baber/WOPTO huggingface dataset:
Patent GB-682462-A (GB)
Title: Improvements in and relating to filters
IPC: B01D33/00
Filed: 1950-03-02
Abstract: 682,462. Liquid filters. WEINHOLD, K. March 2, 1950 [Oct. 1, 1948], No. 5329/50. Class 46 A liquid filter is provided on the soliddeposition side with a band formed of independent cells open at each end and when the band is used for retaining liquid for washing the deposit free from filtrate the band is in contact with the layer of deposit so as to form liquid-tight joints therewith., When the band is to be used for removing the filter deposit, it is in contact with the filtering medium so that the solid matter is deposited in the cells and when the band is removed from the filtering medium the deposit is removed .with it and may be separated from the cellular band by pneumatic, hydraulic or mechanical means. The cellular band may be endless for use with drum or endless filtering media or it may be in plane sheet or other form to conform to the filtering surface of the filtering medium with which it is used. As shown in Fig. 1 the washing band 3 is in contact with the deposit on the rotating drum filtering surface 1 over a part of the surface under such. pressure that the band forms a liquid-tight joint with the layer of deposit and moves at the speed of the drum. Washing liquid is supplied from the conduit 5 The band may be made from sheet metal. e.g., zig-zag strips secured to transverse walls in such a way that the cellular band is sufficiently flexible to adapt itself to the circumference of the drum and be guided around guiding rollers 4. As shown in Fig. 6 adjacent rows of transversely disposed cells formed by welding U-shaped strips 17 to the transverse plates 16 are hingedly connected together as by a hinge 18 connected to adjacent transverse plates 16 which are normally parallel to each other. By the hinge joints the band can conform to a curved surface without distortion of the cells. The cells may be perpendicular to the plane of the band or they may be inclined at an angle thereto so as effectively to increase the washing reach of the drum. Liquid pervious material 15 such as felt may be inserted at the bottom of each cell. The cells are provided with overflow openings 19 near their outer ends. Alternately, the band may consist of flexible, permeable or absorptive material such as rubber, as a kind of rubber sponge with the cells, pores or channels running only from face to face of the band. In the case of a flexible band. e.g. of rubber, the walls of the cells perpendicular to the plane of the band may be reinforced with e.g. sheets of linen.
Patent GB-185133-A (GB)
Title: Improvements in and relating to wireless and other signalling systems, particularly for the limiting of signals
IPC: H04B1/12
Filed: 1921-02-17
Abstract: 185,133. Taggart, J. Scott-, and Radio Communication Co., Ltd. Feb. 17, 1921. Atmospherics and undesired signals, limiting; thermionic valves, arrangements of.-In order to limit the effect of overstrong signals, atmospherics, or other interference, the rectified signal impulses are applied at terminals I, N across a high resistance R<1> shunted by a two-electrode valve V having a resistance R<2> in its plate circuit. A negative potential from a battery B renders the valve non-effective for signal impulses of normal strength. An excessively strong impulse, however, renders the valve conductive, and thereby creates a current in the resistance R<2> which opposes the current in the resistance R<1> and so lessens the effective potential difference existing between the adjustable points Y, Z of the output circuit or indicating-device. By suitable adjustment, the net effect across Y, Z can either be reduced to any desired strength, or balanced out. Fig. 3 represents an equivalent arrangement consisting of two opposed three-electrode valves, an initial negative potential being imposed upon the grid G<2> of the valve V<2>. As shown in Fig. 4, the net output at Y, Z from the double-grid valve V<1> is limited by the negative potential applied to the grid G<2> from its connection to the resistance R, which carries a current whenever a signal of excessive strength overcomes the negative potential of the grid G<3> derived from the battery B<1>. In a modification of this arrangement, the valve V<1>, Fig. 4, is replaced by an ordinary three-electrode valve, the grid circuit of which includes a part of an ohmic resistance in the plate circuit of the valve V<2>, thereby giving rise to similar reverse retroactive effects. The resistances R<1>, R<2> may be replaced by inductances.
Patent GB-177355-A (GB)
Title: Improvements in vent plugs for electric accumulators and the like
IPC: H01M2/12
Filed: 1921-02-17
Abstract: 177,355. Davis, A. L. Feb. 17, 1921. Gas exits.-A gas exit consists of an inverted truncated cone 3 depending within a second cone 4 enclosed in a cylindrical casing 5. The cones and casing are perforated at their lowest points 15 and provided with baffles 16, the casing also having a small opening 14 at its upper end. The parts may be fixed permanently to one another or the cones may be fixed to a member 6 which screws into a collar 8 carrying the casing 5.
Patent GB-308433-A (GB)
Title: Improvements in carburetting-apparatus for internal-combustion engines
IPC: F02M17/28
Filed: 1928-02-21
Abstract: 308,433. Smith, T. Feb. 21, 1928. Surface carburettors.-A surface carburettor comprises a container A filled with wood wool or other absorbent and provided with a perforated air-inlet conduit D fitted with a check valve E and a mixture-outlet conduit G controlled by a check valve H and a manually-operated valve J. Secondary air may be admitted to the conduit G through a pipe K controlled by a manually-operated valve L.
Patent GB-308715-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28F9/22
Filed: 1929-02-19
Abstract: 308,715. Griscom-Russell Co., (Assignees of Ris, K. B.). March 27, 1928, [Convention date]. Straight tubes between headers; helical baffles.-In a heat - exchanger particularly with oil as one of the media, baffles are arranged to constrain the medium alternately in a multi-helical circumferential direction and in an axial direction. In the example plane baffles 15 through which the tubes 5 pass, having a central opening alternate with baffles 14 having sectors bent up like propeller vanes. Specificaiion 176,753 and 248,712 are referred to.
Patent GB-304937-A (GB)
Title: Means for carrying-off gases from rotary tubular furnaces for gas treatment of ores
IPC: F27B7/00
Filed: 1928-02-22
Abstract: 304,937. Debuch, C. P. Feb. 22, 1928. Rotary furnaces.-Waste gases are exhausted from a rotary furnace through a bent non- rotating flue section b having at one end an enlarged portion a, which engages within a sleevelike extension c secured to the furnace, and at the other a water seal joint g with a fixed flue. The flue b is counterbalanced by a weight b<1>, and is free to follow all movements of the furnace other than that of rotation. In the construction shown, the enlarged portion a is formed by a water chamber d, and is protected by a. lining g<1> and an inner sleeve h rotating with the furnace. The part of the flue b contacting with the furnace may be in the form of a labyrinth packing. Specification 303,072 is referred to.
Patent GB-394289-A (GB)
Title: Improvements in and relating to the manufacture of forcetransmitting constructional parts for aircraft more particularly for aeroplanes
IPC: B64C1/00
Filed: 1933-02-23
Abstract: 394,289. Soldering. SHEVLIN, J. T., 15, South Street, London.-(Sambraus, A.; 57, Bismarck-Strasse, Charlottenburg, Berlin.) Feb. 23, 1933, No. 5613. [Classes 83 (ii) and 83 (iv).] Aircraft parts comprising thin tough metal elements such as highly alloyed steel or bronze are secured together by soft soldered joints, and where a number of parts have to be secured together successively the later operations are effected with solders of successively lower melting-points. Fig. 3 shows a joint between the front spar, ribs and skin of an aeroplane wing, the spar comprising a thin metal web 9 and flanges 7 connected together by angle strips 8 soldered to both elements. Holes 15 may be formed in the strips 8 for the introduction of soldering material. The web is strengthened at intervals by profiled pieces 10 soldered on. The skin 11, 11<1> is lap jointed and connected to a plate 14 and is strengthened by ribs 12, 12<1>. Gusset plates 13, 13<1> connect the spar and ribs and the edges of the gusset plates have thin flanges 17 soldered on. To secure flexibility at joints in thin sheets the edges are toothed and tapered in thickness. When a sheet is to remain in tension it is heated by rollers prior to having its edges soldered.. Very thin sheets may be temporarily supported by cementing them to cardboard.
Patent GB-1424036-A (GB)
Title: Incremental measuring system with means to detect faulty operation
IPC: G01G23/375
Filed: 1973-02-05
Abstract: 1424036 Indicating erroneous operation of displacement encoder BIZERBA-WERKE WILHELM KRAUT KG and DR JOHANNES HEIDENHAIN GmbH 5 Feb 1973 [16 Feb 1972] 5618/73 Heading G1A In weighing, a displacement encoder has four sensors A, B, C, D co-operating with a scale 1 to produce four phase spaced pulse trains as the scale moves, from which are derived two pairs of 90 degrees spaced pulse trains which pass via direction sensors 9, 13 to counters 10, 14, comparators 17, 26, 27, 28 and 29 all allowing, when their respective pairs of inputs are equal, pulses from a generator 30 to pass via a filter 34 to indicate faultless operation of the apparatus. Fig. 3 shows details of the logic 6.
Patent GB-918124-A (GB)
Title: Improvements in or relating to electric circuit protection and/or indication arrangements
IPC: H02H7/12
Filed: 1959-02-19
Abstract: 918,124. Protective arrangements. SIEMENS-SCHUCKERTWERKE A.G. Feb. 19, 1959 [Feb. 20, 1958], No. 5768/59. Class 38 (5). In an arrangement for protecting series - connected semi - conductor rectifiers, a bridge circuit is formed by these rectifiers 4, 5 in combination with resistors 7, 8, Fig. 1, or with other seriesconnected semi-conductor rectifiers, Fig. 2 (not shown), and a device is connected between normally equipotential points of the bridge for causing an indication or switching operation should a rectifier fail. Fig. 1 shows the primary winding of a transformer 12 connected in series with a variable resistor 11 between the equipotential points 9, 10, the secondary winding of the transformer energizing an indicating or tripping device when the bridge becomes unbalanced. Alternatively a relay in series with the resistor 11 may be connected between the points 9, 10. Figs. 3 to 10 (not shown) illustrate the application of the invention to various rectifier arrangements in which seriesconnected semi-conductor rectifiers are used.
Patent GB-1107962-A (GB)
Title: Improvements in or relating to the production of catalytic compositions
Inventor: GODIN GEORGE WILLIAM
IPC: C07C45/35
Filed: 1966-02-10
Abstract: In Examples 6 and 7, a gaseous mixture of 5% propylene, 6% ammonia, 55% air and 34% steam was reacted at 410 DEG  C. or 480 DEG  C. to yield acrolein and acrylonitrile in the presence of oxidation catalysts of tin and antimony oxides which have been made by dispersing precursrs therefor in a gas stream which is heated to cause the precursors to react to form the catalysts which then undergo heat treatment in the hot gas prior to collection.ALSO:Oxidation catalysts of tin and antimony oxides are made by dispersing precursors therefor in a gas stream which is heated to cause the precursors to react to form the catalysts which then undergo heat treatment in the hot gas prior to collection. Precursors is defined as a substance or substances (a) capable of reacting in or with the hot gas to yield the catalyst and (b) which can be fed into the gas stream as a gas or vapour or as an atomised liquid or solution.  Examples describe the use of Sn Cl4 and Sb Cl5 in air or ethanol which undergo thermal decomposition to yield SnO2 and Sb2O4.
Patent GB-879379-A (GB)
Title: Improvements in or relating to signalling devices for automotive vehicles
IPC: B60Q1/42
Filed: 1959-02-20
Abstract: 879,379. Road traffic signals on vehicles. SWF-SPEZIALFABRIK FUER AUTOBEHOER G. RAU G.m.b.H. Feb. 20, 1959 [March 21, 1958], No. 5841/59. Class 118. A steering column switch for self-cancelling, turn indicators is characterized in that the degree of rotation of the steering column necessary to return the switch to the non- operative position may be adjusted. As shown in Fig. 1, the return mechanism includes a stepped plate 7 which is arranged such that the edges of the steps may engage with the member 5 when the control column is turned to restore the switch to the non-operative condition. The switch 4 itself is pivotably mounted about an axis 8 so that by moving the control arm 6 up or down the member 5 may be moved to engage with the widely spaced edges 73, the intermediate ones 72 or the near ones 71. Cancelling of the switch will thus be produced by a large, a medium, or a small angle of rotation of the steering column respectively. In a second form, Fig. 2 (not shown), the switch 4 is not pivoted, but the plate 7 is arranged to slide up and down under the control of a further lever arm. In a third embodiment, Fig. 3, the restoring of the switch is effected by two pins 12, 13 which are angularly displaceable with respect to one another. The pins are mounted on a ring formed of two sections 21, 22 having slots 14 which slide on a pin 15 to vary the angle between the pins from au to st under the control of a push-rod 20.
Patent GB-724953-A (GB)
Title: Improvements relating to stuffing boxes for centrifugal pump and other rotary shafts
Inventor: NUTTALL LESLIE CHANDLER
IPC: F04D29/10
Filed: 1953-03-03
Abstract: 724,953. Stuffing-boxes. MATHER & PLATT, Ltd. Feb. 1, 1954 [March 3, 1953], No. 5843/53. Class 122 (5). The packing rings d of a stuffing-box c for a centrifugal pump or other rotary shaft a are shaped to pass in a zig-zag or wavy path around the shaft and the faces of the stuffing-box gland g, or bushes e, f, which bear against the packing rings are shaped to the contour of the rings. A water cooling and lubricating connection is provided at h.
Patent GB-254998-A (GB)
Title: Improvements in or relating to beverage coolers
IPC: F25D5/02
Filed: 1926-03-02
Abstract: 254,998. Lowe, F. S., and Morris, H. March 2, 1926. Mixers shaken in the hand.-A cocktail shaker or mixer comprises a vacuum-insulated outer vessel a, a<1> having a detachable base e to enable it to be charged with a cooling-mixture, and an inner vessel b for the beverages, preferably permanently united to the outer vessel, as by brazing a ring d on the vessel b to the walls a, a'. The vessel b has a lift-off cover g resting on a flange h. and is fitted with the usual strainer j. The base e may screw on to a ring f on the inner wall or directly on to the outer wall.
Patent GB-138197-A (GB)
Title: Improvements relating to appliances for waving or treating the hair
IPC: A45D4/02
Filed: 1919-03-10
Abstract: 138,197. Marcel, H. E. March 10, 1919. Hair-curling appliances.-Relates to apparatus for waving hair of the kind described in Specification 5508/15, and consists chiefly in the provision of fitments which allow the device being heated by alternative means, such as by electricity, by a massive sleeve, or by a mixture, of gas or vapour and air. An inner tube a, in which the hair to be treated is placed, carries at its lower end a cap c and telescopes into an outer tube 6, the two being fastened together by bayonet-joints c'. The upper end of the tube a projects into a spaced heat non-conducting ring d, and the cap c is mounted upon a heat and electric insulating ring f. A heating-coil adapted to be slipped over the tube a is connected at each end to plug or other terminal fittings adapted to be inserted into sockets in supports g<1>, these sockets being adapted to be connected to the main terminals. For heating by gas, a Bunsen fitting i is fitted to the handle j, and this is connected to a burner ring h. Fig. 2 shows a fitment for heating by spirit &c. A container q is connected to the burner h through a Bunsen fitting t'. The casing b is provided with an aperture which may be uncovered by means of a sliding plate n when gas or vapour is used, and over the aperture a hood o is placed.
Patent GB-649824-A (GB)
Title: Improvements in or relating to control apparatus for water supplies
IPC: A01K7/04
Filed: 1948-02-27
Abstract: 649,824. Hot-water boilers. COLLMAN, 'G. Feb. 27, 1948, No. 6004. [Class 64(i)] [Also in Groups I and XXI] Apparatus for controlling the supply of water to a number of separate points in a domestic hot-water system comprises an open tank A in which is situated, either above or below the normal water level, a float-operated control valve B. The supply C on entering the tank is connected to this valve and main and subsidiary delivery pipes D', D<SP>2</SP> are connected to the outlet of the valve, the two delivery pipes being in free communication with one another. The main delivery pipe D<SP>1</SP> leaves the tank at a point above the water level, whilst the subsidiary delivery pipe D<SP>2</SP> leads to a point in the tank below the water level and may be provided with a shut-off valve preferably situated below this normal water level. In use, the drawing off of water at one of the points remote from the tank causes the subsidiary pipe to siphon some of the contents from the tank so that the subsequent fall in the level of the water therein results in the opening of the valve B and water flowing through both delivery pipes in quantities proportional to their relative bores until the tank is again filled to its normal level when the valve closes. The Provisional Specification states also that the main delivery pipe may be completely immersed between the float valve and the point at which it leaves the tank.
Patent GB-696513-A (GB)
Title: Improvements in or relating to polymerization of olefins
IPC: C08F240/00
Filed: 1951-03-13
Abstract: Hydrocarbon mixtures containing isobutylene and other low-boiling normal and iso-olefins having 3, 4 or 5 carbon atoms per molecule are selectively polymerized by contacting the hydrocarbon mixture at a temperature not below -40 DEG  F. with an amount of Friedel-Crafts catalyst only slightly in excess of that required to initiate polymerization, whereby substantially complete polymerization of the isobutylene is effected with substantially no polymerization of the other olefins.  The catalyst may be aluminium chloride or bromide, titanium tetrachloride, uranium chloride or zirconium tetrachloride and may be employed in the solid state or in solution in a non-complex forming solvent such as methyl or ethyl chloride.  When the catalyst is used in solid form the amount may vary between 0.05 and 2.15 per cent, and when in solution between 0.1 and 1.0 per cent by weight of the feed.  The process may be carried out either batchwise or continuously.  When the hydrocarbon mixture contains isobutylene, butene-1 and butene-2 the residual hydrocarbon after the isobutylene has been polymerized may be contacted with a further quantity of catalyst up to a total of 5 per cent of the weight of the residual mixture whereby the butene-1 is substantially completely polymerized without substantial polymerization of the 2-butenes or other olefins.
Patent GB-677569-A (GB)
Title: Improvements in and relating to pumps having sliding vanes
IPC: F01C21/08
Filed: 1950-03-10
Abstract: 677,569. Rotary pumps. RUBURY, J. M., and HAMMOND ENGINEERING CO., Ltd. March 6, 1951 [March 10, 1950], No. 6085/50. Class 110(ii) A sliding-vane pump of the type described in Specification 534,339 has a rotor with end flanges c, carried by the inner races of ball or roller bearings g; axial play of the rotor is prevented by a collar p and a nut r which secure the inner race of each bearing. The outer races h. of the bearing, are also locked in position. The pump may be used as a compressor or an exhauster.
Patent GB-559264-A (GB)
Title: Improvements in coal cleaning by the sink-and-float method
IPC: B03B13/00
Filed: 1942-05-08
Abstract: 559,264. Cleaning coal. HANCOCK, R. T. May 8, 1942, Nos. 6246 and 9849. [Class 82 (ii)] In the separation of coal from dirt in a medium of intermediate specific gravity which is maintained of the required value without the use of mechanical agitation, a dispersion of sand in water is continuously fed to the top of a separating vessel in quantity more than sufficient to supply the water in the separating vessel with as much sand as it can abstract, the excess constantly overflowing the top of the vessel. Water may be continuously supplied, to a progressively narrowing downward extension of the separating vessel. In the plant shown, coal, along with a portion of the dispersion, is fed by a shoot 2 to a separating vessel 1, and the floating coal and excess dispersion overflow at a weir 3 with the aid of paddles 4. Dispersion is also supplied through launders 5 fed by a pipe system 6. Water is supplied through pipes 9 to a pyramidal extension 7 which is in communication with a water head 36 and with an adjustable weir 13 through which dispersion from the vessel 1 overflows and is pumped to a tank 16 from which it is recirculated to the pipes 6. The tank 16 communicates also with a medium-cleaning section 28 through outlets 34, 33, the latter being controlled by a valve 39 actuated by a float 37 in the vessel 36. The cleaned coal is washed and drained at 23, the fouled medium being pumped to a tank 26 from which the lightest portion overflows at 27 while the remainder is passed to the cleaning section 28 through a pipe 29. Dirt is removed from the bottom of the separating vessel by an elevator 17 and is screened and washed at 19, recovered medium being pumped to the tank 16.
Patent GB-125496-A (GB)
Title: Improvements relating to Retorts.
Inventor: REW REGINALD JOHN
IPC: C10B1/06
Filed: 1918-04-13
Abstract: 125,496. Rew, R. J. April 13, 1918. Superheating-chambers heated by combustion gases; Field-tube superheaters. - Superheated steam, for introduction into a retort e in which coal is carbonized, is generated by a superheater g attached to the retort as in Fig. 8. A separate superheater may be used as in Fig. 9, mounted in the brickwork setting near the retort so as to be heated to approximately the same temperature. Specification 124,247, [Class 55 (i), Coking &c.], is referred to.
Patent GB-102873-A (GB)
Title: A Starting Handle, for Petrol and Spirit Motors, which will Prevent all Accidents caused by the "Back-firing" of the Engine.
Inventor: GANNON WILFRED
IPC: F02N1/00
Filed: 1916-05-05
Abstract: 102,873. Gannon, W. May 5, 1916. Turning-gear.-The gear is disengaged on the reversal of the engine and comprises a notched disk A on the engine shaft with which engage pawls D pivoted to a disk B on the starting- handle spindle. The pawls D are held in the position shown by contact with the face of a ratchet-wheel, which is held up to the disk B by hooks H against the pressure of springs F. A pawl K on a fixed bracket J engages the wheel G. A backward movement of the engine shaft disengages the hooks H; the pawls D can then turn about their pivots clear of the disk A.
Patent GB-1111280-A (GB)
Title: Improvements in or relating to preloaded pivot joints
Inventor: OLIVER ROY EDWARD
IPC: F16C11/06
Filed: 1967-02-10
Abstract: 1,111,280. Vehicle steering linkages. TRW Inc. 10 Feb., 1967, No. 6625/67. Heading B7H. [Also in Division E2] A parallelogram automobile steering linkage comprises a cross link 11 pivotally connected at one end to a pitman arm 12, and at the other to an idler arm 13, by pin joints having consistent turning torque with a high resistance to angular deflection (see Division E2). The pitman arm is pivotably suspended at 14 from the steering gear of the vehicle, and the idler arm is pivoted at 15 to a fixed bracket B. Tie rods 16 are connected to the link 11 through ball and socket joints 17, and similarly connected at 20 to the steering arms 18 of the vehicle wheel 19.