US298376A - Mechanical movement - Google Patents

Description

(No Model.)

MEHANIAL MOVEMENT.

No. 288,878. Patented May 18.1884.

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GEORGE S. HENSLEY, OF MIDDLETOWN, ASSIGN OR OF ONE-HALF, TO ZAOHARIAH THOMPSON, OF CLINTON, ARKANSAS.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 298,376, dated May 13, 1884.

Application tiled vApril 12, 1884. (No model.)

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Be it known that I, GEORGE S. HnNsLnY, a citizen ot'the United States, residing at Middletownsettlement, in the county ot'V-an Buren and State ot' Arkansas, have invented certain new and useful Improvements in Mechanical Movements, ot' which the following is aspecitication, reference being had therein to the accompanying drawings.

My invention has relation to mechanical movements, and more particularly to that class wherein a reciprocatingis converted into an accelerated rotary motion; and the object is to so communicate the reciprocating motion to a rotating crank whereby the crank will have the same or a greater throw than the stroke of the reciprocating movement, and thus a greater leverage brought to bear upon said crank; and to these ends the novelty consists in the construction, arrangement, and combination ofv parts, as will be hereinafter more fully described, and particularly pointed out in the claim.

In the accompanying drawings the same letters ot' reference indicate the same parts ofthe invention.

Figure l is a side elevation of an engine embodying my invention, and Fig. 2 is a plan view ofthe device detached.

A is the bed-plate or base, B the cylinder, C the piston-rod, D the iiy-wheel, and E the eccentric-rod, of an ordinary horizontal engine. A

F is the crank, secured to the shaft H.

To the outer end of the crank H is secured the usual crank-pin, G, and connected to it are two short pitmen, I I, their other ends being connected by pins 't' t' to the levers K K, pivr oted at their centers to the pin L, their inner end being secured to the pitmen M M by pins or bolts n a, while the inner ends of the pitmen M M are secured to av pin, N, which is rigid with the standard O.

P is a connecting-rod, having a U-shaped head, p p', encompassing the levers K K, so as to form a bearing on either side thereofi'or the -pin L, while the other end of the connectingrod P is secured to the crosshead R; and it will thus be seen that the reciprocating motion of the cross-head is converted into a motion ot' the shaft H, through the medium of the connecting-rod, pitmen, levers, and crank above described.

It will further be observed by those familiar with the principle ofthe lazy-tongs herein employed, that for each pair oi' the cross-levers K K employed the motion in inches of the cross-head will be doubled with regard to the crank, and, in the illustration shown, while the cross-head is moving one inch the crank is moving two inches. Ir", however, a double pair ofthe levers K K be employed, then for every inch the cross-head travels the crank will move four inches.

In the drawings I have shown my improved mechanical movement as applied to a steamengine in place of the ordinary connectingrod, which is dispensed with, and a much larger crank used than would be the case if the old construction were employed, whereby a greater leverage is obtained upon the crank with the same pressure upon the piston.

Having thus fully described my invention, what I claim as new and useful, and desire to secure by Letters Patent of the United States, 1s-

The combination,with the bed-plate, having standard O and shaft H, provided with crank F, of the connecting-rod P, levers K K, and pitmen I I and M M, arranged substantially as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE S. YPIENSLEY.

vWitnesses:

J. A. HENsLEY, JOHN GooDNrGHT.

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