Parts
The long horizontal slats are held one above the other by the rungs of ladder cords shaped like a ladder. The lower ends of the legs of the ladder cords are secured to the long rail under the slats. Their upper ends are attached to the drive rod in the housing, the elongated box above the slats. As the drive rod rotates, one leg of each ladder cord moves up while the other moves down, causing the angle of the slats to change. In one design, this rotation is achieved by pushing up or pulling down on a long handle called a tilt wand connected to the drive rod by a lever. Lift cords along the ladder cords are also attached to the rail. They pass through holes in the slats and into the housing above, where they go over pulleys, combine and exit through the cord lock. For safety it's important that the lock always work. A downward pull on the main lift cord raises the slats by the cords pulling up the rail below the slats. The cord lock holds the main lift cord to keep the slats up until the cord is pulled to release the lock. The safety lock made the cord lock easier to use.
Read more about this topic: Mini Blind
Famous quotes containing the word parts:
“Beauty that shocks you, parts that none will trust,
Wit that can creep, and pride that licks the dust.”
—Alexander Pope (1688–1744)
“We have seen that men are learning that work, productivity, and marriage may be very important parts of life, but they are not its whole cloth. The rest of the fabric is made of nurturing relationships, especially those with children—relationships which are intimate, trusting, humane, complex, and full of care.”
—Kyle D. Pruett (20th century)
“Being in a family is like being in a play. Each birth order position is like a different part in a play, with distinct and separate characteristics for each part. Therefore, if one sibling has already filled a part, such as the good child, other siblings may feel they have to find other parts to play, such as rebellious child, academic child, athletic child, social child, and so on.”
—Jane Nelson (20th century)