1945 and 1946 were not overly prolific in workshop machine plans but there are lots of hobby machine shop tooling and accessory plans. There's an interesting plan for a little trip hammer that uses a small section of rail for an anvil. This plan is just crying for an improved version. There's also a nice plan for a set of storage bunk beds for the kids.
Heres the link for 1945:
And here is the link for 1946: