After a couple of millennia of fiddling with gears, you’d think there wouldn’t be much new ground to explore in the field of power transmission. And then you see something like an infinitely variable ...

Introduction Before the industrial age people largely had to rely on muscle power to move and lift heavy objects. Simple machines such as pulleys, levers and ramps made it easier for humans to lift ...

One common misconception is that belts will slip more frequently on composite pulleys than on metal pulleys. Not so! The wedging action of V-belts is so efficient that slip should never be an issue; ...

Have you ever seen a flag being raised, or wondered how a mechanical clock works? Let’s take a look at some of the simple mechanisms that they use. Pulleys and gears. When a flag is raised, it will ...

Price-list of all-wrought steel split pulleys Smithsonian Libraries and Archives Object Details Author American Pulley Co Notes Trade literature. Date Nd Call number 23516 Type Books Trade catalogs ...

Menasha Wood Split Pulley Co. "Lawson" wood pulleys ; "Lawson" trucks and materials handling equipment ; paper mill equipment ; "Lawson's" saw .