Jump Frog

Name	Type	Comments	Date

Tomy Boy	General	The mainline rail is continuous. When going on the siding the wheels are lifted up and bounce, hop, bang over the rail.	4/15/2012 4:13:31 PM

Harry Edmunds	General	That sure doesn't seem to be an engineering marvel. Lots of wear and tear on equipment.	4/16/2012 11:11:20 AM

Tim Organ	General	I beleive this is a call a run slow frog - in which the the movement into the siding rides up on the wheel flangs anf over the mainline rail - limited to 10 mph - there are also run slow diamonds - which allows the primary route to remain track speed and the slower routes ride up and over at 10mph - see the following liink - http://findarticles.com/p/articles/mi_m0BFW/is_10_100/ai_n6262076/ and http://en.wikipedia.org/wiki/Flange_Bearing_Frog	4/16/2012 2:08:29 PM

Scott Clay	General	These go under many names, run slow ,flange bearing, etc. UP refers to them as jump frogs they're installed on lightly used spurs and industries and are restricted to movements of 10 cars or less, if you look close the closure rail gradually rises up, then transfers the load from the tread to the flange across the running rail then onto the spur track, these save on maintaing a traditional frog as those take quite a beating at times and these are far cheaper than a spring frog	5/4/2014 5:25:53 PM

Jump Frog
This unusual switch has a unique frog point with its own name. Anyone know how this works?
Date: 4/8/2012	Location: Willis, KS Map	Views: 404	Collection Of: Greg Elder
			Author: Greg Elder

Picture Categories: Track		This picture is part of album: UP-MOW

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