US1080105A - Rotary steam-engine. - Google Patents

Description

' 0. FRANCO.

ROTARY STEAM ENGINE. APPLICATION FILED JULY 5, 1911.

a fi m m Patented Dec.- 2, 1913.

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G. FRANCO. ROTARY STEAM ENGINE.

APPLIOAITION FILED JULY 5, 1911; 4 1 Q8(), 1 Q5 Patented Dec. '2, 19 1 3.

4 SHEETS-$33111 2 o. FRANGO.- a ROTARYSTEAM ENGINE. APPLICATION FIL BQ JD LYQ 1911. 1,080, 1 ()5, Patented Dec, 2, 1913.

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ROTARY STEAM ENGINE. I APPLICATION FILED JULY 5, 19111 0 1,080,105. Patented Dec. 2, 1913 4 SHEETS-SHEET 4.

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5.. g iam m UNITED STATES CESARE rnnlvco, on NEW YORK, N. Y.

ROTARY STEAM-ENGINE:

Specification of Letters Patent.

Application filed July 5,

PatentedDec.2,1913. 1911'. Serial No. 637,043.

To all whom it may concern:

. Be it known that I, CEsARn FRANCO, a subject of the King of Italy, residing. at New York, in the county of New Yorkand State of New York, have invented new and useful Improvements in Rotary Steam-Engines,'of which the followingis a specification. This invention relatesto improvements in effecting in a simple, expeditious and easy manner, the reversing of the engine.

Other objects will appear and be better understood from that embodiment of my invention of which the following is a specification, reference being had to the accompanying drawings forming a part which:

2 1s a side elevation. Fig. 3 is a horizontal secti e The engine consists of a cylinder B, the

P in the block M, and their outer end portions extend through openings in the part' G1 Helical compression springs S, bearing on the opposite ends of yokes e,

operate to project t e outer ends of the pie tons into contactswith the wall of the" (W inder, as shown in Fig. 3.

The valve chest 'v has on one side a flange 6 which is bolted to the cylinderB, and on its opposite side has a flange-13c which is bolted to the main steam pipe. The passages Z and n in the valve chest communicate respectively, with the exhaust passage f and steanr'passage g and these in turn communicate with the interior of the cylinder through the ports 7:. and z', respectively. The valve T slides in the valve chest 4) and operates to "control the admission of steam from the steam inlet 0 to the steam passage 9 and to 'efi'ect communication-between-the exhaust passage land the outlet m which communicates with the exhaust pipe '01. Thus when the arts are arranged as shown in Fig. 3 and t e valve-T moved upwardlyso asto clear the passage 11., the

- steam will pass from the inlet 0 through the 5 passages .n and g and into the cylinder.-

through the port z. Here it will act on the rotary engines and its object is to admit of hereof in Figure 1 is a plan view of the engine? piston Z until the latter turns beyond the port it, whereupon the steam will pass outwardly through the passages f and Z and when the valve is raised so as to place the chamber therein in communication with the passage Z, the steam moving into this chamber will seek outlet through the outlet m and exhaust pipe d. v V

The movementof the valve is controlled by the eccentric L at one side of the engine, andv through a drive rod O movement is tuated which rocks the leverqto reciprocate the valve rod 5 and shift the valve so as to permit the entrance of the steam or its exhaust.

' The fulcrum of the lever g is located at the end of an arm 6 which may be raised or lowered by means or the lever u and locked in a segment at the outer end' of the'lever u rection of the arrow R.

"As illustrated in Fig. 3, the position of the valve is neutral, but when steam is admitted through the passage n, the shaft is otated in the direction of arrow B, the exhaust taking place through the ports f and Z, but when the lever u is thrown into the position indicated in Fig. 3 by A, steam is admitted through the ports f and Z to drive the eccentric to the left, the steam exhausting through the port 2'. It will thus be seen that by changing the position of the fulbe driven in one direction or the other.

The engine is mounted on substantial standar ds"D and e, while the shaft Q is journaled in the bearings U to provide a substantial and operative device easily reversed and operated by means of steam or explosive vapor, as desired. It is obvious that the parts may be otheringfifrom the essential features above described. 4 What is claimed as new is: 1. Ina rotary steam engine embodying a eecentrically mounted upon a suitable shaft, said shaft being journaled in suitable bearings provided in the walls of the cylinder, the combination of two oppositely disposed 1n .th e rotor and adapted for engaging the given tothe crank arm T on the shaft Q, I and-by means of the arm a link R is acso that the movement may be in the direction of the arrow A or reversed in the di-' crum through the lever u, the engine may wise arranged or controlled without departsuitable cylinder, a steam chest, a rotor spring controlled pistons reciprocally held peripheral wall of the cylinder and rotating the rotor and shaft of the engine with an 'eccentrically controlled valve disposed in a suitable valve seat in the steam chest, adapted for alternately opening and closing the induction port and the exhaust port of the engine whereby the steam is controlled as required. to operate the engine, said valve being reciprocally seated in the'valve. chest and having a rod projected beyond the casing thereof, said rod being pivot-ally secured to a lever adapted for reciprocating said valve, said lever having one end pivotally secured by link connection With a crank shaft, said crank shaft being reciprocally connected with a rod which is eccentrically connected with the main driving shaft of the engine, the other end of said lever being connected by link connection with the arm of an adjusting lever, whereby the fulcrum of the said lever may be shifted as required to change the position of the valve whereby the engine may be reversed.

2. In a rotary engine having suitable supporting frame, casing, cylinder, steam chest,

rotor and spring actuated reciprocating pistons reciprocally held in said rotor, said rotor being mounted upon a suitable drive shaft eccentrically held in suitable journals provided in the casing of the engine, the combination of a reciprocating valve disposed within the steam chest, adapted for regulating the flow of steam in the engine with means for controlling the valve comprising eccentrically actuated mechanism connected with the drive shaft of the engine and the valve rod of said valve, said mechanism embodying a lever pivotally connected at its central portion to the valve rod and Copies of this patent may be obtained for having one end connected by a link with crank arm actuated by the eccentric'mechsf anism of the drive shaft, said lever having its opposite end .pivotally connected by a link with a crank arm of a hand leverad justably mounted upon the frame of the en 4 5' cally actuated arm supported upon the drive 1 shaft of the engine, said arm being pivotally connected with a crank arm suitably mounted upon a rocking shaft, said shaft being journaled in suitable bearings provided upon said frame, a link connecting the end of the crank arm with one end of a lever, said lever; having its central portion pivotally connected with a rod provided upon the valve and adapted for actuating the valve, said lever being fulcrumed at its opposite end by link connections with the arm of an adjustable hand lever, suitably mounted upon the frame of the engine whereby the position of the valve may he changed as required to reverse the engine substantially as shownand described.

New York city May 20th 1911.

CESARE FRANCO.

Witnessesr FRED JOHN ARNEMANN, EMANUEL CAMOIN.

five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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