US Patent: 1,153,981
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| Thread-Cutting Tool.
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Patentee:
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| William W. Vosper (exact or similar names) - Toledo, Lucas County, OH |
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Patent Dates:
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| Applied: |
Jun. 21, 1915 |
| Granted: |
Sep. 21, 1915 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Toledo Pipe Threading Machine Co.
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Description: |
| Abstract:
This invention relates to apparatus for cutting threads on pipes, rods or the like, and has for its object the provision of an improved tool of this character which is simple, strong, durable and inexpensive in its construction and which is small and compact in form to enable it to be used in corners or restricted spaces where tools of this class now in use cannot be employed.
Claim:
In a tool of the class described, a compact die head having a central opening which is restricted adjacent to the inner end of the head to form an internal shoulder, said head also having a coaxial tubular extension at its inner end and having its outer end provided with a plurality of radially disposed. recesses which extend into said shoulder, said extension being restricted in cross-section relative to the head and having peripheral teeth to form a toothed journal to rotatably carry a ratchet handle, dies, mounted in said recesses and braced at their inner ends against lateral strains by the walls of the portions of the recesses disposed in said shoulder, and a collar removably secured to the outer 'end of the head and co-acting with the dies to retain them in the recesses. |
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