

Lever Apparatus, Arbor Wheel, Tackle, Pulleys. 



271 



51891. 1 : 14. 



51 894. 1 : 12. 



51895. 1:11. 



51896. 1:11. 



1.894. Tackle Frame, of iron, Figure, strongly constructed, with outfit 



1 Frame; 1 set Tackle, consisting of 2 blocks each with 3 pulleys in series; 1 set Tackle of two 

 blocks of each 3 pulleys placed in parallel; 1 set Differential Tackle, of metal; 6 loose Pulleys for 

 forming the power tackle and other combinations of pulleys. 



1.895. Power Tackle with 4 iron pulleys, Figure, massively constructed 



1,896. Tackle with 2 iron blocks, each with 3 pulleys in parallel, Figure, massively con- 

 structed 



1.898. Differential Tackle, massively constructed, lifting power 100 kg, also adapted as a 

 model for instruction in mechanics, cf. Fig. 51,851 f 



1.899. 6 Loose Pulleys, of iron, for setting up the power tackle and other combinations 

 of pulleys. Each 4 s. d. . 



s. d. 

 4. 0.0 



0.18.0 

 0.18.0 

 2. 0.0 

 1. 4.0 



See also Pulleys, Tackle, etc. on pp. 265 and 266, 

 and Screw Tackle No. 50,116, p. 21. 



in. :i:io2. 4r,44. 



Ml. MX. 50il. 



