Tuesday, April 15, 2014

Bogey Frame - Freight

The first railroad cars were all 4 wheel with pedestals, this worked and was used for coal cars and on caboose cars and were in use up to 1900 or so. The 4 wheel bogey or 8 wheel car soon appeared in the US but know one knows when, who made it, what it looked like, or what railroad it was used on. What came common was a 4 wheel bogey with 4 pedestals and a hard wood frame but by around 1850 the wood needed was getting hard to find and the wood frames would get "out of square".

Wood bogeys are not hard to make in Trainz, only the pedestals, springs, and journal boxes are.

The next improvement was the Arch-bar bogey, this was a big change in how the springs worked to keep the wheels on the rail. The springs were moved to the center of the bogey with the tops on the bolster and the bottom on the frame, this allowed the axle ends to move up and down but the journal boxes were now fixed to the frame. The frame was made from flat iron or steel bars, normally 3 bars per side held in by 6 bolts. This type is still in use today in some places. In the US some lasted up to the 1960's.


The big problem was the holes in the bars made a week point witch is why they were banded.

Arch-bar bogeys are also ease to make for Trainz.

In 1888 the first press-steel bogey was made by Fox and others fouled up to 1903 when Bettendorf came out, a cast steel side fram witch is still in use today. Known as a "Self-Aligning Spring-Plankless Double-Truss Truck". There are a lot of variation on this, some with cast in journal boxes some without. You could get them in 40, 50, and 70 ton sizes.


    
Above is a 70 ton



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