Twin Tie Plates

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TWIN TIE PLATES Twin Tie Plates are used for frogs, guard rails, and behind the heel of switches. They are produced to standard AREMA designs and are very versatile. The slotted hole allows them to fit almost any rail section. Their use in pairs, side by side on the same tie, allows them to adapt to different tie spacings, frog angles, etc. The standard AREMA thickness is 3/4”, but a 5/8” thickness is common for industrial trackwork. Two typical applications are shown below. #2 #1 #2 #1 #2 #1 Switch Point Note: Square Spike Holes (or Hooks) Must Always be on Outside of Rail Switch Point #1 #2 #1 #2 #1 #2 Application of Twin Tie Plates No. 1 & No. 2 Behind the Heel of a Switch #1 #1 #1 #1 #2 #2 #1 #1 #1 #1 #1 #1 #1 #1 #1 #1 Application of Twin Tie Plates No. 1 & No. 2 on Bolted Rigid Frog Note: Twin Tie Plate No. 2 (or Type LR) to be used on Heel of Frog only Where it is Possible to Spike Between Rails V – 16 (503) 286-3691 FAX (503) 286-2097 © 2007 www.HarmerSteel.com sales@harmersteel.com TWIN TIE PLATES Hook Twin Tie Plates Hook Twin Tie Plates are manufactured L per AREMA plan 241. Hook twin tie plates generally come with three types of hooks: 1” 2” 4-7/8” 3/4” Low – Type L, Low Reverse – Type LR, and High – Type H. Type H plates do not 4” have the slotted hole and have a higher 3/4” hook designed to fit over the base of a 3/4” manganese frog. If the hook of a hook twin H 14° 3/4” tie plate interferes with a joint bar, the hook can be cut off or bent to a vertical position. Mark L and H 3” 1” 3/4” 1” 3/4” Hook Twin Tie Plates are manufactured per AREMA plan 241. Mark L23 L27 L31 H23 H27 H31 LR23 LR27 LR31 L 23” 27” 31” 23” 27” 31” 23” 27” 31” ” H 9/16” 9/16” 9/16” 15/16” 15/16” 15/16” 9/16” 9/16” 9/16” Wt. (lbs.) 18.8 22.2 25.6 19.1 22.5 25.9 18.8 22.2 /2 25.6 L 1” 3/4” 4” 3/4” 2-1/8” 2” 4-7/8” 1-3/8” 3/4” H 14° 1” Mark LR 1” 3/4” 1-3/8” 3/4” 3/4” Flat Twin Tie Plates Flat Twin Tie Plates are manufactured as shown. Type No. 1 No. 2 No. 3 Weight (lbs.) 2’– 0-1/2 5/8” thick 3/4” thick 416.9 20.3 16.9 20.3 20.8 24.9 2-1/2” 2’– 0-1/2” 4-3/4” 2” 3/4” 3/4” 3/4” Type 1 4” 2-1/2” 4-3/4” 2” 3/4” 2’-6” 3/4” 3/4” 2’– 0-1/2” 3/4” 3/4” 4-3/4” 2” 1-3/4” 4” 3/4” 3/4” 3/4” 4” Type 3 www.HarmerSteel.com sales@harmersteel.com 3/4” © 2007 Type 2 /4” (503) 286-3691 3/ ” / 4 3/4” FAX (503) 286-2097 V – 17