Useful Improvement in Machines for Threading Bolts and Pipes

Industrial Machinery Corporation has invented a certain new and useful Improvement in Machines for Threading Bolts and Pipes, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same This invention relates to machines of the character that are used for Bolt Threading Machine

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Having thus described our invention, what we claim as new and desire to secure by Letters Patent, is:

l. A bolt threading machine, comprising a threading mechanism, a carriage that carries the article to be threaded, means adapted to be operated by a medium under pressure for moving the carriage toward said threading mechanism, and means for automatically cutting of? the supply of the operating medium to said means after the article on the carriage has been engaged by said threading mechanism.

2. A bolt threading machine, comprising a threading mechanism, a carriage that carries the article to be threaded, means adapt threading mechanism, and means for rendering said carriage moving means inoperative automatically after the article on the carriage has been engaged by the threading mechanism.

3. A bolt threading machine, comprising a threading mechanism, a part that carries the work, means adapted to be operated by a medium under pressure for arranging the work in position to be engaged by said threading mechanism, and means for automatically cutting off the supply of the operating medium to said means after the work has been engaged by said threading mechanism.

4. In a bolt threading machine of the type in which the carriage is moved toward the threading mechanism 'by a means operated by a medium under pressure, a valve for controlling said operating medium, and means for automatically closing said valve after the carriage reaches such a position that the article thereon is in operative relationship with the threading mechanism.