Abstract: An adjustable side opening buckle for securing the tongue end of a watchband or the like to the buckle end of the band in which a frame forms a generally rectangular passage for receiving the buckle end of the band with a spring plate biased between the top of the frame and the upper surface of the band to urge one of a plurality of spaced notches in the underside of the band into engagement with a boss on the bottom of the frame adjustably to hold the buckle end in position on the frame and in which upwardly extending hooks spaced along the top of the frame are adapted to be received in slots in a tongue plate secured to the tongue end of the band and in which a cover supported on the frame for pivotal movement on an axis extending along one side of the frame is adapted to be moved from an open position to a closed position over the frame in which closed position it snaps into engagement with the frame to retain the tongue plate in engagement with the frame hooks.

Abstract: A new filter structure is provided for removing particles from the exhaust gas of a large, single piston engine of low RPM, before passing the exhaust gas through a turbine for the purpose of driving a supercharger. The filter is so constructed as to be able to efficiently and reliably perform its filtering function over long periods of time in the high temperature environment of the piston engine exhaust. It comprises a cylindrical shaped housing having at one end longitudinally extending slits distributed around its circumference and at the other end an annular flange for mounting the filter in the exhaust line. The housing encloses a filter element comprising a hexagonal stacked array of cylindrical tubes and said filter element is retained in said housing by means of multiple resilient brackets, each formed in the shape of an open elongated loop so as to conform generally to the contour of the filter element on one hand and the inside of the housing on the other.