baber/WOPTO huggingface dataset:
Patent GB-594551-A (GB)
Title: Improvements in or relating to power plants, and particularly gas turbine power plants
IPC: F02C7/22
Filed: 1945-01-19
Abstract: 594,551. Liquid-fuel burners. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Jan. 19, 1945, No. 1637. Convention date, Jan. 31, 1944. [Class 75 (i)] [Also in Groups XXVI, XXVII and XXIX] Apparatus for supplying fuel to the burners of combustion apparatus, the products from which operate a prime mover, comprises means, e.g. a pump; driven by the prime mover for supplying fuel at a rate dependent upon the speed of the prime mover, a conduit between said means and said burners having a byepass, the flow through which is controlled by a valve normally urged towards its closed position, and means responsive to the rate of flow for opening said valve and thus preventing the speed of the prime mover exceeding a predetermined value. As applied to a gasturbine plant for a jet aircraft of the kind described in Specifications 590,799, [Group XXVI], and 592,505, [Group XII], the apparatus, which is housed in a tunnel 41 in the upper part of the turbine casing, comprises a constant displacement pump 15 driven directly by the turbine 19 and discharging through a Venturi tube to a throttle valve 48 having an outlet 49 to the manifold 29 of the burners 27, an outlet 53 connected to the fuel inlet 43 to the pump, and a byepass port 63. A valve member 54 controlled through pulley gear operated by a handle 58 under the control of the pilot regulates the flow through the outlets. The port 63, which is always open to the Venturi tube, is connected to a control valve 65 having a member 69 urged to its closing position by a spring 73 acting upon the piston 72 of a servomotor, the opposite ends of which are connected to the inlet and the throat of the Venturi tube so that the pressure differential, which is a measure of the flow through the tube and of the speed of the turbine, controls the opening of the valve. The spring is selected so that the valve opens when the speed of the turbine exceeds a predetermined value. The speed may be indicated on a pressure gauge 78 calibrated in r.p.m. In a modification, the control valve piston is replaced by a disc to the opposite sides of which are secured bellows connected to the Venturi tube.
Patent GB-904130-A (GB)
Title: Means for stabilising cargo tanks in ships
IPC: F17C13/08
Filed: 1961-01-16
Abstract: 904,130. Storing liquefied gases. CONCH INTERNATIONALE METHANE Ltd. Jan. 16, 1961 [May 24, 1960], No. 1714/61. Class 8(2). [Also in Group XXXIII] The cargo tanks 20, in a liquefied gas tanker, are stablilized against pitching and rolling movements of the ship by tensioned rods 32 secured to the tank tops and the ships structure. The rods 32, which allow for expansion and contraction of the tank, are secured by nuts 40 to the tank top brackets 34a, 34b and to the ships structural member 36. A plurality of rods 32 may extend transversely or longitudinally of the ship. The rods may be pivoted to the member 34a, 34b and 36. The tanker comprises double hulls 12 and 14 the inner of which is lined with heat insulating material, e.g. fibre glass, cork, balsa wood, foamed plastic or perlite and is provided with tanks, (not shown) for tank services.
Patent GB-854065-A (GB)
Title: Improvements in magnetic powder clutches or brakes
Inventor: HENDERSON CYRIL
IPC: F16D37/02
Filed: 1956-01-18
Abstract: 854,065. Magnetic clutches and brakes. SMITH & SONS (ENGLAND) Ltd., S. Jan. 18, 1957 [Jan. 18, 1956], No. 1742/56. Class 35. A magnetic powder clutch or brake comprises an inner annular driven member of U-shaped cross-section and an outer driving member which carries an exciting winding disposed within the channel of the driven member. In the double unit shown, one unit comprises a driven member in two parts 12 and 13, secured together and to a stub shaft 10 and hollow shaft 8 to which the driven shaft 7 is splined. The driving member comprises a cylindrical housing 3 secured to side plates 5 and 24, and to a flange 6 on the driving-shaft. Two annular plates 15 project from the housing 3 into the channel 14, the exciting coil being disposed between them in bonding material 17 which also holds ring 19 between the arms of an annulus of U-section 18 to form a powder trap. Further traps are formed by the'projections 22 and 25 on the sideplates. and also by annular permanent magnets 23 and 29 on the driving member which .cooperate with adjacent portions of the driven member to form magnetic traps. Specification 649,553 is referred to. Reference has been directed by the Comptroller to Specification 779,432.
Patent GB-1274432-A (GB)
Title: Improved retractor
Inventor: ENGLISH THOMAS ANTHONY
IPC: A61B17/02
Filed: 1970-01-14
Abstract: 1,274,432. Retractors and clamps. T. A. ENGLISH. 19 April, 1971 [14 Jan., 1970], No. 1765/70. Heading A5R. A retractor which may be used to expose a bone 22 comprises two flat arms 10, 12 having at one end respective arcuate hooks 14, 16, the hooks being of such a size that one fits inside the other, the cooperating surfaces of the hooks being formed to allow relative rotational movement of the arms in one sense but not in the opposite sense. The larger hook preferably has at least one transverse projection on its inner arcuate surface which projection is arranged to slip successively into a plurality of grooves in the outer arcuate surface of the smaller hook as the arms are moved to a splayed position. The projection and grooves may extend either fully or partially across the width of the hooks. The free ends of the hooks may have chisel edges. The ends of the arms remote from the hooks may be adapted to hold a bar 38 enabling the retractor to be used as a clamp to hold a member 52 against the bone. The member 52 may be a splint plate (62), Fig. 5, (not shown), used in splicing a fractured bone. At one end the bar 38 is received in a slot 40 and is held to arm 12 by a screw 42 and a hand wheel 50, or alternatively, Fig. 3, (not shown), by a toothed lever (32) cooperating with a slot in the bar. The bar 38 may be replaced by a wire member (64), Fig. 5, having end portions (64b, 64c) arranged to be held beneath the arms of the retractor.
Patent GB-976894-A (GB)
Title: Improvements in girdles
Inventor: ZANCA SALLY ANN
IPC: A41C1/02
Filed: 1963-01-15
Abstract: 976,894. Girdles. MAIDENFORM Inc. Jan. 15, 1963, No. 1828/63. Heading A3V. A girdle comprises a flexible tubular part having a transverse slit below the waistband bridged by elastic material having a greater degree of flexibility than the tubular part, the slit being of sufficient length to allow the waistband to move, while the girdle is being worn, without disturbing the rest of the girdles The girdle has an elastic band 4 with inner ply 4<SP>x</SP> which abuts the upper edge of the back 2 providing a slits which has a reinforcing strip 10 sewn to the lower edge. An elastic band 8 underlies the slit and is sewn along seams 9 to the reinforcing strip 10 and the inner ply 4<SP>x</SP>. The sides of the band 8 are sewn to the sides of the girdle with reinforcing tapes 11. The upper edge of the girdle may be reinforced by a soft fabric band 12. The girdle is formed from a single piece of material the front having an insert permitting vertical but resisting lateral stretch.
Patent GB-1000970-A (GB)
Title: Method of treating semiconductor materials
IPC: H01L21/00
Filed: 1962-01-18
Abstract: <PICT:1000970/C6-C7/1> A method of treating an arsenic doped germanium crystal in which th concentration of free carriers is less than the actual concentration of arsenic atoms in the crystal, comprises heating the crystal at a temperature between 800  DEG C. and 900  DEG C. for between 1 and 60 minutes and then quenching the crystal, so that the carrier concentration is increased.  It is stated that by this method the carrier concentration may be doubled (i.e. to 9x1019 atoms per c.c.) thus rendering such a crystal useful in the manufacture of Esaki diodes.  One method of preparing a crystal consists in mixing 100 gm. of Ge with 10 gms. of GeAs in a graphite or fused silica crucible 11, in a helium atmosphere. The mixture is heated to between 740  DEG C. and 935  DEG C. so that it is completely molten, the mixture melting temperature being 740  DEG C. for a 40% by weight of As mixture and 935  DEG C. for a 0.5% As mixture.  A seed crystal of Ge, 12, is lowered into the melt and rotated therein, the melt temperature being lowered until the crystal begins to grow.  The Ge which is initially deposited on the crystal is then removed by raising the temperature until it melts and then maintaining this temperature for 18 hours so that the crystal becomes saturated with As, the carrier concentration then being about 3-5x1019 atoms per c.c. Alternatively the thermal gradient crystal growth method may be used to obtain a saturated crystal.  The crystal is mechanically diced and etched using CP-4 solution.  The dice are heated in an inert atmosphere at a temperature of between 800  DEG C. and 900  DEG C. for 1-60 minutes. The upper temperature limit is chosen since it is below the melting point of Ge and the lower one since the mobility of As is too small to allow arsenic atoms to diffuse freely into the crystal below 800  DEG C.  Again appreciable diffusion will not occur if the heating lasts less than one minute and if heated for over 60 minutes the arsenic vaporized unduly and is thus lost to the system.  The crystal is then cooled to 500  DEG C. in 1-5 seconds using a stream of nitrogen gas, the rapid quenching preventing reprecipitation of As, the crystal being further cooled to room temperature in a time period of 5 minutes.  Alternatively cooling may take place in baths of ethylene glycol, water or oil. The final carrier concentration is about 8 to 9x1019 atoms/c.c.
Patent GB-574736-A (GB)
Title: Improved anti-dimming material
IPC: C09K3/18
Filed: 1941-07-05
Abstract: An anti-dimming material consists of absorbent cloth or similar material, or regenerated cellulose, cellulose acetate, or other transparent material, in which is absorbed a polyglycerol ester obtained by the partial esterification of polyglycerol, e.g. with one of the soap-forming fatty acids such as palmitic or stearic acid. The regenerated cellulose may be in the form of sponge, or it may take the form of a sheet steeped in the polyglycerol ester and rolled upon itself to form a cylinder, the end of which may be pointed for application to eyepieces &c. Respirator eyepieces may also be made from cellulose acetate containing about 5 per cent of polyglycerol ester.  Specification 439,435, [Group III], is referred to.
Patent GB-812968-A (GB)
Title: Improvements in and relating to optical systems
IPC: G02B23/14
Filed: 1956-01-20
Abstract: 812,968. Optical systems. SVENSKA ACKUMULATOR AKTIEBOLAGET JUNGNER. Jan. 20, 1956 [Jan. 22, 1955], No. 2052/56. Class 97(1) In a Herschel system employig a concave spherical mirror the optical axis of which is inclined to the principal ray from the centre of the object to the centre of the mirror, image aberrations are minimized by a transparent refraction element located optically asymmetric with respect to the principal ray of the system. The system is shown as applied to a sight in which a margin mirror 13 collimates light from a luminous body 10 and reflector 11, the light being reflected by a plane mirror 14 and a transparent plate 15 so that an eye 27 sees an image of the body 10 at infinity. The optical element 12 is part of a plano-convex lens located so that its optical axis coincides with the optical axis of the mirror 13, the element being asymmetric with respect to the principal ray III. The mirror 14 is carried by a shaft 18 rotatable in bearings 19 on a plate 21 supported by a shaft 24 rotatable in bearings 25, the shafts 18 and 24 being rotated by servo-motors 22 and 26 in accordance with the co-ordinates of a moving target so that the instrument remains sighted on that target. Specification 215,331 [Class 97(ii) is referred to.
Patent GB-275863-A (GB)
Title: Improvements in and relating to joints for boxes, cabinets or casings
IPC: G01G21/28
Filed: 1927-01-24
Abstract: 275,863. Marks, E. C. R., (Toledo Scale Co.). Jan. 24, 1927. Casings. - The base casing of a weighing scale is provided with a joint formed of members 11, 16 having overlapping portions which are secured together, and one of the members has a groove 19 and the other a turned edge lying within such groove but out of engagement therewith. A corner member 15 is secured by screws 17 to each of a pair of side plates 11, and to the overlapping member 16. The plates 11 are of channel shape and have stiffening depressions 12. A porcelain or lacquer coating 18 is applied to the panels except between the members 15, 16. The corner plates 16 may be metal-plated.
Patent GB-1331799-A (GB)
Title: Light defelctor
IPC: G02B26/02
Filed: 1971-01-15
Abstract: 1331799 Light deflector R C A CORPORATION 15 Jan 1971 [20 Jan 1970] 2092/71 Heading G2J A light deflector comprises a transparent solid 10 and a transparent liquid 24 in contact with one surface of the solid, and means 12 being provided for vapourizing the liquid at the surface of the solid so that, when vapourized, the light is reflected at 12, and when not the light passes through as at 28. The means may be a conductive layer, or conductive glass in circuit with a means for producing an electric pulse. The liquid may only be on one side of solid 10 Fig.4 (not shown), and the light beam may be transmitted between a number of means 12 by internal reflection inside a solid Fig.5 (not shown). Arrangements are described Figs.6 and 7 (not shown) for arranging for the light beam to be selectively reflected to one of a number of positions.
Patent GB-122894-A (GB)
Title: Improvements in or relating to Valve-mechanism for Reciprocating Engines.
Inventor: ANTHONY ALFRED HYMAN
IPC: F01L21/04
Filed: 1918-02-05
Abstract: 122,894. Anthony, A. H. Feb. 5, 1918. Fluid-actuated gears.-The slide-valve D<1> is integral with a cylinder D which reciprocates over a stationary plunger E secured by a rod F to the end of the valve-cheet. The cylinder D is provided with separate admission and exhaust ports on either side of the plunger E. These end in slots in the valve face which pass over corresponding ports in the valve seat communicating with the interior of the cylinder. The admission of and exhaust from either side of the plunger to move the valve is controlled by four pockets in the main pietou B.
Patent GB-112837-A (GB)
Title: Improved Screw Cutting Appliance.
Inventor: POOLE WILLIAM EDWARD
IPC: B23G5/10
Filed: 1917-02-13
Abstract: 112,837. Poole, W. E. Feb. 13, 1917. Screwing.-In a screw-cutting applianee of the kind comprising three or more threaded disk cutters c, d, e, f, provided with cutting-edges x<2> and revolubly mounted on a plate a<2> through which the work y is fed, the disks are calibrated as shown in Fig. 3 so that they may be accurately reset after sharpening. The plate a<2> may rotate while the work is traversed, or the work may rotate and the plate be traversed.
Patent GB-134136-A (GB)
Title: An Improved Device for Holding Clothes and other Articles to be Dried or Aired.
Inventor: FERGUSON-FAGERBERG JOHN HELMAR
IPC: D06F57/12
Filed: 1919-01-29
Abstract: 134,136. Fagerberg, J. H. Ferguson-. Jan. 29, 1919. Clothes-frames.-Relates to clothes dryers or airers of the type in which the clothes are supported in front of the fire by rails secured to clamps attached to the mantelpiece. The device consists of two side members A provided with clamps B by means of which they can be secured to the mantelpiece, and joined by a rail D for supporting clothes. Other side members E and F are pivoted to the lower ends of the side members A and are provided with clothes-rails, so that the device can be opened out for use as shown. Cords J and links H are provided to support the device when opened out, the limbs being notched, or the cord provided with loops, to enable the inclination of the side members E, F to be adjusted. Instead of the members A having the clamps attached to them, they may be provided with hooks a<1>, Fig. 8, to enable them to be attached to the clamps, which are formed with stops b to prevent the hooks from slipping off. The members A may be also provided with hooks for attachment to a rail when such is already carried by the mantelpiece. The cross-rails D may be telescopic, and preferably consist of a metal bar of cross or other section M, Fig. 11, with a filling or covering m of wood.
Patent GB-787852-A (GB)
Title: Airplane instruments
IPC: B64D45/00
Filed: 1955-01-25
Abstract: 787,852. Aircraft signalling and controlling apparatus. SAFE FLIGHT INSTRUMENT CORPORATION. Jan. 25, 1955 [Feb. 5, 1954], No. 2240/55. Drawings to Specification. Class 4. [Also in Group XXXVIII] The subject-matter of this Specification is identical with that described in Specification No. 787,851 but the claims differ. Specification 668,805 also is referred to. Reference has been directed by the Comptroller to Specification 660,854.
Patent GB-121847-A (GB)
Title: Process for Utilizing Dead Leaves as Stock for Making Paper Pulp.
Inventor: BRAMSON-NEE-ADELER KAREN
IPC: D21B1/00
Filed: 1918-02-07
Abstract: 121,847. Bramson (nÚe Adeler), K. Feb. 7, 1918. Materials, fibrous; pulp, preparation of.-Paper pulp is made from dead leaves. The blades or laminµ may be separated from the ribs or stalks bv know crushers or breakers and used as fuel, or the whole of the leaves may be used. For pasteboard, the material may be heated with water with or without using pressure. For paper, 5-10 per cent soda lye may be used under pressure. An apparatus for separating the blades or laminµ from the ribs or stalks consists of a perforated spherical body a rotating within a casing b and provided with balls j of cast iron or granite. These first remove the substance of the laminµ which passes through the perforations and then break up the ribs prior to treatment with liquid. Reference has been directed by the Comptroller to Specifications 1853/71, 2168/71, 4259/82, and 18572/92.
Patent GB-664171-A (GB)
Title: Improvements in wings for axial flow fans
IPC: F04D29/38
Filed: 1949-01-27
Abstract: 664,171. Screw fans. WOODS OF COLCHESTER, Ltd., and DALY, B. B. Jan. 27 1950 [Jan. 27,1949], No. 2294/49. Class 110(i) An aerofoil section blade for an axialflow fan is of twisted form but is so shaped that its leading and trailing edges lie in a small number of multihedrally related planes, whereby it can be die-cast in a two-part die split on the said planes. The blade form as viewed in Fig. 1 is symmetrical about a radial line CL. Those parts of the leading edge LE and trailing edge TE lying below a line 1-2 lie in a plane containing the line CL. The parts above the line 1-2 lie in a plane which intersects the first plane along the line 1-2. The line 1-2 may be inclined in the opposite direction, so that all or most of the leading edge is in the radial plane, the outer part of the trailing edge then being in the other plane. The die may be split on three planes, comprising a radial plane intersected by two other planes, so that the leading edge is inclined forwards and the trailing edge is inclined backwards when the blade is viewed at 90 degrees to Fig. 1. The blade may be mounted for adjustment of pitch as in Specification 638,856, and may be of aluminium alloy cast under gravity pressure
Patent GB-209954-A (GB)
Title: Improved means for ensuring air and gas tight joints between the shell of a steam generator of the lancashire and cornish type and its brickwork setting
IPC: F23M5/02
Filed: 1923-01-27
Abstract: 209,954. Greenhalgh, W. Jan. 27, 1923. Settings.-Expansion joints between the flues and shell of a Lancashire or Cornish boiler comprise a casing 6, a, joint plate 12 in contact with the shell and slidably fitting in an opening in the casing, a plate 15 having a vertical edge in contact with the joint plate and a plate 20 having a vertical edge in contact with the casing, these two plates 15, 20 forming a two-part gravity member, and means for using the weight of the plates 15, 20 to press the plate 12 against the shell. The plate 15 has an inclined lower edge 18 resting on rollers 19 and has inclined faces 16, 17 which coact with faces 21, 22 on the plate 20. A roller 23 in contact with the face 16 is held by the plate 20. The plate 12 slides on pins 10 and a roller 14, and has a recess containing asbestos rope packing in its edge in contact with the shell.
Patent GB-602872-A (GB)
Title: Improvements in or relating to electron-optical devices
IPC: G02B3/08
Filed: 1945-01-31
Abstract: 602,872. Optical systems. FARNSWORTH TELEVISION & RADIO CORPORATION. Jan. 31, 1945, No. 2492. Convention date, Jan. 27, 1944. [Class 97 (i)] In a system comprising a concave mirror 15, a spherical aberration correcting lens 16 and an electron tube 1 for taking or projecting television images, distortion due to refraction by the envelope of the tube is corrected by a disc 22 of graded thickness. The disc 22 may comprise a number of glass discs as shown or may be moulded or ground so that its thickness decreases from the centre to the periphery of the mirror, the disc being of such a thickness that the lateral displacement of each light beam between cathode 2 and mirror 15 caused by refraction at the envelope of the tube is corrected for each angle of incidence on the tube.
Patent GB-450481-A (GB)
Title: Improvements in or relating to apparatus for use in spot lighting
IPC: G02B27/00
Filed: 1935-01-25
Abstract: 450,481. Spot-lights. BOTTOM, W. E. RAWSON-, and PELLING, C., 52, Great Marlborough Street, London. Jan. 25, 1935, No. 2499. [Class 75 (iv)] In a spot-light, e.g. for lighting pictures, a plurality of readily adjustable or slidable masking plates 17 is interposed between the condenser 11 and the projection tube 16 and is held in position by bow-springs 18 or otherwise, each plate or slide being adapted to be adjusted independently of any of the others to enable the size and contour of the light aperture to be adjusted. The masking plates may be adjusted directly or from a distance The springs 18 hold the plates 17 between members 13a, 16a which are joined together by bolts with spacing sleeves 15. The members 13a, 16a may be flanges formed integrally with the tubes 13, 16 of the projection apparatus, or may comprise separate plates forming a carrier in which the masking plates are mounted and preliminarily adjusted, the carrier then being inserted through a slot in the tube of the projection apparatus. Supported by the tube 20 carrying the projector lens 22 is a further tube 25 with a side opening and a reflector 27, which is angularly adjustable by a screw 29 against the action of a spring, so that the position of the projected beam can be varied without altering the position of the main body of the apparatus. One or more additional arrangements of lenses &c. may be fitted around one light source.
Patent GB-1514091-A (GB)
Title: Process for preserving pharmaceutical compositions and the compositions prepared thereby
IPC: A61K39/04
Filed: 1976-01-22
Abstract: 1514091 Preserving compositions containing mycobacteria INSTITUT PASTEUR 22 Jan 1976 [23 Jan 1975] 02509/76 Heading A5B A process for the preservation of pharmaceutical compositions containing living mycobacteria comprises suspending the mycobacteria in a nutrient medium additionally containing either glycerol or dimethylsulphoxide at a temperature between 0‹C and 20‹C. The mycobacteria may suitably be of a B.C.G. strain.