baber/WOPTO huggingface dataset:
Patent GB-508244-A (GB)
Title: Improvements in electric insulators
IPC: H01B17/12
Filed: 1938-03-12
Abstract: 508,244. Insulators. MICANITE & INSULATORS CO., Ltd., LONDON PASSENGER TRANSPORT BOARD, and HAEFELY, G. E. March 12, 1938, No. 7756. [Class 36] An insulator, more particularly for use in tension, comprises an elongated metal core recessed near its ends, an insulating covering of natural or synthetic resin or resin-impregnated fabric entering the recesses in the core and itself recessed on its outer surface opposite the core recesses, and metal end pieces enveloping the ends of the insulating covering and entering its recesses so that when the insulator is in tension the insulating material within the recesses is under compression. The arrangement may be such that the insulating material is also under compression when a compressive force is applied to the insulator. In the construction shown in Fig. 1, a metal rod 1, having screw-threaded ends and formed adjacent its ends with necks 2, has applied over it insulating tubes 3, 4 of wound paper, textile, or asbestos fabric impregnated with resin, the inner tube being held between nuts 5 screwed on the end of the rod and the nuts being enclosed by insulating plugs 6 inserted in the ends of the tub 4 which is of longer length than the rod. The body thus formed is compressed in a heated mould to consolidate the impregnated fabric and force it into the necks of the rod, so that similar necks 7, are formed in the tubes 3, 4. Metal sleeves 8 are then applied to the ends of the body and the inner ends of the sleeves rolled or swaged down into the necks 7. The outer ends of the sleeves are adapted for attachment to external supports and may be flanged, formed with eyes, or, as shown, screwthreaded. Fig. 2 shows a trolley-wire section insulator comprising two insulators 9, constructed as described with reference to Fig. 1, screwed into blocks 10 which are bridged by a runner 11 and to which the adjacent ends of the trolley wire are attached. The insulators may be covered with arc-resisting insulating material. The tubes 3, 4, Fig. 1, may be formed of fabrics known under the Registered Trade Marks " Paxolin " and " Panilax " ; the insulation may, however, be built up of moulded resin instead of from impregnated fabric.
Patent GB-376842-A (GB)
Title: Improved apparatus for aerating liquids
IPC: B01F3/04
Filed: 1931-12-14
Abstract: 376,842. Aerating liquids. GERBER, G., 25, Rue des Chavannes, Neuchatel, Switzerland. Dec. 14, 1931, No. 7834. [Class 14 (i).] Apparatus of the siphon bottle type is adapted for the aerating operation. It comprises a pressure vessel 4 containing the liquid to be aerated and a lower compartment 5 containing an electric heater 6. A gas inlet 14 leads to a submerged nozzle 15 which is surrounded by a flared pipe 19 having apertures at 17, 20, so that liquid is drawn through the apertures and mixed with the gas. The vessel 4 is filled through a handhole 8 fitted with a cover 7. The apparatus discharges by way of a siphon tube 10, threeway cock 9, and tap 11. A pressure gauge may be connected to the branch 13.
Patent GB-1299953-A (GB)
Title: Method and apparatus for producing a protective coating on the surface of a manufactured article
Inventor: FRITZSCHE HAROLD LEN
IPC: H01F41/02
Filed: 1970-02-18
Abstract: 1299953 Valves GENERAL ELECTRIC CO 18 Feb 1970 [27 Feb 1969] 7878/70 Heading F2V [Also in Division B2] A valve assembly 80 comprises a rotatable plate 260 secured to a dial plate 170 which plate can rotate relative to a fixed plate 262 to which are coupled conduits 263, 264, 267. Formed in the fixed plate assembly 262 is a relatively short arcuate groove 269 which can communicate with pipe 78a. A long arcuate groove 270 connects a high pressure fluid source 266 to pipes 78, 78a, 78b, 78c. Also formed in the freed plate 262 are two spaced circular grooves 271, 272 each of which is in communication with one of the heat exchanger conduits 267. The plate 260 is formed with four holes communicating with groove 271 and four holes communicating with groove 27 which can be connected together to provide cooling circuits through the heat exchanger 268.
Patent GB-842974-A (GB)
Title: Improvements relating to blow pipes and the like heating torches
Inventor: RTSHAW GRAHAM WILLIAM ROBE
IPC: F23D14/32
Filed: 1956-03-14
Abstract: 842,974. Blowpipe burners. NORTH WESTERN GAS BOARD. April 10, 1957 [March 14, 1956], No. 7948/56. Class 75(1). A blowpipe or the like heating torch comprises a burner head 1 carried by a mixing tube 2 mounted at the outlet of a venturi tube 10 formed in a casting mounted on a recessed block 11 having two bores, the one having a valve 6 in alignment with the venturi tube 10 for feeding thereto through a bushing 4, air under pressure from an air supply inlet 7, the other bore, in communication with a fuel gas source at sub-atmospheric pressure through a valve 12, opening by a bushing 8 into the recess 9 in the block 11 surrounding the entrance to the tube 10 so that the air draws fuel gas from the sub-atmospheric pressure source.
Patent GB-256924-A (GB)
Title: Improvements in or relating to means for anchoring airships
IPC: B64F1/14
Filed: 1926-03-23
Abstract: 256,924. Siemens - Schuckertwerke Ges. Aug. 14, 1925, [Convention date]. Anchoring.-The ship is brought in to a mast 2 on a rotatable hangar 1, and is lowered by the nose to the position shown to enable it to be run into the hangar. The rear of the ship is freed as far as possible from its normal load and is anchored to a cable carrying a number of weights 5 spaced along it. When the hangar is a floating one these weights are designed to float. This arrangement enables the cable to exert a variable pull in accordance with the extent to which the tail is raised or lowered by vertical gusts during landing.
Patent GB-785057-A (GB)
Title: Improvements relating to mounting arrangements for thermostats in ovens or other heated enclosures
Inventor: HICKS ANTHONY MICHAEL
IPC: F24C3/12
Filed: 1955-03-19
Abstract: 785,057. Ovens. SIMPLEX ELECTRIC CO., Ltd. March 19, 1956 [March 19, 1955], No. 8071/55. Class 126 [Also in Group XIII] A cooking stove having a thermostat in an oven wherein the rod and tube or other elongated heat sensitive bi-metal element is mounted in a sleeve of internnal diameter sufficient to accommodate any of different sizes of elements which may, be sealed into the oven wall to project beyond the heat insulation, and closed at its outer end by a bush of a size common to the different thermostats. The rod and tube assembly 10 of the thermostat is mounted in the oven of an electric cooking stove by means of a sleeve 15 passing through the heat insulation of the oven and forming a gas tight seal with the oven walls so that the thermostat head 12 is outside the heat insulation. The sleeve 15 is of such diameter as to accomodate the largest diameter rod and tube assembly to be used and is closed at its outer end by a bush 11 connecting the rod and tube 10 to the head 12. A U-shaped bracket 22 has holes in the limbs of different sizes to accommodate different rod and tube elements 10, the other limb of the bracket forming a guard for the free end of the rod and tube 10. The outer end of the sleeve 15 is supported by a bracket 17 electrically connected to the body of the cooker.
Patent GB-1094307-A (GB)
Title: Improvements in or relating to phase-correction arrangements for colour television signals
IPC: H04N11/14
Filed: 1965-02-25
Abstract: 1,094,307. Colour television; transistor amplifying circuits. SIEMENS A.G. Feb. 25, 1965 [Feb. 26, 1964], No. 8104/65. Headings H4F and H3T. Phase distortion imparted to a colour subcarrier signal as a function of the amplitude of the luminance signal with which it is combined is removed by passing the composite signal through a first, linear channel 24, which delays the signal so as to introduce a predetermined phase shift of the sub-carrier, and then combining it at point 44 with the original subcarrier signal which is passed through a second channel including a non-linear stage 30 which modifies the sub-carrier amplitude as a function of the amplitude of the luminance signal. By appropriate adjustment of the delay of channel 24 and the characteristic of stage 30, the combined sub-carrier at point 44 may be rendered free from phase distortion. In the second channel the composite signal is applied to stage 30 but only the sub-carrier is selected from the output by band-pass filter 39. The channel includes band-stop filters 29 and 40 to remove signal components at one-half and twice the sub-carrier frequency, which are introduced by non-linearity, and a phase-correcting circuit 42, 43. In stage 30, transistor 31 is connected as a common emitter amplifier with a degenerative feedback emitter load formed of a second transistor 34 acting as a constant-current source and an array of diodes 35-38 connected to individually adjustable bias circuits. The diodes become conductive at different levels of the luminance component of the composite signal. The diode biases are adjusted to produce a desired variation in the amplitude of the sub-carrier component with the amplitude arranged to fall to zero at the luminance level where no phase distortion occurs. The circuit illustrated is included in an arrangement, Fig. 2 (not shown), which also includes means for compensating for differential amplitude distortion.
Patent GB-172921-A (GB)
Title: Improvements in or relating to theatre-stages
IPC: E04H3/28
Filed: 1921-03-15
Abstract: 172,921. AndrÚ, H. Dec. 14, 1920, [Convention date]. Theatrical appliances. - Relates to movable stages to facilitate the rapid change of scenery. Fig. 1 shows, in longitudinal section, a stage in accordance with the invention, and Fig. 2 a transverse section. A person in the stalls is indicated at 4, Fig. 1. According to the invention, the scenery is arranged in separate chambers on carriages 12 which are moved successively in front of the proscenium opening 2 on rails and hoists. Lateral compartments 8 and a rear compartment 9 are provided on the stage level. Corresponding compartments 6, 7 and an additional front compartment 5 are provided at a lower level. A carriage 11 from an upper chamber 10 can be brought into position by a hoist 26. The carriages 12 may be raised above the normal stage level or tilted at any desired angle by means of jacks 51, Fig. 4.
Patent GB-1008453-A (GB)
Title: New ªÏ-halogenated ª‡-acetylenic ketones
IPC: C07C49/227
Filed: 1963-02-28
Abstract: The invention comprises o -halogenated a -acetylenic ketones of the general formula <FORM:1008453/C2/1> in which R and R1 each represents a hydrogen atom or an alkyl radical, X is a halogen atom, n is an integer of at least 3, m is an integer lower than 2n.  The compounds are produced by adding a concentrated aqueous alkali metal hypohalite solution gradually to a solution of the compound <FORM:1008453/C2/2> in an organic solvent which is inert under the reaction conditions and in the presence of a water-absorbing agent which is also inert, while continuously bubbling carbon dioxide through the mixture without the application of external heat, the amount of carbon dioxide employed being at least twice the molar equivalent of the alkali metal hypohalite.  The reaction temperature is preferably kept at between 0 DEG  and 25 DEG  C.  The solvent may be a chlorinated lower aliphatic hydrocarbon and the water absorbing agent anhydrous sodium or magnesium sulphate.
Patent GB-618599-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B19/04
Filed: 1946-03-15
Abstract: 618,599. Photographic cameras. KODAK, Ltd. March 15, 1946, No. 8194. Convention date, March 15, 1945. [Class 98 (i)] A photographic camera body comprises a pair of side walls between, which internal partitions and supports are pre-assembled by endwise insertion into grooves in the opposing surfaces of the side walls, the edges of said walls having interfitting engagement with counterpart edges on another pair of wall sections constituting the remaining external walls of the camera. As shown, a roll film camera includes side plates 1, 2 which are beaded at 19 and held in spaced relation by generally U-shaped back and front plates 9, 10, channelled at 20, 21, and which carry grooves 26 ... 28 ; 35 ... 38 ; 41 ... 44 ; and 29, 30, 47 arranged to receive respectively the shutter partition plate 3; upper and lower dark chamber partition plates 5, 6 ; and lower and upper spool chamber partition plates 4, 7, the grooves being deep enough to accommodate some variation in the widths of the partitions. The front plate 10 is apertured at 55 and carries on its rear face a plate having spring fingers which engage the mount of the objective 56, and also carries apertures for field and viewing lenses 59, 61 of a reflex view-finder including an inclined mirror carried by the partition plate 6 and positioned thereon by clamps 46<1>, the angled end 45 of the plate 6 and the flange 23 of the shutter partition plate. The exposure frame is defined by the edges 39, 50 of the partition plates 5, 7, and parallel ribs 49 formed on the side plates 1, 2. To assemble the body, the partition plates are arranged between the side plates with which the channelled front and back plates are then engaged, these plates having hinge and latch elements (Fig. 2, not shown) on their base and upper portions for permitting loading of the camera. The assembled parts are retained in place by a bolt. The film winding knob 95 engages in known manner with a take-up spool supported by trunnions in the chamber 89 and the film is kept taut by spring finger 34 on the partition 4 pressing against the film roll on the supply spool. The back plate 9 is apertured at 93 to allow inspection of the exposure numbers on the backing paper. The shutter release button is indicated at 110 and the trigger is connected to the cover blade of a shutter of the pivoted single exposure-blade type described in Specification 609,868, the cover and exposure blades being spring connected and mounted on opposite sides of the plate 3.
Patent GB-564036-A (GB)
Title: Orthoptic instrument
IPC: A61H5/00
Filed: 1943-05-25
Abstract: 564,036. Eye examining apparatus. WOTTRING INSTRUMENT CO. May 25, 1943, No. 8297. Convention date, May 15, 1942. [Class 97 (i)] [Also in Group VI] In an amblyoscope of the kind comprising a pair of substantially coaxial tubes each having an adjustably mounted lantern slide stereogram or other target at the outer end and an eyepiece at the inner end, the eyepiece being adjustable for interpupillary distance and the tubes being relatively angularly adjustable in a horizontal plane, a mirror is pivoted on a vertical axis in each tube and may be angularly adjusted independently of the angular adjustment of the tubes to simulate lateral movement of the target. As shown, two angled viewing tubes 2, each provided with an eye-lens 5, holders 6 for additional lenses, guideways 10, 11 in housings 8 for stereograms or other target-image holders, colour screens, &c., and a lamp house 7, have mirrors mounted on vertical spindles 86 at the angles thereof, the mirrors being accessible through openings closed by movable covers 88. The tubes are carried by arms 27 releasably clamped on pivots in bushings 36 extending from levers 37 mounted on fixed pivots 38 ; the rear ends of the levers 37 are connected by adjusting means 63 permitting inter-pupillary distance to be set in accordance with indications on a scale 65. The tubes 2 are thus independently rotatable on the bushings 36 towards and from one another through angles indicated on scales 44, and are also rotatable about horizontal axis at the tops of the arms 27 to extents indicated by pointers 32 on scales 30 ; the housings 8 are rotatable on the tubes through angles indicated by scales 24. The mirrors may be rocked singly or simultaneously about their spindles 86 by air pressure produced by oscillation of a diaphragm in a pump chamber 112 by a handle 122, the air currents, through ducts 125, 127 being controlled by a valve 126 to pass to either or both of two cylinders 102 having pistons connected to arms 93 secured to the spindles 86. The arms 93 each carry two blade springs 96 embracing the head of a fixed bolt and the springs return the arms 93 to normal position when operation of the pump is discontinued. The lamp circuits are controlled by a main switch 141, and by rheostats 143, 145 respectively in the two circuits, and illumination may be continuous or flashing ; the circuits are described in detail, and include a commutator causing the lamps to flash simultaneously or alternately, in accordance with its position, when a lever 165 controlling spring contacts is rocked to and fro. A chin rest 70 and brow rest 71 position the head of the patient and are respectively adjustable by a screw 79 and bellcrank lever 75 and by a sleeve 84 and set-screw 85.
Patent GB-964864-A (GB)
Title: Improvements in or relating to electric coils and methods of manufacture thereof
IPC: H01F5/02
Filed: 1963-03-01
Abstract: 964, 864. Winding bobbins. STANDARD TELEPHONES & CABLES Ltd. March 1, 1963 [March 6, 1962], No. 8319/63. Heading D1J. [Also in Division H1] The flanged members 1 are mountable on the spaced apart ends of the axially adjustable spindles 2 and a foil 3 is then wound on to the member 1 to form a tube. Filamentary material in the form of wire may then be wound on to the tube.
Patent GB-1129087-A (GB)
Title: Improvements in or relating to fuel control systems for combustion engines
Inventor: TURNER HORACE GEORGE
IPC: F02D1/00
Filed: 1965-02-26
Abstract: 1,129,087. Fluid-pressure servomotor systems. PLESSEY U.K. Ltd. Feb. 9, 1966 [Feb.26, 1965], No. 8321/65. Heading G3P. A fuel control system for I. C. engines in which fuel is by-passed above predetermined engine speeds comprises, a gear pump 2, 3 driven by engine shaft 4, a by-pass valve 7 comprising a by-pass port 35 controlled by a piston valve 16 carried by a spring loaded diaphragm 18, and a reed-type governor 6 comprising a shaft 8 driven by gear 2 and carrying a leak-valve 12 by means of leak-spring 13. In use, fuel flows from the pump 2, 3 via line 21 and the interior of piston 16 to chamber 19, and thence via line 23 and restriction 24 to chamber 20. The leak-valve 12 controls flow from passages 9,10 in shaft 8, passage 9 communicating with chamber 20 via radial bores 27 in flange 26 and passage 25. To prevent leakage past the flange, coaxial, annular, carbon seals 28, 32 are pressed against each face thereof by springs 30, the chamber 33 between the seals being connected to pump output pressure and the space between the inner seals 33 and the shaft 8 being connected via passage 34 to pump suction pressure. When the speed rises to increase leakage past the valve 12, the pressure in chamber 20 falls and valve 16 is moved to the left against spring 17 to uncover by-pass port 35.
Patent GB-366326-A (GB)
Title: Improvements relating to non-magnetic steels
IPC: C22C38/04
Filed: 1931-03-18
Abstract: A non-magnetic steel alloy contains 16-25 per cent of manganese, 0,1-0,4 per cent of carbon, and up to 1,5 per cent of silicon, with or without up to 5 per cent of one or more other elements such as titanium, chromium, vanadium, and molybdenum.  The alloy may have a wholly or mainly austenitic structure produced by heat-treatment such as quenching from about 1000 DEG  C. or by hot shaping such as casting, rolling, or forging.
Patent GB-1014911-A (GB)
Title: Process for the production of isonitriles
IPC: C07D213/74
Filed: 1963-03-01
Abstract: Isocyanides of the formula R-N­C, in which R is a substituted or unsubstituted alkyl, aryl, aralkyl, alkaryl or heterocyclic radical are made by reacting at - 50 DEG  to + 100 DEG  C., one equivalent of thioformamide R-NH-CHS in an organic solvent, preferably methylene chloride with no added water at the beginning of the reaction, with two or more equivalents of an inorganic or tertiary organic base, preferably an alkali metal alkoxide or hydroxide or triethylamine, and at least half an equivalent of organic or inorganic acylating agent defined as phosgene, phosphorus halides or oxyhalides, aryl sulphonic halides, trifluoroacetic anhydride cyanogen halides cyanuric halides, 2,4-dinitrochlorobenzene, picryl chloride, and N-acetyl-N,N1-dicyclohexyl chloroformamide, especially cyanogen chloride, the molar amount of acylating agent being less than one half the molar amount of base.  If the starting material is optically active, the optical activity will be preserved in the product.  Named starting materials include 1-diethyl-N-thioformyl-glutamate, N-thioformyl-valyl-glycine ethyl ester, N - thioformyl - glycol - a - hydroxy - valeroyl - glycine-t-buty ester, 2,4-dimethoxy-5-chlorothioformanilide. The examples describe, using cyanogen bromide, triethylamine as reagents in methylene chloride, the preparation of phenyl isocyanide, 1-a -isocyano isovaleric acid methyl ester (optically active), a -isocyano-propionyl-sarcosyl-glycine-t-butyl ester. a -Isocyano-isovaleroyl - glycolyl - glycine - t - butyl ester, 2,4-dimethoxy - 5 - chloro - phenyl - isocyanide was obtained using picryl chloride in place of cyanogen bromide.
Patent GB-1525126-A (GB)
Title: Suspension device especially for a ceiling
IPC: F16L3/14
Filed: 1975-10-14
Abstract: 1525126 Suspended ceiling hangers HUNTER DOUGLAS INDUSTRIES BV 14 Oct 1975 [14 Oct 1974] 08346/78 Divided out of 1525125 Heading E1W The subject-matter of this specification is identical with that described in Specification 1525125, but the claims are concerned with the resilient attachment of the hanger to the framing member 13. For Figure see next column
Patent GB-1512464-A (GB)
Title: Air/fuel ratio control system in internal combustion engine
IPC: F02D41/14
Filed: 1976-03-03
Abstract: 1512464 Automatic control of engine exhaust NISSAN MOTOR CO Ltd 3 March 1976 [28 March 1975 (2)] 08457/76 Heading G3R In a system for controlling the air/fuel ratio of a multi-cylinder I.C. engine in response to an exhaust gas sensor by constant frequency operation of an electromagnetic valve 34 in an additional air or fuel supply passage 32, the frequency is chosen so that it is higher than that of a piston when the engine is running within a cruising range of speeds, preferably it is also higher than the piston frequency at maximum speed. The pulses are produced by combining an integrated high/low signal representative of engine exhaust with a sawtooth waveform Fig. 2 (not shown). The object is to prevent any one cylinder always receiving a mixture which is too rich or too lean.
Patent GB-670923-A (GB)
Title: Improvements in or relating to carboxyphenylsilanes
IPC: C07F7/08
Filed: 1950-04-04
Abstract: Silicon-containing polyesters and polyamidel are obtained by reacting di-(carboxyphenyl) dimethyl silanes with polyhydric alcohols and polyfunctional amines respectively, e.g. with ethylene diamine at 100 DEG  C., a viscous materiel is obtained.  A similar material is obtained using ethanolamine.ALSO:The invention comprises organo silicon compounds of the formula (HOOC.C6H4)2Si(CH3) 2.  The compounds may be prepared by the oxidation of a ditolyldimethylsilane or a mixture of the isomeric ditolyldimethylsilanes under conditions whereby the methyl radical of the tolyl group is oxidized to a carboxyl group, e.g. by heating with alkaline potassium permanganate or by air blowing it at elevated temperatures in the presence of a metal oxide catalyst; manganese dioxide and chromium oxide are given as suitable metal oxide catalysts.  An alternative method of preparation is by carbonating the Grignard reagent of a di-(bromophenyl) dimethylsilane or a mixture of such silanes.  In the example, di-(p-carboxyphenyl) dimethylsilane is prepared from the corresponding p-bromo compound.  Mixtures of isomeric ditolyldichlorosilanes are prepared by the method of example 8 of Specification 646,584 and may then be converted to ditolyldimethylsilanes with methyl magnesium bromide according to the method of Specification 571,725.