Just one file today, lots of good stuff in the 1947 issues and it is a larger file. There is a great article on ball bearings, a number of plans for small sheet metal brakes, a great two part article on power tool short cuts, a nice power filing machine, and a super plan for a 10" tilting arbor saw, which I am sure provided inspiration for many of the shop built saws being built today.
The criticism to these old plans is often that "they are old", but if you look around the web you will find that many of the plans out there are similar or updated versions of these plans, weather deliberate or totally coincidental the ideas all started in these old magazines.
Popular Mechanics stopped running the "Shop Notes" title in 1960 but continued to run similar articles, under different titles. I will continue to highlight these articles till 1975-76. I have files into the 2000's but after the 70's the concentration shifted more to colonial furniture projects and these are all available in there popular year books and DIY encyclopedias which can be found in any used book market.
Here is the link for 1947.
I am a little sore today, roofing exercises different muscles than you normally use. If I get any work done this afternoon I'll post some pictures this evening.