d, d′ are two pivots of the scale beams.
d is the loop on which the pivot d works.
e is a joint in the loop.
d′, e′, and f show the loop and connection.
c is the sliding table which has the stop c′, and is adjustable for different lengths of knives.
a a is a knife in position for balancing endwise.
g is a slotted piece, and is held to the scale beam by the screw v. The slot in g is shown at g′, and limits the travel of the scale beams.
h is an angular piece fastened to the lower scale beam, and receives the screw j.
i is a small weight used for fine adjustment.
o, o are weights which slide along the scale beam k k, and are held in place by the thumb screws p, p.