US PATENT SUBCLASS 212 / 226
.~.~ Having vertical support remote from pivot (i.e., swinging bridge)

Current as of: June, 1999
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212 /   HD   TRAVERSING HOISTS

223  DF  HAVING HORIZONTALLY SWINGING BOOM OR BRIDGE {9}
225  DF  .~ Having trolley thereon {3}
226.~.~ Having vertical support remote from pivot (i.e., swinging bridge)

DEFINITION

Classification: 212/226

Having vertical support remote from pivot (i.e., swinging bridge):

(under subclass 225) Apparatus including a bridge* pivotally mounted for horizontally swinging movement at one of the two spaced supporting points, and wherein the other supporting point either (a) rides over a horizontally extending vertical support, or (b) comprises a leg fixed to the bridge at one end and is provided with means to facilitate its movement over a surface or guideway at the other end.

SEE OR SEARCH THIS CLASS, SUBCLASS:

312+, for a traveling bridge which follows a circular path.