298 



MOLD-BOARDS. 



232,868. SILAS H. WOOLDRIDGE, 



Venice, 111. Plows. Oct. 5, 1880. Filed 



May 13, 1880. 



Claim. 1. The plow comprising share A, 

 mold-board B, and cutter C, made of one piece 

 of sheet metal, the cutter of said plow extend- 

 ing from the point gto the point h, and serving 

 the office of both a cutter and a brace for re- 

 taining the curved form of the share and mold- 

 board, as herein described. 



2. The process of making the combined 

 share, mold-board, and cutter, consisting in 

 cutting out the plate in the form shown in Fig. 

 1, forming gage-marks for bending ud the cut- 

 ter between the points £• and h, sharpening the 

 edges a and /, bending the plate into a con- 

 cave form corresponding to that required for 

 the upper surface of the share and mold-board, 

 then heating the mold-board and share portions 

 to a moderate degree and the cutter portion to 

 a comparatively high degree, hottest near the 

 edge/, and while the plate is thus heated bend- 

 ing up the cutter at right angles to the hori- 

 zontal portion of the mold-board and share, 

 the bending operation being effected gradually, 

 and the contraction of the cutter portion being 

 greater than that of the mold-board and share 

 portions of the blade, all as described. 



234,915. JAMES T. KENNEDY, Peters- 

 burg, Tenn., assignor of one-half to L. V. 

 Fogleman, same place. Plows. Nov. 30, 

 1880. Filed Oct. 3, 1879. 

 The mold-board is in two parts, the outer 

 section being adjustable, and secured at any 

 desired width upon a frame which also supports 

 the handle. Shares of different sizes are in- 

 tended to be used to conform to the enlarged 

 or diminished mold-board. 



Claim. In a plow, the standard B, provided 

 with the frame C C C 2 , having lip N, and the 

 stationary upper mold-board, I, in combination 

 with the lower adjustable mold-board, K, hav- 

 ing the cross-piece M secured to its under side 

 by the screw-bolts L L, constructed and oper- 

 ating substantially as and for the purposes set 

 forth. 



247,079. TAPLEY B. MADDUX, 



Denton, Tex. Pulverizing Attachments for 

 Plows. Sep. 13, 1881. Filed June 9, 1881. 



Claim. The combination of the curved 

 .mold-board C, the bar E. which is secured to 

 the upper curved edge thereof, and the upward- 

 projecting and rearward-inclined cutters F, se- 

 cured at desired angles in said bar, and pro- 

 vided with shoulders I, which rest upon the 

 mold-board, substantially as shown and de- 

 scribed. 



252,022. CHARLES DOMSCHKE, 



Austin, Tex. Plows. Jan. 10, 1882. Filed 



Oct. 5, 1881. 



Claim. 1. The combination, in a plow, of 

 the share A, concave in line from its point to 

 its top or rear, and the high and narrow mold- 



board B, having its surface flat or without curve, 

 as shown and described. 



2. The combination, in a plow, of the share 

 A, concave in line from its point to its top or 

 rear, and the high and narrow mold-board, 

 having its surface flat or without curve and 

 forming the projecting corner g, substantially 

 as specified. 



258,806. JOHN QUEST, Wakeman, Ohio. 

 Plow Mold-Boards. May 30, 1882. Filed 

 Dec. 12, 1881. 



Claim. 1. A mold-board having the ex- 

 terior curvature set forth, in which all the lines 

 of its concave surface radiating from the point 

 O upward, and also forward to the point B, lie 

 in contact with a straight-edge revolved upon 

 the mold-board with the point O as a center, 

 substantially as described, and for the purpose 

 set forth. 



2. A mold-board having the exterior curva- 

 ture set forth, in which all the lines of its con- 

 cave surface radiating from the point O upward, 

 and also forward to the point B, lie in contact 

 with a straight-edge revolved upon the mold- 

 board with the point O as a center, and the 

 end of the mold-board in rear of the line O P, 

 constructed as specified, substantially as de- 

 scribed, and for the purpose set forth. 



3. The method of constructing a plow mold- 

 board as herein described, consisting in first 

 forming on a block, in the manner set forth, 

 the upper and lower construction-lines, C P B 

 and E O K, and the points O and P, connect- 

 ed by the straight line O P, forming one line 

 of the mold-board, then cutting away said 

 block so that a straight-edge centered at O and 

 revolved from the point P forward to the point 

 B will always be in contact with the face of the 

 block, and finally in constructing the end of 

 the mold-board in rear of the line O P, as speci- 

 fied, substantially as described. 



266,121. EDWIN J. ETZLER, Tyrone, 

 Pa. Plows. Oct. 17, 1882. Filed June 3, 

 1882. 



Claim. 1. A plow having its mold-board 

 and share separated from each other from front 

 to rear and connected together by the half-tube 

 /, supported by the curved bars c, substantially 

 as herein shown and described, whereby a con- 

 tinuous air-space, e, entirely open at top, is 

 formed between the mold-board and share, as 

 set forth. 



2. A plow having an air-space, e, along the 

 joint between the mold-board and share, and 

 a notched or serrated margin of the share along 

 the space, substantially as described. 



3. The combination, with the mold-board a 

 and serrated share b, provided with an air- 

 space, e, between them, of the half-tube/, hav- 

 ing an inner head, h, tube g, and means, sub- 

 stantially as described, for forcing air through 

 said tube, as specified. 



