(under subclass 438) Device wherein a guide element is upwardly spaced from and cooperates with a work table or equivalent work support to prevent movement of the work upwardly off the support.
(1) Note. Such devices are commonly called holddowns. They may be adjusted to accommodate different thicknesses of work, but are not actuated so as to clamp the work and prevent its movement along the work support. See (1) Note under subclass 447, above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
111, and particularly 145, for means to move product of contact with a tool.
447, for yieldable or movable holddown.
452+, for a work clamp associated with a tool station.
