Description
Gear 1 has its teeth located on a spherical surface and rotates about fixed axis A. Gear 1 meshes with an identical gear 2 which rotates about axis B. Axes A and B intersect at an angle ϕ which can be varied by changing the position of pin b of link 3 along fixed circular guide a. Link 3 slides in sleeve c of gear 2. Proper tooth engagement of the gears and the required position of gear 2 with respect to gear 1 are adjusted by means of lever 4 which turns about fixed axis D. Pin e of lever 4 slides along fixed circular guide d. Angle ϕ can be changed even when the gearing is in operation. $2344$SG,3L$
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