File:Johnson-bar-brake-white-transit-bus.jpg
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Summary
| Description |
English: Johnson bar for a parking/emergency brake in a White transit bus originally operated by San Francisco Muni. The front of the bus is to the right; the brake is operated by squeezing the grip and pulling back on the lever, then continue to pull back and release the grip; the lever is currently in the rearmost position, corresponding to brake full on. The brake is released by pulling back then squeezing the grip to release the brake, the pushing the lever forward. Under the floor is a pivot for the lever and an arched "rack" with teeth; on the lever is a movable pawl that engages the rack. Squeezing the grip lifts the pawl to let the lever move freely, releasing the grip causes a spring to move the pawl to engage the rack and hold the lever from moving. The lever is just to the left of the driver, the driver's seat is removed in this picture. |
| Date | |
| Source | Photograph taken/owned by contributor. |
| Author | Self |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
 
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:46, 27 August 2011 | | 1,368 × 1,824 (244 KB) | Wp-0001 | {{Information |Description ={{en|1=Johnson bar for a parking/emergency brake in a White transit bus originally operated by San Francisco Muni. The front of the bus is to the right; the brake is operated by squeezing the grip and pulling back on the le |
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