Milk-Warmer Page: 3 of 4
[2], [2] p. : ill. ; 23 cm.View a full description of this patent.
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UNITED STATESPATENT OFFICE.
ELLA A. AULT, OF CRAFT, TEXAS.
MILK-WARMER.Specification of Letters Patent. Patented Sept. 10, 1918.
Application filed February 3, 1917. Serial No. 146,314.To all whom it may concern:
Be it known that I, ELLA A. AutT, a citi-
zen of the United States, residing at Craft,
in the county of Cherokee and State of
5 Texas, have invented certain useful Im-
provements in Milk-Warmers, of which the
following is a specification, reference being
had therein to the accompanying drawing.
The present invention relates to a device
10 for heating milk with-the purpose of souring
the same in the preparation of the, milk for
churning.
It is an object of the present invention to
provide a device of this character which en-
15 tirely houses the milk, and by means of
which the milk may be maintained at a con-
stant predetermined temperature to effect
the souring of the milk in a relatively short
time, and to protect the milk during this
20 treatment.
It is another object of the present inven-
tion to provide a housing or cabinet for the
milk which has an air vent or opening pro-
tected to prevent access of dust to the cabi-
25 net, and which may be opened and closed to
the desired extent for regulating the passage
of air into and from the cabinet.
The above and other objects and advan-
tages of this invention will be more parti-
30 cularly brought out in the following specific
description of the present preferred embodi-
ment, the same being illustrated in the ac-
companying drawings, wherein
Figure 1 is a front elevation of a device
35 constructed according to the present inven-
tion; '
Fig. 2 is a top plan view thereof, with the
cover removed;
Fig. 3 is a longitudinal vertical section
40 taken centrally through the device;
Fig. 4 is a transverse section taken cen-
trally through the device; and
Fig. 5 is a detail plan view of the cover.
Fig. 6 is a side elevation of the dove-tail
45 block and its stem for use with the cover.
Referring to these drawings, wherein like
numerals indicate similar parts throughout
the several views, 10 designates an outer
shell provided with an inner shell 11 spaced
50 from the inner walls of the outer shell and
providing therebetween a space adapted to
be filled with a heat non-conducting packing
12. The shells 10 and 11 have a common
bottom 13, and are supported at a suitable
55 distance above the ground or floor by legs 14
of any approved form..A relatively small container 15 is ar-
ranged within the shell 11, and is supported
centrally therein by means of straps 16 or
the like, which project inwardly from the 60
shell 11 and are secured to the ends and sides
of the container 15 for suspending the latter
above the bottom 13 and holding it in spaced
relation from the end and side walls of the
shell 11. The container 15 is adapted to re- 65
ceive a number of receptacles 17 in which
milk or the like may be placed when it is de-
sired to warm or heat the same.
The chamber within the shell 11, and be-
tween the walls thereof and the container 15, 70
is adapted to be filled with a body of water;
the same being introduced into the cabinet
or device through a water inlet pipe 1S
which extends inwardly through the shells
10 and 11 and may be provided upon its 75
upper end with a funnel 19 or the like, into
which water may be easily poured. A drain
pipe 20 is arranged adjacent to the bottom
12 of the cabinet and projects rearwardly
through the shells 11 and 10, respectively, 80
and is provided upon its outer en-d with a
spigot 21 or the like for closing the drain
pipe.
For the purpose of protecting the milk or
other material placed in the container 15, 85-
and for retaining the heat within the cabi-
net, a cover 22 is provided, the same being
seated upon the upper edges of the shells 10
and 11 and having, near one end, a screen
23, or other foraminous diaphragm, admit- 90
ting of the passage of air through the cover.
Beneath the screen 23 is placed a sheet of
cloth 24, or the like, permitting free passage
of air through the cover and at the same time
excluding dust and the like which passes 95
through the screen 23. The cover 22 is pro-
vided with a slide or closure 25 which is
mounted to slide on the upper face of the
cover 22 and is guided by means of strips
26 secured to the top of the cover 22 and ad- 100
jacent to the opposite longitudinal edges
thereof. The closed end of the cover 22 is
provided with a longitudinally extending
dove-tail slot 27 into which is fitted a dove-
tail block 28, the latter having a stem 29 105
projecting upwardly through an opening
formed in the slide 25 and carrying a thumb
nut 30 adapted to be tightened against the
top of the slide to bind the block 30 in the
groove 27. When the thumb nut 30 is 110
loosened, the slide 25 may be moved into po-
sition over the screen 23, to more or less close1,278,562.
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Ault, Ella A. Milk-Warmer, patent, September 10, 1918; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1257572/m1/3/: accessed July 1, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.