Advance drive means for a pipe snake

Details Advance drive means for a pipe snake Advance drive means for a pipe snake

1979-06-08

1981-05-12

Christian, Leonard D.

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

Comprising rotary pinch pair

2541343FT, B65H 1722, B65H 5110

Patent

active

042667097

ABSTRACT:
A mechanism for displacing a pipe snake comprises a roller set of at least two opposite rollers adapted to roll against the pipe snake and being reversible such that they selectively advance or retract the pipe snake. Also provided is an eccentric drive which periodically imparts to the pipe snake longitudinal hammering movements in a direction opposite that in which the snake is being displaced to facilitate travel of the snake.

REFERENCES:
patent: 3387759 (1968-06-01), Stedman
patent: 3451089 (1969-06-01), Carlson et al.
patent: 3887163 (1975-06-01), Prange

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