Perkins Brailler

Like a manual typewriter, it has two side knobs to advance paper through the machine and a carriage return lever above the keys.

The rollers that hold and advance the paper have grooves designed to avoid crushing the raised dots the brailler creates.

[3] The director of the Perkins School for the Blind, Gabriel Farrell, asked Abraham to create an inexpensive and reliable machine to allow students to more easily write braille.

A system of six cams consisting of rods with a square cross-section transfers keystrokes to the wire-like styli contained in the carriage.

The SMART Brailler includes sensors capturing the mechanical motion of the embosser, and, when powered, adds text-to-speech audio feedback and a digital display for use by both sighted and blind individuals.