home-crafted heavy-duty winch pulley fastened to a Jahco [Jack & Heintz] JH-4 ER aircraft starter -- has heavy power cable and a two-way switch to activate the 4 relays -- 24VDC -- with the 'AN' Military stamping - probably late in WWII --
-- not frozen but not able to test with the 24V solenoids - 1 solenoid 'clicked' in each direction, when I hooked up my 12v car battery and pushed the toggle, but nothing moved -- was told it worked when I got it but it needs 24V -- o/w overall wear from use --
-- *found this online: Dec. 30, 1946 'STEEL' magazine "TWIRLS 3000-LB ENGINE: Develop ing enough energy to start 36 average autos, the Jack & Ileintz JH-4 starter is capable of spinning the crankshafts of airplane engines with piston displace ments up to 4360 cu in. Weighing only 39 lb, it undergoes terrific stresses during the few seconds of its concentrate power output in twirling a 3000-lb engine. Jahco engineers in Cleveland designed the starter to outlast the engine. For example, armature bands which are resistant to corrosion by sea air and condensation, are of Monel. According to “Mechanical Topics,” the strength needed for the high rotational inertia generated by the whirl ing armature segments is supplied by 0.050 gage Monel strip. The starter is a combination electric inertia and direct- cranking unit."* --
Free Local pick-up is an option. Sorry but NO Out-of-country shipping for this item.
Each week we post a number of interesting items that have been purchased from Oregon Estate Sales-shipping can be recalculated and combined with multiple purchases-please let me do the calculating for combined shipments before paying.