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Compression-reliever for crank-cases — Harley-Davidson patent US1184344A (1916)

PatentUS1184344A
TypeUtility patent
Filed1915-08-20
Granted1916-05-23
InventorWilliam S Harley
SystemEngine

“W. S. HARLEY. COMPRESSION RELIEVER FOR CRANK CASES. APPLICATION FILED Aue.20. 1915. 1,1 84,344. Patented May 23. 1916. d/W OM05: sas an enema WILLIAM S. HARLEY, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO HARLEY-DAVIDSON MOTOR (30., OF MILWAUKEE, WISCONSIN. Specification of Letters Patent. Patented May…”

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Drawings (1 sheet)

Compression-reliever for crank-cases — sheet 1

Parts for this system

32-0064
Magneto to Crankcase Oil Seal Ring and Gasket Kit
$6.35
14-0555
Rear Caliper Piston O-Ring
$10.64
15-1380
Rear Master Cylinder Gasket Kit
$10.64
23-0825
Handlebar Master Cylinder Piston Cup
$10.64

Check fitment first — add your bike and we flag what fits.

More engine schematics

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Compression-relieving mechanism — patent drawing
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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.