

No. .',2113 a. 



Reversing Pendulums. 



295 



I 



52110. 1:15. 



52112. 1:13. 



52113. 1:16. 



52 113 a. 1:18. 



52.108. Reversing Pendulum (Weinhold's) (W. D., p. 115 [106]), of wood, with wall bracket 



52.109. - - idem, Prick's (Fr. phys. Techn. I, 2, Fig. 3356 [Fig. 476]), Figure, iron rod 

 with 2 knife-edges and graduation, with 2 bobs (lead) and wall arm suspension . . 



52.110. - - idem, can also be used for experiments on the moment of inertia, Figure, 

 with 2 bobs each of 1 kg weight, 2 bobs each of 0.25 kg, and a small bob, with stand 

 and Cardan suspension (Fr. phys. Techn. I, 2, Fig. 3354 [I, Fig. 477]) . 



52.111. Demonstration Pendulum (reversible), of brass and iron, for showing the laws of motion 

 of the compound pendulum, swing I 1 /, seconds, with stand 



52.112. Reversing Pendulum (Kater's), simple pattern, Figure, with 1 bob and two ad- 

 justing weights, in Cardan suspension, on stand with levelling screws 



52.113. Reversing Pendulum (Kater's), Figure, well and substantially constructed: length 

 between knife-edges, exactly 1 m; the weight adjusted by micrometer screw; graduation 

 with vernier, with wall bearing and arresting device. The total length of the pendulum 

 is 1.7 m (Gan.-Man., Fig. 58). In box, without stand 



52,113 a. - - i d e m, with stand and box, Figure 



12. 0.0 

 14. 0.0 



Cl. 620, 621, 1122, 5281. 



s. d. 

 0. 9.0 



1. 0.0 



2. 8.0 

 6. 5.0 

 2.15.0 



