| 摘要 |
A slide projector system includes a projector and a removable slide cartridge which encloses an endless belt for transporting slides along a generally horizontal pathway. The removable cartridge, when loaded into the projector, advances slides to a viewing gate for projection onto a screen or the like, wherein the viewing gate is associated with an access port in the cartridge to permit direct loading and removal of the slides thereby facilitating the instantaneous projection and viewing of the slides as they are loaded. In one preferred form, the slides are carried along an oblong pathway for presentation at a single viewing gate whereat a drive spindle and a slide catcher wheel cooperate to individually hold the slides. In another preferred form, an expandable endless belt carries the slides along a generally Y-shaped pathway for presentation at either of two separate viewing gates. This expandable belt comprises alternating connected links of slide holders and track-guided expandable webs which are driven through the cartridge by two independently actuated drive spindles.
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