Not a lot of progress, what with the cold spell of the last 3 weeks. Confined myself in the warmer environment of the Lounge. Too cold in the workshop.
Have been designing and drawing up the Fuel fittings I require. Nothing 'off the shelf' will suit, so making my own and using a 1950s ATCO Pet Cock as a guide (shown on the right).
Got some Lathe time in over last few days and started turning up a Taper Reamer blank, then a first Pet Cock plug at the same settings. Got to produce several of these so I have a stock.
The taper angle is 7 degrees inclusive . The little levers that screw into the plug are threaded 5/32" Whitworth, so making them the same -
Had to keep to Imperial, not easy to mix metric on these, plus I have been asked to reproduce an old Pet Cock style for a restoration.
Ready to part off the finished plug from the rod and make the next one now.
The reamer blank is next to finish machining the cutting edges, then harden, temper and hone.
Quite pleased really, as the new plug actually fits perfectly in the old tap body, so I got the angle right.
Regards.