Tabulator for typewriters and the like

Claim 1

IN AN OFFICE MACHINE HAVING A CARRIAGE, A PLATEN ON SAID CARRIAGE AND A TABULAR ON SAID CARRIAGE BEHIND SAID PLATEN, SAID TABULATOR INCLUDING A SUPPORT PARALLEL TO SAID PLATEN, A ROW OF TRANSVERSELY DISPLACEABLE STOPS ON SAID SUPPORT AND MECHANISM INDIVIDUALLY ALIGNABLE WITH ANY OF SAID STOPS FOR SELECTIVELY DISPLACING SAME FROM AN INOPERATIVE TO AN OPERATIVE POSITION, SAID STOPS BEING SO DISPOSED AS TO BE HIDDEN FROM VIEW OF THE MACHINE OPERATOR BY A RECORD SHEET MOUNTED ON SAID PLATEN, THE COMBINATION WITH SAID TABULATOR OF LUMINOUS DISPLAY MEANS ON SAID CARRIAGE VISIBLE FROM A LOCATION FORWARDLY OF SAID PLATEN FOR VISUALLY INDICATING THE POSITION OF ANY OPRATIVELY DISPLACED STOP RELATIVE TO SAID PLATEN, SAID DISPLAY MEANS INCLUDING MEANS RESPONSIVE TO AN OPERATIVELY DISPLACED STOP FOR PRODUCING A LIGHT SPOT OF A WIDTH SUBSTANTIALLY SMALLER THAN THE SHEET WIDTH AT A CORRESPONDING LOCATION ADJACENT THE RECORD SHEET MOUNTED ON SAID PLATEN.