S92 
List of Patents . 
Samuel Eli Hamlin, Aug. 30, a capstan fire-engine. 
Moses M ( Farland, Oct. 28, federal balloon. 
Robert R. Livingston, Oct. 28, manufacturing of paper. 
Apollos Kinsley, Oct. 28, universal pump. 
Daniel Keller, Nov. 5, boat for descending rapid streams. 
John Stickney, Nov. 29, pumps for ships, mines, &c. 
Thomas Payne, Dec. 2, saw-mill. 
John G. Gebhard, Feb. 4, extracting oil from Palma Christi. 
John Hawks, Dec. 14, Hawks* pills. 
Havilard Chase, Dec. 16, improvement in mills. 
J. Pitman, Dec. 24, “ effeminate ropery for spinning rope-yarn.** 
1800. 
Oliver Evans, Jan. 16, improvement on stoves and grates. 
S. Gorham, Feb. 4, machine for spinning rope yarn and twine. 
S. Constant, Feb. 4, composition to preserve wood, brick, &c. 
B. Bolitho, Feb. 7, machine for pounding rice, gunpowder, 
W. Shotwell, Feb. 7, metal boxes for wood or iron to turn in. 
John J. Hawkins, Feb. 12, improvement in piano fortes. 
Hattil Killey, 2d, Feb. 12, method of covering salt vats from the 
weather. 
Nathaniel Ladd, Feb. 12, extracting the essence of sumach, fera, 
kc. for tanning. 
Patrick Lyon, Feb. 12, engine for throwing water. 
James Cox, Feb. 20, raising or lifting hides in tanning. 
Benjamin Tyler, Feb. 20, improvement in grist mills. 
John Percy, March 3, improvement in dying blue. 
William Harris, March 15, lathe or loom for weaving. 
C. Hoyt, jun. April 7, machine for manufacturing sumach. 
William Hottensteen, April 10, improvement in coach collars. 
Peter Walker, April 10, stop cock. 
Dean Howard, April 10, improvement in the manufacture of 
boots and shoes. 
Silas Stone, May 6, improvement in the elastic truss for ruptures. 
John Biddis, May 6, engine for reducing silk, cotton, worsted, 
cloth, &c. to their original state, to be manufactured. 
Simeon Jocelin, May 8, silent moving time-keeper. 
Jeremiah Brown, May 14, improvements in the construction of 
ships and vessels. 
George Hadfield, May 15, machine for making bricks and tiles. 
Edward West, May 19, metal amulets. 
T. O. Harrison, May 19, machine for splitting hides and skins. 
