0000354204-97-000276 SC 13G 1 19970212 NONE CENTRAL SPRINKLER CORP 0000766041 3490 232328106 PA 1031 SC 13G 34 005-37077 97525388 451 N CANNON AVE LANSDALE PA 19446 2153620700 451 N CANNON AVE LANDSDALE PA 19446 DIMENSIONAL FUND ADVISORS INC 0000354204 0000 22370029 IL 1231 SC 13G 1299 OCEAN AVE 11TH FLOOR SANTA MONICA CA 90401 3103958005 1299 OCEAN AVENUE 11TH FLOOR SANTA MONICA CA 90401 SC 13G 1 000035420497000276-001-seq1-sc-13g.txt SCHEDULE 13G - 2/96 - CENTRAL SPRINKLER CO