Spacer bar and related method for concrete pipe manufacture

Details Spacer bar and related method for concrete pipe manufacture Spacer bar and related method for concrete pipe manufacture

1979-07-11

1981-10-20

Bell, Paul A.

Wireworking

Article making or forming

Forms and frames

140107, 138175, B21F 300

Patent

active

042955017

ABSTRACT:
The specification discloses a method, apparatus and resulting assembly wherein a concrete pipe reinforcing cage assembly is spaced from the walls of a pipe-making form by means of several spacer bars, each comprising a tie rod to which are secured a plurality of links. The spacer bars are inserted into the cage assembly with the links projecting generally radially therefrom and the resulting final assembly is inserted into the pipe form with the ends of the spacer links engaging the pipe form and spacing the cage assembly therefrom.

REFERENCES:
patent: 3440792 (1968-04-01), Schmidgall
patent: 3837370 (1974-09-01), Gates et al.

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