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 Post subject: Ever disassemble a Nathan MFG Co. sight glass?
PostPosted: Sat Sep 27, 2014 5:57 pm 

Joined: Sat Jan 18, 2014 11:59 pm
Posts: 7
I'm looking for a source that can supply the two (dissimilar) gaskets to form the seal at the top and bottom nuts of a Nathan water gauge.

Unfortunately, I don't have much information about the unit other than the patent date: Aug. 19th 1913.
Height of the body is 13 1/2" which would mean the length of the glass should be 12".

We have an upcoming photographers special out at Exporail, so we're hoping to find a solution that would get us running by next weekend (go big or go home, right?!).

If anyone has gaskets they're willing to sell, or in a pinch a diagram which could be used to make new ones, the help would be much appreciated.


Kyle Irving
Member, Exporail steam crew


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Last edited by cityzoo on Sat Sep 27, 2014 7:18 pm, edited 1 time in total.
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 Post subject: Re: Ever disassembled a Nathan MFG Co. sight glass?
PostPosted: Sat Sep 27, 2014 5:59 pm 

Joined: Sun Aug 22, 2004 7:19 am
Posts: 6394
Location: southeastern USA
I'd be more concerned with the glass itself.

Try Ernst - for a new glass and gaskets.

dave

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“God, the beautiful racket of it all: the sighing and hissing, the rattle and clack of the cars over the rails. These were the sounds that made America the greatest country on earth." Jonathan Evison


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 Post subject: Re: Ever disassembled a Nathan MFG Co. sight glass?
PostPosted: Sat Sep 27, 2014 6:20 pm 

Joined: Sat Jan 18, 2014 11:59 pm
Posts: 7
Thanks for the tip!

I'll check with them on Monday. The glass I'm not worried about. The gaskets don't seem to to be the usual flat. Mortal remains were all sorts of shapes, and the bottom fitting would suggest the need for a stepped gasket, but I was hoping to check with someone who knows Nathans before concluding that.


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 Post subject: Re: Ever disassemble a Nathan MFG Co. sight glass?
PostPosted: Sat Sep 27, 2014 7:56 pm 

Joined: Wed Feb 02, 2011 9:40 pm
Posts: 840
If you are under FRA, and if that's a tubular glass, those have to be replaced at presctribed intervals.


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 Post subject: Re: Ever disassemble a Nathan MFG Co. sight glass?
PostPosted: Sat Sep 27, 2014 8:28 pm 

Joined: Sun Aug 22, 2004 11:06 am
Posts: 539
Location: NE PA
That style of water gage was also known as a Delco water gage. I found a picture of it in the 1922 Locomotive Cyclopedia, Image is of a similar type of glass, looks like they just used a soft packing material and let it form to shape.

Mike Tillger


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Last edited by Mike Tillger on Sat Sep 27, 2014 9:39 pm, edited 1 time in total.
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 Post subject: Re: Ever disassemble a Nathan MFG Co. sight glass?
PostPosted: Sat Sep 27, 2014 9:19 pm 

Joined: Sun Aug 22, 2004 7:19 am
Posts: 6394
Location: southeastern USA
Even if you're insular, it's good safe practice to change them regularly. No fun being in the cab when one shatters.

You might have old rope packings squished together instead of gaskets.

dave

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“God, the beautiful racket of it all: the sighing and hissing, the rattle and clack of the cars over the rails. These were the sounds that made America the greatest country on earth." Jonathan Evison


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 Post subject: Re: Ever disassemble a Nathan MFG Co. sight glass?
PostPosted: Sat Sep 27, 2014 9:46 pm 

Joined: Sun Aug 22, 2004 11:06 am
Posts: 539
Location: NE PA
One other thing, check the threads on the top nut, many Nathans were left hand thread.
Mike


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 Post subject: Re: Ever disassemble a Nathan MFG Co. sight glass?
PostPosted: Sun Sep 28, 2014 8:43 am 

Joined: Sat Jan 18, 2014 11:59 pm
Posts: 7
Thanks guys, I'll let you know how we end up fixing it.


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