An Improved Gearing for Working Upright Dash Churns.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
An Improved Gearing for Working Upright Dash Churns.
JOHN CLARKE, Carpenter, of Castle Bellingham, in the County of Louth, Ireland,
do hereby declare the nature of this invention to be as follows:-
In the drawing attached A B C D represents an upright dash churn sitting in
Attached to the two uprights
a frame EFGH to which is attached the dash K K.
of the frame is an axle L L worked by a handle M. To the axle L L is attached
a fly wheel N N connected with a pulley 0 0 by means of a belt which drives a
The balance
second axle P, P, to which is attached a balance wheel R, R,
wheel R, R, is connected with the upright dash K, K by a piston rod S, S, pro-
vided with two spindles t and t¹. The spindle t' is so connected with the dash
that it can be moved up or down to suit the depth of the milk in the churn. The
spindle is worked in a slot as shown in section of balance wheel to vary
the plunge of dash to any required depth. A section of balance wheel is shown
at rr and weighted as shown in dark semicircle v, vso that when v, v,
uppermost the dash is lowest in the churn. The weight v, v, is suited to force
dash upwards through cream or milk leaving an even strain in working of handle.
The pole of dash is provided with a screw below the spindle t¹ to join or disjoin
it when required. The axle L L can be worked by steam or horse power as well
as by hand, and the fly-wheel N N and the pulley OO can be replaced by two cog
wheels working similarly to the fly wheel and pulley respectively.
191st dow of A noust 1897
is
An Improved Gearing for Working Upright Dash Churns.
I, JOHN CLARKE, of Castle Bellingham, in the County of Louth, Ireland, Carpenter,
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 follow-
ing statement: —
My invention relates to improved gearing for working upright dash churns
by means of which I obtain with a perfectly vertical movement of the dasher
stem, means for readily adjusting both the stroke and the level of the dasher and
finally am enabled to balance the upstroke of the dasher.
Referring to the drawings filed with my Provisional Specification, A, B, C, D,
represents an upright dash churn seated in a frame E, F, G, H. In bearings
secured to the uprights F, H, and E, G, of the frame revolves a spindle LL
worked by a handle M. On the spindle L L is mounted a belt pulley N N or a
flywheel with a turned face to receive a belt which conveys motion to a belt

page_text: pulley OO mounted on a spindle P, P, revolving in bearings secured to the
frame E, F, G, H.
Instead of conveying motion from the spindle L, L, to the spindle P, P', by means
of a belt and belt pulleys I may employ any other suitable gearing such as rope,
chain, bevel or spur gear, in which cases I may also mount a Hywheel on the
spindle L L.
On the inner end of the spindle P P is mounted a crank disc R R so weighted
at V, V, (Sheet 1) as to balance or to assist in balancing the resistance on the
up stroke of the dasher and thus make the working of the churn more regular
and even.
The crank pin T is adjustably mounted in the crank disc so that its eccentricity
may be readily altered when it is required to shorten or lengthen the stroke of
the dasher. As an example I provide the crank disc R, R, with a slot in which
the crank pin may be secured at any desired point by a nut (see Sheet 2) at the
back of said disc, or I may employ a screw or other suitable means for adjusting
and securing the crank pin T in any desired position.
Motion is communicated from the crank pin T to the upper part of the dasher
rod KK by a connecting rod S, S. The pin T" of the connecting rod S, S, is
adjustably secured to the upper part of the dasher rod K K passing through either
one of a series of holes or a slot so as to be able readily to alter the level of the
dasher. The lower part of the dasher rod K K is united to the upper part by
screwing as shewn or in any other convenient manner.
The upper part of the dasher rod K K is provided with a bearing secured to the
top of the frame so that the motion of the dasher may be vertical.
When the churn is driven by steam or other motive power I provide suitable
gearing for driving either the spindle L, L, or the spindle P, P, as may be desirable.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:
-
1. In a dash churn the employment of a crank disc in which the crank pin is
adjustably secured and which is so weighted as to counterbalance partially or
wholly the resistance during the upstroke of the dasher for the purposes set forth.
2. The gearing for working a dash churn consisting of means for communicating
motion to a crank shaft means for adjusting the eccentricity of the crank pin,
a connecting rod and means for adjusting the distance of the dasher from the
connecting rod pin substantially as set forth.
3. The construction of upright dash churn as shewn on the drawings.
Dated this Sixth de
1000
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.