Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1983-08-26
1985-08-20
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51145R, 51154, 51161, 51324, B24B 2100
Patent
active
045355673
ABSTRACT:
A floppy disk burnishing and packaging machine and method including pick up, burnishing, packaging and collection assemblies. A transfer mechanism moves disks between the various assemblies and a control system coordinates the operation in each so that processing proceeds simultaneously in each according to a particular sequence. Disks are removed from a supply stack one at a time with part of that process involving curling the peripheral edge of the topmost disk upwardly away from the stack. The burnisher includes air knife hold down devices to force the disks against burnishing rolls over which burnishing tapes are moved. The air knife devices also cause a slight amount of wrapping between the disks and the burnishing rollers to increase the burnishing area. Further, the disk is oscillated during burnishing, relative to the burnishing rolls, to improve burnishing. Burnished disks are automatically packaged in protective jackets which are ejected and collected.
REFERENCES:
patent: 3253824 (1966-05-01), Southwell et al.
patent: 3465481 (1969-09-01), Szwarcman
patent: 3943666 (1976-03-01), Dion et al.
patent: 4179852 (1979-10-01), Barnett
patent: 4330910 (1982-05-01), Schachl et al.
patent: 4347689 (1982-09-01), Hammond
patent: 4412400 (1983-11-01), Hammond
IBM Technical Disclosure Bulletin, vol. 21, No. 9, Feb. 1979, G. S. Pal, "Integrated Burnish and Glide . . . Disk Process", pp. 3761-3762.
IBM Technical Disclosure Bulletin, vol. 19, No. 10, Mar. 1977, N. E. Slindee, "Burnishing Method and App. for Flexible Magnetic Disks", pp. 3829-3830.
Schmidt Frederick R.
Seaborn Development, Inc.
Zatarga J. T.
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