US445642A - And robert ruddy - Google Patents

Description

(Model.)

L. KACZANDER & R, BUDDY.

INJEGTOR.

Patented Feb.3,1891.

BY m ATTUHNEY.

we mms Pcvem: co., morcHrrHo., wnsnmeran, n. c;

' UNITED STATES PATENT OEEICE.

LEOPOLD KAOZANDER, OF NEW YORI, AND ROBERT RUDDY, OF MOUNT VERNON, ASSIGNORS TO THE NATHAN MANUFACTURING COMPANY,

OF NEW YORK, N. Y.

INJECTOR.

SPECIFICATION forming part of Letters Patent No. 445,642, dated February 3, 1891.

Application led December 24, 1890. Serial No. 375,700. (Model.)

To @ZZ whom it may concern.-

Beit known that we, LEOPOLD KACZANDER, of the city, county, and State of New York, and ROBERT RUDDY, of Mount Vernon, in the county of Westchester and State 0f New York, have invented certain new and useful Improvements in Injectors, of which the following is a specification.

This invention relat-es to injectors designed for use on locomotive-engines, and more particularly to such as are termed non-lifting injectors -that is, in which the water-supply tank is higher than the water-inlet opening to the injector, so that the water will freely flow to the injector by `gravitation, without the, aid Aof a vacuum, as in socalled lifting injectors.

The purpose of this invention is'to make this kind of injectors simpler in operation and more effective and reliable under adverse circumstances.

In non-lifting injectors as heretofore constructed the overflow of the injector, through which the surplus water is allowed to escape atvthe start, has been placed, as has the injector itself, below the lowest level of the supply-tank. This practice makes it necessary to close the water-regnlating valve of the injector whenever the injector is stopped in order to prevent the loss of water which otherwise would result from the owing out of the Water from the tank through the overliow. Again, this practice results in great loss of water inpstarting the injector, since after the water-valve is opened it takes some time to adjust it to its right position relatively to the steam-pressure carried, and during this time the water issues freely through the overflow; and again, even after the water-supply has once been regulated in proportion to the steam-pressure used, this regulation will be destroyed as soon as the injector stops, because whenever the injector' is .stopped the water-regulating valve must be closed, as j nst explained. Consequently the watervalve must be newly adjusted at every start of the injector. Furthermore, the overflow being situated out of sight, the engineer or fireman of a locomotive finds it very difficult to ascert-ain whether the injector has started promptly 5o or not. All these drawbacks to the use of non-lifting injectors are successfully overcome by our present improvements.

Another defect of non-lifting injectors is that when, through some defect in the stealnvalve of the injector, steam leaks into the water-supply pipe heating the water the in jector is very difficult to start. IVe have discovered that by emyloying a priming-jet, similar to the lifting-jets in lifting-injectors, 6o this difficulty is successfully overcome.

Our improvements will be more clearly understood by reference to the accompanying drawings, of which Figure l is a vertical longitudinal section through the injector. Fig. 6: 2 shows on smaller scale as much of a locov motive and tank as is necessary to illustrate the relative positions of the injector, its overflow, and the level of the water in tank.

A is the body of the injector, preferably 7o cast in one piece.

B, C, and D are the usual connections for the steam, water supply, and delivery t-o boiler.

In Fig. l the steam-pipe is shown as connected with the side of the body of the injector. In Fig. 2 this pipe is shown as coming from the back of the body to avoid confusion.

E is the steam-nozzle; F, the priming-jet; 8o G, I'I,'and I, the usual intermediate, condensing, and delivery nozzles.

At .K We employ an ordinary check-valve to prevent the backliow of water from the boiler.

The priming-jet F is cast in one with a valved disk L, which controls the admission of steam into nozzle E, and this disk is again seated for another valve M con trolling the admission of steam into nozzle F. Valve Mis 9o preferably made in one with screw-spindle N, which is guided in an ordinary bonnet and stuffing-box O. Into the upper end of disk L screws the nut P, which limits the movement of valve M, and by means of which valve L is lifted when the spindle is screwed out to its full limit. On the top of screwspindle N is what is called a universal joint Q, from which rod R with a handle S extends into the cab of the locomotive to be conveniently operated by the engineer.

The admission of water to the injector is controlled bya valve T and screw-spindle U, which is also provided with a universal joint Y and extension-rod V', which again at a suitable point in the cab is provided with a handle W for operating it. In all these particulars thein j ector does not differ materially from the one for which Letters Patent of the United States No. 387,599 Were granted to us on August 7, 1888.

At a point X of the body of the injector where ordinarily the overflow would be attached, we screw a pipe Y, which we extend to a point situated above the highest level of the water in the tank of the locomotive-tender, as seen in Fig. 2, and at this elevated point we attach the overflow Z, which is provided with the usual check-valve a., to prevent the admission of air after the injector has been started, and with a screw-spindle b and arm c, by means of which the valve a may be tightly closed, if necessary. The arm c is so constructed that a rod d extending into the cab can be attached to it. The Water from the overflow runs, as usual, through a funnel c and waste-pipe f into-the ash-pan of the boiler of the locomotive.

It will be seen that by thusl elevating the overflow ot' a non-lifting injector above the highest level of the water in the tank, the water cannot be lost from the tank when the injector is not working, even if the water-valve Tis left open. The continuous handling of the water-valve is therefore not necessary and the loss of Water is avoided. The overilowvmay be placed in any convenient position for ready and convenient observation by. the engineer, and the proper start of the inj ector can be readily ascertained by him.

The operation of the injector is as follows: The water-valve 'I being open, the screw-spindle N-is turned about one-fourth of a turn by means of handle S. This will lift valve M from its seat and admit steam to nozzle F. Any hot water accumulated in the injectorbody itself and in pipe Y will be expelled through the overliow by this priming-jet F, and cool water from the tank will follow immediately. Vhen water appears atthe overflow, the spindle N is further turned, and when valve Mstrikes the collar P on top otv valve L this latter will be opened and steam admitted to nozzle E. Thecombined effect of the two steam-jets will be to force the water through nozzles G, II, and I with suicient velocity to enter the' boiler. The quantity of water delivered in proportion, to the steampressure will be regulated by valve T.

The present drawing shows a central priming-jet F and annular forcing-.jet E. This can be reversed and the primer made annular and the forcing-jet central.

Other details of construction may be varied Without departing from the spirit and principle of our invention.

We are aware that lifting-injectors have been made with a central or annular lifting4 flow in a non-lifting injector or to have vusedl in conjunction with a non-lifting injector an overiiow, so situated that when the watervalve is open water from the tank will not escape through it by gravity.

What is claimed as new, and desired tobe secured by Letters Patent, is

1. A non-lifting injector with an elevated overflow to retain the water in thesupplytank without the necessity of closing the water-valve, substantially as described.'4

2. A non-lifting injector withl a primingjet, when the overflowof the injector is so situated that the water will notescape through it by gravity, substantially as described.

3. A non-lifting injector with a primingjet, in combination withl an elevated overow, as and for the purpose set forth.

4. An injector situated below the lowest water-level in the supply-tank, withan overow situated above the highest Water-level.

inthe supply-tank, as and for the purpose set forth.

5. An injector situated belowk the lowest water-level in the supply-tank, with an over.-`

{iow situated above the highest water-level in the supply-tank, the injector and overflow communioatingthroughvan external pipe lead ing from the injector to the elevated overliow, asiandfor the purpose set forth.

6. An injector with a detached overdow,

situated at different levels and communicating with each other through an external pipe leading from the lower level ofthe injector to the higher level of the overflow, substantially as described.

In testimony whereof we aiiix our signatures in presence of two witnesses.

LEOPOLD KAOZANDER. ROBERT RUDDY. lVitne-sses:

JOOB W. MACK, CHARLES JUDGE.

IIO

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