Year: 1886

page_text: I CUTHBERT GREENWOOD JOHNSON of Oakwood, Croft, near Darlington in the
County of Durham, Gentleman do hereby declare the nature of this invention
to be as follows:-
-
This invention is chiefly intended to be used in connection with the ensilage
stack press, a patent for which, No. 14113, dated October 25th 1884, has been
granted to me, and has for its object to facilitate the tightening up of the ropes or
bands, thereby communicating pressure to the crop under treatinent, but the
invention is also applicable for giving pressure in stacks of other forms and
in silos.
In carrying out my invention, I take a flattened metal bar,-provided with a
hook or eye at one end, and form on the side thereof ratchet teeth. This inetal
bar has upon it a skeleton slide, which carries upon it a pawl engaging with the
ratchet teeth. This slide also has a bearing which forms the fulcrum for a detach-
able lever. This lever has pivotted to it a pawl which engages with the ratchet
teeth upon the rack bar when the lever is fulcrammed in its bearing.
The slide is attached to the compressing band of the stack press, and the hook:
upon the rack bar is secured to the beams or blocks below, or vice versa. The
rocking of the lever works the slide along the rack bar step by step by means of
the pawl, and thereby tightens the rope, and the other pawl retains the slide in
the position it has reached.
For giving continuous pressure to the ensilage, my compressing contrivance may
be attached to weights, or weight bearing levers, or pulleys instead of to the fixed
beams above mentioned.
When my invention is used in connection with silos, any suitable number of
rack bars are secured at their ends to the bottom of the silo, and are brought up
in a vertical direction through the stuff to be pressed and the boards laid thereon.
The slides upon these rack bars are adapted to bear upon baulks of timber with
which the boarding is overlaid, and are worked down the rack bars by means of a
pawl bearing lever, in the manner already described..
By the use of this contrivance, which costs but little to make, I am enabled-
speedily to put any amount of strain upon the compressing bands or boards, and as
quickly release them from pressure, by merely disengaging the retaining pawl.
The detachability of the lever is also a great advantage.

page_text: An Improved Contrivance for Communicating Pressure to
Ensilage.
I CUTHBERT GREENWOOD JOHNSON of Oakwood, Croft near Darlington in the
County of York, Gentleman, 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:-
This invention has for its object to facilitate the application of pressure to
ensilage and other material, and is chiefly intended to be used in connection with
the ensilage stack press for which a British patent No. 14113, dated Oct 25th
1884, has been granted to me, but the contrivance will also be found useful for
giving pressure in other forms of presses.
In carrying out my invention, I take a flattened metal bar having at one end
thereof a hook or eye, and on its edge ratchet teeth. This metal bar has upon it a
skeleton slide provided with a retaining pawl engaging with the ratchet teeth.
The slide also has a bearing forming a fulcrum for a detachable lever, to tlie end
of which is pivotted a pawl to engage with the ratchet teeth of the rack bar when
the lever is fulcrummed in its bearing.
The slide is attached to the compressing bands of the stack press and the hook
upon the rack bar is secured to the beams or blocks below the stack or the mode
of attachment may be reversed. The rocking of the pawl bearing lever works the
slide along the rack bar step by step by means of the pawl, thereby giving any
required amount of tension to the compressing band or bands which tension is
maintained by means of the retaining pawl carried by the slide.
Instead of placing rack teeth upon a straight bar I may in some cases place
them on the periphery of a drum mounted in a framing provided with a retaining
pawl and a bearing in which to fulcrum a pawl bearing lever.
In this modification pressure will be communicated by winding the compressing
bands upon the drum by the rotation of the latter, which rotation is effected by
the rocking of the pawl bearing lever engaging with the rack precisely as before.
In the accompanying drawings Figs. 1 and 2 Sheet I are front and side views of
my improved tension contrivance adapted for giving pressure in the ensilage stack
press protected under the patent above named.
Figs. 3 4 and 5 are front, side, and plan views of the modification.and
Fig. 6 is a diagram shewing the best mode of applying the same to stack
presses,
.
In Sheet 1, A is a straight rack bar provided at its lower end with a hook for
attachment to the baulk or beam underlying the stack. B is the skeleton slide
upon the rack bar A and b b are wings round which the pressure giving bands
pass. b is the bearing for the pawl bearing lever D and b³ is the retaining pawl
of the slide B. d is the pawl pivotted at the end of the lever D. *
The skeleton slide B consists of a back part to which the wings b b are attached
and cheek pieces between which the retaining pawl is pivotted. The bearing for
the pawl bearing lever D consists in a pair of slots cut vertically in the cheeks

page_text: into which the ends of a fulcrum pin passing transversely through the lever may
be dropped and removed at will:
In Sheet II A is a drum provided with rack teeth on its periphery and mounted
in a framing B. The drum A preferably has upon it two rows of rack teeth a a,
and the pawl bearing lever D for engaging therewith is therefore forked near its
end and provided with two pawls d d which may be connected together so as to
engage and disengage simultaneously or one wide pawl may be used. The fulcrum
pin is in this case necessarily longer than in the former example but the ends of
the pin fall into a bearing 61 formed in the cheeks of the framing B just as before
described with reference to the slide. 6' is the retaining pawl for the drum A
pivotted to the framing B.
In using the drum arrangement in connection with the ensilage stack press
already referred to I prefer to employ single ropes passing over the top of the
stack and attached to drums arranged on either side thereof (see diagram Fig. 6)
which of course are attached to fixed beams or to blocks by means of the bolt and
nut shewn in the drawing attached to the framing B.
Although I have described my invention as applied only to my own previously
patented invention, it will be understood that it will be equally applicable for
giving pressure in other forms of press both for ensilage and for dry crop such as
hay and straw and also in silos where drum framings may be mounted upon the
boards overlying the crop and tension bands attached to the bottom of the silo
may be drawn up through or at the sides of the material to be pressed and
tightened by winding them upon the drum.
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 means for giving pressure in presses for ensilage and other material
constructed and arranged substantially as herein before described and shewn in
the drawings.
2. In presses for ensilage and other material the use in combination with a rack
bar and slide or rack drum and framing, constructed and arranged substantially as
shewn and described of a detachable pawl bearing lever, in the manner and for the
purpose set forth.