US198099A

US198099A - Improvement in steam-engine cylinders

Info

Publication number: US198099A
Authority: US
Publication date: 1877-12-11
Anticipated expiration: 1894-12-11

Description

2 Sheets-Sheet 2.

H. P. FRISB IE, Steam-"Engine Cylinder.

No. 198,099. Patented Dec. 11,1877.

INVENTOR gag/masses I ATTORNEYS NJFYERS. PNOTO-LITHOGRAPHER. WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

HAMLIN F. FRISBIE, OF DANVILLE, ILLINOIS.

IMPROVEMENT IN STEAM-ENGINE CYLINDERS.

Specific'ationfornnng part of Letters Patent No. 198,099, dated December 11, 1877; application filed December 1, 1877.

To all whom it may concern:

Be it known thatI, HAMLIN F. FRISBIE, of Danville, in the county of Vermillion and in the State of Illinois, have invented certain new and useful Improvements in Steam-Engine Cylinders; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanyto which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawings, in which Figure 1 is a transverse section through the end of the cylinder. Fig. 2 is a longitudinal section of the same, and Fig. 3 is a detailed view of the valve.

A represents a portion of the steam-cylinderat the end, and B is the head thereof. At each end the cylinder A is formed with a surrounding jacket, O, which leaves a steam-chamber, a, entirely surrounding the end of the cylinder. The end of the cylinder A is cut away next to the head B, or close to the head, so as to form a nearly continuous passage, 0, from the steam-chamber a into the cylinder, whereby the steam is admitted at one time into the cylinder almost over its entire area, instead of at one point only, and thereby making the action instantaneous.

The jacket'O is formed with two valvechests, E and E, constructed exactly alike, and containing the valves G and G, respectively, one

being for inlet and the other for exhaust, so that the description of one will answer for both.

The chest E is formed with an annular valveseat, 0, below the steam-inlet H, upon which seat the valve G rests. This valve is made cylindrical, and fits around a cylindrical head, L, projecting from the cover J of the chest. In this head is a circumferential groove, with suitable packing-rings d d placed therein to form tight joints with the valve.

The two inlet-valves at opposite ends of the cylinder are, of course, connected by suitable mechanism and operated alternately. In like manner the two exhaust-valves G are operated for the same purpose.

My invention i s particularly intended for low"- pressure engines, but can also be used for hi ghpressure engines, the main object beingto admit the steam at one time over the entire area of the cylinder and piston.

The valve-chests and valves may be located at any point desired, either top, bottom, or sides.

To the construction of the valve I, however, lay no claim in this application, as I shall make the same the subject of a separate ap-. plication.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

A steam-cylinder provided at each end with a surrounding-jacket, O, forming a continuous steam-chamber, a, with a passage, 1), from said chamber into the cylinder, extending nearly around the end thereof, to admit of an instan' taneous ingress and egress of steam, each jacket being provided with an inlet and an outlet chest having valves therein, substan tiallyas herein set forth.

. In testimony that I claim have hereunto set my hand this "1st day of December, 1877.

H. F. FRISBIE.

Witnesses v FRANK GALT, H. AUBREY ToULMIN.

the foregoing I