US1944946A

US1944946A - Static eliminator and ink drier for printing presses

Info

Publication number: US1944946A
Application number: US556396A
Authority: US
Inventors: Anton G E Nordquist
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-08-11
Filing date: 1931-08-11
Publication date: 1934-01-30
Anticipated expiration: 1951-01-30

Description

- v W 38 v 2 7 7 35 40 Jan. 30, 19340 I I A. a. E. NORDQIUIST 1 1,944,946

STATIC ELIMINA'I'OR AND INK DRIER FOR PRINTING PRESSES Filed Aug. 11. 1931 -2 Sheets-Sheet l INVENTOR FTG. l. i a -5W ATTORNEY Jan. 30, 1934. A. GQE. NdRDQUlST 1,

' STAT-I0 ELIMINATOR AND INK DRIER FOR I RINTING PRESSES Filed Aug. 11. 1931 2 Sheets-Sheet 2 INVENTOR aa fkzww Patented-Jan. so, 1934 STATIC ELIMNATOR AND INK DRIER FOB PRINTING PRESSES Anton G. E. Nordquist, Denver, Colo. i Application August 11, 1931. Serial No. 556,396

12 Claims.

My inventionrelates to printing presses and more especially to a device for the elimination of static electricity from the sheets of paper as they are being run through-the press and for the quicker drying of the ink printed upon said sheets. In printing presses, especially in the modern high speed presses, much trouble is experienced from the papers becoming charged with static electricity which makes it cling to the traveling tape and other parts of the presswith which it may come into contact.

To overcome this static action a gas flame has been used, which flame is below or above and contacts the printed sheet of paper. To prevent the paper from being burned when the press stops the gasis ordinarily fed to the burner through an automatic controller driven by chain, gear, or shaft from the press. The burner is provided with a pilot light independent of the controller. When the press stops the controller automatically shuts 011 the gas from the main burner; when the press again starts, the controller opens the valve to the main gas burner and the gas thus fed to the burner is ignited by the pilot light. Thus whenever the press is running the main gas flame is provided, and whenever the press stops the pilot light only continues to burn.

The heat from the gas flame, nevertheless, is quite localized and is not distributed along the line of travel of the paper, and the margin of safety for the paper and for the moving tape is not very large. That is, since the flame is in contact with the moving paper it is easily scorched or baked by a variation in flame, paper speed, the paper itself, the gas pressure, so that it tends to crack' when folded in the folding devices used. p

In some methods now used a gas burner encased in a metal shield is mounted at the extreme front of the press; the paper slides over this shield which often becomes so hot that the paper is baked or scorched that it cracks when folded. In some cases the gas flame is mounted to travel back and forth with the delivery means, which requires a large flame to prevent its being blown out by the movement.

The object of this invention, therefore, is to provide in a printing press, equipped with a gas flame static eliminator, means for the distribution of the heat of thegasflame to make a greater margin'of safety for the paper and for the moving tape and to distribute the heat from the gasflame to the best advantage for drying the ink on the printed paper, without baking or line 6-6 of Figure 2.

scorching the paper whereby it will be left in substantially its former and natural condition.

A further object is to provide means for gas flame-heat distribution whereby in bad cases of the presence of static additional gas flames may be used without burning the paper or the moving tape.

A further object is to provide static elimination means for a printing press whereby the heat from stationary flames may be. used and distributed properly and smaller flames thereby employed than would be required were the flames to move back and forth with the movement of parts of the press.

A further object. is to provide such means 7 which may be easily mounted upon a press after its manufacture.

A further object is to provide such means I which are adjustable to give the proper amount of heat distribution and dissipation to fit diiferent'conditions that may be encountered.

I accomplish the above objects by providing a plurality of fans to be mounted upon and driven by the press, and which are adjustableboth in speed and in direction of air blast, and by providing an adjustable deflector to properly deflect the air blast from the fans upon the paper passing through the press, together with means for mounting the deflector upon the press.

I prefer to use two or more smaller flames 5 rather than one large flame since when providing the same total amount of heat the maximum temperature will be lower with the greater number of flames.

This heat, which would otherwise be wasted through lack of being properly directed, I use to dry the ink and to further eliminate static by projecting it along with the travel of the paper. This is done bythe fans and the deflector, the result being a reduction of the friction between the moving paper and the contacting air, since the air is made to move with the paper. All of this is fully described below and is illustrated in the drawings,in which;

Figural is a fragmentary sectional side view of a printing .press provided with my device.

Figure 2 is a sectional view on the line 22 of Figure 1. v Figure 3 is an enlarged detail of my fan and. my adjustable fan mounting. I

Figure 4 is a view on the line 4-4 of Figure 3. Figure 5 is a fragmentary sectionalview on the line 55 of Figure 3. I

Figure 6 is a fragmentary sectional view onthe Figure 7 is a fragmentary plan view of Figuse 1.

The deflector 1, which is shown as metal may be made of any other proper material, is provided with the mounting rods 2, clamped to the deflector by the U-bolts 3, and nuts 4.

The rods 2 are mounted in any proper manner on the c-clamps 5, the c-clamps being clamped to the cross rod 6, or to any other convenient and proper part of the printing press 7 by the clamping screw 8. Any other proper method of connection between the C-clamps 6 and the deflector 1 may beused; or any other proper method of mounting the deflector 1 upon the. press may be used, so long as the result is a proper and reliable mounting.

The free end of the deflector 1 is positioned and supported by a plurality of support rods 9, which are properly mounted upon c-clamps 10,

.the C-clamps 10 being clamped upon the cross rod 11, or upon any other convenient and proper part of the press 7 by the clamping screw 12.

By adjustment of the

screws

8 and 12 and the C-

clamps

5 and 10 the deflector 1 may be adjusted to and maintained at any desired angle for the proper deflection of the air blast from the fans 13 downward upon and along the paper 14.

, Any other proper method and construction by which the deflector 1 may be mounted, adjusted and maintained atthe proper or desired angle may be employed so long as it is reliable and properly adjustable, whereby the deflector may be set and maintained in the desired position. And any other proper position upon the press '7 for the deflector further removed from the fans and the flame may be selected if desired.

The pulley bracket 15 is clamped upon the cross rod 16 or upon any other proper and con-- venient part of the press '7 by means of the cap I and screws 18. This clamp mounting of the pulley bracket 15 permits the bracket to be set at any desired angle about the rod 16.

The bracket 15 carries the pulley shaft 19 upon which is properly secure the pulley 20 and the step pulley 21.

The step pulley 22 is split and is held clamped tightly inplace upon the shaft 24 of the press '7 by the screws 23. The shaft 24 is to be one or the revolving shafts of the press 7.

The belt 25 is mounted upon the

pulleys step

22 and 21 and permits the speed of the shaft 19 with respect to that of the shaft 24 to be adjustable within quite wide limits, the belt length being changed if necessary when the position of the bracket 15 is changed upon the rod 16.

The fan bracket 26 is mounted upon the bracket 15 and its position upon the bracket 15 is adjusted as desired and locked by means of the thumb screw 2'7. The pulley shaft 28 is properly journaled in the fan bracket 26 and upon it is properly secured the pulley 29 and the bevel gear 30.

The belt 31 is carried by the pulleys-20 and 29.

The bevel gearhousing 32 properly journals the fan shaft33 and upon it is properly secured the fan 13 and the bevel gear 34.

The fan housing 32 is adjustably mounted upon the fan bracket 26 by the screws 35, which pass through the slots '36 and screw into the bracket 26. This adjustment permits the- Ian 13 adjustment of its angle in addition to that pro 'vided about the rod 16.

The drive for the Ian 13 is taken from the shaft 24 through the step pulley 22, the belt 25 to the step pulley 21, through the shaft 19 to the pulley 20, through the belt 31 to the pulley 29, throughthe shaft 28 to the gear 30, through the gear 34 and the shaft 33 to the fan 13.

The speed of the fan with relation to the speed of the press may be'adjusted by the step pulleys 22 and 21.

And the angle of the air blast from the fan 13 may be adjusted about the rod 16 and locked by the screws 18; or about the bracket 15 and locked by the thumb screw 27; or about the shaft 28 and locked by the screws 35.

Other fans (not shown) may, if desired, be similarly mounted and driven to put a blast of air upon the paper and upon the moving air after it has passed out from under the deflector. A fragment of the belt 25 for one of such fans is shown in the drawings.

Thus, by a combination of adjustments of the fans and of the deflector it is possible to so control the air blast from the fans that the desired results may be obtained to fit substantially any set of conditions of paper, ink, speed, and gas flame.

It will be noted that the gas flame 37 is provided with the pilot feed line 38, and the main feed line 39, which is controlled by the automatic main feed line shut ch 40. operated in step with the press 7 by the chain 41, or by any other positive drive construction.

Should static conditions be such that more than one gas flame is required, the flame, such as shown at 43 may be employed in addition to the flame 37, and by similar pilot and main feed lines and with-.a similar automatic main feed line control; or the pilot feed line 44 from the pilot feed line 38 may be employed, and the main feed line 42 from the line 39, and controlled by the controller 40, if desired.

In any case, the additional heat provided by the second flame for drying the ink or for elimination of static, or for both, may be taken care of without damage to either the paper, or the moving tape, by properly adjustment of the angles and positions of the deflector and the fans and by proper adjustment of the speed of the fans; all as explained above.

Under some conditions, and with large presses, it may be found advisable to use several more gas flames, either above or below the paper or both above and below the paper, and to provide several additional fan and deflector installations. But such constructions are only a multiplication of what is herein shown and described and which any man versed in the art will understand and appreciate without further illustration or description here.

But, whatever details may be varied the main essentials will be the same in that my device provides additional control of both static electricity and the drying of the ink, and the proper and safe distribution of the gas flame heat.

Having now described my invention, what I claim as new, and desire to protect by Letters Patent, is as follows:

1.-In combination with a printing press, paper conveying means carried by the press, fans mounted upon the press to blow air downward toward and in the direction of travel of the moving printed paper, step pulleys carried by the fans and by the press, and belts driving the fan pulleys by the press pulleys, whereby the set ratio of fans and press may be varied, press-controlled gas burners adjacent the moving printed paper, and a deflector carried by the press to deflect the hot air rising from the flames oi the gas burners as impelled by the fans along with the printed paper.

2. In combination with a printing press, paper conveying means carried by the press, press controlled gas flames adjacent the moving printed paper, press driven fans to blow the hot-air from the flames along in the direction of travel of the printed paper with a set relation between the speed of the fans and the speed of the paper, and a deflector to direct the blown hot aid down upon the moving paper.

3. In combination with a printing press, paper conveying means carried by the press, a gas burner having a pilot light and a press-controlled valve controlled to open and close as the pressstarts and stops respectively, the burner located adjacent the moving printed paper, fans driven by the press to blow air down upon and in the direction of travel of the printed paper in a set relation to the speed of travel of the paper and a deflector to deflect the blown hot air down upon and cause it to move parallel to the'moving printed paper.

4. In combination with a printing press, paper conveying means carried by the press, stationary press controlled gasburners adjacent the moving printedpaper, fans carried by the press to blow air down upon and in the direction of travel of the moving printed paper in an amount which is proportional to the speed-of travel of the paper, and a deflector carried by the press to deflect the blown hot air down upon and along parallel with the moving printed paper.

5. In combination with a printing press, paper conveying means carried by the press, stationary press controlled gas burner means adjacent the moving printed paper, fans carried by the press to blow air down upon'and in the direction of travel of the moving printed paper whereby the air heated by the gas flames will be moved along with the printed paper with a speed proportional to that of the paper, and a deflector carried in the path of the blown air to direct it downward upon and substantially parallel to the printed moving paper. I

' 7. In combination with a printing press, paper conveying means carried by the press, heating means adjacent the moving printed paper, press ,operated means to move the air heated by the said heating means along with the moving paper conveying means carried by the press, press controlled gas flames adjacent the moving printed at a speed proportional tothat of the paper to reduce the friction between the paper, and the adjacent air and thereby prevent i'ormation of static, whereby the heated air will be moved at a speed having a definite relationship to the speed oi the press and deflecting means to deflect said moving heated air downward toward the moving paper and to cause it to move substantially there with.

8. In combination with a printing press, paper conveying meanscarried by the press, press controlled gas burner means adjacent themoving printed paper, tans carried by the press having step pulley drives, step pulleys carried by the press, and belts joining the press pulleys to drive the fan pulleys and to thereby cause the fans to blow air heated by said burner means downward and in the direction of travel of the moving printed paper and at a speed in set relationship to the speed 01 the press, whereby the speed of the said air in relation to that of the moving paper may have a set ratio and which ratio may be changed.

9? In combination with a printing press, paper mg bumer located adjacent the moving printed paper, fans driven by the press to blow air down upon and in the direction of travel of the printed paper in a set relation to the speed of travel of the paper. i

ll. In combination with a printing press, paper conveying means carried by the press, stationary press controlled gas burners adjacent the moving printed paper, fans carried by the press to blow air heated by said burners down upon and in the direction of travel of the moving printed paper in an amount which is proportional to the speedoi travel of the paper, and with a velocity having a-set relationship to that of the paper.

12. In combination with a printing press, paper conveying means carried by the press, stationary press controlled gas burner means adjacent the moving printed paper, fans carried by the press to blow .air heated by said burner down upon and in the direction 01 travel of the moving printed paper whereby the air heated by the gas flames will be moved along with the printed paper'with a speed in an amount proportional to that of the P p r. ANT ON G. E. NORDQUIST.