Abstract:
A collapsible and adjustable tripod for support of a camera or other apparatus is disclosed. The tripod includes a central column having three sides, each side having a channel longitudinally formed therein. Three leg assemblies, each comprising a leg member and a brace, unfold to support the tripod and collapse to a closed position within the channel in each side of the central column. A first latch mechanism associated with each leg assembly allows the top of each leg member to be slidable within each channel and lockable in a series of positions within each channel. Each brace is pivotably mounted to the bottom of the central column. A second latch mechanism allows the opposite end of each brace to be slidable along the leg member and lockable in a series of positions on each leg member. A neck telescopically extends from the top of the central column. A third latch mechanism allows the neck to be lockable in a series of positions above the top of the column.
Abstract:
A rolling pin includes a cylindrical working barrel with oppositely extending handles. The handles are contoured with strategically shaped surfaces and indentations configures to comfortably accommodate the shape of the user's hands, thereby alleviating stress and fatigue during protracted use.
Abstract:
The invention provides a furnace for the controllable combustion of thermite. In an exemplary embodiment, the invention comprises a furnace housing having a combustion chamber into which thermite, in the form of rods, wires, or ribbons of encapsulated pellets, may be fed by an automatic feeder. An electric arc within the housing ignites the thermite. Coils embedded in the furnace housing circulate fluids for drawing off the energy product of thermite combustion beyond the furnace housing for utilization. The rate of combustion may be controlled by use of a vented flue, an adjustable feeder, and by cutter edges which snip the thermite to prevent further burning. The furnace housing contains insulation for retaining combustion heat product so that heat retained by the housing may continue to be drawn off by the coils. The invention provides a compact and thermally efficient furnace for diverse energy purposes, such as home heating or producing steam for driving turbine generators.
Abstract:
A folding and adjustable tripod for support of a camera or other apparatus and including a central column having slots extending longitudinally of the column in which the upper end of tripod legs are slidable. The legs are of fixed length and each include a slot along a portion of the length thereof within which one end of an arm is slidably adjustable, the other end of the arm being pivotably attached to the lower portion of the column. The legs are extensible by sliding within the column slots while the angular extent of the legs is adjustable by slidable adjustment of the interconnecting arms.