US84527A - Albert b - Google Patents

Description

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ALBERT B@ BEAN, OE NEW HAVEN, CONNECTICUT, AssieNOR TO HIMSELEAND J.' H. BOOTH, OE SAME PLACE. f

' Latas Patent No.' 84,527, dated Decanter 1, ,1868.

.IMPROVEMENT IN REVERSIBLE-RATQHET FEED.

To all whom itk/may concern Be it known that I, ALBERT B. BEAN, of -New Haven, in the county of New Haven, and State of Connecticut, have invented a new Improvement in Reversible-Ratchet Feed; and I do hereby declare the following, when taken in connection with the accompanying drawings, -and the letters of reference marked thereon, to be a full, clear, and exact description of. the same, and which said drawings constitute part of this specicationand represent, in-

Figure l, a front view;

Figure 2, a transverse section; and, in

Figure 3, a front sectional view,

This invention is designed especially as an improvement in t e feed for metal-planers, but is alike applicable to a machines where a similar Vreversible feed is required; and

The inventionv consists in the arrangement of a double-ended pawl, pivoted at or near its centre, and combined with a lever, in which is arranged a cam, bearing upon the head of the double pawl, so that, as the lever is turned in -one direction, one end of the pawl will operate upon the ratchet, and, upon reversing the lever, the pawl will be reversed, so as to operate in the opposite direction.

In order to the clear understanding of my invention,`

I will fully describe the same, as illustratedin the accompanying drawings.

A is the ratchet-wheel, arranged upon a shaft, B, or so as to make a 4connection from the ratchet-wheel to that partef the machinery to be reversed.

(l C are two ends of" a pawl, pivoted at D, so asto turn reely on the said pivot, and permit either end, as the case may be, to fall upon the wheel A.

The pawl is pivoted to a wheel or lever, E, to which -a constant reciprocating motion is imparted,'so that, by such reciprocating motion of the wheel-or lever E, the ratchet will be turned to the right or left, according to which of the two ends of the pawl is working` thereon.

The head F of the pawl extends up above the pivot, as seen in g. 3, and upon the pivot Dis hung a lever, G, within which is arranged a cam, H, resting on the head F of the pawl, the said cam being pressed down- Ward by a spiral spring within the handle, as denoted in -iigs. 2 and 3. Therefore, when in an upright position, as in iig. 3, the cam bearing upon the head of the pawl will hold both ends of the pawl from the ratchet, as denoted in red, Iig. l, or as denoted in g. 3. Turned to the left., as in iig. l, or, asin red, iig. 3, the spring forces the cam down upon the side of the head of the pawl, and thus forces the pawl over to the right, as denoted in red, g. 3, so that the end, C', will operate upon the ratchet, but when the lever is turned to the other side, as denoted in blue, the cam forces the pawl the other way. The other end, C, of the pawl, acting upon the ratchet, reverses the action. Thus, by simply turning the lever from right to left, the' feed is instantly reversed; or, to a perpendicular position, the feed is entirely stopped.

To arrest the lever when in a perpendicular position, I arrange a conical-headed pin, I, in the wheel or lever E, and a corresponding indentation in the lever, so that,

A when the lever is turned to the perpendicular position,

the said pin will fly out into the indentation in the handle, and support it in that position, but yet so that a little force will move` the lever from that position to the iight lor left.

Having fully described my invention,

What I claim as new and useful, anddesire. to secure by Letters Patent, isl The double-,ended pawl,' constructed with the head F, in combination with the lever G, having the cam E arranged therein, so as to operate to reverse the action of the pawl, substantially in the manner herein vset forth. c

. A., B.' BEAN. Witnessesi f J. H; SHUMWAY? A. J. Tranne,

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