bc.gold 3,403 #1 Posted June 16, 2020 (edited) Dump find, old Dumore electric drill, to reverse rotation you had to switch the leads. Edited June 16, 2020 by bcgold 2 Share this post Link to post Share on other sites
bc.gold 3,403 #2 Posted June 16, 2020 (edited) Should have read the manufacture tag before plugging the drill into 120 volts AC, fortunately it was quickly disconnected before any real damage. The farmer who owned this Dumore probably had a 12 volt DC Delco light plant, I know of one sitting in the basement of an old farm house not far from my home. Edited June 16, 2020 by bcgold 1 1 Share this post Link to post Share on other sites
bc.gold 3,403 #3 Posted June 17, 2020 The Dumore reversible drill, key less chuck running on 12 volts DC at 200 rpm. No arcs and sparks. Share this post Link to post Share on other sites
bc.gold 3,403 #4 Posted June 17, 2020 The more i think about the Dumore, it may have been intended as a multi purpose electric motor that could be used on say a meat grinder or a butter churn. I know for a fact there was a high speed 12 volt DC motor to convert the treadle sewing machine to electric. Share this post Link to post Share on other sites
bc.gold 3,403 #5 Posted June 17, 2020 (edited) When I had my metal lathe purchased a Dumore tool post grinder which came with two mandrels to do both external and internal grinding. A post grinder is the ideal tool for a precision refinish on a hard surface. Especially useful when repairing hydraulic pump shafts. Edited June 17, 2020 by bcgold 1 Share this post Link to post Share on other sites
Stepney 2,325 #6 Posted June 17, 2020 The old Delcos were mostly 32v DC. Though it was usually provided by a bank of batteries. So the 12v thought is rational. I've seen those Dumores before. A few are at the engine shows sometimes. 1 Share this post Link to post Share on other sites
Tractorhead 9,064 #7 Posted June 17, 2020 Nice motor, luckily it survived the short time 120AC. That is real solid quality. 👍 1 Share this post Link to post Share on other sites
Lee1977 6,645 #8 Posted June 17, 2020 21 hours ago, bcgold said: Should have read the manufacture tag before plugging the drill into 120 volts AC, fortunately it was quickly disconnected before any real damage. The farmer who owned this Dumore probably had a 12 volt DC Delco light plant, I know of one sitting in the basement of an old farm house not far from my home. The extra power was leaking out, might need a blowout patch before you loose the smoke. 1 Share this post Link to post Share on other sites
