Patent ID: 8348793

Claim:
A chain tensioning device connected to a support structure, which controls the tension in a chain, wherein said chain is connected between a first sprocket and a second sprocket, said chain tensioning device comprising: a T shaped base bracket wherein a first end of said T shaped base bracket is fixed to the support structure and wherein a second end of the T shaped base bracket is connected to a first end of a freely pivoted arm via a first end nut and a first end bolt in a manner which allows the freely pivoted arm to pivot around the first end bolt; an arched toggle slider is attached to a second end of said freely pivoted arm via a second end nut and a second end bolt in a manner which allows the arched toggle slider to pivot around the second end bolt; the arched toggle slider projects towards a first side of the freely pivoted arm; adjacent the arched toggle slider and projecting towards a second side of the freely pivoted arm, a connector nut is fixed to the freely pivoted arm; a vertical adjustable tap-bolt extends through the connector nut, the tap-bolt has a first end with a nut head wherein manual rotation of the nut head will adjust the tension in the chain; and a compressible rubber bushing foot is fixed to a second end of the tap bolt, wherein the bushing foot is in compressive contact with the support structure or the T shaped base bracket.