US839777A - Steam-eliminator. - Google Patents

Description

No. 839,777. PATENTED DEC. 25, 1906. W. & J. LLOYD & S. T. NICHOLSON. STEAM ELIMINATQR. APPLICATION FILED MAY 7, 1906.

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No. 839,777. PATENTED DEC. 25, 1906.. W. & LLLOYD & S. T. NICHOLSON.

' STEAM IELIMINATOR.

APPLICATION FILED MAY 7, 1906.

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UNITED STATES PATENT OEEIOE.

WILLIAM LLOYD..JOHN LLOYD, AND SAMUEL T. NICHOLSON, OF WILKES-BARBIE, PENNSYLVANIA.

STEAM-ELIMINATOR.

Specification of Letters Patent.

Patented Dec. 25, 1906.

To Ml whom it may concern:

Be it known that we, WILLIAM LLOYD, JOHN LLOYD, and SAMUEL T. NIOEOLsON, citizens of the United States of America, residing at Wilkes-Barre, in the county of Luzerne, in the State of Pennsylvania, have invented certain new and useful Improvements in Steam-Eliminators, of which the following is a specification.

Our invention relates to improvements in steam eliminators or separators for the pur pose of eliminating water, entrained moisture, grease, oil, or other impurities from steam and automatically discharging such eliminated water, &c., without waste or loss of steam.

Our present invention is primarily in the nature of an improvement upon the steameliminators set forth in Patents No. 600,921, dated March 22, 1898, and No. 677,458, dated July 2, 1901.

The main object of this invention is to so improve the construction and mode of operation of the apparatus as to make its action in opening and closing more certain.

Other features of improvement will be disclosed in the following description.

In the accompanying drawings, Figure 1 is a vertical section of my improved construction of steam-eliminator. Fig. 1 is a crosssection of the main valve into the collectingchamber, showing a by-pass valve. Fig. 2 is a sectional plan on the .line 2 2, Fig. 1, but drawn to a reduced scale. Fig. 3 is a side elevation of the trip apparatus, drawn to a larger scale than Fig. 1 and with some of the parts in different positions from those of Fig. 1. Fig. 4 is a view of this trip apparatus from the reverse side in a section taken on the line 4 4, Fig. 5. Fig. 5 is a plan view of the trip apparatus, and Fig. 6 is a vertical section of a modification.

In Figs. 1 and 2, A is the baffle-chamber with steam-inlet B and steam-outlet O. Below is the collecting-chamber D with an intermediate valve E. In Patent No. 677,458 a gate-valve was described; but instead of the gate-valve we use a seated valve carried by a vertical spindle e, threaded at e and passing through a stuffing-boxy in the top of the casing and provided on the outside with a hand-wheel f, by turning which the valve E may be raised off or set down onto its seat F. This valve-seat is attached to or forms part of a flange F, which is clamped between the flanges of the baflie-chamber and the collecting-chamber.

The construction of the baffles will be clearly seen from Fig. 2. The bafiies include two corrugated plates 10, cast with or attached to the side walls of the baffle-chamber and set radially therein, and two transverse plates 11 11, with corrugated faces, these transverse plates being also attached to or cast with the body of the baflie-chamber and standing across the middle of the steam-passage through the casing. These corrugated baffle-plates 11 11 are provided with inner ribs 12, arranged radially of the vertical aXis of the bafiie-chamber.

We prefer to provide the collecting-chamber with a steam-actuated outlet-valve G, covered by a suitable perforated screen 13. This water-discharge valve G is carried on and opened by the stem 14 of the piston 15, which works in the short cylinder 16. This cylinder on one side of the piston is open through the passage 17 to the water-outlet 18. On the other side of the piston there is a connection through a passage 19 (indicated by dotted lines in Fig. 1) to a valve 20 in the steam-space of the collecting-chamber, and this valve is controlled by the floatandtrip mechanism to be described. A spring insures the closing of the valve G to its seat. In Patent No. 677,458 a slide-valve is shown to control a steam-passage, such as 19; but we have substituted for the slide-valve a seatvalve 20, as shown more clearly in Figs. 3 and 4. The valve 20 is carried by a lever 22, pivoted at 23 to the frame H, which is bolted or otherwise secured to some suitable part of the casing of the collecting-chamber. The valve is normally pressed to its seat by a spiral spring 24, acting on a collar 25 on the lower end of a spindle 26, which is pivoted at its upper end to the lever 22. The spring 24 bears at its upper end against the under side of the frame H, Fig. 4.

To open the valve against the action of this spiral spring 24, we provide a cross-shaft 27, mounted in bearings in the frame H and carrying at one end a weighted lever 28 and at the other end a crank 29, with crank-pin 30 engaging the forked lower end of the upright spindle 26.

On the outside of the fixed sleeve, through which the shaft 27 passes, Fig. 5, is pivoted the lever 31, which carries at its lower end the float 32. This float-lever has a pin-andslot connection with the weighted lever 28, as by a pin 33 on the float-lever working in a slot 34 in the forward extension 35 of the weighted lever.

Pivoted to a suitable part of the frame H is a weighted catch-lever 36, the purpose of which is to engage with the shoulder 37 on the weighted lever 28 when the descent of the float has tilted this lever 28 to the position shown in Figs. 1 and 3. The long arm of this catch-lever 36 is in such a position as to be acted on by a projecting piece, such as an antifrictionroller 38, on the float-lever when the float rises on a rise of water in the collecting-chamber.

In addition to the several parts named we provide a safety-catch 39, pivoted at 40 to the frame H and normally acted on by a spring 41, Fig. 4, tending to throw the lever to the position shown in that figure. The lower end of this lever 39 has a pin-and-slot connection with a link 42 on a crank 43, secured to the shaft 27. A screw 44 permits of an adjustment of this ,pin-and-slot connection.

The operation of the described device is as follows: When the water in the collectingchamber is at its lowest level, the parts will be in the position shown in Fig. 1, with the ballfloat down and the weighted end of the lever 28 tipped up and held by the catch-lever 36 in the position shown. The safety-catch lever 39 has also been drawn back at its lowest end by the crank 43 and out of engage ment at its upper end with the lever 22, carrying the valve 20, so that the latter is then firmly held to its seat by the spring 24. As the water accumulates in the collectingchamber the float will rise, and its antifriction-roller 38 coming into contact with the catch-lever 36 will throw the latter out of engagement with the shoulder 37 of the counterweighted lever. The weighted end of the latter will then instantly fall to the position shown in Fig. 4 and through its shaft 27 will lift the spindle 26 and lever 22 against the action of the spring 24 and raise the valve 20 from its seat. At the same time the simultaneous movement of the crank 43 on the shaft 27 will free the lower end of the lever 39, so that the spring 41 will throw the upper end of the safety-catch lever 39 under the nose of the lever 22 to maintain the valve 20 in the open position until suflicient quantity of water has been allowed to flow from the collecting-chamber to warrant the closing of the valve again. As the float descends its pin-and-slot connection with the lever 28 will elevate the weighted end of the latter and will lower its opposite end until the nose of the catch-lever 36 slips over the shoulder of the lever 28 and looks it in the position of Fig. l, as indicated in Fig. 3, and then immediately thereafter the lever 39 will have been pulled out from under the nose of the lever 22. We so adjust the parts that the action will be that describedthat is to say, that the counterweighted lever 28 will be locked for a certainty before the valve 20 is allowed to close.

On the larger machines the main valve E, opening into the collecting-chamber D, .is supplemented by a by-pass valve, as illustrated in Fig. 1 the purpose of which is to permit the equalization of the steam-pressure in the baffle and collecting chambers, and thus ease the raising of the main valve E. Lateral openings or a in the neck of the valve E admit the steam from the bafflechamber to the chamber X, and vertical openings b b in the valve-plate permit its passage into the collecting-chamber D upon the raising of the spindle 6 before the valve E is raised from. its seat. When the spindle e is depressed again, the head 0 will come to its seat and close the communication through the passages a a and b I).

In Fig. 6 we have shown a modification in which the water-outlet valve instead of being operated by the steam-pressure is operated by direct mechanical connection from the lever 22. This is accomplished simply by pivoting to the lever 22 in place of the steamvalve a long stem 45, having at its lower end a valve 46, adapted to a seat 47 in a piece 49, screwed or otherwise attached to the casing. We may also make provision for operating this water-valve by hand. For this purpose we may secure to the stem 45 a collar 51, on the under side of which bears a bent lever 52, whose other arm is acted upon by a stem 53, passing through a stufling-box in the casing, so that by inward movement of the stem actuated by a handle on the outside the valve 46 may be raised from its seat by hand, if desired. In this casing, Fig. 6, we have shown a different form of inlet from the baifle-chamber from that illustrated in Fig. 1. In Fig. 6 we have shown it as ada ted for a pipe connection, either to the bafflh-chamber or to any other source of water-supply. Immediately under the water-inlet 54 is a distributingplate 55, so that the full force of an inrush of water may not come directly onto the float.

We claim as our invention 1. The combination of a collecting-chamber having a water-discharge valve, with a weighted lever controlling said valve, a float cooperating with said lever, a safety-catch to hold the valve open while the float is falling, a catch-lever to hold the weighted lever up until tripped by the float, and a connection from the weighted lever to the safety-catch to operate the latter.

2. The combination of a collecting-chamber having a water-discharge valve with a spring actuated means tending to close the valve, a weighted lever to open it, a float controlling the lever, a safety-catch to hold the valve open while the float is falling and means to trip the safety-catch when the float has descended.

3. The combination of a collecting-chamber having a water-discharge valve with a weighted lever controlling said valve, a float cooperating with said lever, a safety-catch to hold the valve open while the float is descending and means for tripping it, and a catch-lever to hold the weighted lever up until tripped by the float. i

4. The combination of a collecting-chamber having a water-dischargevalve and a piston controlling said valve, with a valve controlling the supply of steam to the said piston, a spring and a weighted lever controlling said steam-valve, a float cooperating with the weighted lever, a safety-catch to hold the steam-valve open while the float is falling and means to trip the safety-catch when the float has descended.

5. A steam-eliminator having a bafllechamber containing baffle-plates and below that a collecting-chamber with a valve between the two having a vertically-operating stem passing u between the baffle-plates and through a stu ng-boX in the top of the casing.

In testimony whereof we have signed our names to this specification in the presenceof two subscribing witnesses.

WILLIAM LLOYD. JOHN LLOYD. SAMUEL T. NICHOLSON. IVitnesses:

A. L. TURNER, HARRY NICHOLSON.

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