Award of Medals, Sfc, at Kilburn. 
741 
of undue pressure. So soon as the pressure is reduced, it at 
once closes. In November 1878 this valve was awarded the 
Fig. 34. — Section of Mr. Thomas Adams's Spring Safety-valve. 
mi. prize offered by the Editor of the ' Nautical Magazine.' 
1 here were eight competitors. The following Report appeared 
m the ' Nautical Magazine ' of November 1878 •— 
