Concrete vibrator machine

Details Concrete vibrator machine Concrete vibrator machine

1979-10-19

1981-03-17

Byers, Jr., Nile C.

Road structure, process, or apparatus

Apparatus

Means to agitate material

172140, E01C 1938

Patent

active

042564158

ABSTRACT:
A concrete vibrator machine wherein the vibrators thereof are mounted on individual supporting structures that are adjustable longitudinally of the main frame of the machine, and wherein the vibrators are raised and lowered on their individual supporting structures in such a manner that if the vibrators strike an obstruction during lowering thereof, lowering of the vibrators may stop without damaging stress being placed thereon.

REFERENCES:
patent: 2148214 (1939-02-01), Mall
patent: 2248107 (1941-07-01), Mall
patent: 2261659 (1941-11-01), Pierce
patent: 2744456 (1956-05-01), Mittelstadt
patent: 3753621 (1973-08-01), Dale
patent: 4128359 (1978-12-01), Cooper

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