[SEL] leather cups

[Alan]

Thank you, Francis.
I knew I had saved every pair of leather boots I have ever had for some good reason,,,,
I have a large box of them downstairs. I just couldn't throw away all that leather.
 
Alan in Michigan

--- On Fri, 7/6/12, FRM8198 at aol.com <FRM8198 at aol.com> wrote:


From: FRM8198 at aol.com <FRM8198 at aol.com>
Subject: Re: [SEL] leather cups
To: sel at lists.stationary-engine.com
Date: Friday, July 6, 2012, 11:19 PM



My father used the following method  to make  new leathers for water pumps. 
I have made seals for a hydraulic jack using  this technique.   
Take the upper part of an old leather boot.  Then cut out circle of leather 
(the diameter of the cup plus its  length).  Next take a scrap/piece of  
wood and bore a hole which have a diameter of the cup plus twice the 
thickness  of the leather.  Then make a wooden  peg the diameter of the cup.  Soak  
the leather in water for about an hour.  Center the pre-cut circular piece  
of leather over hole in the wood scrap and force the peg on top of leather  
into the hole.  Let dry.  Now you will have a pre-formed leather  cup which 
will fit into your oil can pump.   It may be necessary cut/punch a hole in  
the pre-formed leather for the pump rod.  The oil (in the can) will  cause 
to leather to expand and make a good seal. 
Francis Maciel 
Santa Maria, CA


In a message dated 7/6/2012 7:18:01 P.M. Pacific Daylight Time,  
andyglines at hotmail.com writes:

Does  anyone know how to make new ones.  
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