US355584A - Thirds to peter altmeter and christian altmeyer - Google Patents

Description

(No Model.)

J. M. BRYANT.

NAIL PLATE EEEDE'E.

No. 355,584. l Patented Jan. 4, 1887.

UNITED STATES PATENT I JAMES M. BRYANT, OF BENWOOD, "WEST VIRGINIA, ASSIGNOR OE TWO- THIRDS 'TO PETER ALTMEYER AND CHRISTIAN ALTMEYER, BOTH SAME PLACE. l

.NAIL-PLATE FEDER.

SPECIFICATION forming part of Letters Patent No. 355,584, dated January 4, 1887.

Application filed October 2, 1886.

To @ZZ whom it may concern:

Be it, known that I, JAMns M. BRYANT, of Benwood, in the county of Marshall and State of Vest Virginia, have invented a new and useful Improvement in Nail -Plate Feeders; and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention is an improved organization of mechanical elements designed to automat-ically feed the blanks from which nails are formed to the cutters of a nail-machine.

, My invention belongs to that particular class of machines in which the barrel for holding the nail plate or blank is, carried upon a pivoted support and oscillates to and from the cutters, being given a half-turn during the intervals between the cutting operations to present opposite sides of the blank alternately to the knives.

My object is to produce a perfectly auto# matic machine having all the movements nec- -essary to the effective accomplishment of the work, the various Operating parts being organized in a simple compact form.

My invention consists in .the special construction and arrangement of the operative parts, all of which will be hereinafter describ( d and claimed.

I n the accompanying drawings, Figure 1 is a side elevation of the device. Fig. 2 is a per-v spective view of the feeder. Fig. 3 is a plan V1e,w of the barrel and feeding mechanism.

In the drawings, A represents the bed of the machine, and B the shaft, supported in suitable standards, 1 2. The stationary cutter is shown at O. To the front end of the bed an arm, D, is pivotally supported in suitable ears, 3 and 4, so as to have an oscillatory movement when operated by the driving power. The upperend of this arm is formed into a journalbox, in which is carried a barrel, D', of substantially the same interionconstruction as is usual in these devices. The barrel is journaled-in a proper manner to have rotary move- Serial No. :215,l59.

I aim to simplify the construction of the device by employing the oscillating arm D as a support for as many of the operating parts as (No model.)

the requirements of the apparatus will permit.

I also aim to derive all the necessary movements from a single cam-surface through conl nections few in number and arranged in the most compact form.

The first movement to be effected is theoscillation of the barrel on its pivot, whereby the nail-blank is first moved upwardly and awayfrom the cutters lafter each cutting operation, for the purpose of allowing the blank to be turned to present its opposite sides to the knives, and then returned to its. former position to allow the cutting to be performed.

This movement is accomplished by the arm 7, one end of which is connected to the upright post on the j carnal-box, the other end terminating in a yoke, within which the cam E plays. During the movement of the barrel away from and back tothe cutters the half-revolution of the barrels with the nail-blank takes place, and this is done through the medium of the following mechanism:

The portion 8 of barrel situated outside of the bearing is provided with four teeth, which are engaged alternately by pull and push pawls 9 and 10, each having movement enough to rection. These are carried upon the upper end of an arm, F, pivoted upon the front side l of the oscillating post D. The connection betweenthe pawls and the arm is made by means of a long pin, 10, lwhich passes through these parts and projects a sufficient distance beyond to be acted upon by a forked lever actuated by the cams on the shaft. This arm is shown at l1, and is secured to a rock-shaft, G, journaled in suitable bearings in the bed 0f the machine and extending to the rear slightly beyond the main shaft. An arm, f, is secured to the rear end of this' shaft, extending laterally, so as to engage with a vertically-arranged link, H, by which its end is raised and lowered to rock the shaft. The operating-cam on the main shaft is employed to give this link the necessary vertical movement, and for this purpose t-he cam-yoke, heretofore mentioned, has a rearwardly-extending arm, m, positioned roo 1 directly opposite to the arm 7, connectingthel yoke with the oscillating arm. To the outer en`d of this arm the upper end of the vertical link is pivotally connected. A slot is formed vertically in the link adapted to receive a pin,

n, projecting from a suitable standard on the frame,whereby the link is guided and steadied in its movement. It will be observed that the link, besides having the necessary vertical movement, will also receive a vibratory movement resulting from the revolution of the cam, and in order to render this movement of the link ineffectual as to imparting any motion to the rock-shaft, I enlarge the lower end of the lever and form therein a curved slot struck from centers situated at the ends of the vertical slot in the link. The end of the arm f projects into this slot, and as the link swings from side to side no movement will be imparted thereto, but when the high part of the cam moves to raise or lower the link the sides of the slot will bear upon the end of the arm and move it accordingly.

From this construction, by which the two movements referred to are derived from one cam-surface through connections arranged to y be operated in different parts of the movements of said cam, I secure a-simple device, and the several motions must follow one another in their proper order.

The movement of the cam and its connections to the oscillating arm D and the pawls are all so timed that when the arm D moves backward the shaft will be rocked in one direction, and one of the pawls operated to partially rotate the barrel, and when the reverse movement of the arm takes place the shaft will be returned, and the other pawl thrown into action to complete the necessary halfturn. The connecting-pin between the pawl and its operating-arms is long enough to remain in engagement with the forked -arm at all parts of the movement of the arm D.

To feed forward the nail-blank at the proper moment I have provided clutches a b,conven iently positioned upon either side of the barrel to grasp the edges of the blank when the half-turn of the same has been effected and the barrel moves forward to place the blank in position for the cut. These nippers or clutches are carried upon the bifureated upper end of a lever, I. I pivot the lever to the oscillating arm Don the rear side thereof in the space, as shown, below the rear end of the barrel. It is pivoted near its lower end, and is provided with a screw-threaded push-pin, c, adapted to `strike the frame on the forward throw of the oscillatingl arm, and thus impart a-movement to the clutches in advance of the forward movement of the barrel. The pushpin may be adjusted to increase or diminish the amount of feed. It is essential that sufficient space be left between these clutches to allow the blank to be turned without striking, and that as soon as the turn is completed the edges should be grasped by the clutches to effeet the proper feed on the forward movement of thel barrel. For this purpose one of the clutches is pivotally connected to its supportings-arm, its forward arm being constantly acted upon by a spring, r, tending to push it away from the blank. During the turning of the blank this tendency is not resisted and the blank turns freely; but when the arm D moves forward and the clutches receive a movement in advance thereof the enlarged camshaped tail-piece o of the clutch rides upon a cam-projection, 19, ou the journal-box, and causes the forward end of the clutch to press hard against the blank, so that it may be fed positively forward.

.It may be observed that as the arm 7, proj ecting from the front ofthe yoke, is pivoted to the post on the arm D,the proper movement of the rearwardlyextending arm m, with its link,is secured, lthe pivot-point 13 acting as a center,whereby the movement is steadied and governed. By utilizingv the arm D as a support for the two operating-levers shown ,I make a very compact form of apparatus, for these parts occupy the space below the projecting ends of the barrel and are entirely out of the way. Y

Having thus described my invention, I claim- 1. In a nail-plate-feeding machine, -and in' combination, a revoluble barrel, D, teeth formed on the periphery of said barrel, push and pull pawls 9 and l0, an oscillating support for said pawls, and mechanism, substantially as described, for operating said support, whereby the pawls act alternately upon said teeth, substantially as described.

2. The combination, with the revoluble barrel D', of a nail-plate feeder having teeth formedthereon, push and pull pawls 9 and 10, acting upon said teeth and carried by an oscillating support, acam on the main shaft, a shaft or its equivalent actuated alternately by the high and low parts of the cam, connections between the said pawl-support and the said shaft, an oscillating supporting-arm for the barrel, a connection thereto actuated alternately by the high and low parts of said cam, 'whereby when the arm moves in one direction one pawl will be operated and when in the opposite direction the other pawl will be operated, substantially as described.

3. In a nail-plate feeder,and in combination, a revoluble barrel, D', an oscillating support ingarm, D, therefor, mechanism carried by said arm for operating the barrel, a rock-shaft, G, and connections for actuating said mechanism, cam mechanism on the shaft B, and connections between said mechanism and the rockshaft, consisting of a link, H, and arm f, substantially as described. 4

4. In a nail-plate feeder, and in combination, a revoluble barrel, D, an oscillating support` ing-arm, D, therefor, nippers for feeding forward the nail-plate arranged to act directly upon said plate, the supporting-lever I for said nippers, pivoted to the oscillating arm D, the

IXO

cam-shaped tail-piece on `the pivoted` lever,

opposite end of the barrel, allsubstantially as described, v

6. Inanail-plate feeder, andin combination, a revoluble barrel, an oscillating arm, D, for supporting the saine, mechanism for operating the barrel, a cam on the shaft B, a yoke actuated thereby, an arm, 7, projecting from said yoke and connected to the oscillating arm,and

an arm, m, projecting from the opposite side 2o of said yoke for operating the barrel-revolving mechanism, substantially as described.

7. In combination with the vertically-movable link, a yoke having a projecting arm, m,

connected thereto, an oscillating arm, D7 and 2 5 an arm connecting said yoke with arm D,.sub stantially as described.

In testimony whereof I have signed my name to this specification in the presence'of two subscribing Witnesses.

JAMES M. BRYANT.

Witnesses:

Trios. PELLEY, B. F. PEABODY.

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