US1046131A - Steam-trap. - Google Patents

Description

H. J. WIEDEREGHT.

STEAM TRAP.

APPLICATION FILED MAY 27, 1911.

Patented Dec. 3, 1912.

2 SHEETS-SHEET 1'.

INVENTEIR TTDRNEYT H. J. WIED EREGHT.

' STEAM TRAP.

APPLICATION FILED MAY 27, 1911.

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' NI ED STATES PATENT HARRY J. WIEDERECHT, NEW PHILADELPHIA, Ql'lIO.

a STEAM-TRAP.

' Specification of Letters Patent.

Patented Dec. 3, 19 12.

A lication filed May 27, 1911., Serial No. 629,915.

To all who-m, it ntay concern Be it known that I, HARRY J. WIEDERECHT,

.a citizen of the United States of America,

and resident of New Philadelphia, county of Tuscarawas, and State of Ohio, have invented. certain new and useful Improves ments in Steam-Traps, of which the following is a specification.

This invention relates broadly to steam traps, and specifically to a trap having novel and improved means whereby the outlet tothe waste-pipe or atmosphere is automatically controlled. I The primary object of the invention is to provide a steam trap which is simple in its construction, which is positive and reliable in its operation, and which has but few parts likely to become out of order through wear and corrosion.

A. further object withinthecontemplation of this invention is to provide a device of the character mentioned wherein the water assa es are of such size as not unnecessarily to restrict or retard the flow of water therethrough. i

Further objects will be in part obvious and in part pointed out hereinafter. The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in t-he construction hereinafter set forth, reference being had to the accompanying drawings, forming a part of this specification, in which 1- Figure 1 's a central vertical sectional I view, showing-the piston elevated to admit of the discharge of water through the outlet; Fig. 4 is a horizontal sectionon the line 4-4, Fig. 1; and Fig. 5 is a partial vertical transverse section on the line 5--5, Fig. 3.

Referring to said drawings, in which like i designating characters distinguish like parts throughout the several views-1 indicates a 5 body or casing which constitutes a water receptacle, 2 a-oover removably mountedon said body,. and 3 the. inlet port through which steam'and the water ofcondensation are forced into the receptacle underipressure. In entering throughsaid port 3 the water strikes against a baffie 4, preferably.

, formed integral with the casing, and is by it elevation of the invention, showing -the parts deflected or directed downward toward the bottom of .thereceptacle. Depending within said receptacle from the under side of said cover 2 is a hanger-likesupport 5 to which is pivotally connected lugs Gearried by the rear end of a float or buoyant'bucket 7 which normally floats in a substantially horizontal position upon a body of water retained within the trap body or receptacle 1.

The cover has formed thereon, or, preferably, integraltherewith, a vertical cylinder 8, closed at its upper end by a bolted-on head 9, and communicating at its lower end'with a vertically disposed tube 10 which depends within the bucket, having its upper end threaded into the cover 2 behind the lower annular flange of a cylindrical member 11 whose upper edge is shaped to form a valvelike seat 11 at .the lower end of said cylinder 8. Mounted within saidcylinder is a piston 12 having a reduced lower end 12* which is beveled annularly to correspond with seat 11 and constitutes a valve normally resting upon said seat for closing the outlet 13 to the atmosphere, it being of course understood that a waste-pipe (not shown) connects with said outlet.

For guiding the piston 12 in its movements, a sleeve or stem ll is fixed thereto and is slidable through the hub 15 of a spider-like guide whose arms 16 are preferably integral with the member 11.

The piston 12 has a central bore 17 extending vertically therethrough in reg ter with the bore of said sleeve'or stem 14, and slidabletherein is the stem 18 of a valve 19. The lower end of said stem: 18 is pivotally eonnected or linked to a suitable bolt 20 fixed to the bottom of the bucket. A guide member 21 of spider form is pireferably pro vided for said valve stem 18.near the lower end'of tube 10. Said valve 19 normally occupies a position closing the lower end of a bore or cored-out opening 22 provided in a plug 23 which is seated centrally in the top of the head 9 and which has radially disposed ports Ql leading through the walls thereof into'con nnunication with a chamber 25 formed-in said head. Said chamber conimunicates at one side of said head, through a passage 26, with a passage 27 formed in.

the cylinder wall and leading to'the outlet 13, a ground joint being formed between said head and said cylinder wall for preventing leakage. When the valve 19 is off its seat, communication is bad between a pressure chamber 28, above the piston, and the bore 22 in the plug 23 through ports 29 provided in the under side of the head 9.

The lower portion of the piston is reduced in diameter, an annular shoulder thus being formed-which is adapted to seat upon an integral internal annular shoulder 30 carried rings.

formed at intervals upon 1ts upper face a bythe cylinder above the outlet' 13.. Packing rings 31 are carried by the larger upper portion of the piston, as shown, and followers 32 and 33 are screwed up against said The uppermost follower, 33, has

' passage, constituted .by the bores in the sleeve or stem 14 and in the piston, in which the valve stem 18 operates, exerts a pressure which holds the piston depressed with its reduced lower end upon valve seat 11 maintaining the outlet 13 closed. It will of course'be understood that the purpose had in view in forming. the piston with two different diameters is to provide a greater area exposed to the pressure at the upper end of the piston than"the area which is exposed to pressure in the receptacle 1. When the incoming water rises to a point in the receptacle where the bucket is filled to a sulficient depth that the weight thereof overcomes the pressure holding it in normal position, said bucket is tipped by force of gravity, withdrawing said valve 19 from its seat, as is shown in Fig. 2. The pressure in the chamber 28 is thus relieved, being permitted to escape, as is indicated by arrows in Fig. 2, whereupon the pressure within the body of the casing or receptacle, acting upon the lower end of the piston, elevates the latter, opening the outlet 13, as shown in Fig. 3, admitting of the discharge of the water through said outlet.

I When suflicient water has been exhausted, the bucket regains its buoyancy and resumes its normal horizontal .position, seating valve 19. Pressure immediately accumulates in the pressure chamber 28 to a point where it equalizes with that which, acting, upon the reduced end of the piston, holds the piston elevated, and the latter drops upon the seat 11, closing the outlet. 'The downward The foregoing operations wherein the piston is reciprocated, opening and closing the -weightmay be conveniently applied to the free end of the bucket for lowering the buoyancy of the latter to a requisite point, a tubular bore 34 is provided in the front wall of the bucket, said bore being adapt-ed to be filled, or partially filled, with Babbitt metal.

For the purpose of allowing the bucket to be further tipped than would otherwisebe possible, the rear wall thereof is upwardly and rearwardly flared, as shown at 35 in Figs. 1 and 4, the curvature of the flare corresponding substantially with that of the tube 10, so that when the bucket is tipped, as

shown in Figs. 2 and 3, said tube will be partially embraced therebv.

The lugs 6 of the bucket are mounted upon threaded pivot-pins 36 having conical points seated in sockets provided therefor in the lower end of the hanger-like support 5. Lock-nuts 37 are jammed against the lugs 6, as shown in Fig. 5, for maintaining said lugs and said pins in adjusted relation. As is obvious, wear on the pins or their seats may be readily compensated for by slight adjustment of said pins.

The bottom of the casing is concavely curved, as shown in Fig. 5, and is inclined downward in a forward direction, as shown in Figs. 1, 2 and 3, so that sedimentary deposits may be readily drained from the receptacle through. a blow-off 38 located at a suitable point in the front end of the casing. It will be apparent that'various changes or alterations, within the scope of the appended claims, in the construction and arrangeme'nt of some of the parts may be resorted to without departing from the general spirit or scope of the invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a steam trap, a water receptacle having a removable cover, a float member in said receptacle, a cylinder located above said cover, a water discharge outlet from said cylinder, a piston in said cylinder, a pressure chamber above said piston, means 6onst-antly admitting steam,'pressure to said chamber, a plug having a passage therethrough, reliefpassagesleading from said chamber to the passage in the plug, and a relief valve located within said chamber, said valve having operative connections with said float member whereby it normally seats in the passage in the plug and holds said relief passa es closed to maintain pressure'in 2. In a steam trap,"a Water receptacle having a removable cover, a float member in said receptacle, a cylinder located above said cover, a Water discharge outlet leading from said cylinder, a piston in said cylinder, the opposite ends of said piston havin different pressure areas, a pressure chain er above said piston, a removable plug having a bore and side-openingports therein, relief passages leadlng from said chamber and communicating with said bore, a. relief valve in said chamber and having its stem operatingthrough said piston, sald valve being normally seated closing said passages and the bore in said plug, said stem having pivotal connection with said float member, a constantly open passage for pressure from the receptacle to the pressure chamber, said chamber containing pressure, when the relief valve is closed, tor maintaining the pis ton depressed into outlet-closing, position, and said piston being adapted, ,upon the pressure in said chamber being relieved, to be elevated by the pressure in the receptacle to outlet-opening position.

In testimony whereof I afiix my signature in presence of two subscribing Witnesses.

HARRY J. WIED RECHT. Witnesses.

J. DUNCAN HARDESTY, GEO. W. BETSCHER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.?

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