baber/WOPTO huggingface dataset:
Patent GB-242616-A (GB)
IPC: B60T1/04
Filed: 1925-10-21
Abstract: 242,616. Kruckenberg, F. Nov. 4, 1924, [Convention date]. Actuating-mechanism.-In running and brake gear for railways, especially suspended high-speed railways, mechanism for automatically releasing the braking preasure when the braked wheel slides, owing to the braking pressure, comprises a shaft e driven by a differential gear connected between the braked wheel and a counter wheel or other unbraked wheel. The differential gear comprises bevel wheels f, h opposite one another, the differential movement of which is conveyed to a shaft l by a planet bevel i, an arm j, and a bevel gear k. The bevel h is driven by the braked wheel and the bevel f is driven in the opposite direction by worm gearing from the counter-wheel. When there is no sliding, the bevels rotate at the same speed and as the bevel h is larger than the bevel f the shaft l is rotated slowly. When there is negligible sliding and the braked wheel lags, the shaft l is stationary, but when there is appreciable sliding the shaft l rotates in the opposite direction. Two sleeve systems r, s are mounted on the shaft l and comprise inner sleeves t fixed to the shaft ! l and outer sleeves u allowed limited rotation relative to the sleeve t by pin-and-groove connections. Packing rings y in the sleeve system casing are pressed against the sleeves u by compressed air, and the resultant friction ensures that the sleeves u are only turned by the sleeves t when the pins 'are at the ends of the grooves, in which position openings in the sleeves of one system register and in the other system are closed. The sleeve system r controls communication between compressed air and the brake cylinder and the sleeve system s controls communication between the brake cylinder and the atmosphere. According to the direction of rotation of the shaft l, the braking pressure is maintained or released. The rotary sleeves may be replaced by flat discs, valves, &c.
Patent GB-1063626-A (GB)
Title: Hand-grips of plastics material for handles for digging and shovelling tools
IPC: B25G1/00
Filed: 1964-06-25
Abstract: 1,063,626. Injection moulding of hand tool handles. FARBWERKE HOECHST A.G. June 25, 1964 [June 29, 1963], No. 26404/64. Headings B4K and B5A. A hand grip of polypropylene is injection moulded on to the wood or metal handle of a shovel, spade, fork or similar tool. The bond between the hand grip and handle may be improved by grooves on the handle. The hand grip may be of isotactic polypropylene, and 5-30% of an amorphous polyolefine e.g. polyisobutylene may be added.
Patent GB-656138-A (GB)
Title: Improvements in or relating to high molecular weight polyesters
Filed: 1947-10-01
Abstract: A dihydric alcohol and an alpha beta unsaturated dicarboxylic acid are reacted until a resin having a low acid number not exceeding 50 is produced, about 0.5 to 2.0 per cent of an acid, an hydroxy acid or an alcohol with a total of at least 3 hydroxyl and carboxyl groups and no CH2=C= groups is added and the reaction continued until a polyester of high molecular weight is obtained.  It may be copolymerized with a compatible polymerizable substance having a CH2=C group, a boiling-point of at least 60 DEG  C., and no conjugated double bonds.  The dihydric alcohols are preferably those containing only primary hydroxyl groups, e.g. the glycols.  The alpha beta unsaturated acids include maleic, fumaric, itaconic, citraconic, mesaconic, halogenated maleic and may in part be substituted by acrylic, beta-benzoyl acrylic, methacrylic, cinnamic, and crotonic acids.  The compound with at least 3 carboxyl and hydroxyl groups may be any such alcohol, acid or hydroxy acid as pentaerythritol, glycerol, pentaglycerol, sorbitol, mannitol, trimethylol benzene; citric, malic, dihydroxystearic, tartaric, trihydroxyglutaric, methylol phthalic, or benzene tricarboxylic, fumaric or maleic acid or adducts of higher fatty acids with a conjugated double bond such as linseed fatty acids.  The compatible polymerizable substance may be styrene or a styrene derivative, an isopropenyl toluene or benzene, styrene with nuclear-substituted fluorine, bromine or chlorine, vinyl-naphthalene, -mesitylene, -diphenyl, -carbazole, -phenol, or -furane, dialkyl esters of maleic, fumaric and itaconic acid, diallyl esters of high boiling-point various specified allyl esters and compounds, acrylic and methacrylic acids, methyl methacrylate, methyl acrylate and ether esters. Polymerization catalysts such as various specified peroxides may be employed in the copolymerization and polymerization inhibitors may be used during the preparation of the preliminary alkyd resin or during copolymerization.  An inert solvent such as xylol or toluene may be included in the reaction mixture to remove water of esterification and thus reduce esterification temperature. Eight examples are given in seven of which a saturated aliphatic dibasic acid and in the other phthalic anhydride, is included in the reacting mixture in higher molecular proportion than the unsaturated acid.  Samples have been furnished under Sect. 2 (5) of polyesters in which the reacting mixture (1) does not include such a saturated acid; (2) includes phthalic anhydride in lesser molecular proportion.
Patent GB-618052-A (GB)
Title: Improvements relating to methods of recovering nutrient constituents from forage crops and products obtained thereby
IPC: A23K1/18
Filed: 1945-10-10
Abstract: Substances of nutritional value to animals are obtained from forage crops such as grass, clover, alfalfa and legumes, which have been harvested green and artificially dehydrated, by heating in an acid or alkaline aqueous medium at above 100 DEG  C., the liquid extract being then, if desired, separated from the solid residue and concentrated or dried, e.g. by spraying.  Alternatively, the dehydrated material may be steeped in water below 100 DEG  C., and, after separation of the liquid from the solid residue, either the liquid or the solid may be heated in an acid or alkaline aqueous medium at above 100 DEG  C.  Into an animal diet containing the essential amounts of proteins, fats, carbohydrates, salts, and known vitamins may be incorporated the liquid extract, the solid residue, or both, together with, if desired, the untreated dehydrated crop or the liquid or solid residue obtained by steeping the dehydrated crop in water below 100 DEG  C., comparative tables of increases in weight and in blood haemoglobin for chicks receiving such supplements to a basal diet of stated composition being given.
Patent GB-1534386-A (GB)
Title: Covers for swimming pools or other bodies of water
IPC: E04H4/10
Filed: 1977-06-24
Abstract: 1534386 Swimming pool covers &c H SALA and M-T SALA 24 June 1977 [7 July 1976] 26516/77 Heading A4N A swimming pool &c. cover is formed by a plurality of elongated sections of material each formed by two sheets of synthetic material with a layer of air therebetween, and each section being covered at its longitudinal edges by a strip of synthetic material containing non-stretch fibres. Each said edge is provided with eyelets whereby the section may be secured in overlapping relationship to the edge of an adjacent section or secured by rings and cables to the ground at one end of the pool or to a winch.
Patent GB-812991-A (GB)
Title: Improvements relating to hydrocatalytic desulphurisation processes
IPC: C10G45/28
Filed: 1956-08-30
Abstract: In an autofining process using a fluidized bed of a dehydrogenation-hydrogenation catalyst-comprising the steps of passing a hydrocarbon feed in the vapour phase through the fluidized bed in a reactor; withdrawing the product as vapour; cooling the product to separate it into a liquid phase and a vapour phase rich in hydrogen and recycling this vapour phase to the reactor; continuously or intermittently withdrawing catalyst from the <PICT:0812991/III/1> bed and regenerating it with an oxygen-containing gas; and reducing regenerated catalyst and reintroducing it into the reactor with a portion of the recycle gas-the whole of the recycle gas is heated to a temperature suitable for reducing the regenerated catalyst and is thereafter split into two streams, one being used without further heating for reducing the regenerated catalyst and reintroducing it into the reactor, and the other being further heated to the reaction temperature before being reintroduced into the reactor.  A suitable catalyst comprises the oxides of cobalt and molybdenum, separately or as cobalt molybdate, on a carrier such as alumina, preferably containing 0.1 to 6 per cent wt. fluorine, the concentration of which may be maintained by bleeding fluorine into the hydrocarbon feed. The recycle gas stream may be heated to 400 DEG  to 600 DEG  F. by heat exchange with the effluent product gases from the reactor. Reduction and reintroduction into the reactor of the regenerated catalyst may be effected simultaneously.  The catalyst-reducing recycle gas stream may be split further, a portion being used to effect a spent catalyst lift.  In Fig. 1, hydrocarbon feed passes via line 10, passing through heat exchangers C1, C2 and C3 and heater 4 to reactor 1, supplied with fluidized catalyst from line 31.  Product gases, leaving via line 12 are freed from catalyst fines with scrubbing oil in scrubber 5, and then cooled in heat exchangers C4 and C1 and condenser C5 and passed to high pressure separator 7 and low pressure separator 8 from which liquid product is removed for conventional processing, including stripping and a caustic soda treatment, via line 13.  Hydrogen-rich recycle gas from separator 10 is passed through oil filter 30 and heat exchanger C4 and then split into two streams at band 51.  One is injected into the hydrocarbon feed line 10 and the other into line 31 to reduce regenerated catalyst and reintroduce it into the reactor.  A portion of the latter stream is branched through line 32 to operate a spent catalyst lift.  Line 31 receives catalyst from catalyst regenerator 3 which is supplied with spent catalyst from hopper 2 via line 42. Specifications 706,842 and 785,312 are referred to.
Patent GB-446724-A (GB)
Title: Improvements in files
IPC: B23D73/00
Filed: 1935-09-25
Abstract: 446,724. Files. HELLER, P. E., 242, Elwood Avenue, Newark, New Jersey, U.S.A. Sept. 25, 1935, No. 26549. [Class 61 (ii)] The teeth of a file are formed by overcutting the blank at o along diagonal lines a varying distance from one anothe and upcutting the blank a,t u along equidistantly spacedlinesreverse ly oblique to or across the over cutting lines there by forming teet'.' h, m, l of differen widths and which are also of progressively diminishing height due to the action of the upcutting chisel causing a greater lateral flow of the metal of a lesser width tooth and consequently a slightly lessened elevation of its cutting edge ; following teeth are therefore of slightly varying height as shown in Fig. 3.
Patent GB-787630-A (GB)
Title: Process for froth flotation dressing
IPC: B03D1/02
Filed: 1952-10-23
Abstract: Pulp is treated in a Pullman type baffle-plate mill to aerate it and to mix the flotation reagents intimately into the pulp. The reagents or pulp may be heated before the treatment.  High boiling point hydrocarbons e.g. fuel oil and tar can be used as the reagent.  The material may be reworked by the same process.
Patent GB-482118-A (GB)
Title: Improvements in electric condensers
IPC: H01G2/08
Filed: 1937-10-01
Abstract: 482,118. Condensers. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, and HANSSON, B. Oct. 1, 1937, No. 26631. Addition to 409,425, [Group XXXV]. Drawings to Specification. [Class 37] Apparatus according to the parent Specification has the pressure medium in the space between the walls of the outer and inner containers is caused to flow continuously or intermittently. This may be effected by combining the circulation of the pressure medium with cooling by passing the mediumthrough an external cooler, a gas cushion in a closed vessel accommodating expansion, or by connecting the outer containers with a high-pressure water main, the outlet being restricted to cause a pressure to exist in the apparatus.
Patent GB-1044936-A (GB)
Title: Projector for slowly changing pictures
IPC: G03B21/00
Filed: 1965-06-24
Abstract: 1,044,936. Film projection apparatus. CARLZEISS-STIFTUNG [trading as CARL ZEISS]. June 24, 1965 [June 27, 1964], No. 26737/65. Headings G2E and G2J. A projector for the demonstration of slow motion changes in form and brightness as in a planetarium, comprises an endless film-strip 8 continuously driven by roller 9 at a low image frequency, a rotating compensating prism 4, and a rectangular vignetting diaphragm 6 in front of lens 5 in place of the normal image gate. Frequencies of one frame per second or slower are used.
Patent GB-672289-A (GB)
Title: Improvements in or relating to boiler fire doors
IPC: F23M7/00
Filed: 1949-10-19
Abstract: 672,289. Furnace doors. BENNIS COMBUSTION, Ltd., PAGE, R. B., and SMITH, E. Oct. 19, 1950 [Oct. 19, 1949], No. 26799/49. Class 51 (i). A guillotine type fire-door 19 for a boiler furnace is adjustably suspended on chains 18 or the like and is guided at each side in a guideway 20 which is inclined upwardly and in a direction away from the boiler shell. Rollers 24 are provided on the face of the fire-door remote from the furnace. In a modification rollers are provided on both faces of the firedoor.
Patent GB-998692-A (GB)
Title: Improvements in and relating to gummed sheet material
IPC: C09J7/32
Filed: 1963-07-05
Abstract: A substantially non-curling gummed sheet of the water-remoistenable type is produced by dissolving water-reactivatable gum in water to form a water solution of gum, dissolving in a solvent a film-forming binder, which is substantially insoluble in water, to form a binder solution, the binder solution being incompletely miscible with the water solution, dispersing the water solution in the binder solution substantially free from particles of gum to form an emulsion, coating the emulsion on a sheet, e.g. of paper, and drying to form a coating on the sheet of pieces of gum partially coalesced in the form of a honeycomb structure, the binder preventing the pieces coalescing completely.  The ratio of gum to binder may be at least 4 : 1 by weight.  The binder solvent may comprise at least 25% by volume of the liquid in the emulsion.  The binder solvent may be a mixture including a substantially water-immiscible solvent and a solvent having a limited miscibility with water.  The binder may be resinous and may be selected from vinyl ester copolymer, e.g. vinyl acetate copolymerized with a small proportion of crotonic acid or maleic acid, polyvinyl chloride, butadiene-styrene copolymers and polymers of acrylic esters.
Patent GB-741203-A (GB)
Title: Improvements in or relating to the dehydrochlorination of benzene hexachloride
IPC: C07C17/25
Filed: 1953-09-30
Abstract: An improved process for the manufacture of 1,2,4-trichlorobenzene comprises the dehydrochlorination of benzene hexachloride by contacting it at an elevated temperature with a catalyst comprising elementary carbon having a high surface-to-volume ratio characterized in that the catalyst is lignite activated carbon.  The catalyst is prepared by heating the lignite to elevated temperatures in the absence of sufficient oxygen to convert the material to carbon monoxide or carbon dioxide.  Reaction temperatures of about 200 DEG to about 450 DEG  C. are referred to.  The pressure may be atmospheric, or as low as about 100 mm. or as high as 3 or 4 atmospheres.  In examples, benzene hexachloride vapour (mixed with 1,2,3- and 1,2,4-trichlorobenzenes, to decrease the space velocity of the benzene hexachloride and minimize carbonization) is passed over activated lignite catalyst heated to 350 DEG  C. and the catalyst life compared with that of charcoal and ordinary activated carbon catalysts.
Patent GB-172441-A (GB)
Title: Improvements in or relating to ships' falls and the like
IPC: B63B23/18
Filed: 1920-09-21
Abstract: 172,441. Blair, T. Sept. 21, 1920. Pulley-blocks. - A guideweight a for preventing jamming of the unloaded lower block of ships falls is provided with leads or loops e adapted to slide over and be guided by the falls j, and means for suspending and releasing it at will so that it is adapted to be suspended adjacent to the upper-block m or to rest on the lower block. The weight is normally suspended from a hook s pivoted at t to the upper block, and engaging an eye q on the weight. When the lower block is to be raised after launching a boat, the hook s is pulled out of engagement with the eye q by a rope u secured to a cleat on the davit, and the weight falls until it rests on the lower block. In a modification, the guide-weight is suspended directly from the rope u which passes through a hole in the guide-weight and is fitted at the end with a small stop weight. Roller guides may be fitted to the weight a or leads e to minimize friction.
Patent GB-152988-A (GB)
Title: Improvements in motor operated starting mechanisms for automobile engines
IPC: F02N15/06
Filed: 1920-09-21
Abstract: 152,988. Metropolitan-Vickers Electrical Co., (Assignees of Hodgkins, C. H., and Kindl, C. H.). Oct. 18, 1919, [Convention date]. Turning-gear.-In an electric starter, a pinion 10 is moved axially into engagement with the toothed fly-wheel 1 by means of a pin-and-slot connexion between the pinion and a sleeve member 5, which is slidably keyed on the armature shaft 4 and is normally held against an abutment 7 by a spring 8. The spring is compressed if the pinion teeth clash with those of the fly-wheel, and also when the pinion is fully in mesh and engages a stop 13. In the form shown, pins 9 on the member 5 engage slots in an extension 11 of the pinion, and the inclination of the slots 12 to the axis may vary as indicated in Fig. 7. In a modification, the pins 9 are carried by the pinion and engage slots in an extension of the member 5.
Patent GB-1292578-A (GB)
Title: Process for the selective oxidation of ketones
IPC: C07C51/245
Filed: 1971-04-19
Abstract: 1292578 Oxidation catalysts LABOFINA SA 19 April 1971 [4 Jan 1971] 27075/71 Heading B1E [Also in Division C2] A catalyst composition comprises a inorganic salt preferably a carboxylate and a cobalt salt in a molar ratio of between 1 and 10% of the manganic salt. An example describes a mixture of manganic acetate and cobaltic or cobaltous acetate.
Patent GB-742559-A (GB)
Title: Improvements relating to the manufacture of white cement
Inventor: HEILMANN THORBJORN
IPC: C04B7/47
Filed: 1953-10-02
Abstract: 742,559. Rotary cement kilns. SMIDTH & CO. AKTIESELSKAB, F. L. Oct. 2, 1953 No. 27099/53. Class 51 (2). [Also in Group V] A rotary kiln for making white cement has a suction pipe 9 for preventing gases produced when a reducing agent is fed through a pipe 4 from passing into the combustion zone. A pipe 6 admits fluid to cool the clinker. In Fig. 2, four pipes project successively further into the discharge end of the kiln and are respectively for the cooling fluid 6A, suction 9A, reducing agent 4A, and burning fuel 10. A pipe 12 can recirculate the drawn-off gases to the kiln above the burning fuel.
Patent GB-318597-A (GB)
IPC: F25B49/02
Filed: 1929-09-06
Abstract: 318,597. Akt.-Ges. Brown, Boveri, et Cie. Sept. 6, 1928, [Convention date]. Regulating or controlling.-The supply of working fluid to the steam turbine or other driving- motor 9 of the centrifugal compressor 1 of a refrigerating machine is controlled by the pressures in the evaporator 7 and the condenser 3. The pressures in the evaporator and the condenser are communicated through pipes 23, 24 to a cylinder 18 containing a spring-pressed piston 19 connected to a sleeve 12. The sleeve co-acts with the piston 13 of a constant-speed governor 14 to control the flow of fluid through a passage 16 to a cylinder having a piston 11 which controls the opening of the steam valve 10 of the driving- motor. Specifications 113,950, [Class 57, Governors &c.], and 181,007, [Class 29, Cooling &c.], are referred to.
Patent GB-879026-A (GB)
Title: Improvements in grooved drums for yarn winding machines
IPC: B65H54/50
Filed: 1958-08-25
Abstract: 879,026. Winding yarns; traverse drums. MASCHINENFABRIK SCHWEITER A. G. Aug. 25, 1958 [Sept. 3, 1957], No. 27190/58. Class 120(2) A grooved traverse drum 1 having pins 3 acting as reinforcing members at the intersection and diversion of the groove is characterized in that holes are drilled into the surface of the drum at an acute angle to the drum axis, to accommodate the pins, the pins bridging the grooves of the drum to provide guiding surfaces for the yarn. The pin may be straight or bent so as to be parallel with the surface of the drum or as shown in Fig. 4 it may have a head 3b provided with a recess 3c to enable the yarn to be guided at the point of intersection of the groove. Fig. 7 shows a pin with a head 3e designed to support the yarn at a point of diversion. The pin may be held in the hole with an adhesive.
Patent GB-856965-A (GB)
Title: Improvements relating to dental root extractors
IPC: A61C3/14
Filed: 1959-08-10
Abstract: 856,965. Dental instruments. KOPP, E. H. Aug. 10, 1959 [Aug. 9, 1958], No. 27264/59. Class 81(2) A dental root extractor comprises a substantially round tapering shaft 2, the operative end of which is a helical portion 8, preferably twisted half a turn about the longitudinal axis of the shaft 2, the depth of the portion 8 being less than half its width. The portion 8 has one sharp edge 5, and a point 6 and is approximately the length of a tooth root. Preferably the portion 8 has one or more longitudinal grooves 4. For use on the upper and lower jaw respectively, the shaft is straight (not shown) or bent at right angles, and may have a smooth or, as shown, knurled finger grip 7. In use, the operator inserts the point 6 in the gap between the tooth root and bony tooth socket and rotates the extractor so that the portion 8 circles round the root, paring it away and simultaneously lifting it.
Patent GB-1312664-A (GB)
Title: Coalescer cartridge and coalescer for oily water
IPC: B01D39/14
Filed: 1970-06-05
Abstract: 1312664 Separating oil from water ESSO RESEARCH & ENG CO 5 June 1970 [24 July 1969] 27315/70 Addition to 1175290 Heading B1D Apparatus for removing oil particles from water includes a cartridge 20 comprising an upstream lipophilic web 2 which coalesces the small oil droplets and a downstream hydrophilic web 6 which breaks up bubbles of water enclosed by oil skins (Fig. 4, not shown). The upstream web may comprise polypropylene fibres, bonded or unbonded, or glass fibres rendered lipophilic by a bonding agent which may be phenolic, acrylic or alkyl amine resin and comprises 7 to 18% of the web. Glass fibres are 3 to 7 microns in diameter and the web is 1 to 3 inches thick and weighs 1 to 3 pounds per cubic foot. The downstream web comprises glass fibres of 30 to 38 microns diameter, unbonded or bonded with hydrophilic binder, weighs 17.5 pounds per cubic foot and is 1 to 3 inches thick. The webs may be spaced apart or touching. The apparatus may be used to treat water discharged from a preliminary settling stage 10 and comprises downstream of cartridge 20 an array of alternate corrugated and flat plates of polypropylene or metal which define horizontal channels in which coalesced oil settles out. Each corrugated plate is welded to the flat plate above only. The plates are inclined across the cylindrical housing 24 (Figs. 7, 8, 9) not shown and the flat plates extend beyond the downstream edges of the corrugated plates and end in lips 40, so that oil is enabled to rise into chamber 46 and water discharges at 50. Upstream chamber 18 collects air and any large oil slugs entering the apparatus.