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.
Counter-torque: A method of control by which the motor is reversed to develop power to the opposite direction. Glossary of Crane Terminology-Page 2 of 11. EMH, Inc. l 550 Crane Drive l Valley City, OH 44280 l Phone (800) 283-8025 Cover Plate: The top or bottom plate of a box girder.