Abstract: A vertical reversible lifter piece is disclosed for use with voting machines having one or more vertical interlock structures. The lifter piece more evenly distributes the tension and weight on pull strap structures used in the voting process. The reversible nature of the lifter piece allows it to be positioned in several orientations relative to the interlock structure.

Abstract: A voting machine includes a band interlock system for limiting the number of selections made. A plurality of aligned moveable selector keys are provided with cam surfaces on each key shaft. A rotatable column locking mechanism is mounted adjacent each key having a pair of removeable pins, one pivotal about the other. A slide device connects each key with the adjacent locking mechanism to rotate the mechanism as the key is depressed. A metal interlock band is threaded between each pair of removeable pins of selected column locking mechanisms to interconnect the corresponding voting keys. The interlock band is secured between clamps with a predetermined amount of slack. As each selection is made, the locking mechanism corresponding to the voted selection key pivots to reduce the slack in the interlock band. After a certain number of selections, the slack in the interlock band has been eliminated and the band is taut against the selected locking mechanism so that additional mechanisms cannot be rotated.