US72027A - tunison - Google Patents

Description

PATENTED DEC 10 E867 y af-J ma, E@

@einen ftent attnt @Hirn n JOHN GROSS AND JOHN O,l TUNIsON, OF DEOATUR., 'ILLINOIs j Letters Patent 72,027, dated December 10, 1867, l

titte Stigttnlettftmt It in tinte Entert-hnelt mit mating pnt nt ttt stmt.

TO ALL WHOM I'll MAY CONCERN:

Be it knwn that we, JOHN Gnoss and JOHN C. TUNISON, of Decatur, in thc ,county of Macon, and State of Illinois, have invented certain new and useful Improvements in Cultivators; and we do hereby declare thefollowing to he a full, clear, and exact description of the same, referencebeing had to the accompanying drawings, making apart of this specification, in which-J Figure 1 represents a top plan of the eultivator, and Figure 2 represents a longitudinal vertical section through the same.

Similar letters of reference, where they occurin the separate figures, denote like parts of the machine in both of the drawings.

Our invention consists, first, in the combination-and combined action of the two frames, which act together and independent of each other, sothat when the ploughs, which areattached to one of the frames, come incon tact with any obstruction that might otherwise break or injure ithem,'the otherframc will move forward, and

thus relieve the ploughs from the suddenness'of the`ja1; or stoppage. And our invention further consists in the useof a frictional or spring-hook, connected to the tongue or its frame,'by which the two frames are united, andmade one, as it were, until tho resistanceor pressure on the ploughs exceeds that of the frictional or spring-hook, when the two frames arc separated, and one may remain obstructedy whilst the other is drawn forward, as will be explained.

To enable others skilled in the art to make and use our invention, we will proceed to describe the same with reference to the drawings. l n

A is an axle, supported in the two carrying-wheels B B, and upon this axle'is firmly tixedia. frame, C, which n we term the back frame, which carries the drivers seat D. -There is a second frame, E, which can move upon thefaxle or back frame, and upon this Asecond frame, which we term the front frame, arefattached the tongue Fand the ploughs G and H.` These ploughs are pivoted,at their upper ends, to the"front.frame' E, and a chain, a, connected to the front gploughs, passes around a pulley, b, on saidl front frame, and is thenfunted `to the back frame. A rod, c, connects each ot' the rear ploughs with th'c chain,'so.that if any plough of the series f l or tno pairs-should sti-ikea stone or other obstruction, it would stop the front frame, and the onward motion of the team wouldonly draw the rear frame vi'rorward upon the front frame. Upon `the under rear side or end of` the tongue F there is a hook, 2, upon the shankof which there is a coiled spring, 3, and anut, 4, by which said spring may be regulated. This hook catches upon the cross-bar C of the hack frame, and thus unites the two frames. When, however, the resistance upon any one or more ofthe ploughs exceeds the force with which the hook holds, it`(the hook) lets go or is released, and then the back frame, through the chains a, will move forward on to the one thus held back', and this saves the breaking or injuring ofthe ploughs or of the machine. When the rear frame has thus been drawn up or forward upon the other or front framefand the operator desires to put thc machine again in working condition,'he presses down upon the lever e, which allows the frames to assume their working positions, and the hook takes on to and holds the two frames together until another obstruction comes in the way, and they again Adetach, and thus prevent breakage. The front ploughs G are hung to abar, d, which, in turn, is attached to pivot'od or swinging arms,j`, upon which footrests,g, are placed,

so thatthc driver, in his seat, may move these front ploughs to either side, so as to escape stalks outofline or of "the rows. The dotted and the red lines, in addition to the black, lines, show all the moving parts in their" two positions.

Having thns fully described our invent-ion, what we claim therein as new, and desire to secure by Letters-A 1. The arrangement and combined action of the two frames, so that when any permanent obstruction comes against any of the ploughs, the frames will disconnect, and the back frame ride or move up on the front one, and thus avoid breakage, substantially as described. t t n 2. We also claim a frictional spring-hook upon the tongue or tongue-frame,for catching and'holding upon the cross-bar of the rear frame, so that the two frames will not disconnect untilsthe pressure upon theplougn pr ploughs OXCGCLlS that for which the hookhas been adjusted, substantially as described.

K JOHN' GROSS, JOHN c. TUNIsoN.

Witnesses:

ISAAC D. JENNINes, Jos. KAUFMAN.

Images