US3347399A - Barrel dumper - Google Patents

Description

Oct. 17, 1967 E. H. ENSINGER 3 5 BARREL DUMPER Filed Jan 17, 1966 2 Sheets-Sheet 1 INVENTOR.

A 7' TORNE K5.

Oct 17, 1967 E. H. ENSINGER BARREL DUMPER 2 Sheets-Sheet '2 Filed Jan. 17, 1966 INVENTOR. I BY 592?: h- E'NJl/VGEA M 42% 69% A TTORNEY I United States Patent 3,347,399 BARREL DUMPER Earl H. Ensinger, 833 E. 139th St., Cleveland, Ohio 44110 Filed Jan. 17, 1966, Ser. No. 521,080 1 Claim. (Cl. 214-314) ABSTRACT OF THE DISCLOSURE A stand on top of which the contents of an open-ended barrel are to be dumped is provided with a compact barrel-dumping mechanism including a piston and cylinder motor connected to a drive lever in turn connected by a link to a lifting lever pivoted to the back side of the stand and having rollers at its free end engageable against a barre1-carrying rack pivoted to the upper rear side of the stand at the top and movable by said motor and levers from a pendant, substantially vertical starting position closely adjacent the rear side of the stand through an arc of about 145 degrees to up-end the barrel. The motor, the drive lever, the link and the inner end of the lifting lever are all enclosed in the stand beneath the top thereof providing a compact arrangement. The angle between the link and the two connected levers provides optimum power transfer during the mid-portion of the working stroke.

This invention relates to improvements in a container lifting device, and more particularly to a barrel lifter wherein a barrel resting in an upright position on a supporting surface is adapted to be secured to a rack which is thereafter swung by the lifting device through an arc of about 140 to 180 whereby to upend the barrel to dump its contents.

Other objects and advantages of the present invention consist in the arrangement of the parts for a simple but very efiicient device.

The objects and advantages of this invention will be clearly set forth in the accompanying specification with reference to the drawings and the essential features will be set forth in the appended claim.

In the drawings:

FIG. 1 is a central sectional view of one embodiment of this invention, this view being taken along the line 11 of FIG. 2;

FIG. 2 is a top plan view of the same device; while FIG. 3 is an end elevational view taken at the right hand side of FIG. 2.

Referring to the drawings, this invention comprises a stand which might rest on the floor or other supporting surface 11, but in the present instance is shown as supported by wheels 12 for rolling movement along the floor. The stand has a floor 13 upon which a barrel 14 may rest while it is secured to the device prior to lifting. A lifter rack 15 is pivotally mounted, by suitable brackets 16, on a pivotal connection 17 located near the top of the stand 10 and toward the right-hand side thereof as viewed in FIG. 1. The rack 15 might take various forms but is here shown as having a bottom 15a, parallel side walls 15b and one end wall 150 at the outer end. The

inner end is preferably left open for free flow of articles out of the barrel when it is in its raised position.

Means is provided in the stand for swinging the rack 15 with its attached barrel about the pivot connection 17 to a position about like that shown in dotted lines in FIG. 1 so as to dump the contents thereof out the lower open end of the barrel. In the form here shown, a cylinder and piston motor or hydraulic jack 18 has its cylinder 18a pivotally connected at 19 to a bracket 20 which is rigidly connected to the stand 10. The piston rod 18b 3,347,399 Patented Oct. 17, 1967 of the jack is pivotally connected at 21 between a pair of gusset plates 22 which depend rigidly below a double drive lever 23 which in turn is pivotally connected at 24 to the stand 10. The outer ends of the double lever 23 are pivotally connected at 25 with a double link 27, the other end of which is pivotally connected at 28 to the inner end of a lifting lever 29. This lever is pivotally connected at 30 with the stand 10. The outer end of this lever is provided with a pair of rollers 31 rotatably mounted on the lever 29 and adapted to engage a flat track which in this case'is the under side 1511 of the rack 15.

Suitable power means is provided for driving the motor or jack 18 and in this case comprises the hydraulic pump 32 mounted on the stand 10 and connected by hydraulic lines 33 and 34 to opposide ends of the cylinder 18a. A control lever 35 is connected by suitable valves (not shown) whereby the operator may cause the hydraulic to the rest position where the' rack 15 is in the dot-dash position of FIG. 1.

The operation of this device should now be clear. With the rack 15 in the dot-dash position of FIG. 1, the operator moves the barrel 14 on the stand floor 13 to a position adjacent the rack and clamps the barrel to the rack 15 by any suitable means. I have here shown arms 36 secured to the rack 15 and having means at their upper ends to secure a chain 37 and a toggle clamp 38 in fixed position between the arms 36 and embracing the barrel 14, after which the clamping toggle lever 38a is moved to the position of FIG. 3 firmly securing the barrel in the rack 15. The operator then moves the lever 35 so as to cause hydraulic fluid to enter the upper end of the jack through conduit 34 and exit through the lower end of the jack through conduit 33. This causes a downward stroke of the piston rod 18b with the resultant dotted positions of pivots 21, 25 and 28. This causes the lifting lever 29 to make a counterclockwise stroke as viewed in FIG. 1 about its pivotal connection 30, such arcuate movement being of the order of to 180. This places the barrel 14 and its actuating levers in the broken line position of FIG. 1 so that the material in the barrel, for instance, in one use of the device wiping cloths, so that they will be dumped out of the barrel onto a suitable receiving surface at 40 which could be a table, a movable conveyor, and the like. To return the barrel to its starting position, the lever 35 is placed in another posi-- tion wherein hydraulic fluid is supplied through conduit 33 and exhausted throng-h conduit 34 to cause an upward movement of the piston rod 18b and a clockwise swinging movement of the lifting lever 29 returning the barrel 14 to the dot-dash position of FIG. 1 where it is adjacent the floor of the stand 13. The chain 37 is then released and another barrel placed in position.

It should be noted that in the full line position of the rack 15 of FIG. 1, the link 27 is approximately at 90 to the lifting lever 29 and at a slightly acute angle with respect to the drive lever 23. Upon further lifting movement of the barrel, the link 27 moves to the dotted line position of FIG. 1 remaining close to a 90 position with respect to lifting lever 29 from a position just preceding the full line showing of FIG. 1 until rollers 31 have passed the midpoint of rack 15 on the side thereof toward the rack pivot 17; and closely approaching a 90 position wtih respect to the drive lever 23 from a position just following the full line showing of FIG. 1 until the final dotted or broken line position is reached. Thus, during the mid-portion of the swinging movement of the rack 15, when the power requirement is greatest, the connection between levers 23 and 29 is in a most eflicient position,

namely, with the link 27 close to a position at right angles to both of the levers.

What is claimed is:

' A barrel lifter comprising a stand adapted to rest on a supporting surface, a lifter rack adapted to be attached to a barrel, a pivotal connection between the inner end of said rack and the top of said stand near the rear side thereof, means connected with said strand for swinging said rack about said pivot connection from a starting position where said barrel is resting upon said surface with the open end up through an arc of about 145 degrees with its open end downward above said stand, said means comprising a lifting lever pivoted intermediate its ends to said stand at a point below said pivotal connection, the outer end of said lever positioned to engage said rack, roller means on said outer end of said lever engaging the lower side of said rack, said lever in said rack starting position being substantially vertical adjacent said rear side of said stand, power means operatively connected with the inner end of said lever for causing said swinging movement of said rack comprising a drive lever having one end pivotally mounted on said stand near the front side thereof, a link pivotally connected between the other end of said drive lever and the inner end of said lifting lever, and said power means comprising a cylinder and piston motor having a pivotal connection with said drive lever intermediate the ends of the latter such that the working stroke of said motor is close to a right angle relationship with said drive lever, and the parts being so constructed and arranged that during the mid-portion of the swinging movement of said rack, when the load on said power means is the greatest, said link lies close to a position at right angles to both said drive lever and said lifting lever for efiicient application of power between said levers.

References Cited UNITED STATES PATENTS 1,843,852 2/1932 Troy. 2,822,113 2/1958 Joiner 214-130X 2,844,264 7/1958 Stirm et al 214130 FOREIGN PATENTS 531,332 8/1955 Italy.

HUGO O. SCI-IULZ, Primary Examiner.

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