US495286A - young - Google Patents

Description

(Model.) 2 Sheets--Sheet 1. E. Jt YOUNG. LOGOMOTIVB INJEGTOR.

UNITED STATES PATENT OFFICE.

EDWIN J. YOUNG, OF WADSWORTH, OHIO, ASSIGNOR TO THE OHIO INJEOTOR COMPANY, OF SAME PLACE.

LOCOMOTIVE-INJECTOR.

SPECIFICATION forming part of Letters Patent No. 495,286, dated April 11, 1893.

Application tlledDecember 17| 1892. Serial No. 455,482. (Model.)

T a/ZZ whom t may concern:

Be it known that I, EDWIN J. YOUNG, a citizen of the United States, residingY at Wadsworth, in the county of Medina and State of Ohio, have invented a certain new and useful Improvement in Locomotive Injectors, of which the following is a full, clear, and exact description.

One object of this invention is to provide an 1o efficient valve mechanism for controlling the steam supply to injectors; and another object is to facilitate the location and disassembling of the lifting, forcing and combining tubes.

The principle of the invention will be def scribed rst and the best mode in which I have contemplated applying that principle next will be set forth, and the part or improvement which I claim as my invention then will be particularly pointed out and claimed.

For the purposes of this specication I have shown and will describe my invention as designed for use on locomotives, but the invention is not thereby restricted to that single application.

2 5 In the accompanying drawings illustrating my invention, in the several gures of which like parts are similarly designated, Figure l is a longitudinal section with the left-hand end in half elevation, and showing the steam valves closed. Fig. 2 is a similar view of the steam valves and their adjuncts as' said valves ar arranged to admit steam to the lifter. Fig. 3 is a longitudinal section of the steam valves and their adj uncts as said valves are arranged when the injector is at work. Fig. 4 is a crosssection of the valve cylinder taken in the plane of line of Fig. l; and Fig. 5 is a perspective view, partly broken out.

In the example of my invention shown in the drawings, the water inlet a, suction chamber b, steam inlet c, and cylinder d for the steam valves are made in one casting. The water valve e may be of usual form. The steam valves f and g,the former being the 45 main valve and the latter the starter or teaser,-are arranged one withill the other; and the main valve f travels on radial longitudinal guides h on the cylinder, as more fully shown in Fig. 4. The main valve is tubu- 5o lar and one end is screwthreaded to receive the screwthreaded end t' of the valve-stem i', and this end is closed steam tight by said end rl. The rod t" extends up through a stuffingbox and gland d which close the cylinder d at one end, and the outer end of the said stem is connected by a yoke la with a lever la', which is fulcrumed on a lug d2 of the cylinder d; and said lever is provided with an operating handle k2, whereby the valve f maybe moved longitudinally in the cylinder CZ to and from 6ol its seatf in the steam jet Z. This steam jet is screwthreaded into the inner end of the cylinder d, and may be of usual construction. The starter or teaser g, so called, is a cylindrical, tubular valve, having circumferential collars g serving as guides and stops for the movement of the valve g with relation to valve f. Transverse openings g2 are made in the valve g, and said valve is made with a reducing nozzle or outlet g3 which is of such 7o length that, in all positions of said valve,

it projects into the steam jet, l, and said valveg has a conical end g4 which is fitted to a seat g5 in the steam jet Z. The valve g is fitted loosely in the valve f, so that when the said valve f is lifted from its seat f', steam passes through the holes g2 in the valve g and establishing an equilibrium between said valves holds the valve g to its seat in the steam jet until the water is lifted, as seen in Fig. 2, 8o when, by a further movement of the valve f, the valve g` is caught by its inner collar g by the shoulder f2 ofthe valve f and lifted from its seat, as in Fig. 3; that is to say, both valves are fully opened,`and full steam is admitted, 8 5 and the injector forces to the boiler. It will be observed that when the main valve f is closed, as in Fig. 1, it cuts 0E steam entirely from the injector and the valve g does not atv such time act as a valve. Inasmuch as van 9o equilibrium is established between valves f and g when starting, as in Fig. 2, it results that the operator does not have to hold open the valve f' during such starting.

The two valves, f and g, constitute an eX- ceedingly simple and equally effective means for starting or lifting the Water and continuing its flow or injection, and they arel of the essence of this invention; but I do not wish to be understood as limiting my invention to roo the exact details of construction of these valves, as it is obvious that other forms of valves, embodying the same principle of operation, may be employed for accomplishing the same result.

The bottom of the suction-chamber b is provided with a rabbeted outlet b which forms a seat for the flange of the lifting tube m.

The casing fn. is made with 'a flange n', in which is a rabbet n2, and when the said casing n is abutted against the lifting tube m, the said lifting tube is secured in between the said rabbet in said casing n and the rabbeted portion b of the suction-chamber. In order to secure the lifting tube in position, and also to unite the casing 'n and that portion of the casing containing the suctionchamber, &c., I provide bolts o, which pass through holes o in the flange n', and are provided with nuts 02, by which the two casings are securely joined, without the use of screwthreaded joints, as have been common heretofore in many forms of injectors.

The casing n contains the overflowr nozzle p, the annular overliow chamber p', and the overow valve p2, substantially as usual. The combining tube q has a tubular, cylindrical end q', whichltelescopes over the lifting tube m, and at its opposite end said combining tube q is provided with the ports q2, and an internally-screwthreaded, cylindrical portion g3, whereby the said combining tube is connected with the injector tube r, so that the said combining tube and injector tube are properly united as one piece, to be adjusted as such. In order to effect the adjustment of the combining tube, I provide the end of the casing 'n with a tubular nut s, which is provided with an internal liange s', to abut against the lange of the tube r. This nut s may be rotated within the tube n in order to adjust the combining tube, and I prefer to connect the nut s and the tube r so as to turn together, by means of transversely-placed pins r' interposed in holes or openings in the said tube and nut. At the boiler end of the injector the nut s is provided with any usual or approved check-valve t. It will be observed that by unscrewing the nut s from the casing n, the tubes q and r may be readily removed; so, also, it will be observed that by taking off the nuts o2, the parts of the injector may be readily separated. It will be further observed that these joints are the only external joints in the injector, and that thereby the construction of the injector is greatly simplified.

While I have shown and described my steam valve mechanism as applied in connection with peculiar forms of lifting tubes and combining tubes, yet I do not wish to be understood as limiting its application thereto, for

' obviously the said peculiar steam valve mechanism may be used in connection with other Y forms of lifting tubes and combining tubes. v

What I claim isl. In an injector, a steam-controlling valve, interposed between the steam inlet and the water inlet, and comprising a movable main valve and an auxiliary valve connected with said main valve and held in position to start the injector by steam pressure independently of the movement of the main valve and positively moved out of such position by a further movement of the main valve, the main valve and the auxiliary valve having independent seats in the steam jet, substantially as described.

2. In an injector, a steam jet interposed between the steam inlet and the water inlet, combined with a steam valve consisting of a main valve having a seat in the steam jet and adapted to be moved to and from such seat, and an auxiliary steam valve or teaser having an independent seat in the steam jet, and connected with said main valve, the main valve being movable independently of the auxiliary valve, and having a further movement which carries with it the auxiliary valve, substantially as described.

3. In an injector, a steam controlling valve mechanism consisting of a tubular, cylindrical main valve, open at one end and closed at the other, and an auxiliary valve or teaser arranged within the said main valve and proj ecting out of and closing the open end of such main valve, the said main valve being movable without moving the auxiliary valve, and adapted to receive a further movement, whereby the auxiliary valve is carried with it, substantially as described.

4. In an injector, a steam-controlling valve mechanism consisting of atubular, cylindrical main valve, open at one end and closed at the other, and an auxiliary valve or teaser arranged within the said main valve, the said auxiliary valve being also tubular and 'provided with transverse ports to admit steam to its interior, and adapted to operate substantially as described.

5. In an injector, the combination with the steam jet, and the steam and water inlets between which the said steam jet is interposed, of a steam-controlling valve mechanism consisting of a tubular main valve, closed at one end and open at .the other, and an auxiliary tubular valve, ported transversely, and provided with a nozzle projecting into the steam jet, the main valve and the auxiliary valve having independent seats in the steam jet, and the auxiliary valve being arranged within the main valve and movable thereby, substantially as described.

6. In an injector, the steam-controlling valve mechanism consisting of a main valve and means to move it positively, and an auxiliary valve yarran ged within the main valve and provided with transverse ports communicating with its hollow interior, and thereby opening communication between the steam inlet of the injector and the interior of the valve mechanism, and separate seats for the main valve and the auxiliary valve, substantially as described, whereby when the main valve is opened sufficiently to admit steam to start IOO IIO

Y the injector, the steam enters between the main valve and the auxiliary valve, and establishes an equilibrium of pressure between the said valves, thereby holding the main divided in the plane of the lifting tube, the

said parts of the said casing being constructed to receive a Iiange of thelifting tube between them, combined with such flanged litting tube, and bolts and nuts for uniting the said two parts of the casing and clamping the lifting tube in place between them, substan-l tially as described.

9. In an injector, the combination of the lifting tube, of tube q having a tubular, cylindrical end fitted to slide on the lifting tube, and a nut fitted to the boiler end of the injector and adapted to act upon the tube q to hold it in place, substantially as described.

10. In an injector, the combination of a lifting tube, the tube q fitted thereto, the tube r carried by said tube q, and a nut s tted in the boiler end of the injector and applied to the tube o", substantially as and for the purpose described.

In testimony whereof I have hereunto set my hand this `12th day of December, A. D. 1892.

EDWIN J. YOUNG.

Witnesses: v

AARON PARDEE, E. S. PARDEE.

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