What is it?

A

Awlknottedup

Member

• Jul 10, 2014

• #1

The only markings are a patent date of Apr 6 99 and a trade mark of two parallel arcs with a single line connecting in the middle.

 

R

Russ from MN

Well-known Member

Location

Bemidji MN

• Jul 10, 2014

• #1

Looks like some kind of scribe, with an adjustable stop.

 

S

ss55

Well-known Member

• Jul 10, 2014

• #1

Half of a beam compass?

 

R

retired farmer

Well-known Member

• Jul 10, 2014

• #1

Could be a trocar.

 

D

ditchwitch

Well-known Member

• Jul 10, 2014

• #1

Im with Russ , i also think its a metal scribe

 

T

tech4

Member

Location

Georgia

• Jul 10, 2014

• #1

Looks like a Marlin Spike to me

 

B

Bill in IN

Member

• Jul 10, 2014

• #1

Trammel point

 

R

Ralph, Ohio

Member

Location

Ohio

• Jul 10, 2014

• #1

Possibly an awl & the size of the hole being made could be determined by the depth stop being moved closer to the point?

 

J

JMS/.MN

Well-known Member

• Jul 10, 2014

• #1

A trocar is hollow....

 

B

bison

Well-known Member

• Jul 11, 2014

• #1

(quoted from post at 20:26:37 07/10/14) A trocar is hollow....

Click to expand...

trocar is solid awl in a hollow sheat.
When you stick a cow you hold the sheat down and pull the trocar out.
I used them plenty when i had dairy cows,..got still one of these devices kicking around somewhere.

I go with the awl with an adjustable depth stop

 

I

IH2444

Well-known Member

• Jul 11, 2014

• #1

A stabulator with depth stop.

 

S

ss55

Well-known Member

• Jul 11, 2014

• #1

So...what is it?

 

J

JRSutton

Well-known Member

• Jul 12, 2014

• #1

I don't buy that as a depth stop.

It's too complicated, and if it were some kind of an awl, it's awfully fat to need a depth stop - if you're puncturing something with it, it just couldn't be all that accurate to require a depth stop.

I'm voting for one end of a beam compass as somebody else suggested.

That "stop" looks MUCH more like a no-mar clamp. To clamp on a beam (like a yardstick) without hacking the beam up with a set screw when it's tightened.

 

C

Cliff(VA)

Member

• Jul 15, 2014

• #1

Definitely a trammel point.

Cliff(VA)

 

D

dhamps10

Member

• Jul 16, 2014

• #1

How long is it?

 

D

dhamps10

Member

• Jul 16, 2014

• #1

How long is it?

 

OP

OP

A

Awlknottedup

Member

• Jul 16, 2014

• #1

I do not know what it is. It was among a long time aircraft machinist's tools and there was only the one.

 

OP

OP

A

Awlknottedup

Member

• Jul 16, 2014

• #1

5 3/8" long.

 

D

Dr. Walt

Well-known Member

• Jul 18, 2014

• #1

It's a Trammel Point, used with a long steel ruler as a Beam Compass to make large circles, or to duplicate the radius of an arc.

You are missing the steel ruler and scribe holder, to make it a complete unit.


:>)