Appeal No. 1998-0331
Application No. 08/297,257
rollers that have a roller axis of rotation which intersects5
an axis of rotation of the spindle carrier.
Independent claim 10 is directed to a bar stock machining
apparatus including a spindle carrier mounted to a base for
indexing portions of bars extending from an end of the carrier
through multiple work positions adjacent one end of the
spindle carrier, a plurality of spindles rotatably supported
by the spindle carrier and two annular roller bearings for
supporting the spindle carrier. The claim further requires
that one of the annular roller bearings includes a plurality
of tapered rollers wherein each tapered roller defines a line
of action extending away perpendicularly from a surface of the
tapered roller to intersect an axis of rotation of the spindle
carrier at a point that is spaced from the end of the spindle
carrier that faces the work positions.
The Acme reference discloses a conventional multiple
spindle bar machine including a generally cylindrical spindle
carrier supporting multiple spindles at angularly spaced
5We call attention to inaccuracies in the appellants'
drawings, specifically, Figs. 6, 12 and 13 show cylindrical
rollers 126, 254 and 290, rather than tapered rollers. See
37 CFR § 1.83(a).
-6-
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007