January 2, 2007

AIR-POWERED SPEEDOMETER (Dec, 1958)

Filed under: Toys and Games — @ 9:50 am
Source: Mechanix Illustrated ( More articles from this issue )
Issue: Dec, 1958
| Buy on Ebay

AIR-POWERED SPEEDOMETER
for bikes made by the Sinko Mfg. and Tool Co., Chicago sells for $1.89. As bike moves, air enters intake, deflects small fan blade on a spring-mounted needle.

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