US358964A - creamer - Google Patents

Description

(N'o Model.)

A f 2 sheets-sheet 1.

H. GREAT/IER. STEAM FEED WATER TRAP.

No. 358,964.. Patented Mar. 8, 1887.

(No Model.) 2 Vsheets*sheet 2.,

[HUREAMER l STEAM FEED WATER TRAP. No. 4358,961'4." Pagented Mar. 8, 1887.

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'Nimah Srnins HENRY CREAMER, OF NEW'YORK, N. Y.

STEAM FEED-WATERTRAP.

SPECIFICATION forming part of Letters Patent No. 358,964. dated March 8, 1887.

Application filed July 9, i886. Serial No. 207,542. (No model.)

To all whom it may concern:

Be it known that I, HENRY CREAMER, of the city, county, and State of New York, have invented certain new and useful Improvements. in Steam Feed-Vater Traps, of which the folwater into the boiler when a certain quantity of such feed-water has collected.

The object of my invention is to provide an automatic feedwater trap in which the eX- haust-steam of the trapis carried from above the upper piston to a point below the same, and is then forced into t-he pipe throughwhich the water of condensation is conducted to the trap.

The invention consists in the' construction and combinations of partsand details, as will be fully described and` set forth hereinafter, and finally pointed out in the claims.

In the accompanying drawings, Figure l is a longitudinal sectional elevation of my improved feed-trap. Fig. 2 is an enlarged'detail view of the valve movement. Fig. Sis a plan View of the same, parts being omitted. Fig. 4. is a longitudinal sectional elevation of the slide-valve, and Fig. 5 is a diagram view showing the general arrangement of the trap.

Similar letters of reference indicate corresponding parts.

' The steam-cylinder A and the smaller water- `cylinder B are cast in one piece, the latter cylinder being provided a short distance bel'oW its upper end with an internal annular shoulder, B', on which a packing-ring, C, is placed and held in place by an angle-iron ring, C', through which bolts C2 are passed into the annular offset or shoulder D, forming the bottom of the steam-cylinder A. The said cylinder A is provided with suitablehand-holes, a, which can be closed by suitable covers held in place by suitable means.

The piston E in the water-cylinder B and the piston G in the steanrcylinder A are connected by the rod F. i

The water-cylinder is provided in its bottom With the opening I, which is in communication with the pipe J, having the checkvalves J and J2 at opposite sides of the aperture I, the said check-valves both opening in the same direction,the water passing through the pipe J in the direction of the arrow d. A pistonrod,H,passes to the stuffingbox H on the top of the steam-cylinder A, and is provided at its upper end with ahead, H2, through which head is fastened one end of a chain or metal strap, K, passed over the roller L,piv

oted on one end of the lever L, pivoted on a standard,L`l,on the top of the cylinder A, the other end of the metal strap or chain K being fastened to said standard. A weight,L3,isfast ened or held on the other end of the lever L to counterbalance the two pistons.

A headed pin, M, projects from the head H2 on the top of the piston-rod H, and passes through a longitudinal slot, M', of a vertical rod or bar, M2, the lower end of which is pivoted to the arm O of a sleeve, O,'nnounted loosely on the pivot O2, projecting from the side of a horizontal cylindrical valve-casing, P, on the head of the cylinder A. Said sleeve O is provided with a collar, O3, havinga recess, Ot, the length of which is about equal to one-third of a circle. Into the said notch or recess O4 a pin, Q, passesfrom a lever, Q,

stem R2 ofthe sliding valve P in the casing P. `The neck P2 of the casing P is connected with the cylinder A. vThe neck P3 of the casing P is connected with the boiler m by the pipe o, and the casing P is connected by apipe, S, with the bottom part of the cylinder A. The pipe J is connected by a pipe, n, with the boiler m. The lower part of the pipe J is connected by the pipe 1', having the check-valve s, with the pipe p.

A pipe, V, forms connection between the pipe p and the pipe J, and within a frame,- t, fastened on the side of the cylinder A, an enlargement, t', is formed in the pipe V, on the side of which enlargement the boX t2 is formed.

IOO

A rock-shaft, t3, is mounted in the box t2, and is provided with an arm, projecting into the enlargement t', from which arm i* a float, t5, is suspended or supported in any suitable manner. The shaft t3 is provided at one end with an arm, s', carrying a ball, s2. The arm s is connected by a rod, Il, with an angle-lever, t', pivoted on top of the frame t, the other end of said angle-lever being connected with the sliding bolt j, the end of which can pass 4into the notch 7c in the collar o", mounted on the pivot O2.

The operation is as follows: The water of condensation passes through the pipe J in the direction ot' the arrow d, Fig. l, opens the left-hand check-valve J passes into the watercylinder B, and exerts an upward pressure on the bottom piston, C, which, with the upper piston, E, rises. The lever L swings down and the metal strap or chain K draws the pistonrod and valve upward. As the upper piston, E, ascends the exhaust-steam above the same passes into the valve-casing P, the valve being'in proper position, and then down through the pipe S into the bottom part of the steamcylinder below the steam-piston. The valve is then reversed, so as to admit live steam into the upper part of the cylinder A, which steam, acting on the large upper piston, forces the same downward, whereby the lower piston, C, of the water-cylinder forces the water out through the aperture I into the pipe J and check-valve J into, the boiler. At the same time the piston E forces the exhaust-steam, which was conducted from above the upper piston to below the same, through the pipe fr into the pipe p, through which the return or condensed water of condensation passes from the engine-register, Src. The exhaust-steam of the steam-trap is thus mixed with the return or water of condensation coming from the register or engine. Vhen -the pistons E and G are forced downward, the piston-rod II is also moved down, and the metal strap or chain acting on the lever L swings the weighted end of said lever upward, and so on. When the pistons have completed their upward stroke, the headed pin M on the upper end of the piston-rod H strikes against the upper end of the slot in they vertical rod or bar M2, and swings the same upward, thereby swinging the arm O in the direction of the arrow a', Fig. l. Then one end of the recess or notch O4 strikes the pin Q, thereby throwing the arm Q out of a position of rest in the direction of the arrow a2. Under the action of the weight Q the rocking arm continues the stroke in the direction of the arrow c2, and the left-hand shank, Q*,striking the lug R of the U-shaped rod R, moves said rod, and the piston valve j in connection with the same, in the inverse direction of the arrow a2, whereby the valve is shifted in such a manner as to admit live steam into the upper end of the cylinder A, under the action of which live steam the pistons are moved downward. Vhen the pistons have completed their downward stroke,

the headed pin M strikes the arm O and presses the same in the inverse direction of the arrow c',- whereby the other end of the recess O4 in the collar O3 strikes the pin Q and swings the lever Q in the inverse direction of the arrow a2 until said lever has passed its center, when it continues to swing in the inverse direction of the arrow a2 under the action of the weight Q. Thereby the valve is shifted in the direction of the arrow c?, the live steam cutoff, and the communication established between the cylinder A and pipe S.

It is not desirablethat the apparatus should operate when there is not sufficient water in the pipes, and for this reason I have provided the enlargement t andk the iioat in the same. The level of the water in the pipe Vis always equal to the level of thewater in the cylinders. Vhen the level of the water in the cylinders and in the pipe p is high, the iioat t5 is raised and the weight sl lowered, and the bolt j is withdrawn from the notch 7c in the collar 0, and thus does not interfere with the operation of the valve mechanism. Vhen the level of the water sinks, the iioat i5 descends, the rod h is moved upward, and the end of the bolt or latch j is pushed into the notch 7c, whereby the valve mechanism is locked. rlhe valve mechanism is thus always locked when the level of the water in the apparatus is too low, and is released when. the level of the water rises to the proper height.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. In a steam feed-water trap, the combination, with united steam and water cylinders, of a piston in each cylinder, which pistons are connected, a piston-rod projecting from the upper piston through a stuiiing-box in the head of the upper cylinder, a chain or strap secured to the said piston-rod and passed over a pulley on a pivoted lever, and a weight on said lever, substantially as shown and described.

2. The combination, with a stearn-trap,of la pipe for conducting the water of condensation from the engine or registers, and a pipe connecting the steam-cylinder of the trap with the pipe for conducting the water of condensa- IOO tion to the steam-trap, substantially as shown and described.

8. rlhe combination, withasteam-trap having a steam and water cylinder, a piston in each cylinder, and a rod connecting the pistons, of a rod projecting from the steam-piston and through the top of the steam-cylinder, a metal strap or chain secured to the upper end of said rod at one end and having the other end fastened, and a weighted pivoted lever provided on one end with a pulley or roller, over which the above-mentioned strap or chain is passed, substantially as shown and described.

4. In a steam-trap, the combination, with a united steam and water cylinder,each containing a piston, which are united by a rod to a piston-rod projecting upward from the upper pis'-A ton, a valve on the steam-cylindeI-,Which valve governs the admission and exit of steam, and a rod connected with the valve and operated from the abovementioned piston -frod projecting from the top of the steam-cylinder, substantially as shown and described.

5. In asteam-trap, the combination, with the cylinders and pistons,ofthe valve-casing on top of the steam-cylinder, a pivot projecting from the side of the' valve-casing, a notched sleeve mounted on the said casing and provided with an arn1,a rod connecting said arm with the piston-rod, a rocking lever mounted on the pivot of the valve-casing, which lever has one end forked and one end Weighted, a pin on said rocking lever,a slide-val ve in the valve-casing. and a rod connecting the slidevalveWit-h a rod projecting from the valve between the forked ends of the rocking lever, substantially as set forth.

6. In a steam trap, the combination, With the cylinders and pistons in the same,of the valvecasing on the steam-cylinde1,apivot projecting from the side of the valve casing, a sleeve mounted on said pivot and provided with a notch, a notched collar on said sleeve, a rocking lever on the sleeve adjacent to the notched collar, which lever has one end Weighted and the other end forked, a pin projecting from the side ofthe rocking lever, an arm on the above- Inentioned collar, and a rod connectingsaid arm with the piston-rod projecting from the top of the cylinder, substantially as shown and described. i

7. In asteam-trap, the combination, with the cylinders and pistons in the same, of a pipe for conducting the Water of condensation into the apparatus, an enlargement in said pipe, a float in the enlargement, a shaft operated by the oat, a bolt connected with said shaft,and a valve mechanism having a notch for receiving the end of the bolt, substantially as shown and described.

8. In a stean1-trap,the co1nl\ination,with cyl inders and pistons in the same,ofa valve mechanism operated from one of the piston-rods, a bolt for locking the valve mechanism, and a ioat-goveruor in the pipe connected With the apparatus, which float-governor isV connected with the bolt, substantially as shown and described.

9. In a steam-trap, the combination7 with a boiler and steamtrap, of a pipe for conducting the water of condensation to the trap,a pipe for f conduct-ing the Water from the trap to the boiler, a pipe connecting the lower part of the stean1-cylinder with the pipe that conducts the Water of condensation to the trap, a valve on the trap, and a pipe for conducting steam from the boiler to thev-alve on thetrap,substantially as shown aud described.

In testimony that I claim theforegoing as my invention I have signed my name in presence of two subscribing Witnesses.

HENRY GREAMER. Witnesses:

SIDNEY MANN, CARL KARP.

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