baber/WOPTO huggingface dataset:
Patent GB-534525-A (GB)
Title: Improvements in or relating to the oxidation of hydro-aromatic compounds
IPC: C07C51/31
Filed: 1939-07-04
Abstract: 534,525. Dicarboxylic acids. HENKEL & CIE, GES. July 4, 1939, No. 19475. Convention date, Sept. 20, 1938. [Class 2 (iii)] Hydro-aromatic compounds are oxidized to give dicarboxylic acids by means of oxygen or oxygen-containing gases at increased temperature in the presence of organic peroxides or ozone as catalysts, the latter being present in quantities of 0.1 per cent. or less referred to the quantity of oxygen employed. Examples of hydro-aromatic compounds which may be employed are cyclohexanol, cyclohexanone, methyl-cyclohexanols, methylcyclohexanones, cyclohexene, tetrahydro- and decahydronaphthalene and decahydro naphthols. Substitution products and products obtained from hydroxy compounds by separation of water may also be used, e.g. alkylcyclohexanols in which the alkyl group contains at least two carbon atoms such as 4-hexyl-cyclohexanol, a mixture of 4-sec. octyl, decyl-, dodecyl-, retradecyl-2-methyl cyclohexanols, 4-cyclohexyl-cyclohexanol, 4, 4<SP>1</SP>- dioxy-diclohexyl methane, 4, 4<SP>1</SP>-dioxy-2, 2<SP>1</SP>-dimethyl-cyclohexyl methane and propane and hydrogenized resins of the phenol-aldehyde class. Catalysts mentioned are aceto peroxide, benzoyl peroxide, ozone and the oxidation product obtained by adding ozone to the starting material. Application of increased pressure has a favourable effect. In the examples (1) cyclohexanol is oxidized with air in the presence of ozone to give mainly adipic acid with some succinic acid, glutaric acid and hydroxy and ketonic dicarboxylic acids ; (2) cyclohexanone is oxidized to give mainly adipic acid ; (3) methylcyclohexanol is oxidized by air in the presence of oxidized methylclytohexanol as catalyst to give chiefly methyl adipic acid.; (4) a mixture of cyclohexanol and cyclohexene is oxidized to give mainly adipic acid ; (5) rectrahydronaphthalene is oxidized in the presence.of ozone.
Patent GB-420495-A (GB)
Title: Improvements in and relating to reverse current electromagnetically released electric switches
IPC: H02H3/18
Filed: 1934-07-02
Abstract: 420,495. Electromagnetic switches and automatic circuit-breakers. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. July 2, 1934, No. 19494. Convention date, July 1, 1933. [Class 38 (v)] A reverse current release for a D.C. circuitbreaker comprising a voltage and a current coil mounted on a core to which an armature is attracted during normal conditions and released to open the circuit when the current reverses has a non-inductive resistance connected across the current coil to prevent the armature from being incorrectly retained in the attracted position with rapid current reversals. As shown in Fig. 2, the core 3 carries a voltage winding 4 and a current winding 5, the latter being shunted by a predominantly ohmic resistance 7. The armature 8 is normally attracted to the core 3 holding the switch 1 closed against a spring. With a rapid reversal of current, owing to the inductance of the winding 5, the majority of the current passes through the resistance 5 so ensuring the release of the armature and the opening of the switch 1. The voltage coil circuit including a series resistance 6 is completed at contacts 2 controlled by the switch 1. The resistance 7 (Fig. 3) comprises a pair of socket contact pieces 11 which can be clipped on conductors 12 and are connected by flat pieces 13 of resistance material such as constantan or nickeline. The resistance may be varied by sliding a bridging member 14, which is afterwards clamped in position.
Patent GB-1082264-A (GB)
Title: Improvements in or relating to electric hoists
Inventor: MIDOL ANDRE CLEMENT
IPC: B66D3/18
Filed: 1965-05-08
Abstract: 1,082,264. Electric hoists; self-sustaining gear. BIRFIELD ENGINEERING Ltd. Sept. 17, 1965 [May 8, 1965], No. 19500/65. Heading B8B. In an electric hoist having the drive motor 17, Fig. 1, and rope drum 27 mounted on opposite sides of the runway beam 11 and drivingly connected by pulley belts 24, an anti-runback safety device 50 is adapted to operate in the event of a failure in the belt drive. The belts 24 normally support a loaded roller 53 on a double arm lever 51, 54 which engages in a notch 47 in an annulus (44) (Fig. 3, not shown) rotating with the pulley 23. An adjustable friction coupling 42 is provided between the annulus 44 and pulley 23 for smooth operation.
Patent GB-659260-A (GB)
Title: Improvements in refractory bricks having a high heat conductivity
IPC: C04B35/63
Filed: 1949-07-25
Abstract: A refractory brick comprises a skeleton of silicon carbide embedded in a non-oxidizing ceramic mass of chromite and/or magnesite, and water-glass, preferably acid water glass containing substantially 75 per cent by weight of silica.  In an example, the silicon carbide comprises 75 to 80 per cent by weight of the brick.
Patent GB-812715-A (GB)
Title: Bladed rotors for compressors, turbines and like fluid flow machines
Inventor: WHITEHEAD LESLIE THOMAS
IPC: F01D5/06
Filed: 1956-06-25
Abstract: 812,715. Securing together rotor parts. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. May 24, 1957 [June 25, 1956], No. 19574/56. Class 80 (2). [Also in Group XXVI] A turbine or compressor rotor comprises axially adjacent rotor elements having axially extending flanges on their adjacent sides which are connected by means of a ring axially overlapping and in shrunk engagement with the flanges, the engaging surfaces of the flanges and the ring being formed with circumferentiallyextending, interengaging serrations. The serrations may either be simple circumferential grooves or interengaging screw threads. The axial-flow compressor rotor shown comprises a series of sheet metal discs 1 each having a T- section forged ring 2, the web 2a of which is secured as by spot welding to the disc. The flange of each T-section ring 2 has a central thickened portion which is formed with grooves in which the roots of the rotor blades 3 are mounted. The ends 2b of the flanges 2 are screwthreaded on their external surfaces and interconnecting rings 4 are formed with corresponding internal screw threads on their internal surfaces. To assemble the rotor, the rings 4 are heated and then screwed on to the adjacent surfaces of a pair of rings 2. The rotor stub shaft 5 is secured to a dished sheet metal disc 6 which has an angle section ring 7 secured at its periphery, the flange 7b being internally screwed and secured by screwing and shrinking on to the end 2b of the adjacent flange 2. Specifications 728,754, 748,903 and 763,261, [both in Group XXVI], are referred to.
Patent GB-613990-A (GB)
Title: Improvements in or relating to graduated strips and the manufacture thereof
IPC: G01B3/00
Filed: 1945-07-31
Abstract: 613,990. Measuring tapes. KEUFFEL & ESSER CO. July 31, 1945, No. 19606. Convention date, June 28, 1944. [Class 106 (ii)] A measuring tape.comprises a strip of metal having on its surface an indicia area and a background area, one of said areas being coloured while the other area is tin electroplated. A strip of cold-rolled spring carbon steel, Figs. 1, 3, which has been cleaned, is given a black oxide coating 22 by passing the strip through a concentrated alkaline solution containing an oxidizing agent. The markings 24 are now printed on the strip using an ink which is resistive to the tin electroplating to which the strip is now subject. A layer 26 of tin is thus obtained. A coat of transparent varnish 28 is then put on the strip. In another embodiment, not shown, the printing ink is removed after electroplating and the visible parts of the black oxide layer form the indicia markings. If desired, the ink can be applied directly to the metal and be of such a nature as to attack and colour the surface thereof so that when the ink is removed, purposely or by wear, the coloured surface of the metal forms the indicia markings.
Patent GB-223986-A (GB)
Title: Improvements in or relating to hollow refractory containers
IPC: C04B35/52
Filed: 1923-07-31
Abstract: 223,986. Wade, H., (Vesuvius Crucible Co.). July 31, 1923. Refractory substances containing graphite, clay, &c.-Hollow refractory containers are made from a composition containing graphite in excess of 15 per cent, and a ceramic bond also in excess of 15 per cent, and are burnt at a temperature exceeding 2000‹ F. to vitrify the bond. According to an example, 15-65 parts of graphite, 15-50 parts of clay and 5-15 parts of siliceous material are mixed and burnt until the bond is vitrified (at least 2000‹ F.). Other refractory materials, as alumina, silicon carbide, zirconia may be employed in addition. Fluxes such as dolomite, or magnesite may be added and on burning produce a glaze on the articles.
Patent GB-1316569-A (GB)
Title: Watch cases
IPC: G04B37/00
Filed: 1971-06-09
Abstract: 1316569 Watches A SCHOLLER and E BANDELIER 9 June 1971 [9 June 1970] 19637/71 Heading G3T In order to prevent removal of a back cover 7 of a watch case by unauthorised persons, the cover 7 is provided with a recess 9 for engagement by a cover removing tool, and the recess is normally blocked by a plug 10 having a cap 15 of breakable material whereby the cap must be at least partially destroyed in order to remove the plug 10. The plug 10 is retained by an O-ring 13 and is provided with a threaded bore 14 to facilitate its removal. The cap 15 is of mineral glass, but organic or synthetic glass or plastics may be used. The material of the cap and/or the plug body 11 may be modified to permit their authenticity to be checked by analysis. Removal of watch glass 2  without removal of the cover 7 is prevented by a bevel 6 on the glass. In an alternative embodiment the lip of a resilient synthetic cap 18, Fig.3 (not shown) is provided with a shallow head (19) which becomes pressed into a peripheral groove (20) on the plug body when the plug is force-fitted in the recess 9.
Patent GB-404639-A (GB)
Title: Improvements in brake mechanism for vehicles and the like
IPC: B60T13/24
Filed: 1932-07-12
Abstract: 404,639. Fluid-pressure brakes. JOHNSON, M. E., and FEENY & JOHNSON, Ltd., 134, Ealing Road, Wembley, Middlesex. July 12, 1932, No. 19688. [Class 103 (i).] Brake-operating vacuum bellows a is movably supported at one end by the valve casing c connected to the brake pedal h<1> and at the other by a lever k mounted on a fixed fulcrum k<2> and connected by a pivot k<1> and a rod l to the brakes. The valve d is connected by a rod j to the pivot kl. A spring o normally holds the valve d closed. Operation of the pedal h<1> opens the valve d connecting the vehicle induction pipe e to the bellows a and restricts the atmospheric port f<1> by a collar d<1> and manual effort is also transmitted by means of the valve casing and rods j, l. The movement of the lever k and rods j, l, by the bellows tends to reclose the valve d and reduce the vacuum braking. The valve d may be connected to the brake pedal and the casing c to the rod j. The end a<1> of the bellows may be supported on the rod j. The bellows may be in constant communication with the suction. The invention may be used with brakes operated by fluid under pressure.
Patent GB-613786-A (GB)
Title: Improvements in and relating to coupling for beaded pipe or tubing
IPC: F16L27/113
Filed: 1946-07-03
Abstract: 613,786. Sealing gaskets. DRESSER INDUSTRIES, Inc. July 3, 1946, No. 19873. Convention date, July 4, 1945. [Class 122 (iii)] [Also in Group XXVIII] A sealing gasket, for use in a joint for beaded pipe ends, comprises a rubber or like resilient ring 19, Fig. 1, having an internal annular groove 21 and fitted at one end with an expansible metallic ring 22 both rings preferably being formed as an unitary structure. The ring 22 shown is an annular armour helix which is moulded into the rubber composition of the gasket. The other end of the gasket may have a ring 23 similar to but smaller in crosssection than ring 22. Fig. 4 shows a modification in which the gasket is wedge-shaped. The metal ring in either case may be a split or sectional ring and may be separate from the rubber ring.
Patent GB-1248119-A (GB)
Title: Improvements in or relating to gear trains
Inventor: HICKS RAYMOND JOHN
IPC: F16H57/02
Filed: 1969-04-18
Abstract: 1,248,119. Toothed gearing. VICKERS Ltd. 1 April, 1970 [18 April, 1969], No. 19893/69. Heading F2Q. An epicyclic gear comprises floating planets 3 meshing an input sun 2 on a driving shaft 1, an output ring gear 15, and reaction ring gears 11 resiliently mounted on flexible radial arms 10 held at their inner ends between axial fingers 8 of fixed members 9. The number of teeth on gear 15 differs from the number on the gears 11. Resilient rings 5 urge the planets radially outwards. End plates 6 bolted to the fingers 8 axially locate the planets.
Patent GB-218133-A (GB)
Title: An improved machinery belt fastener
IPC: F16G3/00
Filed: 1923-08-03
Abstract: 218,133. Tapp, J., and Knight, W. E. S. Aug. 3, 1923. Buckles. - The sliding members 3, 4 of a buckle by which the ends of a machine belt are connected are formed with eyes 3<A>, 4<A>, which completely encircle the sides 1<c>, 1<D> of the buckle frame on which they slide. The central portions of the members 3, 4 between the eyes lie in the plane of the end bars 1<A>, 1<B> of the frame. Specifications 2169/78, 7018/84, and 20335/00 are referred to.
Patent GB-721204-A (GB)
Title: Improvements in and relating to the electrolytic deposition of metals
IPC: C25D3/02
Filed: 1951-08-24
Abstract: 721,204. Electrodeposition of metals. DEUTSCHE HYDRIERWERKE AKT.-GES. Aug. 24, 1951 [Sept. 11, 1950 ; Oct. 30, 1950], No. 19966/51. Class 41. In a process for the electrolytic deposition of metals, organic disulphimides or their watersoluble salts are added to the usual metal salt baths before or during electrolysis. There may also be added to the baths wetting agents stable to heavy metal salts and cation-active compounds which dissociate in aqueous solution to give cations containing at least six carbon atoms. The organic disulphimides are compounds of the general formula R-SO 2 -NHSO 2 R<SP>1</SP> in which the hydrogen atom can be replaced by an alkali metal atom or another cation conferring solubility in water. The radicals R and R<SP>1</SP> each represent an aliphatic, cyclo-aliphatic, or aromatic radical, or a mixed type of these radicals, preferably an alkyl substituted aryl radical. Examples of organic disulphimides are di-p-tolyl disulphimide, dioctylphenyl disulphimide, didodecylphenyl disulphimide, di-octyl disulphimide, p-tolyloctyl disulphimide, p-tolyldodecyl disulphimide, dicyclohexyl disulphimide, dinaphthenyl disulphimide and dibenzyl disulphimide. Examples of wetting agents are water-soluble salts of acid alkyl sulphuric acid esters (fatty alcohol sulphonates), of alkyl sulphonic acids and of alkyl aryl sulphonic acids or the corresponding sulphuric acids. The preferred cation-active compounds have a lipophilic character containing aliphatic, cycloaliphatic, aliphatic-aromatic or cycloaliphatic-aromatic hydrocarbon radicals having at least six carbon atoms and which are surface active, so-called cation soaps, e.g. quaternary nitrogen compounds. Compounds which dissociate in aqueous solution to give cations of a resin-like character may be obtained by condensing oxo compounds such as formaldehyde or acetone, and compounds capable of condensation, containing amino salt groups, e.g. salts of guanidine or dicyandiamidine. The process is stated to improve electrodeposition of metals such as zinc, copper, nickel, tin and brass alloy. For nickel coating small amounts of zinc, cadmium and cobalt salts may be added to the bath. Two examples of nickel-plating baths are given, one including the sodium salt of di-p-tolyl sulphimide and the other including sodium dodecyl sulphate, sodium di-p-tolyl sulphimide and lauryl pyridinium sulphate.
Patent GB-1073849-A (GB)
Title: New derivatives of octa-2,7-diene
Inventor: OTTO INGEBORG
IPC: C07C45/62
Filed: 1966-05-05
Abstract: Novel ketones of the formula <FORM:1073849/C2/1> wherein R1 is alkylcarbonyl and R2 and R3 are respectively isopropenyl and vinyl or isopropyl and ethyl are prepared by reacting 2,6-dimethylocta-2,7-diene with an acid anhydride in the presence of a catalytic amount of a Friedel-Crafts catalyst and, if desired, hydrogenating at a temperature of about90 DEG  C.  The preferred groups R1 are acetyl and propionyl, and the preferred Friedel-Crafts catalyst is ZnCl2.  The hydrogenation is preferably carried out in the presence of a nickel catalyst.
Patent GB-531896-A (GB)
Title: Improvements in or relating to garment hangers
IPC: A47G25/48
Filed: 1939-07-10
Abstract: 531,896. Garment hangers. SPIRA, L. I. July 10, 1939, Nos. 20037 and 20532. [Class 52 (v) ] The gripping bars 1 are carried by two pairs of arms 2, 3, 2a, 3a, hinged together and, as shown, provided with a clip 4 for closing the arms and also with rings &c. 7 which in the closing position are located near to the gripping bars 1 and lock them. The rings 7 may be interconnected by a rod 8.
Patent GB-358546-A (GB)
Title: Improvements in and relating to hydraulic coal and ore washing and separating machines
IPC: B03B5/62
Filed: 1930-07-02
Abstract: 358,546. Washing and concentrating coal and ores. RICHARDS, C. F., 411, Erie Street, White Haven, Pennsylvania, U.S.A. July 2, 1930, No. 20097. [Class 82 (ii).] In apparatus for washing and concentrating coal and ores the material is fed from a shoot on to the upper surface of a rotary separating screen disposed in a fluid trough, the separation being effected by jets of water passed up through the screen. The material is fed down a shoot 13 and over an angular lip 14 adjustable by a hand-wheel 16 on to the upper surface of a rotary screen 41 disposed in a fluid trough 2. A casing 44 circumferentially adjustable by means of bolts 45 in slots 46 surrounds the bottom and sides of the screen and water is passed to the interior of the screen from a valved pipe 47 and issues in jets through the perforations on the top of the screen to separate the material delivered from the lip 14. The screen is rotated by belt drive 11 from a driven shaft 10 which also drives a conveyer 7 which removes heavy material which falls to the bottom of the trough 2, the speed of rotation of the screen being controlled by variable speed gearing 12. The quantity of material delivered to the screen is controlled by a gate 18 in the shoot 13 connected through a shaft 19 and lever 23 to a bell-crank lever 21 carrying an adjustable weight 24 on its horizontal arm. The horizontal arm is connected by levers 25, 26 to a gate 27 controlling the discharge of the heavy materials from the screen to the bottom of the trough 2. The gate 27 acts against a wall 28 over the top of which the lighter material is forced by the action of the water jets on to a floor 29, the height of the discharge level being controlled by a sliding gate 30 lying against the wall 28 and controlled by a hand-wheel 33. The floor 29 is provided with a divider 35 of inverted V-shape to direct the lighter material to the sides of the trough and through adjustable gates 37 to discharge shoots 40. In a modification, Fig. 5, there is no mechanical connection between the gate controlling the feed and that controlling the discharge of heavy material from the screen, the gate 18 being connected to a shaft 19 carrying a lever 56 with adjustable weight 57 and the discharge for the heavy material consisting of a gate 50 on a shaft 51 controlled by a hand-lever 52. Several separating troughs may be connected in series, the light material from one being passed to the next for further treatment, the heavy material being discharged from the trough through a rotary valve 54 operatively connected to the shaft 42 driving the rotary screen. The screen may have groups of openings 55 followed by imperforate areas so that the jets are intermittent.
Patent GB-147359-A (GB)
Title: Improvements in darts for playing games
IPC: F42B6/00
Filed: 1919-08-16
Abstract: 147,359. Taylor, A. Aug. 16, 1919. Flying toys.-Relates to darts used for throwing at dart boards. According to the invention, the steel point b is secured by casting molten metal c into a transverse hole in the wooden body a, so that, when it solidifies, it engages a notch b<1> in the point b and also serves to load the dart. The " feathers " d may consist of thin sheet indiarubber fixed to an india-rubber tube, which is slipped on to the tail of the dart, or they may consist of a tuft of wool secured by a thread passing through a hole in the tail of the dart.
Patent GB-153962-A (GB)
Title: Improvements in water heaters
IPC: F24H9/20
Filed: 1919-08-16
Abstract: 153,962. Hargreaves, H. Aug. 16, 1919. Internally-fired boilers; water supply and delivery.-A waterheater giving a continuous supply of boiling water has two central pans forming a boiling- chamber and a collecting- chamber, water being forced from the boiling-chamber into the collecting-chamber by the pressure of the steam generated. Water boiled in the space c<x> between two concentric pans b, c is forced up a pipe f projecting from the bottom of the space and overflows into the inner pan, from which it may be drawn off through a cock g<1>. A float d<1> in a chamber d in communication with the boiling-chamber operates a sliding valve h<5> controlling the feedsupply. The feed passes down a pipe h<10> and flows into a hollow water casing i, from which it passes into the top of the boiling-chamber. The gas supply to the burner is controlled by two floats k<1>, k<2> in a chamber k in communication with the boiling-chamber through a pipe k<x>. When the water is at its normal level, the lower float is held beneath a partition k<4> fixed across the float chamber, and a spindle k<3> attached to the float so engages beneath a plate k<6> on the valveoperating link k<7> as to maintain the valve in its open position. When the water-level rises above a certain point, the upper float engages with the plate and lifts the link, thus closing the valve. The valve spindle l<2> carries two metal segments l<4>, between which is clamped a sheet l<6> of paper or other suitable material moving across the gas passage. An aperture l<10> in the sheet allows the full quantity of gas to pass, a narrow slit l<11> allows sufficient to pass to maintain the water at the boiling point, and a small hole l<12> allows a small quantity to pass to a pilot light.
Patent GB-205056-A (GB)
Title: Wheel skate
IPC: A63C17/08
Filed: 1923-08-08
Abstract: 205,056. Leblanc, F. Oct. 3, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Skates. - An upright c secured to a skater's leg, as by means of a grooved piece d and straps, carries a plate a for the foot on a pivot b. A wheel g, preferably having a tyre h, is secured on a spindle f on the upright c, the spindle being preferablv about the height of the ankle above the plate a. A brake k is provided.
Patent GB-1223522-A (GB)
Title: Thermoplastic moulding compositions from polyacetals and process for their manufacture
IPC: C08L59/00
Filed: 1969-04-21
Abstract: 1,223,522. Polyacetal compositions. FARBWERKE HOEOHST A.G. 21 April, 1969 [20 April, 1968], No. 20212/69. Heading C3P. Thermoplastic moulding compositions comprise (1) 80-99À5% by weight of (a) homopolymer of formaldehyde or trioxane or (b) copolymer of 80-99À9% by weight of trioxane and 0À1-20% by weight of a cyclic ether or a cyclic acetal and (2) 0À5-20% by weight of (a) copolymer of 0À5-80% by weight of trioxane and 20-99À5% by weight of 1,3 - dioxolane or (b) poly - 1,3 - dioxolane. The cyclic compound copolymerized with trioxane to give component (1) may be wherein R 1  and R 2  may be identical or different and are hydrogen or C 1-5  alkyl radicals optionally substituted by 1-3 halogen atoms and n is an integer from 1-4; or wherein R 4 , R 5  and R 6  may be identical or different and are hydrogen, phenyl, C 1-5  alkyl optionally substituted by 1-3 halogens and X is zero or an integer from 1 to 6. The compositions may also contain stabilizers against heat, light and oxygen, e.g.: polyamides, amides of polybasic carboxylic acids, amidines, hydrazines, ureas, poly - N - vinyl lactams and α - hydroxy - benzophenone. The compositions are formed by mixing the components at 150- 250‹ C. and homogenizing the mixture.