US750814A - Carton-machine - Google Patents

Description

No. 750,814. PATENTED FEB. 2, 1904. G. A. GOOMBS.

CARTON MACHINE. APPLICATION FILED APR. 21, 1903.

no MODEL.

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6 F l B S WITNESSES I INVENTOR Aliwney UNITED STATES Patented February 2, 1904.

PATENT OFFICE.

CARTON-MACHINE.

SPECIFICATION forming part of Letters Patent No. 750,814, dated February 2, 1904.

Ap li ation fil d April 21, 1903. Serial No. 153,669. (No model.)

To all whom it may concern:

Be it known that I, CHARLES A. Cooanss, a citizen of the United States, residing at Natick, in the county of Middlcsex and State of Massachusetts, have invented certain new and useful Improvements in Carton-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machines for cutting cartons from sheets of cardboard; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure 1 is a side view of the dies. Fig. 2 is a plan View of one die. Fig. 3 is a plan view of the other die. Fig. 4 is a plan view of one of the cartons. Fig. 5 is a side view of the carton.

A and B are two opposed supports or plates which support the cutting and creasing devices or dies. One of these plates is held stationary and the other plate is slidable on guides b.

C represents rods or other approved devices for sliding the movable plate toward or away from the stationary plate.

D is the carton as it comes from the machine. This carton is rectangular, and it has a crease (Z extending parallel with one side of it and a crease 0 extending at a right angle to the crease (Z and parallel to another side of the carton. Portions of two corners of the sheet on one side thereof are cut away, so as to form curved tongues f, and 5 represents angle-shaped slots punched in the sheet between the two tongues f. The tongues f are arranged at the end portions of the crease (Z.

The complete blank for the cardboard box is formed in two operations of the machine. The carton, as shown, is formed at the first operation, and it is then turned around and operated on again, so as to form two more tongues, slots, and creases. The sides of the box are then bent upward on the creases and the tongues are forced into engagement with the slots, so that the sides are secured in position and one-half of a box is thereby formed.

One die is furnished with two creasing-bars h and j, arranged at a right angle, two curved outside cutters i to form the tongues f, and two beveled angle-shaped punches k to form the slots g. The other die is furnished with two creasing-grooves it and j to engage with the bars lb and 7', two curved inside cutters z" to engage with the cutters i, and two angleshaped die-slots 0 to engage with the punches In. Each carton is stamped out by a single stroke of the machine.

The parts of the machine which are not shown may be of any approved construction, such as used in machines for stamping out leather blanks in the shoe-manufacturing business.

Prior to this invention cartons have been cut and creased at a single operation by means of cutting and creasing devices carried by rollers and by flat plates. Cartons made in this manner were, however, not satisfactory, as the creases were too shallow and were too imperfectly formed, and there was a demand for better work. In attempting to cut and crease a complete carton at a single operation the cutting-knives hold the blank so that the creasing devices cannot gather sufficient stock to make good and satisfactory creases, and even in forming small and shallow creases the stock frequently cracked and split along the creases unless it was of very superior quality.

The usual way of making cartons at the present time is, first, to cut the lock-corners in a die-press which cuts two corners at once and requires two operations for each blank, and then to make each crease separately in a creasingmachine,.so that four more operations are required, making six separate operations altogether to produce a single complete and perfect carton. According to the present invention a complete and perfect carton is formed in two operations only, and much labor and expense are saved.

WV hat I claim is 1. In a carton-machine, the combination, with two opposed supporting plates, said plates being provided with two pairs of creasing devices'arranged at a right angle with each other, two pairs of tongue-cutting dies,

and two pairs of punches for cutting slots, the said parts being functioned to form one-half only of a complete carton; of means for reciprocating one of the said plates together with the devices carried by it.

2. In a carton-machine, the combination, with two opposed supports, said supports being provided with two pairs of creasing devices arranged at a right angle with each other, two pairs of tongue-cutting dies arranged one pair at each end portion of one pair of the said creasing devices, and two pairs of punches for cutting slots arranged between the said pairs of tongue-cutting dies, the other said pair of creasing devices being 5 connected with the first said pair at a point between the said dies and punches at one end portion of it; of means for reciprocating one of the said supports.

In testimony whereof I affix my signature in 20 presence of two witnesses.

CHARLES A. COOMBS.

l/Vitnesses:

ALICE J. MURRAY, FRED. K. DAGGETT.

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