US193134A - Improvement in steam-valves - Google Patents

Description

keep the sleeve from revolving in the case,

:TENT OFFICE.;

WILLIAM ANDREWS, or LIsBoN FALLS, MAINE.

IMPRovEMENT IN STEAM-VALVES.

Specification forming part of Letters Patent N o.

193,] 34, dated July 17, 1877 application filed J une 9, 1877.

To all whom it may concern:

Be it known that I, WILLLAM'ANDREws, of Lisbon Falls, of the county of Androscoggin, of the State of Maine, have invented a new and useful Improvement in Steam Cocks or Faucets; and do hereby declare the same to be described in the following specification and represented in the accompanying drawings, of which- Figures 1 and 2 are side elevations, and Figs. 3 and 4 vertical sections, of a cock or faucet of my improved kind.

It contains within its case A, provided with elbows or a branch induct, a., and a brauch educt, b, arranged as shown, a tubular-sleeve, B, which is d' posed between annular pack'- ings C D, and with such encompasses a tubular valve, E, arranged concentrically within the case.

A screw-nut, F, encircles the stem, and screws into the top of the case A and against the upper packing.

The lower packing rests on a seat or shoulder, c, arranged in the case in manner as represented. On screwing down the nut the upper packing will be compressed between it and the sleeve, and the sleeve will be-forced down upon the lower packing.

The case is closed at its lower end, and the tubular valve is open at its lower end, andy such valve is jointed to a lever, Gr, having its fulcrum at the upper end of a link, H, that is jointed to an arm, I, extending from the valvecase.

The sleeve B has in it an induct or hole, d, and is chambered, as shown at e, such hole being arranged directly in rear of the induct of the case. Furthermore, there is a slot, f, made lengthwise in the sleeve, to receive the end of a screw, g, which is screwed laterally into the case, and, with the slot, serves to but allows of it being moved lengthwise or up and down therein.

The part h of the sleeve which is below the chamber @fits to the tubular valve E, and not only serves as a seat therefor, but to insulate the lower packing from the steam when in the The tubular valve has, as shown, a series of holes or inducts, i, made through it laterally, all of which are arranged so as to be covered at once by the insulator while encompassing them.

0f these inducts or holes there may be one or more; but, in carrying out my improvement, each must be so situated that all may .be covered at once by the insulator, asin such case, no matter how much any one or more of such holes may be above or below the insulator, the lower packing will be so insulated by the insulator and the tubular valve as to be completely protected from being cut by the steam, for all the holes will be closed before any may be forced down to the said packing.

The elbows or branch induct and educt of the case admit of induction and eduction pipes being disposed in line with each other when coupled with the case by means of such extensions from or adjuncts of it.

I do not claim a gage-cock constructed as represented in the United States Patent No. 81,027, in which the steam in flowing through `it llas to pass upward, and the valve has to be raised to cut off the steam.

In the said gage-cock the case operates to close the induction of the valve and insulate the lower packing from the inrushing steam; butin my faucet the sleeve, or the part thereof termed the nsulator,7 is employed to accomplish such, and the valve has to be depressed in order to. close the faucet. Besides, in my faucet, as shown, the valve is open at its lower end, and the case is there closed, and is provided with an educt over the closure, all of which render my faucet specially useful and advantageous.

I claim as my invention as follows-that is to say:

l. In combination with the tubular sleeve provided with the induct and the insulator, and arranged in the valve-case with two packings and a compression-screw applied thereto, asset forth, the movable tubular valve, having each of its iriducts so arranged that while taking steam it shall extend above the insulator, and shall, on the valve being forced said chamber e.

downward, be closed by the insulator before reaching the lower packing, all being substantially es specified and represented.

2. The valve-case A, open at top, bottom, and provided With the branch induet qa and eduet b and the packing-seat o, ar-

ranged as set forth, in combination with the clamp-nut F, the paekings C D, the perforated and insulating sleeve B, and the tubular open valve E, provided with one or more indnets, i, all being constructed and applied substanelosed at tially as shown and explained.

WILLIAM ANDREWS.

Witnesses:

R. H. EDDY, J oHN R. SNOW.

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