VopuJar ScicNcc Moiil/ili/ 



(1(17 



To Lock the Ends of a Belt, Slip a Pin 

 Through Two Registering Holes 



SIMPLE in construction, easily attached 

 and quickly disconnected is a new- 

 belt connector which consists of a hinge 

 with a removable pin. One half of the 

 hinge is riveted to 

 one end of the belt, 

 and the other half 

 to the other end. 

 After the belt has 

 been placed over the 

 pulleys, the two ends 

 are brought together, 

 and a rawhide pin 

 is pushed through 

 the alined holes of 

 the hinge. The belt 

 can easily be re- 

 moved by removing 

 the rawhide pin 

 which holds the two parts of the hinge 

 together. The connector provides a flat 

 and flexible, yet sufficiently strong joint 

 for narrow belts. 



Push in the pin and the btlt connection 

 is made, forming a strong, flexible joint 



Watertight Compartments to Pro- 

 tect Ships From U-Boats 



THE submarine war which Germany 

 is conducting against the Allied 

 Powers has caused tremendous losses to 

 shipping already and it is generally ad- 

 mitted that the problem confronting 

 the allied nations is of serious importance. 

 The question, how to check the activity 

 of the submarines is, of course, paramount 



This shows the effect of shell fire on 

 the plate covering of a merchant ship 



but next to it comes the question as lo 

 how best to protect ships from sinking 

 after they have been attacked by a sub- 

 marine and torpedoed. The naval author- 

 ities of the allied countries are wrestling 

 with the problem of waging war upon the 

 German U-boats, while the ship builders 

 are called upon to 

 find a solution of the 

 second problem. 



The accompany- 

 ing two illustrations, 

 showing the extent 

 of the damage caused 

 to French ships by 

 shell fire and a tor- 

 pedo form a power- 

 ful argument in fa- 

 vor of the use of 

 watertight compart- 

 ments in the con- 

 struction of freight- 

 carrying merchant ships. Ships equipped 

 with such compartments will remain 

 afloat a long time and may be able 

 to reach the nearest port in safety, instead 

 of sinking in a few minutes after the 

 attack as in the case of so m.any well- 

 known boats. 



.Kiotoa © Underwood and Underwood 



Enormous hole torn in the side of a merchant ship by the explosion of a torpedo 



