US121487A - Improvement in faucets - Google Patents

Description

MARSHALL BURN ETT.

Faucets.

No.' Patengggnec. 5,4871.

suddenly upon its seat.

UNITED STATES PATENT OEEIoE.

MARSHALL BUENETT, or BOSTON, MASSACHUSETTS.

IMPROVEMENT IN F AUCETS.

Specication forming part of Letters Patent No. 121,487, dated December 5, 1871.

To all whom it may concern:

Be it known that I, MARSHALL BURNETT, of Boston, of the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Faucets; and do hereby declare the saine to be fully described in the following specication and represented in the accompanying drawing, of Which- Figure l is a side view, and Fig. 2 a longitudina-l section of a faucet provided with my invention. Fig. 3 is an elevation of the valve, its stem, and elastic diaphragm, as removed from the body of the faucet.

The said faucet is what is termed a self-closin g faucet, it being opened by turning its screw-key by hand, and closed when the hand is removed from the key by pressure of the liquid that may be at the time within such faucet.

In other self-closing faucets a sprin g is used to effect the closing of the valve, but in my faucet there is applied to the valve-stem and case an elastic or ieXible diaphragm havin g a diameter greater than that of the valve or the dischargeopening of its seat. This diaphragm not only stops any water from escaping upward through the cap or top of the case, but admits of the necessary vertical movements of the valve, which,

` While in the act of being closed, is drawn upward to its seat. There is also beneath the diaphragm and around the valve-stem a chamber provided with a small hole through its bottom, such chamber and hole being for the purpose of causing the valve to close gradually rather than The faucet may or may not be provided with a filter or strainer arranged below the valve-seat in manner as shown in the drawing.

In such drawing, the body or valve-case of the faucet is shown at A as formed or provided with an induction-tube, a, a valve-seat, i, and an eduet, b, arranged as represented. The valvestem B is disposed vertically in the body A, and

at its lower end it is provided with the valve C and at its upper part with a screw, c, of long pitch, to work in a corresponding female screw, j', formed in the key d.. rlhe said key is so combined with a cap, e, screwed into the top of the body A as to be capable of being revolved within such cap and upon the upper screw of the valve-stem. The elastic diaphragm shown at D rests on an angular ridge or seat, j", and is surmounted by a ring, g, which is forced down upon the diaphragm by the cap e While screwed into the case. Below the diaphragm, and having a prismatic hole, i, through its bottom to receive the valve-stem and prevent it from being revolved by the key while the latter may be in the act of being turned either way, is the chamber E, hereinbefore mentioned, the hole in its bottom being shown at h. While the valve is being depressed or opened by the key the elastic diaphragm will be forced downward into the chamber E and will expel threfrom, through the hole h, any liquid that may be in such chamber. On the key being set free the water or liquid under pressure below the diaphragm-chamber will gradually be forced through the hole h into the chamber, and, pressing against the diaphragm with a force greater than what is exerted on the valve will force up the diaphragm and raise the valve up to its seat. Vere it not for the chamber E and its hole IL the valve would be closed suddenly, whereby the momentum ofthe iiuid moving toward the faucet might be caused to damage or burst the conduit leading into the faucet. The strainer or lter is shown at lo as arranged in the 'upper part of eduet b.

The value and advantage of my faucet relatively to those self-closin g faucets in which the valve is closed by a spring will be easily appreciated by plumbers and others.

I am aware of the-faucets shown and described in the United States patents 66,57 9, 117 ,908, and make no claim to any thing, arrangement, or combination described in either.

My faucet differs from that shown in either of such patents, inasmuch as the induct of my said faucet is between the valve-seat and the elastic diaphragm and the latter has exposed to the upward pressure of the Water a surface greater in area than that of the opening of the valveseat, in consequence of which arrangement and construction of parts the valve is raised up and closed upon its seat b v the greater pressure against the diaphragm and not by the elastic power of a spring or by such and the pressure of the water, as is the case in the faucets shown in such patents, the valve in each of such faucets being in the induction-tube, Whereas the valve of my faucet is in the nozzle or eduet.

In neither of the patented faucets is there an an elastic diaphragm, a short tube of India rubber bein g employed as a spring to raise the valvestem and form a close joint or joints to prevent escape of Water out of the upper part ofthe valvecase. Neither elastic tube operates like the elastic diaphragm of my faucet, which, by its inherent elasticity and the pressure of the Water, raises the valve up to its seat against the pressure of the water tending to force it off its seat. In the patented faucets the elastic tube operates in no respect to raise the valve against any pressure of Water tending to force it off its seat. Consequently,

Witnesses R. H. EDDY,

` J. R. SNOW. (167)

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