Imperial translation needed

[BelgiqueB]

My metric mind can't make sense of the dimension given on an old hand drawn imperial plan, need to know the wall thickness of the 48" pile but am lost to what is written down. Anybody wiser than me can help me?

Thanks in advance.

 

[ajlelectronics]

My metric mind can't make sense of the dimension given on an old hand drawn imperial plan, need to know the wall thickness of the 48" pile but am lost to what is written down. Anybody wiser than me can help me?

Thanks in advance.

View attachment 482296

View attachment 482297

2ft 4in

 

[Onoff]

48" diameter

2 ¼" Wall Thickness

Is my guess.

Or is it 2 foot, 4 inches...... ?

 

[oldbikedavey]

What's the drawing actually of ?
If it's brickwork, it won't be two and a quarter inches thick......

 

[m_c]

Is that a single apostrophe after the 48?

' = short hand for foot
" = short hand for inch

So assuming WT means wall thickness, it's 2 foot 4 inches.

 

[oldbikedavey]

If its 2' 4" wall thickness, then the 48" is certainly inside diameter......

 

[cheb]

The world's largest haemorrhoid?

 

[addjunkie]

Is that a single apostrophe after the 48?

' = short hand for foot
" = short hand for inch

So assuming WT means wall thickness, it's 2 foot 4 inches.

48 inch diameter in the text there fora wall thickness of 2 foot 4 wouldnt work, it would be solid as 2 foot 4 is 28 inches, opposite sides of the tube would total more than the outside diameter.

 

[RichardM]

Maybe 48 ft diameter with a wall thickness of 2ft 4 inches (28 inches).
14,630 mm diameter, 711 mm wall thickness.

 

[Agroshield]

So assuming WT means wall thickness...

It has been _assumed_ that 48 refers to inches, when no units are actually shown*. That assumption has then been used to imply that your own assumption is incorrect.

People are qustioning the 2'4" as a wall thickness but not questioning the (assumed) inches associated with the 48.

* in the lower of the two scans, there is a slight smudge adjacent the 8 of 48, which might be a foot/feet indicator, but could also be a scan artifact, so is not conclusive.

The context and an overall view of the whole drawing would solve the issue.

 

[Agroshield]

48" diameter

Please highlight in red pen where you see any inches associated with the 48.

 

[addjunkie]

Please highlight in red pen where you see any inches associated with the 48.

The inch abbreviation is used-in the text

 

[ajlelectronics]

Is that a single apostrophe after the 48?

' = short hand for foot
" = short hand for inch

So assuming WT means wall thickness, it's 2 foot 4 inches.

Quite and the circle with a line through is the symbol for diameter. I thought these were common knowledge, especially with the 'mature' membership here.

It is interesting that no units are displayed for the diameter, so only an assumption can be made about that, before seeing the job or context.

 

[Seadog]

As @Onoff says, it's probably 2 1/4".
That would make sense if it's a steel pile.

 

[Pete.]

Need some context. 48 feet diameter would be one heck of a 'pile' more like the foundation for a castle turret, windmill or something.

Could be 48 foot diameter and 2 foot 4 inches wall or 48 inches diameter and 2.4 inches wall for steel or iron piles. The problem is if it was steel or iron it would be HEAVY so it would be sectional most likely.

@BelgiqueB what exactly is the drawing of?

 

[voipio]

Could the upper 48 be referring to a centre line? What follows the 48 looks like a C and L superimposed.

Showing more of the drawing might help.

 

[Agroshield]

As Onoff says, it's probably 2 1/4".

Please highlight in blue pen on the original image posted by BelgiqueB where a person could reasonably see something approaching 1/4".

Bear in mind the original is an engineering drawing and draftspeople of the day would take pride in their lettering - as a lack of clarity would lead to expensive mistakes.

 

[Agroshield]

The inch abbreviation is used-in the text

Yes, by the person who has inferred it from the original image, written it down and somehow caused mass hypnosis in this thread.

You can look at the image yourself and there is no dimensional abbreviation following the number 8.

 

[Pete.]

Those images have been cleaned up. I do it with old manuals sometimes and it's easy to lose the fainter punctuation marks. The grubbier the pages, the worse it is.

 

[ajlelectronics]

Something has a diameter of 48 units. It has a wall thickness of 2'4" so the units are not going to be inches. It appears to have an apostrophe after the 48 which suggests feet. A 48' diameter wall with a thickness of 2'4" makes sense, ratio wise.