Vehicle transmission and control — Harley-Davidson patent US3144860A (1964)
PatentUS3144860A
TypeUtility patent
Filed1961-07-28
Granted1964-08-18
InventorWilliam J Harley
SystemTransmission & clutch
“1. A SAFETY DEVICE FOR AN ENGINE COMPRISING, A TRANSMISSION HAVING A SPEED RESPONSIVE INPUT CONNECTED TO SAID ENGINE AND AN OUTPUT MEANS CONNECTED TO SAID INPUT MEANS BY A BELT, START MEANS FOR SAID ENGINE, MANUALLY OPERABLE MEANS HAVING A START AND A RUN POSITION, AND LOCKOUT MEANS OPERATED BY…”
Drawings (3 sheets)



Parts for this system
12-6924
Clutch Release Cover Retaining Ring
$4.8612-1317
OE Transmission Retaining Ring for Dog Ring
$5.1814-6909
Ultima Clutch Pulley Cover Oil Seal
$5.4012-1318
OE Transmission Countershaft End Nut
$6.00Check fitment first — add your bike and we flag what fits.
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Drawing from the US patent record (via Google Patents). A patent shows the invention as filed, not necessarily the production part on your motorcycle — confirm fitment for your model and year. Independent aftermarket retailer, not affiliated with Harley-Davidson, Inc.