| 摘要 |
<p>A modular control panel [10, 11] for controlling the switching operations in a miniature- or model-railway- line has grooves [13] which reproduce the railway tracks, contacts [14, 15] being applied to the groove bottoms in the neighborhood of railway crossings, and is improved by the provision of a rotatable direction indicator (16, 17, 18) placed at every line intersection so as to mask either branch (13) of a line bifurcation with one of its halves (18), the other half of said indicator (16) defines the correct direction.</p> |
