US281796A

US281796A - Rotary engine

Info

Publication number: US281796A
Authority: US
Publication date: 1883-07-24
Anticipated expiration: 1900-07-24

Description

(No Model.) O. H. ROBINSON.

ROTARY ENGINE. No. 281,796. Patented July 24, 1883.

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WITNESSES: I 7 E a .9 INVENTOR; 0%01KW5 ZM/M'O/w BY ATTO NEYS UNITED STATES PATENT OFFICE.

O RTON H. ROBINSON, OF MANISTEE, MICHIGAN.

ROTARY ENGINE.

SPECIFICATION formingpart of Letters Patent No. 281,796, dated July 24, 1883.

Application filed December 20. 1882. (No model.) A

1'0 all whom, it may concern Be it known that I, ORTON H. ROBINSON, of Manistee, in the county of Manistee and State of Michigan, have invented a new and useful Improvement in Rotary Engines, of which the following is a full, clear, and exact description.

In my improved rotary engine I employ a wheel or case having internal steamways eccentric to its shaft, and provide the shafts with aradially-moving valve which serves as agate or piston against which the steam acts, as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is an end view of my improved rotary engine. Fig. 2 is a side view. Fig. 3 is a section on line as m, Fig. 2. Fig. 4 is a section on line y 1 Fig. 1; and Fig. 5 is a perspective of the sliding valve.

A is the wheel or case of the engine, which is externally of cylindrical form, and may be made in two or more portions compressed together.

B is the shaft extending through the case, and G is the sliding gate or valve fitted in a transverse mortise, a, in the shaft B. The wheel or case A is cored out internally to form two steam-chambers, b 1), these chambers being of irregular or eccentric form. At points- 1 1, on opposite sides of the shaft, are abutments extending from the surface of the shaft outward to the extreme depth of the steamchambers. From that point for a short distance the chambers are formed concentric to the shaft, then drawn inward toward the shaft to about the point 2, and from thence extend to the surface of the shaft at the opposite abutment by a gradual and easy curve. The shaft is formed with a longitudinal stcampassage, d, and also with a similar exhaustpassage, 6. The steam-passage 62, when the valve 0 is moved inward, connects through parts d with a passage, f, leading to the bottom of mortise, so as to admit steam for forcing the valve outward. The passage d also connects with a port, 9, through the valve, and transverse passage 9 in the shaft, when volves around the casing, which is provided with suitable flanges for keeping the wheel in place. Steam entering by the passagedpasses behindthe valve 0 by the passage f and forces the valve outward into the steam-chamber in the position as shown in Fig. 3. This outward position of the valve allows steam to go by passage 9 g to the space between the abutment and the valve, and the wheel is thus forced around. When the surface at 2 reaches the valve, the valve is forced inward, and steam being thus cut off works expansively from the point until the valve reaches the inner end of the opposite abutment, by which time the valve has been moved to its extreme inward position, and as soon as the valve passes the point of the abutment it is again forced outward in the other steam-chamber. Steam now entering again between the valve and the abutment, the rotation of the wheel continues and the steam in the chamber as used exhausts through the passage 6. There may be a groove on the surface of the shaft connecting the exhaust-ports, so as to continue the exhaust as long as possible.

Havingthus fully described my invention, I

claim as new and desire to secure by Letters Patent 1. In'rotary engines, the combination, with the shaft B, of the wheel or case A, formed with steam chambers, substantially as described, and the gate or valve 0, with the steam ports and passages arranged within the said shaft, as shown and described.

2. The combination, with the shaft B, having the transverse mortise a and steam-passages (Z d and f, of the apertured valve 0 and wheel A, having steam-chambers b, substantially as described.

OBTON H. ROBINSON.

WVitnesses:

GEO. F. COLEMAN, DELBERT E. ROBINSON.