Jackson Belknap is shown here as having patented a number of devices

Alabama Inventors
http://bpldb.bplonline.org/db/formProc/inventors?city=&gender=&race=&firstname=&search_lastname_parameter=starts&lastname=&title=inventors&county=&assignee=&invention=&search_firstname_parameter=starts&year=&atnum=2400

See also:

https://www.google.com/search?site=&source=hp&q=Jackson+Belknap+Mobile%2C+Alabama&oq=Jackson+Belknap+Mobile%2C+Alabama&gs_l=hp.3...3982.12478.0.13584.18.18.0.0.0.0.212.2470.0j16j1.17.0....0...1c.1j2.64.hp..1.8.1081.0.t7JCsChXaf0