mentioned previously, this tool was only one part of a two-part submission
for letters patent on a chisel and a chisel gauge. The second
was certainly based on the foresight that a new tool was needed
to work with the one described in the first patent. That the
two submissions were done on the same day can be taken as a
sign that Mr. Binkerd had seen the obvious need for a guide
system to remove the waste after it had been marked out. In
this case, the guide merely slipped over a chisel (not supplied)
to regulate the depth of cut. The patent illustrations have
been included for clarification, given the peculiarity of two
patents being granted on the same day and with consecutive numbers.
This makes misidentification possible, if not probable.
||Gage chisel for cutting hinge recesses
At this time, there are no examples of the second gauge in the
Lee Valley collection.