266 



Mechanics of Solids (Statics and Dynamics). 



NY. .'.I >-.'>hl 



51851dl. 



1 : 6. 



51 851 d 2. 

 1 : 6. 



51 851 f. 

 1 : 10. 



51 851 g. 1:4. 



51 853. 1 = 12. 



51851m. 1:6. 



(d) Tackle with aluminium pulleys, with steel axis, in brass frame: 



1) 2 Pulley Blocks, each with 3 pulleys, arranged one behind the other, Figure 



(M. T., p. 33) O.ll'. (i 



2) 2 Pulley Blocks, each with 3 pulleys, arranged alongside each other, Figure 0. 15.0 



(e) Power Tackle, 4 aluminium pulleys 0. It. 



(f ) Differential Tackle, Figure, 50 kg carrying capacity, with cast-iron pulley and 



chain, self-locking 0. 18. 



(g) Arbor Wheel, Figure, with 3 discs mounted on one axis, the diameters of the 



discs being as 1 : 2 : 3, of aluminium, with steel axis, in iron clamp: 



1) 90 mm diameter ^ 0. 9.0 



2) 120 mm diameter 0.10.0 



(h) 2 Brass Pulleys on iron cramps, with conical pivots, for the parallelogram of forces, 



Fig. 51,851, p. 265 (W. D., Fig. 69 A [62 A]), each 7 s. 6 d 0.15.0 



(i) 3 Brass Pendulums and 1 Wood Pendulum, on double threads; ratio of lengths 1:4:9 0. 

 (k) Pendulum of variable length, round steel rod with suspension and adjustable brass ball 0. 4. 

 (1) Set of Weights, comprising 20 weights of 50 g each, provided with hooks on both 

 sides, mounted in wood block, 10 of the weights being nickellcd and 10 black 



varnished, Figure 0.10.0 



(m) Hook with cramp, Figure, for suspending heavy objects, electromagnets and 



the like 0. 3. 



51.853. Stand with Apparatus for demonstrating the Laws of Meelumics, Figure ... 2. (>. o 



1 Stain! i wood), polished, with hooks; 1 Lever with steel axis in metal l>w. with steel pins 

 passing through at equal intervals apart; also 1 loose and 1 fixed pulley in metal bow; 1 Arbor Wheel 

 with :i sheaves of ratio 1 : '2 : 3; 2 Balance Pans; 1 Pendulum of variable length (brass ball on 

 double thread); G Weights of each 50 g with hooks <>n both sides. 



51.854. Universal Apparatus for demonstrating the Laws of Mechanics (as suggested by Friedr. 

 C. (1. Miillei). Figure (Xtsehr. f. d. phys. u. chem. U., 14, 1901, p. 71; M. T., 



Fig. 33) 6. 0.0 



i iiiiiprisini:: I Stand: I Suspension Device: I Ring made of 1 nun thick brass wire, .'ill cm dia- 

 meter; -2 Similar Rings, 2f> cm diameter; 1 Square and 1 Equilateral Triangle, made of the same sort, 



For Haiti Indicating Balances with Accessories for experiments <i wi. '>i 



in Static* and Mechanics, see Xos. 51 597-51 601, p. 240. Ifl7, 488, 4M, 490, BWS, 4018. 



