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Description: |
| Patented in Canada, patent #CA-14,634.
Abstract:
My invention is an improvement in expanding mandrels for use in manufacture of eccentrics, nuts, bands, and analogous articles. In constructing the mandrel I employ three parts or pieces-to wit, a plain tapered or conical arbor, which is adapted to be held between the centers of a lathe, a short sleeve r5 having lengthwise slots, and a number of segments or dogs, which are tapered on their inner edges to conform to said arbor, and have at each end an integral lug, that serves to confine the dogs in the slotted sleeve while the mandrel is being used. In the accompanying drawings, Figure 1 is a sectional side elevation of the mandrel as fitted for holding an eccentric while being chased.
Claim:
The combination of the plain conical arbor A, adapted to be held between the centers of a lathe, the short sleeve B, having longitudinal slots a, and the dogs C, tapered on their inner edges to conform to the taper of the arbor, and provided with integral end] hugs, b, which extend beneath the sleeve and limit their outward projection. |
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