Universal chuck for a machine for piercing a tap hole of a shaft furnace
US5348430A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1993 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | Jun 10, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/95
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A universal chuck is presented which has the ability to either transmit a tensile or pulling force to the end of a piercing rod or transmit a rotational moment or force to a drill bit on a piercing machine for piercing a tap hole of a shaft furnace. The universal chuck of this invention comprises a rotary body mounted on the drive spindle of a working member slidably mounted on a piercing machine. A suitable support structure integral with the working member forms a guide cage around the rotary body. Structure for transmitting the tensile or pulling force to the end of a piercing rod and a rotational moment or force to a drill bit along with structure for adequately controlling operating and cooling fluids to a drill bit are arranged about a front cavity in the rotary body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.