A funicular is a type of cable railway system that connects points along a railway track laid on a steep slope. The system is characterized by two counterbalanced carriages permanently attached to opposite ends of a haulage cable, which is looped over a pulley at the upper end of the track. The result of such a configuration is that the two carriages move synchronously: as one ascends, the other descends at an equal speed. This feature distinguishes funiculars from inclined elevators, which have a single car that is hauled uphill.
The Dumb Waiter is a one-act play by Harold Pinter written in 1957.
The American Society of Mechanical Engineers (ASME) is an American professional association that, in its own words, "promotes the art, science, and practice of multidisciplinary engineering and allied sciences around the globe" via "continuing education, training and professional development, codes and standards, research, conferences and publications, government relations, and other forms of outreach." ASME is thus an engineering society, a standards organization, a research and development organization, an advocacy organization, a provider of training and education, and a nonprofit organization. Founded as an engineering society focused on mechanical engineering in North America, ASME is today multidisciplinary and global.
The Ersatz Elevator is the sixth novel of the children's novel series A Series of Unfortunate Events by Lemony Snicket. The Baudelaires are sent to live with the wealthy Esmé and Jerome Squalor.
A clothes line, also spelt clothesline and also known as a washing line, is a device for hanging clothes on for the purpose of drying them. It is any type of rope, cord, or twine that has been stretched between two points, outside or indoors, above the level of the ground. Clothing that has recently been washed is hung along the line to dry, using clothes pegs or clothespins. Washing lines are attached either from a post or a wall, and are frequently located in back gardens, or on balconies. Longer washing lines often have props holding up sections in the middle due to the weight of the usually wet clothing.
A belt is a loop of flexible material used to link two or more rotating shafts mechanically, most often parallel. Belts may be used as a source of motion, to transmit power efficiently or to track relative movement. Belts are looped over pulleys and may have a twist between the pulleys, and the shafts need not be parallel.
An elevator consultant is someone who specializes in the design, testing and maintenance inspection of elevators, escalators, moving walkways and many other conveyances that move people. They are not to be confused with elevator mechanics. Consultants do not normally perform work on conveyances. Some elevator consultants may also work as private elevator inspectors. Some jurisdictions may accept independent third party inspectors for certified inspections while others may employ their own inspectors.
Alexander Lyman Holley was an American mechanical engineer, inventor, and founding member of the American Society of Mechanical Engineers (ASME). He was considered the foremost steel and plant engineer and designer of his time, especially in regard to applying research to modern steel manufacturing processes.
A lazy Susan is a turntable placed on a table or countertop to aid in distributing food. Lazy Susans may be made from a variety of materials but are usually glass, wood, or plastic. They are circular and placed in the centre of a table to share dishes easily among diners. Although they are common in Chinese restaurants, the lazy Susan is not a Chinese-American invention. Owing to the nature of Chinese cuisine, especially dim sum, they are common at formal Chinese restaurants both in mainland China and abroad. In Chinese, they are known as 餐桌转盘 or "dinner-table turntables".
A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium. The most familiar form is an elevator, the car of which is raised and lowered by a hoist mechanism. Most hoists couple to their loads using a lifting hook. Today, there are a few governing bodies for the North American overhead hoist industry which include the Hoist Manufactures Institute, ASME, and the Occupational Safety and Health Administration. HMI is a product counsel of the Material Handling Industry of America consisting of hoist manufacturers promoting safe use of their products.
Comedy of menace is the body of plays written by David Campton, Nigel Dennis, N. F. Simpson, and Harold Pinter. The term was coined by drama critic Irving Wardle, who borrowed it from the subtitle of Campton's play The Lunatic View: A Comedy of Menace, in reviewing Pinter's and Campton's plays in Encore in 1958.
John Fowler was an English agricultural engineer who was a pioneer in the use of steam engines for ploughing and digging drainage channels. His inventions significantly reduced the cost of ploughing farmland, and also enabled the drainage of previously uncultivated land in many parts of the world.
A jackshaft, also called a countershaft, is a common mechanical design component used to transfer or synchronize rotational force in a machine. A jackshaft is often just a short stub with supporting bearings on the ends and two pulleys, gears, or cranks attached to it. In general, a jackshaft is any shaft that is used as an intermediary transmitting power from a driving shaft to a driven shaft.
A Z-Drag or Z-Rig is an arrangement of lines and pulleys, effectively forming a block and tackle, that is commonly used in rescue situations. The basic arrangement results in pulling the hauling end 3 times the distance the load is moved, providing a theoretical mechanical advantage of three to one. In actual practice the advantage will be reduced by friction in the pulleys or carabiners. The advantage will also be reduced if the pull on the hauling end is not parallel to the direction the load moves in. The name comes from the fact that the arrangement of lines is roughly Z shaped. Besides the mechanical advantage to pulling, it also uses only part of the total length of the rope for the block and tackle arrangement.
An elevator or lift is a machine that vertically transports people or freight between levels. They are typically powered by electric motors that drive traction cables and counterweight systems such as a hoist, although some pump hydraulic fluid to raise a cylindrical piston like a jack.
A differential pulley —also called "Weston differential pulley", sometimes "differential hoist", "chain hoist", or colloquially "chain fall"— is used to manually lift very heavy objects like car engines. It is operated by pulling upon the slack section of a continuous chain that wraps around two pulleys on a common shaft. The relative sizing of the two connected pulleys determines the maximum weight that can be lifted by hand. If the pulley radii are close enough, then the load will remain in place until the chain is pulled.
David Wilkinson was a U.S. mechanical engineer who invented a lathe for cutting screw threads, which was extremely important in the development of the machine tool industry in the early 19th century.
An escalator is a moving staircase which carries people between floors of a building or structure. It consists of a motor-driven chain of individually linked steps on a track which cycle on a pair of tracks which keep the step tread horizontal.
George W. Cannon was an American inventor from New York. He is best known for the invention of the mechanical dumbwaiter. Cannon first filed for the patent of a brake system that could be used for a dumbwaiter on January 6, 1883. He later filed for the patent on the mechanical dumbwaiter on February 17, 1887. He is reported to have generated a vast amount of money from royalties from his dumbwaiter patents until his death in 1911.
Jesse Merrick Smith was a prominent American mechanical engineer, consulting engineer, patent expert, and president of the American Society of Mechanical Engineers in the year 1909-10.
