US911268A - Steam-trap. - Google Patents

Description

J. E: PURSER.

STEAM TRAP.

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STEAM TRAP. APPLIOATION FILED APB. 6, 190 8.

Patented Feb. 2, 1909.

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JAMES EDWARD PURSER, OF WINDSOR, ONTARIO, GANADA',:ASSIGNOR, BY MESNE ASSIGN- MENTS, TO H. I. MOREHEAD, OF DETROIT, MICHIGAN.

STEAM-TRAP.

' Specification of Letters Patent. "lb' ".Lf Patented Feb. 2, 199.

Applieationledprilh, 1908. Serial No. 425,546.

My invention has reference to certain` new and useful improvements'in a steam trap,

the same being 'designed as a `gravity sepa-` rator to separate` water of condensation from steam. l

My invention consistsin the construction, combination, and Aarrangements, vof devices and appliances claimed, `and illustrated in the accompanying drawings, in which, Y j f y f Figure 1 is a viewinside elevation. Fig. 2 isa view in horizontal section on the line 2-2 Fig. 1 Fig. 3 is a detail view showing` the valve mechanism in the discharge pipe, parts being in vertical section and parts in side elevation, the parts being in normal or closed position. Fig. 4 is a view similar to Fig. 3 but showing the valve in open position. Fig. 5 shows in detail a suitable plate and yoke upon which the weighted lever is fulcrumed. Fig. 6. is a view in vertical longitudinal section showing parts in side elevation. Fig. 7 is a vertical -transverse section on the line 7-7 Fig. 1.

The purpose of my mvention'is to pro-l Vpermit the contents'of the tank to discharge.

My invention also includes certain otherfeatures hereinafter setV forth. I carryout my invention as follows: In the drawings the numeral 1 denotes` any suitable base provided upon opposite sides thereof with inlet and discharge chambers indicated at 2 and 3. An inlet pipe a communicates with` the chamber 2, and a discharge pipe b communicates withv the chamber 3. The chambers 2 and 3,*as shown, are

provided with communicating `pipes or f4 and 5, glands 6 and 7 being charge pipes a hereinafter described andl r10 within the casting.

Y end thereof having a channels, respectively,`indicated at Grandv d, the upper ends of which are provided with chambered elbows f and g preferablymade integral therewith. Upon the said elbows or sleeves aresupported hollow trunnion Varms employed, en-

gaged with the inner ends of the respective elbows in any suitable manner, as by bolts e to hold a suitable packing h in place.

It will be evident that the trunnion arms communicate through their respective elbows and corresponding channels c, d, with the chambers ofthe base with which are connected the corresponding inlet and disand b. The trunnion arms 4 and 5 are connected with a channeled casting Z formed with an inlet `channel 8 and a discharge channel 9, said channels being on opposite sides of aseparating diaphragm Said casting is further formed with a laterally extended channeled arm 45 and with an upright channeled arm46, supporting an upright pipe 11,'the pipe ll'supporting a tilting receiving tank or separator 12. The trunnion arms have a rocking movement in the corresponding elbows permittingthe tank to tilt. It lwill be understood that the'tank is supported vupon'the pipe 11 at one side of its center gravity. The supporting pipe 11 communicates with the channel 8. A-discharge pipe 13)` communicates with one end of the tiltino' tank as through'a vertical pipe 14, the pipes 13 and 14 being connected by an elbow 15. The pipes 13 and-14, and elbow 15, practically' form a single discharge pipe.

'The discharge pipe communicates with the channel 9 and trunnion arm 5. Controlling the discharge channel is a valve mechanism 16 of any suitable construction, that shown herewith, comprising a valve case 47 threaded into the channeled arm 45 at one end thereof, and yconnected at its opposite end with the discharge pipe 13 as by a suitable pipe coupling 48. A valve 17 seats upon the valve seat 18 within the case. le of'said valve is shownfjointedly connected at its upper end with a normally horizontally extended lever 19, said lever at lone link connection with a yoke 2O provided with a guide arm y' to guide the movement of the valve lever. The opposite endof the valve lever is shown providedr with a vertically depending stop 21to contact with the base when the tank The stem ioo llO

tilts tliei eby holding the valve 17, and permitting the valve seat to drop away therefronrupon the farther tilting of the tank whereby the valve mechanism is opened. l would have it understood that this valve mechanism, however, may be located in -the discharge pipe anywhere between the casting' Z and the entrance of the discharge pipe into the tank. rlhe valve while seated, or closed, will hold the content-s of the tank in check from passing through the discharge pipe while the tank is filling, until the weightof water in the tank causes the tank to tilt.

To hold the tank in normal position while filling, l provide a weighted llever 22 preferably bifureated, as shown in Figs. 2 and 7, said lever being provided with a weight 9.3 which may be adjusted thereupon. The end of the weighted lever opposite the weight, is arranged to support the corresponding end of the tank andhold the tank in normal position until the weight of water therein overbalances the weight upon said lever. To

this end the weighted lever is Vshown engaged with a pipe yfitting l5 in the pipe 13. The weighted lever is fulcrumed upon a yoke 25 vcarried upon a plate 26, said plate being made longitudinally adjustable upon the base in any Vsuitable manner. As shown the base is constructed with a longitudinally elongated slot 27, through which the plate may bebolted uponthe base. The plate may also be laterally adjusted upon the base b v providing the plate with a laterally elongated slot 28 through which the bolt 29 is passed. Said plate is shown provided with recesses 30 upon the upper side thereof in which the corresponding lower extremities of the yoke 25 rest. The upper ends of said yokes are shown .engaged in corresponding recesses 3l .in the bifurcated arms of the weighted lever.

he rear end of the tank is preferably provided with a shoulder 28 through which is passed a rocking bar 39 having a jointed engagement at its lower end upon the base asshown at 40. Above and below said shoulder, said bar vis provided with buffer springs 4l and 4t2 to take the shock in the movement.

of the tank.

The operation of the device will readily be understood. When .the tank is in a horizontal position the valve is closed, holding the steam and water on .the upper side of the valve in check, until the tank fills sufiiciently to overbalance the weight. The tank then tilts and opens the valve, the tank lying in tilted position until the weight restores the tank to normal position.

ln order to secure the ready adjustment or engagement of the trunnion arms in posi` tion, I prefer to provide the elbow f with a'plugV 43 having a threaded engagement therein, the plug being chambered at its inner end to afford communication between the corresponding trunnion and the corresponding upright pipe o. By removing the plug it will r .adily be seen that the corre sponding trunnion arm may be inserted in place and moved outward in the corresponding elbow suliciently to enable the outer end of the other trunnion arm to be inserted in place, after which the trunnion arm may be shifted laterally so that the plug may be rengaged in place to hold the trunnion arm in proper position. The bolts whereby the stuffing boxes are held in place are preferably arranged in the corresponding casting, as indicated in section, for example, in the casting g, in Fig. 2. rlhe stufling boxes may thus be simply slipped over the ends of the bolts, nuts m being provided to hold the stufling boxes in place.

To make sure that the plug 43 when in place has its inner chamber in communication with the pipe o, l prefer to provide the upper surface of the plug with a line as in dicated, for example, at del, Fig. 2, to indicate when the plug is properly entered.

iV hat l claim as my invention is:

l. A. steam trap comprising a tilting tank, hollow trunnions communicating with the tank upon wiiich said tank tilts, chan'lbered fittings to receive the outer extremities of said trunnions, a removable plug in one of said fittings to bear against the adjacent end of the corresponding trunnion through which. the trunnion communicates with the corresponding fitting, a weighted lever to hold the tank in normal position, a discharge pipe communicating with the tank and with one of said trunnions, and a valve located in the discharge pipe.

2. A steam tap comprising a base chambered on opposite sides thereof, upright channeled arms communicating with the chambers of the base, hollow trunnions rocking in said channeled arms, a tilting tank supported upon said trunnions and communicating with one of said trunnions, a discharge pipe communicating with the other of said trunnions and with said tank, valve mechanism in the discharge pipe to hold the tank in normal position until the weight of water in the tank causes the tank to tilt, and a weight to hold the tank in normal position, said valve mechanism provided with a vertically seating valve, a normally horizontally extended lever connected with the stem of the valve, and a vertically depending stop jointedly connected with the rear end of the lever to hold the lever and the valve when the tank tilts, permitting the valve seat to drop away from the valve upon the tilting of the tank.

3. A steam trap comprising a base chambered on opposite sides thereof, upright channels communicating with the chambers of the base, ohambered fittings upon the upthe tank to tilt, and a weight to hold the 10 per ends of said channels, hollow trunnions tank in normal position.

engaged in said ittings, stuHing boxes about In testimony whereof I have signed this said trunnions engaged with the Correspondspecification in presence of two witnesses.

f ing ittings, a discharge pipe communicating 'l p JAMES EDWARD PURSER with the tank and with the other of said Y trunnions, a valve seated in the discharge Witnesses: p pipe to hold the tank in normal position N. S. `TRIGHT,

until the weight of water n the tank causes Gr.Y E. MCGRANN.

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