Disney American
- JBodenmann
- Posts: 3865
- Joined: Sun Oct 26, 2003 1:37 pm
- Location: Tehachapi, California
Re: Disney American
Hello My Friends
Here are some scribbles, just shop notes but they may do. The teflon washer or cup if you prefer, must fit the glass tube and also the recess in the brass housing snugly. The bosses for the top and bottom connection are silver soldered to the square ends and are 1/4" model pipe. The glass shields are double strength glass. Microscope slides would be far too fragile and wouldn't really give any protection. This little sketch is pretty poor so if there are problems reading it I can make a proper drawing.
Jack
Here are some scribbles, just shop notes but they may do. The teflon washer or cup if you prefer, must fit the glass tube and also the recess in the brass housing snugly. The bosses for the top and bottom connection are silver soldered to the square ends and are 1/4" model pipe. The glass shields are double strength glass. Microscope slides would be far too fragile and wouldn't really give any protection. This little sketch is pretty poor so if there are problems reading it I can make a proper drawing.
Jack
Re: Disney American
Thanks Jack, your sketch will do for me. However, what is "double strength glass"? It is a type of glass I'm not familiar with. I asked a couple friends and they are not familiar with it either.
Dave S.
Dave S.
- JBodenmann
- Posts: 3865
- Joined: Sun Oct 26, 2003 1:37 pm
- Location: Tehachapi, California
Re: Disney American
Hello My Friends
Double strength glass is just plain ol' window glass. It's about an eighth of an inch thick. I used it as that's what I had laying around.
Jack
Double strength glass is just plain ol' window glass. It's about an eighth of an inch thick. I used it as that's what I had laying around.
Jack
Re: Disney American
Got it Jack. Thanks!
Dave S.
Dave S.
- JBodenmann
- Posts: 3865
- Joined: Sun Oct 26, 2003 1:37 pm
- Location: Tehachapi, California
Re: Disney American
Here is a bit more concerning check valves. This valve features an O ring as the seat. This O ring has two advantages, first the machining of the seat is very forgiving, and secondly it isn't near as sensitive to contamination as a metal ball on a metal seat. So here is the start of a thread on making one. The top photo shows a completed valve. The second photo down shows a piece of 5/8" free machining brass. Having been center drilled it is having a 7/32" hole drill through. Next a brand new 13/32" end mill is being used to both cut the seat for the poppet and O ring and also the tap drill size for the 7/16"- 40 thread that will hold the cap in place. The bottom photo shows a 1/4" reamer being used to size and finish the hole that the poppet valve will slide up and down in.
- JBodenmann
- Posts: 3865
- Joined: Sun Oct 26, 2003 1:37 pm
- Location: Tehachapi, California
Re: Disney American
Here in the top photo we have the valve body being turned down a bit, and then in the second photo a 7/16"-40 tap is being used to cut the thread for the cap. And then in the third photo the body is being parted off. The bottom photo shows the start of the cap. It is being turned down to 7/16"
Now that- JBodenmann
- Posts: 3865
- Joined: Sun Oct 26, 2003 1:37 pm
- Location: Tehachapi, California
Re: Disney American
See you in the funny pages…
Jack
- JBodenmann
- Posts: 3865
- Joined: Sun Oct 26, 2003 1:37 pm
- Location: Tehachapi, California
- JBodenmann
- Posts: 3865
- Joined: Sun Oct 26, 2003 1:37 pm
- Location: Tehachapi, California
Re: Disney American
Jack
Re: Disney American
All I can say is WOW. Beautiful
Re: Disney American
Thanks for the update Jack!
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- Posts: 302
- Joined: Mon Jan 21, 2013 8:35 am
- Location: Pittsburgh, PA
Re: Disney American
Hello Jack. I need to make some check valves and snifter valves from my shay. I'm curious on "The rest of the story" about your check valve design.Next time we will finish up the check valve with something new added that it only took me thirty years to figure out. Sometimes that little light bulb in my brain comes on and I think to myself, that's so simple why didn't I think of that before! Oh well, even a blind squirrel finds an acorn now and then!