It completed its work to replace the antiquated hemp-and-sandbag system with a more modern (though still manual) counterweight
system in September.
To study the relationship between the fundamental frequency and pre-stress value of pre-stressed concrete beams, this paper adopted the hammering method to excite concrete beams under different pre-stress values, eccentricities and counterweights
based on two kinds of methods including experiments and numerical simulation, processed and analyzed the collected mid-span acceleration of beams to quantitatively analyze the relationship between the fundamental frequency of beams and pre-stress.
Caption: As supplied by AstroPhysics, the 1100GTO includes a counterweight
shaft and GTOCP4 control box, as well as 12-volt power cables and a CD containing the user manual, PEMPro, and PulseGuide software.
On average, load charts with maximum counterweight
have improved by approximately 5% over its predecessor.
rigging was first introduced to the United States in the Chicago Auditorium in 1889, it was adopted by the Chicago scenic studios and installed into masonic theaters as early as 1904.
Because of their application, counterweights
have only a few requirements.
What surprised me was that J of Repair knew exactly how I had bent the counterweight
extension arm without me telling him how
The Boeing official insisted that the counterweights
would not emit poisonous clouds of uranium dioxide, unless they were "exposed to a fire of 800 degrees Celsius [1472 [degrees] F] for more than four hours.
Perhaps the most significant feature is a patented interactive counterweight
system designed to provide optimum weight placement at all boom angles.
The UK Environment and Transport Minister has assured residents living in the area in which a Korean Air Boeing 747 crashed that they should not be concerned about the affect of the missing uranium counterweights
A large glass wall, which can be raised on counterweights
, looks out over the fourth main space of the house, a large pool which is enclosed by the house itself on three sides, and by a garden wall at the back of the site.
The Vortek([R]) system provides greater safety by eliminating the need for crews to climb ladders and catwalks as well as eliminating the need to handle heavy counterweights
above the stage.