US631650A - Valve mechanism. - Google Patents

Description

Patented Aug. 22, I899.

L. MARBACH. VALVE MECHANISM. (Application fiXed. Mar. 11, 1898.)

(No Model.)

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ENITED' STATES PATENT FFICE.

HERMAN L. MARBACI-I, or LORAIN, OHIO, ASSIGNOR OF ONE-HALF TO ORVILLE P. MOON, or SAME PLACE.

VALVE ME CHANISM.

SPECIFICATION forming part of Letters iPatent No. 631,650, dated August 22, 1899. 'Application filed March 11, 1898. Serial No. 673,457. (No model.)

T0 in whom it may concern.-

Be it known that I, HERMAN L. MARBACH,

'a citizen of .the United States, residing at Lo- 1 enable others skilled in the art to which it ap- I pertainstomake and use the same.

My invention relates to valve mechanism, and is here shown as applied to vapor-burners; but it may be used elsewhere as well.

case to the burner-and to allow only a cer-l tain quantity of fluid or liquid to be retained in the stand-pipe until a' portion is used up.

This assures a more regular feed or supply of the fluid than is otherwise attainable and prevents an overflow thereof through the needlevalve, thereby obviating all possible danger from waste or explosion on this account, as: well as also avoiding disagreeable annoyances resulting from such overflows.

In the accompanying drawings, Figure 1- illustrates a vapor burner connected to a stand and feed pipe, as is usual in this art, With the valve mechanism at its bottom in section. Fig. 2 is a sectional elevation of the lower part of the so-called stand portion of the mechanism, enlarged, and the feedpipe with my improved valve therein, the valve and its parts being also in vertical section. Fig. 3 is a similar View to Fig. 2, but showing the valve mechanism only partly in section and open to the inflow of liquid. Fig. 4B is a modification wherein Weights are used instead of springs, as shown in Figs. .2 and 3.

A represents a hydrocarbon-burner, such and provide an automatic valve E withinrthe stand-pipe B to control the flow of the liquid. The said valve E is dependent for its position on the quantity of liquid in the stand-pipe B and is opened, primarily, through a floating weight F in the stand-pipe subject to rise and fall with the oil, and, secondarily, the valve is subject to the springs 5 and 7, the weight F being of such size and displacement as to rise and fall with the liquid as it is first fed in and then converted into vapor, as explained farther on. When the valve is open,

the liquid flows in past the same, and as the The object of the invention is to automatically control the inflow of the fluidin this liquid rises in the stand-pipe and partially submerges the weight F it causes the weight 'a portion of the liquid in the stand-pipe has been converted into vapor and carried off the weight descends again and opens valve E,

and the liquid is again free to flow into the stand-pipe to a certain height, when the valve is again closed, as in the first instance, and this is automatically repeated while the burner is in operation. The construction of the valve E to accomplish this end is as follows: A tube 2 is attached to the feed-pipe connection 0, and a valve-seat'3 is provided at the bottom thereof for said valve. The valve itself has an upwardly-extending stem 4, with an enlarged head at the top thereof, (also marked 4,) and said head closes and is free to slide in the top of the guide-tube 2. A spring 5 is interposed between this head and the lower portion of the tube 2, and the spring 5 keeps the valve normally closed until opened by the sliding cover 6, which is directly engaged by the weight F. The cover 6 sleeves over the stem 2 and is free to slide up and down thereon, and a spring 7 is located in the bottom thereof, which bears against shoulder 8 in the cover and the collar 9 on the outside of stem 2. A screw 10 through cover 6 below the collar 9 limits the upward movement of the cover in respect to the other parts. Openings 12, located at the The weight F is of such size and displacement as to rest at all times on the top of cover 6, and the object of the spring 7 is to keep the said cover a suflicicnt distance awayand above the head of the spindle, so that a fairly free up-and-down movement of the cover and weight can be accommodated without striking the head of stem 4, and thereby cause the valve to open, even though it be but momentarily. This momentary opening of the valve is liable to occur through the vibration, sh aking, and possible uncertain foundation of the stove unless some such means as described are provided.

lVhen a certain portion of the liquid within the stand-pipe B has been converted into vapor and allowed to escape, the weight F will press the cover or casing 6 down until its top strikes the head of the stem 4- and opens valve E. The liquid will then flow into the standpipe until it lifts the weight up high enough to allow spring to close valve E.

In Fig. 4 a modification is shown which substitutes connterweights in lieu of springs 5 and 7. In this case there is pivoted to the top of valve-stem i a cross-piece 14:, which rests normally on the top edge of tube 2 and carries a counterweight 15, suspended from the outer end thereof. A counterweighted arm 16 is pivoted at the side and top'of tube 2 and has an extension 17 above its pivot on which the weight F normally rests, the same as it does 011 cover 6 in Figs. 2 and 3, and the counterweighted arm 16 and 17 serves all the purposes of cover-casin g 6. \Vhen the weight F descends,it offsets the counterweight of arm 16, which at the most is very light, and the weight F then in its further descent strikes the extremity 18 of cross-piece 14 and the valve E is depressed and opened.

\Vhat I claim is 1. A vapor-burner having a supply-pipe, a

spring-pressed valve controlled by the rise and fall of the liquid within said pipe, a cover over the valve-stem arranged to bear on the stem to open the valve, and a weightadapted to operate the cover to open the valve, substantially as described.

2. A vapor-burner and oil-supply pipe beneath the same, an upwardly-seating valve in said pipe to control the flow of the liquid to the burner, a cover over said valve in said pipe, a weight in the oil-supply pipe adapted to bear on said cover, and separate springs connected with the said valve and cover to raise said parts, substantially as described.

3. A vapor-burner and an oil-supply pipe therefor, in combination with an inlet-tube in said pipe having a valve-seat at its bottom and a valve and valve-stem in said tube, a weight in said pipe above said valve-stem and means between said stem and said weight to take up the vibrations of the weight and thus prevent accidental opening of the valve, substantially as described.

4. A Vapor-burner having a stand-pipe sccured to the bottom thereof, and a supplypipe connected with the stand-pipe, in combination with a downwardly-opening valve in the supply-pipe, a free floating weight in the stand-pipe, a stem on said valve and means connected with said stem to hold the valve normally in closed position, and interposed mechanism between the valve-stem and the floating weight to take up the vibrations and prevent accidental opening of the valve, substantially as described.

\Vitness my hand to the foregoing specification this th day of January, 1898.

HERMAN L. MARBACII.

Witnesses:

.TAs. B. Hoon, O. P. Woon.

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