US744383A - Saw-set. - Google Patents

Description

No. 744,383. PATENTED NOV. 17, 1903.

Y W. G. MORRILL.

SAW SET.

APPLIOATION IILED JUNE 15, 1903.

N0 MODEL.

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UNITED STATES Patented November 1'7, 1903.

WILLIAM C. MORRILL,

SAW-

OF NEW YORK, N. Y.

SET.

SPECIFICATION formingpart of Letters Patent No. 744,383, dated November 17, 1903.

Application filed June 15, 1903.

To all whom it may concern.-

Be it known that I, WILLIAM C. MORRILL, a citizen of the United States, residing in the borough of Manhattan, city of New York, and State of New York, have invented certain new and useful Improvements in Saw- Sets, of which the following is a specification.

The invention relates to improvements in that class of saw-sets having a rotary anvil mountedupon the frame or body thereof, all of which will be fully described hereinafter.

The invention consists of the structure set forth in the appended claims.

In the drawings, Figure 1 represents a side elevation of a saw-set, having the head and a portion of the frame shown in section. Fig. 2 represents a face view of the polygonalshaped anvil detached. Fig. 3 represents a modified form of the locking mechanism for the saw-gage screw or slide. Figs. 4 and 5 also represent modifications of the saw-gage and locking device. Fig. 6 represents a side elevation of a saw-set, having the head and a portion of the frame shown in section. In this View is shown the saw-gage-locking device desirable.

Similar characters refer to similar parts throughout the drawings, in whicha represents the stock or frame.

6 is the rotary anvil, mounted eccentrically upon the head 0.

The anvil b is provided with the concentrically-arranged beveled anvil-face d, as shown, and may be rotated in the usual way.

The frame a is provided with the depend ing lug e, having the spring-slit f made therein for the purpose of holding or locking the sawgage screw 9 when it shall have been adjusted to its proper position. In this instance the portions e e are pressed together when tappingthe screw-thread, thus locking the saw-gage screw in a manner that will enable it to resist friction of the saw-blade.

In Fig. 3 the locking device for the sawgage screw 9 is composed of the jam-nut 9 located upon the screw between the depending lugs e 6 In Fig. 4. the saw-gage device is composed of the slide g. The forward end of the lat- Serial No. 161,411. (No model-l ter extends upwardly and is bifurcated,thereby forming two prongs, each of which terminates in a horizontal toe i.

In Fig. 6 the gage-screw is shown as having a locking-spring 3 working in conjunction therewith. It will be obvious that before the gage-screw 9 shall have been placed in position the spring will have assumed-the position shown by the dotted line 5. When desirous of mounting the gage-screw g, the spring is pressed against the face of the lug, then the gage-screw is inserted into the corresponding tap, and the edge of the circular perforation of the spring fits into the threads of the screw and by the natural tendency of the spring to assume its normal position, as shown by the dotted line 5, will of course perform the function partially of a check-nut.

I am aware that rotary anvils provided with an eccentric beveled anvil-face and mounted concentrically upon the frame of the tool have heretofore been made. It will be obvious that the process of manufacture of this particular style of anvil is objectionable for the reason that it is diflicult to produce the eccentric beveled anvils in quantities without deviating from the original gage, thus enhancing the expense of production thereof.

The sliding saw-gage in this case is of course constructed diiferent from those heretofore made and preferably has the horizontal toe in order that the tangential point of resistance to the backward thrust of the saw-blade will be near the initial point of the action when the plunger shall have spent its forward movement, thus enabling the operator to set the teeth of narrow band-saws by the resistance of the horizontal toe to the backward thrust of the saw-blade. the horizontal too, as shown, the forward portion of the sliding saw-gage may be extended forward, so that the entire surface of the front of the sliding saw-gage will be in contact with the saw-blade.

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

1. In a saw-set, a rotary eccentrically-pivoted anvil provided with a concentric beveled In lieu of having anvil-face in combination with a setting device to cooperate with the said beveled face, substantially as shown and described.

2. In a saw-set, the combination of an anvil, a setting device movable toward the anvil, a bifurcated saw-gage having its prongs straddling the setting device said prongs provided with portions arranged to contact with the saw-blades when in position for the setting of the teeth adjacent to the contact area of the IO setting device.

In testimony whereof I have hereunto signed my name, in the presence of the subscribing witnesses, this 13th day of June; 1903.

WILLIAM C. MORRILL.

Witnesses:

A. GEERY, H. A. SACKETT.

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