Projects A3 Switcher
Cylinder Cocks
3/19/2013
This page
covers the machining of the Cylinder Cocks ... Section 19 pages
116-119
At first I thought that making all the parts for the Cylinder Cocks
would be a very tiring and a long difficult job ... no so. Went smooth
and fairly easy.
Made several new fixtures to lineup the various parts. Of all the parts,
the Cock Body (item 1) and the Cock Plugs (item 2-5) were the most
difficult.
About 40 parts including the sub parts that were Silver Solder together
were made from raw stock, SS is my choice. Some of those had to be done
very carefully otherwise they would melt (well, almost).
Each picture below is a thumbnail ... so it
can be enlarged to get a better view ...
just back arrow to return.
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| Parts of the
Cock Plugs ... so small ... thought I would make a few extra. Don't know
what happened to the lower left one. This gives me 4 spares in case I
over silver solder them! |
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Back to using those little Mitee Bites. Really works great! |
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| A very
usefully fixture ... sets the angle for the 4 types of Arms slots. Just
move the large and small pins to set the angle then cut the slot using
just the X or Y axis. |
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This
fixture is actually about 16" long, there is another clamp at the other
end. Just cut grove, clean and silver solder the tab and your done.
Repeat for the other side without moving the rod! This idea actually
came from another builder ... just can't remember who. |
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| This is the
fixture used to turn the handle. There is a small pin in the hole to
keep the Lever from moving. |
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When I started this part
of the build I was trying to figure out a way to drill the Plug
hole at 45° so it would line up with the Body exit hole. So many
variables. The best way would drill at the assembly. But how? Then it
came to me ... when I was making the the Cock Body ... I messed up
the first 2. But they did fit okay, so I made 2 more. Installed them and
all the other parts then drilled right thru the bottom as shown. Placing
the hole in the Plug at the perfect spot. Removed the drill jig,
installed the real plugs. Perfect alignment! |
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| Well after
all is said and done ... this is how it turned out. |
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When the Lever is up it lets the Steam and water out ... down it's closed.
It's in the up postion. |
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Well
that's about it for the Cylinder Cocks ... came out really nice, smooth
operation. Have to wait though to see how they work.
On to the Feedwater Pump and Lubricator. |
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