Abstract: In one embodiment, a method includes contacting a phosphotriester and a halogen salt in a polar solvent. In another embodiment, a method for dealkylating tributylphosphate includes contacting tributylphosphate and a halogen salt in a polar solvent.

Abstract: A continuous feed bubble forming assembly having a wand, an enclosed feed and supply container attached thereto and a bubble forming ring(s) positioned beneath the container wherein an opening(s) in the container continually gravity feed a supply of solution to the ring(s) so long as solution remains in the container so, in effect, to produce “endless bubbles”.

Abstract: A bubble toy that minimizes spillage has a retaining mechanism disposed below a bubble ring or rings on a bubble wand to prevent the wand from being lifted completely out of the container. A solution feed section provided above the bubble ring or rings has a plurality of channels arranged to feed bubble solution downwardly to the bubble ring or rings. An articulating joint may be provided between each of the bubble rings by which the bubble rings are able fold or collapse within the container, thereby allowing use of a longer wand. A bubble wand is provided with a spill-resistant container on an end opposite the bubble ring or rings.

Abstract: A bubble toy that minimizes spillage has a retaining mechanism disposed below a bubble ring or rings on a bubble wand to prevent the wand from being lifted completely out of the container. A solution feed section provided above the bubble ring or rings has a plurality of channels arranged to feed bubble solution downwardly to the bubble ring or rings. An articulating joint may be provided between each of the bubble rings by which the bubble rings are able fold or collapse within the container, thereby allowing use of a longer wand. A bubble wand is provided with a spill-resistant container on an end opposite the bubble ring or rings.

Abstract: A walk-behind, self-propelled lawn mower having a variable speed drive transmission responsive to operator-applied forces. The transmission includes an input gear operatively connected to the engine for constant rotation during operation, an intermediate gear meshed with the input gear, and a driving bevel gear meshed with a drive shaft bevel gear. A face of the driving bevel gear is biased away from a face of the intermediate gear. A clutching surface is interposed between the gear faces for coupling the intermediate gear and the driving bevel gear in driving engagement. An actuator lever is controllably connected to the intermediate gear and can be adjusted to vary the sensitivity of the drive transmission to operator-applied forces.

Abstract: A walk-behind, self-propelled lawn mower having a variable speed drive transmission responsive to operator applied forces. The drive transmission is mounted on a frame and comprises gearing operatively connected to an engine and a drive shaft for transmitting forces from the engine to the shaft. A clutching structure including a frictional coupling is coactable with an element of the gearing selectively to provide force transmission to the drive shaft. An actuator structure is controllably connected to the clutching structure and responsive to operator applied forces for controlling the speed at which the lawn mower traverses along a ground surface and to vary the speed proportionally to operator applied forces. The lawn mower also includes a handle pivotally connected to the frame and operatively connected to the actuator structure. The handle is adapted to pivot in response to the operator applied forces.