Brake Tests
År: 1913
Forlag: Pensylvania Railroad Company
Sted: Altoona, Penna.
Sider: 401
A Report Of A Series Of Road Tests Of Brakes On Passanger Equipment Cars Made At Absecon, New Jersey, In 1913
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SHEET No__7992
392
M. P. 470—B
PENNSYLVANIA RAILROAD COMPAN’
PHILADELPHIA, Baltimore & WASHINGTON RAILROAD COMPANY
NORTHERN CENTRAL RAILWAY COMPANY
WEST Jersey & Seashore Railroad Company
TEST DEPARTMENT
Brako Tests -W.J.& S.R.R.
8x10%
361 4-29-12
Altoona. Pa__8-22-13
INTERMITTENT STOPS. 60 M.P.H. to 0 M.B.H. - 180 % B.P.
Speed in M.P.H. Time seconds shoe 1s on wheel Per cent, of total area in bearing contact Instantaneous Value per cent. Coefficient Of friction
Shoe No. 7. Test No. 4.
60-52 3.2 33.8 14.03
52-41 3.2 58.2 13.90
41-30 3.5 64.2 17.80
30-15 3.5 69.3 23.15
15-0 3.3 69.2 38.30
Shoo No. 5. Test No .26.
60-48 3.5 42.70 10.38
48-39 3.0 50.6 20.20
39-29 2.6 • 51.1 26.25
29-15 3.0 60.2 27.70
15-0 2.4 78.5 37.90
Shoe No. 4. Test No . 24.
60-50 2.9 35.6 20.25
50-38 2.8 49.5 24.60
38-28 2.2 65.3 26.90
28-15 2.8 69.5 31.90
15-0 2.3 65.8 37.90
Sheet No..7992.