baber/WOPTO huggingface dataset:
Patent GB-1159006-A (GB)
Title: Process for the Oxidation of Hydrocarbons.
Inventor: HUNT ERIC SYDNEY
IPC: C07C45/33
Filed: 1966-07-11
Abstract: 1,159,006. Hydrocarbon hydroperoxides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 21 June, 1967 [11 July, 1966; 27 Oct., 1966; 12 Jan., 1967], Nos. 30973/66, 48255/66 and 1690/67. Heading C2C. Hydrocarbon hydroperoxides are obtained by liquid phase oxidation of alkanes, aralkanes and cycloalkanes with molecular oxygen in a reactor in which the walls have been pretreated with a polyphosphate, the oxygen partial pressure being greater than 1 atmos. absolute. The preferred polyphosphate is sodium pyrophosphate. The reaction is preferably effected at 80-140‹ C. Oxidation initiators may be included in the reaction solution, e.g. peroxides or azobisisobutyronitrile. Examples relate to the oxidation of isopentane to 2-methyl-2-hydroperoxy-butane, 3 - methylheptane to 3 - methyl - 3 - hydroperoxy heptane, and cumene to α-cumene hydroperoxide.
Patent GB-312100-A (GB)
Title: Improvements in and relating to vacuum devices such as electric incandescent lamps, electron discharge tubes and the like
IPC: H03J7/18
Filed: 1928-01-18
Abstract: 312,100. British Thomson-Houston Co., Ltd., and Clark, L. J. Jan. 18, 1928. Vacuum tubes.-A getter film 3 in a discharge device or incandescent lamp is connected to a leading-in wire 7 or electrode within the envelope by attaching a resilient conductor such as a spring 5 at one end to the leading-in wire &c. 7, and at the other end by a fusible link 6 to another conductor such as an electrode 2, the link being fused by passage of current, after evacuation, so that a contact 4 on the spring is moved into engagement with the film. The contact 4 is made large in screen-grid valves. A negative potential may be applied to the film so as to enable it to clean up residual gas by attracting positive ions. The film may be used as an electrode. Reference has been directed by the Comptroller to Specification 290,301.
Patent GB-571246-A (GB)
Title: Manufacture of oil-soluble synthetic resins and of oleo-resinous varnishes
IPC: C08G14/04
Filed: 1943-02-02
Abstract: Oil-soluble phenol-aldehyde resins suitable for making varnishes are obtained by condensing cresylic acid containing at least 70 per cent xylenols, formaldehyde and petroleum residues insoluble in sulphuric acid, obtained in the extraction of hydrocarbon oils with sulphur dioxide, the condensation being carried out in the presence of a high proportion of ammonia (at least 2 1/2 per cent of .880 ammonia by weight of the reaction mixture).  Petroleum residues of the kind described are sold under the Registered Trade Mark "Ravolen."  100 parts cresylic acid, 20 parts "Ravolen 22" and 100 parts 40 per cent formaldehyde solution are heated in the presence of 10 per cent .880 ammonia solution to 100 DEG  C. on a water bath and then dehydrated under vacuum.  A clear transparent resin is obtained. The resins may be dissolved or reacted with tung, linseed or like drying oils by cooking at temperatures up to 300 DEG  C. Specification 529,237 is referred to.
Patent GB-1364031-A (GB)
Title: Abrading wheels
IPC: B24D5/10
Filed: 1973-01-12
Abstract: 1364031 Abrasive tools L R OLIVER Inc 12 Jan 1973 [14 Jan 1972] 1787/73 Heading B3D An abrading wheel comprises a relatively thin rigid disc-like member having an outer edge 26 containing abrasive 28a, a flat central hub portion 24, and an intermediate annular portion 36, the outer edge and intermediate annular portion having an axially undulating shape constituted by a series of circumferentially related undulations having radially extending spaced crests 32 and transversely extending sides 34 connecting adjacent crests, the sides being generally wedge shaped and disposed at an angle less than 30 degrees to the flat sides of the hub portion, the undulating outer edge having an effective abrading scratch wider than the thickness of the disc-like member. The member is stamped from a metal blank so as to have a central hole 22, the flat hub portion 24 and the undulations which act as vanes to effect cooling of the wheel in use. The outer edge of the wheel is armed with carbide or aluminium oxide grit which may be brazed or bonded to the edge. The crests 32 of the undulations are narrower at the outer edge of the wheel than at their inner end. The peripheral contour of the wheel may be cylindrical, conical, convex or concave, or have a notch formed therein so as to abrade two narrower bands. The wheel edge may be thinned by bevels or a radius on one or both sides thereof, or a groove may extend along the edge. Reference has been directed by the Comptroller to Specification 1,319,264.
Patent GB-140543-A (GB)
Title: Improvements in and relating to spindles for door knobs, door handles and the like
IPC: E05B3/10
Filed: 1919-01-24
Abstract: 140,543. Campbell, P. Jan. 24, 1919. Knobs and handles, attaching.-Door-handle and like spindles of the split type are formed at the ends and middle portion with a number of separated expanded parts standing out beyond the intermediate portions a so as to give a firm fit in the holes in the door handles &c. and in the door-catch operating device. As shown in Fig. 1, the spindle may be made from one piece of metal, square in section, divided at the ends and middle by transverse slots into four parts, which are then expanded. The spindle may also be made up of a number of bars secured together, or by stamping from sheet metal.
Patent GB-1170623-A (GB)
Title: Boron Carbide Product
IPC: C04B35/563
Filed: 1967-01-13
Abstract: 1,170,623. Coating by vapour deposition. NORTON RESEARCH CORP. Jan.13, 1967 [Feb. 1, 1966], No. 1874/67. Heading C7F. [Also in Division C1] Boron carbide is coated on a substrate by evaporating boron carbide from a carbon crucible which is heated by induction at a temperature of about 2300‹C. in a vacuum chamber evacuated to a pressure less than 1 x 10<SP>-3</SP> torr to create boron carbide vapours and depositing the vapours on a substrate heated above ambient temperatures. The substrate has a density less than 5À0 gm/cc and the deposition is continued until the deposit is at least one-third of the substrate thickness. The substrate may be aluminium, tungsten, or a polymeric film such as a polyimide or epoxy resin.
Patent GB-253156-A (GB)
Title: Improvements in or relating to induced draught apparatus for furnaces and other purposes
IPC: F23L5/04
Filed: 1925-04-22
Abstract: 253,156. Wilton, T. O., and Wilton, N. April 22, 1925. I Draught inducers. -In draught - inducing apparatus, particularly for furnaces, of the kind comprising a steam jet a delivering into a tapered tube b which is placed in front of a Venturi e, f, the internal diameter of the larger end of the tube b is about twice and the distance between the jet a and the outer end of the tube b approximately three times the internal diameter of the smaller end b<11>. The Venturi has its front part e shortened and the jet a and tube b are both rigidly mounted on a body portion b<1>, the former by means of an apertured disc c.
Patent GB-121220-A (GB)
Title: Improvements in and connected with Wireless Valves.
Inventor: BLUE CHARLES JAMES
IPC: H01J19/38
Filed: 1918-04-22
Abstract: 121,220. Blue, C. J. April 22, 1918. Vacuum tubes.-In a transmitting-valve for wireless signalling, the grid B is a pure copper helix integral with supporting-wires A and coiled in the reverse direction to the helical cathode filament D. A cylindrical electrode C surrounds the helices.
Patent GB-739351-A (GB)
Title: Improvements in or relating to bags and the like
IPC: A45C3/04
Filed: 1954-01-23
Abstract: 739,351. Bags. GAISIE, A. March 25, 1954 [Jan. 23, 1954], No. 2084/54. Class 133. In a holdall &c. having panels 10, 11 of flexible material and provided with piping along the edges of the panels, the piping consists of a length of helically wound wire 18 enclosed in a sheath 19 of leather &c. The sheath is formed from a strip. whose free ends are sewn together to provide a tongue 20 which is introduced between the panels during the sewing thereof.
Patent GB-980808-A (GB)
Title: Improvements in or relating to the manufacture of polystyrene articles
Inventor: READE EDWARD TRAVERS
IPC: B29C48/00
Filed: 1963-01-17
Abstract: 980,808. Moulding polystyrene. PLASTIC COMPOUNDS Ltd. Jan. 9, 1964 [Jan. 17, 1963], No. 2101/63. Heading B5A. A method of producing a polystyrene article comprises the steps of positioning a sheet of extruded polystyrene veneer within a die cavity, introducing steam under pressure into said cavity thereby causing said veneer to expand so as to fill said cavity, and removing the shaped article from said cavity. The invention is described with respect to the production of tiles having smooth surfaces of which the upper one may be ornamented or embossed.
Patent GB-926812-A (GB)
Title: Rotary cut-off machine
IPC: B23Q1/54
Filed: 1962-01-20
Abstract: 926,812. Sawing. R. G. BROWNSTEIN. Jan. 20, 1962, No. 2159/62. Class 145. An annular saw 22 with internal cutting teeth 25 is secured in a carrier 21 which is rotatable on an eccentrically-disposed head 19 of a spindle 18 and the spindle 18 is itself rotatably mounted in a sleeve 16 in a position eccentric to the axis of the sleeve. The cutter carrier 21 is rotated by a motor 30 through a multiple-belt drive 27 tensioned by pulleys 35, 36 on a spring-loaded lever 32 and the sleeve 16 and spindle 18 are driven by a separate motor 38 through gearing incorporating a differential gear 60 and a variable-speed transmission 45 adjustable by a shaft 51. The gear 48 on the transmission output meshes with an external gear 55 on the sleeve 16 and, through an idler 64 as shown in Fig. 6, the gear 55 drives the input gear 62 of the differential 60 and the output gear 63 drives a gear 58 having internal teeth 59 which drive a gear 56 on the spindle 18; alternatively, as shown in Fig. 2, the idler gear 64 may be disposed between the gear 48 and the gears 55, 62. A control shaft 61 for the carrier of the differential has a worm wheel 66 meshing with a worm 67 on a rotatably and slidably mounted feed shaft 68 and a pivoted latch 74 has engaging a collar 73 on the shaft to hold it against axial movement. The work 82 is held in a tubular support 86 and lubricant is supplied to the saw by a nozzle 89 connected to a pump 91 which draws from a sump 93 formed in the lower portion of a hood 92. With the motor 38 running and the control shaft 61 of the differential locked by the feed shaft 68, the sleeve 16 and spindle 18 rotate as a unit in the same direction about the axis of the sleeve 16. By rotating the shaft 68 with the latch 74 in locking position, the worm 66 rotates the control shaft 61 and thus the carrier of the differential so that the speeds of the input and output gears 62, 63 are varied from each other, resulting in moving the spindle 18 with respect to the sleeve. This movement is about the axis of the spindle 18 and, because the head 19 is eccentric, the saw is moved into the work while still rotating about the axis of the sleeve and also about its own axis. The feeding operation may be continued by rotating the shaft 68 or the latch 74 may be unlocked and fluid pressure supplied to a cylinder 69 which moves the feed shaft axially and, with the worm 66 acting as a rack, rotates the control shaft to apply a continuous feed to the saw.
Patent GB-343703-A (GB)
Title: Improvements in and in the manufacture of weft forks for looms
IPC: D03J1/00
Filed: 1930-01-22
Abstract: 343,703. Loom weft forks. PAYTON, T. W., 966, Manchester Road, Casleton, near Manchester. Jan. 22, 1930, No. 3166. [Class 142 (i).] Weft forks are produced from a block a formed of steel rod, a steel casting, or malleable iron having grooves a<2> and preferably provided with a ledge a<1> perforated to receive steel wires forming the tines and the tail of the fork. A piece of the wire is doubled, bent at right-angles, passed through the holes in the ledge, and laid in the grooves a<2> to form two of the prongs and the tail, a separate short length of wire bent at right-angles forming the third prong. The metal of the block is then pressed or heeled over the wires in the grooves to secure them in place, or the wires are welded to the block.
Patent GB-1138391-A (GB)
Title: Method of producing shaped articles
Inventor: BATEMAN BRENDA
IPC: B29C43/12
Filed: 1966-01-18
Abstract: 1,138,391. Drawing sheet material. SMITH & NEPHEW PLASTICS Ltd. 11 Jan., 1967 [18 Jan., 1966], No. 2212/66. Heading B5A. [Also in Division A3] Reticulated hollow articles are formed by clamping a discrete area of an embossed sheet material of the type which opens out into a net under tension, and then deep drawing that area. The drawing may be performed by a male former, by an inflatable balloon or by a pressure fluid acting through the agency of a diaphragm. In the embodiment shown in the figure, a peaked cap (see Fig. 3, not shown) is made by clamping an elastic membrane 10 and the sheet material 2 to be drawn over a pressure gas chamber 12 by a template 6 having the required shaped aperture therein. The whole is then heated in an oven and a pressure gas introduced into chamber 12 to free form the membrane and the sheet through the aperture to desired shape. The assembly is subsequently dismantled.
Patent GB-455706-A (GB)
Title: Improvements in or relating to incandescent electric lamps and electric discharge tubes
IPC: H01K1/24
Filed: 1935-01-23
Abstract: 455,706. Discharge lamps. DEZSO, Z., 59, Mansfield Road, and ISMAY & SONS, Ltd., J., Roden Street Works, both in Ilford, Essex. Jan. 23, 1935, No. 2293. [Class 39 (i)] [See also Group XI] In an electric incandescent lamp or discharge tube of the type having a relatively long tubular envelope, and filaments or electrodes extending along the length of the tube, an intermediate support for a filament or electrode comprises the whole or a part of an annular ring of heat resisting and preferably insulating material, such as mica, located internally of, and touching the walls of, the tube ; one or more short sleeves of heat resisting and insulating material, such as steatite, passing into a small aperture in the ring, are formed with rounded ends and surround the filament or electrode. The discharge tube sign shown in Fig. 1 has two extended electrodes 12, 18, the electrode 12 carrying letters which glow during the discharge. The central support comprises a mica annulus 19 which fits the envelope, and through which pass the electrodes. As shown in detail in Fig. 6, two steatite sleeves 20, 22 with rounded ends surround the electrode where it passes through the member 19, and are held by a thin wire 21 of nickel fused to the electrode and bent down at each end. In a modification a single steatite sleeve is used. Additional spacers 23 comprise segments of an annulus and carry similar steatite sleeves. In addition a steatite bead 24 spaces the electrodes 18, 12 from one another. Portions of the electrode structure which are not required to glow are covered with opaque steatite sleeves 27, which have hemispherical ends convex at one end and concave at the other, to enable bends in the wire to be followed. Specification 410,581 is referred to.
Patent GB-1041945-A (GB)
Title: A low melting point glass
Inventor: IKEDA KOICHI
IPC: C03C3/145
Filed: 1965-01-19
Abstract: A low melting-point glass consists in per cent by weight of Tl2O, 1-65; PbO, 23.45-86.6; and B2O3, 2.63-20; with or without one or more other inorganic oxides. Softening points exemplified range from 224.0-411.5 DEG  C.
Patent GB-1325407-A (GB)
Title: Method of preparing and preserving stuffed pancakes
IPC: A21D15/02
Filed: 1972-01-18
Abstract: 1325407 Stuffed pancakes J LARZUL 18 Jan 1972 [20 Jan 1971] 2378/72 Addition to 1274133 Heading A2D A method of preparing and preserving stuffed pancakes comprises the method of claim 1 of Specification 1274133 except that instead of the pancakes being hermetically sealed and sterilised, they are preserved by freezing, dehydration, deep-freezing or lyophilization.
Patent GB-912896-A (GB)
Title: Improvements in or relating to aryl dihalogen-acetyl derivatives
Inventor: CAVALLINI GUIDO
IPC: C07C49/835
Filed: 1961-01-20
Abstract: The invention comprises compounds of the general formula <FORM:0912896/IV (b)/1> where A represents a single valence bond, an oxygen or sulphur atom or a sulphinyl, sulphonyl, methylene, ethylene, a ,b -diethylethylene, vinylene or a ,b  - diethyl-vinylene group; R represents a hydrogen or chlorine atom or a methyl, hydroxy, methoxy or COCHX2 group and X represents chlorine or bromine.  The compounds may be prepared by direct halogenation of the corresponding acetoxy compounds, preferably in a solvent such as acetic acid, chloroform, carbon tetrachloride or methylene chloride, or by a Friedel-Crafts reaction using a dihaloacetyl halide.  Extensive examples are given of the preparation of dichloro- and dibromo-acetyl compounds, mainly the 4 and 4,41-isomers.  The compounds have bacteriostatic activity.  4-biphenylylgyoxal is prepared by reacting 4-dichloroacetyl-biphenyl with sodium methoxide and acidifying the resulting 4-biphenylylglyoxal methyl acetal
Patent GB-991159-A (GB)
Title: Improvements in or relating to a flame-retardant polymer composition and process forpreparing same
IPC: C08K5/02
Filed: 1964-01-20
Abstract: A flame-retardant polymer composition comprises a polyolefin, an halogenated organic additive containing 50 to 80% halogen, a flame-retardant compound of a Group Va element and an organic pyrophosphate of formula <FORM:0991159/C3/1> wherein R and R1 are alkyl, aryl, haloalkyl or haloaryl radicals and n is from 1 to 3.  In examples, the compositions comprise materials selected from chlorinated paraffin, tetrabromophthalic anhydride, chlorendic anhydride, antimony trioxide, and propoxylated di-(butyl or phenyl) pyrophosphate, but other ingredients are listed.  Optional ingredients are clay, carbon black, and phthalocyanines.  Various electrical applications are specified.
Patent GB-725298-A (GB)
Title: An improved method of producing iron powder
IPC: B22F9/22
Filed: 1953-01-28
Abstract: Iron powder is produced by precipitating iron in the form of a hydrate sludge from an aqueous solution containing iron in the form or 2- or 3-valent ions by oxidation with air, separating, washing, and drying the sludge, and reducing the dried sludge to iron, the process being a cyclic one in which the separated solution is regenerated as to its iron content and again oxidized. Scrap iron may be dissolved in hydrochloric acid, the solution having a pH value of 4.5-6.8, and then treated by blowing with a vigorous current of air to precipitate the iron, mainly as ferric hydrate, the blowing being stopped when the pH value reaches 1.8-2.2.  The hydrogen evolved during the solution of the scrap may be used in the reduction process which consists in heating the dried sludge at temperatures from 400-1000 DEG  C. in hydrogen, the temperature used depending on the fineness of powder required. The reduction may be carried out in a series of steps with comminution of the powder between each step.
Patent GB-875209-A (GB)
Title: Preparation of sulphur halogen compound
Inventor: ROBERTS HUGH LEITHEAD
IPC: C01B17/46
Filed: 1959-01-23
Abstract: SF5Cl is prepared by reacting SF4 and ClF3 or ClF under substantially anhydrous conditions.  ClF may be produced by dissociation of ClF3 or by reacting Cl2 and ClF3.  The reaction may be effected at elevated temperature, e.g. 100-350 DEG C. or in the liquid phase at below 0 DEG C., and pressure may be atmospheric-3 atoms. or higher. Reaction may be in copper vessels up to 200 DEG C. or in nickel or stainless steel vessels.
Patent GB-466047-A (GB)
Title: Improvements in or relating to the projection of pictures with stereoscopic effect
IPC: G03B35/16
Filed: 1936-01-27
Abstract: 466,047. Stereoscopic kinematography. HUITT, L. H. Jan. 27, 1936, No. 2576. [Class 97 (i)] A device for viewing stereoscopic pictures projected in alternation on a screen comprises a spectacle frame in which each eyepiece carries a pair of shutters mounted on steel reeds adapted to be vibrated by electromagnets energized in synchronism with the projection so that the eyes are uncovered alternately and the left eye and right eye see only the projection of the " left eye" and " right eye pictures respectively. The spectacles comprise opaque members 6, 8 connected ,by a bridge 3 and having apertures 7, 71 closed alternately by pairs of shutters 13, 14 ; 15, 16 respectively carried on steel reeds 11, 12, 21, 22, vibrated by electromagnets 17, 18 &c. Each reed is tuned so that its natural frequency of vibration is the same at the frequency at which it will operate during projection and stops may be provided to limit the vibration. If desired each eyepiece may be enclosed in an exhausted casing to minimize noise. The magnets are connected as shown to a source 25, 33 of direct current and to a contact ring 30 having conducting sectors 29 connected to a slip ring 31 and carried on a shutter disc 34 having apertures 35 to permit alternate projection from two projectors 36, 37. The arrangement is such that when the " right eye " projector 36 is open the magnets 17, 18 are energized to uncover the right-eye aperture 7, and the other aperture is closed. In a modification the shutters may be substantially triangular in shape. The apparatus may also be used for viewing lantern slides projected in alternation.
Patent GB-802698-A (GB)
Title: Water separator
IPC: F24F3/14
Filed: 1956-01-26
Abstract: 802,698. Ventilating aircraft. UNITED AIRCRAFT CORPORATION. Jan. 26, 1956 [Feb. 17,1955], No. 2594/56. Class 137 [Also in Groups XII and XXIX] In air conditioning apparatus of the kind in which a compressor, e.g. of a jet turbine engine 10, delivers hot air through two parallel conduits 14, 16 the air in the conduit 14 being controlled by a valve 34 and the air in the conduit being cooled by a heat exchanger 22 and a turbine 26, is characterized in that a water separator 52, incorporated in the conduit 16 adjacent the cold air discharge from the cooling turbine 26, becomes effective when there is excess moisture in the cooled stream of air thus reducing the overall moisture content of the two air streams when they are mixed in a conduit 18 and fed to a cabin 20, the dew point remaining below the cabin temperature so that fogging &c. is prevented. The water separator 52, comprising a coalescer 66 in series with a collector 70, has a by-pass conduit 74, controlled by a valve 76. The latter is closed to cause a pressure rise in front of the separator sufficient to cause a temperature above freezing when the water content of the air is. above a predetermined amount, and opened at temperatures below freezing when the moisture content of the air is below a predetermined amount. Operating mechanism for the valve 76 comprises a pressure responsive bellows 78 which is connected to a duct 50 upstream of the water separator. An increase in the turbine pressure compresses a spring 80 in the bellows 78 which opens a valve 82 to bleed air through a conduit 84 from the chamber 86 of a servomotor 88 connected to a source of pressure, thus permitting a spring 90 therein to close the valve 76 and therefore the by-pass 74. A device 94 responsive to the ambient pressure urges closed a valve 96 in the pressure supply conduit to the servomotor 88 so that the spring 90 opens the valve 76. The cooling air for the heat exchanger 22 is introduced through a conduit 28 which may be supplied with warm air. After passing through the heat exchanger 22 the cooling air is led through a conduit 30 and a fan 32 driven by the turbine 26, and is delivered overboard through a conduit 35.