1899 Street sweeper designed to automate the process of cleaning city streets.

The first invention credited to Parpart is a street sweeper designed to automate the process of cleaning city streets. Parpart filed two patents for this invention (No. 649,609[32] in 1899 and no. 762,241 in 1901), both of which listed Hiram D. Layman as co-inventor despite his being only an investor. The sweeper was designed to reduce the manual labor involved in street sweeping by providing an automated mechanism to "efficiently gather dirt from the street-surface regardless of inequalities" and deliver the dirt by an onboard elevator to a storage receptacle that could then discharge it into carts. Also important in the design was that the sweeper would be covered, reducing dirt and dust in the air during its operation. An early electric refrigerator was invented by Florence Parpart in 1914. She holds patents for industrial swe.eping machine & electrical refrigerator

Category:
Technology - Appliances

Completion Status:
yes

Patent Number:
N/A