Appeal No. 2004-2131 Page 4
Application No. 10/016,719
1. Device for balancing of radial eccentricity of a spindle drive (1) to avoid
blocking of the spindle drive during lifting movement of a platform (2),
comprising:
a platform for lifting objects (S) said platform being mounted by several
bearing devices (L1; L2; L3; L4) respectively arranged on several axiparallel
spindles (G1; G2; G3; G4), lifted axially along the spindles together, said bearing
devices (L1; L2; L3; L4) having respective radial bearing clearances (F1; F2) in a
polygonal arrangement; and
said bearing devices (L1; L2; L3; L4) being of a low-friction type, and
arranged with radial bearing clearance (F1; F2) to balance the radial eccentricity
of the rotating threaded spindle so that a relative radial movement of the rotating
spindles to platform (2) with limited friction force is possible.
7. Device for balancing of radial eccentricity of a spindle drive (1) in order to
avoid blocking of the spindle drive during lifting of a platform (2), comprising:
a platform for lifting objects (S) in a machine, said platform being mounted
by several bearing devices (L1; L2; L3; L4) respectively arranged on several
axiparallel spindles (G1; G2; G3; G4), lifted together with the bearing devices
axially along the spindles, said bearing devices (L1; L2; L3; L4) each having an
annular ball bearing (3) arranged concentrically around the spindles (G1; G2;
G3; G4) by which a radial bearing clearance (F1; F2) can be produced between
said platform (2) and the spindles to balance the threaded spindle eccentricity in
low-friction fashion.
Bayne's invention relates in general to an apparatus for dispensing flat objects,
said apparatus being particularly adapted for dispensing magnetic tickets. As shown in
Figures 2 and 3, an elevator 22 which includes a platen 25 moves vertically in an
opening 21 of ticket container 20 in order to support and locate a stack of tickets 26 so
that the uppermost one of the tickets is in a position for dispensing. The elevator is
powered by a reversible electric motor 27 which is mounted on the container 20. The
motor has an output screw 30 which is threaded through floating nut 31 loosely
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