US714386A - Bag-machine. - Google Patents

Description

UNITED STATES ATENT einen..

JESSE V. MATTESON, OF SAN FRANCISCO, CALIFORNIA.

BAG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 714,386, dated November 25, 1902.

` Application filed January 13, 1902. Serial No. 89,625. (No model.)

To @ZZ whom, it may concern:

Be it known that I, J Essn V. MArrnsoN, a citizen of the United States, residing at San Francisco, in the county of`San Francisco and State of California, have invented certain new and useful Improvements in Bag-- Machines; and I do hereby declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it appertains to make and use the same.

My present invention, generally speaking, is an improvement in bag-machines; but to be more specific it is a device for automat-` ically reinforcing the bottoms of paper bags during the usual process of gumming and folding.

The device possesses all the requisites of strength land durability and is especially simplein construction and eflcient in opera tion.

To answer the requirements of special lines of trade, it is imperative that a bagl of great strength and durability be made, and this is usually accomplished by taking the paper `after it leaves the machine in short tubular bottornless sections and inserting by hand a rectangular piece of stiff cardboard and folding and gumming about this piece the flaps of the bag. These hand manipulations of the bag necessarily add greatly to the cost of manufacture or production,and consequently direct attention to seeking cheaper but correspondingly less secure closures.

I have so constructed my invention as to render it capable of being readily attached to and employed in conjunction with the bagmachines now in general use.

I am enabled to accomplish the above results by the means illustrated in the accompanying drawings, in which-- Figure lis a perspective view of the device, showing its position relative to certain portions of an ordinary bag-machine. Fig. 2 is a section of the rollers of the machine, showing the manner of feeding the cardboard strips as the bag is being folded. Fig. 3 is a View of the bottom of the finished bag, showing the position of the cardboard piece. Fig.

4 is a view of the bag as it is fed to the first pair of rollers, the relative position of the cardboard strip being shown. Fig. 5 is a similar view of the bagas it enters the second pair of rollers. Fig. 6 is a side view ofthe bag after passing the second pair of rollers.

Referring now to the above views by letter, A represents an oscillating shaft of `the machine, on which is keyed the twin arms B, the

of cardboard under the flaps of the bottom of' the bag F for the purpose above set forthIarrange a vertical gravity-feeder Gr directly in the path of the bed C. This feeder Gis capable of holding a large number of pieces D and is made adjustable by means of the thumbscrews H to hold pieces of various sizes. On the upper surface of this bed C, I arrange spring catches or lugs I,which as thebed passes under the pieces D spring up and against the back edge of the lower cardboard D. Now as the bed again moves forward these lugs carry this bottom piece D until the rollers E E grip it and carry it through, with the nose of the bag overlappingit. The relative positions of the bag and cardboard both before and after passing through the rollers E E are shown in solid and dotted lines, respectively, in Fig. 2. The bag and piece D are now passed together through a secondary pair of i rollers E E" after being creased by a second blade C and the remaining flap turned over in the usual manner. Of course the two flaps are gummed to adhere to the strip, while those portions not gummed are permitted to return to their relative positions. (Shown in Fig. 6.)

In order to prevent the cardboard piece D from leaving the bed C as the latter approaches the twin rollers E E', I have provided the guide J, which is secured to the feeder G.

Having thus fully described my invention,

the objects and advantages of the same will, it is thought, be readily understood.

I am aware that changes in the form and proportion of parts of the devices herein shown and described as an embodiment of IDO my invention can be made without departing from the spirit or sacrificing the advantages thereof, and I therefore reserve the right to make such changes and alterations as fairly fall within the scope of myinvention.

What I claim, and desire to secure by Letters Patent, is-

l. A device of the class described provided with a bed or blade adapted to force the bag between folding-rollers, and means for automatically feeding reinforcing-pieces to said bed and said bag, for the purpose set forth.

2. A device of the class described provided with a bed or blade adapted to force the bag between folding-rollers, and means for automatically feeding reinforcing-pieces to said bed, said bed being adapted to carry said pieces to said folding-rollers for the purpose set forth.

3. A device of the class described provided zo pieces to said bag, for the purpose set forth. 25

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

JESSE V. MATTESON.

Witnesses:

GEORGE PATTIsoN, EDWARD S. POWERS.

Images