DENNIS M WILLIAMS
Broker in Clinton, MA

4752772, Jun 21, 1988

Mar 30, 1987

7/033358

Timothe Litt - Waltham MA
William J. Warren - Chelmsford MA
Dennis M. Williams - Clinton MA
Eric E. Litt - Willoughby OH

Digital Equipment Corporation - Maynard MA

G09B 2102

340712

A Braille display cell which may be embedded in one of a plurality of keys that are used to provide input to a digital data processor. Cursor controls identify a location in text containing characters, and, in response thereto, the processor produces a Braille actuation signal which identifies the character located at said position. The Braille actuation signal, in turn, generates a Braille indicator of the character on the Braille display cell. With the assistance of the cursor controls, the text can be scanned to cause the Braille indicators corresponding to the characters in the text to appear sequentially on the Braille display cell thereby displaying the text in Braille so that said text can be read tactilely.

4080229, Mar 21, 1978

Apr 25, 1977

5/790853

Dennis M. Williams - Clinton MA

Nylon Products Corporation - Clinton MA

B32B 3120

156 731

Method and apparatus for the manipulation of sheet materials with reciprocating head machines. Each sheet of the material is mounted on a transport mechanism and controllably advanced relative to a reciprocating head. For each such advance, the sheet is pivoted by the transport mechanism into the path of the reciprocating head just before the engagement of the latter with a work piece. This permits precision control over the contact of the head with the material without disturbing the work piece.