| 摘要 |
A base plate for a belt-driven cartridge for recording tape includes a molded or cast base layer with integral mounting bosses and ribs on the upper surface of the base layer for rigidly supporting axles and tape guides in precise perpendicular alignment and selected elevations relative to the lower reference surface of the base layer. The integral ribs extend between raised bosses to enhance torsional and flexural and depressional rigidity of the base layer over the entire area within the peripheral boundaries thereof.
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