US1122499A - Valve. - Google Patents

Description

G. P. HAYNES.

VALVE.

APPLICATION FILED SEPT. 20. 1913.

1,122,499. Patented Dec. 29, 1914.

2 SHEETSSHEET 1.

INVENTOR George P Haynes.

WITNESSES THE NORRIS PETERS CO PHOTO-LITHO., WASHINGTON, D. C.

G. P. HAYNES.

.VALVE.

APPLICATION FILED SEPT.20. 1913.

1,1 22,499. Patented Dec. 29, 1914.

2 SHEETS-:SHEET 2.

illlllllllv f- INVENTOR WITNESSES George PHa ynes.

BY L I A TTORNE Y THE NORRIS PETERS CO.. PHCITO-LITHO., WASHINGTON, D. c

AES

GEORGE F. HAYNES, OF JERSEY CITY, NEW JERSEY, ASSIGNOR TO FRANKLIN M. PAT- TERSON, 0F JERSEY CITY, NEW JERSEY, AND JOHN H. ALLEN, OF NEW YORK, N. Y.

VALVE.

Specification of Letters Patent.

Patented Dec. 29, 1914.

Application filed September 20, 1913. Serial No. 790,842.

radiator valve.

My object is further to so construct the valve that it may be quickly opened and closed; is self cleaning and may also be easily reground without dismantling, it.

While my improved valve is particularly useful in steam heating apparatus, it may be used for most purposes Where a quick acting valve is desirable.

More specifically, my invention consists of a cylindrical body having an interiorly arranged cylindrical valve seat through which are provided the inlet and outlet ports, and combined therewith, a valve piece constituting a segment of a cylinder having its outer surface contacting-with the valve seat of the body, a rock shaft journale'd in the body and having a radial part forming a yielding connection with the valve piece and provided on the end with an operating handle, and a spring arranged between the rock shaft and the valve piece whereby thelatter is nor-' mally held against its seat and all objectionable looseness prevented.

My invention also consists in providing the body with means for introducing a regrinding fluid material, such as oil and flower of emery, and so arranging the operating handle that it may be reversed, whereby in one position it operates the valve piece between definite limit stops on the body and in the other position has capacity for rotating the valve piece within the body without restriction by the limit stops.

My invention also embodies features more fully described hereinafter; and comprehends among other things, details of construction which, together with the structures above specified, will be better understood by reference to the drawings, in which Figure 1 is a sectional view of my improved valve taken on line y-y of Fig. 2; Fig. 2 is a cross sectional view of the same on line z2 of Fig. 1; Fig. 3 is a sectional view of the same on line x--w of Fig. 2; Fig. 4 is a sectional view through a portion of the body on line s:s of Fig. 2;-and Fig. 5 is an elevation of the indicator plate removed from the body.

2 is the body of the valve and is formed in cylindrical shape with an inlet and an out let, respectively having ports opening into the interior. As, under different conditions to be described hereinafter, either opening maybe assumed as the inlet or outlet, I will for the more convenient description assume that6 isthe inlet and 7 the inlet port; and that 4 is the outlet and 5 is the outlet port.

The interior of the body is provided with a.

cylindrical valve seat 3 which, preferably, constltutes a whole circle. One end of the body is cast solid and the other or open end is closed by a head or bonnet 8 which is screwed or otherwise held in place,and may be provided with a suitable stuffing-box 9 through which the rocking stem 19 of the valve operating part extends.

The valve piece 12 is made as if formed from a segment of a cylinder, and has a curvature which exactly fits the curvature of the valve seat 3 of the body. It also has a cylindrical recess or socket13 arranged at its inner part and directed radially toward the axis of the rock shaft 14. The rock shaft 14 has a journal 18 at one end rotating in a bearing 11 in the closed end of the body 2; and its other end has a spindle or stem 19 which extends through the stuffing-box 9 and journaled in the bonnet or head 8 and in the annular gland 10 thereof which is especially adapted to compress the packing. The rockv shaft 14 also has a radial part 15 which is cylindrical on its end, and fits the recess 13 on the valve piece 12; and more over, has a recess or hole 16, in which a spring 17 is shieldingly located and adapted for pressing radially outward to force the valve piece against the valve seat.

A handle or crank arm 20 has a hub 21 fitting upon the end of the stem 19 and secured thereto by a pin 22; and also has a pointer 23 which restricts the throw of the crank arm by coming into contact with limit stops 25 on the valve body, and corresponding to the fully open 7 and fully shut positions. The pointer also traverses the scale 24 which is attached to the side of the body to indicate the relative positions of the valve. piece with respect to the inlet port. In Fig. 2, the valve is shown as closed and when the rock shaft 14; is rotated to the right, the valve is opened. The port 7' remains open all the time; and where a considerable steam pres sure is to be controlled, this is as it should be, because the pressure of the spring 17 is supplemented by the pressure of the steam to keep the valve piece 12 tightly upon its seat and prevent leaking. It will be manifest, however, that by a slight readjustmentof the handle upon the stem, the valve piece may be made to control the port 7 instead of'the port 5'. Itis also evident that the steam or gas may be admitted by the port 5 in cases where a low pressure or a vacuum will prevail in some types of apparatus. If a vacuum is present on the port 5, the valve piece 12will' be forced upon its seat as before, but by the superior atmosphericpressure. If" a low pressure were exerted'in the port 5, then the spring 17 would have to be sufficiently strong'to hold the valve piecein position. In this casealso, any loose play between the parts, 15 and 12 will permit the valve piece to act as a safety valve or check valve to relieve any excessive pressure. While these reversal arrangements of the valve may be suitable for special uses, the ordinary use will assume the steam or other pressure to be exerted within the chamber of the body and to hold the valve piece'upon its seat as first above described.

The valve piece has its edges sharp at the ends of the curved surface and these act excellently as scrapers for removing any scale or deposits which may become deposited upon the valve seat; and this may at any time be removed by rotating the valve piece fully within the valve body, as hereinafter described.

It will be noted that Ihave provided the gland or bushing lO with notches 29 and the hub 21 of the crank arm with crown projections 30 which, when the-crank arm is removed, may, by reversing the hub, engage the notches in the gland and be employed as a wrench to screw it in or out for adjustment. I also provide the body with a boss 26 (Figs. 2 and 4) and this provides an. opening with branch apertures 28 into the surface of: the: valve seat 3, through which a lubricant may be. introduced, or. oil and flowers ofemery of other vitreous substance forv enabling the. regrinding of the valve pieceto its seat when necessary. lthe opening: in the boss may be closed normally by a screw plug 2 7. When stop lugs 25, and then rotated to carry the valve piece through 860 and thereby grind the whole interior valve seat. It will be understood, however, that while it is not necessary to fully rotate the rock shaft and valve piece, the best regrinding will be secured by complete revolutions, as in such case all surfaces will receive the same treat ment. iVhen the regrinding has been accomplished, the crank arm is readjusted to its original position andthe valve is then restricted as indicated by the indicator plate. ltlwill be understood that the position of the pin hole. in the hub 21 of the crank arm should. be such that, when the arm is reversed, the projections 30 will not engage the gland notches 29, as otherwise the arm could not'be rotated without disturbing the gland.

I have shown my improved valve in the form I have found satisfactory in practice, and while ll prefer the details thereof to be made as shown, I do not restrict myself thereto, as such details may. be modified without departing from the spirit of the invention.

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is

In a-valve, the combination of a body having a cylindrical shaped valve seat through which a port extends, and said body also havinga second port opening into its interior, a removable head forming a closure for said body and provided with an apertured'flange projecting into the interior of said body to form a bearing, a rock shaft journaled' at one end in said-body and at the opposite end journaled in said flange bearing and extending to the outsideof the body, a valve piece having a curved contacting surface conforming to the contour of the cylindrical seat and also having a recess oppositely disposed with respect to said curved surface, a radially disposed tubular projection formed integral with said shaft and having substantially the same diameter as. said shaft, said projection having its open end within said valve piece recess, a spring. located'within said radial projection andfbearing against said valve piece. suitable packing within portion of said lead and. encircling said shaft, a crank arm secured to the stem of said rock shaft for moving said shaft from one position to another, and means to limit the movement of said crank. arm in either direction.

In testimony of which invention, 1 hereunto set my hand.

GEORGE P. HAYNE. Witnesses:

P. J. VVALSH, F. PRICE.

Copies-of this patent'znay 'b'e obtainedforfivecents each. by addressing the Commissioner of Patents,

Washington, D. G.

Images