US1299640A - Box-holding clamp. - Google Patents

Description

A. N. WElDENBACHi BOXHOLDING CLAMP.

APPLICATION FILED JUNE I, 1918.

Patented Apr. 8, 1919. 2 SHEETS-SHEET! A. N. WEIDENBACH.

BOX HOLDING CLAMP.

APPLICATION FILED JUNE 1. 19m

1 ,299,64(). Patented Apr. 8,1919.

2 SHEETSSHEET 2.

Weidenbach I rm ANDREW N.WEIDE1 TIBACH, OF MITCHELL, SOUTH DAKOTA.

BOX-HOLDING CLAMP.

tain new and useful Improvements in Box- Holding Clamps, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to work holdersand particularly to certain improvements in that class of work holding machines in which aform is provided for supporting and clamping the side boards and bottom boards of egg cases and like crates while they are being nailed.

The general object, of this invention is to provide a work holding support adapted to be raised by means of a pedal and to be rotated to a plurality of positions and to provide means whereby the work holding support may be held in its rotated positions so that when the support and work are lowered onto a table, the work will come down flat on the table and thereby prevent the material being knocked out of place when the support is lowered onto the table.

Other objects have to do with improvements in the details of construction and arrangement of the several parts as will hereafter appear. 7 v V My invention is illustrated in the accompanving drawings, wherein v Figure 1 is a perspectiveview of a box forming machine containing my improvements;

Fig. 2 is a fragmentary longitudinal sectional view through the machine;

Fig. 3 is a section. on the line 3 -3 of FiL'. 2;

Fig. 4 is an end elevation showing the box support rotated to permit the nailing on of the sides of the box;

Fig. 5 is a section .on the line 55 of Fig. 2;

Fig. 6 is a section on the 1ine 6-6 of v Fig. 2; and

Fig. 7 is a perspective detail view of one of the lifting rods and the trunnion of the box support. ,7

Referring to these drawings, it will be seen that the supporting frame or table of the machine comprises the longitudinal beams 10, the vertical legs 11. the transverse boards 12,- and the; braces 13 and 14, the

Specification of Letters Patent.

last named braces extending betwen each pair of legs. One pair of legs is connected by a longitudinal brace15 upon which a treadle 16 is hinged. Pivotally supported from ears 17, attached in any suitable. manner to the frame of the machine, are the levers 18, these levers at their adjacent ends being provided with a plurality of perforations 19 and being connected by links 20 to the treadle 16. The end pieces of the box which is to be formed are supported upon a holder comprising a longitudinally extending base 21. To one end of this base is affixed the end piece 22, while to the othe end of the base is aflixed the end piece 23, this end piece being cut away at its top, as at 24:. Extending downward through slots in the end boards 12 are the liftin rods 25 which also extend down through s ots in the cross pieces 13. These lifting rods are connected by a longitudinal bar 26 so that they will move in unison and are braced by angle irons 27. Links, preferably inthe form of hooks 28, engage the ends of the bar 26 with the outer ends of the levers 18. It will thus be seen that when the treadle is depressed, the lifting rods 25 will move upward.

The lifting rods or standards 25 are connected to the box support by means of trunnions 29 which extend out from the end pieces 22 and 23 and pass through openings in the lifting rods. These trunnions have a cross bar 30 at their extremities. and mounted upon each lifting rod is an outwardly extending, resilient strip 31, formed at its upper end with cross depressions 32, in'which the T-shaped head 30 or cross bar of the trunnion is adapted to en age. This strip 31-is somewhat resilient and the resilience of the strip urges its upper end outward so that the T-shaped head 30 of each trunnion is held securelv in its adiusted position and against accidental rotation. The outer face of each of the membersv22 and 23 is braced by a cross cleat 33 supported in position by irons 34 having outwardly turned upper extremities disposed beneath the corresponding cleat.

, The member 23 constitutes a head for one end of the box body and for supporting the opposite end of the box. I provide a head 35 which is preferablv adiustable toward or from the head 23. To this end. the head 35 is provided with angle irons 36, which-are slotted and bolts 37 pass through these angle Patented Apr. 8, 1919.

Application filed June 1, 1918. Serial No. 237,774.

irons and into the base 21. By this means, the head 35 may be shifted toward or from the head 23 to accommodate boxes of longer or shorter length. For the purpose of'supporting the middle partition of the egg crate or box, I provide the head 38 which -also is supported by angle irons 39, these angle irons being slotted and engaged with the base by means of bolts 40 so that the middle partition may also be adjusted to suit longer 38 coacts-wit-h aiclamping plateslt which is also outwardly deflected at its upper end' and is connected by a hinge 45 to a supporting member :46 which at its lower end is connected to a spring hinge 47." Preferably the outer edge faces of the heads 23 and 35 have attached to them the metallic strips 48, which extend down slightly below-the upper "face-of-tlie base 21, so as to guide the adjustable heads, and preferably the base, 21 is cut away on each side as at 49 to permit the partition board of the box to be properly adjusted. It is for this reason that the heads 23 and 35 are-also cut away as at 24 to permit the ready insertion and removal'of the end boards of the box or crate. 'Preferably the upper faces of the boards 12 at a plurality of points'are provided with metal reinforcingor wear strips 50-,the under 'faceof the base21 being also provided with like wear strips 50 to rest upon the first named strips when the box support is lowered.

Inthe practical operation of this device, the ends A ofthe crate are inserted between the clamps 4'1 and the heads 23 and 35, while apartition board B is inserted between the clamp 44 and the head 38. the crate may now be readily nailed upon the end boards and middle board of the crate and then the supporting frame is raised by depressing the pedal 16 and the box support isrotated a quarter of a revolution, and'again lowered, whereupon one of the side boards may be-nailed in'place. The box support may be again raised and rotated to-bring the other side vuppermostand the opposite side of the crate may then be attached. The completed crate can then be readily removed by simply lifting it off of the support and the device is ready to rece ve the boards of another crate.

By means of this invention, the box ele- Copies ofthis patent may lie-obtained .for.

The bottom of ments may be readily held in position while being nailed and the work of assembling the parts of the crate and nailing them together is very greatly "expedited and the accuracy of workmanship increased.

The T-shaped heads 30 coact with the springs 31 to lock the movable form in its adjusted positions so that the form will come down flat on the table and not hit on the corner first and thereby knock the material out of place when-the 'form'is lows.

ered onto the table. 1

Having described my invention, what I,

claim is:

1. A machine of the character described comprising a table, standards mounted upon the table for vertical movement, a box sup-- porting frame mounted uponthe standards and having trunnions extending through-the standards whereby the supporting frame may be :rotated in a plurality of positions with .rel-ationto the table, the standards .be-

ing mounted for erticail imirwez'nent where-- by the box supported in's'aid frame maybe rested on the table in any one of the positions to which the supporting frame may be rotated, and means mounted n the standards for yieldingly "holding the box supporting frame in a plurality of rotated positions such =that-the box supporting frame will rest fiatuponthetable when the standards are lowered. v

2. A machine of the character described comprising a table, standards mounted upon the table for vertical move ment, a box supporting frame mounted upon the standards and having trunnions extending through the. standards, whereby the supporting frame may; be rotated into a plurality of positions with relation to-the table, and resiliently yieldable meansifor locking the trunnions in a plurality "of'rotated positions.

3. A machine of the character described slidably comprisingatable, standards verticallyslid- In testimony whereof I hereuntov afli x my signature in the presenceof two witnesses.

ANDREW N. 'VVE'I'DENBAG'H. Witnesses:

L. S. VIGKERs, M. N. GAINES.

ve cents each, by addressing the Commissioner of'iatents,

Washington, D. G."

Images