Gang saw with horizontally and vertically movable hold-downs
AssigneePIW Industries, Inc.
InventorMark A. Scott
Life of this patent
Estimating the term…
Abstract
A rip saw with multiple saws adjustably positionable along a power-driven arbor. A clamp or hold-down assembly is provided on its upstream side, and on the downstream side, of the arbor and its saws. Each assembly is passable along an inclined path that converges on the path of travel of work through the machine. The assemblies inhibit fluttering in and otherwise stabilize boards as they are being cut by the saws.
Claims8
In a rip saw which includes a frame, a power-driven saw arbor mounted on the frame, and plural saws mounted on said arbor and keyed to the arbor for rotation with the arbor:
- a support for a work-piece being cut disposed on upstream and downstream sides of said arbor for supporting one side of the work-piece with the work-piece being moveable in a travel path in a direction extending from the upstream toward the downstream side of the arbor,
- an upstream clamp structure and a downstream clamp structure for clamping against an opposite side of a work-piece being cut in regions disposed on the upstream and on the downstream side of the arbor, respectively,
- the upstream clamp structure including an elongated upstream slidable pressure shoe structure on the upstream side of the arbor extending generally parallel to the axis of the arbor and across the peripheries of the saws for applying pressure to the work-piece, and
- an inclined-path-producing mounting for the upstream pressure shoe structure supporting the upstream pressure shoe structure for movement in an inclined guide path from an upper first position to a second position lower than and downstream from said first position.
In a rip saw which includes a frame, a power-driven saw arbor mounted on the frame, and plural saws mounted on the arbor, and keyed to the arbor for rotation with the arbor:
- a support for work being cut by the rip saw, disposed on upstream and downstream sides of said arbor, for supporting one side of the work-piece being cut with the work-piece moveable in a direction extending from the upstream toward the downstream side of the arbor and along a travel path,
- an upstream clamp structure and a downstream clamp structure, each for clamping against an opposite side of a work-piece being cut, in regions disposed upstream and downstream, respectively, of the saw arbor,
- each clamp structure extending generally parallel to the axis of the arbor and across the peripheries of the saw, and
- a mounting for each clamp structure whereby the structure is moveable along an inclined path, the mounting for the upstream clamp structure accommodating movement between an upper first position to a second position lower than and downstream from said first position, and the mounting for the downstream clamp structure accommodating movement from an upper first position to a second position lower than and upstream from said first position.
Dependencies are inferred from the claim text.