No. 530 Single-End Tenoner

The machine

If the mortise is the slot, the tenon is the tongue — and a tenoner is the machine that cuts it to fit. The work is clamped to a rolling carriage and fed past a set of cutterheads that take both cheeks and both shoulders in a single pass, leaving a tenon that is square, centered, and identical to the last hundred it cut. Single-end means one end of the workpiece per pass; the double-end versions that did both at once were the length of a small truck.

The 500-Series were Greenlee’s tenoners, and the 530 was built for heavy work — the structural joinery of sash, door, and timber construction, where the tenon carries real load.

The one in this collection

Serial 32205 was built in February 1921, into the building boom that followed the First World War. It came into the collection the way most of these machines do — found, bought, strapped to a trailer, and hauled home behind a pickup, several thousand pounds of Rockford iron riding on good straps and optimism. The photograph above is that day.