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                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549
                                  Schedule 13G
                   Under the Securities Exchange Act of 1934
                                Amendment No. 11


                         Mine Safety Appliances Company                         
______________________________________________________________________________
                                (Name of Issuer)

                                 Common Stock
______________________________________________________________________________
                         (Title of Class of Securities)

                                  602720104
______________________________________________________________________________
                                 (CUSIP Number)

Check the following box if a fee is being paid with this statement
CUSIP No.

    1)   Names of Reporting Persons S.S. or I.R.S. Identification Nos. of above
         persons
           PNC Bank Corp.   25-143-5979


    2)   Check the Appropriate Box if a Member of a Group (See Instructions)
         a) 
         b)

    3)   SEC USE ONLY


    4)   Citizenship or Place of Organization  Pennsylvania


  Number of Shares             5) Sole Voting Power                      60,804
  Beneficially Owned     
  By Each Reporting
  Person With                  6) Shared Voting Power                   607,633 


                               7) Sole Dispositive Power                326,676

                             
                               8) Shared Dispositive Power              328,529 
                                                             


    9)  Aggregate Amount Beneficially Owned by Each Reporting Person
                                                                        668,437


   10)   Check if the Aggregate Amount in Row (9) Excludes Certain Shares
          (See Instructions)


   11) Percent of Class Represented by Amount in Row (9)                  11.36


   12) Type of Reporting Person (See Instructions)                          HC




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                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549
                                  Schedule 13G
                   Under the Securities Exchange Act of 1934
                                Amendment No. 11


                         Mine Safety Appliances Company
______________________________________________________________________________
                                (Name of Issuer)

                                 Common Stock
______________________________________________________________________________
                         (Title of Class of Securities)

                                  602720104
______________________________________________________________________________
                                 (CUSIP Number)

Check the following box if a fee is being paid with this statement
CUSIP No.

    1)   Names of Reporting Persons S.S. or I.R.S. Identification Nos. of
         above persons 
           PNC Bancorp, Inc.  51-0326854


    2)   Check the Appropriate Box if a Member of a Group (See Instructions)
         a)
         b)

    3)   SEC USE ONLY


    4)  Citizenship or Place of Organization  Delaware


   Number of Shares         5) Sole Voting Power                         60,804
   Beneficially Owned
   By Each Reporting
   Person With              6) Shared Voting Power                      607,633


                            7) Sole Dispositive Power                   326,676


                            8) Shared Dispositive Power                 328,529


    9)  Aggregate Amount Beneficially Owned by Each Reporting Person
                                                                        668,437


   10)   Check if the Aggregate Amount in Row (9) Excludes Certain
         Shares (See Instructions)


    11) Percent of Class Represented by Amount in Row (9)                 11.36

    12) Type of Reporting Person (See Instructions)                          HC





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                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549
                                  Schedule 13G
                   Under the Securities Exchange Act of 1934
                               Amendment No. 10

                        Mine Safety Appliances Company
______________________________________________________________________________
                                (Name of Issuer)

                                 Common Stock
______________________________________________________________________________
                         (Title of Class of Securities)

                                  602720104
______________________________________________________________________________
                                 (CUSIP Number)

Check the following box if a fee is being paid with this statement 
CUSIP No. 

    1)   Names of Reporting Persons S.S. or I.R.S. Identification Nos. of above
         persons
           PNC Bank, National Association   25-1197336


    2)   Check the Appropriate Box if a Member of a Group (See Instructions)
         a) 
         b)

    3)   SEC USE ONLY


    4)   Citizenship or Place of Organization  United States


  Number of Shares             5) Sole Voting Power                      59,804
  Beneficially Owned     
  By Each Reporting
  Person With                  6) Shared Voting Power                   607,633


                               7) Sole Dispositive Power                326,676

                             
                               8) Shared Dispositive Power              340,853


    9)  Aggregate Amount Beneficially Owned by Each Reporting Person
                                                                        667,529


   10)   Check if the Aggregate Amount in Row (9) Excludes Certain Shares
          (See Instructions)


   11) Percent of Class Represented by Amount in Row (9)                  11.34


   12) Type of Reporting Person (See Instructions)                           BK

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   Item 4 - Ownership:
      (a) Amount Beneficially Owned:
                                                                        668,437


      (b) Percent of Class:
                                                                          11.36


      (c) Number of shares to which such person has:
          (i) sole power to vote or to direct the vote                   60,804
          (ii) shared power to vote or to direct the vote               607,633
          (iii) sole power to dispose or to direct the disposition of   326,676
          (iv) shared power to dispose or to direct the disposition of  328,529


   Item 7 - Identification and Classification of the Subsidiary Which Acquired
   Security Being Reported on by the Parent Holding Company:

   Included are the following subsidiaries of PNC Bank Corp. - HC :

   PNC Bancorp, Inc. - HC (wholly owned subsidiary of PNC Bank Corp.)

   PNC Bank, N.A. - BK (wholly owned subsidiary of PNC Bancorp, Inc.)

   PNC Bank, Ohio, National Association - BK (wholly owned subsidiary of
   PNC Bancorp, Inc.)

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         Item 10 - Certification.

            By signing below I certify that, to the best of my knowledge and
         belief, the securities referred to above were acquired in the ordinary
         course of business and were not acquired for the purpose of and do not
         have the effect of changing or influencing the control of the issuer
         of such securities and were not acquired in connection with or as a
         participant in any transaction having such purposes or effect.



         Signature.

            After reasonable inquiry and to the best of my knowledge and
         belief, I certify that the information set forth in this statement is
         true, complete and correct.



         February 14, 1995
         _____________________________________________________________________
         Date

         /s/ William F. Strome
         _____________________________________________________________________
         Signature - PNC Bank Corp.


         William F. Strome, Senior Vice President           
         _____________________________________________________________________
         Name/Title 






         February 14, 1995
         _____________________________________________________________________
         Date


         /s/ Paul L. Audet
         _____________________________________________________________________
         Signature - PNC Bancorp, Inc.

         Paul L. Audet, Vice President
         _____________________________________________________________________
         Name/Title 




         February 14, 1995
         _____________________________________________________________________
         Date


         /s/ William F. Strome
         _____________________________________________________________________
         Signature - PNC Bank, National Association


         William F. Strome, Senior Vice President
         _____________________________________________________________________
         Name/Title 




         February 14, 1995
         _____________________________________________________________________
         Date


         /s/ Edward V. Arbaugh, III
         _____________________________________________________________________
         Signature - PNC Bank, Ohio, National Association


         Edward V. Arbaugh, III, Chief Investment Officer and Senior
         Vice President
         _____________________________________________________________________
         Name/Title 

                     See Agreement Attached as Exhibit A
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                                  AGREEMENT                           EXHIBIT A

                               February 9, 1995

        The undersigned hereby agree to file a joint statement on Schedule 13G
under the Securities Exchange Act of 1934 (the "Act") in connection with their
beneficial ownership of common stock issued by Mine Safety Appliances Company.

        Each of the undersigned states that it is entitled to individually use
Schedule 13G pursuant to Rule 13d-1(c) of the Act.

        Each of the undersigned is responsible for the timely filing of the
statement and any amendments thereto, and for the completeness and accuracy of
the information concerning each of them contained therein but none is
responsible for the completeness or accuracy of the information concerning the
others.

                          PNC BANK CORP.


                          BY:  /s/ William F. Strome
                              ________________________________________
                               William F. Strome, Senior Vice President


                          PNC BANCORP, INC.


                          BY:  /s/ Paul L. Audet
                              ________________________________________
                               Paul L. Audet, Vice President


                          PNC BANK, NATIONAL ASSOCIATION


                          BY:  /s/ William F. Strome
                              ________________________________________
                               William F. Strome, Senior Vice President


                          PNC BANK, OHIO, NATIONAL ASSOCIATION


                          BY:  /s/ Edward V. Arbaugh
                              ________________________________________
                               Edward V. Arbaugh, III, Chief Investment
                               Officer and Senior Vice President