Cutting – Rotatable disc tool pair or tool and carrier – With means to support work relative to tool
Patent
1980-06-09
1982-06-15
Yost, Frank T.
Cutting
Rotatable disc tool pair or tool and carrier
With means to support work relative to tool
834771, 83488, 83701, B26D 118, B27B 518
Patent
active
043344500
ABSTRACT:
A saw-carrying carriage consists of a supporting frame movable along horizontal guides, onto which frame there is vertically movably mounted a structure which carries the circular saw and the electric motor for driving it. The vertically movable structure comprises a pair of vertical rods slidable within vertical tubular guides secured to the supporting frame. The top ends of the vertical rods are conically shaped, and the top ends of the vertical tubular guides have downwardly directed hollow conical seats. The bottom ends of the vertical rods of the movable structure are connected to a bar to which are also secured the stems of two piston-and-cylinder units, the cylinders of each unit being secured to the supporting frame of the carriage. In this manner, retraction of the stems inside the cylinders will promote lifting of the movable unit which carries the saw. At the end of the upward stroke of the movable structure, the conical ends of the vertical rods will fit snugly into the hollow conical seats of the tubular guides, thus assuring very stable and accurate positioning of the structure, and of the saw carried thereby, in its working position.
REFERENCES:
patent: 1756287 (1930-04-01), Freshwater et al.
patent: 2365987 (1944-12-01), Zimmerman
patent: 2379271 (1945-06-01), Bechtel
patent: 2800932 (1957-07-01), Scott
patent: 2870802 (1959-01-01), Richards
patent: 3485138 (1969-12-01), Staehle
patent: 4099798 (1978-07-01), Steinmetz
Giben Impianti S.p.A.
Olszewski Robert P.
Yost Frank T.
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