US4202A - Fredk - Google Patents

Description

UNFFED STAT FREDK. E. srcxELs,

or fronx, N.

p MODE OF CONNECTING STEAM-CYLINDERS WITH STEAM-CHESTS.

Specification forming part of Letters Patent No. 4,202, dated September 19, 1845; Reissued June 1,

To all/whom t may concern Be 1t known that I, FREDERIGKELSWORT SICKELS, of the city, county, and State of New York, have invented a new and useful-v ciently, and closely connected together, withv less labor and weight in construction and more economy 1n operation than by any mode heretofore adopted, and that the fol-v lowing is a full, clear, and exact description of the principle or character thereof which distinguishes it'from all other things before known and of the manner of making, constructing, and using the same, reference being had to the accompanying drawings making parto'f-this specication, in which- Figure 1 is a horizontal section through the condenser and chest; Fig. 2, an isometrical View of the lower end of thecylinder; Fig. 3, a vertical section through the steam chest and side pipes, taken at the line A B of Fig. 5; Fig. 4, a vert-ical section through the center of the steam chest and cylinder, taken at the line C D of Fig. 5; Fig. 5, an

isometrical view of the steam chest, sider pipes, top and'bottom of the cylinder, cylinder, and the condenser, showing these parts before they` are put together; Fig. 6, a horizontal section through the steam chest and cylinder at the line I K of Figs. 3, 4, and 5; Fig. 7 a top view of the steam chest and cylinder; Fig. 8, a horizontal section through the condenser and steam chest at the line Gr Hof Figs. 3, 4, and 5; and Fig. 9, a horizontal section through the cylinder and steam chest at the line L M of Figs. 3, 4, and 5.

The same letters are used in all the ligures to indicate like parts.

In formin the connection of a steam cylinder with the steam chest of puppet valve engines, it has longbeen known to engineers, that the closeness of this connection is important in an economical point of view, not only on account of the weight and cost of materials employed in making a long connection, but because all the steam contained in this connection is condensed or otherwise lost at each st-roke of the engine; and hence various devices have been resorted to by engineers to surmount this ditliculty: the steam chest hasbeen variously arranged and located, but still all these devices have presented a large area between the chest and i the cylinder, for the steam chest being cast separate from the cylinder suiicient room must be left to form the connection by bolted flanches, which necessarily occupy much room.

To remedy these evils is' the object of my invention, the nature of which consists in casting the steam chests in one piece with the steam cylinder, or one with the cylinder and the other with the condenser and the `cylinder bottom, by making the side of the `cylinder the side of the steam chest,and so of the condenser; and also in so forming and adapting theappendages of these parts as A to `enable them to come together and to unite the cylinder head with the cylinder and the cylinder bottom with the cylinder within the narrow compass left between the steam chest and cylinder when they are brought in such close proximity; the flanch on the cylinder and cylinder bottom being dispensed with toward the steam chest and instead thereof a joint made 4between the chest and the cylinder by packing, or driving, and screws inserted from the inside of the steam chest and screwing into the solidl metal of the cylinder; for the lower steam chest, vand for the upperend, recesses being made in the side of the steam chest to admit the requisite screw bolts for securing the cylinder head.

In the accompanying drawings (C) represents the cylinder, the uper end of which is cast in one piece with the `steam chest (Bf), by bringing the two so close together as to divide them by one single partition, which partition consists of that portionof the cylinder which divides it from the steam chest, thetwo communicating by means of the steam opening (K). This union and close proximity of the cylinder and steam chest renders it necessary to adopt some new mode of attaching the cylinder head (A) to the cylinder, for the flanches in each cannot extend around that portion of their circumference toward the steam chest,

which extends up above the cylinder head. To eff'ectthis end, that portion of the side "of t-he steam chest which extends above the termination of the cylinder is curved, as indicated by the lines (H, H2, H3, H), to form three resesses (I, L', M) leaving an equal thickness of metal around the circular apertures covered by the bonnets (G, G2),

and in each of these three recesses there is a bolt (N, N2, N3), the middle one with a head and introduced in its hole in the bridge (J) from the steam opening (K), and the other two screwed into the solid metal of the partition between the cylinder and steam chest. The cylinder head is formed with three projections (O, O2 O3) to fit in these recesses, and with holes P P2 P3 to lit over the screw bolts (N, N2, N3) which then receive the nuts (Q, Q2, Q3), to secure the two,

together, instead of the continuation of the usual iianches, which are used in the other portions of the circumference.

The lwidth of the steam opening K is formed by the curved lines of the cylinder and the inside of the steam chest running into each other at (F, F2) and its height is represented by (F3, F4). That portionV of the outside of the steam chest below the steam opening (K) and extending in depth from (U) to (U2), (Fig. 4) and in width from (U2) to (U4), (Fig. 6) is made of a circular form and is a portion of the interior surface .of the cylinder? If it be desired to have the condenser at some considerable distance from the cylinder, then the lower steam chest can be cast with the cylinder in like manner as the upper one above described, and then the cylinder bottom can be secured in the same manner. But 'when the condenser is placed in the same line with the cylinder and near to it, then I cast the cylinder bottom (E the condenser F and the steam chest (B2 all in one piece, an air chamber (X2) being formed between the cylinder bottom F/ and the vcondenser top X to act as a non-conduc- V tor of caloric, and thus prevent the reduced temperature of the condenser frombeing communicated to the cylinder bottom.

The flanch on the lower end of the cylinder from W to W2 is discontinued in part, and instead thereof three projections (V, V2, V3) are made, the surfaces of which correspond with that portion of the steam chest between (a and (c CZ) extending up from the cylinder bottom, and which is curved in at (X), between the two apertures covered by the bonnets (G2, Grt) to receive the middle projections V2, into which is tapped thescrew bolt (Y), introduced through the bridge (Z) of the steam opening (Z2) and the other two projections receive the two screw bolts (Y2, Y3), that are introduced from within the steam chest and tapped into these projections, and the object of these projections is to give suflicient metal for these screws, and their surface is made to fit the surface of the steam chest to form a steam tight joint of metal, cement, &c., which must be parallel with the axis of the cylinder instead of at right angles thereto, as along the ilanch (W), the continuation of the flanches being there inadmissible.

The steam passage (Z2) from the cylinder to the steam chest is formed by reason of the side of the steam chest, the channel partition (m) and the condenser terminating where they meet at (n) and (0), making an opening in depth from to (g).

The manner of forming the communication between the steam chest and the condenser is clearly indicated at Fig. 1 which is a horizontal section through the opening,

taken at the line E F of Figs. 3, 4, and 5; (W) is the bottom of the steam chest and.

(s r) one of its sides formed by the continuation of the condenser; and the channel way is formed by this side. (s 1), the partition (t) in the middle which unites with the condenser at (u), and the bot-tom (W) and top (o).

I do not claim Letters Patent simply for casting the steam chests with the cylinder, gr with the cylinder bottom and condenser,

What I do claim as my invention and desire to secure by Letters Patent, is-

Casting the steam chests with thecylinder, or one with the cylinder and the other with the cylinder bottom and condenser, by making the side of the steam chest the side of the cylinder or condenser in combination with the manner of iitting the cylinder head and the lower end lof the cylinder to the chests and the mode -of making the attachments without the continuation of the flanches, thus dispensing with the nozzles and nozzle flanches and their attachments and saving at each stroke the steam contained in the'nozzles, all as herein described.

FREDERICK ELSWORTH SICKELS. Witnesses:

CHS. M. KELLER, TRUMAN GooK.

[FIRST PRINTED 1913.]

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