US1974464A - Gas cock - Google Patents

Description

sept. 25, 1934.

GAS" cocx Filed June 9. 1952 @EMM Adjacent its upper end, the stem 18 is provided with a threaded opening, indicated at 29, which receives the securing screw 30 for securing a suitable handle 31 thereto. The handle 31 is formed of bakelite, or a similar molded condensation product, and has the extending boss portion 32. This projecting boss 32 ts over the upper end of the valve stern 18, and is provided with an opening 33 for receiving the screw 30 to secure the gas cock handle to the stem 18.

At its upper end, the valve stern 18 is grooved, as indicated at 34, to receive the key member 35 carried by the handle 31. This key member 35, as shown in detail in Figure 6, is preferably formed of metal and may be stamped to the desired form. The key member 35 is provided With a cut-out portion 36 which engages inthe groove 34 formed in the valve stem. The ear portions 3'7 of the key 35 are spaced apart a distance equal to the diameter of the stem 18, and engage the lateral surface of the stem. The key 35 is embedded in the handle 31 at the upper end of the boss portion 32, as shown in detail in Figure 3', and is securely held therein as by molding it in place in the handle. This key serves to lock the handle 3l to the valve stem 18 for cooperating rotative movement, and distributes the stress occasioned in the handle 31 when it is desired to rotate the valve stem, which would be present if the key Were not provided, since the key distributes this stress along the portion of the key which isl embedded in the handle. In this manner, rotation of the handle to operate the valve stem 18 Will not produce great unit stress in the handle, and therefore the handle can be made of less dimension, While still retaining its strength.

In Figures 4, 5 and 7, I have disclosed a modied form of locking engagement between the valve stem and the handle. The handle 31 of' Figure 4 is adapted to receive a pin member 40", shown in detail in Figure 7, Which is carried by a projecting portion 41 of the handle 31', which portion 4l is disposed centrallyV of the opening formed in the boss 32 which receives the stem 18' of the valve.

CBSS.

As shown in Figure 5, the screw 30 serves to position the handle 31 upon the stem 1'8", and the stem isrgrooved, as at 42, for receiving the pin 40 carried by the projecting portion 41 of thehandle, and Which serves todistribute the stress ordinarily present upon rotation of the handle to turn the stem 18.

Itis thus apparent that I have provided a novel manner of securing a molded handle to the operating stem` of ai gas vcock or similar device', which handle is adapted vto rotatel they stem. Becausev of the distribution and consequent reduction of The ends of the pin 40 are firmly embedded in the handle adjacent the re the handle may be made in various forms, and need not be of the rectangular configuration shown in the preferred embodiment of the invention. Further, certain decorative effects may be produced by varying the configuration of the handle, Without departing from the scope of the invention.

I do not intend to be limited to the exact details shown and described in connection With the illustrated embodiment of the invention, but only insofar as defined by the scope and spirit of the appended claims.

I claim:

1; In combination, a rotatable valve stem having a groove extending across and opening from one end of the stem, a handle formed of a molded condensation product having an integral hub tting over the end of said stem, handle portions projecting radially from said hub, said handle having a groove disposed in the body of the handle and extending into said projecting handle portions and across the end of the stem when the handle isv in position on the stem, a metal key member engaging in the groove in the body vof' the handle and having a cut-out portion engaging in the groove in the end of the stem-and forming abutments for engagement with the op posite peripheral sides of the stem below the opposite endsl of the groove therein, *the opposite ends of said key member projecting laterally' from the stem and being embedded in theY projecting handle portion, and means disposed beneath said key member and engaging in said stern for maintaining said key member in engage-- ment Within said groove. Y

2. In combination, a molded handle comprising a cylindrical socket portion and a pair of integral handle portions projecting radially therefrom, a metal key member disposed within the baseiof said socket portionv and extending diametrically thereacross, the ends of Vsaid member being embedded in said handle portions, said member be'- ing entirely disposed within said handle and nonremovable therefrom, and a rotatable stem adapted to be engaged by said socket portion and having a diametrical groove across the engaged end thereof, said key member having a cut-away portion engaging insaid groove and' havingnormally extending abutment portions engaging the surface of said stem at each side of and belowl the axialV extent of said groove.

3. A metal key member' adapted for use with a rotatable stem having a diametrical grooveof constant depth therein and a handle member' having a socket receiving said stem, comprising a; planar member having extending end portions adapted to be embedded in Saidhandle', a cutaway central portion of constant section adapted: to engage in the groove in saidv stern, andv outwardly projecting abutment portions at each end of said cut-away portion extending normalth'ere-` to and adaptedl to^ engage the Yperipheral surface of said stem below the axial extentv of said groove-.

l @SCARy J. LEINs.

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