US2578277A - Container loading machine having automatic carton ejector - Google Patents

Container loading machine having automatic carton ejector Download PDF

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Publication number
US2578277A
US2578277A US665294A US66529446A US2578277A US 2578277 A US2578277 A US 2578277A US 665294 A US665294 A US 665294A US 66529446 A US66529446 A US 66529446A US 2578277 A US2578277 A US 2578277A
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container
feeder
packages
ejector
row
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US665294A
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Edward D Andrews
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Quaker Oats Co
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Quaker Oats Co
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B5/00Packaging individual articles in containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, jars
    • B65B5/10Filling containers or receptacles progressively or in stages by introducing successive articles, or layers of articles
    • B65B5/106Filling containers or receptacles progressively or in stages by introducing successive articles, or layers of articles by pushers

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  • the presentinvention ⁇ has Vas its object ythe improvement of machinesfor loading large shipping containers with a 4plurality of smaller packagesfor boxs'l Machines oi, this general type are smaller Decke-ees vS11,ceeefsiife reive thereof and A endoithe containen When theNrequisit'evnumber 'of'rows has been fed ,inte the eentaieergihe ille@ eeiiteiner t is ejected from themachine. .Machines euch.
  • ligl isi a ⁇ plan view ofthe machine.
  • a portion of the' container' has been broken away to show the 'top ofthe container tableand ried on with a minimum of rnechanicaldevices thereby not only reducing the initial expense of the equipment; but substantiallyv reducing supervision and maintenance.
  • Theobject is obtained by devising a machine in which the package-row feeding mechanism and container-ejecting mechanism are actuated solely by fluid pressure combined with control devices'which cause the feeding mechanism to. function whenever a container is in position and the requisite number of packages are in positionat .the mouth yof the container.
  • the fluid pressure which is employed in Vthe machine shown anddescribedherein is compressed air, although hydraulic or other pressure means may be used.
  • V The layout of the machine is such that all that is required of theoperatoris 35 tion. standard commercialyalves andttings have ⁇ been employedthroughout. VThe organization, but this ismnot to be Vunderstood as limiting theinventionfto this armingentrenty for the machine'may bemodified or i ⁇ 1nproyed upon Without 5 .depertinairem the principles ef .the itil/.entice asset forth inthe appendedcla'ims ytion and combination of elements shown and de- ,Serleed ⁇ herein ere-the best 1.
  • r iewnepd preferred' means of carrying o ut tthe .objects of the ⁇ inventworows of thefour'required tofill the container.
  • the machine isjust atthe point of feeding the third row of packages into the container.
  • Fig. 2 is aside elevation Iof the machine looking from. the' right Vof Fig. 1, ⁇ the general plane of the view being' shown by the broken line '22 mFi g .1
  • Fig., 2a is a section through a portion of the table on thev line' 2a ⁇ -2 ⁇ aof"Fig. 1.
  • Figl"3 isa "side elevationiooking at ⁇ the machine alongl the broken line 3'-3 in'Fig.' 1.
  • Fig. i is an elevation looking at"the rear of the machine along the, line 4- 4 of Fig- 1.
  • Fig'. 5 is a fragmentary View showing a row of thepackages partiallyentered intothe mouth ofthe container'.
  • Fg. 6 is a AView on the line 6 6 of Fig. 3 showing the timing mechanism which controls the Fig. 7 isa section onthe line, 1- 1 of Fig. 6.
  • Fig.' 8 is adiagrammatic layout showing" the general arrangement f tl'e pressureflins, r ⁇ 'valves and electrical Wiring by which the ⁇ machine is operated. f
  • ⁇ Fi'g.9 is a further layout showing the positions ofthe valves when either the package feeding lever is acting to feed ai'onfoffthe packages or the container e'jecting lei'er 'is moving to 'eject the filled.
  • the conveyor belt C At the right of the wing A is the conveyor belt C which is driven continuously in the direction of the arrow c in Fig. 1. At the sides of the belt are located the two guide rails 5 which terminate just over the edge of the framework I.
  • This conveyor belt receives the packages or boxes D from the filling and sealing machines and carries them to the loading machine where they are pushed in a straight line over a table or plate 6 until they are arrested by the vertical wall 8 carried on the far side of the framework opposite the discharge point of the conveyor belt.
  • the surface of the belt will slip beneath packages which may be arrested by the wall 8 or by the package loader, to be described.
  • packages which may be arrested by the wall 8 or by the package loader, to be described.
  • a solid row of packages will lie across the table Si in position to be fed into the container.
  • a second table 'l which lies across the wing B.
  • the top of the table 'I is slightly lower than the top of the table 6 so that when the container is in position the inside lower wall of the container is on the same level as the top of table 5.
  • the rear edge of the table B is spaced from the table '5, which is offset, as at la, to provide a Slot 3 to receive the lowermost ilap oi the container E. This arrangement keepsthe flap out of the way of the packages.
  • the operator places the container on the table 'I with its open end toward the left as shown in Fig. 2 and inserts the lower ap in the slot 9.
  • the machine To hold the container in position, the machine is provided with an angular bracket I3 under which one corner of the container is received. rhe operator inserts the container over spreaders which hold the side and top iiaps open so the packages may enter.
  • the spreader at the front right-hand corner of the table 6, as viewed in Fig. l, consists of a dual angular plate I5 mounted on a post I4 rising from the framework. One portion I6 of the plate I5 holds the end flap outwardly and the other portion Il' holds the top flap up and out of the way.
  • the several spreaders are mounted so that they project into the path of the packages as they are moved into the container, but yield and spread apart as the packages enter.
  • the parts IS and I8 are pivoted on the posts I4 and I9 and are urged inwardly by coiled springs, one of which is shown at I8a in Fig. Il.
  • the upper portion I'I is pivotally mounted on a pin IIa secured to the upper end of post I4, and rests by gravity on the upper edge of the portion I6. This arrangement facilitates the insertion of the packages.
  • the wall 8 is in alignment with the vertical side of the container and that the ve packages at the leading end of the row are in register with the mouth of the container.
  • control devices are shown as electrical switches and the operation is controlled electrically in the preferred form of the invention. It will be appreciated, however, that air or other fluid control valves would be the mechanical equivalent thereof and may be employed in their stead.
  • the switch 20 which is illustrated in the drawings, may be designated as the container switch, and is located in an aperture in the top of the table l. This switch is urged by the spring a in the direction of the arrow appearing in Fig. 8 so that it tends to rise above the top of the table and in this condition the switch is open, but when a container is properly located on the table, the switch is closed by the weight of the container.
  • the switch 22, which may be designated as the package switch, is located in an aperture in the wall 8. This switch is also urged by the spring 22a. in the direction of the arrow appearing in Fig. 8 so that it tends to project inwardly of the wall 8 in the position shown in Fig. 5, but when the leading package is moved by the belt into position against the wall 8, the switch is depressed and closes.
  • the switches 2! and 22 are both normally open and in series in the electrical circuit 24 which actuates the solenoid 25 that may be located at any convenient point in the machine, such as shown in Fig. 2. While the belt C is in operation, all that the operator is required to do is to place the empty container in position, which act closes the switch 2i), and if the row of packages is across the mouth of the container, or as soon as the forward package closes the switch 22, the solenoid is energized and the package feeding mechanism starts to function.
  • the package loader or pusher is a relatively large, sheet metal plate 28 which is located in alignment with the container.
  • the front face 28a of the feeder or loader 28 when idle, is located a short distance in front of the line of packages D and is of sufncient extent to engage the requisite number of packages.
  • the wing 28h is in alignment with the right-hand inner wall of the container and, therefore, coincides with the meeting faces of the fifth and sixth packages. It is of sufficient extent so lthat it holds back the oncoming row of packages while making its feeding stroke.
  • the loader is carried by any suitable means which supports and guides its horizontal movement.
  • the means shown comprises the two U-shaped arms 30, the upper and shorter branches of which are connected to the plate 28 by sockets 3l carried on the cross plate 32 attached to the back of the plate 28.
  • the lower and longer branches of the arms 33 are received in aligned slide bearings 34 depending from the underside of the framework.
  • the loader is actuated by a lever 35, the lower end of which is pivoted at 3'! in a bracket 38 attached to one of the lower braces 3.
  • the upper end of the lever 36 is connected to one end of a link 4D, the other end of which is pivotally connected to a bracket 4I secured to the back of the loader 28.
  • the lever 36 is pivotally connected to a second ⁇ a standard three-way pilot valve 55.
  • link.144,the'far endof f which -carriesfa piston C45 '(seeFig) movable-in the cylinder 46.
  • g'lhe l'cylinder 4@ is carried on the underside ofaplate 141 whichis pivoted to one of the;members -3-at the point indicated by thenumeral 48 in Fig.y 2.
  • a third link A5i! which actuates thextiming meehanism by which the container ejector functions ,when the fuil complement of packages has been vloaded into the container. This will be described in a later portion of the specification.
  • the piston 45 is actuated bythe fluid pressure, compressed air in ythe present case, when fthe two control devices 2il ⁇ 22 are actuated. As :noted above, this energizes thesolenoid which,
  • the opening of thevvalve 52 v introduces airv into Afvalve of this type is shown diagrammatically in Figs. 8 .and 9. It contains a piston 55 which isspring loaded in the direction of thesmall arrow m.
  • This piston controls a passage through which compressed air passes alongthe line l5'! branch- Thev exhaust port is indicated by the arrow n.
  • the piston 55 When the piston 55 is depressed on opening the valve 52, air under pressure ows through the line 5l and moves the piston 58 which operates the valve mechanism of a standard four-way valveASiJ. rlhe details of this valve are not shown as such valves are available on the open market.
  • the valve mechanism is air loaded in the direction of the arrow o so that when the pressure is relieved from the piston 58 the four-way valve assumes the position shown in Fig.v 8.
  • pressure isA admitted to the top of the piston 58 through the line 51, the piston moves in the direction opposite to the arrow o.
  • the four-way valve receives air under presy- As shown in inder is in direct communication with the line 52 through the conduit (i3, and the right-hand end of the cylinder is in communication with the exhaust p through the line 64.
  • Check valves 55 in the lines ⁇ i3-54 reduce the speed of the piston to the desired point so as to avoid too abrupt connected
  • the four-way valve is valve 58 in position so that it will be struck by the lever 35 and openedV when the lever reaches ,the inner limit of its movement.
  • the location of this valve 68 is shown in Fig. 2.
  • apcam disk 8D On the Vshaft is locatedapcam disk 8D having a single cam formationor humpgl which, in order to givea slight vrdwell after the last loading stroke, -is located slightly behinda ratchet tooth. Bearing against- ⁇ the tace off the.;di sk; 8&1.; in vthe path of the hump-8
  • the container ejector comprises a plate 9D which, when-retracted, lies-a short distance to the rear oiguiderail ⁇ il!y ⁇ inra position to engage the container.
  • TheplateS isl carried on the ends of the U-shaped arms 9
  • the ejector is connected to the pivoted lever which is actuated by the piston 96 in the pivoted cylinder 91, being connected thereto by-the link 98.
  • the return movement of the lever 95" is secured by the twoway valve lil located on the end of the airline 39 in position -to be opened bythe lever at the forward end of its stroke.
  • the lair is supplied to the ejector operating system from a main line I0! connected vto the line 54, at any point,
  • the equivalent four-way vvalve bears the numeral
  • the major difference between the two systems is that the two-way valve 85 is opened once to every four openings of the valve 52 because this is the number of rows of packages which will ill the particular container illustrated and thatthel v alve 85 is cam operated r while the valve, 52 is solenoid operated.
  • Hpackage is employed to, incidate all kinds of articles which may be loaded into the container.
  • pressure lines may be used with the substitution of valves and huid-pressure operated devices as will be understood by a machine designer.
  • a container loading machine comprising the combination of a support for container, means for positioning a row of articles across the mouth of the container, a reciprocating feeder movable to detach a number of said articles from the row and move them into the container, a containe-r ejector, a fluid operated means to recip rocate the feeder, a second fluid operated means to actuate the ejector, and a timing mechanism operated by the feeder to set the second iiuid operated means in motion.
  • a container loading machine comprising the combination of a support for a container, means for positioning a row of articles across the mouth of the container, a reciprocating feeder movable to detach a number of said articles from the row and move them into the container, a container ejector, a fluid operated means to reciprocate the feeder, a second fluid operated means to reciprocate the ejector, and a timing mechanism operated upon a predetermined number of reciprocations of the feeder to set the second fluid operated means in motion.
  • a container loading machine comprising the combination of a table for supporting the container, a conveyor operable to advance a row of packages across the mouth of the container as it rests upon the table, a stop to arrest the row in position in register with the mouth of the container, an electro-magnetic device, a circuit for said device, two normally, open switches inl series in said circuit one of said switches located so as to be closed by pressure exerts by the container when the container is in position on the table and the second of said switches located so as to be closed when the row of packages reaches the stop, a fluid pressure actuated feeder movable across the row of packages to place them in the container, and valve mechanism actuated by the energization of electro-magnetic device by the closing of said circuit to set the feeder in motion.
  • a container loading machine comprising the combination of a table for supporting the container, means to advance a row of packages to a positionV in register with the mouth of the container, a solenoid, an electric circuit for energizing the solenoid, two normally open switches in series in said circuit, one of said switches being closed by the container when in loading position on the table, the second switch being closed by the packages when in position, a feeder reciprocable across the row of packages toward and from the container, and means to set the feeder in operation, said last named means being operated by the energization of the solenoid.
  • a container loading machine comprising the combination of a table for supporting the container, means to advance a row of packages to a position in register with the mouth of the container, a solenoid, an electric circuit for energizing the solenoid, two normally open switches in series in said circuit, one of said switches being located in a position to be closed by the container when in position on the table, the second switch being closed by the packages when in position, a feeder reciprocable across the row 0f packages toward and from the container, a piston and cylinder connected to the feeder, and valve means actuated by the solenoid to admit iuid under pressure to the cylinder and theren by move the feeder toward the container.
  • a container loading machine comprising the combination of a table for supporting the container, means to advance a row of packages to a position in register with the mouth of the container, a solenoid, an electric circuit for energizing the solenoid, two normally open switches in series in said circuit, one of said switches being located in a position to be closed by the container when in position on the table, the second switch being closed by the packages when in position, a feeder reciprocable across the row of packages toward and from the container, a piston and cylinder connected to the feeder, and valve means actuated alternately by the solenoid and by the movement of the feeder to admit iiuid under pressure to opposite ends of the cylinder and thereby reciprocate the feeder.
  • a container loading machine comprising the combination of a table for supporting a container, means to advance a row of packages to a position in register with the mouth of the container, a feeder reciprocable across the row of packages toward and from the container, a piston and cylinder connected to the feeder, and valve means having an actuating element located at the table and in position to be set in operation by the container when in loading position on the table and additional means actuated by the packages when in register with the container to admit fluid under pressure into one end of the cylinder and thereby cause the feeder to move toward the container.
  • a container loading machine comprising the combination of a table for supporting the container, means to advance a row of packages to a position in register with the mouth of the container, a feeder reciprocable toward and from the container, a piston and cylinder connected to the feeder, and valve means set in operation alternately by (i) the presence of the container when in loading position on the table and the packages when in register with the container and (2) Iby the feeder at the end of its forward stroke to admit iiuid under pressure to opposite ends of the cylinder and thereby cause the feeder to reciprocate.
  • a loading machine of the type described for inserting rows of packages in a container conrprisin'g: ⁇ aifreciprocable l package ⁇ v feeder: movable toward: ⁇ and from4 the mouthoff the container, a. reciproca'cl'e" ejector for the container,
  • a loading machine for ⁇ inserting rows of articles in a container comprising a reciprocable article feeder movable toward and from the' mouth of the container, a reci'procable ejectorfor the container, a piston and'-1 cylinder connected to the feeder, a second piston and cylinder connected to the ejector, an electro-magnetic device, a circuit to said device, said circuit being normally open but constructed and adapted to be closed by the positioning of the container and the articles in the path of the feeder, valve means set in motion by the said device to admit fluid pressure to the cylinder to reciprocate the feeder, and a second valve means set in motion by the feeder after it has made a predetermined number ofistrokes to admit fluid pressure to the second cylinder to reciprocate the ejector.
  • a table for supporting a container for supporting a container, a reciprocable feeder for inserting rows of articles successively into the container, a reciprocable ejector for the container movable in a path intersecting the line of movement of the feeder, fluid pressure means to actuate the ejector, valve mechanism to control said fluid pressure means, and a timing mechanism actuated by the feeder and operable after a predetermined number of strokes of the feeder to set the valve mechanism in motion and thereby cause the ejector to operate.
  • a table for supporting a container, a reciprocable feeder for inserting rows of articles successively into the container, 'fluid pressure means to actuate the feeder, a reciprocable container ejector movable across the table, a second uid pressure means to actuate the ejector, a set of valves to control the rst named fluid pressure means and a second set of valves to control the second named fluid pressure means, and a timing mechanism actuated by the feeder and operable after a predetermined number of strokes of the feeder to operate the second set of valves and thereby cause the ejector to reciprocate across the table.
  • a container loading machine comprising the combination of atable for supporting a container, means to advance a row of packages to a position in register with the mouth of the container, two control devices, one of said control devices being actuated by the presence of the container when in loading position on the table, the other control device being actuated by the packages when they are in position at the mouth of the container, a feeder reciprocable across the row of packages toward and from the container, and means to operate said feeder set in motion by the joint action of the said control devices.
  • a container loading machine comprising the combination of a table for supporting a container. means to advance a row of packages to aposition; iny register" withY theg-mouthz o frl the container, two ⁇ control devices, one of said? controf-devices being: actuated by thecontainelf. when in loadingposition on the. table, the other controldevice being actuated by7 the packagesywhen they are in position at the mouth of the container, a feeder reciprocabie across the rowV of packages toward and from the'container, and means to operate said feederA ⁇ seti in motion by the. joint'. action. of the said controll devices, a container-ejector, and a ⁇ timing deviceA controlled bythe feeder andoperable upon a predetermined number of ⁇ operations of the feeder to actuate the container-ejector,
  • a container loading machine comprisingv the combinationy offa table for supportinglaA container, means/.to advance a row of packages to a position in register with' thek mouth of the oon-,- ⁇ tainer, two control devices, one of said control devices being actuated by the presence of the container when in loading position on the table, the other control device being actuated by the packages when they are in position at the mouth of the container, a fluid-pressure actuated feeder reciprocable across the row of packages toward and from the container, and means to operate said feeder set in motion by the joint action of the said control devices 16.
  • a container loading machine comprising the combination of a table for supporting a1 container, means to advance a row of packages to a position in register with the mouth of the container, two control devices, one of said control devices being actuated by the container when in position on the table, the other control device being actuated by the packages when they are in position at the mouth of the container, a fluidpressure actuated feeder reciprocable across the row of packages toward and from the container, and means to operate said feeder set in motion by the joint action of the said control devices, a fluid-pressure actuated container-ejector, and a timing device controlled by the feeder and operable upon a predetermined number of operations of the feeder to actuate the container-ejector.
  • a container loading machine comprising the combination of a stationary support for a container, means for positioning a succession of groups of articles across the mouth of the container, a reciprocating feeder to shift a group of said articles into the container while the container is on the support, an ejector for removing a filled container from the support, fluid operated means to actuate the ejector, and a timing mechanism operated by the feeder to actuate the ejector upon a predetermined number of reciprocations of the feeder.
  • a container loading mechanism comprising the combination of a stationary support for a container, means for positioning a succession of groups of articles across the mouth of the container, a reciprocating feeder to shift a group of said articles into the container while the container is on the support, an ejector for removing a lled container from the support, two normally open switches in series, one switch located in position to be closed by the container on the support and the second switch located in position to be closed by the group of packages when in position in front of the container, means to actuate the feeder only when both switches are closed, fluid operated means to actuate the ejector, and a timing mechanism operated by the feeder to actuate the ejector upon a predetermined number of strokes of the feeder.
  • a container loading machine comprising the combination of a stationary support for a container, means positioning .a succession of groups of articles across the mouth of the container, a reciprocating feeder to shift a group of said articles into the container while the container is on the support, fluid operated means for reciprocating the feeder, an ejector for removing a lled container from the support, two normally open switches in series, one switch located in position to be closed by the container when in loading position on the support and the second switch located in position to be closed by the group of packages when in front of the container, means to actuate the said fluid operated means only when both switches are closed. and timing mechanism to actuate the ejector upon a predetermined number of strokes of the feeder.

Description

Dec. `11, 1951 E D, ANDREWS 2,578,277
CONTAINER LOADING MACHINE HAVING AUTOMATIC CARTON EJEGTOR Filed April 26, 1946 4 Sheets-Shee. 1
IN V E NTOR EDWARD D. ANDREWS @n R NEYS Dec. 11, 1951 E. D. ANDREWS CONTAINER LOADING MACHINE HAVING AUTOMATIC CARTON EJECTOR 4 Sheets-Shea?, 2
Filed April 26, 1946 IN V ENTOR EDWARD DANDQEWS gc ATTQRNEYS et E A Dec. 11, 195? E. D. ANDREWS 2,578,277
CONTAINER LOADING MACHINE HAVING AUTOMATIC CARTON EJECTOR Filed April 26, 194e 4 sheets-sheet s l 50 I|||| In A 22 I"I" Ef q im' lNv EN'ron EDwAlzD D. ANDREWS ATTORNEYS Dec.1l, 1951 E D, ANDREWS 2,578,277
CONTAINER LOADING MACHINE HAVING AUTOMATIC CARTON EJECTCR Filed April 26, 1946 4 sheets-sheet 4 im j ANVENTR m 5w EDWARD D ANDQEws BY @AWT-@A ATTORNEYS feeding the rows into `the `o Patented Dec. l1, 1951 AU'roMnTieoAR'roN EJno'roR' Edward D`. ndrews, Akron, 0hio, assignor to The ""ffQuaker Oats Company, Chicago;- Ill.,v a'corporation of New-Jersey y latenten, 1in-i126. mese@ geen V The presentinvention` has Vas its object ythe improvement of machinesfor loading large shipping containers with a 4plurality of smaller packagesfor boxs'l Machines oi, this general type are smaller Decke-ees vS11,ceeefsiife reive thereof and A endoithe containen When theNrequisit'evnumber 'of'rows has been fed ,inte the eentaieergihe ille@ eeiiteiner t is ejected from themachine. .Machines euch. es .deeeribed here *hereiefere been v operated by'n a series of clutches, cams or the like and ere not .enlygespensire due te the complicated mechanisms required, te, p erferm .the
operations in exatitimed reletien. but. eil-serecuire frequent, supervision.endmaieienenee- Itis., .the purpose .of -the .inventien ,t0 devise a machine bywhieni the. operatiensmeube eei- 19 claims. (o1. 22e-14) old and Well known and cperate'upon theprin- 5 cip le of separatingfrom thefend of la line of the invention may be employed Wherever a number ofarticles of packagesare loaded 'inte la larger receptacle; Ihernachine shown inthe drawings is 'designed' to lad-ifouifrwscontaining ve Yboxesv each intojeachcontainer, but the machine may be adapted' for loadinganynnmber of rows. each containing any'number 4of articles or `packages, into any type of container: While the drawings show 4theloading ofsquare packages,
fit may be used for loading cylindrical packages.
In the drawings: ligl isi a` plan view ofthe machine. In this View a portion of the' container'has been broken away to show the 'top ofthe container tableand ried on with a minimum of rnechanicaldevices thereby not only reducing the initial expense of the equipment; but substantiallyv reducing supervision and maintenance. Theobject is obtained by devising a machine in which the package-row feeding mechanism and container-ejecting mechanism are actuated solely by fluid pressure combined with control devices'which cause the feeding mechanism to. function whenever a container is in position and the requisite number of packages are in positionat .the mouth yof the container. The fluid pressure which is employed in Vthe machine shown anddescribedherein is compressed air, although hydraulic or other pressure means may be used..V The layout of the machine is such that all that is required of theoperatoris 35 tion. standard commercialyalves andttings have `been employedthroughout. VThe organization, but this ismnot to be Vunderstood as limiting theinventionfto this armingentrenty for the machine'may bemodified or i`1nproyed upon Without 5 .depertinairem the principles ef .the itil/.entice asset forth inthe appendedcla'ims ytion and combination of elements shown and de- ,Serleed `herein ere-the best 1. r iewnepd preferred' means of carrying o ut tthe .objects of the`inventworows of thefour'required tofill the container. The machine isjust atthe point of feeding the third row of packages into the container.
Fig. 2 is aside elevation Iof the machine looking from. the' right Vof Fig. 1,` the general plane of the view being' shown by the broken line '22 mFi g .1
Fig., 2a is a section through a portion of the table on thev line' 2a`-2`aof"Fig. 1. Figl"3 isa "side elevationiooking at `the machine alongl the broken line 3'-3 in'Fig.' 1.
Fig. i is an elevation looking at"the rear of the machine along the, line 4- 4 of Fig- 1.
Fig'. 5 is a fragmentary View showing a row of thepackages partiallyentered intothe mouth ofthe container'.
Fg. 6 is a AView on the line 6 6 of Fig. 3 showing the timing mechanism which controls the Fig. 7 isa section onthe line, 1- 1 of Fig. 6.
Fig.' 8 is adiagrammatic layout showing" the general arrangement f tl'e pressureflins, r`'valves and electrical Wiring by which the` machine is operated. f
` Fi'g.9 is a further layout showing the positions ofthe valves when either the package feeding lever is acting to feed ai'onfoffthe packages or the container e'jecting lei'er 'is moving to 'eject the filled. carton( The package feeding lever has been selectedffor this vieni, hut'sthe arrangement is thsarn'e for the container ejector.
Muchnf thepiping 'hasbeenomitted from the general views as the location thereof is"optional and the layouts of niger 'c 'anais Snow the 'principles involved UVarious operating partsof lthe machine are carried upon a 1nairi`ffrarnework l which is" in -th'eA general forrnof ltheitt'erll.. andismade up of structural steel sectins' whicli'it is unnecesletter A, supports the package feeding instrumentalities, while the wing B, at right angles thereto, supports the container ejecting devices. Uprights 2 located at the several corners support the framework I at a convenient height for the operator and several braces or cross members 3 also afford supports for other parts of the mechanism.
At the right of the wing A is the conveyor belt C which is driven continuously in the direction of the arrow c in Fig. 1. At the sides of the belt are located the two guide rails 5 which terminate just over the edge of the framework I. This conveyor belt receives the packages or boxes D from the filling and sealing machines and carries them to the loading machine where they are pushed in a straight line over a table or plate 6 until they are arrested by the vertical wall 8 carried on the far side of the framework opposite the discharge point of the conveyor belt.
The surface of the belt will slip beneath packages which may be arrested by the wall 8 or by the package loader, to be described. When the forward package in the line comes to a halt against the wall 8, a solid row of packages will lie across the table Si in position to be fed into the container.
In alignment with the table 6 is a second table 'l which lies across the wing B. The top of the table 'I is slightly lower than the top of the table 6 so that when the container is in position the inside lower wall of the container is on the same level as the top of table 5. As shown in Fig. 2a the rear edge of the table B is spaced from the table '5, which is offset, as at la, to provide a Slot 3 to receive the lowermost ilap oi the container E. This arrangement keepsthe flap out of the way of the packages. The operator places the container on the table 'I with its open end toward the left as shown in Fig. 2 and inserts the lower ap in the slot 9. One side of the container rests against the guide rail I@ and the closed end of the container is located against a rear end wall I2. To hold the container in position, the machine is provided with an angular bracket I3 under which one corner of the container is received. rhe operator inserts the container over spreaders which hold the side and top iiaps open so the packages may enter. The spreader at the front right-hand corner of the table 6, as viewed in Fig. l, consists of a dual angular plate I5 mounted on a post I4 rising from the framework. One portion I6 of the plate I5 holds the end flap outwardly and the other portion Il' holds the top flap up and out of the way. A second arm i8, located on a post I9 at the opposite corner of the container, holds the other end nap out of the path of the packages.
The several spreaders are mounted so that they project into the path of the packages as they are moved into the container, but yield and spread apart as the packages enter. The parts IS and I8 are pivoted on the posts I4 and I9 and are urged inwardly by coiled springs, one of which is shown at I8a in Fig. Il. The upper portion I'I is pivotally mounted on a pin IIa secured to the upper end of post I4, and rests by gravity on the upper edge of the portion I6. This arrangement facilitates the insertion of the packages.
It will be noted that the wall 8 is in alignment with the vertical side of the container and that the ve packages at the leading end of the row are in register with the mouth of the container.
At this point attention is directed to the two control devices which act to set the machine in motion when two conditions are fulfilled, i. e., an empty container is in place and a full row of packages is lined up in front of the open container.
These control devices are shown as electrical switches and the operation is controlled electrically in the preferred form of the invention. It will be appreciated, however, that air or other fluid control valves would be the mechanical equivalent thereof and may be employed in their stead.
The switch 20, which is illustrated in the drawings, may be designated as the container switch, and is located in an aperture in the top of the table l. This switch is urged by the spring a in the direction of the arrow appearing in Fig. 8 so that it tends to rise above the top of the table and in this condition the switch is open, but when a container is properly located on the table, the switch is closed by the weight of the container.
The switch 22, which may be designated as the package switch, is located in an aperture in the wall 8. This switch is also urged by the spring 22a. in the direction of the arrow appearing in Fig. 8 so that it tends to project inwardly of the wall 8 in the position shown in Fig. 5, but when the leading package is moved by the belt into position against the wall 8, the switch is depressed and closes.
Referring to Fig. 8, the switches 2!) and 22 are both normally open and in series in the electrical circuit 24 which actuates the solenoid 25 that may be located at any convenient point in the machine, such as shown in Fig. 2. While the belt C is in operation, all that the operator is required to do is to place the empty container in position, which act closes the switch 2i), and if the row of packages is across the mouth of the container, or as soon as the forward package closes the switch 22, the solenoid is energized and the package feeding mechanism starts to function.
The package loader or pusher is a relatively large, sheet metal plate 28 which is located in alignment with the container. The front face 28a of the feeder or loader 28, when idle, is located a short distance in front of the line of packages D and is of sufncient extent to engage the requisite number of packages. The wing 28h is in alignment with the right-hand inner wall of the container and, therefore, coincides with the meeting faces of the fifth and sixth packages. It is of sufficient extent so lthat it holds back the oncoming row of packages while making its feeding stroke.
The loader is carried by any suitable means which supports and guides its horizontal movement. The means shown comprises the two U-shaped arms 30, the upper and shorter branches of which are connected to the plate 28 by sockets 3l carried on the cross plate 32 attached to the back of the plate 28. The lower and longer branches of the arms 33 are received in aligned slide bearings 34 depending from the underside of the framework.
The loader is actuated by a lever 35, the lower end of which is pivoted at 3'! in a bracket 38 attached to one of the lower braces 3. The upper end of the lever 36 is connected to one end of a link 4D, the other end of which is pivotally connected to a bracket 4I secured to the back of the loader 28. At an intermediate point the lever 36 is pivotally connected to a second `a standard three-way pilot valve 55.
`ing from the main line.
sure through a branch line '62. Fig. 8, the lever 36 is at the extreme outer end of its travel and the left-hand end of the cylmovement of the lever and its elements.
" link.144,the'far endof fwhich -carriesfa piston C45 '(seeFig) movable-in the cylinder 46. g'lhe l'cylinder 4@ is carried on the underside ofaplate 141 whichis pivoted to one of the;members -3-at the point indicated by thenumeral 48 in Fig.y 2. Also pivotally connected tozthe lever 3,6 isa third link A5i! which actuates thextiming meehanism by which the container ejector functions ,when the fuil complement of packages has been vloaded into the container. This will be described in a later portion of the specification.
AThe piston 45 is actuated bythe fluid pressure, compressed air in ythe present case, when fthe two control devices 2il`22 are actuated. As :noted above, this energizes thesolenoid which,
in' turn, opens a two-Way valve v 52 located in the `main air line conduit 5d for the package loader.
The opening of thevvalve 52 v introduces airv into Afvalve of this type is shown diagrammatically in Figs. 8 .and 9. It contains a piston 55 which isspring loaded in the direction of thesmall arrow m.
This piston controls a passage through which compressed air passes alongthe line l5'! branch- Thev exhaust port is indicated by the arrow n. When the piston 55 is depressed on opening the valve 52, air under pressure ows through the line 5l and moves the piston 58 which operates the valve mechanism of a standard four-way valveASiJ. rlhe details of this valve are not shown as such valves are available on the open market. The valve mechanism is air loaded in the direction of the arrow o so that when the pressure is relieved from the piston 58 the four-way valve assumes the position shown in Fig.v 8. When, however,pressure isA admitted to the top of the piston 58 through the line 51, the piston moves in the direction opposite to the arrow o.
The four-way valve receives air under presy- As shown in inder is in direct communication with the line 52 through the conduit (i3, and the right-hand end of the cylinder is in communication with the exhaust p through the line 64. Check valves 55 in the lines {i3-54 reduce the speed of the piston to the desired point so as to avoid too abrupt connected While the lever is moving in the direction of vthe arrow q in Fig. 9, the four-way valve is valve 58 in position so that it will be struck by the lever 35 and openedV when the lever reaches ,the inner limit of its movement. The location of this valve 68 is shown in Fig. 2. It-is onthe end of a branch line 69 from an extension of` .f the main line 54 and discharges to the atmos-U phere at r. When the valve 63 is openedin the manner set forth, the pilot valve 55 opens the line 5l' to the exhaust n, whereupon thepiston 53 moves to the right in Fig. 8 and the linev ,52--63 is opened through the four-way valve 6 0,
andthe lever .36 completesitsreturnstroke,
where it will remain until both `switches 2liw22 s; arefagain closed.
.As stated above, the mechanism which has 'The link Eil-is pivotally connected at the end -remote `from the lever. 3 5-to a ping12 carried in the outer ends of rocker arms 13 which are `rotatable on va shaft lmounted in brackets it securedtofone -of the -cross members3. On the shaft 75 ishkeyed the four-step vratchet i8 which isrotatedintermittently by the paw119 carried Vbythe pin 12. 'Iherefore,V as the lever 35 makes eachl return strokeafter movingy a -row of packages into-the 4 container theshaft-75 is rotated a iruarterpia-` turn. If` the numberrof rows to fill a containerfwas changed; theratchet would be changedto havea corresponding number of teeth.
On the Vshaft is locatedapcam disk 8D having a single cam formationor humpgl which, in order to givea slight vrdwell after the last loading stroke, -is located slightly behinda ratchet tooth. Bearing against-` the tace off the.;di sk; 8&1.; in vthe path of the hump-8|, is thelever 8 4 which is pressed against the disk by spring 84a.. When the lever B4 is moved by the hump 8i this serves to open a third two-way valve which `controls the air circuits which in turnactuate the ejector in the manner to be later described.
The container ejector comprises a plate 9D which, when-retracted, lies-a short distance to the rear oiguiderail` il!y `inra position to engage the container. TheplateS isl carried on the ends of the U-shaped arms 9| similar to the arms 30 and similarly mounted except that the upper branches of the'arms are guided in supplementary brackets 92. The ejector is connected to the pivoted lever which is actuated by the piston 96 in the pivoted cylinder 91, being connected thereto by-the link 98. The return movement of the lever 95" is secured by the twoway valve lil located on the end of the airline 39 in position -to be opened bythe lever at the forward end of its stroke. The lair is supplied to the ejector operating system from a main line I0! connected vto the line 54, at any point,
and receiving air under pressure from a common source.
As the operation of the ejector system is the same as has been describedfor the loader system, no additional description is needed. The equivalent four-way vvalve bears the numeral |02 and the three-waypilot valve the numeral H13. The major difference between the two systems is that the two-way valve 85 is opened once to every four openings of the valve 52 because this is the number of rows of packages which will ill the particular container illustrated and thatthel v alve 85 is cam operated r while the valve, 52 is solenoid operated.
Operation The operator placesthe empty container on the table extension 'I with the open end presented to the loader. If the row of packages D is advanced so that the leading one rests against the vnecessary toi-lll the., container the` cam disk 8U vopens thevalve 35i-and,v sets in. motion Vthe "ejector B which moves the lled containerpff removal of the container opens the switch 20 and the circuit to the solenoid is broken and the machine stops until a fresh container is put in place. While the container is in place the circuit is broken each time a row of packages is moved into the container but it is reestablished whenever the row of packages again assumes the position shown in Fig. 1.
It Will be seen that the complete automatic operation of the loader and ejector is effected wholly by fluid pressure, in conjunction with the electrical starting system represented by the switches Eil- 22 or an equivalent thereof. There are no complicated clutches or like mechanical devices which have heretofore made machines of this type so expensive both as to initial cost and maintenance charges.
The machine shown herein is illustrative of the invention only and it is not intended to limit the invention to the specific embodiment thereof which has just been described. The term Hpackage is employed to, incidate all kinds of articles which may be loaded into the container.
As mechanical equivalents for the electrical circuits shown, pressure lines may be used with the substitution of valves and huid-pressure operated devices as will be understood by a machine designer.
What is claimed is:
l. A container loading machine comprising the combination of a support for container, means for positioning a row of articles across the mouth of the container, a reciprocating feeder movable to detach a number of said articles from the row and move them into the container, a containe-r ejector, a fluid operated means to recip rocate the feeder, a second fluid operated means to actuate the ejector, and a timing mechanism operated by the feeder to set the second iiuid operated means in motion.
2. A container loading machine comprising the combination of a support for a container, means for positioning a row of articles across the mouth of the container, a reciprocating feeder movable to detach a number of said articles from the row and move them into the container, a container ejector, a fluid operated means to reciprocate the feeder, a second fluid operated means to reciprocate the ejector, and a timing mechanism operated upon a predetermined number of reciprocations of the feeder to set the second fluid operated means in motion.
3. A container loading machine comprising the combination of a table for supporting the container, a conveyor operable to advance a row of packages across the mouth of the container as it rests upon the table, a stop to arrest the row in position in register with the mouth of the container, an electro-magnetic device, a circuit for said device, two normally, open switches inl series in said circuit one of said switches located so as to be closed by pressure exerts by the container when the container is in position on the table and the second of said switches located so as to be closed when the row of packages reaches the stop, a fluid pressure actuated feeder movable across the row of packages to place them in the container, and valve mechanism actuated by the energization of electro-magnetic device by the closing of said circuit to set the feeder in motion.
4. A container loading machine comprising the combination of a table for supporting the container, means to advance a row of packages to a positionV in register with the mouth of the container, a solenoid, an electric circuit for energizing the solenoid, two normally open switches in series in said circuit, one of said switches being closed by the container when in loading position on the table, the second switch being closed by the packages when in position, a feeder reciprocable across the row of packages toward and from the container, and means to set the feeder in operation, said last named means being operated by the energization of the solenoid.
5. A container loading machine comprising the combination of a table for supporting the container, means to advance a row of packages to a position in register with the mouth of the container, a solenoid, an electric circuit for energizing the solenoid, two normally open switches in series in said circuit, one of said switches being located in a position to be closed by the container when in position on the table, the second switch being closed by the packages when in position, a feeder reciprocable across the row 0f packages toward and from the container, a piston and cylinder connected to the feeder, and valve means actuated by the solenoid to admit iuid under pressure to the cylinder and theren by move the feeder toward the container.
6. A container loading machine comprising the combination of a table for supporting the container, means to advance a row of packages to a position in register with the mouth of the container, a solenoid, an electric circuit for energizing the solenoid, two normally open switches in series in said circuit, one of said switches being located in a position to be closed by the container when in position on the table, the second switch being closed by the packages when in position, a feeder reciprocable across the row of packages toward and from the container, a piston and cylinder connected to the feeder, and valve means actuated alternately by the solenoid and by the movement of the feeder to admit iiuid under pressure to opposite ends of the cylinder and thereby reciprocate the feeder.
7. A container loading machine comprising the combination of a table for supporting a container, means to advance a row of packages to a position in register with the mouth of the container, a feeder reciprocable across the row of packages toward and from the container, a piston and cylinder connected to the feeder, and valve means having an actuating element located at the table and in position to be set in operation by the container when in loading position on the table and additional means actuated by the packages when in register with the container to admit fluid under pressure into one end of the cylinder and thereby cause the feeder to move toward the container.
8. A container loading machine comprising the combination of a table for supporting the container, means to advance a row of packages to a position in register with the mouth of the container, a feeder reciprocable toward and from the container, a piston and cylinder connected to the feeder, and valve means set in operation alternately by (i) the presence of the container when in loading position on the table and the packages when in register with the container and (2) Iby the feeder at the end of its forward stroke to admit iiuid under pressure to opposite ends of the cylinder and thereby cause the feeder to reciprocate.
9. A loading machine of the type described for inserting rows of packages in a container conrprisin'g:` aifreciprocable l package`v feeder: movable toward:` and from4 the mouthoff the container, a. reciproca'cl'e" ejector for the container,
a piston and cylinder connected to the feeder,
a second piston and` cylinder'v connected to the ejector, `valve means set. inA motionbythe; positioning of the container andthe packages in the path ofthe feeder to. admit. fluid pressure to the rst cylinder, to' reciprocate the feeder, and a second valve meansv set in motion by the feeder after ithas made a predeterminednumber of strokes toadmit iiuidl pressure; t the second cylinder to reciprocate the ejector.
10..A loading machine for` inserting rows of articles in a container, comprising a reciprocable article feeder movable toward and from the' mouth of the container, a reci'procable ejectorfor the container, a piston and'-1 cylinder connected to the feeder, a second piston and cylinder connected to the ejector, an electro-magnetic device, a circuit to said device, said circuit being normally open but constructed and adapted to be closed by the positioning of the container and the articles in the path of the feeder, valve means set in motion by the said device to admit fluid pressure to the cylinder to reciprocate the feeder, and a second valve means set in motion by the feeder after it has made a predetermined number ofistrokes to admit fluid pressure to the second cylinder to reciprocate the ejector.
il. In a machine of the character described, a table for supporting a container, a reciprocable feeder for inserting rows of articles successively into the container, a reciprocable ejector for the container movable in a path intersecting the line of movement of the feeder, fluid pressure means to actuate the ejector, valve mechanism to control said fluid pressure means, and a timing mechanism actuated by the feeder and operable after a predetermined number of strokes of the feeder to set the valve mechanism in motion and thereby cause the ejector to operate.
12. In a machine of the character described, a table for supporting a container, a reciprocable feeder for inserting rows of articles successively into the container, 'fluid pressure means to actuate the feeder, a reciprocable container ejector movable across the table, a second uid pressure means to actuate the ejector, a set of valves to control the rst named fluid pressure means and a second set of valves to control the second named fluid pressure means, and a timing mechanism actuated by the feeder and operable after a predetermined number of strokes of the feeder to operate the second set of valves and thereby cause the ejector to reciprocate across the table.
13. A container loading machine comprising the combination of atable for supporting a container, means to advance a row of packages to a position in register with the mouth of the container, two control devices, one of said control devices being actuated by the presence of the container when in loading position on the table, the other control device being actuated by the packages when they are in position at the mouth of the container, a feeder reciprocable across the row of packages toward and from the container, and means to operate said feeder set in motion by the joint action of the said control devices.
14. A container loading machine comprising the combination of a table for supporting a container. means to advance a row of packages to aposition; iny register" withY theg-mouthz o frl the container, two` control devices, one of said? controf-devices being: actuated by thecontainelf. when in loadingposition on the. table, the other controldevice being actuated by7 the packagesywhen they are in position at the mouth of the container, a feeder reciprocabie across the rowV of packages toward and from the'container, and means to operate said feederA` seti in motion by the. joint'. action. of the said controll devices, a container-ejector, and a` timing deviceA controlled bythe feeder andoperable upon a predetermined number of` operations of the feeder to actuate the container-ejector,
15. A container loading machine comprisingv the combinationy offa table for supportinglaA container, means/.to advance a row of packages to a position in register with' thek mouth of the oon-,-` tainer, two control devices, one of said control devices being actuated by the presence of the container when in loading position on the table, the other control device being actuated by the packages when they are in position at the mouth of the container, a fluid-pressure actuated feeder reciprocable across the row of packages toward and from the container, and means to operate said feeder set in motion by the joint action of the said control devices 16. A container loading machine comprising the combination of a table for supporting a1 container, means to advance a row of packages to a position in register with the mouth of the container, two control devices, one of said control devices being actuated by the container when in position on the table, the other control device being actuated by the packages when they are in position at the mouth of the container, a fluidpressure actuated feeder reciprocable across the row of packages toward and from the container, and means to operate said feeder set in motion by the joint action of the said control devices, a fluid-pressure actuated container-ejector, and a timing device controlled by the feeder and operable upon a predetermined number of operations of the feeder to actuate the container-ejector.
17. A container loading machine comprising the combination of a stationary support for a container, means for positioning a succession of groups of articles across the mouth of the container, a reciprocating feeder to shift a group of said articles into the container while the container is on the support, an ejector for removing a filled container from the support, fluid operated means to actuate the ejector, and a timing mechanism operated by the feeder to actuate the ejector upon a predetermined number of reciprocations of the feeder.
18. A container loading mechanism comprising the combination of a stationary support for a container, means for positioning a succession of groups of articles across the mouth of the container, a reciprocating feeder to shift a group of said articles into the container while the container is on the support, an ejector for removing a lled container from the support, two normally open switches in series, one switch located in position to be closed by the container on the support and the second switch located in position to be closed by the group of packages when in position in front of the container, means to actuate the feeder only when both switches are closed, fluid operated means to actuate the ejector, and a timing mechanism operated by the feeder to actuate the ejector upon a predetermined number of strokes of the feeder.
19. A container loading machine comprising the combination of a stationary support for a container, means positioning .a succession of groups of articles across the mouth of the container, a reciprocating feeder to shift a group of said articles into the container while the container is on the support, fluid operated means for reciprocating the feeder, an ejector for removing a lled container from the support, two normally open switches in series, one switch located in position to be closed by the container when in loading position on the support and the second switch located in position to be closed by the group of packages when in front of the container, means to actuate the said fluid operated means only when both switches are closed. and timing mechanism to actuate the ejector upon a predetermined number of strokes of the feeder.
EDWARD D. ANDREWS.
REFERENCES CITED The following references are of record in the le of this patent:
UNITED STATES PATENTS Number Name Date 1,568,082 Mitton Jan. 5, 1926 1,740,893 Hoyt et al Dec. 24, 1929 1,976,128 Hurst Oct. 9, 1934 2,053,418 Braren Sept. 8, 1936 2,109,294 Kimball et al Feb. 22, 1838 2,124,962 Ferguson et al. July 26, 1938 2,319,167 Stewart May 11, 1943 2,470,795 Socke May 24, 1947
US665294A 1946-04-26 1946-04-26 Container loading machine having automatic carton ejector Expired - Lifetime US2578277A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2698706A (en) * 1951-09-13 1955-01-04 Ecusta Paper Corp Cigarette paper booklet packing device
US2738116A (en) * 1951-04-28 1956-03-13 R W Barraclough Ltd Machine for packing articles into containers
US2909874A (en) * 1957-08-27 1959-10-27 Redington Co F B Packaging machine
US2961246A (en) * 1957-09-11 1960-11-22 Donnelley & Sons Co Apparatus for and a method of revising type in columnar form
DE1158001B (en) * 1961-04-07 1963-11-21 Torwegge Maschf F Device for transporting plate-shaped workpieces
DE1168831B (en) * 1961-10-30 1964-04-23 Heinrich Schaefer Dipl Ing Transfer device for loading and unloading pallets
US3231107A (en) * 1964-03-09 1966-01-25 Auto Pak Company Apparatus for the compaction and disposal of refuse

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US1568082A (en) * 1924-04-24 1926-01-05 Borden Co Apparatus for loading trays with cans
US1740893A (en) * 1929-01-14 1929-12-24 Simes T Hoyt Tray-filling machine
US1976128A (en) * 1930-05-17 1934-10-09 George L Hurst Pneumatic caser
US2053418A (en) * 1930-12-11 1936-09-08 Standard Knapp Corp Of New Yor Cigarette packing machine
US2109294A (en) * 1934-02-07 1938-02-22 Standard Knapp Corp Case packing machine
US2124962A (en) * 1936-03-30 1938-07-26 Jl Ferguson Co Case loader
US2319167A (en) * 1941-11-10 1943-05-11 Crown Cork & Seal Co Casing machine
US2470795A (en) * 1945-03-30 1949-05-24 American Can Co Can stacking machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1568082A (en) * 1924-04-24 1926-01-05 Borden Co Apparatus for loading trays with cans
US1740893A (en) * 1929-01-14 1929-12-24 Simes T Hoyt Tray-filling machine
US1976128A (en) * 1930-05-17 1934-10-09 George L Hurst Pneumatic caser
US2053418A (en) * 1930-12-11 1936-09-08 Standard Knapp Corp Of New Yor Cigarette packing machine
US2109294A (en) * 1934-02-07 1938-02-22 Standard Knapp Corp Case packing machine
US2124962A (en) * 1936-03-30 1938-07-26 Jl Ferguson Co Case loader
US2319167A (en) * 1941-11-10 1943-05-11 Crown Cork & Seal Co Casing machine
US2470795A (en) * 1945-03-30 1949-05-24 American Can Co Can stacking machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738116A (en) * 1951-04-28 1956-03-13 R W Barraclough Ltd Machine for packing articles into containers
US2698706A (en) * 1951-09-13 1955-01-04 Ecusta Paper Corp Cigarette paper booklet packing device
US2909874A (en) * 1957-08-27 1959-10-27 Redington Co F B Packaging machine
US2961246A (en) * 1957-09-11 1960-11-22 Donnelley & Sons Co Apparatus for and a method of revising type in columnar form
DE1158001B (en) * 1961-04-07 1963-11-21 Torwegge Maschf F Device for transporting plate-shaped workpieces
DE1168831B (en) * 1961-10-30 1964-04-23 Heinrich Schaefer Dipl Ing Transfer device for loading and unloading pallets
US3231107A (en) * 1964-03-09 1966-01-25 Auto Pak Company Apparatus for the compaction and disposal of refuse

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