Abstract: The invention relates to an existing pipe cut-off method and slitting method, by which an existing pipe made of cast iron and steel can be cut off. With a cut-off method according to the invention, first, a part of an existing pipe 1 is enclosed and sealed up by a seal-up housing 2 in an airtight state, a cutting tool 30 having a plurality of blades 30c is accommodated in the corresponding seal-up housing in a state the cutting tool is attached to the abovementioned seal-up housing 2. Next, the cutting tool 30 is fed toward the center of the abovementioned existing pipe 1 while slitting the existing pipe 1 by rotating the cutting tool 30 by power of a prime mover, and the abovementioned existing pipe 1 is cut off by the cutting tool 30 by turning the abovementioned seal-up housing 2 in the circumferential direction R of the existing pipe 1.

Abstract: The invention relates to an existing pipe cut-off method and slitting method, by which an existing pipe made of cast iron and steel can be cut off. With a cut-off method according to the invention, first, a part of an existing pipe 1 is enclosed and sealed up by a seal-up housing 2 in an airtight state, a cutting tool 30 having a plurality of blades 30c is accommodated in the corresponding seal-up housing in a state the cutting tool is attached to the abovementioned seal-up housing 2. Next, the cutting tool 30 is fed toward the center of the abovementioned existing pipe 1 while slitting the existing pipe 1 by rotating the cutting tool 30 by power of a prime mover, and the abovementioned existing pipe 1 is cut off by the cutting tool 30 by turning the abovementioned seal-up housing 2 in the circumferential direction R of the existing pipe 1.

Abstract: A transfer machine and system is disclosed which automatically performs a series of marking, cutting, sorting, and the like operations in the manufacture of a large number of test material samples. The transfer machine operates under the control of a card or tape reader which provides coded information such as marking indicia, pattern number and thickness of the material for each test sample. This information is encoded, temporarily stored and then shifted in a series of parallel shift registers in sequence with the corresponding test sample as it progresses through each stage of the transfer machine. The contents of the shift registers at each stage are decoded to provide the control signals for the corresponding marking, cutting, sorting, and similar operations.