baber/WOPTO huggingface dataset:
Patent GB-405190-A (GB)
Title: Improvements in or relating to liquid cooled film tracks for kinematograph projectors
IPC: G03B1/56
Filed: 1933-07-04
Abstract: 405,190. Kinematograph projectors. ZEISS IKON AKT.-GES., 72, Schandauerstrasse, Dresden, Germany. July 4, 1933, No. 18984. Convention date, July 14, 1932. Addition to 372,186. [Class 97 (i).] A liquid-cooled film track comprises a closed hollow body 4 having pipes 2, 3, or connections, for the passage of the liquid. The body is constructed of sheet copper or other material having a good heat conductivity and may be secured to the track support 1 by screw thread engagement, by riveting, or by sweating.
Patent GB-295118-A (GB)
Title: Improvements in or relating to the production of new colour compositions and their application in the printing industry
IPC: C09D11/02
Filed: 1927-07-18
Abstract: 295,118. Bain, R. D., Nixon, E. G., and Lamson Paragon Supply Co., Ltd. July 18, 1927. Carbon papers, ink ribbons, and like transfer materials-Colour compositions for use as transfer or duplicating media, particularly in the manufacture of duplicating or transfer papers, consist of colouring-matter and, as substitutes for the oils, fats, and waxes usually employed, artificial resins or cellulose products which are capable of being dissolved if not already liquid, the compositions being in dry, paste, or liquid form, non-smearing, and capable of application in the cold. Filling-materials may also be added, and, if necessary, one or more solvents other than natural oils; when oil-soluble resins or resin ethers are employed small quantities of vegetable oils may be used as solvents together with antidrying agents such as #-naphthol. The colouring-matter may consist of vegetable materials, organic dyes, or mineral pigments. The solvent must not react chemically with the other materials, and must have a normal vapour tension at room temperature; suitable solvents are chlorinated hydrocarbons, hydrogenated hydrocarbons or phenols, methanol, ethanol, or the oxygenated intermediate products formed during their synthesis, glycol ethers, hydrocarbons, alcohols, ethers, ketones, or esters. In examples, lampblack and china clay are mixed with cellulose nitrate and sufficient acetone and toluene to make a paste; a purple lake, china clay, phenol-formaldehyde resin, and cyclohexanol are ground together with sufficient acetone and methylated spirit to form a paste. Specification 295.119 is referred to. According to the Provisional Specification, soluble casein products are also employed.
Patent GB-581908-A (GB)
Title: A method and apparatus for the combined preparation of hydrogen, heavy water and metals or alloys with low carbon content
IPC: C22B5/00
Filed: 1943-11-16
Abstract: A process for the production of heavy water and hydrogen comprises the following steps: (1) the electrolysis of water in a plurality of stages with intervening water distillation stages resulting in the formation of hydrogen and deuterium and the concentration of the heavy water in the succeeding electrolytes, (2) reductions of metal oxide or mixtures of metal oxides by means of the hydrogen and deuterium evolved from one or more of the electrolysis stages (see Group II) whereby water containing a higher proportion of heavy water than ordinary water is formed and returned to the appropriate early stage of the electrolysis system for reelectrolysis.  Preferably, the size of the successive electrolysis stages decreases in the direction of the main water flow as the heavy water concentration of the electrolyte increases.  The use of the oxide reductions may be restricted to the recovery of the heavy water content of the hydrogen from the stages of low and medium heavy water concentrations, the hydrogen from the later stages containing higher concentrations of deuterium being burnt in gas burners to form water for return to the appropriate electrolysis stage.  The hydrogen-deuterium mixtures on their way to the reduction furnaces may be purified from oxygen and preheated by contact with iron sponge at a temperature of 200-400 DEG C.ALSO:In a multi-stage electrolysis process for the recovery of heavy water [see Group III] hydrogen richer in denterium than ordinary water obtained in certain of the electrolysis stages is employed in the reduction of metal oxides or mixtures thereof to produce low carbon metals or metal alloys.  Zinc, iron, manganese, nickel, chromium, copper, lead, tin or alloys such as ferro-chromium or ferro-nickel may be so prepared.  In the production of iron sponge from ores such as magnetite or haematite, the electrolytic hydrogen containing denterium is first passed through a chamber containing a part of the previously produced iron sponge heated to 200-400 DEG C. which frees the gas from traces of oxygen, then through the main output of iron sponge which it cools at the same time being itself preheated, and finally through a furnace heated to 500-1000 DEG C. where it reduces the iron ore.
Patent GB-500019-A (GB)
Title: Method of protecting the compressors of thermo-compression evaporating plants from the attack of impure vapours and plant for carrying out this method
IPC: B01D1/30
Filed: 1938-06-28
Abstract: 500,019. Utilizing vapours for effecting further evaporation. ESCHER WYSS MASCHINENFABRIKEN AKT.-GES. June 28, 1938, No. 19123. Convention dates June 28, 1937. [Class 32] The compressors of thermo-compression evaporating plants are protected from attack by impure vapours, particularly the spray or priming contained in such vapours, by washing the vapours intensively before they enter the compressors and preventing the small amount of priming remaining in the vapours from being superheated by injecting a liquid into the various stages of the compressor. Hot condensate from the vapours is preferably used as the washing and injected liquid, which may be circulated in a closed cycle. Chemical reagents may be added to the liquid. Evaporators 4 are connected through a washing tower 5 to a compressor 1. which compresses the vapours evolved and returns them through line 3 to the heaters 10 of the evaporators, the condensate thus formed being fed to the separ. ator 7 of the washer 5, from which it is circulated by a pump 8 and line 9 to a spray pipe 6. Part of the condensate is also fed through line 14 and sprayers 13 into the compressor 1, chemical reagents being added through pipes 16. Control pipes 15 are provided for measuring the conductivity of the washing liquid. The spray pipe 6 may be replaced by a sprinkler or by a tray column having a cascade washing action.
Patent GB-781814-A (GB)
Title: Improvements in or relating to lithographic printing plates
IPC: B41N3/03
Filed: 1955-07-01
Abstract: 781,814. Printing surfaces. ALGRAPHY, Ltd., and ADAMS, R. A. C. May 2, 1956 [July 1, 1955], No. 19126/55. Class 100(2) A lithographic printing plate comprises a plate of aluminium or aluminium alloy having a porous absorbent anodic layer formed therein and having a hydrophilic colloid sealed ink the anodic layer. The method of preparing such a plate consists in anodizing the plate of aluminium or aluminium oxide so as to form the porous absorbent layer thereon and then either dipping the anodized plate for several minutes into a hydrophilic colloid solution maintained at ambient temperature and subsequently treating with boiling water or steam for twenty to thirty minutes or immersing the plate in a boiling solution of the hydrophilic colloid for twenty to thirty minutes. Suitable hydrophilic colloids include gum arabic, gum ghatti, mesquite gum, the sodium or ammonium salts of arabic acid, carboxy-methyl cellulose, alginic acid, carboxymethyl starch, methyl cellulose and oxidized starch.
Patent GB-315860-A (GB)
Title: Improvements in or relating to preservatives for wood
IPC: B27K3/32
Filed: 1929-06-21
Abstract: 315,860. Gruben-Holzimprõgnierung Ges. July 20, 1928, [Convention date]. Proofing against bacteria, fungi, and vermin.- In solutions for preserving wood, soluble fluorine and arsenic compounds are used together, with the addition of fluorine or arsenic compounds or both in difficultly soluble form. Other substances acting as fungicides, insecticides, fireproofing agents or iron protectives may be added. Insoluble compounds, which are converted into soluble form by chemical changes which take place in the wood during use, may be employed. The compounds may be produced in the wood by impregnation with a single solution or by successive impregnation with two solutions, which react to form the insoluble or difficultly soluble compounds, or the two methods may be combined. In examples, (1) wood is impregnated with a 1 per cent aqueous solution of zinc sulphate by an empty cell process and then impregnated with an aqueous solution containing 0.5 per cent sodium arsenite and 0.5 per cent sodium fluoride by a full cell process. (2) wood is impregnated at a temperature below 70‹ C. with a 2 per cent solution of a salt mixture consisting of 40 per cent ferrous sulphate, 40 per cent sodium fluoride, 10 per cent arsenious acid and 10 per cent sodium bisulphite. (3) into a solution of 5 parts copper sulphate, 8 parts seignette salt and 0.8 parts sodium hydroxide in 500 parts of water, the same quantity of a second solution containing 5 parts sodium fluoride, 2 parts sodium arsenate, and 1 part potassium bichromate in 500 parts of water is poured and the resulting mixture used to impregnate the wood at about 70‹ C. by a full cell process.
Patent GB-800918-A (GB)
Title: Improvements in wheeled carriers for golf-bags and other articles
IPC: B62B1/04
Filed: 1955-07-04
Abstract: 800,918. Golf-bag trolleys. BRAND, F. C. June 29, 1956 [July 4, 1955], No. 19268/55. Class 108(1) The legs 4 of a golf bag trolley carry detachable wheeled stub-axles 14 and are hinged together at 5 to form a clamp 9 which embraces the backbone 1, relative rotation being prevented by a dowel 11 engaging one of a series of holes 10 provided in the backbone to adjust the balance of the trolley. A handle 12 is telescopically accommodated in the backbone.
Patent GB-661110-A (GB)
Title: Improvements relating to sealing devices used in reversing gears for screws with rotatable blades
IPC: B63H3/08
Filed: 1948-07-19
Abstract: 661,110. Stuffing-box substitutes. AALBORG VAERFT AKTIESELSKABET, and BLACHE, H. H. July 19, 1948 [July 18, 1947], No. 19369/48. Class 122(v) In a hydraulic reversing gear for screws with rotatable blades in which the blade adjustment is effected by a rod sliding in the screw shaft and attached to a piston in a cylinder which has covers provided with extensions secured to the screw shaft and an intermediate shaft respectively for rotation of the cylinder and in which pressure liquid is supplied to the cylinder through annular sealing devices placed about the extensions and between weardishes rotating with the cylinder, the sealing device has a stationary member 5 with an internal annular shoulder 11, sealing rings are disposed two 6, 7 between each side of the shoulder 11 and one of two weardishes 3, 4, a number of pins 15 are fitted into holes in the shoulder 11 and enter holes in the inner rings 7 to prevent rotation of the rings 6, 7, a number of coil springs 9 are housed in the shoulder 11 and in the inner rings 7 to force the outer rings 6 against the weardishes 3, 4 and a sealing cup 13 is interposed between the rings 6, 7 to abut by its peripheral margin the internal annular surface of the member 5 and the peripheral surface the recessed inner ring 7, while the inner rings 7 are unitary or radially divided in two and the outer rings 6 are radially divided in two or more parts. In an embodiment the surfaces of the rings 6, 7 between which the cup 13 is interposed are conical and pins 16 fitted in holes in both rings 6, 7 prevent their relative rotation. The peripheral surface of each composite ring comprising the rings 6, 7 is spherical about a centre in the shaft axis and in the median of the composite ring. Passages may be provided from the spring holes 12 in the rings 7 to allow pressure fluid to act upon the cup 13. Radial lubricating grooves provided in the surfaces of the rings 6, terminate short of the outer edge of the rings 6 and have shallow extensions in the direction of rotation. In a modification the surfaces of the rings between which the cup is interposed are plane and the rings are assembled by screws, being maintained in coaxial relationship by an annular shoulder on one ring. Each ring may be divided into halves being assembled with the joints relatively displaced
Patent GB-121126-A (GB)
Title: An Improved Screwing Apparatus.
Inventor: SIGALON ANTOINE
IPC: B23G5/10
Filed: 1918-11-25
Abstract: 121,126. Sigalon, A. Nov. 23, 1917, [Convention date]. Screwing die-heads for hand or machine use, and adjustable for screwing work of widely different diameters but of the same pitch, comprise dies c with cylindricallyshaped ends c' forming pivots in recesses in the die-holder a. The dies c have pins c<2> engaging with cam slots j in the rotatable cover-plate e. In a modification, the cam slots are formed as recesses in a support for the die-holder, which is then rotatable relatively to its support. The cover-plate e, or the support for the die-holder a, as the case may be, is preferably coupled to the dieholder by an adjusting screw such as n held in a pivoted nut m and having a hooked end n' engaging a pin k. A pivoted latch for locking and disengaging the hook n<2> and pin k may be worked automatically by an adjustable stop rod, or by hand through a lever q.
Patent GB-1467087-A (GB)
Title: Printing device
IPC: B41J1/48
Filed: 1975-05-08
Abstract: 1467087 Selective printing SUWA SEIKOSHA KK and SHINSHU SEIKI KK 8 May 1975 [9 May 1974] 19443/75 Heading B6F A printer has at least one type wheel 10 which can be stopped in a selected position when engaged by an associated pawl 12. Each pawl 12 is urged by a spring 25 to engage a ratchet wheel 102 associated with each wheel 10 but is restrained by a member 26 engaging portion 122 of the pawl. Energizing a coil 28 moves the member 26 downwards against its spring 34 and releases the pawl 12 to engage the wheel 102. Shaft 21 will continue to rotate when any of its wheels are stopped due to the slipping of spring 112 from its recess 211 so as to sever the drive connection between the shaft 21 and stopped wheel 10. Impression is produced by platen 44. Rotation of the shaft 43 in direction F rotates the pawls in the direction E and permits the ends 261 of the members 26 to re-engage the portions 122.
Patent GB-794441-A (GB)
Title: Improvements in or relating to duplexers
Inventor: LEAKE BERNARD WILLIAM
IPC: G01S7/03
Filed: 1955-07-05
Abstract: 794,441. Duplex radio signalling. DECCA RECORD CO., Ltd. June 13, 1956 [July 5, 1955], No. 19458/55. Class 40 (5). Relates to duplexers for microwave systems having a common transmitting and receiving antenna. In one embodiment a pair of hybrid units 14 and 15, Fig. 1, whose arms are numbered 1 to 4, are interconnected by their third and fourth arms, a phase shifter 17, which may be a gyrator, being connected between their third arms, enabling the electrical effective length of these connections to be altered by half a wavelength according to the required direction of signal transmission through the duplexer, the connection being such that an input at arm 1 gives an equal output at arms 3 and 4 and no output at arm 2. The transmitter 12 and receiver 13 are connected to arms 1 and 2 respectively of unit 14, arms 1 and 2 of unit 15 being terminated in the antenna 10 and a matched load 16. A second phase shifter may be connected between the fourth arms. A duplexer for pulse radar systems, Fig. 2, uses four hybrid units 14, 15, 20, 25, with gas cells 23 and 24 a quarter wave in front of, and terminated by short circuits 21 and 22, arranged in arms 1 and 2 of hybrid unit 20. The gas cells fire on application of a transmitter pulse to the circuit thus changing the electrical length of the connections between the third arms of units 14 and 15 by a half wavelength. The two gas cells may be embodied in a single gas tube. Another embodiment uses 3 db. branched-guide directional couplers as hybrid units and a single gas cell, Fig. 3 (not shown).
Patent GB-633961-A (GB)
Title: Improvements in or relating to self-locking nuts
IPC: F16B39/34
Filed: 1947-07-22
Abstract: 633,961. Locking nuts. ELASTIC STOP NUT CORPORATION OF AMERICA. July 22, 1947, No. 19575. Convention date, Jan. 21, 1944. [Class 89 (i)] The insert 16 in which threads are impressed to render the nut self locking is formed from a superpolymeric condensation product of a diamine and a dibasic acid preferably hexamethylene diamine and adipic acid, for example the material known commercially as nylon.
Patent GB-1198168-A (GB)
Title: Improvements to Conductor Rolls
Inventor: DODDS THOMAS ARTHUR
IPC: F16C35/073
Filed: 1968-04-25
Abstract: 1,198,168. Current collectors. HEAD WRIGHTSON & CO. Ltd. 22 April, 1969 [25 April, 1968], No. 19624/68. Heading H2E. [Also in Division F2] In a conductor roll each journal 1 is provided with a cladding 3 of copper or other conducting metal having a Brinell hardness of not less than 160 and on which is shrunk a hardened or stainless steel sleeve 6 carrying a roll bearing 12. Rotation of sleeve 6 is prevented by dowel pins 15 and bearing 12 is secured in position by a tapered sleeve 11 held by a nut 12 screwed on to sleeve 6. A slip ring 7 is held on the tapered end of the cladding 3 between nuts 5, 8 screwed on to threads at the ends of the journal 1 and sleeve 6, respectively. Sleeve 6 may have a polished portion 14 to receive the lip of an oil seal.
Patent GB-187695-A (GB)
Title: Improvements in sock suspenders
IPC: A41F11/16
Filed: 1922-06-06
Abstract: 187,695. Riley, S. R., and Boucher, H. H. June 6, 1922. Sock-suspenders.-In a sock-suspender the leg band of elastic is threaded through the pad portion so that they may be separated from each other when desired. The pad may be of double material, or may be slotted to receive the leg band. Reference has been directed by the Comptroller to Specification 155,512.
Patent GB-299106-A (GB)
Title: Improvements relating to harness
IPC: B68B11/00
Filed: 1927-07-25
Abstract: 299,106. Roberts, R. July 25, 1927. Whips and hunting-crops. - The flexible part 3 of a hunting-crop is formed as a series of loops 4 by fastening together a parallel pair of straps at intervals, and a slot 6 is provided in the L-shaped handle, so that the crop may be used in conjunction with the stirrup 7 as a step to assist in mounting.
Patent GB-220953-A (GB)
IPC: C07C37/00
Filed: 1924-08-21
Abstract: The specification as open to inspection under Sect. 91 (3) (a) describes the production of menthol by treating thymol in an autoclave with hydrogen under 15 atmospheres pressure and at a temperature of 160 DEG -170 DEG  C. using a catalyst prepared by precipitating nickel carbonate on kieselguhr and reducing it in hydrogen.  The crude menthol is either oxidized in acetic acid solution with chromic acid and the menthone reduced in alcoholic solution with sodium, or it is converted into the phthalate and the i-menthol recovered by saponification.  This subject-matter does not appear in the Specification as accepted.ALSO:Thymol is produced by nitrating p-cymene, electrolytically reducing the 2-nitrocymene to p-aminothymol in concentrated sulphuric acid solution and eliminating the amino group by diazotization and reduction.  According to the example, p-cymene is nitrated in known manner in concentrated sulphuric acid solution in the cold; a solution of the resulting 2-nitro-cymene in concentrated sulphuric acid is placed in a cathode chamber consisting of a porous earthenware vessel and covered with molten paraffin wax, the vessel put into an anode chamber filled with 75 per cent sulphuric acid and the solution electrolyzed at a temperature of 60 DEG  C. using an excess of current of high cathode density; the p-aminothymol solution obtained is partly neutralized, diazotized, and reduced in acid solution with stannous chloride or in alkaline solution with sodium stannite, and the thymol separated by steam distillation.  Prior to the reduction the electrolyzed solution may, instead of being partly neutralized, be poured into sodium bisulphite solution, the aminothymol then precipitated with caustic soda and taken up with hydrochloric acid.  Specification 206,848 is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) also describes the hydrogenation of the thymol to menthol in the presence of a nickel catalyst.  The crude menthol resulting may be transformed into the crystalline variety either by esterifying with phthalic acid and saponifying the ester or by oxidation in acetic acid solution with chromic acid to menthone and the latter reduced in alcoholic solution with sodium.  This subject-matter does not appear in the Specification as accepted.
Patent GB-752413-A (GB)
Title: An apparatus for marking x-ray films by direct photography
IPC: G03B42/04
Filed: 1954-07-06
Abstract: 752,413. Photographic printing. DANSK RONTGEN-TEKNIK AKTIESELSKAB. July 6, 1954 [July 17, 1953], No. 19818/54. Class 98 (2). In apparatus for photographically copying text matter on to an X-ray film, the text is slightly spaced from the film and is printed by a substantially point source of light. As shown, the text is carried by a transparent sheet 3 fixed below an aperture in a plate 6, the X-ray film 4 being placed over the aperture. The sheet 3 is illuminated by a substantially point source of light so that a sharp image is formed on film 4, despite its separation from sheet 3. The text is provided on two regions on the sheet, illuminated separately by lamps 1, 2, a baffle 5 ensuring that each region receives light from one lamp only. One region bears data varying from patient to patient, e.g. the patient's name, and this matter may be carried on a strip of transparent film carried across a slit formed in plate 6. The other region bears the date and other information which may be unchanged for a series of patients. The date numerals may be carried on concentric rings of transparent material mounted below plate 6 and adjusted to bring desired numerals &c. opposite a slit in plate 6, by means of holes in the rings into which a pointed instrument is inserted through circular slots in plate 6. The lamps 1, 2 are energized for a given time by apparatus 9, which preferably includes a condenser charged to a stabilized voltage and discharged through the lamps on depression of a switch.
Patent GB-1435422-A (GB)
Title: Timepiece
IPC: G04B19/30
Filed: 1974-05-06
Abstract: 1435422 Clocks SEIKO KOKI K K 6 May 1974 [9 May 1973(2)] 19851/74 Heading G3T Indicia on the front surface 2b of a clock dial 2 are illuminated by an electric lamp 9 which is positioned centrally in front of the dial and supplied by wires 10 passing through the dial, a shade 12 being arranged to reflect light from the lamp on to the dial and having angularly spaced cut-outs 13 whereby light can pass through to fall directly on the indicia. As shown the wires pass through a tube 7 which is fixed to a plate 5 attached to the rear of the dial and which supports minutes and hours hand arbors 15, 16. The wires are connected to the mains or a battery in the clock. The front end 7c of the tube carries lamp holder 8, A ventilated member 11 fits on the holder 8 to support the shade 12. In an alternative embodiment Figs. 2 and 3 (not shown) the shade (27) and the lamp are supported directly by a transparent front plate (25) of the clock.