CODE
"Yosemite"
Yosemite Flat Car
With Steel Frame and Reinforced Bulkheads
Detail Photo of Yosemite Flat, stripped, showing Steel Underframe
[Yosemite Grade Destroyer]
Yosemite Valley Railway Standard Logging Car
(60,000 POUNDS CAPACITY)
Equipped with Hercules Bunks and Knight Chocks
This car was specially designed for the Yosemite Valley Lumber Co. to operate on an incline 8,000 feet long, with a maximum grade of 78%, the rise in feet from the foot of the incline to the top being 3,100 feet, the incline being in a vertical plane, but following the general slope of the mountain side and changing from one slope to another. The cars are let down the incline by means of 1½ in. wire rope, attached to a donkey engine.
This car was designed to meet these conditions, and is provided with a steel backbone, reinforced at the ends forward of bolsters to provide for the extreme angle of cable pull from a horizontal line and at the down hill end to support the bulkhead, which is provided to keep the logs from shifting. The vertical bulkhead posts are riveted to the steel backbone. At the cable end a special combination buffer and cable casting of cast steel is secured to the backbone by means of gusset plates, and is also riveted to end sill.