L. Bulasky

Louis Bulasky's first patent was in 1892 for a hat trimming machine with several more relating to hat manufacturing. The last company patent was from August John Wolhpart, who took out a patent for the company in 1931. In the 1950s and 1979, Union Special and Singer cite his patents in their own inventions.
So basically, if anyone says that Singer had the first zigzagger. They are wrong. Though Singer may have had the first home zigzag machine with the 206.

The machine was set to sew wire on hats ...
for the edge trimming of the brims and more...
Binding ,turn over bindind,with piping ,double piping.

At a certain point some of theses machines have been seen set and fit to sew straw braids with the zig zag point ....