US1021585A - Hoisting apparatus. - Google Patents

Description

J. S. EWERT.

HOISTING APPARATUS. ,APPLIUATION rum) AUG. 29,1911.

Patented Mar. 26,1912."

2 SHEETS-'SHEET l.

Men W07 COLUMBIA PLANOGRAPH cm, WASHINGTON, D. c.

J. S. EWERT.

HOISTING APPARATUS.

APPLICATION FILED AUG. 29, 1911.

- Patented Mar. 26, 1912.

2 SHEETSSHEET 2.

COLUMBIA PLANOGRAPH c0., WASHINGTON, u. c.

7 JOHN S. EWERT, OF DOLTON, SOUTH DAKOTA.

HOISTING- APPARATUS.

Specification of Letters Patent.

Application filed August 29, 1911.

Patented Mar. 26, 1912.

Serial No. 646,599.

To all whom it may concern:

Be it known. that 1, JOHN S. EWERT, a citizen of the United States, residing at Dolton, in the county of McCook, State of South Dakota, have invented certain new and useful Improvements in Hoisting Apparatus; and- I do hereby declare the following to be a full, 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.

This invention relates to an improvement in hoisting apparatus of that class especially designed for hoisting hay racks and wagon boxesfrom a wagon bed, and depositing the same on the ground on the opposite side of the apparatus from the wagon.

The principal object of this invention is to provide an apparatus for the purpose described which may be easily placed in position for useand which is capable of operation with a minimum amount of effort.

Another object of the invention is to provide an apparatus of the class described which is composed of a relatively few number of parts, is therefore simple in construc tion, and is cheap to manufacture.

With these and other objects in view, the invention consists in the construction and novel combination of parts'hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims I hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction within the scope of the claims, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Inthe drawings: Figure 1 is a side elevation of the apparatus constructed in accordance with my invention, and showing a wagon disposed in position previous to the hay rack and body being removed there-' from, Fig. 2 is a longitudinal sectional View taken through the standard, the parts attached thereto being also shown in section, Fig; 3 is a detail sectional view taken on the line 3-3 of Fig. 1, Fig. 4: is a detail end view of the horizontal arm, showing the hangers and pulley depending therefrom, Fig. 5 is a detail front elevation of the lower part of the standard showing the hoisting drum and bracket and the braces therefor. Fig. 6 is a perspective view of the grappling arm, and Fig. 7 is a sectional view taken on the line 77 of Fig. 1.

Like reference numerals designate corresponding parts in all the figures of the drawlngs.

Referring to the drawings, the invention comprises a standard 5 preferably formed of piping and having its lower end threaded for engagement with the threaded opening formed in an angle block 7, it being understood that the blook is buried in the ground at any convenient place. Disposed within the upper end of the standard is a rotatable plug8 having a peripheral flange 9 adapted to rest upon the adjacent end of said standard. Integral with and extending upwardly from the plug is a pair of spaced ears 10-10, said ears being formed with alined openings wherethrough passes a pivot pin 12. The body of the plug is formed on its periphery with a recess 13,

said recess being disposed in a plane at right angles to the longitudinal axisof the standard, and extending around substantially one-half the circumference of the lug. This recess forms consequent end walls 14-14: which constitute stops adapted for a purpose hereinafter described. Projecting through a suitable opening formed in the standard 5 is a screw 15, the inner end of the screw being disposed within the recess and adapted to be engaged by one ofthe walls 14 thereof.

A horizontal arm 16 has one end disposed between the ears of the plug and pivotally connected to the pin thereof. Disposed on opposite sides of the'arm and arranged adjacent the outer end thereof are hangers 1717, the upper ends thereof being constandard means of a set screw 22. Slidably mounted above the collar 21 is a sleeve 23 having a pair of spaced ears 23 extending from one face thereof. A bar 24 has one end disposed between the ears 23 and pivotally connected thereto by means of a pin The other end of the bar 24 is forked to form a pair ofspaced ears 2626 adapted to receive the outer end of the horizontal arm. Formed in the ears are openings which are disposed in alinement with each other, and are adapted to register with an opening formed in said horizontal arm. A bolt 29 is disposed within the alined openings.

A U-shaped eye 30 has its end portions disposed on opposite sides of the bar 24, and the extreme ends of said eye are bent around the bolt 29. One of the ends 31 is disposed between the head of the bolt and the bar 24. The other end 32 of the eye is disposed between the member 24 and a nut 33 which is associated with the said bolt. It will thus be observed that by means of the head and nut the ends of the eyes are prevented from lateral spreading and consequent displacement. Also mounted upon the standard 5 is a U-shaped bracket 33 which includes spaced legs 34. 34 and a bight. Offset from the bight portion is an enlargement 36 wherein is formed an opening 37 for receiving the said standard 5. A set screw 38 is associated with the offset portion for holding the bracket in any adjusted position. Rotatably'mounted between the legs of the frame is a hoisting shaft 39, wherein is fixedly mounted a hoisting drum 40. One end of the shaft projects through one leg of the frame and carries a ratchet wheel 41 and a crank handle 42. Pivotally mounted upon the last mentioned leg of the frame is aspring pressed pawl 43 adapted to coact with the ratchet wheel 41, and thereby lock the same against movement in one direction. Secured to the standard 5 below the hoisting drum frame and in spaced relation thereto is a small sleeve 44. Brace arms 4545 each have one end connected to the sleeve 44 at diametrically opposite points by means of pins 46. The other ends of the braces are connected to the outer extremities of the legs 34 by pins 47.

The invention further comprises a hoisting cable which consists of an elongated ring 48 having a central offset portion 49, the ring opposite said offset portion being straight as indicated by the reference numeral 50. Pivotally mounted on the portion 50 of the ring is a plurality of grappling arms 51. Each of these arms is formed of rod metal, and has one end bent at right angles to the longitudinal axis of the ring to form a hook 52, the other end being bent around to form an eye adapted to engage the fiat portion of said ring. The arms are each. furthermore bent intermediate its ends to form a normally inclined upper portion and a vertical lower portion. These arms are arranged in pairs and the hooks of the pairs extend inwardly toward each other. A second pulley 54 is employed and depending from the axle 55 thereof is a U- shaped element 56 having a perforation formed in the bight thereof. Disposed Within the said opening is a hook bolt 58, which is connected to the offset portion 49 of the ring 48. A cable 59 has one end fixedly secured to the hoisting drum, and is then trained over the first mentioned pulley 20, thence around the second mentioned pulley 54, and has its free end connected to a hook 60 which is engageable with the U-shaped clip 30.

In practice, a wagon is driven under the apparatus above described, and the grapple arms are connected to the hay rack 61. The hoisting drum is then actuated to elevate the rack from the wagon body. After the rack has been sufliciently elevated to clear the said body, the horizontal arm is swung around to the other side of the standard.

The rack can then be lowered to the ground,

the movement of the horizontal arm being limited by the end walls of the recess of the plug, as before described. The horizontal arm is then returned to its normal position and the grappling hooks engaged with the wagon body. The wagon body can then be swung around in a manner similar to that employed with the rack, and said body can then be deposited on top of the rack. WVhen it is desired to replace the body and rack the reverse operation is employed, as will be readily understood.

It will also be observed that the horizontal arm can be raised or lowered as may be desired, depending upon the height of the various wagons to be unloaded.

lVhat is claimed is 1. A hoisting apparatus including a standard, a plug mounted in the upper end of the standard for limited rotary move ments and formed on its periphery with a recess forming consequent end walls, said recess being disposed in a plane at right angles to the longitudinal axis of the stand ard, a pin carried by the standard and projecting into the recess and adapted to be engaged by theend walls of said recess to limit the rotary movements of the plug, and a horizontal armpivotally connected to the plug for vertical swinging movements.

2. A hoisting apparatus including a standard, a plug mounted in the upper end of the standard for limited rotary movements, a peripheral flange projecting from the plug and disposed upon the upper end of the standards, the plug below the flange being formed on its periphery with a recess forming consequent end walls, said recess being disposed in a plane at right angles to the longitudinal axis of the standard, a pin carried by the standard and projecting into In testimony whereof, I aflix my sigsfiid rgcess andf adapted to be engagield by nature, in presence of two witnesses.

t e en walls 0- said recess to limit t e rotary movements of the plug, ears projecting JOHN EWERT' from the upper end of the plug, and a hori- Witnesses:

zontal arm pivotally connected-to the ears HENRY J. SMiTH, for vertical swinging movements. J 0s. EnPERT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents, Washington, D. G.

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