baber/WOPTO huggingface dataset:
Patent GB-859284-A (GB)
Title: Improvements in or relating to silicone rubber
Filed: 1958-09-01
Abstract: An auto-adhering silicone rubber contains from 0,015 to 0,5% (by weight of the siloxane in the rubber) of boron added as an alkyl borate prior to vulcanisation.  Borates specified are methyl-, propyl-, butyl- and octadecyl-borates.  The compositions used for making the rubbers comprise (a) convertible siloxanes having alkyl, alkenyl, aryl, alkaryl or halogenated hydrocarbon radicals, and (b) fillers, e.g. TiO2, ZnO, Al2O3, Fe2O3, SiO2 (fume, aerogel and zerogel), diatomaceous earth, crushed quartz, C black, glass fibres and powder, clay, cork P.T.F.E. and other organic resins and copper phthalocyanine, which may be treated with organosilicon compounds. Vulcanisation may be effected (1) by heating with benzoyl-, dichlorobenzoyl-, di-t-butyl- or other peroxide, (2) by mixing with combinations of alkylpolysilicates or methylhydrogensiloxanes and carboxylates, e.g. lead octoate, dibutylin-dilaurate, stannous octoate and ferric naphthenate, (3) by exposure to high energy radiation such as that derived from a Van de Graff machine or from cobalt 60, or (4), where the siloxane contains chloroalkyl radicals, by mixing with a polyamine, e.g. ethylene diamine or diethylene-triamine.  In typical Examples (1) a mixture of a dimethylsiloxane gum, a liquid dimethylsiloxane, crushed quartz, propylpolysilicate, lead octoate and triethylborate, was pressed into a sheet and allowed to stand at room temperature for 24 hours.  The resulting cured sheet exhibited auto-adhesion; (2) a mixture of a copolymer composed of dimethyl-, phenylmethyl- and methylvinyl-siloxane units, fume silica, a liquid hydroxylated siloxane, Fe2O3, dichlorobenzoyl peroxide and ethyl borate, was extruded in the form of a Tape and heated for 15 secs. at 330 DEG C. Uses: for insulating electrical equipment.  U.S.A. Specification 2,431,878 is referred to.
Patent GB-636391-A (GB)
Title: Improvements in or relating to apparatus applicable more particularly for publicity purposes in places untouched by sunlight
IPC: G09F19/00
Filed: 1946-09-18
Abstract: 636,391. Signs. JOURNEL, J. Sept. 18, 1946, No. 28069. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 18, 1946.] [Classes 3(i) and 3(ii)] [Also in Groups XX and XXXVII] A display apparatus under heliostatic control for illuminating a transparency or screen by sunlight comprises a frame ABC, one face AC of which forms an angle with the horizontal plane equal to that of the latitude at the display point and carries, in a gimbal frame a-h, a mirror constantly rotating about an axis x-y; the outer part of the gimbal frame a-d is arranged to rotate about an axis o-o<SP>1</SP> once in 24 hours and so keeps the axis x-y at right angles to the sun's rays which are thus reflected by the rotating mirror and an adjustable mirror L to direct an intermittent beam towards the transparency or screen. The rotating mirror is double-sided and is driven by an electric motor P, the circuit of which is completed through a thermal switch (see Group XXXVII) which breaks the circuit when the sun is obscured. The outer gimbal frame is driven by clockwork M. The mirror L may be convex, may be replaced by a prism, or both a mirror and a prism may be provided. The Specification as open to inspection under Sect. 91 describes a series of mirrors arranged in pyramid-fashion on a rotatable vertical shaft to illuminate a ring of transparencies. This subject-matter does not appear in the Specification as accepted.
Patent GB-330646-A (GB)
Title: Improvements in or relating to discharge printing
IPC: D06P5/15
Filed: 1929-03-07
Abstract: 330,646. Carpmael, A., (I. G. Farbenindustrie, Akt.-Ges.). March 7, 1929. Divided on 330,563. Colloidal sols.-Colloidal solutions of trivalent titanium salts, for use in discharge printing, are prepared by the aid of protective colloids. In an example, a titanous salt is mixed with fermented sulphite-cellulose liquor and caustic soda.
Patent GB-696991-A (GB)
Title: Improvements in or relating to electron discharge apparatus
Inventor: EAGLESFIELD CHARLES CECIL
IPC: H01J21/20
Filed: 1951-11-30
Abstract: 696,991. Therenionic valves. STANDARD TELEPHONES & CABLES, Ltd. Nov. 30, 1951, No. 28147/51. Class 39(i) An electric circuit arrangementcomprising a thermionic valve having electrodes disposed substantially symmetrically with respect to a given phase and having an electrode subject to vibrating flexion giving rise to microphony, is characterized in that the electrodes are adapted and bias means provided to reduce the microphony by adjustment of an electrical characteristic governing the electron flow on one side of the plane with respect to the corresponding characteristic on the other side. Fig. 1 shows a valve comprising a cathode 2, control grid 3 and two anodes 6 and 7 which are connected together for signal purposes by a condenser 8 but are fed from separate H.T. supplies. If the grid is not perfectly symmetrical about its major axis the mutual conductances to the two anodes will not be the same, but the H.T. supplies to the anodes can then be altered so that the mutual conductances are the same; then if the cathode vibrates equal and opposite signals will appear at each anode and so cancel out. In a modification, Fig. 2 (not shown), each of the anodes 6, 7, is subdivided into two parts, one on each side of the minor axis of the grid, and it is then possible to compensate for asymmetry about the minor axis; the anodes may also be subdivided axially to compensate for axial asymmetry. With a multi-grid tube or a beam tetrode type of tube, the screen grid or the beam forming plates may be sub-divided instead of the anode.
Patent GB-173613-A (GB)
Title: Improvements in or relating to resistance switches for controlling the intensity of electric currents
IPC: H01C10/48
Filed: 1920-10-05
Abstract: 173,613. Watkinson, J. Oct. 5, 1920. No Patent granted (Sealing fee not paid). Regulating-switches.-In resistance-controlling switches, a movable contact is made to travel in a straight line over a row of studs connected to resistance blocks of graphite or the like mounted in slotted frames on the switch base. In one form shown in Fig. 1, the movable contact 1 is mounted on a stationary guide 3, which is fixed to an insulating base 4, and is operated by a lever 24 through a telescopic link 62. A roller 12, spring mounted on the travelling contact, enters successive notches of a fixed plate 14 so as to produce an audible click at each step. The resistance member is composed of one or more rows of graphite blocks 25, curved on one or both meeting surfaces, mounted in frames 26 and pressed together by a spring at the end of each row. The individual blocks mav have the shapes shown in Figs. 12, 13, and 14. A modified form has a sliding knob handle instead of the lever, and a further modification is operated by a screw and travelling nut. Specification 111,821 is referred to.
Patent GB-509284-A (GB)
Title: Touch readable timepieces
IPC: G04B25/02
Filed: 1938-09-29
Abstract: 509,284. Wrist watches. WALSER, E. O. Sept. 29, 1938, No. 28289. [Class 139] A touch-readable timepiece comprises laterally separated touch-readable hour and minute indicating means, each of an area to be substantially encompassed by a finger tip. Separate discs 5, 6 having raised portion 27, 22 for indicating hours and minutes separately are rotated from the central spindle of a normal movement.
Patent GB-637369-A (GB)
Title: Improved method of making electrolytic condensers
IPC: H01G9/04
Filed: 1946-09-20
Abstract: 637,369. Electrolysis ; electrolytic condensers. COMPAGNIE GENERALE D'ELECTRICITE. Sept. 20, 1946, No. 28295. Convention date, Oct. 30, 1945. [Classes 37 and 41] In the manufacture of electrolytic condensers, the anode before being immersed in an electrolytic forming-bath is subjected to an electrolytic polishing operation. In electrolytic polishing of aluminium an electrolyte is used consisting of acetic anhydride and an aqueous solution of perchloric acid. In the Specification as open to inspection under Sect. 91 the polishing was not limited to electrolytic polishing.
Patent GB-1474782-A (GB)
Title: Multi-colour radiographs
IPC: G03C5/16
Filed: 1974-06-26
Abstract: 1474782 Multi-colour radiographs FILMFABRIK WOLFEN VEB 26 June 1974 [26 June 1973] 28341/74 Heading G2C A radiographic process comprises exposing to radiation, either directly or indirectly, a radiographic material comprising at least two silver halide emulsion layers, of differing speeds, each containing an azo dyestuff that is bleachable in the silver-dye-bleach process and that does not absorb radiation in the spectral range used for the exposure, and wherein each azo dyestuff has a spectral obsorption differing from that of each other azo dyestuff by at least 50nm and subsequently black and white developing and silver dye bleaching, the development conditions being chosen such that a gradation of at least 2À5 is obtained for each coloured component image. Each silver halide emulsion may be a silver bromide-silver iodide emulsion. The emulsion layers may be on opposite sides of a support (see Ex I ) or on the same side and separated by a gelatin layer (see Ex 2). One silver halide emulsion layer may contain an azo dyestuff having a high absorption in the range 600-700nm and no absorption in the range 400-500nm, and a second silver halide emulsion layer may contain an azo dyestuff having a high absorption in the range 500-590nm and no absorption in the range of 400-480nm. The silver halide emulsion layers may differ in speed by 0À3-1À5 stops as measured at density 1À0. The layer of lower speed may have a gradation greater than 4À0.
Patent GB-689689-A (GB)
Title: Improvements in or relating to harpoon guns
Inventor: ROGERS HENRY STUART
IPC: F42B30/14
Filed: 1949-11-07
Abstract: 689,689. Line-throwing apparatus; harpoon guns. WESTLEY RICHARDS & CO., Ltd. Nov. 1, 1950 [Nov. 7, 1949; May 12, 1950], Nos. 28410/49 and 11879/50. Classes 9(ii) and 77 A harpoon gun comprises a barrel terminating in a spigot adapted to receive a tube forming the rear end of a harpoon which is propelled by the firing of a cartridge fitted to the front end of.the spigot. As shown the axially bored gun barrel 10 is formed with a recess 11 in its forward end for the reception of an axially bored spigot 12 which is securely fitted in the recess by set-pins 14. The bore 15 of the spigot is screw-threaded to receive a stop-like piece 16 the head 17 of which is similarly threaded to engage with a complementary thread in tne rear end of a steel sleeve in which a propelling cartridge is mounted. Firing of the cartridge is effected bv means of the reduced end 19 of a pin 18 which is attached to a tube 21 slidable longitudinally within the barrel bore. A collar 20 on the pin 18 limits the axially movement of the firing means. The tube 21 extends through the bores in the spigot and barrel and through a breech block 24 which is mounted on the end of the latter and is secured in position bv set-pins 25. The barrel bore adjacent the block 24 is enlarged to provide accommodation for a collar 26 on the tube 21 and a spring 27 arranged .between the collar and a disc 28 abutting the forward end of the block. The tube 21 carries a bent 30 which co-operates with a spring- loaded sear 32 operated by the trigger 36. The rear end of the tube 21 extends through a bush 38 and a disc 39, the latter forming an abutment for a stop collar 40 on the forward end of a sleeve 41 screwed to the tube. A handle 43 is provided for retracting the tube 21 and pin 18 against the spring 27 to cock the firing mechanism. A safety catch is provided by a pivoted bar 44 which is adapted to engage between the disc 39 and collar 40. The gun is pivotally mounted for angular movement about axes in both the horizontal and vertical planes. For manipulating the gun a lever handle 50 is secured to the rear end of a plate 51 which is in sliding engagement with longitudinal V guides 52 on the bottom of the barrel so that it may be adjusted axially to balance the gun, the plate being locked in the adjusted position by set-pins 53. A sight bar 54 adjusted at its rear end is provided' whilst the gunner is protected from flash by a shield 61.
Patent GB-1335314-A (GB)
Title: Means for synchronizing a speed-following machine in relation  to a speed-setting machine
IPC: F15B9/14
Filed: 1971-06-17
Abstract: 1335314 Hydraulic transmisssion of power A H LILJEQVIST and F LIEDHOLM 17 June 1971 [13 July 1970] 28428/71 Heading F2D A speed following machine 11, driven by an hydraulic motor 12, is synchronized with a speed setting machine 10 by means of a governing valve fitted into the supply and return conduits to a pump 14 having a constant pressure output which supplies the motor 12, the valve having a rotatable sleeve driven by one machine, the speed following machine in the embodiment shown, and a valve body 23 driven by the other machine, lands 24 and 25 on the body co-operating with the inlet 19 for fluid from the pump and the outlet 21 to a reservoir 13, a decrease in speed of the speed setting machine reducing the size of the openings 19 and 21 and slowing the speed following machine and similarly an increase in the speed setting machine speed increasing the speed of the speed following machine. The flow and return from the pump 14 also pass through a solenoid valve 34 controlled by a switch 31 having a part with a contact 32 driven by the speed setting machine 10 and a part with a contact 31 driven by the speed following machine, the solenoid valve being closed when the contacts are separated, this stopping the speed following machine. An additional feature is that land 25 is larger than land 24 so that the return from the motor is cut off before the supply, the resultant back pressure aiding stability of operation of the machine 11. A further embodiment has a governing valve inserted only in the return from the motor, and having one inlet and one outlet only in the sleeve, and a valve body with a passage through it to control the flow, the body and sleeve being rotated as in the embodiment shown.
Patent GB-851710-A (GB)
Title: Improvements in shearing devices, for breeze and like blocks
IPC: B28D1/22
Filed: 1956-09-18
Abstract: 851,710. Cutting stone. TAYLOR, H. L. Sept. 16, 1957 [Sept. 18, 1956], No. 28454/56. Class 124. A device for cutting breeze and like blocks comprises a support for one side of the block, a blade having a series of saw-like teeth engaging the opposite side of the block, and hydraulic means for causing rleative movement of the support and blade towards and away from one another. As shown, a breeze block may be placed on a support 17 movable by a hydraulic ram 22, and a blade 29 having teeth 33 may be adjustably held in supports 14 above the block. The hydraulic ram may then be operated to move the block into contact with the blade and cut it. The support 17 may carry a blade 19 having teeth 33 lying in the same plane as the teeth 34 and slightly offset so that the two sets of teeth intermesh. Two springs 25, 26 return the support 17 to its original position on the release of hydraulic pressure.
Patent GB-1145497-A (GB)
Title: Improvements in collapsible tubes
Inventor: PAYNE JOHN WILLIAM
IPC: B65D35/12
Filed: 1965-07-06
Abstract: 1,145,497. Collapsible tubes. BETTS & CO. Ltd. 6 July, 1966 [6 July, 1965], No. 28512/65. Addition to 1,045.251. Heading B8D. A collapsible tube of metal, having a nozzle 3 is provided with a resilient sleeve of plastics material snap-fitted over the nozzle by means of an annular groove 12 on the interior of the sleeve which engages over an annular flange 7 on the nozzle. The flange is frusto-conical in cross-section, thereby providing edges 8, 9 which make line contact with the groove which is of V-shaped cross-section. The nozzle exterior has axial splines 5 which engage axial grooves 11 on the interior of the sleeve to prevent the sleeve from rotating. The groove 12 may be in the nozzle and the flange 7 on the sleeve.
Patent GB-1201296-A (GB)
Title: Keyboard for typewriters, computer terminals and the like
IPC: B41J5/12
Filed: 1969-06-05
Abstract: 1,201,296. Keyboards for typewriters and the like. INTERNATIONAL BUSINESS MACHINES CORP. 5 June, 1969 [10 June, 1968], No. 28616/69. Heading B6F. A keyboard comprises means to readily change the symbol markings on all the keys and consists of transparent key face portions 26 and a series of deformable plastic layers 10, 11, 12 and 13 which carry the markings and which can be selectively illuminated. Alternatively a series of discs (45, 47, 49, 50, Fig. 4, not shown) in the key may be selectively illuminated. As shown in Fig. 1 the layers are formed of acrylic plastic and the selected layer is illuminated by a lamp through a slit 18 in a housing which can be vertically adjusted by rack 21, pinion 23, detent 24 and control arm 25. The key-caps may have a magnifying or prism top and the layers 10 &c., or discs 45 &c. may be coloured.
Patent GB-451764-A (GB)
Title: Improvements in apparatus for lifting and turning motor vehicles
IPC: B60S9/14
Filed: 1934-11-05
Abstract: 451,764. Apparatus for lifting and turning motor vehicles. OLIPHANT, F. J. K. B., The Haven, Houghton, Huntingdon. Nov. 5, 1934, No. 28523. [Class 79 (iii)] Means for lifting and turning a motor vehicle comprises a screw-shaft C located at about the centre of gravity and threaded through a stout steel plate A which, together with a reinforcing plate B, is secured under the floor of the vehicle. Rigidly secured to the shaft C are a ground engaging plate E with hinged flaps and a flywheel D. The flywheel is stated to be driven, when required, from the vehicle engine, under the control of the driver. The plate E is normally maintained clear of the ground, being lowered as shown when the flywheel is rotated, the vehicle turning on the screw when the plate E engages the ground.
Patent GB-483568-A (GB)
Title: Improvements in or relating to trays, salvers and the like
IPC: A47G23/06
Filed: 1936-10-20
Abstract: 483,568. Trays. GILL, R. S. Oct. 20, 1936, No. 28529. [Class 128] A device positioned on the underside of a tray for facilitating carrying thereof comprises a frame or plate 2 having mounted thereon a hand-receiving holder 10, the frame being secured to the edge of the tray by rods 3. The rods may be rigid, or, as shown, spring rods adjustable in holes 5 in the frame and having rubber sleeves 7 which prevent chafing of the tray corners. The rods 3 terminate in hooks 6 also having rubber sleeves. The holder 10 may be of flexible material; it may be fixed to the frame by studs, or its effective length may be varied by transferring one retaining pin 14 from one loop 11 to another. According to the Provisional Specification a holder may be in the form of a glove or of a strip of puckered canvas providing separate loops for fingers and thumb.
Patent GB-815890-A (GB)
Title: Cyano aldehydes
IPC: C07C255/56
Filed: 1957-09-10
Abstract: The invention comprises cyanoaldehydes of the formula <FORM:0815890/IV (b)/1> (wherein X represents a sulphur atom or a -CH=CH- group and Y is a hydrogen or halogen atom) and their preparation by refluxing 4-cyanobenzaldehyde or 5-cyano-2-formylthiophene with a large excess of acetaldehyde in an alkaline medium in the presence of acetic anhydride and, if desired, reacting the resulting 4-cyano-cinnamaldehyde or 5-cyano-2-thienylacrolein with one mol. of a halogen and reacting the dihalo-derivative so formed with one equivalent of an alkali metal carbonate (preferably sodium carbonate).  In examples, 5-cyano-2-formylthiophene is refluxed with acetaldehyde and acetic anhydride in the presence of methanolic potassium hydroxide, and the resulting b -(5-cyano-2-thienyl) acrolein is brominated with liquid bromine in glacial acetic acid, then mono-dehydrobrominated with potassium carbonate to give a -bromo-b -(5-cyano-2-thienyl) acrolein; 4-cyanocinnamaldehyde is prepared in an analogous manner from 4-cyanobenzaldehyde, and similarly converted into a -bromo-4-cyanocinnamaldehyde by bromination and subsequent mono-dehydrobromination.  5-Cyano-2-methylthiophene, prepared by refluxing 5-iodo-2-methylthiophene with cuprous cyanide in anhydrous pyridine, is oxidized with chromic acid in acetic acid-acetic anhydride to 5-cyano-2-diacetoxymethylthiophene, which on hydrolysis with sulphuric acid in aqueous ethanol yields 5-cyano-2-formylthiophene.
Patent GB-756688-A (GB)
Title: Tuberculostatic agent and process for producing the same
IPC: C07D213/86
Filed: 1953-10-16
Abstract: A tuberculostatic agent is obtained by reacting a soluble hydrazone of isonicotinic acid hydrazide with formaldehyde, preferably in aqueous solution at temperatures of up to about 100 DEG  C.  The specified hydrazone is isopropylidene isonicotinic acid hydrazide. The constitution of the product is undetermined.
Patent GB-1249369-A (GB)
Title: N-aryl ureas and their use as herbicides
Inventor: KLAUKE ERICH
IPC: A01N47/30
Filed: 1969-06-06
Abstract: 1,249,369. Herbicides containing N-aryl ureas. FARBENFABRIKEN BAYER A.G. 6 June, 1969 [10 June, 1968; 16 Oct., 1968], No. 28713/69. Heading A5B. [Also in Division C2] Herbicidal compositions comprise as active ingredient an N-aryl urea of the formula: in which X 1  and X 2  are difluoromethyl, chlorine or hydrogen, but both are not difluoromethyl simultaneously, R 1  is hydrogen, alkyl with 1 to 4 carbon atoms or alkenyl with 3 or 4 carbon atoms, and R 2  is alkyl with 1 to 4 carbon atoms or alkenyl with 3 or 4 carbon atoms, together with a solid diluent or carrier or in admixture with a liquid diluent or carrier containing a surface active agent.