394 List of Patents, 
Israel Hatch, March 24, making and discharging chain and cleaver 
shot. 
Nathan Kent, May 1 , cut nails from iron hoops, &c. rendered tough. 
David Ellicot, May 1, stove, screw, and reel grain drying machine, 
Solomon Thayer, June 9, impellent pump. 
Jesse Reed, June 9, nails milled out of heated rods. 
Samuel Downing, June 12, extract of bark for dying, See. 
John Eveleth, June 13, forcing pump. 
Charles W. Peale, July 16, portable vapour bath. 
Henry Guest, July 1 6, infusing oil into leather, Sec. 
Jeremiah Ladd, July 17, a beaming machine. 
Caleb Green, July 23, mill for grinding painter’s colours, Sec. 
Christopher Hoxie, Aug. 20, machine for extracting grain from 
straw, Sec. 
William Palmer, Aug. 25, a machine for raising water. 
Gurdon F. Saltonstall, Aug. 21, improvement for cooling and 
conveying up meal, Sec. 
Gurdon F. Saltonstall, Sept. 2, metaliick fluted gin rollers, for 
cleaning cotton. 
Thomas Bruff, Sept. 14, manufacturing spoons. 
James Sharpies, Sept 1 5, giving motion to wheels within cylinders^ 
Do. mechanical powers for the use of wind 
mills, Sec. 
Thomas Power, Sept. 19, manufacturing potash. 
Samuel Willis, Sept. 21, moveable suspended beam and scale. 
Richard Robotliom,,Oct. 10, air-pump ventilator for ships, mines, 
Sec. 
Richard Robotham Oct. 10, machine for ruling paper, 8cc. 
John Poole, Oct. 13, a syphonick steam machine. 
Michael Krafft, Oct. 28, construction of stills. 
William Leslie, Nov. 5, machine for cutting and heading nails. 
John A. Morton, Dec. 16, improvement in a windmill. 
George Clymer, Dec. 22, improvement in a ship’s pump. 
Jos. Condit, jun. Dec. 28, making paper from currier’s shavings. 
1802. 
Joseph Hutton and Gideon Fairman, Jan. 8, improvement in the 
art of engraving. 
Rufus Hathaway, Jan. 20, improvement in a wind-mill. 
Simon Willard, Feb. 8, improvement in a time-piece. 
Isaac Baker, Feb. 20, a machine for churning. 
Thomas B. Whilock, Feb. 23, improvement in boxes for carriages. 
