US354980A - hersey - Google Patents

Description

(No'Model.) ,l @sheetssheen 1.

V R. .HERSET 'NAIL PLATE FEEDER. No. 854,980. Patentedne. 2,8, 1888'.-

j (N'o Model.) 6 Sheets-Sheet 2.

R. HERSEY.

NAIjL PLATE FEEDER.

10.854888 Patented 1368.28, 1888.

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(No Model.) 6 Sheets-vSheet 4.

rR. HERSEY. NAIL PLATE FEEDER.

No, 354,980. Patented Den. 28, 1886.'

(No Model.) 6 Sheets-Sheet 5.

R. HERSEY. NAIL PLATE FEEDER.

No. 354,980. Patented 1360.28, 1886..I

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.(No Model.) 6 Shets-Sheet 6.

R. HERSEY. NAIL PLATE FEEDER.

No. 854,980. Patented 1380.28, 1888.

RANDOLPH HERSEY, OF MONTREAL, QUEBEC, CANADA.

NAIL-PLATE FEEDER.

EPECIFICATION forming part of Letters Patent No. 354,980, dated December 28, 1886.

Application filed October 11, 18S6. Serial No. 215,59. (No model.)

To all whom it may concern: Y

Beit known that 1, RANDOLPH HnRsEY, of the city of Montreal, in the district of Montreal and Province of Quebec, Canada, have invented newand useful lmprovementsin Nail- Plate Feeders; and I do hereby declare that the following is a full, clear, and exact description ofthe same.

-This invention has reference to the construction and arrangement of a mechanism for presenting the plate from which pieces are out by a nail-cutting machine (or by a 1iail-blankcut ting machine) tothe cutters of the said machine.

The mechanism forming my present invention is arranged to presentV the nail-plate to the cutters of the nail or nail-blank cutting machine at the proper angle, after which it automatically draws back the plate and raises it, turns it over, lowers the plate, and again presentsitto the cutters ofthe nail-cutting or nailblank-cutting machine.

My invention also providesthat the feeding motion of the nail-plate will stop when the nail-plate has been cut down as close as may properly beto the nipper-rod ortongs by which it is held, and other features, which will be hereinafter set forth.

The particular combinations of features or elements which form my present invention will be hereinafter fully set forth and claimed.

In the drawings hereunto annexed similar letters of reference and numeralsindicate like parts; i

Figure 1 isa side elevation of a machine embodying my invention, shown in connection with a diagram ofthe principal parts ofa nailcutting machine to which it is connected. Fig. 2vis a diagram showing the motions of some of the principal parts forming the mechanism embodying my invention, as shown in Fig. 1. Figi?, is aside elevation, part in section, 'showing the mechanism embodying my invention in the position presenting the nail-plate to the cutters ofthe nail-cutting machine. Fig. 4 is a plan of the mechapism shown in Fig. 3. Fig. 5 is a longitudinal section taken on line a: x, Fig. 4, showing also the nipperrod or tongs for holding the nail-plate, which are omitted in Fig. 4. Fig. 6 is a Section on line y, Fig. 5. Fig. 7 is an inner side elevation of the rackkthrough an elongated opening, p. '4.)

part being taken on line x x, Fig. 12. Figs.

14, 15, and 16 are details of construction and arrangement of spring and followers. Fig. 17 is a section on line mx, Fig. 13. Fig. 18 is a plan ofthe pawls by which the nipperrod or tongs are operated. Fig. 19 is a plan of the nipperrod or tongs. Figs. 20, 21, and 22 are modifications of the cam formed on the front end of the lever i', Fig. 22 being a section on line x Fig. 20.

Letter a is the bed of an ordinary nail-cutting machine. b isthe driving-shaft; c, the cutting-jaw, carrying the moving cutter d. e is the rest carrying the bed or stationary cutter f. (See Figs. 1 and 3.) All `these parts are arranged in the ordinary manner.

On the driving-shaft b is secured a pinion, g, intermeshing with a gear-wheel, h, the pinion being half the diameter of the gear-wheel h, so that the wheel h will make but one revolution to two of the pinion g. To the wheel h is attached an adjustable pin, i, to which is attached the connecting-rod k, the lower end of which is attached to a lever, Z, carried in a bracket, m, attached on the under side of the frame a, the whole being arranged so that the leverl will make one vibration to each cut of the cutter d, which' cuts off pieces from the nail-plate.

v All the abovedescribed parts are arranged in a similar manner to that which has been in use prior to my present invention.

To the under side of the frame c, and at the front end thereof, is attached a sub-frame, n. This is attached by two bolts, one. passing through a circular opening, o, and the other (See Fig. This is for the purpose of enabling the necessary amount of adjustment of the angle at which the nail-plate is presented to the cutters, and gives the desired width of point to Y Y pin s.

.rack h of the lever z".

the nail. The frame n, being pivoted on the bolt passing through the opening o, rotatesa small amount thereon that it is allowed by the length of the opening p.

On the frame n is formed a bracket, q, made integral with the frame n, or attached separate, as desired. On the frame n is formed an ordinary bearing, o", carrying an ordinary rockshaft, s.

To the bracket q is pivoted, b y the pivot t, the arm u of a swinging frame, a'. At the rear or back end of the swinging frame is formed a bearing, b', for holding a revolving cylinder, c. The rear end of the cylinder is provided with an ordinary nose-piece, d', similar to those at present in use in automatic mechanisms for presenting nail-plates to nail-cuttingr machines, and therefore need not be more particularly described.

The front end of the cylinder c' is provided with beveled teeth e', forming it into a beveledl gear-wheel. These teeth e intermesh with similarly-beveled teeth j", formed on a segmental rack, L, made integral, preferably, with the lever t", pivoted on a double eye or bracket, 7c', formed on the swinging frame a by the pivot-pin Z. The lever 'i extends beyond the pivot-pin Z', and on its front extremity is formed a segment, m', provided with a cam projection, n', which will be hereinafter more particularly described.

At the front end of the lever Z is attached a pin, o', preferably in a slotted hole, for the purpose of allowing for adjustment. To the pin o is attached the lower end of a connectingrod, p. The upper end of the connecting-rod p is attached to a pin, g', on the segmental By this arrangement, as the lever Z is vibrated by the connectingrod k and pin i on the gear-wheel h the extent indicated by the dotted, solid, and chain lines 1 in the diagram Fig. 2, this causes the connecting-rod p to move the extent indicated by the dotted, solid, and chain lines 2, causing the lever t" to vibrate the extent indicated by the dotted, solid, and chain lines 3, from which it willbe understood how the lever t" is operated.

` In the lever t" is secured in a slotopening, 1", a pin, s', thereby allowing for a certain amount of adjustment of the position of the The pin s is connected by a'connecting-rod, t', to the pin u of an arm, n, of the rock-shaft 8.

On the under side of the swinging frame a is formed an eye, a2, to which is connected by a pin, b2, the connecting-rod c2, the lower extremity of the connecting-rod c2 being attached to the pin di of the arm e2 of the rock-shaft s. By this arrangement'the motion which is imparted to the lever i, as hereinbefore described, and the extent of which is represented by the lines 3, Fig. 2, causes the connectingrod t to move the extent indicated by the lines 4, causing the arm 'v' of the rock-shaft s to vibrate the amount indicated by the lines 5 and the arm e2 to vibrate the amount indicated by the three lines 6. This causes the connecting-rod c2 to move the extent indicated by the lines 7, causing the frame a to swing upon the pivot t, the position of which is indicated in Fig. 2 by the point t, thereby moving the center line ot the frame a' and parts attached to or on it the extent that the line 8 (which is also one of the lines 3) is from the line 9. From the position of the pivot t the action ofthe arm e2 and connecting-rod c2 not only causes an oscillating motion up and down of the frame a', but also causes a backward and forward motion of the swinging frame a', which is indicated by the difference of position of the points 10 and 1l in Fig. 2, whichl points represent the center of the pin l.

It will be observed that while the arm c2 is shown in three positions,6,onlytwo positions, 12 and 13, of the pin b2 result therefrom, and the position of it caused by the action of the rock-shaft arm e2 and connecting-rod c2 upon the swinging frame a', because when the'rockshaft arm e2 is in the central position of the positions 6 the center of the pin b2 is raised and moved forward to' the position 12, while at the extremities of the movements of the rock-shaft arm e2 the pint2 is lowered and brought backward at both extremities of the movement to theposition 13, and so with every portion of the frame a and parts attached thereon. I wish to call particular attention to this last above-mentioned movement, because each time the center of the pinb2 is brought to the position 13 the nail-plate is presented to the cutters (and a piece cut off to be formed into a nail) in the manner which will be hereinafter described.

From the above description it will be understood that each time the lever l makes a complete vibration the cylinder c is caused by the segmental rack hto make an exact half-revolution, bringing at each extremity of said halfrevolution the nail-plate f2 to the position shown in Figs. 3 and 4, while at the midway position of the vibrations the nail-platef2 will be in the position indicated in Fig. 1. On the front end of the swinging frame a is secured the rest gz by bolts h. The rest g2 consists of a bed, i2, provided with a dovetailed recess, k2, suitable for receiving the slide Z. (Shown in Figs. 12 and 13 on a somewhat larger scale.) This bed t2 is madeintegral with a head, m2, provided with projections n, in which are formed recesses for holding the springs o2 and Vheads p?. The springs o, as shown, consist of rubber cushions. The in.- ner surfaces of the heads p2 project slightly into the space q2 between the projections n2. This space is so arranged that it'will be central with the center line of the cylinder c', and the heads p2 will be arranged to grip tightly between them such portionof the body ofthe nipper-rod or tongs r2, situated between them, in the manner hereinafter mentioned.

s are cover-plates secured on the projections n for keeping the springs o2 and heads p in place.

IIS

The slide Z2 consists of a plate dovetailed and recessed, as shown by the cross-section given of it in Fig. 11 and by the longitudinal section in Fig. 17. (See also front elevation and 15 j ustmentof the screw e3 the action or pressure of the spring (Z3 may be increased or dimin ished.

On the front portion of the slide Z2 a projection, g, is formed, in which is secured a pin,V

h3, encircled by a thimble or bush, is, which forms a roller to roll upon the periphery of the segment m and cam projection a', being properly situated for that purpose, as shown in Figs. l, 3, and 4, so that as the lever Z is partially rotated on the pin Z the slide Z'L is caused to travel back and forward at each vibration of the lever 1l the amount due to the amount of projection that 4the cam projection a extends beyond the remainder of the segment m', unless it is in a manner prevented from so doing, as will be hereinafterdescribed.

On a projection, k3, of the upper surface of the slide Z2 are pivoted two pawls, Z"s and m3, one of which is a little shorter than the other. These are each actuated by a spring, n3, the springs being attached to the sides of the projection 7c, the whole being arranged so that the pawls Zs and m3 press inward to grip upon serrated peripheral rings formed on the body of the nipper-rod or tongs, in the manner hereinafter'described. Y

o3 is a guideplate attached, as shown, on one side of the bearing b', receiving in a suitable groove formed in it the outer portiomps, of the segmental rack h, for the purpose of guiding and rendering the lever Z perfectly steady transversely during its vibrations.

The nipper-rod or tongs consist of a pair of spring-jaws, qa, mounted on a rod, r". (See Figs. 5 and 19.) The force of the jaws g3, to nip the nail-platefz, is augmented by forming them slightly tapered and providing them with a slip-collar, r3, to be used in the wellknown ordinary way.

The rod r2 is provided with peripheral serrations s3 throughout a large port-ion of its length, as shown, and with a collar, t3. (See Figs. 1, 3, and 19.) The nipper-rod or tongs, with the nail-plate]c2 held by it, are placed in position as shown, the nail-platef2 being received within the cylinder c', and held and guided by the nose-piece cZ at the end of the cylinder, while the rod r? of the nipper-rod or tongs is placed in the space q2, between the heads p2 and pawls Z3 and ma, (see Figs. 4, 11, and 18,) so that the pawls Z3 and 'm3 are enabled to act upon the serrations or rings s3,

-erence to Fig. 3.

and as the slide Z2 movesV forward they slip over the serrations s3,- but as the slide Zimove's backward the pawls engage with the serrations si and move backward the nipper-rod or tongs, thereby moving backward or feeding out the nail-plate'f2 from the nose-piece cZ, to be acted upon by the cutters d and f, in a manner which will be readily understood by ref- By making the pawls Z3 and m3 of unequal length, as shown, (see Fig. 18,) they give a smaller or finer graduated feeding action of the nipper-rod or tongs.

at is the ordinary stop-bar, with which nearly if not all cut-nail machines are provided. This is technically called the nip` per-gage. One of its objects and'purposes is to govern the amount that the nail-plate is passed in between the cutters ZZ and f. The one shown and marked (Z4 is substantially similar to those which are and have been long in use. Therefore it need not be further described.

The operation of my invention is as follows: The parts above mentioned having been constructed and arranged together as described and shown, and the moving parts put in motion in the ordinary manner, it will be seen that at each descent of the cutter d, held in the cutting-jaw c, the leverZ makes one complete vibration up or down. This causes, through the connecting-rod p', a vibration of the segmental lever Z. Each vibration of the segmental lever z" causes a half-revolution of the cylinder c'. This is so timed that-when the segmental lever Z is at either end of its vibration the nail-platef is fairly lying on the cutter f, as shown in Fig. 3. Therefore, when the segmental lever Z' is in a midway position of its vibrations, the cylinder c will hold the plate]c2 in a position at right angles to the cutter f. In this position it is shown in Fig. 1. The vibrations of the segmental lever are transmitted, through the connectingrod t', arm v', rock-shaft s, arm e2, and connecting-rod c2, to the frame a', causing it to rotate slightly upon the pivot t, thereby providing for the necessary motion up and down to enable the cylinder c and plate f to be raised clear of the dief as the cylinder and plate turn over; and not only to do this, but from the relative location of the pivot twith regard to the frame a it causes the frame a and all the parts attached thereon to swing bodily forward a small amount as thecylinder c rises to the position shown in Fig. l, and swing bodily backward an equal amount as the cylinder-c descends to the position shown in FigrS.

Before proceeding further with this description of the operation I wish here to remark that it has been hereinbefore described, and, as shown in the drawings, the front end of the cylinder c' is provided with beveled gear-teet-h e', extending around the whole of its circumference. It is not necessary that the gear-teeth e' should extend the whole way round the circumference, because it is only necessary for the cylinder c to be made to re- IOC IZO

1o f/ of the segmental rack h.

Returning now to the operations of the paris, while the abovedcscribed operations of the frame a and its attachments are taking place,

the segment m', situated on the front end of the segmental lever Z, is being` vibrated up and down, causing the cam projection n', through the roller i and pin h, to operate the slide Z2, carried in the rest g, which it does in the following manner: When the cani projection a' is iu contact with the roller Z, the slide Z2 and pawls Z3 and m3 are moved forward or in the direction ofthe arrow marked 1 in Fig. 4. The amount that the cam projection n presses forward the slide Z2 the spring is compressed to allow this motion, and the spring d remains compressed during the period occupied by the passing of the cam projection n', which, it will be observed, is ot' considerable length. As soon as the cam projection a has passed, as it does at the end of each vibration of the lever i', the force of the spring d causes the slide Z2 to move rearward or in the direction indicated by the arrows 2 in Figs. 3 and 5, thereby causing the pawls Z:i and m3 to move rearward the nipper-rod or tongs r2, and consequently pushing out the nail-plate f2, or, in other words7 feeding out the plate flfrom'the nose piece d. The cam projection n is made to project slightly more than the amount required to give the necessary feed required for the nail-plate f2. The backward travel of the slide Z2 is governed by the end of the nail-platef2 coming in contact with the stop -bar or nipper-gage at, thereby holding the roller i at a short distance from the periphery of the segment m', the stop-bar or nippecgage a* being enabled to do this because the feed motion is solely depending on the action of the spring (Z3. The part of the nipper-rod or tongs r2 placed between the projections a2 is held with sufficient force and friction by the heads p2 in the space q2, (sce Figs. 10 and 11,) to prevent the nipper-rod or tongs from being drawn forward by the forward movement of the pawls Z3 and m3, and to overcome, also, any tendency of displacement of the nipper-rod or tongs by the movements of the frame aand its attachments. The feeding of the nail-plate f2 takes place each time the nail-plate and nose-piece cZ of the cylinder c are brought to the position shown in Fig. 3w that is to say, each time the nail-plate is laidfair on the cutter f, and preceding, by an instant of time, the moment at which the cutter d will be brought down upon it and sever a piece therefrom to form a nail.

With regard tothe cam projection a', in case it should be desirable in certain machines to {tongue-joinen?, so that should they be moved apart for the purpose of increasing the length of the cam projection the continuous bearing for. the roller i to travel on (see Fig. 3) may not be destroyed thereby.

I prefer to use the cam projection n in the manner hereinabove described-that is to say in connection with the stop-bar or nippel'. gage a, which latter positively governs the feed of the nail-plate, and not the motion of the slide Z2, actuating the nipper-rod or tongs r2; but as in case of certain classes of work it should be desired to dispense with the stopbar or nipperlgage a* and feed by t-he motion of the slide Z, then I form the forward end of the segmental lever 17 as shown in Fig. 8 or 9.

In Fig. 9 a cam-link, bi, is formed, in which the roller Z travels in the ordinary well-known manner; or, instead ofthecomplete link shown in Fig. 9, a partial link, 11',1nay be formed, as shown in Fig. 8. In this case it will be readily understood that the nipper-rod or tongs r2 will be moved to feed the nail-plate positively the amount of the cam projection n' for each piece cut of the nail-plate.

XVitli regard to the nipper-rod or tongs, it will be observed' that the serrations s are not carried close upto the collar t3, but that a blank space, t", is left. This is for the purpose that when the feed of the nai1-plate has been carried far enough the pawls Z:i and m3 are prevented from feeding farther on account of thereV not being any serrations for them'to act upon. The collar L3, also coming in contact with the plate]U5 or any other projection arrangedl for that purpose, also prevents the feed of the nail-plate being carried too far.

Vhat I claim, and wish to secure by Letters Patent, is as follows:

l. In combination with a. nail-cutting ma.- chine, the swinging frame a', partially-rotated cylinder c', segmental lever i', having seg- 'mental rack 7L', segment m, and cam projection n', slide Z2, having pawls Z3 and in, spring d3," and nipper-rod or tongs r, the whole substantially as described. Y

2. The combination, with a nail-cutting n1achine, of the vibrating lever l, operated by the nail-machine, as described, connecting-rod p', segmental lever il', connectingrod t', arm e', rock-shaft s, arm c2, and connecting-rod c2, with t-he framea, having its pivot-point t 1ocated as described, the whole substantially as described.

3. In combination with the slide Z2, operated as described, and having pawlsZ3 and ma, the rest g2, having gripping and friction heads IlO p2, ni pper-rod or tongs r, having serrations s",

and jaws Q3, thewhole constructed andarthe jaws g3, rod rserrations s3, blank space t4, and collar t3, combined Wit-h the slide Z2, l

pawls Z3 and m3, and plate f3, operated as described, the whole substantially as set forth.

6. The combination of the segmental lever Z', operated as described, having segment m', cam projection fn, slide Z2, spring d3, pawls Z3 and m3, and nipper-rod or tongs r2, the whole substantially as described.

RANDOLPH HERSEY.

Witnesses:Y

CHARLES G. G. SIMPsoN, J. H. MOGREGOR.

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