Abstract: A carrying device for transporting a cylindrical tank is disclosed which is especially suited for being quickly attached and detached from oxygen and acetylene tanks. A circular collar having an inner diameter greater than the outer diameter of the cylindrical tanks is provided. Three gripping teeth are disposed equidistantly from each other on the inner face of the collar, two of the teeth being stationary and the third being movable from a first position in frictionally gripping engagement with the exterior of the tank around which the collar is placed to a second position not in frictionally gripping engagement therewith. The third gripping tooth is reciprocated between the first and second position by means of a pivotal handle mounted adjacent a projection on the movable tooth, the pivoting of the handle abutting the projection on the tooth to move it forward.