US908491A - Wagon rack or box lifting device. - Google Patents

Description

Patented Jan, 5, 1909.

2 SHEBISSHEET 1.

G. A PETERS. WAGON RACK 0R BOX LIPTING DEVICE.

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G. A. PETERS. WAGON RACK 0R BOX LIFTIN G DEVICE.

- APPLICATION FILED JULY 13, 1908. 908,491

Patented Jan. 5, 1909.

2 SHEETS-SHEET 2.

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GEORGE A. PETERS, OF HUTOHINSON, MINNESOTA.

WAGON RACK OR BOX LIFTIN G DEVICE.

Specification of Letters Patent.

Patented Jan. 5, 1909.

Application filed July 13, 1908. Serial No. 443,346.

To all whom it may concern:

Be it known that I, GEORGE A. PETERS, a citizen of the United States, residing at Hutchinson, in the county of McLeod and State of Minnesota, have invented certain new and useful Improvements in Wagon Rack or Box Lifting Devices; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide a simple and efficient hay rack or wagon box lifting device, whereby the rack or boX may be raised off from the running gear of the wagon, under a forward movement of the wagon; and to this end it consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

In the accompanying drawings which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings, Figure 1 is a view in side elevation, with some parts broken away and some parts shown in diagram only, illustrating my invention applied to a hay rack. Fig. 2 is a plan view of the parts shown in Fig. 1. Fig. 3 is a side elevation showing the rack in a position which it will occupy when removed from the wagon running gear; and Fig. lis a detail in plan view, showing a so-called thrust lever which is applied to the rack and is engageable with one of the bolsters of the running gear.

Of the parts of the running gear, the numeral 1 indicates the axles, the numeral 2 the bolsters having posts 3, the numeral 4 the reach, and the numeral 5 the wheels, which latter are indicated by dotted lines only, and all of which parts may be of the usual or any suitable construction.

The body of the rack is made up of laterally s aced body beams 6, transverse tie bars 01' b0 sters 7 resting upon and secured to said beams 6, and longitudinally extended bottom-forming slats 8 secured on top of the tie bars 7. Posts 9 are detachably seated at their lower ends in sockets 10 secured on the ends of the intermediate tie bars 7, and on the rear side of the rear tie bars 7. The front end frame 11, of the usual or any suitable construction, is pivotally connected, at its lower end, to the front ends of the body beams 6. The said body beams 6, when the rack is applied to the running gear, rest upon the two bolsters 2 between the retaining posts 3 thereof.

In applying my invention I employ a pair of transverse crank shafts 12 having long laterally spaced parallel lifting legs 13, the ends of which, as shown, are bent laterally at 13 to afford better contact with the ground. These crank shafts 12 are carried one by each of the long tie bars or bolsters 7 and are journaled in suitable bearings thereon. The intermediate portions of the arms 13 which are on the same side of the rack are connected, for parallel oscillatory movements, by suitable side frame structures which may take various forms but which, as shown, are each made up of a pair of vertically spaced horizontally extended boards 14,, the ends of which are tied together by end bars 15, to the intermediate portions of which latter the intermediate portions of the corresponding lifting legs 13 are pivotally connected, at 16. Normally, or when the legs 13 are turned upward and the side frames supported in their raised and operative positions, as shown in Fig. 1, the said parts are held in such positions by brace rods 17, shown as pivotally connected at their lower ends to one of the tie bars 7, and provided at their free ends with hooks or bent portions that detachably engage eyes 18 on the front lifting legs 13. For a purpose whichwill presently appear, chains or flexible connections 19 connect the end portions of the rear intermediate bar 7 to the rear end lifting legs 13. Pivotally connected at its forward end to the intermediate portion of the said rearmost intermediate tie bar 7 is a so-called thrust lever or latch 20, the free end of which normally engages with the rear bolster 2, as shown in Fig. 1. The upward movement of this thrust lever 20 is limited by a transverse stop 21 carried by the body of the rack, and a coiled spring 22 connected to the intermediate portion of said lever and to the adjacent bolsters 7 yieldingly holds said lever against said stop. Mounted in suitable bearings on the said rear intermediate tie bar 7 is a lever actuated crank rod 23. At one end this rod 23 is bent to form an operating lever 24, and at its intermediate portion it is provided with a baillike crank 25 that works in a U-bolt 26 applied. to the said lever 20. The side portions 14.- of the movable side frames are provided with laterally offset angle brackets 27 that normally engage the intermediate side posts.

9, as best shown in Fig. 2.

When the rack is adjusted as shown in Fig. 1, it is in condition for use. When it is desired to remove the entire rack from the running gear of the wagon, the brace rods 17 are first unhooked from the arms 13 and then the side frames are moved forward and permitted to drop until the free ends of the lifting legs 13 are brought into engagement with the ground, as shown in Fig. 1, by reference to which it will be seen that said legs stand at a forwardly extended incline. Then when the wagon is drawn forward the lifting legs will be rocked on their lower ends until they reach positions beyond their dead centers, as shown in Fig. 3. The chains 19 then serve to limit the forward movement of the rack on the arms and the rack will be gravity-held in its uplifted position. The vertical movement thus imparted to the rack is thus sufficient to permit the running gear of the wagon to be drawn out from under the same, and it of course follows that the wagon may, at any time, run under the body of the said rack. Under the initial forward movement of the wagon after the free ends of the lifting legs have been engaged with the ground, the rear bolster 2, by engagement with the free end of the thrust lever 20, positively forces the rack to travel ahead with the running gear, while the said rack is being raised off from the running gear. When, however, the lift.- ing legs move from one side to the other of their dead center, the rack will be caused to lunge slightly forward, and this will release the free end of the thrust lever 20, and the latter, by its spring 22, will then be again moved upward against the stop 21.

In replacing the rack on the running gear, the latter is run under the body of the rack between the down-turned sides thereof and the free end of the thrust lever 20 is, by a downward movement of the hand-piece 24 engaged with the rear bolster 20, so that, when the rack is pushed rearward and the lifting legs 13 moved to the rear of their dead center, the rack will by gravity be thrust slightly rearward and downward onto the bolsters 2; and, under such movement, the thrust lever 20, acting on the rear bolster 2, will cause the running gear to move slightly backward so that the rack will be properly located on the running gear. The improved lifting device, while especially designed for use in connection with hay racks, is, nevertheless, capable of being applied to racks and wagon boxes of various form, all within the scope of my invention as-herein set forth and claimed.

What I claim is:

1. The combination with a wagon rack or box, of lifting legs pivotally connected thereto and transportable therewith and adapted when their free ends are engaged with the ground and the wagon is drawn forward to lift said rack off from the running gear of the wagon, substantially as described.

2. The combination with a wagon running gear and a rack or box, of front and rear crank shafts having lifting legs, and side frames pivotally connected to the intermediate portions of said lifting legs, the said legs, when their free ends are turned into engagement with the ground, being arranged to lift said rack from the running gear under traveling movement of the running gear, substantially as described.

3. The combination with a wagon running gear and a box or rack, of crank shafts applied to the front and rear portions of said rack and provided with parallel lifting legs, side frames pivotally connected to the intermediate portions of said lifting legs, posts on the body of said rack, and brackets on said side frames detachably engageable with said posts, and which lifting legs, when turned into engagement with the ground, are adapted to lift said rack off from the running gear under traveling movement of said running gear, substantially as described.

4. The combination with a wagon running gear and a rack or box applied thereto, of lifting legs pivotally connected to the body of said rack or box, means connecting said lifting legs for parallel oscillatory movements, means for limiting the downward movements of said lifting legs to positions slightly beyond vertical dead centers, and means for securing said lifting legs in upturned inoperative positions, and which lifting legs, when their free ends are engaged with the ground, are adapted to lift said rack or box from the running gear under traveling movement of said running gear.

5. The combination with a Wagon running gear and a rack or box carried thereby, of lifting legs pivotally connected to said box or rack and when engaged with the ground adapted to lift said box or rack from said gear under traveling movement of said gear, and a movable thrust device engageable with one of the bolsters of said running gear to cause said rack or box to travel with said gear while it is being raised therefrom, sub stantially as described.

6. The combination with a wagon running gear and a rack or box carried thereby, of rock shafts having lifting le s engageable with the ground to lift said rac or box from said running gear under traveling movement of the latter, side frames pivotally connection extending from said thrust lever 10 connected to the intermediate portions of to one side of the rack or boX, substantially said lifting legs and connecting the same as described. for parallel movements; a spring pressed In testimony whereof I aflFiX my signature 5 thrust lever applied to the body of said rack in presence of two witnesses.

or boX and engageable with one of the GEORGE A. PETERS. bolsters of said running gear to cause said I Witnesses: rack to travel with said gear while it is SAM G. ANDERSON, Jr.,

being raised therefrom, and an operating S. G. ANDERSON.

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