. Railway mechanical engineer . Cross-Tie with Motor Nose Spring SupportPosition of materials, simplicity of design and ease of inspection andrepairs. As stated heretofore no attempt is here made to gointo the details of design. How-ever, it is pertinent to draw the same amount. This is not necessary, due to the absenceof reciprocating movement and the more jjerfect balance ofall rotating parts. Advantage should be taken of this fact. In the following paragraphs a brief description of themajor mechanical parts is given with illustrations of theirconstruction and assembly. A pair of mounted dri
. Railway mechanical engineer . Cross-Tie with Motor Nose Spring SupportPosition of materials, simplicity of design and ease of inspection andrepairs. As stated heretofore no attempt is here made to gointo the details of design. How-ever, it is pertinent to draw the same amount. This is not necessary, due to the absenceof reciprocating movement and the more jjerfect balance ofall rotating parts. Advantage should be taken of this fact. In the following paragraphs a brief description of themajor mechanical parts is given with illustrations of theirconstruction and assembly. A pair of mounted driving wheels with journal lioxeswhich have grease plugs for lubricating the hub liners isshown in Fig. 3. Fig. 4 depicts a jig or template uponwhich the main frames, cross-ties and bumpers are assem-. Fig. 6—Main Trucl< Bolster Casting Which Receives Center PinLoading bled. These are arranged to properly gage and locate theseveral parts. Fig. 5 shows one of the cross-ties machined ready to bejilaced in position. Attached to it is the spring support forthe motor nose which is used to give die motor an easyriding effect, to cushion vibrations and pennit movementand adjustment as required by the tracking conditions. Thissuspension also acts as a stop for the safety lugs which aremounted upon the motor, in case the motor nose fails. Fig. 6 portrays the main truck bolster casting, whichcarries the female center pin casting. This is spring sup-ported and provided with four side blocks which act ascross-heads and are held bv the guides shown on the cross- , 1922 RAILWAY MECHAXICAL EXGIXEER 321 ties in Fig. 5. Such construction fjermits the center pinlocation over a driving axle or at any intermediate pointbetween truck cross-ties. After the main frames are properly tied together
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
