Abstract: A biasing device for an exercising machine is provided where one end of the biasing device is removably disposed on a lever arm of the exercising machine and the opposite end of the biasing device is disposed on a fixed support member of the exercising machine. The biasing device provides resistance to the movement of the lever arm in the plane of motion wherein the biasing device comprises at least one elastomeric band and a containing device to provide a bight on the ends of the biasing device for disposing on the respective portions of the machine. The biasing device may also have end members or a support placed within the bights. The biasing device, the containing device and the end members or the support may be initially separate and separable such that in the event of damage to any one of said devices it may readily be replaced with another such elastomeric band.

Abstract: A tensioner for a power transmission belt is provided that is adapted to be operated in an endless path, the tensioner comprising a support for being fixed relative to the belt, a belt engaging member carried by the support and being movable relative thereto. The tensioner has a mechanical spring operatively associated with the support and the belt engaging member for urging the belt engaging member relative to the support and against the belt with a force to tension the belt. The tensioner has a frictional dampening device operatively associated with the support and the belt engaging member to dampen the movement of the belt engaging member relative to the support in at least one direction of movement thereof, the dampening device having a longitudinal axis, the support comprising a shaft having a longitudinal axis and being fixed from movement relative to the belt engaging member.

Abstract: A tensioner for a power transmission belt is provided that is adapted to be operated in an endless path, the tensioner comprising a support for being fixed relative to the belt, a belt engaging means carried by the support and being movable relative thereto. The tensioner has a mechanical spring operatively associated with the support and the belt engaging means for urging the belt engaging means relative to the support and against the belt with a force to tension the belt. The tensioner has a frictional dampening device operatively associated with the support and the belt engaging means to dampen the movement of the belt engaging means relative to the support in at least one direction of movement thereof, tile dampening device having a longitudinal axis, the support comprising a shaft having a longitudinal axis and being fixed from movement relative to the belt engaging means.

Abstract: A biasing means for an exercising machine is provided where one end of the biasing means is removably disposed on a lever arm of the exercising machine and the opposite end of the biasing means is disposed on a fixed support member of the exercising machine. The biasing means provides resistance to the movement of the lever arm in the plane of motion wherein the biasing means comprises at least one elastomeric band and a containing means to provide a bight on the ends of the biasing means for disposing on the respective portions of the machine. The biasing means may also have end members of support means placed within the bights. The biasing means, the containing means and the end members or support means may be initially separate and separable such that in the event of damage to any one of said means it may readily be replaced with another such elastomeric band means.

Abstract: This invention relates to novel constructions of rearward viewing devices consisting of extension arms and mounting attachment devices with convex marine mirrors for use by the operators of most modern watercraft having other than side to side dashboards or metal framed windshields. This invention provides for substantially 180 degree viewing behind the craft by the operator of such aforementioned craft for the purpose of rear vision for safety whether or not towing another craft or person or persons engaged in any water sport such as skiing, boarding, tubing, etc., when the operator is without another person on board as a legal spotter.

Abstract: A portable craftwork device having a rectangular frame for supporting and tensioning sheet materials is provided. The frame has parallel ends and parallel sides, wherein each parallel end comprises a frame and plate, an upright leg, a leg end plate and a leg support. Each leg end plate is hingedly attached to a leg support and the upright leg is rotatably attached to the leg end plate. Each upright leg is further rigidly affixed to a foot. The rectangular frame may be rotated upon the frame leg end plate through an angle of up to 60.degree. for working upon or displaying an artist's or craftspersons craftworks. The legs of the device may be collapsed inwardly and retained against the underside of the rectangular frame for storing of the portable device.