baber/WOPTO huggingface dataset:
Patent GB-239694-A (GB)
Title: Activated carbon for the sterilization and purification of water and other fluids
IPC: C01B32/336
Filed: 1924-09-03
Abstract: 239,694. Sauer, J. N. A. Sept. 3, 1924. Carbon. - Activated carbon for purifying and sterilizing liquids and gases is prepared from fibrous carbonized material of vegetable origin, preferably of low ash content and without inorganic admixtures, by heating it in an activating gas wherein it is maintained in a state of flotation, suspension, or movement by mechanical means or by a blast of gas, activation being continued until the product is of an apparent specific gravity of 0.15 or less and a true specific gravity of 2 or more. The carbon is made from light porous wood such as pine, willow, or lime if for use with liquids, or from denser material such as oak, birch, cocoa-nut shell or fruit-pips for gasadsorption. These materials are dry distilled at a temperature up to 500‹ C., and then carbonized at a temperature up to 800‹ C., carbon dioxide or monoxide, hydrogen, or retort or generator gas being preferably passed over the material during distillation and carbonization. The material is granulated either before distillation or after carbonization, care being taken not to destroy the fibrous structure. The carbon is then activated by heating to about 800‹ C. in superheated steam, carbon dioxide, air, generator gas, chlorine, or volatilized chlorides, but preferably in steam and chlorine, either separate or mixed. Activation is effected in a retort, preferably heated both externally and internally, and provided with baffles comprising rows of rods arranged in staggered relation to facilitate rapid heating of the carbon. The carbon is introduced near the bottom into an upwardly-moving stream of hot gas and removed at the top, or is dropped as a shower through the gas. Alternatively, the carbon may be passed in a thin layer over heated surfaces. Internal heating of the retort may be obtained by introducing hot combustible gases with air or oxygen, or crude oil, petrol, or other liquid fuel, these gases serving, if desired, as activating gases. The carbon is then purified by treating it with alkali and acid, caustic soda or sodium carbonate, and hydrochloric or acetic acid being specified; or by heating with exclusion of air to a high temperature. Some acid, preferably hydrochloric, or chlorine is left in the carbon to act as a sterilizer if the carbon is to be used in a filter. Specifications 155,610, 166,229, 198,328, 206,862. 213,935, and 234,149, [Class 46, Filtering &c.]. are referred to. Reference has been directed by the Comptroller Specifications 225,891, 228,582, 228,812, and 228,954.
Patent GB-401442-A (GB)
Title: Improvements relating to steering mechanisms for motor vehicles
IPC: B62D3/10
Filed: 1932-07-23
Abstract: 401,442. Gearing for conveying rotary motion. BURMAN & SONS, Ltd., Ryland Road, and BRIGGS, T. H., 55, Oakfield Road, Cannon Hill, both in Birmingham. July 23, 1932, No. 20846. [Class 80 (i).] Rotary motion is conveyed from the shaft c to the shaft g by a screw b on the shaft c, a slidable nut d engaging the screw, racks e on opposite sides of the nut, and toothed segments f engaging the racks and mounted on the shaft g. The pitch lines of the racks are in a plane containing the axis of the screw. The racks are secured to the nut by screws i and dowels j and bear against the inside of a cover plate h, thus preventing rotation of the nut. According to the Provisional Specification a half-nut is used, and the toothed segments fare connected by a sleeve splined to the shaft g, a slight amount of rocking motion being permitted between the sleeve and the shaft.
Patent GB-602010-A (GB)
Title: An improved woven wire or screen netting
IPC: B21F27/00
Filed: 1945-08-14
Abstract: 602,010. Wire network. ALLAN, J. W. Aug. 14, 1945, No. 20858. [Class 45] Woven wire or screen netting comprises warp wires 1, 2 each zig-zagging alternately in opposite directions and crossing either over both or under both adjacent warp wires at angles so as to form diamondshaped openings, and weft wires 5 passing under the lower warp wires 2 and over the upper warp wires 1 and through the loops where they cross, the weft and warp wires locking each other at the intersections. The weft wires may be crimped to aid the locking effect.
Patent GB-1137414-A (GB)
Title: Means for connecting door and like handles
Inventor: HOLDEN ERNEST JOHN
IPC: E05B3/04
Filed: 1966-05-11
Abstract: 1,137,414. Securing door handles on spindles. E. HOLDEN & CO. (BIRMINGHAM) Ltd. 22 May, 1967 [11 May, 1966], No. 20874/66. Heading F2U. A door handle or knob 10 is axially positioned on a square spindle 11, having ratchet teeth 12, by a locking blade spring 13 of channel shape cross-section formed with inwardly and outwardly projecting tongues 13a, 13b, the blade spring 13 being inserted into the handle 10 with the tongue 13b engaging a transverse hole 14 therein and the handle and spring assembly then fitted over the end of the spindle 11 and pushed to engage the tongue 13a with an appropriate ratchet tooth 12 at the required axial positioning of the handle thereon. To release the handle 10, the outwardly projecting tongue 13b may be depressed by a suitable tool inserted in the hole 14.
Patent GB-691956-A (GB)
Title: Improvements in or relating to calliper gauges
IPC: G01B3/44
Filed: 1951-09-04
Abstract: 691,956. Linear dimension gauges. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Sept. 4, 1951 [March 10, 1951], No. 20878/51. Class 106 (ii). A calliper gauge comprises a U-shaped frame 1, which houses two measuring components 2, 3, and a wedge 6, the components and wedge being held in place by a single screw 15 acting on a locating member 10, both of the parts being located between one side of a limb of the frame and one side of one of the measuring components remote from the wedge. A measuring scale is engraved on the wedge and one of the measuring components to facilitate adjustment. An additional locating nember 9 may be provided on the other side of the assembly as shown in Fig. 1. Both the locating members preferably have projections 14 and 11 on their ends. Specifications 673,512, 684,746, 691,955 and 691,957 are referred to.
Patent GB-180246-A (GB)
Title: Improvements in boot trees
IPC: A43D3/14
Filed: 1921-08-06
Abstract: 180,246. Pesce, A. Aug. 6, 1921. Trees and stretchers.-A boot tree comprises toe and heel parts A, B connected by a plunger D pivoted to the toe part and slidable against the action of a spring G, in a tube C fixed to the heel part, the tube being closed by a screw cap H. Reference has been directed by the Comptroller to Specifications 6076/01, 20717/13, 23652/14 and 160,390.
Patent GB-597356-A (GB)
Title: Improvements relating to means of chain adjustment on cycles, motor cycles and the like
IPC: B62M9/16
Filed: 1945-08-15
Abstract: 597,356. Cycle-chain adjusters. RUNWELL CYCLE CO. (BIRMINGHAM); Ltd., and HEFFORD. C. H. Aug. 15, 1945, No. 20954. [Class 136 (iii)] A chain adjustor for cycles, motor-cycles and the like comprises a plate a having a hole a' adapted to fit on the wheel spindle and a plurality of serrations a<2>, a<3> on its periphery to engage with a stud b<1> on the cycle fork. The plate is oblong and the serrations a<2> along one edge are interspaced with respect to the serrations a<3> along the other edge to allow of fine adjustment by reversing the plate. For still finer adjustment two or more holes may be provided.
Patent GB-1151359-A (GB)
Title: Photoflash Socket Structure
IPC: G03B15/04
Filed: 1966-05-12
Abstract: 1,151,359. Lamp - holders. EASTMAN KODAK CO. 12 May, 1966 [23 July, 1965], No. 21016/66. Heading H2E. [Also in Division G2] A photoflash socket structure for receiving a multilamp flash unit (12) (Fig. 2, not shown), having a plurality of ignitable photoflash lamps mounted on a base (12<SP>1</SP>), comprises a support plate 10 provided with an aperture 14; socket means including a sleeve 13 mounted in the aperture and provided with a central opening 15 through which the base (12<SP>1</SP>) can be inserted and a stabilizing spindle 30 part 29 of which engages an inserted base; resilient means 25-27 arranged in the socket means so as to retain an inserted base in rotatable relation to the socket means; and means coupled to the resilient means for disengaging the latter from the base to permit removal of the unit from the socket means. On insertion of a unit, one pair of contacts (17), (18)-a pair being provided for each lamp, are engaged by compressing contacts 21, 22. To release the unit, a button 40 is depressed and the unit is partially ejected by the resilient contacts 21, 22. In another embodiment (Figs. 5, 6, not shown), one contact (17) engages one of four contacts (68) on a ring (46) and the associated contact (18) engages a fixed contact (69).
Patent GB-953459-A (GB)
Title: Improvements in or relating to circuit arrangements for frequency modulation
IPC: H03C3/00
Filed: 1960-06-15
Abstract: 953,459. Frequency modulation. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 15, 1960 [June 18, 1959], No. 21031/60. Drawings to Specification: Heading H3R. Describes the same subject-matter as Specification 879,507 but the claims are different Specification 512,008 also is referred to.
Patent GB-802628-A (GB)
Title: New thiobarbituric acid derivatives
Inventor: PEEL MERVYN EVAN
Filed: 1955-07-21
Abstract: The invention comprises thiobarbituric acid derivatives of the formula <FORM:0802628/IV (b)/1> where R is ethyl or allyl, and the sodium salts thereof, also processes for their preparation by condensation of N-methyl-thiourea with either a sec-butyl-R-substituted-cyanoacetic acid alkyl ester, followed by acid hydrolysis of the resulting 4-imino-thiobarbituric acid, or with an R-substituted-malonic acid di-alkyl ester, the alkyl groups containing not more than three carbon atoms.  In examples: (1) ethyl sec-butyl-ethyl-cyanoacetate and N-methylthiourea are refluxed in ethanolic sodium ethoxide, the cooled mixture diluted with water and acidified yielding 5 - sec - butyl - 5 - ethyl - 1 - methyl - 4-imino-thiobarbituric acid which on hydrolysis with dilute HCl gives 5-sec-butyl-5-ethyl-1-methyl-thiobarbituric acid; (2) as in (1) using ethyl sec-butyl-allyl-cyanoacetate to produce 5 - sec - butyl - 5 - allyl - 1 - methyl - thiobarbituric acid, which, (3), is dissolved in ethanolic sodium ethoxide and the solution distilled in vacuo to give the corresponding sodium salt; (4) diethyl sec-butyl-allyl-malonate and N-methylthiourea are refluxed in ethanolic sodium ethoxide, the cooled mixture poured on to solid carbon dioxide and treated with water yielding the product of (2).
Patent GB-1007924-A (GB)
Title: Apparatus for making holes in the ground
IPC: E21B7/02
Filed: 1963-05-28
Abstract: 1007,924. Boring earth &c. ANSTALT FUR MONTAGE-TECHNIK. May 28, 1963 [May 29, 1962; Jan. 9, 1963], No. 21171/63. Heading E1F. [Also in Division F3] A substantially cylindrical cavity is formed in ground which may be frozen or covered by vegetation, rubble, peat or ice by igniting an explosive charge to drive a projectile into the ground, the projectile being expendible and remaining at the bottom of the cavity. The projectile 29 is fired from a barrel 11 mounted by means of a recoil spring 15 in a housing 12 mounted on wheels 3 and held vertically by a draw-bar 4 and adjustable spike 5. The projectile which may have a tapered, flat or concave nose is prevented from falling through the barrel by a stop 38 which may take the form of a deformable plate 42 (Fig. 9) or a deformable or shearable annular projection. The body of the projectile may be of two part construction and may have a cavity which may contain sand, sawdust, or scrap lead. The charge for firing the projectile is contained in a sleeve 24 and is ignited by means of an electrical circuit including means for preventing ignition unless the barrel is substantially vertical, the closure 26 is locked to the barrel, the barrel is in the vertical position shown, and an insulating tube 35 housing the firing leads 48, 49 is almost fully withdrawn from the draw-bar to force the operator away from the barrel. In a modification the housing is supported by two wheels and a screw jack. The projectile may have an asymmetrical nose to facilitate the formation of cavities having a curved longitudinal axis, and a hollow at the rear of the projectile may contain a charge so that the sleeve with its charge may be dispensed with.
Patent GB-947936-A (GB)
Title: Tetraazaporphin dyestuffs
IPC: C09B47/26
Filed: 1961-06-12
Abstract: The invention comprises dyes of the formula <FORM:0947936/C3/1> wherein A is a tetrazaporphin dye radical, X is -CH2-, -SO2- or -CO-, R is hydrogen or an optionally substituted alkyl, cycloalkyl, aralkyl or aryl radical, Ar is a mononuclear radical of the benzene or naphthalene series, Y is an optionally N-substituted sulphonamide group or, when X is -SO2-, Y may also be an alkylsulphonylamino or a substituted or unsubstituted phenyl-sulphonylamino group and n is an integer from 1 to 8, the dyes being free from methylolamino groups. When Y is a sulphonamide group the N-substituents may be alkyl which may be substituted, for example by hydroxyl or sulphate ester, and in which the carbon chain may be interrupted by nitrogen, allyl, aralkyl, cycloalkyl or substituted or unsubstituted aryl, or the nitrogen may form a part of a hetercyclic ring.  The dyes are made by reacting tetrazaporphin sulphonyl chlorides, carboxylic acid chlorides or chlormethyl compounds with (a) aminoaryl sulphonamides, (b) primary or secondary aromatic amines, sulphochlorinating the products and reacting them with primary or secondary amines, or (c) arylsulphonic acids containing a primary or secondary amino group, converting the products to sulphochlorides and condensing with primary or secondary amines, or by reacting tetrazaporphin sulphochlorides with primary or secondary arylamines substituted by alkylsulphonylamino or optionally substituted phenylsulphonylamino groups.  Examples are given.  The dyes dye or print cotton, regenerated cellulose materials, wool, silk and synthetic polyamide or polyurethane fibres.  Those dyes containing groups reactive with textile materials containing hydroxyl groups dye and print cotton and regenerated cellulose in conjunction with an alkali treatment.
Patent GB-1301575-A (GB)
Title: Wind instrument mouthpiece
IPC: G10D9/02
Filed: 1970-05-02
Abstract: 1301575 Recorders TOYAMA GAKKI SEIZO KK 2 May 1970 21187/70 Heading G5J A wind slot member 14 and a disc 20 are mounted at the top of a double walled hollow cylinder 5, and further supported by a hollow barrel 1 glued on a taper 4 to the top of the cylinder. The disc 20 also has a taper 21, and the inner wall 11 is fixed to the disc 20. The space 2 in the barrel may be filled with cotton or foamed material, and the construction may be of moulded plastics or metal.
Patent GB-202160-A (GB)
Title: Improvements in and relating to settings for boilers
IPC: F23M5/02
Filed: 1922-08-04
Abstract: 202,160. Stewart, J. T. Aug. 4, 1922. Settings; flues, external.-In settings for steam boilers, loose removable pyramidal or triangular baffles D, Fig. 1, are arranged at intervals along the bottom or the sides of the flues, to defect the heated gases away from the walls and to cause them to impinge upon the boiler shell. The baffles may be made in one piece of cast iron hollow at the back, as shown in Fig. 4, or they may be built up of cast-iron plates or fireclay blocks having interlocking tongues and grooves. According to the Provisional Specification, the baffles may be built permanently into the flues.
Patent GB-1097834-A (GB)
Title: Improvements relating to servo apparatus
Inventor: ANGUS ERNEST THOMAS
IPC: G05B19/35
Filed: 1965-05-20
Abstract: 1,097,834. Programmed control of machine tools. FERRANTI Ltd. May 19, 1966 [May 20, 1965], No. 21330/65. Heading G3N. A work-table 10 is positioned with respect to the framework 9 of a machine tool in dependence on the relative phase # T  of cyclic reference and main demand signals recorded in separate tracks along a magnetic tape 11. The reference demand signal is detected by a pick-up 12 and fed to a stage 14 having quadrature square-wave outputs TR1, TR2, and the main demand signal 13 is fed to a stage 15 having a square-wave output TX. The signals TR, TX are demodulated in a stage 16 which derives from the TX signal, under control of the TR signals, four rectangular signals TC1- TD4, which are width modulated in dependence on the relative phase # T  of the demand signal; a plot of a TD signal with respect to # T  results in a cyclic triangular waveform. Reference and main measurement signals, having a relative phase # M  which varies in dependence on the actual position of the workpiece, are provided by an optical grating system 21 comprising a reference grating 22 secured to the framework 9, a main grating 20 secured to the work-table 10 and a common grating 24 rotated at a constant speed. The grating patterns are sensed by reference and main photo-cells 12' and 13', which, through stages 14', 15', similar to 14, 15, develop reference measurement quadrature square-wave signals MR1, MR2 and a main signal MX of a higher frequency than the demand signals. The signals MR, MX are applied to a demodulator 16', similar to 16, deriving higher frequency width-modulated signals MD1-MD4 which are gated by the signals TD1-TD4 in a system 31. The mean potential of the output from each gate in the system is dependent on the relative values of phases # T  and # M . The gated signals are fed to a combined low-pass filter and amplifier stage 32 wherein they are summated and smoothed. The summated output from stage 32, representative of the departure of relative phases # T  and # M  from a quadrature relationship, is applied over on lead 33 to a motor 34 positioning the work-table in a direction to cause the summated output to tend to a null thereby bringing the actual position of the work-table into conformity with the recorded position.
Patent GB-663618-A (GB)
Title: Improvements in or relating to containers for liquids
IPC: B65D85/30
Filed: 1947-08-06
Abstract: 663,618. Boxes. GARRETTO, P. Aug. 6, 1947 [Jan. 9, 1940], No. 21335/47. Class 18. A flask 1 for liquid is supported in a spherical casing 6 by a frame 2 having trunnions 3 mounted in a ring 4 itself having trunnions 5 which pivot in the casing 6. Each pair of trunnions is disposed at right angles to the other so that the flask retains an upright position regardless of the position which the case may assume. The casing 6 is in two halves hinged together and held closed by a catch.
Patent GB-294610-A (GB)
Title: Improvements in apparatus for opening and closing bulkhead doors of vessels
IPC: B63B19/00
Filed: 1928-07-23
Abstract: 294,610. Atlas-Werke Akt.-Ges. July 27, 1927, [Convention date]. Operating doors hydraulically. - For closing bulkhead doors by pressure fluid controlled from a central station and for opening and closing the doors locally a pipe in which is maintained a constant supply of pressure fluid is connected to a four-way valve disposed at each bulkhead door and provided with a hand-lever, each valve being under the control of a piston in a cylinder of which one end is connected through a pipe with a three-way valve disposed at the central control station. A constant supply of pressure fluid is maintained in a pipe 11 connected through branch pipes 12, 13 with the local four-way valves 14, and these valves are connected with the ends of the door-operating cylinders 15 through pipes 19, 20. The valves 14 are operatively connected with the local pistons 8, the lower ends of the cylinders 7 being connected through pipes 5, 6 with a control pipe 4 in communication with a three-way valve 3 at the central control station. When the valve 3 is set as shown in Fig. 3, pressure liquid from the reservoir 1 is admitted by the valve 3 to the pipe 4 and the pistons 8 are raised to move the valves 14 so that liquid pressure from the pipe 11 is admitted by the valves 14 to the upper end of the cylinders 15, the doors 18 then closing. Exhaust liquid passes through the valves 14 to the pipe 23 leading to the container 24. A door may be opened locally by lifting a handle 26 to set its valve 14 into the position shown in Fig. 4; pressure liquid then passes through the valve 14 to the lower end of the cylinder 15 through the pipe 20. For " bulkheads open," the control valve 3 is set so that the pipe 4 is in communication with a pipe 25 leading to the exhaust tank 24. Any door may then be opened or closed by setting its control handle 26 in its raised or lowered position.
Patent GB-930941-A (GB)
Title: Improvements relating to the resistance welding of metal parts
IPC: B23K13/04
Filed: 1961-06-14
Abstract: 930,941. Making electric cables; welding by pressure. AMERICAN MACHINE & FOUNDRY CO. June 14, 1961, No. 21529/61. Classes 83 (2) and 83 (4). In resistance welding opposed surfaces on two metal flanges upstanding from adjacent edges on two metal parts, the flanges are continuously advanced side by side to converge and meet at a weld point where the flanges are squeezed together and the opposed surfaces are heated progressively by applying to the flanges in advance of the weld point an alternating current of such frequency that it is concentrated in the nearest regions of the opposed surfaces to resistance heat these regions to welding temperature. In sheathing a cable 10, Fig. 1, a metal sheath 11, provided with flanges 12, 14 at 90 degrees to the tangent plane at the flange base and spaced apart in a V gap, is advanced with the cable by feed rolls (not shown) while the inner surfaces 12a, 14a of the flanges are heated to reach welding temperature at the apex point w by current of 100 kilocycles or more applied by electrodes 15, 16 engaging the flanges in advance of the point w. At the point w the flanges are squeezed by rollers 17, 19 and the upper portion of the welded flanges is removed by a scarfing tool 20. Alternatively, the welded flanges may be folded down against the sheath. In a modification the flanges 22, 23, Fig. 5, diverge, the electrodes 15, 16 are applied to the inner surfaces of the flanges and the squeeze rolls 24, 25 have bevelled surfaces 26, 27 engaging under the exterior surfaces of the flanges. The welded flanges may be scarfed or mashed down in opposite directions on the tube. Blocks of magnetic material may be placed adjacent the flanges in advance of the weld point to retain the high-frequency current close to the inner surfaces of the flanges. Flat parts provided with flanges may be welded by the method described.
Patent GB-859997-A (GB)
Title: Improvements in or relating to threshing machines
Inventor: BLOM MICHAEL
IPC: A01F12/34
Filed: 1956-07-12
Abstract: 859,997. Threshing machines. MASSEY-FERGUSON (UNITED KINGDOM) Ltd. July 3, 1957 [July 12, 1956], No. 21550/56. Class 6(3). A straw shaker mat 18 in a threshing machine has transverse ribs 19 of generally triangular shape in cross-section, each with a front wall 26 and a rear wall 25, the front wall being convex. Side walls 11 of the straw shaker mounted on a framework (not shown), have serrations 13, the rear sides 12 of which are steeper than the front sides 14. The mat is in sections of sheet metal, interrupted at intervals corresponding with stops 15 in the side walls 11 of the straw shaker to which the mat is rigidly attached by lugs 21. Between each two ribs 19 of the mat is a series of rectangular holes, Fig. 3 (not shown).