| 摘要 |
A compound pump mechanism is provided adjacent the inlet ends of concentrically positioned inner and outer stuffing horns or tubes of a meat encasing machine. The first pump mechanism is in communication with a source of conventional meat emulsion, and is powered by a vertically disposed power shaft. This power shaft extends into the housing of a second pump mounted adjacent to, and preferably on top of, the first pump housing. The drive shaft of the first pump housing operates the pump mechanism in the second pump housing. Both pumps have inlet and outlet ports for conveying material to be pumped. The outlet ports of both pumps discharge the pumped material into a block element which slidably receives the ends of two concentrically positioned inner and outer stuffing horns. The pumped material from the second pump housing delivers pumped material into the end of the inner stuffing horn, and the pumped material from the first pump delivers meat emulsion or the like into the the end of the outer stuffing horn. The housing of the upper pump or second pump contains a vane-type pumping mechanism. The pumping capacity of that pumping mechanism is selectively controlled by pivoting the position of the second pump housing with respect to the first pump housing. |
