USRE2301E - Improvement in nail-plate-feeding machines - Google Patents

Description

UNITED STATES JOHN G. GOULD, OF BOONTON, NEW JERSEY.

IMPROVEMENT IN NAIL-.PLATE-FEEDING MACHINES.

Speeiiieation forming part of Letters Patent No. 1'7

,273, dated May 12, 1857; lReissue No. 2,301, dated July 10, 1866.

and operation of the same, reference being` had to the accompanying drawings, which are made part of this specification, and in which- Figurel is a side elevation of the machine. Fig. 2 is a plan or top view. Fig. 3 is an end view, showing the part simmediately involved in the feeding. Fig. tis a centrallongitudinal section of the nosepiece.

Thesame lettersrefer to corresponding parts in the different figures.

Myinvention has reference to the method of feeding the naitplate to the critters; and it consists, lirst, in the devices for advancing the nail-plate to the critters, second, in the devices for operating the nose-piece through which the material is supplied to the cutters; third, iu so hin gin gthe carriage or supporting-frame ofthe feeding nose-piece and connecting` the same with the shaft which gives its vibratory movement as to adapt said nose-piece and the devices employed in immediate connection therewith to be turned back away from the cutters to render them more readily accessible.

In order that others skilled in the art to which my invention appertaius maybe enabled to fully understand and use the same,.I will proceed to describe its construction and operation in detail with reference to the accompa y nying drawings.

Devices for heading the nails ai they p ass from the cutters are represented as combined in the same machine as my improvements; but as they form no part of this invention they will not be further alluded to.

y A isashaft, upon which maybe fixed a pulley to receive a belt, through which motion may be transmitted to the nail feeding and cutting devices from a suitable prime motor. B is a iiywheel mounted upon one end of the shaft A, which for the sake of distinction and by reason of its function will be called the drivin g-shaft. C is a cog-wheel, keyed upon the driving-shaft and gearing with another cog-wheel D, keyed upon a shaft, E.

The shaft E has its bearin g in the lower end 0f one of the uprights F F, which rise from the main frame H H, and which support the drivin g-sh aft at its two ends. The inner end of the shaft E carries a crank, c, which is connected by a wrist-pin to the pitniau E', thelower forked end of which is connected by a ball-joint with an arm, F', which is formed with a tubular hub or head,j, which is made fast to the rock-shaft G, to adapt the arm F' to im part motion thereto. On the opposite end of the rock-shaft G, near which it has a suitable bearing, is fixed and supported a box, L', which is vibrated in a vertical plane as the shaft G rocks.

In the box L' is journaled a short rock-shaft, Y, which, while it partakes of the vibration of the box L', is adapted to rock or turn upon its axis within the box, which allows it to conform to the movements traced in the course of the following description.

F2 is a bent metallic-bar, the lower horizontal portion of which is made fast to the roekshaft Y. The upper horizontal portion of the bar F 2 constitutes a segmental rack, F3. The bar F2 is vibrated with the shaft Y, and the rack F3, gearing with a cogged rim, d, on the tubular nose-piece U, communicates a rotating reciprocatory movement to the latter.

The nose-piece U is tubular or hollow throughout, and for the greater portion'of its length it is cylindrical, in order that it may turn freely within its bearing or box I), which is composed of two parts bolted together and thus fastened around the nose-piece, as represented. The inner end of the nose-piece is contracted so as to be adapted to turn the nailplate, which is placed in the nose-piece to be fed to the cutters. Apin, k, on the bearingl3 serves as a stop to insure a positive limit tov the rotary movement of the nosepiece.

O is an upright metallic support, on the upper end of which rests the journal-box I) and rotating nose-piece U. The support O is attached to a shaft, M, which is pivoted in the lugs or bearings S' S', which are adjustable' vertically on the framing H. From the pivoted shaft M also rises an arm, N, having a set-screw, b, for pressing laterally the rear end of the nosepiece to chan ge the size of the head. 4

The principal function of the nose-piece is to -hold the plate or material in position while it is being acted upon by the cutters I I'. -The cutter I is stationary; but the cutter I', which is fixed in the pivoted cutter-head K, is moved the movement imparted to up a-nd down through the medium of the arm Vit, pitman Vt', and crank-wheel Vit2, the latter being mounted upon one end of the driving-shaft A. On the driving-shaft A is also fixed or formed a cam, A', over which is fitted a collar, A2, to which is connected a rod, V, the latter being attached to a rod, V', projecting from the journal-box P of the nose-piece U. The cam A' moves the rods V V' back and forth as the shaftA rotates, and the nose piece with its appendages are thus carried toward and away from the cutters I I'.

The rods V V' are connected together by means of a set-screw, w, by loosening which the two rods can be readily disconnected, to facilitate which the end of the rod V' is slotted so-that it may rea'dilyliberateitself in a longitudinal direction when not clamped to the rod V by the screw w. By thus disconnecting the rods V V' from each other the nosepiece U with its appendages can be turned back 4with or upon the hinged or pivoted shaft M, so as to be out of the way ofthe cutters I I', which it may be desired to render accessible in order tosharpen, replace, or adjust them. p

The shaft Y being free to rotate, and its axis being in line or at least parallel with that on which the shaftM vibrates, the connection between the rack F3 and cogged rim d is not broken when the nose-piece U is turned back out ofthe way of the cutters. `This adaptability of the parts is known to be of considerable importance by persons familiar with the operation of this class of machines, for the manipulation of the knives is of frequent occurrence and attended with difficulty in machines in which the retaining or feedingV devices are immovable.

R represents ahorizontal arm bolted to the under side of the upper horizontal portion of the support O, and projecting backward from the nose-piece U, in the manner reliresented.

S S2 is the device for feeding the na1-plate, which is grasped by the nipper-rod Z, and by means of the latter introduced into the nosepiece U. The rear end of the nipper-rod rests inthe recess s in the top of the feeding device, the .part S of which is a lever pivoted to the end ofthe arm R, while the part S2 is a spring attached to the lever S by a screw, f. It lwill be seen that the rear end of the nipperrod, being thus permitted to rest in the recess between the spring and lever ofthe vibrating feedingdevice, and being' liat in form, is tightly clampedibetween the lever S and spring' S2, when itis turned bythe rotation of the nosepiece and pushed forward to feed the nailplate,.thei.i, when the nose-piece has ceased to turn and assumedv its original position, the Dipper-rod stands up edgewise within the rccess `s, and is released from the grasp of the spring. Hence, as the nose-piece does not rotate during its backward movement, and as the nipper-rod depends upon the rotation of the nose-piece, the nail-plate, together with the nipper-rod, re-

main stationary lduring, said backward movement.

The movement of the nipper-rod to effect the feeding' ofthe nail-plate, as above described, is caused by a rod, T,and spring Ja. The rod T, coming in contact with the framing'of the machine as the nose-piece is advanced, turns the feeding device S S2 upon its pivot, throwing its lower end backward and its upper end forward. As soon as the nose-piece U commences its backward movement the openingspringa acts to throw back the upper end ofthe feeding device.

e is a stop upon the arm R. for limiting the vibratory movement of the feeding device.

On the rear extremity of the nipper-rod is a ring or disk, a, which, by coming in contact with the feeding' device, prevents the said rod from further advancement.after the nail-plate is exhausted. This saves the rod from the injury it would receive if carried forward to the cutters. The ring or disk z may be adjusted as occasion may render desirable.

It is manifest that, inasmuch as the support O vibrates in the arc of a circle, its top is at "a lower point when thelnose-piece a is advanced than when the latter is retracted, so that in the act ofiretracting the nose-piece the support O raises the same out of contact with the stationary cutter, and so permits the said nosepiece to be rotated freely.

f' is a guide on the bed, near the side of the nose-piece where the nail-head is, which causes a uniformity in the heading', for if the plate is a fraction widerjhere than at other points the head end rests against the guide and presses open the spring on the other side and so, when the nose-piece is rotated, the spring will open on the other side. A

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

' 1. The feed or nipperrod a and the feeding device S S', in combination with the rodTand nose-piece U, as and for the purposes specified.

2. Fixing the bar F2 on which the rack F3 is formed uponja` shaft, Y, journaled within and supported by a vibrating box or bearing, L', substantially as and for the purpose set forth.

3. Supporting the nose-piece and feeding devices upon a hinged or pivoted shaft, M, to adapt them to be turned back to render the cutters accessible, as described.

4. Connecting the nose-piece with the drivingshaft by means of the two rods V V', adapted to be disconnected, asidescribed, to admit of the turning back of the nose-piece.

5. The combination ofthe rock-shaft G, vibrating box L', rock-shaft Y, bar F2, cogged rim d, and nose-piece U, substantially as and for the purpose speciiied.

JOHN (3.1 GOULD.

Witnesses:

W. G. WreetNs, J oHN C. GRENE.

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