A Torque Wrench to Adjustable Wrench Adapter

[Gadgeteer]

You mount your attachment 90 degrees from the beam, and no correction factor is needed, just like a crow's foot.

I think you still need to consider that in your postulated configuration the torque would, actually, be considered to be applied along the hypotenuse length between the torque wrench handle and the end of the added wrench sitting on the bolt/nut to which the torque is applied. So, the applied torque would be a bit more than what is read on the torque wrench scale, since the cord length is longer than the torque wrench.