US332215A - Machine for finishing ax-polls - Google Patents

Description

(Nb Model.) 3 Sheets-Sheet 1.

T. RYAN.

4 MACHINE FOR FINISHING AX POLLS.

No. 332,215. Patented Dec. 8, 1885.

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(No Model.) 3 Sheets-Sheet 2.

T. RYAN. MACHINE FOR PINIsfiING AX ROLLS. No. 332,215. Patented Dec. 8, 1885.

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(No Model.) 3 SheetsSheet 3. T. RYAN.

MAGHINE FOR FINISHING AX POLLS.

No. 332,215. Patented Dec. 8, 1885.

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A TTO R N EY UNITED STATES PATENT Orricn.

THOMAS RYAN, OF GOHOES, NEW YORK.

MACHINE FOR FINISHING AX-POLLS.

SPECIFICATION forming part of Letters Patent No. 332,215, dated December 8, 1885.

Application filed April 14, 1885. Serial No. 162,237. (No model.)

tion of the invention, that will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Similar letters refer to similar parts in the several figures therein.

My invention relates to improvements in arc-machines.

The object of my invention is to provide a machine for finishing aX-polls, adapted to give them better form and smoother surface, to true up the eye and shape the head.

Figure 1 of the drawings is a plan view of my improved machine, with the cross-beam and yielding bearing removed. Fig. 2 is a front elevation of the machine and section. Fig. 3 is a vertical section.

The dies A A are secured to the rotary shafts B B. the latter being connected by gear-wheels H H at one end, and one of said shafts pro- 0 jected at the other end to receive any desired driving-gear. One of the wheels H is connected by crank and link J with the reciprocating frame I, to travel back and forth between the rolls 0, preferably four in number. The frame is provided at one end with ahinged section, b, hinged at d, adapted to swing up, as shown by dotted lines in Fig. 3. Section b is provided with a depressed seat, i, adapted to receive an air-supporting mandrel, c. A similar and oppositely-located seat may be provided in the frame-section b.

When the frame 1 has traveled to the position shown in Figs. 1 and 3, the hinged section b is easily swung up to the position shown by dotted lines in Fig. 3. The air-supporting mandrel 0 having first been inserted in the eye of the ax D, it is then easily inserted between the sections in seat i, and the upper section closed down upon it to hold the ax in the position shown in Fig. 1. The frame then advances to carry the ax toward the dies A, be-

ing impelled by the link J. The rack g, attached to the frame, imparts a rotary motion to the rollers 0 through pinions on their ends. The collars a on the rolls serve as guides for the frame, and the rollers themselves keep the sections b b of the frame firmly clasped upon the aX-mandrel, so that the air is carried firmly against the dies A. The dies are eccentric in general form, and shaped to give the desired finished form to the axes. The aX-eye is also made true and coincident in plane with the bit of the air, the frame and dies being securely held in parallel planes.

One or both of the rotary die-supporting shafts B having their end bearings in the uprights K K, are provided with a central spring-controlled bearing, m, resting upon the shaft, and having a guiding-stem, P, adapted to slide in the supporting-frame of the machine, and provided with the controllingspring S.

It sometimes happens that the eye of the unfinished aX-poll is very much to one side, so that the metal on one side of the eye is very much thicker than on the other side, and if the shaft B were wholly immovable the axpoll would be deformed or the mandrel would break; but if the die-supporting shaft is allowed to yield, when the pressure upon the die has reached the limit of useful results the axpoll travels past the dies without injury, and is given the desired shape, except that the metal on one side of the eye is left a little thicker than that on the opposite side. The surplus metal is easily and quickly ground off, leaving the various parts of the ax true and uniform.

The spring S is sufficiently strong to even the thickness of metal in most ax-polls before yielding, and the stops a, just above the section q of the journal-box, prevent the die-support ing shaft from being raised beyond a fixed limit, which may be varied by turning up or down the stops a, threaded, as shown by dotted lines in Fig. 2. A similar yielding springcontrolled bearing-block may be provided for the other die-supporting shaft.

G is an adjustable abutment. As the axhead is generally a little thicker in some parts where it enters the dies than the desired form, it is drawn out slightly by the dies, and without a supporting-abutment the face of the axhead would be left rough and uneven, but with the smooth-faced abutment G, which may be plane or of any desired form, the face of the ax-head is left smooth, of a form corresponding with the abutment-face. The dies are of the proper length to allow the heel of the die to come to the abutment without touching it. The abutment is attached to or integral with the sliding frame G, adapted to slide in side ways, h, in the frame b.

After passing through the dies the ax will be pressed very tightly against the abutment, and it may be loosened by sliding the abutment and its frame back from the ax, which is done by turning the wheel or handle f, fixed upon the threaded stem, workingin a threaded nut in the frame, as shown in Figs. 1 and 3.

By means of the wheel and threaded stcm the abutment can be forced firmly against the ax-head before it enters the dies, thus relieving the mandrel of very much of the strain that it would otherwise sustain in forcing the ax between the dies. The frame is given a constant reciprocating motion traveling to and from the dies, and, by removing a finished axand substituting an unfinished one as the frame comes from the dies, an ax is finished at each revolution of the dies.

The abutment prevents the head and eye of the ax from drawing, and serves to fix and render uniform the distance from the eye to the face of the head.

What I claim as new, and desire to secure by Letters Patent, is

1. In an a l-shaping machine, a sectional reciprocating frame adapted to receive and carry an ax-supporting mandrel, in combination with frame guiding and locking rollers, and revoluble shaping-dies, substantially as described, and for the purposes set forth.

2. In an ax-shaping machine, a reciprocating arc-supporting frame havingthereon an adjustable abutment, in combination with revoluble ax-finishing dies, substantially as and for the purposes set forth.

3. The combination, with the rolls 0, of the frame I, and mechanism adapted to carry it back and forth between said rolls, as and for the purpose set forth.

4. The combination, with the frame I, of the crank and link J, the gear H, and the shaftsB B, as and for the purpose specified.

5. The frame I, constructed with hinged section b and seat i, in combination with an arc-supporting mandrel, e, as shown and described.

6. The frame I, carrying rack g, in combination with rolls 0, having pinions and collars, as and for the purpose specified.

In testimony whereof I have hereunto set my hand this 28th day of March, 1885.

THOMAS RYAN.

' WVitnesses:

GEO. A. MOSHER, CHAs. L. ALDEN.

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