Tool Talk

What's-It Forum => What's-It Forum => Topic started by: Papaw on October 14, 2019, 08:20:24 PM

Title: Square
Post by: Papaw on October 14, 2019, 08:20:24 PM
An acquaintance of mine has this square and is seeking info. I haven't seen it myself, but he says it has no maker's marks. It has holes on the arm that look like they are for a carpenter's pencil. Perhaps for layout, or marking an arc or circle.
Title: Re: Square
Post by: geneg on October 15, 2019, 05:49:48 AM
Seldom if ever find maker's marks on one of these.   Very common carpenter's tool & predecessor to speed squares.  The diamond shaped holes are for a carpenter pencil.  Never used one for an arc myself, but marked rip or offset lines on boards.   
Title: Re: Square
Post by: wrenchguy on October 15, 2019, 06:35:44 AM
Mortise/tendon layout 4 post/beam construction.
Title: Re: Square
Post by: Papaw on October 15, 2019, 11:48:54 AM
Got a quick answer from Kirk Eppler  on Facebook- Seen in a Southington Hardware catalog from 1930. Called a scribing square.

 
Title: Re: Square
Post by: jdjax on October 15, 2019, 12:44:57 PM
I used to have that same type of square. I know it had numbers stamped on it for the holes I think they were whole numbers with fractions at every hole, so if you put a pencil in the 1"1/8" hole you could scribe a line 1"1/8" from the edge of the board.
Mine did not have a makers mark either but it was very handy to use and surprisingly still square being made out of lightweight steel.
Title: Re: Square
Post by: jdjax on October 15, 2019, 01:01:39 PM
It is hard to tell from your picture but it looks like the end of the rule part of the square has a radius on one side and mine had that as well. I thought some knuckle head had stuck it into a grinder.
Title: Re: Square
Post by: Papaw on October 15, 2019, 01:25:04 PM
This is the picture of the page the square is on. I don't see the radius on one side.
Title: Re: Square
Post by: lptools on October 15, 2019, 01:34:16 PM
I can see drawing a circle, using any slot, or a spot in the oval on the head as your center point. Place a pencil at the desired radius, whether it be a slot, or the edge of the square. Not the most convenient way to draw a circle, but would work in a pinch. Regards, Lou
Title: Re: Square
Post by: Yadda on October 16, 2019, 04:53:46 AM
... I don't see the radius on one side.

Is the inside corner of the arm rounded?
Title: Re: Square
Post by: jdjax on October 16, 2019, 06:16:40 AM
Thanks for that Papaw.