No. 52340. 



Toothed Gears. 



323 



52 333. 1 : 4. 



52 338. 1 : 7. 



^ 



52 335. 1 : 3. 



52339. 1 : 12. 



52 340. 1 : 6. 



>2,330. Two Pairs of Wheels with Screw Toothing, 1 pair for right hand and 1 pair for left 

 hand motion, driven by 1 shaft 



The axes of ihe screw wheels of each pair are perpendicular to each other, the driven wheels 

 rotating in opposite directions. 



52,331. Two Wheels with Screw Toothing, with inclining axes, Figure 



52.332. Model Table of the Worm, with Worm-Wheel, Figure, comprising a movable 

 model and constructional drawing 



52.333. Worm and Wheel, very neatly constructed of wood, Figure 



52.334. --idem, of metal, simple, with V-thread, wheel with flat faced teeth 



"2,335. - - idem, with flat, double thread; wheel with concave teeth, Figure . . . . 



52.336. Worm with Square Thread, large; brass wheel 10 cm diameter with concave teeth 



52.337. - - idem, with V-thread, large, brass worm wheel with concave teeth 



52.338. Double-Thread Worm, large, Figure 



5i'.:j39. Screw Thread with Worm, in cylindrical casing, Figure 



52.. '540. Hyperbolical Toothed Wheels with inclining axes, Figure 



01. 3790, 554, 

 555, 

 556, 3633 



S. d. 



12. 0.0 



6. 0.0 



3. 4.0 

 0.12.0 

 1. 0.0 

 1.16.0 

 3. 0.0 

 3. 0.0 

 3. 0.0 

 2.10.0 

 12. 0.0 



21* 



