baber/WOPTO huggingface dataset:
Patent GB-179991-A (GB)
Title: Improvements in and relating to the purification of naphthalene and other volatile solid organic bodies
IPC: C07C7/00
Filed: 1921-01-19
Abstract: 179,991. Andrews, C. E., Conover, C., John, K. B., and Ruth, C. E. Jan. 19, 1921. Naphthalene.-A volatile solid organic substance such as naphthalene is purified by melting it, separating the lighter portion from the heavier, subjecting the lighter portion while hot to a current of an inert gas such as air, and fractionally condensing the vapours. During vaporization the material may be treated with caustic alkali solution of 50 per cent strength. The crude material may be melted in a receptacle 23, Fig. 1, from which the lighter fraction is led by a pipe 27 to a vaporizer 24. The less volatile residue from the vaporizer 24 is conveyed to a hotter vaporizer 26, the gases from which are led over the surface of the material in the primary vaporizer 24. There may also be a third " vaporizer " 25 at a lower temperature, partially condensing the vapours flowing through it from the other vaporizers, and feeding the primary vaporizer with condensed material. The gases pass from one vaporizer to another and to the first condenser 30 by elbow pipes 32. Air or inert gas is supplied to the lowest vaporizer 26 or to any of the others. The melter 23 may consist of a rectangular casing having a removable cover carrying a closed hopper. A coil, through which hot oil &c. may be circulated, extends downwards but leaves a space at the bottom for cleaning out the melter by way of a man-hole. The preferred melting temperature is 110-120‹ C., water being thus driven off. Each vaporizer may consist of a rectangular tank provided with fixed and removable cover sections 50, 51, Fig. 11. Hot oil or the like is circulated through pipes 54 forming two spirals at different levels. To the removable cover section are connected baffles 55, 56, staggered so that the gas passes alternately over and under them. Openings for thermometers and other instruments are provided. In the lowest vaporizer 26 there is also a gas supply pipe 64 which, after passing around the tank within the molten substance, extends into the free space above it, and is provided with outlet nozzles 67. Another separatelycontrolled pipe 72 injects gas below the surface of the liquid. The condensers 77-79, Fig. 1, consist of sheet-metal chambers spaced apart and connected by low passages 83. In the second and third condensers may be fitted louvres 84, pivoted as shown in Fig. 21, so that they can be opened to any desired extent.
Patent GB-541175-A (GB)
Title: Improvements in and relating to fuzes for projectiles
IPC: F42C15/26
Filed: 1940-02-09
Abstract: 541,175. Projectile fuzes. GAZDA, A. Feb. 9, 1940, No. 2557. Convention date, Feb. 11, 1939. [Class 9 (i)] Relates to impact fuzes having one or more transversely-sliding centrifugal bolts c holding up the striker b', and consists in providing each bolt with a spring e for pressing the bolt into engagement with the striker, and a set-back securing member, such as a spring-pressed 'ball f, for release when the projectile is discharged from the gun. On impact, the striker is displaced inwardly against yielding means such as a spring g.
Patent GB-491375-A (GB)
Title: Improvements in or relating to the manufacture of hollow metal tubes or shafts
IPC: B21C37/18
Filed: 1937-01-29
Abstract: 491,375. Golf-club shafts. McMINN, W. W. Jan. 29, 1937, No. 2668. Convention date, Feb. 20, 1936. [Class 132 (ii)] [Also in Group XXII] A golf-club shaft is formed by coiling helically a strip of metal of uniform width and thickness, sealing the helical joint as by brazing or welding and working the tube to vary the taper and wall thickness. The brazing may be effected as described in Specification 477,526. A strip 10, Fig. 1, having bevelled edges 12, 14 is wound into a tubular blank, and the seam 16 is brazed or welded. The blank is cylindrical, progressively tapered, or tapered by varying degrees along its length according to the wall thickness desired at different points in the completed shaft. A shaft which is tapered externally and has a wall thickness which increases progressively towards the smaller end is produced from a cvlindrical blank. A shaft whose wall thickness increases progressively to the point 28, Fig. 2b, and then increases progressively at a greater rate towards the club head end 26 is formed from a tube which is cylindrical between the points 24, 28, but increases in diameter from the point 28 to the end 26. A shaft, Fig. 3b, having the greatest wall thickness intermediate its ends is produced from a tube, Fig. 3a, having a corresponding increased diameter at the central region of the tube. Different forms are produced by varying the forms of the blanks.
Patent GB-1534274-A (GB)
Title: Size reduction
IPC: B02C19/18
Filed: 1975-01-21
Abstract: 1534274 Impact pulverizers; comminuting at low temperatures BOC INTERNATIONAL Ltd 21 Jan 1976 [21 Jan 1975] 2670/75 Heading B2A Particulate material is comminuted by a method which includes precooling of the particulate material feeding it to a rotary impact mill, in which it is comminuted, cold gas being passed around a circuit of which the interior of the mill forms a part, the cold gas being formed by evaporating cryogenic liquid in the circuit outside the mill. The system comprises a hopper 2 and feed screw 4 feeding a main hopper 6. The main hopper feeds a mill 22 via a screw conveyor 8. The mill includes a screen, (not shown). Ground product is discharged via a pocket wheel valve 56. In operation, when the material in hopper 6 reaches a level sensor 14 the screw feeder is stopped, and restarted when the level falls appropriately. Liquid nitrogen is sprayed into a passage 26 communicating with the mill 22 and the hopper 24; the liquid nitrogen being stored in a vessel 32 The liquid nitrogen is also sprayed into the conveyor 8. A temperature sensor 44 or 44A is arranged in the passage 26 or under the mill and a controller 42 is programmed to open a solenoid valve 40 and close a valve 38. Liquid being sprayed into the conveyor 8. If the temperature falls below the range both valves are closed and if it rises above the range both valves are open.
Patent GB-368472-A (GB)
Title: Improvements relating to doctors for paper making and like machines
IPC: D21G3/02
Filed: 1931-01-28
Abstract: 368,472. Doctors for paper-making and like machines. NORTON & CO., Ltd., SIR J. F., Adelphi Iron Works, Salford, Manchester.-(Rice, Barton, & Fales, Inc. ; Worcester, Massachusetts, U.S.A.) Jan. 28, 1931, No. 2754. [Class 96.] A doctor apparatus comprises a fixed support, a composite blade secured thereon comprising a scraper blade 12, Figs. 1 and 2, and one or more spring blades 15, 16 pressed directly thereon and extending the full width of the scraper blade, i.e. in the direction of the width of the paper-making or like machine, with means for adjusting this pressure at different points along the blade. The flexible scraper blade 12, which is pressed against the roll 14 by the spring blades 15, 16 and which has a front edge 13 ground or bevelled to fit the roll, is received in a slot 11 of the support 10, the blades 15, 16 being also bevelled as at 19 to keep out dust, fibre, &c. and being received in slots 110, recesses 17 enabling the blades 15, 16 to be fitted on countersunk clamping screws 18 provided with elongated washers 20. The washers 20 are bevelled to facilitate cleaning and are initially set parallel with the axis of the roll, the screws 18 being loosened, the washers are swung round the required amount towards the roll where necessary and the screws tightened. The front of the spring blade 15 may be slotted between each screw 18 to localize the effect of turning the washers.
Patent GB-547629-A (GB)
Title: Manufacture of a vat dyestuff
IPC: C09B7/10
Filed: 1941-03-03
Abstract: 547,629. Thioindigo dyestuff. WILKINSON, D. G., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 3, 1941, No. 2814. [Classes 2 (iii) and 15 (ii)] 5:61 - Dichlor - 7:4<SP>1</SP> - dimethyl - 2:2<SP>1</SP> - bis - thionaphthenindigo, which is suitable for dyeing and printing cotton-viscose union fabrics, is prepared by condensing 5-chlor-7-methyl-3- hydroxythionaphthen with 6-chlor-4-methyl- 3-hydroxythionaphthen, one of the components being in the form of a reactive 2-derivative of the corresponding 2:3-quinone. The dyestuff may be converted into its leucoester salts by the usual methods. In examples, the dimethylamino anil is used as the reactive-2-derivative. In a further example, 5:6<SP>1</SP>-dichlor-7:4<SP>1</SP>-dimethylthioindigo is converted into the leucoester salt by means of copper powder and sodium pyrosulphate in the presence of pyridine.
Patent GB-189689-A (GB)
Title: Improvements in metal re-inforcement for concrete
IPC: E04C5/06
Filed: 1922-01-31
Abstract: 189,689. Stokes, G. W. Jan. 31, 1922. Reinforced concrete. - A reinforcement for concrete roads, rafts, and slab portions of structures, consists of lower parallel rods b, Fig. 2, and upper parallel rods c and transverse rods d, connected by pyramidal wire frames a, Figs. 1 and 5. The wire is first shaped in the flat as two triangles having a common apex, and the planes of the triangles are then bent to an inclination of about 45‹. The lower bars are threaded through the base angles of the frames, which are, formed with or without loops a<1>. The upper bars rest on the apices of the pyramids and are secured by bending over the free ends of the wires. In the form shown in Fig. 5, the apices are formed with chairs or double loops for the upper bars which are locked therein by the bars d.
Patent GB-1068444-A (GB)
Title: Weft inserting mechanism for a loom
IPC: D03D47/00
Filed: 1966-01-21
Abstract: A weft inserting mechanism in a loom for producing two fabrics side by side and laying two wefts in each fabric comprises a rocker mounted to pivot about a bearing point on the loom frame, pivoted at a second point to an operating arm for the inserter and at a third point to a crank, the operating arm being pivoted at one end to an inserter frame and guided at the other end to oscillate in a direction perpendicular to the direction of the inserter movement. The weft inserting mechanism is mounted centrally of the looms and has two weft inserters at each end.
Patent GB-242485-A (GB)
Title: Improvements in or relating to rolling mills for the production of metal sheets or plates
IPC: B21B1/34
Filed: 1925-02-02
Abstract: 242,485. Davies, H. L., and Cound, S. R. Feb. 2, 1925. Rolling. - Sheets are produced by heating rolling, doubling and trimming in apparatus which comprises four furnaces A, A<1>, A<2>, A<3>, three rolling-mills B, B<1>, B<2> driven from a motor E and two sets of doublers and trimmers C, C<1>. The path of the material throughout is shown by dotted lines beginning with the raw material R taken from the furnace A to the sheet rolling-mill B and passing therethrough and returned to the re-heating furnace A<1>. From A<1> the sheet travels along the path 1 to the mill B a second time, where it is rolled to the desired length. It then passes to the doubler C, is re-heated in furnace A<2>, and forwarded along the path 2 to rolling-mill B<1>. The doubled sheets rolled to the required length in mill B<1> are directed in equal numbers to the doubler C by the path C and to the doubler C<1> by path 2<1> and brought for re-heating along paths 4 and 4<1> to furnaces A<2> and A<3> respectively. The four-fold sheets from furnace A<2> are brought along path 4 to mill B<1> and from furnace A<3> along path 4<1> to mill B<2> passing from both mills to doubler C<1> along path 8 through re-heating furnace A' and mill B<2> and are delivered at F in the form of " boxes " of eight sheets. Specification 227,553 is referred to.
Patent GB-900581-A (GB)
Title: Improvements in or relating to the control of electric switches
Inventor: PARTOON ERNEST HAYWOOD
IPC: H01H13/50
Filed: 1958-01-29
Abstract: 900,581. Momentary - contact switches. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Jan. 22, 1959 [Jan. 29, 1958], No. 2926/58. Class 38 (5). A momentarily - operated electric switch (micro-switch 10) is operated by a bolt 17 held in the member 12 by a permanent magnet 20 acting on a steel annulus 19. Screwed stud 14 is provided for securing the operating member to e.g. a machine tool. When the load on the switch increases, due to the limit of travel of button 11 being reached, the magnet 20 is pushed out of contact with the steel annulus 19 and the consequent loss of rigidity of the device allows the switch button to restore itself.
Patent GB-104380-A (GB)
Title: Improvements in Jigs for Drilling, applicable also for use in Checking Drilled Work.
Inventor: CHAMBERS HERBERT
IPC: B23B47/28
Filed: 1916-03-01
Abstract: 104,380. Chambers, H. March 1, 1916. Drilling.-A drill jig is described with reference to drilling the bosses of aeroplane propellers. Plates 2, with plain or bushed apertures 3 corresponding to the holes to be drilled, carry bars 6 attached by screws and dowels. The two plates are so made that the edges 10 of the bars occupy identical positions relatively to the holes 3. A shaft 11, which is a push fit in the bore of the propeller, has its ends slotted away to engage the bars and the bore of the plates as shown, the surfaces 13 being in one plane. The bars may have a projection 8 extending into the bore of the plates; or the bars may be let into grooves on the plates.
Patent GB-162104-A (GB)
Title: Improvements in toy building bricks, blocks or members
IPC: A63H33/08
Filed: 1920-02-02
Abstract: 162,104. Allday, A. D. Feb. 2, 1920. Building-blocks.-Relates to interlocking toy bricks of the type having projections on one face and recesses in the opposite face, and consists in making the projections b of truncated pyramidal form, the recesses c being of corresponding shape. The bricks are made of clay or other mouldable material, and have the proportions of an ordinary brick. Half bricks, angle bricks, and shaped bricks for arches &c. may also be similarly made.
Patent GB-574079-A (GB)
Title: A new or improved centrifugal pump
IPC: F04D29/22
Filed: 1944-02-18
Abstract: 574,079. Centrifugal pumps. BRACKETT & CO., Ltd., F. W., and BRACKETT, F. W. Feb. 18, 1944, No. 3105. [Class 110 (i)] The impeller 38 of centrifugal pump for liquids which may contain solids is a hollow cylindrical casting formed with a single passage 24 of constant cross-section leading from an axial inlet eye to discharge at the periphery into a casing 17 having a tangential outlet, so that there is no lodgement anywhere for solid matter. The passage 24 is curved backwards in the plane of rotation. The impeller is formed with shallow straight ribs 33, backwardly inclined, on its faces, working in liquid spaces 32, in known manner to assist in balancing the pressure on the two sides of the rotor and to reduce backpressure opposing the rotation of the impeller and likely to cause leakage along the gland 30 surrounding the inlet eye.
Patent GB-289569-A (GB)
Title: Process for degreasing bones and other materials containing moisture
IPC: C11B1/10
Filed: 1927-02-03
Abstract: 289,569. British Glues & Chemicals, Ltd., and Drew, R. B. Feb. 3, 1027. Fats, extracting by solvents.-Bones and other material containing fat and water are degreased by vapours of a solvent which vaporize the water, the mixed vapour being used for further degreasing. The water is finally condensed and separated. Crushed bones &c. are introduced by a door e<1> into degreasing vessels c<1> - - c<3> and rest on gratings d'. Solvent, e.g. benzine, in lower stills g<1> - - g<3> is vapourized by steam &c. coils g<x> and passes through the bones, part being condensed and returning with grease and part passing through pipes i, i<1> into the top of the next vessel c<2>, wherein the process of the first still is repeated, the dissolved fat and mixed vapours passing into the still g<2>. The vapours are then led to the top of the vessel c<3>, and pass thence to a condenser j, a separator l for the water, and a still a, whence the pure vapours are led into the vesses c<1>. When the process is first started, benzine vapour may be led by a pipe c into the top of all the degreasing vessels, the vapours in each case. passing direct to the condenser j. When the bones are partly dried, the vessels are connected in series. The residue in the stills g' is finally drawn by a pipe s into a still t into which live steam is introduced by a valve u, vapours passing to the condenser j. Suitable, valves n, r are provided, so that the vapours may be led from any point to the condenser j. The process may be carried out under pressure of the liquid in column m or under reduced pressure.
Patent GB-809531-A (GB)
Title: Improvements in and relating to constant mass flow air valves
Inventor: WOLFENDEN DONALD ROBINSON
IPC: F16K1/12
Filed: 1954-11-05
Abstract: 809,531. Fluid-actuated valves. ENGLISH ELECTRIC CO. Ltd. Nov. 4, 1955 [Nov. 5, 1954], No. 32150/54. Class 135. A constant mass flow air valve which keeps, for a given air temperature, mass flow constant irrespective of air pressure, has a spring-loaded piston 7 exposed at one side, e.g. on the righthand side within the shell B, to the pitot pressure at the valve entrance 2 acting in the opposite direction to the spring loading, e.g. via filter A, the other side of the piston being exposed to the pressure in a cylinder 5 communicating through a restriction C with the valve entrance, and through an adjustable bleed F with the atmosphere, and a valve closure member 15 connected to the piston. The bleed operates under choked conditions and is controlled by a solenoid-actuated needle valve 28 whereby two sizes of the bleed give two distinct rates of mass flow. One spring or, in order to reduce the length of the valve, two springs may be used, one 11 operating after the other 12 has been compressed a given amount.
Patent GB-1124619-A (GB)
Title: Process for optical resolution of calcium pantothenate
IPC: C07C233/46
Filed: 1967-01-23
Abstract: A process for the optical resolution of racemic calcium pantothenate comprises seeding a supersaturated aqueous methanol solution of racemic calcium pantothenate with crystals of D- or L-calcium pantothenate having one molecule of water of crystallization and four molecules of methanol of crystallization and stirring at or below room temperature to crystallize D- or L-calcium pantothenate. After the crystals have been removed further racemic calcium pantothenate is added to form a supersaturated solution again, which is then seeded with crystals of the other enantiomer having one molecule of water of crystallization and four molecules of methanol of crystallization; the process is then continued as above, D- and L-calcium pantothenate crystals being obtained alternatively.  The seed crystals are obtained by crystallizing D- and L-calcium pantothenate from aqueous methanol solution. An example is given.
Patent GB-1359380-A (GB)
Title: Water circulating pumps for internal combustion engines
IPC: F01P5/10
Filed: 1972-01-24
Abstract: 1359380 Centrifugal pump SKF (UK) Ltd 24 Jan 1972 [28 Jan 1971] 3406/71 Heading F1C A water pump assembly for an internal combustion engine comprises a cover 1 including a boss 2 having a bore 3 through which extends a shaft 13 carrying impeller 16 and driving belt pulley 28, a water seal 19 surrounding the shaft and a pair of roller contact bearings 7 of the angular contact type having inner bearing rings 8 fixed to the shaft and outer bearing rings 9 fixed in the boss 2. The raceways on the inner rings 8 face radially outwards and axially towards each other and the raceways on the outer rings 9 face radially inwards and axially away from each other. The centre of the pulley groove 32 is axially aligned with the mid point between the centres of balls 10. When there is more than one pulley groove they are arranged uniformly between the pressure centres b. As shown integral bearing rings 9 are an interference fit in aluminium boss 2 and are located by snap ring 11. Bearing rings 8 are an interference fit on, or adhered to, e.g. by epoxy resin, the mild steel shaft 13 and are located by snap ring 14. A flinger is arranged in the chamber 24 to prevent water seeping through seal 19 reaching the bearing by flinging it out through holes 26. Water entering through inlet 4 is forced to the right by radial vane impeller 16.
Patent GB-566030-A (GB)
Title: Improvements relating to galvanising apparatus
IPC: B65G49/04
Filed: 1943-03-02
Abstract: 566,030. Conveyers. HOPE & SONS, Ltd., H., and RINGROSE, T. H. March 2, 1943, No. 3431. [Class 78 (i)] [Also in Group II] Relates to apparatus for galvanizing articles such as window frames by dipping them in a bath b, of the kind in which the articles are suspended from a carriage f movable along an overhead runway c<1>, c<2>, the portion c<2> of the runway immediately above the bath being separate from the main portions c<1> and suspended from a hoist, so that when the carriage is on the portion c<2> that portion may be lowered and raised for immersing the articles in and withdrawing them from the bath. After withdrawal, articles on the same hook are liable to adhere together and, according to the invention, the runway portion c<2>, when raised into alignment with the main portions c<1>, is adapted to be arrested suddenly in order to impart sufficient shock to the suspended articles to separate them, the runway hoist being provided with a slipping clutch n to prevent injury to the motor k by transmission of the shock. The shock is caused by impact of the runway portion c<2> with the portions c<1>, which are mitred or provided with stops to ensure alignment. The articles are suspended by hooks o from a bar p preferably hung by springs q from the carriage f which consists of a plate suspended by rods g from rollers e running in tracks on the runway. The runway portion c<2> is suspended by a cable i from a drum j rotated by the motor k through a gear-box m and the clutch n. Adjustable grills r, as described in Specification 565,500, [Group II], are preferably provided to guide the window frames into the bath. The carriage f may move under gravity by inclining the runway slightly to the horizontal, automatically operable stops being provided for bringing the carriage to rest on the runway portion c<2>.
Patent GB-901635-A (GB)
Title: Improvements in or relating to carrier units for electrical circuit elements for use in electrical installations, and methods of wiring such carrier units
IPC: H05K7/06
Filed: 1959-01-30
Abstract: 901,635. Assembling components on circuit boards. SIEMENS & HALSKE A.G. Jan. 30, 1959 [Feb. 28, 1958], No. 3442/59. Class 83 (2). [Also in Group XXXVI] In the production of a wiring arrangement for electrical equipment comprising a plate of electrically-insulating material having apertures therein with wiring extending over the surface of the plate in accordance with a desired wiring scheme, loops are formed in the wiring and are passed through the said apertures, the loops being retained in the apertures and serving as connection points to which circuit elements used in the equipment are subsequently connected. The apertures may be provided in the plate only where required or a rectangular array of holes may be formed in the plate, selected ones being used as appropriate. In Fig. 5, a loop passing through an aperture is retained therein by means of a conducting sleeve 5 which forces the wiring of the loop against the walls of the aperture. A component lead 7 passing centrally through the sleeve 5 bears against the loop to make contact therewith. In Fig. 9, the loop is wound helically within the aperture being thereafter slightly compressed to retain it therein with the lead 7<SP>1</SP> of a component passing axially through the turns of the helix. Electrical connection between the loop and the component is subsequently completed by dip-soldering. Fig. 8 shows a tool for producing the helical form of loop. A plunger 9 forces a loop of wire into grooves 12 in the walls of the central aperture of a rotary tool 10. The tool is rotated as shown, by the arrow, whereby a helical loop as shown in Fig. 9 is produced.