Plastic article or earthenware shaping or treating: apparatus – Hand movable – substrate traversing – plural dimension shaping...
Patent
1980-09-22
1983-02-01
Anderson, Philip
Plastic article or earthenware shaping or treating: apparatus
Hand movable, substrate traversing, plural dimension shaping...
280 12R, 404118, B28B 129, E01C 1922
Patent
active
043713300
ABSTRACT:
An adjustable screed bar for leveling wet fluid concrete mixtures such as layers of lightweight thermal-insulating concretes cast on rooftops of buildings and the like is described. The device is in the form of a shaft having a screed bar bracket means slidably mounted on one end thereof and a sled runner at the other end. At least two of these devices are attached to a screed bar at spaced apart locations and permit the bar to be pulled or pushed through the wet mixtures at any desired height.
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Advertisement Entitled "Increase Productivity Decrease Costs" from the trade magazine The Roofing Spec., Sep., 1980.
Anderson Philip
Baker William L.
Parker C. Edward
W. R. Grace & Co.
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