baber/WOPTO huggingface dataset:
Patent GB-601968-A (GB)
Title: Improvements in the extraction of alumina from its ores
IPC: C01F7/08
Filed: 1944-12-08
Abstract: In a process for the extraction of alumina from aluminiferous materials such as kaolin, marl, clays, shales, feldspars, and impure bauxite involving the formation of a clinker of sodium aluminate, the ground clinker is leached with an aqueous solution of a soluble sugar.  The ground mineral may be mixed with lime, if little or no calcium be already present, and enough aqueous sodium carbonate to cause all the aluminium to form sodium aluminate. The resulting slurry is dried, sintered, and ground.  A solution of sodium carbonate is added to bring the Na2O/Al2O3 ratio to between 1.5 and 1.9 to 1, sugar being added to the solution in the proportion of 0.2 to 2.0 per cent by weight of the sinter.  The sugar may be maltose, dextrose, or sucrose, or comprise molasses or corn syrup.  The resulting solution of sodium aluminate is separated from the insoluble residue, and may be treated with carbon dioxide to precipitate aluminium hydroxide, the by-product sodium carbonate being used in the earlier stages of the process.
Patent GB-916307-A (GB)
Title: Improvements relating to adjustable eccentrics
IPC: F16H21/20
Filed: 1961-07-07
Abstract: 916,307. Toothed gearing. WALLACE & TIERNAN Inc. July 7, 1961 [July 8, 1960], No. 24675/61. Class 80 (1). [Also in Groups XXVI and XXVIII] Backlash between a worm-wheel 35, Fig. 4, forming part of an eccentric (see Group XXVI) and its driving worm 34 is controlled by vertical and horizontal adjustment of the worm relative to the worm-wheel. A pair of shafts 86 are mounted by means of concentric cylindrical portions 89 in cylindrical holes in the eccentric housing 30 andare formed with eccentric cylindrical end portions 87 which engage in corresponding holes 84,85, Fig. 14, in caps 80 secured to the housing 30 by screws 82 and carrying bearings 36 supporting the worm shaft 12. With the screws 82 slackened adjustment of the worm is effected by rotating the shafts 86 by means of a screwdriver inserted in a groove 88 at the end of each shaft.
Patent GB-381298-A (GB)
Title: Improvements relating to the surfacing of roads, paths and the like
IPC: E01C7/18
Filed: 1931-09-04
Abstract: A mineral aggregate graded to eliminate voids is heated in a mixer till thoroughly dry, a preheated bituminous binder is added, and the temperature is raised during mixing to such a degree that the binder becomes a mobile liquid.  The product is laid while hot.  One preferred binder is a coal tar product intermediate between prepared tar and pitch, a small proportion of bitumen being optionally added. The aggregate in this case is heated to 160-200 DEG  F. and the binder to 100-150 DEG  F., and the temperature is raised during mixing to 240-260 DEG  F.  Alternatively a residual bitumen having a penetration of 67 may be used, in which case the aggregate is heated to 280-320 DEG  F., and the binder to 200-280 DEG  F. and the final temperature is 340-360 DEG  F.  The aggregate may consist of sand alone or of sand, granite dust, and gravel or granite chips.  The proportion of binder used is 7-15 per cent by weight.
Patent GB-717134-A (GB)
Title: Vehicles with hydraulically operated body tipping and loader means
Inventor: MCGETTIGAN DENNIS
IPC: F15B13/06
Filed: 1951-10-24
Abstract: 717,134. Manually actuated valves. TELEHOIST, Ltd. Aug. 11, 1952 [Oct. 24, 1951], No. 24830/51. Class 135. [Also in Group XXX] A vehicle loader and tipping means is selectively operated by a hydraulic system including two parts in parallel and in series with a pump and having a selector valve at a junction. As shown.in Fig. 1, fluid from a pump e passes by a pipe c to a selector valve f which allows fluid to flow either by pipe b to operate loader means h or by pipe a to body tipping means g. A compensating tank i is provided. The selector valve f shown in Fig. 2 comprises a casing j having a passage k communicating with the pipe c and with two parallel passages m and n with outlets o and p respectively to pipes a and b. In the passage m is a ball s with a seat r and abutting a member t on a spring u. The ball valve can be unseated by a stem v passing through a gland w and operated by a cam x on a rod y with a handle z. The passage n has similarly a ball valve 4 unseated by a cam 9 on the rod. The cams are arranged so that only one valve is operated at a time. Control of the vehicle tipping and loader means is effected by the valves. Alternatively the selector value may be a manually operated two-way valve of the rotary plug type.
Patent GB-832328-A (GB)
Title: Improvements in and relating to milling cutters
IPC: B23C5/24
Filed: 1958-08-01
Abstract: 832,328. Milling-cutters. BEGLE, H. E. Aug. 1, 1958 [Aug. 14, 1957], No. 24929/58. Addition to 667,936. Class 83 (3). The milling-cutter of the parent Specification has the blades 2 secured by wedges 7 engaging the trailing faces of the blades and secured by screws 9. The body 1 of the cutter is cut away at 11 adjacent the leading faces of the blades to provide swarf clearance, and up to half of the leading face of each blade may be exposed.
Patent GB-1435676-A (GB)
Title: Polyisocyanurate-urethane foams
IPC: C08J9/02
Filed: 1974-06-05
Abstract: 1435676 Isocyanurate - urethane foam OWENS - CORNING FIBERGLAS CORP 5 June 1974 [18 June 1973] 24938/74 Heading C3R Isocyanurate-urethane foams prepared at an NCO/OH ratio of from 4/1 to 50/1 comprise 3 to 20% by weight of elementary sulphur which reduces the amount of smoke generated under fire conditions. The foams may be prepared by one-shot or prepolymer techniques in the presence of conventional blowing agents and trimerization catalysts.
Patent GB-1510932-A (GB)
Title: Fuel composition
IPC: C10L1/188
Filed: 1976-06-16
Abstract: 1510932 Fuel composition VSESOJUZNY N I INST PO PERERABOTKE NEFTI 16 June 1976 24954/76 Heading C5G A fuel composition consists of 0À002 to 0À01 weight per cent distilled naphthenic acids (b.p. 140 to 220‹C), the balance bring a hydrotreated fuel consisting of kerosene fractions with a boiling range of 140 to 280‹C
Patent GB-1168633-A (GB)
Title: Means for Transferring Container or Other Bodies from One Supporting Surface to Another.
Inventor: MURFITT RALPH
IPC: B60P1/64
Filed: 1966-06-06
Abstract: 1,168,633. Loading and unloading containers; reciprocating conveyers. R. MURFITT Ltd. 6 June, 1967 [6 June, 1966], No. 25110/66. Headings B8A and B8E. Containers are transferred to and from a road vehicle by means of a transfer mechanism working substantially within the confines of the load supporting surface of the vehicle. The transfer mechanism comprises a trolley 10 guided by rollers 26, 27 within a guideway 9 at a level below that of the upper surface 40 thereof, which surface acts as the load supporting surface. Adjacent each end of the trolley are apertures 25 releasably engageable by couplings 48 each comprising a double-ended arm 54 pivotally mounted and biased by springs 57 into two trolley engaging positions each appropriate to the direction of movement of the trolley. The coupling is automatically disengaged from the trolley on appropriate reversal of the trolley. A disc 53 mounted on said coupling 48 releasably engages in an aperture 64 in the corner mountings 66 of the container. The trolley is coupled by a cable 12a, 12b to a motor M whereby to reciprocate the trolley transverse of the vehicle to effect a stepwise movement of the container. Jacks (46), (47), (Fig. 2, not shown), may be used to level the vehicle with the surface from or to which the container is to be transferred. In an alternative embodiment, Fig. 18 (not shown) the trolley (72) is mounted for movement in guideways (74), which guideways are movable, by hydraulic rams (94), in the direction of movement of the trolley to bridge any gap between the vehicle and the surface to or from which the container is to be transferred. The guideways (74) are guided by slots (91) therein in engagement with T-pieces (88) affixed to the transverse member (71) of the vehicle.
Patent GB-713094-A (GB)
Title: Improvements in or relating to starter systems
Inventor: LOMBARD ADRIEN ALBERT
IPC: C21C1/10
Filed: 1952-10-13
Abstract: 713,094. Gas turbine plant. ROLLS-ROYCE, Ltd. Oct. 13, 1952 [Oct. 26, 1951], No. 25156/51. Class 110(3) [Also in Group XXVII] In a starter system for a reaction-propulsion aircraft gas turbine engine comprising a starter motor 15 and a gear mechanism 17 connected between the motor 15 and the engine whereby during starting the motor drives a turbine/compressor rotor assembly 11a, 10a, respectively, of the engine, the gear mechanism comprises a first geartrain (see Group XXVII) giving a first ratio of motor to rotor assembly speed suitable for starting the engine on the ground and a second ratio less than the first one for engine starting during flight, and means, for example reversal of motor 15 or axial movement of one of the shafts of mechanism 17, for selecting the desired gear train. The motor 15, which may be an electrical machine or a turbine, is coupled to the rotor assembly by a clutch. 16. Exhaust gases from turbine 11 flow to atmosphere through a nozzle 14.
Patent GB-644275-A (GB)
Title: Improvements in fertilizer spreaders
IPC: A01C15/18
Filed: 1948-09-28
Abstract: 644,275. Manure distributers. KALLER, S. J. Sept. 28, 1948, No. 25243. [Class 6(i)] A fertilizer distributer comprises a hopper 1 from which a pair of vaned comminuting rollers 5 feed the material to endless belts 10 running in outwardly-shelving, transverse flutes 11, the material being fed over the upper edges of the flutes by vanes 20 carried by rotary shafts 21. The belts carry flaps 12 which urge the material outwardly, and the depth of the flutes decreases in the outward direction. The machine is mounted on three wheels, the drive to the belts, the rollers 5 and the distributing shafts 21 being derived from the rear wheels 2 through gearing 8, 13, 14 and 6. The flutes have hinges 24 so as to be foldable for transport and the: shafts 21 are correspondingly jointed at 26.
Patent GB-879018-A (GB)
Title: Improvements in and relating to dampers for spinning-and twining-spindle sleeves
IPC: D01H7/12
Filed: 1960-07-20
Abstract: 879,018. Resilient mountings; vibration dampers. VERWALTUNGSGESELLSCHAFT DER WERKZEUGMASCHINENFABRIK OERLIKON. July 20, 1960 [July 30, 1959], No. 25275/60. Class 108(3). A resilient bush 9 Fig. 1 supporting a spindle sleeve 8 of a spinning or twining machine comprises a stepped strip Fig. 4, of resilient material which when coiled produces a series of coaxial layers to maintain the sleeve 8 centrally of the housing 1. The strip may have excrescences 12 on one face which engage the smooth opposite face when in position. The interstices are filled with oil which on movement of the sleeve 8 flows from side-to-side to produce a damping effect.
Patent GB-890304-A (GB)
Title: Improvements relating to boards of resin-impregnated material
Inventor: WOOLLER ARNOLD
IPC: B44C5/04
Filed: 1959-07-23
Abstract: 890,304. Ornamental plates. BRITISH TRANSPORT COMMISSION. July 19, 1960 [July 23, 1959], No. 25338/59. Class 20(3) [Also in Group VIII] Boards of synthetic resin impregnated material such as kraft paper, asbestos sheet, sisal or other jute fibre mats or textile cloth, but preferably glass cloth or glass fibre mats, are made by enclosing a sheet or sheets of the material in an envelope, for example comprising a pair of cellulose acetate sheets slightly larger than the enclosed sheets closed on three edges by adhesive tape, pouring a liquid synthetic resin such as a styrene-cross-linked polyester or an epoxy resin, into the envelope, compressing it to expel occluded air, and allowing the resin to set, with or without mild heating. The envelope is preferably compressed by rolling in a slightly inclined position,' open end uppermost, and is then supported horizontally and lightly pressed, e.g. with a flat glass plate, during setting of the resin. The envelope may be thereafter removed or retained until the board is to be used. Ornamented paper sheets which may be coloured, or become transparent in the resin used, may be placed on one or both sides of the reinforcing material, or one sheet may be placed between two layers of the reinforcing material.
Patent GB-630735-A (GB)
Title: An improved method of fusing materials such as glass
IPC: E03C1/24
Filed: 1946-08-27
Abstract: A bath of molten silicates such as glass is prevented from attacking the refractory wall of its receptacle, or any other part immersed therein, by a protective coating maintained on the surface of the wall or part by electrolysis, using the wall or part as anode and the molten bath as electrolyte.  The current passed must be sufficient to ensure deposition of the silica, boric oxide or other coating at a rate at least equal to that at which these materials are dissolved by the bath.  Provided the receptacle wall is lined with a good conductor, the substratum thereof may comprise a refractory inferior to that normally used; the wall may be formed of or lined with a carbon base material such as graphite or silicon carbide, or one or more rare earth oxides, mixed or not with other oxides (e.g. sirconia, magnesia, 6 : 4).  The cathode may comprise a water-cooled iron tube or (in an electric furnace heated by passage of current through the bath) one of the heating current electrodes.  Reference has been directed by the Comptroller to Specification 597,840, (Group IX).
Patent GB-454464-A (GB)
Title: Improved motor arrangement for electrically driven vehicles
IPC: B60K17/14
Filed: 1935-09-16
Abstract: 454,464. Electric motor wheels. TENNANT, W. J., 111, Hatton Garden, London.-(Tatra Works Ltd. Motor Car & Railway Carriage & Wagon Builders; 200, Kartouzska, Smichov, Prague) Sept. 16, 1935, No. 25644. [Class 79 (iii)] A trolly-bus or other vehicle in which each driving wheel 14 has an electric motor 4, 5 disposed inside the rim of the wheel, is characterized in that the motor and its wheel are mounted on the end of a half-axle 1 swinging in a transverse plane and pivoted at or near the longitudinal axis of the vehicle. In the construction shown the half-axle is pivoted at 2 to a central frame member 3, and its inner end may be straight as shown in full lines or bent as shown in broken lines. The half-axle is preferably hollow to contain the motor leads and the motor stator 4 is fixed on its end. The rotor 5 drives the wheel hub 9 through non-epicyclic reducing gearing, a pinion 6 on the rotor and internal teeth 8 on the wheel hub both engaging with gears 7 mounted on fixed spindles. The hub is provided with a brake drum 10 and a removable cover 13 through which the motor may be inspected or removed.
Patent GB-584292-A (GB)
Title: Improvements in centrifuging apparatus
IPC: B04B1/00
Filed: 1944-12-22
Abstract: 584,292. Centrifugal separators. TECALEMIT, Ltd., and LE CLAIR, C. C. S. Dec. 22, 1944, No. 25820. [Class 23] A centrifuge for cleaning liquids under pressure comprises inlet and outlet pipes 7, 9, which also form the trunnions of the centrifuge and are mounted in bearings 12, 13, conical passages 21, 23 which lead the fluid to and from the annular separating chamber 22 and a conical diaphragm 24 which divides off the outer layer of the liquid, carrying the heavy impurities, and leads it to an outlet chamber 50. The centrifuge is rotated by means of a gear-wheel 14A. The discharge from the chamber 50 may be free or be controlled by a spring-loaded valve 30 subjected on one side to the pressure in the chamber 50 and on the other side to the pressure in the main stream at 28. A similar diaphragm and valve may be provided on the inlet side. In an alternative, the diaphragm is continued by a cylindrical part spaced from the walls 3, 5 and access to the space between this part and the walls 3, 5 is by radial ports. Slipping and freewheel clutches as described in Specification 569,650 may be incorporated in the drive.
Patent GB-1428573-A (GB)
Title: Dial plate for a timepiece
IPC: G04B19/12
Filed: 1974-06-11
Abstract: 1428573 Timepiece dials DAINI SEIKOSHA KK 11 June 1974 [20 June 1973] 25826/74 Heading G3T A dial comprises a base plate 1, e.g. of metal, having walls 2, 3 which extend therefrom and define a space containing a hardened layer 4 of resin material. As shown the walls are peripheral but further arcuate walls (10), Fig. 6 (not shown), may divide the dial into areas containing resin of different colours. The walls may be pressed or cast integrally with the plate 1, or attached thereto by welding or adhesive. The wall 3 defines a central aperture la. The plate surface in contact with the resin may be a rough surface (5), Fig. 3 (not shown). Index marks (7, 9), Figs. 4, 5 (not shown) may be attached to the plate 1 or integral therewith and visible through the layer 4, or marks (6), (Fig. 3) may be printed on the resin surface.
Patent GB-230881-A (GB)
Title: Improvements in means for correcting printing plates
IPC: B41M9/00
Filed: 1923-10-16
Abstract: 230,881. Claybourn, L. W. Oct. 16, 1923. Chisels.-Tools 71, Figs. 1 and 4, for impacting the back of a curved printing-plate 31 to press low portions of the printing-face outwards into the correct elevation, have convex faces preferably formed with protuberances 65, Fig. 4, of small area so that the metal of the plate may enter the depressions 66 between the protuberances, thereby avoiding distortion of the printing- surface bv excessive lateral flow of the metal. A series of tools having different forms and spacing of the protuberances may be provided. The protuberances may be square or may be elongated, either along the curvature of the tool or transversely thereto, and may be arranged in a single line or in a series of parallel lines according to the shape and size of the part to be treated. If a single point such as a single letter is to be raised, a tool having a single blunted point may be employed.
Patent GB-1091718-A (GB)
Title: Apparatus for dispensing articles
IPC: B23P19/00
Filed: 1966-06-10
Abstract: 1,091,718. Discharging articles from shoots and hoppers; pneumatic conveyers. CLYDE CORPORATION. June 10, 1966 [July 19, 1965], No. 25904/66. Headings B8A and B8S. Apparatus for transferring articles, e.g. nuts, washers or discs, from a track to a pneumatic tube comprises a guideway extending downwardly from the track to the tube, a pin 86, Fig. 8, mounted for movement laterally of the guideway between a position in which an article is engaged by the pin and a position in which the article is disengaged, a gate 54 mounted for movement laterally of the guideway between a position in which the guideway is closed and a position in which the guideway is open, the pin 86 and the gate 54 being operated to form an escapement whereby the articles are admitted one at a time to the tube, and means for introducing air under pressure through a port 108 when the guideway is closed by the gate 54, for propelling an article through the tube. The articles are fed in succession to the track 26, Fig. 1, from a hopper 22, which is described as vibratory but may be rotary or oscillating, the track being formed by a flexible tube so that it vibrates with the hopper. The pin 86 and the gate 54 are secured to a cross-head 66 which is connected to a pneumatically operated, spring-loaded piston 62, Fig. 5, so that an article released by the pin 86 falls on to the gate 54 and then through an opening 58 in the latter into the tube 30. Air passes to the piston through a fitting 98 and to the port 108 through passageways 102, 104, 106, a valve pin 110 being slidably disposed in the passageway 102 and being spring-loaded into engagement with the cross-head 66 so as to follow the latter to control the air flow to the port 108. The loading spring 112 prevents bottoming of the pin 110 against the end of passageway 102 and a screw 118 adjustably controls the amount of air passing. Controls are provided at the delivery end of the tube 30, e.g. at a tool such as a nut runner, which can be actuated to control the air to the piston 62 so that an article is delivered upon demand. The surfaces defining the guideway have a closer tolerance with respect to the articles, to prevent tilting thereof, then those of the tube 30 which although sufficient to keep the articles correctly orientated permits the tube, which is flexible and may be the same as the tube forming the track 26, to be bent, the greater tolerance also preventing excess acceleration of the articles in the tube 30. In a second embodiment, Figs. 10, 11 (not shown), the pin 86 is replaced by a spring-loaded pin (86a) disposed in a guide (122) secured to the crosshead (66a) so that the engagement is frictional.
Patent GB-802846-A (GB)
Title: Process for recovering hydrazine
IPC: C01B21/16
Filed: 1956-08-24
Abstract: Anhydrous hydrazine is recovered from a liquid mixture consisting essentially of hydrazine, ammonia, and ammonium chloride, by cooling this mixture to a temperature determined by the composition so that a solid phase, consisting of hydrazine-free crystals containing ammonium chloride, having the composition NH4Cl.3NH3, are formed, the mother liquor remaining having the mol. ratio of hydrazine to ammonium chloride greater than 1 : 1.  The solid phase is removed, and anhydrous hydrazine is recovered from the liquid by distillation. Ammonia is recovered in the same fashion.  The hydrazine mixture may be obtained by the method of U.S.A. Specification 2,710,248 in which gaseous ammonia and gaseous chlorine react to form a gaseous mixture of ammonia and chloramine, and solid ammonium chloride, which last is removed, the remainder is condensed to yield chloramine is liquid ammonia, whereby anhydrous hydrazine is formed.