Glossary


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91) C hook

A device, generally attached to the hook of a lifting device via a bail, which "grabs" a coil of materials when inserted into the ID of that coil.  Derives its name from the physical appearance of the device which resembles the letter "C".  May utilize counter- balancing weights to add stability and balance in the lifting motion.

92) Chute conveyor

The chute conveyor is the simplest example of gravity operated conveyor. Not unlike a child's sliding board, unit simply slides down a straight or spiraling metal or plastic chute to it ultimate destination.

93) Clamp

A below-the-hook attaching device which, using a jaw-like scissor gripping action, clamps or locks onto a piece of material. This device is attached to the hook of a hoist or the end effector of a manipulator and usually is used to pick up sheets of material such as wood or metal.

94) Closed shelving

Shelving with the sides and back of the unit enclosed with sheet steel side and back panels.

95) CMAA

The Crane Manufacturers Association of America, Inc. (CMAA) , an independent trade association affiliated with the United States Division of Material Handling Industry. The voluntary association of CMAA members has existed since 1955. Member companies represent industry leaders in the overhead crane market. Contact: CMAA 8720 Red Oak Blvd., Suite 201 Charlotte, NC 28217 Phone: (704) 676-1190  Fax: (704) 676-1199 Hal Vandiver, Managing Director hvandiver@mhia.org

96) Code

Also referred to as "symbolgy".  Code is a particular pattern of bars and spaces that serve to deliver information in bar code form.  Characters to be included, how these characters are to be represented, and the distance between the lines and spaces are unique to each symbology.  There are 20+ symbologies currently in use. The term "code" may also refer to standards and specifications.

97) Coil grab

Lifting devices, generally attached to a hoist or lift truck, which attach to a coil's OD via tongs or gripping mechanisms and enable the coil to be lifted without damage to the material.  May also be configured to "turn" the coil over or move it in directions other than vertical.

98) Collapsible container

A container (metal or plastic) that may be disassembled or dismantled into separate pieces or folded in order to save storage space. These types of containers can be reassembled or unfolded for future use. A container whose sidewalls collapse.

99) Collector

Electrical contacting devices providing a path for current flow from stationary conductors to moving equipment.

100) Collector shoe

The portion of a collector which makes contact by sliding on the conductor bar.

101) Collision prevention

The use of sensors to detect the presence of objects and, through the use of integrated controls, prevent a collision between two objects from occurring.

102) Column mounted jib crane

Also referred to as a "pillar-supported" jib crane.  The jib is attached to a self-supporting floor mounted or floor to ceiling mounted mast.  A column mounted jib crane may also be supported vertically by a structural column of the building structure itself.

103) Comealong

A common term for a ratchet lever hoist. See Ratchet lever hoist .

104) Commercial shelving

Shelving made from lighter gauge materials and designed to provide storage for lighter weight materials and packages.. Often carries a 350# load limit.

105) Compression molded pallet

Plastic material is placed in an open mold, which is then closed.  Pressure is applied as the mold halves come together (usually in a vertical configuration), forcing the plastic material to flow and fill the cavity.