| 摘要 |
575,913. Valves. AUDLEY ENGINEERING CO., Ltd., and LEACH, K. M. April 19, 1944, No. 7250. [Class 135] A gland cover for the packing of rotary spindles, and especially applicable to the packing of the spindle d of a rotary plug valve c, comprises two plates g, h held down by studs u onto a ring t compressing the packing material e. A recess k is formed in the plate g around the spindle and in this recess a stop piece i is arranged which comprises a ring having a central square hole providing a sliding connection with the squared part of the spindle and having peripheral projections p, p which engage with studs q, q to limit the rotation of the valve plug. |
