2. 外语
  3. Directions: The following is a patent. After reading it, you should give brief answers to the 5 questions (No. 56 through No. 60

Directions: The following is a patent. After reading it, you should give brief answers to the 5 questions (No. 56 through No. 60

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问题     Directions: The following is a patent. After reading it, you should give brief answers to the 5 questions (No. 56 through No. 60) that follow. The answers should be no more than 3 words. They should be written after the corresponding numbers on the Answer Sheet.
    United States Patent[19]                                           [11]     4,044,808
    Kolonia                                                           [45]     Aug. 30, 1977
[54] SPLITTING ASSEMBLY                              
[76] Inventor: Robert A. Kolonia, RD No. 3, Box 318, Agnes Lane, Milford, N. J. 08848                                            
[21] Appl. No: 688, 287                                 
[22] Filed: May 20,1976                              
[55]Int. C1. …… A47J 4/02; B26B 23/00;               
                                 B27L 7/00              
[52]U.S. C1. …… 145/2R;144/193 C;                  
[58]Field of Search …… 145/2; 144/193 C;            
                                 144/193 D              
[56]  References Cited
        U.S. PATENT DOCUMENTS
    561,000 5/1896  Karns ……… 145/2R
    1,272,538  7/1918  Sandidge …… 145/2R
    3,749,365  7/1973  Van Gompel  … 254/104
    3,865,163  2/1975  Root …… 144/193A
    3,982,572  9/1976  Kortendick …… 254/104
    FOREIGN PATENT DOCUMENTS
    579,743  9/1925  France …… 145/2R
    3,925  6/1919  Netherlands …… 145/2R
    Primary Examiner-James L. Jones, Jr.
    Assistant Examiner-J. T. Zatarga
    Attorney, Agent, or Fim-King, Price & Markva
[57]         ABSTARCT
    The device comprises a head portion having a cutting edge with a pair of lever members mounted on opposing sides of the head portion. The lever members are pivotally (枢轴的 ) mounted at one end thereof to move in a crossed relationship with respect to each other and to swing the outer end thereof from resting position outwardly with respect to the head portion. The outer end of each lever member has a structural configuration effective to cause the swinging movement of the lever members upon contact with the’ object to be split. The outer end of each lever member contacts the object immediately after the cutting edge contacts the object. The lever members are effective to provide forces via their end portions against opposing sides of a cut formed by the utting edge and thereby enhance splitting of the object against which the cutting edge had been thrust. The  lever members are mounted to bosses directly attached to the head portion.
    14 Claims, 7 Drawing Figures
选项
答案a head portion
解析 从Abstract中的第一句可知。
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