pipe clamp
Large press comprising a metal pipe supporting a jaw and a tail stop.
jaw 
Movable part for pressing more objects against the tail stop.
handle 
Sliding bar that adjusts the screw to slide the tail stop’s jaw up or down the pipe.
tail stop 
Movable jaw whose motion along the pipe quickly adjusts the tool to the length of the object to be clamped.
locking lever 
Handle that fixes the tail stop at the desired position on the pipe.
pipe 
Hollow cylinder of varying length, along which the jaw and the tail stop slide.
clamping screw 
Threaded shank whose rotation, controlled by the clamping lever, causes the jaw to slide along the pipe to or from the object to be clamped.