When I started working as a framing carpenter in the late sixties. My boss who had spent some time framing in California claimed that the California Government required that the springs be removed for safety reasons. I have never heard this from any other source. Has anyone out there heard this story?
Yes, I've seen comments that effect online, but I don't recall exactly where. My own collection has a total of 8 Yankee screwdrivers (some North originals and some post-Stanley acquisition). They are —
#30: one driver, built w/o spring
#30A: two drivers, had springs, both removed
#130A: one driver, has spring, works
#131A: one driver, had spring, removed
#35: one driver, built w/o spring
#135: one driver, has spring, works
#135A: one driver, has spring, works
So for what it's worth, its an even-steven list: three made with springs work and three others that came with springs have them removed. Two had no springs when they came from the factory. The history of any of these? Unknown.
I can understand why some owners, whether required by law or not, might remove the spring. All of mine (of any apparent age) that have working springs have a "brisk" deployment, and not one you'd want to be directly in front of at that moment.
I've given at least one of each type the Lee Valley adapter for 1/4" hex bits, and also have a small selection of original Yankee bits for each model. (Most of the bits are ordinary ones than Phillips, of course.)
Also, I have a couple of original drill bits for these drivers, plus the shop has three #41 Yankee push drills (one's former Bell System), useful for small around-the-house jobs.