Back to results
US 3,965,231 AGranted
Means and method for defeathering blocks
AssigneeModern Builders Supply Co.
InventorCharles W. Depka
Life of this patent
Estimating the term…
Abstract
Blocks are defeathered by a multiplicity of simultaneous blows from below repeated on a line transversely of the path of travel in conveying dried blocks away from drying racks at a block making machine. The blows are delivered by a series of washers hung on a rod and struck upwardly by a squared, powered shaft rotating therebelow.
Claims13
Means defeathering the lower portions of cement blocks at a defeathering station, comprising:
- a. means supporting and conveying said blocks in a generally horizontal path of travel past said defeathering station,
- b. a series of juxtaposed members and means supporting said juxtaposed members on a line below and extending laterally of said path of travel of said blocks at said defeathering station, said means supporting said juxtaposed members permitting them to move freely generally vertically from a first lower position to a second upper position,
- c. means operative to periodically strike said justaposed members and to thereby propel said juxtaposed members upwardly from said first lower position to said second upper position, said juxtaposed members in moving from said first lower position to said second upper position thereby striking said lower portions of said blocks and thereby knocking feathers from said blocks,
- d. said means supporting said juxtaposed members being a rod disposed transversely of said path of travel of said blocks and disposed therebelow and said juxtaposed members having openings therein in which said rod is positioned and said openings being larger than said rod thereby permitting said juxtaposed members to move from said first lower position to said second upper position,
- e. said rod being of circular cross-section and said juxtaposed members being annular members and said openings being circular so that said annular members can rotate on said rod to permit different surfaces to strike said blocks to distribute wear on said annular members, and means mounting said rod free to rotate, the axis of said rod being stationary.
2 more elements
The process of defeathering the lower portions of cement blocks at a defeathering station, comprising:
- a. bringing said blocks on a path of travel through said defeathering station with their lower surfaces substantially horizontally disposed,
- b. supporting on a rod below said station and lateral of said path a series of washer-like juxtaposed members with central openings larger than said rod whereby said members can be moved vertically relative to said rod, and
- c. at said station striking said juxtaposed members from below causing said members to be propelled upwardly and to strike said lower surfaces from below generally vertically upwardly and spread across a line disposed transversely of said path of travel of said blocks and serially repeating simultaneous multiplicity of blows as the blocks progress on said path of travel, thereby breaking feathers from said blocks.
Dependencies are inferred from the claim text.