University Daily Kansan, November 4, 1981 Page 3 MARK McDONALDIKansan Staff Night life While others are done with a day's worth of classes, many KU students still have a day of academics ahead of them in classrooms like this one in Lippincott Hall. Concrete may help end skywalk mystery Find it in Kansan classified advertising Sell it, too.Call 864-4358. Edward Pfrang, who heads the investigation, said the bureau would load 10 pieces of metal and as many as 40 cores of concrete tomorrow into a Washington-bound van-in all about 1,000 to 1,400 pounds of material. By United Press International "We're taking relatively little material out of the warehouse," said Pfrag. He said he planned to cut away two pieces of the box beams from the fallen skywalks and one entire beam from the undamaged third-floor span. workers in to gather the debris that is considered critical evidence in more than $3 billion in lawsuits resulting from the July 17 collapse of two skywalks that killed 113 people and injured 186 others. KANSAS CITY, Mo. — A nine-man team of workers from the National Bureau of Standards has begun collecting samples from the remains of the fallen Hyatt Regency Hotel skywalks to determine the cause of the city's worst firebombing. As reporters and investigators from the NBS observed yesterday, workers sliced a meticulously measured and labeled chunk of metal from a box beam, part of the skeleton of a fallen skywalk. It had taken a court order to open the padlocked warehouse and permit the Ex-attorney says Cardinal's lawyers hampering inquiry By United Press International CHICAGO--Attorneys for Cardinal P. John C, head of the Roman Catholic Archdiocese of Chicago, refused to cooperate with a federal grand jury investigation into Cod's possible misuse in church funds, federal authorities say. Charles B. Renfrew, former deputy U.S. attorney general, said the cardinal's attorneys consistently hampered investigative efforts by the former U.S. attorney in Chicago, Thomas P. Sullivan. The cardinal is being investigated for allegedly diverting as much as $1 million in tax-exempt church funds to a church, Helen Dellan Wilson, of St. Louis. Cuba fears attack by U.S. Renfrew, the No. 2 man in the Justice Department during the Carter administration, said Cody's lawyers, despite repeated requests by Sullivan, did not provide the government with documentation regarding the "source and nature of bank accounts" controlled by the cardinal. By United Press International MEXICO CITY—Cuba is preparing its armed forces and even mounting anti-aircraft guns on top of buildings in Havana to defend the communist island from a feared invasion, a Mexico City newspaper said. The government, in a war fever apparently signaled by a Cuban newspaper, restricted regular army troops to their barracks and called for the reserves, the Mexico City newspaper Man Uso Mas observed yesterday. Cuba's Communist Party newspaper Granma said in an editorial Monday that recent U.S. "aggressions and lies" were a prelude to an American invasion of Fidel Castro's communist nation. The United States has not commented on the charge. Secretary of State Alexander Haig said Friday he gave President Reagan a speech that could be taken against Cuba, accused that could be taken against Cuba, supplied by the White House of supply. ing military advisors and arms to Salvadoran leftists. Uno Mao Uno, in a story from Havana, said tension was rising in the Cuban capital with loudspeakers blaring "revolutionary marches" to cunt-controlled newspapers urging Cubans to defend their independence. Trucks normally used to transport food were diverted to aid the mobilization of reserves, Uno Mas Uno said, lengthening the traditional lines around grocery stores and gasoline stations. Anti-aircraft guns were installed on rooftops in the capital. Neither the Cuban government nor the nation's official Prensa Latina News Agency commented on the alleged mobilization and Cuba's Mexico City embassy could not be reached for comment. The Grannie editorial was carried in its full 2,000-word text by Prensa Latina, a sign the article was an official government statement, possibly written by Fidel Castro himself, some Mexico City observers said. Lined up in neat rows behind Prfring were 10 big sections of what had once been skywalks—walkways suspended across the Hyatt's joby. Sections from the third-floor walkway—the one that didn't fall—looked out of place with their glass panels and shiny golden handrails. The salvaged remains of the second and fourth-floor skywalks, which had been hung together, are preserved as they were the night they fell, some parts smashed in the crash, others torn away by desperate rescuers. The cones were left on the walls and shards of glass, bloodied carpet and crumpled paper Red Cross cups. The NBS, asked by Mayor Richard Berkley to investigate the disaster, pressed its request for samples because it said analysis of the actual beams was to determine their resistance to the suspension roils' pull-through loads. The NBS also will take plastic molds of fracture surfaces. Investigators intend to examine the molds with a scanning electron microscope that would magnify the image as much as 30,000 times. The bureau, to determine steel grade and yield strength, also was cutting off lengths of the slender steel rods from which the skywalks had been suspended from the roof of the four-story atrium. The cores of concrete would be taken, Pfrang said, to establish the average weight of the decks. Pfring said the samples and molds would aid the NBS in evaluating models already constructed in its effort to determine in what sequence the skywalks fell and what forces caused them to give way. "It is a way of tying down the data we have already developed and the data we will be developing," Prang said. 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