US79766A - Improvement in eie-peoteotoe oe-chip-aeeestee foe lathes - Google Patents

Description

stent tica Letters Patent No. 79,766, dated July 7, 1868.

IMPROVEMENT IIT EYE-PROTECTOR. 0R CHIP-ARRESTER FOR LATHES.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, CHARLES T. LAMIIER'E, of-Grcenield, in the county of Franklin', and State of Massachusetts, have invented certain new and useful Improvements in Chip-Arrestcrs for Turning-Lathes; and I do hereby declare that the following isa full, clear, and exact. description thereof', reference being had to the accompanying drawings,'rmaking part of this specification, and to the letters of reference marked therieQ, like letters indicating like parts wherever they occur.

To enable others skilled in the art te construct and use my invention, I willl proceed to describe it.

My-invcntion relates to a certain new and improved device, which I term' a chip-arrester, to be attached to turning-lathes, to prevent the chips ot the material being turned `from tiying into the face or eyes ot' the operator.

In the drawings my chip-arrester is shown in perspective attached to the slide-rest of a lathe.

The arrester consists of a glass, D, attached to a clamp, C, by means of a series of bars, a a, as'shown in the drawing, so that the glass may be turned or placed'in any relative position to the clamp C.

This glass, D, is secured within a metal frame, F, whiehframe' is so attached, either by a wrist, e, as in the drawing, by a pivot as are the bars, or by a ball-and-socket joint, to the bar or bars a, as to turn freely in any direction, said bars being pivoted to each other so as to form a exible arm, which is pivoted to the upper side ofthe elampC', at the end opposite that to which the glass is attached.

When in use, the clamp is secured to the cutting-tool, on either side of' the tool-post, and' the glass swung around over the point of thecutter, so that any chips cut from' the metal, whichl may ily upwards, will strike against the under side of the glass and fallback upon the lathe.

The glass being transparent, the operation. of the tool may be observed more closely than by the naked eye, as the head may be brought much nearer the tool than would otherwise be safe.

Instead of glass, mica may be used, and in slome instances it may be preferable, as itis not liable to break, and the glass may be flat, or concave on the under side, so as to guard against the chips glancing otl` to one side.

For very fine work a. lens may be used, instead of the ordinary glass, so as to more closely examine the tool and its operation. l

It isA obvious that instead of a thumb-screw toattach the clamp, a wedge or Cain may be used, or the clamp may be dispensed with, and springs so attached :as to springover or straddle the tool, and thus hold thc arrester in position. Y Y

It is also -obvious that instead of the support for the' glass 4being of jointed bars it may be made of one piece of wire, and may be attached to the tool-post instead of the tool, these changes being, however, unimportant. i I

VThe apparatus, as above described, more especially adapted for metal-turning, but with very slight inediications may be used for wood. The glass in that case would be made longer one way than the other, and secured to the rest, as it would not be convenient to attach it to a hand-tool. i

Thearres'ser may also be used on Viron planers, the only difference being in its attachment to a vertical instead oi' a horizontal tool.

Having thus described my invention, what I` claim, is

An apparatus, constructed and arranged for use, substantially as described, for protecting the eyes from chips or metal shavings and similar substances.

CHARLES T. vLAMPHERE.

Witnesses: v I

ALMON BnAiNAnD, Ln'rnnnG. PRATT.

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