Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
318 words
A macHine for forming a package which is characterized by an assembly of containers of bottle like form which are in double row, transversely paired alignment and enclosed in a tube forming foldable blank, the blank being initially seated on the top of the containers with side wall forming panels depending from a top wall forming panel and terminating at a hinged connection with bottom wall forming panels, which bottom wall forming panels have cooperating interlocking connecting elements, said machine comprising conveyor means for advancing successive assemblies of the containers and packaging blanks along a predetermined path, a pair of endless traveling conveyors mounted for operation with generally parallel runs thereof spaced laterally and disposed on opposite sides of the path of said conveyor means for advancing successive container and blank assemblies, carriage forming members mounted on said traveling conveyors in paired relation and associated guide members arranged so that the members of each pair of said carriage members are held in oppositely disposed spaced relation as they traverse said oppositely disposed conveyor runs of said traveling conveyors, each of said carriage forming members having means in the form of a plurality of fingers thereon which are slidably mounted on each of said carriage members for movement toward said path along which said container and blank assemblies are advanced between said opposed runs of said traveling conveyors, means to move said fingers toward the path of said assembly advancing conveyor means so as to engage said fingers in predetermined sequence with the depending bottom wall forming panels of successive container and blank assemblies at points adjacent the hinged connection of said bottom wall forming panels with the side wall forming panels so as to force said bottom wall forming panels into bottom wall forming relation beneath said containers and to position the connecting elements to be interengaged while the blank is drawn tightly about the assembly of containers.
Claim 2
Dependent Claim
318 words
A macHine for forming a package which is characterized by an assembly of containers of bottle like form which are in double row, transversely paired alignment and enclosed in a tube forming foldable blank, the blank being initially seated on the top of the containers with side wall forming panels depending from a top wall forming panel and terminating at a hinged connection with bottom wall forming panels, which bottom wall forming panels have cooperating interlocking connecting elements, said machine comprising conveyor means for advancing successive assemblies of the containers and packaging blanks along a predetermined path, a pair of endless traveling conveyors mounted for operation with generally parallel runs thereof spaced laterally and disposed on opposite sides of the path of said conveyor means for advancing successive container and blank assemblies, carriage forming members mounted on said traveling conveyors in paired relation and associated guide members arranged so that the members of each pair of said carriage members are held in oppositely disposed spaced relation as they traverse said oppositely disposed conveyor runs of said traveling conveyors, each of said carriage forming members having means in the form of a plurality of fingers thereon which are slidably mounted on each of said carriage members for movement toward said path along which said container and blank assemblies are advanced between said opposed runs of said traveling conveyors, means to move said fingers toward the path of said assembly advancing conveyor means so as to engage said fingers in predetermined sequence with the depending bottom wall forming panels of successive container and blank assemblies at points adjacent the hinged connection of said bottom wall forming panels with the side wall forming panels so as to force said bottom wall forming panels into bottom wall forming relation beneath said containers and to position the connecting elements to be interengaged while the blank is drawn tightly about the assembly of containers.
Claim 3
Dependent Claim
69 words
A machine as set forth in claim 1 wherein said carriage forming members each have a bracket slidably mounted thereon with said finger means carried on said bracket and extending outboard of the path of travel of said carriage forming members and cam means for moving said fingers and reciprocating said bracket so as to project said fingers into and out of engagement with said bottom wall forming panels.
Claim 4
Dependent Claim
36 words
A machine as set forth in claim 2 wherein spring means is provided for urging said slidably mounted bracket into a retracted position where said fingers are out of engagement with said bottom wall forming panels.
Claim 5
Dependent Claim
95 words
A machine for forming a package as set forth in claim 1 wherein the packaging blank is further characterized by the provision of finger accommodating apertures at the hinged connection of said bottom wall forming panels with said side wall forming panels and wherein said machine includes finger means having portions arranged so as to move in a path extending through said apertures and into supporting relation beneath the containers and other portions arranged to engage aperture defining edges of said bottom wall forming panels so as to draw the panels tightly about the containers.
Claim 6
Dependent Claim
87 words
A machine as set forth in claim 1 wherein said carriage forming members each have a bracket movably mounted thereon with said finger means carried on said bracket, means for moving said bracket toward the path of said assembly advancing conveyor means so as to engage said finger means with a bottom wall forming panel and said finger means including finger members having an abutment forming portion for engaging said bottom wall forming panel and an extended portion for movement into container supporting relation beneath the containers.
Claim 7
Dependent Claim
298 words
A machine for applying carton blanks to groups of containers wherein the containers are aligned in double row, transversely paired relation and each carton has a top wall forming panel and depending side wall forMing panels terminating at hingedly connected, bottom closure forming panels, with foldable end wall forming panels hinged to the side wall forming panels for at least partially closing the ends of the carton which end wall forming panels have hinged panels forming anchoring tabs on their lower ends which are adapted to be folded beneath the end containers in the carton, said machine comprising means for feeding thereto successive groups of the containers in double row, transversely paired alignment, the successive groups each having a carton blank deposited thereon with the side walls disposed in downwardly depending relation along the opposite sides of the group of containers, means for advancing the successive container and blank assemblies along a predetermined path, endless conveyor means mounted for travel in a generally horizontal plane with opposed runs thereof traveling on opposite sides of the path of said assembly advancing means on which there are advancing assemblies of containers and blanks, a series of longitudinally spaced carriage assemblies mounted for outboard movement and in longitudinally spaced relation on said endless conveyor means, means disposed along said path of travel to move a pair of said carriages when said pair of carriages are traveling along said opposed conveyor runs on opposite sides of said path of travel toward each successive assembly of containers and blanks advancing along said path of travel and said carriages each having means in the form of a plurality of finger members thereon for engaging certain of said carton forming panels in predetermined sequence so as to fold said panels into predetermined carton closing position.
Claim 8
Dependent Claim
298 words
A machine for applying carton blanks to groups of containers wherein the containers are aligned in double row, transversely paired relation and each carton has a top wall forming panel and depending side wall forMing panels terminating at hingedly connected, bottom closure forming panels, with foldable end wall forming panels hinged to the side wall forming panels for at least partially closing the ends of the carton which end wall forming panels have hinged panels forming anchoring tabs on their lower ends which are adapted to be folded beneath the end containers in the carton, said machine comprising means for feeding thereto successive groups of the containers in double row, transversely paired alignment, the successive groups each having a carton blank deposited thereon with the side walls disposed in downwardly depending relation along the opposite sides of the group of containers, means for advancing the successive container and blank assemblies along a predetermined path, endless conveyor means mounted for travel in a generally horizontal plane with opposed runs thereof traveling on opposite sides of the path of said assembly advancing means on which there are advancing assemblies of containers and blanks, a series of longitudinally spaced carriage assemblies mounted for outboard movement and in longitudinally spaced relation on said endless conveyor means, means disposed along said path of travel to move a pair of said carriages when said pair of carriages are traveling along said opposed conveyor runs on opposite sides of said path of travel toward each successive assembly of containers and blanks advancing along said path of travel and said carriages each having means in the form of a plurality of finger members thereon for engaging certain of said carton forming panels in predetermined sequence so as to fold said panels into predetermined carton closing position.
Claim 9
Dependent Claim
94 words
A machine as set forth in claim 6 wherein said carriage assemblies each have a bracket member mounted thereon with said finger means carried on said bracket member so as to extend in outwardly directed relation when advanced along said opposed conveyor runs and cam means disposed along said opposed conveyor runs for moving said bracket member to extend said finger means toward said container and blank assembly advancing means so as to engage said end wall forming panels and said bottom wall forming panels and to fold said panels toward wall forming position.
Claim 10
Dependent Claim
91 words
A machine as set forth in claim 6 wherein said carriage assemblies each have a bracket member movably mounted thereon with said finger means carried in outwardly extending relation on said bracket member, and cam means disposed along said opposed conveyor runs for controlling the movement of said bracket member and said finger means thereon so that certain of said finger members may be engaged with said end wall forming panels, said anchoring tabs and said bottom wall forming panels so as to move said panels into predetermined carton closing position.
Claim 11
Dependent Claim
68 words
A machine as set forth in claim 6 wherein said carriage assemblies each have an elongate bracket forming bar member slidably mounted thereon with said finger means carried on said bar member and said finger means comprising relatively flat finger members mounted in spaced relation along said bar member, certain of said finger members being disposed in a horizontal plane and other finger members disposed in vertical planes.
Claim 12
Dependent Claim
104 words
A machine as set forth in claim 6 wherein said carriage assemblies each have an elongate bracket forming bar member movably mounted thereon and cam means disposed along said opposed conveyor runs for moving said bar members outwardly of the path of travel of said carriages, said bar member having said finger means mounted thereon, said finger means comprising finger members in the form of relatively flat plate elements of different length with the longer plate elements at opposite ends of said bar member and positioned to engage in sequence said anchoring tabs, said end wall forming panels and said bottom closure forming panels.
Claim 13
Dependent Claim
246 words
In a packaging machine for applying cartons to groups of bottles or like containers wherein the containers are aligned in double row, transversely paired relation and each carton has a top wall forming panel, depending side wall forming panels terminating at hingedly connected, bottom wall forming panels which have interlocking connecting elements, and foldable end wall forming panels for partially closing the ends of the carton which end wall forming panels have hinged anchoring tabs on their lower ends adapted to be folded beneath the end containers in the carton, conveyor means for advancing successive groups of the containers each having a carton thereon with the side wall forming panels folded down along the sides of the containers, endless conveyor means mounted for travel in a generally horizontal plane with opposed runs thereof on opposite sides of a path along which the containers are adapted to advance, means associated with said endless conveyor means for engaging said wall forming panels and moving them into wall forming position, and means in the form of hooks operative in pairs beneath said path for movement toward each other in a longitudinal vertical plane and into engagement with leading and trailing anchoring tabs on each successive carton advanced along said path so as to position said anchoring tabs for interlocking engagement with certain of said bottom wall panel connecting elements which anchoring tab positioning means is mounted on a traveling conveyor for vertical swinging movement in a longitudinal vertical plane.
Claim 14
Dependent Claim
246 words
In a packaging machine for applying cartons to groups of bottles or like containers wherein the containers are aligned in double row, transversely paired relation and each carton has a top wall forming panel, depending side wall forming panels terminating at hingedly connected, bottom wall forming panels which have interlocking connecting elements, and foldable end wall forming panels for partially closing the ends of the carton which end wall forming panels have hinged anchoring tabs on their lower ends adapted to be folded beneath the end containers in the carton, conveyor means for advancing successive groups of the containers each having a carton thereon with the side wall forming panels folded down along the sides of the containers, endless conveyor means mounted for travel in a generally horizontal plane with opposed runs thereof on opposite sides of a path along which the containers are adapted to advance, means associated with said endless conveyor means for engaging said wall forming panels and moving them into wall forming position, and means in the form of hooks operative in pairs beneath said path for movement toward each other in a longitudinal vertical plane and into engagement with leading and trailing anchoring tabs on each successive carton advanced along said path so as to position said anchoring tabs for interlocking engagement with certain of said bottom wall panel connecting elements which anchoring tab positioning means is mounted on a traveling conveyor for vertical swinging movement in a longitudinal vertical plane.
Claim 15
Dependent Claim
70 words
In a packaging machine as set forth in claim 11 wherein said means for positioning said anchoring tabs comprises an endless traveling conveyor means having pairs of hook forming means mounted thereon which are operative in a longitudinal vertical plane to engage said leading and trailing anchoring tabs during predetermined travel thereof and insure that said anchoring tabs are located in the proper position for engaging said panel connecting elements.
Claim 16
Dependent Claim
263 words
In a packaging machine for applying cartons to groups of bottles or like containers wherein the containers are aligned in double row, transversely paired relation and each carton has a top wall forming panel, depending side wall forming panels terminating at hingedly connected, bottom wall forming panels which have interlocking connecting elements, and foldable end wall forming panels for partially closing the ends of the carton which end wall forming panels have hinged anchoring tabs on their lower ends adapted to be folded beneath the end containers in the carton, conveyor means for advancing successive groups of the containers each having a carton thereon with the side wall forming panels folded down along the sides of the containers, endless conveyor means mounted for travel in a generally horizontal plane with opposed runs thereof on opposite sides of a path along which the containers are adapted to advance, means associated with said endless conveyor means for engaging said wall forming panels and moving them into wall forming position, and means operative beneath said path for positioning said anchoring tabs for interlocking engagement with certain of said bottom wall panel connecting elements, which means for positioning said anchoring tabs comprises an endless traveling conveyor having a run thereof traveling beneath said path, pairs of supporting members on said conveyor, hook-like finger elements pivoted on said supporting members and means for moving said finger elements to engage said anchoring tabs at the leading and trailing end of said carton bottom wall and to hold said anchoring tabs in proper position for engaging said panel connecting elements.
Claim 17
Dependent Claim
263 words
In a packaging machine for applying cartons to groups of bottles or like containers wherein the containers are aligned in double row, transversely paired relation and each carton has a top wall forming panel, depending side wall forming panels terminating at hingedly connected, bottom wall forming panels which have interlocking connecting elements, and foldable end wall forming panels for partially closing the ends of the carton which end wall forming panels have hinged anchoring tabs on their lower ends adapted to be folded beneath the end containers in the carton, conveyor means for advancing successive groups of the containers each having a carton thereon with the side wall forming panels folded down along the sides of the containers, endless conveyor means mounted for travel in a generally horizontal plane with opposed runs thereof on opposite sides of a path along which the containers are adapted to advance, means associated with said endless conveyor means for engaging said wall forming panels and moving them into wall forming position, and means operative beneath said path for positioning said anchoring tabs for interlocking engagement with certain of said bottom wall panel connecting elements, which means for positioning said anchoring tabs comprises an endless traveling conveyor having a run thereof traveling beneath said path, pairs of supporting members on said conveyor, hook-like finger elements pivoted on said supporting members and means for moving said finger elements to engage said anchoring tabs at the leading and trailing end of said carton bottom wall and to hold said anchoring tabs in proper position for engaging said panel connecting elements.
Claim 18
Dependent Claim
30 words
In a packaging machine as set forth in claim 13 wherein said supporting members for said hook-like finger elements comprises block elements having slots therein for mounting said finger elements.
Claim 19
Dependent Claim
41 words
In a packaging machine as set forth in claim 14 wherein said hook-like finger elements have cam rollers thereon and means forming a cam track is provided for co-operation with said cam rollers for controlling the movement of said finger eLements.
Claim 20
Dependent Claim
270 words
In a packaging machine for applying cartons to groups of bottles or like containers wherein the containers are aligned in double row, transversely paired relation and each carton has a top wall forming panel, depending side wall forming panels terminating at hingedly connected, bottom wall forming panels which have interlocking connecting elements, and foldable end wall forming panels for partially closing the ends of the carton which end wall forming panels have hinged anchoring tabs on their lower ends adapted to be folded beneath the end containers in the carton, conveyor means for advancing successive groups of the containers each having a carton thereon with the side wall forming panels folded down along the sides of the containers, endless conveyor means mounted for travel in a generally horizontal plane with opposed runs thereof on opposite sides of a path along which the containers are adapted to advance, means associated with said endless conveyor means for engaging said wall forming panels and moving them into wall forming position, and means operative beneath said path for positioning said anchoring tabs for interlocking engagement with certain of said bottom wall panel connecting elements, which means for positioning and anchoring tabs comprises a traveling conveyor having a run thereof beneath said path, support blocks spaced on said traveling conveyor, angle members pivotally mounted on said support blocks with a leg thereof having a hook shape, and cam means for pivoting said angle members to bring said hook-shaped leg into engagement with a pair of said anchoring tabs to hold said anchoring tabs in proper position for engagement with certain of said panel connecting elements.
Claim 21
Dependent Claim
270 words
In a packaging machine for applying cartons to groups of bottles or like containers wherein the containers are aligned in double row, transversely paired relation and each carton has a top wall forming panel, depending side wall forming panels terminating at hingedly connected, bottom wall forming panels which have interlocking connecting elements, and foldable end wall forming panels for partially closing the ends of the carton which end wall forming panels have hinged anchoring tabs on their lower ends adapted to be folded beneath the end containers in the carton, conveyor means for advancing successive groups of the containers each having a carton thereon with the side wall forming panels folded down along the sides of the containers, endless conveyor means mounted for travel in a generally horizontal plane with opposed runs thereof on opposite sides of a path along which the containers are adapted to advance, means associated with said endless conveyor means for engaging said wall forming panels and moving them into wall forming position, and means operative beneath said path for positioning said anchoring tabs for interlocking engagement with certain of said bottom wall panel connecting elements, which means for positioning and anchoring tabs comprises a traveling conveyor having a run thereof beneath said path, support blocks spaced on said traveling conveyor, angle members pivotally mounted on said support blocks with a leg thereof having a hook shape, and cam means for pivoting said angle members to bring said hook-shaped leg into engagement with a pair of said anchoring tabs to hold said anchoring tabs in proper position for engagement with certain of said panel connecting elements.
Claim 22
Dependent Claim
311 words
In a packaging machine for applying cartons to groups of bottles or like containers wherein the containers are aligned in double row, transversely paired relation and each carton has a top wall forming panel, depending side wall forming panels terminating at hingedly connected, bottom wall forming panels which have co-operating connecting elements comprising overlapping marginal portions with locking apertures in a marginal portion of one panel and co-operating locking tabs in the marginal portions of the associated bottom wall forming panel and foldable end wall forming panels for partially closing the ends of the carton which end wall forming panels have hinged anchoring tabs on their lower ends adapted to be folded beneath the end containers in the carton, conveyor means for advancing successive groups of the containers each having a carton thereon with the side wall forming panels folded down along the sides of the containers, endless conveyor means mounted for travel in a generally horizontal plane with opposed runs thereof on opposite sides of a path along which the containers are adapted to advance, means associated with said endless conveyor means for engaging said wall forming panels and moving them into wall forming position, and means operative beneath said path for positioning said anchoring tabs for interlocking engagement with certain of said bottom wall panel connecting elements, which means for positioning said anchoring tabs comprises an endless traveling conveyor with a run thereof disposed beneath said path, support blocks spaced in paired relation on said traveling conveyor, arm members pivoted on said support blocks which have hook-shaped free ends, cam means for pivoting the arm members to swing the hook-shaped ends into locking apertures in the marginal portion of a container bottom forming panel and into engagement with a pair of said anchoring tabs when said blocks traverse the run of said traveling conveyor which is beneath said path.
Claim 23
Dependent Claim
311 words
In a packaging machine for applying cartons to groups of bottles or like containers wherein the containers are aligned in double row, transversely paired relation and each carton has a top wall forming panel, depending side wall forming panels terminating at hingedly connected, bottom wall forming panels which have co-operating connecting elements comprising overlapping marginal portions with locking apertures in a marginal portion of one panel and co-operating locking tabs in the marginal portions of the associated bottom wall forming panel and foldable end wall forming panels for partially closing the ends of the carton which end wall forming panels have hinged anchoring tabs on their lower ends adapted to be folded beneath the end containers in the carton, conveyor means for advancing successive groups of the containers each having a carton thereon with the side wall forming panels folded down along the sides of the containers, endless conveyor means mounted for travel in a generally horizontal plane with opposed runs thereof on opposite sides of a path along which the containers are adapted to advance, means associated with said endless conveyor means for engaging said wall forming panels and moving them into wall forming position, and means operative beneath said path for positioning said anchoring tabs for interlocking engagement with certain of said bottom wall panel connecting elements, which means for positioning said anchoring tabs comprises an endless traveling conveyor with a run thereof disposed beneath said path, support blocks spaced in paired relation on said traveling conveyor, arm members pivoted on said support blocks which have hook-shaped free ends, cam means for pivoting the arm members to swing the hook-shaped ends into locking apertures in the marginal portion of a container bottom forming panel and into engagement with a pair of said anchoring tabs when said blocks traverse the run of said traveling conveyor which is beneath said path.
Claim 24
Dependent Claim
241 words
In a packaging machine for enclosing groups of bottles which are arranged in double row and transversely paired alignment by wrapping about each group a blank of foldable sheet material, the blank being initially deposited on a group of bottles with a top wall forming panel on the top of the bottles anD having side and bottom wall forming panels depending along the sides of the group of bottles which include end wall forming panels adapted to hinge on the vertical end edges of the side wall forming panels, said end wall panels having bottom extensions adapted to be folded beneath the end bottles and hooked to bottle separating members which are hinged into upstanding relation from the bottom wall forming panels upon closing of the bottom wall forming panels, apparatus for advancing along a work path successive groups of bottles with a wrapper blank deposited on each group thereof, apparatus disposed along said work path and including pairs of co-operating, spaced folder members movable into said path for folding into bottle engaging position the end wall forming panels and associated bottom extensions together with means for folding the bottom wall forming panels into bottom closing position, and other apparatus disposed beneath said path and movable in a longitudinal plane upwardly in paired relation so as to engage and position the bottom extensions on said end wall forming panels of each successive blank for hooked engagement with said bottle separating members.
Claim 25
Dependent Claim
241 words
In a packaging machine for enclosing groups of bottles which are arranged in double row and transversely paired alignment by wrapping about each group a blank of foldable sheet material, the blank being initially deposited on a group of bottles with a top wall forming panel on the top of the bottles anD having side and bottom wall forming panels depending along the sides of the group of bottles which include end wall forming panels adapted to hinge on the vertical end edges of the side wall forming panels, said end wall panels having bottom extensions adapted to be folded beneath the end bottles and hooked to bottle separating members which are hinged into upstanding relation from the bottom wall forming panels upon closing of the bottom wall forming panels, apparatus for advancing along a work path successive groups of bottles with a wrapper blank deposited on each group thereof, apparatus disposed along said work path and including pairs of co-operating, spaced folder members movable into said path for folding into bottle engaging position the end wall forming panels and associated bottom extensions together with means for folding the bottom wall forming panels into bottom closing position, and other apparatus disposed beneath said path and movable in a longitudinal plane upwardly in paired relation so as to engage and position the bottom extensions on said end wall forming panels of each successive blank for hooked engagement with said bottle separating members.
Claim 26
Dependent Claim
83 words
In a packaging machine as set forth in claim 18 wherein said apparatus for engaging said positioning said bottom extensions on said end wall forming panels comprises an endless conveyor disposed for travel beneath the path of advance of said groups of bottles and carrying thereon pairs of longitudinally spaced finger members with means for moving the finger members upwardly into the path of advance of said groups of bottles and into engagement with said bottom extensions on said end wall forming panels.
Claim 27
Dependent Claim
283 words
In a packaging machine for enclosing groups of bottles which are arranged in double row and transversely paired alignment by wrapping about each group a blank of foldable sheet material, the blank being initially deposited on a group of bottles with a top wall forming panel on the top of the bottles and having side and bottom wall forming panels depending along the sides of the group of bottles which include end wall forming panels adapted to hinge on the vertical end edges of the side wall forming panels, said end wall panels having bottom extensions adapted to be folded beneath the end bottles and hooked to bottle separating members which are hinged into upstanding relation from the bottom wall forming panels upon closing of the bottom wall forming panels, apparatus for advancing the group of bottles along a work path, apparatus for folding into bottle engaging position the end wall forming panels and associated bottom extensions together with the bottom wall forming panels, and apparatus for engaging and positioning the bottom extensions on said end wall forming panels for hooked engagement with said bottle separating members, which apparatus for engaging and positioning said bottom extensions on said end wall forming panels comprises an endless traveling conveyor arranged in a generally vertical plane with a run thereof traveling beneath the path of advance of said group of bottles and having thereon spaced carrier blocks in paired arrangement with fingers pivoted thereon which have hook-shaped ends, and cam means for swinging the fingers of each pair thereof toward each other as they traverse the conveyor run beneath the bottles and into engagement with pairs of said bottom extensions on the end wall forming panels.
Claim 28
Dependent Claim
283 words
In a packaging machine for enclosing groups of bottles which are arranged in double row and transversely paired alignment by wrapping about each group a blank of foldable sheet material, the blank being initially deposited on a group of bottles with a top wall forming panel on the top of the bottles and having side and bottom wall forming panels depending along the sides of the group of bottles which include end wall forming panels adapted to hinge on the vertical end edges of the side wall forming panels, said end wall panels having bottom extensions adapted to be folded beneath the end bottles and hooked to bottle separating members which are hinged into upstanding relation from the bottom wall forming panels upon closing of the bottom wall forming panels, apparatus for advancing the group of bottles along a work path, apparatus for folding into bottle engaging position the end wall forming panels and associated bottom extensions together with the bottom wall forming panels, and apparatus for engaging and positioning the bottom extensions on said end wall forming panels for hooked engagement with said bottle separating members, which apparatus for engaging and positioning said bottom extensions on said end wall forming panels comprises an endless traveling conveyor arranged in a generally vertical plane with a run thereof traveling beneath the path of advance of said group of bottles and having thereon spaced carrier blocks in paired arrangement with fingers pivoted thereon which have hook-shaped ends, and cam means for swinging the fingers of each pair thereof toward each other as they traverse the conveyor run beneath the bottles and into engagement with pairs of said bottom extensions on the end wall forming panels.