US796111A - Valve. - Google Patents

Description

,IINITED STATES PATENT orrron'.

Specification of Letters Patent.

. Patented. Aug. 1, 1905.

Application filed April 14, 1904. Serial No. 203,057.

' .To aZZ whom it may concern.-

Be it known that I, ARTHUR L. CANFIELD, a

: citizen of the United States, residing atNew York, in the county of New York and State of New York, have invented certain new and useful Improvements in Valves, of which the following is a full, clear, and exact specification.

This invention relates to valves, and has ref- 'erence more especially to improvements adapted to render valves more convenient of access 3 and manipulation.

loose after having once been placed in position,

According to this invention I have devised a separable extension which can be easily attached to the stem of any of the valves now in common use without requiring any modification or change in the valve itself. 1 This extension comprises a tubular stem adapted to be attached at one end to the valve-stem in place of the usual valve-handle and having means at the other end to which the valvehandle may be secured, together with means for holding the parts under stress, so that they cannot work loose, the whole forminga rigid and advantageous construction.

The invention will be more fully described in connection with the forms thereof shown in the accompanying drawings, in which- Figure 1 is a View, partly in section, show.- ing my invention applied to a radiator-valve. Fig. 2 is a View of a radiator having my invention applied thereto. Fig. 3 is a view similar to Fig. 1, showing a modification adapted for a different valve-stem; and Fig.

- 4 shows the use of the invention as applied to a radiator having a surrounding casing. Fig. 5 is a detail View of the bearing adjustment.

1 is the valve-body, containing any suitable valve mechanism and controlling the passage between the pipes 2 and 3.

4 is the valve-stem, threaded in the casing in the usual manner, by turning which the valve may be opened and closed. The valvestem 4 in valves as ordinarily constructed extends perhaps three or four inches from the top of the casing and has attached thereto the operating handle 6. The handles are attached to'the stem in various ways; but commonly by one or the other of the Ways illustrated herein in Figs. 1 and 3. In Fig. l'the end of the valve-stem 4 is squared and tapered,

I as at 5, and the handle 6 has a socket-plate 7,

containing a similar squared socket into which the end 5 of the stem 4 fits. The upper side of the handle 6 has a resilient washer 11, having a central hole through which ashort screw (not shown) passes and screws into a hole 8 in the valve-stem 4. This is one common way of attaching the handle 6 to the valve-stem 4. When it is desired to apply my invention to the valve-stem, so as to enable the valveto be more conveniently, operated, the handle 6'is removed from the stem 4 and a tubular sleeve 9, having the lower end flared and squared to fit the portion 5, is placed on the end of the valve-stem. 3 The upper end of the tube 9 is tapered and squared similarly to theend 5 of the stem 4, so as to fit the socket in the socketplate vi.

10 is a tension-rod threaded at both ends, one end adapted to be screwed into the hole 8 in the valve-stem and the other adapted to receive a nut 12 to fasten the parts rigidly together, or the nut 12 may be fastened on the rod 10. By screwing the nut or roddown suificiently hard the rod 10 will be put under tension and the tube 9 under compression,

thus forming a connection of great strength and rigidity, which may be adjusted to varying degrees of tension.

In Fig. 2 the radiator 14 has attached thereto an adjustable bearing-plate 13, through which the tube 9 passes in order to form a lateral support. In Fig. 5, 22 is a sliding plate carrying a bearing and adjustably attached to the plate 13 by a bolt 23. This is only necessary where an extension of unusual length is used. In Fig. 4 the invention is shown applied to a radiator 14, inclosed in a casing 21 and having a horizontal valve-stem. The casing may carry a plate similar to 13 where desired.

Fig. 3 shows a slightly different construction adapted for valves where the end of the stem is externally threaded, as at 16. In this constructionthe end of the valve-stem 4 is tapered, as before, and the socket-plate of the handle has a corresponding taper. A nut screws on the threaded portion 16 and against the plate or washer 11 to hold the handle in position. 17 'is a tubular coupling adapted to screw on the thread 16 and having a threaded hole 19 at its other end adapted to receive the rod 10. The lower end of the tube is flared and fits on the tapered portion of the stem 4:. The upper end is tapered to fit the socket in the handle, and the nut 12 on rod 10 binds all of the parts together, as heretofore desc'ri'bedin connection with Fig. 1.

It will thus be seen that my invention can be attached to any valve-stem without requiri-ng any modification in the valve itself and that a valve equipped with this invention can be much more conveniently operated than the ordinary valve not provided with this invention. ,Another feature of advantage is that it may be applied without requiring any change in the valve to valves now in use or in stoek, Modifications and changes may be made without departing from the scope of the invention,=and I do not desire to be limited to the exact construction which I have shown and described.

Having thu described my invention, I declarethat what 1 claim as new, and desire to secure by Letters Patent, is

1. The combination with-a valve-stem having an angular end, of a tube having one end shaped internally to fit said stem and its other end angularly shaped externally to receive a handle, a handle having a central hole adapted to fit over the end of the tube, and a tension-rod secured to the valve-stem at one end and bearing on the handle at the other end to secure the parts together, substantially as described.

2. The combination with a valve-stem having an angular end, of a tube having one end angularly shaped internally to fit said stem, and its other end angularly shaped externally to receive a handle, a handle having a countersunk central hole fitted to said tube, a resilient plate carried by said handle, and a tension-rod secured to the valve-stem at one end and bearing on the resilient plate at the handle end, whereby the parts are resiliently'secured together, substantially as described.

3. The combination with a valve-stem having an angular end, of a tube having one end angularly shaped internally to fit said stem, and its other end angularly shaped externally to receive a handle, a handle having a central hole fitted to said tube, a coupling-sleeve attached to the stem within the tube, and a tension-rod secured to the coupling at one end and bearing on the handle at the other end, whereby the parts are secured together, substantially as described.

In testimony whereof I alfix my signature in presence of two witnesses.

ARTHUR L. CANFIELD.

Witnesses:

JULIAN S. WOOSTER, L. R. SAGER.

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