Cycle Repairing and Adjusting
With a Chapter on building a Bicycle from a Set of Parts

TYRE COVER REPAIRING 47 according to the size of the cut. Do not be too sparing with the canvas, but cut it amply large enough to give strength to the damaged part. Clean the surface of the cover where the patch is to go with a clean rag dipped in petrol, etc. Give the place and proofed side of the canvas two good coats of solution, allowing the first to dry before giving the second coat. When nearly dry press the patch op and rub well down, so that it adheres firmly. Then treat the cut on the outside as explained above, sprinkle some french chalk over the parts, and replace the tyre. Weak Places, Bursts, etc., in Covers.—Under this head come such repairs as where the canvas or fabric of the tyre has developed from a neglected cut, and a bulge or enlarged place in the diameter of the tyre has appeared through the fabric giving way partly, and also such repairs as are necessary through the fabric giving way entirely and bursting. In these cases it is quite useless to put on an ordinary patch just a little larger than the burst or weak place, as the patch now has to withstand the whole of the strain in this particular part. It will now be necessary to cut a patch of fabric some 2 in. or 3 in. longer than the burst or weak place and about 1 in. wider than the cover when flattened out, so that the edges of the patch may be brought over the beads or wires of the cover. This is necessary, as it will be seen that when the tyre is inflated, the pressure of the air tube will hold the edges of the patch between it and the rim, thus relieving the solution of much of the strain that would otherwise be the sole support of the cover in this part. The beads