US1301969A - Web-printing device. - Google Patents

Description

R. Q. PLASS.

WEB PRINTING DEVICE. APPLICATION FILED ocr. 2. 1917.

1,301,969., Patented Apr. 29, 1919.

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R. H. PLASS. WEB PRINTING DEVICE. APPLICATION FILED OCT. 2. I917.

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Patented Apr. 29,1919.

v I/I/VE/VTOR BY U/ m ATTORNEY mg NoRrus pzrsns 6a., Fuom- 11w %TE FAENT FFQEO ROBERT H. PLASS, OF UPPER MONTGLAIR, NEW JERSEY, ASSIGNOR TO THE RIEGEL SACK COMPANY, OF NEW YORK, N. "521, A CORPORATION OF NEW JERSEY.

WEB-PRINTING DEVICE.

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Specification of Letters Iatent.

Patented Apr. 29, 11919..

Application filed October 2, 1917. Serial No. 194,301.

To all whom it may concern:

Be it known that I, Bonner H. PLAss, a citizen of Germany, residing in the city of Upper Montclair, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Web-Printing Devices, of which the following is a full, clear, and exact specification.

My invention relates to web printing devices and refers particularly to a device whereby impressions may be printed upon a continuous web at predetermined distances from each other, irrespective of the diameter of the printing rollers.

One object of my invention is a device whereby printed impressions may be made upon a web at predetermined distances from each other.

Another object of my invention is a device whereby printed impressions may be made upon a Web at distances irrespective of the diameter of the printing roller.

Another object of my invention is a device in which a printing roller may be employed to produce printed impressions upon a web at any predetermined distance from. each other.

Another object of my invention is a web printing device which is capable of printing impressions at varying distances from each other.

These and other objects of the device of my invention will be evident upon a consideration of my specification and claims.

In the generally employed methods of printing upon webs, the type or other printing means are aflixe'd'to the outer surface of a revoluble roller or cylinder, the web passing between said roller and a platen. In this manner the web receives a printed impression upon each revolution of the roller, and hence the impressions are equally distant from each other, the distance between them being represented by the circumference of the roller.

It is frequently desirous to print the impressions at a distance from each other greater than the circumference of the printing roller, this requirement being particularly important where the web is afterward cut into desired lengths, as in the production of bags.

In the machines described above the distance between the printed impressions is a .65 fixed one dependent upon the circumference of the printing roller and hence a print ing roller of definite circumference must be employed in the printing of bags of each particular size in order that the impressions may be uniformly printed upon all of the bags, and as all of the other component parts of the machine are in uniformity with the printing roller, a separate machine is necessary for use uponeach class of work.

I overcome this serious difiiculty by presenting a machine, that will permit impressions upon a web at any predetermined distance from each other irrespective of the size of the printing roller, thus allowing the one machine to be used in the printing of bag-webbing for any desired size of bags.

The advantages of the device of my invention and its economical production of web printing as regards labor, time, space and rapidity of out-put are evident upon a consideration of my specification.

In a broad way my invention comprises a device wherebyany predetermined length of the web may be drawn past the printing roller during the neutral or non-printing period of the roller, thus allowing the printed impressions to be separated from each other by a distance greater than the circumference of said roller.

In the accompanying drawings representing one form of the device of my invention, similar parts are indicated by similar numerals.

Figure 1 is a side view of a device of my invention.

Fig. 2 is a front view in the direction of arrow 2 of Fig. 1.

Fig. 3 is a cross-section through the line 3 3 of Fig. 2.

Fig. 4: is a cross-section through the line 44 of Fig. 3.

Fig. 5 is an enlarged side view of the grippin device, shown gripping the web.

Fig. 6 is a cross-section through the line 6-6 of Fig. 3.

In the particular form of the device of my invention, illustrated in the accompanying drawings, the spur-gear 10 is fixedly attachedto the shaft 11 and is connected to a source of revoluble power not shown. The spur-gear 10 meshes with the spur-gear 12, fixedly attached to the revoluble shaft 13, carrying the roller 14 fixedly attached thereto. The spur-gear 12 meshes with the spurgeel' l5, fixedly attached to the revoluble shaft 16 carrying the roller 17 fixedly attached thereto. The spur-gear 15 meshes with the spur-gear 18 fixedly attached to the revoluble shaft 19, and with the spur-gear 21 fixedly attached to the revolu'ble shaft 22 carrying the fixedly attached roller 23. The spur-gear 18 meshes with the spur-gear 24 fixedly attached to the revolubleshaft 25. carrying the fixedly attached roller 26.

The spur-gear 24 meshes with the spurgear 27 fixedly attached to the revoluble shaft 28 carrying the fixedly attached roller 29. An idler 30 is fixedly attached to the revoluble shaft 31. Two rods 33, 33, carried by brackets 34, 34, serve as a means for holding the web in a taut condition as will be explained later. An idler 35 fixedly attached to the revoluble shaft 36 is supported by the frames 37, 37. An idler 38 fixedly attached to the revoluble shaft 39 is support ed by the frame 40, 40. Supporting bars 41, 41 are fixedly attached to the frames 40,40 and 37 37 by means of the brackets 42, 42. The spur-gear 1O meshes with the spur-gear 43 fixedly attached to the revoluble shaft 44, which carries the spur-gear 43; the spurgears 43, 43 being meshed with the spurgears 45, 45 fixedly attached to the stubshafts 46, 46. Fixedly attached to the shafts 46, 46 are the extension plates 47, 47 having the slots 48, 48. Revolubly carried by the extension plates 47, 47 and within the slots 48, 48 are the shafts 49, 49 to which are fixedly attached the bars 50, 50. The bars 50, 50 are revolubly attached to the shaft 51, to which is fixedly attached the grip jaw 52 carrying the rubber strip 75, the grip jaw 52 is integral with the members 53, 53 which are slidable over the rods 41, 41. A gripping member comprises the member 54 carrying the grip jaw 55 and the trip 56 both being fixedly mounted upon the rock shaft 57. The grip jaws 52 and 55 are maintained in a gripping position with respect to each other by means of the spring 58. A pawl 59 is carried by the member 53, the pawl 59 having the offset 60 to engage the gripping member 54 to hold it from engagement with the grip jaw 52, and th stop extension 61. Attached to the frame 37 is a plate 62 having the slot 63, in which the trip-catch 64 is capable of being fixed at varying positions within the slot 63.

Pivotally attached to the frame 40 at 65 is the rock arm 66, one end of which carries the rev'oluble wheel 67 abutting upon and removable over the arm 59, the other end of the rock arm 66 carrying the revoluble Wheel 68 abutting upon and movable over the cam 69 which is fixedly. attached to the shaft 25. F ixedly attached to the rollers 23 and 29 are respectively the impression or printing means 70 and 71. In the machine illustrated, which is a two impression machine, the ratio of the spur gear 45 to the spur gear 24 is 1 to 4, but it is evident that this ratio may be changed to meetthe particular requirements.

The operation of the device is as follows The web 100 is placed in folded form upon the table 72 and passed through the device as indicated in Fig. 1. The drive gear 10 is then revolved which imparts rev'oluble motion to the train of gears as described above and as indicated by the arrows upon the drawings. Motion of .the web through the device is accomplished by any suitable pulling means, exterior of th device, such means not being shown in the drawings. As the web passes between the printing means 7 0 upon the roller 23 and the platen 17 it receives a printed impression, it then passes between the printing means 71 upon the roller 29 and the platen 26 receivin another printed impression. The cam 69 1s so situated that when the two printing means 7 O and 71 have revolved from contact with the web 100, thus leaving a space between the roller 23 and the platen 17 and the roller 29 and the platen 26, the wheel 68 will revolve upwardly thereon, forcing the roller 67 downwardly, releasing the catch 59, the spring 58 causing the grips 5 2 and 55 to seize the web, as shown in Fig. 5, which is then pulled rapidly downwardly and through the rollers 23 and 29 and the platens 17 and 26 by means of the downward movement of the arms 50, 50. This downward movement continues until the trip 56 strikes the trip catch 64, forcing the trip upwardly causing the grip 54 to be forced outwardly, the catch 59 dropping downwardly until the grip 54 is engaged with the inset 60, thus holding the grips 52 and 55 from engagement with each other and allowing the free movement of the web therethrough. The gripping members 52 and 55 will remain in disengagement with each other, allowing their movement upwardly and downwardly without gripping the web until the cam 69 has revolved into the position where it again raises the roller 68 of the rock arm 66. The length of the downward stroke may be fixed by changing the length of the arms 50, 50 through the medium of the set screws 80, and by changing the position of the members 49, 49 in the slots 48, 48. When the gripping means has been released from the web and the drag thereof has discontinued, the printing means 70 and 71 have revolved in position for proper printing.

It is evident from the above that by means of my device the web may be printed and then any predetermined amount of web may be withdrawn before the next printing impression, thus allowing the production of printed impressions at distances from each other independent of the size of the printing rollers.

I do not limit myself to the particular size, shape, number or arrangement of parts as shown and described, all of which may be varied without going beyond the scope of my invention as described and claimed.

What I claim is 1. In a web printing machine, in combination, a revoluble web printing means, means for revolving the printing means at a uniform speed during printing and non-printing periods and means whereby a continuously moving web will be gripped and an increased amount thereof withdrawn between the periods of printing.

2. In a web printing machine, in combination, a revoluble web printing means, means forrevolving the printing means at a uniform speed during printing and non-printing periods, means whereby the printing means will produce impressions upon a continuously moving web and gripping means whereby the distance between the impressions can be varied.

3. In a web printing machine, in combination, a revoluble cylinder having a printing surface upon a portion of its perimeter, means for revolving the cylinder, and gripping means for accelerating the movement of a continuously moving web during nonprinting periods.

4. In a web printing machine, in combination, a revoluble cylinder having a printing surface upon a portion of its perimeter, means for revolving the cylinder, and

gripping means whereby varying and predetermined lengths of a continuously movating the movement of a continuously moving web during non-printing periods.

5. In a web printing machine, in combination, a revoluble cylinder having a printin surface upon a portion only of its perimeter, means for revolving the cylinder, a revoluble cylindrical platen, means for revolving the platen, and gripping means for accelerating the movement of a continuously moving web during non-printing periods.

6. In a Web printing machine, in combination, a revoluble cylinder having a printing surface upon a portion only of its perimeter, means for revolving the cylinder, a revoluble cylindrical platen, means for revolving the platen, the printing cylinder and the platen being so situated oircumferentially as to allow of a space between the surface of the cylinder and the surface of the platen, and gripping means for varying the length of a continuously moving web drawn from between the printing cylinder and the platen during non-printing periods.

7. In a web printing machine, in combination, a revoluble cylinder having a printing surface upon a portion only of its perimeter,

, means for revolving the cylinder, a revoluble cylindrical platen, means for revolving the platen, the printing cylinder and the platen being so situated circumferentially as to allow of a space between the surface of the cylinder and the non-printing surface of the platen, means for gripping a continuously moving web synchronized with the nonprinting periods and means for moving the gripping means a predetermined distance acelerating the movement of the web and drawing a predetermined length of web from between the printing cylinder and the platen during non-printing periods.

8. In a web printing machine, in combination, a revoluble cylinder having a printing surface upon a portion only of its perimeter, means for revolving the cylinder, a revoluble cylindrical platen, means for revolving the platen, the printing cylinder and the platen being so situated circumferentially as to allow of a space between the surface of the cylinder and the non-printing surface of the platen, means for gripping a continuously moving web synchronized with the nonprinting periods,means for moving the grip ping means a predetermined distance accelerating the movement of the web during a non-printing period, means for releasing the gripping means and means for allowing the web to pass freely through the released gripping means until the next non-printing period.

Signed at Jersey City in the county of Hudson and State of New Jersey this 27th day of September, 1917.

ROBERT H. PLASS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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