baber/WOPTO huggingface dataset:
Patent GB-204072-A (GB)
Title: Improvements in or relating to electric lamps more especially for road vehicles
IPC: F21V17/00
Filed: 1922-03-22
Abstract: 204,072. Sandbrook, A. A. March 22, 1922. Lanterns, glazing.- Glass or mica windows B are secured to the resilient body of an electric lamp by means of metal beading I as shown in Fig. 3, or alternatively the body may be thickened along the edge of the aperture and provided with a groove into which the glass is pressed.
Patent GB-1507091-A (GB)
Title: Schottky-gate field-effect transistors
IPC: H01L21/338
Filed: 1975-03-11
Abstract: 1507091 Schottky gate FET SIEMENS AG 11 March 1975 [29 March 1974] 8396/75 Heading H1K A Schottky gate FET comprises an N- or P- type Si body 2 on an insulating substrate 1, a PN junction within the body 2 parallel to the substrate producing a space charge zone adjacent the substrate to narrow the active region below the Schottky gate electrode 5. In one embodiment, as shown, the Si body is N-type and a P-type zone 21 is formed during epitaxial growth, by ion implantation or by the influence of interface states on the substrate surface. The body 2 may be 1Á thick and the space charge 22 may narrow the active N region 20 to about 0À2 Á. The substrate 1 is of spinel or sapphire. In another arrangement, the substrate surface is given a negative charge (10) (Fig. 2, not shown) to induce a P conductive region (210) in the adjacent Si body. After deposition of the electrodes, e.g. of Al, PtSi or Hf, to effect masking, further ion implantation is carried out to produce more strongly doped regions within the active transistor region. The insulating substrate may support several such transistors connected by metal tracks. Two transistors of opposite type may be connected to form an inverter circuit (Fig. 4, not shown).
Patent GB-1021402-A (GB)
Title: Novel antibiotics and processes for their manufacture
IPC: A61K36/06
Filed: 1962-10-16
Abstract: Antibiotic R-451 or a component thereof is produced by incubating a micro-organism of the species Micromonospora carbonacea nov. sp. or an R-451-producing mutant or variant thereof, particularly M. carbonacea NRRL 2972 or M. carbonacea var. aurantiaca NRRL 2997, until a compound having substantial antibiotic activity is produced and isolating an antibiotic thus produced, e.g. by extraction with a water-immiscible solvent and isolation of the antibiotic from the extract by adsorption, partition, fractional precipitation or a combination of these methods.  R-451 may be resolved into components R-451 A, R-451 B, R-451 C, R-451 D and R-451 E.  Infra-red spectra are given for R-451, R-451 A, R-451 B, R-451 D and R-451 E and ultra-violet spectra for R-451, R-451 D and R-451 E.  Other properties are described, including the elementary analyses for R-451 D and R-451 E viz. R-451 D, C 52.02%, H 6.81%, N 0.72%, Cl 5.04% and R-451 E: C 65.17%, H 7.54%, N 1.31%, 0 24.23%.ALSO:Pharmaceutical compositions comprise a pharmaceutical carrier and antibiotic R-451 or one of its components R-451A, R-451B, R-451C, R-451D or R-451E. Examples describe an injectable solution, a topical ointment and ophthalmic drops containing R-451D, the opthalmic drops containing also phenethyl alcohol.
Patent GB-502768-A (GB)
Title: Improvements in and relating to ventilator-fan mountings
IPC: F04D29/64
Filed: 1938-03-18
Abstract: 502,768. Screw faas. WEBER, M. March 18, 1938, No. 8442. Convention date, March 22, 1937. [Class 110 (i)] Ventilator fans, consisting of a fan wheel 8 enclosed within a guard 9 combined with a driving motor 7 and supported by a bracket 10, have a support comprising a U-shaped member 36 with its end parts extending around and pivotally secured to the guard to permit tilting and its centre mounted rotatably on a base 35. The motor is clamped by a split ring 29 forming part of the guard, which consists of front rings 27, a centre ring 26 and rear rings 28 with connectors 30.. 32. Diametric wires 34 are welded to the rings 26, 27 and are received in notches 57 in blocks 53 pivoted to member 36. The blocks 53 carry rubbing contacts soldered to the motor leads 13a, 14a and to leads carried within member 36 which consists of facing channelmembers 36a, 36b. Specification 411,327 is referred to.
Patent GB-195401-A (GB)
Title: Improvements in clamping devices for detachable portions of tables or the like
IPC: F16B12/32
Filed: 1923-03-26
Abstract: 195,401. La Point, F., and Thurm, F. H. March 25, 1922, [Convention date]. Stud-and-slot fastenings.-A clamping-device for holding in position detachable shafts of tables &c. consists of a recessed shaft 10 mounted between flanges 4 depending from a table plate 3 and normally engaging below a lug 9 in a cap 7 secured to the pedestal 1. A rib 6 of the cap 7 parallel with the shaft 10 normally engages a corresponding slot in the plate 3. On turning the. shaft 10 the parts 1, 2 can be separated. Fig. 1 shows a similar device applied to a detachable leg 17. The shaft 10 has a lever arm 12 attached to it which is normally engaged by a spring hook bolt 13.
Patent GB-277875-A (GB)
Title: Improvements in and relating to valves for internal combustion engines
IPC: F01L3/06
Filed: 1927-03-28
Abstract: 277,875. Ricardo, H. R. March 28, 1927. Cylinders receiving liquid fuel.-In order to give a whirling motion to the air entering the cylinder, the air inlet valve 2, in addition to being arranged eccentrically in the cylinder head and supplied by a passage 3 tangential to the whirl path, is provided with a seating which is cut away, as indicated at 1<c>, at the side towards which the turbulent flow is desired. The other side of the seating is masked as shown at 1<b>, and this masking may extend halfway round the seating and then merge into the cut-away portion. In a modification, the valve axis is slightly inclined, and the. correspondingly inclined valve seating is masked at the higher side, and at the opposite side merges into the under surface of the cylinder head.
Patent GB-1169799-A (GB)
Title: Improvements in or relating to Clamping Bolt Assemblies
Inventor: GRENDELMEIER WERNER
IPC: F16B13/06
Filed: 1967-02-23
Abstract: 1,169,799. Castors. A. SCHNETZLER. 23 Feb., 1967, No. 8595/67. Heading A4U. [Also in Division F2] A castor assembly comprises a sleeve 17 which is held by the head 16 of a bolt 1 in abutment with a leg of furniture and a wheel support 21 swivellably mounted on the sleeve 17, the wheel support 21 being provided with a portion 20 sandwiched between two sets of balls 23 running in upper and lower ball races 18, 19 of the sleeve 17. The castor assembly is secured to a leg of furniture by a clamping bolt assembly (see Division F2)
Patent GB-526502-A (GB)
Title: Improvements relating to trigger mechanism for use more particularly with air rifles, air pistols and similar pneumatic weapons
IPC: F41B11/00
Filed: 1939-03-18
Abstract: 526,502. Pneumatic guns. WEBLEY & SCOTT, Ltd., and SMALLWOOD, H. W. March 18, 1939, No. 8644. [Class 119] In a trigger mechanism for use more particularly with air rifles, air pistols and similar pneumatic weapons, a rod 3 adapted to be cocked by a lever 2a is held against the action of the main spring 2 by a sear 5 engaging the rod at 5a and having a nose 5d riding within a slot 3b in the rod. The sear 5 is held in the position shown by means of a second sear 7 under the action of a leaf spring 9 until released by the action of the trigger 8.
Patent GB-230293-A (GB)
Title: Improvements in the process of manufacturing decolorising carbon and apparatus therefor
IPC: C01B32/336
Filed: 1924-04-05
Abstract: 230,293. Sauer, J. N. A. April 5, 1924. Carbon.-Decolorizing carbon is made from carbonaceous material in a vertical retort by the action of heat and of activating gas or vapour passing through the carbonaceous material transversely of the retort chamber. The cylindrical retort has an annular chamber comprising zones 1, 2, 3 which receive a charge from a hopper 4, zone 1 being a distilling zone, zone 2 an activating zone, and zone 3 a cooling zone. The material travels through these zones into a valve box 5 having a valve or sluice controlled by a handwheel 6 to drop the finished carbon at intervals into a receptacle; alternatively, a continuously discharging automatic rotating valve may be provided. A water seal 7 between the box 5 and the receptacle prevents access of air. The central duct 8 is supplied through three inlets with combustible gas from a pipe 17, air preheated in a channel 13, and steam superheated in a channel 15. These gases pass through channels 9 in the annular retort chamber and transversely through the charge. The reaction gases pass through the ports 10 into the chamber 11 in which they are burned with air entering through the ports 12. The products of combustion from the annular chamber 11 flow upwards into an extension of that chamber in which there are baffles 20 having apertures 21 whereby the gases are caused to flow round the outer wall of the distilling zone 1. The gases then pass inwards through ports 22 to the zone 1, where they pass transversely through the fresh material and enter a central duct 23 through ports 24. The duct 23 communicates at the top with a discharge pipe which passes through the hopper 4. Examples of carbonaceous materials that may be used are wood, peat. anthracite, cannel coal, brown coal. leather, charcoal, and coke. Examples of activating gases and vapours that may be used are steam, air, carbon dioxide, carbon monoxide, hydrogen, generator gases, ammonia, chlorine, and vaporized chlorides.
Patent GB-232204-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B13/02
Filed: 1925-04-01
Abstract: 232,204. Kodak, Ltd., (Assignees of Tessier, J.). April 9, 1924, [Convention date]. Finders ; lens fittings.-In a camera wherein a device, such as a colour screen, portrait attachment, or apertured diaphragm is provided for modifying the light passing through the objective, the device is mounted on a lever carrying at its other end a signal which is visible in the view finder when the device is adjusted over the objective. As shown, a lever 19 pivoted at 18 in a casing 14 attached to the front of the camera carries at one end the device E<c> for modifying the light, and at the other end an indicator, such as a coloured screen Er adapted to rest in front of the finder aperture 26 when the lever 19 is swung over, by means of a handle projecting forwards from its pivot, so that the device E<c> rests in front of the objective aperture 27. A spring 23 retains the lever in the operative or inoperative position. The finder comprises a positive lens 4 on the camera front, an inclined mirror 5, and a viewing lens 6 in a recessed opening in the camera top.
Patent GB-766064-A (GB)
Title: Improvements in electron discharge tubes
Inventor: BARRINGTON ALFRED ERIC
IPC: H01J23/05
Filed: 1953-03-30
Abstract: 766,064. Thermionic valves. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 29, 1954 [March 30, 1953; March 30, 1953; May 24, 1954], Nos. 8686/53, 8688/53 and 15237/54. Drawings to Specification. Class 39(1). [Also in Group XL(c)] A thermionic valve cathode is heated by ion bombardment in normal operation or during degassing or processing; gas is released by heating an occluder substance and subsequently reabsorbed by allowing the occluder to cool. The ions are directed on to the cathode by an applied electric field. An occluder of hydrogen consists of an indirectly heated nickel gauze cylinder coated with a suspension of zirconium or zirconium hydride, titanium or titanium hydride, or thorium. The hydrogen pressure is of the order of 10-<4> to 10-<2> mm. of mercury. A rare gas may be used. In a magnetron initial ion bombardment is followed by electron back bombardment. A steady field maintains continuous electron back bombardment in pulsed working. A circuit for stabilizing the magnets on current is described (see Group XL(c)). Details are given of the preparation and activation of a pellet of zirconium or zirconium hydride.
Patent GB-579837-A (GB)
Title: Improvements in or relating to devices for facilitating the drawing of spaced lines
IPC: B43L13/02
Filed: 1944-05-09
Abstract: 579,837. Rulers. WRIGHT, J. May 9, 1944, No. 8758. [Class 97 (iii) A line-spacing device for attachment to rulers &c. has a twopart clamp to grip the ruler 12, one part 5 of the clamp having a channel 4 at each side in which the index slide 1 and the other clamp part 6 are mounted.
Patent GB-759204-A (GB)
Title: Improvements relating to cover safety devices for electrical equipment
Inventor: NICHOLSON NORMAN
IPC: H01H9/22
Filed: 1954-03-25
Abstract: 759,204. Switch cases. BRITISH THOMSON-HOUSTON CO., Ltd. March 25, 1955 [March 25, 1954], No. 8801/54. Class 38(5) A safety arrangement for electric apparatus comprises a switch arranged to interrupt the supply to the apparatus when the apparatus cover is removed, the switch being manually closable after the cover has been removed, and a retaining member, which can then be manually operated to hold the switch closed, being released on replacement of the cover, whilst the switch is maintaiend closed. The switch comprises a rod 1 carrying a disc 6 normally held in bridging engagement with contacts 4, 5 by the engagement of the cover 12 with the end 11 of the rod 1. A plunger 7 can be depressed to engage a part 8 thereon with a part 9 on the rod 1 when the latter has been manually depressed. When the cover is replaced the rod 1 is pushed in further to disengage parts 8, 9 and the plunger 7 is returned by a spring 13.
Patent GB-168345-A (GB)
Title: Improvements in and relating to locomotives
IPC: B61C7/00
Filed: 1920-03-25
Abstract: 168,345. Still, W. J. March 25, 1920. Link-motions and linkage-gear.-A locomotive is driven by means of an internal-combustion engine 3, which may be arranged to work partly under steam generated wholly or in part from the waste heat of the exhaust gases in a generator 24, the steam being admitted at the back of each engine piston by a piston valve connected by a rod 20 to the lever 19 of the valve-gear. The steam may be generated initially or for overload purposes by means of oil burners or other separate heating means. The valve-gear 15, 19 is actuated by eccentrics 14, levers 16, reversing handle 17, and drag links 18.
Patent GB-109596-A (GB)
Title: Improvements in Apparatus for Hardening Metal Articles.
Inventor: RENAULT LOUIS
IPC: C21D9/00
Filed: 1917-06-20
Abstract: 109,596. Renault, L. Sept. 13, 1916, [Convention date]. Hardening.-An apparatus for use in hardening steel shells and similar articles of regular shape comprises an oscillating tank I, a vertically movable funnel F and pipe E, and a holder B to receive a shell A or other article during the hardening process; the apparatus is so arranged that the volume of hardening liquid diminishes as the hardening process approaches completion. The shell A is placed upright in the holder and enveloped by the lower end of the tube E, as this is moved downwards against the pull of a counterweight G; the interior of the holder has helical threads B<2> by means of which the holder and shell are rotated as the cooling liquid streams along the walls of the shell from the pipe E. A perforated pipe C delivers hardening liquid from a tube D into the interior of the shell. The tank 1 is pivoted about an axis J and so counterweighted by a weight K that the tank remains in a horizontal position when it is empty and when it is full. When a shell has 'been placed in the holder, the tube E with its funnel F is lowered and a finger T on the funnel strikes a finger S on the tank which then tilts up and discharges its hardening liquid along the tube and over the shell; after the finger T has passed out of contact with the finger S, the tank rises into its horizontal position, and, when the tube is raised to allow the shell to be replaced by another, the finger T, which is spring-controlled, passes above the finger S. The tank is re-filled from a pipe L which may be provided with a sluicevalve M operated by a counterweighted lever N; this lever is actuated by any suitable means such as an electro-magnet 0 put into or out of action by means of a float Q in a tube R fitted in the tank; the tube, except its lower part, is perforated, and the range of motion of the float is small. Tilting of the tank before it has been filled is prevented by a pawl Y adapted to engage with a catch on the tube E and carried by a lever Z connected to the counterweight P of the electromagnet 0. In a modification of the tank mechanism, a spring catch engages with one or two notches in a segment on the tank; by this means, the tank is held during filling, and, when full, is steadied when it commences to discharge the hardening-liquid.
Patent GB-250265-A (GB)
Title: Improvement in synthetic resins and their manufacture
Filed: 1926-04-01
Abstract: 250,265. Commercial Solvents Corporation, (Assignees of Littmann, E. R., Brown, B. K. and Bannister, W. J). April 1, 1925, [Convention date]. Monoalkyl esters of phthalic acid are made by heating phthalic acid with an alkylating agent, e.g. an alcohol, in molecular proportions. The products are purified by dissolving in sodium carbonate solution, extracting with ether any dialkyl phthalate formed, and precipitating the monoalkyl ester by acidifying the aqueous solution. The polyvalent metallic salts of the esters are used as synthetic resins or gums, the salts of the monobutyl ester being particularly suitable.
Patent GB-540041-A (GB)
Title: Improvements in transmitting mechanism for aircraft control surfaces
IPC: B64C9/22
Filed: 1940-02-28
Abstract: 540,041. Rack and pinion jacks. TAMPIER, R. J. C. Feb. 28, 1940, No. 9106/41. Divided out of 539,117. Drawings to Specification. [Class 78 (iii)] [Also in Group XXXIII] Mechanism for operating movable surfaces of aircraft comprises rack and pinion mechanism on which the surface is carried so as to be movable to and fro relative to a wing, and each movable surface is connected to the rack by controllable hinge mechanism operated by two additional rack and pinion mechanisms connected respectively to the hinge mechanism and to a control in the cockpit, the pinions of these two mechanisms being provided with inter-engaging clutch elements whereby they can be coupled together to transmit the drive from one rack to the other rack. One of these pinions has clutch elements on both sides to enable it to be coupled alternatively to the pinion of the first-mentioned rack mechanism so as to be driven by it. The description is identical with that in Specification 539,117. Specifications 496,875 and 499,503, [both in Group XXXIII], also are referred to.
Patent GB-1460523-A (GB)
Title: Device for detecting carbon in cigarette filter tips
IPC: G01N21/94
Filed: 1974-02-28
Abstract: 1460523 Testing filter tips photo-electrically LIGGETT & MYERS Inc 28 Feb 1974 [8 March 1973] 9161/74 Heading G1A Dark spots or patches on the end of a cigarette filter tip, e.g. due to leakage of carbon from within the filter, are detected by measuring the amount of light reflected from the end of the tip. The dark spots cause only a small departure from the normal amount of reflected light, and the latter is liable to change with time e.g. due to light source changes or changes of filter material. To overcome this the amount of light from normal cigarettes in a stream is continuously measured and stored as a floating reference, and any cigarette which reflects less than the value of this reference is rejected. Optical arrangement: Fig. 1 shows a filter tip 16 of a cigarette 14 moving through a cigarette making machine. The tip is illuminated on top by lamps 12a, 12d, from below by lamp 12c, and on its end by lamp 12b; the lamp positions can also be seen in Fig. 2, (not shown). Lamp 12c illuminates a screen 21a so that detectors 10 receive at least as much light when no tip is present as they do when a perfect tip is present to avoid triggering the apparatus between cigarettes. The lamps are individually adjustable to assist this. The detector 10 comprises three phototransistors, each viewing one third of the tip end as the cigarette moves through the machine. Circuitry: Each detector transistor 10 is connected to a respective circuit as shown in Fig. 5. The circuit comprises preamplifier 43, amplifier/ filters 40, 41, and a reference detector 38. The transistor 10 produces a pulse every time a tip passes; this pulse is amplified and filtered to favour higher frequency components so that small spots and large spots may be equally well detected, and is also inverted. As a result squarewaves are fed to the reference circuit 38, a perfect cigarette producing a standard maximum amplitude which is stored in capacitor 48 (minus the drop across diode 46). After a few perfect tips have passed, the capacitor becomes fully charged to this amplitude, and then normally no voltage occurs across resistor 52. If a tip reflects less lgiht, due to a dark spot, the pulse amplitude for that tip will have a spike which increases the capacitor charge and produces a pulse across resistor resistor 52. This resistor is common to the circuitry for all three detectors, Figs. 10, 11 (not shown), and drives a monostable multivibrator via a pre-set level control. As a result, if a tip reflection falls below a pre-set level the multivibrator output causes the cigarette to be. rejected. The diode 46 in the reference circuit is bypassed with a large resistor 50 so that gradual falls in the standard maximum level produced by a perfect tip, such as occur due to lamp ageing, can be followed.
Patent GB-208070-A (GB)
Title: An improved container for advertising and displaying goods
IPC: B65D5/52
Filed: 1923-04-04
Abstract: 208,070. O'Brien, F. M., and Kolok Manufacturing Co., Ltd. April 4,1923. Fittings, external; boxes combined with supports.- A box for displaying typewriter ribbons &c. is provided with a strut e, the foot f of which can be pushed into the bottom of the box. The strut e, which, when extended, forms a stand for the box is attached to the back of the box. The upper portion of the front of the box is covered by an advertisement &c.
Patent GB-994092-A (GB)
Title: Tiled panels
Inventor: SHORE JOHN WALTER
IPC: B29C65/00
Filed: 1963-03-08
Abstract: 994,092. Laminates. CARTER TILES Ltd. March 6, 1964 [March 8, 1963], No. 9261/63. Heading B5N. [Also in Division E1] A tiled panel comprises tile assemblies 1, Fig. 4, bonded to glass fibre fabric backings 2, e.g. by polyester resin, and secured to a central core 3 which may be a paper honeycomb or an assembly of cardboard cylinders with their axes normal to the faces of the panel. The edges of the core may be closed by a strip 4 of resinbonded glass fibre fabric, and the panel may be secured to a wall or other support as by brackets 10 bonded into a bore in the core with a glass fibre-polyester resin mixture and having a forked end 8 cemented into a cavity in the wall. The panel is made by assembling tiles face-downward in a frame, securing them together with adhesive tape which connects their edges and prevents seeping of resin, coating them with polyester resin, laying on glass fibre fabric impregnated with resin, laying on the core, and hardening the resin, the so-made assembly then being laid on a similarly prepared tile-andbacking assembly having unhardened resin and the whole placed under pressure during the final hardening stage.