US583141A - Photo-lttho - Google Patents

Description

`4(N Model.) 3 sheets-sheen 1.

P. DILLON.

PAPER GUTTER.

10.583,141. Patented May 25, 1897.

ummm Q4 HIIIIIIIIII (No Model.) 3 sheets-sheet 2. P. DILLON.

l PAPER GUTTER. 1\T0.583,141. `Patented May 25,1897.

UNITED STATES PATENT EEicE.

PETER DILLON, OF LAIVRENCE, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO HENRY C. KING, OF SAME PLACE.

PAPER-CUTTER.

SPECIFICATION forming part of Letters Patent No. 583,141, dated May 25, 1897.

Application filed May 25, 1896. Serial No. 592,980. (No model.)

To all whom, t may concern:

Be it known that I, PETER DILLoN, of Lawrence, county of Essex, State of Massachusetts, have invented an Improvement in Paper-Out- 5 ters, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

My invention relates to improvements in fo paper-cutters, and has special reference to means for varying the speed of the cutter relatively to the feed of the paper, the main object of myinvention being to provide means for quickly and accurately changin gthe speed I5 of the cutters, so that different lengths of sheets may be cut from the web of paper as it is fed to the cutters without changing the rate of feed thereof.

In the accompanying drawings, illustrative zo of my invention, Figure 1 is an end elevation of a paper-cutter with my improvements applied thereto. Fig. 2 is a side elevation thereof looking at Fig. l, toward the left, in the direction of arrow 2. Fig. 3 is a fragmentary z 5 detail, in side elevation, showing the mechanism for varying the speed of the cutter. Fig. 4 is an end elevation of the mechanism shown in Fig. 3. Fig. 5 is a horizontal sec-` tion thereof on the dotted line 5 5, Fig. 4:.

3o Fig. 6 is av cross-sectional detail showing the yielding provision for the cutters.

In the present embodiment of myinvention herein shown the frame A, idlers a 0L for directing a plurality of webs of paper between 3 5 the guides as, the edge-cutters a4 a5, the feedcylinder a6, the pressure-roll a7 to feed the paper along the table a8, the operating meehanism for the parts mentioned, and the cutter-blade a9 and cutter-carrier am are of any 4o usual or preferred style or pattern.

The paper is fed in the direction of arrow 3, Fig. l, and trimmed by the edge-cutters a4 a5 and delivered continuously over the table a8 and stationary cutter au, where it is caught 4 5 and cut into she'ets by the revolving cutter a9, the sheets being conveyedaway by the cari rier-belt am.

In order that different lengths of sheets may be cut from the continuously-delivered web 5o of paper, it is necessary to vary the relative speed of the revolving cutter and the paper. In the present instance of my invention I accomplish this by means of a face-wheel connected with the power.-shaft.

Referring to Figsf, e, and 5, it will be seen that the power-shaft h," carrying the usual fast and loose pulleys b b2; has secured thereto the fast friction-wheel or drive-wheel O and the loose or driven wheel O; the former in the present instance being shown as fixed immovably on the main shaft by means of thepin c and the latter or driven wheel O/ being shown as mounted on a long sleeve cf, loose on the shaftb and provided at its outer end with the cog-pinion c2, the latter meshing with the gears c3 c4 t'o revolvethe cutters a9. The sleeve c' may be separated from the wheel O by a washer fr. The main shaft b is also provided with a cog-pinion b3, meshing with the gears b b5, for operating the paper-feeding mechanism.

Adjacent the fast and loose friction-wheels C C and resting against the same in frictional contact therewith I have shown two facewheels D D, having their axes perpendicular to the main shaft and being preferably provided with ball-bearings d, in order to reduce the frictional resistance to a minimum. The face-wheels are journaled in upwardlyextending brackets d cl2, which are substantially similar and are hinged at their lower ends at d3 to a carrier E. These faee-wheels are held towardv each other in yielding engagement against the diametrically opposite sides of the drivewheel O and driven wheel O by means of a tension device. The tension device is herein shown as comprising a rod f, secured in the bracket kd2 and passing through the bracket d', its free end being screw-threaded and provided with a hand-nut f, between which and a movable collar f2 the tensionspring f3 is arranged, so that by loosening or tightening the hand-nutf the nut f2 may be caused to bear with greater or less yielding pressure against the bracket d', thereby correspondingly varying the frictional pressure of the face-wheels against the opposite sidesof the wheels O C.

The drive-wheel C, being fixed to the main shaft, rotates with it at the same speed and correspondingly rotates the face-wheels, the speed of rotation of the latter, however, de-

pending upon the distance from the center of the point of Contact of the drive-wheel therewith, and the face-wheel transmits its IOO motion to the driven wheel C', the speed of the latter being also further varied by the distance itis removed from the center of the face wheel or wheels.

By changing the relative position of the face-wheels and the wheels C C', so that one or both of the latter shall be brought nearer or farther away from the center of the facewheels, the speed of the driven wheel C relatively to the main shaft h will be correspondingly changed. In order, therefore, to vary the relative position of the wheels as stated, I have mounted the carrier E in ways e in the under side of a guide-hanger II beneath and parallel to the power-shaft Z). A rod e, having at its outer end a hand-wheel E', is mounted in the frame A and is provided at its inner end with threads in engagement with a lug e2 on the carrier E, whereby the latter may be quickly and accurately moved one way or the other in the guideway of thehanger II. The latter is provided with an elongated slot 7L to receive the rod F in order to permit the necessary movementthereof when the face-wheels are reciprocalied by the mechanism just described. A gage g and pointer g' are suitably provided in order to indicate to the operator the relative change in movement of the cutter and feeding apparatus, or, in other words, to indicate the lengths of the sheets being cut. ihile I have herein shown two face-wheels, in order that one may counterbalance and support the other, yet I desire it to be understood that one of these may be omitted within the scope of my invention; also, while I have shown the wheels C C as relatively immovable lengthwise on the main shaft it is obvious that either one or both may be movable thereon; also, it is within the scope of my invention to provide either or both of these wheels otherwise connected with the main shaft than as herein shown; also, the face-wheels may be mounted in stationary bearings and the relative movement desired may be secured by moving either or both of the friction-wheels. Proper gripping frietional action between the surfaces of wheels C C and D D is secured by providing the latter with annular inset pieces of wood in yw and the former with leather surfaces cx, as shown.

In order that the paper may be fed with eX- treme precision and accuracy to the cutters, I have provided the auxiliary feed-rolls l( K, mounted on the table as, closely adjacent to the cutters, so as to Iirmly feed the paper at that point. These rolls are driven by suitable lneans, here shown as a belt k2.

A further provision is shown in detail in Fig. (5, the object thereof being to permit a relative yielding of the movable cutter ai and the Vfixed cutter a in ease the paper should get wedged between the two, or for any reason it should be necessary in order to avoid accident that one cutter should yield laterally to the other. In the present instance the stationary cutter au is mounted in the support L, which rests loosely at its lower end on the frame ot the machine and is limited as to its outward adjustment by suitable means, as bythe bolt l, the upper portion thereof being held yieldingly against the head of the bolt Z by means of one or more springs or rubber cushions R. \Vhen, therefore, it becomes necessary in the operation of the machine for the cutter-blade a to move away from the cutter-blade a, this yielding cushion R permits the required movement.

My invention is not restricted to the particular details thereof as herein shown, inasmuch as many changes may be resorted to without departing from the spirit and scope of my invention.

IIaviug described my invention, what I claim, and desire to secure by Letters Patent, 1s-

l. The combination with a paper-cutter, and means to feed the paper thereto, of a power-shaft, a d rive-wheel fast on said shaft, a power-transmisson face-wheel in frictional engagement with said dlive-wheel, and a driven wheel loose on said shaft, said driven wheel being driven by said face-wheel and connected with and to operate said cutter, and means to change the relative positions of the said wheels for varying the relative speed of the cutter, substantially as described.

2. In a paper-cutter, a power-shaft, two wheels respectively fast and loose thereon, two opposing face-wheels in frictional engagement with said two wheels, independent journal-brackets in which said face-wheels are mounted, a carrier on which said brackets are pivoted, and means to reciprocate said carrier longitudinally of said shaft, substantiallyas described.

In apaper-cutter, a power-shaft, a drivewheel carried thereby, two opposing facewheels in frietional engagement with the drive-wheel, a driven wheel driven by said face-wheels, brackets for the face-wheels, a carrier to which said brackets are independently pivoted, and means to hold said brackets yieldingly together, substantially as described.

4. In a paper-cutter, a power-shaft mounted in fixed bearings, a drive-wheel fixed thereon, and a driven wheel loose thereon and provided with an extension having means for gearing with and to operate the cutter, two opposing face-wheels in frietional engagement with said dri ve-wheel and driven Wheel, brackets in which said face-wheels are journaled, a carrier forsaid brackets and on which they are pivoted, a guide-han ger having ways in which said carrier is mounted, and means to reciprocate the latter in said ways, substantially as described.

In testimony whereof I have signed my name to this speciiication in the presence of two subscribing witnesses.

PETER DILLON.

IVitnesses:

HENRY C. KING, GEO. H. MAXWELL.

ICO

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