Bellifortis
Well-Known Member
While reading in OP 1664, page 197, Navy Nose Fuze (Rocket) Mk 135, I noticed a fuze element I have never heard of before : a bell crank. I know the meaning of bell and know a crank like the ones used to start the first cars more than a 100 years ago. Cranking to me is a "turning round motion". I now have a few questions. Is this fuze safety element shaped 3-dimensionally like a bell or is it only 2-dimesionally shaped ? When was this invented ? Is this design element still used nowadays ? In the drawing the 2 halves are fixed by a " bell crank pin" on which they can turn. If the element is quite thin, 2-dimensionally shaped I can understand that the halves can swing out on their pins, but not if it is round- shaped like a complete bell. Has anybody more detailed pictures of a "bell crank" ?
Thanking you in advance for your consideration, I remain respectfully yours,
Bellifortis.
Thanking you in advance for your consideration, I remain respectfully yours,
Bellifortis.