In adding and recording columns of figures, it quite often happens that it is desirable to print a number without adding it into the total, which may be accomplished in general by depressing the non-add key or knob, or what may be supplied for that purpose. These numbers, however, were not provided with any means by which they could be distinguished from those added into the total until Jesse G. Vincent conceived the idea of printing a distinguishing mark beside them to designate that they were mere numbers not added to the total. The means for accomplishing this feature is shown in patent No. 1,043,883, applied for September 24, 1906, and issued November 12, 1912. [Sidenote: _Selective split keyboard_] A new improvement in the split keyboard formerly devised by C. W. Gooch is shown in a patent issued to Wetmore & Niemann applied to the Felt “Comptograph.” This improvement consists of a selective device for splitting the keyboard into four different combinations selective to any combination. The patent was applied for April 24, 1907, and issued February 2, 1915; the number is 1,127,332. [Sidenote: _Selective printing cut-out_] In some classes of recording it is desirable at times to cut out the printing of some of the orders and in others the whole of the printing mechanism. Mr. Fred A. Niemann patented a means for such a contingency. The patent was applied for April 24, 1907, but was not issued until March 9, 1920. The feature was shown applied to the Felt Comptograph for tabulating or printing vertically a series of added and footed columns of figures. [Sidenote: _Grand totalizer_] It is sometimes desirable to print the sum of all the totals of the footed columns or what may be called a grand total. William E. Swalm, in patent No. 885,202, applied for October 24, 1907, and issued April 21, 1908, shows how this feature may be accomplished on the Burroughs recorder. It consisted of an extra series of accumulator wheels that could be meshed with the regular accumulator wheels, and thus receive actuation resulting in accumulation, the same as the regular wheels. When, however, the regular wheels are zeroized in printing the individual totals, the extra accumulator wheels are left out of mesh. Thus the grand totals are accumulated. The printing of the grand total is accomplished by the meshing of the grand total wheels with the regular and the usual operation of taking a regular total. The regular wheels, however, must be cleared first. [Sidenote: _Alternate cross printing_] The shuttle carriage, a means devised to print two columns of figures by printing a number in one column and a sum in the other by alternate action, was the conception of Clyde E. Gardner, and is shown applied to the carriage of the Pike recorder in patent No. 1,052,811 of February 11, 1913. The patent was applied for September 24, 1908, and consists of means for automatically shifting the carriage back and forth. [Sidenote: _Determinate item signal_]