An Improved Weighing Machine.
Year: 1894

page_text: Date of Application, 19th June, 1894
Complete Specification Left, 16th Mar., 1895-Accepted, 4th May, 1895
An Improved Weighing Machine.
I WILLIAM STEVENS of 38 Goswell Road London E.C. Scale Manufacturer
do hereby declare the nature of this invention to be as follows:-
This invention relates to an improved weighing machine and more particularly
to a machine to be used in determining the number by their weight of small articles
such as screws nails pins coins or other articles of equal weight and the machine is
so constructed that a unit of the said articles for example a single screw shall
equal or counter-balance a definite number of the same screws for example 12 in
which case 12 serews placed in one pan of the machine will require a counter-
poise of a gross of the same screws in the other pan.
By the use of my improved machine the operation of counting is practically
dispensed with and any required number of the articles can be obtained with very
little trouble and without the necessity of the repeated weighing operations involved
by the method commonly employed at the present time.
In order that my invention may be more readily understood reference is made to
the accompanying drawing which is a diagram shewing one form of my machine
made in the proportion of 1 to 12 that is to say a machine in which a single article
or definite weight placed in the pan a will counter-poise 12 of such articles or
12 times the weight in the pan b. The figures ou the diagram indicate the
respective lengths of the lever arms.
The essential parts of my improved machine consist of a series of levers & de & f
which are fulcrummed at the points g h i j respectively mare connections or links
for transmitting the motion of one lever to another.
The arms of the lever e are of equal length the lever being of the first order
one end of said lever supporting the scale pan a and the other end being connected
to one end of the lever d by one of the links m. The lever is pivotted at the
point and is connected at the point of its length by the link m to one end of
the levere which latter is fulcrummed at i. The lever fulcrummed at ; is
connected to the lever e.
The pan b is supported upon a frame p which is carried by the levers e and fand
the movement of the fan is of course vertical. The pan a is also suitably mounted
to accomplish a like result.
It will be readily understood by those versed in the laws of mechanics that by
varying the proportions of the respective arms of the several levers any desired
balance may be obtained for example the weight necessary to be placed in the
scale pan
to counterpoise may be 20 times the weight in the pan a or any other
desired proportion may be obtained and I desire it to be understood that I do not
wish it to be understood that I do not wish to confine my invention to any definite
proportions as the same may be varied to suit various requirements of the uses to
which my invention is applicable without departing from the spirit of my
invention.
Dated this 19th day of June 1894.
HENRY W. MASTERS,
Agent for Applicant.

page_text: I WILLIAM STEVENS of 38 Goswell Road London E.C. Scale Manufacturer 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 relates to an improved weighing machine and more particularly
to a machine to be used in determining the number by their weight of small articles
such as screws, nails, pins, coins or other articles of equal weight and the machine
is so constructed that a unit of the said articles (for example n single screw) shall
equal or counterbalance a definite number of the same screws (for example 12) in
which case 12 screws placed in one pan of the machine will require a counterpoise
of a gross of the same screws in the other pan.
By the use of my improved machine the operation of counting is practically
dispensed with and any required number of the articles can be obtained with very
little trouble and without the necessity of the repeated weighing operations
involved by the method commonly employed at the present time.
In order that my invention and the construction of the machine may be readily
understood reference is made to the accompanying drawing which shews a machine
made in the proportion of 1 to 12 that is to say a machine in which a single
article or definite weight placed in the pan a will counterpoise 12 of such articles
or 12 times the weight in the pan. (In the diagram lodged with my
Provisional Specification the figures represent and indicate the relative proportions
of the lever arms.)
The essential parts of my improved machine consist of a series of levers c, d, e,
which are fulcrumined at the points g h i j respectively m are connections or
links for transmitting the motion of one lever to another.
The arms of the lever care of equal length the lever being of the first order
one end of said lever supporting the scale pan a and the other end being connected
to the lever by one of the links m. The said leverdis pivotted or fulcrumme
at the point and is connected at the point 4 of its length by the link in to one
end of the lever which latter is fulcrummed at the point. The lever /
fulcrummed at ; is also connected as shewn to the lever e.
The pan is supported by a frame p which is carried by the leverse and fand
the movement of the pan is vertical. The pan is also suitably mounted to
accomplish a like result.
The leverse and are suspended by links a from the points and respectively
and the fulcrums of the several levers are supported directly or indirectly by
standards which are attached to or fashioned in one with the bed of the machine.
In the drawing the standards on the side of the machine nearest to the observer
are removed and partions of the levers are shewn broken away to facilitate
illustration.
It will be readily understood by those versed in the laws of mechanics that by
varying the proportions of the respective arms of the several levers any desired
balance may be obtained for example the weight necessary to be placed in the
scale pan 6 to counterpoise that in the pan a may be 20 times the said weight a or
any desired proportion may be obtained and I desire it to be understood that I do
not wish to confine myself to my definite proportions as the same may be varied
without departing from the spirit of my invention.

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
An improved weighing machine constructed arranged and operating substan-
tially as and for the purpose described and illustrated in the accompanying
drawing.
HENRY W. MASTERS,
Agent for Applicant.