2 sets (4 clamps total) available. Each listing is for 2 clamps. The two side bars are c-shaped and measure approx. The clamp plates that hold the material are approx.
3" X 5" and 1/4 thick. Working distance between is 36" easily and possibly up to 40". The bottom plate moves and locks into the holes in the center bar with a spring latch mechanism. Then you tighten it with the turn handle to desired pressure.
I really like the design. When laying flat with the jaws open there are hooks on the bottom side which would grab the edge of a work table. This way with 2-4 clamps in operation on a square table you can easily square your piece.
These may have originally been designed to make large flat multi wood pieces that had to be glued together. If you needed a 36 flat solid wood panel for a door, tabletop, or a Boos Block style cutting board/table these would do the trick. The item "Set of 2 Vintage Heavy Duty Steel bar Clamp 38 (Maybe up to 40) (Jorgensen)" is in sale since Sunday, April 29, 2018. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Workholding & Toolholding\Workholding\Clamps". The seller is "goodguys101" and is located in Bogart, Georgia.This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion.