IMPROVEMENTS IN BOX CHURNS
Year: 1887

page_text: Date of Application, 2nd May, 1887.
Complete Left, 20th May, 1887.
Complete Accepted, 16th Aug., 1887.
I ANDREW COULTER of Mountcharles in the County of Donegal Ireland, Builder do
hereby declare the nature of my invention for IMPROVEMENTS IN BOX CHURNS to be as
follows, referring to the accompanying drawings :-
The churn stands upon a strong wooden frame (a) raising it a convenient height
from the ground.
The body of the churn to be an oblong box (b) divided lengthwise into two chambers
(called respectively the beating chamber (c) and the butter chamber (d)) by a centre
board (e) sliding in upright grooves (f) cut in the wood forming ends of churn.
The beating chamber (c) is subdivided into three smaller chambers by means of two
perforated doors (g) sliding in grooves formed in one side of churn and one side of
centre board, the middle chamber (h) of these three to occupy one half the entire
length of churn and the two end chambers one fourth each. Three large openings (i)
are made in centre Board extending from bottom of churn one third of the height
allowing free ingress and egress of the milk from beating to butter chambers.
The churning is performed by two propellors (j) working in the central compart-
ment of the beating chamber they are of wood full breadth and depth of beating
chamber and with arms extending up through the lid forming levers, these levers are
hinged to transverse bars (k) crossing the beating chamber at top of division
boards (g).
The motion is imparted to these levers by means of an axle and crank (!) to which
they are attached by connecting rods (m) from upper ends of arms.
The axle or spindle is carried by a cast metal arm (n) or bearing firmly attached to
the wooden frame (a) upon which the churn stands, so that the churn can be removed
from the stand leaving all the mechanical parts attached to the frame.

page_text: The axle is driven by a fly wheel (o). As an alternative the propellers can be driven
by means of a lever (p) (at end of churn) and connecting rods. In either case
on motion being imparted to the levers the milk is violently agitated by propellors
alternatly rushing from beating chambers through perforated doors to butter chamber
and vica versa
A lid (q) is placed over the entire top of churn flush with the outside edge and is
kept in position by means of a deep flange (r) screwed to sides and ends of body of
churn and extending above thickness of lid. In this lid there are openings giving
access to butter and beating chambers.
All the parts are easily detachable the division boards can be taken out for washing
and the spindle and crank withdrawn at will.

page_text: I ANDREW COULTER of Mountcharles in the County of Donegal Ireland Builder 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, reference being made to the drawings accompanying my provisional
specification:
--
The churn stands upon a strong wooden frame (a) raising it a convenient height
from the ground.
The body of the churn to be an oblong box (6) divided lengthwise into two chambers
(called respectively the beating chamber (c) and the butter chamber (d)) by a centre
board (e) sliding in upright grooves (✓) cut in the wood forming ends of churn, the
beating chamber (c) is subdivided into three smaller chambers by means of two
perforated doors (g) sliding in grooves formed in one side of churn and one side of
centre board the middle chamber (h) of these three to occupy one half the entire
length of churn and the two end chambers one-fourth each. Three large openings (i)
are made in centre Board extending from bottom of churn one third of the height
allowing free ingress and egress of the milk from beating to butter chamber.
The churning is performed by two propellers (5) working in the central compart-
ment of the beating chamber they are of wood full breadth and depth of beating
chamber and with arms extending up through the lid forming levers these levers
are hinged to transverse bars (k) crossing the beating chamber at top of division
boards (g).
The motion is imparted to these levers by means of an axle and crank (1) to which
they are attached by connecting rods (m) from upper end of arms.
The axle or spindle is carried by a cast metal arm (n) or bearing firmly attached to
the wooden frame (a) upon which the churn stands, so that the churn can be removed
from the stand leaving all the mechanical parts attached to the frame.
The axle is driven by a fly wheel (o). As an alternative the propellers can be driven
by means of a lever (p) (at end of churn) and connecting rods.
In either case on motion being imparted to the levers, the milk is violently agitated
by propellers, alternatly rushing from beating chamber through perforated doors to
butter chamber and vica versa.
A lid q is placed over the entire top of churn flush with the outside edge and is
kept in position by means of a deep flange (r) screwed to sides and ends of body of
churn and extending above thickness of lid, in this lid there are openings giving
access to butter and beating chambers.
All the parts are easily detachable the division boards can be taken out for washing
and the spindle and crank withdrawn at will.

page_text: 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
1st. The internal arrangement of churn and division of beating chamber by means
of perforated doors (g).