baber/WOPTO huggingface dataset:
Patent GB-835064-A (GB)
Title: Improvements in or relating to apparatus for successively feeding quantities of fine-grained or pulverulent materials
Inventor: BLACKMAN PAUL RUSSELL
IPC: C21C7/00
Filed: 1957-06-12
Abstract: 835,064. Feeding materials successively. AIR REDUCTION CO. Inc. June 12, 1957, No. 18604/57. Class 78 (1). Different materials in inner hopper 31 and to outer hopper 13 are fed successively without admixing to air nozzle 69 which blows the materials, one following the other, through injection tube 79 into a liquid. Hopper 31 is supported inside hopper 13 by spacers 32 to form an annular separating gap 37. The dimension is so chosen that, when valve 55 is opened, the inner material flows down from the inner hopper through orifice 65, and is ejected at 79 by air from nozzle 69, whilst the outer material stays immobile. After the inner hopper has thus emptied itself, the outer hopper commences automatically to empty itself, the material passing through gap 37 and being in turn ejected at 79 by air nozzle 69. Air is admitted at 41 into hopper 13 so as to assist the discharge of the two materials, which latter are introduced at 23, the plug 39 being removed for charging the inner hopper or for allowing compressed air from 41 to discharge the material in said inner hopper.
Patent GB-1408982-A (GB)
Title: Portable automotive spark voltage tester
IPC: H01T13/60
Filed: 1973-04-18
Abstract: 1408982 Testing spark plugs N G FESTOS 18 April 1973 18605/73 Heading G1U A device for measuring spark plug voltages in situ comprises a capacitive pick-up 15 connected to the plug lead 16, a probe 12 connected to the pick-up which contains a rectifier diode (25) and choke (28), Fig.2 (not shown) and a portable test set 10 containing a capacitor 27 shunted across a direct-current meter 11 which also has a shunt resistor (30). The choke and capacitor provide high frequency filtering of the rectified pulses and the shunt resistor (30) controls the meter current.
Patent GB-855065-A (GB)
Title: Manganese pentacarbonyl hydride and a process for its preparation
Inventor: HIEBER WALTER
IPC: C01G45/04
Filed: 1958-06-11
Abstract: Manganese pentacarbonyl hydride (Mn(CO)5).H is prepared by reacting manganese pentacarbonyl with an alcoholic solution of an alkali metal or alkaline earth metal hydroxide and treating the pentacarbonyl manganate thus formed with a non-oxidising inorganic or organic acid, an acid salt or other acid media whose aqueous solution contains hydrazin ions.  Manganese pentacarbonyl is reacted suitably with an alcoholic solution of a hydroxide of Na, K, Li, Rb, or Cs or an alkaline earth metal, e.g. Ca or Ba and methanol, ethanol or propanol, preferably methanol.  The resulting solution, containing a pentacarbonyl manganate, may be treated per se with the acid, acid salt or other acid media, or the pentacarbonyl manganate salt may be isolated by evaporation of the solvent and then treated to yield manganese pentacarbonyl hydride.  Alternatively, the pentacarbonyl manganate solution may be treated with complexes containing large-volumed cations, e.g. tri-orthophenanthroline nickel (II) salts or stable cation complexes, e.g. (Cr(C6H6)2)+ or (Co(C5H5)2)+, and the resulting complex compound which precipitates being separated and treated with acid to yield the manganese pentacarbonyl.  Reference is made to the reaction of the manganese pentacarbonyl hydride with diazo methane to yield a compound of the formula Mn(CO)5.CH3.
Patent GB-1143487-A (GB)
Title: Apparatus for detecting the impact of a workpiece or other element
Inventor: WINTRISS GEORGE
IPC: H01H35/14
Filed: 1966-04-28
Abstract: 1,143,487. Inertia switches. INDUSTRIONICS CONTROLS Inc. 28 April, 1966, No. 18662/66. Heading H1N. An impact detector, e.g. for recording an impact produced by a workpiece, comprises a metal cup 10, Fig. 1, closed by a metal plug 24, and provided with a fixed contact block 32 and movable contact block 54 which reciprocates axially when the cup 10 is jarred owing to an impaction on a plate 64 or on the cup itself. The periphery of block 54 is biased by a spring 56 into contact with block 32. On impact, contact is momentarily broken between blocks 32 and 54, or the contact pressure is reduced. Due to elastic forces produced by the impact, the contacts may " chatter." In a modification (Fig. 3), the movable contact block (54<SP>1</SP>) has a complete face contacting the fixed contact block (72) which is a permanent magnet. In a further modification (Fig. 4), a movable contact block (92) is held out of contact with a fixed contact block (82) by a spring (94). On impact, the blocks momentarily contact. The impact detector is connected in a circuit (Fig. 5 or 6) containing an apparatus that uses a detected voltage pulse. The effective length of the voltage pulse is increased by a circuit (Fig. 7) including two transistors and a reed relay.
Patent GB-112909-A (GB)
Title: Improvements in Gas Producers.
Inventor: THUMAN FREDERICK
IPC: C10J3/34
Filed: 1917-09-25
Abstract: 112,909. Thuman, F. Sept. 25, 1917. Grates; ash-pans.-In a gas producer of the kind in which ashes, clinkers, &c. are removed by a rotating ash-pan upon which is eccentrically mounted a grate which serves as a distributor for the blast, and as an ash crusher, the ash-pan is formed with an eccentric aperture through which the grate, projects and which causes the grate to have a gyrating motion when the pan is rotated. The grate may be coupled to the pan when desired and. it can be adjusted vertically. The grate is also fitted with means for proportioning the air and steam supply to various parts of the fuel bed. As shown the grate f is eccentrically disposed in the ash-pan b, which is rotated on rollers c by gearing d. The grate f is anchored by means of a ball joint g which is concentric to the pan b and is provided with packing rings g<1> to permit of vertical adjustment of the grate. The pan b is formed with a flange b<1> provided with ribs b<2> which leave an air space k for the blast, and, when the grate f is not connected to the pan, clinkers are ground between the grate ribs b<2> thereby keeping the air spaces clear. The grate may be coupled to the flange b<1> by a catch h which is accessible through a hand hole i in an air-tight chamber e. The air and steam blast is admitted to the producer through holes f<1> and through the space k by means of an air pipe and steam pipe p, the blast being proportioned by a shutter f<2> and a valve q which may also control the supply of steam from an additional pipe s. In a modification a greater space for the blast is left between the grate f and pan b, by employing a pan with a larger ring. b<1>, which is fitted at the top with an inner smaller ring which causes the grate to gyrate when the pan rotates but allows the blast to pass radially towards the outside of the producer. The grate may be cooled by water as described in Specification 102,597 and the temperature and condition of the grate may be observed through a sight-cock w.
Patent GB-959171-A (GB)
Title: Improvements in flail harvesting implements and flails for such implements
IPC: A01D25/00
Filed: 1963-05-13
Abstract: 959,171. Root-crop harvesters; forage-harvesters. INTERNATIONAL HARVESTER CO. May 13, 1963 [May 29, 1962], No. 18819/63. Heading A1F. In a beet-harvester of the kind wherein a pair of rearwardly-convergent wheels co-operate to prise the crop from the ground, a rotary flail 11 is provided to impel the lifted crop on to a conveyer 22, the flail comprising a plurality of flexible members 33 each having an inherent double curvature, both in the plane of rotation and transverse thereto, and being rotated so that the convex faces of the flail members contact the crop. Each lifting wheel has a castellated rim 21 and spokes 16 and is mounted obliquely on a standard carried by the main frame 27. The flails are formed of rubber-tyre material, which has the necessary convex shape as well as a tread-surface 34 on the leading side. The flails may also be employed in a forage-harvester.
Patent GB-743691-A (GB)
Title: Improvements in or relating to the dressing of ores
IPC: B03B1/00
Filed: 1953-07-07
Abstract: Ores and ore concentrates are subjected to kneading under addition of water whereby the softer constituents are separated from the harder constituents and form an aqueous pulp from which the harder and softer constituents are separated by a method based on the difference in specific gravity of the particles, e.g. by settling or centrifuging followed by recovery of the softer particles in a filter.  The raw material is preferably crushed to approximately 1 m.m. size before kneading with a mixing screw in a trough and water is gradually added to the trough during kneading to give a final water content of approximately 50 per cent by weight.  Examples are given of the application of the invention to recovery of iron oxide from a haematite ore and to removal of iron oxide from a titaniferous ore which had been previously treated to free iron oxide by reduction and oxidation.
Patent GB-752860-A (GB)
Title: A process for reclaiming siloxane elastomers
Filed: 1954-06-28
Abstract: In recovering the siloxane polymer from a filled vulcanized organosiloxane elastomer, the elastomer is contacted with a solution of anhydrous hydrogen chloride in a liquid hydrocarbon or chlorinated hydrocarbon solvent until the elastomer has disintegrated, and the siloxane is then separated in known manner from the filler and solvent, if desired after neutralization of the acid.  The process is applicable to the stripping of siloxane elastomers from metal backings without corroding the surface of the metal.  The process may be effected by shredding the elastomer, placing it in the solvent and bubbling anhydrous HCl into the mixture, or by adding the siloxane elastomer pieces of a solution of HCl, or by continuous extraction in a Soxhlet apparatus.  The solvents specified are benzene, toluene, xylene, cyclohexane, tetrahydronaphthalene, octane, dodecane, tertiary butyl chloride, chloroform, carbon tetrachloride, methylene chloride, tetrachloroethylene, chlorobenzene, and dichlorobenzenes. The siloxanes recovered are largely cyclics which may be re-used, for example in preparing elastomers, electrical insulation, water repellants, and greases.  Examples are given.
Patent GB-383587-A (GB)
Title: A liquid regulating device for washing machines
IPC: D06F39/08
Filed: 1932-07-05
Abstract: 383,587. Washing-machines. TREULIN, A. KAEGI-, Pfaffikon, Schwyz, Switzerland. July 5, 1932, No. 18949. Addition to 316,294, [Class 138 (ii), Washing, mangling, &c.]. [Class 138 (ii).] The liquid collecting and directing channel 3 described in the parent Specification forms the upper end of an electricallyheated jacket-like rinsing water reservoir 2 secured inside the boiler 1 and formed with inlet and outlet apertures 4, 6 and a drain cock 9.
Patent GB-771123-A (GB)
Title: Improvements relating to laminated vinyl resin sheet material suitable for floor covering
Inventor: GRIFFITHS LESLIE HERBERT
IPC: D06N7/00
Filed: 1954-06-29
Abstract: 771,123. Laminated materials. SEMTEX, Ltd. June 10, 1955 [June 29, 1954], No. 18989/54. Class 140. A laminated material suitable for a floor covering is made by hot-pressing on to a backing sheet consisting of a vinyl resin composition containing a filler and a plasticizer, a top layer consisting of sections of coloured vinyl resin sheeting containing a filler and plasticizer assembled edge to edge to form a pattern showing differences in colour between constituent sections. The top layer sections, which may be differently coloured or differently oriented marbled sections, may be joined at their edges before, or during union with the backing sheet. The vinyl resin may be polyvinyl chloride or a copolymer of vinyl chloride with vinyl acetate or vinylidene chloride. The plasticizer may be tricresyl phosphate and the filler may be whiting, powdered limestone, asbestos fibre, sawdust, cork flour, nut-shell flour, shredded wood fibres, granite dust, slate dust, barytes, talc, china clay, or silica flour. Blown vegetable oils, naphthalene-formaldehyde resin, or coumarone resin may be added. Colouring pigments specified are basic lead carbonate, titanium dioxide, yellow and red iron oxides. The sections may be squares, rectangles, or hexagons. Specification 745,149, [Group IV (a)], is referred to.
Patent GB-861706-A (GB)
Title: Improvements in or relating to float operated valves
IPC: F16K31/18
Filed: 1957-06-17
Abstract: 861,706. Valves. JACKSON, A. E., and GRANT, J. F. June 10, 1958 [June 17, 1957], No. 18991/57. Class 135. A float-operated valve 1 comprises means for applying a downward force to overcome the buoyancy of the lower buoyant part of a float 10 so that the control arm 3 is not moved until the upper buoyant part of the float becomes buoyant, whereupon the control arm moves and removes the downward force, the valve then being closed by the buoyancy of the lower float part. The loading means may comprise a tube 4, Fig. 1, integral with the float arm, in which a heavy tall 5 rolls from a first position (to the right of the tube), where it opposes the buoyant action of the float to a second position, shown, assisting the buoyant action. The ball's motion may be damped by a liquid 6 contained in the tube. In Figs. 3 and 4, not shown, the heavy ball may be contained in a tube pivoted to the side of the tank and attached to the float arm via a linkage. The force may be provided by lead shot or a heavy liquid. According to the Provisional Specification the downward force may also be provided by a permanent magnet which holds an armature attached to the control arm or by an auxiliary vessel attached to the control arm which is filled with liquid as the tank is filled and is emptied by movement of the control arm.
Patent GB-1171526-A (GB)
Title: Hydraulic Power Units for Tractors
Inventor: BROOKES ALBERT EDWARD
IPC: F04C11/00
Filed: 1967-04-25
Abstract: 1,171,526. Driving external machines. BRUFF MFG. CO. Ltd. 16 April, 1968 [25 April, 1967], No. 19002/67. Heading B7H. [Also in Division F4] An hydraulic power unit comprises a tank 4 adapted to be mounted on the three-point linkage of a tractor, a pump 6, for supplying fluid through a closed circuit to an hydraulic machine, mounted within, and drawing fluid from, the tank, a fan 13 mounted on the pump shaft externally of the tank and a heat exchanger 15 which is attached to the tank 4 and has a bank of tubes through which fluid is returned to the tank 4 and over which the fan causes cooling air to flow. The pump 6 and fan 13 are driven from a tractor p.t.o. 12 through a chain- and-sprocket drive 10, 11 which is cooled by the air flow. Fluid from the pump passes through an outlet pipe 9 to an external motor and is returned to the pipe 16.
Patent GB-417686-A (GB)
Title: Milling machines and like machine tools
IPC: B23C9/00
Filed: 1933-07-05
Abstract: 417,686. Milling-machines. HERBERT SIR A., LLOYD, A. H., and JINMAN, C. H., c/o Herbert, Ltd., A., Canal Road, Edgwick, Coventry. July 5, 1933, No. 19060. Addition to 393,380. [Class 83 (iii).] A milling or like machine tool according to the parent Specification is modified by the provision of means associated with the table and spindle drive whereby the spindle is automatically disconnected at a predetermined table position, preferably at or near the end of its forward travel so as to prevent the work being damaged by the tool during the return movement. As applied to the machine shown in Figs. 7-10 of the parent Specification, the spindle drive includes a clutch 12 operated through a lever 15 connected with lost motion at 16 to a rod 17 hinged to a crank 18 on the hand control lever 14. To engage the clutch the hand lever is raised, whereupon the end 19 of the lever 15 is held against the force of a disengaging spring 21 by a latch lever 20 which is biassed into latching position by a spring 24. When the hand lever is released the lost motion connection allows it to return towards the clutch disengaging position wherein a cam portion 22 engages the top of the latch part 23. A slight pressure on the hand lever moves the rod 23 downwards and disengages the latch, whereupon the spindle clutch is disengaged and a brake (not shown) applied to the spindle. For automatic release of the latch mechanism a Bowden cable 25 is actuated from a striker 28 on the table through a bell crank 27, this action being preferably timed to occur just before the switching means disconnects the feed drive to allow the motor to return the table so that the work cannot be damaged. In a modification, Fig. 4, the rod 17 is moved to the left by the hand control lever to engage the clutch, which is held in against the pressure of a disengaging spring 21 by a pivoted latch 20, the latch being disengaged against a spring 24 either by the hand lever acting through the boss 29 on the rod 23 or by Bowden cable 25 operated automatically from the striker 28 on the table.
Patent GB-327915-A (GB)
Title: Process for manufacturing strings and other flexible ties from material of animal origin
IPC: A61L17/08
Filed: 1929-06-22
Abstract: 327,915. Soc. Anon. des Laboratoires Robert et Carriere. May 16, 1929, [Convention date]. Yarns &c.-Strings for musical instruments, tennis rackets, surgical purposes, &c. are made from animal fibres such as muscular fibres. The fresh animal sinews are separated from the flesh and fat, sterilized, dried at a low temperature, and laminated so as to effect defibrination, the fibres so obtained being twisted together to form the string.
Patent GB-571952-A (GB)
Title: Improved high pressure lubricating apparatus
IPC: F16N13/02
Filed: 1943-11-17
Abstract: 571,952. Lubricators. TECALEMIT, Ltd., and LE CLAIR, C. C. S. Nov. 17, 1943, No. 19217. [Class 12 (iii)] In a manually-operated high-pressure piston 31 fed from a low-pressure cylinder 1, wherein pressure is constantly supplied to the lubricant, as by a spring-pressed piston 8, the discharge from the high-pressure piston has a spring- urged non-return valve and this piston is arranged to be actuated by one hand or by the body of the operator. The low-pressure piston 8 is engaged by a spring 15 and has a rod 11 with a groove 11a for coloured paint to indicate the amount of grease in cylinder 1. Cylinder 1 is filled by passages 40, 39 and nipple 38 and has a passage 37 leading to the high-pressure cylinder 24 which has an outlet passage 22 to the spring-pressed ball valve 20 and discharge conduit 5. The piston 31 has a spring 32 and is covered by an operating plunger 30, the piston sliding through packing 26 described in Specification 566,329, [Group XXVI]. Plunger 30 is operated directly or by a pivoted lever. The lubricator body has a threaded shank 2 to be screwed into a support.
Patent GB-257083-A (GB)
Title: Improvements in apparatus for electric formation of oxides of nitrogen
IPC: C01B21/26
Filed: 1925-07-30
Abstract: 257,083. Island, J. S. July 30, 1925. Frequency, changing.-In an apparatus for producing oxides of nitrogen wherein the electrodes A, B are connected with commercial frequency supply leads 1, 2, a subsidiary circuit 3, 4 including a transformer P, S is arranged across the leads 1, 2, and a high speed interrupter 9 is arranged as a shunt to the secondary S to produce high frequency current in the main circuit. The main supply may be 1,000 volts at 60 cycles and is stepped up to 6,000 volts by the transformer. The interrupter 9 makes and breaks the circuit 80,000 'times per second.
Patent GB-599306-A (GB)
Title: Improvements in or relating to coils for high frequency inductive heating purposes
IPC: H05B6/36
Filed: 1943-11-19
Abstract: 599,306. Electric induction heating. STANDARD TELEPHONES & CABLES, Ltd., and MADDOCK, A. J. Nov. 19, 1943, No. 19383. [Class 39 (iii)] In the heating of metals by high-frequency electric induction, the field of the inductor coil is confined to those parts which it is desired to heat by attaching a screening member to the inductor coil instead of to the object heated. In Fig. 1 a rectangular coil A has screens S1, S2 attached for a short length only, to the coil at the centre as shown, or at either end, whereby no appreciable current is carried by the screws. A circular coil may have semicircular screens surrounding it, attached at one of their ends only. A coil A of two turns for heating the edges of a slot K may have screens S1, S2 of saddle shape attached at X, Y so that the coil can be readily lowered over the work. Similar methods may be adopted for shielding inside the coil, e.g. by a circular disc screen attached at one point. Specifications 574,751 and 580,019 are referred to.
Patent GB-298703-A (GB)
Title: Improvements in or relating to electrical resistances
IPC: H01C1/06
Filed: 1927-07-21
Abstract: 298,703. Igranic Electric Co., Ltd., Willans, P. W., and Currah, L. E. July 21, 1927. Receiving-sets, construction of.-A resistance for use in a wireless circuit is provided with a metallic shield which surrounds and is electrically connected with the resistance. In the form shown the resistance 1 is wound on a wooden spool 2, one end 2a of which is made larger than the other 2b, and the cylindrical shield 3 is constructed with a closed end 3<a> through which a securing-screw 4a passes, the screw serving as one terminal of the resistance. A similar screw 4<b> forms the other terminal. In a modification, the end of the shield is made as a separate cap, it being held in position by the screw 4a. In making the connection, the shielded end should be connected to the anode. Specification 283,993 is referred to.
Patent GB-936929-A (GB)
Title: Improvements in means for preventing fracture of liquid containers and flow ducts
Inventor: ALLEN ERIC HAROLD WILLIAM
IPC: G01F15/10
Filed: 1961-05-30
Abstract: 936,929. Preventing bursting. GEORGE KENT Ltd. May 30, 1961, No. 19457/61. Drawings to Specification. Class 99(2). [Also in Group XXIX] The liquid containing parts of a flow meter (see Group XXIX) are protected against damage due to expansion of the liquid on freezing by filling the spaces in the said parts with an element compressible by the liquid when it freezes formed of an expanded rigid plastic such as polystyrene or polyvinylchloride. The plastic is expanded to a density of 12 1bs. per cu. ft. in a manner which ensures that the cells in the structure do not intercommunicate.
Patent GB-409166-A (GB)
Title: Improvements in the manufacture of cement
IPC: C04B7/02
Filed: 1933-07-10
Abstract: Dark cements are prepared from raw materials which are deficient in magnesia by adding to the raw material when it is in the state of powder or slurry magnesia compounds such as dolomite in such amounts as to obtain a clinker which contains from 0.85 per cent to 2 per cent magnesia.  If desired additional colouring materials such as metallic salts and oxides may be added to increase the colouring effect.
Patent GB-346229-A (GB)
IPC: G03B21/42
Filed: 1930-06-27
Abstract: 346,229. Kinematograph apparatus. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats - Ges.; 2, Friedrich Karl Ufer, Berlin.) June 27, 1930, No. 19615. Convention date, June 27, 1929. [Class 97 (i).] Step-by-step driving mechanism for kinematograph apparatus &c. is associated with a flywheel constructed as, or provided with, a pulsation damper. The flywheel may comprise a part 1 which is rigidly connected to the pin-wheel 6 of a Geneva mechanism, and houses pulsationdamper rings 2, 3, movable relatively to it, and pressed against it by springs 4. The Geneva mechanism and the flywheel may be enclosed in an oil casing, and the flywheel may be constructed so as to overhang the Geneva mechanism.