US Patent: 1,615,676
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| Die Head
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Patentee:
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| Carl W. Bettcher (exact or similar names) - New Haven, New Haven County, CT |
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Patent Dates:
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| Applied: |
Aug. 21, 1924 |
| Granted: |
Jan. 25, 1927 |
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Joel Havens
"Vintage Machinery" entry for Eastern Machine Screw Corp.
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Description: |
| My invention relates to an improvement in die heads adapted for use in connection with automatic machines, wherein the die head spindle rotates while the stock, on which the thread is cut, remains stationary.
Claim:
In combination with die head mechanism comprising a member carrying radially operating threading dies, a member slidably mounted thereon and carrying means for opening and closing the dies, and also carrying a trip lever for locking the closed dies and unlocking the same, of a tripping shell embracing the trip lever having an internal circumferential recess for the reception of the trip lever and for tripping the saiue, anid spring means for tensioning said trip lever carrying member with respect to said shell so that it will have an independent forward movement in combination with die head mechanism comprising a member carrying radially operating threading dies, a member slidably mounted thereon and carrying means for opening and closing the dies, and also carrying a trip lever for locking the closed dies and unlocking the same, of a tripping shell embracing the trip lever havin; an internal circumferential recess for the reception of the trip lever and for tripping the saiue, anid spring means for tensioning said trip lever carrying member with respect to said shell so that it will have an independent forward movement after the tripping shell is halted. |
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