Improvement in mechanical movement
US 72608 A
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Description (OCR text may contain errors)
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CALEB M. CURREYfOF PONTIAC,V MICHIGAN.
Lettere Patent No. 72,608, elated December 24, 1867.
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TO ALL WHOM IT MAY CNOERN:
Be it known that I, CALEB M. CURREY, of Pontiac, in the county of Oakland, and State of Michigan, have invented a new and useful Mechanical Movement; andI do hereby declare the following to be a full, clear, and
exact description of the same, reference being had to the accompanying drawing, making part of this specification.
This invention consists in a peculiar mode or arranging a crank-shaft and a vibrating-lever, the former ybeing intended to operate such devices as require a horizontal reciprocating motion, asa cross-cut saw,-for
example, and the latter to operate such as require a vertical motion, as the dasher of an upright churn; said parts being employed in connection with supports and clamps for holding the log or other object in position while being sawed. v 4
The drawing is a perspective view of a machine illustrating my invention.
A is an upright'supporting-framekin which is journalled a crank-shaft, B, which may be operated by hand, by means of the interior spur-wheel C, which meshes with the pinion'D keyed upon the end of shaft B. The latter carries upon its opposite end a crank-wheel, E, which serves to vibrate the lever F through the medium ofthe connecting-rod G. H is a cross-cut saw, which may be reciproca-ted by direct connection with the crankshaft B. The log I rests upon the supports J J', and is held thereon by the pivoted arms K K", which are retained in their clamping position by means of the cords, chains, or springs k c, hooks Z, and staples m. The uprights M M, through which the saw-stem works, serveto preventrthe lateral displacement or `undue vibration of the saw. N is an upright churn, the dash-rod O of which is jointed to the lever F, which may be made to give the requisite vertical reciprocating motion to the dasher when desired.
This arrangement is simple and cheap, and is intended to aord better facilities for temporary operations, such as above referred to.
What I claim as new, and desire to secure by Letters Patent, is-
The combination and arrangement of the crank-shaft B, lever` F, and connecting-rod G, with their described accessories C D E, as and for the purpose set forth.
In testimony of which invention, I hereunto set my hand. CALEB M. CURREY.
lVitnesses: .A y GEO. H. KNIGHT, f' JAMES H. LAYMAN.