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  • General discussion about locomotives, rolling stock, and equipment
General discussion about locomotives, rolling stock, and equipment

Moderator: John_Perkowski

 #1236888  by FarmallBob
 
It's the pump portion of a flange lubricator.

Each wheel rolling past depresses the button. This in turn pumps a bit of lubricant to distribution blocks on the gage sides of both rails.

...FB