Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent
1977-10-31
1979-04-10
Scott, Samuel
Machine element or mechanism
Gearing
Toothed gear and recirculated unconnected elements
74457, 74462, 74229, F16H 5508
Patent
active
041482255
ABSTRACT:
A sprocket for use with positive drive belts of the type with oppositely facing curvilinear driving surfaces, the sprocket having improved symmetrical teeth with a cross-section profile defined by axially oriented, oppositely facing driving surface portions that extend from the top land of the tooth at an angle of about 15 degrees or less to the sprocket tooth, each driving surface of the sprocket tooth blending into an oppositely facing oblique surface at an angle of about 150 to about 170 degrees that provides a positive clearance between the sprocket tooth and side portions of a meshing belt tooth to direct egress of material away from the sprocket, the oblique surfaces define a sprocket tooth base that is wider than the sprocket tooth top land and bottom land portions between sprocket teeth providing positive clearance between the bottom land portions and belt tooth tips.
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Redmond, Jr. John D.
Tone Robert P.
Castleman, Jr. Curtis H.
Fink Raymond
Henderson William R.
Oberg, Jr. H. W.
Scott Samuel
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