US Patent: 1,804,971
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| Multiple Spindle Center Turning Machine
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Patentee:
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| Edward Payson Bullard, Jr. (exact or similar names) - Stratford, Fairfield County, CT |
| Assignees: |
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Bullard Co. - Bridgeport, Fairfield County, CT |
| Manufacturer: |
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Bullard Co. - Bridgeport, Fairfield County, CT |
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Patent Dates:
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| Applied: |
May 02, 1925 |
| Granted: |
May 12, 1931 |
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Joel Havens
Vintage Machinery entry for Bullard Machine Tool Co.
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Description: |
| Abstract:
The invention relates particularly to a type of machine employing a continuously driven rotary carrier, on which a series of rotating work carrying tables or supports are mounted, with tool slides in relation to each table in a manner to be carried by the carrier with the tables, so that a plurality of pieces of work may be machined at the same time, the pieces to be worked on being continuously supplied to the machine at a leading station as the finished pieces are removed.
Claim:
In a center turning machine tool a con-3tinuously rotating carrier, a plurality of rotatable work holder's carried thereby, a nonrotatable tool holder also mounted on the carrier and adapted to have reciprocatory movement at an angle to the axis of the work holder, means for reciprocating said tool holder, and change speed means between said last means and said tool holder whereby the speed of the tool holder may be varied with respect to said last means. In a center turning machine tool a continuously rotating carrier, a plurality of rotatable work holders carried thereby, a non-' rotatable tool holder also mounted on, the carrier, means for successively reciprocating said tool holder in two directions, one being at an angle to the axis of said work holder, and means whereby the relative speed of said successive reciprocatory movements may be varied with respect to each other. b0 . In a center turning machine tool a continuously rotating carrier, a plurality of rotatable work holders carried thereby, a nonrotatable tool holder also mounted on the carrier, means for successively reciprocating 6said tool holder at an angle to an d parallel to the axis of said work holder, and means whereby the, relative extents of said successive reciprocatory movement may be varied with respect to each other. In a center turning machine tool a continuously rotating carrier, a plurality of rotatable work holders carried thereby, a plurality of nonrotatable tool holders also mounted on the carrier and disposed in op-6posed relation and adapted to engage the work at opposed sides, and automatic means for reciprocating said tool holders into and out of relation with the work. |
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