1

AFRICAN-AMERICAN INVENTORS

ELIJAH McCOYGRANVILLE T. WOODSLEWIS LATIMER

ELIJAH McCOY

z The son of runawayslaves. He was bornin Ontario, Canada.

z EDINBURGH, SCOTLAND(APPRENTICESHIP IN MECH.ENG.)

DRIP CUP

z Patented 1872z over 57 patentsz Elijah McCoy Manufacturing

Firm(opened to market andimprove inventions)

Places he received patents

z Great Britainz Francez Austriaz Germanyz Russia

GRANVILLE T. WOODS

z BORN IN COLUMBUS,OHIO(1856)

z TRAINING (Technical schoolfor electrical and mechanicaleng.) ------- 2 yrs as engineeraboard British SteamerIronsides

INVENTIONS

z Dynamotor- regulated electric motorz induction telegraph- communicate to and from moving trainsz electro -mechanical brakez electric railway conduit

2

PATENTS CON’T

z OVER 50 PATENTS- MOST HAD TO DO WITH CONTROL ANDDISTRIBUTION OF ELECTISITY

z WOODS RAILWAY TELEGRAPH COMPANY- CINCINNATI, OHIO

LEWIS LATIMER

z “LIKE THE LIGHT OF THE SUNIT BEAUTIFIES ALLTHINGSON WHICH IT SHINES, AND ISNO LESS WELCOME IN THEPALACE THAN IN THEHUMBLEST HOME ”

LIFE

z Member of Edison Pioneers(group of distinguishedscientists and inventors who worked for Edison)

z joined navy at age 15- discharged in 1865

z Crosby and Gould(Patent Office)-learned to draft

FILAMENT

z Electric lamp withcheap filament

z helped Edison light upthe world

z “Incandescent ElectricLighting”- bookwhich was a guidefor lightingengineers