| 摘要 |
A manual tong is disclosed which includes a composite belt, a handle assembly, and a jaw assembly, where the composite belt is designed to take the place of the convention linked chains used currently in manual tongs. The composite belt is held in place by a set of pins associated with the handle and jaw assemblies. Replacement of the linked chains with the composite belts improve tong safety, improve ease of use, lower cost, make adjustment easier and make belt replacement easier reducing down time and increasing tong utility so that one tong can be used for different pipe diameters by simply adjusting a length of the belt or a simple replacement of the belt with a different size belt.
|
