US568797A - Frank c - Google Patents

Description

FRANK O. SAPPER, OF ERIE, PENNSYLVANIA, ASSIGNOR TO THE SIMS COMPANY, LIIWIITED, OF SAME PLACE.

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SPECIFICATION forming part of Letters Patent No. 568,797, dated October 6, 1896.

Application tiled June l2, 1895. Serial No. 552,574. (Model.)

To @ZZ whom t 71mg; concern:

Be it known that I, FRANK C. SAPPER, a citizen of the United States, residing at the city of Erie, in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Injectors; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, forming part of this specification.

My invention consists in the improvements in injectors hereinafter set forth and explained, and illustrated in the accompanying drawings, in which-` Figure 1 is a side view in elevation of my improved injector. Fig. 2 is a longitudinal sectional view of the same. Fig. 3 is an enlarged sectional view of a portion of the same.

My invention consists in constructing a combined ejector and injector so that the opening of the steam-inlet valve operates, first, to let steam into the ejector, and by continuing the opening of the valve steam is afterward let into the injector and at the same time the overflow -valve is automatically closed. I accomplish this result by making the steam -inlet valve in two parts or sections, the first section of which is connected directly to the valve-stem and is seated upon the second section. The second section of the valve is also so connected to the rst section that the first section can be moved back from its seat .some distance so as to allow steam to pass through a central opening in the second section, but upon moving the rst section back farther it engages a collar on the second section and moves that section back from its seat so as to allow the steam to pass outside of the second section, and for moving the overflow-valve links are connected with a cross-arm on the valve-stem and to a crossarm on the stem of the overflow-valve, so that the overflow-valve moves forward and back in unison with the inward and outward 1novement of the valvestem.

Other features of my invention relate tov the construction of the injector and are set forth hereinafter in the specification and claims.

In the construction of my invention illustrated in the accompanying drawings, A is the body of the injector, having a steam-inlet B, a water-inlet O, an overflow D, and a discharge-pipe E, all of which parts are common in injectors.

In the body A, I make a steam-passage b, leading to the steam-inlet valve F F'. The iirst section F of this valve is secured directly to the inner end of a valve-stem II and is seated on a seat f on the second section F of the valve, which section F is seated on a seat a in the body A, and is provided with a tubular projection G, which telescopes into the enlarged opening gin the end of the ejectortube I, and through the center of the tubular projection G on the valve-section F there is a central openingf, through which, when the valve-section F is opened, the steam passes to the ejector-tube I and into the water-lifting tube J, which operate to raise the water up through the water-inlet. O and force it up through passage K to the injector-tubes L L', any surplus thereof ilowin g out through overflow-tube M and the overiiow-passages m and D. On the valve-section F is a collar F2, and on the valve-section F there is secured a skeleton sleeve F3, having an internal shoulder 711, with which the collar F2 engages when it has been moved back a suflicient distance to remove the valve F from its seat f, and as this movement is continued this engagement moves the valve-section F back from its seat a, allowing the steam to pass up through the passage etc the injector-tubes L and L and force the water on through the outlet-pipe E to the boiler. At the rear end of the tube M and the passage m is a valve N, which, when the steam-inlet valve F F is closed, isseated at n, so as toclose both the rear end of the tube M and the passage m. The stem N' of this valve N passes out through the rear end of the body A and has a cross-arm O secured 9 thereto, which projects far enough each way to receive the ends of links l?, which are secured to the ends thereof, and extend forward to a like cross-armv R on the valve-stem I"I,.to which cross-arm the other ends of the links IOO P are secured. This cross-arni is secured to the valve-stem II by means of collars, so that it has no longitudinal movement thereon, though the valve-stem II freely rotates therein, and on the sides of the body A are guidelugs p, which opera-te in slots p' in the links P to keep tllein parallel with each other. It will readily be seen that through the links P the longitudinal movement of the valve-stem H is communicated to the o\1*erilow-valve N, so that its movement toward and from its seat n is simultaneous with the outward and inward movement of the valve-stem I-I.

Having thus fully described in v invention so as to enable others to construct and operate the same, what I claim as new, and desire to secure by Letters Patent of the United States, 1s-

l. In an injector and ejector, the eolnbination, with the easing A provided with steampassages b and e, and water-passages C and K; of a lif tin g-tube J connecting the passages C and l, an injector-tube L projecting from the passage e through the passage K, a stationary ejeetor-tube I projecting within the tube J', a retractable valvestem II provided with a valve Il" and a collar, and a valve F normally elosin g the opening between the passages Z1 and e and provided with a valve seatf, a tube f' slidable in a socket in the ejector-tube I, and an open sleeve engaging with the collar on the valve-stem II, said valve stein operatin g when partially rctracted to permit steam to pass from the passage b, through the seat f, tube I and pipe J, to the passage K, and operating when fully retracted to permit steam to pass direct from the passage b, through the passage c, to the tube L, substantially as set forth.

2. In an injector and ejector, the combination, with the casing A provided with a steampassage b, and a water-passage C; of a lifting-tube .I connecting the passage C with the Water-outlet, a tube M arranged in line with the tube J and also communicating with the water-outlet, an overflow-passage D provided with an opening m connected with the wateroutlet, a valve controlling 4the passage of steam from the passage D through the tube J, a retractable stem II for operating the said valve, a valve N operating to close the end of the tube M and lthe opening m after the said valve has been fully opened, and links Pand connections operatively connecting the valve N with the valve-stem II, substantially as set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

. FRANK C. SAPPER.

lVitnesses:

HENRY Sins, Ill. A. STRONG.

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