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MOLD-BOARDS. 



337. SAMUEL HULBERT, Ogdens- 

 burg, N. Y. Plows. Patent No. 10,031. 

 Sep. 20, 1 85 3. Reissued Jan. 1, 1856. 

 Claim. Constructing a mold-board and 

 molding part of the share of a plow, so that a 

 horizontal line drawn at any height across their 

 working side shall describe a convex arc of a 

 circle, and any line drawn across its working 

 side at right angles to the base, shall also de- 

 scribe the convex arc of a circle separately or 

 connectedly, the whole or either part substan- 

 tially as set forth. 



10,629. EDWIN M. BARD, Philadel- 

 phia, Pa. Plows. Mar. 14, 1854. 

 Claim. Securing the cutters in openings 

 formed in the mold-board at the points and in 

 the inclined positions outward and backward 

 represented, so as to enable the lower forward 

 cutters to cut and loosen the soil preparatory 

 to its being overturned, and the other cutters to 

 more thoroughly pulverize it as the body of 

 earth is thrown over, and the cutters, from 

 their peculiar inclined position, to disengage 

 themselves from weeds and other obstacles as 

 they pass the same, the several parts being pre- 

 cisely as described. 



11,523. JOSHUA GIBBS, Canton, Ohio. 



Plows. Aug. 15, 1854. 



Claim. Making the working-surface of the 

 mold-board in the form of a section of the in- 

 terior surface of a hollow cylinder, the center 

 or axis of said cylinder being parallel, or nearly 

 parallel, horizontally to the base of the mold- 

 board or bottom of the plow, substantially as 

 described. 



14,224. JOHN CLARK and GEORGE 

 W. N. YOST, Pittsburg, Pa. Plows. Feb. 

 12, 1856. 



Claim. The revolving share-cutters B B 1 , 

 attached to the mold-board in combination 

 with the bearing-plate or strap D, and the ex- 

 tension of the land side (or the equivalent of 

 said bearing-plate D and extension of said land 

 side) for securing the free and certain revolu- 

 tion of the series of revolving share-cutters B 

 B 1 , substantially in the manner and for the 

 purpose set forth. 



15,887. SAMUEL A. KNOX, Worces- 

 ter, Mass. Plows. Oct. 14, 1856. 

 Claim. The form of the working-surface of 

 the mold-board of plows, substantially such as 

 described, and composed or combined of the 

 several characteristic features above specified. 



16,901. ELLIOT ANDRUS, Geneva, 



N. Y. Plows. Mar. 31, 1857. 



Claim. 1. The frame E E\ for the purpose 

 of holding the mold-board B, attaching the han- 

 dle P', and supporting the end of the wheel- 

 shaft S. 



2. The manner of attaching the mold-board 

 upon pivot-points, in combination with the lock 

 til? and links LL'. 



3. The combination of the wheel W, cams a 



a 1 a 2 a x a* a s , and friction-roller b, or their 

 equivalents, to produce the oscillating motion 

 of the mold-board, in the manner and for the 

 purpose substantially as described. 



23,898. 0. M. BRYAN, Wright City, 



Mo. Plows. May 10, 1859. 



Claim. Attaching the mold-board D by 

 means of the bolts h h i i passing through the 

 cleets b b, at the inner side of the mold-board, 

 and into the landside E and handle S, the 

 bolts g d i i and the brace bar d. 



26,133. JOHN T. TOWNSEND, Bren- 

 ham, Tex. Plows. Nov. 15, 1859. 

 Claim. The arrangement and combination 

 of the landside A, standard B C, mold board 

 H, share F, braces or arms DEI, and cross 

 bar G, substantially as and for the purpose set 

 forth. 



28,169. J. H. GOOCH, Oxford, N. C. 



Plows. May 8, i860. 



Claim. Making the mold-board extension 

 in two parts, A and B, the dividing line be- 

 tween the two parts A and B being horizotal, 

 or nearly horizontal, for the purpose of trans- 

 forming the plow into a cultivator, sub-soil, 

 or complete turning plow, by simply detaching 

 either one or both of those two parts, substan- 

 tially as set forth. 



28,329. WILLIAM C PITTTS, Austin 



Tex., Assignor to William A. Pitts, same 



place. Plows. May 15, i860. 



Claim. 1. The construction of the plow with 

 double points with the hole in the centre so 

 that either end may be turned to the ground 

 and fastened to the stock or "helve" of the 

 same, by the bolt through the hole in the cen- 

 tre, so that when one point wears out or breaks 

 off, the other can be turned down 



2. The separate bar, so constructed as to fit 

 and sustain the plow, as specified. 



And I hereby disclaim the invention of the 

 stock of said plow, and claim only the inven- 

 tion of the share and bar, as specified. 



31,028. GILBERT H. MOORE, Roch- 

 ester, N. Y. Plows. Jan. 1, 1861. 

 This invention consists in the formation of 

 the mold-board by the combinaton of two spi- 

 ral curves which recede from the centre while 

 they continue to revolve about it ; the first 

 spiral commencing with the junction of the 

 share with the land-side, and terminating at 

 about midway of the mold-board, at the point 

 where the furrow-slice reaches the perpendicu- 

 lar. 



Claim. A plow constructed and composed 

 of the several characteristic features described. 



39,943. SOLOMON MEAD, New 



Haven, Conn. Plows. Sep. 15, 1863. 



Claim. The construction of the mold-board 

 or turning surface of plows to correspond with 

 a section or segment of a cone, substantially as 

 before described and for the purposes set forth. 



