US294359A - boorman - Google Patents

Description

(No Model.) 3 Sheets-Sheet 2.

W. BOORMAN.- FLUID AOTUATED VALVE.

No. 294.359. Patented Mar. 4, 1884.

WITNESSES INVENTOR- fi mw Jay/a v Urvirn n S'rAjIr-Es PATENT omce.

WILLIAM BOORMAN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO CHARLES BERNHARD BEHRENS AND THOMAS SHERMAN, BOTH OF SAME PLACE, AND SIGMUND BEH- RENS, OF NEWV YORK, N. Y.

FLUlD-ACTUATED IALVE.

SPECIFICATION forming part of Letters Patent No. 294,359, dated March 4,1884.

Application filed October 11, 1883'. (N model.)

To all whom/71b may concern:

Be it knownthat 1, WILLIAM BOORMAN, a citizen of the United States, residing in the city and county of Philadelphia, in the State of Pennsylvania, have invented certain Improvements in Fluid Actuated Valves, of which the following is a specification.

My invention relates to a class-of devices known as steam-actuated valves, but is it 10 self a device which is capable of operation as well by water as by steam, and is, in fact, adapted for use with fluids generally. I

The object of the invention is the construction of an automatically operating out off I 5 valve in which the parts are fewin number, simple in construction, and not liable to get out of order, in which, moreover, the slide or cut-off valve is rendered automatically operative bythe action of the motive fluid. That fluid which I prefer to use is water, and in the accompanying drawings I have represented a vertically-erected main cylinder adapted for the operation of the bellows of an organ.

In the accompanying drawings, Figure 1 represents in central vertical front sectional elevation a preferred form of aconvenient embodiment of my improvement, the view being especially illustrative of the auxiliary cylinder, reversingchamber, and; the devices con- 3o nected therewith, the main cylinder and other Y parts of'the apparatus being but partially rep resented. Fig. 2 is a view siniilarto Fig. 1, but depicting the valve in a different position.

i Fig. 3 is a side elevational view of the entire 3 5 apparatus,representing the application of the cross-head, bifurcated lever, and slide-rods, which adapt the apparatus to the operation of, for instance, the bellows-lever of a churchorgan. Fig. 4 is a central vertical front sec- O tional elevation, similar to Fig. 1, with the exception that the main cylinder isrepresented intact, that the air-chamber, bifurcated lever, and connected parts are represented, and that an auxiliary valve of a modified construction is shown in place in the auxiliary cylinder.

Fig. 5 is a side elevational detail of the crosshead of the main-piston rod, representing the slide-rods at the moment when the cross-head,

having made contact with the lower studs upon said rods, has completed'the last portion of its travel. Fig. 6 is a view in perspective of an auxiliary valve embodying the modified In the drawings, and especially in Figs. 1, 2, 3, and 5, A represents a main cylinder, and B a main piston fittedtherein. O is the mainpiston rod, applied in any usual manner. The main cylinder may be of any preferred construction.

D D are induction-ports, and E an exhaustport to the main cylinder. v

F is the slide-valve, of the construction represented, or of any equivalent construction, which is adapted to control the induction and the eduction or exhaust ports of the main cylinder. The slide-valve is controlled and operated by an auxiliary valve, G, whereof hereinafter. V I

H is what I term an auxiliary cylinder, in the nature of a steam-chest rigidly connected withthe main cylinder, and being that chamber in which the auxiliary valve and slide-valve both operate.

Erected upon the auxiliary chamber is what I term a, reversing-chamber, I, in which is fitted for reciprocation the reversing-valve J.

K is the main inlet for the motivefluid, opening into the reversing chamber at the point shown.

Suitablyfitted for reciprocation in slidebearings '5, formed in the reversing-chamber, is the stem j of the reversing-valve J. In the arrangement of the apparatus represented, this stem, passing through a stuffing-box, i formed in connection with the outer of the slidebearings i, passes up and is connected by means of a link, L, with one extremity of a bifurcated lever, M, (pivoted in a bracket, m, erectport,) the forked extremities of which conveniently embrace the main cylinder, and are pivotally connected with the vertically-erected slide-rods N, which pass through slide-bearings in a cross-head, 0, carried by the pistonrod 0 of the main piston. The cross-head is provided with lugs 0, through the medium of construction represented in section in Fig. 4.

ed from the auxiliary cylinder or other sup I which pivotal connection is made with the lever of a bellows, or with the bellows arm, or akindreddevice. Theslide-rodsareprovided with an upper and a lower set of stops, 12;, which are respectively encountered by the cross-head in the travel of the main-piston rod, and caused thereby, through the instrumentality of the lever M, to intermittently move the reversing-valve stem j a predetermined distance, the result of which operation is that the reversing-valve J is caused to impinge against one or the other of two annular throats, P 1?, formed in the reversing-chamber upon opposite sides of the main inlet.

Leading from the reversing chamber at points exterior to its annular throats, into the auxiliary cylinder atpoints, respectively, near its respective extremities, are two inlets, Q Q, which may be formed as represented, and which serve for the introduction of the motive fluid from the reversing-chamber into the auxiliary cylinder.

In the form of parts represented the auxiliary cylinder is provided with a tubular or cylindriform bore, and the auxiliary valve is, as to the exterior contour of its extremities, cylindriform and correspondent in dimensions to the bore of said cylinder, so that itis adapted for longitudinal travel therein. The auxiliary valve is also longitudinally and axially channeled, to fit it to receive the stem 1* of what I term a reliefvalve, R R, the said capitals R R designating, respectively, valveheads upon the stem. The axial channel of the auxiliary valve is enlarged as to the extremities of said valve, so as to provide annular end chambers, g 9, between the inner walls of said valve and the stem of the relief-valve, and the body of said auxiliary valve is perforated with ports 8 s, as will be understood by reference to Fig. 1 of the drawings. The valvestem of the relief-valve is made sufficiently larger than the valve-heads R R to project beyond them, and to be adapted to be encountered by the heads of the auxiliary cylinder, or, as represented, by projections therefrom. This,- however, is a matter of mechanical construction, and the valves proper may be themselves formed so as to encounter the heads of the cylinder or other stops in the operation of the valve, hereinafter explained.

tis an outlet from the auxiliary cylinder, communicating with an air-chamber, T, which serves as a tension or pressure regulating or cushioning device, of service at the instant of the dead-centering of the slide-valve.

In Figs. 1 and 2 of the drawings the extremities of the auxiliary valves are represented as faced with a leather ring, as are also the interior faces of the annular throats in the reversing-chamber. This is simply to make tight contact with the valves which encounter the packed surfaces.

Such being a description of a preferred construction of apparatus embodying my invention, its operation will be readily understood.

Referring to the form of auxiliary valve shown in Figs. 1 and 2, and referring now especially to Fi 2, and assuming the main piston at the bottom of its stroke, (in the position shown in Fig. 1,) and the slide-valve, auxiliary valve, and relief-valve all in the position which they occupy at the moment when the fluid is first acting upon them, and as shown in said Fig. 2, and the reversing-valve at the top of its stroke, motive fluid, beingmdmitted through the main inlet K, passes through the throat P and the inlet Q to below the auxiliary valve and relief-valve, and acting against them together causes the upward" travel of the reliefvalve, auxiliary valve, and slide-valve as a connected whole up to the time at which the opposite extremity of the relief-valve or its rod encounters and is stopped by the upper head of the auxiliary cylinder, after which time it continues to act against the auxiliary valve until it has caused the completion of the upward travel thereof, as well as of the slidevalve which it carries, and has permeated around the head It of the relief -valve (as shown in Fig. 1) through the annular chamberg and the ports s to the induction-port D of the main cylinder.

In the above operation the fluid which passes through the ports 8 in the auxiliary valve completely fills the space surrounding said valve, and passes through the ports s into the annular chamber 9. Just before the completion of the upward travel of the main piston under the influence of the admitted fluid, the crosshead which the main-piston rod carries oncounters the upper set of stops upon the sliderods, lifts the slide-rods, deflects the bifurcated lever, and occasions the descent of the reversing-valve J, so that it makes contact against the lower throat, P, of the reversing-chamber. So soon as this reversal of parts is accomplished, the motive fluid, continuing its influx, passes through the upper throat, P, and the upper inlet, Q, to the upper side of the auxiliary cylinder, and acts against the upper head, R, of the relief-valve and the upper extremity of the auxiliary valve, which parts in the then position are in contact, to cause the reversal of the position of the said valves in the manner just described with respect to the opposite extremity of the auxiliary cylinder, and so, also, to occasion the descent of the slide valve, to give the lead to the exhaust from below the piston of the main cylinder. The operation. is identically the same whether the motive fluid be admitted to the lower or the upper compartment of the reversing-chamber and auxiliary cylinder.

In the last-described operation the descent of the main piston, piston-rod, and cross-head occasions the encounter of the lower set of stops 011 the slide'rods by the cross-head, and the consequent counter-deflection of the lever M and lift of the reversing-valve.

The office of the air-chamber in the operation of the device is to relieve a momentary pressure when the slide-valve passes the central point of its travel and closes the exhaust.

Fig. 4. The relief-valve does not encounter the cylinder-heads. In principle and opera tion this arrangement .of valve does not differ from the valve already particularly described, and represented in Figs. 1 and 2.

Having thus described my invention, I claim and desire to secure by Letters Patent '1. In a valve-chest, a slide-valve controlling the induction and eduction ports of the main cylinder, to which said valve-chest is applied,

in combination with an auxiliary valve fitted to reciprocate in said valve-chest, and provided with ports and a relief valve, substantially as described.

2. In combination, the main cylinder, the auxiliary cylinder, the reversing-chamber, the slide-valve, the auxiliary valve, the reliefvalve, and the reversing-valve, all arranged, constructed, and operating substantially as hereinbefore set forth;

3. In combination with the auxiliary cylinder, the air-chamber, substantially as and for the purposes specified. v

4. The combination of the auxiliary cylinder, the reversing-chamber, inlet-ports communicating between corresponding extremities of said cylinder and chamber, and an aira chamber, all substantially as set forth.

In testimony whereof I have hereunto signed 0 my name this 13th day of October, A. D. 1883.

- WILLIAM BOORMAN.

In presence of- J. BONSALL TAYLOR, F. NORMAN DIXON.

Images