Link 5 rotates about fixed axis x-x and is connected by a screw pair to link 3 which slides along fixed guides p-p. Link 6 rotates about fixed axis z-z and has worm a which meshes with worm wheel 2. Worm wheel 2 rotates about axis B of link 3. Rigidly attached to worm wheel 2 is bevel gear b which meshes with gear c of link 4. Link 4 is connected by screw pair D to slider 7 which has pin d sliding along slot f of link 1. Link 1 turns about fixed axis A. The mechanism adds two vectors, A͞B and B͞D. Vector A͞B is entered by displacing link 3 by means of screw 5, and vector B͞D by displacing slider 7 by means of worm gearing between links 6 and 2 and a screw drive between links 4 and 7. The resultant vector is A͞D=A͞B+B͞D.
$2256$LS,MO$