An early version milling attachment??

[saipan59]

The museum (where I volunteer) has this milling attachment (but no lathe that matches it).
It's very close to a Craftsman (Atlas??) 2987. The carriage casting is 10-501, the same as the 2987.
But the "vise" portion is marked "9-502" instead of "10-502", and it mounts to the slide differently. In the picture, note the two nuts beside the dial, and see the difference with the exploded parts list for the 2987.
Also note that the slide has TWO recessed gib screws (no locknuts), instead of three gibs with locknuts.

SO, is this just an older version of a 2987? Or an Atlas-specific version that is different from the Craftsman?

Thanks for any comments!
Pete

 

[jwmay]

Atlas made a 9” lathe also. It was pre 10F Atlas. I would guess this milling attachment is for that.

 

[markba633csi]

I think it's for another brand of lathe- Logan maybe

 

[saipan59]

Found the answer of this attachment. From the lathes co UK site:

"Over the years the slide underwent a number of changes with the first versions, sold until approximately 1936, being set up for use on the 9-inch and early 10-inch lathe where the unit was secured to the cross slide by two T-bolts running in a circular slot (it is possible that this design was briefly changed to two T-nuts, with the bolts going in from the top) With an improvement in the design of the compound slide (late in the short life of the 10-inch D Type) the milling unit had to be modified to accept the same fitting - a stout post integral with the cross slide over which either the top slide or the milling unit dropped. Square-headed bolts, passing through the base of the column casting, pushed short bevelled-ended bars against an inverted conical face on the post and so drew it down tightly. The modified unit retained the early slideway with its 3 gib screws (one of which acted as a lock) and a vise held on by two bolts. In 1940 the sliding section was given an additional gib screw and the vise strengthened by using a post mounting (exactly like the base) -a modification that allowed the unit to be strengthened by eliminating the cutaways in bottom of the vise that had been necessary to allow access to the mounting nuts."

Pete

 

[markba633csi]

I stand corrected, it's early Atlas indeed

 

[Shiseiji]

I think it's for another brand of lathe- Logan maybe

Hi Mark. I was curious so looked at an early Logan catalog. Didn't see a milling attachment listed. The mid 60's catalog listed a Palmgrem.