baber/WOPTO huggingface dataset:
Patent GB-833342-A (GB)
Title: Improvements in indicating and computing apparatus
IPC: G01S7/285
Filed: 1956-02-07
Abstract: 833,342. Electric selective signalling apparatus. DEGEN, A. A. C. April 17, 1957 [Feb. 7, 1956], No. 3839/56. Class 40 (1). [Also in Group XXXVI] The device described produces, in a given time period, a succession of pulses the number of pulses produced being proportional to the sine or cosine of the angle through which an input shaft is rotated. Rotation of the input shaft causes rotation of a first rotary switch IS, Fig. 1, having banks of contacts IS1 to IS13 and of a second rotary switch ISA having banks of contacts ISA1 to ISA6, the switch IS being arranged to make a complete revolution each time the input shaft turns through 45 degrees and the switch ISA being arranged to make a complete revolution every time the input shaft turns through 1 degree. The contacts on these two switches are so arranged that a combination of leads extending therefrom are connected to earth, the earthed combination representing the magnitude of the sine of the angle through which the input shaft has been turned by means of a correspondence which is such that as the leads are scanned by a constantly rotating switch IM, having banks IM1 to IM6, in each rotation of the switch banks IM1 and IM2 apply pulses of momentary earthing to a contact MR2 each pulse contributing an amount of 1/40 to the value required, banks IM3 and IM4 apply pulses to a contact MR4 each pulse contributing an amount of 1/240 to the value required, and banks IM5 and IM6 apply pulses to a contact MR5 each pulse contributing an amount of 1/1200 to the value required. In operation with the switch IM continuously rotating a relay MR is energized closing its contacts MR1 to MR9 (contacts MR6 to MR9 not being shown) every five pulses applied to contact MR5 cause an extra pulse to be applied to contact MR4 and every six pulses applied to contact MR4 cause an extra pulse to be applied to contact MR2 and thus the number of pulses reaching an output line 24 in a given time period is proportional to the sine of the angle through which the input shaft has been turned. The device shown in Fig. 1 produces a number of pulses proportional to the sine of an input angle up to 45 degrees. A similar device (Fig. 2, not shown) produces a number of pulses proportional to the sine of the input angle for the range 45 to 90 degrees, and a switching arrangement (Figs. 3 and 4, not shown) selects the appropriate one of the two pulse generators and also produces a signal indicating whether the value of the sine is positive or negative. The switching device also produces pulses proportional in number to the cosine of the input angle by using the fact that the cosine of an angle is equal to the sine of its complementary angle. By modulating the speed of rotation of the switch IM the product of the sine (or cosine) of the input angle with some further variable can be obtained.
Patent GB-960352-A (GB)
Title: Improvements in or relating to the fabrication of fuel elements and elements so produced
IPC: G21C21/02
Filed: 1963-01-30
Abstract: A nuclear fuel pellet (see Division G6) comprising an alloy or sinter mixture of fissile material and a metal hydride has the metal (zirconium) hydrided, when already combined with the fuel and partially or totally enclosed in an hydrogen pervious metal cladding, at a temperature of 700-900 DEG  C., by passing into control with the pellet purified hydrogen at a controlled pressure.  The temperature and pressure at which hydriding takes place are determined by reference to Figs. 1 and 2 (not shown) the essential features being that at no time at a given temperature is the corresponding hydrogen disassociation pressure exceeded, and that each lower phase is substantially completed before hydriding of a higher phase commences. The hydrogen may be purified by passing over a bed of granulated zirconium.  Hydriding by this process usually takes 4 days and results in an hydrogen-zirconium atom ratio of 1.7 : 1.
Patent GB-326945-A (GB)
Title: Improvement in gear shifters
IPC: F16H63/30
Filed: 1929-02-05
Abstract: 326,945. Jackson, L. Mellersh-, (Craig, A. M.). Feb. 5, 1929. Interlocking; pneumatic transmission; setting and retaining devices. - In a gear shifting mechanism in which shift rods are connected to pistons moving in cylinders of which either end can be connected through a valve to a source of suction, the piston is brought to a central position preparatory to a gear shift, and the shift rod not in operation is locked against movement, when the gear is out of neutral. To rotate the valve handle to the position for reverse, a pivoted detent 16<1> must be separately operated by a thumb piece 16<11> and to prevent theft the valve handle may be locked in the neutral,position by a lock 24 operated by a removable key 27.
Patent GB-1093423-A (GB)
Title: Improvements in or relating to dielectric compositions
Inventor: COCKBAIN ALAN GRAY
IPC: H01B3/02
Filed: 1964-01-30
Abstract: A ceramic composition is formed from a mixture of sphene (CaSiTiO5) and TiO2 in proportions such that the temperature coefficient of permitivity of the mixture is within the range + 1200 to -800 p.p.m./ DEG  C.  Proportions of sphene to TiO2 of 4:1,1:1 and 1:3 are disclosed.
Patent GB-1397920-A (GB)
Title: Endless belt conveyors
IPC: B65G17/12
Filed: 1974-01-29
Abstract: 1397920 Endless conveyers E CIONI L CIONI and R ANICHINI 29 Jan 1974 [29 Jan 1973] 03964/74 Heading B8A Carriers 9 have projections and recesses which engage corresponding recesses and projections on the outer surface of an endless belt 5. The recesses and projections of each carrier and the belt are maintained in engagement by the presence of a circular cross-section pin 17, the circumference of which has a flat engaging the flat inner surface of the belt. The pin is held in position by circular apertures formed in radially inwardly projecting side members 9A, 9B, of the carrier. Each carrier is formed with a socket 9A for receiving a container (not shown). In a modification (Figs. 10 and 11), each carrier has a member 39 which engages adjacent carriers and prevents reverse curvature of the belt. In a further modification (Figs. 5-8, not shown), the carriers of two spaced side-by-side conveyers are bridged by a common carrier member having several load carrying sockets.
Patent GB-944441-A (GB)
Title: Improvements relating to the separation of hydrocarbon mixtures
IPC: B01D53/04
Filed: 1961-02-02
Abstract: A vapour phase process for separating straight chain hydrocarbons from petroleum fractions boiling in the C10-C20 range comprises (1) contacting the fractions with a 5 <\>rA mol. sieve to absorb straight chain hydrocarbons, (2) contacting the sieve with a purging medium to remove material superficially absorbed or held interstitially between sieve particles, and (3) desorbing the straight chain hydrocarbons with n-pentane or n-butane at a pressure equal to or greater than the pressure in the absorption stage. Feedstock is preferably pretreated to reduce the sulphur content to 0.005-0.015% weight and the temperature and pressure of the absorption and purging steps lie within the ranges 300-450 DEG  C., preferably 350-390 DEG  C., and 50-300 p.s.i.g., preferably 100-150 p.s.i.g.  The desorption is preferably carried out at 0-100 p.s.i.g. higher than the absorption pressure.  A guard bed 2, containing a 4 <\>rA molecular sieve to remove water and polar substances, is provided. The Provisional Specification is not restricted to desorption with n-butane or n-pentane.
Patent GB-454351-A (GB)
Title: Improvements in or relating to lighting devices
IPC: F21S13/10
Filed: 1936-02-10
Abstract: 454,351. Street &c. overhead lamps. WINKLER, G. W., 58, Garenkokerskade, Haarlem, Holland. Feb. 10, 1936, Nos. 3997 and 3998. Convention dates, Feb. 11, 1935 and Oct. 21, 1935. [Class 75 (iv)] In a street or like overhead lamp comprising one or more linear or substantially point sources of light and one or more troughshaped, circular, or polygonal reflectors, the reflecting surfaces are completely hidden from view at undesirable angles by shading means having a light absorbing surface. The shading means may be in the form of hoods or rims along the edges of the reflectors, and/or in the form of radial diaphragms or partitions. The latter are preferably arranged so that rays reflected directly by the reflectors are projected along the edges of the partitions or parallel to the surfaces of the partitions. The shading means may be arranged only on the side or sides of the reflectors, and preferably so that no portion of the reflectors is visible when viewed at an angle of elevation of about 15‹. The shading may be obtained by coating with dull black enamel or by pasting on black velvet, velour, or like material. Alternatively, coloured shading may be employed with coloured light sources. Fig. 1 shows alternative hoods 10, 1, 2, 3, 4, of different shapes, each of which extends at least as low as the line 9 so as to screen the portion 7 of the reflector 6. Fig. 3 shows how a large hood AB may be replaced by a small hood AC and a partition DE. Fig. 5 shows a cross-section of an elongated reflector fitted only with a partition G having at its upper end an additional reflecting shade a facing the light source. In the form shown in Fig. 14 the reflector comprises a circular part v<1>, v<2> between parabolic parts u<1>, v<1>, u<2>, v<2> which reflect rays parallel to light absorbing partitions T<1>, T<2>, the upper ends of which are fitted with additional reflecting shades c<1>, c<2>. Shading hoods u<1>, z<1>, u<2>, z<2> may also be provided, the portions u<1>, yl, u<2>, y<2> thereof being made light absorbing or associated with additional reflecting shades b<1>, b<2>.
Patent GB-1425631-A (GB)
Title: High surface area fibrous catalyst support,catalysts and processes
IPC: B01J21/06
Filed: 1973-01-26
Abstract: 1425631 Exhaust gas treatment UNION CARBIDE CORP 26 Jan 1973 [27 Jan 1972] 3999/73 Headings C1A C1J and C1N [Also in Divisions B1 and C2] Metal oxide (including silica-containing) fibres having a surface area of at least 5 m.<SP>2</SP>/g. are prepared by (i) impregnating a preformed organic fibrous material with (a) at least one metal compound which forms a metal oxide which sinters when the impregnated material is heated to a temperature sufficiently high to carbonize and oxidize the organic material and convert the metal compound to the oxide and (b) at least one metal compound which forms a metal oxide which does not sinter under the same conditions and in the presence of the first metal compound, the compounds being selected from those of the metals Be, Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co, Ni, Cu, Zn, Cd, Al, Ga, Sn, Pb, U or of silicon; and (ii) heating the impregnated material to a temperature to carbonize and volatilize the organic material, form the metal oxides and sinter one of the oxides, at least a portion of the heating being carried out in an oxidizing atmosphere without ignition of the organic material. A catalytically active component, such as the noble metals or other transition metals or their compounds, can be incorporated into the fibres during preparation or impregnated on to the finished fibres. The fibres may be used to form a monolithic catalyst support. Catalysts based on the fibres may be used for the treatment of exhaust gases by oxidation of carbon monoxide or hydrocarbons and eduction of nitrogen oxides, for the production of nitric acid from ammonia and oxygen and for the oxidation of sulphur dioxide to sulphur trioxide for sulphuric acid production. The examples relate to zirconia-alumina fibres impregnated with or incorporated with platinum, manganese oxide, cobalt oxide, chromium oxide, chromium oxide-copper oxide, copper oxide-manganese oxide, copper oxidevanadium oxide, platinum-manganese oxide or platinum-rhodium for exhaust gas treatment.
Patent GB-234418-A (GB)
Title: Improvements relating to envelope making machines
IPC: B31B23/00
Filed: 1925-02-12
Abstract: 234,418. Hugo, T. Feb. 12, 1925. Envelopes, making. - Envelope or bag blanks are cut and formed from a web a by reciprocating stamps d and cutters e, and are fed by rolls b and c to an intermittently operating folding machine, so that one diagonal of the blank is in line with the line of movement of a transferring device, such as tongs z, which carries the blank to the folding device m. The cutting and folding device may be used in conjunction with a machine in which rotating arms gum and feed the blank to the folding station, and in the case of machines for forming two envelopes simultaneously, two cutting and feedingdevices may be employed. For producing envelopes of different shape, the feeding device may be adjustable angularly on the machine table, and by detaching the device, blanks may be fed from a pile table of usual construction.
Patent GB-550910-A (GB)
Title: Improvements in luminairs
IPC: F21V5/00
Filed: 1942-03-26
Abstract: 550,910. Luminairs. HOLOPHANE, Ltd. March 26, 1942, No. 4035. Convention date, May 27, 1941. [Classes 75 (ii)] and 75 (iv)] A luminair suitable for use in lighting motor vehicle filling stations comprise a lamp bulb 13 'and reflector 14 mounted in a metal hood 10 to which a two-part refractor R is secured by a ring 15, the refractor producing an intense symmetric downwardly directed beam for lighting areas remote from the luminair and a strong asymmetric beam at a comparatively low angle above the nadir for lighting a vehicle or area near the support for the luminair. The symmetric beam is formed by the light passing through concentrating prisms 24 on the outer surface of the wall of the inner part 16 of the refractor, vertical diffusing flutes 26 on the inner surface of the wall of the outer part 17 and large annular prisms 25 at the upper portion of its outer surface. The asymmetric beam is formed by the light passing through annular concentrating prisms 27 on inner surface of the bottom of the inner part 16 and parallel prisms 28 on the inner surface of the bottom of the outer part 17. Raising the light source decreases the upper beam but only slightly affects the direction of the lower beam. The ring 15 and refractor parts 16, 17 may have co-operating notches and grooves to ensure correct orientation and gaskets 19, 21 are interposed between them.
Patent GB-322949-A (GB)
Title: Improvements in or relating to direction-signalling devices for use on road-vehicles
IPC: B60Q1/34
Filed: 1929-02-07
Abstract: 322,949. Ward, C. E. Feb. 7, 1929. Road-traffic signals on vehicles. -Direction-signalling arrows L at the front and rear of a vehicle are extended laterally on one side or the other by turning a. pivoted handle E containing a pilot lamp X which lights in the signalling position. The handle E turns a segment C engaging a pinion B which is connected by a flexible shaft to a pinion K adapted to run on a fixed rack P and engage a rack N on the slide bar L, which may carry lamps.
Patent GB-688040-A (GB)
Title: Improvements relating to high frequency aerial arrangements
Inventor: JEFFERY GLYNN BENNETT
IPC: H01Q19/28
Filed: 1950-02-18
Abstract: 688,040. Aerials. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 19, 1951 [Feb. 18, 1950], No. 4209/50. Class 40 (vii). A unipole aerial and additional elements such as one or more directors or reflectors and possibly another unipole tuned to a different frequency, are supported by a rigid member which serves as an earthing device, effectively earthing the feeder employed for driving energy from the aerial. In a first embodiment, Fig. 1 (not shown), the member comprises a rod or tube on which the rigid tube or rod unipole is mounted by means of an insulating bracket, the ends of the member may be bent through a right-angle to lie parallel to the unipole and comprise respectively a director and reflector. A coaxial feeder may be used having its inner conductor connected to the lower end of the unipole and its outer to the member. If desired, the reflector and director may be separate elements insulated from the earth member and spaced from the unipole distances of O.1# and 0.25#, respectively, where all the elements are #/4 long. As shown in Fig. 2, a folded unipole 7, 8 may be substituted for the simple unipole in the embodiment described above. Additional reflectors may be added on a cross-piece attached to the earthing member 3 and at right angles to it, Fig. 3 (not shown). The earthing member may extend beyond the elements it supports.
Patent GB-837166-A (GB)
Title: Temperature control system
IPC: B64D13/00
Filed: 1958-02-10
Abstract: 837,166. Refrigerating. UNITED AIRCRAFT CORPORATION. Feb. 10, 1958 [Feb 28, 1957], No. 4240/58. Class 29 [Also in Group XXIX] Apparatus for controlling the operating temperature of a fluid supplied to a compartment or enclosure comprises a refrigerant evaporator in heat exchange relation with the fluid, a refrigerant compressor, a conduit connecting the evaporator outlet with the compressor inlet, a valve in the conduit for controlling the refrigerant pressure in the evaporator, means responsive to the pressure in the evaporator outlet for actuating the valve, and means responsive to pressure above a predetermined value in the compressor inlet for modifying the valve actuation by the evaporator outlet pressure - responsive means. In the system shown air passing through a duct 12 to an aircraft pressure cabin 10 is cooled by passage through a refrigerant evaporator 14 in circuit with a motor-driven compressor 18 and a condenser 24, the evaporator back pressure being varied to regulate the air temperature by a servo-operated throttle valve 30 in a duct 28 between the evaporator and the compressor. The servo control device includes a spring 52 bearing against a plate 36 forming the division between two bellows units 40, 44, the former of which is subjected to evaporator back pressure through a pipe 42, while the latter is evacuated. Plate 36 is connected to a valve 64 controlling a bleed opening 66 between pipes 70, 72 respectively connected to the compressor inlet and delivery pipes 28, 22. The pressure in the valve compartment 76 with which pipe 72 communicates operates a diaphragm 78 controlling throttle valve 30. Cabin 10 is provided with a thermostat 32 controlling the operation of an electric motor 34 which, through a rack and pinion 58, 60, varies the loading imposed by spring 52 to regulate the setting of throttle valve 30 and hence the evaporator back pressure. Unloading of spring 52 is limited by a stop 62 to prevent the back pressure from being reduced to such a value as would result in freezing of the cabin air supply. The left hand side of diaphragm 78 communicates by a pipe 86 with the compressor inlet 28, and a further pipe 88 is connected to pipe 72 downstream of a restriction 74, this latter pipe including a bellows 90 arranged, in the event of the compressor inlet pressure rising to a predetermined value, to open a valve 92 controlling a bleed opening 94 by which the pressure acting on diaphragm 78 is reduced, to reduce the degree of opening of valve 30 and thus prevent over-loading of the compressor.
Patent GB-301248-A (GB)
Title: Improvements in and relating to mounting and manipulating electric lights for automobiles
IPC: B60Q1/24
Filed: 1928-02-10
Abstract: 301,248. Webber, J. H. R. Feb. 10, 1928. Vehicle Lamps, directing.-An electric headlight or spot-light b is mounted in an angularlydisposed socket k on a bevel-wheel i in mesh with a bevel-pinion h carried by a spindle g, passing through an extension c of the casing a and provided with an operating handle or knob f, the extension c being secured as by a clamp e to the windscreen or body of the vehicle so that the beam of light cannot be directed straight ahead of the vehicle. The wheel i has a boss p mounted on a pivot o carried by the detachable back n of the casing, a spring washer r being provided to press the wheel against a lip q. The rotation of the wheel may be limited by stops s. The electric leads are passed around the boss p and through holes t, u.
Patent GB-354329-A (GB)
Title: Improvements in and relating to the manufacture of ropes and the like
IPC: D07B3/06
Filed: 1930-02-08
Abstract: 354,329. Ropes. WHITECROSS CO., Ltd. and LLOYD, H. D., Warrington, Lancashire. Feb. 8, 1930, No. 4362. [Class 109.] The tendency of the core of a locked-coil or other wire rope to untwist is increased by putting extra turns into it, while the outer wires or strands are laid around it, and avoiding untwisting of the outer wires after they have been laid on the core. Ropes so formed either do not revolve when released from the reel after being made, or revolve in a direction to twist the covering wires so as to tighten them upon the core. The core drum 2 is mounted in a cradle 3 which can be rotated in either direction independently of the covering machine 1. The core may be laid up in one direc. tion, or may comprise central wires laid the opposite way to the remainder of the core. After a layer has been applied to the core, the covered core may be wound back from the take-up reel so that the next layer may be applied from the same end of the rope. Specifications 5724/84 and 3407/85, [both in Class 109, Ropes &c.], are referred to.
Patent GB-470471-A (GB)
Title: Improvements in or relating to the production of alkyd synthetic resins
IPC: C08G63/48
Filed: 1936-02-13
Abstract: A drying-oil or mixture of drying-oils is condensed with a polybasic acid (mixed with the oil as such or in the form of anhydride together with an amount of water at least theoretically sufficient to convert the anhydride to acid) by heating under such increased pressure that dehydration of the acid is prevented, and subsequently condensing the reaction product with a polyhydric alcohol, and/or with a partially esterified polyhydric alcohol containing at least one free hydroxyl group.  The first condensation preferably takes place at 280 to 300 DEG  C., and may be in the presence of oil-splitting catalysts, e.g. cobalt naphthenate, sodium glycerate; and the second stage preferably takes place between 220 and 280 DEG  C., when there may be added natural acidic resins, e.g. colophony, run copal.  As drying-oils there may be used linseed, chinawood, perilla, and soya bean oils; as polybasic acids, phthalic and maleic acids; as polyhydric alcohols, glycol, glycerol, and pentaerythritol.  In examples: varnish linseed oil is heated under pressure with (1) phthalic anhydride and water in the presence of cobalt naphthenate at 300 DEG  C., (2) phthalic acid at 280--290 DEG  C., (3) maleic acid at 280--290 DEG  C., and the product condensed with glycerol at (1) and (2) 240 DEG  C., (3) 220 DEG  C.  The resin dissolved in white spirit or turpentine, with the addition of siccatives forms a varnish or enamel medium, Specifications 285,459, [Class 2 (iii)], 370,440, and 470,472 are referred to.
Patent GB-606410-A (GB)
Title: Improvements in fluid pressure regulators
IPC: F16K1/00
Filed: 1946-02-13
Abstract: 606,410. Fluid-actuated valves. NEALE, F. Feb. 13, 1946, No. 4429. [Class 135] In a fluid-pressure control valve, the supply of pressure fluid to a chamber 17, connected to a fluid-pressureoperated device, e.g. a compressed air brake, is regulated by an inlet valve member 10, actuated by a valve lifter 22 having spherically-shaped ends, one of which co-operates with a seating surrounding an exhaust passage 15<SP>1</SP> in a piston 15 to control the exhaust of fluid from the chamber. The lifter 22 is freely and resiliently mounted in a recess in the inlet valve member, and thus has limited freedom of movement in all directions to allow for misalignment of the piston and inlet valve member. The control valve is operated by external pressure on a knob 19 acting through a spring 20 on the piston 15.