发明名称 |
Concrete railroad tie casting and handling system |
摘要 |
A system for mass producing prestressed concrete railroad ties using a slip-forming method of casting concrete over a plurality of molds arranged side by side and end to end on a casting bed; a specially equipped continuous casting machine for slip-forming the railroad ties in an upside-down orientation; techniques an equipment for separating and removing finished railroad ties from the casting bed; a plant layout to facilitate casting and handling operations; a specially adapted apparatus for rotating groups of railroad ties to permit sticking thereof in rightside-up orientation.
|
申请公布号 |
US4242071(A) |
申请公布日期 |
1980.12.30 |
申请号 |
US19780933283D |
申请日期 |
1978.08.14 |
申请人 |
MARTIN CONCRETE ENGINEERING |
发明人 |
STINTON, FREDERICK M |
分类号 |
B28B1/08;B28B13/04;(IPC1-7):B28B23/06 |
主分类号 |
B28B1/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|