Center-Latch Elevators (Square Shoulders) are for handling collar-type drill pipe, casing and tubing. All “A" type elevators are constructed in two halves of practically the same weight, providing proper balance and easier opening and closing. In open position, the elevator hangs ready for closing at any point below the upset of the pipe. All “A" type elevators feature latch and safety latch lock combinations. Safety features include operating handles to help prevent accidents to operators and an extra handle at the rear of the elevator for safer operation.