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

MISCELLANEOUS REPAIRS 147 seat lug where the top tube enters to find the pegs. Centre them and drill out, then saw about 6 in. out of the centre of the tube to facilitate the removal of the broken tube. Place the frame on the brazing hearth and pack the back of the lug to be heated with coke or breeze, direct the flame on to the lug until the brass in the joint melts, then gently twist the end of the tube whilst the flame is still playing on the joint, and if the joint is properly melted it will come out. Remove the frame at once from the hearth, and scrape out the lug with an old file. Serve the other lug in a similar manner, and when cool clean out any brass which may have remained. Cut the new tube exactly to length by measuring the broken parts. Clean the ends of the tube with emery cloth and spring into place, then drill and peg, and re-braze. Care must be taken to heat the part of the lug in which is the broken tube before heating the remainder of the lug, or, when starting to twist and pull out the broken piece, the seat lug and head lug may shift from their proper places, or the head tube or seat tube may bend if these parts are too hot. Also watch that the broken tube just against the lug does not get white hot, or it will be rotten and break off short at the lug instead of coming out. If it appears to be getting too hot, cool it with borax freely applied ; this will keep the tube from getting rotten, and at the same time assist the brass in the joint to flow. Jointing Wooden Rims.—Joints in wooden cycle rims are simply made with good hot glue, and the joint held in a cramp until the glue is set. In remaking the joint, scrape off the old glue and see that all parts of the joint