SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C.  20549

                   ___________________________________________


                                    FORM 8-K

                                 CURRENT REPORT



                       Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934



                                 Date of Report
                       (Date of earliest event reported):

                                  May 22, 1997

                    ________________________________________


                              THERMO FIBERTEK INC.
             (Exact name of Registrant as specified in its charter)


   Delaware                        1-11406                          52-1762325
   (State or other               (Commission                  (I.R.S. Employer
   jurisdiction of               File Number)           Identification Number)
   incorporation or
   organization)


   81 Wyman Street
   Waltham, Massachusetts                                           02254-9046
   (Address of principal executive offices)                         (Zip Code)


                                 (617) 622-1000
                         (Registrant's telephone number
                              including area code)
PAGE






   Item 2.  Acquisition or Disposition of Assets
            ------------------------------------



        On May 22, 1997, Thermo Fibertek Inc. (the "Company") acquired the
   stock preparation business (the "Business") of The Black Clawson Company
   ("Black Clawson") and its affiliates for approximately $108,000,000 in
   cash.  The purchase price is subject to a post-closing adjustment equal to
   the amount by which the net tangible assets of the Business as of the
   closing date are greater or less than, as the case may be, certain target
   amounts set forth in the Asset Purchase Agreement dated as of May 22, 1997
   between the Company, and certain of its affiliates, and Black Clawson, and
   certain of its affiliates (the "Agreement").

        The purchase price was based upon the Company's determination of the
   fair value of the Business, and the terms of the Agreement were determined
   by arms-length negotiation among the parties.  To finance the acquisition,
   the Company utilized approximately $8 million of available cash and
   approximately $100 million of borrowings from Thermo Electron Corporation
   ("Thermo Electron"), the Company's majority stockholder.  The indebtedness
   to Thermo Electron bears interest at a rate equal to the 90-day Commercial
   Paper Composite Rate plus 25 basis points, set at the beginning of each
   quarter, and is due January 5, 1999.

        The Company has no present intention to use the plant, equipment or
   other physical property acquired for purposes materially different from the
   purposes for which such assets were used prior to the acquisition.
   However, the Company will review the Business and its assets, corporate
   structure, capitalization, operations, properties, policies, management and
   personnel.  After completion of this review, the Company may develop
   alternative plans or proposals, including mergers, transfers of a material
   amount of assets or other transactions or changes relating to the Business.


   Item 7.   Financial Statements, Pro Forma Combined Condensed Financial
             ------------------------------------------------------------
             Information and Exhibits
             ------------------------

            (a) Financial Statements of Business Acquired.  To be filed by
                amendment no later than July 21, 1997.

            (b) Pro Forma Combined Condensed Financial Information.  To be
                filed by amendment no later than July 21, 1997.

            (c) Exhibits

                2.1 Asset Purchase Agreement dated as of May 22, 1997  among  
                    BC Acquisition Corp., Thermo Fibertek Inc., The Black    
                    Clawson Company, Black Clawson Shortle Mfg. Co. Inc.,    
                    Black Clawson International Ltd., Black Clawson Canada   
                    Fibre Processing Ltd., Black Clawson Europe S.A. and Carl
                    C. Landegger.  Pursuant to Item 601(b)(2) of regulation  
                    S-K, schedules and exhibits to this Agreement have been  
                    omitted.  The Company hereby undertakes to furnish       
                    supplementally a copy of such schedules and exhibits to  
                    the Commission upon request. 


PAGE





                               SIGNATURES

        Pursuant to the requirements of the Securities Exchange Act of 1934,
   the Registrant has duly caused this report to be signed on its behalf by
   the undersigned thereunto duly authorized, on this __st day of May, 1997.



                                             THERMO BIOANALYSIS CORPORATION 


                                             By: /s/ Jonathan W. Painter
                                                 -----------------------
                                                 Jonathan W. Painter
                                                 Treasurer





   AA971500022