This magnificent rebel is a “Lazy Tong” pop riveter, which uses an accordion to cleverly translate about two feet (600mm) of hand movement into less than an inch (2cm) of rivet stem movement, allowing this tool to magnify the force of your hand movement by about 30-1 (even more near the end of the stroke when the accordion is most compressed). The rivet is pulled in and popped off while you are pushing the handle down, which is what you’d want for a tight joint. Notice how the bars get thicker the closer you are to the business end. The whole accordion works together to create the overall leverage ratio, but the force accumulate on the end that is resisting movement.
Location: Box 48
Have you used this tool? Think my description is all wrong? Have a better example? Comment now with any thoughts you have about this tool!
