US368140A - emerson - Google Patents

Description

(No Model.) 7 Sheets-Sheet 1. L. C. EMERSON.

EYELETING MACHINE.

N0. 368,140. v Patented Aug. .9, 1887.

(No Model.) 7 Sheets-Sheet 2. L. C. EMERSON.

BYELETING'MACHINE.

No.l 368,140. Patented Aug. 9, 1887. t

W Il*I l l HUH!!! "IIN HUI! ,e nllillllllll IEW I QCM/' of@ (No Model.) v 7 Sheets-Sheet 3. L. C. EMERSON.

EYELETING MACHINE.

No. 368,140. Patented Aug. 9, 1887.

T. f ,fj' 1 la',

6 wmv l. mivf |'1 F'IE E EEE I 'UE DFI D@ www (No Model.)

L. C. EMERSON,

EYELETING MACHINE.

flHIIIIIIIIIIIIl HIIIIIIIIIIIIIIII),l g [Tm [Q Ill 'MGM' Ill Il IIIII 7 Sheets-Sheet 4.

atented Aug. 9, 1887.

(No Model.) 7 Sheets-Sheet 5. L. C. EMERSON.

EYELETING MACHINE.

No. 368,140. Patented Aug. 9, 1887.

(No Model.) 7 Sheets-Sheet 6.

L. C. EMERSON.

BYELETING MACHINE. Y No. 368,140. Patented Aug. 9, 1887.

(No Model.) 7 Sheets-Sheet 7. L. C. EMERSON.

EYELETING MACHINE.

UE. EF1. @w

UNITED STATES PATENT OFFICE.

LOENDER O. EMERSON, OF NORTH GRAFTON, MASSACHUSEiTS, ASSGNOR OF ONE-HALF `TO CHARLES H. NELSON, OF SAME PLACE.

EYELETING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 368,140, dated August 9, 1887.

Application filed December 2, i886. Serial Nn. 220,470. (No model.)

To @ZZ whom it may concern:

Be it known that l, LoENDEn C. EMERsoN,

a citizen of the United States, residing at North Grafton, in the county of forcester and State of Massachusetts, have invented certain new and useful Improvements in Eyeleting-Machines, of which the following` is a specification, reference being had therein to the accompanying d rawing.

My invention relates to that class o f eyeleting-machines which punch the holes for the eyelets, automatically feed the eyelets to the holes made Vf'or them and set them therein, and automatically feed the work along as the eyelets are set; and the principal object of my invention is to produce an improved machine of the class referred to, capable of being controlled by the operator, so that without stopping the machine the operation of the eyelet feeding and setting mechanism may be suspended at pleasure to punch holes in the work without setting eyelets therein. lf desired, the feed of the machine may be increased by the same movement by which the operation of the eyelet feeding and setting mechanism is suspended, and thus the holes in which no eyelets are set will be farther apart in the work than the eyeletcd holes. My machine is thus adapted for eyeleting that class of boot or shoe work having lacing-studs as well as eyelets, the holes punched for the lacing studs being preferably a greater distance apart than the eycleted holes.

In the class of machines to which my invention relates the woll; has heretofore been fed by a horizontally-moving finger, forming a part of the eyeletsetting mechanism; but this manner of feedingr the work is objectionable, particularly with thin goods, as the werk is more or less strained and stretched, and such machines are therefore not adapted for eyeleting thin textile fabrics. ln my improved machine l have provided an independent feeding mechanism7 consisting, preferably, of two rocking segments, between which the work is clamped in feeding, so that the thinnest fabries may be fed without injury. The length of the feed may be adjusted as may be desired, or the feed may be suspended altogether, to adapt the machine for cyeletin g calendars, &c., vwhere only a single eyelet is set in each piece of work, and when an automatic feeding of the work is not required.

In the drawings, Figures 1 and 2 are elevations from opposite sides of my improved ma 55 chine. Fig. 3 is a front end view thereof. Fig. 4 is a central longitudinal section through the lower part of the machine. Fig. 5 is a detail View ofthe cam for operating the slide or carriage carrying the punch-block and the 6o lower set. Fig. (5 is a crossscction through the upper part of the machine on the line 6 (i, Fig.

1, looking in the direction of the arrows adjacent to said line. Fig. 7. is a rear end view of the upper part of the machine, with the frame partly in section. Fig. 8 is an enlarged detail section of the feeding-finger and upper set. Fig. 9 is a detail perspective View of the lower or delivery end of the eyelet-chute. Fig. 10 is a detail perspective view of the feeding-sec- 7o tors. Fig. l1A is a sectional view of the bearing or hanger for the shaft of the upper feedingsector and adjacent parts. Fig. 12 is a detail sectional view showing the prime feed-operatingshaft, its actuating-cam, and adjacentparts. Figs. 13 and 1.4L illustrate a modified form of feeding mechanism. Figs. 1 and 2 are on a somewhat smaller scalc'thau the other figures excepting Fig. 8.

A denotes the frame of the machine, and B So the main or driving shaft, having a drivingpulley, I), mounted loosely thereon, but connected therewith by means of the spring-acted dog b', pivoted to a collar, 112,'faston said shaft, said dog being normally forced into yengage- S5 ment with a notch in a flange, b, of the wheel b by a coil-spring, b", seated in a recess in said collar. (See Fig. 4t.)

O is a rock-shaft mounted in the lower part of the frame A, and provided at one end with 9o a tripping-arm, c, adapted to disengagc the dog b from the notched flange of thc wheel I), said shaft having also an arm, c', which is to be connected with a suitable treadlc to operate the shaft C, for the purpose of disengaging the clutching-dog Z/from the wheel b, and thus stop the machine. This clutching mechanism is, however, of itself old and not of my invention.

Journaled in the lower part of the frame A, Ico in line with the drivinglshaft B, is a secondary shaft, D, having a clutch-connection with said erated from the driving-shaft B, while the eyelet feeding and setting mechanisms are opere.

ated from the secondary shaft D, so that when the shaft D is disconnected from the shaft B the operation of the eyelet mechanisms, which I willnow first describe, will be suspended.

E is a slide or carriage having dovetailed iianges e, by which it is guided in ways formed by the under cut plates a, secured to the front end of thelower part of the frame A, said slideor carriage havingastandard, E', through which slides vertically the bar e', carrying the setting-finger or Vlower set, e2. ,To the said standard is attached a post, 10, carrying the punch block 11. rlhe slide E is reciprocated horizontally by means of a rock-shaft, F, having at its rear end an ar1n,f, provided with a pin or roller engaging a cam-groove, g, in the disk G, secured to the shaft D, the said rockshaft F having at itsL forward end a slotted arm, f', engaging an adjustable bolt, c", attached to the slide E. By adjusting the bolt e3 so that it will be nearer to or farther from thevcenterof movement of the shaft F the throw of the slide E may be varied as desired.

To the sliding bar c is attached a collar, e, which is connected by a link or pitman, e5, with the crank-disk d at the forward end of the shaft D, so that as the said shaft rotates the said bar will be reciproeated vertically to canse the set carried thereby to cooperate with the upper set in setting the eyelets.

H is a rock-shaftjournaled in lugs or hangers va?, formed on the upper part of the frame l, A, said shaft having at its re'ar end an arm, h,

connected by a pitman, 7L', with an eccentric, H', carried by the shaft D. At the forward end of the'shaft His an arm, h1, connected by a link, h, with a bar, h, sliding vertically in bearings formed in flanges 'L' of a head, I, pivotally attached by a screw-bolt, i, to the `forward end of the upper part of the frame A. The sliding bar h carries the upper set, h4, which is in the present instance adjustably attached to the said bar by the fasteningscrew 71.5, the said set being guided by the lower flange of the head I, so that it will move steadily with the said head as the latter swings.`

J is a stationary eyelet-box having a stationary roadway or chute, j, down which the eyelets pass to the eyelet-feeding linger h, which reciprocates vertically in the upperset, h rIhe said finger 71. is provided nearits lower end with a friction-spring, h1, (see enlarged detail view, Fig. 8,) which serves to'retain the eyelets thereon while the said finger is movingfromthelower end ofthestationary eyein the swinging head I. Thus, as the upper set rises, the finger h6 will be protruded therefrom, owing to the contact of the upper end of its shank with the rod i2. 'Ihe swinging movement of thc head I will neXt bring the said finger over the delivery end of the chute j, and before the said head commences its return movement the bar h3 will have descended far enough to cause the said finger to take an eyelet from the lower end of the chute, and the continued movement of the said head brings the eyelet-finger and upper set over the hole in the work, into which the eyeletis inserted as the upper set and eyelet-nger descend, the lower set being at this time beneath saidy hole. The contact of the eyelet-nger with the lower set forces said finger up into the uppersct, Whereitisretained by the spring hs until again forced outward by the rod i2. The eyelet-chutej is provided atitslower end with a retaining-spring, j', which extends l tating-brush, operated in the usual manner Vfrom the arm 719 on the rock-shaft II, said arm being connected by a link, ji, tothe arm ofthe brushshaft. y

The swinging head I is operated in one direction by a rock-shaft, K, having at its forward end an arm, 7c, carrying a pin or roller engaging a grooved block, i# on the head I, or to a plate attached thereto. The shaft K is provided at its rear end with an arm, K', having a roller-stud, k2, which at proper intervals is engaged by a cam or tappet, It, secured to the shaft H. The return movements ofthe head I and of the rock-shaft K are effectedby a coilspring, L, attached to said head and to a block or projection, a5, ou the frame A. An adjustable screw-stop, a, tapped in the block a5, limits the return movements of the head I. To prevent the said head from overthrowing I also prefer to employ a stopscrew, al, tapped in a block or projection, as, on the frame A. The punch 12 is carried by avertically-reciprocating bar, I3, having bearings in the flanges of the swinging head I, the said punch being steadied by passing through the lower one of thc said fianges, as is the upper set, 7L". rIhe bar 13 is connected by a link, 14, with an arm, 15, on the forward end of a rockshaft, 16, the rear end, 17, of which is connected by a pitman, 18, with the strap 19 of an eccentric, 20, fast on the drivingshaft B, so that as the said shaft rotates the punch will be reciprocated to perform its work.

The feeding mechanism which I prefer to employ consists of two oscillating sectors, M and M', between which the work is clamped during the feeding movement, the upper sector rising to unclamp V the work when the sectors swing backward, the said sectors being slotted to embrace the work on both sides of the punching and eyeleting devices, which can work through the slots of the sectors.

IOO

The upper sector, M, is formed on an arm, m, of a stud or small rock-shaft, m,journaled in a hanger or bearing, o, carried by a vertically-movable bar, O, extending through the upper part of the frame A and having near its top a pin, o', engaged by lifting-lever Q. The shaft m is provided at its rear end with an arm, m, connected by a link, m, with an arm, n, of a rock-shaft, N, having at its rear a second arm, a', connected by a pitman, ai, with an arm, p, of a short rock-shaft or stud, P, having within the frame A an arm, p carry: ing a roller-stud engaging the grooved cam R on the driving-shaft B. The lower sector, M', is carried by the arm s of a rock-shaft, S, the forward end of which is journaled in a standard, T, to which is attached the work-plate t, the arm s on the rear end of said shaftS being connected by a link, 8"', with an arm, a3, on the rock-shaft N, from which the upper seetor, M, is operated, and thus the sectors will be caused to move in unison. -The lever Q, by which the bar O is lifted to raise the sector M and unclarnp the work, is connected at its rear end with the pitman 1S by a rod, q, having adjusting and set nuts q and g2, and the downward movements of the said bar and the parts supported thereby are effected by a spring, V, pressing on the bearing o, the latter being provided with a stud, o2, entering a hole in the frame A and serving to prevent torsional movement of the bar O.

The pitman a* is preferably made adjustable in length by being formed in two parts, the adjacent ends of which are threaded to tit within a right and left hand threaded sleeve, as, which may be turned to lengthen or shorten the said pitman. rlhe latter is jointed at its upper end to a loop, n, adapted to slide on the arm nef the rock-shaft N, the said loop being held between adj ust-able collars as, theposition of which on the arm a may be changed to vary the point of connection (through the loop a) of the pitman at with the said arm a to v ary the rocking movement of the said shaft N, and thus adjust the normal throw of the feedingsectors operated therefrom. The pitman n2 is also provided at its lower end with ajointed loop or collar, a, adapted to slide on the arm p of the stud or roekshaft P, the said loop a being connected by a link, w, with an arm, w", carried by a collar, lw, on a rock-shaft, \V, and the said shaft being provided with an ordinary forked arm, 102, engaging asliding collar, X, splincd t-o the driving shaft B. The eccentric ll', which is on the shaft D, is provided with a pin, 2l, adapted to fit a hole in the sliding collar X, so that the driving-shaft B and the secondary shaft D may be connected or disconnected by moving the said collar into or out of engagement with the said pin, the latter and the collar with the holeto receive said pin thus forming a clutch by which the shafts B and D may be coupled together. rlhe cellar w is provided with a second arm, w, which will in practice be connected with a suitable treadle to operate the clutch fork or arm wg.

As the loop a" is connected by the link w, arm w", and collar w with the rock-shaft XV the movement of thelatter in unclutching the secondary shaft D (from which the eyelet feed ing and setting mechanisms are operated) from the driving-shaft B will cause the said loop to slide outward on the arm of the prime feedoperating rock-shaft P, and thus a greater reciprocating movement willbe imparted to the pitman aL to give an increased rocking move ment to the shaft N,and also the rock-shaft S connected therewith, so that the movement of the rock-shaft XV in nnclutching or disconnecting the secondary shaft from the driving-shaft to suspend the operation of the eyelet feeding and setting mechanisms will also give au increased throw to the feeding-sectors, and thus space the non-eyeleted holes farther apart than the eyeleted ones.

The outward movement ofthe loop Wat the lower end of the pitman Mou the arm p of the rock'shaft P is limited by an adjustable stop, consisting in the present instance of a collar, p2, Fig. 2, held in place ou said arm by a setscrew.

'Vhen my machine is set in motion, its operation is as follows: Thepuneh l2, receiving its motion from the rock-shaft 15, operatively connected with the eccentric 2O in the driving-shaft ]3,first descends and makes a hole in the work, the punelrbloek l1 being at this moment beneath the punch. As the punch rises, the punch-block, carried by the slide or carriage ll, moves backward or to the right, Fig. 3, thus removing the punch-block from beneath the hole which has been made in the work and bringing the lower set, 6"', beneath the said hole. The punch as it rises is (owing to the swinging of the head f, in which it has vertical bearings) carried to the left, Fig.A 3, this movement of the said head bringing the descending upper set, 7L", in a vertical line with the hole in the material and the lower set, 6". During the down ward and forward movement of the upper set, h, the eyelet-feeding finger h carried thereby has taken an eyelet from the eyelet-chutej, and as theupper set continues i't-s downward movement {the lower set meanwhile rising) the eyelet is inserted in the hole made for it by the punch and properly set, the eyelet-feeding finger being forced within the set h during the setting operation and protruded therefrom, when the set again rises by the rod on the head l, as hereinbefore described. As the upper set rises, the return movement oftheswingingheadI carriesitback` ward (or to the right, Fig. 3,) thus bringing the punch to its first position,theslide or carriage E at the same time moving forward,(or to the left, Fig. 3,) to carry the lower set (which has meanwhile descended) away from beneath the punch and to bring the punch -block back again into operative position. After the two sets have been withdrawn from the work and before the punch again reaches it, the feeding sectors M and M, between which the work is now clamped, and which are operated by the IOO los

IIO

ISO

4 v fesant mechanism hereinbefore described, swing to feed the work forward (or to the left, Fig. 3,) and as the punch reaches the work the upper sector, M,is raised through the operation of the lifting-lever Q, to release the work, and while the work is thus unclamped the feedingscctors'are swung backward to their trst position.

The movements above described are repeated during the usual operation of the niachine in punching holes and setting eyelets therein; but when the proper number of eyeletshave been set iu a shoe-counter, and it is desired, without stopping the machine, to punch a series of holes for studs andto space the said holes farther apart than the eyeleted holes, the operator presses down 'on a treadle which is to be connected with the arming', rigidly connected with the clutch-operatingrockshaft W, to slide the collar X rearward, and thus'uncou'ple the secondaryshaft D,by which the eyelet feeding and setting mechanism, the sliding carriage E, and the swinging head I are operated, from the driving-shaft B, fromwhich the punching and feeding mechanisms receive their movements, and thus the latter mechanisms will continue their operation to make properly-spaced holes in which no eyelets will be inserted. `Owing to the Iconnection by thelink w of theloop n at the lower end of the feed-operating pitman n2 to the arm w, moving with the clutch-operating rock-shaft WV, the lower end of the said pitman will be moved outward relative to the arm j) of the prime yfeed-operating shaft P simultaneously with the uncoupling of the shafts D and B, to increase the feed when the holes in whichno eyelets are to be inserted are being punched, as hereinbefore described, this movement of the lowerend of the said pitman being reversed to restore the normal feed when the said shafts are again coupled together to resume the eyeleting operations.

It will be observed that the lower end of the eyelctchutej is above the work-plate t, and owing to the form of said chute the eyelets, when they reach the lower end thereof, have their fianged or finished ends upward, so that the eyeleting operation is performedwith the right or outer side of the work upward. This enables the operator to inspect the Work as the eyeleting and punching operations proceed and to sce if there are any bad places therein, and my machine will therefore be found more convenient in use than the combination eyeleting-machines heretofore extensively employed. The retaining-spiinghi, near the end of the cyelet-feeding finger 7L, is an'important feature of my -invention in carrying the eyelets from the stationary chute to the holes in the work punched for their reception and inserting them in the holes vfrom above the work. When the operation of the cyelet feeding and setting devices are sus' pended,the sliding movements of the carriage E and the swinging movements of the head I are also suspended, these movements belng imparted to the said slide and carriage from the rock-shafts F and K, operated from the secondary shaft D, as hereinbefore described, so that when the punching operation goes on Without the eyeleting operation the punchblock remains stationary beneath the punch, and the latter merely reciproeates vertically in the head I, which latter remains at rest until the eyeleting operation is resumed. l

If it be desired to punch holes alone or topunch eyelet-holcs in work where no feed is necessary, owing to the fact that only a single hole or eyelet is required in each piece, as in eyeleting calendars, Snc., the feeding devices may be disconnected from their operating mechanism, as by removing the pitman n2,- or the said pitman may be adjusted on the arm a so closely to the center of movement of the shaft N that little or no movement will be imparted to the said shaft, and thus the feedingsectors operated therefrom will be entirely or practically at rest. When the feed is thus suspended,the sector M may be raised so as to be clear of the work by an ordinary lifting-lever engaging the`bar O or the lever Q, and, if desired, the feed may be suspended simply by raising theV upper sector from the work and retaining it in such position; but power will be saved by disconnecting the rod n2.

By employing an independent feeding mechanism, or a feeding mechanism which operates independently of the eyelct-setting devices, my machine is adapted for setting eyelets in thin materials,which are more or less injured when fed by the setting devices,

IOO

as in the forms of eyeleting-machines now in ing of two feeding-wheels, M2 andMS,the shaft m of the upper wheel, M, being intermittingly rotated by the ratchct-wheel m", operated by the pawl m5, pivoted to the carrier m, operated from the rock-shaft `N through the link m and arm a, the lower wheel, M, rotating idly by the movement of the work between it and the upper wheel. These feeding-Wheels are in a certain sense the equivalents of the feeding-sectors M M', in that they adord two coincidently-moviug surfaces between which the work is clamped in feeding.

I donot, therefore, wish to be understood as limiting myinvention to the specific operating mechanisms hereinbefore described, as it is obvious that the details of my machine may be varied within the limits of mechanical skill without departing from the leading features Y chine is adapted for a much larger range of work than the old machines.

Having thus described my invention, I claim and desire to secure by Letters Patent- 1. In an eyeleting-machine, the combination, with the eyelet setting devices and a shaft with which they are operatively connected, of feeding appliances consisting of two moving parts between which the work is clamped in feeding, substantially as described, and a shaft separate from the aforesaid shaft with which the said feeding appliances are operatively connected.

2. In an eyeleting-maehine, the combination, with the punching and eyelet-setting devices and their operating mechanism, of an independent feed consisting of two swinging sectors between which the work is clamped in feeding.

3. In an eyclcting-maehine, the combination, with the punching and eyelet-setting devices, of a feeding mechanism consisting of two swinging sectors slotted to embrace the work n both sides of the line of the eyelets and to permit the said punching and setting devices to work between or inside of the work-clamping portions of the said feeding sectors.

4. In an eyeleting-machine, the combination, with punching and feeding devices and a driving-shaft with which they are operatively connected, of a secondary shaft, eyelet feeding and setting appliances operatively connected with the said secondary shaft, and a clutch for connecting and disconnecting said shafts.

5. In an eyeleting-machine, the combination, with a horizontally-reciprocating slide or carriage below the work-plate and the lower set and punch-block carried thereby, of a swinging head above the work-plate, and the vertically-reeiprocating upper set and punch and their carrying-bars guided inthe said head.

6. In an eyeleting-machine, the combination, with the upper and lower eyelet sets and an eyelet roadway or chute, of an eyelet-feeding finger movable lengthwise in one of the said sets, a friction-spring for holding said nger stationary in said set at intervals, and a rod for causing said finger to protrude from the set when the said finger is to take an eyelet from the said roadway or chute.

7. In an eyeleting-machine, the combination, with the work-plate and a stationary eyelet roadway or chute the delivery end of which is above said plate, of a swinging eyelet-feeding finger provided near its lower end with an eyelet-retaining spring.

8. In an eyeleting-niachinc, the combination, with the upper feeding-sector and the rock-shaft N,with which said sector is operatively connected, of the lower feeding-sector and its rock-shaft S, connected with the rockshaft N, whereby the said sectors are caused to move in unison in feeding the work.

9. The combination, with the upper feedingsector, M, its arm m, and the stud or rockshaft m', of the bearing o, the vertically-movable bar O, by which said bearing is carried, the spring V, the lifting-lever Q, for raising said sector at intervals, and a reciprocating device, as rod q, for operating said lever.

10. The combination, with the feeding-scctor M, its arm m, and the stud or rock-shaft m', 0f the vertically-movable bar O, and the bearing 0, carried by said bar and provided with the steadying-stud o, for preventing ltorsional movement ofthe bar O.

11. The combination, with the feeding-sectors M and M', and the rock-shafts N and S, operatively connected together and to the said sectors, of the prime feed-operating shaft or stud I, connected with the shaft N, the cam B, and driving-shaft B, to which the said cam is attached.

12. The combination, with the driving-shaft B, of the cam B, the stud or rock-shaft l? and its arms, the pitman a2 and its pivotcd loops, the three-armed rockshaft N, the stud or rock-shaft on] and its bearing, the link m, the sectors M and M', the rock-shaft S and its arms, and the link sconnecting the arms of the rockshafts N and S.

13. The combination, with the slide or carriage E, the lower set, its reciprocating carrying-bar, and the punch-block and its post, of the twoarmed rock -shaft F, the camgrooved disk by which the said shaft is operated, and the shaft D, by which the said disk is carried.

14. rIhe combination, with the punch, its carrying-bar and the head Lin which the latter is guided vertically, of the two-armed roekshaft 16, the links or pitmen 15 and 18, eccentric 2O and its strap, and the driving-shaft B.

15. The upper and lower sets and their carrying-bars, combined with the rock-shaft lI and its arms, the links or pitmen 1L h2, the eccentric II, the shaft D, having a crank at its forward end, and the link e5, connecting said crank to the reciprocating bar c, by which the lower set is carried.

16. The combination, with the pivotcd head I and the carrying-bars for the punch and upper set guided vertically therein, of the twoarmed rock-shaft K, for operating said head, the rear arm of the said shaft having a stud or roller, the rock-shaft II, having a cam or tappet, h, and the retraeting-spring L.

17. In an eyeleting-machine, the combination, with a driving-shaft and punching and feedingmechanisms operated thereby, of asecondary shaft, eyelet feeding and setting devices operated by said secondary shaft, a clutch connecting said Shafts, anda clutch-operating dcvice connected with the feeding mechanism, whereby when the said clutch is nncoupled to disconnect said shafts and suspend the operation of the eyelet Vfeeding and set-ting devices the feed will be increased.

18. The combination, with the driving-shaft B and the punching and feeding mechanisms operated thereby, of the secondary shaft D, the eyelet feeding and setting appliances operated by said shaft D, the clutch connecting said shafts, the clutch-operating shaft XV, its

IOO

arms w2 and 104, the feed-operating stud or shaft P, :its arm p, a sliding loop or collar thereon, the link w, and the pitmen n2, forming a part of the said feeding mechanism and to which said collar is connected, whereby when the clutch is uncoupled to disconnect the secondary shaft from the driving-shaft the said loop or collar will be moved outward on the said arm to increase the feed of the work.

19. The combination, with feeding devices and the feed-operating rock-shaft N, connected therewith and having an arm, n', of the ad- LOENDER C. EMERSON.

Witnesses:

HENRY E. H11 L, JOHN F. CRowELL.

Images