US1183338A - Static-electricity dissipator for paper webs or sheets. - Google Patents

Description

H. M. BARBER.

STATIC ELECTRICITY DISSIPATOR FOR PAPER WEBS 0R SHEETS.

APPLICATION FILED MAY 3| I913.

Patented May 16, 1916.

2 SHEETS-SHEET I.

H. M. BARBER.

STATIC ELECTRICITY DISSIPATOR FOR PAPER WEBS 0R SHEETS.

APPLICATION FILED MAY 3,1913- 1 83 338 Patented May 16, 1916.

2 SHEET$SHEET Z- UNITED STATES PATENT OFFICE.

HOWARD M. BARBER, 0F STONINGTON, CONNECTTCUT, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO 0. B. COTTRELL & SONS COMPANY, OF NEW YORK, N. Y., A. OORPORATION OF DELAWARE.

STATIC-ELECTRICITY DISSIPATOR FOR PAPER WEBS OR SHEETS.

Specification of Letters Patent.

Application filed May 3, 1913. Serial No. 765,313.

To all whom it may concern:

Be it known that I, HOWARD M. BARBER, a citizen of the United States, and resident of Stonington, in the county of New London and State of Connecticut, have invented a .new and useful Improvement in Static- Electri'city Dissipators for Paper Webs or Sheets, of which the following is a specification.

My invention relates to improvements in static electricity dissipators for paper webs or sheets, and is directed to that type of dissipator or neutralizer in which the electricity is removed from the web by slightly moistening the same, also providing a static discharge through a moistened wick contact.

The object of this invention is to provide mechanically operated means, such as a governor, under control of the speed of the press, whereby the dissipator and web are brought into coaction when the web is runniililg and out of coaction when the web is sti This invention is directed more particularly to mechanically operated means for moving the web into and out of contact with the 'moistener of the dissipator, while my co-pending application filed of even date herewith, Serial No. 765,312 is more par-' ticularly directed to mechanically operated means for moving'the moistener of the dissipator into and out of contact with the web. If the web be left in contact with the moistener of the dissipator when the-web is still,'the paper would become saturated to such a degree as to materially weaken or break it. This invention is directed to means for avoiding this trouble.

A practical embodiment of the invention is represented in the accompanying drawings in which,

Figure 1 represents in side elevation so much of a folding machine as will give a clear understanding of the construction, lo cationand operation of the several parts of my static electricity dissipator, the parts being shown in full lines in the position which they assume when the web is running and in dotted lines in the position they assume when the web is still, and Fig. 2 is a transverse section taken in the plane of the line AA of Fig. 1.

The web 2 is shown as passing around a series of rolls 3, 4, 5, 6, on its way from the printing press, not shown, to the formers 7 of the folding machine. The rolls 3 and 4 are located upon the same side of the web 2, and are mounted in oppositely arranged pairs of arms 8, 9, of a compensating lever pivoted at 10 in the main frame 11. The compensating lever is so mounted that the rocking of the lever will move the positions of the rolls 3 and 4: to change the path of the web 2, tension.

The moistening wick of the dissipator is denoted by'12, and its fountain by 13, which fountain is supported in'the main frame 11. Liquid is supplied to the fountain'13, from a stationary reservoir 14 mounted on a bracket 15 secured to themain frame '11, through a feed pipe 16 having a suitable controlling cook 17 Automatically operated means under the control of the speed of the press, is provided for operating the compensating lever to move the web into and out of contact with the moistening wick 12. This mechanically operated .means includes a governor 18 and the compensating lever 8, 9, operated thereby. The movable element 19 of the governor is connected to one arm 20 of a lever pivoted at 21, the other arm 22 of which lever is connected by a rod 23 to an arm 24: of the compensating lever. The governor 18 is herein shown as operated through a train of gears 25, 26, 27, 28, 29,

30, 31, 32, 33,34, driven by any suitable means, not shown, from the press. The arm 22 of the lever 20, 22, is provided with an adjustable counterbalance weight 35 to hold the compensating lever 8, 9, normally in its position to keep the'web out of contact with the dissipator. A ground wire 36 leads from the fountain 13.

In operation, when the press and thereby the web is still, the governor holds the compensating lever in a position to bring the web out of contact with the moistening wick 12. As the press is started, it will when its speed reaches a predetermined point, operate the governor 18 to cause it to rock the compensating lever in a direction to bring the web 2 into contact with the Patented May 16, 1916. I

without changing its moistening wick 12. When the speed of the press falls below a certain point, the web will be moved away from its contact with the wick.

It is obvious that the mechanically operated means shown herein for automatically bringing the web into and out of coaction with thedissipator is one of many different forms which might be shown for accomplishing this result; hence I do not Wish to limit myself to the particular means herein shown and described.

While I have shown this invention in connection with a running web, it is to be understood that I wish to include sheets as well.

What I claim .is:

1. A static electricity dissipator for webs including a moistener and mechanically operated means controlled by the speed of the press for autogtically moving the web into and out of contact with the moistener.

" 2. A static electricity dissipator for webs opera ted means controlled by the speed of and mechanically operated means for autoqnatically bringing the web and dissipator into and out of coaction, said means including a compensating lever having de-' vices engaging the web for changing its direction without changing its tension.

5. A static electricity dissipator for webs and mechanically operated means controlled by the speed of the press for automatically bringing the web and dissipator into and out of coaction, said means including a compensating lever having devices engaging the web for changing its direction without changing its tension. I

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two WItIIGSSGSftlllS twentyfourth day of April 1913.

HOWVARD M. BARBER.

' Witnesses: F. GEORGE BARRY,

C. S. SUNDGREN.

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