baber/WOPTO huggingface dataset:
Patent GB-1445099-A (GB)
Title: Optical code reading systems
IPC: G06K7/10
Filed: 1973-04-04
Abstract: 1445099 Optical reader for labels PLESSEY CO Ltd 18 Dec 1973 [4 April 1973] 01897/74 Divided out of 1445098 Heading G4M An optical reader for labels, e.g. on articles such as luggage has a detector 16, a light source 15, scanning slit 4 and a circular polarizing filter 5 situated between the light source and the detector and the labels 3. The articles are carried on conveyer 1. The marks on the label should contrast with the background and coloured filters may be used in addition to the polarizing filter. Code marks may be printed in a bright coloured ink. The light output of the source may be modulated at a high frequency.
Patent GB-659416-A (GB)
Title: Improvements in or relating to electrical delay networks
Inventor: LIGHT ROBERT WILLIAM
IPC: H03H7/34
Filed: 1949-01-24
Abstract: 659,416. Electrical delay lines. MINISTER OF SUPPLY..Jan. 24, 1949, No. 1932. [Class 40 (viii)] An electrical delay network comprises a dielectric former 1 wound with a helix of conducting material 4 and a number of seriesconnected inductors 3 are wound upon the helix in capacitative but not direct electrical connection therewith. One terminal 12 of helix 4 and terminal 11 of the series of conductors form the input terminals and the remaining two terminals form the output.
Patent GB-214184-A (GB)
Title: Improvements relating to rifles, shot guns and the like
IPC: F41C23/00
Filed: 1924-01-24
Abstract: 214,184. Martin, J. E. Jan. 24, 1924. Stocks.-A skeleton metallic stock is formed with struts or webs 5 connecting the parts 3, 4 which form the upper and lower edges of the stock to prevent deformation by manual pressure on the grip 6. The fore-end terminates in a yoke 7 embracing the barrel 8 but not touching it. The spaces between the elements of the metal framework may be filled with wood or other material.
Patent GB-942136-A (GB)
Title: Improvements in hopping brewers' wort
Inventor: SHORE DAVID TEIGNMOUTH
IPC: C12C7/20
Filed: 1960-01-19
Abstract: Sweet brewers' wort is hopped by continuously preparing hop charges in succession and in presenting the prepared charges successively in various flows of wort to convert sweet wort into hopped wort, or further to enrich wort already hopped by flow through a hop charge or charges.  The incoming sweet wort is first supplied to a hop charge which has already been traversed by wort, the newly hopped in-coming wort being passed on to a charge or charges which are fresh or are only partly vitiated by wort flow through them.  The hop charges may be moved in a closed looped path employing the apparatus for the continuous filtration of brewers' mash described and claimed in Specification 929,835.
Patent GB-664042-A (GB)
Title: Improvements relating to centrifugal separators
IPC: B01D45/12
Filed: 1949-01-25
Abstract: 664,042. Centrifugal-separators. SULZER FRERES SOC. ANON. Jan. 25, 1949 [Jan. 26, 1948], No. 2019/49. Class 23 In a separator for separating liquid particles from a gas comprising a whirl chamber, a tangential inlet, and a gas outlet concentric with the whirl chamber, baffles are arranged near the gas outlet, these baffles extending to, or close to, the wall of the chamber and having their lower edges not below the top of the inlet. In Fig. 1 radial baffles 9 protrude into the gas outlet 8 and are spaced above the inlet 3. In the modification shown in Figs. 2 and 3 radial baffles 16, 17 are located above the gas outlet 13. The outlet for the liquid may include a liquid trap 11 or be tangential to the whirl chamber. In Fig. 6, (not shown), horizontal radial baffles inclined to the vertical are placed immediately below the gas outlet. The baffles may be non-radially disposed and their lower edges may be inclined.
Patent GB-378776-A (GB)
Title: Improvements in or relating to conveyor-systems for sewing workrooms
IPC: C03B5/06
Filed: 1932-01-22
Abstract: 378,776. Sewing-machine benches. PFAFF AKT.-GES., G. M., 140, Wittelsbacherstrasse, Kaiserslautern, Germany. .Jan. 22, 1932, No. 2036. Convention date, July 3, 1931. [Class 112.] A conveyer system for sewing workrooms comprises two endless conveyers a, b which are separated by a partition i and travel in opposite directions between two rows of sewing machines h. The conveyers may be bands, or chains provided with receptacles, and are driven by an electric motor m through a shaft w, bevel gearing g, and drums e, #. When the conveyers are bands, they are secured by sewing to perforated driving belts c, d.
Patent GB-395759-A (GB)
Title: Improvements in or relating to the manufacture of blasting explosives and the like
IPC: C06B21/00
Filed: 1932-01-23
Abstract: 395,759. Mixing explosives; alloys. DU PONT DE NEMOURS & CO., E. I., Wilmington, Delaware, U.S.A. Jan. 23, 1932, No. 2136. Convention date, Jan. 24, 1931. [Classes 82 (i) and 86.] Apparatus for mixing blasting-explosives comprises an annular metal bowl, non-metallic revolving wheels adapted to pass through the ingredients, and means for regulating the temperature of the bowl; adjustable scrapers for the edges of the bowl and a rake are provided, and the bowl is made of a non- sparking alloy consisting of 94À8-96 per cent of copper, 3-4 per cent of silicon, and 1-1À5 per cent of manganese. The bowl C is provided with a jacket R through which water is circulated by means of pipes N, P, a draining outlet M being provided, and the wheels B, preferably made of wood covered with hard rubber, are supported by radial arms from a central shaft A. The inner and outer edges are scraped by radially adjustable scrapers D, E, and during the initial stages of mixing gelignites for dissolving nitroglycerine in a gelatinizing agent such as nitrocotton, vertically adjustable rakes F can be lowered to engage the bottom of the bowl. The scrapers and rakes are preferably made of hard rubber.
Patent GB-1491374-A (GB)
Title: Comminuting and separating granular material
IPC: B02C23/32
Filed: 1975-01-17
Abstract: 1491374 Impact pulverizers BUEHLER AG Gebr 17 Jan 1975 [21 Jan 1974] 2169/75 Heading B2A  An impact pulverizer comprises a rotor wheel 3' Fig. 2 cooperating with a ring of impact members 7'. Material is fed to the mill via a hopper 8, Fig. 1 is drawn into a pipe 13 (a primary circuit) rises up the pipe 14 and is discharged via tapering ducts 5', Fig. 2 5" Fig. 4, of the centrifuging rotor wheel. The particles of material, after impact comminution against the pins 7" are entrained into the vortex with the mill housing 1, and the coarse fraction is separated towards the periphery and the fine fraction towards the centre. The fines are discharged via an outlet 15'. The coarse particles are recirculated via the tangential aperture 12 Fig. 3 and are again comminuted. The housing of the mill includes a gas pervious wall 9', and an external impervious casing 21. This permits use of the apparatus with an inert gas. The system also includes a fan 19 and cyclone 17. The riser pipe 14 of fine fraction discharge tube 15' includes a cylinder flow screen 23 to permit the fine fraction to pass to the outlet.
Patent GB-547486-A (GB)
Title: Improvements in or relating to the extraction of oils having high vitamin contents from fat-soluble vitamin-containing oils
IPC: C11B3/00
Filed: 1941-02-21
Abstract: 547,486. Vitamin concentrates. NATIONAL OIL PRODUCTS CO. Feb. 21, 1941, No. 2357. Convention date, Feb. 29, 1940. [Class 2 (iii)] Oils or extracts of high vitamin potency are obtained from vitamin-containing oils having an unsaponifiable content of at least 2 per cent., and preferably 3 per cent., by mixing the oils with hot methyl or ethyl alcohol and separating the alcoholic layer from the cooled mass. The oil may be recovered from the extract or used in this form. A natural oil may be used having an unsaponifiable content of less than 2 per cent., this being supplemented by addition of sufficient of an unsaponifiable constituent from another oil, such as squalene. Specified oils of greater than 2 per cent. unsaponifiable matter comprise the liver oils of dogfish, swordfish, tuna, shark, spearfish, ling, sole, halibut and mackerel, and also wheat germ oil. The mixture of oil and solvent is preferably cooled to below 0‹C. before separating the alcoholic layer. The alcohol is preferably near its boiling point for carrying out the extraction and is preferably in the proportion of 5 to 10 parts per part of oil. Only part of the alcohol may be removed from the extract ; the residue being re-cooled and the alcoholic layer removed as before. The non-alcoholic layer may be re-extracted. Illustrative quantitative examples are given.
Patent GB-469190-A (GB)
Title: Improved support for bed-clothes
IPC: A61G7/05
Filed: 1936-01-25
Abstract: 469,190. Airing and supporting bedclothes. BONNIN,A. Jan. 25, 1936, No. 2424. [Class 52 (ii)] A support for raising bedclothes for airing or warming purposes comprises two longitudinal members a, b pivotally connected to one or more intermediate members c, d, preferably by means of links e so as to fold when not in use. Stops hold the device in the extended position. A single connecting member may be used.
Patent GB-710263-A (GB)
Title: Improvements in or relating to means for reeling webs of flexible sheet material
IPC: B65H23/195
Filed: 1951-01-31
Abstract: 710,263. Automatically regulating clutch slip. TIMSONS, Ltd., and TIMSON, E. A. Jan. 2, 1952 ' [Jan. 31, 1951], No. 2432/51. Addition to 680.331, [Group XVI]. Class 80 (2) [Also in Group XVI] A web-winding mechanism comprises a pair of coaxially-mounted fraction disc elements constituting a friction clutch, viz. (a) a driven element rigidly secured to a rotary member mounted in bearings in a fixed part of the mechanism and adapted to drive the webwinding member, and (b) an externally driven element mounted on a part of the rotary member for rotation, relatively thereto, a hingedlymounted web-engaging roller or the like, a mechanical link and lever system for converting the hinging movement of the roller or the like into an axial force exerted on the driving element, and a spring means forming, a flexible part of this system. A web 1, Fig. 1, engages a roller 5 pivotally mounted by arms 10 on a shaft 11, one arm 10 being connected to a link 15 operating a bell-crank lever 16 having forked portions 18. Links 19, hinged to the portions 18, carry a block 20 slidable on a rod 21 screwed in an upright 23 and rotatable by a knob 24. A spring 27 is interposed between the block 20 and an abutment 25 secured on the rod, while a further spring 28 bears on the opposite side of the block 20 and a slidable member 29 pivotally connecting the sides of a lever 30. The lever 30, rockable on a pin 31, engages, through a cross pin 33, a thrust rod 34 secured to a cap 45 carrying a clutch driving element 39 driven through a sprocket 48. The element 39 is rotatably mounted by a roller bearing 42 on a hollow shaft 36 supported by ball races 37 in the upright 23. A friction lining 49 is interposed between the element 39 and driven element 40 keyed to the shaft 36, the element 40 carrying a spurwheel 50 driving a web winding shaft (not shown). When the web tension varies, the roller 5 causes rocking of the arms 10, bell-crank lever 16, and lever 30, thus moving, through the rod 34, the elements 39 and 40 towards or away from each other,: thus, decreasing or increasing the clutch slip to vary the winding speed accordingly. In a modification, Fig. 4, a web-engaging roller 60 rocks a pair of arms 65 mounted on a shaft 66 carrying a two-armed lever, one end 71 being attached to a spring 72. whdle the other end (not shown) is attached to a counterbalance spring attached to an adjustable spindle. The spring 72 is connected to a bell-crank lever 73 which actuates clutch plates 80 and 86 having an interposed lining 87. The plate 80, driven by a sprocket is rota'table on a shaft 83, while the plate 86 is keyed to the shaft 83. The shaft 83 has a socket 90 for receiving projecting pins 91 and 93 on the end of a winding shaft 63.
Patent GB-687535-A (GB)
Title: Improvements in and relating to electro-plated electrical heating elements
Inventor: SIMS WILLIAM JOHN
IPC: H05B3/48
Filed: 1951-01-31
Abstract: 687,535. Sheathed electric heating resistances. HOTPOINT ELECTRIC APPLIANCE CO., Ltd. Nov. 6, 1951 [Jan. 31,1951], No. 2446/51. Drawings to Specification. Class 39(iii) In a heating element comprising a helical resistance wire embedded in insulating powder in a tubular copper sheath, the sheath is given a continuous hard coating of nickel by electro-plating or spraying and the element is swaged to compact the nickel coating and close any pin-holes therein. The element is finally coated with tin, chromium or other metal suitable for immersion in a liquid to be heated. The element may be semi-circular or U-shaped, contains magnesium oxide as insulator and may be swaged before coating with nickel.
Patent GB-504146-A (GB)
Title: Improvements in or relating to composite sheet metal structures and methods of fabricating the same
IPC: E04C2/36
Filed: 1938-01-27
Abstract: 504,146. Metal structural elements. STEVENS, A. H. (Budd Manufacturing Co., E. G.) Jan. 27, 1938, No. 2623. [Class 20 (ii]) [Also in Group XXII] A composite metal structure is made of two sheets 13, 14, Fig. 3, separated by spacing strips 15 which are of undulating or wavy character throughout the length, and are secured at spaced points by resistance welding. Spuds or projections 16 may be provided along the edges of the strip for welding. In Fig. 2 is shown an apparatus involving a plurality of electrode elements 18 and 19 of platen or roller type connected by leads 20, 21. This enables a plurality of welds to be effected at the same time.
Patent GB-1064765-A (GB)
Title: Textured filament yarns and a process and apparatus for their manufacture
IPC: D02G1/20
Filed: 1965-01-21
Abstract: A textured filament yarn, in which the filaments are entangled and interlaced, and have when the yarn is in a relaxed state, angular bends therein which point in various directions and are spaced at substantially equal distances one from another, the yarn being substantially free from projecting crunodal loops, is produced in one uninterrupted process by crimping the yarn and by-passing the crimped yarn through a gas jet to entangle the filaments.  In one embodiment the yarn is drawn, stuffer-box crimped, and overfed by less than 5% into a gas vortex chamber. The rate of withdraw of yarn from the stuffer-box is controlled through an electronic circuit by the position of the exit door to keep the amount of yarn in the box constant.  In a second embodiment the yarn is crimped by a pair of rollers, one roller being of oval cross-section and eccentrically mounted and the other roller being spring-pressed against the first roller, so that as the oval roller is rotated at constant angular velocity the yarn is alternately buckled and tensioned at high frequency. The yarn may be of polyamide or polyester and have a round, or tri-lobal or tri-angular cross-section.
Patent GB-607178-A (GB)
Title: Improvements in or relating to the manufacture of mosaic screens
IPC: H01J29/41
Filed: 1946-01-29
Abstract: 607,178. Cathode-ray tubes. CASSMAN, H., FREEMAN, G. S. P., ROWE, T. W., TURK, W. E., and WRIGHT, K. A. B. Jan. 29, 1946, No. 2809. [Class 39 (i)] A double-sided mosaic screen is manufactured by closing the interstices of an insulated metal mesh 1, Fig. 1, with a closure member such as a glass plate 4, filling the interstices 3 in the mesh with a removable substance 5, applying a porous covering 7 to the filled interstices 3 and exposed ridges 6 of the mesh, removing the substance 5 and covering 7 from the interstices 3 whilst leaving the covering 7 on the ridges 6, evaporating or sputtering a metal over the mesh so as to form conducting elements in the interstices, and then removing the closure member 4. The porous covering 7 may be of magnesium oxide smoke, or lampblack, and may be finally removed together with any metal deposited thereon by lapping or washing, although if magnesium oxide is used it need not be removed. The removable substance 5 is finely-divided french chalk or lead borate, removable by vibrating the mesh, or of camphor, naphtha, or benzyl benzoate, removable by sublimation; mixtures of these two types of substances may be used. Alternatively, the removable substance 5 may be a liquid. The glass plate 4 is attached to the mesh 1 by a synthetic resin cement so that it can be finally removed by dissolving the cement; during the latter step the mesh 1 may be provided with a temporary protective film of rubber so as to prevent dislodging of the conducting elements in the interstices.
Patent GB-496849-A (GB)
Title: Improvements in photo-mechanical printing apparatus
IPC: G03F7/18
Filed: 1938-01-29
Abstract: 496,849. Printing-machines. KANITZ, G. Jan. 29, 1938, No. 2901. [Class 100 (ii)] [Also in Group XX] A machine for transferring negatives to printing forms, comprising cylinder 2, presser 11, and feeding plate 3, is provided also with a wiper blade 33, so that, on introducing ink into the trough in which the cylinder 2 rotates, the machine may be used for printing from the cylinder 2. The blade 33 is carried by a support 34 the spindle 46 of which rests in half-bushes 44 of arm 37 pivoted at 39 in a vertically adjustable member 9 carrying the rollers 11, 12. Arm 37 carries a toothed quadrant 40 gearing with worm 41 actuated by handle 42. The wiper assembly carries a weight 47 on an arm 36 provided with a projecting pin 38 coacting with an axial cam 48 which causes a reciprocation of the wiper when rollers 11 and 12 are driven by cylinder 2. Check 43 prevents the arm 36 from dropping when there is no cylinder on the machine. When the machine is used for transferring a negative, the wiper assembly is removed. Specification 449,068, [Group XX], is referred to.
Patent GB-422658-A (GB)
Title: Improvements in or relating to television and like transmitters
IPC: H01J29/02
Filed: 1934-01-29
Abstract: 422,658. Television transmitters. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Campbell, R. L. ; 56, Ridgeway Avenue, Oaklyn, New Jersey, U.S.A.) Jan. 29, 1934, No. 3032. Convention date, Jan. 28, 1933. [Class 40 (iii)] In a television transmitting system undesired or interfering impulses occurring in the periods between the scanning of successive lines or pictures are superimposed on electrical impulses of amplitude and sense so that the combined impulses exceed a predetermined value beyond that of the peak picture signals, and the composite signal is applied to a channel which is arranged to cut off the signal at the predetermined level. The picture or scene is projected on a mosaic screen 12, constituted, for example by separate photo-sensitive silver globules on a metallic base, which is scanned by a cathode beam 16 deflected by coils 18, 22 fed by saw tooth waves from generators 20, 24 controlled by synchronizing impulses 50, 52 produced by a generator 48. The synchronizing impulses reversed in phase, are also applied to the grid 26 of the tube 10 to cut off the beam during its return movement at the end of the lines and of the picture. The picture signals 58 and the interfering waves 60, Fig. 16, occurring between the scanning of successives lines and pictures are fed to a valve 44 in the output circuit of which are applied the synchronizing impulses which in the final stage of the amplifier 54 are arranged to be of negative polarity. At the input to the valve 46 the superimposed synchronizing and interfering impulses are at a level beyond that of the peak picture signals in the negative direction, and the valve 46 is biassed to cut off at a level 68, Fig. 18, somewhat beyond that of the peak picture signals, but below the level 64 of the synchronizing impulses to produce square topped synchronizing impulses of the same polarity as the picture signals with the interfering waves excluded, as shown in Fig. 1<d>.
Patent GB-349566-A (GB)
Title: Improvements in the production of fertilisers
IPC: C05C1/02
Filed: 1930-01-29
Abstract: The caking of fertilizers which are normally substantially dry is prevented by adding 1-5 per cent of finely divided insoluble phosphate, e.g. a phosphate of calcium or iron and/or aluminium. Ammonium nitrate, ammonium sulphate, ammonium phosphate, calcium nitrate, mixtures of ammonium nitrate and chalk, and, in general, all the common fertilizer salts or substances or mixtures containing them may be treated in this way.  The aluminium and iron phosphates may be obtained by neutralizing an acid solution of rock phosphate from which the calcium has been removed.  In an example, phosphate rock is treated with sulphuric acid and ammonium sulphate, the precipitate of calcium sulphate separated, and the remaining solution neutralized with ammonia.  The precipitate of iron and aluminium phosphates is collected and dried and mixed in amounts of 1-5 per cent with the substantially dry fertilizing material comprising a mixture of ammonium phosphate and sulphate produced by working up the neutralized extract.  Specifications 10781/08, 5657/10, 269,235, 305,760, 307,575 and 309,299, [all in Class 111, Sewage &c.], are referred to.ALSO:The caking of fertilizers which are normally substantially dry is prevented by adding 1-5 per cent of finely divided insoluble phosphate e.g. a phosphate of calcium or iron and/or aluminium. Ammonium nitrate, ammonium sulphate, ammonium phosphate, calcium nitrate, mixtures of ammonium nitrate and chalk, and, in general, all the common fertilizer salts or substances or mixtures containing them may be treated in this way.  The aluminium and iron phosphates may be obtained by neutralizing an acid solution of rock phosphate from which the calcium has been removed.  In an example, phosphate rock is treated with sulphuric acid and ammonium sulphate, the precipitate of calcium sulphate separated, and the remaining solution neutralized with ammonia.  The precipitate of iron and aluminium phosphates is collected and dried and mixed in amounts of 1-5 per cent with the substantially dry fertilizing material comprising a mixture of ammonium phosphate and sulphate produced by working up the neutralized extract.  Specifications 10781/08, 5657/10, 269,235, 305,760, 307,575, and 309,299, [all in Class 111, Sewage &c.], are referred to.
Patent GB-739623-A (GB)
Title: Punch and die device
IPC: B21D37/10
Filed: 1954-02-02
Abstract: 739,623. Rolling. WESTERN ELECTRIC CO., Inc. Feb. 2, 1954 [Feb. 2, 1953], No. 3086/54. Class 83 (4). A punch and die device for shaping a hollow article, e.g. a rectangular electromagnetic waveguide, comprises a die having 'a cavity for receiving the article and a punch having a roller rotatably mounted in a recess in a corner portion thereof which co-operates with the die to sharpen a corner of the article. The device is embodied in a press 15 having a bed 16 and a reciprocable ram 17 carrying the die 18. Vertically-extending grooves 22 are formed in the corners of the die cavity 19. The punch 25 is mounted on a holder 27 and its upper corner portions are provided with recesses 28 for receiving rollers 29 which co-operate with the grooves 22 of the die. A pressure pad 32 has a rectangular aperture for the punch and integral projections 33 for receiving and supporting the flared portions 12 of the article (Fig. 6). The pressure-pad is supported by pins 35 which extend through the holder 27, bed 16 and a support 36 and are connected to an air cushion (not shown). In operation the article is placed on the pressure pad which holds the article until it is received in the die cavity. Further displacement of the die depresses the pressure pad so that the article is shaped over the punch and the rollers 29 stretch the rounded corners of the article and form them into right angles. When the die is raised the pressure pad strips the finished article from the punch. Alternatively, a spring-loaded member may be disposed in the die cavity to eject the article from the die.