Lindell has said many times one of the nicest movements he has seen is the 16 size Illinois 19 Jewel Bunn with "Motor Barrel". So . . . I dug one up and reclaimed it today to it's rightful task of timekeeping. In doing so, I could'nt miss the Illinois design Jeweled Motor Barrel that "floats" the winding arbor . . . AWESOME!!!

Let me put this together and if you follow carefully and THINK, you will see the genius of design (maybe Getty did it )!

Upper Left; The motor barrel "face up" with the mainspring loaded and just adjacent to the barrel cavity in the main plate. Note the motor barrel bearing pin staff sticking up from barrel center through the spring.

Upper Right; The other side of the motor barrel facing the cavity it will rest in and note the bearing pin in the center of the barrel and the mating jewel in the main plate that will receive it. This is the bottom "Motor Jewel" that supports the direct thrust of the spring motor barrel against the first wheel. It has prectically no side torque clearance making it very "shockproof".

Lower Left; The motor barrel with barrel cover inserted and barrel installed in the main plate. Ready to go in is the winding arbor "core" with the spur that engages the main spring. Note Square hole in the arbor core.

Lower right; The winding arbor core installed in the motor barrel to engage the main spring, and the winding arbor coupling with square connector ready to drop in to the winding arbor core. NOTE all of this paraphenalia for the inner winding drive is clearance fitted around the motor barrel bearing pin staff sticking up through the center.

Upper Left, The winding arbor coupling is assembled to the winding arbor core with the square connector inserted into the arbor socket. There is no axial restraint to the winding arbor core so it only locks the "reserve torque" of the wound spring by being locked thorugh its square hole to the square coupler shaft inserted into it.

Upper Right, The Barrel Bridge is now installed and the hole in the Barrel Bridge that the winding arbor coupler comes through IS the "hanging bearing" for the winding arbor coupler alone! All else is "floating" in the motor barrel cavity of the watch and the motor barrel is totally isolated via the 2 jewels from any of the winding mechanics!

Lower Left, FINALLY! The top jewel is installed and supports the end bearing pivot of the motor barrel bearing pin staff that comes all the way from the bottom of the motor barrel. THIS supports the open end of the cantilevered motor barrel that is driving the watch, and is centered by the SAME single bearing interface that supports the "hanging winding arbor"!

Lower right "SO" the finished assembly using three small screws to secure the top motor jewel to the arbor coupler "closes" an assembly of one of the more unique and Efficiently designed WORKING jeweled motor barrels.

Lindell is right (as usual) these are beautiful designs and make excellent timepieces!

Note this partifular one is s/n 4214969, c.a. 1923, and is inscribed on the back;
JOHN J. WOODS
JAN. 6. 1880
SEPT 26, 1934