IMPROVEMENTS IN THE MODE OF CLEANING MILK-VESSELS, AND IN APPARATUS THEREFOR."
Year: 1881

page_text: LETTERS PATENT to Sidney Job Pocock, of Vauxhall, in the County of
Surrey, for an Invention of "IMPROVEMENTS IN THE MODE OF CLEANING
MILK-VESSELS, AND IN APPARATUS THEREFOR."
PROVISIONAL SPECIFICATION left by the said Sidney Job Pocock at the
Office of the Commissioners of Patents on the 30th May 1881.
SIDNEY JOB POCOCK, of Vauxhall, in the County of Surrey.
"IMPROVEMENTS
IN THE MODE OF CLEANING MILK-VESSELS, AND IN APPARATUS THEREFOR."
This Invention consists of an arrangement of brushes made to revolve in or with
and combined with substances or liquids, such as soda, chalk, or alkaline solution,
or other substance or liquid which will effect the saponification of the fatty matters
and the neutralization of the acid matters adhering to vessels used for holding
milk, particularly churns and travelling cans, for the purpose of cleaning said
vessels both inside and out. The apparatus for this purpose consists of two or
more rotating brushes, applied internally and externally to the can, said brushes
being of a convenient form and mounted on toothed wheels geared one within the
other, said wheels being geared to a pulley wheel to be worked by hand or other
motive power; or instead of brushes, beaters, or stirrers of any convenient material
may be used and revolved at sufficiently high speed to cause the solution or
cleansing substance or act as a scourer itself.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Sidney Job Pocock in the Great Seal Patent Office on the
30th November 1881.
SIDNEY JOB POCOCK, of Vauxhall, in the County of Surrey.
"IMPROVEMENTS
IN THE MODE OF CLEANING MILK-VESSELS, AND APPARATUS THEREFOR."
My Invention consists of an arrangement of brushes or stirrers made to revolve
in water mixed with soda, chalk, or other substances which will effect the saponi-
fication of the fatty matters and the neutralization of the acid matters adhering to
vessels used for holding milk, particularly churns and travelling cans, for the
purpose of cleansing said vessels both inside and outside. The apparatus consists
essentially of two or more revolving brushes or stirrers applied internally and
externally to the milk receptacle, and mounted in suitable bearings, the simul-
taneous motion of the brushes or stirrers being obtained by means of a set of
tooth-wheels or friction-wheels mounted on the shaft of the brushes or stirrers and
driven by a pulley. In the accompanying Drawings Fig. 1 is a vertical section,
Fig. 2 a cross-section, and Fig. 3 a horizontal section of a cleaning apparatus
embodying my Invention. A is a trough or liquid receptacle, in which the movable
parts are mounted; B, C, and C₁ are the revolving brushes driven by the shafts
b, c, and c; E, F, and G are the driving wheels, which may be tooth-wheels or
friction-wheels; H is a casting containing the bearings for the driving shafts; and
I, I, are bearings for holding the rear ends of the brushes; J is a circular brush
mounted on the shaft of the brush B, and serving to cleanse the bottom of the
vessel;
K is a set screw for fixing the tooth-wheel or friction-wheel F on its shaft,
the wheel F being made movable along its shaft, so as to set the wheels E and G
in or out of gear; L are discs keyed on the central shaft, and forming part of the
inner brush; M, M¹, are the driving pulleys, and N, N', beams or ledges for sup-
porting the can or vessel while it is treated by the brushes; these ledges are
preferably made of wood lined with flat iron; O is a tap for drawing off the liquid
contained in the trough. An overflow pipe may also be used. The vessel to be
cleansed is stripped over the central brush from the rear end of the trough, and the
apparatus set in motion, whereby the brushes B and J treat the inside, and the
brushes C and C¹ the outside of the milk vessel. In order to clean the cover of
the milk-can the wheels E and G are set out of gear by shifting the wheel F on its
shaft, and the discs L, L, which carry the circumference of the brush B, are removed
from the central shaft, so as to leave only the brush J. If the cover has a special
shape the brush J is replaced by one which fits into the inside of the cover for
cleansing the latter. The driving pulleys M, M', may be replaced by a rope pulley,
and driven by means of a treadle, or by horsepower, or in any other suitable way.
CLAIMS.
1st. The application of two or more brushes or stirrers revolving in a liquid
containing soda, chalk, or equivalent substances, so as to act simultaneously on the
inside and outside of a milk-can or similar vessel, substantially as and for the
purpose described.
2nd. The combination of brushes B, C, C₁, and J with shafts b, c, c¹, driving
wheels b, c, c¹, and trough A, substantially as and for the purpose described.