US355692A - Caeleton chaeles haeeis - Google Patents

Description

(No Model.)

-0. 0. HARRIS.

SAW SET.

No. 355,692. Patented Jamll, 1887.

' to merely set the points of the teeth.

UNrrED 'STATES PATENT UEFICE.

cARLEToN CHARLES HARRIS, on DENVER, COLORADO'.

sAw-s ET.

SPECXFICATION forming part of Letters Patent No. 355,692, dated January 11, 1887.

V` Application filed October 2:2, 1886. Serial No. 216,954. (No model.)

To al whom it may concern:

Be it known that I, CARLEToN CHARLES HARRIS, of Denver, Colorado, have-invented an Improved Saw-Set, of which thefollowi'ng is a specification.

The object of my invention is to provide a simple and cheap instrument with which saws may be set without breaking or otherwise injuring the teeth. Saw-makers and woodworking mechanics claim that the most desirable way to set a saw to obtain the best results is I attain this by the peculiar construction of the hammers and anvls.

Figure 1 shows a detailed View, in perspective, of the instrument. Fig. 2 is a sectional View; Fig. 3, a View of the cam F, with in dicator; Fig. 4, an end view of the four different hammers on the plunger A, and Fig. 5 a sectional view of the anvil.

Similar letters refer to similar parts throughout the different views.

The bed-plate H is provided with a sleeve, L, which acts as a guide for the plunger A, and'is further provided with reversed-V-bearings, upon which the table D rests. The plunger A vis provided with four differentsized hammers, and is made of hardened steel, and is constructed as shown in Figs. 1, 2, and 4. The hammers on the plunger are numbered 1, 2, 3, and 4. n

rlhe anvil B is formed with four beveled edges,.the bevels corresponding in width to those on the hammers, and are also numbered 1, 2, 3, and 4. The anvil is fastened to the bed-plate H by the screw J, and is held iirmlyv in place by bearing on flat surfaces on the sleeve L, and a shoulder on the bed-plate at a, on the bed-plate H. The anvil B formsy a guide to the plunger A by pressing against the square surfaces on the plunger, between the hammer and the shoulder M on the plunger. The anvil also acts as a stop, which keeps the plunger from rising above a certain point by coming in contact ywith the shoulder M on the lower end of the plunger A as the spring a forces the plunger upward.

The table D is used for the purpose of giving the different widths of set to the teeth, or

the teeth, and is operated by revolving the cam F, and the motion is attained by a projection on the rear end of the table D, working in agroove inthe cam F atf'. The-different bevels are given by the indicator f passing over a numbered disk on the bed-plate H. The top-gage, O, is for the purpose of keeping the saw -teeth from coming in contact with the square surfaces of the plunger A 5 it slides on top of the table D, and prevents the table D from rising out of itsy bearings. The thumb-screw G passes through a slot in the gage C and through the cam F and screws into the bed-plate H, and when screwed down tight it holds the gage C, the table D, and the cam F firmly in place.

The. sliding restj is formed, as shown in Fig. 1, by fastening a properlyconstructed foot on'each end of a small rod, t. The rod slides through bearings h on the bed-plate H. The sliding rest is for the purpose of holding the saw parallel while passing under the ham- 1 rests on the plug, then screw up the plug until it will raise the hammer off the anvil, leaving the space between the hammer and anvil equal to the thickness of the saw-blade. If properly used, it is impossible to injure the saw-teeth.` In setting a saw, rst get the desired pitch to the table D by turning the cam F, then slide the top gage forward until it will prevent thesawteeth from coming in .contact with the square surfaces of the plunger A, then fasten them in place by the thumbscrew G, then place the saw on the table j,

letting the teeth rest on the anvil B, with theY point of the vtooth t0 be set opposite the vertical line on the fiat surface of the plunger Yunder the hammer, strike ,the top of the plunger with the palm of the hand or a light mallet. A light blow is sufficient to perform the operation.

IOC

Having now fully described my invention, ble j, al1 substantially as described, and for what I claim, and desire to secure4 by Letters the purpose set forth.A Patent, is

The combination of the bed-plate H, the 'CARLETON CHARLES HARRIS' 5 plunger and hammer A, the anvil B, the ta- Witnesses:

` ble D, the cam F, with indicatorf, the thnmb- ALMOND DIBBLE,

screw G, the top gage, C, and the sliding ta- THos. RICH.

Images