United States Patent [19] [li] Patent Number: 4,489,871
Bakermans et al. [45] Date of Patent: Dec. 25, 1984
[54] STRIP FEEDING APPARATUS
[75] Inventors: Johannes C. W. Bakermans,
Harrisburg, Pa.; Dimitry G. Grabbe,
Lisbon Falls, Me.
[73] Assignee: AMP Incorporated, Harrisburg, Pa.
[21] Appl. No.: 444,291
[22] Filed: Nov. 24, 1982
[51] Int. C1.3 G03B 1/18; B65H 17/24
[52] U.S. CI 226/52; 226/168
[58] Field of Search 226/1, 6, 52, 53, 76,
226/86; 355/29; 72/405, 419; 242/47.11; 83/340, 671, 672, 917, 516; 198/413, 475, 625,
679
[56] References Cited
U.S. PATENT DOCUMENTS
198,416 12/1877 Sanford .
1,733,812 10/1929 MacRae .
3,788,640 1/1974 Stemmle 271/64
3,807,215 4/1974 Olsen et al 72/405
3,842,961 10/1974 Burson et al 198/16 R
3,942,788 3/1976 Boyle 226/168
3,948,128 4/1976 Russell 83/110
3,982,457 9/1976 Berry 83/517
4,079,633 3/1978 Cheema et al 74/229
4,115,000 9/1978 Mischo et al 355/29
FOREIGN PATENT DOCUMENTS 1164185 2/1964 Fed. Rep. of Germany .
OTHER PUBLICATIONS
Daniels, "Process in Search of a Product: Forms Metal at 4,500 SPM", Metalworking Economics, Nov. 1969, pp. 125-127.
Primary Examiner—Leonard D. Christian
Attorney, Agent, or Firm—F. W. Raring; Donald M.
Boles
[57] ABSTRACT
Strip feeding apparatus comprises a feed screw having a feeding thread on its surface. The thread is received in notches in one edge of the strip so that rotation of the screw advances the strip. Guides are provided for guiding the strip along the feed path and maintaining the strip in engagement with the thread. The thread may have a portion of each turn which causes no feeding during each revolution so that strip is fed intermittently. The feeding apparatus may be used under a wide variety of circumstances and is disclosed in conjunction with a stamping and forming or similar machine.
22 Claims, 18 Drawing Figures
