This invention relates to a pipe thread cutting machine which is capable of performing the operation of fastening of a threaded pipe coupling such as a socket, elbow or the like onto or into a threaded pipe as well as the cutting-off and thread cutting operations on the pipe.
It has been widely known that thread cutting machines for pipes are used which are adapted to cut a pipe into a pipe section of a predetermined length and then cut threads in the pipe section, as the case may be, after reaming. For example, such conventional type thread machines are disclosed in U.S. Pat. No. 3,095,772. However, since the conventional pipe thread cutting machines of this type have been designed to exclusively perform the operations of cutting-off and thread cutting on pipes, the fastening of a threaded cupling such as a socket, elbow or the like into or onto the threaded pipe has to be performed in a separate or additional manual step outside of the thread cutting machine. Therefore, a demand exists for a pipe thread cutting machine which can perform in succession the operations of cutting-off and thread cutting on a pipe and the operation of fastening of a threaded coupling onto or into the pipe following the thread cutting on the pipe in a brief time space and with high efficiency.