotatable member may engage the other face of the film. In the apparatus shown the plate 20 forms the top of a closed casing 11 and supports an objective 21. Images on the film F are projected by light from a lamphouse 13, containing lamp and condenser, through the objective 21, the light beam being reflected from a mirror in the casing to form an image on a screen in the front wall of the casing. Rollers 41, carried on the plate 20, engage an internal circular groove 29 formed in a frame member 27 thereby rotatable about the optical axis. The frame 27 supports a housing 35 in which are journalled film spool spindles 33, 34 and film guide rollers 38, 40. Fig. 4 shows n detail the means for holding the film in the focal plane of the objective. The film passes between two circular transparent discs 75, 76 to one side of their mounting arrangement. The latter comprises a flange 86, between the plates, on a bush 87, the length of which is slightly less than the combined thicknesses of flange and plates so that a spring 88 acting on a washer 89 holds the plates in contact with the flange 86 with the plate 76 in contact with the flange 85 on the supporting spindle 78. The latter is carried in bearings 79, 81 in arms 80, 82 projecting from the housing 35. In another arrangement the discs 75, 76 are carried in overlapping relation, on separate spaced spindles, the film passing between the discs where they overlap. In a further arrangement the film is wound in contact with one face of a single rotatable disc. The film advancing mechanism comprises a hand wheel (not shown) on the main casing, driving, through a chain, sprocket 55 on a spindle 54 journalled in a bracket 51 attached to the plate 20. This spindle drives through bevel wheels 56, 58 a pinion 59 meshing with teeth 65 on a ring 62 carried on a ball race in the frame 27 concentric with the optical axis. The ring 62 also carries crown teeth 66 meshing with a pinion (not shown), in the housing 35 driving, through a friction clutch and chain drives, the spindles 33 or 34 depending on the direction of hand wheel rotation corresponding to the direction of film feed required. A light baffle may be provided in the main casing to prevent external light entering through the screen to allow the apparatus to be used as a photographic enlarger.
Patent GB-1011166-A (GB)
Title: Improvements in or relating to the manufacture of tungsten metal
IPC: C22B34/36
Filed: 1962-07-13
Abstract: A method of making tungsten metal comprises reducing ammonium paratungstate in two stages, i.e. (1) reducing it to a tungsten bronze containing at least 0.5% by weight of ammonia by heating at 400-600  DEG C. (preferably 450\sB30  DEG C.) in a reducing atmosphere and (2) adding potassium silicate as a dope with or without aluminium nitrate and further reducing to give tungsten metal.ALSO:Ammonium tungstenbronze [NH4)#cWO3, #c less than 1] is prepared by heating ammonium paratungstate at 400-600 DEG  C. in a hydrogen atmosphere.
Patent GB-907739-A (GB)
Title: Improvements in or relating to a process for prevention of dye diffusion in colloid layers
IPC: G03C7/25
Filed: 1960-08-04
Abstract: 907,739. Mordanted colloid layers especially for colour image production. GEVAERT PHOTO-PRODUCTEN N.V. Aug. 4, 1960 [Aug. 4, 1959], No. 27036/60. Class 98 (2). Polyethylene imine-urea reaction products are incorporated into hydrophilic colloid layers optionally containing silver halide to prevent dyes from diffusing laterally from or out of such. Four preparations by heating the pair of reactants in aqueous solution and subsequently precipitating the products by addition of acetone are described, and then examples are directed to (1) production of a solution comprising gelatin, one of the products, saponine and formaldehyde, and coating this on to a subbed triacetale film to form an imhibition blank; (2) coating a somewhat similar solution on to an emulsion layer for photographic application of a sound track and then imbibition printing of three acid dye images thereon; (3) formation of a filter layer also with gelatin as the colloid; and (4) production of pigment paper in similar manner. Additionally use of the products in anti-halo and anti-stress layers and intermediate layers in multilayer films is described, and a review of prior mordanting procedures is provided. Specifications 654,266, 685,475, 755,478 and 830,189 are referred to.
Patent GB-904202-A (GB)
Title: Improvements in or relating to footwear
IPC: A43B7/14
Filed: 1958-08-22
Abstract: 904,202. Footwear. SACHS, M. Aug. 22, 1958 [Aug. 23, 1957; Aug. 15, 1958], No. 27096/58. Class 17 (2). A shoe comprises a sole structure including an overlying portion 16a, an underlying portion 16 extending in the heel area, and a connection between the portions in the heel area, the overlying portion being slidable lengthwise of the shoe relatively to the underlying portion while attached thereto, and resilient means 17 yieldably opposing rearward sliding. As shown in Fig. 1, the overlying portion includes a forepart 18 secured to the front part of the sole, a section 17 of elastic material, and a stud 20 engaging in a key-hole socket 22. The string- like rear portion of the upper, which may comprise an endless band arranged in two loops interconnected by slidable couples, extends between channels 23, 24 in the portions 16a, 16 and may have a loop caught by stud 20. Alternatively the overlying portion may comprise an upper layer and a lower layer with a releasable flap between which the string-like upper extends. Member 16a may be entirely of elastic material. In the construction shown in Fig. 7 the overlying portion comprises a shortened front portion 52, an elastic portion 51, a rear portion with an integral upper part 49, and two attaching studs 53, 54. Fig. 8 shows a shoe with no upper at the rear, and with the overlying portion attached to the underlying portion by a stud 72 at the heel, and three studs 65, 66, 67 at the forepart. The upper 75 at the heel may comprise a separate unit with elastic material forming the complete bottom portion 76, as in Fig. 17, or a partial bottom portion 101, as in Fig. 16. The stud connecting the overlying and underlying portions then passes through a grommet 77 or to the rear of portion 101, with the portions 76 or 101 forming a second overlying portion. A further stud may be arranged at the shank of the sole, and the whole of the underlying portion, or the portions thereof surrounding the key-hole openings, may be of elastic material. The structure at the shank may comprise an upper portion 103 attached to overlying portions 104 joined to a portion 105 which is elastic at least transversely, and may be detachably connected by means of studs 107. Specifications 733,616, 904,203, and 904,204, are referred to.
Patent GB-616609-A (GB)
Title: Improvements in vacuum or gas pump, comprising two or more screws engaging one with the other
IPC: F04C18/16
Filed: 1946-09-10
Abstract: 616,609. Meshing-screw pump. CRAAF, G. A. VAN DER. Sept. 10, 1946, No. 2711 Convention date, May 21, 1942. [Class 110 (ii)] A vacuum, or other type, gas pump comprises two or more meshing screws on parallel shafts 16, in which the pitch and/or depths of the threads diminishes from the suction to the delivery. Gas enters through an inlet 6 and is delivered through ports in end caps 17. Intermediate pressures at pipes 9, 12, are adjusted to give the designed pressure ratios over the sections 3, 4, 5 of the screws. Each pair of pipes 10, 101 or 13, 13<1> leads to a chamber 11 or 14 provided with two non-return valves, which may open alternately to either release gas to atmosphere, or admit atmospheric air to maintain the pressure in the chamber at a desired figure. The ratios of the thread pitch reductions of the sections 3, 4, 5 are stated to be 2 : 1¢ : 1. Gas is delivered into end chambers by way of ports 18<1>. Sealing fluid is admitted through openings 30, 30<1> and is deposited in a curved receptacle 29 formed between the bearings of the two shafts. Specification 419,338 is referred to.
Patent GB-436325-A (GB)
Title: Improvements in hinges for casement windows, fanlights and the like
IPC: E05D5/06
Filed: 1934-09-21
Abstract: 436,325. Hinges. PARKES, S. R., Pretoria Works, New Road, Willenhall, Staffordshire. Sept. 21, 1934, No. 27195. [Class 65 (ii)] In a window hinge of the kind in which the hinge axis is situated outside the face of the window so that when the window is opened there is a space between its hinging edge and the frame, through which its outer surface can be cleaned, the hinge member fixed to the frame has a portion overlapping and lying closely against the face of the window, so that even if the hinge pin is removed or the other hinge member is detached from the sash the window cannot be opened without releasing the fastening. In the form shown, the fixed hinge member comprises an attachment plate 1, normally hidden between the edge of the sash and the frame so that the screws are inaccessible, a portion 6 bent round a bead on the sash which overlaps the frame, and a projecting arm 1<a> carrying the hinge pin 5 on which is mounted the member 3 fixed to the face of the window. In a modification the arm 1<a> may be fixed to the face of the frame by means which are not readily disconnected.
Patent GB-718760-A (GB)
Title: Improvements in or relating to spray nozzles
Inventor: WAHLIN FRED W
IPC: B05B1/04
Filed: 1952-10-30
Abstract: 718,760. spray-producers. SPRAYING SYSTEMS CO. Oct. 30, 1952, No. 27289/52. Class 69 (3)  A spray nozzle includes a tip part 13 with a passage 19 terminating in a dome shaped end 20, and an elongated discharge orifice 21 extends approximately from the base of the dome to adjacent the dome centre. The orifice width is greatest intermediate its ends and is formed by a V-shaped cutter. The tip part 13 is secured to a nozzle body, and two nozzle bodies 33 may be secured in an adjustable manner by a bolt 34 to a fitting 35. The fitting is supplied with liquid from a pipe 36, and the spray from the nozzles is arranged to overlap.
Patent GB-384731-A (GB)
Title: Improvements relating to rheostats
IPC: H01C10/26
Filed: 1931-10-02
Abstract: 384,731. Variable resistances. MACKINTOSH, F., 10, Springvale Terrace, Glasgow. Oct. 2, 1931, No. 27418. [Class 37.] The contacting means comprises a flexible conducting travelling belt or belts 4 embracing a resistance helix 2 wound on a rotatable insulating cylinder 1. The belt 4 consists of a helically wound phosphor bronze or other wire and passes over a grooved pulley 5 revolubly and axially movable on a conducting rod 6, so that as the cylinder 1 is revolved by the handle 11 the belt 4 traverses the cylinder from end to end. Terminals 12, 13 are connected respectively to one end of the resistance wire 2 and to the rod 6. One or two convolutions of copper wire may be incorporated in the wire 2 between the terminal 12 and the adjacent end of the resistance wire 2 so that the resistance is completely cut out when the belt 4 is at one end of its travel. Connections may be made by means of slip-rings at each end of the resistance wire 2 so that the resistance may be employed as a potentiometer. Two similar resistances may be mounted coaxially or side by side and geared together so as to form a double potentiometer or a series resistance. A three-phase motor starter may be formed by mounting three resistance units with their axes parallel and forming an equilateral triangle, a single belt wrapping the three cylinders and forming the neutral or star point. Two or more conducting belts in parallel may be employed to increase the carrying capacity.. The resistances may be immersed in oil. Instead of a spring, the belt may consist of a stranded or woven conductor, means being provided for keeping the belt tensioned. According to the Provisional Specification the pulley 5 may be ungrooved and substantially the same length as the rod 6, so that the belt traverses the pulley from end to end.
Patent GB-263754-A (GB)
Title: Improvements in or relating to water tube boilers heated by radiation
IPC: F22B21/34
Filed: 1926-11-02
Abstract: 263,754. Soc. Anon. des Etablissements Delaunay-Belleville. Dec. 23, 1925, [Convention date]. Water-tube boilers.-In a boiler having tubes connected to an upper drum 1 and to one or more lower chambers 2, the generating tubes 5 are arranged close to the walls and crown of the combustion chamber and downcomer tubes 6 are arranged outside the combustion chamber. The generating tubes are placed close together to form a protective lining. The gases from the combustion chamber may pass among the tubes 8 of an ordinary water-tube boiler. The brick front 7 serves to aid ignition and to increase radiation. According to the Specification as open to inspection under Sect. 91 (3) (a), the front wall is lined with water tubes in the same manner as the side walls. This subject-matter does not appear in the Specification as accepted.
Patent GB-303230-A (GB)
Title: Improvements in connection with valves
IPC: F16K35/06
Filed: 1927-10-18
Abstract: 303,230. Stevens, A. C. Oct. 18, 1927. Locks, revolving-barrel. - A petrol cock A is held locked in both the open and closed positions by means of a cylindrical type of lock E which is provided with two sets of spring-controlled locking-pegs d<3> disposed at right-angles to one another, one for each locked position. Each position is unlocked by the insertion of the key by means of which also the plug B is turned. The lock barrel E is enclosed in a cover F provided with a spring-controlled hinged cap f<1> to exclude dirt.
Patent GB-467313-A (GB)
Title: Improvements in or relating to diazo type photographic printing paper
IPC: G03C5/31
Filed: 1936-10-12
Abstract: 467,313. Photographic diazotype layers. KALLE & CO. AKT.-GES. Oct. 12,1936, No. 27699. Convention date, Oct. 12, 1935. [Class 98 (ii)] In processes of preparing diazotype layers by applying the diazo compound with or without an azo coupling component to a base and rnbbing the base with a powder of a developing composition which may also contain an azo coupling component, the material is freed from dust by subjecting it to a flowing gas which does not injure the diazo material in a short time, e.g. air. The material may afterwards be calendered. In an example, paper is sensitized with the zinc chloride double salt of diazo-2<1>: 6<1>- dichlorbenzyl-4-amino-1-aniline and citric acid and rubbed with a powder of phloroglucine and calcium acetate. Dry air under pressure is then blown into it. The Specification as open to inspection under Sect. 91 comprises also the use as a developer of feebly acid salts of weak acids fugitive in steam such as zinc acetate and zinc formate. In examples, (1) paper coated with a solution of diazo-1-amino-4-benzoylamino diethoxybenzene and citric acid is rubbed with a powder of phloroglucinol and zinc acetate or zinc formate ; (2) paper sensitized with the zinc chloride double salt of diazo-21: 6<1>-dichlorbenzyl-4- amino-1-aniline and citric acid is rubbed with a powder of phloroglucine and lead acetate. This subject-matter does not appear in the Specification as accepted.
Patent GB-404767-A (GB)
Title: Improvements in or relating to slide rails for dynamo electric machines
IPC: H02K5/26
Filed: 1932-10-06
Abstract: 404,767. Machinery beds. LAURENCE, SCOTT, & ELECTROMOTORS, Ltd., Gothic Works, Norwich, and GILLESPIE, J. J., The Bungalow, The Square, Fairfield, Manchester. Oct. 6, 1932, No. 27746. [Class 80 (iv).] A slide rail for machines such as dynamos comprises a longitudinally slotted plate 10 having holding-down pads 15 welded to it at 20, 21 and a welded nut 13 for the reception of a tension screw 14. The pads may be L-shaped, and two parallel spaced rails may be used in place of a single slotted rail.
Patent GB-467883-A (GB)
Title: Improvements in or relating to disc-talking machines
IPC: G11B3/08
Filed: 1936-10-13
Abstract: 467,883. Dictating-machines. KOSMOGRAPH - DIKTIERMASCHINENFABRIK GES., and RYSICK, A. Oct. 13, 1936, No. 27765. [Class 40 (ii)] A sound recording and reproducing apparatus, particularly for dictation purposes, comprising a turntable 3 supporting a blank 5-across which a recording or reproducing stylus is traversed, has means for automatically lifting the stylus from the record after a predetermined traverse. The sound-box 14 or electric pick-up is provided with both a recording stylus and a reproducing stylus and can be inclined to render either operative by a handle 17 controlling a shaft 18, cam 19, and links 20, 21. The sound-box is floatingly supported by a carrier 9 having an extension 10 passing through the lid 7 and guided on rods 11, 12, a feed screw 13 being employed to traverse the member 10 along the guide-rods. A fixed stop 36 is adapted to rock a lever 29 at a given point in the traverse, thereby projecting an extension 25 on a rod 23 under a roller 26 on the sound-box and lifting the recording stylus 16 clear of the record blank. The roller 26 is of conical form, so that, when the sound-box 14 is inclined for reproduction, movement of the extension 25 is inoperative to lift the stylus from the record. A spring 33 maintains the rod 23 normally retracted. Specification 455,553 is referred to.
Patent GB-514026-A (GB)
Title: Improvements in push-button tuning devices for radio receivers
IPC: H03J5/12
Filed: 1938-09-23
Abstract: 514,026. Wireless receiving sets. CROSLEY RADIO CORPORATION. Sept. 23, 1938, Nos. 27835. 27836 and 27837. Convention dates, Feb. 24, 1938, April 7, 1938 and April 7, 1938. [Class 40 (v)] [Also in Group XXXVI] In a push-button tuning device for radio receivers, each button operated plunger is adapted on depression to tune the receiver by contacting with a pivotal member on one side of the pivot thereof and rocking the member into a position in which it also contacts with the plunger on the other side of its pivot. The push buttons 29 comprise plunger portions 23, 25, on which adjustable double-armed elements 31 are secured so that when any push button is depressed one of the ends of the appropriate differentially adjusted element 31 engages and rotates a plate 7 about its longitudinal axis 6 the plate 7 adjusting the tuning shaft 8, e.g. the condenser gang, through a rack arm 9 gearing with a wheel 10 on the condenser shaft. Each button is returned to its outer position shown by a spring 40. The elements 31 are rotatably mounted at 30 on their respective plungers 25 and secured in adjusted position by tightening a set screw 34 which frictionally secures the element 31 between plunger 25 and a locking plate 35, 36, Fig. 3 (not shown). Normal manual tuning is effected by rotating a knob 14 the shaft 11 of which rotates the plate 7 through a belt 13 and pulley 12. The tuning indicator comprises a pointer 21 moved traversely over the dial 22 by an endless cord 17 passing over a driving pulley 16 on the tuning shaft 8 and guide pulleys 18, 19, 20. In a modification each differentially adjustable element 31, Figs, 6, 7 is locked by a plate 46, slidable between the plunger 25 and a bent strip 43 riveted thereto, and forced into engagement with the arcuate portion 39 of element 31 by the set screw 34. In a further modification the plate 7 is rigid with the tuning shaft. In another embodiment, the two abutments associated with each pushbutton 56, Fig. 8, for differentially rotating the plate 7 comprise an extension 56a and an adjustable set screw 61. The plate 7 adjusts the tuning shaft 8 through an arm 48, pin 54, and a belt 50. The push-button tuning mechanism, condenser gang, tuning indicator. manual tuning knob and combined on-off switch and volume control may be housed as a separate unit in a casing detachably secured to the front of a larger casing housing the remainder of the receiver which may be mounted below or in a hole in the instrument panel of an automobile, Figs. 10-12 (not shown).