| Two additional octave couplers support the swell organ so that the tonal resources can be used to full advantage. |
| This dramatically reduces the materials needed, since it's easier to bend bars than to use mechanical couplers or splicing-in short bent sections that waste material. |
| The cars are semi-permanently connected by drawbars instead of couplers, so the noise of banging buffer plates and diaphragms is eliminated. |
| The masonry units require steel post tension rods, anchor bolts, steel plates, and couplers for installation. |
| It is perfect for storing paper towels to use to clean up hands or to wipe the dirt and grime from hydraulic couplers. |
| The incorporation of a variable iris diaphragm into the optical couplers allows the power of the beams to be independently set. |
