baber/WOPTO huggingface dataset:
Patent GB-1281667-A (GB)
Title: Method and apparatus for separating finer particles from coarse particles suspended in a liquid
Inventor: JANSON BENGT GOTTHARD
IPC: B01D35/00
Filed: 1971-04-19
Abstract: 1281667 Wet screening of materials B G JANSON 19 April 1971 [22 April 1970] 26932/ 71 Heading B2H In a method of separating fine particles from coarse particles in a liquid, e.g. cellulose or paper pulp or food particles, the liquid containing the particles is sprayed against a screen while a pressure difference is maintained between the pressures on the inlet and outlet sides of the screen and a liquid column is maintained in contact with the outlet side of the screen, so that a portion of the liquid together with fine particles and a gas, e.g. air, passes through the screen to its outlet side while the coarse particles are arrested by the screen and removed on the inlet side thereof. The screen may have a horizontal, vertical or inclined attitude and the water may be sprayed from above, from beneath or from one side laterally of the screen. The Figs. I and 2, a collecting chamber 10 of a separating apparatus contains one or more chambers 15 extending transversely or, as shown, longitudinally thereof. The or each chamber 15 is provided with a vertically adjustable liquid supply pipe 19 having one or more spray nozzles 21. The upper wall 18 of the chamber 15 is provided with a screen 18 which may be flat, conical or dome-shaped. Liquid in the collecting chamber 10 is maintained at a selected level 25 by means of a vertically adjustable spillway 26. The pressure of air in the space 27 above the liquid level 25 is maintained by a pump or fan 29 at a higher value than the pressure in the space 28 in chamber 15 above the level 23 of the portion of the liquid which collects in the chamber and whose level is controlled by a vertically adjustable spillway 24. The liquid in chamber 15 is drained through a pipe 30 and recirculated to the apparatus. Air may be mixed with the liquid supplied through the pipe 19. The fine particles passing through the screen 22 floats to the top of the liquid in chamber 10 and is discharged through the spillway 26, purified liquid being discharged through a pipe 29'. In Fig. 3, a separator comprises a housing 30 in which a pipe 32 having a nozzle 33 is vertically adjustable. The jet of liquid supplied to the pipe 32 impinges against a screen 34 above which the liquid column is formed. A number of the separators may be arranged in a row as in Fig. 4. Liquid containing coarse and fine particles and air is fed through a common line 318 Liquid and coarse particles are discharged through an outlet pipe 37 on the floor of each housing to a common outlet line 39. Liquid, fine particles and air pass through the screens 34 and are conducted through a common line 40 to a flotation chamber 41. In the line 40 are located a pump 42 and a pressure regulator (not shown) which regulates the pressure in the line. Other arrangements of .the separators are described.
Patent GB-429809-A (GB)
Title: Improvements in or relating to name-plates for pianoforte frames
IPC: G10C3/04
Filed: 1934-09-19
Abstract: 429,809. Securing name - plates on pianos. KEMBLE, M., and JACOBS, M. V., 97, Carysfort Road, Stoke Newington, London. Sept. 19, 1934, No. 26958. [Class 3 (ii)] A name-plate 12 is secured to a piano by pins 14 which pass through holes 11 in the metal frame and are secured in holes 15 in the wooden casing of the piano. The pins, as shown, are secured in bosses 13, cast integral with the plate 12, by a press-fit. Alternatively, they may be secured in the bosses by screw-threaded engagement therewith.
Patent GB-1237434-A (GB)
Title: Improvements in and relating to methods of applying fine patterns to a substrate
Inventor: NEILSON ROBERT GEORGE TOMISON
IPC: C23F1/02
Filed: 1968-06-06
Abstract: 1,237,434. Coating with metals to form e. g. cross-wires for optical instruments. RANK ORGANISATION Ltd. May 30, 1969 [June 6, 1968], No. 26980/68. Heading C7F. [Also in Division G2] A pattern e.g. graticules or grids for optical instruments or electric circuits is made by coating a substrate e.g. glass with a material, e.g. Cu, Al or Ag, softer than the substrate, forming grooves in the soft material with e.g. a diamond, and then depositing the pattern forming material, e.g. Ni-Cr, W or Cr by chemical or vapour deposition. Residual soft material in the grooves is removed e.g. by oxidizing the copper and then dissolving the copper oxide in e.g. a persulphate solution. If the surface of the substrate is not sufficiently hard, it may be first coated with silica, alumina, titanium dioxide or cerium oxides. The copper may be removed with ferric chloride.
Patent GB-406076-A (GB)
Title: Improvements in drop-end and like fittings for furniture
IPC: A47C1/03
Filed: 1932-09-29
Abstract: 406,076. Adjustable chairs. RUSSELL, R., 203, Hawthorn Road, Erdington, Birming- ham. Sept. 29, 1932, No. 26985. [Class 52 (ii).] In a fitting for supporting an angularly adjustable part of a chair or settee, corresponding parts 4, 4 and 5, 5 of the two hinges are connected by a rod or rods 10, 12, and the adjusting means, such as struts 13 and operating handle 19, are arranged as a single unit with the hinges. In the arrangement shown, the rod 10 constitutes a pivot for the U-shaped strut 13, both arms of which are notched to engage the rod 12. A spring 17 is provided to retain the parts in adjusted position. Specification 339,712, [Class 52 (ii)], is referred to.
Patent GB-485608-A (GB)
Title: Improvements in travelling carriages for gun platforms and the like
IPC: F41A23/28
Filed: 1937-10-06
Abstract: 485,608. Vehicle suspensions. KRUPP AKT.-GES., F. Oct. 6, 1937, No. 27060. Convention date, Nov. 2, 1936. [Class 108 (ii)] [Also in Group XXI] Relates to a two-wheeled carriage for a gun or like load-carrying platform 8 of the kind comprising a carriage frame connected to the platform at one end by a hinge 9 and at the other end by a winding gear 31, 32 which serves to lift and lower the platform. According to the invention, the carriage frame consists of crossbeams 4 of inverted - U-shape interconnected by longitudinal members 1, the crossbeams embracing and guiding the platform and having hinged thereto pairs of parallel motion links 10, 12 and 11, 13 for suspending the frame from the running wheels 18. The legs of the crossbeams are of channel-shaped section to receive the ends of the links on longitudinal pins 14, and the central upper part of each crossbeam is of closed-box section. The steering-pole 26 is pivoted in the front crossbeam and is connected by rods 20 to the wheels. The front part 28 of the pole can swing on a pivot 29 when the platform is lowered. The winding gear comprises a rack 30 moved by a crank 31 in a guide-link 32 hinged at 33 to the platform which is locked to the frame in raised position by bolts 34.
Patent GB-1510928-A (GB)
Title: Railway vehicle suspension
IPC: B61F5/38
Filed: 1976-06-29
Abstract: 1510928 Springs SOUTH AFRICAN INVENTIONS DEVELOPMENT CORP 29 June 1976 [14 July 1975] 27082/76 Addition to 1449249 Heading F2S [Also in Division B7] In a railway truck, load bearing members 16, 24 are suspended with respect to self-steering wheelsets by elastic elements 22, 26, at least some of which have a lateral stiffness transverse to the longitudinal axis of the truck which is lower than the stiffness parallel to the longitudinal axis, and the wheelsets are interconnected by diagonal members to transmit yawing and lateral movements of either wheelset in the opposite sense to the other. The elastic element of Fig. 5, as viewed along the longitudinal axis of the truck, includes a resilient block-shaped member 23, comprising alternate layers of rubber and metal, between part-cylindrical members 60. In Fig. 6, part-cylindrical members 60, which are bonded to the member 23, cooperate with surfaces 66 of members 64 secured to the side frame 16 and flange 21 and having a larger radius at curvature. Members 64 and 66 may be interchanged. Coil springs and rubber blocks may be used as resilient members.
Patent GB-745272-A (GB)
Title: Hydraulic apparatus for regulating the pressure of a gas
Inventor: DE MILLEVILLE MARIE J M
IPC: F16K17/00
Filed: 1953-10-02
Abstract: 745,272. Valves. MILLEVILLE, M. J. M. DE. Oct. 2,1953, No. 27132/53. Class 135. A hydraulic apparatus for regulating the pressure of a gas with respect to a reference pressure, e.g. a relief or pressure reducing valve, comprises a first enclosure 1 for the reference pressure entering at 12 and a second enclosure 2 having an inlet and exhaust for the gas pressure to be regulated, both enclosures being connected through a passage in 'the base B but sealed from one another by a liquid 3, a float 4 moved by the liquid level in the first enclosure and associated with a device 6, 10 controlling a valve device 19 admitting the reference pressure to the second enclosure via the passages 8, 20, but closing when the second enclosure pressure equals the reference pressure, and a float 5 in the second enclosure controlling a valve 7, 11 connecting the conduit 15 with the conduit 9, 26. If the reference pressure is applied first, the liquid level and float in enclosure 1 move down and the reference pressure passes via valve 6, 10 and check-valve 19 to enclosure 2 and balances both columns of liquid. When the apparatus is used as a pressure relief valve, as shown, if the gas pressure in a system connected at 15 increases above a certain value, relative to the reference pressure, the liquid level and float in enclosure 2 move down to open valve 7, 11 and relieve the pressure through an adjustable throttle 24 in the conduit 26. When used as a pressure regulator, ports in the sleeve valve 7 control the ports 11 in the tube 9 which is connected to a high pressure source at 26, so that as the pressure in the outlet 15 and enclosure 2 decreases below a certain value relative to the reference pressure, the liquid level and float rise to open ports 11 and admit further gas to the enclosure. The relative surface areas of the liquid levels in each enclosure are varied by rods 29. Ball valves 13, 16, resting on apertured grids 35, 36, in the passages 12, 15 respectively, allow the normal flow of gas in either direction, but seat upwardly at 33 should the upward flow of gas become excessive. Lubricating oil for valves 6, 7 may pass from the bottom of the passages 8, 9 respectively through capillary ducts 28 and the connecting passage in the base enters wells at the bottom of each enclosure tangentially to produce swirling in the liquid for rotating the floats and valves.
Patent GB-142037-A (GB)
Title: Improved snap fastener for jewel or similar case, box, or the like
IPC: E05C1/10
Filed: 1919-11-05
Abstract: 142,037. Cheney, C. W. Nov. 5, 1919. Catches, spring.-Relates to a snap fastening for jewel-cases and the like, of the type in which an L-shaped catch member a<3> is moved by a push-pin a<5> against a spring, and slides upon a fixed guide-plate c, and consists in piercing the plate, as at c<2>, to receive the spring d, and in pressing out therefrom bars c<3>, c<4>, to serve as guides for the catch-piece.
Patent GB-1262948-A (GB)
Title: Copolymeric polyisocyanates
Inventor: GODFREY ROBERT A
IPC: C08G18/04
Filed: 1969-05-30
Abstract: 1,262,948. Coatings. MOBAY CHEMICAL CO. 30 May, 1969 [31 May, 1968], No. 27413/69. Heading B2E. [Also in Division C3] Block copolymers of ethylenically unsaturated monomers and certain polyisocyanates are reacted with compounds containing active hydrogen atoms and the resultant polyurethanes may be used as a coating. In Example 6 a block copolymer of styrene and 2, 4-tolylene diisocyanate is reacted with a polyesterdiol of adipic acid, diethyleneglycol and trimethylolpropane and the polyurethane coated on iron phosphate foretreated cold rolled steel and baked.
Patent GB-339610-A (GB)
Title: Improvements in or relating to finishing machines for boots or shoes
IPC: A43D95/20
Filed: 1929-09-10
Abstract: 339,610. British United Shoe Machinery Co., Ltd., and Hallam, A. W. Sept. 10, 1929. Edge-setting &c. - Relates to a compact and simple oscillating edge-setting or other sole margin finishing mechanism adapted as a unit to be readily substituted, on a finishing machine. for, and to be driven in the same way as, a Naumkeag or like spindle. A bracket 12 with a base having a flat face adapted to be clamped to a horizontal face on the top of the frame of a finishing machine supports a spindle 10 provided with fast and loose pulleys 15, 16 at its upper end so that it can be driven by the usual Naumkeag pad driving means of the machine. At its lower end, the spindle has a crank or an eccentric portion 18 on which the inner race 20 of a ball bearing of self-aligning type is fitted. The outer race 22 of the bearing is housed in a rectangular block 24 guided in a carrier 26 pivoted at 28, the block 24 being free to slide in the carrier in a direction parallel with the pivot. The rotary motion of the spindle 10 is thus caused to oscillate the carrier 26, which at its lower end carries a plurality of tools 36, 37. So that a selected tool may be turned to the operative position, the tool holder is carried on a stem 38 and normally pressed upwardly by a spring 40 so that lugs 44 engage slots 46. On pulling the holder down, it may be rotated by hand to change the uperative. tool, release allowing the lugs 44 to engage appropriate slots to maintain the selected tool in position. Nozzles 49 allow of heating of the tools by gas. In the example shown, the throw of the member 18 is about 1/16 inch producing an oscillation at the working face of the tool of 5/32 inch, the speed being about 3,000 per minute. The interior of the upper end of the carrier is filled with oil, and a guard 48 is provided. Stitch wheeling or heel seat wheeling tools may be secured in the carrier. Specification 5355/05 is referred to.
Patent GB-427777-A (GB)
Title: Improvements in the production of materials containing bitumen and tar or mixtures of different tars for roads and underground construction
IPC: C10C3/04
Filed: 1934-09-25
Abstract: Materials containing bitumen and tar or mixtures of different tars are treated, for use in road construction and for waterproofing underground and foundation structures, by treating the materials at temperatures up to 130 DEG  C. with simultaneous passage of oxygen or air and in the presence of up to 3 per cent sulphuric acid by weight, with or without the addition of oxidizing agents such as persulphate, or perborate.  The residues of the common distillation of different tars or the distillation of one or more tars with petroleum may be used as starting materials with or without small additions of fatty oils, resin soap or substances used as drying agents in the paint industry such as peroxides.  In examples, mixtures of petroleum asphalt, shale tar, coal tar-pitch, and brown coal tar are specified.
Patent GB-1455562-A (GB)
Title: Tray for packaging articles
IPC: B65D5/36
Filed: 1973-06-09
Abstract: 1455562 Shrink wrapped trays BOXFOLDIA Ltd 16 Nov 1973 [25 Nov 1972 9 June 1973] 54564/72 and 27566/73 Headings B8P and B8C A cardboard tray for subsequent shrink wrapping and having rounded corners to accommodate cylindrical articles can be collapsed flat without disjointing by reason of its corner connections, the side walls being foldable about lines coincident with the edges of the base of the tray. Adjacent end and side walls 14, 15 are connected by a triangular portion on the side 14 folded back about a line 17 and secured, preferably by adhesive, to an extension 18 on adjacent end 15 when the ends and sides are folded over to lie on the base 10. The boxes are erected merely by raising the side and end walls. In a modification, the extension 18 is integral with the triangular portion 16 and is secured to the end of wall.
Patent GB-1112304-A (GB)
Title: Improvements in or relating to radio frequency devices
Inventor: WARREN ANTHONY ROBERT
IPC: H03B5/18
Filed: 1965-06-29
Abstract: 1,112,304. Valve amplifying and oscillating circuits. TRAK MICROWAVE CORPORATION. 29 June, 1965, No. 27599/65. Headings H3F, H3R and H3W. [Also in Divisions H1 and H2] A radio frequency device having distributed constants for operation with an electron tube having anode 28, control grid 26 and cathode 24 terminals successively spaced along the tube axis, is constructed to provide an outer conductive cylinder 54, an inner conductive cylinder 88 disposed coaxially within the outer cylinder and an intermediate conductive cylinder 40 disposed coaxially between the outer and inner cylinders. The intermediate cylinder forms with outer cylinder an outer coaxial section 32 and with the inner cylinder an inner coaxial section 34 of a folded coaxial transmission line. An annular conductive wall 38 extends radially between, and conductively connects the outer and intermediate cylinders at one end thereof the two sections of the folded coaxial line being coupled in series at the end remote from the wall 38. At the opposite side of the wall 38 to the transmission line 32, 34 and coaxial therewith is a hollow conductive structure 30 forming an anode cavity resonant in a radial mode, from which energy is removed by output means comprising a coupling loop 130. The device is adapted to house the tube coaxially with the cylinders and cavity, the inner cylinder, intermediate cylinder and cavity structure having contacts 88a, 98, 108a respectively, insulated from one another and disposed for engaging cathode, control grid and anode terminals 24, 26, 28 respectively of the tube. The coupling between the two sections of the folded line comprises conductive flanges 58, 62 respectively connected to the inner and outer cylinders 88, 54, extending radially in parallel overlapping and closely spaced relation, and insulated from one another by means of a disc of insulating material 63 which may have a radial length comprising a quarter wavelength. Contact with the anode 28 of the tube is made by means of a conductive ring 108 which is bolted to, but separated by an insulating ring 113 from, the conductive plate 106 which completes the anode cavity 30. The cathode connection of the tube comprises a hollow cylinder 24 within which is a second hollow conductive cylinder 80 separated from it by a tube of insulating material 82: the filament is connected between the cylinders 24, 80, connection with the cylinder 80 being made by means of a member 90. The arrangement may be used as an oscillator, the transmission line and anode cavity being coupled together at their low potential ends by means of coupling loops 132, 134: the oscillator may be frequency modulated by means of a varactor diode (216, Fig. 4, not shown) attached to a probe which is inserted in the side wall of the outer cylinder. Alternatively the arrangement may be used as a radio frequency amplifier, in which case the coupling loops 132, 134 are omitted and an input probe is inserted in place of the varactor diode.
Patent GB-1309396-A (GB)
Title: Coal distillation process and apparatus
IPC: C10J3/57
Filed: 1970-06-08
Abstract: 1309396 Gasifying coal RHEINISCHE BRAUNKOHLENWERKE AG 8 June 1970 [25 Aug 1969] 27686/70 Heading C5E Coals having a high water content, e.g. lignite or brown coal, are partially gasified using the water in the coal as gasifying agent by heat produced by burning the solid residue of coal gasified by the process. The combustion gases may heat the gasification chamber externally, or may heat directly molten lead circulated between a heater and the chamber in which the coal directly contacts the molten lead, the coal in pulverulent form being blown into the bath by a gas, e.g. recycled product gas. The coal should be predried to a water content of about 40% b.w., and the degree of gasification should be about 60%, i.e. the gases should have a C.V. of about 60% of the C.V. of the coal, the residual water in the coal acting as the gasification agent. Predrying may be in a fluidized bed indirectly heated by the combustion gases, in a metal bath or in part of the externally heated gasification apparatus.
Patent GB-284039-A (GB)
Title: Improvements in or relating to electrolytic current rectifiers
IPC: H01G9/02
Filed: 1926-11-04
Abstract: 284,039. MacGregor, M. E. Nov. 4, Electrolytic cells, arrangements of. - The cathode of an electrolytic rectifier is of " stainless " steel, such as chromium steel, and the electrolyte consists of citric acid or ammonium citrate, to which ferrous, ferric, or aluminium salts may be added, or of a mixture of ammonium-aluminium, phospho-citrate and ferrochromium oxalate prepared by a process described in the Specification. In the arrangement shown the electrodes A, B are carried on a bar C, the aluminium anodes A being protected, except for their tips, with rubber sheaths a. The electrode may be connected as shown in Fig. 2 for rectifying both halves of an alternating current: x, y being the alternating current terminals and band a2 the positive and negative terminals of the direct-current circuit.
Patent GB-695384-A (GB)
Title: Improvements in and relating to the continuous processing of filamentary tow
Inventor: MERRIMAN HORACE BARTLETT
IPC: D02J1/18
Filed: 1950-11-14
Abstract: 695,384. Drying yarn. COURTAULDS, Ltd. Nov. 13, 1951 [Nov. 14, 1950], No. 27758/50. Class 34 (i) [Also in Group IX] In drying continuous filaments which have been treated with liquids, a tow 1 is spread into a flat band 10 of uniform thickness by passing it over and in close proximity to a flat surface 6 and directing a series of oblique air jets thereon the jets collectively having components of velocity in and transversely to the direction of movement of the tow: air passing through the tow spreads the filaments and is deflected back through the tow by the surface 6: the band is then mangled by passage through squeeze rollers to remove surplus liquid and dried on a series of heated rollers. As shown, the tow passes through a tube 2 connected by a series of pipes 7a, 7b, 7c to a distribution chamber 9 to which compressed air is supplied via a pipe 8. The surface 6 of the tube 2 may be provided with spaced transverse ribs to assist in deflecting the air.
Patent GB-758013-A (GB)
Title: Improvements in or relating to the surface treatment of titanium or titanium base alloys
Inventor: HANDS SIDNEY
IPC: H03M1/00
Filed: 1954-09-22
Abstract: Titanium or titanium-base alloy articles are treated with concentrated hydrochloric acid at elevated temperatures prior to deposition of a coating metal thereon.  Preferably the treatment is effected at 90 DEG -100 DEG C.  If the article is heavily scaled, it may be pre-treated with a standard pickling solution, e.g. HF/HNO3 solution, or with a standard caustic melt descaling bath consisting of molten NaOH with or without other constituents such as sodium hydride, before treatment with the HCl.  Electroplating with silver is referred to.