baber/WOPTO huggingface dataset:
Patent GB-1323972-A (GB)
Title: Process for the manufacture of reactive metal-containing  azo dyestuffs
IPC: C09B62/515
Filed: 1971-04-19
Abstract: 1323972 Metallized azo dyes FARBWERKE HOECHST AG 19 April 1971 [9 April 1970] 26614/71 Heading C4P The preparation, by treating the corresponding metallized azo dyes containing -SO 2 CH 2 CH 2 OH groups with sulphamic or chlorosulphonic acid of metallized azo dyes of formula wherein D is a benzene or naphthalene residue, A is the residue of an azo component of the benzene, naphthalene, pyrazolone or acetoacetarylide series, M is a metal atom of atomic number 24 to 29, X is -O- or -COO- in o-position to the azo group, Z is -O- or -NH- in o-position to the azo group, n is 1 to 4 and m and p are 1 or 2, is described. The dyes may be used to colour natural and synthetic polyamide, polyurethane and especially cellulose, fibres in a wide variety of shades.
Patent GB-282632-A (GB)
Title: Improvements in power operated vacuum tube construction and circuit therefor
IPC: H04B15/00
Filed: 1927-10-08
Abstract: 282,632. Arcturus Radio Co., (Assignees of Krahl, W. L.). Dec. 24, 1926, [Convention date]. Vacuum tubes. - A valve for use as a detector, rectifier, or amplifier, has a cathode connected electrically with a straight heatingfilament, which is supported within the cathode without intervening solid matter, and the input circuit is connected between a control electrode and the heating filament at a point having the potential of the cathode. As shown in Fig. 1, a carbon filament 21 is mounted inside a cathode tube 19 of nickel coated with oxides of barium and strontium. The tube may be slit or formed as a coil of strip so as to reduce inductive effects. The upper end of the cathode is connected by a conductor 29 with the support 28 for the filament, and the lower end is connected with one of the filament leads. The cathode extends beyond the filament at each end and a slit sleeve 8 is provided at the lower end so as to shield the filament electrostatically. A metallic film 16, extending over the whole or a part of the outer or inner surface of the bulb, acts as a shield and is earthed. In the arrangement shown in Fig. 2, the filaments are heated by alternating current through a transformer 43, and a variable resistance 90. The potential of the metallic film 16 is varied by means of a battery E. A condenser 38 is connected between the' grid 18 and the output-circuit of the second valve, and the output current is varied by a resistance 91. The circuit may be modified by the addition of switches for connecting a continuous current and supply for the filaments. Two valves may be used as a full-wave rectifier for supplying current to the anodes. Specification 278,750 is referred to.
Patent GB-1468665-A (GB)
Title: Mounting means for container tanks for transport of bulk liquids
IPC: B65D88/12
Filed: 1974-05-16
Abstract: 1468665 Containers MI ENGINEERING Ltd 16 May 1974 [5 June 1973 3 Nov 1973] 26647/73 and 51139/73 Heading B8P A framed I.S.O. tank comprises end frames connected by longitudinal members 5 and at least two pairs of side mounting assemblies secured to the members 5 and to arcuate portions of hoops or bands 7 welded round the tank shell S. Each end frame comprises top and bottom members (1), Fig. 2 (not shown), side members 2 and corner members 3, the connections between the longitudinal members 5 and the end frames being reinforced by gussets 6. Bracing members 14 are also provided along with diagonal bracing members (16) for the end frames, which may be welded to collars (15), Fig. 6 (not shown), projecting from the ends of the tank shell S. The side mounting assemblies comprise hollow sections 8 and profiled plates 9, with end caps 12 to close the assemblies.
Patent GB-419161-A (GB)
Title: Improvements in and relating to tables, stools, and like articles of furniture
IPC: A47B7/02
Filed: 1933-09-28
Abstract: 419,161. Tables, stools, &c. JENKINS, G. B., c/o Jenkins Productions, Ltd., Dereham, Norfolk. Sept. 28, 1933, No. 26711. [Classes 52 (i), 52 (ii), and 52 (iii).] Tables and stools and like articles are made with legs 3 at right-angles to the top 1, and outside the perimeter, so that several such articles of the same size may be stacked in the manner indicated with their legs parallel with one another and the edges of the part 1 in the same vertical surface or surfaces. The legs may be in one with the top, or detachably secured thereto by plates 2 and bolts 4.
Patent GB-801690-A (GB)
Title: Improvements in means for the dispersal of fluff or lint from knitting machines
Inventor: SHORTLAND ARTHUR
IPC: D04B35/32
Filed: 1955-09-19
Abstract: 801,690. Knitting-machines. MELLOR BROMLEY & CO., Ltd. Sept. 6, 1956 [Sept. 19, 1955], No. 26718/55. Class 74 (2). An air compressor 29 is located on a circular knitting-machine and driven from the gear drive for the take-down mechanism. A flexible connection 34 has a nozzle 37 for manual manipulation to remove fluff or lint from parts of a machine. The nozzle 37 can also be plugged into a tubular ring 33 having downwardly-directed nozzles so that air is directed at a low pressure on to the yarn feeders or other components requiring to be kept free from lint or fluff. A further flexible connection 46 permits compressed air to be supplied to an annular chamber 44, the outer flanged portion 48 being rotated around the inner portion 43 so that a nozzle 49 projecting from the portion 48 periodically passes and blows air against the stop motion 28 and other yarncontrolling elements mounted on the head of the machine. The portion 48 is gear driven through a flexible drive 51 from the dial drive of the machine. Specification 797,677 is referred to.
Patent GB-989341-A (GB)
Title: Process for the separation of mixtures by means of distillation or absorption
Inventor: SANT WILLEM CORNELIS VAN T
IPC: B01D3/20
Filed: 1960-08-02
Abstract: 989,341. Contacting vapour or gas with liquid ; distillation columns. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. July 27, 1961 [Aug. 2, 1960], No. 26724/60. Headings BIB and B1R. FIG 1 In a column (Fig. 1) fitted with trays 2-7 for contacting vapour or gas with liquid, e.g. a distillation or absorption column fitted with grid-trays or with trays provided with bubblecaps, part of the vapour rising in the column towards a tray passes through one or more openings in the tray, on which there is a liquidlayer 8, and another part of the vapour, which is to avoid contact with the liquid on that tray, is by-passed through or around the tray via a by-pass passage 10, 12, 14 and is made to issue into the column at a point higher than the zone where there is froth or dense foam above the tray. The column may also be constructed (Fig. 2) so that the liquid flowing down the column towards a tray passes through one or more openings in the tray or through one or more downcomers 21, 24 of this tray whilst another part of the liquid is by-passed through or around the tray by a by-pass passage 22, 25 so as to avoid contact with the liquid on the tray, and is made to issued into the column below the tray. The degree of vapour by-pass and/or liquid by-pass can be altered by valves, in order to ensure that a number or all the trays have substantially the same load. Reference is made to the fractionation of crude hydrocarbon oil.
Patent GB-816517-A (GB)
Title: Clutch release mechanism as applied to vehicle power-operated doors
IPC: F16D7/02
Filed: 1956-09-03
Abstract: 816,517. Friction coupling. BEDDOW,V.J. Aug. 14, 1957 [Sept. 3, 1956], No. 26805/56. Class 80 (2). A torque limiting friction coupling for driving power-operated doors on vehicles, comprises friction discs 2 keyed alternately to driving and driven members 31, 1 and adjustably loaded by a spring 6, the upper end of which bears through a cup 7 against an abutment formed by a cam 17 pivoted at 13 on a nut 11, 12 adjustably screwed on the end of the driving-shaft 3, whereby the cam 17 can be turned about the pivots 13 between coupling engaged and fully released positions (full and dotted lines respectively) without disturbing the adjustment of the loading-spring 6. Such adjustment is set by a lower nut 9, locked by a grub-screw 10 against which nut 9 the camsupporting nut 11, 12 is tightened. One cam 17 is provided on each side of the nut, connected by an operating handle 15.
Patent GB-994724-A (GB)
Title: A-c. motor control system
IPC: H02P23/00
Filed: 1963-07-05
Abstract: 994,724. Fluid-pressure control apparatus. WARNER ELECTRIC BRAKE & CLUTCH CO. July 5, 1963 [July 6, 1962], No. 26812/63. Heading F1P. [Also in Division H2] An hydraulic or pneumatic power transmission system is used to operate the differential linkages 250, 250a of electric motors 220, 220a (see Division H2) which may be used to drive the wheels of a vehicle. Quadrant lever 270 controls the operation of selector valve 269b and control valve 260 to apply pressure to positioning servos 261, 262. Operation of selector valve 269b also applies pressure to servo 274a which operates another selector valve 274 and applies fluid under pressure from valve 273 to servos 271, 272 which are mechanically connected to the fulcrums of linbages 250, 250a respectively. When quadrant 270 is moved to the forward (F) position line 263 is pressurized and servo pistons 261, 262 move upwards to angle the linkages and cause the motors to rotate and drive the vehicle forward. If a motor 220 is now slowed and overloaded, e.g. in a turn, reaction from linkage 250 on servo 271 will force the piston up and thereby reduce the angle of linkage 250 and the torque of the motor. The safe torque can be set by adjusting the system pressure using valve 273. In a modification for use in skid-steered vehicles two systems are used with a quadrant lever controlling each track independently.
Patent GB-1524456-A (GB)
Title: Scanning device
IPC: G11B25/06
Filed: 1976-06-28
Abstract: 1524456 Rotary-head magnetic tape recording and playback SIEMENS AG 28 June 1976 [6 Oct 1975] 26902/76 Heading G5R In a device for scanning a magnetic tape, e.g. for reading a single video track corresponding to a still picture from a stationary tape, the free end of the tape 13 is fed, past rollers 8 and an adjustable guide strip 9 as shown, towards a head drum 1 which is rotating at such a speed that the tape is wrapped at least part-way round the drum but an air bearing is formed between the tape and the drum. There may be a multi-track array of heads 5, 6 along the drum, with corresponding erase heads.
Patent GB-359137-A (GB)
Title: Improvements in buoys for swimming and bathing
IPC: B63B35/74
Filed: 1930-09-09
Abstract: 359,137. Lifebuoys. STEANE, C. F., 68, Casewick Road, West Norwood, and FIND ON, A. C., 67, Gordon Mansions, Francis Street, Gower Street, both in London. Sept. 9, 1930, No. 26952. [Class 77.] An elongated flexible seat C brought to a single point at each end, is hung from two relatively small inflatable members A secured one to each corner, each at a single point of connection. A belt B of flexible material such as canvas is secured to each buoyant member by a rubber solution. The seat C comprises a rectangular piece of netting drawn together at each end by a ring and attached by split rings C<2> to the belts. The seat may be provided at one or more edges with a rigid or semi-rigid rod or plate, which may be buoyant and of rubber. The buoys may be enveloped in a net instead of using belts ; the ends of the material forming the seat may enclose the bladders. The seat may comprise an inflatable cushion.
Patent GB-383361-A (GB)
Title: Improvements in bicycle frames
IPC: B62K3/12
Filed: 1931-09-29
Abstract: 383,361. Tandem bicycles. NEW HUDSON, Ltd. and BURNETT, J. W., St. George's Works, Icknield Street, Birmingham. Sept. 29, 1931, No. 27046. [Class 136 (iii).] In a tandem bicycle frame, the various stays are of a twin or duplex form, and the jointing connections are of a detachable nature. A tandem bicycle frame comprises a twin or duplex top stay a connected to the head tube c and to the front and rear seat tubes g, e, a twin down stay h connected at two points i, j to an inclined lug k on the head tube c and connected at l to the top or bottom of the front crank bracket m, a twin bottom stay n and chain stay o connected to the front and rear crank brackets m, s, a back stay u connected to the rear seat tube e, and a twin cross girder stay w connected to the lower part of the head tube c and to intermediate parts of the seat tubes g, e. Each connection consists of a cross bolt passing through flattened parts of the twin tubes or bars or through clamping- members mounted thereon. The cross stay w may be extended as shown at w<1> for attachment to the rear fork ends q. In a modification to accommodate a lady on the rear seat, the top stay is divided at f and the rear part dropped and connected to the seat tube e and fork ends q.
Patent GB-533087-A (GB)
Title: Improvements in electric control valves with vapour or gas filling
IPC: H01J13/02
Filed: 1939-10-03
Abstract: 533,087. Metal-vapour rectifiers. AKT.-GES. BROWN, BOVERI, & CIE. Oct. 3, 1939, No. 27099. Convention date, Oct. 3, 1938. [Class 39 (i)] In gas or vapour filled electric control valves, having a liquid cathode b and ignition electrode c, the cathode container a has a tubular guide member h projecting above the surface of the cathode and acting to lead in the ignition electrode. An insulating cup-shaped member i, with an inwardly cupped base surrounds the member h, and one or more arc fixing rings k of refractory metal are disposed inside the member i. The guide member h has a downward extension e filled with mercury g supporting a float d by which the ignition member is actuated. For this purpose a coil p is wound on the pillar o on which the valve is mounted, a damping device f being provided on the float d.
Patent GB-1084937-A (GB)
Title: Transistors
Inventor: CULLIS ROGER
IPC: H01L29/78
Filed: 1966-06-17
Abstract: 1,084,937. Field effect transistors. STANDARD TELEPHONES & CABLES Ltd. June 17, 1966, No. 27106/66. Addition to 1,045,429. Heading H1K. A semi-conductor slice includes at least two insulated gate field effect transistors having source-drain channels extending across the thickness of epitaxial layers of unlike conductivity types respectively. In the embodiment, boron is diffused into a portion of an N-type, 2 ohm-cm. silicon slice 1 and then three layers of P, N and P type respectively are epitaxially deposited on the slice. Photoetching, masking and deposition techniques are used to provide a first pair of metallic connections (aluminium) S and D to the first and third P-type layers and a second pair of metallic contacts S and D to the substrate and second N-type layers. Gate metallic electrodes G are provided to act as control electrodes insulated by a thin oxide layer in each case, from the second N-type and first P-type layers respectively. Thus a PNP and an NPN field effect transistors are provided. Silicon oxide or silicon nitride may be used as the dielectric.
Patent GB-230392-A (GB)
Title: Improvements in or relating to anti-vibration devices for engines mounted on motor vehicles
IPC: B60K5/12
Filed: 1924-11-13
Abstract: 230,392. Clark, E. E. Nov. 13, 1924. Motors. mounting or supporting.-With the object of preventing or reducing vibration of the engine, a yoke 2, consisting of two vertical arms with overlapping ends secured together, is attached to the engine supports 2, 3 and is provided with engine-engaging members 16, 17 adjustable by screws. The yoke may be made in one piece.
Patent GB-783823-A (GB)
Title: Cigarette filter tips or other smoking article filter cartridges
IPC: A24D3/10
Filed: 1955-09-23
Abstract: Cigarette filter tips or other smoking article filter cartridges include an active substance comprising a cellulose ethercarboxylic acid such as carboxymethyl cellulose, which may be formed from starch, degraded starch or wood cellulose and which may have any reactive hydroxy groups still present therein esterified or etherified.  The active substance may be coated on to a chemically inert carrier by immersing the carrier in an aqueous solution of a salt of the substance and treating with acid.  Wads of active substance may be used where it is fibrous due to nulling or to retention of the fibrous structure of the initial cellulosic material.  Reference is made to the substance being obtained in the form of flakes or loose powder and to the use in prior filters of tannic acid, tartaric acid, metal oxides and hydrates, bleached cellulose, partially oxidized cellulose, methyl cellulose and cellulose triacetate.  U.S.A. Specification 2,228,383 is referred to.
Patent GB-242300-A (GB)
Title: Improvements relating to method and means for cutting screw threads
IPC: B23G1/22
Filed: 1924-10-29
Abstract: 242,300. Gottmanns, K. Oct. 30, 1924, [Convention date]. Turning.-A double-conical blank h is threaded in a lathe in a single continuous operation by a tool adjustably mounted in a slide b on the lathe bed a which also carries a rotatable circular plate e having an arm i which extends below the toolslide and is provided with a stop k. coacting with adjustable abutments m, n on the lathe bed. The blank is carried in a chuck g rotated by mechanism (not shown) and adjustable in a guide f on the plate e. In operation, the work is first adjusted so that a generator of one of the conical surfaces is parallel to the line of cut, and the point d on the generator between the two conical surfaces lies in the axis of rotation of the plate e. The longitudinal tool feed is then engaged and when the tool reaches the point d the abutment k is automatically disengaged from the abutment m and the plate e is turned until the abutments n come into engagement. The blank is thus brought to the position shown in dotted lines and on further forward feed of the tool, the second conical surface is correctly threaded. In a modification, the tool carrier may be provided with a revolving head. The invention is also applicable to threading blanks having doubleconical exterior surfaces.
Patent GB-420252-A (GB)
Title: Improvements in or relating to hydraulic change-speed gears of the turbine type
IPC: F16H61/54
Filed: 1933-10-03
Abstract: 420,252. Hydraulic transmission of power. FOTTINGER, H., 65, Berlinerstrasse, Wilmersdorf, Berlin. Oct. 3, 1933, No. 27231. Convention date, Oct. 3, 1932. Addition to 383,534. [Class 69 (ii)] The apparatus described in the parent Specification is modified by increasing the number of turbine rings in operation at higher speeds of the driven member ; the number of pump rings in operation may also be increased. The form shown in Fig. 1 has an axially-movable guide ring 7, and additional turbine and pump rings 8, 12 movable into and out of chambers 9, 13. The chambers for the additional turbine and pump rings may be in the core ring of the gear, as shown in Fig. 2, the ring 15 being below the ordinary turbine 6 and opposite the guide ring 7. The forms of Figs. 1 and 2 may be combined, and pivotally mounted turbine blades provided at 23. The blades of the pump rings 3 and 12 may be of opposite curvature, and the number of blades in the ring 12 may be much greater than the number in the ring 3 ; the blades of the turbine rings may also be oppositely curved. The rings may be moved by manually-controlled hydraulic or other means, or automatically, e.g., by a centrifugal or other governor, or by means actuated by the liquid flow. The flow may act on thrust plates, or as shown in Fig. 6, a ring may be mounted on a lever 26 so that according to the direction of reaction, the ring is swung into or out of the circuit.
Patent GB-1079725-A (GB)
Title: Tertiary-alkyl peralkenoates, their preparation and the use thereof in polymerisationprocesses
IPC: C07C409/38
Filed: 1966-07-01
Abstract: Ethylenically unsaturated compounds are polymerized at elevated temperatures and pressures in the presence of a catlytic amount of a peroxy ester of the formula <FORM:1079725/C3/1> wherein each R is a C1 to C6 alkyl group, and R1, R2, R3, R4 and R5 are hydrogen, halogen, C1 to C3 alkyl, aryl, aralkyl or cycloalkyl groups (see Division C2 for preparation).  Copolymers of more than one alkene as well as copolymers of alkenes plus other monomeric compounds, for example, vinyl acetate, vinyl chloride, methyl acrylate and methyl methacrylate, may be obtained using these catalysts. Examples are given for the production of polyethylene, polyvinyl chloride and a vinyl acetate-ethylene copolymer.ALSO:The invention comprises compounds of the formula <FORM:1079725/C2/1> wherein each R is a C1 to C6 alkyl group, and R1, R2, R3, R4 and R5 are hydrogen, halogen, C1 to C3 alkyl, aryl, aralkyl or cycloalkyl groups. They may be obtained by reacting an aqueous solution of a compound of the formula (R)3COOM wherein M is an alkali metal, with a compound of the formula <FORM:1079725/C2/2> wherein X is Cl or Br, in an organic water-immiscible solvent, at a temperature of -25 DEG  to 25 DEG  C. Specified products are t-butyl per-3-butenoate, t-butyl per-2-methyl-3-butenoate, t - butyl - per - 2 - ethyl - 3 - butenoate, t - butyl - per - 4 - methyl - 3 - butenoate, t - amyl - per - 2 - phenyl - 4 - chloro - 3 - butenoate and t - butyl - per-2-cyclohexyl-3-butenoate. An example is given for the preparation of the compounds. They are useful as polymerization catalysts for the polymerization of ethylenically unsaturated hydrocarbons (see Division C3).
Patent GB-159920-A (GB)
Title: Improvements in and relating to the construction of vacuum tubes, and the like, especially of the type used in wireless communication
IPC: H01J19/50
Filed: 1919-11-06
Abstract: 159,920. Taggart, J. Scott-. Nov. 6, 1919. Vacuum tubes.-The supports of an electrode of a thermionic valve are secured along the wall of a funnel or bulb by means of wires or rivets having a part embedded in the material of the funnel &c. The rivets consist preferably of U-shaped wires a<1>, embedded in a funnel b as shown in Fig. 1, the free ends of the wires being twisted together around the supports c<1>, Fig. 4, of an anode d, or grid. The wires may pass through holes in the supports, or the supports may be narrowed or tapered or provided with projections for reception of the wires, which may be arranged longitudinally or transversely with respect to the funnel. The ends of the wires may be screwthreaded, and provided with nuts. Split rivets may be used, the ends being bent in opposite directions. The wires or rivets are of nickel-iron alloy, platinum-coated metal, platinum, or other metal having a similar coefficient of expansion to that of glass or other insulating material. The wires &c. may be used for securing the support c<1>, Fig. 3, of a filament e, the ends of which are connected with metal strips e<1>, e<2> extending from the pinch. A binding-wire may be passed around the funnel and supports. In order to steady an anode, wires may be arranged radiating from the free end of the anode to touch the inside of the bulb. A filament, grid, and anode may be supported on the same stem. The stem may be blown out to a larger diameter between the filament and anode to increase the insulation. The supports may be of triangular shape.
Patent GB-274104-A (GB)
Abstract: 274,104. B÷hme Akt.-Ges., H. T., and Bertsch, H. July 8, 1926, [Convention date]. Sulphonated polymerized fats, oils, and acids. -Polymerization, products of fats, oils or fatty acids are sulphonated in the presence of anhydrous strong organic acids, their anhydrides or chlorides. In an example, " Floricin," which is obtained from castor oil by dry heating, is mixed with acetic acid anhydride and the mixture is then treated with sulphuric acid in the usual manner. Glacial acetic acid or acetyl chloride may also be used. Specifications 261,385 and 263,117 are referred to.