Application filed August 15. 1910.

 

To all whom it may concern.:

 

Be it known that I, OZIAS PAQUIN, a citizen of the United States of America, residing in the city of St. Louis and State of Missouri, have invented certain new and useful Improvements in Rotary Cutting Devices, of which the following is a full, clear, and exact description, reference being to the accompanying drawings, forming a part of this specification.

 

 

My invention relates to a rotary cutting device of the type whereby a moving web of material may be cut into sheets of a predetermined length. In cutting devices of this type, a positive and even severance of the web of material without, leaving some fibers unsevered difficult to secure, due to the rapid dulling of the cutting edge of the knife, owing to the great pressure in forcing the entire cutting edge against an abutment whereby the material is severed; or by reason of the irregularity in outline of the plane of its cutting surface. l  

 

An object of my invention is to produce a rotary cutting device that will always be positive in its cutting action, produce a complete severance of the fibers of the material and prevent clogging of the machine caused by the failure to sever some of the fibers along the line where the cut is made.

 

Another object of my invention is to produce a rotary cutting device of this type whereby only small sections of the cutting edge of the knife are engaged in sequence in cutting article along a line substantially at a right angle to the path of the moving web of material thereby obviating the necessity- :if requiring the full pressure to be brought, instantaneously upon the entire cutting surface upon the abutment against which it is adapted to press.

 

In its specific application. my invention is attachable to printing presses so that it will operate with a positive cutting action on a moving web of paper, thereby severing the web into sheets of' any predetermined length having perfectly smooth edges at the line of severance.

 

Figure l is a top or plan View of my rotary cutting device.US1006783-0

 

Fig. II is a side elevation.

 

 

Fig III is a rear elevation. Partly in section.US1006783-1

 

Fig. lV is a side elevation, partly in section.

Fig. V is a top or plan view of the cutting members showing the knife in operative condition.

 

 

Fig VI is an enlarged detail view partly in vertical section showing the cutting members in operative position.US1006783-2

 

Fig. VII   is a vertical section taken approximately on line

 

Fig. VIII is a. vertical section illustrating a modification.

 

In the accompanying drawings :WA designates a web of paper arranged between "a pair of feed rollers 1 and 1 having their journals 2 and 2 mounted in adjustable bearings 3.

 

4 designates a rotatable knife carrier, preferably in the form of a roller provided with a longitudinal recess 5, within which a knife l is slidably mounted. `Removable plates 7` constitute the end walls of the recess 5 and serve as stops for limiting the outward movement of the knife, the latter having retaining lugs 8 at its ends which extend into apertures in the plates 7. The knife is yieldingly held in position for engaging the paper by springs 9 interposed between the inner edge of the knife and the heads of the screws 10,(see VI and VII ,said screws being adjustably mounted in the knife carrier. A at11 carried by a roller 12 forms an abutment for the spring pressed knife during the cutting operation. The knife carrier 4 and roller 12 are supported by bearings 13 adjustably mounted on the frames 13 and they are caused to move in unison with the feed rollers by a train of gearing which will be presently described.

 

14 designates a drive member, preferably a sprocket chain, meshing with a sprocket 15 on the journal at one end of the roller 12. The journal at the opposite end of the roller 12 is secured to a gear wheel 16 meshing with a gear wheel 17 on the journal of the knife carrier 4, (see Fig. VII). The gears 16 and 17 cause the roller 12 and knife carrier 4 to move in unison and through the medium of an idler 18 the gear wheel 16 imparts rotary motion to gears 19 and 20 which drive the feed rollers 1 and 1.

 

In the operation of my improved paper cutter, the web of paper A is fed between the knife carrier 4 and roller 12 by the feed rollers 1 and 1 and during each revolution of the knife carrier the paper is severed by the cooperation of the cutting edge of the knife and the abutment 11.

 

It will be seen that the axis of the rotatable knife carrier 4 is inclined to the path of travel of the paper and that the knife 6 is inclined to the axis of the carrier, the knife being positioned so as to lie substantially at a right angle to the path of travel of the paper when it performs the cutting operation. (see dotted lines in Fig. The axis of the roller 1Q provided with the rotatable abutment it is parallel to the axis of the knife carrier.

 

Underlining  the cutting members, as just described, the knife is spirally located on its carrier. and when brought into cooperation with the abutment 11, it produces a positive cutting  action. gradually severing the paper smoothly on a line at right angles to the path of travel of the paper. During this cutting operation, the web of paper continues to move in the direction indicated by the arrow in Fig. l, and the knife begins its cutting action at the edge of the paper marked “A”. It must be borne in mind that the paper and the cutting edge of the knife move at the same speed, and while the cutting is performed on a diagonal line, the paper is properly advanced during the cutting operation to produce an absolutely smooth and true severed edge at right angles to the side of the paper; i.e., at right angles to the path of movement of the paper.

 

The knife carrier 4' shown in Fig. VIII is provided with a pair of knives 6 and springs 9 for forcing said knives into engagement with the paper without undue friction, thereby preserving the cutting edge of the knife. Spring Seats 25. engaging the inner ends of springs J may be adjusted to vary the pressure of the springs by a wedge 26, the latter being adjustably connected to a screw 27 rotatably mounted in a rigid late 28. The rotatable abutment carrier l2 is provided with a pair of abutments 11 which operate with the knives.

 

It is obvious that my invention is also capable of being used to perforate a moving web of paper at predetermined intervals; simply by substituting a knife having perforating points instead of a blade with a continuous edge l or by adding a perforator to the cutting device, thus perforating and cutting at the same time, when desired.

 

While I have described my invention as applied to cutting a moving web of paper, it is obvious that it could be used for cutting any other material, such as cloth, felt, leather, etc., into lengths in a manner similar to that in which it operates upon paper.

 

I claim:

 

1. A device for cutting a moving web of material comprising a rotatable knife carrier having its axis diagonally arranged to the path of travel .if the moving web of material, a knife carried by said carrier, and a movable abutment operable with the cutting edge of said knife.

 

2. A device for cutting a moving web of material comprising a rotatable knife carrier having its axis diagonally arranged to the path of travel of the moving web of material, a knife carried by said carrier, and a rotatable abutment operable with the cutting edge of said knife.

 

3. A device for cutting a moving web of material comprising a rotatable knife carrier having its axis arranged diagonally relative to the path of travel of the material a knife diagonally mounted on said carrier, said knife being so arranged as to cut the moving web of material along a line substantially at a right angle to the path of travel of said material.

 

4. A device for cutting a moving web of material comprising a rotatable knife carrier having its axis arranged diagonally relative to the path of trai el of the material, a knife diagonally mounted on Said carrier, said knife being so arranged as to cut the moving webV of material along a line substantially at a right angle to the path of travel of said material1 and an abutment operable with the cutting edge of said knife.

 

5. A device for cutting a moving web of material comprising a rotatable knife carrier having its axis arranged diagonally relative to the path of travel of the material, a knife diagonally mounted on said carrier, said knife being so arranged as to cut the moving web of material along a line substantially at a right angle to the path of travel of said material and a rotatable abutment co-operable with the cutting edge of said knife.

 

6. A device for cutting a moving web of material comprising a rotatable knife Carrier having its axis diagonally arranged to the path of travel of the moving web of material, a knife carried by said carrier, a rotatable abutment operable with the cutting edge of said knife, -and rotatable abutment being diagonally arranged to the path of travel of the moving web of material  and means for causing the carrier and abutment to move in unison.

 

7. A device for cutting a moving web of paper, comprising a rotatable knife Carrier l having its axis diagonally arranged to the path of travel of the paper, a knife mounted on said carrier. Said knife having its axis diagonally arranged to the axis of said carrier so as to allow it to occupy a cutting position at a substantially right angle to the path of travel of said paper and an abutment co-operable with the cutting edge of said knife.

 

8. A device for cutting a moving web of paper1 comprising a rotatable knife carrier having its axis diagonally arranged to the path of travel of the paper, a knife mounted on said carrier, said knife having its axis diagonally arranged to the axis of said carrier so as to allow it to occupy a cutting position at a substantially right angle to the path of travel f said par, and a notatable position at a substantial  right angle to the abutment co-operable with the cutting edge l path of travel of the paper, -and a rotatable abutment co-operable with the cutting edge of said knife.

 

9. A device for cutting a moving web of said knife, the axis of said abutment bel 5 apex', comprising  a rotatable knife carrier being parallel to the axis of the knife carrier, having its axis diagonally arranged to the path of  travel of the paper,  a knife mounted on said carrier, said knife having its axis in the presence of diagonally arranged to the axis of said carrier so as to allow it to occupy a cutting position

 

OZIAS PAQUIN

 

A.    J MCCAULEY, 10 - E. B. LINN.

 

 

P.S. Some corrections were made from the document we started working from as it contained some words which were not reproduced properly by the optical character reader.  Corrections may not be representative of the original description given by O. Paquin .