US693940A - Hoisting-derrick and hoisting mechanism. - Google Patents

Description

'Pate'nted-Feb. 25., |902.

(Application led Nov. 8, 1900.)

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(No Model.)

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' Patented Feb. 25, |902. A. ZASTRDW.

'HUISTING DERRIGK ANDVHOISTING MECHANISM.

(Application filed Nov. 8, 1900.) (No Model.)

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UNTTED STATES AUGUST ZASTROW,

PATENT OFFICE.'

OF LYONS, KANSAS.

HOISTING-D-ERRICK AND HOISTING MECHANISM.

SPECIFICATION forming part of Letters Patent N o. 693,940, dated February 25, 1902. Application led November 8, 1900. Serial No. 35,883. v(llo model.)

To all whom it may concern.-

Be itknown that I, AUGUST ZAsTRow, a citizen of the United States, residing at Lyons, in the county of Rice and, State of Kansas, have invented certain new and useful Improvements in IIoisting-Derricks and Hoisting Mechanism; and I do hereby declare that the following is a full, clear, and exact description of the invent-ion, which will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a hoisting mechanism for threshing-machines for use in raising bundles of grain thereto.

The object of my invention is to provide more efficient apparatus for hoisting grain for the purposes described than has heretofore been used.

A further object of my invention is to furnish a collapsible derrick and platform therefor mounted on the threshing-machine and when not in use can be folded down upon the said thresher and made to take up very little room.

Still another object of my'invention is to furnish means whereby an operatorstanding beneath the derrick close tothe feeding position can start or stop the hoisting mechanism with little or no trouble.

In the accompanying drawings, forming a part of this application, Figure l is a plan view of the entire machine. Fig. 2 is an elevation of a fork, showing two positions of its operating parts. Fig. 3 is a plan View thereof, part being broken away to show construction. Fig. 4 is a part-sectional View of a portion of a sliding bearing and lever for operating it. Fig. 5 is aperspective .view of such sliding bearing andlever. Fig. 6 is a side elevation of the machine shown in Fig. l; Fig.

7, a view of a swiveled pulley, and Fig. Sis a rator is pivotally hung a platform C by means of hangers D and bolts F.. The opposite free `end of the said platform is supported from the ground by means of legs'F, pivoted thereto. This platform may also be bolted to the derrick, to be described, and both methods of supporting the platform may be employed or only one of them, as desired. The bolts E, serving as pivots, permit the platform when free of the derrick to be turned over upon the separator, as shown by dotted lines b, Fig. G. This is for convenience in moving the machine to and from the field and that the apparatus may occupy aslittle space as possible. As shown in Fig. l, the center of the platform C is eut out to allow the entrance of a carrier H, employedin earring the grainbundles to the separator, all of which will be understood. The carrier is given a slight degree of inclination downward from the separator, and the lower` end thereof extends below the level of the platform. Said 'carrier may be provided with a canvas belt I in the usual manner, to which motion is imparted by any suitable mechanism from the driving parts of the machine, though this mechanism is not shown. On the said beams a. of the separator are pivotally supported two derrick-arms .I by means of bolts K through standards L on said separator. Said derrickarms constitute anA-shaped frame, suitably braced, whose apeXis above the platform C. A second supporting A-frame Gis loosely connected with the apex of the said frame J, its opposite end resting upon the ground. To this is attached the platform C, as before described. A very rigid derrick for sustaining the weight of the grain hoisted thereon is thus provided. Two derrick-forks composed of four prongs each, as shown in Figs. 2 and 3, are hung by means of a swiveled pulley from the derrick, as shown in Fig. 6. A lever M is pivoted in each arm in slots provided for the purpose, one end of which is connected with a depending rod N. The lower end ef the said rod is loosely attached to a pivoted dog O at the lower ends of the prongof the fork. The opposite ends of the said levers M are connected by links P to a central supporting-rod Q, to which the hoisting-rope R is attached. v u

The operation of the fork is as follows: The operator in passing the fork through the bundle of grain pushes the center rod Q down.

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This operation pulls down the links P and the levers M, thereby raising the outer ends of the latter, to which the rods N are pivoted, thereby moving the dogs O on their pivots and depressing their points in such a manner as to permit the prongs of the fork to pass freely through the grain. When the fork is raised by means of the said rods Q, the levers M are raised at their inner ends to depress their outer ends and tol cause the said dogs O to attain the position shown in full lines, Fig. 2. tVhen the latter are in this position,

vit is evident that the bundle of grain cannot slip from the fork. Then raised to thelirnit of its height on the derrick, the rod Q is arrested in its upward movement by the pulley carrying the rope. This instantly moves the dogs O to release the grain, which falls upon the carrier H below. The apparatus for hoisting the forks will now be explained. Upon the frame c of the separator are journaled two shafts S, in line with one another, in bearings T at their outer ends at opposite sides of the said frame. Theinner adjacent ends of these shafts are journaled in shifting bearings U. The bearing is provided with a slot V, through which bolts W pass into the frame beneath. These permit the bearing to be shifted longitudinally on said frame. Such movement is acquired by the use of a lever X, which is pivoted at Y to the frame and passes through a slot Z in the bearing, a detail view ofwhich is shown in Fig. 4. The upper end of the lever is connected with a combined foot and hand lever 2, pivoted to one of the hangers D of the platform C. Said rod I is adjustable on both of the levers X and 2 by means of a series of holes in said levers, whereby any position or anyamount of movement may be had. The said levers 2 are conveniently placed for the operatorstanding upon the platform. A coil-spring is attached to the lever X at one end and at the other end is held in a bracket 4, secured to the beam c. Means for adjusting the said spring may be of any desired form which will impart a changeable tension to the spring, the latter having suiiicient strength to shift the bearing U in an opposite direction to that imparted to it by movement ofthe lever X. Adjacent to the bearing U described is a friction-wheel 5, secured on the shaft S, adapted for frictional contact with a friction-wheel 6 on the shaft 7 on the frame c, as shown. Motion is imparted to the latter shaft by means of a belt 8 from pulley 9 on a shaft 10 below. The latter shaft receives motion from a pulley 11 and belt 12. (Shown in dotted lines.) Pulley 11 is carried on a shaft 13, which receives motion from a pulley 14, connected by a belt (not shown) from the source of power. On the same shaft with the friction-wheel 5 :is a winding-drum 15, on which the ropes R are intended to be wound. When a bundle of grain has been forked, as has been described, lthe operator standing upon the platform merely places his foot upon of grain, which is automatically released. 4

Then the weight has been released from the fork, the spring 3 asserts itself and draws the lever X and the bearing U back to the normal position or where the friction `wheel 5 is inoperative. However, the operator upon the platform may keep pressure upon the lever 2 until the load is delivered from the fork in case a bundle is sometimes handled that is not sufficiently heavy to put enough weight upon the rope to cause the desired contact of the friction-wheels. Themachine will not then be dependent upon the load for operation. It will be seen that the winding-drums are independently operated, since they are on independent shafts. An operator at each side of the platform by independent lever mechanism may load the carrier H continually, since two forks are in operation. The outer bearings T of the shaft S may be pivoted on the frame c, as shown in Fig. 8, in order that the said shaft will be free to move to bring the friction-wheel 5 into engagement with the wheel of the shaft 7. However, enough play can be left in the said bearings T to allow the shaft to move 'sufficiently to obtain the desired results without the necessity of pivoting the said bearing. The particularconstruction pointed out is new in so far as I am aware, and the general arrangement of my improved apparatus is, I believe, also new, and the novel features as regards the derrick and the platform is an ability to fold them back upon the separator to the position shown in dotted lines in Fig. 6. In folding the apparatus the platform C is first raised and placed in its position shown in dotted lines referred to and then upon this is placed the said derrick, as shown. I am not aware of an apparatus of this character wherein the platform and derrick can thus be folded for compactness. As in other machines the carrier or hinge I-I is adapted to be folded under the separator by means of a connection HQ as shown. Though not shown, a rope is to be attached to each fork by which to guide the said fork when elevating a bunch of grain.

Evidently various changes may be made in my apparatus without sacrificing the intent thereof.

I claim- 1. A hoisting-derrick of the character described consisting of the portions G and J, the former restiu g upon the ground, the latter piv- IOO IIO

oted to the machine carrying it and having pivotal connection with the said portion Gand adapted with the latter portion to be folded over upon the machine, a platform pivotally hung from the machine carrying thederrick and adapted to be swung upon its pivotal connection to fold over upon the said machine for transportation purposes, an elevating-carrier projecting through the platform substantially as set forth, a hoisting-fork hung from the apex of the derrick immediately above said carrier and means for elevating the fork at will, such means being controlled from the platform substantially as set forth.

2. A hoisting derrick and feeder of the character described, consisting of the portions G and J pivotally connected as shown, the former resting upon the ground, the latter pivoted to the machine carrying it and adapted to be folded over upon the machine for transportation purposes, an elevating-fork loosely hung from the apex of the derrick, a platform pivotal] y hun g from the separator and adapted to be folded upon the said separator by swinging upon the said pivotalsupport, means for supporting said platform at its outer end, an elevating-carrier projecting through said platform and located immediately beneath the elevating-forks, winding-drums revolubly mounted on the separator substantially in the manner set forth, friction-Wheels on the same shaft with the said drums, shiftable bearings for carrying'the shafts of the said drums, a friction wheel adjacent to each drum, a friction-wheel adjacent to each of the firstmentioned friction wheels, levers for shifting the said shiftable bearings, a lever on the platform for operating each shiftinglever, a connecting-rod between the two levers, springs for normally keeping the friction -wheels separated, a suitable driving mechanism for imparting continual motion to the driving friction-wheel and ropes attached to the elevating-forks and wrapped upon the winding-drum all arranged substantially as and for the purposes set forth.

3. In a hoisting mechanism of the character described, a derrick consisting of the frame J pivoted at one end to the thresher or other support as set forth, a frame G connected at its upper end to the said frame J for supporting the latter at its'free end, the said frame G resting upon the ground, a platform C pivotally attached to the thresher and having a means of support at its outer end, the plat' form and frame adapted to be connected together, said platform also adapted to swing on its pivotal support to lie upon the thresher, the frames J and G arranged to swing at their points of connection to collapse and fold upon the thresher together with the platform C as set forth and for the purposes described.

4, In a hoisting mechanism of the character described, a derrick consisting of the frameJ pivoted at one end to the thresher -or otherk means of support at its outer end, the plat-- form and frame adapted to be connected together, said platform also adapted to swing on its pivotal support to lie upon the thresher, the frames J and G arranged to swing at their points of connection to collapse and fold upon the thresher together with the platform C, an opening in the platform beneath the derrick, a grain-carrier H occupying a position within said opening and adapted for carrying grain to the thresher, said carrier Aattached at its delivery end to the thresher substantially as set forth.

5. In a hoisting mechanism of the character described, the combination of a thresher, a derrick mounted thereon, the same adapted to fold thereon as set forth, an operators platform mounted on said thresher and also adapted to be folded thereon in the lmanner described, a grain-carrier beneath the derrick and projecting into the platform through an opening therefor, the same being arranged to receive grain from the derrick, supportingpulleys in the top of the derrick above the platform, ropes passing therethrough and each having a grain-fork thereon for lifting the bundles of grain, drums on the thresher for winding the ropes, a shaft for each drum, both shafts being in line with each other, onev end of each being journaled in a stationary bearing, the opposite ends of such shafts arranged to shift laterally substantially as set forth, spring-actuated levers located on the operators platform and connected with the shiftable carriers of the said shafts, a friction-wheel on each of the drum-shafts, a driving-shaft adjacent to and parallel with. the drum-shafts, friction-Wheels thereon opposite the friction-wheels of the drum-shafts and arranged whereby by operating the levers to shift the drum-shafts the said drumshaft friction-wheels will be brought into engagement with those of the driving-shaft for the purposes set forth and described.

In testimony whereof I affix my signature in presence of tivo witnesses.

AUGUST ZASTROW.

Witnesses:

I. W. PLANK, E. B. PULLIAM. Y

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