Custom cylinder cocks

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Oktrainboys
Posts: 118
Joined: Sun Jul 29, 2012 12:14 pm
Location: OKC, OK

Custom cylinder cocks

Post by Oktrainboys » Sun Aug 19, 2018 3:27 pm

Expert machinist PLEASE help!!
I am in need of replicating 4 times an existing steam operated cylinder cock from brass stock. I would mail you the one cock that I still have. Price for machine work is negotiable. These are beautiful, ornate globes. Of the original 4, two were “lost” and one is damaged. I have only the fourth one remaining perfectly and completely intact. Can you PLEASE help?? Thank you for any consideration. Tintern Abbey currently has 2.5” scale RMI cocks on her and I don’t like them. Mike in OKC.
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Last edited by Oktrainboys on Sun Aug 19, 2018 3:51 pm, edited 2 times in total.

Oktrainboys
Posts: 118
Joined: Sun Jul 29, 2012 12:14 pm
Location: OKC, OK

Re: Custom cylinder cocks

Post by Oktrainboys » Sun Aug 19, 2018 3:31 pm

....
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hoppercar
Posts: 244
Joined: Sun Jul 22, 2018 4:09 pm

Re: Custom cylinder cocks

Post by hoppercar » Sat Sep 15, 2018 11:05 am

Do these have the tapered plugs in them ?

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Fred_V
Posts: 4358
Joined: Sun Jan 12, 2003 3:26 pm

Re: Custom cylinder cocks

Post by Fred_V » Sun Sep 16, 2018 7:40 am

I took on the task of making these for Mike. They are finished now. Interesting design. There is a shuttle behind that small hex plug. Control steam pushes it outward to block drillings to the outlet and inlet. Release control steam and cyl pressure pushes the shuttle back allowing them to vent out.

The body is made in 2 parts. the cross piece is silver soldered into the body and then the holes are drilled to connect to the inlet and outlet.
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drain5.JPG
Fred V
Pensacola, Fl.

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NP317
Posts: 2063
Joined: Tue Jun 24, 2014 2:57 pm
Location: Northern Oregon

Re: Custom cylinder cocks

Post by NP317 » Sun Sep 16, 2018 10:24 am

Interesting design,
and nice work.
~RN

Oktrainboys
Posts: 118
Joined: Sun Jul 29, 2012 12:14 pm
Location: OKC, OK

Re: Custom cylinder cocks

Post by Oktrainboys » Sun Sep 16, 2018 10:48 am

Yes!! Fred is amazing! Tintern Abbey being such an ornate locomotive needed his most amazing skill and vision... THANK YOU Fred!!

Glenn Brooks
Posts: 1867
Joined: Mon Nov 10, 2014 1:39 pm
Location: Woodinville, Washington

Re: Custom cylinder cocks

Post by Glenn Brooks » Sun Sep 16, 2018 2:41 pm

Nice work. Work of art actually!

Glenn
Moderator - Grand Scale Forum

Motive power : 1902 A.S.Campbell 4-4-0 American - 12 5/8" gauge, 1955 Ottaway 4-4-0 American 12" gauge

Ahaha, Retirement: the good life - drifting endlessly on a Sea of projects....

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Greg_Lewis
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Location: Fresno, CA

Re: Custom cylinder cocks

Post by Greg_Lewis » Sun Sep 16, 2018 9:03 pm

Any chance of posting a sketch showing the internal ports? Thx.
Greg Lewis, Prop.
Eyeball Engineering — Home of the dull toolbit.
Our motto: "That looks about right."
Celebrating 30 years of turning perfectly good metal into bits of useless scrap.

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Fred_V
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Re: Custom cylinder cocks

Post by Fred_V » Mon Sep 17, 2018 7:21 am

ports marked with red arrows. I suppose it is possible that a little wisp of steam can drip from the outlet.
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Fred V
Pensacola, Fl.

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Greg_Lewis
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Location: Fresno, CA

Re: Custom cylinder cocks

Post by Greg_Lewis » Mon Sep 17, 2018 8:34 am

THANKS Fred!
Greg Lewis, Prop.
Eyeball Engineering — Home of the dull toolbit.
Our motto: "That looks about right."
Celebrating 30 years of turning perfectly good metal into bits of useless scrap.

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