US308599A - Saw-gummer - Google Patents

Description

(No Model.)

L. FAWCETT.

SAW GUMMER.

Patented Dec. 2, 1884.

11v VENTOH Afforneys WITNESSES M W Nv PETERS. Pmwtmw mr. Wa-hin lm. n. c,

UNITED STATES PATENT OFFICE.

LINDLEY FAWCETT, OF CEDAR LAKE, MICHIGAN.

SAW-GUMMER.

SPECIFICATION forming part of Letters'Patent No. 308,599, dated December 2, 1884.

Application filed January 26, 1884. (No model.)

To all whom, it may concern.-

Be it known that I, LINDLEYFAWOETT, a citizen of the United States, residing at Cedar Lake, in the county of Montcalm and State of Michigan, have inventeda new and useful Saw-Gumrner, of which the following is a specification, reference being had to the accompanying drawings.

Figure 1 is a front elevation showing the framecarrying the emery-wheel raised. Fig. 2 is an end elevation taken from the righthand end. Fig. 3 is an end elevation taken from the left-hand end, and Fig. 4 is a plan view showing the adjustable head moved forward at its right-hand end.

This invention has relation to saW-gummers; and it consists in the construction and novel arrangement of parts, as will' be hereinafter fully described, and particularly pointed out in the claim appended.

Referring by letter to the accompanying drawings, a designates a common work-bench or filing-bench on which the machine is adjustably mounted, the bench havinga longitudinal slot, 12, for rendering the machine adjustable longitudinally thereon, bolts 0 c and thumb nuts (I being employed to secure the base-plate of the gummer-head thereon. The right-hand end of the gummer-head baseplate 6 is provided with a transverse slot, f, for adjusting this end of the base-plate, for a purpose hereinafter explained.

From the baseplate a standards 'f rise and form bearings for the driving-shaft g of the gummer-head. The driving-shaft gis a counter-shaft, and is driven from shafting overhead in the shop where the saw-gummer is to be used. Belting. from the counter-shaft 9 drives the shaft h, which forms the arbor for the emery-wheel i. The emery-wheel iand its attendant mechanism is carried in a frame articulated on the counter-shaft g. The front end of the frame 2" is provided with a handrail for manipulating it, and a guard, is, on this frame near the emery-wheel prevents the hand from coming in contact with the wheel.

Z designates an angle-arm, slotted at its rear end and secured to base-plate e by a screw, Z, and thumb-nut l. The front end of this angle-arml is vertical, and is provided with a bearing, m, and a set-screw, m, for adjustably securing a vertical rod, n, therein. This, together with a horizontal arm, 0, secured adjustably on the vertical rod n by a bearing, 0, and a set-screw, 0 forms the gage for regulating the depth and pitch of the teeth and preventing lateral deflection of the saw on its arbor. -The saw-arbor is adjustable vertically in a series of holes in a vertical leg of the bench-frame, so that saws of different diameters may be gummed and sharpened. The emery-wheel and the gage may be turned out of the way to permit a free use of the toolsin setting, swaging, &c., and by having the right-hand end of the head of the gummer slotted transversely the tooth can be dressed either flaring or plain by adjusting the gummer-head on the bench to the proper angle. The horizontal adjustment on the bench adapts the gummer to saws of different sizes in diameter,while the gage regulates the depth and pitch of the tooth.

The object of the invention is to provide a cheap and efficient machine for the purpose of dressing saws in such a manner that the teeth will be all at the same angle, pitch, and depth by simply adjusting the machine to the proper tially as described, for driving the same, of

the swinging gage composed of the angle-arm Z, having a bearing, m,at its outer vertical end, the vertical rod 02., the horizontal arm 0, and

set-screws for adjusting them in their bear- LINDLEY FAWoET'rI Witnesses:

DAN YOUNGS, WILLIAM H. GARDNER.

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