ghb624 wrote in news:1181842129.909340.218110
RPM measurement tool. My father used to have one to check the speed of the
sawmill blade. I think it had a rubber tip on the end that he held up
against the spinning blade to take a reading compared to a time period like
a minute or so.
On Thu, 14 Jun 2007 17:28:49 -0000, with neither quill nor qualm,
ghb624 quickly quoth:
That, sir, is your non-digital tachometer. You hold the round end
against a rotating shaft end for a set amount of time and it measures
- Metaphors Be With You -
I have one in a red top box myself. Speed measuring device.
One is to hold it in the hand and keep the thumb over the area where the
bump is. Count bumps. Watch the watch. Bumps per minute.....
Simple. Used on many machines to measure shafts and wheels and saw
It looks like a Model no. 107 - in my catalog #29 page 331
Looks like a '97 or 98 catalog I got from Starrett (and price list) :-)
Optional press on point(cone) flat and the large wheel that
divides the shaft counter by 2 for proper measurements.
It also counts rev's - simple number of turns. Normally 5,000 on this one.
Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
TSRA, Life; NRA LOH & Endowment Member, Golden Eagle, Patriot"s Medal.
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member.