US1304693A - Strip-serving device - Google Patents

Description

J. D. McL AURlN.

STRIP SERVING DEVICE.

APPLICATION FILED JAN. 6. 191a. RENEWED sEPT.25, i918.

1,304,693. Patented May 27,1919.-

UNITED sT 'rEs PATENT OFFICE.

JAMES nONALnMeLAUnIN, OF SOUTH ORANGE, NEW JEnsEnfAssIcNOn TO NATIONAL BINDING MACHINE COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

Specification of Letters Patent. Patented 27, 1919.

Application filed January 6,1913, Serial No. 740,352. Renewed September 25-, 1918. Serial NO. 255,701.

T 0 all whom it may concern:

Be it known that I, JAMES DONALD Mo- LAURIN, a subject of the King of Great Britain, and a resident of South Orange, in Essex county, State of New Jersey,.have invented an Improvement in Strip-Serving Devices, of which the following description, in connection with the accompanying draw.- ings, is a specification, like letters on the drawings representing like parts.

The present invention relates to improvements in strip serving devices. One object of these improvements is to provide a construction in which it shall be very simple to place the tape or strip in operative position in the machine. It sometimes happensthat the tape or strip, where it is made of paper, will break; and it is therefore desirable that some easy and quick recourse may be had for fixing the tape in position again in its proper relation for further use. It is of course equally desirable to make themachine simple to thread inthe first instance. Another object ofithe inventionis to prevent the moistened end of the strip, after severance, from sticking to the adjacent parts of the machine. Still another object of the invention is to provide a moistening roll having a hard periphery or moistening surface and at the same time one that will pick up sulficient water as it rotates in the water tank. And, finally, one further object of the invention is to prevent the ungummed side of the tape from becoming wet from the wa ter on the roller that presses the tape against the moistening roll. 7

In the accompanying drawings, in which the machine is illustrated,

Figure 1 is a view in side elevation, partly broken away,

Fig. 2 is a similar viewwith the position of the parts as they appearwhen the tape or strip is being drawn out,

Fig. 3 is a view in perspective with the oscillating saddle removed, and,

Fig, 4 is a detail view in elevation'of the roller in the machine which presses the tape downupon the moistening roll.

It will be understood that machines of the character referred to have means for supporting a roll of tape which is generally gummed on one side, means for moistening the gummed side of the tape, means for guiding the tape from the roll to the moretener, and means for severing the tape. In

the present case, the roll of tape' a is supported upon a spindle b withinahousing a which is mounted upon the frame, 03 of the machine. The tape issues from a small slit in the housing" and is delivered underneath an Oscillating saddle or frame e and thence over the moistening roller f. When a sufficient length of strip has been drawn out and moistened, it is severed by bringing it up against the knife edge 9.

In the present case the rocking ofthe saddle e, which is caused by the draft on the tape, serves to bring a-rollerh onzthe' saddle down upon the tape to holdit in close engagement with the moistening roll as it is being drawn out; and, when; the draft pressure is released, the saddle moves back againcarrying the tape with it away from the moistening roll.-. For this purpose, the saddle is provided with a relatively heavy weight 11 at one lend, the pressure roller h at the other end and another roller k between and below the weight 2' and the roller h. The strip of tape passes underneath the weight z and roller is; and,,as is obvious, the pull upon the tape in drawing it out and moistening the same serves to lift; up the weight 2' and thus rock thesaddle and bring the roller it down upon the tape so as to press it against the moistening roller f, the saddle being pivoted at Z. 7

Upon release of the draft 'pressureon the tape, the weight i causes the saddle to, rock back again. When this takes place, a pair of projections m, one upon each end of the saddle, operates to lift still another roller or against the under or gummed side of the tape, the continued movement of the saddle and roller a carrying the tape away from the moistening roller f. 'To permit this, the roller n is mounted in slotted guides 0 formed in the two parallel side p p which support the moistening rollei g -the latter dipping into a pan of water ari'efiifged between the plates as shown. i

The saddle itself is pivoted in T the p on a cross bar Z which extendsfio-m one end of the saddle to the other, each of the plates 59 beingformed with a. notch (shown clearly in Figs. 1 and 2) into which the bar Z is fitted. With this arrangement the saddle can be easily removed whenever it is necessary to thread the tape into the machine. .In such an instance, all that is required to be done is to remove the saddle by drawing the bar ends out of the notches in the plates p, lay the tape gummed side down across the roller a and over the moistening roll f (Fig. 8) and then replace the saddle again in the notches upon the machine. In this way, the tape is not required to be threaded into the machine by a clumsy, slow and more or less difiicult operation.

hen the tape has been lifted out of contact with the moistening roller, it will rest in the position shown in Fig. 1, until the machine is to be used again. In this position, the roller n supports the end of the tape, pressing, as it does, hard against the gummed side thereof. As the tape, in this position, is nearly vertical, there is tendency for such free water as may be left on the end of the tape, to run down as far as the roller 92, with the result that the gum is moistened. This would tend to freeze the tape fast to said roller if the latter had a smooth periphery. To avoid this, said roller is provided with a number of peripheral flanges s (Fig. 3) which bring itabout that the tape only touches the roller n at a few points although the latter is held hard against it. These flanges present relatively sharp edges to the tape in order that the surfaceof the flanges in contact with the gum shall be as limited as possible; and for this reason it is objectionable for the flanges to remain in contact with the tape as it is being pulled out, because the tape would be drawn over them while under tension and would be liable to become out or at least creased. It is for this reason chiefly that the roller n is mounted in slotted bearings so that upon the draft, it may drop down out of the way.

The roll h, as shown in Fig. i, has the continuity of its surface brokenby having a plurality of peripheral grooves cut therein. In this way, whatever water is transferred to the ends of this roller from the moistening roll, during contact between the two while the tape is being drawn out, will not run back into the middle of the roller h and thus wet the back or ungummed side of the tape, the grooves obviously preventing any such action.

In machines of this kind, it has been customary to provide the moistening roll with a covering of fabric in order to provide a yielding moistening surface adapted to pick up and carry water. as the latter rotates in the pan. These moistening fabrics or felts, or whatever medium Was used, have been found to be very undesirable on account of becoming clogged with gum whereby they would not only get dirty and unsanitary but would almost entirely lose their absorbent quality and consequently their moistening efliciency. On this account, rollers with a hard periphery or moistening surface impervious to moisture are preferable; but it has been found difficult in practice, to provide such a moistening roll and at the same time have it pickup water enough asit rotates in the pan, to thoroughly moisten the tape. T o avoid this difficulty, I have discovered that the moistening surface upon these rollers may be roughened slightly, as by rough-turning the periphery in a lathe or milling the same or the like. In this way, the operation of the moistener gives a very effective and satisfactory moistening.

I claim as my invention:

1. In a strip serving machine, the combination of a moistener, a movable member actuated bythe draft on the strip to press the latter against the moistener, means to move said member back again upon release of draft pressure, and a member formed with relatively sharp projections for contact with the gummed side of the strip and movably mounted adjacent to the moistener, said last named menrberbeing actuated by said first named member upon the latters return movement to move and hold the strip away from the moistener.

2. In a strip serving machine, the combination of a moistener, an oscillating saddle actuated by the draft on the strip to press the latter against the moistener, the said saddle being removable from the ma chine, a flanged roller intermediate the moistener and the saddle and having slotted bearings, and means on the saddle to engage the roller whereby the latter moves back and forth in its bearings as the saddle oscillates.

In testimony whereof, Ihave signed my name to this specification, in the presence of two subscribing witnesses this 3rd day of January 1913.

JAMES DONALD MQLAURIN.

Witnesses:

LUGIUS E. VARNEY, MANVEL l/VHiT'rnMoRn.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

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