Abstract: A motorcycle jack includes a frame having front and rear cross shafts rotatably supported thereon. Pairs of front and rear legs are secured to opposite ends of the respective front and rear cross shafts for rotation in unison with the shafts. A linkage mechanism interconnects the front and rear shafts for rotation in unison, but in opposite directions so that the frame is raised in response to pivotal movement of the front and rear legs toward one another and is lowered in response to pivotal movement of the front and rear legs away from one another. A power unit is provided for rotating their legs relative to the frame. The cross shafts are preferably formed of a resilient material so that the free left legs tend to spread slightly further apart than the interconnected right legs, thereby tilting the motorcycle slightly to the left for placement onto its kickstand when the jack is lowered.

Abstract: An implement is provided for applying ammonia to the ground including a nurse tank feeding individual converters on each ground-working plow with each converter having an expansion cannister into which the gas is fed at the top and from which liquid is discharged from the bottom through a liquid outlet opening and fed to the ground. A plurality of baffles divide each expansion cannister into a plurality of expansion chambers. The liquid outlet openings of the cannisters are positioned above and adjacent the ground-working lower end portions of the respective ground plows to minimize the travel distance of depressurized liquid ammonia from the outlet openings to the ground. Each cannister is further provided with a vent opening for discharging ammonia vapor to the ground, the size of the vent opening being related to the volume of the cannister such that cold liquid ammonia will be discharged from the liquid outlet opening at approximately 2-4 psi.

Abstract: An implement is provided for applying ammonia to the ground including a nurse tank feeding individual converters on each ground-working plow with each converter having an expansion cannister into which the gas is fed at the top and from which liquid is removed by gravity from the bottom and fed to the ground. A pair of downwardly facing flat baffles include a pair of concentric sleeves therebetween which receive the discharge end of an inlet feeding tube. Below the pair of baffles is a conical baffle having an axial opening and an outlet baffle with the pair of baffles and outlet baffle having downwardly extending peripheral flanges. Spaced apart inverted V-shaped notches are provided in the flange of the outlet baffle to prevent a vacuum at the outlet end of the cannister.