US150350A - Improvement in rotary engines - Google Patents

Description

c. H. PALMER.

Rotary-Engines.

I/z'ire 6 may: 1

Patented April 28, I874. 1W-

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In yen fanports. Numerals 1 an UNITED ST TES PATENT *OrEroE.

- CHARLES H. PALMER, OF NEW YORK, ASSIGNOR T0 oHARLEs n. DEWEY,

OF BROOKLYN, N. "Y.

IMPROVEMENTIN ROTARY ENGINES.

Specification forming part of Letters Patent No. 150,350, dated April 28, 1874 application filed February 5, 1874.

ing the accompanying drawings and letters of reference marked thereon. I, V I

Figure 1, is a front view. Fig. 2 is a sectional view. Fig. 3 is a front view of the steam-ports. Fig. 4 is a sectional back view of the regulation or exhaust levers. Fig. 5 is a side view of segment-gearings, with intermediate pinion' working therein. Fig. 6 rep-' resents a vertical transverse section taken between chambers K and L, hereafter explained.

a represents the outer casing; b, the central shaft and axis of rotation c a, curved steamcylinders; e e, curved piston-cylinders; f f,

connectiug pistons; g g, regulating or exhaustlevers; h h, segmental gearings, with interme diate pinion o,- i z, friction-cams; J, steamchamber for inlet, and K- steam-chamber for outlet, of steam; L, inlet of steam, and m outlet of steam; at, steam-valve; O, outer circle of steam-ports; and P inner circle of steam- (i2 represent the inlet and exhaust ports. The circulation of the steam through the various ports is indicated by arrows. All the'parts within the case a revolve with shaft b, in the direction of the arrows. Pinion r revolves upon a bearing that is fixed in the shaft b, while the segmentgearings h h, in which pinion 7' works, are

i fitted on shaft b, so that they .may remain withoutmotion while bis in motion, or may exceed the forward motion of b when required .to close up the exhaust-chamber, hereafter conducted across the steam-chamber to the outlet, (seen in Figs. 2 and 6,) while a, Fig. 6,

are the ports, through which live steam enters cylinders c.

Apawl and ratchet may be used instead of the friction-cams t i, to prevent back action of levers g.

The connecting-pistons, tubular or other wise, are not essential to continuous revolution of steam-cylinders, as levers g are alter nately thrown forward toclosefup the err-"- haust, by pinion or operating through segmentgearing .h; but when dispensed with the head of cylinders cshould be closed.

From this description of the construction of this engine it is seenthat,.when steam is admitted between the cylinder-head of c and piston-cylinder head 6, the friction-cams '5 '5 prevent back action of piston-cylinder e in the rear of the steam. Consequently cylinder 0 must advance, while piston-cylinder e in the rear remains momentarily at rest; but piston-cylinder e' in front of the cylinder, taking live steam, is thrown forward twice the distance and double the velocity of the cylinder taking live steam, so as to close up the exhaust of the forward cylinder 0. The cause of piston-cylinder 0 moving "twice the distance, with double the velocityof cylinder 0 in a given time, is a result of pinion r acting as a short lever from the cente of motion upon the long levers 9 through segmental gearings h. When either cylinder 0 is taking live steam a portion escapes into tubular eonnecting-pistons f, and thus aids {levers g to close up the exhaust, thenimmediatel hausts backward through the sam the momentthe exhaust in cylinder'icnuthe rear is being closed up by lever 9. Cylinders 0 exhaust backward through the same chanters Patent- 1 1, The curved cylinders 0 c and piston-cylindex-s e e,in combination; 2. Levers g g; cams-i '5, segmental 'g'eai'ings cylinders'e e.

nel they recei i'e stemn until ranching exhausttubes 1:, at which point and' mo nent ports u am cut 011.

I claim asnew and desire tn'secnre by Leth h, with pinion r,.in combination withpi'stom CHARLES H. P LMER.

Witnesses l I I 1WALTER W. Monmetm, GEO. M. Rm sn

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