公开(公告)号：GB190811566A

公开(公告)日：1909-05-13

申请号：GB190811566D

申请日：1908-05-28

Applicant: STEWART WILLIAM JOHN

Inventor： STEWART WILLIAM JOHN

Abstract: 11,566. Stewart, W. J May 28. Piles.-In a hollow reinforced-concrete pile, the longitudinal bars 2 are most numerous at the base and decrease towards the top. The pitch of the spiral binding-wire 3 is smallest near the base and increases towards the top. The longitudinals at their lower ends are bent around a ring 7.

公开(公告)号：GB190709891A

公开(公告)日：1908-02-27

申请号：GB190709891D

申请日：1907-04-29

Applicant: STEWART WILLIAM JOHN

Inventor： STEWART WILLIAM JOHN

Abstract: 9891. Stewart, W. J. April 29. Excavating; piles. -Relates to means for retaining the excavated material within the inner tube described in Specification No. 14,647, A.D. 1906, in excavating for concrete and other piles, well sinking, and similar work. The lower end of the inner tube 1, Fig. 1, is provided with one or more cross-bars or plates 2 passing across the bottom of the tube and formed with a knifeedge below and a broader part above to support the excavated material. In some cases parallel or more or less tapered bars may be employed. The bar is preferably provided with lugs 6, Fig. 3, which are passed through openings in a ring 5, Fig. 1, and held in a space 8 between rings 4, 5 secured within the tube 1. Portable and interchangeable ends having a variety of arrangements of cross-bars, such, for example, as is shown in Fig. 6, may be provided for use with different kinds of soil. In forming concrete piles or the like, after withdrawal of the inner tube 1, a plain tube may be inserted having an inner diameter equal to that of the shoulders 12 of the outer tube 13. The concrete being filled into the plain tube, this tube and the outer tube may be afterwards withdrawn ; or the concrete may be filled into the outer tube, which is then withdrawn, leaving the shoe in the ground.

公开(公告)号：US872093A

公开(公告)日：1907-11-26

申请号：US1907380761

申请日：1907-06-25

Applicant: STEWART WILLIAM JOHN

Inventor： STEWART WILLIAM JOHN

CPC classification number: E21B25/02

公开(公告)号：US990308A

公开(公告)日：1911-04-25

申请号：US1910564307

申请日：1910-05-31

Applicant: STEWART WILLIAM JOHN ,  MCKINNON JOHN DANIEL

Inventor： STEWART WILLIAM JOHN ,  MCKINNON JOHN DANIEL

CPC classification number: F16C19/30

公开(公告)号：US985640A

公开(公告)日：1911-02-28

申请号：US1909480947

申请日：1909-03-02

Applicant: STEWART WILLIAM JOHN

Inventor： STEWART WILLIAM JOHN

CPC classification number: B63B3/10