Anybody know anything about this odd Wilton?

[Jacobs976]

Friend pulled this out of a pile of stuff dumped at a worksite and gave it to me.

It's a 5" Wilton but it seems to have an odd setup for the locking plate compared to the examples I could find. This one has an actual plate on the outside of the dynamic arm but the others have a smooth section, presumably a collar on the inside kinda like the Wilton Scouts. Plus the whole arm detaches from the dynamic body.



It's currently missing the two screws for the plate but I couldn't find a parts list or something to make sure I'm not missing any washers. Or when it was probably made.

 

[Jacobs976]

Still haven't found any official info but I did manage to find one restoration video with the same dynamic arm setup but the later in-line spindle nut design and later two post toothed swivel lock mechanism then one video with the one piece dynamic arm but the standard spindle nut and one post swivel lock mechanism. Plus the current model(745) has the one piece dynamic arm, in-line spindle nut, and two post toothed swivel lock mechanism.

Basically the two piece dynamic arm looks to have been used before and into the beginning of the mfg of the in-line spindle nut and two post toothed swivel lock mechanism. But the one piece dynamic arm was in production before and after the two piece dynamic arm as well.

Also apparently no missing pieces other than the two screws. Thought there'd be a thrust washer but there isn't. Screws were backed out rather than stripped, also same thread as the jaw screws, so replacements might not be too rough although they looked to potentially be tapered.

 

[Jacobs976]

Got it back together and replaced the two screws for the arm. Turns out they're 1/4-20, same as the jaws.

Got 6 1/4-20 1" machine screws to replace the missing two and four for the jaws. Head diameter is different than commercial machine screws so I had to shave the two a fractional down to match the diameter of the original screws.

Will need to shave a fraction of the other 4 heads and cut them down to 1/2" once I find some 1/2 steel plate to make new jaws.