Cutting – Rotatable disc tool pair or tool and carrier – With means to support work relative to tool
Patent
1997-08-13
1999-08-03
Jones, Eugenia A.
Cutting
Rotatable disc tool pair or tool and carrier
With means to support work relative to tool
83473, 834861, 8352218, 83581, B23D 4502, B27B 520
Patent
active
059310731
ABSTRACT:
A radial arm saw apparatus is provided with a bevel angle adjustment used in combination with a miter angle adjustment. The saw motor is mounted on a rigid vertical mounting plate. The mounting plate is tiltably supported on a rigid vertical support panel that is connected to the translatory radial arm mechanism so that the motor tilt or bevel angle is adjustable. The connection between the mounting plate and the support panel includes an elongate linkage arm pivotally connected at one end to the mounting plate and at another end to the support panel. A horizontal guide pin fixed to the mounting plate extends through a curvilinear guide slot in the panel to operate in cooperation with the linkage arm to always maintain the bottom horizontal tangent of the saw blade in a common vertical plane regardless of the tilt or bevel angle of the motor. An automatic mechanism for maintaining the tangent at a preset elevation regardless of bevel angle is disclosed. In another embodiment, connection between the mounting plate and the support panel includes two horizontal guide pins that extend through, and cooperate with, circular guide slots to maintain the bottom horizontal tangent of the saw blade in the same position relative to the support panel regardless of the tilt or bevel angle of the motor. One or both pins or slots may be in either the mounting plate or the support panel.
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Blum Alvin S.
Jones Eugenia A.
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