Brushing – scrubbing – and general cleaning – Implements – Mason's trowel or float
Patent
1980-01-11
1982-06-22
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Implements
Mason's trowel or float
E01C 1944
Patent
active
043354858
ABSTRACT:
This troweling device for finishing wet concrete consists of a long, detachable handle assembly which is attached to a trowel or bull float blade by means of a pitch adjusting mechanism. This pitch adjusting mechanism allows the user to alter the angle of the blade in relation to the handle assembly while the trowel is in use by axially rotating the handle assembly. The pitch adjusting mechanism consists of a worm thread cylinder which is held in engagement to the geared portion of a geared support structure by a pivoting outer housing. This outer housing encloses the worm thread cylinder and pivots upon the geared support structure. The handle assembly is attached to the worm thread cylinder and the blade is attached to the geared support structure. Axial rotation of the handle assembly, therefore, causes the worm thread cylinder to be axially rotated and thereby advance and retreat along the geared support structure, thus changing the angle of the handle assembly in relation to the blade. All parts of the device are easily disassembled to enable the user to administer proper maintainance.
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Lopdrup Kim A.
Paine John N.
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