The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 1987
Filed:
Jul. 26, 1985
Takahiro Nishimura, Kitakyushu, JP;
Masao Ohnuma, Kitakyushu, JP;
Kurosaki Refractories Co., Ltd., Kitakyushu, JP;
Abstract
An apparatus for changing casting nozzles such as immersion nozzles easily, quickly, and reliably. The apparatus has a holder frame fixed to the bottom of a molten metal pouring device and defining a substantially C-shaped casting nozzle travel passageway composed of a new-nozzle insertion passage, an old-nozzle ejection passage extending parallel thereto in spaced-apart relationship, and a joint passage connecting the new-nozzle insertion passage and the old-nozzle ejection passage to each other, and having a casting position where the casting nozzle is held under compression; a spring box mounted in the holder frame and having outer side portions resiliently supported by springs on opposite sides of the holder frame across the casting nozzle travel passageway, the spring box having on inner sides thereof guide rails forming part of side portions of the casting nozzle travel passageway, a nozzle moving mechanism mounted on the holder frame for moving the casting nozzle along the guide rails; and a lifting mechanism for lifting the casting nozzle in unison with the spring box in response to movement of the casting nozzle along the guide rails until the casting nozzle is fittingly held against the bottom of the molten metal pouring device.