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US 4,356,948 AGranted
Truss assembly unit
AssigneeIrwin J. Berlin
InventorAlbert Bardenstein
Life of this patent
Estimating the term…
Abstract
An apparatus is disclosed for forming building trusses. The apparatus includes a clamp for each section of lumber of the truss along with a plate press mechanism for each joint of the truss. The press mechanism serves to press nails through joint plates on opposite sides of each truss joint.
Claims7
An apparatus for forming a truss having at least one joint defined by the intersection of at least two sections of lumber, said joint being formed by a pair of opposed plates each of which is nailed to each of said lumber sections, said apparatus comprising:
- means for holding each of said sections of lumber in position to form said joint;
- said holding means including a pair of spaced apart clamp members positioned at the top of vertical support members, means for securing a stack of lumber between said support members, and means for lifting said stack toward said clamp members;
- means for positioning said plates on opposite sides of said joint;
- and,
- means for pressing nails prepositioned in said plates into said sections.
2 more elements
Dependencies are inferred from the claim text.