Shift knob for speed change.
Two speeds with ratio of 3.8 to 1 - Fast and 1.3 to 1 - Slow.
Patented (544,411-Lanfair)
spring chuck.
No patent markings on the chuck, however.
View of the friction plate, pressing main gear for tight fit
with a pinion.
With this release (1935) several construction changes were
introduced. These changes not only emphasized new
organization and absorption of Goodell-Pratt Co. by Millers
Falls Co., but also a trend to streamline production, reuse of
parts and attention to production costs. There were no
changes in the main frame, gear and pinion, and speed control
mechanism. The changes occurred in all three handles shape
and means of attaching them to the drill frame.
All three handles were the same as on Millers Falls Hand Drill
No. 2 of this era. It is obvious that decision was made to
cut cost of producing classic Goodell-Pratt handles and use
available parts from No 2 drill.
Main handle and ferrule are the same as on MF No. 2 drills with model
number stamped on the ferrule.
In this specific example the main handle is made of Mahogany and
ferrule is brass, nickel plated. In the photo, nickel
plating on
the ferrule did not survive and after polishing, brass is
exposed.
Wiktor Kuc
March, 2009
