US133189A - Improvement in feed-regulators for steam-boilers - Google Patents

Description

H R. BERRYMAN. improvement in Feed- Reg ulators for St eam N0.

-Boilers.

Patented Nov.

ROBERT BERRYMAN, OF HARTFORD, CONNECTICUT.

Specification forming part of Letters Patent No. 133,189, dated November 19, 187:2.

To all whom it may concern.-

Be it known that I, ROBERT BERRYMAN, of the city and county of Hartford and .State of Connecticut, have invented an Improved Regulator, of which the following is a specification My invention relates to an apparatus for regulating the passage of steam or water to or from boilers, heaters, steam-traps, pumps, &c.; and consists of a steam-tight casing, A, containing a hollow float, B, open at the, top, and suspended from a lever, which extends through the casing and has on its outer end a weight, Z. This lever may be connected, by suitable links or rods, to a cook or valve in a steam or water pipe, and the casing may be perforated to connect thereto pipes b 0 communicating with the steam and water spaces of a boiler, the admission of water to which depends upon the posi-- tion of the lever.

Hollow open floats heretofore used in alarms and indicators have generally depended for their upward movement upon the uncertain action of springs, or upon the pressure of steam on the valves to which the floats were connected.

Itwill be seen,however, thatin thepresentinstance the full power of the weight lis exerted to raise the float the moment the latter is submerged on water being admitted to the vessel A. By this use of a weighted lever in connection with the open float such a force is applied to the valve or cook which is to be adjusted (both on admitting water to and discharging it from the vessel A) that the movements are more prompt, positive, and certain than those resulting from the action of springs, While ordinary cocks may be substituted for valves operating by steam pressure, heretofore employed.

The operation of the apparatus is the same whether the movement of the lever eftects the turning of a cock in the steam-pipe of the sup ply-pump or in the discharge-pipe of the casing A, Fig. 5, when the apparatus is used as a steam-trap. In either case the lever acts promptly and with considerable force to either open or close the valve or cook with which it is connected.

The case A or its cap may be cast with a hollow projection, W; and the lever for sup porting the float consists of arms 70 9, connected to a rock-shaft, h, extending through a stufi ing-box at one side of the projection k By thus constructing the case with a hollow pro-. jection the length of the inner arm of the lever may be increased without unduly enlarging the casing, and the packing of the lever at the point where it extends through the casing ismore readily effected than if it passed through the rounded body of the same.

I am aware that bucket or open floats and counter-balances are not new; that the same have been arranged within boilers, so that the weight should preponderate while the proper water-level was maintained; and I am also aware that an apparatus similar to mine in construction, but ditferin g in'principle and op eration, has been used. I therefore disclaim the said features and combinations, and claim as my invention' The case A, the double-armed horizontal vi- -brating lever and rock-shaft k h g, extending laterally through a packed opening in the case, a bucket-float attached to the inner endof the lever, and a preponderating weight attached to the outer arm, all constructed, combined, and arranged to operate substantially as set forth.

ROBERT BERRYMAN. Witnesses R. H. EDDY, J. R. SNOW.

a'rlvr Drmon.

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