US325487A

US325487A - Steam-engine

Info

Publication number: US325487A
Authority: US
Publication date: 1885-09-01
Anticipated expiration: 1902-09-01

Description

(No Model.) I

J. L. BOGBR'T.

STEAM ENGINE. No. 325,487. Patented Sept. 1, 1885.

N. PETERS Promunw a w. Washingium n. c.

UNITED STATES PATENT @rrion.

J QHN L. BOGERT, OF FLUSHING, NE\V YORK.

STEAM-ENGINE.

SPECIFICATION forming part of Letters Patent No. 325,487, dated September 1, 1885.

Application filed January 31, 1885. (No model.)

To all whom it may concern:

Be it known that I, JOHN L. BOGERT, of Flushing, in the county of Queens and State of New York, have invented an Improvement in Steam-Engines, of which .the following isa the respective portions m m a and are bolted specification.

This invention is made for inclosing the cranks and crank-shaft of a vertical duplex single-acting engine in such a manner that access can be had for removing the cranks, the connecting-rods, and the plungers whenever required.

In the drawings, Figure l is an elevation of the engine endwise of the crank-shaft, and Fig. 2 is a side elevation partially in section. Fig. 3 is a section at the line m x, and Fig. 4 is an elevation of one of the hinges of the case.

The cylinders A and 13 stand vertical. They are preferably cast together, and at G is the hub or flange for receiving the steampipe,

and at D the similar flange for the exhaustpipe. The valve is preferably between the cylinders, and made so that one valve serves for the two cylinders, and the piston or plunger of one is made to ascend as the other descends, and the piston and plunger in each cylinder may be made with a wrist-pin, as shown in my Patent No. 309,686.

The wrist-pins are shown bydotted lines at c and the connecting-rods at (L The peculiar construction of the valve and ports connected therewith does not form any necessary part of the present application.

The cranks F G are placed at one hundred and eighty degrees apart, and the crank-shaft H is usually providedwith the two drivingpulleys or fly-wheels KK outside its bearings. I do not in this application describe or claim any peculiarity in the construction of the cranks or of the pitman or connecting-rods.

My present invention relates especially to the peculiar constructionof theinclosingcase and the parts that support the crank-shaft and engine. Y

At the lower ends of the cylinders A B are the flanges a, and these rest upon and are bolted to the casing L, that is hollow and of a quadrangular form, the sides and ends being somewhat inclined, and cast with the case are the upper portions, m m n, of the journal boxes of the crank-shaft. The portions m m are at the two ends of the case and project principally inwardly, and the center boX,n,is upon a web or harm, that goes across the middle part of the case. The caps 0 0 oarebelow on. These journal-boxes are usually filled with Babbitt-metal.

It will now be understood that the twin singleacting cylinder-engine before described is complete in itself and could be run if inverted, so as to stand upon the cylinderheads; but with engines especially that run at high speed it is preferable to place the cranks and shaft as low down as possible, so as to lesson vibration. In providing a support for the enginesl at the same time inclose and protect the cranks and parts from dust and injury and provide for lubrication.

The box-shaped base is a casting of the requisite weight and strength,with a bottom,

P, ends Q,and front and back, RR. The case is hinged to this base by the hinges S, which are preferably three in number, one in the middle and one near each end. Eachhinge is made of a bolt, 1, passing through the two lugs 2 2, or flanges cast on L,and also through an eye at the upper end of the. bolt 3, which eye is between the flanges, and the bolt 3 passes through a lug, 4, upon the back R,and is secured by nut 6 below the lug. It is now to be understood that upon these hinges S the whole of the engine can be swung back so as to be laid into a horizontal or nearly horizontal position to give access to the cranks, boxes, shaft, pitmen, or the pistons or plungers, the steam and exhaust pipes being first disconnected or formed with swinging joints.

hen the engine is turned up vertically,it rests firmly upon the upper edges of the boxshaped base. It will be seen that the ends Q Q of this base are notched to allow for the reception of the journal-box caps, and the surfaces 7 and S are preferably planed off, so as to cause the case L to take a firm bearing upon the box-shaped base.

Adjacent to the planed surfaces the flanges at the top of the base and the bottom of the case are recessed for the reception of a thick strip of felt, t, which is compressed by the weight of the engine and serves to efi'ectually exclude the atmosphere and any dust or foreign substances.

There is a central rib or frame, T,to strengthen the box-shaped base.

Whenever the necessary appliances for swinging over the engine are easily provided the same may be availed of; but I usually provide projecting lugs 12 upon the front, R, near the middle,and a swivel joint-piece, 13, between them, through which passes the screw u, and there are similar flanges or lugs, 14, projecting from the case L, and between these is a swiveled nut, l5,for the said screw u.

By rotating the nut within the swivel,or by revolving the screw to, the front edge of the case will be raised and the engine swung back and held at any point to which itvmay be moved, as indicated by the dotted lines, Fig. l. The reverse rotation of the screw closes the parts, and clamps them firmly when the surfaces of the case and base come into contact.

There are three oil-cups, V, preferably cast and shaft, of a case bolted to the ends of the cylinders and provided with the journal-boxes or bearings and abox-shaped base upon which the edges of the case rest, and hinges to connect the case and base, substantially as set forth.

2. The combination, with the twin cylinders, connecting-rods, and cranks, of a case connected to the cylinders and provided with journal boxes or bearings, a box-shaped base upon which the lower edges of the case rest, and an intervening strip of elastic material such as felt-to exclude dust,substantially as set forth.

3. The combination, with the engine and the caseinclosing the cranks of a box-shaped base,hinges to connect the case and base, and a screw to clamp the parts together, or to swing the case open to give access to the cranks and other parts, substantially as set JOHN L. BOGERT.

Witnesses:

G130. T. PINOKNEY, WILLIA G. MOTT.