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  • Topic: 7 1/2 inch gauge Pumps on a Little Engines Crab

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    • January 24, 2018 7:48 AM EST
      • Carlyle, Illinois
         
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      7 1/2 inch gauge Pumps on a Little Engines Crab

      Doc Tom and I were talking on his postings of the building of his On30 logging layout. 

      .

      http://largescalecentral.com/forums/topic/27085/the-quot-original-quot-kittom-lumber-company-part-2?page=1

      .

      "Doc,

      I've got some pump pictures of the "Crab" and will get them loaded this evening. This "Crab" is a great learning tool for me as it has 3 pumps on the engine and then I've added a 4th pump, a hand pump, on the riding car. Lots to learn, but very enjoyable."

      .

      I didn't want to take his space to disgust these pumps, so started a thread to post here.  Sorry for the delay, but once again had to re-learn the posting of pictures.  And of course had to use Jan's site to post the pictures.

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      Here is the left side of the "Crab"

      http://largescalecentral.com/filesharing/file/view/6636/crab-left-side-jpg

      .

      Here is the right side of the "Crab"

      http://largescalecentral.com/filesharing/file/view/6637/crab-right-side-jpg

       

       

       

       

       

      This post was edited by Jan Golding at January 24, 2018 8:09 AM EST
    • January 24, 2018 7:54 AM EST
      • West Grove, Pennsylvania
         
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      Jan Golding said:

      Doc Tom and I were talking on his postings of the building of his On30 logging layout. 

      .

      .

      I didn't want to take his space to disgust these pumps, so started a thread to post here.  Sorry for the delay, but once again had to re-learn the posting of pictures.  And of course had to use Jan's site to post the pictures.

      Okay, so where are the pitchers................................

      ____________________________________

      "Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity." --Martin Luther King Jr

    • January 24, 2018 8:00 AM EST
      • Carlyle, Illinois
         
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      Sheesh! working on it. 

    • January 24, 2018 8:19 AM EST
      • West Grove, Pennsylvania
         
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      If you can, at least, post the page the picture is on, that way I can grab it and post it for you (if you know what I mean). 

      ____________________________________

      "Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity." --Martin Luther King Jr

    • January 24, 2018 8:23 AM EST

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      Ken Brunt said:

      If you can, at least, post the page the picture is on, that way I can grab it and post it for you (if you know what I mean). 

      http://www.largescalecentral.com/filesharing/folder/view/355/inch-and-a-half-pictures

       

       

    • January 24, 2018 8:23 AM EST

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    • January 24, 2018 8:24 AM EST

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    • January 24, 2018 8:30 AM EST
      • Carlyle, Illinois
         
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      Thank you Rooster, glad to see you are up this early.  I know crowing at sunrise. 

      Headed out, will talk about the pictures and pumps tonight.

    • January 24, 2018 8:31 AM EST
      • Candlewood Valley, Connecticut
         
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      Cool little loco.  This is 7.5" gauge, yes?  What scale is that representing?

      ____________________________________

      www.cvsry.com www.cvsry.com

    • January 24, 2018 10:09 AM EST
      • West Grove, Pennsylvania
         
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      " Rooster " said:

      Looks like a plumber's nightmare................ 

       

      ____________________________________

      "Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity." --Martin Luther King Jr

    • January 24, 2018 6:50 PM EST
      • Southern Illinois
         
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      Hey Jon,

      I believe it is 1.5 inch.  The first one I saw, seemed very strange to me.  But, then Jan and I visited the B&O Railroad Museum with Andy and Jane Clarke and there it was sitting in the round house.  It is a "Little Engines" product and was built by a gentleman in Indiana from a series of articles in Live Steam magazine.  We took possession of it on July 4th, 2016 and that is why it is named "Liberty".  It is numbered "101" because it is my first class in my steam "higher education".  And it has been an education, believe me.

      Ken,

      Thanks for helping me get these pictures posted and good to talk to you this morning.  I also appreciate "Rooster's" help, getting them to show up.  Yes, it is a plumbers nightmare and for the first couple of months, it was a lot to absorb.  Now, I think I can say I know what every pipe and valve does.  Maybe, we'll see.

      Let's be simple and start on the other side, the right side, right being looking from the rear and the engineer's view.  Which is actually a miss statement, because on the full size prototype, the fireman was in the back and the engineer was in the front where the 2 gallon water tank is located on the 1.5 inch model.

      The first pump of the 3 on this engine is the "Ram Pump" that is polished bronze and located right above the red piston.  It is driven by the piston rod.  And the rod of the "Rod Pump" is the polished piece of steel under the 1 and the 0.  It is supplied with water from the brass water tank inside the front of the engine located behind the name "Liberty".  It pushes the water toward the boiler or returns it to the water tank depending on what way valves are turned.  The water is sucked past a check valve in to the chamber of the "Rod Pump" and since it can't return because of the same check valve it moves through the tube toward the boiler or

      returned to the water tank.  If you can follow the copper tubing, you can see where it will enter the boiler, wrapped in wood, through another check valve that prevents the steam pressure of the boiler from escaping down the copper tube toward the pump or return to the water tank through the tube on the roof right above the "b" of "Liberty". 

      .

      Is any of this making sense?  Its actually good for me to write and analyze how this stuff works.    

      This post was edited by Ric Golding at January 24, 2018 7:48 PM EST
    • January 24, 2018 7:38 PM EST
      • Candlewood Valley, Connecticut
         
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      Ya know; I really knew it was a lot smaller than 7.5 - posted that before coffee.     Wha'z zat on the end of the stack - bubble wrap?  Vertical boiler is just too cool.

      ____________________________________

      www.cvsry.com www.cvsry.com

    • January 24, 2018 7:54 PM EST
      • Southern Illinois
         
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      This is the gauge and scale thing.  The gauge is 7.5 inches between the rail and the scale is 1.5 inches per foot or 1/8th scale.  Seems to be about 3 scales on 7.5 inch gauge track.  1.5, 2.5 or 3 inch.  Actually, probably more.  Not as organized as number 1 gauge track.  Yeah right?  

       

      The "bubble wrap" is part of a plastic water bottle to keep crap out of the stack.  You learn quickly to not put it on a hot engine.

      This post was edited by Ric Golding at January 24, 2018 7:56 PM EST
    • January 24, 2018 8:16 PM EST
      • Southern Illinois
         
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      Okay the 2nd pump is the steam piston pump.  Its also on the right side of the "Crab"  It gets water from the water tank through the brass pipe coming out low on the water tank.  It is a single cylinder steam pump.  Steam comes through a gate valve, that controls the steam's flow from the back of the boiler and runs down the right side, shrouded or insulated in nylon line and represents what used to be wrapped in asbestos.  The little brass pot with the "T" screw on lid is how steam oil is injected in to the steam, before entering the pump.  The steam pump injects water past the front check valve and into the boiler against the steam pressure and also is half way up the wood clad boiler, but in front of the "Ram Pump" check valve.

      This post was edited by Ric Golding at January 24, 2018 8:22 PM EST
    • January 24, 2018 9:07 PM EST

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      Rooster has reported Ric Golding to the moderator: Pump

      Has been used numerous times in his post !

    • January 25, 2018 3:57 AM EST
      • West Grove, Pennsylvania
         
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      Interesting! 

      I guess now you have to join the Pipefitters union, Local 905...............

      (I did find the "Crab" file in your Freight Shed, but it said we weren't friends, so I couldn't access them.)

      ____________________________________

      "Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity." --Martin Luther King Jr

    • January 25, 2018 7:15 AM EST
      • Southern Illinois
         
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      " Rooster " said:

      Rooster has reported Ric Golding to the moderator: Pump

      Has been used numerous times in his post !

      I not only used the word "pump" correctly in a sentence.  I also used the words "Ram Pump", "Steam Driven Pumps" and many other words.  Kinda like bugs in a chicken coup, lots of variety and something to just step on, or to Rooster its a delicacy. 

      Enjoy the ride! 

    • January 25, 2018 7:22 AM EST
      • Southern Illinois
         
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      Ken Brunt said:

      Interesting! 

      I guess now you have to join the Pipefitters union, Local 905...............

      (I did find the "Crab" file in your Freight Shed, but it said we weren't friends, so I couldn't access them.)

      I agree, but I hope the give me the apprentice discount.  I've had to learn, re-learn and develop new and old techniques in almost everything I do.  Things at Home Depot, Loew's and Ace Hardware, that I just ignored are now must have stuff.  Resolve one problem and create 2 more.  Lots learned and lots to learn.  Great fun!

      .

      Its all good!

    • January 25, 2018 8:45 AM EST
      • West Grove, Pennsylvania
         
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      When it involves pipes and plumbing, I figured that's why God made plumbers. 

      ____________________________________

      "Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity." --Martin Luther King Jr

    • January 25, 2018 7:32 PM EST
      • Southern Illinois
         
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      Ken Brunt said:

      When it involves pipes and plumbing, I figured that's why God made plumbers. 

      True, but even I can figure out righty tighty, lefty lousy and Home Depot, Lowe's and Ace Hardware have pieces of brass.  plus steam quality pipe dope and teflon tape.  Now they always had it, but now its a lot more interesting.

       

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