US434285A - Paper cutting machine - Google Patents

Description

, L A M Am (No Model.)

PAPER GUTTING MAGHINB.

No. 434,285. Patented Aug. 12, 18.90.

Len.

Wl TN E SSE S A TTOHNE YS [No Model.)

No. 434,285. Patented Aug. 12, 1890.

4 mvg/V109.'

lez'alzderalm.

AT1-@HNE rs (No Model.) l

W/TNESSES all WWW A. MALM.

PAPER CUTTING MACHINE.

3 Sheets-Sheet 3.

Patented Angl-2, 1890.

we noms Pneus co4, mow-mum, wnsnwamn, u. c.

A TTOHNE YS UNITED STATES PATENT OFFICE.

ALEXANDER MALM, OF NEW YORK, N. Y., ASSIGN OR TO T. W. & C. B.l SHERIDAN, OF SAME PLACE.

PAPER-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 434,285, dated August 12, 1890.

Application iiled October 31, 1889. Serial No. 328,767. (No model.)

.To all whom t may concern.

Be it known that I, ALEXANDER MALM, a citizen of the United States, residing at New York, in the county and State of New York, have invented new and Auseful Improvements in Paper-Cutting Machines, of which the following is a specification.

This invention relates to certain improvements in paper-cutting machines of that class in which both the knife and the paper-clamp are situated above the work-table and connected in such a manner that the pressure of the clamp upon the paper increases or diminishes with the resistance which is to be overcome by the knife.

The peculiar and novelconstruction of my paper-cutter is pointed out in the following specification and claims, and illustrated in the accompanying drawings, in which- Figure l represents a side elevation. Fig. 2 is a front elevation. Fig. 3 is a horizontal section in the plane x, Fig. l. Fig. 4 is a similar section in the plane y y, Figs. I and 2. Fig. 5 is a transverse section in the plane zz, Fig. 2.

In the drawings, the letter A designates the frame which supports the working parts' of my machine.

B is the work-table.

C is the knife, and D is the paper-clamp The knife C is firmly secured to a crosshead E, from which extends a stud into an oblique slot, Fig. 2, whereby a shear cut is imparted to the knife.

F F are two toothed segments, which are loosely mounted upon hollow studs G G, Fig. 3, secured in the standards of the frame A. On each of these segments is secured a stud a, which swivels in its bearing, and which connects by a pivotb with the lower end of a connecting-rod c. The upper end of this connecting-rod is attached, by means of a pivot d, to a link e, which is connected to the crosshead E by means of a pivot f, Figs. 1 and 2. By these means universal joints are formed at both ends of each of the connecting-rods c, so that the same can readily accommodate themi selves to the compound movements of the knife and also to the movements of the seg ments.

much heavier than those portions which form y the bearings for the swivel-studs a, so that said segments when left to follow their gravity assume the position shown in the drawings, in which position they are arrested by stops 'g, Fig. l, the weight of said segments being such that by their action the cross-head E, together with the knife C, is elevated above the table B, Figs. l and 5.

The paper-clamp D is rmly connected to slides h, which move in guideways i, Figs. 4 and 5, formed ou the inner surfaces of the standards ofthe frame A, and the lower ends of which are connected by a traversej. This traverse connects by links la with levers H, which swing on studs l in the standards of the frame A, and the loose ends of which are pivoted to arms m,.which are loosely mounted on the traveling shaft I. This shaft extends loosely through straps n n, which swing loosely on the driving-shaft J, and on the outer ends of said shaft I are firmly mounted pinions o o,

which engage the toothed segments F F. The driving-shaft J extends loosely through the hollow studs G G, Fig. 3,and on it are loosely mounted two pinions 1o p', between which is situated a clutch-sleeve K, which connects with the drivin g-shaft by a feather-key q, and which is so constructed that it can be thrown in engagement either with the pinion p or with the pinion p.

The pinion p is in gear with a cog-wheel L by means of an intermediate pinion pl, said cog wheel L being firmly mounted on the traveling shaft I, and the pinion p meshesinto a cog-wheel M, which is firmly mounted on the traveling shaft I. If the clutch-sleeve K is thrown in gear with the pinion p', the traveling shaft Iv is rotated in the direction of arrow 1, Figs. l and 5, the segments F are turned in the direction of the arrows marked thereon in Figs. 1 and 5, and the knife C is caused to descend. If the clutch K is thrown in gear with the pinion p, the traveling shaft IOC I rotates in the direction opposite to the arrow l and the paper-clamp D is raised, so that a fresh pile of paper can be introduced.

The clutch-sleeve K can be moved bya handlever N, and it is moved automatically by one of the toothed segments F as soon as the knife C has completed its downward stroke. For this purpose the hand-leverNis connected by a rod fr with a bell-crank lever O, from which extends a tappet-rod P, Figs. l and 3, the free end of which is in such a position that it is acted upon by the segment F, and that the clutch-sleeve is moved at the moment the knife has completed its downward stroke. As soon as the clutch-sleeve is thrown out of gear with the pinion p the segments F return to their normal position and the knife is raised, and as the clutch-sleeve engages the pinion p the paper-clamp is raised and the paper can be adjusted for the next cut.

Vhat I claim as new, and desire to secu re by Letters Patent, is-

l. In a paper-cutter, the Combination, with the knife and with its cross-head, of toothed segments mounted loosely on the drivingshaft, and rods extending from the cross-head to the segments and connected to the lat-ter close to the shaft, whereby the gravity of the segments is enabled to raise the cross-head and the knife, substantially as described.

2. The combination,with the frame A, crosshead E, and knife C, of the driving-shaft J, the segmental gears F F, loosely mounted on the driving shaft, the rods c, universally jointed to the segmental gears and to the cross-head, a traveling shaft I, adapted to rotate in reverse directions and having two pinions meshing, respectively, with the segmental gears, the paper-clamp D, connections between the traveling shaft and paper-clamp, and clutch mechanism for imparting motion in reverse directions to the traveling shaft from the driving shaft on which the segmental gears are loosely mounted, substantially as described.

The combination, with the cross-head E, the knife C, and clamp D of a paper-cutter, of the driving-shaft J, the segmental gears F, loosely mounted on the driving-shaft, the rods c, jointed to the segmental gears and to the Vcross-head, the traveling shaft I, connected with the clamp and geared to the segmental gears, a clutch mechanism for imparting motion in reverse directions to the traveling shaft from the drivin of-shaft, and a clutchoperating lever having a tappet P, arranged in the path of and operated by one of the segmental gears, substantially as described.

et. In a paper-cutter, the combination, with the knife C and the clamp D, of the drivingshaft J, the segments F, mounted loosely on the drivin g-shaft, the stops g for arresting the segments, the traveling shaft I, the pinions o, mounted on the traveling shaft and engaging the segments F,the pnions p 19', mounted loosely on the driving-shaft and geared in a reverse direction to the traveling shaft and the clutch-sleeve K, snbstan tiall y as described.

In testimony whereof I have hereunto set my hand in the presencc'of two subscribing witnesses.

ALEXANDER MALM.

Vitnesses:

XV. C. l-IAUFF, E. F. KAs'rENI-IUBER.

Images