US728958A - Saw-set. - Google Patents

Description

No. 728,958. Q PATENTBD MAY 26, 1903. G. MORRILL, DEGD.

S. O. MOERILL, EXEOUTRIX. v

SAW SET.

APPLICATION nun mm 4, 1902.

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H0 MODEL.

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WITNESSES: Chadd? ZZ/NVENTOR.

.fleaeas r h Q lggriill Lam Z @ML' V A TTOHNEY UNTThn STATES Patented May 26, 1903.

PATENT @rricn.

SARAH C. HORRILL, OF NEW YORK, N. Y., EXEGUTRIX OF CHARLES MORRILL, DECEASED.

SAW-SET.

SPECIFICATION forming part Of Letters Patent No. 728,958, dated May 26, 1903.

Application filed June 4, 1902.

T0 (LZZ whom it may concern:

Be it known that CHARLES MoRRILL, deceased, late of the city of New York, borough of Manhattan, and State of New York, did invent certain new and useful Improvements in Saw-Sets, of which the following is a specification.

This invention relates to a rotative eccentric gage, a guide-plane, and a specially-arranged rotary anvil for saw-sets, all of which will be fully described hereinafter.

The invention consists of a rotative anvil contained within a depressed seat, the latter integral with the head and a guide-plane thereof, the axis of the anvil arranged perpendicularly to the axis of a movable setting device and working in conjunction with an eccentrically-rotative gage mounted upon the body of the saw-set.

In the drawings, Figure 1 represents a side elevation of a saw-set, showing the head and a portion of the stock in section. Fig. 2 is an inverted plan view of the rotative eccentrio gage. Fig. 3 is a plan view of the head of the saw-set, a portion of the stock being broken away. Fig. 4 is a detail section of the head, showinga modified arrangement of rotative eccentric gage. Fig. 4" represents an end View of the head of the saw-set with a portion thereof broken away and having the anvil removed, thereby showing the depressed anvil-seat and the ends of the guideplane extending from either side thereof. Figs. 5, 6, and 7 are modified forms of the eccentric gage.

Similar letters refer to similar parts throughout the drawings, in whicha represents the stock of the saw-set, and b represents the head of the saw-set, the depending portion 0 thereof forming, as it does, the depressed anvil-seat d and saw-guide plane e. To the underneath of the forward portion of the stock a, is properly secured the rotative eccentric gage f.

It is not necessary to dwell upon the operation of the rotary anvil g, as this particular feature connected herewith is well known in the state of the art. It will be obvious that when the rotary anvil shall have been arranged as herein shown the saw-blade when Serial No. 110,215. (No model.)

operated upon will be in tangential contact with the perimeter of the anvil. To prevent the saw-blade from swaying backward and forward while setting the teeth thereof, the head I) of the saw-set is provided with the guide-plane e, with which the broad side of the saw-blade engages, thus insuring and maintaining the steadiness required. The eccentric gagef is adapted to counteract the backward thrust of the saw-blade whenever the plunger shall have been brought to play upon the tooth. It will be obvious that many forms of eccentric gages may be incorporatedsuch, for instance, as those shown in Figs. 4, 5, 6, and 7.

In Fig. 4c is shown the eccentric gagefarranged at an angle, thus enabling the operator to set the teeth of band or jig saws as well as the ordinary handsaw. In Fig. 5 is shown the eccentric gage polygonal form.

The important feature of the polygonal or circular shaped rotatively-mounted eccentric gage will be indispensable in a tool of this character, for it will be observed that in many cases the operator will be compelled to set the teeth of his saw in order that it may perform its function consistent with the character of the wood to be operated upon. In order to set the teeth of the saw properly, it will be necessary to adjust the eccentric gage so as to regulate the back thrust of the blade, and thereby giving the proper set to the teeth when the plunger shall have been brought forward.

The operator must not lose sight of the fact that when Wet, green, or soft wood is to be operated upon the set of the teeth will of course be deeper than they would have to be it hard wood is to be operated upon, and in order that the operator should not err in judging the exact position of the eccentric gage each side of the polygon or portion of its circumference of the eccentric gages ff ff will be indicated in any manner desirable. With a saw thus equipped any inexperienced mechanic could easily and properly adjust the gage without depending upon his judgment. It will therefore be observed that it will not require the hand of the skilled mechanic to operate this tool properly and scientifically, thus obviating the objectionable featuresof saw-sets heretofore made.

The guide-plane herein referred to may be used in connection with any form of anvil. I therefore do not confine myself to the exact form of anvil in connection with which the guide-plane may be used.

It is known that rotative anvils have heretofore been used in connection with saw-sets and having their axis arranged parallel and oblique to the movable setting device; but in all saw-sets heretofore made there does not appear suflicient surface for the saw to rest against when setting the teeth thereof. To obviate this objection, the head of the sawset is provided with the guide-plane, thus preventing the saw-blade from tilting when setting the teeth, as it does when sufficient bearing-surface is not provided therefor. It is also known that eccentric gages have heretofore been used in connection with various devices; but it is not known that they have ever before been claimed in combination with a saw-set, as herein shown.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is-

1. In a saw-set the combination consisting of a movable setting device the rotary concentric anvil provided with an annular beveled anvil face, the axis of said anvil arranged perpendicularly to the axis of said movable setting device, the depressed seat adapted to receive said anvil and the guide integral with said depressed anvil-seat sub stantially as described.

2. In a saw-set the combination consisting of the rotary anvil, the depressed anvil-seat, the guide-plane, the rotatively-mounted eccentric gage and movable setting device substantially as shown and described.

Signed at New York city, in the borough of Manhattan and State of New York, this 29th day of May, 1902.

SARAH C. MORRILL, Ewecutria: of Charles lllorm'll, deceased.

Witnesses:

WM. 0. MORRILL, M. E. CARMIOHAEL.

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