Photo Index - Boynton & Plummer - Post Drill

Machinery Photo Index

Manufactured/Badged by:
Boynton & Plummer
Worcester, MA; Chester, VT

Machine Specifications
Machine Class:	Wood Working Machinery
Machine Type:	Drill Press
Machine Size:	19"
Submitted By:	Steve Baum

Machine Specifications
Description/Model:	Post Drill
Date of Manufacturer:	1892-1904
Serial Number:
Last Updated	11/8/2010 5:14:56 PM

Comments:

I picked this carcass up recently. It had been modified and was set up as a 1" punch. The chuck which may have contained the maker's name was machined inside to a 1" bore and outside for who knows why. Quill travel is 3 1/2" with 19 turns of the top feed wheel. That wheel has 110 teeth and although broken it has been brazed and looks to be well done and functional. There are 28 teeth and 51 teeth on the two remaining gears. The gears are nicely machined, not only on the teeth, but the faces also. It weighs 160 lbs. as pictured. Overall length is 56". There are many parts that are missing but I felt this was a drill worth studying. This drill is a dead ringer for the one diagrammed in the 1892 patent, number 480907. This drill contains 8 Babbitt bearings which all look to be fine shape. I have seen a 1904 advertisement that states "All Boynton & Plummer drills have forged Steel Spindles" "Spindle bearings bored and reamed from solid stock" "Not Babbitted". So this should put the manufacture date between 1892 and 1904.

Photo 1:

Comments: Side view of head
Source: Me

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Photo 2:

Comments: Top front view.
Source: Me

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Photo 3:

Comments: Bottom front view .
Source: Me

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Photo 4:

Comments: Bottom side view.
Source: Me

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Photo 5:

Comments: Detail showing patented (#480907) slot.
Source: Me

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