128 SECURE SAILING OR LIFE BOAT, 



but wtth this difference, that these timbers will catch the 

 slips that are rivetted over the joints of the planks each way, 

 and so the timbers and slips will brace one another, and add 

 an additional strength ; but in the clincher built boats, the 

 timbers catch the laps of the seams only one way, and con- 

 sequently form no brace whatever. 

 Applicable to All I need to explain farther on the neutral system is its 

 boats, barges, application. It can be applied to all open boats, of what- 

 ever form or use, to all coal and other barges, lighters, or 

 any vessels used in rivers or canals, and also to all large 

 cutters and luggers, which are now clincher built. 



Explanation of PL IV, Jig. 1 , 2, 3, 4. 



Explanation of Fig. 1, is a bird's eye view of the boat, showing the pro- 

 the plate. jecting balance bodies, or hollow sides a b, one of which, a^ 

 is left open to show the partitions, which are placed oppo- 

 site to each timber, and are water tight ; by this means, if 

 one or more should be broken, the rest would keep the ves- 

 sel buoyant. These partitions gradually lessen towards each 

 end, where the planks unite, so as to make a similar ap- 

 pearance to any other boat when in the water. 



Fig. 2, shows the depth and form of the cells or hollows, 

 as they appear in a section of the boat ; also the manner in 

 which the slips are placed over the joinings, or seams of the 

 planks. 



Fig. 3, is a perspective view of the boat, in which e h 

 show the projecting balance bodies, or hollow sides, which 

 would render the boat buoyant if her bottom was staved in, 

 c, the lower part or body of the boat, from which the pro- 

 jections commence ; d, the keel. 



Fig, 4, shows the manner in which the planks or timbers 

 of the boat are united ; ej\ are two planks of the boat ; g, 

 the slip of wood placed over them, and secured to them by 

 the rivets h h, 



. The section (Fig. 2), will best explain the nature and 

 utility of the self-balanced boat. The balance bodies form 

 two separate holds, to put any thing in, svich as provision, 

 arms, &c., which are wanted to be kept dry, having locker 

 lids, to open at the top of the different partitions in the 

 holds, as fancy or utility may require; or part of thena 



may 



