471 



REVOLVING MOLD-BOARDS. 



die F, with tongue and groove, as described, 

 the keys/"/", and the trucks or wheels, substan- 

 tially as and for the purpose set forth. 



237,812. WILMOT F. CAMERON, 

 Deering, assignor to Herbert M. Sylvester, 

 Portland, Me. Plows. Feb. 15, 1881. 

 Filed Dec. 13, 1880. 



Claim. 1. A roller, D, for a plow, consist- 

 ing of an outer metallic casing and a filling of 

 wood or other similar material, and provided 

 with a stud-bearing, b, at the upper end, and 

 a socket-bearing, b' , set in the lower end, sub- 

 stantially as described. 



2. In a plow, the roller D, consisting of an 

 outer metallic casing filled with wood or other 

 similar material, and having a stud, b, set in 

 the upper end, and a socket, b', in the lower 

 end thereof, in combination with the upper and 

 lower plates, E E, said studs and sockets being 

 adapted to support and hold in place the said 

 roller while effectually preventing the working 

 in of earth around the wearing parts, substan- 

 tially as described. 



3. The rear trucks, C C, in combination 

 with the horizontal bars F F, the supporting- 

 stud g on the vertical slotted plate O, and the 

 curved upright slotted arms G G, pivoted at 

 the lower ends, and secured above at one side 

 by means of an adjustable fastening, substan- 

 tially as and for the purpose hereinbefore de- 

 scribed. 



252,291. WILLIAM A. ESTES, Vas- 

 salborough, assignor of three-eighths to An- 

 drew Webber and Hartwell B. Haskell, 

 China, Me. Plows. Jan. 10, 1882. Filed 

 Oct. 13, 1881. 



Claim. 1. An anti-friction roller for plows 

 and other cultivators, having ends of its journal, 

 shaft, or pivot loosely inclosed in a movable 

 nipple, which is adapted to revolve in its bear- 

 ing for the purpose of diminishing wear, all 

 the parts being constructed and arranged sub- 

 stantially as specified. 



2. The combination, with the mold-board 

 and landside of a plow having bearings ^/and 

 slots h, of the rollers a, arranged toward the 

 rear side of said slots, and provided with re- 

 cesses or journal-boxes c, and the movable nip- 

 ple £, placed loosely within said journal-boxes 

 and surrounding the journals of the rollers, sub- 

 stantially as and for the purpose set forth. 



3. The combination, with a plow-frame, of 

 the adjustable roller a', having its journals in- 

 closed in nipples^-, and provided with a rod or 

 bar, k, substantially as described. 



263,122. CARL O. DAHLMAN, 



Willis, Tex. Plow Mold-Boards. Aug. 22, 

 1882. Filed Apr. 26, 1882. 



Claim. 1. The combination, with the mold- 

 board c, provided with the transverse parallel 

 slots / /, with the belt supporting piece be- 

 tween them, and scrapers m m, of the rollers k 

 k, journaled in the ends of the slots, endless 

 apron /, and guards n n, substantially as de- 

 scribed, and for the purpose set forth. 



2. The combination of the mold-board c, 

 provided with the circular roll e, having belt 

 h, slots i i, belt-supporting piece between 

 them, scrapers m m, rollers k k, endless apron 

 /, and guards n, substantially as described, and 

 for the purpose set forth. 



