US385004A

US385004A - Machine for sharpening saws

Info

Publication number: US385004A
Authority: US
Publication date: 1888-06-26
Anticipated expiration: 1905-06-26

Description

(No Model.)

B. M. PINE.

MACHINE FOR SHARPENING SAWS.

PatehtedJundZG, 1888. I

Witwamao I UNITED States ATENT Fries.

REUBEN M. PINE, OF COLUMBIA CITY, INDIANA.

MACHINE FOR 'SHARPENING SAWS ,SPECIPICATION forming part of Itetters Patent No. 385,004, dated June 26, 1888.

Application filed March 26. 1888.

T (LZZ whom it may concern:

Be it known that I, REUBEN M. PINE, a resident of Columbia City, in the county of Whitley and State of Indiana, have invented certain new and useful Improvements in Machines for Sharpening Saws; and I do hereby declare the following to be a full, clear, and-exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to an improvement in machines for sharpening saws, of which the following is a specification.

In the accompanying drawings, Figure 1 is a side elevation of a saw-sharpening machine embodying myimprovements. Fig. 2is a top plan view of the same. Fig. 3 is a detailed perspective View of one of the gages.

A represents the base or frame.

I5 represents a pair ofaligned inclined standards that project from the upper side of the base near one end thereof and have their upper ends connected by a cross-plate, B.

B represents a standard which is parallel with the standards B and is secured near the opposite end of the base. A shaft, 0, isjournaled in bearings in the standards B and has a rigid gear wheel, D, which is arranged between the said standards, and to one end of said shaft is secured a crank, L.

F represents an inclined shaft, which is journaled in the standard Band in one of the standards B. Rigidly secured to this shaft is a pinion, E, that meshes with the wheel D,aud'

an emery-wheel, G, that has its periphery bcv eled, as shown.

II represents a curved gage-arm, which is provided at its inner endwith a right'angled slotted ear, 0. A set-screw, I, extends through the slotin said ear and enters one of the standards B, and thereby secures the gage-arm H to said standard and adapts the same to be adjusted vertically or disposed at any desired angle.

I represents a pair of gages, which are arranged on the ends of the base A, and have the right angled transversely disposed slotted plates 1, which bear upon the lower side of the base, and from the inner sides of the said plates depend vertical arms I.

extend through theSlots in the plates and en- Set-screws J Serial No. 268,457. (No model.) i

I ter the base, and thereby adapt the said gages to be secured to the base at any desired adjustment. On one side of the base is a handhold, Q. by means of which the machine may be readily grasped and manipulated.

The operation of the invention is as follows: A circular or straight-edge saw is secured in a suitable vise or is supported on the mandrel as when in operation, and the machine is applied to one side of the same, the gages I bean ing against the inner side of the saw and the gage H bearing against the points of some of the teeth thereof. This causes the beveled edge of the emery or grinding wheel to enter the space between two of the sawteeth, and by properly adj usting the gages the said grinding wheel may be caused to grind the teeth to any desired depth and to any angle. Rotary mo tion is imparted to the grinding wheel when the crank-shaft is rotated by reason of the gears hereinbefore described, as will be readily understood.

Having thus described my claim 1. A sawsharpening machine comprising the base having the gages and the beveled invention, I

tially as described.

2. In a saw-sharpening machine, the combination of the base having the standards B B, the sliaftO, journaled in standards B and having the crank and the gear wheel D, the inclined shaft F, journaled in standard B and one of the standards B,'and having the beveled grinding-wheel, and the pinion meshing with the wheel D, substantially as described.

3. The combination of the base, the beveled grinding-wheel mounted thereon, means, substantially as specified, to rotate said grindingwheel, the laterally-adjustable gages I at the ends of the base, andthevertically-adjustable gage II above the base, said gage H being also adapted to be inclined, substantially as described.

In testimony whereofI have signed this specification in the presence of two subscribing witnesses.

It. M. PINE.

V i tnesses:

Gno. H. LAMAR, SOHUYLER DURYEE.

grinding-wheel mounted onthe base, substan;