US1545163A - Automatically-controlled paper cutter - Google Patents

Description

July 7, 1925. 1,545,163

' G. J. NETH AUTOMATICALLY CONTROLLED PAPER CUTTER Filed Nov. 27. 1922 INVENTOR A roze/v5 y My invention, on the other hand, obviates Dayton,

Patented July 7, 1925.

cnonen J. warn; or DAYTON, OHIO.

AUToMArIcALLY-oonrRoLLEn PAPER CUTTER.

Application fi1ed November 27, 1922. Serial N'o. 603,473.

To all whom itmay concern:

- c it known that I, GEORGE J. NETH, a citizen ofthe United 'States,-resi cling at in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Automatically- Controlled Paper Cutters, of which the following is a specification.

This invention relates to automaticallycontrolled paper-cutters, and has particular reference to the improvements which I have made'in the automatically-controlled papercutter illustrated and described in my United States Letters Patent No. 1,094,374 granted April 21, 1914. j j I It is one of the principal objects of the present invention to enable the operator to readily and firmly grip the paper for the purpose of drawing it to the desired position forcu'tting. After a sheet of paper has been cut froma roll, it is diflicult to pull out another length of it for the reason that its free edge does notproject a suflicient distance beyond the edge of the cutter bar to enable it to befirmly gripped by the-fingers.

the above ditficulty by the provision of means for moving the cutter bar rearwardly a suf ficient distance to firmly gripped and pulled outwardly the e-X- tent necessary to enable strip of the clesired length to be cut from the roll after the cutter bar drops toits normal'position.

It is another object of the present invention to provide means to prevent the paper from buckling or crumbling when the cutter bar is moved rearwardly to permit the free end of the paper to be firmly gripped.

In the accompanying drawings, Figure 1 is aside elevational view of my automatically-controlled paper-cutter containing the improvements to be hereinafter described. Figure 2 is a front elevational view of one side of the same. Figure 3 is a longitudinal sectional view taken on the line 3-3 of Figure 2, showing the cutting bar and the paper-tensioning roller in their normal positions. And Figure 4 is a partial sectional view taken on the same line of Figure 2, showing the cutting bar and the tensioning roller in their raised positions.

Throughout the specification and drawings similar reference characters denote corresponding parts.

permit thepaper to be Referrin to the accompanying drawings, the numera S1 designates a base upon each end of which there is mounted a standard 2 which supports one end of a top rail or hand rest 3. Suitably secured between the standards 2, 2 is aspindle or rod 4 upon which there is mounted a roll 5 of paper that is preferably for wrapping purposes.

Pivotally supported from each standard 2 is an automatic The freeend 11 of the paper from the r0115 passes over an idle roller 12, the ends of which are journaled in the side arms 8; and thence-down and under a rod against which it is maintained by atension-bar 14 fast on a shaft 15 which is also journaled in the side arms 8. One end of the shaft 15 projects some distance beyond one of said slde arms to receive a short arm 16 carrying a weight 17 by means of which said tension bar is automatically operated. This ten sion-bar 14 looks the paper between itaand paper is pulled outward.--

the rod 13 until the ly by the operator, whereupon said weight, being of the proper heft, will permit the tension-bar to move suflicientlyto permit Said paper after pass. rod 13 and tension-bar 14,

the paper to pass it. ing between the as just described, extends downwardly, passing through a longitudinal slot 18 in a cutting bar 19, terminating just a short distance beyond it, as shown in Figures 3 and 4.

Projecting from the ends of the cutting bar 19, which is preferably constructed of a good grade of steel, are guiding pins 20 which are freely slidable in the slots 10 of the side arms 8. The cutter bar 19 is turned or bent to project rearwardly from its slot 18, in the direction of theslots 10, and is then bent downwardly at right angles to the latter to providea plate portion 21 for a purpose to be hereinafter described. The cutter bar 19 is secured at each end to the upper end of a a hinge 22 formed at its lower end with a sleeve 23 through which passes a shaft or rod 24 journaled in the side arms 8. These hinges 22 pivotally supbrake-bar 6 which con=- stantly engages the roll 5 to assist in controlling the revolution of said roll and hold' is. thus possible the paper port the cutter bar 19 for an up and down movement. 7

After a strip of paper has been severed from the roll 5 along the cutting edge of the bar 19 as shown in Figure 3, and it is desired to grip the paper topull out another length of it, the pressure of the fingers should be exerted against the plate portion 21 of the cutter bar 19 to raise it to the position shown in Figure 4. When the cutter bar has been moved to this position, it will leave exposed a sufiicient length of the free end 11 of the paper to be readily grasped by the fingers and drawn outwardly the desired distance for being cut by the bar 19 which will drop downwardlyto its normal position when the paper is drawn outwardly. It with my improved means to readily grasp the free end of the paper and pull it outwardly the desired distance each time the paper is to be out. i

For the purpose of preventing the paper from buckling when the cutter baris pushed inwardly by its plate portion 21, the following means are provided. Pivotally secured to each end of the-idle roller 12, be tween the side arms 8, is an arm 25 which is arched at its rear end to rest upon the rod 13 when in its lowermost position. These arms 25, which project forwardly and then upwardly from their arched portions, have journaled. between their upturned ends a tension roller 26 beneath and in engagement with which the paper passes. Now, when the cutter bar is moved rearward- 1y by the pressure exerted against its plate portion 21, the tension roller 26 will prevent from bulging outwardly between thecutter bar and the rod 13. As the cutter bar moves inwardly, its upper end 27 will engage the arms 25 in time to raise them and the tension roller 26 which theycarry,

' a suflicient distance to permitthe cutter bar to move under the roller. By the time the cutter bar starts to engage the arms 25, it will have moved over the paper a sufficient distance to prevent-it from buckling. Then,

standards provided with side arms,

'sioning means, arms pivotal arms,

cient distance of construction and arrangement herein shown and described, and any changes or modifications may be made therein within the scope of the subjoined claims.

Having described my invention, .1 claim:

1. Ina paper cutter, the combination wit];

0 paper-tensioning means secured between the side arms, a cutter bar movable between said side arms toward and away from the tensioning means, arms pivotally secured to the interior portions of the side arms, and a rod secured between the pivotal arms over the paper between the tensio'ning means and the cutter bar, to prevent the paper from buckling when the cutter bar is moved rearwardly. 1 a 1 2. In a paper cutter, the combination with standards provided with side arms, of paperarms, a cutter bar movable between said side arms toward and away from the ten? piv'otally secured at their rear ends to the interior portions of the side arms and having upturned front ends, a rod secured between the front ends of the pivotal arms over the paper between the tensioning means and the cutter hat, to prevent the paper from buckling when the cutter bar is moved rearwardly, and an upwardly projecting part on the cutterbar adapted to engage theuupturned ends of the in time to raise theme suflito permit the cutter bar to move beneath the rod'whieh they carry.

In testimony whereof 'I havehereunto set my hand this 25th day of November, 1922.

Witness HOWARD S. SMITH.

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