Assertion: seesaw's member | /r/HasAspect | bolt
Facets:
Source sentences:
text: Two vertical members 37, 37a suitably fixed to 33 the forward ends of members 34, 34a have a bolt 39 extending through the upper portions thereof and passing through the lowermost link of a chain 13 which is connected to the apex of the upper frame 8 by means of eyebolt 12.