Appeal No. 2005-0948 Page 11
Application No. 09/922,938
interengageable with dowels and a keyhole clamping device. The bowl turning
attachment has the same cross-sectional shape as the bed, at least as far as the
side sections are concerned, so that the bowl turning attachment can be utilised to
extend the effective length of the bed.
In the embodiment shown in Figures 1-5 of McCormack, a lathe 10 comprises a
headstock base 11, a headstock 12 secured to the base, a bowl turning attachment 13
securable either to the head end of the headstock 11 or to the tail end of a bed, a bed 14
comprising at least one short bed section or, in the alternative, a plurality of short bed
sections secured end to end, and a motor assembly 15 which is provided with a pivotal
mounting 16 by which it is carried from the headstock base 11. If it is required that the
lathe should have a higher or lower center height H above the plane P of the bed section,
the more expensive and complex headstock 12 remains unchanged but a headstock
base of different height may be used. Additionally, or in the alternative, a spacer 17 may
be provided between the headstock base and the headstock.
McCormack's bed section 14 is shown in Figure 1 as a single short bed section but
in normal usage there would be a plurality of sections 14 as shown in Figure 2, the
additional section being marked 14a. The effective bed length can be still further
increased in that the bowl turning attachment 13 when secured to the tail end of the bed
14 provides surfaces which are a continuation of the working surfaces of the bed section
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Last modified: November 3, 2007