The company that operated a former bowling alley in Lawrence is denying negligence asserted in a lawsuit brought by a rural Lawrence woman and her husband. Tower Inc., which operated Royal Lanes, 3300 Iowa, denies it was negligent in an alleged accident in which Mary Willems claims she fell on ice in the bowling alley's parking lot on Dec. 30, 1990. Willems claimed she broke her leg in the accident and the bowling alley was at fault for not removing ice from the parking lot. In its answer, Tower Inc. asserts Mrs. Willems was "careless and negligent" and either caused or contributed to her injuries. Mrs. Willems and her husband, Hendrik, are seeking more than $50,000 each in their suit.