Walschaerts valvegear

[Mike BrettParticipant @mikebrett89695]

Hi

This arrived with a job lot . I think it is part of Walschaerts valve gear. If it is I would like to incorporate it in my engine build. Would the top left lever go to the piston valve , the bottom lever to the crank / eccentric, and the right lever to the cab operating control.

Cheers Mike

[Mike BrettParticipant @mikebrett89695]

Help to identify

[John OlsenParticipant @johnolsen79199]

Hi Mike,

That is in fact a Baker valve gear assembly. It is kind of a cousin to the Walschaerts gear, although very different in the construction. One big advantage is that there is no sliding die block and link, and another is that the gear can be made so that it can be unbolted off the locomotive and replaced quite quickly. If you do a google search on "Baker Valve gear" you will find quite a lot of useful information about the gear, including a Wikipedia entry and some animations. It is an excellent gear so provided it is about the right size you could probably adapt it.

John

[Perko7Participant @perko7]

Another advantage of the Baker gear, if constructed appropriately, is that it is not 'handed' so the same assembly can be used on either the left hand or right hand side of the loco, which made for more economical construction and parts storage.

[Mike BrettParticipant @mikebrett89695]

Many thanks Guys.

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