Author Topic: Just had to buy this! (Read 4221 times)

Mark(The Miser)UK · « **on:** September 14, 2006, 02:32:19 am »

Just picked this up from a car boot [trunk!] sale $2.
I guess this is off an aircraft. Must have fallen off whilst flying over the UK

60cm h2o FSD
0.85psi equiv....
1/4 oz per division per sq inch

Made in a place called Marshalltown Iowa
What can I use it for? :?
Something on the car?
Wind speed?
Seal end and make a barometer?
Make a flow meter from scratch? pitot tube thingy?
Send your answers to this thread

Edit: Oh yes it's about 2 1/4" diameter :shock:

burn_your_money · « **Reply #1 on:** September 14, 2006, 04:40:21 am »

You buy like I do. Purchase then ask what it is :lol:

Mark(The Miser)UK · « **Reply #2 on:** September 14, 2006, 04:49:08 am »

Quote from: burn_your_money

You buy like I do. Purchase then ask what it is :lol:

[/size]
Absolutely... Order of preference is
Books on just about any subject except soccer, tools, and Quantae [ums] :oops:

QuickTD · « **Reply #3 on:** September 14, 2006, 05:37:25 am »

Air filter restriction indicator?

Mark(The Miser)UK · « **Reply #4 on:** September 14, 2006, 10:46:23 am »

I'm amazed how many have tripped up over cm water not being pressure :wink:
What is a cm gauge doing being made in Iowa? Were they selling stuff to the English speaking French?
Remember its 0.85psi FSD

QuickTD · « **Reply #5 on:** September 14, 2006, 03:39:00 pm »

So is it cm of water vacuum or cm of water pressure? Could go either way. Air filter restriction is generally measured in inches of water vacuum. Natural gas pressure is also expressed in inches of water, but it's pressure.

Mark(The Miser)UK · « **Reply #6 on:** September 14, 2006, 04:12:35 pm »

It's pressure; andalthough it looks aircraftish I'm finding that Marshalltown is known for its life support incubators and some have alarms set to 7 to 13 cm of water.
So it'll have to be Quantum cabin pressure :mrgreen:

QuickTD · « **Reply #7 on:** September 14, 2006, 09:01:12 pm »

Might be suitable for ram air system testing. Or like you had mentioned previously, fit a pitot and change the scale to read in mach numbers, might alarm the odd passenger...

"Aircraftish" usually means "mounts with 4 screws around the face". Thats more of a lab instrument you've got there.

Marshalltown is also famous for drywall/cement trowels and knives, can't imagine it's the same company, though they do make a nice trowel...