US1961949A - Making of box ends and like constructions - Google Patents

Description

June 5, 1934. H. J. TAPLIN MAKING OF BOX ENDS AND LIKE CON STRUCTIONS Filed May 12, 1933 2 Sheets-Sheet l June 5, 1934.

H. .1. TAPLIN 1,961,949

MAKING OF BOX ENDS AND LIKE CONSTRUCTIONS Filed May 12, 1933 2 Sheets-Sheet 2 Patented June 5, 1934 PATENT OFFICE MAKING OF BOX ENDS AND LIKE CONSTRUCTIONS Harold John Taplin, London, England, assignor to Gerrand Industries Limited, London, England, a British company Application May 12, 1933, Serial No. 670,709 In Great Britain June 2, 1932 11 Claims.

This invention relates to machines for making box ends and like constructions such as that de scribed in British specification No. 296,384 which is .mentioned purely by way of example In the machine described in that specification a box end is made by moving on a carrier a group of and all the members swing clear to allow the passage of the completed box end. A spring or transversely arranged boards or battensfhaving their ends in alignment, and presenting a pair of cleats or binders in the path of the advancing ends. Means are described for holding the cleats against movement until the ends of the battens are united therewith, for example, by means of dovetailed tongue and groove connections, and thereupon releasing the cleats so that they again then move forward with the battens on the carrier.

The present invention has for its object to prowide improved means for holding and releasing cleats or binders in machines having continuously fed boards or any other appropriate members required to be united thereto, hereinafter referred to respectively as cleats and battens.

In the improved mechanism which constitutes the present invention a number of pivoted mem bers are arranged with their ends on the path of the advancing battens and cleats, and those members which engage with and hold the ends of the cleats are held locked in position until the battens engage with the other members, whereupon the cleat-holding members are unlocked weight controlis provided to return the mechanism to its original position prior to the arrival of another set of battens and cleats.

In a preferred form of the mechanism accord ing tothe present invention, provision is made to push two cleatsor binders (one on each side of a set of battens) simultaneously into position. For this purpose two separate but identical pieces of mechanism are employed, one on each side of the machine, although only one is described.

From one aspect the invention comprises a toggle device the links of which, when in alignment, lock the cleat-engaging members against movement. These latter are unlocked by the movement of the batten-engaging members, which move under the pressure of the battens, and throw the toggle links out of alignment.

The mechanism comprises a pivoted member, one end of which holds the advancing cleat, and is locked against movement by means of a strut and one arm of a bell crank lever which have a pivotal connection and which form a toggle-like mechanism. A second pivoted member, one end of which engages the advancing'battens is con nected to the other arm of the bell crank by means of a link. ,The arrangement is such that, under Very slight pressure from the batten, the bell crank lever is rocked and thus unlocks the toggle-like members, causing the cleat-holding member to swing clear and let the cleat pass. The second pivoted member also swings clear of the battens. A helical spring is provided to return the members back to the locked position. The second pivoted member has a bolt or set screw in the end engaging with the battens so that the instant of contact can be arranged to occur when the cleat is in the correct position relative to the battens.

A set screw is also provided to adjust the toggle-like mechanism.

Referring to the accompanying drawings which illustrate a preferred form of the cleat pushing mechanism in accordance with the present. invention:-

Figure 1 shows a sketch illustrating application of the device to a machine for making box fiends and the like.

Figure 2 shows a side elevation of the mechanism.

Figure 3 is an end elevation from the left hand end of Figure 2.

Figure 4 is a plan view.

Referring to Figure 2, a member 6 pivoted at S 7 to the frame of the machine, has its lower end 8jdisposed to hold the cleat. The member 6 is locked in the vertical position shown by means of a strut l which has a forked end pivoted to the member 6 by the pivot 9. The other end of the strut l is pivoted toan arm 2 of a bell crank lever by means of a pivot 10, the end of the strut being placed inside the forked end of of the arm 2.

The bell crank lever is pivoted to the frame 9 of the machine by a pivot 11, and has an arm 5 to which is attached one end ofa helical spring 18, the other end of which is fixed to the frame .of the machine. A second pivoted member 3 on a fixed pivot 13 on the bracket 20, has at its lower end a bolt 4 by means of which the contact with the battens can be adjusted, as mentioned above. A link 16, pivoted at 14 to the upper end of the member 3 and at 12 to the arm 5 of the bell crank, connects the member 3 with this latter.

Referring to Figure 1, the lower portions of the members 6, 3 are shown in their positions relative to the machine. A group of battens A of equal lengths with their ends aligned and grooved as at B are carried forward by conveyor bands or the like E and also firmly held thereon by means not shown.

Figure 1 shows the relative positions of the various members at the moment when the cleats D just engage the ends 8 of the members 6. They are then only partially engaged with the set of battens and are being carried by these latter in the direction of the arrow. The members 6 now stop the movement of the cleats D and so force them to slide relatively to the battens A, tongues or tenons F on the cleats sliding in the grooves B.

When the cleats D have been slid into their correct positions, the front edge of the foremost batten A engages the bolts 4, and so moves the members 3 which causes the bell crank lever to rock in a clockwise direction, as viewed in Fig-- ure 2, by means of the link 16. This rocking of the bell crank lever moves the joint of the toggle-like mechanism and the strut 1 and the arm 2 of the bell crank lever are thrown out of alignment, the members 6 are now unlocked and can be swung clear by the further advance of the cleats which are now held fairly firmly by reason of the engagement of the tongues F with the grooves B. The passage of the cleats is also assisted by the simultaneous advance of the batten on the consequent further movement of the members 3 which results in a still further movement of the member 6. The spring 18 returns the members to the original position, when the box-end has passed.

A threaded bolt or set screw 17 adjustable in a fixed socket is provided to set the position of the bell crank lever since it is generally desirable that the joint between the strut 1 and the arm 2 should move only into the plane of alignment of the said members and not substantially through the plane as is the case in ordinary toggle mechanism.

It will be realized that the parts as described may be made of very light material as they are in no sense gravity-controlled so that there is no lag between the engagement of the releasing bolt by the battens and .the unlocking of the strut which holds the cleat pusher rigid. By the fine adjustment of the bolt 4 and the set screw 1"], the mechanism can be caused to function so exactly that the cleat is only released when it is flush with the leading edge of the front batten so that no further handling is necessary.

The invention is not limited to the particular construction described, for example, either or both abutments may have a sliding as opposed to an arcuate movement, when instead of a toggle--like articulated joint, abutting members may be utilized having their engaging faces so shaped, for example, arcuate or wedge-shaped, that when dead in line they resist endwise movement, but on the slightest rotational movement of one of the members the other member slides over its end.

I claim:

1. In a machine for assembling continuously fed battens or the like with cleats at their edges, the combination of batten feeding means, toggle mechanism holding the cleats from movement, and means lying at a predetermined position in the path of the battens and operated by said battens to break the toggle to enable the assembly of cleats and battens to progress as a unit.

2. In a machine for assembling continuously fed battens or the like with cleats at their edges, the combination of batten feeding means, pivotally mounted abutments holding the cleats, and

pivotally mounted contact means in the path of the battens, means normally preventing movement of the said abutments, and linkage connecting said last mentioned means to said contact means, the arrangement being such that the movement of the contact means when struck by the battens releases the said abutments to swing clear of the cleats.

3. In a machine for assembling continuously fed battens or the like with cleats at their edges, the combination of batten feeding means, cleat holding abutments, retaining means holding said abutments in position, operating means lying at a predetermined point in the path of the said battens, and mechanism actuated by said operating means upon engagement therewith of the said battens to release the retaining means and enable the assembly of cleats and battens to progress as a unit together with spring means to restore the parts to their initial positions when said assembly has moved clear.

4. In a machine for assembling continuously fed battens or the like with cleats at theiredges, the combination of a pivoted cleat holding member, a pivoted lever, a link connecting said member with said lever and forming a toggle joint with an arm of said lever, a pivoted contact member in the path of the battens and connected with a second arm of said lever to rock the said lever and break the said toggle joint.

5. In a machine for assembling continuously fed battens or the like with cleats at their edges, the combination of a pivoted cleat holding member, a pivoted lever, a link connecting said memher with said lever and forming a toggle joint with an arm of said lever, a pivoted contact member in the path of the battens and connected with a second arm of said lever to rock the said lever and break the said toggle joint, and spring return means to reestablish said toggle joint and restore said contact member to its initial position.

6. In a machine for assembling continuously fed battens or the like with cleats at their edges, the combination of a pivoted cleat holding member, a pivoted lever, a link connecting said member with said lever and forming a toggle joint with an arm of said lever, a pivoted contact member in the path of the battens and connected with a second arm of said lever to rock the said lever and break the said toggle joint and a contact piece adjustable on said pivoted contact member.

'7. In a machine for assembling continuously fed battens or the like with cleats at their edges, the combination of batten feeding means, cleat holding abutments, retaining means holding said abutments in position, operating means lying at a predetermined point in the path of said battens, and mechanism actuated by said operating means upon engagement therewith of the said battens to release the retaining means and enable the assembly of cleats and battens to progress as a unit, together with means to adjust the position of said point in the path of the battens relatively to that of said abutments.

8. In a machine for assembling continuously fed battens or the like with cleats at their edges, the combination of a pivoted cleat holding member, a pivoted lever, a link connecting said member with said lever and forming a toggle joint with an arm of said lever, a pivoted contact member in the path of the battens and connected with a second arm of said lever to rock the said lever and break the said toggle joint and an adjustable stop aligning said toggle joint.

9. In a machine for assembling continuously fed battens or the like with cleats at their edges, the combination of cleat stops, cleat stop holding means and batten-operated abutments means operatively connected with said holding means to render said holding means ineffective when the battens reach a predetermined position.

10. In a machine for assembling a cleat and batten unit the combination comprising means for rigidly holding a cleat against longitudinal movement, means for moving a batten unit longitudinally past the cleat to interlock them, and means connected to said holding means and operated by the batten unit when completely inter- CERTIFICATE OF CORRECTION.

Patent No. 1,961,949.

HAROLD JOHN TAPLlN,

It is hereby certified that the name of the assignee in the aboye numbgrgd patent was erroneously described and specified as "Gerrand Industries Limited, whereas said name should have been described and specified as Gerrard Indus t ries Limited, as shown by the records of assignments in this office; that, 4 the said Letters Patent should be read with this correction therein that the same": may conform to the record of the case in the Patent Office. I

Signed and sealed this 7th day of August, A. D. 1934.

Leslie Frazier (Seal) Acting Commissioner of Pat ents,

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