A derrick is a lifting device, especially in an oil field.

To move from her bed to a wheelchair, she needs the help of full-time attendants and a lifting device.

In the 1950s the company developed the so-called Stülcken derrick, a lifting device for very heavy cargo.

The controls were propped out over the water on a pier and had an automatic lifting device for when the water rose too high.

A gyn is a form of three legged lifting device used on sailing ships.

He was taken along corridors to a lifting device.

The lifting device was removed in 1966, but the towers remained until their removal in the summer of 2000.

Out of the many proposed theories, powering any lifting device also continues to present a challenge.

We believe that these simpler lifting devices should also be available to a broader public which has need of them.

Rogers sees people operating a lifting device that elevates a wheelchair into a van.