US1814534A - Gas cock - Google Patents

Description

July 14, 1931. VAN ETTEN 1,814,534

GASJIJOCK' Filed April 4, 1928 L IT. 1. .1

1 I" 11 T 7 Fig.1.

SCOTT VAN En??? $7,; BB I M 4 A Gttornegs Patented July 14, 1931 'I'ES PATENT OFFICE SCOTT VAN ETTEN, OF MARYSVILLE, OHIO GAS COCK Application filed April 4, 1928. Serial No. 267,291.

This invention relates more particularly to valves for gas burning stoves, ranges and the like. Heretofore surh valves have been provided with an elongated notch in the case and a pin in the plug to limit the movement of the plug from closed to open position and conversely. Such a construction was not only expensive to manufacture but was also unsightly and the pin was often likely to break off.

The object of the present invention is to provide an improved and simplified means for limiting the movement of the plug whereby the cost or" production is lessened and the limiting means substantially concealed thereby enhancing the appearance of the valve.

The invention is embodied in the example herein shown and described, the feature of 29 novelty being finally claimed.

In the accompanying drawing Figure 1 is a view mainly in side elevation of a valve according to the preferred form of the invention with a part in section.

Fig. 2 is a section on the line IIII Fig. 1.

Fig. 3 is a fractional section on the line III-III, Fig. 2.

In the views 5 designates the valve casing containing the usual tapered seat for the 39 tapered plug 6. The casing has the usual threaded connections at 7 for the gas supply and an ordinary valve-seatcontaining cap at 8 for the supply of gas to the burner.

In the present instance the plug above the gas passage 15 therein is provided with a peripheral groove 9 of generally semi-circular cross section and extending about a quadrant around theplug with one of its terminals in line with one of the ends of saidgas passage and its other terminal in a line at right angles to said passage. In the valve casing and in the plane of said groove 9 are lorme'd two sockets 10 and 11 with which theterminals of the arcuate slot can be coincided. These sockets are extended to therim of the casing as shown by broken lines in Fig. 1, so that by placing a hard ball 12 in the arcuate slot in line with the entrance to the socket while the plug is partly but sufliciently removed from the seat and then shoving the retained in the socket.

The ball, it will be observed, serves as a stop to limit the oscillation of the plug by the handle 13.

When said ball is secured in the socket 11, as above described, the operation of the handle 13 is right handed, so called, to close the cock and when placed in the socket 10 the operation is left handed to close the cook.

The forms and relative positions of the parts canbe changed without departing from the gist of the invention as claimed.

What I claim is:

1. In a rotary valve including a valve casing having a plug seat and a plug to fit in said seat, one of said parts provided with a single segmental groove lying entirely below the plane of the entrance of the casing and the other With two sockets spaced apart a distance substantially equal to the distance between the terminals of the groove, and a stop member adapted normally to occupy jointly said groove and one of said sockets to limit the oscillation of the plug for right or left hand operation, according to the socket occupied by the stop, for opening and closing the plug in said seat.

2. In a rotary valve including a valve casing having a plug seat, a plug to fit in said seat and a stop member, said plug provided with a single segmental groove lying entirely below the plane of the entrance of the casing and said casing having elongated sockets forming entrances for the stop member to the casing,

said stop member adapted normally to occupy jointly said groove and one of said sockets to limit the oscillation of the plug for right or left hand operation, accordber, for opening and closing the plug in said seat.

SCOTT VAN ETTEN.

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