baber/WOPTO huggingface dataset:
Patent GB-279576-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J21/02
Filed: 1926-08-11
Abstract: 279,576. Edison Swan Electric Co., Ltd., and Price, T., W. Aug. 11, 1926. Vacuum tubes.-To prevent bombardment of the envelope of high-power oscillator valves, which have an electron-emitting filamentary cathode and contain substantially no residual gas, by electrons from parts of the cathode not surrounded by the grid, these parts are substantially completely surrounded at one end by a thimble or cap b of metal gauze or foil and at the lower end by a screen b<1> of similar material and preferably of frusto-conical form, these screens being placed over the frame a of the grid m, and the enclosure is completed at the lewer end by a metal disc e attached to the molybdenum wire n which supports the bight of the filament. An insulating space h is left between the disc e and the grid frame. The filament support n is freely slidable in steatite blocks r secured to the filament leading- in wirss g, a spring o serving to keep the filament taut. The grid is supported by clamping- bands d embracing depending wires l. A glass sleeve i is placed over the filament stem j to strengthen the insulation between the filament and grid leads.
Patent GB-499212-A (GB)
Title: Improvements in electric cables
IPC: H01B9/02
Filed: 1937-07-17
Abstract: 499,212. Cables. FELTEN & GUILLEAUME CARLSWERK AKT.-GES. July 17, 1937, No. 19872. Convention date, Sept. 3, 1936. [Class 36] A concentric conductor cable has its outer conductor formed of two superposed layers of metal bands helically applied about the cable core, the band or each band, of one layer being provided with a central longitudinal projection which prevents lateral displacement of the band or bands of the other layer, which latter band or bands have no projections and cover the gaps between the turns of the band or bands of the first mentioned layer. The Figures show return conductors formed of thin bands 1 having central projections 2 which retain in position thicker smooth bands 3. The bands 3 may be of rectangular or trapezoidal cross-section.
Patent GB-800252-A (GB)
Title: Improvements in or relating to electric surge diverters
Inventor: MURET DOUGLAS ADRIAN
IPC: H01T4/20
Filed: 1955-07-08
Abstract: 800,252. Lightning arresters. GENERAL ELECTRIC CO., Ltd. July 9, 1956 [July 8, 1955], No. 19900/55. Class 38 (4). In a lightning arrester having a plurality of spark gap elements connected in series with a non-linear resistor, some of the gaps are shunted by a capacitive impedance and the remainder by resistors, the impedances being arranged to be equal at power frequencies, but at high frequences, the drop in impedance of the capacitive elements causes the voltage across the resistive elements to increase, thus giving a lower flashover voltage across the arrester. As shown, the several gaps are formed by a stack of circular electrode plates 8, 9, spaced alternately by resistance and dielectric material 10. The non- linear resistor (not shown) in series with the stack may be shunted by a condenser to reduce the breakdown voltage under steep-fronted impulse conditions.
Patent GB-1451276-A (GB)
Title: Lens structure
IPC: G02B13/18
Filed: 1974-05-06
Abstract: 1451276 Infrared lenses RANK  ORGANISATION Ltd 30 April 1975 [6 May 1974] 19922/74 Heading G2J An objective for the I.R. band (e.g. 8-14Ám) comprises the lenses shown wherein the front element is of Germanium; distance S 1  lies between 0À5F and F; the radii of the front and rear surfaces of each meniscus element differs by not more than 0À25F and at least one element of the rear unit is also made of Germanium. Surface R2 may be aspheric. A small flat field corrector may be used with the objective. Numerical data and modulation transfer functions are given for one example.
Patent GB-696893-A (GB)
Title: Improvements in the drafting of textile fibres
Inventor: AMBLER GEOFFREY HILL
IPC: D01H5/74
Filed: 1949-07-29
Abstract: 696,893. Textile drafting apparatus; rollers. AMBLER SUPERDRAFT, Ltd. June 30, 1950 [July 29, 1949: March 25, 1950], Ncs. 19932/49 and 7521/50. Class 120(ii) Apparatus for drafting fibres includes a resilient roller having a surf a c e of cellular material of hardness falling in a range between 50 and 80 on the Shore. Durometer scale and means for pressing the roller against a rigid, fluted roller so as to cause a depression in the resilient roller of such depth that the position of the nip point of the rollers does not appreciably vary. The invention has particular application to the apparatus of Specifications 671,633 and 696,882. The arc of contact of the resilient roller with the rigid roller is so arranged that the angle of incidence " B is greater than the angle of taper " of the roving or the like passing between the rollers. An example has an angle B of 14 degrees. The rigid roller preferably is formed with V- shaped flutes 0.04 inch wide and 0.008 inch deep and having an included angle of 130 degrees. The pressure between the rollers causes the resilient material to sink into the flutes to exert a firm grip on the fibres. The preferred material for the resilient roller is bonded cork, but other natural or synthetic compositions may be used. The roller arrangement is described as applied to a mounting and weighting mechanism as described in Specification 685,528.
Patent GB-1224430-A (GB)
Title: Well head completion apparatus
IPC: E21B33/04
Filed: 1969-04-18
Abstract: 1,224,430. Wells &c. ROCKWELL MFG. CO. 18 April, 1969 [25 July, 1968], No. 19970/ 69. Heading E1F. Annular seals 39, 43 between a tubing hanger 30 and a tubing head 20 isolate a lock screw 52 from pressure above and below the hanger. Pressure may be applied through a port 45 to test the annular seals and a screw packing 53.
Patent GB-148161-A (GB)
Title: Improved process of extracting albumen and fat from bones
IPC: C11B13/00
Filed: 1920-07-09
Abstract: The residual gelatin and other albuminous matter are extracted from bones that have already been treated in an autoclave for extraction of fat, by boiling the crushed bones with water and soda.  The fat is skimmed from the settled liquid, and the solution of albumen is withdrawn from the lime, neutralized with hydrochloric acid mixed with 10 per cent of salt, and treated with a current of carbon dioxide to precipitate the gelatin &c.ALSO:The residual fat and gelatine and other albuminous matter are extracted from bones t have already been treated in an autoclave for extraction of fat, by boiling the crushed bones with water and soda.  The fat is skimmed from the settled liquid, and the solution of albumen is withdrawn from the lime, neutralized with hydrochloric acid, mixed with 10 per cent of salt, and treated with a current of carbon dioxide to precipitate the gelatine and other albuminous matter.
Patent GB-729229-A (GB)
Title: Improvements in poultry leg bands
IPC: A01K35/00
Filed: 1952-08-08
Abstract: 729,229. Poultry leg bands. ELT, Ltd., G. H., and ELT, L. G. July 13, 1953 [Aug. 8, 1952], No. 20073/52. Class 146(2). In a leg band for birds wherein a hollow rivet 3 at one end is passed through a slot 2 at the other end and set over by pliers &c., the rivet has a uniform cross section from.root to rim and a configuration such that when the rivet is engaged by the slot of corresponding shape it is securely interlocked against pivoting at the joint when in use. The rivet has one or two walls 3a extending substantially at right angles to the length of the band. Figs. 1 and 2 show a rivet of rectangular section, and further embodiments with rivets of hexagonal, oval, and triangular section are also illustrated.
Patent GB-140313-A (GB)
Title: Improvements in and relating to pencil sharpeners
IPC: B43L23/08
Filed: 1919-08-16
Abstract: 140,313. Perry, E. S. Aug. 16, 1919. Pencil-sharpeners. - Two blades or cutters are employed, one blade d<2> to remove the wood and another blade e<2> for cutting the lead. The conical casing a is provided with a radially projecting lug e, which is formed with a tapered recess e<1> and with a flat surface to which the cutter e<2> is fixed. The pencil is subjected successively to the action of the cutters d<2>, e<2>. Alternately, the cutters may be arranged in line for progressive action.
Patent GB-683394-A (GB)
Title: Improvements in or relating to glass envelopes
IPC: H01H29/04
Filed: 1949-08-04
Abstract: 683,394. Shaping glass. WEST & CO., Ltd., A., BREEZE, V. L., and COOPER, J. A. Aug. 3, 1950 [Aug. 4, 1949], No. 20306/49. Class 56. The internal cavity of the sealing - off " pip " of a blown glass envelope liable to be subjected to internal pressure, e.g. by the inertia effect of mercury contained therein, has a more or less rounded or hemispherical end as distinct from the flattened end of the usual chisel shape. Thus a blown glass bulb, which is to form the envelope of a mercury switch filled with hydrogen at less than atmospheric pressure, having had the electrodes sealed into the wall, the mercury inserted, and the hydrogen admitted to the required pressure through a portion of the original tube still attached to the bulb, has this portion of the tube heated at the appropriate point while still connected to the hydrogen source so that it is locally melted, closed, and parted off, leaving a small hollow pip at the end of the now sealed envelope. This pipe is chisel-shaped as at Figs. 1 and 2 and liable to fracture. The pip is therefore softened by heating and the envelope warmed to expand the hydrogen which applies internal pressure on the pip to expand it to the shape shown in Fig. 3.
Patent GB-148489-A (GB)
Title: Improvements in railway appliances
IPC: B61L7/02
Filed: 1920-07-10
Abstract: 148,489. Railways et Signalisation Soc. Anon., (Assignees of Cesar, V.). March 14, 1914, [Convention date]. Void [Published under Sect. 91 of the Act]. Hand levers and hand gearing.-In order to increase the throw of the controlled apparatus from a lever of fixed stroke, a mechanism is added to the hand lever. Two forms are shown on Figs. 1 and 3. The lever 1 carries a toothed quadrant 6 engaging a pinion 7 on a pulley 8 over which the operating-wire 10, 11 passes. Alternatively the ends 10<x>, 11<x> of the wire may be fixed and passed over pulleys 13, 14 on the tails of the lever. In order to facilitate operation of the lever, a second rod 15, engaging a fixed nut 16 and carrying a collar 17 engaging a slide 19 fixed to the lever 1, may be rotated by a crank 18.
Patent GB-317001-A (GB)
Title: Process of treating ores, metallurgical products or the like
IPC: F27B21/06
Filed: 1929-07-03
Abstract: 317,001. Metallges. Akt.-Ges. Aug. 8, 1928, [Convention date]. Open-pan roasting and sintering apparatus.-In roasting or sintering ores and other metallurgical products in apparatus in which air is blown or drawn through an ignited charge on a grate or the like, the ignition stage is divided so that the material is subjected first to a comparatively weak ignition and afterwards to one or more stronger ignitions. In the rotary apparatus shown, the material is charged from a hopper 1 and is ignited by means of furnaces 2, 3, 4 having ignition areas of successively increasing widths, the product being finally discharged at 5. The positions of the ignition furnaces may be adjustable. In a modification applicable to rotary apparatus, one fixed ignition furnace may be used in conjunction with a movable ignition furnace of adjustable width; and in a further modification applicable to straight apparatus, two ignition furnaces are used and the charge is reciprocated beneath them.
Patent GB-153248-A (GB)
Title: Improvements in apparatus for agitating the fuel in gas generators
IPC: C10J3/34
Filed: 1920-07-10
Abstract: 153,248. Bentley, G. H., and Appleby, E. G. July 10, 1920. Addition to 140,891. Charges, agitating.-Two similar water-cooled pokers e for a gas-generator are suspended from weighted levers k, pivoted at e to brackets p on the generator top b. Each poker slides in a bearing h on a sliding socket j, so that when the generator top is rotated by the worm d, the poker becomes inclined and rises through the fuel. Arms n pivoted to the poker and connected to the brackets p carry a bar o, which limits the descent of the poker by engaging the bearing h, and governs its inclination when it rises through the fuel.
Patent GB-834183-A (GB)
Title: Improvements in ink control device for fountain roll
IPC: B41F31/04
Filed: 1958-06-26
Abstract: 834,183. Inking apparatus. WOOD NEWSPAPER MACHINERY CORPORATION. June 26, 1958 [May 15, 1958], No. 20522/58. Class 100(2) An ink-control device for a fountain roller comprises a laterally flexible blade extending parallel to the longitudinal axis of the roller, a series of pivoted levers extending parallel to and bearing on the blade, a rotatable screw in an end of each of the levers, a toothed wheel on the end of each screw, a pawl-like projection engaging the wheel, and means for moving the projection to advance the wheel one tooth to cause the lever to rotate about its pivot point and thus to flex the blade. The blade 3 is adjusted for each column by a series of mechanisms, each comprising a pin 8 on a lever 6, pivoted at 7 and carrying at its other end a screw 9 having at one end a toothed wheel 11. The toothed wheel is rotated one tooth to bring the blade nearer the fountain roller 1 by a pawl 12 attached to a pneumatic piston in a cylinder 15. A. similar pawl on the other side of the wheel axis and attached to a second piston rotates the screw in the other direction. The cylinders are supplied through conduits 17 selectively by push-button valves, and the amount of movement of the blade portion at one actuation is 3/1000 inches or less.
Patent GB-329886-A (GB)
Title: Pocket watch with covered dial
IPC: G04B37/00
Filed: 1929-07-05
Abstract: 329,886. Soc. Anon. Mido. Feb. 20, 1929, [Convention date]. Cases, watch. - A case 1 carrying the movement is hinged at 7 into an outer casing 5 having a pivoted cover 6 which moves parallel to the plane of the dial. A pivot pin 8 on the cover pivots in a sleeve 10 in the casing 5, being held by a groove and a spring clamp 12. A spiral spring is fixed at one end to the pivot 8 and at the other end to a part rigid with sleeve 10 so that it automatically moves the cover in one direction since it has been stressed by the movement in the other direction. In the present instance this spring returns the cover to closing position, a snap spring 16 engaging a notch 17.
Patent GB-256400-A (GB)
Title: Improvements in or relating to electric battery cells
IPC: H01M6/04
Filed: 1925-08-19
Abstract: 256,400. Bamber, C. Kelway-. Aug. 19, 1925. Cells. - A cell of the LeclanchÚ type is provided with a glass container 1 having a glass cover 10 provided with two openings through which the zinc and carbon electrodes project, the carbon electrode Having means ior suspending it from the cover. A glass support is provided for the zinc electrode. In the form shown, in Fig. 1 the electrode 3 is suspended from the cover by means of a rubber ring 11, the support 7 for the zinc electrode 4 being provided by making the lower part of the jar 1 of a smaller diameter. The electrode 4 passes through a split rubber plug 18 in the cover of the cell. Fig. 2 shows a modification in which the electrode 3 is suspended by a glass disc 14 which rests on rubber rings 15, 16, the zinc electrode being supported by a loose glass ring 8. Fig. 3 shows a further modification in which the electrode 3 is suspended by a nut 6 or the threaded terminal lug 5 of the electrode, an air-tight joint being made by means of a rubber ring 16. The zinc is supported by lugs 9 formed integrally with the cell. The cover 10 in all the forms makes a tight joint with the cell by means of a packing ring 17. Specification 109,122 is referred to.
Patent GB-877090-A (GB)
Title: Improvements in auditory publications
IPC: G11B3/70
Filed: 1958-06-30
Abstract: 877,090. Gramophone records. SHAW, C. K. July 24, 1959 [June 30, 1958; Jan. 22, 19591, Nos. 20849/58 and 2403/59. Class 40 (2). [Also in Group XV] An. arrangement of sound recordings are combined in a single assembly by being disposed around the edges of a central integral base over which they may be selectively folded in such a way that any record face may be brought uppermost.
Patent GB-347063-A (GB)
Title: Improvements in means for attaching cowls or covers of valve gear for internal combustion engines
IPC: F02F7/00
Filed: 1930-07-10
Abstract: 347,063. Casings. WOLSELEY MOTORS (1927) Ltd. and TOWLER, C. O., Drews Lane, Ward End, Birmingham. July 10, 1930, No. 20872. [Class 7 (ii).] The covers 1 of overhead valve gear are mounted detachably by spring clips held on to the valve rocker pivots 10 by the end nuts. There is a cover for each valve, and for aircraft engines the covers are of streamline form. Each clip consists of a bowed upper part 5 with depending spring fingers 7 ; the cover is of substantially the same shape as the bowed part, but when pushed into position deforms this part so that pressure is exerted on locking means consisting of pegs 13 on the clip or cover entering holes in the cover or clip.
Patent GB-1306906-A (GB)
Title: Recuperator
IPC: F23M20/00
Filed: 1971-04-19
Abstract: 1306906 Heat recuperators MIDLANDROSS CORP 19 April 1971 [16 April 1970] 20907/71 Heading F4S In a heat recuperator in which a hot gas (from an inlet 35) flows through an upright metal or alloy sleeve 17, and the gas to be heated flows around the sleeve in a plenum chamber 29, 25, 31 formed about the sleeve by an outer shell 11, the heating and heated gas paths are sealed from each other at the lower end of the sleeve by a well 43 containing a liquid e.g. water, in which the lower end of the sleeve is immersed so permitting free longitudinal expansion and contraction of the sleeve which as shown is secured at its upper end to the casing 11 forming a closure therewith for the plenum chamber. The gas to be heated enters the plenum chamber at 27 and leaves at 33. A refractory member 34 protects the lower end of the sleeve from radiant heating from the incoming gas so preventing evaporation of the liquid in the well. The liquid level in the well is maintained by a reservoir 45 incorporating a wier 49. Alternatively (Fig. 3) the wier may be replaced by an overflow pipe (61) in the well on the low pressure (i.e. heating-gas) side of the sleeve 17.
Patent GB-1214224-A (GB)
Title: Improvements in or relating to the protection of internal combustion engine high tension leads
Inventor: RICE JAMES THOMAS
IPC: H01T13/04
Filed: 1968-05-02
Abstract: 1,214,224. Protecting high tension leads against ingress of moisture. J. T. RICE. Aug. 1, 1969 [May 2, 1968], No.20923/68, Heading F1B. [Also in Division H2] The high tension leads of an internal-combustion engine are protected against the ingress of moisture by sheathing each lead in a tube of plastics material 7 the ends of which are forced over the adjacent parts, e.g. 9, of the components, e.g. 8, to which the lead is attached. The lead between the ignition coil and the distributer may also be protected by a similar sheath.
Patent GB-183859-A (GB)
Title: Improvements in optical projection systems for use in engraving processes
IPC: G03F7/20
Filed: 1922-07-31
Abstract: 183,859. Wadsworth Watch Case Co., (Assignees of Beebe, M. C.). July 30, 1921, [Convention date]. Photo-mechanical printing-surfaces. - In a method of engraving curved metallic or other surfaces which consists in coating the surface with light-sensitive material, optically projecting an image thereon, and treating the image to etch the pattern on the surface, a compensating lens is used in the optical projection system to produce curvature of the image corresponding to the curvature of the sensitized receiving surface. The arrangement shown comprises an electric arc 5, condenser 6, and objective 4, for projecting an image of a transparent design 1 upon a curved surface 2 such as a watch case carrying a layer of light-sensitive material. A lens 7 is placed in front of the surface to produce the desired curvature of the image. The Specification as open to inspection under Sect. 91 (3) (a) comprises also (1) chemical or electric treatment of the developed image to remove the material of the exposed surface or to deposit metal thereon, and (2) the application of the method of engraving to vitreous, ceramic, and pyroxylin surfaces. This subject-matter does not appear in the Specification as accepted.
Patent GB-242385-A (GB)
Title: Improvements in powder distributors
IPC: A45D33/02
Filed: 1924-09-05
Abstract: 242,385. Stanley, E. J., and Crown Perfumery Co., Ltd. Sept. 5, 1924. Powder blowers.-A powder blower comprising a sealed container which, on being pressed, acts as a bellows to discharge the powder, is provided with a fixed internal partition which divides the container into a discharge compartment and a reserve powder compartment and carries one or more non-return valves which allow powder to pass from the reserve compartment to the discharge compartment. As shown, the discharge compartment consists of a hollow perforated plug 3 rigidly mounted in an aperture 2 in the container 1, the non-return valve 9 being mounted on the wall 6 forming the inner end of the plug and allowing powder to pass from the container or reserve compartment 1 to the compartment 3; the plug may carry an inwardly-projecting tube 5 surrounding the discharge perforation 4 or a marked perforable spot. A few small holes 10 may be provided in the cylindrical wall of the plug to allow air to pass from the reserve to the discharge compartment on pressing the container. The container is preferably made of sheet metal.
Patent GB-407594-A (GB)
Title: Improvements in apparatus for and art of manufacturing shoes
IPC: A43D111/00
Filed: 1933-07-25
Abstract: 407,594. Boots and shoes. LAMSON CO., Lamson Street, Syracuse, New York, U.S.A.-(Assignees of Perry, H. R. ; 201, Glen Avenue, Swarthmore, Pennsylvania, U.S.A.) July 25, 1933, No. 20951. Convention date, Feb. 24. [Class 17 (i).] Plant, arrangements of.-In the manufacture of shoes wherein a number of operations are performed in sequence upon the work at successive groups of work stations, the groups are arranged in series and a number of conveyers are provided each spanning two successive groups and accessible to all the operators of the two groups. Successive conveyers overlap so that the delivery end of each conveyer and the receiving end of the next are accessible to each operator. Conveyers of the type in which the work-holders are maintained horizontal are used, so that work-pieces not removed by the receiving operators remain on the conveyer for removal at a subsequent cycle. In the lasting of shoes, assembling machines 21, pulling over machines 22 and side lasting machines 23 are arranged in series, the first two groups being adjacent a conveyer 30 spanning all the stations of the two groups and the second and third groups by a conveyer 31, a conveyer 32 spanning the third and a subsequent group. A suitable conveyer comprises loose trays 73 apertured to receive work pieces bottom upward, supported by diagonally arranged pins 71 engaging sockets in endless chains 36 passing over driven sprockets 37, 38 off-set to maintain the trays horizontal during the whole of their travel. In a modification, the conveyers are arranged between, instead of alongside, the groups, the machines of successive groups being arranged in parallel rows. The conveyer receiving work-pieces from the final lasting machines may pass through a drying apparatus. Other suitable conveyers are briefly described including work receiving trays suspended from one or two endless chains with or without guide rails for the trays. Driven rollers arranged in an endless path, or a chain passing round horizontal sprockets and supporting horizontal trays by vertical pivots may be used.