Search results
Results from the WOW.Com Content Network
Mt Morgan Rack Railway on Mount Morgan – rack system existed until 1952 when the line was deviated. Used the Abt rack system. 1,067 mm (3 ft 6 in) gauge. Ellalong Colliery – underground Lamella rack – installed in 1984; Skitube Alpine Railway – Lamella rack – in the Snowy Mountains, opened in 1987; 1,435 mm (4 ft 8 + 1 ⁄ 2 in) gauge.
Rack railway systems Carl Roman Abt (16 July 1850 – 1 May 1933 [ 1 ] ) was a Swiss mechanical engineer , inventor and entrepreneur. He made groundbreaking innovations in rack-and-pinion railways , giving his name to one of the most widely used systems developed for mountain railways, the Abt rack system .
Locher set out to design a rack system that could be used on gradients as steep as 1 in 2 (50%). The Abt system – the most common rack system in Switzerland at the time – was limited to a maximum gradient of 1 in 4 (25%). Locher showed that on steeper grade, the Abt system was prone to the driving pinion over-riding the rack, causing ...
A rack and pinion has roughly the same purpose as a worm gear with a rack replacing the gear, in that both convert torque to linear force. However the rack and pinion generally provides higher linear speed — since a full turn of the pinion displaces the rack by an amount equal to the pinion's pitch circle whereas a full rotation of the worm screw only displaces the rack by one tooth width.
The entire unit moves horizontally within an aisle, while the shuttles are able to elevate up to the necessary height to reach the load, and can extend and retract to store or retrieve loads that are several positions deep in the shelving. A semi-automated system can be achieved by utilizing only specialized shuttles within an existing rack system.
Track with Von Roll system (or single blade Abt rack system?). de:Zahnradbahn and Zahnradgleise can not agree if it is a "von Roll" or an "Abt" --Peter Horn 02:30, 30 March 2006 (UTC) --Peter Horn 15:23, 30 March 2006 (UTC) Two users in Zahnradbahn tell me that this is a von Roll system--Peter Horn 21:29, 30 March 2006 (UTC)
Rack with sample component sizes including an A/V half-rack unit. A rack unit (abbreviated U or RU) is a unit of measure defined as 1 + 3 ⁄ 4 inches (44.45 mm). [1] [2] It is most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames, whereby the height of the frame or equipment is expressed ...
Pallet racking made from Dexion slotted angle. Pallet rack is a material handling storage aid system designed to store materials on pallets (or “skids”). Although there are many varieties of pallet racking, all types allow for the storage of palletized materials in horizontal rows with multiple levels.