Bill, isn't that style considered a corner brace?
I've seen them called both corner and joist. The advantage of the style is that you can fit it between joists, studs, and so on in stick framed houses, so I think joist brace may make more sense; but see next paragraph.
There's also the style I've seen consistently called a corner brace (below), apparently designed with electricians in mind, suitable for drilling through, say, a floor plate. I finally gave in and got one when I found it at $15 (previous offerings in my area had been much pricier). For production speed, the fact that you could operate the crank handle continuously is probably what made this worth buying; it would have been faster than what I called a joist brace above. You sure couldn't use it in tight spots. I imagine electricians and plumbers might have had both styles in their kits.