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Knuckle Coupler
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<P mce_keep="true">[quote user="Modelcar"]<FONT size=4>One remaining question I have is: I'm having difficulty seeing why there isn't excess force on the rotating knuckle pin......Surely, the rotating pin is not able to take all the tension applied thru the coupler.....Surely, it just can't. Something must be {by design, over center to take the force, and not the pin}.</FONT>[/quote]</P> <P mce_keep="true"> </P> <P class=MsoNormal style="MARGIN: 0in 0in 0pt"><FONT face=verdana,geneva>Quentin,</FONT></P> <P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"><FONT face=verdana,geneva size=2></FONT></SPAN> </P> <P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"><FONT face=verdana,geneva size=2>See my previous post.<SPAN style="mso-spacerun: yes"> </SPAN>The knuckle pin does nothing except keep the knuckle from falling out when the coupler is uncoupled and the knuckle is open.<SPAN style="mso-spacerun: yes"> </SPAN>Those pins can be pulled out of every coupler in a train and thrown away, and the train can continue without them. <SPAN style="mso-spacerun: yes"> </SPAN>That knuckle pivot pin is not involved in the train pulling force. </FONT></SPAN></P>
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