B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
77/15
B23B 45/00 (2006.01) B23B 49/00 (2006.01)
Patent
CA 1133729
ABSTRACT A depth stop for a drilling tool comprises a rod 12 mounted on the tool body for sliding movement in directions parallel to the drilling movement, and. a locking lever 15 pivotally mounted about a pivot boss 16 at right angles to but offset from the rod. The rod extends through an aperture in the upper part 18 of the lever which aperture provides a clearance for the rod, and a spring 19 urges the lever in a sense to bring an edge or opposite edges of the aperture into frictional engagement with the rod which sense is the same as that in which the rod tends to move when it comes into abutment with a workpiece. The rod can be released by manually swivelling the lever against the spring force. The rod 12 may have a knurled surface 14 so as to provide substantially a mechanical lock with the co-operating edge of the lever.
353511
Fetherstonhaugh & Co.
Kango Electric Hammers Limited
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