US381287A - Rotary engine - Google Patents

Description

r (NoModelQ) I I J. E. S NEVELY.

ROTARY ENGINE". No. 381,287. Patented-Apr. 17'. '1888'.

JAMES E. SNEVELY, OF CHETOPA, KANSAS.

. ROTARY ENGINE;

SPECIFICATION forming part of Letters Patent NO. 3s1.2a7,aateaA rn' 17,1833. 7,

' Application filed December 15, 1887; Serial No. 257,947. (No model.) 7

.To all whom it may concern-1 Be it known that 1, JAMES E.

Kansas, have invented. a new and Improved 5 RotaryEngine, of which the followingis a full,

clear, and exact description. p v

This invention relates to reversible rotary engines, and has for its object to provide a rotary enginewhich will operate easily and will be durable.

The invention consists in a rotary engine constructed and arranged as hereinafter described and claimed. 1

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

Figure 1 is a transverse vertical section of the invention, with supportsand steam-pipes broken away- Fig. 2 is a vertical section on the line was of Fig. 1; and Fig. 3 is a detail view ofthe piston, showing its inlet and outlet steam-ports.

In this invention thesteam is introduced into the piston, and thel'atter (which is eccentrio) rotates in a circular casing or cylinder provided with yielding abutment-blocks which bear against the peripheryof the piston.

In the construction otfthis rotary engine a- 3o cylinder or casing, 1,;is mounted on suitable 1 supports, 2, and secured to the latter by screws or bolts 3 passingthrough arms 4. Within the casing 1 is located the piston 5, mounted on'a shaft, 6, passing through the 'casing and having a band-pulley, 7. The

journal-boxes 8'in the casingl are provided with suitable packing, 9, and retaining-plates tric piston -5'acts alternately to press back abutment-blocks 19, adapted to slide in recesses 20in the a'rmset of the casing'l. To give free movement to theblocks 19, theyare v SNEvnLY, ofv Ohetopa, in the county of Labette and State of PATENT O F C mounted onanti-frietion ball bearings2l,and are held in outward position by means 0f springs 22. Access is had to the parts just;

described by means of a removable plate, 23, secured by screws 24, A tight joint is formed 5 between the piston 5 and the annular. space 15" by means of the packing rings 25 and'the shouldered projectingportion 26 of the-piston 5'and the setscrews 27, whichholdthe rings '25 againstthe projecting-portion 26. I

The steam-supply pipe 28 connects with a passage, 29, communicating with a circular w 5 chamber, 30, in which is located a rotaryval've, .31, By means of the latter steam admitted into the'passage 29 maybe directed into either I of the branch pipes 32, connecting with steamchests 13. I The chamber 30 also connects with a steam-discharge pipe,j3.? The valve 31 is of such a shape as to freely'permit thepassage p,

of steam into one or the other of the branch I tubes32, according as it is turned by means of handle or wheel 34., and the dischargeof steam through the pipe 33.

"The operation is as follows: The valve 31 being in the position shown -in Fig. 2,.steamis admitted through the pipe 28, andpasses, as indicated by the arrows, through 'theright hand branch tube 32-into the steam-chest13 and recessj12, which is at all times open to',' steam-chest 13. The steam passesfrom the recess 12 through the ports 14. into the annular space on one-side of the right-hand abutmentblock 19 in. Fig. 1,] and is stoppedthereby. The action of the steam causes the piston 5 to be driven forward until the ports l t-have passed the block 19, when the steam expands I and enters the space15 between the block s 19. Upon the further revolution of the piston:

5 thefports 14 of the secondor opposite recess 12 are brought around to the annular space 15 between the blocks 19, and thesteam therein and inthe recesses 12 escapes into thelefthand steam-chest 13in Fig. 2, and passes through the ports 14 therein and branch pipe 32, and is discharged by" means of pipe 33.

The piston 5 continuing to revolve, the lefthand abutment-block 19 is pressed back by Q the eccentric 16, and the steam .enters*the'r'ecesses 12. Upon the piston 5 reaching the too position show'nin Fi t Operation, m;

peated.

In the foregoingoperationthe right-hand contact will be made between the eccentric 16 and the casing 1 by means of the yielding block 17. The configuration of the recesses in the piston will be such as to cause the steam "to efi'ectively drive it, and the abutment-blocks will offer the least resistance to the movement of the piston by reason of the ball-bearings'and spring-cushions. It will also be seen that, owing to the adjustability of thepartsin frictional contact, when the parts 'becoine worn they will still form perfect "steam-joints'and; the piston will work regularly an d"sfnooth ly.

I The engine may be run by steam, water, or compressed air by varying thesiz'e ofthep'owerinlet.

Having thus described myinvention,I'claim as new and desire to-secure by'LettersPatent' 1. In a rotary engine, thecombinatiom'with a cylinder -casing having sliding abutmentblocks, of an eccentric rotary piston having S-shaped recesses opening into steam-chests branch pipes 32, passage 29, feed-pipe 28, ro-.

'taryvalve 31, and discharge-pipe 33, of an eccentric'piston, 5, having S-shaped recesses 12, 'ports14, yielding block 17,projection 26,' 5

' andwashers 25, having set-screws 27, substan- '-tially as described.

JAMES E. sNEvELY. Witnesses:

.JNO. W. BREIDENTHAL,

L. M. BEDELL.

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