IMPROVEMENTS IN AND RELATING TO WEIGHING MACHINES
Year: 1877

page_text: LETTERS PATENT to John Cheshire, of Liverpool, in the County of Lancaster,
for the Invention of "IMPROVEMENTS IN AND RELATING TO WEIGHING
MACHINES."
Sealed the 6th October 1877, and dated the 12th April 1877.
PROVISIONAL SPECIFICATION left by the said John Cheshire at the Office of
the Commissioners of Patents on the 12th April 1877,
JOHN CHESHIRE, of Liverpool, in the County of Lancaster.
AND RELATING TO WEIGHING MACHINES."
IMPROVEMENTS IN
In the balance scale as ordinarily used on dock quays and elsewhere, it is
necessary to erect a substantial tripod to carry the relieving lever. Now my In-
vention is designed to obviate the necessity of this tripod, or any extraneous
support whatever for the said relieving lever. Scale beans, too, are sometimes
wanted to be moved from open places to those under cover, and vice versû. It is
therefore advantageous to so design the gallows that it can be either suspended from
above or sustained on a pedestal or upright below; my Invention also accomplishes
this object.
1st. suspend the relieving lever or catch weight from one arm of the balance at
the point to which the scale is itself suspended, thus making it a part of the
balance. To do this I suspend the scale from the catch lever at a point (looking
from the handle of the lever) just beyond the point of suspension of the catch lever.
The distance from the point of suspension can be regulated, if desired, by having
two or more holes, in any one of which the scale suspension pin can be inserted.
The 2nd part of my Invention consists in constructing the gallows with a point
of suspension above the block, and also with projecting shanks below, capable of
being cottered, bolted, socketted, or otherwise firmly secured to a pedestal or
upright.
With these two improvements the balance is very handy, and the general
arrangement of the balance (which I propose to claim) exceedingly simple, useful,
and compact.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Cheshire in the Great Seal Patent Office on the 12th October
1877.
JOHN CHESHIRE, of Liverpool, in the County of Lancaster. "IMPROVEMENTS IN
AND RELATING TO WEIGHING MACHINES."
In the balance scale as ordinarily used on dock quays and elsewhere, it is neces-
sary to erect a substantial tripod from which to suspend the beam, with a special
arrangement to carry the relieving lever. Now my Invention is designed to obviate
the necessity of this tripod, or any extraneous support whatever for the said
relieving lever. Scale beams, too, are sometimes wanted to be moved from open places
to those under cover, and vice versa. It is therefore advantageous to so design the
gallows that it can be either suspended from above or sustained on a pedestal or
upright below; my Invention also accomplishes this object.
1st. I suspend the relieving lever or catch weight from one arm of the balance at
the point to which the scale is itself suspended, thus making it a part of the
balance. To do this I suspend the scale from the catch lever at a point (looking
from the handle of the lever) just beyond the point of suspension of the catch lever.
This is shown in Figure 1, in which A is the relieving lever; B, its point of sus-
pension; E, point of suspension of scale; D, handle. The distance from the point
of suspension can be regulated, if desired, by having two or more holes, as shown
at F, in any one of which the scale suspension pin C can be inserted.
To bring the scale off the ground, pull down the lever A by means of its handle
D till the hook G catches in the chain, as seen in Figure 2.
The second part of my Invention consists in constructing the gallows E with a
point of suspension above the block, and also with projecting shanks H below,
capable of being cottered, bolted, socketted, or otherwise firmnly secured to a pedestal
or upright.
In the Drawing Figure 1 shows the beam supported on a pedestal; Figure 2, the
same beam and gallows supported by a hook and chain.
Having now described my Invention, and the best inode known to me of carrying
it into effect, I wish it to be understood that what I believe to be new and desire
to claim under the herein-before in part recited Letters Patent is,-
1st. Suspending the scale on a point of the catch lever, or its mechanical equiva-
lent, at a distance from the point of suspension of said lever, or its mechanical
equivalent, in such manner that the scale 'can be raised and lowered on to the
ground by a lever or mechanism forming part of the balance instead of by a lever
from an extraneous support.
2nd. Arranging the suspension of a weighing scale in such manner that by lever,
or its mechanical equivalent, in the mechanism suspended from the beam the dis-
tance between the point of suspension in the beam and the scale can be altered
without affecting the weight.
3rd. The arrangement of mechanism for raising or lowering the scale, substan-
tially as and for the purposes described.
4th. The special arrangement of mechanism for supporting the beam either
from a hook or chain above or in a pedestal below, substantially as described.
In witness whereof, I, the said John Cheshire, have hereunto set my hand
and seal, this Tenth day of October, 1877.
Witness,
WILLIAM P. THOMPSON,
British & International Patent Agent,
6, Lord Street,
Liverpool.
JOHN CHESHIRE. (L.S.)