riser


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riser

1. the vertical part of a stair or step
2. a vertical pipe, esp one within a building

Riser

1. The vertical board under the tread of a step; a vertical supply pipe for a sprinkler system; a pipe for water, drainage, gas, steam, or venting that extends vertically through one or more stories and services other pipes.
2. The vertical face of a stair step.
See also: Step

riser

[′rīz·ər]
(chemical engineering)
That portion of a bubble-cap assembly in a distillation tower that channels the rising vapor and causes it to flow downward to pass through the liquid held on the bubble plate.
(civil engineering)
A board placed vertically beneath the tread of a step in a staircase.
A vertical steam, water, or gas pipe.
(geology)
A steplike topographic feature, such as a steep slope between terraces.
(metallurgy)
(petroleum engineering)
In an offshore drilling facility, a system of piping extending from the hole and terminating at the rig.
(textiles)
A raised spot in a weaving pattern where the warp traverses the weft or the filling.

riser

riser, 1
1. The vertical face of a stair step.
2. Any upright face, as of a seat, platform, etc.
3. A platform on the stage of a theater or concert hall on which a performer is placed.
4. A water-supply, drainage, gas, steam, or vent pipe which extends vertically, one full story or more, to service several branches or a group of fixtures.
5. An electrical cable which extends vertically, one full story or more, to distribute electrical power to electric panels on the different floors of a building.
6. A duct, which extends vertically, one full story or more, to distribute air to branch ducts on the different floors of a building.
7. A vertical supply pipe for a fire sprinkler system.
References in periodicals archive ?
The new monitoring tool provides the operator with instant, continuous monitoring of any subsea riser.
In many metalcasting facilities, grinding after the riser knock-off is not necessary with the metal neck breaker technology.
The 17-inch riser is available from 40-60 pounds and lengths of 58, 60, and 62 inches; the 21-inch riser is available in weights of 35-55 pounds at 62, 64, and 66 inches.
Last August, TDW used its remote-controlled SmartTrack technology to isolate the damaged riser section from the gas inventory in the export pipeline without venting or flooding the pipeline, or displacing the pipeline inventory.
The 76 mm riser is paired with a 203 mm diameter riser of the same length (10 m) in a twin riser apparatus, as shown in Figure 2.
With yesterday's systems' I/O employing PCI and PCI-X, passive riser cards have been deployed with multiple PCI (or -X) slots, as PCI is a parallel multi-drop bus architecture.
Reapply wood glue to the wedges and firmly press them into position between the tread and riser.
With almost no flex during the shot, the Tec riser recoils and vibrates less than other designs.
The wedding was supposed to take place last Saturday at Plymouth Registry Office but instead Mr Riser killed himself in a flat in Seattle.
Riser Media counts organizations such as HBO, ABC and the Fox Network as clients, but is equally comfortable with Utah's growing base of small and start-up companies, and the agency differentiates itself by providing flexible options, exceptional customer service and hands-on support.
AKER Solutions has been awarded a contract by Daewoo Shipbuilding & Marine Engineering (DSME) for the delivery of a deepwater drilling riser system to the DSME shipyard in South Korea.
Steel casters have developed their own rules for using insulating or exothermic riser sleeves based on observation or supplier product information.