IMPROVEMENTS IN THE WORKING SECTIONS OF HYDRAULIC PRESS, PACKING STILLAGE
Year: 1884

page_text: I THOMAS GARNER of the Globe Hydraulic Leather.Works Nos 57 and 59 Bloom
Street Manchester in the County of Lancaster Hydraulic Machinist do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN THE WORKING
SECTIONS OF HYDRAULIC PRESS, PACKING STILLAGE," to be as follows:
"
-
My said invention relates to what is technically known as the stillage of
hydraulic presses used to pack or compress bales of goods. The said stillage is
composed of a series of "sections" which are attached to a plate at the top of the
press so as to present a flat and even surface to the bale under treatment. The
said "sections are so constructed as that when the bale has been sufficiently
compressed and it is desired to pass the binding hoops over the top of the bale a
portion of the flat under surface of each "section" can be lifted so as to leave
channels for the passage of the hoops According to my invention the movable
plate or part in the "section" is sustained against the compressed bale by two
round, octagonal or other suitably polygonal rods or bars of about equal length
with the plate and which are held down by a locking bar formed with inclined
faces on its lower side At the times when the movable plato is down the said
inclined faces on the locking bar subtend and form about a right angle with
similarly inclined surfaces which connect the upper chamber of the "section" with
the enlarged lower chamber of the same so that the aforesaid round or polygonal
rods are confined between the inclined faces and are prevented from moving in
either a lateral or vertical direction. The movable plate or part is formed at each
end with upright lugs which carry a cross pin or antifriction roller by which it is
suspended from the back of the aforesaid locking bar. The locking bar is formed
with .curved inclines at each end which slide between the pin or roller on the
movable plate and a second fixed pin or roller carried by the "section
so that
when the locking bar is drawn forward it rises by virtue of the curved inclines
mounting on the fixed pin or roller, and thus lifts tho suspended movable plate-
The plate in rising causes the round or polygonal rods to move towards the centre
of the "section" through the wedge like action of the fixed inclined surfaces or
sides of the "section" and the movable plate is thus allowed to rise clear of the
bale sufficiently to permit of the introduction of the binding hoops. By thrusting
the locking bar back again the plate is allowed to drop to its original position.
33

page_text: I THOMAS GARNER of the Globe Hydraulic Leather Works Nos 57 and 59 Bloom
Street, Manchester in the County of Lancaster, Hydraulic Machinist do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN THE WORKING
SECTIONS OF HYDRAULIC PRESS PACKING STILLAGE" and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement and accompanying drawings :-
:-
My said Invention relates to what is technically known as the stillage of
hydraulic presses used to pack and compress bales of goods The said stillage
is composed of a series of "sections" which are attached to a plate at the top of
the press so as to present a flat and even surface to the bale under treatment.
The said sections are so constructed as that when the bale has been sufficiently
compressed and it is desired to pass the binding hoops over the top of the bale a
portion of the flat under surface of each working section can be lifted so as to leavo
channels for the passage of the hoops. According to my invention the movable
plate or part in the "section" is sustained against the compressed bale by two round,
octagonal or other suitably polygonal rods or bars of about equal length with the
plate and which are held in position by a locking bar. The said locking bar is
formed with curved inclines at each end so that when it is drawn forward it rises
by virtue of these curved inclines mounting on fixed pins or rollers so as to lift the
movable plate clear of the bale sufficiently to permit of the introduction of the
binding hoops. By thrusting the locking bar back again, the plate is allowed to
drop to its original position.
And in order that my said invention may be properly understood I will now
proceed more particularly to describe the same reference being had to the accom-
panying sheet of drawings and to the letters and figures marked thereon.
Fig 1 of the annexed drawings is a side view of one of the said stillage
"working sections," Fig: 2 being a plan of the same. The remaining figures
drawn to a larger scale are respectively transverse and longitudinal sectional views
of parts of the section. The section is composed of two side members a which are
secured together at each end by cross pieces b. which are attached to the members a
by bolts or screws c. The movable plate d is formed at each end with a double
jaw e. through which pass studs or pins f. the projecting ends of which rest in
recesses formed in the side members a so as to sustain the movable plate when in
the position shewn at Figs: 3 and 4 of the drawings. The inner sides of the
double jaws work against vertical shoulders x. formed in the members a whereby
end wise movement of the plate d. is prevented. Above the movable plate is
situated a lifting bar g. which is formed at each end with inclined faces g³ gå as
shewn in the drawing the said inclined faces resting partly on similarly inclined
portions of the movable plate d and partly on studs h' h which extend across the
-space between the side members a. and which may in some cases be provided
with anti-friction bowls. In order to enable the movable plate d to sustain the
pressure against the bale in the press without yielding or deflecting I place two

page_text: :
backing rods or bars i between the plate d and inclined shoulders formed on the
inner side of each of the side members a. The said rods or bars are equal or about
_equal in length to the movable plate d. When the lifting bar g. is down that is to
say in the position shewn at Fig: 3. its lower part onters between the rods i. and
by keeping them apart and in contact with the inclined shoulders on the inembers a.
the said rods are prevented from being displaced by the pressure on the plato d.
When it is desired to pass a binding hoop around the bale and beneath the
section the movable plate d. is lifted by pulling or pushing the lifting bar ġ. in the
direction indicated by the arrows in Fig: 4 The inclined faces g'. g. on the bar,
slide upon the studs h¹. h². and cause the bar to rise into the position shown at
Figs 5 and 6. The back of the bar in rising comes in contact with the studs ƒ.
and lifts the movable plate so as to leave a space between the bale and the plate
through which space a hoop can be passed as indicated at Fig: 6. of the drawing:
It will be seen that as the bar rises it does not immediately begin to raise the
plato d. but only after its lower part has been removed from between the rods i.
As the plate d. ascends these rods are caused by the inclined shoulders on tho
members a. to roll towards the centre of the section so as to offer no resistance to
the continued ascent of the plate d. The recess m at the foot of the inclino g¹ acts
as a stop to prevent further advance of the bar and I prefer to make the upper face
of the recess m slightly inclined in a direction opposite to the inclines g'. g². so as
to hold or lock the bar to some extent when in the position shown at Fig: 6.
Instead of round rods i as shewn in the drawing I might employ rods of any
suitable polygonal section, such a form for example as that shewn at Fig: 7. of the
drawings. The plate d. is lowered to its original position by thrusting the lifting
bar g. back again. As the said bar descends the inclined faces on its bottom edge
separate the rods i and roll them back to the position shewn at Fig: 3. The
sections are attached to a plate at the top of the press by means of the projections
or catches . which are secured to the cross pieces b. The said top plate is
indicated by the dotted line marked l. in Fig: 1. It will be understood that the
complete stillage is composed of a certain number of the herein before described
working sections" in combination with a sufficient proportion of "intermediate
sections."
"
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. The arrangement and combination of parts composing a working section of
hydraulic press packing stillage substantially as hereinbefore described and shown.
2. In stillage "working sections" the employment of a lifting bar g. formed with
inclined faces sliding upon fixed studs or other suitable abutments and arranged to
raise a movable plate & for the purpose and in the manner hereinbefore described
and shown.
3. The round or other suitably shaped rods or bars i in combination with
the aforesaid sliding lifting bar g. and movable plate d arranged and acting
substantially as described and shewn.