Patent for a new and improved clasp. This design "consist[s] of the front plate formed with the integral strap loop or slot at its upper end, the teeth at its lower end, and the opening above said teeth, the rear plate formed with integral teeth at its lower end, side ears at its upper end, and the lugs below said ears and projecting beyond the outer face of the plate, the spindle passing through the ears and provided with a spring throwing the plates apart, and the locking-plate pivoted at its upper end to the lugs and having a [different] lug projecting inward from said upper end" (lines 83-96).