Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site clyde.UUCP Path: utzoo!watmath!clyde!dnc From: dnc@clyde.UUCP (Don Corey) Newsgroups: net.railroad Subject: Re: trucks Message-ID: <677@clyde.UUCP> Date: Mon, 10-Dec-84 22:23:07 EST Article-I.D.: clyde.677 Posted: Mon Dec 10 22:23:07 1984 Date-Received: Tue, 11-Dec-84 04:34:59 EST References: <147@decwrl.UUCP> Organization: AT&T Bell Laboratories Whippany NJ Lines: 26 I have a xerox article out of a past issue of "Model Railroader" magazine. It has this to say about freight trucks. Archbar - These trucks have sideframes made of individual metal straps, long bolts, and removable journal boxes. They were first introduced about 1860. In 1938, the ICC banned their use on cars interchanged between railroads because they were subject to metal fatigue. The article states that they are still used on maintenance-of-way cars and other cars not used in interchange service, but I don't know when the article was published. Bettendorf - In 1903, the Bettendorf Co. designed a one piece cast-sideframe truck with integral journal boxes. There were several competitive designs of this truck that differed in shaping, but not in principle. These included Dalman, Symington, and Taylor. Andrews - These trucks look like the bettendorf trucks, but they have a support under the journal box. These trucks could use the journal boxes from the discarded archbar trucks. Roller bearing - The Model Railroader article did not mention roller bearing trucks, and I don't know much about them since I am modeling the early 1950's. To me, the look like Bettendorf trucks with a distinctive disk shaped bearing. I do know that in 1968, the AAR made them mandatory for all new cars. -- Don Corey AT&T Bell Laboratories WH 2A-140 (201) 386-2349 ihnp4!clyde!dnc