Abstract: A rotary valve system mounted to an internal combustion engines and method of operating the system primarily comprises a rotary valve mounted within a valve sleeve, which is in turn mounted within a longitudinal bore extending through an intake and exhaust manifold. Controllers vary the rotational and axial position of the valve sleeve, which provides the capability of adjusting the amount of fuel mixture entering the combustion chambers of the engine and the timing of the intake of such mixture. The method of operation includes in taking fuel mixture into, and evacuating exhaust gas from, an internal combustion engine, wherein fuel mixture flows into the manifold, is directed across the valve sleeve, through the rotary valve, across the sleeve, and into a combustion chamber. After combustion of the fuel mixture, the exhaust gases are directed from the combustion chamber through the sleeve, through the rotary valve and into an exhaust chamber.

Abstract: The anti-jackknife device is installable on a tractor-trailer combination in which the tractor and trailer are detachably connected by a fifth wheel assemblage without any modification in the fifth wheel assemblage. The device includes a stop lug mounted on the underside of the trailer in fixed lateral and endwise position relative thereto, but for movement upwardly and downwardly into and out of engagement, respectively, with a limit stop mounted in fixed position on the tractor. When the lug and stop are interengaged, they permit free relative rotation of the tractor and trailer about the turning axis of the fifth wheel within certain limits extending a few degrees in each direction beyond a median position wherein the tractor and trailer are aligned for straight line travel.

Abstract: A power driven valve stroke adjusting device, remotely controlled, is operable for adjusting the length of stroke of a spring returned poppet valve of a valve-in-head internal combustion engine in which the valve is driven by an associated valve operating rocker on the head, operated by a push rod which, in turn, is driven by a tappet which is lineally reciprocable axially and concurrently rotatable about its axis. The device is carried on the rocker and is operable to adjust the valve stroke for opening the valve by the rocker from starting position of the valve to a long-stroke open position or to a short-stroke open position, selectively. The adjustment is effected during engine operation and without any hindrance to tappet rotation and without any change in the timing relation between the tappet and its operating cam, all while maintaining a zero or fixed preselected clearance between the rod and the rocker and between the rod and the tappet in the starting position of the valve.

Abstract: A power driven remote control device is operable from a location remote from the engine for adjusting the length of stroke of one or more valves of an internal combustion engine during engine operation and while maintaining the valving cycle substantially unchanged. The strokes of all of the valves of the engine can be adjusted equal or preselected amounts concurrently. The control is arranged so that it can be installed on a conventional engine to provide an operating combination therewith without substantial modification of the existing engine structure. In this combination, the control utilizes fluid pressure generated by the engine, such as the oil pressure from the engine oil pump, for changing the length of valve strokes while isolating the valves from any rocking that might otherwise be imposed by the valve driving cam or tappet.