Re: AAR Interchange dates data


Guy Wilber
 

In a message dated 10/27/2008 6:27:37 PM Central Daylight Time,
4everwaiting@... writes:

1909 MCB drops recommendation for "Air Brake" stencil Thompson, James D.
1909 MCB standard MCB-26A to locate reporting marks at left end of
car side Thompson, Anthony W.
1911 Safety Appliance Act amended (ladders, grabs,etc.) Thompson, James D.
1911 United States Safety Appliances Standard stencil introduced
Thompson, James D.
1914 (or 1916?) Steel or steel-framed ends required or recommended on
box cars Neubauer, Eric & Thompson, David
1915 (approx.) All cars to be equipped with compliant ladders, grabs,
etc. Thompson, James D.
1920 Oct 20; ARA issues standards for stenciling reporting marks Wilber, Guy
1925 United States Safety Appliances Standard stencil requirement
discontinued Thompson, James D.
1925 Jan 1; ARA revised dimensional data stencil standards in effect
Gilbert, Tim
1925 May 1; nominal capacity & load limit stencils required Wilber, Guy
1927 April 7; load limit star stencil recommended, when limit is not
bearings Wilber, Guy
1928 wood draft sills banned from interchange Hendrickson, Richard
1933 August 1; Type E or F couplers required on all newly-built cars
1933 August 1: rotary uncoupling levers required on all newly-built
or newly-rebuilt cars
1933 September 1; AB brakes required on all newly-built cars
Hendrickson, Richard & Wilber, Guy
1934 October 12; AAR created by merger of ARA with Assn of Ry
Executives and Bureau of Ry Economics English, Jeff; from Weekly Rail Review
1935 January 1; revision of ICC accounting rules defining
repaired/rebuilt equipment Wilber, Guy
1936 January 1; Initial proposed ban of arch bar trucks (eventually
extended to 1940) Wilber, Guy
1937 January 1; AB brakes required on all newly-rebuilt cars Wilber, Guy
1937 January 1; geared handbrakes required on all newly-built or
newly-rebuilt cars Wilber, Guy
1937 August 1; revision of AAR Interchange Rules defining
repaired/rebuilt equipment Wilber, Guy
1937 August 1; Type E or F couplers required on all newly-rebuilt
cars Westerfield, Al
1937 Most billboard markings gone off boxcars and reefers Westerfield, Al
1938 No billboard boxcars and reefers Westerfield, Al
1939 December 31, arch bar trucks banned except 6 mo. for returning
empties Wilber, Guy
1940 July 1; arch bar trucks banned from interchange Wilber, Guy
1945 wood running boards outlawed on new cars O'Connor, Tim
1946 Jan 1; weld-repaired T- or L-section truck sideframes not to
applied Wilber, Guy
1948 Plate B maximum height 15-1 adopted 1948 ORER
1949 Jan 1; first proposed deadline for banning T- and L-section
trucks Wilber, Guy
1949 Reweighing box, stock, reefer after 1st 30 mos, then every 48
Nehrich, John
1950 Aug 1; I-section trucks added to proposed ban of T- and
L-section trucks Wilber, Guy
1953 July 1; K brakes banned, except tank cars & returning empties Kelly,
Bill
1953 October 1; K brakes banned for tank cars & returning empties,
except for tank empties Kelly, Bill
1954 January 1; K brakes banned for all cars, including returning
tank empties Kelly, Bill
1957 January 1; final deadline for ban on T-, L- and I-section truck
sideframes Wilber, Guy
1957 trucks w/integrally-1957 trucks w/integrally-<WBR>cast journal box
Hendrickson, Richard
1958 January 1; cast iron wheels prohibited on new or newly-rebuilt cars
1959 January 1; Allied Full-Cushion truck banned due to derailments Wilber,
Guy



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