Recent Blogs
Rack and Pawl: Declared Index-Pitch Ledger
How a Rack and Pawl mechanism converts reciprocating motion into one-way linear indexing — design rules, formulas, and real applications in lift jacks and presses.
Otis 1861 Hoisting Safety Catch: Hooked Rack-and-Pawl Principle
Explore Otis’s 1861 rope-triggered rack-and-pawl hoisting catch. Count equally spaced positions on two racks from a chosen span and pitch.