You are here:

FREE Newsletter

Inventors Thomas Stewart - Mop

Thomas Stewart of Kalamazoo, Michigan, patented a new type of mop (U.S. patent #499,402) on June 11, 1893. Thomas Stewart had invented a clamping mop that could wring the water out of itself by the use of a lever.

Thomas Stewart - Mop
Thomas Stewart - Mop

Patent Abstract:1. A mop-stick, comprising a stick proper, provided with the T-head having the grooved ends, forming one portion of the clamp, the rod having a straight portion forming the other part of the clamp and from thence converging rearwardly to the sides of the stick, a lever to which the free ends of said rod are pivoted, a ring loose on the stick, to which the forked ends of the lever are pivoted, and a spring between said ring and the T-head; substantially as set forth.
2. The combination of a mopstick provided with a T-head, forming one part of the clamp, a moveable rod forming the other part of the clamp, a lever to which the free ends of said rod are pivoted, said lever being fulcrumed to a moveable support on the stick, and a spring exerting a resistance against the lever when the latter is thrown back; substantially as set forth.

Thomas Stewart - Other Inventions
Thomas Stewart co-invented with William Edward Johnson an improved station and street indicator in 1883. It was used with railways and street cars to signal what road or street the vehicles were crossing. Their indicator would automatically activate a signal by means of a lever on the side of the track.

Thomas Stewart later invented an improved metal bending machine in 1887 that was able to oscillate.

Thomas Stewart - metal bending machine
Lower Left - Thomas Stewart - metal bending machine
Right - Thomas Stewart and William Edward Johnson - station indicator

Related Information
Black Inventors
Kitchen Appliances
Shopping for a Mop - Compare Mop Prices

Subscribe to the Newsletter

From Mary Bellis,
Your Guide to Inventors.
FREE Newsletter. Sign Up Now!

Important disclaimer information about this About site.

Newsletters & RSSEmail to a friendAdd to
All Topics | Email Article | |
Our Story | Be a Guide | Advertising Info | News & Events | Work at About | Site Map | Reprints | Help
User Agreement | Ethics Policy | Patent Info. | Privacy Policy | Kids' Privacy Policy

©2006 About, Inc., A part of The New York Times Company. All rights reserved.
Mental Health

Depression Self-Test Vitamins for Depression? Bipolar Red Flags Coping With Disasters Celebrities With Bipolar

What's Hot

Gyroscopes - Elmer Sperry and Charles Stark Draper Gyroscope...Angel AlcalaThe History of the BikiniRusi Taleyarkhan Jack Johnson