US782072A - Hoist for corn-shockers. - Google Patents

Description

, PATENTED FEB. 7, 1905.

D. w. SMITH.

HOIST FOR 001m SHOCKERS.

APPLIOATIOK FILED MAE. 5, 1904.

2 BHEETSSHEET l.

PV/TJVESSES: J W? m No. 782,072. PATENTED FEB. 7, 1905.

D. W. SMITH.

HOIST FOR CORN SHOGKERS.

APPLIOATIOK FILED MAB. 5, 1904.

2 SEEETB-BHEET 2.

lV/TNESSES:

NVEN T Patented February 7, 1905.

DANIEL W. SMITH, OF CHICAGO, ILLINOIS,

ASSICNOR TO INTERNATIONAL HARVESTITER COMPANY, OF CHICAGO, ILLINOIS, A (.ORPORA'ITION OF NEIV JERSEY.

HOIST FOR CORN-SHOCKERS.

SPECIFICATION forming part of Letters Patent No. 782,072, dated February 7, 1905. Application filed March 5, 1904. Serial No. 196,762.

To m7] [when]. it 'III/HJ/ con/corn.-

zen of the United States, and a resident ofChiago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Hoists for Corn-Shockers, of which the following is a specification sutliciently clear and exact to enable those skilled in the art to which it appertains to make and use the same.

The invention relates in general to hoists, and in particular to hoists for corn-harvesters of the type in which a shock of corn is formed upon a platform and is lifted therefrom and swung upon one side and deposited upon the ground by means of a crane.

The obyect of the invention is to provide a hoist the operating-lever of which serves to turn the crane, whereby the operation of li'fting the shock from the harvester and depositing it upon the ground is facilitated. Heretofore the cranes for such harvesters have usually been provided with a winch having a crank by which it is operated and a lever independentthereofforturningthecrane. Such a constructitm necessitates, first, the raising of a shock a sufiicientamount to clear the platform and the guard around the outside thereof by turning the crank of the winch and locking the same to hold the shock in its elevated position; second, the turning of the crane by means of the lever to swing the shock to one side preparatory to depositing it upon the ground, and, third, the rel asing of the winch to lower the shock. rest during the operation of depositing the shock, its e tliciency depends considerably upon the time required to perform this operation. It is therefore essential that this time be reduced to the minimum. The present invention, an embodiment of which is shown in the accompanying drawings, very materially lessens this time by performing the three opera tions above referred to by means of a single lever, thus increasing the efficiency of the machine.

Referring to the drawings forming a part of this specification. in which like characters of Since the machine is at V I reference designate like parts, Figure 1 illus- Be it known that I, DANIEL IV. SMITH, a c1t1- trates as much of a corn-harvester of the above- 5 described type as is necessary to show the application of the invention. Fig. 2 is an elevation of the inner side of the hoistand its operating-lever, showing the latter in its highest po sition and showing also a fragment of the mast 55 of the crane to which the hoist is attached. Fig. 3 isan elevation corresponding to Fig. 2, showing the operating-lever in its lowest position. Fig. A is'a plan view of the parts shown in Figs. 2 and 3, showing the operat- 6O ing-lever in its medial position, in which the radial links are substantially horizontal. Fig. shows a modification in the construction of the pawl and ratchet.

Referring to Fig. 1, A designates the trac- 5 tion-wheel; .B, the framework of the gathering devices; C, the shield around the outer edge of the platform; I), the mastof the crane; I), the members of the tripod supporting the same. and I) the shock-forming post 7 having folding radial arms (7, by which the shock is lifted. All these parts are common to corn-harvesters of this type and need not be further described here.

Mounted upon the mast D of the crane is 75 a hoist having a wimling-drum E and an operating-lever F. The winding-drum is connected with the shock-forming post by means of the usual rope (I', and the operating-lever is connected with the winding-drum by means 30 hereinafter described, by which it is turned. The winding-drum E is journaled on a shaft (2, carried by the bracket E, secured to the mast. This drum is provided with ratchets c,

which are adapted to be engaged by pawls t 5 which are pivotally connected with radial links (5", by which they are held in proper position relative to the ratchet-s, one end of each of which links is pivoted on the shaft 0'. Reacting between the pawls and the radial links are the 9 springs c, which serve to hold the pawls into ongagement with the ratchets when the former are unrestrained. The lever F is preferably provided with a yoke f at the end adjacent to the mast, between the members of which the 95 mast is received and by which it is pivot-ally connected therewith in the usual manner, so that it serves to turn the crane and yet is free to vibrate in a transverse plane. The links f are provided to connect the radial links a with the lever F and are preferably pivoted I on opposite sides of the inner member of the yoke f. Their connection with the radial links is preferably made by means of the pivots for the pawls. Yokes f are provided at the upperend of these links to support the outer ends of the pivot-pins.

From the above description it will be seen that if the lever F be reciprocated in the plane of the mast the pawls will alternately engage the ratchets, moving-the latter intermittently in one direction, one pawl engaging on the upward movement of the lever and the other pawl on the downward movement thereof. By these means the shock may readily be lifted and be swung to one side of the machine preparatory to depositing it upon the ground. A support f 3 is provided to carry the operating-lever, which by its engagement therewith serves to hold the crane in its normal position during the formation of the shock.

In order to release the winding-drum to lower the shock, it is necessary to provide means for disengaging the pawls from the ratchets. The means herein shown consist of latch-handles G, which are-pivoted in the usual manner to the outer end of the lever F and connected to the pawls through the agency of connecting-rods g, bell-cranks( and links g which latter are provided with a flexible portion 9, herein shown in the form of a chain. By these means it will be seen that the winding-drum may be released and the shock dropped to the ground, or it may be lowered to the ground gradually by alternately releasing the pawls. In order to readily disengage the pawls from the ratchets, it may be found desirable to provide the former with antifriction-rollers, as shown in Fig. 5, and to shape the ratchets in conformity therewith, in which instance it will be necessary to reduce the number of ratchets.

L The operation of the invention is substanl tially as follows: A shock is accumulated upon the platform of the harvester in any desired manner and bound. It is then lifted from the platform clear of the shield around the outer I edge thereof by the operater, who simply reciprocates the operating-lever in the plane of the mast, thereby turning the winding-drum. The shock is then swung from the platform to one side of the machine by means of the same operating-lever, after which the winding-drum is released by means of the latchhandles to drop the shock, or it may be lowered gradually to the ground by operating the latch-handles alternately and reciprocating the operating-lever in a reverse direction to that employed in raising the shock. The shock-forming post is then disengaged from the shock in the usual manner and returned to the platform by repetition of the operation above described.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

.In a corn-shocker, the combination with the crane, of a shock-forming post, a windingdrum provided with ratchets mounted upon the crane and connected with said post, a lever pivotally connected with the crane independl l r l l l l i ent of the support for said drum which shall operate to revolve the crane, means, comprising a plurality of toggles connecting said drum and lever each having a pawl which is adapted to engage the ratchets. whereby said drum may be rotated by each stroke of said lever l and latch-handles connected with the pawls for throwing each out of engagement with the ratchets to permit retrograde rotation of said drum.

In testimony whereof I. have signed my name l to this specification in the presence of two subl scribing witnesses. DANIEL W. SMITH.

l Witnesses: l ANSON H. BROWN, 1 CHAS. F. WAL'rERs.

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