Falls No.1, 3 & 5 eggbeater drills
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No.5 eggbeater drill;
Type 6 - The first
official No.5 model, this type has a newly designed frame with a machined
spindle housing and a separate axle for the idler pinion, a much more efficient
design than the iron-framed No.3 Type 4. The rosewood main handle
has a narrow flare. The only markings are the patent date and company
name on the no-springs, 3-jaw chuck; the tapered crank is unmarked.
Note the pronounced triangular shape of the pinion teeth, indicative of
the larger than usual pressure angle used to strength the pinion teeth.
This change was made possibly because of the use of the idler pinion to
counter the tendency of the main gear to deflect away from the drive pinion.