US919992A - Valve-controlling mechanism. - Google Patents

Description

P. L. WORMBLEY, JR. VALVE CONTROLLING MEGHANSM.

APPLICATION FILED JUNE 6, 1908.

919,992. Patented Apr. 27, 1909.

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919,992. Patented Apr. 27, 1909.

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PHILIP LIGHTFOOT WORMELEY, JR., OF WASHINGTON, DISTRIGT OF COLUMBIA.

vsLvE-coNTnoLLING MGHANIsM.

Specification of Letters Patent.

Patented April 27, 1909.

Application led June 6, 1908. Serial No. 437,120;

To all whom it may concern.'

Be it known that I, PHILIP Lierrrnoor` WoRMnLEY, J r., a citizen of `the United States, residing at Washington, District of Columbia, have invented certain new and useful Improvements in Valve -Controlling Mechanisms, of Which the followingis a specification.

This invention relates to valve controlling mechanisms and more particularly to interlocking devices whereby the opening of one valve locks and prevents the opening of another valve and vice versafl The object of-my invention is to provide an interlocking valve mechanism, so as to avoid the formation of an explosive material in a gas generating apparatus. The construction being such as to interlock the generator blast valve which controls the admission of air to the generator, with the bottom generator take-off valve (hereinafter referred to as bottom gasvalve),l through which the gas passes from the generator to the'carbureting chambers. This interlocking 'of 'the valves referred to is accomplished by my valve controlling mechanism in such a way as to prevent the opening of either valve as long as the other valve is open or artially open, or in other Words, toprevent tlie possibility of both valves being open at the same time.

Another object of my invention, is to provide an interlocking valve mechanism which with slight modifications of details, such as the use of rocker arms or bent levers, which-' ever may be found necessary, it is also possible to interlock the stack or take-ofi valve with the carbureter or superheater blast valve in such a Way that the closing of the stack valve will lock and prevent the opening of either of the'said blast valves, and the opening of either of the blast valves will lock and revent the closing of the stack valve.

V 1th these objects in view and such others as may hereinafter appear, my invention consists in the particular construction of the various parts, and in the novel manner of combination and arrangement of said parts, all of which will be more fully described and s ecificallyv pointed out in the appended c aims.

In the drawingsl forming a art of this s ecificationz-Figure 1, is a sie elevation il ustrating my invention as applied, Fig. 2, is a similar view illustrating a modified form, and Fig. 3, illustrates another modified form.

Fig. 4 is a side elevation illustrating a modified form.

Referring by numerals to the drawings, 1 re resents one of the valves and 2 the other va ve, each rovioled with a valve stem 3 and 4. Pivotal y attached to the valve stems, 3 and 4, by collars, or other suitable means 5, are levers or arms 6, which are connected as shown at 7, at which point may be provided a small wheel or roller 8, all connections being such that the levers or arms, are free to move and adjust themselves to any position of one valve, provided the other valve is closed. Bolted or otherwise secured to the bonnets of the valves, 1 and 2, is a guide or abutment member 9, constructed of a section of channeliron or other suitable material, said guide having its legs parallel to the valve stems 3 and 4, and being bent at 10 and 11. The said valve stems may project through apertures therein. The center 12, of said guide being bent above the levers or arms to arcs of circles 13 and 147 in opposite directions of radii equal to the length of levers or arms, plus the necessary clearance. This guide is strengthened at its central portion by a tie rod 15.

It will be clearly seen by referring to Fig. 1, that if an attempt should be made to open both valves at the same time, the connected ends of the levers 6, Would come in contact withthe central portion 12, of the guide and make such movement impossible. Either one of the valves, say 2, may be raised, however and the levers will take the position as indicated in dotted lines, and in case an attempt is made to raise the other valve the connected ends ofv the levers will come in contact with the guide or abutment member and make such a movement impossible.

In lieu of the guide or abutment member above described, the levers 6, may be pro vided With circular projections or wings 16, secured upon the ends of the levers connected to the valve stems as clearly shown in Fig. 4. In such a construction, I provide 'stirrups or other stops 17 Which are bolted or otherwise `secured tothe bonnets of the valves, said stirrups or stops being adapted to receive the circular projections or wings upon the arms 6, the construction being such that the tip of one wing will pass under the stirrup or stop, as soon as the other valve begins to open, thus locking the valve which is closed and vice versa. Any convenient obstruction may be placed just above the l jointed ends of the levers 6, to prevent the possibility of raising both valves at the same time. I do not consider this necessary however, since one man can operate but one valve at a time.

ln Fig. 2, l have shown a modiiied form of my invention wherein any two valves such as 1 and 2 may be so connected by my imroved interlockine valve mechanism as tov P e lock and preventing the opening of valve 1, by closing valve 2, and to lock and prevent the closing ,of valve 2 by opening valve 1. lt is only necessary in this instance to interpose a rocker arm 18 pivoted at 21, between the end of one of the levers 6, and the valve stem 4. When the valve 2 is closed, the levers 6, and rocker arm 18, take the position as shown in heavy lines, thus making it impossible to open the valve 1 as long` as the valve 2' remains closed. if the valve 1 is open, valve 2 being` already open7 the levers 6 and rocker arm 18 will take the position as indicated in dotted lines, thus making` it impossible to close valve 2, as long as valve 1 remains open.

In Fig. 3, l have shown another modified form wherein any two valves whose stems are not parallel may be so connected to my improved interlockingI mechanism to lock one valve by the opening or closing,1 of the other valve. ln such cases it will only be necessary to interpose a bent or bell crank lever 19 pivoted at 22, and a conneetin` rod 20, between the ends of one of the levers 6, and the stem of the valve 2. T he arrange ment illustrated in Fig. 3, is such that the opening of the valve 2, locks and prevents the opening of the valve 1 or vice versa. It' it is desired to lock valve 1 by closing valve 2, it is only necessary to change lever 19 to the position marked 24 and pivoted at 23. Then when valve 2 is closed, the levers 6 `and lever 24 take the position as shown in dotted lines, thus making it iin possible to open valve 1 so long` as valve 2 remains closed. lf valve 1 is opened, valve 2 being already open, the connected ends oi' levers 6. will move to the right thus making` it impossible to close valve While l have shown and described my invention as applied to gas machines l wish it to be distinctly understood that l (lo not limit myself to such application, nor do l limit myself to the exact details ol construction as illustrated and described, since 'various minor changes maybe resorted to without sacriiicing any of the principles or advantages ot my invention.

Having thus described the various lcatures of my invention, what l claim as new and desire to secure by vLetters Patent, is'.--

l. ln an interlockingY valve meclnmism, the combination with valves and valve stems, ot' arms pivotally connected to the said valve stems and to each other, an ahulment member cooperating v-:ith the said arms, said abutment member being,` adapted to lock one of the valves and prevent movenent, while another is being moved to open or closed position, substantially as speeilied.

2. ln interlocking` valve mechanism, in combination with the valve stems, arms pivotally connected to the said valve stems and to each other, a guide l'or emitrollinj;` the movement ol the said arms, said guide heine; formed to arcs of circles diverqinpr in oppoR site directions, substantially as described.

3. ln an interlocking valve mechanism, in combination with the valves and falve stems, said valves and valve stems being;` in any relative position, arms and levers pivot ally connected to the said valve stems and to each other, an abutment member eo peraling` with the said arms and levers so as to lock and prevent the closing ol one valve so long as the other valve remains open or partly open, substantially as speci'lied..

4. ln an interlmking` valve mechanism, in combination with the valves and valve stems, said valves and valve stems leiingr in any relative position, arms and levers pivot-- ally connected to the said valve stems, a guide for controlling` the said arms and levers so as to lock and prevent the opening` oll one 4valve so long as the other valve remains closed, said `euide being` lormed to ares oll circles diverging in opposite directions, suhstantially as speci'l'ied.

Pllllill lill'lil'lhtltl'l '(lllllllld'll', .llt Witnesses:

lNM. COLLIER, R. S. Amann.

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