Its a time consuming project to scan, import into word, resize and clean up, convert to pdf save a copy and then reduce the res. on a second copy so its small enough to upload in a reasonable amount of time. It's nice to see the finished product though. I have 1.5 GB of American Machinist magazines and twice that much in American and Canadian Machinery mags. These were all big in the first quarter of the last century, but if you like old iron these old mags are fascinating. I am hoping to make more compilations in the future.
As mentioned these two were compiled by Lindsey Publications. I have seen 1 or 2 of these projects circulated on the web, but most of it is fresh or hard to find material for the web. The first is a 15 page compilation of metalworking projects from American Machinist including some good molding information for casting.
To download "Projects From American Machinist" go to my Books - Free Downloads page. # 41 - 4 MB - pdf
The second compilation was put together from projects in a number of electrical and engineering magazines from 1916 to 1926. There are some nice projects here for the home shop tinkerer, some small chemical balance scales, a universal lathe attachment, a small carbon arc crucible furnace, a practical high frequency Tesla coil, that will fry you if your not careful. From the article "Constant caution will well repay, and is preferred to saying it with flowers". No beating around the bush there, ha ha. There is a small surface grinder, I have seen this on the web but never the whole article. You will also find a neat simple hand milling machine, and a 1 HP gasoline engine of simple construction.
To download "Mechanics Notebook 20" go to my Books - Free Downloads page. # 42 - 9 MB - pdf
Even if you choose not to play with these ideas in the shop, they make for interesting reading.