US104715A - Improvement in balance slide-valves - Google Patents

Description

, valve-chest and dome.

UNITED STATES PATENT OFFICE.

WILLIAM DIIIIION, OF WHEELING, WEST VIRGINIA.

IMPROVEMENT IN BALANCE SLIDE-VALVES.

Speciiication forming part of Letters Patent No. 104,715, dated June 28, 1870.

" To all whom it 'may concern:

to lift it oil' the seat, and the rod Dis made Be it known that I, WILLIAM DILLN, of adjustable by the nuts H, to regulate the ac- Wheeling, in the county of Ohio and State of West Virginia, have invented a new and Improved Balanced Slide-Valve; and I do hereby declare that the following is a full, clear7 and exact description thereof, which will enable others skilled in the art to make and use the saine, reference being had to the accompaliving drawings, forming part of this specitieation.

My invention relatesto improvements in the arran gement and suspension of balanced slidevalves; and it consists in providing a guide rod made vertically adjustable for regulating the movement of the valve, all arranged as hereinafter" set forth. I A

Figure 1 is a sectional elevation through the Fig. 2 is another' sectional elevation taken in a plane perpendicular to that of Fig. 1.

Similar letters of reference indicate correspending parts. v

A is the slide-valve; B, the dome above the stam-chest; C, the flexible diaphragm in the top of the dome. D is the adjustable end, and E' the rods connecting the valve to the end D.

yThe area of the diaphragm is such that the pressure on it equals the pressure on the valve.

It is made exible and elastic to yield slightly to the weight of the valve when the rods E are on either side of the vertical line, so as not tion of the diaphragm on the valve, so as to allow the valve to work snugly on its seat without material friction.

The rod Dis arranged in transverse stayplates, so that its .movementmust always be in a true vertical line, thus relieving the plate c from all lateral or other strain to which it would be subject were the valve-suspending rod or rods/pivoted to a rod pivoted to and depending altogether on the springplate for support. This arrangement is simple and economical and eiective in securing the better or more perfect action of the valve.

I am aware that slide-valves suspended from rods made adjustable by a screw-thread and nut and connected withcorrugated metal disks or other springs have been heretofore invented, and to such I lay no claim.

Having thus described 1n yinvention, I claim as new and desire to secure by Letters Patent- The arrangement of the rods E E, verticallyadjustable guide-rod l1), and the transverse `and stay-plates, with the valve A, dome B,

and spring-disk C, all as shown and described,

`for the purpose specified.

WILLIAM DIIILON.

Witnesses WM. H. IRWIN, HANNIBAL FORBES.

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