Across
- 4. Referred to as the "Black Edison." Invented & Patented Tunnel construction, patented the Rollercoaster called Figure 8.
- 5. Improved the design of the fire extinguisher, patented in 1872 & invented a system for water to pump in buildings.
- 9. Inventor of the Butter Churn & Casket Lowering Device.
- 10. The 1st African-American professor @ Harvard and the inventor of the Wooden Golf Tee.
- 11. On July 7, 1911, patented a folding chair and designed it to be used in schools, churches & auditoriums.
Down
- 1. In 1878, this African American Abolitionist & inventor received the U.S. patent # for a wagon-mounted fire escape ladder.
- 2. On February 5, 1884 Improved the egg beater and Invented an early mixing machine.
- 3. The first Black heavyweight boxing champion in 1922 & patented his first Wrench in 1835.
- 6. Most notable inventions: 3 position traffic signal & smoke hood. Discovered/developed chemical hair processing system.
- 7. English architect invented the baby carriage in 1733 for the 3rd Duke of Devonshire's children.
- 8. Patented & updated the fountain pen design, improvement to the hand stamp & a close circuit electric railway system.
