Abstract: A lawn tractor including a fuel tank constructed to permit tipping of at least 30.degree. with respect to the horizontal without spilling of gasoline from the tank. The fuel tank includes a bottom wall, side walls and a top wall, the top wall supporting a central filling stem. The top wall and side walls define a pair of air entrapment cavities at the periphery of the fuel tank and located above the base of the filling neck. When the fuel tank is level and filled, air is trapped in the entrapment cavities. If the tank is subsequently tipped, air is permitted to escape from one of the cavities into the filling neck and fuel will flow into that cavity thereby preventing the fuel in the filling neck from being spilled.

Abstract: A folding tiller handle is made in two pieces connected for limited relative longitudinal and pivotal movement, one piece being a permanent part of the basic tiller assembly. A belt tightening idler sheave is associated with a belt drive which provides the motive forde for rotating the tiller tine assembly. A control, which includes two separable rigid rod members, moves the idler sheave into and out of tightening engagement with the drive belt. The rods are joined through a connection which imparts rotary motion from one rod to the other and which also permits relative longitudinal movement therebetween to separate the rods. The rods are associated with respective pieces of the tiller handle so that when the handle is separated or folded, the control connection to the tightening sheave through the rods is interrupted and the drive belt cannot be tightened to establish the tiller drive.

Abstract: A belt drive including a pulley, a belt reeved about the pulley and means for slacking the belt to disengage it from the pulley is provided with a shroud about the pulley which has portions narrowly spaced from the edges of the pulley to capture the slacked belt between the pulley and the shroud, thus to guide the belt for proper engagement with the pulley during clutching, to prevent the slacked belt from coming off of the pulley and to coact with the declutched expanded belt to maintain it out of range of the pulley in the declutched mode. The shroud has a mounting bracket and fastening means for releasably attaching the bracket to the engine block. The fastening means comprises a positioning detent which engages a portion of the engine block and a single point fastener which releasably fastens the bracket to the engine block.

Abstract: A folding tiller handle is made in two pieces connected for limited relative longitudinal and pivotal movement, one piece being a permanent part of the basic tiller assembly. A belt tightening idler sheave is associated with a belt drive which provides the motive force for rotating the tiller tine assembly. A control, which includes two separable rigid rod members, moves the idler sheave into and out of tightening engagement with the drive belt. The rods are joined through a connection which imparts rotary motion from one rod to the other and which also permits relative longitudinal movement therebetween to separate the rods. The rods are associated with respective pieces of the tiller handle so that when the handle is separated or folded, the control connection to the tightening sheave through the rods is interrupted and the drive belt cannot be tightened to establish the tiller drive.