RBI HYDRAULIC BREAKER USER MANUAL. 2. How the Tool Breaks Rock. The following paragraphs describe what happens to break rock when the piston strikes the tool. (A)Contact-Initial Compression Stress Wave. When the piston (1) strikes the top of the tool (2), it sends a compressive stress wave (3) down to the.
And Counter means counter, exactly as in English. Poise means weight. So the word literally means counterweight and that is what a counterpoise is in an antenna system, where it was originally used. Simply put, a ground plane that the antenna system could mirror itself in.
AN/TRC-77 driving the antenna. Above: The radiating element here is a 25 foot long, bare copper stranded âslant wireâ up into a tree. The counterpoise consists of two 50 foot pieces of WD-1/TT infantry field telephone wires connected to the setâs Ground post. The ground wires are spread about 90 degrees apart.