Convertible Churn And Ice-Cream Freezer. Page: 3 of 4
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627,492
and as illustrated in Fig. 1 the inner and outer
receptacles will be rotated in opposite direc-
tions.
In connection with the above - described
5 mechanism I employ a dasher 30, of any suit-
able construction, (that which is illustrated
in the drawings being designed simply to show
one form which may be used in connection
with the apparatus,) of which the stem 31 is
io stepped at its lower end in a socket 32 in the
bottom of the inner receptacle and extends
axially through the collar 27 and the hollow
shaft 23 to a point near the upper end of the
latter. When the apparatus is used as an
15 ice-cream freezer, this dasher-stem should be
held against rotation in order to beat the con-
tents of the inner receptacle during the freez-
ing operation, and the means which I have
adopted for thus securing the dasher-stem
20 consists of a clutch-arm 33, having a squared
inner end seated in a socket 34 in the upper
end of the dasher-stein and engaged at its
outer end with a stop 35, mounted upon the
supporting-bracket 3. This stop is adjust-
25 ably mounted upon the bracket by means of
a pivot 36, whereby the terminal eye 37 thereof
may be arranged either in operative relation
with the clutch-arm, as shown in Fig. 1, (in
which case a terminal stud 38 of said clutch-
30 arm engages the eye 37,) or in an inoperative
position, as illustrated in Fig. 2.
When the apparatus is to be used as a
churn, as shown in Fig. 2, the inner recep-
tacle 19 should be removed and the lower end
35 of the dasher-stem seated in the socket 17;
but in this case it is desirable to turn the
dasher in the opposite direction to the recep-
tacle 16, and therefore the clutch 33 is read-
justed to disengage it from the fixed stop 35
40 and engage it with an eye 39, carried by the
collar 22. Obviously rotary motion will be
communicated from the hollow shaft to the
dasher-spindle through the clutch-arm 33,
and therefore said collar-shaft and dasher-
45 spindle will rotate in a common direction.
Thus it will be seen that when the apparatus
is adapted for use as an ice-cream freezer the
dasher is held stationary, while the inner or
cream receptacle and the outer or ice recep-
5o tacle are rotated in opposite directions, this
relatively opposite movement of the cream
and ice receptacle having the effect of hasten-
ing the freezing operation, and in order to
prevent the contents of the outer receptacle
55 1[ from receiving rotary motion from the in-
ner receptacle or from the dasher (when the
device is used as a churn) I have adopted a
polygonal form of outer receptacle, the same
being preferably cross-sectionally octagonal.
6o This construction causes the ice to move with
the outer receptacle, and thus doubles the
motion of the ice in traversing the surface of
the inner receptacle, while when the appa-
ratus is used as a churn the broken walls of
65 the receptacle 16 aid in agitating the contents
of such receptacle.
From the above description it will be seenthat the rearrangement of parts necessary to
convert the apparatus from a churn to a
freezer, or vice versa, involves only the re- 70
moval or introduction of the inner receptacle
(with the suitable adjustment of the sliding
sleeve 28) and the engagement of the clutch-
arm with either the stationary or the movable
eye in order that the dasher may be held from 75
rotation or may receive rotary motion from
the tubular shaft.
Various changes in the form, proportion,
and the minor details of construction may be
resorted to without departing from the spirit 8o
or sacrificing any of the advantages of this
invention.
Having described my invention, what I
claim is-
1. In a convertible apparatus of the class 85
described,the combination with a supporting-
frame, of a revoluble, receptacle-supporting
frame, a shaft concentric with said frame, op-
erating devices for communicating rotary mo-
tion in opposite directions to said revoluble 90
frame and shaft, a dasher-stem concentric
with the revoluble frame and shaft, and clutch
mechanism for connecting the dasher-stem
to said shaft or a fixed object, substantially
as specified. 95
2. In a convertible apparatus of the class
described, the combination with a support-
ing-frame, of a revoluble, receptacle-support-
ing frame, a shaft concentric with said frame,
operating devices for communicating rotary ioo
motion in opposite directions to said revolu-
ble frame and shaft, a dasher-stem concentric
with the revoluble frame and shaft, and clutch
mechanism, including stationary and mov-
able eyes on said supporting-frame and shaft, 1o5
and a clutch-arm for connecting the dasher-
stem with one of said eyes, substantially as
specified.
3. In a convertible apparatus of the class
described, the combination with a support- rio
ing-frame, of a revoluble receptacle-support-
ing frame, a shaft concentric with said revo-
luble frame, operating devices for communi-
cating rotary motion in opposite directions to
said revoluble frame and shaft, a dasher-stem 115
concentric with the revoluble frame and shaft,
and clutch mechanism, including a stop piv-
otally mounted upon the supporting-frame
and having a stationary eye, a movable eye
carried by the said shaft, and a clutch-arm r20
connected with the dasher-stein for engage-
ment with one of said eyes, substantially as
specified.
4 In a convertible apparatus of the class
described, the combination with a support- 125
ing-franme, of a revoluble, receptacle-support-
ing frame, a tubular shaft concentric with
said frame, an inner receptacle concentric
with an outer receptacle supported by said
revoluble frame, a clutch connection between 130
said shaft and the inner receptacle whereby
motion may be communicated from the for-
mer to the latter, means for communicating
rotary motion in opposite directions to said
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Everhard, Joseph. Convertible Churn And Ice-Cream Freezer., patent, June 27, 1899; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth511914/m1/3/: accessed April 19, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.