338 



Equilibrium of Liquids. 



No. 52 467 



52 467. 1 : 7. 



52468. 1:11. 



52469. 1:13. 



52.467. Hydraulic Press, Figure, with lever, arranged so as to be rotary, for moving same 

 from any side; arranged for breaking wood rods, etc 



52.468. Hydraulic Press for Compression and Lift, on wood stand, with safety valve, pressure 

 gauge and hook for weights, Figure 



The press is mounted on a thick oak stand, is of the same type and efficiency as No. 52,461, 

 and is intended to be used for showing the considerable loads which can be lifted by means of the press. 



52.469. Hydraulic Press, for Compression, Lift and Extension, with iron frame, Figure, 

 with safety valve and pressure gauge, suitable for strength tests 



The press has a massive iron frame and is fitted with two stout clamps for gripping wires, bands, 

 etc. in elasticity experiments. Type and efficiency as in No. 52,461. Iron wire 7 mm in diameter 

 can easily be broken in the press. 



52.470. Model for explaining the Hydraulic Press, Figure, of glass in metal frame, 

 lifting 100 g 



52.471. i d e m, without framework 



52.472. --idem, as No. 52,470, Double Size, with mount and vessel 



52.473. Rubber Vessel, for showing the Increase of Pressure downwards, Figure (W. D., 

 Fig. 109 [98]), to be filled with mercury 



52.474. Sheet Iron Cylinder with holes at different heights, Figure, for showing the in- 

 crease of pressure downwards (W. D., Fig. 108 [97]) 



s. d. 

 6. 0.0 



18.10.0 



22. 10. 



(I. 11'. 



0. 3.6 

 1.10.0 



0. 8.0 

 0. 6.0 



Cli l'i'8. 710, 711. 



