History of the Typewriter

201— Fig. 147. its means, the carriage can not only be moved to any fixed point, but may be made to stop short at any desired place before the fixed point is reached. Thus all tabulated work can be exeruted with decision and regularity, and without ever having occasion to use the space-bar, in order tø bring the various figures under their proper denominations. The tabulator on the Sterns Visible does not require any special rack-bar, as in other forms. The mainspring which governs the movement of the carriage is contained in a large drum at the back. The periphery of the drum 13 fitted with series of notches or teeth, numbered from one to eighty, in order to correspond with the numbers on the front scale. Into any of these notches may be dropped the stops for the tabulator, and when the tabulator key is used, the carriage will then move to the spot at which the stop has been fixed,