US517056A - Territory - Google Patents

Description

UNITED STATES PATENT OFFICE.

DUN CAN MOGORMAOK, OF PARK CITY, UTAH TERRITORY.

VALVE.

SPECYFICATION forming part of Letters Patent No. 517,056, dated March 27, 1894. Application filed May 26, 1893. ,Serla1No.475,610. (No model.)

To all whom it may concern.-

Be it known that- I, DUNCAN MOCORMACK, a citizen of the United States, residing at Park City, in the county of Summit, Utah Territory, haveinvented certain new and useful Improvements in Valves; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon,whichform a part of thisspecification.

My invention relates to improvements in valves, for water and steam pipes and relates particularly to the character of valve known as reciprocating or cut off valves.

The object of myinvention is the provision of a valve of simple, durable and inexpensive construction which will not wear the seat and cause the valve to leak as is common in valves in general use and thus provide avalve which will be be efficient, lasting and practical.

To attain the desired object the invention consists of a valve embodying novel features of construction and combination of parts substantially as disclosed herein.

The present improvementscontem plate the provision of means for limiting the valve to endwise movement in the valve-shell, relative to its seat, and to the provision of detachable guide means which, when worn, can be readily removed from the valve shell, as access can be easily had thereto, and the worn part can be replaced by a new guide ring,-at a trlfllng expense, and the necessary close joints are thereby secured to properlylimit the endwise adjustment of the valve while the threaded stem is free toturn in its bearing to effect the endwise adjustment of the valve.

Figure 1 represents a vertical longitudinal sectional view of a valve constructed in accordance with my invention and Fig. 2 represents a perspective view of the parts of the valve detached to clearly show their construct1on. Fig. 3 is a cross sectional view on the line 00 a: of Fig. 1 to more clearly indicate the manner in which the guide ring is retained or held within the valve-shell and the valvehead guided within said collar.

Referring by letter to the drawings: A designates the shell or casing, having the usual inlet B and outlet 0, the seat D and the threaded collar E. The threaded collar receives the cap F, which also receives the smaller cap G both being provided with'an opening to receive the valve stem H, having the wheel or handle J for operating the same. The threaded collar E is provided with the interior aunular groove or recess K provided with the kerfs or notches K, and in the recess fits the ring L having the lugs L fitting in the kerfs or notches K','and further provided on the inner face with the kerfs or notches L which form guides for the cleats M on the head M carried by the end of the valve stem, and said head normally rests in and holds the'cupped valve N upon the valve seat,but when raised by turning the stem, which is provided with the threads J engaging the threads J the cupped valve will be forced up by the action of the water or steam and pass through the casing, as is evident. To shut off the valve it is simply necessary to turn the stem and the head thereon will descend into the cupped valve and force it snugly upon the seat.

It will be seen from an inspection of the drawings that the ring L is retained against rotary movement within the Valve shell by means of the lugs thereon fitting in the kerfs of the valve-shell and thus the valve-head M is free to have endwise movement within the ring L, but is prevented from turning around with the threaded stem because the latter is swiveled to the head and said head is, in turn, connected with the ring by its vertical feathers or lugs fitting in the kerfs or grooves on Y the inside of the ring. When the caps are removed from the valve-shell, ready access can be had to the interior thereof to take out the guide ring, if it is worn, and replace it by a new guide ring which will insure the proper movement of the valve; and as the valve is thus properly guided in the shell and held from lateral play therein, its face will not become worn to any appreciable extent, thereby promoting the durability and efficiency of the valve. It will thus be seen that the valve cannot possibly wear upon the seat as is the case with valves in general use and destroy the efficiency of the valve in a comparatively short period. It will also be understood that the parts of the valve are few and of simple and durable construction and thus an inexpensive, elficient and practical valve is proend and having the rounded end and cleats duced. for entering the kerfs of said ring, and the I claim as my invention-- cupped valve adapted to receive the said The Valve herein described, consisting of head; the parts being arranged and adapted I5 5 the shell having the inlet and outlet, the seat to operate as described.

and the threaded collar having the interior In testimony whereof I affix my signature in recess provided with the kerfs, the collar the presence of two witnesses. caps connected to the casing, a ring fitting in DUNCAN MCOORMAGK. said recess and having the exterior lugs and Witnesses: to the interior kerfs, the stern having the lower LEVI SNYDER,

reduced end, the head secured to the reduced MCOLELLAN YATES.

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