US225438A - Nail-plate feeder - Google Patents

Description

2 Sheets-Sheet 2x A. TRUMBOUR. Nail-Plate Feeder.

N0. 225,438, Patented Mar.Y 9, 1880.

Jaffe@ www? www a v UNITED STATES PATENT OFFICE.

ADAM TRUMBOUR, OF HARRISBURG, PENNSYLVANIA.

NAIL-PLATE FEEDER.

SPECIFICATION forming' part Iof Letters Patent No. 225,438, dated March 9, 1880.

Application filed November 26, 1879.

To all whom it may concern Be it known that I, ADAM TRUI/IBOUR, of Harrisburg, Pennsylvania, have invented a new and Improved N ail-Plate Feeder, of Which the following is a clear, full, and exact description, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is a perspective view of a nail-feeder with my improvements attached. Fig. 2 is a side elevation of the same. Fig. 3 is a section through y y in Fig. 1.

To enable others skilled in the art to make and use my invention, I will proceed to describe the exact manner in which I have carried it out.

I being turned.

In feeders as now constructed the nose-piece bears hard on the bed-knife while turning over, which necessitates the use of oil or grease to overcome the tendency to chafe or grind away. Moreover, at each turn of the nose-piece it drops suddenly upon the bed-knife and causes a jar, which is very injurious to the effective working of the feeder.

The object of my invention is to overcome these several difliculties by raising the nosepiece at every turn, so as to clear it of the bedknife, and lowering it again gradually and smoothly, so as to avoid any grinding or jarring.

III the drawings, A represents the base of the feeder, on which are secured the upright posts B B. These posts sustain the cross-beam C, on which rests the bed-knifeD. To the crossbeam C is also secured the platform E, to support a portion of the operative mechanism, as shown in Figs. 1 and 2.

On the outer end of the platform is the stud F, formed at the top for holding the outer end ofthe barrel G, the opposite end of the barrel having attached to it the nose-piece H, resting on the bed-knife D, and being held in poV sition by the sprin g-clutch I, as shown in Fig. 1.

Beneath the barrel G is secured the bellcrank lever J, pivoted to the post J and operated by a pitman extending to the crankshaft K.

On one end or arm of the lever is secured the bow L, diagonal to the arm of the lever. To this bow is attached a string or strap, M, passing around the barrel Gr, as shown in Fig. l, and drawn sufciently taut to cause the barrel to revolve by the reciprocating movement of the arm of the lever.

Immediately underneath the inner end ot' the lever J, I secure a double-faced cam, a, which, by the movement of lever, is caused to pass over and press down the block N, which operates the lever O, pivoted at l?.

. It is evident that when the block N is depressed by the cam a the lever O will raise the post Q, and with it raise the end ofthe barrel carrying the nose-piece, and this at each motion of the lever J or at each turn ofthe nosepiece.

The post Q is made hollow to admit the adjusting-bar q, by which the pressure under the nose-piece is adjusted and the height to which it is to be raised is determined by the operator. I thus secure an automatic means, whereby the nosepiece is raised and lowered to avoid grind` ing and jarring on the bed-knife.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The barrel G, provided with the nose-piece H, in combination with levers J and O, cam a, block N, and post Q, substantially as and for the purpose set forth.

ADAM TRUMBOUR.

Witnesses OLIVER A.4 MACDONALD, LEVI PoULToN.

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