MICROFICHE REFERENCE LIBFUUW - Cd3wd.com

handmade construction can be easily done by the local user--often utilizingltscrapO materials such as wheels, bearings, etc. It is also possible toretain the tripod, pulley, and rope used to construct the well or canalfor use in water lifting (see VITA, 1975).By using a counterweight, the pull needed to lift the full bucket canbe reduced, but of course, effort must also be expended to lower the bucket.By using a second bucket as the counterweight, the discharge can beincreased. No data appears available for comparison of optimum two bucketor counterweightoperation.As mentioned, rather than pulling the rope hand over hand, the liftercan move away from the roller to draw the container up from the watersource. Utilizing animals such as bullocks or camels to do the pulling,?this arrangement, called a mot, has been in use in developing countriesfor centuries. Among the other names found for this device are:motaramiokos (Pakistan)mote daly (Arabic)mohte (India)charsa (India)delu (Arabic)rope and bucket liftSeveral variations of this basic device are often used to improve itsefficiency and performance. Where possible, the animal(s) walk down aslight incline (usually 5 to 10 degrees), thereby utilizing its weight(i.e., gravity) to aid in the lifting (Figure 3.1). Often two peopleare needed for this operation-- one to drive the animal(s) and one toempty the bucket. Upon reaching the bottom of the incline., the animal iseither backed up or turned around and walked forward up the incline. Inthe latter case, two animals (or two pair) are often used. While one