US1416800A

US1416800A - Coupon-cutting device

Info

Publication number: US1416800A
Application number: US432213A
Authority: US
Inventors: Detjen Henry
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-12-21
Filing date: 1920-12-21
Publication date: 1922-05-23
Anticipated expiration: 1939-05-23

Description

H 05mm. COUPON CUTTING DEVICE.

APPLICATION FILED DEC. 2I,-I920. 1,416,800; e ed May 23, 1922.

2 SHEETS-SHEET I.

y @HEHFH Deijen I H. DETJEN.

cduPoN cunum DEVICE. APPLICATION FILED DEC. 2.11 1920.

Patented May 23, 1922.

2 SHEETS-SHEET 2.

woaaw UNITED STATES ATENT OFFICE.

HENRY DETJEN, or MANITOWOC, WISCONSIN.

couron-currme nnvrcn.

' Specification of Letters Patent.

To all whom) it may concern: Be it known that I, HENRY DETJEN, a c1t1- zen of the United States, and resident of Manitowoc, in the county of Manitowoc and State of Wisconsin, have invented certain new and useful Improvements in Coupon- Cutting Devices; and Ido hereby declare that the following is a full, clear, and exact description thereof.

My invention refers to cutting machines and has for its primary object to provide a simple economical and effective means for cutting movement of the will progressively contact clipping'rectangular coupons or tabs from the marginal edges of a sheet. Specific ob jects of my invention are:

To provide a pair of rectangular associated floating shear blades operating in conjunction with a fixed whereby the mitered edges smoothly severed from the sheet, the cut resulting in a clean sharp corner;

To provide means for attaching the blades to a plunger head so arranged that the mitered corners of the blades are normally spaced apart, with the straight cutting edges inclined obliquely relative to the fixed shearing-surface, where y upon a downward or said blades, they with the shearing edges of the fixed surface to thus render them self-sharpening .throughout their entire length, and at the corner toes of the blades will close up to form a continuous cutting'edge, resulting in pressing the blades a clean,sharp separation of the couponfroln the sheet;

To provideimeans for micromically adj usting the blades endwise, whereby-the nor-' mally spaced beveledv or mitered toes there of, will come, together at the finish of the cutting operation to, insur e a cleancut corner-"Y ,Tb provide vielding means for, normally apart "at their toe end, from 1 a fulcrum at the 1 heel portions, where by the cuttingedgesof the companion blades willnormally overlap the base shearing-sun.

faces froma said'bladesfwo a With the above and other minor objects pointfnear the heel portion of in 'view,. the invention consists in certain to the accompanying drawings and subsequently claimed.

-ure 1.

shearing-surface of the coupon are same time, the mitered frame, provided at a shearing-surface 2, which surface for the to its lower end illustrated in skeleton-form, having a hall of front feet 6-6, and a rear foot 7. The

8, which sleeve upon a pin 8" that extends from the arm 3.

e of the head are peculiarities of construction and combina-.

t1on of mechanical elements, as herein de-. tures throug In the drawings,

Figure 1 representsa central sectional elevation ofa cutting machine embodying the features of my invention, the parts being shown in their normal position of rest.

Figure 2 is a cross section section being indicated by line 2-2 of Figis a detail cross section through one of the cutting blades illuslgure 4 is a similar fragmentary view,

illustrating one corner the position assumed by the lmives or blades at the completion of the cutting stroke, whereby the mitered corners of said blades are brought together to separate the tab or coupon cleanly at its corner, and

Figure 5 is a diagrammatic view of a sheet showing one-arrangement of detaching coupons, wherein a certain number of such coupons have been removed from the lower right hand corner.

Referring by characters to the drawings, 1 represents a base, in the form of a hollow its upper face with of the machine and convenience of the construction, in this instance is separable. The base is formed with an integral arm 3, which arm carries a spr ng controlled plunger 4, having attached a head 5, the same being skeleton head is also provided with a sleeve is 'reciprocatively guided ehead, as awhole, is encased in a suitable shell 9. The rear foot 7 and front foot 6 provided' with' studs 10-10' respectively, the same comprising anchors for a looselvfitted si de blade 11, said blade being provi ed with slightly elongated apermit end play as best shown in Figures 1, 2 and 3.

v Patented May 23, 1922. Application filed December 21, 1920. Serial No. 432,213.

ofthe same, the a means for anchoring the blade to which the pins extend, to perthe blade as shown.

The heel portion a, of the side blade, which is attached to the foot 7 and the toe portion of said blade, which is attached to the foot 6, is pressed outwardly by means of coil springs 1212 respeet1vely, whereby the lower obliquely disposed cutting edge 11 of saidblade is yieldingly held in contact with the shearing-surface 2 at the heel end of said blade when the parts are in their normal or inactive position.

Thus, it will be seen that the side blade, in conjunction with the lower cutting surface 2, forms a V-shaped mouth for the insertion of a sheet of paper, when it is desired to sever a coupon therefrom. In order to sustain the cutting strain exerted upon the blades, the feet 7 and 6f are formed with offset lips 13-13 respectively, which lips engage the juxtaposed upper surfaces of The toe end of the blade is formed with a beveled edge 11", the same being arranged to swing inwardly and forming a cross mitered joint in con' nection with a corresponding beveled toe edge 14" of an end blade 14. This end blade 14 is disposed at an approximate right angle to the side blade, and is anchored to the feet head 6 and 6' respectively in the same manner as that previously described, with-reference to the'aforesaid side blade, the-parts being lettered to correspond to the same mechanical elements associated with'said side blade.

It should also be understood that the heel portion a of the end blade contacts with the rectangular shearing-surface 2, in the same manner as that previously described in connection with the side blade, and that the lower cutting edge 14 of said blade is disposed obliquely with relationto the cutting surface of the base to form a continuation of the feed mouth when the head is sustained in its upward, inactive, normal position. WVhen the companion knives are assembled, it will be noted that their associated springs will split the mitered toes apart and that said split, in effect, will fulcrum upon the heel of these knives at that point which the heels thereof engage the shearing-sun faces 2. Thus the knives in their normal, inactive position will incline outwardly or overlap the rectangular shearing-surfaces of the base from their heel portions, whereby a positive shearing action will result, in connection with both knives progressively along the line of their respective shearing surfaces when the head is depressed in a cuttinlg operation.

t will also .be observed that when the knives are thus cutting and gradually retracting in opposition to their spring control, the mitered toes of the knives are gradually drawing together, and as best shown in Figure 4, at the end of the cut when it is desired to sever the corner of the coupon or tab cleanly. These mitered toes contact to form a closed rectangular knife, whereby there is no liability of a ragged edge occuring at the mitered corner of the coupon, and it is thereby cleanly severed.

It will also be observed that the knives throughout their entire length from heel to toe will be automatically sharpened at each cutting operation. In order to micromically adjust the gap between the toes of the knives, whereby they will close up snugly, even though the knives were subjected to wear from sharpening. I provide set 'screws 15-15 which are in threaded union with the feet 7 and 6 and the heads" of which screws are adapted to engage the rear ends of their associated blades, whereby said blades can be moved slightly forward or back, as the case may require. By referring to the diagrammatic view of Figure 5, it will be seen that when it is desired to sever a coupon ticket or the like from an inte ral sheet, the sheet is inserted under the b ade carrying head and when the plunger is depressed, the side knife 11 will cut the coupon along toward line indicated at Y, while the end knife 14 will complete the right angular out upon the line indicated at w.

lVhile I have shown and described an exemplification of my invention, in all of its structural features, it is understood that I may vary such details for construction Within a fair interpretation of the claims, as may be putupon them by the skilled mechanic.

I claim:

1. In a cutting machine having a reciprocative head, a base provided with a rectangular shearing-surface; the combination of a pair of rectangularly positioned blades 105 carried by the head having their shearing edges obliquely disposed with relation to the base shearing-surface, the heels only of which blades normally engage said shearing surface, spring means for normally 110 separating the toes of the aforesaid blades wherebyv the lower cutting edges thereof overlap the rectangular shearingsurfaces of the base, and whereby the knives, when cutting progressively sever 115 from heel to toe and simultaneously contract, causing the toe portions to come together to form anvunbroken corner cutting surface, in the completion of the cutting stroke of the blades.

2. Ina cutting machine having a reciproeative head, and a hollow base provided with inner rectangular shearing-surfaces, the combination of a pair of rectangularly disposed knives associated with the head, each 12 knife being provided with an obliquely disposed lower cutting face and a mitered toe, yielding means carried by the head for independently operating the knives therefrom starting from a heel point of contact be- 30 tween the lower cutting edges of the knives ends, and means associated with the head 20 and the base shearing-surface, when the for longitudinally adjusting the blades.

parts are in their normal inactive position, 4. A cutting machine comprising a base and means associated with the head for suphaving a rectangular shearing-surface at its porting the knives to permit play of the upper edge, a reciprocative head positioned same. above the shearing-surface, a pair of rectan- 25 3. A cutting machine comprising a base gularly disposed transversely yield-able having a rectangular shearing-surface at knives associated with the head, having its upper edge, a rectangular reciprocative obliquely disposed cutting edges adapted to head positioned above the shearing-surface engage the shearing-surface normally at a pair of knives associated with the head havslightangle thereto, whereby said knives are 30 ing obliquelydisposed cutting edges adapted forced inwardly against the shearin -surto engage the shearing-surface of the base, face from their heel ends in a cutting operapins for loosely supporting the knives in contion.

nection with the head, springs interposed be- In testimony that I claim the foregoing tween the inner face of the knives and head; I have hereunto set my hand at Manitowoc 35 whereby said knives are forced outwardly in the county of Manitowoc and State of from a shearing contact point between the Wisconsin.

cutting surfaces of the blades at their heel HENRY DETJEN.