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Tape Ruler - What kind is this

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Forum topic by hjt posted 07-03-2015 10:45 PM 867 views 0 times favorited 4 replies Add to Favorites Watch
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hjt

822 posts in 2603 days


07-03-2015 10:45 PM

Topic tags/keywords: tape measure

Several years ago, when my Dad died, I inherited much of his stuff – http://lumberjocks.com/hjt/workshop. Part of the collect was this 100’ tape ruler. But instead of marked off at 1/16, 1/2, 3/8… it uses numbers 1,2,3… and every 10 numbers = 1 foot.

So for example it would read:3’ 1, 3’ 2, 3’ 3… 3’ 9, 4’ 0.

What are those silly 1,2,3 numbers representing??

-- Harold


4 replies so far

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MattB43

12 posts in 917 days


#1 posted 07-03-2015 10:57 PM

It’s a survey/engineering tape, measures in 10th’s of a foot. So you can note stuff as 6.7’ or whatever. Not sure what other uses it has, but in land surveying/civil engineering, things are measured in feet and 10ths of feet, rather than feet and inches.

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hjt

822 posts in 2603 days


#2 posted 07-04-2015 02:09 PM

Well, that answers that! Thanks Matt.

-- Harold

View CharlieM1958's profile

CharlieM1958

16243 posts in 3684 days


#3 posted 07-04-2015 02:38 PM

Yep, my dad was a civil engineer and surveyor, so I knew the answer right away. Matt beat me to it.

-- Charlie M. "Woodworking - patience = firewood"

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dhaas

6 posts in 756 days


#4 posted 07-05-2015 03:28 AM

Agree that it’s for surveying, but it’s not a tape. It’s called a chain. When I worked as a helper to a surveyor in 1957 on what is now I-76, west of Akron, Ohio, you not only had to measure accurately, but air temperature had to be taken into account as it affects the length of the “chain.” No calculators either.

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