Improved Means for Preventing the Freezing of the Liquid Contents of Vessels.
Year: 1892

page_text: עעע
Improved Means for Preventing the Freezing of the Liquid Contents
of Vessels.
I, GEORGE WASHINGTON HOGLEN, residing at No. 20 Fifth Street, Dayton,
in the County of Montgomery and State of Ohio, United States of America,
Gentleman, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement :-
It is the object of my invention to provide an improved means for preventing
the freezing of the liquid contents of vessels, such for instance as fire extinguishers
of those classes which are usually placed in the rooms and halls of buildings and
often in situations where they are exposed to a very low temperature, and which
are designed to be at all times ready for instant use. The freezing of their liquid
contents sometimes causes the bursting of the reservoir, and, in any event, renders
the device temporarily useless.
With such object in view my invention consists in the parts and combinations
thereof hereinafter more particularly described and claimed.
In order to make my invention more clearly understood I have shown in the
accompanying drawing means for carrying the same into practical effect, without,
however, limiting my improvements to the exact construction which, for the sake
of illustration, I have delineated.
In said drawing :-
Figure 1 is a vertical sectional view of the body or reservoir of a fire extinguisher
embodying my improvements.
Figure 2 is a sectional view of a portion of the same on line 2-2 of Figure 1.
Referring to the drawings A indicates the body or reservoir of the extinguisher,
which may be of any desired material. In the drawing it is shown as made of
sheet metal, and as adapted for a fire extinguisher of the class known as chemical,
in which an acid and alkali are mingled in the vessel and projected in a stream
therefrom, but it may be formed of glass and adapted for that class of extinguishers,
the liquid containing chamber of which is designed to be broken when the device
is used.
In order to prevent the freezing of the alkaline solution, I provide the extinguisher
chamber A with a non-conducting covering, which will protect it from sudden
changes of temperature. According to my improvements the chamber A is
surrounded by a casing J, between which and the chamber is left a considerable
space. The outer surface of the chamber and the inner surface of said casing are
covered, Fig. 2, with a layer of corrugated tar board or paper K', and between
these layers the space is filled with wool, felt, or other equivalent material L. The
contents of the chamber are thus most effectually protected, while any moisture or
water of condensation forming upon the metal surface will be permitted to pass
down the corrugations of the paper and prevented from dampening the felt and
causing it to lose its non-conducting character. The bottom J' of the casing may
be removable, as illustrated, for the purpose of causing access to the packing.
Pins, fixed in the casing J, and slots in the bottom, Fig. 1, serve to securely
hold the latter in place.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. In a vessel for fire extinguishers and other purposes the combination with the

page_text: chamber A, and an outer casing, of a non-conducting filling consisting of non-
conducting board or paper K' and interposed material L, substantially as set
forth.
2. In a vessel for fire extinguishers and other purposes the combination with the
chamber A, and the non-conducting filling, of the casing J and the removable 5
bottom J', substantially as set forth.