US547776A - Elliot r - Google Patents

Description

STATES- ATENT OFFICE.

ELLIOT R. FITCH, OF EAST HAMILTON, NEW YORK, ASSIGNOR OF ONE-HALF TO O. S. MUNSON,

OF SAME PLACE.

DAM PER R HEAT-DEFLEcToR.

SPECIFICATION forming part of Letters Patent No. 547,776, dated October 15, 1895.

' Application filed January 24,1895- Serial No. 536,006. (No model.)

To a/ZZ whom it may concern:

Be it known that I, ELLIOTl R. FITCH, of East Hamilton, 'in the county o f Madison and State of New York, have i-nvented certain new and useful Improvements in Dampers or lar numeralsbf reference refer to correspondzo ing parts in the several views, Figure 1 shows a bottom view of the damper in connection with a cross-section of the pipe in which it is located. Fig. 2 shows a vertical section of the damper in connection with a section of 2 5 the pipe in which it is located. Fig. 3 shows a section of the damper taken at right angles from the section shown in Fig. 2. Fig. 4 shows in perspective the deflector portion of the construction in connection with the shaft or spin- 3o dle on which it and the body of the damper are mounted. Fig. 5 shows the damper, partially in section, of a modilied form of construction. Fig. 6 shows a section of damper of still another modifled form of construction.

Referring to the reference-numbers in a more particular description of the device, 1 indicates the stovepipe or other iiue in which the damper is mounted. The damper consists of a hollow body 2, composed of two diverging cone-like portions i?a and 2b, the walls diverging from the central or axial line of the damper, and the body of the damper being round to correspond with the pipe in which it is located.V The lower side of the damper is open, as shown at 3, and to the upper side is attached at 4t a conical shell or tube 5, with the smaller end downward, and, as shown in Figs. 2 and 5, terminating short of the lower side of the body of the damper, but, as 5o shown in Fig. 6, projecting somewhat below the lower side of damper-body. Around the upper end of the conical shell 5 is provided a series of small holes or openings 6, which communicate with the hollow body close to the upper side. As shown in Figs. l to 4.x, inclusive, the damper is mounted on a spindle or shaft 7, which has bearings in the opposite sides of the pipe-section and is provided with a ring or thumb-piece 8, by which the damper can be readily turned.`A Centrally located in 6o thedamper are arranged the deflector-plates 9 and l0, which are pivoted together by a rivet 11, and are provided on their lower edges with interlocking hook-like projections 13 and 14. The plates 9 and 10 are prefer- 65 ably composed of sheet-iron and theupper portions of the plate are bent over, forming the overhanging deilectors 9a and 10a, respectively, and these deiiectors may be bent, as shown in dotted lines, to form a larger or 7o smaller exit opening through the upper side of the damper, as clearly indicated by dotted lines in Fig. 2. The spindle 7 may be omitted from the construction, as is shown in Figs. 5 and 6, in which event a pivotal projection 7a 75 is riveted, cast, or secured on one side of the body of the deector, and ahandle 7b is similarly secured on the opposite side, the handle and pivotal projection '7a forming the pivots on which the device is adapted to turn. 8o When a spindle is provided, the plates 9 and 10 arebent at a proper place to allow the spindle to pass between them, as shown in Figs. 2, 3, andA at a. When the spindle is omitted, as before described, this provision may be also omitted, as appears in Figs. 5 and 6. The deflector-plates 9 and 10 are secured in position by the shoulders b and c thereof engaging upon the upper and lower ends, respectively, of the tube or shell 5, and when 9o the hook-like projections 13 and 14 are locked it maintains itself in position. These dedector-plates may readily be removed by disen- -gaging the hook-like projections 13 and 14,

and for this purpose they may be bent, if de- 9 5 sired, when the two plates will turn relatively upon the pivot 11 to disengage the shoulders and allow the plates to be removed.

When the device is not in use, it is turned edgewise to the axial line of the pipe, as is roo customary in the use of dampers of ordinary construction, in which position it affords less resistance to the draft. Vhen the device is brought into operation, it` is turned transversely to the draft, in which case the hotter portions of the gases passing through the pipe or flue pass through the conical tubular shell 5, and the colder portions pass between the shell 5 and the walls of the damper and thence through the holes or perforations 6, where they are projected outward transversely to the general direction of the gases passing through the tube 5, forming the desired impediment to the draft without providing any positive and complete check to the draft or entirely closing the draft-flue. The delectors 9 and l0a may be bent so as to more or less close the opening in the upper side of the draft-line, depending on the strength of the draft and the heating apparatus to which it is connected. The constructions shown in Figs. l to 5, inclusive, are, as shown, made of cast metal, while the construction shown in Fig. 6 is made of sheetiron.

What I claim as new, and desire tosecure by Letters Patent, is-

1. In a damper, a hollow body of a double conical form open at each side, a central tubular shell connecting with the body of the darnper at the upper open side, and provided with a series of openings adjacent to the upper open side furnishing passage-ways from the interior of the tubular shell, and a handle for turning the damper, combined substantially as set forth.

2. The combination in a damper of a hollow double conical form, as shown, open at either end, of a conical tubular shell centrally secured in the damper, flexible dcflector plates located over the opening in the upper side of the damper, and ahandle substantially as set forth.

3. A damper having a tubular shell open at its upper and lower ends, removable detlector plates pivoted together and provided with locking projections and flexible wing portions extending over the upper open end of the tubular shell, and a handle, combined substantially as set forth.

In witness whereof I have affixed my signature in presence of two witnesses.

ELLIOT R. FITCH.

Witnesses:

C. S. MUNsoN, LEON L. CLARKE.

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