US1133601A - Ejecting device. - Google Patents

Description

R. WOOD.

EJEGTI'NG DEVICE.

APPLICATION FILED MAR. '1, 19-14.

' 1,133,601. Patented Mar.30,1915.

A ttest: Inventor:

.7 Atty other purposes,

level at whic ROBERT WOOD, OF BROOKLYN, NEW YORK, ASSIG-NOR TO NATHAN COMPANY, Oil's" NEW YORK, N.

mnracrname Y., A CORPORATION OF NEW YORK.

' EJEGTING :onvrcn. r

T all whom it may concern:

Be it known that I, RoBER'r Wool), a subject of the King of Great Britain and Ireland, residing. at 435 East Fourth street, Flatbush, Brooklyn, in'. the county of Kings and State of New York, have invented certain new and useful Improvements in Ejecting Devices, of which the following is a specification.

This invention relates to apparatus adapted to force water from a tankor reservoir on a locomotive-to a hose or similar conduit whereby it may be employed for various services, for instance fire extinguishing, forcing water into the boiler, sprinkling water on the coal, sprayingoil, paint or compounds .on machinery and for various and its novelty consists in the construction and adaptation of the parts as will be more fully hereinafter pointed out. y

The special adaptation of the apparatus more particularly in mind is the'sprinkling of the coal with water drawn from a tank on the tender. Coal on a locomotive is sub jected 'to such constantvibration that it tends to be splintered into fine particles resulting in the formation of dust which renders it unpleasant to handle and serves to retard its combustion. In order to overcome these disadvantages it is advisable that the coal should be sprinkled with water. 4 It is not always convenient to arrange the water supply system on a locomotive sothat water can be fed to a hose nozzle or a sprinkler, by gravity, and the particular application of the invention illustrated is the provision of means by which the water can be fed to a sprinkler as occasion may require, no matter what pressure there may be on the surface of the water Within the tank, or other source of sup ly, nor how much below the it may be used the mass of water may be situated.

In the drawings, there is illustrated a device embodying the invention, Figure 1 being a side elevation of the essential and relevant portions of the apparatus, Fig. 2 a longitudinal section through the same, Fig. 3 a view similar to Fig. 2, but showing the plunger in a different position, and Fig. 4 a detail of a modified form showing a nozzle secured to the lower end ofthe plunger. I

In the drawings, 10 is a casing preferably made substantially cylindrical in shape and Specification of Letters Patent. I Application filed March 7, 1914. Serial No. 823,240.

. purpose which Patented Mar. 36, 19315.

provided with a steam inlet port or aperture surrounded by a laterally extending annular flange 11 externally threaded whereby there may be connected to it a pipe 12 leading from asource of steam supply to such inlet port. It is also provided with a water inlet port or opening surrounded by a second annular flange 13 externally threaded whereby there may be connected to it a pipe 14 leading from the source of water supply to such port. At the bottom it is provided with an outlet openin below the level of the water inlet port an is expanded to form an annular flange 15 internally threaded and which flange is provided with a lower convex terminal surface 16. A fitting 17 which is restricted at its upper end and internally threaded is expanded beneath the threaded portion to form a concave surface 18 adapted to be engaged by the lower convex surface 16 of the casing. Means are provided as the nipple 19 whereby a hose may be attached to such fitting. The casing is restricted at 20 to form a shoulder or valve-seat at that point and at its lower extremity surrounding the outlet it is tapered to form a second valve-seat 21 for a will presently appear. At the upper part of the casing there is provided a cap or closure indicated at 22 suitably apertured and packed to permit of the passage of a stem 23 which is adapted to be moved by means of a lever 24 pivoted at 25 on a bracket 26 suitably secured to the casing or cap and which lever is, if desired, provided with a suitable handle (not shown).

'VVithin the interior of the casing 10 there is provided a phmger having two parts, namely an upperpart 30 adapted to fit within the unrestricted portion of the casing above the shoulder 20 and a lower part 31 adapted to fit within the restricted portion of the casing below such shoulder. The lower portion of the plunger is truncated at 32 to fit accurately within the seat 21 of the casing. The plunger is adapted to be reciprocated vertically by means of the lever 24 through the stem 23 which is secured to it. and this movement is limited by contact oi the upper portion of the plunger with the shoulder 20 and the lower frusto-conical portion of the plunger with the seat 21. Within the upper portion 30 of the plunger there is arranged a passageway 33 which is openat its side toward the annular flange 11 and is provided with a recess 3 1.arranged upon the same horizontal level as the opening 33 and is also open at the top. Within the lower portion 31 of. the plunger thereis a recess 35 having anopening toard the steam inlet opening substantially equal in width to such steam ;inlet opening and provided with a conduit 36 leading down to the bottom of the plunger.

In Fig. 4 there is shown a modified form of device in which an additional nozzle 40 having a relatively restricted passageway 41 is secured to the end 32 of' fthe plunger and adapted to reciprocate with' it. n such case the fitting 17 is preferably made of thev form shown in Fig. 4. This form of the apparatus with the additional nozzle produces a jet of relatively small cross-sectional area and hi h velocity whereby'water can be ejected om the apparatus 7 against a great pressure, for instance, into a boiler against the steam ressure.

The operation of the device is as follows: If it is desired to draw water from the reservoir through the hose secured to the nipple 19 the lever 24. is oscillated upon its pivot 25 lifting up the stem 23 to elevate the plunger so that the recess 35 is opposite the steam inlet in the flange 11 as shown in Fig. 3. The steam entering this recess passes down through the conduit 36 and creates a strong suction in the passageway 13 and pipe 1 t leading from the water supply. Thepressure upon the water, whether atmospheric or otherwise will draw "the water into the casing 10 and force it out through the aper ture in the fitting 17 and out through (the nozzle 19 into the hose or appliance adapted to receive it. At the same time it will be noticed that the passageway 33 is shut off from the steam entering through the annular flange 11. When a sufiicient quantity of water has thus been drawn from the reservoir the lever is reversed and the plunger is moved downward into the position shown in Fig. 2, and its upper portion 30 is seated firmly against the shoulder 20 of the casing as a valve-seat preventing any leakage of steam past the joint. At the same time the recess registry with the steam inlet and the steam no longer passes into it and down the conduit 36, but a small portion of it passes into the passageway 33. and upthrough the gland provided for that purpose into the space above the plunger and beneath the cap'or cover 22, thus putting a downward pressure upon the upper surface of the plunger tending to hold it firmly against the shoulder 20. At the same time, in its downward movement the outer wall of the plunger has passed by and eflectually closed the Water inlet opening from the through the pipe 14: and out 35.is moved out of through annular flange 13 and the conical surface 32 of the lower end pt'the plunger has fit snugly againstjtlielsifiiilar s oping surface 21 of the casing, farming at that place a second valve-seat.

-The process'of the recess 34 is to allow the steam to be driven into such recess when it enters the horizontal 'duct of the passageway '33fal'ld thus to deprive the steam of its velocity so that it will pass up through the vertical gland of such passageway into the] space'above the plunger with none of its pressure reduced but eprived of the whole or a great portion of its velocity. In a' somewhat similar way the recess 35 is extended slightly beyond the opening into the'conduit 36' and the steam entering such recess is. deprived of a part at least of its velocity. j f" a As a device of this character is used with steam at high temperature and often under great pressure and such steam willleak through very small apertures where the contacting surfaces are threaded, for instance, the lower' end of the casing 15 and the upper end efthe nipple 19, it will occur that; acids or other deleterious substances carried by the'steam 'will aliect the material of which theparts are composed and will cause the contacting surfaces to be pitted or corroded and thus permit a greater quantity of steam to escape. In order to avoid this result, I provide, as above described,

and the lealging and pittin referred to is thus substantially prevente I'claim: 7.

1. A device of the character described comprising a substantially cylindrical casing, \provided with an outlet opening, a valve seat surrounding said opening, the casing also having a water-inlet port, and a steam inlet port, in combination with a plunger adapted normally to contact with the valve-seat to close the outlet opening and simultaneously to close the water and steam-ports. R

2. A device of the character described, comprising a substantially cylindrical casing having three openings, an end outlet opening, a water-inlet port, and a steaminlet port, in combination with a plunger adapted to simultaneously close and open all three openings, and means for moving the 60 ports simultaneously, a longitudinal combination with a plunger adapted normally to contact with the valve-seat to close that opening and simultaneously. to close the water and steam ports, and means for mov- ,ing the plunger simultaneously to open the end opening inthe two ports, and means for permitting a leakage of steam from the steam-inlet port to one end of the cylinder to maintain "a yielding pressure on the plunger to hold it against the valve-seat'at the end opening. 1

i 4. In a device of the character described,.

: open all three ports simultaneously.

5. In a device of the character described, a casing closed atone end and open at the other end to form an outlet port where it is provided with a valve-seat, a steam-inlet port in the casing, a water inlet port also in the casing intermediate the steam-inlet and the outlet port of the casing, in combination with a valve adapted when reciprocated to open and 'close all, three ports simultaneously, and means for reciprocating the valve within the casing.

6. Ina device of the character described, a casing closed at one end and open at the other end to form an outlet port and restricted toform a valve seat surrounding said port, a steam-inlet a water inlet port in the casing intermediate the steam-inlet and the open end of the easing, in combination with a plunger adapted to be reciprocated within the casing, past the steam and water inlet ports and to and fro with respect to the outlet port, and means for reciprocating it including a hand operated lever.

7. In a device of the character described,

a casing closed at one end and open at the other end to form an outlet port and restricted to form a valve seat surroundin'g said port, a steam-inlet port in the casing, a

water inlet port also in the casing, in combination with a plunger adapted to be reciprocated past the'steam and water inlet ports and to and fro with respect to the outlet port, and means for limiting the extent of outlet port. v 8. In combination,

the movement of the plunger toward the a casing provided with an outlet port and two inlet ports, a plunger adapted to reciprocate to open and Khgse said a ertui'e port in the casing,

in the plunger having a lateral passageway adapted to register with one of the inlet ports. when the plunger is in one position, and a second longitudinal aperture having a lateral passageway adapted to register with the same inlet port when the plunger is in another position.

9. In combination, a casing provided with an outlet port and two inlet ports, a plunger adapted to'reciprocate to open and close all three ports simultaneously, a longitudinal aperture in the plunger adapted to register with one of the inlet ports ports are open, and a second longitudinal aperture in the plunger not communicating with the first aperture and adapted to register with the same inlet port when all three ports are otherwise closed.

10. In a device of the character described comprising a substantially cylindrical casmg, provlded with an outlet opening, a valve seat surrounding said opening, the casing also having a water-inlet port, and a steam inlet port, in combination with a plunger adapted normally to contact with the valve-seat to close the outlet opening and simultaneously toclose the water and steam ports and a nozzle with a restricted opening secured to and moving with the plunger.

11. In combination, a casing provided with a steam port and a water port and a plunger movable within the casing past both ports simultaneously to open and close them. 12. In combination, a casing provided with a steam port and a water port and a plunger movable within the casing past both ports simultaneously to open and close them, a seat within the casing and a cooperating part on the plunger whereby when the steam port is closed the leakage of steam toward the water port is prevented.

when all three 13. In 'combination, a casing provided ROBERT WOOD. Witnesses MARY H. LEWIS, HELEN V. Frrzmmon.

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