Patent for a new and improved buckle. This design "is composed of two parts, the upper end forming what may be termed a 'buckle proper,' to secure the end of a strap, and the lower ends formed into curved portions which fit one within the other and constructed to interlock, so that the lower end is adapted to catch a chain, bit, or other device which it is desired to connect a strap to, the . . . parts forming a hinge, whereby they can be turned one upon the other and separated entirely, or at their upper ends to allow the adjustment of the strap secured thereto" (lines 18-30).