| 摘要 |
Apparatus for adjustable control of the rate of pumping liquid through a peristaltic pump, comprising a main shaft onto which an index plate is slideably engaged and locked by rotating the plate with respect to the shaft and seating the plate in a lateral slot on the shaft, a pawl assembly rotated by a motor and adapted to engage and disengage itself to the index plate as the assembly follows an adjustable cam surface, thereby providing intermittent rotation to the shaft which drives a peristaltic pump.
|
