US937505A - Steam-trap. - Google Patents

Description

M. J; BOYLE.

swam TRAP. I APPLIUATION I'ILED OUT. 5, 1908.

Patented Oct. 19, 1909.

WITNESSES I UNITED sT s PATENT oEEro MICHAEL JOSEPH BOYLE, OF NEW YORK, N. Y., ASSIGNOR OE ONE-HALF T0 WILLIAM SILLMAN, OE'NEW YORK, NY.

g STEAM-TRAP.

Specification of Letters Patent. Patented Oct. 19, 15%)9.

Application filed. October 5, 1908. Serial No. 456,275.

To all whom it may concern."

Be it known that-I, MICHAEL JosErH LoYnE, a citizen of .the United States, and a resident of the city of New York, borou h of Brooklyn, in the county of Kin s aiid State of New York, have invented a new and Improved Steam-Trap, of which the following s a full, clear, and exact description.

The object of the invention is to provide a new and 1mproved steam trap, which is simple and durable in construction, and very effective and automatic in operation, to periodically discharge the water of condensation.

The invention consists of novel features and parts and combinations of the same which will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention s represented in the accompanying drawings forming a part of this specification, in

which similar characters of reference indicate corresponding parts in both views. v Figure l is a sectional side elevationof the improvement; and Fig. 2 is a transverse section on the line 22 of Fig. 1, parts of the improvement being broken away."

The closed vessel A is provided at its top with a stutling box B, through which extends the steam supply pipe C, screwed or otherwise secured to the top plate D of a stand D employed for supporting the apparatus. The steam supply pipe C is provided with a head C connected by a pipe 0 with the apparatus on which the steam trap is to be used, so that the water of con densation accumulates in the vessel A.

The vessel A has an up and down slidlng movement on the steam supply pipe, C, and the sides of the vessel A are preferably provided with guide rollers E engaging vertical guides D arranged on the stand D, to guide the vessel A in its up and down movement.

Through the steam supply pipe C extends the water discharge pipe F,reach1ng to within a short distance of the bottom of the vessel A at the time the latter is in its uppermost position, as indicated in Fig. 1, and the upper end of the water discharge plpe F 1s secured in an elbow F attached to or forming an integral part of the head C, as mdicated in Fig. 1. From the elbow F leads a pipe F 2 to a suitable place of discharge, and in the pipe F is arranged a valve G on the valve stem G.

adapted to be opened by the action of a spring G on the valve stem G. The valve is normally heldclosed against the tension of the spring l by one end of a lever H engaging the outer end of the stem G, and thesaid lever H is fulcrumed on a bracket I attached to the pipe F and the other end of the lever H rests on a cross bar B connecting the extension bolts B of the stuffing box B with each other. Thus when the vessel A moves downward, the cross bar B moves away from the lever H, to allow the spring G to move the valve G into an open position, and when the vessel A moves upward the cross bar B imparts a return swinging motion to the lever H, so that the latter presses the stem G downward, thus closing the valve G.

The cross bar B is pivotally connected by a link J with a counterbalancing lever K, carrying an adjustable weight K and fulcrumed at K on a bracket D held on the stand D. The weight K is adjusted on the lever K so as to hold the vessel A, when empty, in an uppermost position, so that the valve G is kept closed by the action of the cross bar B on the lever H pressing Now when the accumulated water of condensation in the vessel A overbalances the lever K, then the vessel A moves downward, and in doing so the valve G is opened, as above described. When this takes place the pressure of the steam in the upper end of the vessel A forces the water of condensation up through the pipe F into the elbow F and by way of the pipe F to a suitable place of discharge, and when the vessel is relieved of nearly all of the water of condensation, then the lever K overbalances the vessel A, so that the latter is caused to move up to its normal position,

whereby the valve G is again closed. The above-described operation is then repeated, that is, when the weight of the water overbalances the lever K then the vessel A moves downward to open the valve G, as above described. A small amount of water is left in the vessel A, to keep the lower end of the pipe F sealed, with a view to prevent the escape of steam at the time the vessel A is emptied of the water of condensation.

From the foregoing it will be seen that the steam trap shown and described is very simple and durable in construction, is not liable easily to get out of order, and is arranged to periodically discharge the water of condensation as required.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. A steam trap comprising a closed vessel, a counterbalancing lever on which the said vessel is hung, a fixed steam supply pipe extending through the top of the vessel on which said vessel is mounted to slide up and down, the said pipe opening into the said vessel at the upper end thereof, a fixed water discharge pipe extending downward through the said steam supply pipe and opening into the said vessel at the lower end thereof, a valve in the said water discharge pipe, a spring for opening said valve when the vessel moves downward, and a lever for controlling said valve, the said lever being actuated to hold the valve closed against the tension of its spring when the vessel moves upward.

2. A steam trap comprising a closed vessel, a weighted lever, means including a cross piece carried by the vessel for suspending the vessel from said weighted lever, a fixed steam supply pipe, opening into the said vessel at the upper end thereof, on which the said. vessel is mounted to slide up and down, a water discharge pipe extending through the said steam supply pipe and into the said vessel to within a short distance of the bottom thereof, a valve in the said water discharge pipe, and a lever having one end extending above the said opening into the said vessel at the lower end thereof, a spring-pressed valve on the said discharge pipe, and a lever connected with the said cross piece and engaging the stem of the said valve to hold the same normally closed against the tension of the valve sprin 4. A steam trap comprising a closed vessel, a counterbalancing lever, a steam pipe opening into the vessel at the upper end thereof, a water discharge pipe extending into the said vessel and opening near the bottom thereof, a valve in the said water discharge pipe, a spring for opening said valve, lever for controlling said valve, a support extending above the vessel and carried thereby, and a connection between said support and the counterbalancing lever, the said valve controlling lever resting on said support and being actuated by the up and down movement of the vessel.

5. A steam trap, con'iprising a closed vessel provided at its top with a stufiing box. a counterbalancing lever on which the said vessel is hung, a steam pipe extending through the stufiing box and opening into the vessel at the upper end thereof, the said vessel having an up and down sliding movement on said pipe, a head on said steam pipe provided with an elbow at its top, a steam supply pipe connected with said head below the elbow, a fixed water pipe extending downward through the steam pipe into the vessel and reaching within a short distance of the bottom of the vessel when the latter is in its uppermost position, the said water pipe being secured at its upper end in said elbow, a discharge pipe leading from the elbow, and a valve in said discharge pipe, controlled by the up and down movement of the said vessel.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

MICHAEL JOSEPH BOYLE.

Vitnesses THEO. G. Hos'rnn, JOHN P. DAVIS.

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