US724318A - Controlling-valve for traps. - Google Patents

Description

No. 724,318. PATENTED MAR. 3l, 1903.

' R. G. MGAULEY.

CONTROLLING VALVE FOR 4TRAPS.

APPLIUATION FILED 0013.13, 1902.

No MODEL. 2 SHEETS-SHEET. 1.

llli'hlllll mw .fa/5f' PATENTED MAR. 3l, 1903.

R. G. MGAULE. CONTROLLING VALVE FOR TRAPS.

APPLICATION FILED `00T.13| 1902.

UNITED STATES PATENT OFFICE.

ROBERT G. MCAULEY, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE MCAULEY AUTOMATIC TRAP COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

CONTRO'LLlNG-VALVE FOR TRAPS.

`SZPECIilGATION forming part of Letters Patent N o. 724,318, dated March 31, 1903.

Application led October 13, 1902. Serial No. 127,152. (No model.)

To all 1071/071?, it may concern:

Be it known that I, ROBERT G. MCAULEY, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Controlling- Valves for Traps, of vwhich the following is a specification, reference being had therein to the accompanying drawings, forming part of xo this specification, in which- Figure 1 is a vertical sectional view of a gravity trap provided with my improved valve. Fig. 2 is a similar view showing the inner receptacle tilted, establishing commu- :5 nication with the piston of the outlet-valve. Figs. 3 and 4 are vertical sectional views of the valve on an enlarged scale, showing it in closed and open positions,respectively. Figs. and 6 are horizontal sectional views indizo cated by the lines V V and VI VI of Fig. 4.

My invention refers to the class of traps for collecting and disposing of water of condensation or other liquid accumulation consisting of a vesseladapted to receive the liquid and z 5 to be automatically emptied by the operation of a gravity-actuated interior bucket adapted to open the valve mechanism, whereby the exhaust-port is opened and closed, so as to permit a constant fluid-pressure to discharge 3o the contents of the trap;

The presentinvention relates more particularly to the valve controlling the flow of water from the vessel, the other portions of the construction conforming to the subject-matter of a similar invention for which Letters Patent were granted to me on January 7, 1902, No. 690,658.

Referring now to the drawings, 2 represents the main shell of the trap, to the top 3 of 4o which or at any suitable location above the water-line is connected a pipe 4, communieating with any source of fluid-pressure, as a steam or gas conductor. Connected with the shell 2 also at any convenient location above the water-line is a water-supply or drain pipe leading from any point in the line of pipe or vessel, by which pipe water of condensation is carried to the interior of the trap, and for the purpose of deflecting such water down- 5o wardly, so that it will not iow directly into the bucket, I employ an arresting or deflecting shield 7, which shrouds the inner end of the opening, as shown.

Pivotally mounted, as by a hinge-joint S, upon the inner side of the case is a bucket 9, located about centrally of the interior, the opening at the top of which is preferably slanted downwardly toward one side, so that the water as it rises Within the case around the exterior of the bucket will ow over such 6o lower side, and so ill it. The bucket by reason of its buoyancy will iioat upon the water and be maintained in an erected position until so filled, when it will tip downwardly away from the hinge 8, as shown in Fig. 2, permitting the water to flow into it and to be eX- hausted from the case down to the level of such lower edge of the bucket. For the purpose of facilitating the tilting action a Weight 10 of suitable size may be attached to the in- 7o ner upper edge of the bucket in any convenient manner. K

11 is au outlet-pipe extended down within the interior of the case and of the bucket to within a short distance of its bottom when raised, as in Fig. 1, and said outlet-pipe eX- tends through the side of thecase and communicates with the upper portion of a valvechamber 12 above a vertically-moving valve located within the case and adapted when 8o raised, as shown in Fig. 2, to establish communication from the interior of the bucket through pipe 11 and valve-case 12 and its outlet-opening 13, which may lead to any suitable point of discharge.

The shell 12 of the valve is preferably formed in one piece and is provided at its upper portion, somewhat below the level of the side connection for pipe 11, with a valve-seat 14, there being an annular space around said 9o valve-seat for the purpose of receiving the upper supplemental pressure portion of the valve hereinafter described.

15 is a valve mounted on or formed integral with a stem 16, adapted to rest upon seat 14 95 and also close communication therethrough, and the valve is provided with an upper eX- tended head 16 of considerable area, so that in the passage of the water through the pipe 11 it will be rst delivered downwardly against roo the top of said head 16 and will always exert a pressure thereon, tending to seat the valve. The ,annular space 17 around the valve enlargement is somewhat restricted, so that its cross-area is less than the cross-area of the -valve-opening leading to outlet 13, 'whereby the excess pressure from above will always act to seat the valve.

In the upper portion of the valve-case is a cap18, provided with a central cylindrical chamber 19, into which projects a plunger.v

In the lower portion of the case below the' outlet-opening 13 is provided a pistou-chainber 22, the lower portion of which is closed by a plug 23, having a central opening 24, with which connects a pipe 25, communicating, preferably, through an angle-valve with port 26, leading to the interior of the case. The middle portion of plug 23 with opening A24 is extended upwardly within the interior of the piston-chamber, practically illing the space in the interior of the piston, and is provided with lateral ports 27, below which water of condensation will collect and provide a water seal extending above the lower portion of the piston at all times, so as to act as a cushion through which the steam-pressure is exerted against its submerged periphery.

28 is the piston, provided with a series of annular recesses 29, adapted to be filled with water, so as to provide Apacking for the piston, preferably having an upwardly-extending sleeve 30 and being connected to the pis-` ton-stem 16 in any suitable manner, as by screw-threads and. nut 31.

A port 32 communicates with the interior of the pistou-chamber and with the outletopening, by which any accumulation of water or other counteracting pressure may be freely discharged.

33 is a drain-cock tapped into the side of the valve-case immediately above the valveseat for the purpose of drawing 0E water of condensation and preventing freezing.

The inner end of the port 26 terminates in a valve-seat 34, adapted to be closed by valve 35, which valve is formed or made on the iuner end of a reciprocating stem 36, mounted in suitable bearings in the interior of the case. The valve-stem 36 is provided with adjustable abutments 87, between which a bifurcated arm 38 is adapted to play and to move the valve-rod in or out by action against the abutments. This bifurcated arm is attached to and extends from the edge of the bucket 9, as shown, and in operation when the bucket is buoyantly held up the valve will be maintained closed, relieving pressure from piston 28 by cutting olf the upper supply-pressure from above, keeping the outlet -valve 15 seated and allowing water of condensation to ll the interior of the valve-case up to the level of port 27, thus submerging the lower endof the piston 28. When, however, water in the interior of the case has risen sufficiently high to overflow into the bucket and tip it by reason of the specific gravity of the bucket itself and its counterweight,the tipping action of the bucket and the corresponding movement of the vbifurcated arm 38 upon the valve 35 will open it and establish pressure to piston 28, raising valve 15,whereupon thepressure within the case through pipe 4 will force the fluid contents of the bucket outwardly through pipe 11 until the water-level in the bucket is lowered down to the lower end of pipe 11,when the bucket will rise upwardly, closing the valve and maintaining it so closed until the operation is again repeated.

The case 2 is provided at its lower point with a drain-cock 39, by which the case may be emptied and accumulation ot dust or other foreign material drained oif. A feature of advantage in the construction is that all such accumulation of foreign material will settle to the bottom of the case, the clear water only rising and flowing into the bucket, so that no foreign material will pass through the pipe 1l to the outlet-valve, whereby it is constantly maintained in a clear and operative condition. I also prefer to connect pipe 25 with plug 2 3 by a coupling 40, having a reduced drainingport 41 by which water of condensation may escape.

The device may be used to drain any pipe or vessel where a pressure may oe had, and in its operation it is very eflicient and reliable, obviating the objections of other kinds of traps for this purpose, and it will be found by those accustomed to this class of mechanism to 'give continued and satisfactory results.

The construction of the valve for controlling the escape of water from the interior is very simple, compact, and effective in operation, while the advantages of the extended area of the valve insuring seating, the watercushion in the upper end of the stem, the means for covering the lower end of the piston, together with the other features of the construction, contribute to the general eiiciency and advantage of the invention.

rlhe apparatus as a whole is very simple in construction, compact in size, symmetrical in form, and easy to build, while being reliable and efficient in continued operation and not liable to get out of order.

While the construction of the valve, as well as the other portions of the invention, is well adapted to the objects in view, it will be readily understood that various -changes and modifications may be made in its construction or design by the skilled mechanic without departing from the invention as embodied in the following claims.

lOf L IOS IIO

What I claim is- Y 1. A controllin g device for traps consisting of a shell pro-vided with a valve-seat, an inletopening above said seat, an outlet-openingA below the same, a valve adapted to fit upon the seat provided with a supplemental peripheral pressure-surface, and a piston connected with the Valve, with means for applying fluid-pressure thereto, substantially as set forth.

2. A controlling-valve provided with a hollow piston, a piston-chamber therefor, and a pressure-inlet conduit extendingabove the bottom of the chamber, substantially as set forth.

3. A controlling-valve provided with a piston, a chamber therefor, and a pressure-inlet conduit extending above the bottom of the chamber and provided with lateral ports, substantially as set forth.

4. A controlling-valve provided with a piston, a chamber therefor having a water-seal basin, and a pressure-inlet conduit terminating above the water-level thereof, substantially as set forth. A

5. A controlling device comprising a case provided with a seat, an inlet-opening on one side of the seat, an outlet-opening on the other side thereof, a valve provided with a supplemental peripheral pressure-surface on the 'inlet side, and means for actuating the valve, substantially as set forth.

6. A controlling device comprising a case provided with a seat, an inlet-opening on one side of the seat, an outlet-opening on the other side thereof, a valve provided with asupplemental peripheral pressure surface on the inlet side, and a piston secured to the stem of the valve, with means for applying pressure to the piston, substantially as set forth.

7. A-controlling device comprising a case provided with a seat, an inlet-opening on one side of the seat, an outlet-openin g on the other side thereof, a valve provided with a supplemental peripheral pressure-surface on the inlet side, and a hollow piston secured to the stem of the valve, with means for applying pressure to the interior of the piston, substantially as set forth.

8. A controlling device comprising acase provided with a seat, an inlet-opening on one' side of the seat, an outlet-opening on theother side thereof, a valve provided with a supplemental pressure-surface on the inlet side, and an extended perforated plunger adapted to enter a corresponding recess in the case, with means for moving the valve, substantially as set forth.

9. A controlling device comprising a case provided with a seat, an inlet-opening on one side of the seat, an outlet-opening and an eX- haust-passage on the other side thereof, a Valve provided with a supplemental peripheral pressure-surface on the inlet side, an eX- tended cushioning-plunger, a recess therefor, a piston-chamber, a communicating port between the piston-chamber and the exhaustpassage, a piston connected with the valve, and means for supplying pressure to the piston-chamber, substantially as set forth.

10. In combination with a trap provided with a pivotallymounted vessel, an exhaustpipe, and a pressure-valve actuated by movement of the vessel: a controlling-valve case communicating with the exhaustpipe, a valve therein provided with a supplemental peripheral pressure-surface and a piston, a piston-chamber, and a connection between the piston-chamber and th`e pressure-valve, substantially as set forth.

l1. In combination with a trap provided with a pivotally-mounted vessel, an exhaustpi pe, and apressure-valve actuated by movement of the vessel: a controlling-valve case communicating with the eXhaust-pipe,a valve therein provided with a supplemental peripheral pressure-surface and a piston, a piston chamber, a water seal cavity therein, and a connection between the piston-chamber and the pressure-valve, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

ROBERT G. MCAULEY.

Witnesses:

JAS. J. MCAFEE, C. M. CLARKE.

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