Scantlings of Inventions. 53 . 



whole cannon, whereof the end was burft, and filled it three 

 quarters full of water, flopping and fcrewing up the broken 

 end; as alfo the touch-hole; and making a conftant Ere 

 under it, within 24 hours it burft and made a great crack: 

 fo that having a way to make my vefifels fo that they are 

 ftrengthened by the force within them, and the one to fill 

 after the other. I have (een the water run like a conftant 

 fountain- ftream forty foot high; one veffel of water rarefied 

 by fire, driveth up forty of cold water. And a man that tends 

 the work is but to turn two cocks, that one vefTel of water 

 being confumed, another begins to force and refill with cold 

 water, and fo fucceflively, the fire being tended and kept 

 conftant, which the felf-fame perfon may like wife abun- 

 dantly perform in the interim between the neceftity of turn- 

 ing the faid cocks. 



LXIX. A triangle Key. 

 A way how a little triangle fcrewed key, not weighing a 

 milling, (hall be capable and ftrong enough to bolt and un- 

 bolt round about a great chefl an hundred bolts through fifty 

 ftaples, two in each, with a direct contrary motion, and as 

 many more from both fides and ends, and at the felf-fame 

 time fhall faften it to the place beyond a man's natural 

 ftrength to take it away; and in one and the fame turn both 

 locketh and openeth it. 



LXX. A Rofe Key. 

 A key with a rofe-turning pipe, and two rofes pierced 

 through endwife the bit thereof, with feveral handfomely- 

 contrived wards, which may likewife do the fame effecls. 



LXXI. A fquare Key with a turning Screw. 

 A key perfectly fquare, with a fcrew turning within it, 

 and more conceited than any of the reft, and no heavier 

 than the triangle fcrewed key, and doth the lame efFecls. 



LXXI I. An EJcocbeon for all Loch. 



An efcocheon to be placed before «ny of thefe locks with 

 thefe properties. 



t. The owner (though a woman) may with her delicate 

 hand vary the ways of coming to open the lock ten millions 

 of times, beyond the knowledge of the fmith that made it, or 

 of me who invented it. 



2. If a itranger openeth it, it fetteth an alarm a-going, 

 which the ftranger cannot ftop from running out; and be- 

 fides, though none fliould be within hearing, yet it catchetn 

 his hand, as a trap doth a fox; and though far from maim- 

 ing him, yet it leaveth fuch a mark behind it, as will dif- 



D 3 cover 



