US336407A - Band-saw mill - Google Patents

Description

(No Model.)

F. M. HANKS 81: H. N. SIBLEY.

BAND SAIW MILL. No. 336,407. Patented Feb. 16, 1886.

IIUDOOOODOO IN VENTOR BY mug ATTORNEYS.

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UNITED STATES PATENT OFFICE.

FRANCIS M. HANKS AND HORACE N. SIBLEY, OF MIDWAY, LOUISIANA.

BAND-SAW MILL.

SPECIFICATION forming part of Letters Patent No. 336.407, dated February 16. 1886.

Application tiled October 1, 1885.

To all whom it may concern:

Be it known that we, FRANCIS M. HANKS and HORACE N. SIBLEY, both of Midway, in the parish of Bossier and State of Louisiana, have invented a new and Improved Band- Sawing Machine, of which the following is a full, clear, and exact description.

Our invention relates to the construction of a band-sawing-nlachine; and it consists in the construction and arrangement of parts, as will be hereinafter fully described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar lettersof reference indicate corresponding parts in all the figures.

Figure l is a side view of a band-sawing machine embodying our invention, a portion of the rim of the upper wheel being cut away to disclose the interior construction. Fig. 2 is a view of the front of the machine, and Fig. Fig. 3 a detail sectional view taken on line as a: of Fig. 1.

Referring now to the general construction illustrated in the drawings, A represents the supporting-frame,and B B the driving-wheels, which are mounted in the usual manner, the one above and the other below the table C, power, as usual, being applied by means of a belt, as D, which runs over a pulley on the shaft of the wheel B.

E represents the band-saw, made in accordance with the terms of our invention-that is to say, having saw-teeth upon each edge of the band.

In order that the saw may be properly guided, holes 2' z i are formed at equal distances apart along the centerline of the band, and pins 0 0 0 project from the center line of the peripheries of the wheels B B, all the pins being at equal distances the one from the other, and being arranged so as to enter the holes 73 z of the band E, so that when the wheel B is revolved a positive motion will be Serial No. 178,709. (No model.)

same time be held against lateral displacement.

The pins 0 0 are not rigidly mounted in the peripheral rim of the wheels B B, but are supported by spiral springs e e, so that their outer ends project beyond the face of said rim. The inner ends of spiral springs e e are held by posts a a, while the outer ends of the springs encircle the pins 0 o and bear against a collar, 0, carried by said pins, the action of the springs being to press the pins outward, so that the collars 0 will abut against the inner face of the outer rim of the wheels.

The idea of having the pins 0 0 yieldingly mounted is to avoid injury to the saw should it by chance be thrown off from its bearing.

\Vith such a saw as we have described the timber can be cut from either side of the table, thus saving time in reversing the position of the material to be sawed.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

l. The combination, with a band-saw havinga longitudinal series of holes, of the wheels on which the saw is mounted, pins projecting through the peripheral faces of said wheels to engage the said holes,and springs for' affording a yielding movement to the said pins, substantially as set forth.

2. The combination, with a bandsaw having alongitudinal series of holes, of the bandwheels having hollow rims, the outer faces of which have perforations therein, posts a a within the rims, in alignment with the holes therein, pins projecting through said holes and provided with collars c, and the spiral springs on the posts a and bearing against the said collars, substantially as set forth.

FRANCIS M. HANKS. HORACE N. SIBLEY. Vitnesses:

imparted to the band-saw, which will at the I. P. SMITH, O. L. TIDWELL.

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