US278062A - Steam-engine - Google Patents

Description

3 Sheets-Sheet 2. E. TANDLER.

(No Model.)-

STEAM ENGINE.

Patented May ZZ -l8 8 3v.

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(No Model.) s Sheets-Sheet 3. E. TANDLE'R.

STBAM'ENGINB.

No. 278,062. Patent-ed May 22,1883.

ATTORNEY I UNITED STATES PATENT OFFICE.

EDUARD TANDLER, OF GRAND RAPIDS, MICHIGAN.

STEAM-ENGINE.

SPECIFICATION forming part of Letters Patent No. 278,062, dated May 22, 1883.

Application filed February .16, 1883. (No model.)

To all whom it may concern Be it known that I, EDUARD TANDLER, of Grand Rapids, county of Kent, and State of Michigan, have invented certain new and useful Improvements in Steam-Engines, of which the following is a specification.

This invention has reference to an improved construction of steam-engines, in which the valve-chest and the steam admission andexhaust valves are arranged close to the steamports of the cylinder, and thereby the size of the valve-chest reduced, so that a smaller quan tity of steam is required for filling the'chest at each revolution of the driving-shaft, and consequently the engine can be run at a considerable saving of steam.

In the accompanying drawings, Figure 1 represents a vertical transverse section of a steamcylinder with my improved valves and valvechest. Fig. 2 is a side elevation of the same with the covering-plates of the valve-chest removed, so as to show the steam-ports. Fig. 3 is a detail longitudinal section through the steam-cylinder and admission-port on line mm, Fig. 2. Figs. 4, 5, and 6 are details of a cut-oft slide-valve for the admission, and Figs. 7, 8,

' and9are details of a slide-valve for the exhaust steam.

Similar letters of reference indicate corresponding parts.

A in the drawings represents a steam-cylinder, which is supported on upright standards A. The steam-cylinder A is provided at one side and at each end with a horizontallypartitioned steam-chest, B, that is closed by a covering-plate, B. The valve-chest B is cast with inwardly-projecting portions 1) b, which approach close to the steam-ports a a of the cylinder, and are provided with a valve-seat, d, for the steam-admission valve 0, and with a" valve-seat, d, for the exhaust-valve D. The steam admission and exhaust valves 0 and D and their seats 61 d are inclined toward a horizontal plane that passes through the axis of the steam-cylinder A, and are thereby located 'close to the steam-ports. The valves 0 and D take up, therefore, less space, so that the valve-chest B can be reduced in size, as compared to the steam-chests of the ordinary slidevalve engines. The valve-chest B is secured to flanged seats a of the cylinder A, and the interior space of the same almost entirely taken up by the steam-valves O and D,so as to leave but a small space around the same to be filled by steam. The seat 01 of the steam-admission valve G is located at one side of the projection 11 of the valve-chest away from the cylinder, while the seat (1 and the exhaust-valve D are arranged at the other side of the projection b nearer to the cylinder, as shown clearly in Fig. 1. 1

I prefer to use for admitting the steam the cut-ofl' slide-valve shown in detail in Figs. 4, 5, and 6, and for exhausting the steam the valve shown in Figs. 7, 8, and 9. In place of the same, steam admission and exhaust valves of any approved construction maybe used, as

I do not confine myself to the specific construction shown,

Thevalve-chests B B of the cylinder A are connected by horizontal steampipes B B of which the upper pipe, B forms the admission, and the lower pipe, B, the exhaust pipe. The pipes B B are connected by a valved vertical pipe, 0, of smaller diameter, which serves for the purpose of admitting steam to the exhaustpipe 13 and keeping the same warm during the time when the engine is not running, by which an equal expansion and contraction of the valve-chest and cylinder is secured.

The water of condensation is drawn ofif at both ends of the steam -cylinder A through holes f, provided with exterior.water-cocks, f. The exhaust-port a is extended toward the lowest point of the cylinder, from which point a downwardly-inclined surface, f sheds the water of condensation to the holef, as shown in Fig. 1. By this arrangement the size of the exhaust-port is not only increased and the steam permitted to escape more freely, but also the water of condensation readily drawn 011' through the water-cooks to the outside.

The water-cocks are arranged at the inner side walls of the valve-chests B B, as shown in Fig. 2, so that the opening of the cooks f f. is conveniently accomplished-by turning both cocks at the same time, and thus the water of condensation. discharged quickly from both ends of the cylinderiat the same time.

The essential feature of my invention is the inclined arrangement of the steam admission and exhaust valves toward the steam-cylinder, whereby they are brought closer to the steamports, the size of the steam-chest is reduced,

and consequently a smaller quantity of steam required for each revolution of the engine, so that the same can be run with less steam and at a considerable saving in fuel.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination of a steam-cy1inder,provided with flanged seats a? and induction and eduetion ports a a, a longitudinally partitioned valve-chest provided with inward projections b I), provided, respectively, with outward valve-seats, cl, and inward valve-seats, d, and steam admission and exhaust valves arranged upon said seats at a suitable inclination to and at opposite sides of a plane passing through the axis of the cylinder, substantially as described.

2. In a steam-engine, the combination of steam-cylinder A, valve-chestsB B, steam supply and exhaust pipes B 13, connected by a valved pipe, e, so as to admit steam to the exhaust-pipe when the engine is not running, and provide for the equal expansion of the valve-chests and cylinder, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in pres ence of two subscribing witnesses.

EDUARD TANDLER.

VVi tnesses:

KARL KALKBENER, FREDERICK LOETIGERT.

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