Sprocket mold

Details Sprocket mold Sprocket mold

1976-06-21

1978-02-14

Husar, Francis S.

Static molds

Providing substitution of alternatively used parts

249161, B29D 1500

Patent

active

040734633

ABSTRACT:
A sprocket mold system is provided for inexpensive molding of a number of different diameter sprockets each having an idential sprocket tooth size. Each tooth is formed between a pair of tooth-defining elements having accurately curved surfaces, these elements being accurately positioned in a mold insert of the desired diameter. Different mold inserts are provided for different numbers of sprocket teeth to give different diameters of final molded sprockets. A modification of the invention is adapted to the manufacture of gears. While the principles of gear design preclude the use of the same tooth-defining elements for gears of different diameters the method of forming and mounting the tooth-defining elements provides extreme accuracy of tooth molding.

REFERENCES:
patent: 337764 (1886-03-01), Gulliver
patent: 3433292 (1969-03-01), McDonald

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