50 



CLEVISES. 



thus obviate the friction. This arrangement 

 avoids the use of a screw on a pin, or a key to 

 keep the pin in its place. 



Claim. The pin provided with a spring, 

 and arms E E, in combination with the pro- 

 jection in the head, and openings through 

 which the arms may pass, and the recesses I I, 

 arranged substantially as and for the purposes 

 set forth. 



17,462. J. D. WILLOUGHBY, Pleasant 

 Hill, Pa. Plow Clevises. June 2, 1857. 

 Claim. The stem B and button C, with the 

 grooves E, in combination with the cylinder 

 and its elevations /, the whole being arranged 

 and operated in the manner and for the pur- 

 pose substantially as described. 



18,459. JOHN S. LASH, Carlisle, Pa. 



Plows. Oct. 20, 1857. 



Claim. The arrangement of the long, flat, 

 and straight spring C on top of the beam, and 

 the combination of the same, thus arranged 

 with the draught rod E, by means of the elbow 

 lever, substantially as and for the purposes de- 

 scribed. 



24,403. R. B. PRINDLE, Coventry, N. 



Y. Devices for Securing Clevises to Plows. 



June 14, 1859. 



Claim. The arrangement of the pin C, 

 feather or rib c, spaces e e, clevis B, beam A, 

 and groove a, as described, for the purposes 

 set forth. 



28,337. CALVIN ADAMS, Pittsburgh, 

 Pa. Clevises for Plows. May 22, i860. 

 Claim. 1. Constructing the loose end piece 

 of the clevis with hooked ends, fitting into 

 suitable slots in the shanks, for the purpose of 

 forming a connection between the outer ex- 

 tremities of the shanks, and at the same time 

 sustaining the end piece in its proper position, 

 without any bolt or other fastening for that 

 purpose. 



2. Combining with a plow clevis, construct- 

 ed as described, a projection, or lug on one of 

 the shanks, in the manner and for the purpose 

 set forth. 



30,766. FREDERICK SIGRIST, Napa 

 county, Cal. Clevises. Nov. 27, i860. 

 Claim. Making that end of the clevis A, 



which is to receive the perforated end of the 



bolt B, with a hole b, closed at the bottom at 



d, for the purpose described. 



30,813. JOHN S. HALL, Manchester, 

 Pa. Plow Clevises. Dec. 4, i860. 

 Claim. The making of a clevis by bending 

 down and around the piece of metal, so as to 

 enclose and rigidly hold a strengthening plate 

 in its bends or folds, substantially as described. 



31,565. WILLIAM F. SHEDD, Ripley, 



Ohio. Plows. Feb. 26, 1861. 



This invention consists in an arrangement of 

 parts for the purpose of adjusting the clevis so 



as to regulate the depth of plowing, or to 

 give more or less land as may be desired. 



Claim. The arrangement of the pivoted 

 bracket F, stirrup G, and regulating screws m 

 and 0, to operate in combination with the 

 clevis E, in the manner and for the purposes 

 specified. 



31,761. G. W. DEPEW, assignor to Hor- 



ton, Depew & Sons, Peekskill, N. Y. Plows. 



Mar. 19, 1861. 



The clevis is formed with three holes in its 

 front part and a recess in the rear forming arms, 

 which are provided with pins on their inner 

 sides to fit into notches in the plow beam, by 

 which means the plow may be adjusted to a 

 greater or less pitch, and the casual attachment 

 of the clevis prevented. 



Claim. A clevis B, provided with arms h h, 

 which have pins i i projecting therefrom, in 

 connection with a plow beam A, having 

 flanches a a at the upper and lower edges, and 

 provided with an inclined front end a', and 

 notches e e, all arranged as and for the purpose 

 set forth. 



32,489. L. M. STEARNS, Cardiff, N. 



Y. Plows. June 4, 1861. 



The object of this invention is to attach a 

 whiffletree to a plow clevis in such a manner 

 that the whiffletree will not get under the horses 

 feet in turning the plow, it being kept up by 

 the pin g; and also, that the beam will have a 

 much better purchase on the plow in turning 

 it, and keep the beam steady in heavy plowing ; 

 at the same time the improved clevis will ad- 

 mit of all the adjustments desirable, and it will 

 be strong and substantial. 



Claim. Combining with clevis A, construct- 

 ed and applied to the plow beam, as described, 

 the forked coupling iron, consisting of the arms 

 h h, pivoted to the clevis by pin f, and arms//, 

 embracing the whiffletree, and pivoted thereto 

 by the pin k, and the check pin g, all arranged 

 and operating as described. 



33,066. R. A. BLAIR and JOHN B. 



REED, New Philadelphia, Ohio. Plow 



Clevises. Aug. 20, 1861. 



The shanks of the clevis in this plow extend 

 back and are secured by a bolt to the beam near 

 the plow standard. On the front part of the 

 beam is fitted a rectangular metal clasp, which 

 is allowed to slide in a direction transversely 

 with the beam. Through the sides of the 

 clasp passes a screw rod, by turning which, the 

 clasp is made to move the clevis one side or 

 the other, and thus give to the plow " more or 

 less land " as may be required. 



Claim. The employment or use, in com- 

 bination with the clevis B, of the clasp E, and 

 screw rod F : the whole being applied to 

 beam A of the plow, substantially as and for 

 the purpose set forth. 



36,446. EDWIN BEMENT, Fostoria, 

 Ohio. Plow Beams. Sep. 16, 1862. 

 Upon each side of the plow beam is a lateral 



