Woodworking – Special-work machine
Patent
1991-04-01
1992-05-26
Bray, W. Donald
Woodworking
Special-work machine
118410, 118710, 144332, B27C 900, B27G 100
Patent
active
051158442
ABSTRACT:
An apparatus with a percussion head disposed beneath a percussion rod of a percussion mechanism. The bottom surface of the percussion head includes a shallow, open-bottomed chamber which is defined by an axially compliant sealing ring, and is adapted to be filled with glue or plastics material to be injected into joints, hair checks, and knots of wooden boards.
REFERENCES:
patent: 2335528 (1943-11-01), Neils
patent: 2336704 (1943-12-01), Skoog
patent: 2346879 (1944-04-01), Turzillo
patent: 2834050 (1958-05-01), Dymsza et al.
Bray W. Donald
Schotten & Hansen GmbH
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