Search results
Results from the WOW.Com Content Network
The concept of a crawler crane undercarriage was first developed by the Bucyrus Company of South Milwaukee, Wisconsin in 1911. The first model, a Bucyrus gasoline-engine powered 'Type 14' dragline (usable with crane hook) had a standard 18.3m (60ft) lattice boom, a 4.27m (14ft) diameter swing ring and the crawler version weighed 47t (52USt).
It manufacturers lattice boom crawler cranes with capacities ranging from 50 to 275 tons. The American Crane Corporation was founded in 1882 as the Franklin Manufacturing Company, and in 1892 the name changed to American Hoist & Derrick. The company manufacturers terrain cranes, crawler cranes and tower cranes.
Two modules of Cometto MSPE series configured with turntable operated by Eisele AG in Maintal.. A self-propelled modular transporter or sometimes self-propelled modular trailer (SPMT) is a platform heavy hauler with a large array of wheels which is an upgraded version of a hydraulic modular trailer.
“Elevators are fully enclosed cabins that move vertically within a shaft, designed for carrying people or items multiple floors,” explains Dak Kopec, Ph.D., architectural psychologist and ...
Crawler cranes range in lifting capacity from about 40 to 4,000 long tons (44.8 to 4,480.0 short tons; 40.6 to 4,064.2 t) as seen from the XGC88000 crawler crane. [58] The main advantage of a crawler crane is its ready mobility and use, since the crane is able to operate on sites with minimal improvement and stable on its tracks without outriggers.
Holt Steamer No. 77, the second prototype of a crawler-track-type tractor, on a trial run demonstrating its ability to travel across the marshy peat soil of Roberts Island. Many people had attempted to add tracks to moving machines. Over 100 patents had already been issued worldwide, but all failed to work in practical situations.
A simple dumbwaiter is a movable frame in a shaft, dropped by a rope on a pulley, guided by rails; most dumbwaiters have a shaft, cart, and capacity smaller than those of passenger elevators, usually 45 to 450 kg (100 to 992 lbs.) [2] Before electric motors were added in the 1920s, dumbwaiters were controlled manually by ropes on pulleys.
The crawler-transporters have featured in television and movies. In a 2007 season three episode of Dirty Jobs, host Mike Rowe helps workers maintain a crawler-transporter and takes the vehicle for a short drive. [18] The crawler was also seen in the 1995 film Apollo 13, the 2011 film Transformers: Dark of the Moon and the 2019 film Apollo 11.