US109179A - Improvement in rotary engines - Google Patents

Description

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@este eine JAMES GOSTANTINE, OF MANSFIELD, LOUISIANA.

Letters Patent No. 109,179, dated November 15, 1870.

IMPRQVEMENT IN ROTARY ENGINES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom. it may concern Bc it known that I J 'AMES Ooxsranfrnsn, of Mansfield, in the parish of De Soto and State of Louisiana, have invented a new and useful Improvement in Steam-Engines; and I do hereby declare that the following is 'a full, clear, and exact description thereof, whichwill enable others skilled in the artto make and use the same, reference being had to the accomf panying drawing forming part of this specification.

My invention relates to' devices for exhausting the steanidi'om rotary engines, and consists in diminishing the extra frictionb'y exhausting through theA hub, as hereinafter described.

I \\"ill\now,describe a machine with which my improvement is preferably combined.

Figure 1 is a `sectional elevation, taken on the line x a: of iig. 2, and l v Figure 2 is a horizontal section on thc line y y of (ig. 1.

A is the cylinder;

l, the piston and Gis the shaft.

E and F are the cut-oli` plates, working through opposite sides of the cylinder throgh vstuffing-boxes.

Gis a shell, attached to one end of thel cylinder, forming a steamchest, H, to which the st eatn is admitted through thc pipc-connectionl.

From this chest it passes into the end of the shaft, which is inadc hollow fora short distance at K, thence it passes into the cylinder through the `piston, at L, bchindit.

' The plates E and F are so `operated as to open in advance of the' piston and close behind it, each clos'- ing before the other begins to open.

M is the exhaust-passage leading from the front of the piston into a hollow boss, N, on the shaft opening into an annular space, 0, inV one of the side walls of the case loading to the exhaust-pipe I.

F, which commences to rise as soon as E hasclosed down. .After passing the plate, and for a quarter of a revolution thereafter, the steam will continue to act against the plate E, when F will have again closed` down, and E will begin to rise.

For operating these plates they are connected by bars (l), to sliding bars R, arranged in radial ways in the side of the case, the said slides being Worked by the cam-plate S on the shaft C, the said plate being provided with a groove, T, in which studs, projecting from the slides It'into the -said groove, work. Half of this `groove .is a semieircle, 'concentric with the shaft at V, andthe other half is suitably formed to open and close the plates while the plate makes half a revolution.

Other means for-.operating these-.plates may be used. The said plates may also be arranged to work through one end of the cylinder in lines parallel with the shaft, but I preferthe arrangement which I have here shown. v Y

Having thus described my invention,

I claim as new4 and desire to secure by Letters Patent--A .lhe piston B L, and cut-off plates E F, combined with chambered boss N, annular space O, channel K,

and chamber H, combined, constructed, and relatively arranged as and for the purpose described. v

The above specificationA` of my invention signed by me this 8th day of April, 1870. JAMES GONSTANTIN E. Witnesses:

GEO. W. MABEE, ALEX. F. ROBERTS.

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