| 摘要 |
A coin telephone instrument having a serpentine coin path is provided with string grabbers positioned at cusps in the coin path to engage the string of a tethered coin deposited by a fraudulent user. Each string grabber assembly is comprised of a pair of facing and arcuately converging lip surfaces which guide the string toward the surfaces' initial point of convergence. The grabbers, working in tandem, will stop the tethered coin during its descent before it reaches the escrow hopper, trap door and coin steering vane, thereby frustrating the fraudulent attempt. If the fraudulent user pulls back on the string to retrieve the tethered coin, the converging lip surfaces engage the string forcing it past the initial point of convergence and into the path of a sheet metal slit cutter which severs the string tether.
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