Improvements in Sausage Filling Machines.
Year: 1894

page_text: Date of Application, 27th Apr., 1894
Complete Specification Left, 26th Jan., 1895-Accepted, 9th Mar., 1895
PROVISIONAL SPECIFICATION.
Improvements in Sausage Filling Machines.
1, JOHN ROBERT BIRD, of 10 Morrison Street, in the City of Glasgow,
Engineer, do hereby declare the nature of this invention to be as follows:-
:-
This invention has for its object to simplify and improve the construction and
operation of sausage filling machines.
The improved machine comprises a cylinder or other vessel into which the meat
is placed and which is carried upon trunnions by a framing also carrying a hydraulic
or other cylinder placed vertically over the meat cylinder. The meat cylinder is
open at its upper end but has a closed bottom with a central outlet which may be
divided or formed with two or more branches provided with cocks to regulate the
flow of meat towards the filling nozzles. The piston rod of the hydraulic cylinder
has on its lower end a piston¸ fitting the meat cylinder, which piston is formed by
preference of two discs of metal having between them a layer of india rubber or
other similar material acting as a packing ring to fit the meat cylinder. Valves
are fitted in the piston to admit air to the meat cylinder and so permit of the piston
being easily withdrawn.
A notched sector is attached to the bottom of the meat cylinder and a lever is
provided on which is formed a projection held against the sector by a spiral spring
so as to lock the cylinder either in a vertical position or at an angle.
A valve of D form is attached to the machine and is operated by a hand lever
to admit the water either to the top or bottom of the hydraulic cylinder.
With
The meat cylinder may be tilted or held in a vertical position by means of a
small hydraulic cylinder acting on a lever keyed to one of the trunnions.
this arrangement a special valve is used controlling the water supplying both the
main hydraulic cylinder and the tilting cylinder. The valve is so arranged that
the port admitting water to the top end of the main cylinder cannot be uncovered
unless the meat cylinder is in a vertical position, and the port admitting water to
the tilting cylinder cannot be uncovered unless the main piston is at the top of its
stroke.
The whole apparatus may be arranged with the cylinders in a horizontal position.
instead of in a vertical position.
Improvements in Sausage Filling machines.
I, JOHN ROBERT BIRD, of 10 Morrison Street, in the City of Glasgow,
Engineer, do hereby declare the nature of this invention and in what mancer
the same is to be performed, to be particularly described and ascertained in and
by the following statement :-
This invention has for its object to simplify and improve the construction and
operation of sausage filling machines.

page_text: As illustrated in back and side elevations of one modification at Figures 1 and 2
and in like views of another modification at Figures 3 and 4, the improved machine
comprises a cylinder or other vessel A into which the meat is placed and which is
carried upon trunnions B, B', at right angles to its vertical axis by a framing C
also carrying a hydraulic or other cylinder D placed vertically over the meat
cylinder. The meat cylinder A is open at its upper end but has a closed bottom
with a central outlet which may be divided or formed with two or more branches E
provided with cocks to regulate the flow of meat towards the filling nozzles E¹.
The piston rod F of the hydraulic cylinder D is packed with leather in the usual
way and passes through a gland in the bottom of the hydraulic cylinder D. On
the lower end of this piston rod is a piston G fitting the meat cylinder A, which
piston is or may be formed of two discs of metal having between them a layer of
india rubber or other similar material acting as a packing ring to fit the meat
cylinder A, valves g being fitted in the piston G to admit air to the meat cylinder A
and so permit of the piston being easily withdrawn.
The cylinder A is tilted by hand when it is desired to fill it and in the
modification shown by Figures 1 and 2 a notched sector H is attached to or formed
on the bottom of the meat cylinder A in conjunction with which a lever I is
provided on which is formed a projection i held against the sector H by a spiral
spring J. This projection i enters either of the notches in the sector so as to
lock the cylinder A either in a vertical position or at an angle, whilst being
charged.
A valve casing K is formed on or attached to the hydraulic cylinder D. From
this casing ports and passages lead to each end of the hydraulic cylinder D. An
exhaust port is placed midway between these two ports. An ordinary slide valve
moved by a spindle and hand lever Q regulates the admission and discharge of the
water.
The tilting gear consists of a lever M keyed to the longer trunnion B' of the
meat cylinder A projecting through the frame C, the arm of the lever M is
cylindrical in form and passes through a cylindrical block. This block / is fitted
to work easily in the central position of a differential ram L² working in
cylinders L, L¹. The lower and larger end of the ram works in a cylinder
bolted to the frame.
The cylinder L' communicates by means of a pipe n with a port N formed in the
valve casing midway between the outlet port and the port communicating with the
lower end of the main bydraulic cylinder. The cylinder L also communicates with
the water pressure in the valve casing by means of a pipe n'.
This arrangement of tilting ram Land cylinders L, L', is so placed that when
the block in the centre of the ram is pressed against the face of the lower
cylinder L', the meat cylinder A is held in a vertical position; and when the large
end of the ram L' has travelled out till the central block is stopped by the face
of the smaller cylinder L the meat cylinder A is then at a convenient angle for
filling or charging.
In order to prevent damage to the machine by tilting the meat cylinder A while
the piston G is still inside it or by bringing down the piston G while the meat
cylinder A is tilted the following arrangement is provided.
A bracket attached to the frame C carries a lever P having a long and a
short arm.
The longer arm hangs over the mouth of the meat cylinder A and the
shorter arm projects beyond the bracket O. When the valve lever Q is moved so
as to admit water to the lower end of the main hydraulic cylinder D a projection y
on the side of it comes into contact with the short arm of the guard lever Pas
soon as the port is uncovered and cannot be moved further till the piston G of the
meat cylinder A has lifted the longer arm of the guard lever P and so depresses
the shorter arm that it is clear of the projection 9 on the valve lever Q. The valve
lever can then be moved further in the same direction so as to uncover the port
communicating with the cylinder L of the tilting arrangement. The tilting
ram L' then travels upward and by means of a stud m formed on the edge of the

page_text: boss of the tilting lever M, (and which stud acts on a second projection on the
lever Q) prevents the valve lever Q from being pulled further back than will be
sufficient to move the valve so as to place the larger tilting cylinder L' in commu-
nication with the exhaust port. When the valve is brought to this position the
smaller tilting ram L travels downwards till the meat cylinder A is in a vertical
position at the same time turning the stud m out of the path of the second
projection g¹ on the valve letter Q. The valve lever Q can then be moved further
so as to uncover the port communicating with the upper end of the main hydraulic
cylinder D.
Power is supplied by a pump and accumulator but by enlarging the hydraulic
cylinder water of low pressure may be used such as is usually to be got from town
mains.
The machine may be arranged to work in a horizontal or inverted position in
which latter case the meat cylinder would be fixed and the top cover made
movable for charging.
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. A sausage filling machine the parts of which are combined and arranged to
operate substantially as described with reference to Figures 1 and 2 of the annexed
drawings.
2. A sausage filling machine the parts of which are combined and arranged to
operate substantially as described with reference to Figures 3 and 4 of the annexed
drawings.
3. In a sausage filling machine having an oscillating meat cylinder and a
pressure cylinder and piston the arrangement of tilting gear and means for
preventing the movement of the pressure piston whilst the meat cylinder is tilted
or the movement of the meat cylinder whilst the pressure piston is within it,
substantially as described.
Dated this 25th day of January 1895.