Machine tool
AssigneeThe Gillette Company
InventorLawrence H. Durham
Life of this patent
Estimating the term…
Abstract
A device for performing a plurality of operations on a workpiece has a combination tool holder and a rotatable spindle for retaining the tool holder. The combination tool holder has a central opening at its forward end for receiving a drill bit and a pair of forwardly extending bosses onto which a pair of cutting tools are received. A slot is provided in the tool holder dividing it into a pair of gripping elements receiving the drill bit, the gripping elements being forced together onto the drill bit when the tool holder is mounted in the spindle.
Claims16
A combination tool holder for performing a plurality of operations on a workpiece comprising:
- a substantially cylindrical body having a central opening provided at the forward end thereof and an outer surface having a rearwardly inwardly tapered portion;
- at least one slot formed through said body and intersecting said central opening, said slot extending from the forward end of said body, rearwardly into said tapered portion;
- at least one boss extending forwardly from said body, and
- means for receiving and retaining tool means disposed on said boss.
A device for simultaneously performing a plurality of operations on a workpiece comprising:
- a combination tool holder and a rotatable spindle for retaining said tool holder therein;
- said tool holder comprising a substantially cylindrical body having a central opening provided at the forward end thereof and an outer surface having a rearwardly inwardly tapered portion;
- at least one slot formed through said body and intersecting said central opening, said slot extending from the forward end of said body, rearwardly into said tapered portion;
- a boss extending forwardly from said body, said boss having means for receiving and retaining tool means thereon;
- said rotatable spindle comprising a forwardly facing cavity having a rearwardly inwardly tapered surface for receiving said rearwardly tapered surface of said tool holder body;
- and
- means for forcing said tool holder rearwardly into said cavity with said rotatable spindle and tool holder body rearwardly inwardly tapered surfaces in contact to thereby compress said tool holder body.
Dependencies are inferred from the claim text.