US5989A

US5989A - Sawing spokes

Info

Publication number: US5989A
Authority: US
Publication date: 1848-12-26
Anticipated expiration: 1865-12-26

Description

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UNTTED sTATEs PATENT omnes.

THoMAs GREEN, oT'DE WITT, NEW'YORK.

SAWING SPOKES.

Specification of Letters Patent No. 5,989, dated December 26, 1848.

To @ZZ whom t may concern Be it known that I, THOMAS GREEN, of the town of De Witt, in the county of Onondaga and State of New York, have invented a new and improved mode of sawing out spokes, staves, and other articles with the grain, whether the lumber from which the same are sawed be straight grained or winding, and I do hereby declare that the following is a-true and eXact description of the said invention.

The nature of my invention consists in sawing with the grain either straight grained or winding timber in such manner as to make the spoke or other article sawed out straight and not cross grained withoutI waste of timber.

To enable others not skilled in the art to use my invention I will proceed to describe its construction and operation.

I construct a frame (on which the car riage is to run) at least twice as long as the lumber int-ended to be sawed, near the middle of the frame I place two circular saws, one perpendicular and the other horizontal. The perpendicular saw I place so as to saw the under side of the bolt or block toward the center and deep enough for the width of the spoke or stave. I place the' horizontal saw as high as the upper edge of the perpendicular saw and so near to it that the cuts of both saws will meet and form a right angle. The carriage runs on ribbons, at each end of the carriage I place a standard upon which I place a sliding block to be raised or lowered at pleasure to suit the size of the bolt or log sawed from, into which are placed the boxes for the ends or gudgeons of the shaft to run in. The ends of the shaft are crooked so that the centers of the ends or bearings are in a line with one side of the shaft. The log or bolt to be sawed is to be split as the grain runs, as near as may be, through the center, into halves. I then place the flat side of the bolt at the center or heart against the side of the shaft that is in line with the center of the bearings or ends, and fasten it there with dogsor staples. The head standard is attached to the carriage by a joint or hinge so that the upper end maybe leaned to or from the saws at pleasure, according to the wind of the grain of the bolt. The shaft is then turned so as to bring the flat side of the bolt towardfthe saws, the lower edge should be turned far enough` past the perpendicular saw to constitute the thickness of the spo-ke which is regulated by a gage, and the head standardtrained to or from the Vsaws so as to make the edge of the bolt parallel with the side ofthe carriage,fand fastened there.

Having the bolt thus placed I saw out a spoke. and then turn the bolt far eno-ugh for the thickness of another, andA repeat the process until one tier is sawed around the bolt. I then lower the head 'and foot blocks enough for the width of anothery tier of spokes and gage them so that the wide end of the spoke is taken from the largestend of theibolt and so continue the operation until thelog or bolt is sawed up.

What I claim as my invention and desire Ato secure by Letters Patent is- The placing the bolt and arranging the operation so that I saw with the grain, straight grained or winding timber, and makev the spoke or other article sawed straight and not cross grained, Without wasting the timber.

Dated De Vitt, July 13th, 184:8.

i TI-IOS. GREEN.

' Witnesses:

IsAAc W. BREWSTER, JACOB J. Low,