Scripto | Page Revision | Transcription

tends to get into a mess and jam [?],
owing to the integral friction of the
parts. The ordinary opinion is that
by having a strain on a (pl. 1. 1. ) [?] in
preference to c, a bites c against the
two parts of the bow [?] loop. As a given
strain can produce only a given friction,
such friction force as a exerts on c in
this manner that d [?] must be subtracted
from that availible tightening gripping
d & b together. On the other hand with
the same strain on c more is availible
for this gripping process an it is as
essential to the security