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11. 发明专利

GB432974A Improvements in or relating to the seats and other parts of the valves of internal combustion engines 未知
公开(公告)号：GB432974A
公开(公告)日：1935-08-07
申请号：GB407734
申请日：1934-02-07
申请人： SHEEPBRIDGE STOKES CENTRIFUGAL , JAMES EDGAR HURST
IPC分类号： C22C37/06
摘要： The seats and other parts of the valves of internal-combustion engines are made of cast iron alloyed with 0,5-2 per cent of both aluminium and chromium, together with 2-3 per cent both of carbon and silicon. A preferred composition comprises 2,65 per cent of carbon, 2,5 per cent of silicon, 1,25 per cent of aluminium, and 1,75 per cent of chromium. Manganese, sulphur, and phosphorus may also be present in usual amounts for cast iron. The invention is particularly applicable to poppet valve seats of the type described in Specification 381,361, [Group XXVII].

12. 发明专利

GB304015A Improvements in or relating to centrifugal machines for casting metal pipes and the like 未知
公开(公告)号：GB304015A
公开(公告)日：1929-01-17
申请号：GB24828
申请日：1928-01-04
申请人： CENTRIFUGAL CASTINGS LTD , JAMES EDGAR HURST , EDMUND BRUCE BALL
IPC分类号： B22D13/10
摘要： 304,015. Centrifugal Castings, Ltd., Hurst, J. E., and BaU, E. B. Jan. 4, 1928. Castings, extracting; moulding machines.-A device for inserting and removing the socket-cores of centrifugal pipemoulds, of the kind in which the core support E can be turned about a horizontal axis and moved longitudinally to and from the mould C, is provided with a detachable ring F to which the core ring is locked. The ring F is clamped to the core support or table E by cam jaws G, Fig. 5, and is flush with the loading bench from which a core H on its ring H is transferred. The rings H, F have lugs H , F which can be engaged like a bayonet socket. The truck A, Figs. 1 and 3, carrying the table is then moved adjacent the mould, the table is turned to bring the core into axial alignment with the mould by wheel E', pinion E and sector E , and advanced to insert the core by a slide D and handle D . The core and ring F are then secured to the mould by wedges and detached from the table by operating the jaws G. After casting, the core ring H is removed by the reverse process and the whole operation is then repeated. To allow a number of devices to be used in succession the rails may form a circular track or a branch.

13. 发明专利

GB285721A Improvements in or relating to the production of cast iron castings by the centrifugal process 未知
公开(公告)号：GB285721A
公开(公告)日：1928-02-23
申请号：GB1881427
申请日：1927-07-15
申请人： NEWTON CHAMBERS & CO , JAMES EDGAR HURST
IPC分类号： B22D13/00
摘要： 285,721. Newton, Chambers, & Co., Ltd., and Hurst J. E. July 15, 1927. Casting processes; casting-machines. - Castiron cylindrical castings, such as cylinder liners for internal-combustion engines and piston valve liners for locomotives, are made by the centrifugal process, the silicon content of the metal being adjusted and the casting being rapidly cooled from a temperature almost immediately below its solidification point by means of an air blast, moistened or otherwise, applied to the inner surface, so as to obtain a sorbitic structure in order to render the article more resistant to wear, impact and volume changes on heating and to increase its tensile strength. The blast mav be cut off when the desired structure is obtained or may be continued until the casting is cool. The proportion of silicon is kept low so as to aid in obtaining this structure and is dependent on the average thickness of the casting and on the thermal conductivity and temperature of the mould material. When making a casting from a quarter of an inch to three inches in thickness in a rotating metal mould, the percentage of silicon varies from 2.25 to 1.25, and for casting in a sand or loam mould from 1.5 to 0.5. In casting a cylinder of one inch thickness in a rotating sand or like mould 1 to 1.25 per cent of silicon is used, an air blast of from 20 to 60 pounds pressure is introduced through a valvecontrolled nozzle until the casting has cooled from the solidification point to between 700‹ C and 760‹ C. For thicker castings and for castings containing more silicon or produced in hot metal moulds, the air blast may be moistened with water or oil, such as a light mineral oil, e.g., by using an injector nozzle, so as to effect a quicker cooling.

14. 发明专利

GB154062A Improvements in or relating to moulds for centrifugal casting machines 未知
公开(公告)号：GB154062A
公开(公告)日：1920-11-25
申请号：GB2854419
申请日：1919-11-18
申请人： JAMES EDGAR HURST , FRANCIS WILLIAM STOKES
IPC分类号： B22D13/00
摘要： 154,062. Hurst, J. E., and Stokes, F. W. Nov. 18, 1919. Drawings to Specification. Casting-machines; moulds.-The inner surface of the mould of a centrifugal casting-machine is maintained at 600 to 700‹ C. The mould may be originally heated by electricity or gas or by making a number of castings which are scrapped; by adjusting the thickness of the mould and rate of casting, this temperature may be maintained. For an iron casting 5 to 10 millimeters thick and weighing about 15 lb., a cast iron mould should be 2¢ to 3 inches thick and the castings produced at 40 to 60 per hour. If a liner is used, it should be in intimate contact with the body of the mould.

15. 发明专利

GB571442A Improvements in or relating to the manufacture of iron powder 未知
公开(公告)号：GB571442A
公开(公告)日：1945-08-24
申请号：GB1812342
申请日：1942-12-21
申请人： JAMES EDGAR HURST , BRADLEY AND FOSTER LTD , BIRMINGHAM ELECTR FURNACES LTD , PETER FRANCIS HANCOCK
IPC分类号： B22F9/20
摘要： 571,442. Decarburizing iron. HURST, J. E., BRADLEY & FOSTER, Ltd., BIRMINGHAM ELECTRIC FURNACES, Ltd., and HANCOCK, P. F. Dec. 21, 1942, Nos. 18123/42 and 1434/43. [Class 72] Iron powder is produced by heating an intimate mixture of cast iron in tinely-divided form and iron oxide at a temperature of 750- 1100‹ C., the time of the treatment and the proportions of the ingredients of the mixture being such that the carbon content of the iron is reduced to a very low value and substantially the whole of the oxide is reduced to metallic iron. The reaction and the subsequent cooling of the product may be carried out in a controlled neutral or slightly reducing atmosphere or atmospheric air may be excluded during these processes. Specification 484,662 is referred to.

16. 发明专利

GB425683A Improvements in or relating to pistons for internal combustion engines, pumps and the like 未知
公开(公告)号：GB425683A
公开(公告)日：1935-03-18
申请号：GB2570933
申请日：1933-09-16
申请人： SHEEPBRIDGE STOKES CENTRIFUGAL , JAMES EDGAR HURST
IPC分类号： F16J9/22
摘要： 425,683. Pistons. SHEEPBRIDGE STOKES CENTRIFUGAL CASTINGS CO., Ltd., and HURST, J. E., Sheepbridge Works, Chesterfield, Derbyshire. Sept. 16, 1933, No. 25709. [Class 122 (i)] A renewable wearing lining 3 for a ring groove is held in positior therein by an interference fit witl the sides thereof. The lining may be in the form of a split or seg mental ring having interengaging portions at the joints and may b( of austenitic cast iron or steel &c. preferably nitrogen hardened and having a coefficient of expansion corresponding to that of the aluminium alloy of the piston.

17. 发明专利

GB359423A Improvements in the production of alloy steel castings 未知
公开(公告)号：GB359423A
公开(公告)日：1931-10-12
申请号：GB1780430
申请日：1930-06-10
申请人： SHEEPBRIDGE STOKES CENTRIFUGAL , JAMES EDGAR HURST
IPC分类号： C22C38/22 , C23C8/02
摘要： Alloy steels containing manganese, chromium, nickel, cobalt, vanadium, molybdenum, tungsten and zirconium are cast centrifugally and then nitrogenized by being heated to 480-580 DEG C. in a stream of anhydrous ammonia gas. Before being nitrogenized, the casting may be quenched in oil at 820-920 DEG C. and then tempered at 300-700 DEG C. A steel containing 0,15-0,65 per cent of carbon, 0,1-0,4 of silicon, 0,4-0,75 of manganese, 1,0-1,5 of aluminium, 0,9-1,75 of chromium, and 0,1-0,75 of molybdenum is referred to. Specifications 174,580, 243,613, and 272,182, [all in Class 82 (i), Metals, Extracting &c.], are referred to.

18. 发明专利

GB302821A Improvements in or relating to apparatus for extracting pipes and like cylindrical articles from the moulds in which they are cast 未知
公开(公告)号：GB302821A
公开(公告)日：1928-12-27
申请号：GB156428
申请日：1928-01-17
申请人： CENTRIFUGAL CASTINGS LTD , JAMES EDGAR HURST , EDMUND BRUCE BALL
IPC分类号： B22D13/10
摘要： 302,821. Centrifugal Castings, Ltd., Hurst, J. E., and Ball, E. B. Jan. 17, 1928. Castings, extracting.-A device for extracting a pipe or the like from a centrifugal or other mould has expansible grippers F adapted to be moved relative to a framework A which runs on overhead rails C. The grippers are carried by levers F' pivoted to a rod B on which is screwed a hand-operated nut E which moves a sleeve E to expand the grippers. A second nut B is then operated to move the grippers relative to the framework A and thus extract the tube as shown. A pivoted support H is then raised, as shown, to engage the tube by a lever K and toggle K and the whole is moved on the rails C to supports L, Fig. 4, which are raised by a toggle M operated by a lever N. The toggle M is connected to the support L through a pivoted detent O having limited movement so that the toggle lifts the detent to hold the pipe G until the extracting device has been removed. The lever N is then moved further, Fig. 6, so that a stop M on the toggle withdraws the detent and the pipe G rolls on to a platform, conveyer, truck, &c. P.

19. 发明专利

GB170677A Improvements relating to coatings or linings for moulds, cores and the like 未知
公开(公告)号：GB170677A
公开(公告)日：1921-10-28
申请号：GB2240920
申请日：1920-07-28
申请人： JAMES EDGAR HURST
IPC分类号： B22C3/00 , B22D13/10
摘要： 170,677. Hurst, J. E. July 28, 1920. Mould materials.-Metal moulds used in centrifugal casting machines are prepared for use by applying to the rapidly rotating mould a powdered substance or mixture that melts to form a thin viscous flexible skin or film on the surface of the mould at a temperature somewhat below the casting temperature. The film has a comparatively low thermal conductivity. One or more of the following salts mav be used: a chloride, nitrate, silicate, aluminate, fluoride, borate, sulphate, or carbonate, with or without metallic oxides as lead oxide, or boric acid may be employed. The melting-point of the material should be between 650 and 850‹ C. for use in connection with cast iron.

20. 发明专利

GB157609A Improvements in centrifugal casting machines 未知
公开(公告)号：GB157609A
公开(公告)日：1921-01-27
申请号：GB2848419
申请日：1919-11-17
申请人： FRANCIS WILLIAM STOKES , JAMES EDGAR HURST
IPC分类号： B22D13/10
摘要： 157,609. Stokes, F. W., and Hurst, J. E. Nov. 17, 1919. Casting-machines.-In a centrifugal casting- mschine, conduction of heat from the mould b to the face-plate a is reduced by separating the members a, b by lugs h on the mould or by a perforated extension f.

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