What is "riser"

Shrinking \Shrink"ing\, a. & n. from Shrink.

Shrinking head (Founding), a body of molten metal connected with a mold for the purpose of supplying metal to compensate for the shrinkage of the casting; -- called also sinking head, and riser.

Feed \Feed\, n.

1. That which is eaten; esp., food for beasts; fodder; pasture; hay; grain, ground or whole; as, the best feed for sheep.

2. A grazing or pasture ground.
   --Shak.

3. An allowance of provender given to a horse, cow, etc.; a meal; as, a feed of corn or oats.

4. A meal, or the act of eating. [R.]

   For such pleasure till that hour At feed or fountain never had I found.
   --Milton.

5. The water supplied to steam boilers.

6. (Mach.)

   1. The motion, or act, of carrying forward the stuff to be operated upon, as cloth to the needle in a sewing machine; or of producing progressive operation upon any material or object in a machine, as, in a turning lathe, by moving the cutting tool along or in the work.

   2. The supply of material to a machine, as water to a steam boiler, coal to a furnace, or grain to a run of stones.

   3. The mechanism by which the action of feeding is produced; a feed motion. Feed bag, a nose bag containing feed for a horse or mule. Feed cloth, an apron for leading cotton, wool, or other fiber, into a machine, as for carding, etc. Feed door, a door to a furnace, by which to supply coal. Feed head.

      1. A cistern for feeding water by gravity to a steam boiler.

      2. (Founding) An excess of metal above a mold, which serves to render the casting more compact by its pressure; -- also called a riser, deadhead, or simply feed or head --Knight. Feed heater.

         1. (Steam Engine) A vessel in which the feed water for the boiler is heated, usually by exhaust steam.

         2. A boiler or kettle in which is heated food for stock.

            Feed motion, or Feed gear (Mach.), the train of mechanism that gives motion to the part that directly produces the feed in a machine.

            Feed pipe, a pipe for supplying the boiler of a steam engine, etc., with water.

            Feed pump, a force pump for supplying water to a steam boiler, etc.

            Feed regulator, a device for graduating the operation of a feeder.
            --Knight.

            Feed screw, in lathes, a long screw employed to impart a regular motion to a tool rest or tool, or to the work.

            Feed water, water supplied to a steam boiler, etc.

            Feed wheel (Mach.), a kind of feeder. See Feeder, n., 8.

late 14c., "rebel," agent noun from rise (v.). Meaning "one who rises" (from bed, in a certain manner) is mid-15c. Meaning "upright part of a step" is from 1771.

n. 1 Someone or something which rises. 2 A platform or stand used to lift or elevate something. 3 The vertical part of a step on a staircase. 4 (context archery English) The main body of a bow. 5 A conduit or path between floors of a building for placement of telephone, networking, and other utility cables. 6 Pipe connecting an individual exhaust port of an internal combustion engine to the muffler, particularly on aircraft. 7 A Manx cat with a showable short tail.

1. n. a person who rises (especially from bed); "he's usually a late riser"

2. a vertical pipe in a building [syn: riser pipe, riser pipeline, riser main]

3. structural member consisting of the vertical part of a stair or step

Riser may refer to:

Riser (stylized RISER) is the seventh studio album by American country music singer Dierks Bentley. It was released on February 25, 2014, by Capitol Nashville, and debuted at number 6 on the Billboard 200, becoming his seventh top ten album. The album was nominated for Best Country Album at the 57th Annual Grammy Awards.

"Riser" is a song recorded by American country music artist Dierks Bentley. It was released to radio on June 15, 2015 as the fifth and final single from his seventh studio album of the same name. The song was written by Travis Meadows and Steve Moakler.

A riser, also known as a feeder, is a reservoir built into a metal casting mold to prevent cavities due to shrinkage. Most metals are less dense as a liquid than as a solid so castings shrink upon cooling, which can leave a void at the last point to solidify. Risers prevent this by providing molten metal to the casting as it solidifies, so that the cavity forms in the riser and not the casting. Risers are not effective on materials that have a large freezing range, because directional solidification is not possible. They are also not needed for casting processes that utilized pressure to fill the mold cavity. A feeder operated by a treadle is called an underfeeder.

The activity of planning of how a casting will be gated and risered is called foundry methoding or foundry engineering.