초록 ▼

A hatch cover system for a railroad car employs a longitudinally extending series or end-to-end main hatch covers wherein each adjacent pair of covers has proximate, concave ends defining a circular port that permits access to the interior of the car when the covers are in their closed positions. A

A hatch cover system for a railroad car employs a longitudinally extending series or end-to-end main hatch covers wherein each adjacent pair of covers has proximate, concave ends defining a circular port that permits access to the interior of the car when the covers are in their closed positions. A relatively small, circular cover is provided for each port and, in its closed and locked position over the associated port, also serves as a batten to hold the adjacent main covers closed. For operations not requiring that the entire hatch be open, the ports provide easy access to the interior of the car without the need to raise the heavy main covers and swing them to their open positions. The number of hinges required by the cover system is significantly reduced by the use of a special hinge device adjacent each port that serves as a mount for the associated port cover and both or the adjacent main covers.

대표청구항 ▼

[ Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is as follows:] [13.] A cover system for a railroad car having a hatch defining a longitudinally extending opening therein, said system comprising:a plurality of longitudinally extending primary

[ Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is as follows:] [13.] A cover system for a railroad car having a hatch defining a longitudinally extending opening therein, said system comprising:a plurality of longitudinally extending primary covers, each adjacent pair of said primary covers having proximate ends,means for mounting each of said primary covers for movement between a closed position with respect to said opening and an open position permitting access to the car through the hatch,each pair of proximate ends of said primary covers cooperating to provide a port permitting access to the hatch when the associated primary covers are in their closed positions,a secondary cover for each port, and means for mounting each secondary cover for movement between a position closing the associated port and overlying the proximate ends of the adjacent primary covers, and an open position with respect to the associated port, andmeans for selectively securing each secondary cover in said position closing the associated port, whereby to also hold the adjacent primary covers in their closed positions..Iaddend.