Petrol tank

The tank brackets in position.



















This photos shows a hand press modified to press dummy rivet heads on strips of brass to solder onto the copper tube to give an impression of a lap seam on the tank. The tube is hard copper which will be soft soldered so that the tank will be resistant to dents.





The ends of the tank have been rolled in a jenny made for this operation to form a ledge on the inside of the tube. Discs of copper were placed on these and soldered to form the tank ends. The rolled ends simulate the rolled ends of the prototype tank.






The prototype tank was made with two sheets of steel with two riveted seams.

Petrol tank

This is a mandrel to face off the 100 mm copper tube ,it is a 20 mm steel bar centred both ends supported by the lathe centres.
A disc has been loctited onto the bar
(next to the tail stock).The disc has been turned to the inner diameter of the tube.
A steel ring has been bored to fit over the outside of the tube.





The tube is fitted over the mandrel, supported
by the disc at the tailstock and driven by the
inside of the tube being supported by the ring.







This is the tool path for the webs of the tank
supportsThese webs set the position of the
tank and were used as the basis to braze the
additional parts that make up the mounts.








The two mounts fabricated and in position