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US 4,098,320 AGranted
Ingot stripper structure
AssigneeThe Alliance Machine Company
InventorEdward J. Kinkopf
Life of this patent
Estimating the term…
Abstract
An apparatus for stripping a metal ingot from its casting mold is provided in which mechanical stripping motion is provided by a stripping screw rotatable within a vertically extending column housing which is in turn rotatable within a column frame and in which the stripping screw provides control of the ingot and mold gripping tongs and a bull nose for ejecting ingots from a mold.
Claims10
An apparatus for stripping a metal ingot from its casting mold comprising:
- a. a column frame;
- b. a tubular column housing rotatably mounted within said column frame;
- c. means on said column frame for rotating said column housing relative to said column frame about a vertical axis;
- d. a single stripping screw rotatably mounted within said column housing;
- e. means on the column housing for rotating said stripping screw relative to said column housing;
- f. a nut mounted on the threads of said stripping screw and non-rotatable relative to said column housing but free to travel vertically within and relative to said column housing;
- g. a bull nose fixably attached to said nut for penetrating a mold;
- h. a plurality of tongs pivotally attached to said column housing for holding a mold;
- i. means connecting said bull nose and tongs operable by movement of said nut for closing said tongs;
- and
- j. means on said column housing operable by gravity to open said tongs.
8 more elements
An apparatus for stripping a metal ingot from its casting mold comprising:
- a. a column frame;
- b. a tubular column housing rotatably mounted within said column frame;
- c. means on said column frame for rotating said column housing relative to said column frame about a vertical axis;
- d. a stripping screw rotatably mounted within said column housing;
- e. means on the column housing for rotating said stripping screw relative to said column housing;
- f. a nut mounted on the threads of said stripping screw and non-rotatable relative to said column housing but free to travel vertically within said column housing;
- g. a bull nose fixably attached to said nut for penetrating a mold;
- h. a plurality of tongs pivotally attached to said column housing for holding a mold;
- i. means for opening and closing said tongs including a tong opening counterweight bearing on said tongs to open the same, a tong closing counterweight pivotally connected to said tongs so to oppose and override said tong opening counterweight and means for lifting the tong closing counterweight from bearing on said tongs as said bull nose is raised;
- wherein:
- j. said tong opening counterweight comprises a hollow cylinder mounted on the exterior of and guided by said column housing;
- k. said tong closing counterweight comprises a tubular member coaxially mounted within said column housing and guided by said bull nose;
- and
- 1. said lifting means comprises a collar on said bull nose and an internally projecting flange on said tong closing counterweight engaging said collar to limit downward movement of said closing counterweight.
11 more elements
In an apparatus for stripping a metal ingot from a casting mold comprising:
- a. a bull nose;
- b. a column housing;
- c. moving means on the column housing for raising and lowering said bull nose within said column housing;
- d. a plurality of tongs pivotally attached to said column housing for holding a mold;
- e. a tong opening counterweight bearing on said tongs to open the same;
- f. a tong closing counterweight pivotally connected to said tongs so to oppose and override said tong opening counterweight;
- g. means for lifting the tong closing counterweight from bearing on said tongs as said bull nose is raised;
- h. said tong opening counterweight comprising a hollow cylinder mounted on the exterior of and guided by said column housing;
- i. said tong closing counterweight comprising a tubular member coaxially mounted within said column housing and guided by said bull nose;
- and
- j. said lifting means comprising a collar on said bull nose, and an internally projecting flange on said tong closing counterweight engaging said collar to limit downward movement of said closing counterweight.
8 more elements
Dependencies are inferred from the claim text.