"Edward Hennessey" wrote in message
m...

"Tim Wescott" wrote in message
...
On 11/04/2010 11:45 AM, Christopher Tidy wrote:
Has anyone heard of a metalworking process called "rat lapping"? I
am
researching an old firm and found a reference in Google Books
which
lists them as " PRODUCT - Precision Rat Lapping& Grinding". Is
this
actually a process, or is it just an OCR error when it should say
"Part Lapping"?

My dog laps up little baby rabbits and birds and things -- I think
he'd lap a rat right up.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" was written for you.
See details at http://www.wescottdesign.com/actfes/actfes.html

My conjecture would be that this is an OCR merger of F and l.
There is a machine in the shop like that for lapidary materials.
But the concept of seeing how rodents would do turning through a
maze built on a vibrating platform might have parallels to human
behavior in earthquakes.

Regards,

EH



The most common industrial venue for flat laps in my experience is in
optical shops,
so if your reference has any relevance to lens or glass working, that
would implicate
the process.

Regards,

EH