US1293182A - Empty-box stacker. - Google Patents

Description

Patented Feb. 4; 1919.

' 2 SHEETS-SHEET 1- WITNESS:

A TTORNE YS.

G. D. PARKER.

EMPTY BOX STACKER.

APPLICATION FILED JULY 29. 1918.

Patented. Feb. 4, 1919.

2 SHEETS-SHEET 2 IN VENTOR.

A TTOR NE YS.

WITNESS:

I the like, whereby 'ficing any of the a barren sesame learner @IBFIICE.

GEORGE n. PARKER, or n'rvnnsinn, CALIFORNIA.

EMPTY-BOX STACKER.

messes.

To all whom it may concern Be it be known that I, GEORGE D. PARKER, a citizen of the United States, residing at Riverside, in the county of Riverside and State of Calif0rnia,'have invented certain new and useful Improvements in. Empty- Box Stackers, of which the following is a specification.

The present invention relates to an improved stacking apparatus for boxes and more particularl toa type of apparatus adapted for use in stacking the newly construeted and labeled boxes used in a packinghouse and in which the fruit is to be packed for shipment.

The object of the'present invention is to automatically stack boxes as they are delivered to the stacker from a box dump or elevator or as they may be delivered to the stacker from a conveyer, the boxes being placed upon the conveyer by tl1e sorters or tothe packing room in asystematic manner and the space occupied thereby .be limited to a minimum. Y With the above mentioned and other objects in view the invention consists in the novel construction and combination of parts hereinafter described, illustrated in the accompanying drawings, and set forth in the claims 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 departin from the spirit or sacrivantages of theinvention. To more fully comprehend the invention, reference is directed to thesaccompanying drawings, wherein: v

Figure l is a view in sidelelevation of the preferred embodiment of my invention.

Fig. 2- is a view in top plan. Fig. 3 is a view in detail plan of the conveyer clutch and the operating trilp therefor. Fig. 4 is a detail view in sidee evation of one of the clutch mechanisms. 4

Fig. 5 is a sectional view taken on line 5-5 a of Fig. 4.

Referring moreparticularly to the several views of the drawings wherein like characters of reference designate corresponding parts, 1, indicates a suitable supporting member and to the same is secured a pair of brackets 2, which pivotally support one end of a suitable box elevating frame, comprising parallel spaced side members 3 from one end Specification of Letters Patent. Application filed July 29, 1918.

. ing members 3.

with trated in Figs. 4

the boxes may bedelivered the drawings,

mechanism on an Patented Feb. 41, 1919.. Serial No. 2517,1570.

of which, extend the angularlv disposed arms 4 and the foot members 5 which are disposed upwardly, preferably at right angles to the side members 3 when said members he 1n a horizontal plane as in the drawing. The members 3 lie referably when in horizontal position" ad acent suitable box support- Pivotally connected to the arms 4, through links.6, are cranks 8 carried by. a hub 9, keyed to rotate with a shaft 10 ournaled at its ends in suitable bearings. the shaft being driven by a suit-able gear 11 operated by a power pinion l2. The shaft is capable of free rotation within the gear 11 but is adapted to be interlocked there by a suitable clutch mechanism illusand 5 of the drawings, and preferably constructed in the following manner: The hub 13 of the clutch is-preferably cored and carries a serrated ring 15 within which is received a clutch hub 16, keyed to rotate with the shaft 10, the clutch hub on its outer surface is provided with a recess 18, in which is mounted a dog 19, pivotally supported at its outer end as at 20, and the free end of said dog being forced outwardly as inFig. 5 of the drawings, by a s ring 21.

On the reception of the free end 0- the dog 19 in one of the serrations'of the rin 15 the shaft 10 and the gear 11 are locke torotate in unison, however in this device single rotation of these elements at mittent intervals is desired, the same controlled by a scribed.

The side members 3 of the frame normally lie in a ,horizontal position, as in only a mechanism hereinafter diethe emptied boxes to be stacked are fed preferably from the labeling machine thereto by the following mechanism: ,The boxes are placed preferably by an attendant or the same-may be positioned by automatic endless eonveyer 22, disposed in line with the frame and having spaced conveyerbars 23 on the outer surface thereof, said conveyer at one end operating over a roller 24 carried by a shaft 25, journaled in suitable bearings and said shaft carrieson its enda drive sprocket 26,

provided with a hub 27, of similar construction to that illustrated in Figs. 4 and 5 of the drawings and employed in connection with the gear 11. lVithin this hub is positioned a clutch mechanism similar to that illustrated in- Figs. f aud 5 of the inter-- being and when in this position,

drawings and cooperating with the gear 11. description of this clutch in connection with the conveyer belt 2; is not thought to be necessary, the purpose of the clutch being to provide intermittent movement forthe belt 2:! when the frame is in a certain position. A trip mechanism for operating the clutch is constructed in the following mantit) by the weight of the frame when ;.piitli of movement or 2 J thereby permitting continuous movement ner: A trip finger 28 is positioned with its free-end adjacent the pawl 19 of the conof the couveyer belt; 1'. during such time as the frame is in horizontal position the boxes as received on the belt 2:2 are con veyed thereby onto the side rails or member 23 of the frame, the boxes within their side walls in engagement and the last conveyed box conveying those on the frame longitudinally thereof boxes contact with the foot member 5, the frame now being filled to its capacity with empty boxes. As the foremost contacts '\\lili the foot member 5, the same rests on the trip lever 31, pivotally mounted toa support as at 32 an connected at its lower end through a link 33, with one end of a bell-crank 3t fulcrumed as at. 35, the free,

end of said bell-crank being adapted formovement into the path of rotation of the. dog 19, thus it will e apparent that on the tipping of the arm 32 of the foremost box contacting with the foot 5. the free end of the bell-crank 3% is withdrawn from contact with the dog 19 permitting the spring 21 to foree'the dog upwardly to cause a simultaneous movement of the gear 11 and shaft 10 which movement pivots the frame on the support '2, raising the free end thereof to the dotted line position Fig, 2 of thedrawiug. This movement enables the spring 36 to elevate the free end of hellcrank 30 and cause'a disengagement of the dog 19 from the. hub 27 of the conveyer -belt drive, thus arresting the movement of the conveyerbelt. As in the drawing, the

movement of the frame is slightly beyond a vertical position. at which time the boxes as supportet'l by the foot member 5 are deposited on a suitable empty box receiving truck 37', capable of being positioned between the supports 2 and movable on small casters 3%; the depositing of the boxes in rotation of the dog until the foremost.

to the. stacker, -to deliver the boxes to t-he'eonveying truck stacked formation upon the truck causes a slight moven'ieut of the truck away from the elevated frame providing a space tor the reception of the next stack of boxes re-.

ceivcd on the side members 3 of the frame. The release of the boxes' from the frame when the same is in its lifted position relieves pi'essili'e' frolii the trip.member 31 and permits the weight of the trip 31 to move the free end of the bell-crank 34 conneetcd therewith into the path of movement. of the dog 19, and as the gear 11 completes itsrevolution lowering the frame to a horizontal position the dogltl is released from its engaged serratiou permitting the shaft It) to remain idle. -'l.liis lowering of the frame to horizontal position also throws the clutch mechanism associated with the conveyer 22 into position to cause the operation of the conveyer.

From my present construction it will be apparent that the conveying of the boxes the operation of the stacker and the return of the stacker to normal posi tion are all automatic movements and it is only necessary that means he provided for placing'the boxes on the conveyer and for removing the truck as the same is filled with emptied boxes.

Having thus described my invention, what. I claim is: I

"1. An apparatus for receiving and stacking receptacles in vertical unit, rows, comprising a horizontally disposed frame fillcriimed at one end and provided at its -t'ul-- crium end with a lateral unit row supporting projection, a receptacle unit row receiving member positioned adjacent the fulcruined end of said frame for successively receiving the vertical unit rows of receptacles from said frame, means for successively feeding receptacles onto the free end of said frame to form thereon a horizontal row of receptacles, and receptacle controlled means thrown into operation on the completion of the formation of a horizontal row of recep-. tacles on said frame for causing movement of said frame on its fulcrum to raise said horizontal row of receptacles to substantially vertical position to discharge said receptacles therefrom in a vertical row onto said receiving member and for returning said frame to horizontal position.

2. An'appartus for receiving and stacking receptacles in vertical unit rows, comprising a horizontally disposed frame fulcrumed at one end and provided at its fulcrum end with a lateral projection, a receptacle unit row receiving member'positioncd ad acent' the fnlcrumed end of said frame for successively receiving the vertical unit rows of receptacles from said frame, means for saccessively feeding receptacles onto the free end of'said frame to form thereon a horillti ' ful prlslng a horizontally disposed frame crum end with alateral crum end with a. lateral zontal row -o"f;receptacles, means controlled by the receptaclespositioned on said frame for causing movementof said frame onits crum to raise said horizontal row of receptacles to substantially vertical osition to discharge said receptacles there rom in a vertical row onto said receiving member and for returning said frame to horizontal position of the receptacle feeding means during the movement of said frame.

3. An apparatus for receiving and stacking receptacles in vertical unit rows, cgllll'llcrurned at one end and provided at its fulprojection, a receptacle unit row receiving member positioned adjacent the fulcrumed end of said frame or successively receiving the vertical unit rows of receptacles from said frame, means for successively feeding receptacles onto the free end of said frame to form thereon a horizontal row of receptacles, controlled means for causing movement of said frame on its fulcrum toraise said horizontal row of receptacles to substantially vertical. position to discharge said receptacles therefrom in a vertical row onto said receiving member and for returning said frame to horizontal position, and means controlled by the movement of said frame for interrupting the feed ing of receptacles to said frame during the raising and lowering of the free end thereof.-

4. An apparatus ing receptacles in vertical unit rows, comprising a horizontally disposed frame fulcrumed at one endv and provided at its fulprojection, a receptacle unit row receiving member positioned adjacent the fulcrumed end of said frame for successivelyireeeiving the-vertical unit rows of receptacles from said ;frame, means for successively feeding receptacles onto the free end 'ofsaid frame to form thereon. a horizontal row of receptacles, and intermit tently operated means controlled bythe re ceptacles positioned on said mg movement of said frame on. its fulcrum to raise said horizontal row of receptacles to substantially vertical position to discharge said receptacles therefrom in a vertical row onto said receiving member and for returning said frame. to horizontal position.

5. An apparatus for receiving and stacking receptacles in vertical unit rows, comprising a horizontally disposedframefuh crumed at one end and provided at its fulcrum end with a lateral projection, a receptacle unit row receiving member t oned adjacentthe fulcrumed end frame for successively receiving the vertical unit rows of, rece means for successlvely posiptacles from said frame; feeding receptacles,

- causing movement of said erum to raise said horizontal row of recepdischarge the same therefrom for receiving and stack-* frame for caus-' row of boxes thereon,

tacles to substantially vertical position to discharge said receptacles therefrom in a vertical row onto said receiving member and tion, and means for interrupting the operafor returning said frame to horizontal position. I

6. An apparatus for receiving receptacles deposited thereon in a horizontal row and for stacking the same in a vertical row unit. the same comprising a horizontally disposed frame fulcrumed at one end and provided at its fulcrum end with a lateral projection, a receptacle unit row receiving truck positioned adjacent the fulcrum end of said frame for successively receiving the vertical of receptacles from said frame, an endless conveyer for depositing receptacles onto said frame and for causing movement thereof longitudinally of said frame to force the foremost receptacle of said horizontal row .mto contact with said lateral projection, and

causing movement of said frame on its fulcrum to raise the row of receptacles thereon to substantially vertical position and to in a vertical row onto said truck and for returning said frame to horizontal position.

An apparatus for receiving receptacles deposited thereon in a-horizontal row and forstacking the safiieiifa vertical row unit, the same comprising a horizontally disposed frame fulcrumed at one end and provided at its fulcrum end with a lateral projection, a receptacle unit row receiving truck positioned am'e for successively receiving the vertical unit rows of receptacles from said frame,

means for depositing receptacles successively onto said frame and for causing move ment thereof longitudinally of said frame to force the foremost receptacle of said horicontact with said lateral prozontal row into jection, actuating 'means for raising and lowering said frame on the completion of a and a trip member actuated by a receptacle on said frame for throwing said actuating means into operation.

8. An apparatus for the described purv.p'ose comprising an elongated frame fula horizontal axis,

onto the free end of said frame to form" thereon a horizontal row of receptacles, and

means-for; raising crumed at one end for pivotal-movement on longitudinal row when said frame is in substantially horizontal" position, actuating said frame from horizonml to Vertical position on the completion of a row of receptacles thereon,

a trip member actuated by a receptacle on said frame for unit rows 4 adjacent the fulcrumed end of said an endless conveyer for feeding receptacles onto said frame in a i aaaiaa throwing said actuating means into opera- Iii testimony whereof I have signed my tion, means for receiving the vertical row of name to this specification in the presence of receptacles as a unit from said frame when two subscribing witnesses.

the same is in substantially vertical posi- GEORGE D. PARKER. 5 tion, and means for interrupting the opera- Witnesses:'

tion of saidconveyer during' such time as S. A. MARKS, I

said frame is notrin horizontal position. CHAS F. BRooKHART.

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