baber/WOPTO huggingface dataset:
Patent GB-101538-A (GB)
Title: Improvements in Lift, Warehouse & like Doors.
Inventor: FRANK SIMON JULES
IPC: E05D15/38
Filed: 1916-08-29
Abstract: 101,538. Frank, S. J., (Assignee of Clermont, J. B.). Sept. 23, 1915, [Convention date]. Doors; lift doors.-A lift, warehouse, or like door consists of two sections, the lower section 13 sliding in channel guides 11 on the upper section 10. Cross-braces 30 may be secured to the guides 11. Rollers 14 on the section 10 travel in guideways 16, which are curved over at the top to horizontal or slightly inclined guideways 18. The section 13 slides in fixed guideways formed by angle-irons 22 and plates 23; the upper ends of the angle-irons limit the downward movement of the upper section. Cables 26 at each side are connected by links 25 to brackets 24 near the lower edges of the section 13, and are operated by a single hand or power winch. The lower section first slides over the upper section until the brackets 24 engage the lower edge of the upper section, and both sections then move together. When the rollers 14 reach the guideways 18, both door sections are moved inwardly and obliquely from the doorway and are finally supported substantially horizontally, so that the doorway is quite clear. The door is closed by gravity, and may comprise more than two sections; any desired counterbalance may be fitted.
Patent GB-755042-A (GB)
Title: Device for setting-up props especially pit props
IPC: E21D15/58
Filed: 1954-04-29
Abstract: 755,042. Pit props. JONES, W. D. (Schwarz Komm.-Ges., H.). April 29, 1954, No. 12395/54. Class 20(2). A pit prop comprises a collar surrounding the inner prop member and formed of sections 13, 14 engaging one another by wedge surfaces 17, 18 so that when the section 13 is driven upwardly by a wedge 19 the collar grips the member 12 which on further movement of the wedge 19 is raised against the mine roof. The sections 13, 14 are formed with a hook at one end and the other end is flat, the wedge surfaces 17, 18 being formed on the engaging surfaces of these parts. In a modification one section is formed with two hooks embracing flat ends on the other part. The wedge 19 engages between a prop clamp 20 on the lower prop member and an inclined surface on the section 13. The collar is shown modified for a square cross section inner prop.
Patent GB-125194-A (GB)
IPC: C21B5/00
Abstract: 125,194. Frankignoul, A. March 22, 1918. Electrode furnaces.-The redticing portion of a blast furnace is gas fired, and the hearth portion is heated electrically. The gas is supplied from an adjacent producer G, and delivered to the blast furnace F through tuyeres O<1> situated above the electrodes E, by which the current is supplied to the metal in the hearth portion. The waste gases are used to generate steam for driving the electric generator.
Patent GB-682379-A (GB)
Title: Improvements in and relating to ice forming cups or the like for use in refrigerators
Inventor: SQUIRE ALEXANDER CECIL ALDRITT
IPC: F25C1/24
Filed: 1951-05-29
Abstract: 682,379. Ice-making. PLASTRAY PRODUCTS (BIRMINGHAM), Ltd. May 29, 1951, No. 12629/ 51. Class 29 Ice-making cups 20 for domestic refrigerators have one or more recesses or depressed portions 23 in their upper edges to allow excess liquid to drain out whereby ice does not form above the rim flange 22a and prevent ejection of the cube. The cups are moulded of polyethylene and instead of having notches formed as shown may have the rim formed as a shallow concave curve. The cups fit in recesses formed by a longitudinal rib 15 and transverse ribs 16 in a metal tray with side wells 11 rolled at the edges 11a. Drain grooves 18 with holes are provided in the bottom of the tray.
Patent GB-759832-A (GB)
Title: Improvements in or relating to headers for steam superheaters and other tubular heat exchange apparatus
IPC: B21D53/02
Filed: 1951-05-30
Abstract: 759,832. Steam superheaters, &c. SUPERHEATER CO., Ltd., MELHUISH, H. and RUDORFF, D. W. Aug. 29, 1952 [May 30, 1951], No. 12716/51. Class 123(3). [Also in Group XXVIII] A header for a locomotive steam superheater or like heat-exchanger is fabricated from steel plate and the ends 5 of the superheater &c. elements 6 are jointed to the wall 1 of the header by tubular nipples 2. The nipples are secured to the header wall 1 at apertures therein by annular welds 31 or 51, and they are also welded at 53 to an anchorage plate, or plates, 34 spaced exteriorly of and parallel to said wall and having holes through which the nipples extend. The plate 34 is formed to provide slots to accommodate the shanks of the clamping bolts 38 of the elements and seats for the heads 41 thereof. As shown the header comprises flat side plates 7, 8, top plate 12, 13 and longitudinal partition plate 11, welded to one another and to the plates 1, 34 ; also spaced interdigitated superheated and saturated steam pockets each constituted by a horizontal or inclined upper plate 44 extending between the side plate 7 or 2, and the partition 11 and side plate 22, 23 extending the full width of the header between the plate 7, 8.
Patent GB-740569-A (GB)
Title: Improvements in and relating to alternators with d.c. excitation
Inventor: WYNTERP WIERD
IPC: H02P9/38
Filed: 1953-05-07
Abstract: 740,569. Alternators. NAAMLOOZE VENNOOTSCHAP HEEMAF. May 7, 1953 [May 10, 1952], No. 12816/53. Class 35. In a compound excited alternator, the field winding 6 is fed from the output current and voltage through transformers and a rectifier 5, the current transformer secondary winding 7 and its shunting choke 4 being so dimensioned that the reactive voltage drop between the terminals of the winding 7 is always large compared with the resistive drop in the rectifier and field winding, thus providing uniformity of excitation irrespective of thermal resistance variations and generator speed. The excitation circuit may be used for a polyphase machine and, as shown in Fig. 3, the choking coil 4 may be combined with the secondary winding 7 in a single winding 47. In this form a three-phase core 8 provided with air-gaps 9 in each limb is wound with the transformer and choke windings for each phase, 3 being the current transformer primary and 47 the voltage or secondary winding. The no-load excitation may be adjusted by altering gaps 9. It is stated that the magnetic circuit of an asynchronous motor may be used as transformer. If desired, the coil 47 may be split and wound on different cores in zig-zag fashion to obtain power-factor compensation. A form is also described in which voltage compounding is achieved in a singlephase machine by means of a coil on a threelimbed transformer as in Fig. 3 fed from an auxiliary winding on the generator.
Patent GB-755458-A (GB)
Title: Photographic colour correction
IPC: G03C7/18
Filed: 1954-05-03
Abstract: 755,458. Photographic colour correction. AGFA AKT.-GES. FUR PHOTOFABRIKATION. May 3,1954 [May 2, 1953], No. 12851/54. Drawings to Specification. Class 98 (2). Corrected multicolour images or separation records, described as of special importance in the reproduction of original images as of fabrics, carpets, wallpapers, handbags or shoes for advertising purposes, are made by printing the original coloured image through a mask or corrective prepared therefrom which represents an optical combination of a colour separation record with another colour separation record of opposite but otherwise similar gradation, both records being formed of dyes of the same colour and which colour has the same absorption as the unwanted absorption of the partial dye images to be corrected. The most important mask, described as a " yellow corrective " and by which better reproduction of the yellow and blue colours is obtained, is made by contact printing an original multicolour negative with blue light on to a silver halide emulsion layer, processing the latter to black and white, placing it in printing relation to the original multicolour negative, exposing therethrough with green light and processing the result which constitutes the mask or corrective to a yellow dye image. Directions for obtaining the desired gradation of the intermediate black and white image, as by use of a grey step wedge, are provided in the Specification. The mask of next importance, a " magenta corrective " for increasing the saturation of the colours green and magenta is made similarly using green light for the first printing, red light for the second, and processing of the mask to magenta. The corrected images or records may be made using both of these " correctives," one on each side of the original multicolour negative. The " yellow corrective " may be adapted to mask unwanted blue absorption of both the magenta and blue-green dyes of the original negative by use of green-red light for exposure thereof, or to mask unwanted blue and green absorption of the blue-green image dye by processing it to a yellow-orange colour. The above printing and processing steps may be united into a single step by effecting the first exposure on to a two-layer material, one layer of which is sensitive to the part of the spectrum in which the unwanted absorption of the image dye lies and can be processed directly to positive, and the other sensitive to the part of the spectrum containing the desired absorption and which can be processed to a negative; thus such a " yellow corrective " for the magenta dye is made by exposure of the original multicolour negative with blue and green light into a blue-sensitive positively-developing layer with underlying yellow filter and negatively developing orthochromatic layer, which layers are colour developed to yellow to provide a mask for printing the original negative with white light to give a corrected multicolour positive.
Patent GB-168945-A (GB)
Title: Improvements in and relating to the construction of roofs, huts, portable buildings and like structures
IPC: E04C3/38
Filed: 1920-05-10
Abstract: 168,945. Surridge, L. T. May 10, 1920. Roofs.-In roofs, huts, and portable buildings of the kind consisting of longitudinal slats supported on arched ribs and pressed together by springs, the ribs are formed of laminations of wood or metal, Fig. 12, placed parallel to the plane of the rib and formed in segments, Fig. 3, which may be connected together and disconnected. The ribs may have a channel or hole 22 for a cable or rope extending completely over the arch, and the ribs are spaced apart by rods engaging sockets 21. An inner shell or lining 20 is supported by a flange 18. Truss rods 24 may be connected to the ribs by yokes 25, Fig. 11, and a top light may be provided. Specifications 141,086 and 143,585 are referred to.
Patent GB-253096-A (GB)
Title: Improvements in phonograph adjunct for radio sets
IPC: H04B1/20
Filed: 1926-05-21
Abstract: 253,096. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Weinberger, J.). June 2, 1925, [Convention date]. Magnetic instruments.-A thermionic oscillation generator 4 is modulated by the action of the phonograph needle 30 which is mounted on a steel rod 28 supported by the spring 29. In oscillating between the poles N, S, of the permanent magnet 27, the rod varies the flux linked with the coil 2 and so varies the inductance in the plate circuit of the valve 4.
Patent GB-506052-A (GB)
Title: Improvements in or relating to electron discharge devices and to envelopes and contact bases therefor
IPC: H01J19/66
Filed: 1937-11-16
Abstract: 506,052. Caps for discharge tubes. STANDARD TELEPHONES & CABLES, Ltd., and GOODCHILD, F. D. Nov. 16, 1937, No. 13224/39. Divided out of 506,033. [Class 38 (i)] [Also in Group XL] In a valve wherein the leading-in wires pass through a dished glass end A and form or support the contact pins 1, the exhaust pipe 4a has secured thereon a guide pin of metal or insulation to form the centring means for the base which acts as a contact - making base. The end A and other members are as described in Specification 506,033.
Patent GB-132471-A (GB)
IPC: F16H55/10
Abstract: 132,471. Julien, J. May 13, 1919. Toothed gearing.-In bevel-gear of the kind in which a series of balls or the like carried by one or both members engage recesses in the co-operating member, means are provided for taking the lateral thrust. In the arrangement shown, the bevel-wheel 1 is provided with rows of balls 3 kept in place by a plate 4 and adapted to engage cavities formed in a cap 12 on a pinion 7. Balls 10 carried by the pinions 7 are arranged to engage cavities in the plate 4 and a groove 16 formed in a bevel flange 15 to take lateral pressure. A ring 17 loosely mounted on balls 18 about the pinion 7 also engages the flange 15. In a modification, all the balls are carried by one member, and the loose ring engaging the thrust flange is arranged at the forward end of the pinion.
Patent GB-259862-A (GB)
Title: Lasts for making slippers, low shoes, or oxfords
IPC: A43D3/02
Filed: 1926-05-25
Abstract: 259,862. McNiff, M. F. May 25, 1926. Lasts. - A last for making slippers or low shoes has the rear surface of the heel cut in a reverse curve, the lower portion 12 as seen in side elevation, convex, and the upper portion 11 concave and curving rearwardly to the top of the last. The sides of the heel are similarly curved, the upper side portions being substantially parallel, normal to the top surface 10 and narrower than usual. This construction causes the shoe or slipper made on the last to hug the heel tightly. Preferably, the upper rear edge of the last is in a vertical line with the convex portion.
Patent GB-243619-A (GB)
Title: Improvements in jars for use in well drilling operations
IPC: E21B4/08
Filed: 1925-05-21
Abstract: 243,619. Arbon, P. May 21, 1925. Bore-hole apparatus.-A jar for use in well-drilling, comprising a male member 8 with a T-head 14 engaging slots 5 in the walls of a female member 2, has flutes 15 in the shank of the male member and registering rows of apertures 17 in the walls of the female member, whereby passage of sludge is permitted. A stop collar 9 on the male member has flutes 16 between the flutes 15.
Patent GB-328791-A (GB)
Title: Improvements in and relating to sound recording apparatus
IPC: G10K11/26
Filed: 1929-04-30
Abstract: 328,791. Bowker, W. R. April 30, 1929. Sound - focusing device combined with recording- apparatus. -Consists of an adjustable sound - waves focusing device in association with sound-recording means. A is a gas reservoir with an adjustable stopcock B connecting by flexible tubing C with a valve D on the lens-like sound waves focuser E. The lens E, of convex shape, consists of a hollow vessel of elastic material filled with a gas, such as carbon dioxide, which refracts the sound waves from the direction W to the direction WF to converge at the focus O. H is an interference or collecting tube, forming no part of the present invention, with arms 1, 2, 3 and 1, 4, 3, the inlet opening J being located at the focus O and the outlet opening K at the inlet F of the sound recorder G, which is supported on a structure L. The lens E is assembled on pivots R to allow angular displacement from the normal perpendicular position, and is supported on a, structure S carried on the base structure Q. The gear wheel M, rotated by the handle N, and operating in the toothed rack P, provides a means to vary the relative positions of the lens E and the sound recorder G, so as to adjust the focus O for maximum efficiency. The interference tube H is detachably secured to the support structure L by a bracket X. The lens E can have its radius of curvature altered, as shown by the dotted outline V, V, by varying the pressure of the gas therein.
Patent GB-442496-A (GB)
Title: Improvements in or relating to heating devices employing liquid fuel
IPC: F23D3/02
Filed: 1934-05-03
Abstract: 442,496. Liquid - fuel burners. MAHLER, R., 9, Dreihufeisengasse, Vienna. May 3, 1934, Nos. 13427 and 13428. Void [Abridged as open to inspection under Sect. 91 of the Acts, Jan. 8, 1935]. [Class 75 (i)] In a liquid-fuel burner comprising concentric annular fuel chambers 1 the fuel chambers are formed with downwardly extending ribs 1<1>, as in Fig. 1, or are formed very deep, as in Fig. 3, so as to heat the air ascending the passage 2 between them to the flame and to prevent overheating of the fuel. The cover 7 surrounding the fuel chambers and enclosing air passages 6, 8 may be attached to the fuel chambers or be adjustable vertically by means of an eccentric disc 23 operated by a handle 25. A cap 11 formed with an annular opening 12 bridged by arcshaped strips 13 fits over the cover 7 and carries depending pins 14 conveying heat from the flame to the liquid fuel.Annular wicks 15 are provided in the fuel chambers adjacent the inclined walls of the air passage 2, to facilitate ignition and combustion. The wicks are supported by wire clamps 17. The fuel chambers are fed from an elevated fuel tank through a vessel containing a float operating a valve against the resistance of a spring. This vessel may be adjustably mounted on a vertical spindle or be fitted in or on the burner. A number of burners may be fed from a single float vessel.
Patent GB-732004-A (GB)
Title: Polarization interferometer
IPC: G01B9/02
Filed: 1953-05-13
Abstract: 732,004. Optical apparatus. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. May 13, 1953 [May 14, 1952], No. 13448/53. Class 97 (1). A polarization interferometer for observing an object in white or monochromatic light comprises a polarizer, a birefringent prism, the inlet face of which is parallel to the plane wave issuing for the polarizer and whichsplits the beams into two relatively inclined beams, an observation system the focus of which is at the outlet of the prism, means for maintaining the object in the light beam and means for measuring the resulting interference effects. As shown in Fig. 3, light from a suitable source is plane polarized by a polarizer P<SP>1</SP> with axis at 45 degrees to the plane of the drawing and passes to the birefringent prism ql which divides it into two diverging oppositely polarized beams, a glass prism q2 being provided to maintain the general direction of the two beams. The beams pass to a condenser C, the object X to be examined and an objective O in the rear focal plane of which is a second birefringent prism Q<SP>2</SP> arranged with the axis perpendicular to that of the prism ql. Any phase differences introduced into the two beams by the object give rise to interference effects localized at the image plane X<SP>1</SP> and are viewed through an eye-piece and a polarizer P<SP>2</SP>, a Babinet compensator K being provided to facilitate measurement of the interference effects. For wider angles of field the prisms q<SP>1</SP>, q<SP>2</SP>, Q<SP>1</SP>, Q<SP>2</SP> may be replaced by Wollaston prisms. In a modification the object is illuminated by collimated unpolarized light and the objective is followed by a plane polarizer and a double prism formed by connecting the prisms q<SP>1</SP> and Q<SP>1</SP> together, giving unlocalized interference fringes observable in a suitable viewing system. For examination by reflected light the system shown in Fig. 5 may be employed. This comprises a polarizer P<SP>1</SP> from which light passes via a condenser and a reflector G to a Wollaston prism ql, q<SP>2</SP> an image of which is formed on itself by the objective O by light reflected by the surface X under examination. The resulting interference effects are viewed through a polarizer p<SP>2</SP>, a Babinet compensator K being provided' to facilitate measurement. For the examination of an irregular reflecting surface X, Fig. 8, a plane surface V having a reflecting portion M is placed upon W and the resulting interference effects observed.
Patent GB-861652-A (GB)
Title: Improvements in and relating to co-axial cable connectors
Inventor: CLEWES ANTONY BRASHER
IPC: H01R9/05
Filed: 1958-04-28
Abstract: 861,652. Two - part couplings. CARR FASTENER CO. Ltd. Feb. 11, 1959 [April 28, 1958],No. 13457/58. Class 38 (1). In a coaxial cable connector consisting of a tubular metal body 1 containing a plug or socket unit 2 to which the central conductor 10 of the cable is connected, connection to the outer conductor 12 of the cable is effected by a contact consisting of an annular base 8 and a number of upstanding resilient arms 9 which are inserted either beneath the outer conductor or between it and the outer cable sheath 13. A sleeve 4 with a tapered bore 7 and which screws on to the rear end of body forces the sheath 13 and conductor 12 into tight engagement with the contact arms 9 and also presses the base 8 against the end of body 1. In the embodiment shown, a tapered collet 14 is interposed between the sleeve 4 and cable sheath 13, but where a larger diameter cable is used the collet is omitted. Reference has been directed by the Comptroller to Specification 811,589.
Patent GB-134714-A (GB)
IPC: D01B3/10
Abstract: 134,714. Taylor, W. Feb. 5, 1919. Passing materials through fluid-supplying apparatus.-The pronged or forked device for immersing and carrying forward fibrous substances in washing, scouring, and like machines are constructed wholly of incorrodible material to withstand the actions of acids and alkalies and so that they may be fixed and secured in position. The prongs 2, Fig. 1, are formed of earthenware, porcelain, or like vitreous substance, and with perfectly smooth and regular surfaces formed by glazing or covering with a glassy substance. The prongs have cylindrical ends a with flanges b fitting into openings in a bar 3, the ends being covered by a bar 4 held by bolts 5 passing through open-ended slots, the heads being protected by parts 6. The cylindrical end-parts a may be omitted. The prongs may be recessed at c and slotted at c<1>, Fig. 5, to receive the heads of removable bolts 5; or the prong may have a shoulder f, Fig. 7, and a cylindrical part g, which receives a holding-pin 8 passing through the bar 3; or the pars g may be screw-threaded and the shoulder f squared to take a wrench or spanner.
Patent GB-353111-A (GB)
Title: Improvements in and relating to control systems for radio reception
IPC: H04L1/04
Filed: 1930-05-02
Abstract: 353,111. Wireless signalling. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Dome, R. B. ; 13, 9th Street, Schenectady, New York, U.S.A.) May 2, 1930, No. 13592. Convention date, May 18, 1929. [Class 40 (v).] For the prevention of fading in a double channel receiving system, for copying telegraphy, the signal receiver comprises a voltage-responsive source of light, which is supplied with a voltage just sufficient to maintain it in operation and the rectified outputs of the two receiving channels are applied to the device in opposition to each other. As shown a neon tube 12 is kept just glowing by a battery 14 through a resistance 13, and the marking and spacing signals received by receivers 5, 6 on different wavelengths, are applied, in opposition, to the resistance. The effect of obliteration of either of the sets of signals is shown by graphs (Figs. 2, 3 and 4, not shown) only to affect the amplitude of the signals.
Patent GB-595648-A (GB)
Title: Improvements in or relating to the production of protective coatings on ferrous metal surfaces
IPC: C25D5/50
Filed: 1945-05-31
Abstract: Ferrous metals, particularly mild-steel exhaust manifolds for internal-combustion engines are furnished with a protective coating of nickel oxide by first electrolytically depositing a coating of nickel of the order 0.003 inch thick and then subjecting to a firing operation for from 15 to 30 minutes at a temperature of 900-750 DEG C. in an oxidizing atmosphere, the firing time depending on the temperature.