TEXT VERSION OF SLIDE:
Title: Pump jack
Type: Text Slide with Image
[Includes illustration of a pump jack scaffold]
Pump jacks are a uniquely designed scaffold consisting of a platform supported by moveable brackets on vertical poles. The brackets are designed to be raised and lowered in a manner similar to an automobile jack. Pump jacks are appealing for certain applications because they are easily adjusted to variable heights, and are relatively inexpensive.
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