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US 4,224,855 AGranted
Power saw guiding apparatus
OwnerEmile A. Des Rochesinventor
Life of this patent
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OwnerEmile A. Des Rochesinventor
Estimating the term…
Apparatus for guiding a power saw has a guide bar provided with side and end edges. Saw-guiding members near each side edge of the guide bar are parallel to the longitudinal axis of the bar and extend between opposite ends of the bar. There is a longitudinal slot at one end of the bar midway between the saw-guiding members and a cross bar at the opposite end. A clamp may be used to releasably attach the cross bar end of the guide bar to the workpiece while the opposite end is secured by a pivot member entered into the workpiece through the longitudinal slot. The power saw is fitted with a slide connector capable of slidably engaging either one of the saw-guiding members. The arrangement is such that a lengthly workpiece can be cut more than halfway through starting from one end edge whereupon the guide bar can be swung about the pivot to the opposite end edge which allows the cut to be completed with speed and accuracy.
Guiding apparatus for a power saw movable over a workpiece and comprising a guide bar having side and end edges, a saw-guiding member on the guide bar near each side edge, said saw-guiding members being parallel to the longitudinal axis of the guide bar and extending between the end edges, a cross bar near one end edge of the guide bar with said bars arranged to form a T-square, said cross bar having opposite end edges equidistantly spaced from adjacent saw-guiding members, securing means for releasably attaching the guide bar to the workpiece to extend over a surface thereof with the cross bar alongside one edge of said workpiece, a slide connector securable to the power saw for slidingly and matingly engaging a selected one of the saw-guiding members as the power saw is advanced along the surface of the workpiece during a cutting stroke, said guide bar having a longitudinal slot at one end edge, said longitudinal slot being located midway between the saw guiding members, and said securing means including a pivot member enterable through the longitudinal slot into the workpiece whereby the guide bar is swingable about said pivot member to locate the cross bar at an opposite edge of said workpiece.
Guiding apparatus for a power saw movable over a workpiece and comprising a guide bar having side and end edges, a pair of guide rails on the guide bar one near each side edge, said pair of guide rails being parallel to the longitudinal axis of the guide bar and extending between the end edges, said guide bar having a longitudinal slot extending into one end edge, said longitudinal slot being located midway between the pair of guide rails, a cross bar secured to the underside of the guide bar spaced from the other of said end edges, said cross bar having opposite end edges equidistantly spaced from the longitudinal axis of the guide bar, securing means for releasably attaching the guide bar to the workpiece to overlie substantially one half of the workpiece with an opposite end edge of the cross bar indexing with a mark on said workpiece indicating a proposed saw cut, said securing means including a pivot member enterable through the longitudinal slot into the workpiece whereby the guide bar is swingable about said pivot member to overlie an opposite half of said workpiece, and a slide connector securable to the saw to slidably engage an adjacent rail of the pair of guide rails as the saw is advanced along the workpiece during a cutting stroke.
Dependencies are inferred from the claim text.