US553356A - Line-printing machine - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. G. F. MOADAMS.

LINE-PRINTING MACHINE.

No. 553,366. Patented 12111.21, 1896.

UNITED STATES GEORGE F; MOADAMS, OF BROOKLYN, NEV YORK.

LINE-PRINTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 553,356, dated January 21, 1896.

Application filed June 19, 1895. Serial No. 553,323. (No model.)

To 00% whont it may concern:

Be it known that I, GEORGE F. MGADAMS, of the city of .Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Line-Printing Machines, of which the following is a specification.

I will describe in detail with reference to the accompanying drawings a machine for line-printing a continuous Web of paper embodying my improvement and will afterward point out the novel features in claims.

Figure 1 represents a side elevation of the machine; Fig. 2, a longitudinal vertical seetional view of the same, and Fig. 3 a plan. Fig. 4 represents a vertical section corresponding with Fig. 2, but on a larger scale,

of the printing-rollers, the impression-rollers,

the inking-rollers, and the appurtenances of the latter. Figs. 5 and 6 are detail views which will be hereinafter explained.

Similar letters of reference designate corresponding parts in all the figures.

A A designate the framing of the machine, at one end of which is arranged the roller B, from which the web of paper X to be ruled or line-printed is supplied and near the other end of which'is arranged the take-up roller C, on which the ruled or lined web is taken up. Between the supply-roller B and the take-up roller O are arranged printingrollers D D, for ruling or line-printing the two sides of the web, and two impression-rollers E F. The distance between the printing-rollers and the take-up roller 0 is such that the ink on the paper will be dry before the web reaches the take-up roller. For the purpose of preventing the sagging of the paper between the printing-rollers D D and keeping it well elevated for drying, a supporting-roller G is arranged in suitable hearings in the framing A A.

To economize space in the drawings I have represented a portion of the bed-plate A as broken away and the portions of the machine on either side of the plate as brought much closer together than they would actually be.

The printing-rollers D D consist of what are known in line-printing machines as disk rollers, the printing-surfaces being the edges of a series of properly-spaced disks. The impression-roller E, which co-operates with the printing-roller D, is a grooved metal roller, the grooves of which are opposite the disks of the said roller D, and the impression-roller F, which co-operates with the printing-roller D, is a plain cylindrical roller faced with vulcanized india-rubber or other material, which gives it a soft or yieldingperipherical surface. The said roller F is so faced to make it serve the additional purpose of assisting the web to drive the impression-roller E and the printin grollers, as will be hereinafter more fully described.

The printing-rollers D D and the impression-rollers all have their bearings in standards A erected upon the side framing A, the said standards A serving also to support the ink-fountains H H and the inking-rollers I I. The soft-surfaced roller F runs in fixed hearings in the standards A The journals of the roller D are fitted in slotted bearings a in the said standards, and the journals of the rollers E and D are fitted to slotted bearings a in the said standards in order that they may be self-adjusting to each other and to the roller F by their own weight. The disk roller D and the grooved impression-roller E are both supported upon the soft-surfaced impression-roller F.

The inking-rollers I I, which supply the ink to the printing-rollers D D. receive the ink from the fountains H H through wicks J J, each wick consisting of a strip of flannel, felt or other suitable absorbent material, the lower edge of which is immersed in the ink and the upper edge of which projects over one edge of the fountain and lies loosely on the top of its respective inking-roller. In order to prevent these wicks from being pulled out of the fountains by the friction of the inking-rollers upon them, the upper edge of the fountain is provided or furnished with a toothed blade 19, the upper toothed edge of which projects slightly above the edge of the fountain, so that the wick will rest upon it. A face view of a portion of one of these blades is shown in Fig. 6. This blade might be formed by toothing the edge of the fountain itself.

For the purpose of spreading the ink on the inking'rollers each ink-fountain is furnished wit-h a spreader K, consisting of a strip of any suitable pliable fabric, preferably unabsorbent, such as sheet india-rubber, one edge cords f attached at one end to the Windlass and passingunder idler-p ulleys g attached to the framing and connected at their other ends to the said frame L. This lever-like frame and hoisting apparatus form a convenient means of introducing a heavy roll of paper into the machine. To accomplish this it is only necessary to lower the outer end of the frame containing the bearings e to a suitable height and to roll the roll of paper along the floor to a position over the said bearings and then to applypower to the hoisting apparatus byhand or otherwise to raise the roll to a suitable height.

For the purpose of applyingtension to the web X the supply-roller B is represented as furnished at one end with abrake-wheel 17, to which friction isapplied by brake-shoes j at the-ends of two levers 10, which are fulcrumed at Z to the frame L, and to which pressure is applied by a spring m arranged between the said levers, the tension :of said spring being controlled by a hand-screwn working through a swivel-nut 0 attached to one of the said levers. 1

The take-up roller 0 is supported in journalboxes affixed ,to the side bars of a swinging frame N, which is secured to a shaft N arranged in fixed bearings in the framing A A of the machine close to the delivery end thereof, the said frame N being soarranged that the said roller with as .much of the web of paper as is wound upon it may rest upon a'driving-cylinder O, the shaft P of which is supported in bearings in the framing A A at some distance from the delivery endof the machineand from the shaft N. The shaft P is represented as furnished with a driving pulley Q, through which it receives motion froma belt R. The take-up movement of the rollerO and the web upon it is effected by the friction of the driving-cylinder 0 upon the rolled-up web on thet-ake-uproller,the swinging frame N rising as the diameter of the rolled-up web increases without any disturbance of the rollerin the journal-boxes of said frame.

To afford facility for the removal of the web from the machine after it has been ruled throughout its whole length, I provide for the swinging of the frame N upward and forward completely over its shaft N to the other side thereof and beyond the framing A A by a train of spur-gearing p q r s. This train consists of a spur-gear 10 on the shaft N, which meshes with a pinion g on the shaft t, the shaft being further provided with a spurgear 1, which meshes with a pinion s on the shaft to, the said shafts t and It being arranged in bearings in the framing A A, the shaft to being capable of being turned by hand or by other means. By this gearing the frame N may be thrown over beyond the framing far enough to bring the rolled-up web, whatever its size, down onto the floor, where the takeup roller C and the web can be easily removed from the said frame by simply rolling them out after unfastening the journal-boxes of the roller.

In the operation of this machine the driving power is transmitted to the printing and impression rollers through the web X of paper, which is being ruled as the said web is drawn from the supply-roller by the action of the take-up, the power being all applied through the driving-cylinder O. The web passes from the supply-roller B first partly around the soft-faced impression-roller F and between the said roller F and the printingroller D and grooved metal impression-roller E, thence partlyaround the said impressionroller E and between thesaid impressionroller and the printing-roller D,thence on over the roller G to the take-up, being ruled on one side by the roller 1) co-operating with the soft-faced roller F and on the other side by the roller D co-operating with the grooved roller E. In this operation the soft-faced roller F besides being-an impression-roller and supporting the web against the printing operation of the roller D performs another important functionviz., that of assisting the web to drive the other impression-roller and the two printing-rollers, the web hugging the soft surface of the said roller F with more friction than it could a metal roller, and therefore driving it with greater certainty, and the rollers E and D being driven more effectively by receiving the web between themselves and the said. soft surface, which slightly yields to their pressure.

In the example of the invention represented in Figs. 1, 2 and 3 the supporting-roller G is provided with any number of circular series of pins or prickers o for the purpose of perforating the ruled web in any number of lines. The perforating operationis effected by the force with which the paper iscaused to press upon thepins or prickers by the tension which is given to it by thefriction-brake on the supply-roller while it is being drawn 'over the said roller G by the take-up roller,

the rotation of the said roller G during this perforating operation being produced in part by the action of the paper on the pins or prickers o and in part by the contact of the paper with the cylindrical surface of the roller G after the pins or prickers have penetrated to their full length. This operation is performed without the aid of any pressing de- Vice orsupport on the opposite side ofthe paper to that at which the pins or prickers enter and without any pressure on the paper but that due to its tension.

When it is not desired to perforate the paper, the roller G may be simply a plain roller, as shown in Fig. 5.

What I claim as my invention is- 1. The combination with two disk rollers for printing on opposite sides of a web, of a grooved impression roller opposed to and supporting one of said disk rollers, a soft faced impression roller separately and directly supporting both the other disk roller and the said grooved impression roller, and a take-up roller on its way to which the web passes between the said grooved impression roller and said soft faced roller and also passes between said other disk roller and said soft faced roller, substantially as herein set forth.

2. In a line printing machine, the combination with a disk roller and an ink roller for inking the same, an ink fountain, a wick for supplying ink from the fountain directly to said ink roller and an ink spreader consisting of a strip of pliable unabsorbent material one edge of which is attached to a fixed support and the other edge of which lies loosely over the said roller at a point beyond the contact of the wick with said roller, substantially as herein set forth.

3. In combination with means of simultaneously moving a web and subjecting it to tension, a perforating roller placed in the path of the web to operate by the movement of the latter and the pressure produced by the tension thereof, substantially as herein described.

GEORGE F. MoADAMS. Witnesses:

FREDK. HAYNES, GEORGE BARRY.

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