US434080A - faulkner - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. G. S. PAULKNER, Decd. FAULKNER, Administratrix. AM AOTUATED VALVE. No. 434,080. Patented Aug. 12, 1890.

III III lllllnllllllll UNITED STATES PATENT OFFICE.

HATTIE FAULKNER, OF INDIANAPOLIS, INDIANA, ADMINISTRATRIX GEORGE S. FAULKNER, DEOEASED' ST EAM-ACTUATED VALVE.

SPECIFICATION forming part of Letters Patent No. 434,080, dated August 12,1890.

Application filed May 24, 1890- Serial No. 352,994. (No modelli- To all whom it may concern:

Be it known that GEORGE S. FAULKNER, deceased, during his lifetime a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, did invent certain new and useful Improvements in Steam-Actuated Valves, of which the following is a specification.

The object of said invention is to procure a valve which will be automatically operated and which will be simple and inexpensive in construction.

Said invention relates to that class of valves which are especially adapted for use with steam-pumps.

It consists in formingin a cylindrical valve (which fits closely within asteam-chest transversely and extends nearly throughout its entire length) such a series of ports as will enable it not only to deliver steam to the main cylinder, but to itself, thus constituting it in itself substantially a piston, whereby the ports which extend through it are opened and closed.

The peculiar construction of this valve and, the number and arrangement of the ports therein will be hereinafter more particularly described and claimed.

Referring to the accompanying drawings, which are made a part hereof, and on which similar letters of reference indicate similar parts, Figure 1 is a top or plan view of a steam-pump provided with said invention; Fig. 2, a side elevation of the same; Fig. 3, a longitudinal vertical sectional view, looking toward the left from the dotted lines 3 3, through the steam-chest valve and immediately adjacent parts, on an enlarged scale; Figs. 4, 5, 6, and 7, transverse vertical sectional views looking toward the right from the dotted lines 4 4, 5 5, 6 6, and '7 7, respectively, in Fig. 3; Fig. 8, a fragmentary longitudinal section on the dotted line 8 8 in Figs. 4 and 5, showing the by-paths in the body of the steam-chest cylinder and the depressions and orifices in the valve at one end, which constitutes the valve construction, whereby said cylinder or main valve is itself operated; Fig. 9, a similar view of the corresponding parts at the other end on the dotted line 9 9 in Fig. 7; Fig. 10, an under side plan of the valve separately, and Fig, 11 a plan of the entire surface of the valve asit would appear if flattened out.

In said drawings, the portion marked A represents the pump; B, the steam-cylinder by which it is operated; C, the steam-chest; D, the valve, and E a transverse shaft by which said valve is given a slight rocking motion during the operation of the pump, as will be hereinafter explained.

The pump A-and main operating-cylinder B are, or may be, of any usual or desired construction. They are not peculiar to the present invention, and therefore will not befur ther described herein, except incidentally in describing the invention. The piston-rod B extends from one to the other, as is usual in pumps of this character, and secured to this.

piston-rod is an arm B by which, through suitable connecting rods and arms, one of the operations of the valve is effected, as will presently be more fully described.

The steam-chest or valve-cylinder O is, as shown, cylindrical in form and contains the valve D, which, as before stated, is substantially equal in size to the internal diameter of this cylindrical steam-chest. In addition to the usual construction there are several by-paths c c c 0 formed in the wall of this steam chest or cylinder, (constituting, with corresponding openings in the valve, ports for operating said valve,) through two of which live steam passes to the ends of the valve, and thus operates it, and through the other two of which said steam exhausts. As in ordinary steam-engine Work, the live-steam port or by-path at one end is in operation while the exhaust-steam port or by-path on the opposite end is in operation. A convenient means of forming these by-paths or ports is to drill in from the ends of the cylinder the required distance and then drill through transversely into these ports ateach end. The ends of these openings will then be covered by the cylinder-heads when placed in position, and therefore the little spaces between the nearest transverse holes and the cylinder-heads (shown in Figs. 8 and 9) are useless except as a convenience in making the machine. In large machines these openings may be better cored out. In Verysmall machines it may be necessary to drill through from the outside of the cylinder, especially at the inner ends'of these openings, and then plug the holes on the outside. This is also shown in the drawings, (see Fig. 5;) but it will be understood, of course, that these are mere mechanical expedients and are not essential to the invention. A live-steam pipe 0 is shown as coming in at the top of this steam chest or cylinder, and an exhaust-steam pipe B is shown as leading from the side of the main cylinder B near its top. The valve D at its extreme ends is a solid cylinder. Interiorly it contains a chamber D, which'terminates in the live-steam. ports 19, and a chamber D the ends of which are exhaustports at. An opening 0 extends up through its top from the chamber D and communicates with the live-steam pipe 0, as shown most plainly in Figs. 3 and 6. This opening is larger than the pipe, in order that the communication may always be free, notwithstanding the movement of the valve. So far as the live-steam and exhaust ports are concerned, they are'simple and easily understood to any one familiar with such matters.

Centrally at the bottom side and extending into the chainberD is a slit S of the form shown most plainly in Figs. 10 and 11, the diagonal ends 8 s of which come in contact with the arm e on the shaft E, hereinafter described, whereby this valve is rocked somewhat from side to side, as will be presently explained. In the outer surface of this valve D are long narrow depressions, as shown most plainly in Figs. 10 and 11, which terminate in holes (1, d 02 and (1 extending through the shell of the valve into the chambers D D and which correspond with the by-paths c c c c, and, with said by-paths, form small ports and valves by which the large or main valve D is itself operated. Two of these holes d (1 one at each end, extend through into the live-steam chamber D, while the other two d d extend through into the exhaust-steam chamber D Small notches d and d are cut in the extreme ends of the valve, on the corners thereof, and in line with the holes (1 d, for the purpose of affording a more certain ingress for the live steam into the space behind the ends of the valve, when said valve is at its extreme position nearest the heads of the steam-chest. Now supposing that the valve D is turned so that the hole (1 registers or is in line with the inner hole leading into the by-paths c, it will be apparent that a small amount of live steam will pass from the live-steam chamber D by way of the corresponding depression con nected therewith, through this hole and this by-path to the end of the valve, between it and the head of the steam-chest, which will have the effect to force the valve toward the other end of the steam-chest. When the valve has nearly reached the end of its stroke in the other direction, the diagonal slot in the underside comes in contact with the arm e on the shaft E, carrying the valve and throwing the hole d (or its depression) and the hole or by-path 0" out of registry, at the'same time throwing the hole (1 (or its depression) and the hole or by-path 0 into registry. The exhauststeam openings d c are also brought into registry, and thoseviz., d c which were before in that condition are thrown out of registry or cut off, and this operation is continually repeated. Itwill be observed that this rocking inder, and as a part of said ports, but also as live and exhaust steam ports for itself.

The shaft E passes transversely through the downwardly-projecting portion cast on the under side of the steam chest or cylinder, and has mounted thereon an arm e, which extends up into the diagonal slot in the under side of the valve. This arm is securely and fixedly mounted on said shaft, as shown most plainly in Fig. 5. At the outer end this shaft is connected to an arm E, which in turn is connected by a connecting-rod E to the arm B on the main piston-rod B. This is sov adjusted that the motion throws the arm into exactly the position which it is required for properly operating the valve. The arm E is preferably connected to the shaft E by means of a quadrant E and by means of this quadrant, as will be readily understood, any degree of adjustment may be effected, and the adjustment may be varied so that the valves formed by the holes d, &c., and their depressions, and the by-paths c, &c., may be thrown into or out of operation at varying periods, and the travel of the valve thus regulated. The arm 6 by this movement (which is given it through the rock-shaft E, which in turn is driven from the piston-rod) operates to shift the valve more promptly than if it were stationary. Having this movement, it also permits the diagonal slot to be larger than if it were stationary, admitting of a greater range of adjustment. There isan adjusting-slot in the arm E at its lower end, where it connect-s to the rod E, as shown most plainly in Fig. 6, and thus the distance through which the rock-shaft and consequently the arm 6 moves can also be correctly adjusted. A bolt a having a thumb-nut thereon, is the preferred means of connecting the quadrant E and the arm E while a center-head bolt, having a nut on its outer end, is the preferred means of connecting the arm E and the connecting-rod E all as shown most plainly in Fig. 6.

Having thus fully described the said inven IIO tion, what is claimed as new, and desired to be secured byLetters Patent, is-- 1. In combination, a cylindrical steamchest provided with the ordinary ingress pipe and ports, and a cylindrical valve of the same diameter as the internal diameter of the steamchest, but of somewhat less length, and provided with live and exhaust steam chambers, and a series of openings and by-paths in the shell of the steam-chest and in the valve, a diagonal slot also in said valve, and an upward projection or arm adapted to engage with said slot, whereby as said valve is reciprocated by the action of the steam it is also rocked by means of said arm or projection and a different set of perforations and bypaths brought into registry, substantially as set forth.

2. The combination of a cylindrical steamchest provided with four longitudinal perforations, two at each end, one of each of which is adapted to receive live steam and the other to permit the escape of exhaust-steam, a cylindrical valve fitted within said steam-chest and provided with a live-steam and an exhaust-steam chamber, depressions in the surface of said valve, and perforations extending from said depressions through into saidchambers, said depressions being arranged to register with the holes leading into the bypaths in the steam-chest, whereby a small amount of steam may be conducted through said depressions and openings and by-paths to the end of the valve and said valve thussaid valve and connected to the mechanism A of the engine and carrying an arm which extends up into said diagonal slot,'said shaft being adapted-to be rocked oppositely to the motion of the valve and said arm thus operated to shift the valve more promptly, substantially as set forth.

4. The combination of a cylindricalvalve having supplementary ports, whereby it is itself operated, a diagonal slot therein, a rockshaft having an arm whereby said valve is rotated, a quadrant on the shaft carrying said arm, and an arm adj ustably connected to said quadrant and also connected to the moving .part of the machine, whereby the movement of said shaft and of the arm engaging with the valve may be adjustably determined, substantially as set forth.

5. The combination of a cylindrical steamchest having longitudinal perforations or bypaths extending in from its ends parallel with the valve-opening therein, said by-paths communicating at either end with said valve-opening, and a valve fitted in said valve-opening and provided with a live-steam chamber and an exhaust-steam chamber, and having longitudinal depressions on its outer surface adapted to alternately register with the openings communicating with said by-paths, and means whereby said Valve may be rocked to cause the ports or depressions in its surface to alternately register first with one set of bypaths and then with the other, substantially as described, and for the purpose specified.

In witness whereof I have hereunto set my hand and seal, at Indianapolis, Indiana, this 21st day of May, A. D. 1890.

[L. s] HATTIE FAULKNER,

Aclmim'stratriw of the estate of George S.

Faulkner, deceased. Witnesses:

CHESTER BRADFORD, JOSEPH H. FAULKNER.

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