baber/WOPTO huggingface dataset:
Patent GB-766331-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: ETHERIDGE GEOFFREY
IPC: F28D9/00
Filed: 1954-01-22
Abstract: 766,331. Making heat exchangers. FRASER & CO., Ltd., W. J. Jan. 20,1955 [Jan. 22,1954; June 9, 1954], Nos. 2060/54 and 16890/54. Class 83 (2). [Also in Group XIII] In a method of making a heat exchanger element a metal sheet 10, Fig. 1, with angled flanges 12, 13, is corrugated to form heatexchange passages 16a, 16b, Fig. 2, and the contacting flanges are welded together at the edges to enclose the ends. A heat exchanger may be formed by welding a pair of such elements in mirror formation on a plate 22, Fig. 4, which does not extend the full length. The elements are held by welds 22a and by a welded flange 23 surrounding one end and an angle member 15 welded between the adjacent edges at the other end. The assembly is inserted in a casing 20 and held in position at one end only by bolting the flange 23 under a flanged end casing 26b. In operation high pressure fluid P<SP>1</SP> entering the end casing 26a passes round the far end of the plate 22 through opposed passages in the corrugations which are sealed at the ends and leaves through the end casing 26b. Low-pressure fluid P<SP>2</SP> enters the casing 20 through a port 27a at the side and passes through the passages in the corrugations to the other end of the casing and through open-ends to the other side of the plate 22 and back to the exit port 27b on the opposite side. In a modification more than one pair of elements may be arranged in a container so that the flow is reversed three or more times. In other examples the elements are formed in such a manner that the flanges 12, 13, Fig. 1, are bent to the same side of the sheet so that the passages on one side are closed at both ends and the passages on the other side are open at both ends. These elements may be assembled in a casing 40, Fig. 10, having an inlet 42a and outlet 42b for one fluid P<SP>1</SP> at the ends of one side in communication with the passages having the enclosed ends. The other fluid p<SP>2</SP> passes through the open-ended passages from the ends 41a of the container. In another application elements 53, Fig. 11, form the outer wall of a transformer casing and are welded to a base 56 and a frame 54 for the cover 55. Plates 51 on the inner side restrict the flow for the hot oil P<SP>3</SP> to the ends of the elements while flow for the cooling air P<SP>4</SP> on the outer face is unrestricted through the open-ended passages. In another example similar elements are attached on the inside face of vessels containing fluids which are to be heated or cooled.
Patent GB-448808-A (GB)
Title: An improved process for the recovery of potassium and ammonium phosphates or mixed fertilisers containing the same
IPC: C05B7/00
Filed: 1935-01-22
Abstract: Potassium and ammonium phosphates are recovered from mixtures thereof by introducing gaseous ammonia into solutions or suspensions containing the two phosphates until at least so much phosphoric acid is precipitated as tri-ammonium phosphate that, while the phosphate content of the solution is substantial the molecular ratio K : PO4 in the solution is equal to or greater than unity.  The precipitated tri-ammonium phosphate is separated and the solution is evaporated at its boiling point for the recovery of potassium phosphate.  The initial solutions or suspensions may be obtained by treating solutions or suspensions containing potassium phosphate and an excess of phosphoric acid with gaseous ammonia.  The mother liquors produced after the separation of tri-ammonium phosphate may be treated with nitric acid or nitrous gases to produce a mixture of mono-phosphate and nitrate of potassium and ammonium which is dried.  Potassium salts such as potassium chloride or sulphate, sylvinite, or potassium-magnesium sulphate may be added to the product before or after drying.  The Specification as open to inspection under Sect. 91 comprises also the separation of sodium and ammonium phosphates in the manner described above, and refers to the employment of reduced pressure in the evaporating stage.  This subject-matter does not appear in the Specification as accepted.ALSO:Potassium and ammonium phosphates are recovered from mixtures thereof by introducing gaseous ammonia into solutions or suspensions containing the two phosphates until at least so much phosphoric acid is precipitated as tri-ammonium phosphate that, while the phosphate content of the solution is substantial the molecular ratio K : PO4 in the solution is equal to or greater than unity.  The precipitated tri-ammonium phosphate is separated and the solution is evaporated at its boiling point for the recovery of potassium phosphate.  The initial solutions or suspensions may be obtained by treating solutions or suspensions containing potassium phosphate and an excess of phosphoric acid with gaseous ammonia.  The mother liquors produced after the separation of tri-ammonium phosphate may be treated with nitric acid or nitrous gases to produce a mixture of mono-phosphate and nitrate of potassium and ammonium which is dried.  Potassium salts such as potassium chloride or sulphate, sylvinite, or potassium-magnesium sulphate may be added to the product before or after drying.  The Specification as open to inspection under Sect. 91 comprises also the separation of sodium and ammonium phosphates in the manner described above, and refers to the employment of reduced pressure in the evaporating stage.  This subject-matter does not appear in the Specification as accepted.
Patent GB-317097-A (GB)
Title: Improvements in or relating to the manufacture of artificial textile filaments or fibres
IPC: D01F2/30
Filed: 1928-02-06
Abstract: 317,097. Dreyfus, H. Feb. 6, 1928. Cellulose esters and ethers, processes for making filaments from.-For the manufacture, of " hollow " filaments and fibres by dry spinning solutions of organic derivatives of cellulose particularly cellulose acetate, there is added to the spinning solutions containing a volatile solvent liquid one or more high-boiling point solvents or plasticizers in such proportions that the latter are not completely evaporated at the close of the spinning opemtion. The presence of the highboiling point solvent or plasticizer prevents loss of strength in the filaments and permits the latter tu be drawn out to fine deniers. As high-boiling point solvents or plasticizers the following may be used : Diacetone alcohol, acetyl carbinol, acetyl acetone, acetophenone, ethylidene acetone, cyclopentanone, cyclobutanone, diacetin, triacetine, diethyl phthalate, methyl and ethyl derivatives of benzene and toluene sulphonamides, and alkyl ethers of ethylene glycol. Residual plasticizer &c. may be removed from the filaments by extraction with water, alkaline solutions, &c. The amount of high-boiling point solvent or plasticizer employed is usually not greater than 10-50 per cent of the weight of the cellulose acetate, although the proportions may be increased if the boiling point of the addition is relatively low. Specification 317,098 is referred to.
Patent GB-1083112-A (GB)
Title: Apparatus for checking rod-like articles such as cigarettes
Inventor: ESENWEIN ALBERT
IPC: A24C5/34
Filed: 1964-02-11
Abstract: 1,083,112. Testing cigarettes. K. KÍRBER. March 12, 1965 [Feb. 11, 1964], No. 2204/67. Divided out of 1,083,111. Heading A2C. A device for checking the wrappers of cigarettes or the like including an outer wrapper and a filling, comprises means to produce a pneumatic measurement value dependent on the amount of the air flowing through the wrapper and means to produce an additional metered air flow which influences or stabilizes the pneumatic measurement value. The device comprises a transducer 13 having a checking chamber 14 bounded by a plate 18 and a side wall 23 bolted thereto and including a cover 22. A diaphragm 30 is clamped between two rings 28 and 29 mounted on the plate 18 and located within the chamber 14. Mounted on an insulating block 38 in the plate 18 is an electrode plate 40 which forms with the diaphragm 30 a capacitor, the air between the diaphragm and the plate 40 and within a bearing ring 27 formed on the plate 18 acting as di-electric. The capacitor is variable depending upon the flexing of the diaphragm due to the pressure in the chamber 14, itself depending upon the air passing through cigarettes being tested and which is introduced into the chamber 14 via the connection 24. A removable outlet nozzle 26 of predetermined size provides an additional metered airflow to prevent the build-up of pressure in the chamber 14. The capacitor is connected to an oscillator housed on a plate 50 secured to the underside of plate 18 and enclosed in a chamber 16. The output of the oscillator controls the rejection of faulty cigarettes.
Patent GB-1423033-A (GB)
Title: Heat-activated light-sensitive organic silver-salt material
IPC: G03C1/498
Filed: 1973-01-16
Abstract: 1423033 N-Bromo- or chloro-phthalazinones MINNESOTA MINING & MFG CO 16 Jan 1973 [17 Jan 1972] 2319/73 Heading C2C [Also in Division G2] N-Bromophthalazinone is prepared by adding dropwise bromine to a cold solution of 1-(2H)- phthalazinone in aqueous methyl alcohol followed by dropwise addition of aqueous sodium hydroxide. N-Chlorophthalazinone is prepared by mixing 1-(2H)-phthalazinone into cold aqueous sodium hypochlorite solution.
Patent GB-367139-A (GB)
Title: Improvements relating to extractors for tubes or the like
IPC: B25B27/02
Filed: 1931-01-23
Abstract: 367,139. Tube extractors. SQUIRRELL, F., 15, Harrington Road, South Norwood, London. Jan. 23, 1931, No. 2334. [Class 61 (iii).] The substantially semicircular jaws of a tube extractor are freely separable and are moved radially by a wedge drawn up by a central rod, the jaws and tool body having interengaging shoulders. Jaws 5, Fig. 1, carry shoulders 6, 12 engaging respectively in a recess 3 in the body 1 of the tool, and beneath the tube end 13, and are expanded by a wedge 9 on a rod 8 upon rotation of a nut 10. The withdrawal is effected by rotation of a nut 18 engaging a screw-thread on the body 1, and bearing on a bridge member 16, 17 resting on the tube plate 14. In a modification, Fig. 3, the jaws 5, Fig. 6, carry a T-head 22, 23 engaging the head 19, Fig. 5, of the body 1. The withdrawal is effected by upward movement of a block 33 bearing on a nut 18, and actuated by rotation of a bolt 34 through levers 29, 30 pivoted to the block 33 and to pedestals 27 bearing on a plate 25 and movable thereon. The levers 29, 30 may bear directly on the plate 25. For extracting tubes which lie inclined to the plate, adjustable legs may be carried on the bridge member, and means such as projections engaging other tube holes may prevent slipping of the bridge. According to the Provisional Specification the nut 10 may be replaced by a knurled nut and spring washer, and springs acting between the body of the tool and the jaws, or between the jaws, may replace the wedge actuating member.
Patent GB-139567-A (GB)
Title: Improvements in and relating to devices for securing stair rods in position
IPC: A47G27/06
Filed: 1919-01-30
Abstract: 139,567. Watson, T. K. Jan. 30, 1919. Stair-rods; stair-rod fastenings. - Relates to stair-rod fastenings comprising screws projecting from the angle of the stairs and passing through holes in the stair rod, nuts engaging the screws so as to hold the rod thereon. Accordto the invention, the stair rods are so formed that the nuts are accommodated wholly below the face of the rod. In the form shown in Fig. 2, the nuts 3 on the fastening-screws 1 are housed in recesses in the stair-rod 2. A bush or liner may be inserted into each recess. When a tubular stair rod is used, the nuts are inserted through holes in the face of the rod and are accommodated within it. Covers 6, which may be hinged as shown in Fig. 2, or slidable, are preferably provided to conceal the nuts.
Patent GB-882615-A (GB)
Title: Electric power cable
Inventor: JOHNSEN JOHN NORMANN
IPC: H01B7/02
Filed: 1960-01-22
Abstract: 882,615. Cables. STANDARD TELEPHONES & CABLES Ltd. Jan. 22, 1960 [Jan. 28, 1959], No. 2392/60. Drawings to Specification. Class 36. A paper-insulated metal-sheathed power cable has a single layer of impregnated fabric insulating tape in contact with the inner surface of the paper insulation and a further such single layer in contact with the outer surface of the paper insulation of at least one conductor. The cable may have several sector-shaped conductors thus insulated, these being provided with outer belted insulation having a single fabric layer in contact with its outer surface. The tape may be of cotton, linen, silk, glass or other woven materials and is preferably impregnated with varnish; it may, however, be impregnated only with the impregnant used for the insulation.
Patent GB-802260-A (GB)
Title: Gear shaving cutter
IPC: B23F21/28
Filed: 1957-01-23
Abstract: 802,260. Gear - finishing. NATIONAL BROACH & MACHINE CO. Jan. 23, 1957 [Feb. 20, 1956], No. 2416/57. Class 83 (3). A gear-shaving-cutter comprises teeth having the cutting-edges formed on lands which increase in width towards the centre of each tooth. In shaving a helical-gear with a standard cutter using diagonal traverse, the acute corners of the teeth are not properly machined. This fault is eliminated with the present cutter. The grooves 12 in the teeth are of approximately equal width and have inclined sides so that the edges 20 have an obtuse cutting-angle and the edges 18 a cutting- angle of 90 degrees. The lands vary in width from 0.015 to 0.020 inches at the ends of the teeth to 0.025 to 0.035 inches at the centres, with a groove-width of 0.040 to 0.045 inches. The outside land is not of increased width, as is conventional.
Patent GB-776477-A (GB)
Title: Improvements in carding fully synthetic fibres
IPC: D01G15/04
Filed: 1955-01-27
Abstract: 776,477. Carding textile fibres. BADISCHE ANILIN- & SODA-FABRIK AKT.-GES. Jan. 27, 1955 [Feb. 25, 1954], No. 2449/55. Class 120 (3). Synthetic fibres e.g. polyamide, polyvinyl chloride, polyacrylonitrile, or polyester fibres, or such fibres in admixture with artificial fibres e.g. rayon staple fibre, or natural fibres e.g. cotton or wool, are carded when in a completely dry condition. The carding apparatus employed e.g. carding-engine or lap converter, may comprise an air-tight enclosure and air-conditioned so that carding occurs in an atmosphere free from moisture. The fibres or the lap formed therefrom may be dried e.g. within a beater opener, before carding and may be conveyed to the carding apparatus in moisture-proof sacks. It is stated that antistatic agents are employed.
Patent GB-347267-A (GB)
Title: Improvements in the carbonizing of metal surfaces
IPC: C23C8/34
Filed: 1930-01-24
Abstract: 347,267. Coating metals. WESTING- HOUSE LAMP CO., Bloomfield, New Jersey, U.S.A.-(Assignees of Iredell, C. V. ; 376, Prospect Street, East Orange, New Jersey, U.S.A.) Jan. 24, 1930, No. 2556. Convention date, Jan. 25, 1929. [Class 82 (ii).] The surfaces of metals such as nickel or nickel alloys are carbonized by oxidizing the surfaces of the metals and then exposing the oxidized surfaces at elevated temperatures, e.g. 800-1000‹ C., to a hydrocarbon gas, such as acetylene, containing a proportion of a vaporized liquid hydrocarbon such as petroleum, ether, naphtha, or kerosene. The wire 1 to be carbonized is fed from a reel 2 over a wheel contact 3 connected by a spring contact 4 to a battery 5 and is passed vertically downward through an oxidizing furnace 6 and a carbonizing furnace 7. The wire then passes over a wheel contact 8 enclosed in a box 27 and connected by a spring contact 9 to the battery 5 through a variable resistance 10. The wire is then wound up on a reel 11. Acetylene gas from a cylinder 12 is passed through petroleum ether 15 in a chamber 14 and thence by a pipe 16 through a flow meter 17 to the upper end of the furnace 7. The liquid hydrocarbon 15 is replenished from a chamber 21 by a siphon 20. The carbonized wire is then subjected to a degasification in vacuo. The carbonized wire is then used for the production of electrodes for electron discharge devices.
Patent GB-187531-A (GB)
Title: Improvements relating to electric sound-producing horns
IPC: G10K9/15
Filed: 1921-10-20
Abstract: 187,531. Rogers, T. S. Oct. 20. 1921. Electromagnetic interrupters. - In an electric horn in which the armature 7 of the electromagnet 1 is directly attached to the diaphragm 8, the interrupter contacts 9, 10 carried on an adjustable plate 11, are operated by one end of a spring-controlled rod 4, the other end of which bears against but is not attached to the armature 7. Specification 191,831 is referred to.
Patent GB-1242632-A (GB)
Title: Improvements in or relating to distance pieces for concrete re-inforcing rods
Inventor: OLIVER KEITH WILLIAM
IPC: E04C5/20
Filed: 1969-01-16
Abstract: 1,242,632. Reinforcement spacers. CELMAC PLASCLIP Ltd. 14 Jan., 1970 [16 Jan., 1969], No. 2611/69. Headings E1W and E2B. A plastics reinforcement spacer has a spacing member B with a U-shaped slot b<SP>2</SP> with teeth or projections which engage teeth or projections on a locking member C. The spacing member B may be hollow, with a rim and radial spokes b' (Fig. 17), or solid with ribs b<SP>4</SP> (Fig. 4). The locking member. may have spacing legs c<SP>2</SP>, (Fig. 1) and an upper aperture c<SP>3</SP> for locating either a pin d on a support D for a further rod, (Fig. 4), or a rod (d<SP>3</SP>) carrying feet (d<SP>2</SP>) for bracing the the spacer, (Fig. 5, not shown), or a rod (d<SP>3</SP>) whose other end is inserted into the locking member of another opposed spacer, (Fig. 6, not shown). The teeth on the spacing member may project towards each other across the U- shaped slot, or may project perpendicularly to the face of the member, (Fig. 7), when two sets of teeth are necessary at each side of the slot, and four sets c<SP>1</SP> on the locking member, (Fig. 8). The locking member may be strapped to the spacing member, (Fig. 9, not shown).
Patent GB-164410-A (GB)
Title: Improvements in apparatus for separating solids from liquids
IPC: B04B11/06
Filed: 1920-04-22
Abstract: 164,410. Mumford, G. April 22, 1920. Density separators; discharging. -Separators for separating solids from liquids have an axial inlet a, tubular arms B radiating therefrom to a conical chamber C, and solid-discharging outlets c on the outer periphery of the chamber. The liquids are discharged either from outlets on the inner periphery of the separating chamber or by way of radial tubes B<1> and an axial outlet a'. The solids are removed from the wall of the outer casing by scrapers E moved by a chain or circular rack driven by pinions e, e<1>. Several forms of separating-drum are described.
Patent GB-1524292-A (GB)
Title: Winding machine for winding one or more yarns
IPC: B65H65/00
Filed: 1976-01-23
Abstract: 1524292 Attaching yarn in winding machines BARMAG BARMER MASCHINENFABRIK AG 23 Jan 1976 [14 June 1975 4 Aug 1975] 02653/76 Heading D1J A winding machine for one or more yarns has a winding spindle 12 which carries tubes 13, the spindle or tubes being provided with catching means 42, 42'; a traverse device and a yarn attachment arm 30 with guides 31, 31', the arm being arranged to pivot from a ready position to a rest position along a path which circumscribes the winding spindle, the guides also being arranged to move axially of the winding spindle. This carries the yarns over the tubes and into the catching means. A cylinder operated rack and pinion pivots the arm 30 about its axis 29 and a further piston cylinder unit 36 engages the shaft of arm 30 by a fork 33 and disc 32 to provide the axial movement. Alternatively a pin on the shaft of arm 32 can engage a cam slot to give the axial movement during part of the pivotal movement. Another embodiment has the shaft of arm 30 set at an angle to the axis of spindle 12 so that the pivotal movement has a component in the axial direction of the spindle. The traverse of yarn is produced by guides 21 moved by screw 20, the traverse being assisted by grooved drum 19 which may function at the traverse reversal points. Auxiliary yarn guides 25 are provided to form waste bunches before the package is wound. The spindle or package is driven by a pressure roller 18. Roller 18 and the traverse devices are mounted on a sliding carriage 16. A suitable fluidic circuit to control the sequence of operations of the attachment arm and auxiliary guides is described and illustrated in Fig. 8 (not shown).
Patent GB-1558839-A (GB)
Title: Remote control device for photographic flash unit
IPC: G03B15/04
Filed: 1977-01-21
Abstract: The device consists of a transmitter (Fig. 2) and a receiver (Fig. 1). The synchronous release is performed with the aid of an emitter (14) which operates in the infrared band and is switched on by the shutter (10) of a photographic camera, and of a receiver for the flash gun (B), which receiver contains a photocell (1) and an electrical selection circuit (2) which is tuned to the modulation frequency of the infrared rays. <IMAGE>
Patent GB-1495521-A (GB)
Title: Device for mechanically assisting calculation
IPC: G06G1/00
Filed: 1975-01-21
Abstract: 1495521 Calculating apparatus BRITISH STEEL CORP 21 Jan 1975 [21 Jan 1974] 02735/74 Heading G4B A device for mechanically assisting calculation comprises a circular base-plate 10, a grid 11 which may be printed on paper or plastics material retained on the base-plate, in a circular recessed portion thereof, a circular transparent plate 12 having a diameter less than the recess and located above said grid in said recessed portion and pivotally attached to the base-plate by a pin 15, said transparent plate being permanently marked with four concentric circular scales 16, 17, 18 and 19 and being receptive to a marking instrument such as a pencil or a pen, and a pointer element 21 adjustably attached to an arm 22 pivotally secured to the base of the base-plate 10 by the pin 15. The grid 11 is marked with a prominent diametric datum line 13. The pointer element 21 may be adjusted to point to any one of said four concentric circular scales. A transparent shelf 28 of the arm 22 extends over the four circular scales and is provided with four arcuate scales with divisions corresponding to eighths of a division of the respective circular scales. Vectors may be represented by lines drawn on the transparent plate 12 using the grid to measure the length of such lines and the circular scales to determine their direction and the device is particularly useful as an aid to calculation in the dynamic balancing of rotating machinery.
Patent GB-819508-A (GB)
Title: Improvements in dry powder type fire extinguishers
IPC: B62M7/00
Filed: 1957-01-25
Abstract: 819,508. Fire-extinguishers. JONES & CO. (ENGINEERING) Ltd., S., and PHILLIPS, C. H. Jan. 27, 1958 [Jan. 25, 1957], No. 2841/57. Class 47 A fire extinguisher from which dry powder is expelled by pressure from a compressed gas cartridge comprises an elongated cylindrical casing 1, a holder 6, for an axially arranged gas cartridge 7 and seal piercing means 5 incorporated in a closure cap 3 applicable to one end of the casing 1, a radially directed discharge nozzle 15 located at the opposite end of the casing 1, and a sleeve 9 detachably connected to the cap 3 and surrounding the cartridge 7, the sleeve incorporating an extension tube 10 led axially of the casing to a point near the said opposite end thereof whereby gas from the cartridge is released near the discharge nozzle. The gas outlet 12 from the extension tube 10 is located in a radial branch 11 .and is directed to give a whirling effect to the powder. The nozzle 15 is located at the base of a frustoconical end piece 13 of the casing with its outlet aligned with a hole in a protective extension of the casing 1.