US889648A - Steam-trap. - Google Patents

Description

R.IWA-RG.

STEAM TRAP.

APPLICATION rmzn JULY 15. 1907.-

W24 909M Q Zfl vz" PATENTED JUNE 2, 1908.

ROBERT WARG, OF MILWAUKEE, WISOONSIlV.

STEAM-TRAP.

Specification of Letters Patent.

Patented June 2, 1908.

Application filed. July 15, 1907. Serial No. 383,724.

To all whom it may concern:

Be it known that 1, ROBERT WARG, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Steam- Traps; and I do hereby declare that the following is a full, clear, and exact description thereof.

The object of my invention is to provide a simple, durable and eflicient steam-trap for radiators, steam-coils, heating-systems or the like, said invention consisting in certain peculiarities of construction and combination of parts as hereinafter fully set forth with reference to the accompanying drawing and subsequently claimed.

The accompanying drawing shows a longitudinal section view of a steam-trap embodying the features of my invention, with parts broken away and in section to more clearly illustrate the details.

Referring by letter to the drawing, A indicates a cylindrical casing and B a detachable head therefor, the casing being provided with a steam-inlet opening 0 and an outlet D, which outlet communicates with a hollow foot portion E of said casing.

The bottom wall of the casing is provided with a tappet-opening a, which communicates with the foot E, said opening being adaptedto receive the threaded end of a nipple F, into which nipple is tightly fitted a sleeve G as shown. This sleeve is preferably composed of hard copper, the upper edge of which forms a valve-seat, while the lower edge thereof abuts a shoulder 12 of the nipple. Seated upon the sleeve and forming a closure therefor is a solid tobin bronze plunger H, which plunger together with the hard copper sleeve comprises the trap discharge-valve. The plunger is provided with suitable guides c, 0, formed in a hood I, the lower open-end of the hood being threaded for the reception of a corresponding threaded shank of the nipple F, by which said hood is supported.

Condensation from the trap-casing is discharged through a series of 0 enings d in the hood I, the said hood being a so formed with an ear e to which is pivoted a slotted lever J, that is connected to the upper end of the plunger by means of a pin f, as shown. To one end of this lever is secured a stem 9 of a copper globe-float K, which is arranged to' open the valve when the condensation has -to permit clearance of the float, said well also serving as a cavity to receive any accumulation of mud or sediment.

The upper wall of the casing is provided with a dome M to permit rise of the float when acted upon by the condensation, said dome being tapped for a vent-cock N, while v the well L has a capped opening N therein for blow-off purposes, and a de ending support it as shown. The float is imited in its upward movement by a bridge-piece i of the lever, which bridge-piece is adapted to engage the ear e of the hood.

In order to positively open the valve, the casing-head carries a threaded stem 0, which projects in the path of the bridge-piece "i, and may be run in to engage the latter and thus lift the plunger from the seat, there being a hand-wheel j at the outer end of the stem for actuating the same.

From the foregoing description it will readily be understood that when the Waterline in the casing has risen to a suflicient height, the float will cause the valve to open, and thereby permit the condensation to flow freely through the hood and-thence to the outlet, until such time as the float has dropped to its normal or closed position, caused through the discharge of said condensation.

The particular advantage of the construction of discharge-valve described, is that the constant hammer of the hard metal plug upon the soft-metal valve-seat tends to smooth off said seat and in a measure retain a perfect fit between the arts so as to prevent leak of the valve. hould the seating of the arts however become imperfect through lbng wear or other causes, the same may readily be repaired, access being had to the valve by removing the head. This repair is accomplished by removing the hood and facingoff the sleeve with a file or other abrasive. The yoke and plunger may then be disconnected and said plunger also refaced, after which a dressing of emery and oil may be applied to its face. The hood can now be readjusted to the nipple and the plunger dropped into place therein, and by revolving the same upon the sleeve or seat with a slight pressure the grinding motion will cause the contacting faces to become perfectly seated with relation to each other. Thereafter the emery-paste is removed and the yoke being connected to the hood the mechanism is again intact. The above operation can be resorted to from time to time as required without incurring the necessary delay and expense in replacing the parts,

which heretofore has been the practice where valves of ordinary construction are used. As the valve-seat is gradually worn down through regrinding, it will cause a corresponding gradual sag of the float, which owing to the well formed in the ring, will not contact with the bottom thereof, the bridge piece 71 forming a stop as the float rises to prevent the same from striking the wall of the closure, as said valve is o ened.

The sleeve G is preferab y cut from a metallic tube section of standard consistency and molded or otherwise secured into the nipple, this construction being desirable for the reason that it is practically impossible to cast the same in one iece with the nipple and retain a uniform ensity of metal in all ni ples.

claim: 1. A float-valve comprising a nipple, a

sleeve fitted therein, an a' ertured hood in threaded connection with t e nipple, guides in the hood, a reciprocative plunger fitted in the guides and adapted to seat upon the sleeve, an ear projecting from said hood,a slotted lever ivoted to the ear, means connecting the p unger and lever, and a bridgepiece carried by the lever arranged to abut said ear.

2. A steam-trap comprising a closed casing having inlet and outlet openings, a ni ple secured to the outlet opening having a va veseat therein, a hood in connection with the nipple, a plunger valve-closure carried by the hood, an ear projecting from the hood, a float-lever pivoted to the car, a bridge-piece extending from the lever arranged to abut said car, an adjustable spindle in threaded engagement with the casing alined with the bridge-piece, float-lever and plunger valve.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee in and means connecting the 30 the county of Milwaukee and State of Wisconsin in the presence of two witnesses.

ROBERT WARG.

Witnesses:

GEORGE FELBER, GEO. W. YOUNG.

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