baber/WOPTO huggingface dataset:
Patent GB-1277990-A (GB)
Title: Article handling apparatus
IPC: B42F7/14
Filed: 1970-04-29
Abstract: 1277990 Filing papers &c SPERRY RAND CORP 29 April 1970 [4 June 1969] 20618/70 Heading B6E The selector mechanism in a filing folder handling apparatus as described in 1,205,124 is modified in that the reciprocable member is driven by a fluid cylinder 56, Fig. 4, and provided with two pairs of symmetrically disposed divergent fingers 51, 52 having inclined faces which are provided with serrations 58, the fingers moving into engagement with the spines of filing folders (57, Fig. 8) through correspondingly arranged slots 40, Fig. 2, in the base 30 of a container 28. The container is provided adjacent its base 30 and front and rear walls 34, 35 with spaced sets of fillets 37 which deflect the spines of the filing folders adjacent the front and rear walls into engagement with the fingers 51, 52.
Patent GB-1336825-A (GB)
Title: Process for the production of heat attenuating glass sheets and a glass sheet produced by the process
IPC: C03C17/40
Filed: 1972-05-03
Abstract: 1336825 Coating glass by vapour deposition SAINT-GOBAIN 3 May 1972 [3 May 19711 20622/72 Heading C7F [Also in Divisions B5 and G2] Glass is coated by vapour deposition with a layer of Au, Ag, or Cu or alloys thereof and then a layer of Al. A further layer of silicon monoxide may be applied. In an example an Au-8% Ni alloy may be used. The glass may be first cleaned with a suspension of cerium oxide in ethylene alcohol. The thickness of the coating is controlled by monitoring the reduction of the coefficient of luminous transmission of the glass, during deposition.
Patent GB-1311689-A (GB)
Title: Can opener
IPC: B67B7/00
Filed: 1970-04-29
Abstract: 1311689 Can openers HOOVER Ltd 29 April 1970 [2 May 1969] 20673/70 Heading B8D In a can opener having a shaft 36 of a can drive-wheel 16 driven by an electric motor through a gear train in a casing 10, the drive wheel, shaft, and a lever handle 42 carrying a cutter wheel 14 are mounted on a support plate 14, which is readily detachably fastened to the casing by manually-operable fasteners 58 and 60 captive on the plate whereby the cutter wheel and drive wheel may be removed for cleaning or replacement. The fasteners each comprise a knob 62 having a body portion 64, which is retained in a bore of the support plate by a retaining washer 68, and a cam key portion 65, which passes through a slot-shaped bore in a casing boss 70 and locks the plate to casing when the fastener is rotated through 90 degrees. The drive-wheel shaft 36 is rotatably-mounted in the support plate and has a flattened end portion 39, which engages in a corresponding slot 28 of the final gear 22 of the gear train on fastening the support plate to the casing. A magnet 54 for holding the cut-away can end is detachably-attached to the support plate by an arm 52.
Patent GB-597290-A (GB)
Title: Improvements in tool supporting means for automatic lathes
IPC: B23Q5/34
Filed: 1945-08-13
Abstract: 597,290. Lathes. TAVANNESMACHINES CO. SOC. ANON. Aug. 13, 1945, No. 20747. Convention date, Aug. 8, 1944. [Class 83 (iii)] In an automatic lathe, having several tools acting radially with respect to the work, at least one tool carrier is capable of vertical and transverse movements. As shown, two sets of tool-holders 11. are mounted on independent compound slides, the vertical slides 7 and 8 being intermittently fed by cams 12 and 13 on shafts 14 and 114 through rocking arms 23 and 24 and a clutch mechanism, and the transverse slides 9 arid 10 by cams 16 and 17 operating members 33 and 34 through connecting rods 35 and 36. The intermittent feed of the tools to the work is arranged through a clutchoperating mechanism wherein a constant speed drive 56 rotates a clutch member 52. This member is engaged by a second clutch member 51 spring loaded and slidably operated by a lever 49 rocked intermittently through a trip 48 in a system of levers by projections on a wheel 18 mounted on the cam-shaft 19. The clutch member is thereby rotated periodically and drives the cam-shafts 14 and 114 in like manner through gearing. An automatic stop in the form of a notched plate 63 coacting with a spring-biassed roller 64 arrests the mechanism for the intervals of the machining operations.
Patent GB-148932-A (GB)
Title: Improvements in or relating to liquid seal shaft packing
IPC: F16J15/40
Filed: 1920-07-10
Abstract: 148,932. Weise S÷hne, and Lawaczeck, F. Aug. 25, 1916, [Convention date]. Stuffing-boxes, substitutes for.-A revolving turbine, pump, or other shaft is packed by a viscous liquid, e.g. oil, maintained at a sufficient pressure by right and left hand screw-threads on the shaft. In the example shown in Fig. 1, oil contained in a chamber E is supplied by a disk F to a thread H, which feeds the oil towards the chamber A to be packed. The escape of oil towards the chamber A is opposed by a thread 1, which is longer and of shorter pitch than the thread H. Leakage of oil to the exterior is prevented by a screw-thread on the periphery of the disk F and a thread K on the shaft. Leakage when the shaft is at rest is prevented by a stuffing-box, or by a sleeve B supported by a diaphragm B' and bearing against a shoulder B<2> on the shaft. In a modification, the disk F is dispensed with, and the sleeve B embraces the threads I, H, K and bears on a shoulder on the shaft to the right of the thread K. The oil is introduced, if necessary under pressure, to a groove between the threads Hand K. In a further modification, the sleeve B embraces the thread I and a part of the thread H, and its end surfaces float between the drum in the chamber A and the casing 0. When the pressure of the oil rises sufficiently to overcome the pressure in the chamber A, the sleeve B is pressed to the left. The oil then escapes between the opposed faces of the sleeve B and the casing 0, and returns to the reservoir E, so that the sleeve B is maintained in equilibrium.
Patent GB-997157-A (GB)
Title: Heating element for thermoplastic materials
IPC: H05B3/00
Filed: 1964-05-20
Abstract: 997,157. Seaming non-metallic sheet material. E. NITTEL. May 20, 1964, No. 20821/64. Heading B5K. [Also in Division H5] A heating element 10 for welding thermoplastics in a continuous, e.g. circular, seam is attached to an air or water-cooled pressure ring 14 by layers 15, 16 of impregnated glass fibre held by clamping rings 17, 18. The arrangement accommodates thermal expansion of the element 10. The element is cut from a sheet, e.g. of chrome-nickel steel, and has integral terminal lugs disposed on a diameter as illustrated in Fig. 1 (not shown). This is said to produce uniform heating round the circumference. The element has a convex surface where it faces the work.
Patent GB-770276-A (GB)
Title: Improvements relating to apparatus for releasing fluids under pressure
Inventor: HENSHAW THOMAS ANTHONY
IPC: A62C13/00
Filed: 1953-07-27
Abstract: 770,276. Stoppers &c. BRITISH VACUUM FLASK CO., Ltd. and HASSID, M. A. June 9, 1954 [June 9, 1953], No. 15838/53. Class 125(3). [Also in Group XIII] Inner and outer containers, e.g. of a plastic material, are joined at their rims with an air space between to form an insulated jug (see Group XIII) and a hollow lid is formed in similar manner but has a skirt with an opening 16 which can be made to register with the jug spout, for pouring, by rotation of the lid. The inner surfaces of either or both of the moulded components 8, 9 of the lid may be silvered and the top 9 may be transparent.
Patent GB-686373-A (GB)
Title: Improvements in or relating to a catalyst for synthesis of hydrocarbons
IPC: B01J23/78
Filed: 1948-08-09
Abstract: Carbon monoxide and hydrogen are converted to higher molecular weight products by contacting a mixture thereof with a fluidized catalyst consisting of pyrophoric plate-like iron particles obtained by the reduction of "mill scale," being the iron oxide scale formed as a film on metallic iron exposed to air at a temperature above red heat. The mill scale may be ground and impregnated with an alkali metal salt before or after reduction. Volumetric ratios of H2/CO may be from 2 to 5 and temperatures of 550-700 DEG  F. and pressures of 100-600 p.s.i. may be employed in the synthesis.  An analysis of products is given for temperatures of 580-640 DEG  F. employing a pressure of 250 p.s.i., a recycle ratio of 1.7 and a H2/CO ratio of 2.6. Filters were located at the top of the reactor in which filters 4.4 to 6.6 per cent of the CO conversion took place.  The Specification as open to inspection under Sect. 91, comprises also the addition of further promoter such as potassium carbonate, preferably in powdered form in increments of 0.1 to 0.5 per cent to the catalyst in the reactor during operation.  This subject-matter does not appear in the Specification as accepted.ALSO:An iron catalyst for the synthesis of hydrocarbon from carbon monoxide and hydrogen consists of plate-like particles of pyrophoric iron obtained by the reduction of "mill scale" with hydrogen at 600 to 100 DEG F. Black iron oxide platelets or "mill scale" is obtained by brushing heated and rolled iron objects which may contain up to 1 per cent of alloying elements such as copper, nickel, manganese, vanadium, chromium, molybdenum, silicon, aluminium and titanium or 10 to 25 per cent of cobalt. The mill scale may be ground and impregnated with 0.5 to 2 per cent of an alkali metal salt prior to reduction. Alternatively impregnation and/or grinding may follow reduction.  The Specification as open to inspection under Sect. 91, comprises also the addition of further promoter preferably in powder form such as potassium carbonate in increments of 0.1 to 0.5 per cent to the catalyst in the reactor during operation.  This subject-matter does not appear in the Specification as accepted.ALSO:Finely divided pyrophoric iron particles are prepared by the reduction of "mill scale" in an atmosphere of hydrogen at 600-1000 DEG F.  The plate-like black iron oxide particles or "mill scale" are removed from heated and rolled iron by brushing, are ground and reduced. Grinding may also follow reduction.
Patent GB-235828-A (GB)
Filed: 1924-09-05
Abstract: Lignite is treated by the process described in Specification 221,559, [Class 32, Distilling &c.], for the production of liquids suitable for making fuels and lubricating oils.  A suspension of the lignite in a liquid vehicle such as water or mineral or tar or other oil is sprayed into the hydrogen or other gas preventing dehydrogenation in a chamber heated to 300-600 DEG  C. and containing a metal catalyst such as tin or tin alloy that is liquid at the reaction temperature. The Specification as open to inspection under Sect. 91 (3) (a) describes also the treatment of coal or other carbonaceous solid, the spraying of the solid by hydrogen, methane, steam, or other hydrogen-containing gas into a tin-lined reaction chamber filled with the same gas at atmospheric or higher pressure, and the heating of a charge of coal and metal catalyst for several hours in a vessel filled with protective gas under pressure.  This subject-matter does not appear in the Specication as accepted.
Patent GB-737527-A (GB)
Title: A method for the manufacture of semi-conductors having excess-conductive and deficitconductive regions with sharp borders
IPC: H01L21/18
Filed: 1953-07-29
Abstract: 737,527. Semi-conductor devices. LICENTIA PATENT-VERWALTUNGS-GES. July 29, 1953 [July 29, 1952], No. 21026/53. Class 37. Sharply defined P-N junctions are made by depositing on the cleaned and polished surface of a crystal of one conductivity type a powder of material of, or which is suited to assume, the opposite conductivity type. The powder is then rapidly melted, preferably by a concentrated beam of high energy charged particles and allowed to crystallize from the base outwards by cooling the crystal from the side opposite to that to which the powder was applied. The powder may consist of the pure crystal, impurities being introduced from a lowpressure gas or vapour containing the impurities or compounds thereof during the melting and recrystallizing processes. Examples given are the application of powdered Ge, made P-type by production in the presence of In vapours, to N-type Ge containing Sb, or vice versa; application of pure Ge powder to Ge crystals containing In or Ga impurities in the presence of lowpressure antimony-hydrogen, and application of Si powder previously subjected to A1 vapour on a Ge crystal containing Sn.
Patent GB-889293-A (GB)
Title: Process for producing stable aqueous solutions of ammonium cyanide
Inventor: HAYASHI IZUMI
IPC: C01C3/00
Filed: 1960-06-15
Abstract: A stable aqueous solution of ammonium cyanide may be prepared by dissolving in water a gas mixture containing hydrogen cyanide and ammonia, ammonia having previously been added to the gas mixture and/or water so that the molt ratio of ammonia to hydrogen cyanide in the solution obtained is not less than 5, calculated on the total free and combined ammonia and hydrogen cyanide. Alternatively, the extra ammonia may be added to the solution. The gas mixture may be obtained by reacting ammonia with methane or carbon monoxide, for example in the presence of an alumina catalyst or a platinum rhodium catalyst.
Patent GB-1134664-A (GB)
Title: Improvements in or relating to manual welding units
Inventor: HESSE GUENTER
IPC: B23K9/29
Filed: 1966-05-12
Abstract: 1,134,664. Welding by fusion. ZENTRALINSTITUT FUR SCHWEISSTECHNIK DER DEUTSCHEN DEMOKRATISCHEN REPUBLIK. 12 May, 1966, No. 21070/66. Heading B3R. In a manual gas shielded arc welding unit, the handle section 11 houses a wire feed mechanism 12 and is wholly or partially doublewalled, the shielding gas passing through a passage formed between the two walls and serving as a coolant. Current is conducted from a cable 18 to the contact and guide tube 15 through the securing bolts of the stator of the feed motor 12. Interchangeable gears are provided between the feed motor 12 and the feed rollers 16 to provide different feed rates. If the tube 15 is removed the unit can be used simply as a wire feed unit. A number of such units in series may feed wire to the welding unit. The feed motor is electric or pneumatic.
Patent GB-406685-A (GB)
Title: Improvements in pipe couplings
IPC: F16L33/22
Filed: 1932-07-27
Abstract: 406,685. Pipe joints. GASKELL & CHAMBERS, Ltd., and WEIGHTMAN, J. S., Dale End, Birmingham. July 27, 1932, No. 21152. [Class 99 (i).] A coupling for connecting a metal pipe 10 to a flexible pipe 20 comprises a short tube 14 having at one end a union connection 15 to the metal pipe and at the other end a socket 19 provided with a slotted resilient portion 22 which is contracted on to the flexible tube by the tapered bore of a nut 25 screwing on to the socket. The socket may have an internal flange 24 to grip the flexible tube and may be screwed on to the tube 14.
Patent GB-1184753-A (GB)
Title: Speed Control of Conveyors, Especially for Sinter Coolers
Inventor: KUHN JUSTUS
IPC: C22B1/26
Filed: 1968-05-03
Abstract: 1,184,753. Automatic level control systems. METALLGESELLSCHAFT A.G. May 3, 1968 [May 6, 1967], No.21157/68. Heading G3R. In an automatic system in which hot material is supplied through a hopper to a moving cell type conveyer cooler, a switch operated by a feeler on rise in level of the material in the hopper above a predetermined value, increases the speed of the conveyer which is thereafter reduced in steps at predetermined time intervals until the feeler operates again. In Fig. 1, hot sinter is discharged by a conveyer belt 1 into a feed hopper 2 which supplies a series of cooling cells 7 in succession. Cooling air is blown through permeable walls of the cells as they are moved from hopper 2 to a discharge point by operation of an electric motor 10. The speed of motor 10 is automatically maintained at a datum value by a tachometer generator 15. If, during the filling of a cooling cell, rise in the level of sinter in the hopper causes a lever 3 to operate a switch 5, the speed of motor 10 is increased by a fixed amount by overriding the speed control system. At the same time, the datum of system 12 is increased so that when the level in hopper 2 falls, due to the increased speed of the cells, the speed falls to a value higher than before and remains at this value until the level rises again. If the level does not rise, switches 15 operate after predetermined time intervals to decrease the speed in steps until the level does rise. Supply of sinter is stopped by a switch 8 which is operated by overflow from an excessively filled hopper. The speed of the cooler cells, which may be displayed by a recorder, may also be manually controlled.
Patent GB-423190-A (GB)
Title: Improvements in photographic cameras for three and four-colour photography
IPC: G03B33/00
Filed: 1933-07-28
Abstract: 423,190. Colour photography. REASON, R. E., and KAPELLA, Ltd., 104, Stoughton Street, Leicester. July 28, 1933, Nos. 21202, 31533, and 34118. Divided out of 418,671. [Class 98 (ii)] A multi-colour camera of the kind adapted to form on a plurality of emulsions images of uniform size, and in which the light entering the camera is divided and distributed through appropriate filters by a plurality of partial plane reflectors so arranged that the virtual images of the emulsions are substantially coincident, is characterized in that a lens member is placed in each secondary axis and fixed relatively to the primary reflector, and in that means are provided by which the emulsions are moved relatively thereto for focusing. As shown, the camera comprises a casing A containing a primary reflector B. Pivoted at G', G<2> are sleeves F<1>, F<2> clampable by a screw Y. Plate holders C<1> .. C' are attached to separate casings D<1> D<2> in which are fixed secondary reflectors E<1>, E2 and which slide in the sleeves F', F<2>. The casing D<1> is moved by a pair of racks L<2> to which it is connected by links P<2> and which are driven by pinions M<2> driven by toothed sectors N<2> mounted on a shaft O rotatable by an external knob. The links P<2> are pivoted to the casing D<1> at Q<2> and provided at their other ends with notches R engaging pins on the racks L<2> disengageable manually by levers S. The casing D<2> is similarly driven from the same pinion M<2>. Each lens mount T has a flange U retained in its seating in the camera by a threaded ring V. The lens iris engages with a ring W externally actuated by a radial arm X co-operating with a scale. The rings W may be connected by gearing for synchronous operation. A focal plane shutter comprises two blinds d<1>, d<2>, one carried on rollers d<3>, d<5>, and the other on rollers d<1>, d<5>, the rollers d<5>, d<6> being co-axial. The shutters may be wound up singly, in pairs or all simultaneously. Switch contacts Z, Z<1> may be provided for electrical release. The colour filters t<1>, t<2> &c. are mounted between the blinds and the secondary reflectors. A dovetailed seating a and an eccentrically pivoted clamp a<1> are provided for the attachment of a transparent window a<2> or a shutter or lens member. The racks and pinions may be connected by screws and nuts, the screws being inter-connected by bevel wheels. Registration marks may be formed on the emulsions by the simultaneous projection on to the emulsions through the mirrors of the images of one or more small crosses. The registration images may be separated from the pictures by the employment of masks and partitions. Specifications 198,958, [Class 97 (i)], and 388,215 are referred to. The second Provisional Specification refers to Specifications 15,107/95, [Class 97], 113,590, 155,640, and 157,037, [all in Class 97 (i)].
Patent GB-706304-A (GB)
Title: New or improved method for producing impregnated mineral wool
Inventor: NYSTROEM ERNST HOLGER BERTIL
IPC: C03C25/14
Filed: 1952-08-23
Abstract: 706,304. Mineral wool. AKTIEBOLAGET STATENS SKOGSINDUSTRIER. Aug. 23, 1952, No. 21227/52. Class 56 A method of making impregnated wool in which a stream of molten slag, glass or rock is brought into contact with and is caught by a gaseous blowing medium which prior to the contact with the molten material has expanded from compressed condition 'through a nozzle into a shoot-like blast, said stream of molten material thereby being converted into a mineral fibre suspension to which an impregnating agent in the form of a thermo-setting synthetic resin is applied, is characterized in that the impregnating agent is supplied without heat-transmitting contact with the means for supplying the blowing medium for spraying the impregnating agent, the impregnating agent being finely suspended in the blowing medium and then being brought into contact with the mineral fibre suspension and absorbed by the mineral fibres.
Patent GB-587078-A (GB)
Title: Improvements relating to salt bath furnaces
IPC: C21D1/46
Filed: 1944-11-01
Abstract: 587,078. Salt-bath furnaces. GRENE, G. H. S., and WILD-BARFIELD ELECTRIC FURNACES, Ltd. Nov. 1, 1944, No. 21369. [Class 51 (ii)] A salt-bath furnace for treating solid workpieces is heated by electrodes and is, together with the electrodes tiltable to remove the salt. As shown, the bath 14 is mounted on trunnions in brackets 11 projecting from a fixed casing 1 which houses the electrical gear and to which is removably attached a post 22 having a branch 23 from which the work-pieces are suspended. Current is supplied to the electrodes through blade connections 16 which co-operate with knife switch elements so that the connection is broken when the bath is tilted or removed. The bath carries a removable mould 15 to receive the salt when the bath is tilted and is covered by a hood 19 having a wire brush or perforated metal inspection window 21.
Patent GB-975685-A (GB)
Title: Purifying crystalline olefin polymers
IPC: C08F6/02
Filed: 1962-06-04
Abstract: Crystalline olefin polymers are purified by treating the dry polymer substantially free of polymerization solvent at a temperature between 60 DEG  and 130 DEG C. with up to 20% by weight with respect to the polymer of an alcohol so as to impregnate but not wet the polymer e.g. by a fluidized bed technique, and then washing the polymer with an aqueous medium.  The olefin polymer may be polyethylene, polypropylene, polybutene-1, or polypentene. The polymers may be formed by bulk techniques.  Alcohols mentioned are methanol, ethanol, n-propanol, iso-propanol, iso-butanol, sec.-butanol, 2-ethylhexanol, ethylene glycol, and glycerol.  The aqueous medium generally contains a surface-active agent such as bis-(2-ethyl-hexyl) sodium sulphosuccinate.  A flow diagram is included in the Specification for effecting the process in a continuous manner.  Specification 954,078 is referred to.
Patent GB-753097-A (GB)
Title: Improvements in combustion chambers burning pulverised fuel
IPC: F23C1/00
Filed: 1954-07-22
Abstract: 753,097. Pulverulent-fuel furnaces. ELECTRICITE DE FRANCE. July 22, 1954 [Sept. 9, 1953], No. 21476/54. Class 51(1). In a pulverised-fuel combustion chamber 1 lined with water tubes and fired by horizontally directed burners 2, the latter are arranged todirect their flames towards the lower end portion of a depending hollow internally-cooled member A, such lower portion being covered with refractory material 5 on which a layer of molten slag forms and from the tip of which the slag drops into a water sump 13. As shown in Fig. 1, the member A which is suspended from a beam B of the boiler room framework, is cooled by air from a pipe 6 passing down the annular space 4 and up the central tube 3 to a pipe 7 which delivers the heated air to a housing 8 around the burner 2. Fig. 3 shows a modification in which the combustion chamber is square in horizontal section and fired by corner burners 2 so disposed that the paths of the flames are offset from the central axis of the member A. Three further modifications are described in which the member A is (1) mounted to rotate about a vertical axis, (2) suspended from a weighing machine, and (3) suspended from a mechanical handling apparatus such as a winch.