Bridgeport serial numbers Was: scraping beds for long tables

--- In CAD_CAM_EDM_DRO@y..., Jon Elson <elson@p...> wrote:

> > lew best wrote:
> >
> > > Hi
> > >
> > > Just curious; how do you estimate the age of a Bridgeport with

reasonable

> > > accuracy?
> > >
>
> On Bridgeport machines, there is generally a serial number on the

head and

> knee. The heads are often swapped on older machines that have been

rebuilt.

> The knee serial number is usually on the top of the knee, between

the Y axis

> ways, when the sliding chip guard is pushed back. The numbers are

sequential,

> so if you have a point of reference, you can easily guess it within

5 years.

>
> Jon

Go to:-
http://www.metalwebnews.com/howto/bridgeport/bridgeport.html
There is a chart there. I have printed it out and put it in my
Bridgeport book.
Only problem is a lot of Bridgeports were made under license and so
far I can't find a number on these that relate to the published list.
I think there is a US and a UK list.
John Stevenson.