Douglas W. Hege

TL;DR: A pedal drive mechanism for a rider-powered vehicle is described in this paper, where the pedaling forces exerted by a rider on the pedals are transmitted through flexible tension members on each side of the bicycle anchored either to first attachment points intermediate the ends of the lever arm or to second attachment points on the frame above the lever arms.

TL;DR: A pedal drive mechanism for a bicycle is described in this article, where flexible tension members on each side of the bicycle are anchored either to first attachment points intermediate the ends of the lever arms or to second attachment points on the frame above the lever arm and leading around pulleys mounted at the other of the first and second points.

TL;DR: In this paper, an improved method for mixing a second material into a first fluid material is presented, which includes means for directing a portion of the fluid from the container inward for mixing with the second material as it enters the center of the impeller and means for dispersion in the fluid in the container.

TL;DR: In this article, the inert carrier acts as an expanded matrix to support and disperse such products to facilitate carrying out the indicated operating steps, such as mixing, agglomerating, coating, dyeing, reorientating, crystallizing, precipitating, reacting and similar types of operations.

TL;DR: In this paper, a rotating centrifugal impeller mounted in a lower chamber of a closed reactor vessel draws the materials to be mixed from an upper chamber through a short central inlet and mixes them with high energy while impelling them between spaced blades extending outward from the eye of the impeller to a high pressure region at its circumference.