US572023A - Loading or unloading apparatus - Google Patents

Description

(N Model.)

P. -MGDONOUGE LOADING 0R UNLOADING APPARATUS.

No'. 572,023, Patented Nov= 24, 1896.

wifgesm L TN NORWS PETERS CA FH N C UNITED STATES PATENT OFFICE.

FRANK MCDONOUGH, OF EAU CLAIRE, VVISCONSIN.

LOADING OR UNLOADING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 572,023, dated November 24, 1896. Application iile. March 17,1896. Serial No. 583,600. (Nolmodel.)

To @ZZ whom, it may concern:

Beit known that I, FRANK McDoNoUGH, a citizen of the United States, residing at Eau Claire, in the county of Eau Claire and State of lVisconsin, have invented a new and useful Loading and Unloading Apparatus, of which the following is a specification.

rlhis invention relates to loading and unloading apparatus 5 and it has for its objects to provide a new and useful apparatus of this character especially adapted to provide simple and efficient means for loading the pile of lumber onto a wagon or yard-car or other transport, and also having means to provide for unloading lumber from a wagon or other transport.

lVith these and other obj ects in view, which will readily appear as the nature of the invention is better understood, the same consists in the novel construction, combination, and arrangement of parts hereinafter more fully described, illustrated, and claimed.

In the drawings, Figure 1 is a side elevation, partly in section, of a loading and unloading apparatus constructed in accordance with this invention and illustrating a pile of lumber about to be loaded onto a lumberwagon. Fig. 2 is a transverse sectional view on the line 2 2 of Fig. 1. Fig. 3 is an enlarged detail elevation of the trip mechanism for lowering the pile of lumber onto the live shifting-roll.

Referring to the accompanying drawings, the numeral 1 designates a supporting bed or frame having a pair of parallel bearingtimbers 2, on the upper sides of which timbers are mounted the bearing or journal bones 3, which receive the spindle extremities 4 of the dead piling-rolls 5, which are arranged transversely between the pair of bearing-timbers and are disposed in the same horizontal plane to provide for supporting a pile of lumber 6 thereon, as illustrated in Fig.. 1 of the drawings. The dead-rolls 5 may be arranged in any desired number, but preferably only two of such rolls are employed to provide a support for the pile of lumber 6 at one side of the vertical center of such pile, and at one end of the bearing-timbers 2 the latter are further provided on their upper sides with suitable bearings 7 fora live shifting-roll S, which is designed to be given a positive rotation by means of suitable drivin g connections therewith to provide for shifting the pile of lumber in the manner to be presently referred to. y

At one side of and in close proximity to the live shifting-roll 8 the bearing-timbers 2 have mounted on their upper sides the bearingblocks 9, which loosely receive therein the rounded spindle ends 10 of an oscillating tripbar 11. The oscillating trip-bar .11 is arranged transversely above the pair of bearing-timbers 2, so as to be disposed transversely beneath the pile of lumber handled by the apparatus, and said transverse tripbar 11 is provided at its upper edge with a longitudinal supporting-ridge 12 and at one side of said ridge with a side bevel 13, onto which bevel the vpile of lumber works itself to provide for tilting the trip-bar in one .direction, as will be further explained. At a point between its ends the oscillating transverse trip-bar 1l has rigidly connected therewith the upper end of a link 14, the lower end of which link is pivotally connected at 15 to the inner end of a trip-latch 16. The trip-latch 16 is provided with a beveled outer end 17 and an engaging hook 18, which latter is adapted to be normally engaged with a fixed catch-bar 19, secured at one side of the supporting bed or frame and at one end of thebearing-timbers 2 below the plane of the live shifting-roll 8.

Normally the engagement of the trip-latch 16 with the fixed catch-bar 19 provides for holding the trip-bar 11 in an upright position, which disposes the upper supporting-ridge 12 of such bar in a plane above the plane of the top surface of the adjacent live shiftingroll 8, as clearly illustrated in Fig. 3 of the drawings. The planks or lengths of lumber are carried from the mill in the usual manner and are piled one on top of the other on the piling-rolls 5 and the upright trip-bar 11, as illustrated in Fig. 1 of the drawings, to form the pile 6. This pile of lumber rests directly on the said piling-rolls 5 and on the ridge 12 of the bar 11, but is held by such bar out of contact with the live shifting-roll 8, and in this connection it will also be noted that both of the dead piling-rolls 5 are preferably disposed at one side of the vertical center of the pile of lumberin order to insure a positive operation of the trip mechanism. Vith the parts of the apparatus adj usted and the pile of lumber disposed as just described the said pile of lumber is ready forv loading ICO onto a wagon, car, or other transport, and in the drawings I have illustrated a lumber wagon or rack 2O in position for receiving the pile of lumber. The wagon 2O or other transport is preferably provided with a series of lum ber-s upporting rolls 21, which provide for the ready rolling of the pile of lumber onto the wagon and off of the same, and in connection with one of the supporting-rolls 21 on said wagon 20 is illustrated an operatingcrank 22, the purpose of which will be referred to. The wagon 2O or other transport is backed up to the apparatus to the position illustrated in Fig. 1, and is preferably designed to strike the outer beveled end of the trip-latch 16 and thereby disengage the same from the catch-bar 19, which disengagement leaves the tripbar 11 free to rockin its bearings, so that the pile of lumber will Vwork onto the side bevel 13 of the trip-bar and thereby oscillate the same to such a position as to allow the pile of lumber to drop directly onto the live shifting-roll S, the rotation of which roll will shift the pile of lumber off of the rolls 5 and onto the rolls 2l of the wagon or other transport, as will be readily understood by those skilled in the art. By manipulating the operating-crank 22 the pile of lumber can be readily unloaded from the wagon 2O or other transport.

With the trip-bar 1l in its tilted position it will be obvious that the apparatus may be employed for unloading a pile of lumberfrom a wagon or other transport by rotating the live shifting-roll in a direction that will shift the pile of lumber back onto the dead pilingrolls 5, from which rolls the pile of lumber maybe carried to aplaner or other machinery.

Irrespective of the trip mechanism for lowering the pile of lumber 6 onto the live shifting-roll 8, it will be obvious that such shifting-roll may be used independently for loading-single planks or lengths of sawed timber on a wagon or car, and in this connection it is to be observed that the live shifting-roll 8 is simply a continuous live shaft that is supported in the position described, so that lumber which is placed thereon will be loaded or unloaded in the desired direction, and said live shaft is extended beyond its bearings and connected with belt or other suitable driving connection.

The trip-latclrlG may be operatedmanually or in a variety of different ways other than herein described, such, for instance, by the means illustrated in Fig. 1 'of the drawings.

In this figure of the drawings the rear axle of the wagon 2O is illustrated as having attached thereto a short supporting-arm 23, on which is pivoted a bell-crank 24C, to one arm of which is connected one end ofa pull wire' or rope 25, which extends to the front of the wagon and is preferably designed to be within convenient reach of the driver, who can operate the bell-crank 24 Without leaving his seat. The bell-crank 24 preferably has attached thereto at 26 one end of a releasing-bar 27,

which normally hangs in a pendent position, but which is designed to be thrown up by means of the Wire or rope 25 against the outer beveled end of the trip-latch 16, and thereby disengage the same from the catch-bar 19,

when the wagon is backed up to the position illustrated in Fig. l of the drawings.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described the invention, what is claimed, and desired to be secured by Letters Patent, is-

1. In an apparatus of the class described, the frame, dead piling-rolls mounted on said frame in the same horizontal plane, a live shifting-roll mounted on the frame beyond the piling-rolls and in a lower plane than the same, and a trip device arranged intermediate of the dead and live rolls and normally supporting the material to be handled out of conta-ct with 'said live roll, substantially as Set forth.

2. In an apparatus of the class described, the frame, parallel dead piling-rolls mounted in fixed positions on said frame, and a live shifting-roll mounted in a fixed position on the frame beyond and parallel with the piling-rolls and in a lower plane than the latter, substantially as set forth.

3. In an apparatus of the class described, the frame, dead piling-rolls mounted on said frame, a live shifting-roll mounted on the frame beyond the piling-rolls, a trip-bar mounted on the frame at one side of the live roll, and a latch connection with said tri p-bar to provide for normally holding the upper edge thereof in a plane above the top surface of the adjacent live roll, substantially as set forth.

4. In an apparatus of the class described, the frame, dead piling-rolls mounted on the frame, a live shifting-roll mounted on the frame beyond the piling-rolls, an oscillating trip-bar journaled on the frame at one side of the live roll and provid ed at its upper edge with a longitudinal supporting-ridge, and at one side of said ridge with a side bevel,.a link rigidly connected at its upper end with said trip-bar, a fixed catch-bar secured on the frame, and a trip-latch pivotally connected at one end with the lower end of said link and provided with a hook at its outer end adapted to normally engage said catch-bar to hold the trip-bar in an upright position and thereby dispose its supportin gridge in a plane above the top surface of the adjacent live roll, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

FRANK MCDONOUGH. lVitnesses:

JOHN H. SIGGERS, THEoDoRE DALTON.

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