USRE2159E - Improvement in feed-water heaters and filterers - Google Patents

Description

UNITED STATES PATENT OFFICE.

EDWIN R. STILWELL, OF DAYTON, OHIO.

IMPROVEMENT IN yFEED-WATER. HEATERS AND FILTERERS.

Specification forming part of Letters Patent No. 44,561, dated October 4, 1864 Reissue No. 2,159, dated January 2,3, 1866.

.To all whom it may concern/.-

Beit known that I, EDWIN R. rSTILWELL, of Dayton, in the county of Montgomery, in the State ot' Ohio, have invented a new and lmproved Mode of Heating and Purifying Water for Steani- Boilers; and I dohereby declare that the following is a full and ex'act description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The nature of my invention consists in the Inode of heating and purifying the feed-Waterr for steam-boilers.

To enable others skilled in the'art to make and use my invention, I will proceed to describe its construction and operation.

Figure Irepresents a vertical section of a feedwater heater and iilter. Fig. 2 represents a perspective view of a depositing-plate.

Arepresentsma tight vessel of rectangular form. The vessel has an opening, through which the plates a a a are removed when necessary to cleanse them of the deposits. This opening is closed by a plate, (shown by black dotted lilies c c c c.) An oriiice for a waterpipe is shown at r. A series of plates, a a a, designed chieily as depositing-surfaces, and

- kwhich may be constructed of variable forms. V'lhe'only essential requisite is that provision be made for the free passage ofthe steam and Water in opposite directions. vThese plates are constructed as shown at Fig. 2. a is a part cut away to form an orifice for the passage of v the steam and Water, and these plates are placed into the vessel A with the orifices alternating, as represented at a', Fig. l.

A perforated plate'is shown at d, on which is placed any suitable material for filtering.

The Water enters the vessel Av at f andv passes to and fro over the plates successively in the direction shown by the black arrows.

depriving the Water of its foreign elements,

which are deposited on the plates a a a. As the steam reaches the upper part of the vessel it escapes through the pipe e. When the water has passed the plates, it passes through a filtering material, which deprives the Water of the loose materials which pass the plates and' through the perforated plate d, and out ot' the pipeI r to the steam-boiler.

The object of attaching a pipe atm, as described, is to provide for a freer passage of the steam thanr it' the entire volume of steam had to pass the rounds of the plates.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

l. The depositing-plates a a a, constructed and arranged substantially as described, and for the purposes speciiied.

2. The arrangement of the steam-pipes m and n with reference to the plates a a a, substantially as described, and for the purposes specitled.

3. The combination of the vessel A, the plates t a a, the plate d, the steam-pipes m, u, and e, and water-pipes f and r, substantially as described.

EDWIST R. STILVVELL.

Witnesses THos. D. MITCHELL, JosEPII H. STEELE.

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