Improvements in Lever Weighing Machines for Weighing Coal, Hay, Straw, and the like.
Year: 1894

page_text: Date of Application, 5th May, 1894-Accepted, 11th Aug., 1894
COMPLETE SPECIFICATION.
Improvements in Lever Weighing Machines for Weighing Coal,
Hay, Straw, and the like.
I JAMES HERBERT SOWERBY, of 32 Trinity Street, Gainsborough, in the
County of Lincolnshire Weighing Machine Maker, 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 :-
The object of my invention is to construct lever weighing machines for weighing
coals, hay, straw and the like, which shall meet all the requirements of the Board
of Trade but at the same time dispense with some of the weights at present
employed in connection with such machines, still allowing large or small quantities
of goods to be weighed with as great accuracy.
DESCRIPTION OF DRAWINGS.
Fig. 1. shews side view of weighing machine with my improvements applied.
Fig. 2. shews front view of Fig. 1.
Fig. 3. shews plan of sliding weight on lever or arm.
I construct my machine with the ordinary lever or arm A preferably enlarged at
one end B, and pivotted or suspended in the usual manner at C, the goods pan being
preferably suspended or hung as heretofore at D.
Upon the lever or arm A I employ a sliding counterpoise weight E, such weight
being a part of the machine, and by the employment of which goods can be weighed
with great accuracy, although certain of the loose weights to hang at the end of
the lever for weighing purposes can be dispensed with.
The said lever or arm A is divided into suitable distances, to represent preferably
pounds and ounces, and is preferably of such a length as to represent seven pounds,
but it may be lengthened and marked off to represent 8, 9, or more pounds if desired.
In place of the small loose weights usually employed in lever weighing machines,
I employ only weights registering 7 lbs., 14 lbs., 28 lbs., cwt., and 1 cwt., upon
sliding the weight E upon the lever or arm A any intermediate weight up to 7 lbs.
can be ascertained. The centres of the machine are unequal, that is the distance
from the pivot or centre C to the pivot or centre D is less than the distance from
the centre D to the centre on which the hook F, at the end of the arm hangs, the
distance from D to F being eight times the distance from C to D, therefore any
weight hung upon the hook F at the end of the lever A will balance eight times its
weight on the goods pan hung at D.
For instance a 1 lb. weight can be hung on the end of the lever by means of the
hook F, and this alone represents 7 lbs., the sliding weight can be moved on the
lever to the mark representing 1 lb., this added to the loose 1 lb. weight gives 8 lbs.,
and so on, the sliding weight when moved to the mark representing 7 lbs., on the
lever, gives (with the loose 1 lb. weight) 14 lbs. so that all intermediate weights up
to 7 lbs. can be obtained by means of the said sliding weight, thus dispensing with
small loose weights, but at the same time allowing the correct weight in cwts., qrs.,
lbs. or ounces to be easily obtained.
For hanging or suspending the machine 1 employ a suspender with the top
preferably a flat bar G in the shape of a T for fixing to beams or the like by staples,
the lower part of the suspender consists of a flat bar H, these two bars lie flat
against each other; one of them may have its edges turned over to form a groove J
for the other to work in, thus keeping them straight, holes being formed in each
through which a pin is passed. The lower bar H has a hook K (for hanging the
Semi

page_text: machine to) extending away in lever form L, the head being bent down forming a
hole or eye M through which the lever of the machine passes, this eye preventing
the machine from tilting up if too much weight is on it.
My improved construction of machine can be made in small sizes for weighing
butter, sugar, and the like.
By sliding the weight E along the lever or arm A any required weight according
to the size of the machine can be easily ascertained without the necessity of
employing a number of loose weights.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what 1
claim is :-
:-
1. In lever weighing machines the combination of a sliding suspender or
hanger G. H. lever or arm A, and counterpoise weight E, operated in the manner
substantially as shown and described.
Dated this Fourth day of May 1894.
JOHN E. WALSH,
Saville Street, Hull, and Crossley Street, Halifax,
Patent Agent for the Applicant.