. American engineer and railroad journal . sections were selected with a view of securing good example the fillets are large and I sections are used prettynearly the full length of the frames. It is not a new plan forthese builders to make frames in one piece, but they havenever before, and it is believed that no one else has used awidth of 6 in. In the recessed portions which are not machinedthe width is ZVi in. This unusual width is given in order toincrease the lateral stiffness of the frames and in this respectcurrent practice seems to be deficient. For example, no onewould th
. American engineer and railroad journal . sections were selected with a view of securing good example the fillets are large and I sections are used prettynearly the full length of the frames. It is not a new plan forthese builders to make frames in one piece, but they havenever before, and it is believed that no one else has used awidth of 6 in. In the recessed portions which are not machinedthe width is ZVi in. This unusual width is given in order toincrease the lateral stiffness of the frames and in this respectcurrent practice seems to be deficient. For example, no onewould think of raising a full length locomotive frame by acrane with a single sling in the middle of its length. If the. LM>t the same fram upi o withstand the side thrusts at a beavj locomotivi with no diagonal bracing. While framei and are tied to the boiler ai frequent in1 ad are also tied across thi engine at iin- bottom rails, there lis b in no , to prevent both bottom rails from moving laterally together and setting up torsional stresses on tins acci t. Tl a Includes a rigid fronl decs cs ting embodying the spindle guide and bumper bracketsto which the frames are secured; it, provides a wide cast steeliiiiss tii- over the main driving axle, another over the tbdriving axle, a plate brace and cross tie to support the front endhi
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
