US367389A - Nail-plate feeder - Google Patents

Description

2 Sheets-Sheet 1.

J. 0. GOULD.

NAIL PLATE FEEDER.

(No Model.)

Patented Aug. 2} 1887..

Jzln 0.8 01428. ggMLL/W NVPETERS. Phalvlilhogmpher. wmin mn, n. c.

(No Model.) 2 Sheets-Sheet 2.

J. G. GOULD.

/ NAIL PLATE EEEDEE. No. 367,389. Patented Aug. 2 1887.

1 minessesz Ivzvefiforz 4 -W Joim ileum Zis fifio flfj8'.

I4. PETERS. Phowmha m hur, Wuhin wn. 04 C.

UNITED STATES PATENT OFFICE.

. JOHN ocouLD, on CHICAGO, ILLINOIS.

NAIL-PLATE FEEDER.

SPECIFICATION forming part of Letters Patent No. 367,389, dated August 2, 1887.

Application filed February 4, 1886. Serial No. 190,750. (No model.)

in the county of (look and State of Illinois,

have invented a new and useful Improvement In Nail-Plate Feeders, of which the following is a specification.

This invention is designed to simplify the mechanism of this class of machines, and to render them more easily adjustable than heretofore.

The nature of the improvement is fully set forth below, and fullypointed out in the claims.

In: the drawings, which form a part of this specification, and in which similar letters of referenceindicatelikeparts, Figure 1 is a plan v1ew of my invention. Fig. 2 is apartial side elevation and partial vertical section of the same, the sectional partbeing taken upon the line 2 2 of Fig. 1. Fig. 3 is a section through the barrel. Fig. 4 is a View of the cam for oscillating the barrel to and from the knives. Fig. 5 is a section of said cam on line 5 5 of Fig. 4.. Fig. 6 is a detail elevation of the pivotal post of the lever, whereby the barrel-turning rack is operated. Fig. 7 is an end elevation of the support for upholding the outer end of the nail-plate rod, and Fig. 8 is a side elevation of the same. Fig. 9 is a face view of the crank from which the barrel-actuating rack receives its motion. Fig. 10 is a central longitudinal vertical section through the bracket upon which the barrel-supports are pivoted and oscillated. Fig. 11 is asection on theline 11 11 of Fig. 2. I

In said drawings, A represents the ordinary barrel of this class of machines. It isincl'osed by and finds a bearing in a cylinder consisting of two separable halves, A and A The latter of these is provided with a rearward extension,A which is pivoted upon screws a in the arms B of the standard B, adjustabl y secured by the bolt 1) upon the saddle O, pivoted upon the points of horizontal screws 0 in the lateral extensions of the bracket D. This bracket I secure to the under side of the table E by a bolt, a, passing through an elongated be noticed, also, that the bolt 11 passes through an open slot, 2', which permits the standard to be raised and lowered, thereby enabling the giving ofa greater or less-inclination to the barrel.

To keep the barrel, which is pivoted in effect upon screws or at its rear end, down to its work, as its gravity may not always be sufficient, I provide a spring, F, the upper end of which 'is-held by an adjustable projection, f, upon the arm G, rising from the side of the standard 13. The screw F limits the depression of the barrel, and permits adjustment in that regard.

The rotating movements of the barrel are imparted to it by a sliding rack, H, traveling in a runway provided in the part A I am aware that the barrel has heretofore been rotated by means of a reciprocating rack in engagement with a gear-segment on said barrel, and therefore do not propose to claim, broadly, that method of driving thebarrel; but in all machines known to mewherein the barrel is so driven the reciprocating rack moves on a bearing unconnected with the inclosing-cylinder in which the barrel has its pivotal bearing, My improvement obviates the disadvantage of this disconnection of bearings by making the bearing'surface for said reciprocating rack in and integral with the cylinder, whereby thebarrel-gear and its driving-rack cannot separate nor get out of proper engagement.

The sliding rack H is reciprocated by the elbow-lever J j, which receives motion through the pitman K and crank M from the gear N, actuated by the smaller gear, a, on the drivingshaft m. The elbow-lever arms are heldv in the pivotal post 70, and'the joints between the said arm j and pitman K and between pitman K and'crank M should of course be such as will permit the compound movements of the parts. The rack H carries an upwardly-extending pin, h, which is received between wings 0, carried on the end of the arm J. The wings 0 and the pin it form a free joint, allowing much liberty of movement to the racks, and thus no interference is caused with the vibratory movement to and from the knives.

The bolts L,by which the box in which the arbor of gear N revolves is held to the machine, pass through elongated slots in said box, so that said gear audits crank can be changed in position to aecommodatethe requirements of different machines.

0 represents a cam secured to the gear a and operating the lcverl, by which the barrel is oscillated to and from the knives. This lever P rides upon the cam, and at the other end is secured in the upright arm G, the at tachment to the latter being adjustable. The cam is provided with a segment, 0', pivoted at one end on pivot 12, and adjustably held at its other end by the screw 0'. By adjusting this segmentthe extent of throw communicated to the lever Pas it rides up the incline It of the cam is regulated.

The cam 0 is provided with an abrupt shoulder or incline, It. This incline is so located as to come in contact with rod 1? and give it a somewhat quick upward impulse at the start of the lifting or upward action of the cam, thereby communicating to the barrel a quick motion at the initial end of its backward movement. In this initial motion the barrel, being pivoted as described,is atliberty to move back in a substantially straight line until contact between the set-screw Fand the standard B takes place, when its motion is changed to a curvilinear one. The initial straight movement thus caused takes place during the time the knives are operating on the plate. Iavail myself of this feature in order that I may dispense with the pushing-grippers which I have heretofore employed to feed the 11ail-plate, inasmuch as the knives will hold the plate stationary while they are cutting it, and consequently, if the backward movement is quick and timed to take place during the cutting, the plate will be drawn out of the barrel the width of anailblank, and so be ready for the next cut. This permits me to substitute for the gripping-feeders a simple forked support,

S, in which the nail-plate rod may lie. Such support may consist of a vertical plate secured to the upright end of the bracket T by bolts 8 and t, and may be rigid; but I prefer that it should be made of spring metal and that the upper bolt, 1, be set out, as shown, so that the plate S may yield in the direction in which the rod moves when theknob at the rear end of the nail-plate nipper-rod comes in contact therewith. This contact always occurs when the nail-plate is presented for the last cut. It results from this construction that as soon as the last nail has been severed the plate S will spring back to its normal position and draw the rod with it, so that the latter is prevented from being pulled into the knives and injured thereby.

It will be noticed that the machine, as shown, permits a great variety of adjustment, so that it can be without change in construction fitted to any of the ordinary nail-cutting machines. This adjustment is particularly useful in the ease of standard B. It should also be noticed that the simple bolt attachment to the table of the barrel support allows the parts to be swung around said bolt, as well as adjusted longitudinally thereon, which is often an advantage. The barrel pivotallyjoined to the standard, as shown, also possesses ability to yield and spring up out of the way of the knives when any extra strain comes upon it from below, and thus avoid the breakage which might otherwise occur.

\Vhen the barrel needs to be tipped back from the knives for any reason, my present construction allows it to be done very eonveniently, it only being necessary to loosen the lever P from its socket attachment to arm G; to allow this to be done, the connection between the clbow-levcr and the barrel-rack being such as to require no unfastening of those parts. The rest U upon the bracket 1) sup ports the parts, when thus tipped baek,by contact with the saddle C.

' The operation of the feeder will be fully understood from what has been already written. It will be noted that the shaft heretofore placed under the machine and carrying power to the barrel-rotating segment has been moved from that place, so that there are no moving By suspending the barrel upon pivots at its rear end I obtain the benefit of its gravity in keeping it down in position, and also throw the center of gravity of the parts carried by the standard B in front of the center of oscillation, the barrel outwcighing the bracket T and the nipper rod supports or grippers, where such are used. The barrel by this construction also rises easily when extra strain comes upon it, thus avoiding what would otherwise result in breakage.

I claim 1. In combination, the rotating plate earrying barrel provided with a toothed gear, a reciprocating rack in engagement therewith, a cylinder provided interiorly with a pivotal bearing for said barrel and beneath with a transverse guideway for said reciprocating rack, a detachable lever for reciprocating said rack, and avibrating standard, 13, attached to said cylinder and pivoted on the frame, sub stantially as specified.

2. In a nail-plate feeder, the barrel and its cylinder, in combination with the sliding rack working in said cylinder, and the rod J, connected to the rack by a free joint, essentially such as described, all being located above the table of the machine,substantially as specified.

3. In a nail-plate feeder, the combination of the barrel, the barrel-cylinder, the rack, the elbow-lever, the pitmamand crank, all arranged and operating substantially as specified.

4.. The combination, with the barrel and its standard 13, of the saddle O, bracket D, and bed E, the bracket being longitudinally adjustable uponthe bed, substantially as specified.

5. The barrel and its supports pivoted upon the saddle G, in combination with the lever P for imparting oscillation and the elbow-lever for imparting rotation, the former being detachable and the latter separable without unfastening, substantially as specified.

6. In a nail-plate feeder, the barrel pivotally attached to its support B, in combination with,

such support and a spring, F, tending tokeep the nose of the barrel down, substantially as specified.

7 In a nailplate feeder, the barrel pivotally attached to its support B, in combination with such support and an adjusting-screw, F, substantially as specified.

8. In a nail-plate feeder, the pivotally-attached barrel, the support B, the spring F,and

screw F, all combined and operating as set forth. 1

9. The cam O and the lever P, operated thereby, in combination with the standard B, the barrel, and the barrel-cylinder, the latter being pivotally held upon said standard, substantially as specified.

10. The cam 0, having the adjustable segment 0, in combination with the lever 12, substantially as specified.

11. In a nail-plate feeder, the abruptly-acting cam for oscillating the barrel, in combination with the barrel, substantially as specified.

12. In a nail-plate feeder, the barrel and a quickly-operating device for throwing it back from the knives, in combination with the knives, the parts being timed so that the barrel will move back while the knives are cutting, substantially as specified.

13. In a nail-plate feeder in which the barrel moves back during the cutting by the knives, the combination, with such barrel, of a yielding rod-support, substantially as specified.

14. The nailplate feeder consisting of the barrel, the abruptly-inclined cam, and lever P for oscillating the barrel, the rack audits actuating devices for turning the barrel, the pivoted standard for supporting the barrel, and the forked rod-support, all combined and operating substantially as specified.

15. In a nail-plate feeder, the crank-bearing gear N, from which the rack is actuated, mounted in an adjustable box, in combination with the rack and the mechanism carrying mo- .tion from the gear to the rack, substantially as \Vitnesses:

H. M. MUNDAY, Enw. S. EVARTS.

Images