US683415A - Machine for nutting and facing wagon-skeins. - Google Patents

Description

No. 683,4!5. Patented Sept; 24, l90l. A. L. WARNER. MACHINE FOR NUTT ING AND FACING WAGON SKEINS (Application filed Apr. 6, 1901.)

2 Sheets-Sheet I.

(No Model.)

MTTs'sEs No. 683,4I5. atentad Sept. 24, l90l.

, P L. WARNER. MACHINE FOR N T G AND FACING WAGON SKEINS.

(A cation flied Apr. 5, 1901.) OOOOOOOO Y 2 Sheets-Sheet 2.

UNITED STATES PATENT OFFICE.

ARTHUR L. WARNER, OF CARPENTERSVILLE, ILLINOIS.

MACHINE FOR NUTTING AND FACING WAGON-SKEINS.

SPECIFICATION forming part of Letters Patent No. 683,415, dated September 24, 1901. Application filed April 5, 1901. Serial No. 54,470. on. model.)

To aZZ 71071107 it may concern.-

Be it known that I, ARTHUR L. WARNER, a citizen of the United States, residing at Carpentersville, in the county of Kane and State of Illinois, have invented certain new and use-' ful Improvements in Machines for Nutting and Facing Wagon-Skeins, of which the following is a specification.

My invention relates to improvements in machines for attaching nuts to vehicle skeins and to like articles and for simultaneously facing the nuts and the skeins. I

The object of my invention is to provide such a machine which shall be simple in operation and shall quickly and effectively screw nuts upon skeins and like articles, but without jamming them, so as to make them difficult of removal.

Another object of my invention is to provide such a machine in which the face of the nut and the end of the skein upon which it is screwed may be faced as a part of the same operation in which the nut is screwed onto the skein.

Another object of my invention is to pro vide a cutter-head for such a machine which shall be so constructed that the cutters shall first engage the nut for the purpose of driving it home and shall then face the nut and the end of the skein.

A further object of my invention is to provide a simple and effective means for securing the cutters in the cutter-head and a still further object of my invention is to provide a cutter-head for such a machine with a yielding center-pin for engaging the hollow ends of skeins and like articles having openings of varying diameters in such a mannerthat regardless of the diameter of the opening engaging said pin the cutters will always face the end of the skein up to such central opening.

These and such other objects as may hereinafter appear are attained by the devices shown in the accompanying drawings, in which- Figure 1 is an elevation, partly in section, of a machine embodying several of my improvements. Fig. 2 is an end elevation of the upper half of the machine shown in Fig. 1. Fig. 3 is a plan View of my improved cutter-head. Fig. 4 is a detail, partly in section,

parts in the several figures of' the drawings. 1

Referring by letter to the accompanying drawings, A indicates a base containing a vertical cylindrical opening, within which reciprocates vertically a stem or standard B,

which carries at its upper end a bed-plate or table 0. The stem B and bed-plate G are reciprocated in the usual manner by the use of a paWl-and-ratchet or other suitable device. Mounted upon the base A is the frame D, which is provided with an outwardly-extending lower arm E and a similar upper arm F. Each of the arms E F is provided with a vertical cylindrical opening, which serves to guide a spindle G, which is mounted and reciprocated therein.

His a friction-pulley rigidly attached to the spindle G and normally resting upon and supported by the arm E.

I is a power-pulley provided with a depending annular fiange i, which surrounds the friction-pulley H. The opposing surfaces of the outer periphery of the pulley H and the inner periphery of the flange t' are correspondingly beveled vertically, and the greatest diameter of the pulley II is somewhat larger than the distance between the opposportion. It will thus be seen that the pulleys II and I are adapted to be wedged into tight frictional contact.

The pulley I is loosely mounted upon the spindle G and is supported by a coil-spring J, which surrounds the spindle G andis seated upon an annular shoulder j at the bottom of a chamber or recess it within the pulley H. The pulley I receives power from a belt driven by any suitable source of power, said belt first passing over an adjustable tension device comprising the idler-pulleys K, mounted upon ashaft It, which is journaled within a bearing Z upon a bracket L, pivotally mounted at its lower end upon a lug upon the frame D. By means of a screw M, which is screwthreaded through the bracket L and bears at its inner end against the frame D, the idlers ing inner faces of the flange 't' at its widest K may be swung back and forth and the tension upon the drive-belt be thereby increased or diminished, as occasion may demand.

As shown in Fig. 1, a chuck N is removably mounted upon the lower end of the spindle G, the recess within the lower face of this chuck being of a shape to snugly receive the nuts which are to be screwed on the skeins or like articles. Within the upper face of the table 0 are recesses c for loosely receiving lugs 0, formed upon the under face of a form 0. Upon the upper face of the form 0 is a boss 0 of a shape to non-rotatively engage an opening in the inner end of the skein or like article upon which a nut is to be screwed. Of course the contour of these bosses upon the form 0 will be varied to fit the different shapes of the openings in the skeins or like articles to which the nuts are to be applied.

With the machine constructed as shown in Fig. 1 the operation of the device is as follows: Taking, say, a wagon-skein, the nut to be applied is first started on the thread on the end of the skein. This work can be done in quantities by unskilled labor and with great rapidity, it being only necessary to start the nut sufficiently to have it engage the thread on the skein. The skein is then set upon the table 0, the boss 0 engaging the inner end of the skein and holding the same against rotation. The table is then elevated until the nut on the end of the skein engages the opening in the chuck N. The further elevation of the table will now lift the spindle G and the pulley H, which is rigidly attached thereto, against the tension of the spring J until the opposing faces of the pulley H and of the flange t' of the pulley I are forced into frictional contact, whereupon the drivepulley I, which is constantly rotating, will rotate the friction-pulley H, the spindle G, and the chuck N, thereby driving the nut home upon the end of the skein. The further rotation of the nut to the injury of the nut or skein is prevented by the yielding frictional contact between the pulleys H and I, whereby in view of the constant tension of the spring J, which tends to separate these pulleys, the pulleyI will slip upon the pulley II when the rotation of the pulley H and the spindle G meets with any considerable resistance. This yielding power transmission is further provided for by the tension-adjustment device previously described, which provides a range of adjustment whereby the tension of the belt around the pulley I may be reduced to a point where it isonly enough to keep the belt from slipping when the pulley I is running idle. By this means the nuts may be driven down to any tension desired.

The foregoing description shows my improved machine in its simplest form. In its preferred form the machine is constructed and operated in exactly the same manner as previously described, except that I substitute the cutter-head P for the chuck N. The construction of this cutter-head is shown in Figs.

2 to 6, inclusive. In using this cutter-head with my machine I provide a central cylindrical recess g within the lower end of the spindle G. Upon the spindle is mounted the cutter head P, within which is centrally mounted the spring-actuated guide-pin Q, which reciprecates vertically within the cutter-head Pand spindle G. R indicates cutters seated within transverse slots 0 in the face of the cutter-head P. As shown in Fig. 5, the depth of these slots is preferably about onehalf the height of the cutters. Passing through the cutter-head transversely of the slots r are the cutter-clamping bolts S, into which are cut the transverse notches s of somewhat greater width than the thickness of the cutters R. Mounted upon the screwthreaded ends of the bolts S are nuts T, which bear against shoulders 6 upon the vertical face of the cutter-head P. The guide-pin Q is provided with an inwardly-extending guidestem q, the base of which is surrounded by a shoulder u, against which abuts one end of the spring U, which surrounds the stem q, the other end of said spring being seated against the bottom of the recess g in the end of the spindle G. The pin Q is further pro vided with vertical grooves V, which loosely receive the tapered ends of the cutters R.

The cutter-head and its related parts are assembled as follows: The bolts S are seated transverely within the cutter-head, so that the slots sin the clamping-bolts shall substantially register with the slots 1 in the face of the cutter-head. The nuts T are then loosely turned on the threaded ends of the bolts S. The guide-pin Q is now inserted within the central opening through the cuttor-head, and the cutters R are adjusted so that their tapered ends fit within the slots V in the pin Q, so that they approximately, but loosely, engage the bottoms of these slots. The nut T being now tightened, the cutters are securely clamped within the cutter-head between the opposing faces of the slots 8 in the clamping bolts and the slots 1 in the cutter-head, while-the ends of the cutters, because of their engagement with the slots V, prevent the pin Q from dropping out of the cutter-head. The spring U is now fitted over the stem q, and the cutter-head is fitted over the end of the spindle G. As the upper end of the spring U is seated against the bottom of the recess gin the spindle G, the spring is slightly compressed and forces the pin Q downwardly through the cutter-head until it is stopped by the cutters B. At this point the cutter-head is securely and rigidly attached to the spindle G in any suitable manner.

With the cutter-head P, constructed as described, mounted upon the spindle G the op eration of the machine is as follows: A skein with a nut started upon the upper end thereof having been seated upon the table 0 in the manner before described, the table is reciprocated vertically until the tapered end of the pin Q, passing through the central opening in the nut, engages the central opening in the skein. As this pin is tapered and as the central openings in the skeins and similar castings are roughly cast and so vary somewhat in diameter, the skeins will engage the pin Q at difierent points along its length, the tapered form of the pin adapting it toengage various sized openings, thereby serving'to hold the nut and skein centrally with reference to the cutter-head under all conditions. The further elevation of the table C will now carry the pin Q upward against the tension of the spring U until the upper surface of the nut engages the cutters.R. The lifting of the table 0 being new continued, the cutter-head P, the spindle G, and pulley H will be elevated against the tension of the spring J until the pulley H is brought in frictional contact with the rotating power-pulley I, whereupon'the pulley H, the spindle G, and the cutter-head P will be rotated, and the cutters R engaging the upper surface of the nut and rotating the nut will drive it home upon the skein. As the end of the skein comes through the central opening in the nut, the skein being held against rotation, as before noted, the cutters R will face the end of the skein, and when the nut is driven home and is held against further rotation the continued rotation of the cutter-head will cause the cutters R to also face the nut. Owing to the fact that the inner ends of the cutters B are seated within the channels or grooves V within the pin Q, the cutters R will present a continuous cutting-surface from the surface of the pin Q outwardly regardless of how far the pin Q may have been pushed up within the cutter-head P and the spindle G, and as the tapered surface of the pin Q engages that edge of the face of the skein which surrounds the central opening therein my construction insures having the cutters engage and face the entire face of the skein and nut simultaneously regardless of the point at which the skein engages the guide-pin Q.

So far as I know it has been necessary heretofore to perform several operations with different workmen in different machines to accomplish the result of driving nuts home on a skein or axle and facing the same, while with my machine I accomplish in one opera tion what has heretofore required several operations, and I provide a machine which is so far automatic that little or no skilled labor is required, fewer workmen are needed, and the work is accomplished in much less time than with the methods and devices heretofore in use.

Obviously as a matter of shop convenience and otherwise my invention may be used in various modified forms-as, for instance, the

cutter-head may be held stationary and the skein rotated or the skein may be rotated in one direction and the cutter-head in the opposite direction or the skein and cutter-head may both be rotated in the same direction, but with differing speeds, and table 0 may be made stationary and the cutter-head reciprocated vertically; but all such modifications come within the spirit of my invention and are contemplated thereby so long as the parts move with relation to each other in substantially the manner described or in any manner equivalent thereto to accomplish the results desired. So, likewise, it is immaterial whether the guide-pin Q be grooved on its opposite faces, as shown, so as to receive the ends of the cutter-bars, or whether it be otherwise cut away on such opposite faces, so long as such faces are so formed that the opposing ends of the cutter-bars need not be separated by a distance greater than the di ameter of the smallest opening in the end of the skein which said guide-pin is intended to engage.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a machine of the class described, the combination with a cutter-head of means for rotating said cutter-head, means upon said cutter-head for first rotating and then facing a nut and a tapered guide on said cutterhead, said guide having a vertically-cutaway portion to receive an end of said nut rotating and facing means, substantially as described. v

2. In a machine for nutting and facing wagon-skeins and the like, the combination with a cutter head, of a central tapered guide-pin yieldingly mounted within said outter -head, a pair of cutters mounted upon said cutter-head, vertical grooves upon the face of said guide-pin, constructed to receive one end of each of said cutters, and means for rotating said cutter-head, substantially as described.

3. In a machine for nutting and facing wagon-skeins and the like, the combination of a cutter-head, means upon said cutterhead for engaging the face of a nut, screwing the same home and then facing the same,

means for rotating said cutter-head, and

means for non-rotatively supporting a wagon skein and for raising the same until the screwthreaded end thereof, with a nut mounted thereon, is brought in contact with said outter-head, substantially as and for the purpose described.

4. In a machine of the class described, the

combination with a cutter-head, having slots within the face thereof, of clamping-bolts mounted in said cutter-head transversely of whereby said nut is first screwed upon said skein and is then faced," substantially as described. g

5. In a machine of the class described, the combination with a cutter-head, of a tapered guide on said cutter-head, means engaging said guide and mounted upon said cutterhead for engaging and then facing a nut, means for holding a nut against said nut engaging and facing means, and means for caus- :6 ing a relative rotation between the cutterhead and the nut to be faced, substantially as described.

ARTHUR L. WARNER.

WVitnessesi V M. E. SHIELDS, O. R. BARNETT;

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