An Ingenious Tool for
Page 55
If you've noticed an error in this article please click here to report it so we can fix it.
Tyre Removal
THE requisite strength in the walls of tyres used on heavy commercial vehicles makes it difficult to push inwards the cover in order to remove the detachable flange of the rim ; even more important is the need for obtaining the force necessary to dislodge the tyre from the fixed side of the rim and tyre seat, particularly when it has long remained undisturbed.
To provide a simple tool to perform these tasks with ease and expedition has been the object of Mr. Frank. Smith, Basil Stree+, Rusholme, Manchester. The tool which he is now marketing for this purpose enables a youth, singlehanded, to take off or fit the stiffest cover ; it is known as the Sentinel Tyre Remover and sells for /9 comnlet,
Four bolts are provided for attachment of the frame of the tool to either side of the wheel disc ; at each corner is a screwed bar, "pivotally connected to a ring, the diameter of which is rather greater than that of the rim. A different ring is required for each rim size.
To remove a cover the tool should be applied to the convex side of the wheel disc ; screwing in the four bars presses in the cover away from the detachable flange, which is then taken off. Next,
the tool is taken off and applied to the concave side of the wheel, an anglesectiona, loose ring being previously slipped between the ring of the tool and the tyre. Screwing in the bars forces the loose ring against the tyre bead, pushing it away from the fixed flange and, ultimately, off the wheel.
So much for the process of detaching a tyre; when it is required to install a new cover the sequence of operations is reversed. Obviously, with the leverage at the command of the operator, the physical effort required is small.