US55598A - Improved mode of covering steam-boilers - Google Patents

Description

UNITED STATES PATENT OFFICE.

JOHN ASHUROFT, OF NEW YORK, N. Y.

IMPROVED MODE OF COVERING STEAM-BOILERS.

Specification forming part of Letters Patent No. 55,598. dated J une 19, 1866.

To all whom, it may concern:

Be it known that I, J oHN AsncRoET, of the city, county, and State of New York, have invented a new and Improved Mode of Covering Steam-Boilers with Felt or other Non- Oonductin g Material; and I do hereby declarethat the following is a' full and exact description thereof, reference being had to the accompanying drawings, in which like parts are indicated by like letters.

rIhe nature of my invention consists in lso covering a steam boiler or pipe with felt or any other non-conducting material that several desirable and important results may be obtained thereby, such as economy, the saving of trouble and loss of time, as also guard further against accidents from lire. To effect these purposes Ido not place my felt or other non-conducting material directly upon the eX- terior surface of the boiler or pipe, for this destroys in a short time its useful function, to say nothing of other well-known objections; but I so arrange it that an air-space intervenes between the boiler and the felt by supporting the latter on a suitable frame-work surrounding the former and a short distance from it.

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

In the drawings, Figure l represents a side view of a boiler and a section of the felting, one-half of the latter being removed. Fig. 2 represents a iront view of a boiler and a section of the felting surrounding the same. Figs. 3 and 4 represent, respectively, longitudinal and transvers sections of a steam-pipe, showing the application of my invention to it.

A shows an ordinary boiler, and B a steampipe; C, the ordinary felt or other non-conducting material used for covering these.

Instead of placing the felt directly upon the surface of boiler or pipe, I construct a metallic frame-work around each, removed a short distance, so that an air-space, D, intervenes between boiler or pipe and the felt. This framework E can be easily constructed or built up of wire, small iron bars, gas-pipe,

(unwelded,) forming an open frame with meshes. The size of the metallic bars used or the size of the meshes must depend on the size of the .boiler or pipe, being a matter of mere judgment. This frame-work must be supported by suitable studs or struts d, and it can be constructed'in sections, so as to be easily removed for any needed repairs to boiler. The felt can be secured to this frame-work in any suitable manner, and in a way that it, too, can be easily removed.

rIhe advantages of my invention are as follows: It saves the feltin g or other covering from being destroyed or injured by direct contact with the surface of the boiler, which invariably happens when so applied. The airspace between the heated surface of boiler and felt prevents a large proportion of loss of heat by radiation, thereby reducing the quantity of fuel consumed. In case of repairs the covering can easily be removed and replaced without injury to it. The covering not being in direct contact with boiler, the danger from re is obviated. Such danger exists by the old application of the felt.

When animal-hair is used it is secured or applied (as usual) in canvas.

In case of a leak, in the ordinary application of felt, it is rotted by the steam which escapes from the boiler. In my arrangement this is obviated to a great, if not entire, extent.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

Covering a steam-boiler pipe or other heater with felt` or other non-conducting material, when the latter is supported on a frame-work removed from and surrounding the former, not` being in direct contact, but having an airspace intervening between said felt and boilerpipe or other heater, constructed and operated substantially in the manner described, and for the purpose set forth.

JOHN ASHCROFT.

Witnesses:

S. S. FAHNEsTocK, A. G. KLINK.

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