baber/WOPTO huggingface dataset:
Patent GB-434800-A (GB)
Title: Improvements in and relating to the chloridizing of ore values
IPC: C22B1/08
Filed: 1933-12-06
Abstract: In chloridizing a roasted sulphide ore containing zinc oxide, the major portion of the zinc oxide is first chloridized, say at 80--110 DEG  C. in a chloridizing atmosphere containing chlorine, hydrochloric acid, &c., the zinc chloride formed being optionally removed, and the ore is then treated in the presence of ferric oxide with hydrochloric acid gas in the substantial absence of air and at a final temperature of below 90 DEG  C. to form crystalline ferric chloride, and the latter reacted with the unchlorinated zinc to form ferrous chloride and more zinc chloride.  The first chloridizing step may be effected in co-current or countercurrent, and the temperature and rate of gas flow are so controlled that the ore remains substantially dry, granular, and gas permeable during the chloridizing stages.  To complete the formation of chlorides, air may be passed over the treated ore in counter-current at a temperature of 250--350 DEG  C. to decompose the iron chlorides forming ferric oxide and chlorine, the waste gases from this stage being utilized in the first chloridizing step. Ore for treatment may be roasted in the presence of an alkaline earth, as described in Specification 424,375, or the chloridizing operations only may be carried out in the presence of an alkaline-earth.  Prior to chloridizing, the roasted ore may be leached with dilute hydrochloric or sulphuric acid to remove readily-soluble silicates, and silicic acid formed may be dehydrated at say 350 DEG  C. before formation of ferric chloride. The treated ore may be leached to remove zinc chloride, and then treated with a hot brine solution to recover lead chloride.  Tin, if present, may form stannic chloride which is volatilized during the decomposition of iron chlorides and decomposed in the first chloridizing step, reforming stannic oxide.
Patent GB-295539-A (GB)
Title: Pencil holder for leads of different kind, thickness or colour
IPC: B43K21/00
Filed: 1927-12-19
Abstract: 295,539. Kinzinger, A., Dec. 19, 1927. Pencil holders.-A writing-instrument comprises a tubular casing a open at both ends and containing a number of independent pencil holders b frictionally held in position one behind the other, the pencil holders being each provided with lead propelling mechanism which does not occupy the whole of the casing b, so that a space is provided for the accommodation of the point of the adjacent holder. The pencil holders may be held in place by means of two pins g engaging a groove in the front and rear holder, the pins being carried by spring rings f mounted on the casing a. The upper ring f may form part of a pocket-clip. In a modification, diametrically-opposite slots are formed in the holders, and the edges of the slots bulged out. The tube a is of such a length that the rear holder is securely held.
Patent GB-426616-A (GB)
Title: Improvements relating to travelling trunks
IPC: A45C13/03
Filed: 1934-11-29
Abstract: 426,616. Clothes-hangers. REISMANN, D., 12, Stefanikstrasse, Bratislava, Czecho- Slovakia. Nov. 29, 1934, No. 34335. [Class 52 (v)] [See also Group XVII] Clothes-hangers 20 of the form shown in Fig. 6 are mounted upon pins 24 slidable telescopically within tubular members 21 arranged at the ends of the frame member 4 within a suit case.
Patent GB-212967-A (GB)
Title: Improved surface condenser installation
IPC: F01B25/00
Filed: 1922-12-16
Abstract: 212,967. Mirrlees Watson Co., Ltd., and Dexter, W. A. Dec. 16, 1922. Condenser systems.-In a condenser system of the type in which condensate is drawn from a collecting-box 2 and passed by a pump 3 to a tank 5 communicating with the box 2 through a floatcontrolled valve 9 the tank 5 is closed so that an " artificial head " is produced in it by the pump 3 and it can be placed at any desired level. The water from the tank 5 passes through a Venturi or like meter 12 to a feed-heater 6 and thence to the feed pump 11. A thermostatically-controlled valve 15 returns overheated water to the condenser 1. The air-pump consists of a two-stage ejector 16. 16<1>, the steam from the first stage being condensed by water supplied from the tank 5 through a pipe 18<1>, the condensate being returned to the tank 2 through a pipe 19. The steam from the secnd stage is used to heat the feed-heater 6, and when condensed is passed to the condenser through a tank 22 and float-valve 23.
Patent GB-295175-A (GB)
Title: Improved process and machine for manufacturing hollow rubber balls
IPC: B29C51/44
Filed: 1927-12-19
Abstract: 295,175. Kurokawa, K. Dec. 19, 1927. Moulding. indiarubber balls.-A machine for making hollow rubber balls comprises a steam-jacketed mould mounted on a hollow shaft, a hollow pressing member located directly above the mould and reciprocated vertically by an eccentricallymounted disc carried by an upper shaft and a cutting member located around the pressing member and provided with straight-line and annular cutting-blades, the said cutting member being actuated by other discs on the upper shaft. In the illustrated form, discs of rubber are cut in succession from a strip fed along the rollers 31, by means of the cutting- ring 26 which is depressed at regular intervals by the cams 30 against the action of the spring 29. A heated hemispherical die 12, working in timed relation with the cutter, is depressed by the cam 17 to force the severed disc into the heated trunnioned cup 4, the latter afterwards being tilted by toothed gearing to deliver the complete half ball. Two such members are connected circumferentially to form the completed ball. The straight-line cutting blade trims the strip off square at the rear of the circular cut, at each stroke.
Patent GB-892718-A (GB)
Title: Improvements in the production of unsaturated polyesters
IPC: C08G63/553
Filed: 1958-10-28
Abstract: New unsaturated polyesters, copolymerizable to give resins free from surface stickiness, are made by polyesterifying a saturated dihydric alcohol with cyclo-dodeca-trienyl-succinic acid or anhydride <FORM:0892718/IV (a)/1> (the adduct of maleic anhydride and cylco-dodeca-triene-see Specification 853,728).  The polyesters may be modified by the addition of trihydric or higher polyhydric alcohols or by monocarboxylic acids and may be copolymerized with styrene, vinyl acetate or esters of methacrylic acids.  In the example, a polyester made by heating ethylene glycol, cyclo-dodeca-trienyl succinic acid and maleic anhydride in the presence of hydroquinone is formed into a lacquer by the addition of further hydroquinone, styrene, cobalt naphthenate, cumene hydroperoxide, butyl acetate and cellulose acetobutyrate. Specifications 766,666 and 777,793 also are referred to.
Patent GB-1299046-A (GB)
Title: Locking device for a bearing or the like
IPC: F16C35/073
Filed: 1971-07-22
Abstract: 1299046 Bearings; mounting bearing races on shafts TEXTRON Inc 22 July 1971 [16 April 1971] 34536/71 Headings F2A and F2U In an assembly comprising a bearing inner ring mounted on a shaft, the ring has an annular, axially-extending end portion, the inner surface of which is relieved over a limited arcuate extent about an axis (radius R 3 ) eccentric to the axis (radius R 2 ) of the shaft surface, and the outer surface of which includes a circumferentially-extending radial flange 24; a clip 20 engaging over said flange includes a tongue 27 such that the ring can be locked to the shaft simply by pushing the clip to the left or right as seen in Fig. 7. The end portion is chamfered at 23, 26 to facilitate the fitting of the clip to the ring. Two clips may be provided, and a further arcuate relieved portion may be situated diametrically opposite on the ring (Fig. 3, not shown). The clip is of spring-ribbon steel. The arrangement can be radially reversed if an outer ring is to be mounted in a bore.
Patent GB-1036097-A (GB)
Title: An electron diffraction tube
Inventor: HOCKLY DAVID ALAN
IPC: H01J37/295
Filed: 1963-09-02
Abstract: 1,036,097. Cathode-ray tubes. TELTRON Ltd. Oct. 2, 1964 [Sept. 2, 1963; Jan. 1, 1964], Nos. 34646/63 and 130/64. Heading H1D. In an electron diffraction tube, the electron beam from the gun 2, 3, 4 (Fig. 1, not shown) passes through an anode structure constituted by a cylinder 5 and two apertured discs 6 and 7, the latter disc being formed of a pair of plates which clamp between them a gold, aluminium, or mica foil specimen 10 to fill the aperture (Fig. 2, not shown), the diffraction pattern being formed on the phosphor screen 13.
Patent GB-966136-A (GB)
Title: Improvements in and relating to bearings
Inventor: PHILLIPS KENNETH FREDERICK
IPC: F16C33/04
Filed: 1959-10-13
Abstract: 966,136. Bearings. ENGLISH ELECTRIC CO. Ltd. Jan. 3, 1961 [Oct. 13, 1959], No. 34657/59. Heading F2A. A dry-lubricated or unlubricated bearing has a bearing surface consisting of a mixture of boron nitride and graphite. The surface may be applied to a backing member to a thickness 0.0001 to 0.0004 inch, or alternatively may be in the form of an insert. The preferred ratio of boron nitride and graphite is 1: 1 by weight.
Patent GB-859737-A (GB)
Title: Phosphonic and thiophosphonic esters and compositions containing them
IPC: C07F9/12
Filed: 1957-11-06
Abstract: The invention comprises compounds of the general formula: <FORM:0859737/IV(b)/1> (wherein R is a C1-4 lower alkyl group; R1 is a hydrogen or halogen atom or -NO2, -OCH3, -OC2H5 or -CH3; X is an oxygen or sulphur atom; and Q is -N = N or <FORM:0859737/IV(b)/2> ), and the preparation thereof by reacting a compound of the general formula:  <FORM:0859737/IV(b)/3> (wherein Y is a halogen atom) with a compound of the general formula:  <FORM:0859737/IV(b)/4> The thiophosphoric esters can be converted into the corresponding phosphoric esters by reaction with oxidising agents; and the azo group can be converted into the azoxy group by reacting the phosphoric esters with hydrogen peroxide.ALSO:The invention comprises compounds of the general formula:  <FORM:0859737/IV (c)/1> (wherein R is a C1-4 lower alkyl group; R1 is a hydrogen or halogen atom or -NO2, -OCH3, -OC2H5 or -CH3; X is an oxygen or sulphur atom; and Q is -N=N-), and the preparation thereof by reacting a compound of the general formula:  <FORM:0859737/IV (c)/2> (wherein Y is a halogen atom) with a compound of the general formula:  <FORM:0859737/IV (c)/3> Compounds of the invention having an orange, red or yellow colour are disclosed.ALSO:Parasiticidal compositions comprise at least one compound of the general formula:  <FORM:0859737/VI/1> (wherein R is a C1-4 lower alkyl group; hydrogen or halogen atom or -NO2, -OCH3, -OC2H5 or -CH3; X is an oxygen or sulphur atom; and Q is -N=N- or <FORM:0859737/VI/2> -(and a compatible carrier therefor and/or one or more other substances having parasiticidal or fertilising properties.  In particular, fly-killing compositions may contain additional fly-killing substances selected from organic chlorine compounds, phosphoric and thiophosphoric esters, thiocyanates, thiocyanacetates, pyrethrum esters and synthetic pyrethains. Adhesives, dispersing agents and wetting agents may be incorporated if desired.  Suitable carriers are liquids wherein the active material may be dispersed or dissolved, e.g. in the form of self-emulsifying concentrates; semi-solids adapted to give a paste-like consistency; and particulate solids like talc.
Patent GB-155204-A (GB)
Title: Method of and joint for rivetting power-transmitting steel bands
IPC: B21J15/02
Filed: 1920-12-09
Abstract: 155,204. Bauhof, R. Sept. 12, 1919, [Convention date]. Belt gearing.-Steel driving bands are joined by drilling holes in their obliquely cut ends a, b, Fig. 3, pressing a cup d, c around each hole, inserting rivets c from the concave side with a soft metal washer f next to each head g and a hard metal washer i on the end which is riveted over. The cups are formed by hand-operated dies l, k, Fig. 4, the former having a positioning pin o which passes through the drilled hole into a hollow spring-pressed plunger n in the die k.
Patent GB-1195778-A (GB)
Title: A Method and Apparatus for the Transportation of Lime-Sand Blocks
IPC: B66C1/44
Filed: 1968-07-22
Abstract: 1,195,778. Grippers for lifting stacks of bricks. HANDELSGESELLSCHAFT THIESSENUND HUPFELDWERKE m.b.H. 22 July, 1968 [22 July, 1967], No. 34805/68. Heading B8H. Stacks of building blocks. Fig. 1, are transported from the factory, from stacks at a time arranged as shown, by a gripper, Fig. 4, with cam operated jaws 15, 16 and partitions 19, 25 which fit between adjacent stacks as the gripper is lowered. The gripper is mounted on a vehicle which transports the blocks to a building site with the gripper remaining in contact with the blocks to prevent any being displaced. At the site the blocks are unloaded by the gripper on the vehicle and are lifted by the site crane by means of a smaller capacity gripper, Fig. 2. This lifts part of a stack at a time by engaging the blocks in the direction y-y. Fig. 1. Jaws 34, 35 are hinged between depending brackets 31 on a beam 30 which has rollers or pads 43 on its lower surface. A spring-loaded bolt 41 engages holes 42 to hold the jaws open when the gripper is unloaded. A safety cage. Fig. 3 (not shown), which has one side fixed and the other side and the base hinged to permit loading, may be provided. The base is hinged to the hinged side in such a way that the maximum angle of opening is 90 degrees. This facilitates closing the cage under the load where it is retained by means of a hooked base-engaging member.
Patent GB-892157-A (GB)
Title: Process for the continuous manufacture of aldehydes and ketones
IPC: C07C45/28
Filed: 1958-10-30
Abstract: A catalyst for use in the oxidation of olefines to aldehydes and ketones consists of an aqueous solution comprising a compound of a metal of the platinum group and a salt of vanadium, chromium, manganese, iron, cobalt, nickel or copper.  After separation of the product and unchanged hydrocarbon the catalyst is generated by an oxidizing treatment comprising anodic oxidation or treatment with ozone, a halogen or a peroxidic compound.  The regeneration process is preferably carried out in conjunction with a treatment with oxygen, air, or other gaseous mixture containing oxygen.  In the examples catalysts consisting of aqueous solutions of the following mixtures are used; (a) PdCl2, FeCl3, CuCl2 . 2M2O, cupric acetate and hydrochloric acid; (b) PdCl2, CuCl2 . 2M2O and cupric acetate; (c) CuCl2 . 2H2O and PdCl2; and (d) Fe2(SO4)3 . 9H2O, PdCl2 and sulphuri acid.ALSO:Aldehydes and ketones are produced by reacting an olefinically unsaturated hydrocarbon with an aqueous catalyst solution containing a compound of a metal of the platinum group and a salt of vanadium, chromium, manganese, iron, cobalt, nickel or copper, the reaction solution being freed of the aldehyde or ketone formed and then being subjected in the absence of the hydrocarbon to an oxidising treatment comprising anodic oxidation or treatment with ozone, a halogen or a peroxidic compound.  The oxidising treatment is preferably carried out in conjunction with treatment with oxygen, air, or another gaseous mixture containing oxygen.  The oxidation treatment restores the metal salts to their original state of oxidation.  The oxidising treatment may be carried out at a temperature or 0 DEG C.-200 DEG C.  Examples are given of the conversion of ethylene to acetaldehyde and propylene to acetone. Specifications 884,962 and 884,963 are referred to.
Patent GB-889125-A (GB)
Title: High melting point polymers
Inventor: SUTTON ROBERT ARTHUR
IPC: C08G77/08
Filed: 1959-10-15
Abstract: A siloxane is made by heating a diarylsilanediol dissolved in diethyl carbonate in the presence of an aluminium-magnesium lower alkoxide complex, and removing the solvent.  Preferably the reaction mixture contains from 25 to 50% by wt. of the diol and the catalyst is present in amount of 0,75 to 3% by wt. of the diol.  The catalyst, which can be represented by the formula Mg[Al(OR)4]2, where R is an alkyl radical of 1 to 6 C atoms (see Group IV(b)), may be added as such or be formed in situ.  In the example, Mg- and Al-n-butoxides were added to a solution of diphenylsilanediol in diethylcarbonate, and the reaction mixture was heated at 90 DEG  to 105 DEG C. for 2 1/2 hrs. while dry nitrogen was passed therethrough.  The temperature was raised to 115 DEG C. and then to 150 DEG C. to remove the solvent, and after heating at the same temperature but under reduced pressure for a period, the temperature was finally raised to 170 DEG C. while still under reduced pressure, to yield a light brown resin which did not melt under 340 DEG C.ALSO:A complex of the formula Mg[Al(OR)4]2, wherein R is an alkyl radical of 1 to 6 carbon atoms, may be made by the interaction of Mg-and Al-alkoxides in the approximate molar ratio of 1 : 2.  Thus bis-(tetrabutoxy-aluminium) magnesium can be made by mixing the appropriate molar proportions of Mg- and Al-n-butoxides in a small quantity of n-butanol; or by reacting Al with a solution of Mg-n-butoxide, as described in Annalen, 1927, 455, 227 and ibid 1929, 476, 113.
Patent GB-1173878-A (GB)
Title: Input Connector for Electric Distribution Tracks
Inventor: HART DEREK JAMES
IPC: H01R25/14
Filed: 1968-07-22
Abstract: 1,173,878. Two-part couplings. BRITISH LIGHTING INDUSTRIES Ltd. 22 July, 1968, No. 34942/68. Heading H2E. Power is supplied to conductors 14, 15 in a distribution track 10 by a connector 30 having resilient contacts 40 which are pushed apart and clamped to conductors 15, 16 when connector 30 is inserted in track 10, by a cam 42 operated by a shaft 48. Cam 42, of plastics, e.g. polyacetal, is biased against a cam seat 43, of similar material, by inclined surfaces of contacts 40, of brass. Inclined surfaces 49 on cam seat 43, with the aid of the above biasing, bias the cam 42 to the clamping (" on ") position, and thus prevent it from being inadvertently turned "off." Flats on the cam surface assist in this. An earthing contact 53 is provided on body 31, which is of rigid plastics, e.g. P.V.C.
Patent GB-882863-A (GB)
Title: Improvements in or relating to the production of oxygenated organic compounds
IPC: C07C45/35
Filed: 1959-10-15
Abstract: C2 and C3 oxygenated products are obtained by reacting propylene at elevated temperature with a molecular oxygen-containing gas in the absence of a catalyst and in the presence of high energy ionising radiation.  Preferably the dose rate lies in the range 106 to 109 rads per hr. Suitable forms of high energy radiation are X-rays, gamma rays, beta rays, alpha particles and fission fragments. Preferred temperatures are in the range 250 DEG C.-450 DEG C.  Among the products are, for example, propylene oxide, propylene glycol, acrolein, acetaldehyde, formaldehyde, methanol, alkyl alcohol and ethanol. Any unreacted propylene in the product may be recycled to the reaction stage.
Patent GB-521993-A (GB)
Title: Improvements in and relating to reservoir brushes
IPC: A46B11/00
Filed: 1938-12-01
Abstract: 521,993. Reservoir brushes. THORPE, T. E. Dec. 1, 1938, No. 35049. [Class 19] A reservoir brush or pad for brushing fabrics with highly volatile liquids, such as carbon tetrachloride comprises a brush carrying cap 3 provided with bristles 6 and a flow-controlling pad or disc 8 with one or more fine perforations 9 so that the fluid tends to flow over' the inside surface of the disc instead of streaming through the holes. The pad 8 may be absorbent and made of compressed asbestos. It may be clamped between the mouth of the container and the crown of the applicator cap to serve as a marginal seal. The bristles 6 may lie against the disc 8 or may be spaced therefrom. In place of bristles 6, pile fabric or the like may be used.
Patent GB-1077108-A (GB)
Title: Improvements in or relating to a heat and light stable resinous composition
IPC: C08K7/12
Filed: 1964-08-27
Abstract: Compositions comprising a vinyl halide resin and an inorganic filler are stabilized with (a) a nitrogen compound containing the group <FORM:1077108/C3/1> and (b) 0.1 to 3 parts by weight per part of (a) of a polycarboxylic acid anhydride.  The resin may be polyvinyl chloride or polyvinyl bromide, or a copolymer of a vinyl halide with vinylidene chloride, styrene, vinyl acetate, vinyl propionate, vinyl butyrate, methyl methacrylate or dialkyl maleates or fumarates. Specified inorganic fillers are asbestos, mineral wools, kaolin, silica, fuller's earth, magnesium silicate, calcium silicate, calcium carbonate, calcium sulphate, barium carbonate, barium sulphate, titanium dioxide, lead chromate and iron oxide.  Specified nitrogen compounds are melamine, methylmelamines, propylmelamines, phenylmelamines, melam, melem, benzoguanamine, guanidine, dicyandiamide, melaniline, and salts thereof, e.g. carbonates, hydrochlorides and sulphates. Specified anhydrides are succinic, glutaric, adipic, dodecenylsuccinic, citraconic, itaconic, maleic, chloromaleic, bromomaleic, tricarballylic, phthalic, chlorophthalic, tetrahydrophthalic, hexahydrophthalic, 3,4-dimethyl-6-butenyl tetrahydrophthalic, hexachloro endomethylene tetrahydrophthalic, trimellitic and pyromellitic anhydrides, and adducts of maleic anhydride with cyclopentadiene or methylcyclopentadiene.  The compositions may also contain polyhydric alcohols, e.g. pentaerythritol, dipentaerythritol, sorbitol, mannitol, methyl glucoxide and styrene/allyl alcohol copolymers; conventional stabilizers, e.g. barium, cadmium and zinc carboxylates and phenates, organic phosphites and epoxidized oils and fatty acid esters; and plasticizers, e.g. di-2-ethylhexyl phthalate, dibutyl sebacate and tricresyl phosphate.  The compositions may be used in floor coverings.  Examples describe compositions comprising vinyl chloride/vinyl acetate copolymers, asbestos, calcium carbonate and titanium dioxide together with (1) dipropylene glycol dibenzoate, epoxidized soya bean oil, melamine and maleic or phthalic anhydride; (2) dipropylene glycol dibenzoate, epoxidized soya bean oil, phthalic anhydride and melamine or dicyandiamide; (3) butyl benzyl phthalate, diisooctyl phthalate, epoxidized soya bean oil and melamine with maleic anhydride, succinic anhydride, phthalic anhydride or maleic anhydride and pentaerythritol, or dicyandiamide with phthalic anhydride; and (4) magnesium silicate, coumarone-indene resin, di-2-ethylhexyl phthalate, dicyandiamide, phthalic anhydride and optionally sorbitol.
Patent GB-426508-A (GB)
Title: A process for the treatment of textile materials
IPC: C11D1/50
Filed: 1933-12-14
Abstract: O-Alkyl and O-aryl derivatives of iso-urea or salts thereof are used as assistants, e.g. as wetting, washing and foaming agents in aqueous baths employed for the treatment of textiles.  The use of the iso-urea derivatives as levelling agents in dyeing with basic dyes is also mentioned.  Derivatives containing the radicles C12H25, CH2.CH2.OC10H21, CH2.CH2.OOC.C11-H23 and CH2.CH2OH.CH2OOCC11H23 attached to oxygen and O-alkyl and O-aryl derivatives of iso-urea derived from dimethyl, diethyl diamyl and dibenzyl cyanamides are specified.  Dodecyl iso-urea hydrochloride may be prepared by heating dodecyl alcohol, cyanamide and cyanamide hydrochloride.  Other O-alkyl derivatives may be obtained from ethyleneglycol monodecyl ether, ethyleneglycol monolauric acid ester and glycerine monolauric acid ester.  O-aryl derivatives of iso-urea may be prepared in a similar manner from phenols.  The Specification as open to inspection under Sect. 91 comprises also the use of the iso-urea derivatives as dispersing and emulsifying agents.  This subject-matter does not appear in the Specification as accepted.ALSO:The Specification as open to inspection under Sect. 91 comprises the use of O-alkyl and O-aryl derivatives of iso urea or salts thereof as emulsifying agents.  Derivatives containing the groups C10H21, C14H29, CH2.CH2.OC10H21 and CH2.CH2.OOC12H25 are specified.  This subject-matter does not appear in the Specification as accepted.