baber/WOPTO huggingface dataset:
Patent GB-1150988-A (GB)
Title: Chlorination Process.
Inventor: BAIRD ROBERT MARTIN
IPC: C07C17/10
Filed: 1967-05-11
Abstract: 1,150,988. Chlorination process. E. I. DU PONT DE NEMOURS & CO. 11 May, 1967 [11 May, 1966], No. 21991/67. Heading C2C. A partial chlorination process comprises providing a feed mixture which initially consists essentially of chlorine plus a partially chlorinated methane starting material comprising methyl chloride and/or methylene chloride, the mol. ratio of chlorine to partially chlorinated methane in said mixture being in the range 1 : 3 to 1 : 12, the pressure on said mixture being at least 65 atmospheres (absolute), and the pre-heat temperature of said mixture being in the range 120-230 C. but not beyond the temperature range within which the reaction mixture exhibits a heat capacity of at least 30 pound-centrigrade units per pound-mol. per C.; causing the chlorination reaction to proceed under substantially adiabatic conditions and at a pressure of at least 65 atmospheres (absolute); the combination of (a) the composition of the partially chlorinated methane starting material, plus (b) the mol. ratio of chlorine to partially chlorinated methane, plus (c) the pre-heat temperature being such that the exothermic heat of reaction causes the temperature to rise adiabatically at least 20 C. and through a temperature range in which the mixture exhibits a heat capacity of at least 30 pound-centrigrade units per pound-mol. per C., and up to a maximum reaction temperature not higher than 450 C., at which maximum temperature essentially all of the chlorine has been reacted; and thereupon separating out a partially chlorinated methane product which contains a higher proportion of combined chlorine than the partially chlorinated methane starting material and which comprises methylene chloride and/or chloroform. The starting material preferably contains at least 30% by weight of each of methyl chloride and methylene chloride and it may also contain chloroform in an amount less than 10% by weight. Some carbon tetrachloride may be obtained during the process.
Patent GB-249403-A (GB)
Title: Improvements in or relating to electrodes for thermionic valves and the like
IPC: H01J19/28
Filed: 1925-09-03
Abstract: 249,403. Emerson, A. Sept. 3, 1925. Vacuum tubes. - An anode or other electrode for a thermionic valve is made by assembling two plates, each formed with vertical channels e and horizontal strengthening ribs d, so that each pair of channels forms a socket for a support f. The edges of the plates are welded together, and the central portions c are so shaped that the electrode encloses a rectangular space. The supports may be welded in the sockets.
Patent GB-529502-A (GB)
Title: Mechanism for the advancement of the carriage of typewriters and like machines
IPC: B41J19/32
Filed: 1939-07-31
Abstract: 529,502. Typewriters. GEIRNAERT, R. L. R. R. July 31, 1939, No. 22125. Convention date, August 9, 1938. Addition to 482,616. [Class 100 (iv)] Letter-spacing mechanism. The fixed brake 60, 61, Fig. 2, and differentially-movable brake 34 forming part of the escapement described in the parent Specification are moved into and out of engagement with the rail 66 on the carriage by means of two levers operated by a single rod. In the preferred arrangement, a rod 11, operated by the universal frame 1, is provided with a head 246 carrying two pairs 247, 247<SP>1</SP> of screws which co-operate with levers 265, 249 provided with wedges 59, 33 for controlling the brake 60, 61 and the brake 34 respectively. The lever 265 is pivoted on the framework 253, and the lever 249 is pivoted on the slide 32 carrying the brake 34. The slide 32 is moved differentially by means of a bell-crank 259 which engages pins 261, 257 on a part 255 of the slide, and a rod 38 operated by the universal frame 2.
Patent GB-1191301-A (GB)
Title: Improvements in Prosthetic Supports
IPC: A61F2/72
Filed: 1967-05-12
Abstract: 1,191,301. Prostheses. H. KOHLER and H. MAY [trading as VIENNA-TONE HORGERATE ING. KOHLER und ING. MAY OHG.] 12 May, 1967 [13 May, 1966], No. 22203/67. Heading A5R. A support for a prosthesis and arraniged for detecting miyoelectric potentials used to control an artificial limb comprises a member 2 adapted to be attached to the body of the user and formed with two openings 3 which slidably receive electrodes 4, there being an electrode holder 5 releasably secured to the member 2 so that it engages the electrodes and in use, maintains the electrodes in contact with the body of the user. The member 2 may comprise the socket of an artificial limb secured to the user by straps &c. and the electrode holder, cf a. thermoplastic material so that. it may be softened and shaped as required, may be secured to the member 2 by a (press stud arrangement 7, 8. In an embodiment (Figure 3, not shown) the electrode bolder is in the form of a leaf spring which bears upon the electrodes.
Patent GB-772109-A (GB)
Title: Unsaturated polyfluorinated organic compounds
IPC: C07C57/52
Filed: 1952-09-03
Abstract: The invention comprises compounds of the general formula RFCH=CHX where RF is a poly-halogenohydrocarbon group having at least two fluorine atoms on the carbon atom nearest the olefinic bond, and X is fluorine, cyano, or a primary or secondary amine radical.  RF may be perfluoroalkyl, preferably containing not more than 20 carbon atoms, perfluorocycloalkyl, preferably containing not more than 6 carbon atoms in the ring, or a perfluoroaromatic group such as perfluorophenyl.  X may be R1R2N, where R1 and R2 are alkyl, halogenoalkyl, cycloalkyl, halogenocycloalkyl, phenyl halogenophenyl, or homologues of the last two groups; R1 or R2 may be hydrogen.  The compounds may be prepared by addition reactions between a compound of general formula RFC­CH and a compound of formula HX.  When HX is hydrogen fluoride the reaction may be carried out in the presence of boron trifluoride, and, when HX is hydrogen cyanide or an amine, in the presence of a copper salt such as cuprous chloride.  Examples describe the reaction of trifluoromethylacetylene with (1) hydrogen fluoride to obtain 1,3,3,3-tetrafluoropropene; (2) hydrogen cyanide to obtain g ,g ,g -trifluorocrotonitrile; (3) diethylamine to obtain 1-diethylamino-3,3,3-trifluoropropene.  Other compounds mentioned are <FORM:0772109/IV(b)/1> and corresponding compounds where F is replaced by CN, -NHCH3, N(CH3)2, NHC2H5, N(C2H5)2.  Other amine compounds are given. Specification 772,110 is referred to.
Patent GB-1222547-A (GB)
Title: Graft copolymers from oxymethylene polymers and process for their manufacture
IPC: C08F283/06
Filed: 1968-05-10
Abstract: 1,222,547. Grafted polyoxymethylenes. FARBWERKE HOECHST A.G. 10 May, 1968 [10 May, 1967], No. 22273/68. Heading C3G. A graft polymer is prepared by the free radical polymerization of a homogeneous mixture of an ethylenically unsaturated monomer and a homopolymer of formaldehyde or trioxane or a copolymer of formaldehyde or trioxane with one or more cyclic ethers or acetals. Exemplified monomers are vinyl acetate, methyl methacrylate, styrene and N-vinyl pyrrolidone. The base polymer may have been previously treated, e.g. by esterification of terminal hydroxy groups with acetic anhydride.
Patent GB-372186-A (GB)
Title: An improved water cooled film track carrier for cinematograph projectors
IPC: G03B21/16
Filed: 1931-08-06
Abstract: 372,186. Kinematograph projectors. DEHN, F. B., 103, Kingsway, London.- (Zeiss Ikon Akt.-Ges.; 72, Schandauer. strasse, Dresden, Germany.) Aug. 6, 1931, No. 22336. [Class 97 (i).] The film track of a projector is secured to a hollow carrier through which cooling water circulates. The carrier 2 may have a water space 4 of U shape surrounding the film aperture 3, and flow and return pipes 5, 6 may pass to it from within the casing 1 containing the driving mechanism.
Patent GB-444736-A (GB)
Title: Improvements in and relating to electric toasting devices
IPC: A47J37/08
Filed: 1935-08-07
Abstract: 444,736. Thermostats. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Aug. 7, 1935, No. 22337. Convention date, Aug. 8, 1934. [Class 64 (ii)] [See also Groups VI, XI, and XXXVII] In an electric toaster, a timing mechanism is provided for regulating the duration of cooking, which depends upon the extent of the winding-movement imparted to a winding - lever 85 which is determined by an abutment which is set automatically by thermally operated means, so that a lesser movement is permitted when the toaster is hot than when it is cold. The said means comprise a metallic bellows 95, the end of which determines the position of a pivoted stop 94 in the path of the lever 85. The stop is kept against the bellows by a spring 96. The bellows are connected by a pipe 98 to a bulb 99, the whole being filled with a fluid, e.g. pea-nut oil. The bulb, as shown, is positioned on the middle line at the rear of the toaster, but may be otherwise situated, e.g. beneath one of the trays 64.
Patent GB-637398-A (GB)
Title: Improvements in or relating to purification, fusion and casting of metals and alloys
IPC: C22B9/00
Filed: 1947-08-12
Abstract: 637,398. Melting and refining metals and alloys. LEPP, H. Aug. 12, 1947, No. 22445. Convention date, March 27. [Classes 72 and 82(i)] [Also in Group XXII] A process for the purification, fusion and casting of metals and alloys comprises melting the metal or alloy in a closed receptacle in an atmosphere of gas containing carbon dioxide and substantially free from oxygen, hydrogen, water, hydrocarbons, sulphides and hydrosulphides, the said gas being continuously passed over or through the molten metal or alloy at superatmospheric pressure and casting the molten metal or alloy in the same atmosphere so that the metal or ally is in contact only with the said gas throughout the melting and casting thereof. The gas used may consist of carbon dioxide and nitrogen. The apparatus shown comprises a melting crucible 1 having a pouring spout 9 and cover 2 through which passes a refractory tube 4 which is adapted to be moved vertically into or out of the crucible thus permitting gas to be blown over molten metal in the crucible or bubbled through it as desired. A collapsable cowling, made of sections 11-16 and hinged at the tipping axis of the crucible, provides a gas tight cover over the pouring spout 9 and a casting mould 10. A vent 17 in the section 11 permits the displacement of air from the apparatus by the carbon dioxide containing gas. Specification 445,268 is referred to.
Patent GB-1210478-A (GB)
Title: Gas cooker device
Inventor: PERL RICHARD L
IPC: F24C3/04
Filed: 1969-05-02
Abstract: 1,210,478. Top fittings for gas stoves; thermal regenerator. TAPPAN CO. 2 May, 1969 [3 May, 1968], No. 22518/69. Headings F4K and F4W. A cooking top for a gas stove having infrared gas fired burners comprises a heat-resistant glass top 12, burners 13-16 and rotary regenerative heat exchange means 40 which extracts heat from the products of combustion and uses that heat to warm the incoming air passing to the burners. An electric motor drives a fan in the air inlet duet and drives a second fan in the extraction duct. A gas and air manifold 32, 26 are provided along the front of the cooker top. Turning on any of the burners also energizes the motor. The motor also rotates the heat exchanger by means of a chain drive. The body of the heat exchanger may be formed by winding a strip of corrugated asbestos paper impregnated with sodium silicate solution into cylindrical form.
Patent GB-1530563-A (GB)
Title: Apparatus for spraying fibrous material
IPC: B05B7/14
Filed: 1977-05-27
Abstract: 1530563 Supply system for powder spraying HERTEL BV 27 May 1977 [23 March 1977] 22622/77 Heading B2L A supply system for spraying of fibrous material comprises a hopper 1 having at its bottom a screw conveyor 3 which lifts material to a roller 6 having on its periphery a plurality of projecting carrier pins; a distributor brush 7, rotating in the same sense as roller 6, spreads the material on roller 6 and returns excess to hopper 1 via device 8, 9; a further brush 10, rotating in the opposite sense to roller 6, removes material from the roller and feeds it via funnel 11 to the inlet end of fan 12; from the fan the material passes via a hose to a spray nozzle. There may be a pair of screw conveyors 3; all rotating parts may be driven by a common motor drive, controllable from adjacent the spray nozzle.
Patent GB-586700-A (GB)
Title: Improvements in washing and spraying machines
IPC: C23G5/04
Filed: 1945-10-29
Abstract: In a washing machine of the type in which liquid is sprayed upon articles to be cleaned situated centrally within a rotating cylindrical assembly of tubes provided with spraying nozzles, a carrier for the articles is provided which is supported from the hub of the rotatable assembly at the inner end and serves as a guide extending outside the washing apparatus for supporting <PICT:0586700/III/1> <PICT:0586700/III/2> the articles to be cleaned as they are fed into the washing space. Fig. 1 is a part sectional side elevation of the machine, Fig. 2 a view of the open cylindrical end thereof, and Fig. 4 a broken sectional drawing through the hub of the rotating assembly.  Goods to be washed are placed on a carriage 3 of open structure which travels on guide rails 5 into the chamber 1 and inside the <PICT:0586700/III/3> assembly of conduits 7, which comprise a number of L-shaped tubes distributed equidistantly and equiangularly about a distributor block 10 rotating about a fixed hub 11.  The latter has an axial inlet 12 for the admission of the liquid pumped from tank 15 through the pipe 16, 17 which is attached to the inlet end of the hub.  Ball bearings 18 are interposed between the hub and distributor block fitted with a sealing ring 20 which is carried in the annular track 19.  Ports 21 diverge from the inlet 12 and provide a passage for the liquid to the tubes 7 via the concentric annular channel 22 of the distributor block.  The hub 11 is provided with a groove 29a in which is supported an inverted V-shaped member 30 fixed to the guide rails 5 supporting the carrier 3.  A track ring 32 supported on rollers 33 supports the closed ends of the tubes 7 remote from the distributor block.  The assembly may be rotated by a motor 24 through a chain and sprockets 27 on the distributor block 10, or the rollers 33 may be driven.  The perforations or nozzles 9 of each tube 7 may be staggered in relation to those of adjacent tubes.  Liquid discharged into the chamber returns to tank 15 after passing over a filter 38.  Paraffin oils may be used for washing machinery and engine parts.
Patent GB-773871-A (GB)
Title: Improvements in or relating to nickel alloys
Inventor: HARRIS GEOFFREY THOMAS
IPC: C22C19/05
Filed: 1952-10-10
Abstract: Alloys suitable for the production of parts subjected to stress at high temperatures have a composition, in percentage by weight, within the following range .C.0.5-2.0 .Mn.0.1-2.0 .Si.0.1-2.0 .Cr.15.0-25.0 .W.1.0-5.0 .Mo.1.0-5.0 .Nb and/or Ta.1.0-6.0 Ni and impurities the remainder.  The alloy may also contain one or more of the following elements Fe up to 15, B up to 0.5 ,N 0.01-0.2, Al, Be, Ce, Cu, Ti, V, Zr up to 3.0 in total.  Examples of alloys within this range are forged, solution treated for 5 minutes at 1250 DEG C. and oil quenched.  The Provisional Specification describes also the addition of Co up to 25 to an alloy of the above composition.
Patent GB-976315-A (GB)
Title: Photographic stripping film
IPC: G03C1/805
Filed: 1963-06-07
Abstract: 976, 315. Photographic stripping films. EASTMAN KODAK CO. June 7, 1963 [June 11, 1962], No. 22698/63. Heading G2C. A photographic stripping film comprises a linear polyester temporary support, a contiguous permanent support of cellulose nitrate containing 40 to 80% by weight of an adhesion promoter and a gelatino-silver halide emulsion layer. Between the permanent support and the emulsion layer there may be a cellulose ester (e.g. cellulose acetate butyrate) layer and a subbing layer of gelatin or mixture of cellulose nitrate and gelatin. An anti halation layer of gelatin may be coated on the other side of the temporary support, the adhesion between these layers being improved by a subbing layer of a methyl acrylate/vinylidene chloride/ itaconic acid terpolymer. Specified adhesion prometers are resorcinol, orcinol, catechol, pyrogallol, 1-naphthol, 2, 4-dinitro- and 2, 4, 6-trinitrophenol, m- and o-fluorophenol, o-cresol, 1, 3- and 1, 6- naphthalene diol, 4-chororesorcinol, 2, 4-dihydroxytoluene, benzyl alcohol, o-hydroxybenzotrifluoride, acrylic and trichleracetic acid, chloral hydrate and the sodium salt of 1-naphthol-4 sulphonic acid.
Patent GB-211828-A (GB)
Title: Improvements in or relating to regeneratively heated retort oven batteries
IPC: C10B3/02
Filed: 1923-09-10
Abstract: 211,828. Koppers Co., (Assignees of Ackeren, J. van). Feb. 23, 1923, [Convention date]. Retort furnaces. - In a regeneratively-heated retort or o v e n battery comprising vertical retorts alternating with heating walls the regenerators are disposed in a row alongside the row of ovens and are divided into alternating groups of inflow and outflow regenerators serving at least two pairs of heating- walls, the duct connection between the heating-walls and the regenerator being all at the same end of the heating-walls. The ovens 11 with their interposed heating-wails 12 are arranged at one side of the bench and the regenerator chambers 38 at the other, these chambers being grouped in fours, and connected to the supply and waste gas conduits in two sets R.S. In each group the two inner chambers heat the gas for combustion and the two outer ones the air, and since the groups of the two sets R.S. alternate along the line, the gas-heating chambers are, in both phases of operation, separated from the waste gas chambers by the air-heating chambers. Each regenerator chamber is connected to the heating-walls on opposite sides of a retort, the chambers of the set R to the lower ends of the heating-walls through vertical passages 53, 63 in the dividing wall between the regenerators and the retorts, forked flues 54, 64 and horizontal heater flues 55, 65, and the chambers of the set S through similarly arranged flues 74, 75, 84, 85, Specifications 191,393, 201,130, and 210,085 are referred to.
Patent GB-534020-A (GB)
Title: Improvements in or relating to pencil cases and the like
IPC: A45C11/34
Filed: 1939-08-04
Abstract: 534,020. Pencil and writing cases. DORY, S No. 22717, Aug. 4, 1939. [Class 146 (iii)] To facilitate the correct fastening of a loopforming strap 12 to a pencil or like case 2, marks are provided on the strap 12, the backing 1, or a guide which in use is attached to the base, to denote positions on the strap for folding and fastening. In order to form loops 8-11, embossings 18-21 and scorings 22-25 are formed on the strap which is then secured at one end as by a staple 13. The strap is turned back flat from staple 13, folded forward from ridge 18 and a second staple 14 inserted at the scoring 22 and so on with.staples 15-17. In place of the embossings and scorings double or single notches may be formed on the strap ; or two sets of markings may be formed on the backing or an attached guide, the markings indicating the position of the next fold or fastening. The case shown also has a single loop 4 for a map 5 &c. The strap may be fastened by sewing at the indicated points. In the case of straps with embossings and scorings, a large sheet of material may be so marked and then cut up into straps, but with notches or cuts the straps are first assembled and then notched or cut in a single operation.
Patent GB-246754-A (GB)
Title: Improvements in and relating to machines for tapping nuts and the like
IPC: B23G1/18
Filed: 1925-09-11
Abstract: 246,754. Schuhl, L., and Schuhl & von den Steinen, Maschinenfabrik. Sept. 11, 1925. Tapping nuts.-In a nut-tapping machine the rotatable tap h which has a curved shank is mounted in a holder e rotated about a horizontal axis, and is supported in sleeves c, g, by the finished nuts which pass along the shank i. A wide space b is provided between the sleeves to allow the nuts to pass round the bend in the shank by centrifugal action, which action also discharges the nuts into a casing surrounding the holder. Cuttings are separated from the nuts in the space b and are also discharged by centrifugal action. The sleeve c fits the nuts closely and is interchangeable with sleeves of different size. The cutting thrust of the tap is supplied by the sleeve g acting on the part f of the shank. axial movement of the tap taking place when it is not cutting to allow a nut to be ejected.
Patent GB-636561-A (GB)
Title: Improvements in or relating to rotary drum filters
IPC: B01D33/00
Filed: 1947-08-19
Abstract: 636,561. Rotary filters ; travelling-band filters. KOMLINE - SANDERSON ENGINEERING CORPORATION. Aug. 19, 1947, No. 22950. Convention date, Feb. 1. [Class 46] A vacuum filter comprises a rotary drum, a discharge roller remotely situated with respect to it, and a cord strand filter web trained about the drum surface and away from it to the discharge roller the strands of the filter web being contiguous from the drum to the discharge roller, and means being provided to separate the cord strands in the filter web after passing the discharge roller and before they are retrained on the drum. As shown in Fig. 2, two endless cords,. each forming one of two overlapping layers 17, 18 between end flanges 13 on a rotary filter drum 10, Fig. 1, convey a filter cake 21 to a discharge roller 16 having adjustable end flanges to maintain the overlapping relationship of the cords. After passing over the discharge roller, the cords are separated by two grooved directioning rollers 19, 20, and washed by spray from a pipe 23. The grooves on the rollers 19, 20 are such as to maintain the correct cord positions on the drum 10. The cord 17 is wound helically round the drum 10 and roller 16 and is caused during part of its path to travel parallel to the drum axis by pulleys 31, 32, Fig. 8, interposed between the discharge roller 16 and guide roller 19, so that it is continuously fed to one end of the system and removed from the other. The cord 18 is wound in the same way. To facilitate removal of the cake the roller 16 may have a polygonal cross-section or be of spider-section construction, or the distance between the end flanges may be great enough to accommodate the cords 17, 18 without overlapping, or the cords may be trained slightly angularly from the filter drum to the discharge roller.
Patent GB-1093210-A (GB)
Title: Static inverter system
IPC: H02M7/515
Filed: 1966-05-23
Abstract: 1,093,210. Inverting. BORG-WARNER CORPORATION. May 23, 1966 [June 4, 1965], No. 22972/66. Heading H2F. An inverter circuit comprising thyristors 40, 41 and a commutating circuit 48, 50, 42 is provided with a circuit for returning commutating energy without it passing through the thyristors 40, 41. When thyristor 40 is switched on, capacitor 48 discharges through it, and induces into winding 45 an extinguishing voltage for thyristor 41. Thyristor 30A is fired at the same time as thyristor 40, and the reverse half cycle is fed from winding 46 via thyristor 30A and diode 66 to winding 56 and hence winding 58. The induced voltage in winding 58 builds up until diode 62 conducts clamping the potentials at all windings, and if the ratios of windings are correctly chosen the voltages across 44 and 56 prevent current flow round the path 40, 44, 56, 57, 51. Thus energy stored in the commutating circuit is returned via transformer 53 to the supply. In a modification, Fig. 3 (not shown), the windings 56, 57 are replaced by two separate windings. The circuit of Fig. 2 may form one phase of a three-phase inverter, or may be a single-phase inverter.