US732754A - Paper-cutter. - Google Patents

Description

- PATEN'ITED JULY 7. 1903.

- 1; L. LEE.

PAPER (BITTER.

APPLICATION FILED OUT. 23. 1902.

2 SHEETS-SHEET 1.

' 1m MODEL.

PATBNTED JULY 7, 1903.

JQL. LEE.

PAPER CUTTER. APPLICATION FILED OUT. 23. 1902.

2 sums-sums;

no MODEL.

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- UNITED STATES Patented July 7, 1903.

PATENT OFFroE.

JAMES L. LEE, OF CHICAGO, ILLINOIS, AS SIGNOR TO CHALLENGE MACHINERY C0,, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

PAPER-CUTTER.

SPECIFICATION forming part'of Letters Patent No. 732,754, dated July 7, 1903.

Application filed October 23, 1902. Serial No. 128,394 (No model.)

To aZZ whom it may concern.-

Beit known that I, JAMES L. LEE, a citizen of the United States, residing at Chicago, countyof Cook, and State of Illinois, have invented certain new and useful Improvements in Paper-Cutters, of which the following is a full, clear, and exact specification.

My invention relates more particularly to that class of cutters for cutting paper or other material in which the knife'or cutter operates with a shear out, sliding longitudinally while making its rising and falling movements between side standards or guides which are slotted vertically for permitting of these movements of the cutter-bar and its knife. The slots for the reception of the ends of the bar and knife must of course be as wide as the combined thickness of these two members, and in many instances they are necessarily of considerable Width. When the bar is in its elevated position preparatory to descending upon the paper, a considerable space is therefore left unoccupied directly under those portions of the ends of the knife and bar which are between the guides or within the slots, and should the strip to be severed from the main pile of paper be of less width than this space or slotjunder the knife the shear action or longitudinal movement of the knife 0 causes an endwise movement of the severed strip, forcing it between the guides or into this slot, so that as the bar further descends its lower edge binds against the portion of the severed strip which is in the slot and in 3 5 many instances damages the machine, to say nothing of the trouble and annoyance occasioned by the clogging up of the guides.

The object of my invention is to overcome these difficulties and provide improved means 0 whereby the slots or cutter-bar guides under the ends of the bar and knife will be closed flush with the knife and bar and with the inner face of thelstanda'rd, so that the severed strip, however narrow it may be, can never work into these slots.

With these ends in view my invention con sists in certain features of novelty in the construction, combination, and arrangement of parts by which the said objects and certain other objects herein-afterappearing are attained, all as fully described with reference on the line 3 3, Fig. 1. 4 I

tion taken on the line 4 4, Fig. 1. Fig. 5 is to the accompanying drawings, and more particularly pointed out in the claims.

In the said drawings, Figure 1 is a side elevation, partly in section, of a paper-cutter 55 provided with my improvements. Fig. 2 is a detail plan section thereof, taken on the line 2 2, Fig. 1. Fig. 3 is a similar section taken Fig. 4 is a similar seea vertical section taken on the line 5 5, Fig. 1.- Fig. 6 is a front elevation of apaper-cutter, shown in dotted lines, with a modified form of .my improvements applied thereto and illustrated in full lines; and Fig. 7 is a still further modified form..

1 is the bed or table upon which the paper or other material to be out is placed and from the sides of which rise the usual guide-standards 2, only one of which is shown in Fig. 1 '70 of the drawings, inasmuch as my invention is concerned with this one only; but the other is of similar construction and arranged diametrically opposite on the other side of the table 1, as usual in this form of paper-cutters.

bar, which are shown in Fig. 6, which sup vport the bar and enable it to .move up and down while also forcing it to produce the end-v wise movement or shear out, while the bar may be operated by means of a connectingrod 7,secured to any suitable operating mech- 9o anism. (Not necessary to illustrate.) It will thus be seen that under the end ofthe cutterbar and the knife is left considerable space when the knife is in its elevated position, which is as high as the knife and bar from the table or bed 1 and as wide as the slot 3, and

this is the space which becomes clogged with the strip of paper severed by the knife as the knife descends should the strip be narrower than this space, the strip being forced endwise into the slot 3 by the longitudinal or shearing action of the knife and bar, as before explained. In order that this space may be completely closed flush with the inner face of the standard 2 and even with the lower edges of the bar 1 and knife 5, (which edges are usually beveled, and thus increase the wedging action of the paper strip should it enter the slot,) I employ a slide 8, which accurately fits this space and has its upper end beveled to fit the bevels of the lower edge of bar 4 and knife 5, as shown at 9 and 10. The edges of the slide 8 are provided with tongues 11, fitting in suitable guides or grooves 12, formed in the side walls of the slot 3, and one side of the slide is formed with an arm 13, which is supported by a lug suitably connected with the cutter-bar 4. This lug is in the form of an antifrictionroller 14, secured to arm 13 by screw 15 and projecting into a longitudinal slot 16, formed in cutter-bar 4,- so that as the cutter-bar rises and falls the slide 8 will rise and fall with it, strictlyin a vertical direction, however, while the knife and bar go through theirlongitudinal movement. The arm 13 is slightly offset from the slide 8, as better illustrated in Figs. 1, 2, and 5, so as to make room for the guide-tongue 11, and the standard 2 is vertically recessed or cored out, as shown at 17, to accommodate the arm 13.

In assembling the parts the screw 15 may be inserted through a hole 18 in the side of the standard 2 after the lug 14 has been put in place. 7

In the form of the invention shown in Fig.

6 the slide 8 instead of being connected di-.

rectly to the cutter-bar is operated from the shaft 19 of the main gear 20 by means of a crank 21 on said shaft, a connecting-rod 22, secured at one end of said crank and at the other end to one arm 23 of a bell-crank lever,-

whose other arm 24 is connected by link 25 to the lower end of slide 8 by means of pivot 26, so that at each revolution of the gear 20, which causes the cutter-barto make one upward and one downward stroke, the slide 8 will undergo a corresponding movement fol lowing up and down under the bar, as before described.

In the form shown in Fig. 7 the outer end of the cutter-bar 4 is provided with a depending arm 27, which carries a forked lug 28, receiving a lug 29 on the lower end of an extension 30, which supports at its upper end the slide 8. Consequently as the bar 4 rises and falls the slide will undergo a similar movement, the longitudinal movement of the bar 4 independently of the slide 8 being permitted by the slot 28.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is-

1. The combination of a knife movable transversely and longitudinally, a guide for said knife, a bed or table on which to support the material to be cut by said knife and a slide interposed between the edge of the knife and said table and movable with the knife transversely thereof and means for holding said slide against movement longitudinally of the knife, substantially as set forth.

2. The combination of a knife movable transversely and longitudinally, a bed or table on which to support the material to be cut by said knife, a guide for said knife extending from said bed or support, and means located between the knife and said bed for closing the space between the knife and the bed flush with the edge of said knife-guide, substantially as set forth.

3. The combination of a knife movable transversely and longitudinally, a bed or table on which to support the material to be out by the knife, a guide for said knife projecting from said bed and a slide operatively related to said knife arranged contiguous to the cutting edge thereof and said guide and movable in a direction transversely of the knife, substantially as set forth.

4E. The combination of a knife movable transversely and longitudinally, a bed on which to support the material to be cut by the knife,a guide projecting from said bed forsaid knife, a slide arranged contiguous to the edge of the knife and the guide and projecting below the surface of the bed and means operativelyconnectingsaidslide and knifetogether, substantially as set forth.

5. The combination of a knife movable transversely and longitudinally, a bed on which to support the material to be cut bysaid knife, a guide rising from said bed for said knife, a slide located under the edge of the knife and adapted to project below the surface of the bed contiguous to said guide and means whereby said slide is moved with the knife flush with the inner face of said guide, substantially as set forth.

6. The combination of a knife movable transversely and longitudinally, a bed on which to support the material to be cut by the knife, a guide for the knife rising from said bed and with reference to which the knife slides in horizontal and vertical directions, a slide arranged under the edge of the knife contiguous to said guide, and having its inner face flush with the inner face of the guide, means for confining the movement of said guide to the perpendicular with reference to the bed and means for operatively connecting the knife and slide together, substantially as set forth.

7. The combination of a knife movable transversely and longitudinally, a bed on which to support the material to be out by the knife, a slotted guide in which the end of the knife slides, and a slide confined in said slot under the edge of the knife and movable with the knife, substantially as set forth.

8. The combination of a knife movable transversely and longitudinally, a bed on which to support the material to be cut by the. knife, a guide projecting above the bed for said knife, a slide arranged under the edge of the knife contiguous to the inner face of said ICO guide and adapted to project below the surbed, and a slide arranged under the edge of 10 the knife contiguous to said guide and depressible with the knife below the surface of the bed, substantially as set forth.

JAMES L. LEE.

Witnesses:

F. A. HOPKINS, M. B. ALLSTADT.

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