Hydraulic and earth engineering – Marine structure or fabrication thereof – With work deck vertically adjustable relative to floor
Patent
1989-12-06
1991-10-08
Taylor, Dennis L.
Hydraulic and earth engineering
Marine structure or fabrication thereof
With work deck vertically adjustable relative to floor
405259, 405261, 411379, B21C 3700, E21D 2100
Patent
active
050541463
ABSTRACT:
A method of making an anchor bolt with a thread on a section thereof comprising the steps of providing a metal bar (1) of circular or near circular cross-section having a diameter which is substantially equal to the pitch diameter of the thread to be provided thereon, extruding the bar along a selected section (A) thereof to reduce its cross-section, forming a series of lateral protrusions (3) on the selected section of the bar, straightening the bar, and, forming a thread (5) with the said pitch diameter on a further selected section of the bar.
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Josef Moshe
Wiesenfeld David
Taylor Dennis L.
Videx-Wire Products (Pty.) Limited
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