baber/WOPTO huggingface dataset:
Patent GB-204711-A (GB)
Title: Improvements in or in connection with thrashing machines
IPC: A01F12/00
Filed: 1923-09-26
Abstract: 204,711. Couttolenc, E. Sept. 27, 1922, [Convention date]. Jigging elevators.-An apparatus for use in combination with a simple thrashing-machine comprises a device for softening the straw, a straw-cutter, a cleaning device for the thrashed products and a grain elevator located beneath the thrashing-machine. The straw from the shakers is guided by a hopper 15 to a pair of belts 10, 11 carrying transverse beaters, that carry the straw in a curved path around the rollers 5, 6, the tension of the belts being maintained by rollers 8, 9 carried by spring-pressed arms 12, 13. The straw then passes between a plate 19 and a spring-pressed grooved roller 20 to the cutters D, consisting of a series of arms 21 mounted on a shaft 23 and carrying helically-placed blades 24, Fig. 3, that are held between the parts 21, 22 of the arms. The blades 24 coact with a blade 31 mounted on a pivoted arm 28 so positioned that the force between the blades tends to press the blade 31 against the revolving cutter. Projections 27 position the blade 31 to the radius of the blade 24. The blades may be corrugated. The cut straw passes down a shoot 32 to the elevator fan 34, to which also the cavings from the sieve 35 are guided by oblique bars 36. The grain &c. passing through a sieve 35 is conducted by a tray 39 and a plate 41 near the exhaust inlet of the fan 38, the current of air being regulated by a valve 71 and by an automatic flap-valve 70 that closes under the action of a spring if the suction diminishes, in order to maintain the intensity of the air current. The material is deposited by the air current in compartments 43 - - 47, the walls of which can be raised and lowered, or inclined so that the compartments receive respectively substances heavier than grain, three grades of grain, and substances lighter than grain but too heavy to be ejected by the fan 38. The foreign bodies are delivered sidewise from the machine and the grain falls on to an elevator G having three channels 50 - - 52, one for each grade and having a rack-like bottom 55. The elevator receives a reciprocating motion, being attached to the sieve 35, or mounted on inclined sides or on arms 68, 56, the latter, pivoted at 57, carrying also the sieve 35 and being connected by shockabsorbing springs 60, 61. The speed of elevation is regulated by adjusting the pivot 57. The elevator delivers the grain upon sieves 64 that retain large impurities and deliver them laterally by means of a bar 66 and outlet 67. Small impurities pass through the lower sieves 65 that deliver the grain to sacks.
Patent GB-763603-A (GB)
Title: Improvements relating to telescopic struts such as pit props
IPC: E21D15/44
Filed: 1953-09-01
Abstract: 763,603. Pit props. ONIONS, J. H. Oct. 25, 1954 [Sept. 1, 1953], No. 24113/53. Class 20(2) In a telescopic strut such as a pit prop comprising a closed hollow plunger 17, Fig. 1, slidable in a cylinder 12, air pumped through an inlet 40 into the upper portion 45 of the plunger 17 forces hydraulic liquid from the lower portion 46 of the plunger 17 past a one-way spring pressed ball valve 29 into a chamber 47 in the cylinder 12, thereby extending the prop, and a manually operable external lever 38 is provided by which an axial rod 33 can be moved against spring pressure to move the valve 29 from its seat permitting release of liquid from the chamber 47 to contract the prop. The upper part 45 of the plunger 17 into which the compressed air is introduced and the chamber 46 which contains the liquid are separated by a floating piston 41. A spring loaded safety valve 30 is provided to allow liquid to return from the chamber 47 into the chamber 46 when the load on the prop reaches a predetermined safe limit. In a modification, Fig. 2, a plate 52 secured across the cylinder 12 betwen the ram and the base plate 11a, contains a one-way valve 55 which allows liquid from chamber 47 to flow into a chamber 59 when sinking of the roof causes increasing endwise pressure on the prop. The liquid entering the chamber 59 displaces a floating piston 57 which defines on its other side a chamber 60 containing a charge of compressed air, which is initially admitted through an air valve 51 at a pressure of 200 to 350 pounds per square inch, and which is further compressed as the piston 57 is moved by liquid entering the chamber .59. The high pressure thus accumulated in the chamber 60 can be subsequently used to pre-load the prop by opening the valve 55 by a rotatable cam 56 after the prop has been initially extended by pumping air in through the inlet 40. In a further modification, Fig. 3 (not shown) an additional valve is provided in the plunger 17 which is adapted to be closed, as by contact with , a resilient abutment when the plunger 17 approaches within a predetermined distance from the base of the strut, to prevent further passage of liquid from the chamber 47 into the chamber 46, thus limiting the inward stroke of the plunger. The additional valve is arranged to be manually released at the same time as the valve 29 in order to completely retract the prop for removal. The base 11 and head 21 are secured to the prop by bolts the removal of which permits disassembly of the whole prop for maintenance work.
Patent GB-1283185-A (GB)
Title: Manufacture of levulinic acid
Inventor: OTSUKA MASATOMI
IPC: C07C51/00
Filed: 1971-04-19
Abstract: 1283185 Levulinic acid OTSUKA KAGAKU YAKUHIN KK 19 April 1971 [18 March 1970] 24123/71 Heading C2C In the preparation of levulinic acid by the ring-cleavage of furfuryl alcohol in water with hydrochloric or oxalic acids, the reaction is carried out in the presence of a water-soluble aliphatic ketone in an amount of at least one mole per mole of the furfuryl alcohol. Acetone, methyl ethyl ketone, diethyl ketone, methyl isobutyl ketone and cyclohexanone are mentioned.
Patent GB-1020670-A (GB)
Title: Vulcanisable amorphous olefinic ter-polymers of alpha-olefins and alkenyl-alkyns and process for preparing them
IPC: C08F10/00
Filed: 1964-06-10
Abstract: A vulcanizable amorphous linear terpolymer is obtained by copolymerizing (a) ethylene, (b) a linear or branched a -olefin and (c) an acetylenic compound of formula R-C­C-R1, wherein R1 is a vinyl, alkylvinylidene or arylvinylidene radical and R may be of the same class as R1 or may be hydrogen, or alkyl or aryl radicals.  In the examples, ethylene, propylene and isopropenyl acetylene are copolymerized in n-heptane solution in the presence of a catalyst comprising VCl4 with either H2AlN(CH3)2 or HBrAlN(CH3)2. The catalyst may be prepared in situ or be preformed.  The terpolymers are vulcanized using conventional methods.
Patent GB-532542-A (GB)
Title: Improvements in or relating to anti-priming apparatus for water-tube steam boilers
IPC: F22B37/22
Filed: 1939-08-22
Abstract: 532,542. Preventing priming in steam boilers. DAVEY, PAXMAN & CO., (COLCHESTER), Ltd., and HAZELL, R. L. K. Aug. 22, 1939, No. 24185. [Class 123 (ii)] The riser tubes a of a water-tube boiler open into the steam drum b through extensions c which carry deflecting plates i and which are removably supported in the ends of the risers. Water returns from the steam chamber to the risers through the annular spaces d between the ends of .the risers and the. extension.
Patent GB-242054-A (GB)
Title: Improvements in chain guards for motor cycles
IPC: B62J13/04
Filed: 1924-10-13
Abstract: 242,054. Douglas Motors, Ltd., and Bailey, S. L. Oct. 13, 1924. Chain guards for motor-cycles comprise a casing 2 hinged at 7 to a vertical frame member 5 or other part, so that it can be swung over to enclose the sprocket-wheel 4 and part of the driving-chain 3, or swung outwards as shown to facilitate access to the sprocket-wheel and adjacent parts. The guard is locked in its closed position by means of a wing-nut 8 on a stud adapted to enter fixed jaws 9.
Patent GB-309475-A (GB)
Title: Improved box
IPC: B65D5/18
Filed: 1928-08-23
Abstract: 309,475. Vereinigte Schubfabriken Berneis-Wessels Akt.-Ges. April 11, 1928, [Convention date]. Fancy boxes formed from special blanks; boxes convertible into toys; lids; contents, delivering. -A box Figs. 2 and 4, which when partly opened takes the form of a cage, is formed from cardboard with a lid h hinged to the bottom a of the box and having a long insertion flap k and side wings l; the flap k and wings l are cut to trellis or grating form, and when the lid is turned down in line with the bottom the flap is curved to a quadrant of a cylinder and supported by the curved side wings. The contents of the box, which may be toy animals, shoes, &c., then appear to be within a cage, and such contents may be supported on an inner plate m connected by a tensioned band q with the bottom of the box so that as the lid is opened the plate m. is ejected and completes the opening of the lid and formation of the cage. The box may be formed from a single blank and the side wings l are guided between the double side walls b, g and have pins &c. 3 engaging curved slots 4 in the inner walls b. The flap k may be guided on flaps y or ledges x bent inwards from the side walls b and the cut-out parts k, l may be covered with a transparent skin z. The sides of the box may be printed to correspond with the parts k, l.
Patent GB-1348068-A (GB)
Title: Flameproof composite yarn and fabrics made therefrom
IPC: D04H1/4209
Filed: 1971-04-19
Abstract: 1348068 Yarns N CHIAROTTO 19 April 1971 [17 March 1970 3 July 1970 12 Nov 1970] 24440/71 Heading D1W A flameproof composite yarn comprises a glass or ceramic fibre core covered or sheathed by a blend of at least a natural or artificial proteinaceous fibre with a synthetic fibre, which blend (when thermally decomposed) will form a carbonaceous residue on the core. The natural fibre may be wool or silk or a mixture thereof and the synthetic fibre may be of polyvinyl chloride, polyamide, modacrylic, polyester, polyacrylonitrile or a mixture thereof. In an example the weight ratio of glass: polyvinyl chloride:wool is 5:2:3.
Patent GB-832011-A (GB)
Title: Granular potassium metaphosphate
Inventor: RAISTRICK BERNARD
IPC: C05B13/06
Filed: 1957-08-01
Abstract: <PICT:0832011/III/1> Potassium metaphosphate, (KPO3)n), is prepared by contacting potassium chloride and phosphoric acid at a temperature below the fusion point of the product in the presence of a moving mass of inert particles, whereby the potassium metaphosphate is prepared in granular form.  The reactants may be added separately to the inert particles or may be pre-mixed.  Reaction temperatures are normally between 350 DEG  and 600 DEG  C.  The inert particles may be constituted by potassium metaphosphate itself or by potassium chloride or sulphate.  The phosphoric acid employed may be orthophosphoric, pyro-phosphoric or phosphoric acid having an enhanced P2O5 content due to the addition of phosphorus pentoxide. If it is desired to increase the K2O : P2O5 ratio, sulphuric acid may be added to the phosphoric acid but normally the ratio will be unity. Hydrochloric acid is evolved during the reaction and may be recovered.  As shown in the Figure, a slurry of phosphoric acid and potassium sulphate is added through a line 2 to a reactor 1 which contains hot recycled material at a temperature of 500 DEG  C. entering through line 3.  The material leaves the kiln at 200 DEG  C. in a freeflowing condition and is passed to a heated rotary kiln 5 where the temperature is raised again to 500 DEG  C.  Hydrochloric acid is withdrawn through lines 12 and 13.  A portion of the material leaving the kiln is recycled to line 3 but the major portion passes to a cooler 6 from which it is passed to a screen 8 which separates the products, fines and oversize.  The desired quantity is recycled through line 11 and recycle heater 4 back to the feed shoot 3.  In order to produce a relatively pure hydrochloric acid the phosphoric acid employed may be defluorinated by adding part of the potassium chloride to the acid, thereby precipitating potassium silicofluoride which is removed by filtration, and thereafter reacting the purified acid with further potassium chloride.ALSO:Granular potassium metaphosphate, (KPO3)n is prepared by contacting potassium chloride and phosphoric acid at a temperature below the fusion point of the product in the presence of a moving mass of inert particles, which may be potassium chloride, sulphate or metaphosphate.  The reactants may be added separately to the inert particles or may be pre-mixed. Reaction temperature are normally between 350 and 600 DEG C.  The phosphoric acid employed may be orthophosphoric, pyro-phosphoric or phosphoric acid having an enhanced P2O5 content due to the addition of phosphorus pentoxide.  If it is desired to increase the K2O: P2O5 ratio, sulphuric acid may be added to the phosphoric acid but normally the ratio will be unity.
Patent GB-445237-A (GB)
Title: Improvements in or relating to hydraulic lifting apparatus for chairs, tables and the like
IPC: A61G15/02
Filed: 1935-09-03
Abstract: 445,237. Hydraulic jacks. JORDAN, A. T., and LEVER, P., 2, Mount Pleasant, Gray's Inn Road, London. Sept. 3, 1935, No. 24516. [Class 78 (iii)] [See also Groups XXIX and XIV] Hydraulic apparatus for lifting chairs, tables, &c. comprises a pedal-operated pump 4, Fig. 1, a ram 18, and a byepass valve 35 opened when the ram is at the top of its stroke by means of a member 36 connected by rods 38 to a plate 39 on the top of the cylinder 17, which is moved by the ram collar 40. A spring 22 forms a shock-absorbing connection between the ram and the chair &c. support 23, and a spring 20 absorbs shock when the ram is lowered, consequent on the opening of an exhaust valve 29 by a pedal 32, link 34, and spring lever 31. The degree of opening of the exhaust valve may be varied by adjusting a member 41. The support 23 has a keyway engaged by a key 26 carried by a housing 27 which may be turned about its axis and clamped in adjusted position. The clamping means is constituted by a pin 43, Fig. 3 carried by a lever 45 mounted on an adjustable fulcrum 46, and having a hole through which passes a bolt 47, pivoted to the boss of a pedal 48. The pedal boss has knife edges, engaging V-seatings, and when the pedal is moved into the full line position, the base 1 is gripped between the rim 44 of the housing 27 and the pin 43. In modifications, the pedal boss is eccentric, Fig. 4, or is square with a corner rounded off as shown in Fig. 5, to form a cam.
Patent GB-441294-A (GB)
Title: Improvements in or relating to the binding of books
IPC: B42C9/02
Filed: 1934-08-25
Abstract: 441,294. Bookbinding. KITCAT, A. J., 14, Shand Street, Tooley Street, London. Aug. 25, 1934, No. 24555. [Class 16] A book 1 is provided with a lining 2 of flexible material such as calico which is secured by adhesive to the back of the book prior to the Founding and backing operations, and which has a series of creases or pleats 3 formed therein over the whole or a portion of its area, these creases being automatically flattened out during the subsequent rounding and backing operations to allow the book to spread without risk of splitting the lining. The apparatus for creasing the lining may comprise two plates formed with interengaging projections and grooves between which the lining is drawn. The projections are arranged in echelon formation so that the creases are formed gradually on the movement of the lining between the plates. Instead of two plates the lining may be creased by two rollers having projections and grooves thereon. In an arrangement for creasing, glueing, and applying the lining to the backs of a series of books, the lining is .fed from a roll to two creasing-plates, then into contact with a glueing-roller which is grooved circumferentially to correspond with the creases in the lining, then into contact with the backs of the books already coated with glue and which are fed along by a moving platform or conveyer. The lining is severed by a knife between the books. A grooved wiper or roller may co-operate with the glueing-roller.
Patent GB-373878-A (GB)
Title: Improvements in or relating to weft winding machines comprising a riser mechanism
IPC: B65H54/14
Filed: 1931-09-01
Abstract: 373,878. Apparatus for winding yarns on spools. BRUGGER & CO. TEXTILMASCHINENFABRIK, Horgen, Switzerland. Sept. 1, 1931, No. 24562. Convention date, Sept. 4, 1930. [Class 120 (ii).] In a weft-winding machine provided with a reciprocated thread-guiding spindle, a spool carrier is mounted between an axially movable winding spindle and a counter member, the spindle, which forms one portion of an interengaging clutch, being axially displaceable to connect it with a driving member forming the other clutch portion. A spool holder 7 is operatively connected to a winding spindle 2 which is axially displaceable in a casing 1. A driving disc 3 forming part of the spindle is thrust away from a driving member 4 by a spring 5, Fig. 5, in the latter but is adapted to be engaged therewith when a resilient counter member 10, which supports the other end of the spool holder 7, is displaced to the left by a control lever 15 having a toothed sector 14 engaging a rack on the counter member 10. The counter member 10 slides in a casing 13 mounted on a frame bar 21 supported by the casing 1. The lever 15 is locked in its operative position by a stud 16, Fig. 6, thereon engaging a recess 18<1> in an aperture 18 in a plate 17 pivoted at 19 to the casing 13 and is released to allow the spring 5 to disconnect the drive when either the yarn breaks, the tension is excessive or the spool attains a predetermined diameter. A thread guide 26 mounted on a disc 23 rotatable on the casing 13 is maintained in the position shown in Fig. 1 by the yarn passing to a guide stirrup 29. Excessive tension in the yarn rocks the thread-guide 26 to the left and a pin 24 on the disc 23 engages the apertured plate 17 to raise it and free the lever 15. If the yarn breaks, known spring means rotate the guide to the right and a stud 25 on the disc 23 raises the plate 17. When the spool has attained a sufficient diameter, an adjustable stop on the thread stirrup 29 engages a lug 33 on the plate 17 to raise it and disconnect the drive. The stirrup 29 comprises a feeler wheel 31 by which it is progressively moved along a screwed'rod 30 and the rod 30 is connected by bent arms 39, 40 to one arm of a lever 37, the other arm of which engages a traverse cam 36 driven from the winding spindle 2 and formed with differently inclined cam portions to increase the binding-effect between different windings. To enable spools of different diameters to be wound, the adjustable stop on the stirrup 29, the bent arm 40 and the mountings of the screwed rod 30 are adjustable towards and away from the winding spindle 2.
Patent GB-936429-A (GB)
Title: A new or improved sledge for use with agricultural and other machines
Inventor: PEET GRAHAM FREDERICK JOHN
IPC: A01D85/00
Filed: 1961-07-07
Abstract: 936,429. Agricultural sledge. M. B. WILD & CO. Ltd. July 3, 1962 [July 7, 1961], No. 24607/61. Class 94(1). A sledge for towing behind an agricultural machine comprises catch means which pivots relative to the sledge between a position in which the catch means retains an article supporting surface such as a pallet behind or upon the sledge and a position which disconnects the article supporting surface from the sledge. Figs. 3, 4 show a pallet 17 supported by a secondary platform comprising arms 21. Arms 21 are connected by links 22 to ground engaging arms 20, which extend rearwardly from a sledge platform 10. Springs 23 tend to urge the secondary platform to its raised position, when pallet 17 is held clear of the ground, and a catch means comprising hooks 15 and pivoted members 14 engages the secondary platform to retain it. A bar 18 retains the pivoted members 14 as shown in Fig. 3, until it is moved longitudinally by a pivoted lever 19, to bring notches in bar 18 into line with the upper parts of members 14. Members 14 are thus released so that the secondary platform drops under gravity leaving the pallet on the ground while the sledge and platform are dragged away. In another embodiment, Figs. 1, 2 (not shown), a pallet is dragged behind a sledge until connection between them, by similar catch means to that described above, is broken. A third embodiment, Figs. 5, 6 (not shown) comprises a pallet supported on rollers mounted in channel shaped arms extending rearwards from the sledge. The pallet is engaged by hooks which are pivoted to release the pallet, which is then pushed off the ends of the supporting arms. All embodiments may incorporate a rack for carrying empty pallets.
Patent GB-660593-A (GB)
Title: Improvements in or relating to methods of making aquasols and organo-aquasols
IPC: C01B33/148
Filed: 1948-09-21
Abstract: Stable aquasols of inorganic oxides, e.g. silica, are prepared by mixing an organoaquasol of the oxide having a pH of 2 to 4 with a dilute solution containing an alkaline compound, e.g. sodium, potassium, lithium or caesium hydroxides or quaternary ammonium bases, and having a pH of 9 or higher, to raise the pH of the sol to above 8 and then removing the organic diluent by, for example, distillation or stripping with other organic solvents. The acid reacting sol may be added, together with water if desired, to the alkaline solution in a plurality of portions and the organic diluent removed between the additions. Alternatively, a portion of the acid reacting sol may be first added and the remainder added continuously as the organic diluent is simultaneously removed at such a rate as to maintain constant the amount of organic diluent in the mix, the remaining amount of organic diluent being removed after all the sol has been added. An acid reacting organo-aquasol of silica is preferably prepared by reacting an alkali silicate with an inorganic acid to give a silica aquasol of pH 2-4, the aquasol then being mixed with an organic diluent, e.g., methanol, ethanol.  2 propanol, n-propanol, acetone, 2 methyl-2 propanol, monoethyl and monomethyl ethers of ethylene glycol and cooled if desired, to precipitate the inorganic salt which is then removed.  The alkaline reacting aquasols and the intermediate alkaline reacting organo-aquasols may be employed for impregnating paper and textiles. Specifications 649,896 and 654,850 are referred to.
Patent GB-785679-A (GB)
Title: Jet mill
IPC: B02C19/06
Filed: 1956-08-13
Abstract: 785,679. Jet pulverizers. TROST, C. M. Aug. 13, 1956, No. 24694/56. Class 59 A jet pulverizer comprises a grinding housing 1 to which grinding fluid and material to be ground are introduced by means of a conduit 7 terminating in a nozzle 8, an anvil 2 against which the grinding fluid and material impinge, offtake and return openings 15, 31, a substantially semi-circular classifying conduit 19, a reversely-curved conduit 14, 16 connecting the off-take opening 15 with one end of the conduit 19, a return conduit 27 connecting the other end of the conduit 19 with the return opening 31, and a discharge opening 23 in the radially-inner side of the conduit 19. The housing 1 is also provided with a block 11 having a venturi passageway 12. In a modification (Fig. 3, not shown) the anvil is replaced by a conduit terminating in a nozzle. In a further modification (Fig. 5, not shown) the anvil has four faces and is arranged in substantial alignment with the off-take opening, and three further conduits each terminating in a nozzle are provided for directing a jet of grinding fluid and/or material to be ground against each of the anvil faces. Specification 765,257 is referred to.
Patent GB-410661-A (GB)
Title: Apparatus for playing a table game
IPC: A63F7/38
Filed: 1933-09-07
Abstract: 410,661. Table - games apparatus. COLE, L. D., 11, Chestnut Road, West Norwood, London. Sept. 7, 1933, No. 24794. [Class 132 (ii).] A games board is mounted on rockers A, B so that it can be manipulated by the player. The rocker B is larger than the rocker A and the board slopes towards the end A when placed on a flat surface. The player endeavours by rocking the board to cause a ball C to pass into scoring holes or recesses E as the ball rolls down the board. Deflecting members D are provided on the surface of the board.