What is this? - Page 123

Lamplighter · 12-05-2011, 09:52 AM

Here are two measuring tools I find absolutely fascinating.

The first image is the "old" version,
the second and third images are the "new" versions.
The question is, what are they measuring ?
.

glatt · 12-05-2011, 09:57 AM

Cool! I've never seen anything like that.

Is it some sort of estimating device for estimating the board feet of lumber in a tree?

Lamplighter · 12-05-2011, 10:02 AM

Quote:

Originally Posted by glatt

Cool! I've never seen anything like that.

Is it some sort of estimating device for estimating the board feet of lumber in a tree?

Yes, but going beyond that

glatt · 12-05-2011, 10:08 AM

It somehow measures basal area in a forest? How crowded the forest is?
[/Google searching]

infinite monkey · 12-05-2011, 10:11 AM

I'm intrigued. Not finding anything by googling. Let's see if glatt's mad googling skillz comes up with it.

Spexxvet · 12-05-2011, 10:13 AM

The bottom two are prisms. The deviation is a function of the distance from the object.

glatt · 12-05-2011, 10:13 AM

Basal area gauge. But I don't really understand completely how it works. And especially don't understand the modern ones.

Spexxvet · 12-05-2011, 10:14 AM

http://oregonstate.edu/instruct/bot4.../HTM-trees.htm

glatt · 12-05-2011, 10:17 AM

OK, so I guess you count the number of fat trees in the woods. And you use the metal gauge to see how fat the trees are so you know whether to count them or not based on how much each tree fills the window. I'm guessing the prisms work by either completely splitting the image of the trunk if the tree is too small to be counted, or else leaving a little bit attached if the tree is fat enough to be counted.

infinite monkey · 12-05-2011, 10:19 AM

Interesting! I learned something new today.

Lamplighter · 12-05-2011, 10:31 AM

The end goal is to determine the board feet of lumber in a given plot of land.
The timber cruiser stands at the center of a plot of trees,

The prism (wedge) gauge is probably easier to understand.
It basically is used to count the trees inside and outside a certain distance.

By looking thru the prism, and rotating 360 degrees,
the cruiser counts the number of trees inside (pic 2)
and outside (pic 3).
By measuring the diameter of the trees inside the plot,
the timber inventory (total number of board ft of the plot) can be calculated.
This "sample" from the center of the plot can represent a much larger area.

The width-steps of the other gauge (pic 1) select
for trees of a maximum given diameter.
The chain is used to fix the distance from the gauge to the eye.

Both of Glatt's tools above and the old gauge here show that our
forefathers were not dummies.

footfootfoot · 12-05-2011, 10:40 AM

I'm beginning to think that Glatt has somehow eaten Clodfobble's brain and thereby derived its powers.

This is like a creepy "One Step Beyond" episode

infinite monkey · 12-05-2011, 10:41 AM

Maybe you just forgot how awesome glatt is in his own right.

classicman · 12-05-2011, 10:44 AM

OK time for a relatively easy one ...
Glatt you are penalized one hour from responding to even things up.
The rest of you .... GO!

Spexxvet · 12-05-2011, 10:46 AM

Your glottis?

12-05-2011, 09:52 AM	#1831
Lamplighter Person who doesn't update the user title Join Date: Jun 2010 Location: Bottom lands of the Missoula floods Posts: 6,402	Here are two measuring tools I find absolutely fascinating. The first image is the "old" version, the second and third images are the "new" versions. The question is, what are they measuring ? . Attached Images

12-05-2011, 10:13 AM	#1836
Spexxvet Makes some feel uncomfortable Join Date: Dec 2005 Posts: 10,346	The bottom two are prisms. The deviation is a function of the distance from the object. __________________ "I'm certainly free, nay compelled, to spread the gospel of Spex. " - xoxoxoBruce

12-05-2011, 10:14 AM	#1838
Spexxvet Makes some feel uncomfortable Join Date: Dec 2005 Posts: 10,346	http://oregonstate.edu/instruct/bot4.../HTM-trees.htm __________________ "I'm certainly free, nay compelled, to spread the gospel of Spex. " - xoxoxoBruce

12-05-2011, 10:40 AM	#1842
footfootfoot To shreds, you say? Join Date: Aug 2004 Location: in the house and on the street-how many, many feet we meet! Posts: 18,449	I'm beginning to think that Glatt has somehow eaten Clodfobble's brain and thereby derived its powers. This is like a creepy "One Step Beyond" episode __________________ The internet is a hateful stew of vomit you can never take completely seriously. - Her Fobs

12-05-2011, 10:44 AM	#1844
classicman barely disguised asshole, keeper of all that is holy. Join Date: Nov 2007 Posts: 23,401	OK time for a relatively easy one ... Glatt you are penalized one hour from responding to even things up. The rest of you .... GO! Attached Images __________________ "like strapping a pillow on a bull in a china shop" Bullitt

12-05-2011, 09:57 AM	#1832
glatt ™ Join Date: Jul 2003 Location: Arlington, VA Posts: 27,717	Cool! I've never seen anything like that. Is it some sort of estimating device for estimating the board feet of lumber in a tree?

12-05-2011, 10:08 AM	#1834
glatt ™ Join Date: Jul 2003 Location: Arlington, VA Posts: 27,717	It somehow measures basal area in a forest? How crowded the forest is? [/Google searching]

12-05-2011, 10:11 AM	#1835
infinite monkey Person who doesn't update the user title Join Date: Mar 2011 Posts: 13,002	I'm intrigued. Not finding anything by googling. Let's see if glatt's mad googling skillz comes up with it.

12-05-2011, 10:13 AM	#1837
glatt ™ Join Date: Jul 2003 Location: Arlington, VA Posts: 27,717	Basal area gauge. But I don't really understand completely how it works. And especially don't understand the modern ones.

12-05-2011, 10:17 AM	#1839
glatt ™ Join Date: Jul 2003 Location: Arlington, VA Posts: 27,717	OK, so I guess you count the number of fat trees in the woods. And you use the metal gauge to see how fat the trees are so you know whether to count them or not based on how much each tree fills the window. I'm guessing the prisms work by either completely splitting the image of the trunk if the tree is too small to be counted, or else leaving a little bit attached if the tree is fat enough to be counted.

12-05-2011, 10:19 AM	#1840
infinite monkey Person who doesn't update the user title Join Date: Mar 2011 Posts: 13,002	Interesting! I learned something new today.

12-05-2011, 10:31 AM	#1841
Lamplighter Person who doesn't update the user title Join Date: Jun 2010 Location: Bottom lands of the Missoula floods Posts: 6,402	The end goal is to determine the board feet of lumber in a given plot of land. The timber cruiser stands at the center of a plot of trees, The prism (wedge) gauge is probably easier to understand. It basically is used to count the trees inside and outside a certain distance. By looking thru the prism, and rotating 360 degrees, the cruiser counts the number of trees inside (pic 2) and outside (pic 3). By measuring the diameter of the trees inside the plot, the timber inventory (total number of board ft of the plot) can be calculated. This "sample" from the center of the plot can represent a much larger area. The width-steps of the other gauge (pic 1) select for trees of a maximum given diameter. The chain is used to fix the distance from the gauge to the eye. Both of Glatt's tools above and the old gauge here show that our forefathers were not dummies.

12-05-2011, 10:41 AM	#1843
infinite monkey Person who doesn't update the user title Join Date: Mar 2011 Posts: 13,002	Maybe you just forgot how awesome glatt is in his own right.

12-05-2011, 10:46 AM	#1845
Spexxvet Makes some feel uncomfortable Join Date: Dec 2005 Posts: 10,346	Your glottis? __________________ "I'm certainly free, nay compelled, to spread the gospel of Spex. " - xoxoxoBruce

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