IJSRP, Volume 4, Issue 10, October 2014 Edition [ISSN 2250-3153]
B D N Mendis, Nimali T Medagedara, D C Wijewardene
Currently, many types of string hopper machines are available in Sri Lanka. One is a rotary type and the other one is the lever type string hopper machine. Rotary type machine which is available in the local market has a main drawback of having to remove the cylinder for each batch of 100 string hoppers . For this task handle should be rotated until the rack comes to its uppermost position which makes the operator fatigued and consumes more time.