US899742A

US899742A - Rotary folding mechanism for printing-presses.

Info

Publication number: US899742A
Application number: US42680808A
Authority: US
Inventors: Hubert Lang
Original assignee: Goss Printing Press Co Ltd USA
Current assignee: Goss Printing Press Co Ltd USA
Priority date: 1908-04-13
Filing date: 1908-04-13
Publication date: 1908-09-29
Anticipated expiration: 1925-09-29

Description

H. LANG. ROTARY FOLDING MEGHANISM FOR PRINTING PRESSES.

yA12lLlfLALTI0N FILED APR. 13, 1908. I l l Patented Sept. 29, 1908.

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H. LANG., y ROTARY FOLDING AMECHANI'SM FOR'J'RIlVI'flNGrl PRESSES.

APPLIoATioN FILED APE. 13,1908.

Patented Sept.29, 1908.

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H. LANG.

l ROTARY FOLDING MEGHANISM PQR. PRINTING PRESSES.-

' APPLIOATION FILED un. 1a, 190s.

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UNITED vsTATns PATENT oni-non.

HUBERT LANG, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE GOSSl PRINTING PRESS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

ROTARY FOLDING MECHANISM FOR PRINTING-PRESSES.

Specification of Letters Patent.

Patented sept. 29, 190s.

Application i'lecl April 13,' 1908. Serial No. 426,808.

in which the' folding blade in arotary car-v rier is operated from normal position into operative position and out of operative position into normal position by a moving guide, which, While traveling in the -same direction with the folding blade, acts upon it to move it into and out of operative position; and itsA object is to provide new and improved mechanism by which the folding blade may be operated without any blow or violent contact of parts, thereby increasing the speed at which the blade maybe operated. v

In the accompanying drawings z-Figure l is an end view with a portion of the framework removed to show the parts. Fig. 2 is an end view, showing the carrier, folding blades, and operative parts in other positions. Fig. 3 is a side elevation. Fig. 4 is a detail, being a view of the gear and operating guide thereon.

5 indicatesl a rotary carrier of the ordinaryv form and construction which is mounted on a shaft 6 journaled in a suitable framework, as 7. The rotary carrier is preferably constructed to cooperate with the rotary cutting cylinder 8, and to that end is provided with grooves 9 which are designed to cooperate with the knife 10 on the cutting cylinder 8.

4The carrier 5 is also provided with the usual impaling pins 11 which may be of any wellknown form and `construction and operate in any well-known manner and hence are only conventionally illustrated.

12-12 indicate folding rollers which are mounted below the rotary carrier 5 in a suitable portion of the framework, as 7a, and are operated in the well-known usual manner.

13-13 indicate shafts which are journaled in suitable bearings, as 14, in the rotary carrier 5, and, 11i-the construction shown, are,

two in number diametrically opposite one another.

15 indicates folding blades which are secured to the shafts 413 in any well-known manner.

16 indicates tumbling-levers which are secured upon the ends of the shafts 13 outside of the rotary carrier 5 and are provided upon their ends with studs 17, preferably in the form of rollers, and projecting outwardly from the surface of the tumbling-levers 16.

18 indicates a guide-ring open at the bottom above the folding rollers to ermit the operation of the folding blade ereinafter described, upon the inner surface of which the studs or rollers 17 on the tumbling-levers 16 bear to retain the blades in normal position'while not operating,-that is to say, in the form in which my improvements are illustrated, with the blade at right angles to the radius of the rotary carrier which passes through the center of the shaft 13.

19 indicates a gear which is secured to the shaft 6. e f

A 20 indicates a 'gear which is journaled upon a stud 21 on the framework 7 and meshes with the gear 19. The gears 19-20 contain an equal number of teeth so that they rotatev at the same speed.

22 indicates guides which are secured to the inner surface of the gear 20 or formed integral therewith, the guides'22 having their interior surfaces parallel with one another so as to provide a groove 23 which, in the form shown, extends diametrically acrossthe gear 20 open at both ends. The gear 20 is so located that its axis lies in the vertical plane which is tangent to both the folding rollers at their point of contact and is slightly above the axial lines of the folding rollers 12. The diameters ofthe

gears

19 and 20, and the length of the guides 22 are so proportioned to the distance of the center of the shaft 13 from the center of the shaft 6, and the gear with the guides 22 is so positioned that at just the moment when the roller on the lead "end of Ythe tumblin -lever comes into posirier in the usual manner. At the instant that the groove 23 reaches the position shown on Fig. 1,-namely with the central line tangent to the circle in which the axial line of the shaft 13 travels-the tumblinglever has come into position to have the roller upon its lead end enter the groove. The parts revolving in the direction indicated by arrows in the several figures, the end of the groove which engages the tumbling-lever will be traveling in the same direction at the moment of its engagement, and, as the radius of the curve in which the tumbling-lever travels is greater than the radius of the gears 19-20, the lead end of the tumbling-lever, as the parts rotate, will be moved into the position shown in dotted lines in Fig. 2, tucking the paper, which in the meantime has been severed by the knife l0, between the folding rollers by which the fold is completed in the usual manner. As the rotation continues, the engaged roller on what has so far been the lead end of the tumbling-lever will travel up the groove and the tumbling-lever will be moved out of folding position. Just at the moment when the engaged roller is about to leave the groove, the central line of the groove will again be tangent to the circle in which the axis of the tumbling-lever travels and the folding blade, moved out of folding position into normal position, will be delivered to the guide-ring to bel carried around and again operated.

As the `groove 23 extends diametrically across'the gear 20, in the form in which l have embodied my invention, and as the gear 20 makes one revolution for each revolution of the rotary carrier, the folding blade diametrically opposite the one which has just been operated will come into position to be operated from the other end of the groove 23, and the tumbling-levers and folding blades diametrically opposite each other will 'be successively operated, one from one end and the other from the other end of the groove. This is the form in which I prefer to embody my invention, but it is of course obvious that instead of the two tumblinglevers and the two folding blades the carrier might contain only one or more than two tumbling-levers and folding blades, the parts 'being correspondingly proportioned and operated, without departing from the spirit of my invention. It is obvious also that the direction of rotation might be opposite to that indicated, the cutting cylinder being suitably disposed, and the operation would be exactly the same.

inasmuch as the engaging groove on the gear or rotary member, at the moment of its engaging the lead end of the tumbling-lever, is tangent to the circle in which the axis of the tumbling lever moves, and as this engagement is effected while traveling in the same general direction with the lead end of the tumbling-lever, it is obvious that the tumbling-lever and therefore the folding blade will be moved from the normal position in the guide to folding position without shock or violent contact of parts, and as the blade is moved out of folding position towards normal position while the parts are traveling in the same general direction, and at the moment of the release of the tumbling-lever from the guide the guide groove is again tangent to the circle of travel of the axis of the tumbling lever, it is obvious that the blade will be moved out of folding position and delivered to the guide-ring in normal position without a shock or violent contact of parts, enabling the device to be rotated at a high rate of speed.

Vihat l claim as my invention and. desire to secure .by Letters Patent is l. In combination, a rotary carrier, a folding blade carried thereby, a tumbling-lever on said folding blade, a guide-ring for said tumbling-lever, fold-laying devices, a rotary member, whose axis lies in the plane which is tangent to said fold-laying devices and passes through the axis of thefolding cylinder and a single radial guide thereon adapted to receive said tumbling-lever from said guide-ring in normal position, and, by its rotation, to move said folding blade into and out of folding position and deliver said tumbling-lever to said guide-ring in normal position. v

2. In combination, a rotary carrier, a folding blade carried thereby, a tumbling-lever en said folding blade, a guide-ring for said tumbling-lever, fold-laying devices, a rotary member, and a radial guide thereon adapted to receive said tumbling-lever from said guide-ring in normal position while substantially in line with said tuml)ling-lever, and, by its rotation, to move said folding blade into and out of folding position and deliver said tumlt-ling-lever to saidv guide-ring in normal position when said radial guide and said tumbling-lever are substantially in line with each other.

3. In combination, a carrier, a folding blade, a tumbling-lever connected to said folding blade, engaging studs on said tumbling-lever, a guide-ring, folding rollers, a rotary member, and a radial guide thereon adapted to engage the stud on the lead en d of said tumbling-lever when said tumblinglever is in normal position and said guide is substantially in line therewith, and, by its rotation, to move said folding blade into and out of folding position and deliver said tumbling-lever to said guide-ring in normal position when said radial guide and said tumbling-lever are again substantially in line with each other.

4l. The combination with a rotary carrier, a folding blade carried thereby, a tumblinglever connected with said folding blade, a

guide-ring for said tumbling-lever, and folding rollers, of a rotary member, and a radial guide thereon adapted to engage said tumbling-lever When said radial guide is substantially tangent to the curve of travel of said folding blade, and, by its'rotation, to move said folding blade from normal into folding position and from folding into normal posltion and deliver said tumbling-lever to said guide-ring-When said radial guide is substantially tangent to the curve of travel' of said folding blade.

5. The combination With a carrier, a folding blade carried thereby, a tumbling-lever connected with said folding blade, a guidering for said tumbling-lever, and fold-laying devices, of a rotary member Whose axis lies in the plane which is tangent to said foldlaying devices and passes through the axis of the folding cylinder, a single radial groove on said rotary member adapted to receive the lead end of the tumbling-lever from said guide-ring With said tumbling-lever in normal position and to move said folding blade into and out of folding position andto deliver said tumbling-lever to said` guide-ring with said tumbling-lever in normal position.y

6. The combination With a carrier, a folding blade carried thereby, a tumbling-lever connected with said folding blade, a guidering for said tumbling-lever, and fold-laying devices, of a rotary member provided with a radial groove adapted to receive the lead end of the tumbling-lever from said guidering With said tumbling-lever in normal position and While saidrguide is substantially in line With said tumbling-lever and to move said folding blade intol and out of folding position and to deliver said tumbling-lever to said guide-ring with saidtumbling-lever in normal position When said radial groove and said tumbling-leverare again substantially in line. Y

7. The combination With a carrier, a folding blade carried thereby, a tumbling-lever connected With said folding blade, a guidering for said tumbling-lever, and fold-laying devices, of a rotary member provided With a radial groove adapted to receive the lead end of the tumbling-lever from said guidering While substantially in line With said tumbling-lever and With said tumbling.

lever in normal position and to move said folding blade into and out of foldingposition and to release said tumbling-lever from the same end ofsaid groove by Which it Was first engaged and to deliver it in normal position to said guide-ring When said groove and said tumbling-lever are again substantially in line.

8. The combination with a carrier, diametrically-oppositely-disposed folding blades, a tumbling-lever connected With each of said folding blades, a guide-ring for said tumbling-levers, and fold-laying devices, of a rotary member, and a diametrically-disposed guide lon said rotary member adapted successively at its opposite ends to alternately engage said tumbling-levers in normal position and to move the respective folding blades into and out of folding position and to release the tumbling-lever from the samey end of said guide by which it Was first engaged and deliver the same'in normal position to said guide-ring.

9. The combination With a carrier, diametrically-oppositely-disposed folding blades, a tumblingelever connected with each of said folding blades, a guide-ring for said tumbling-levers, and fold-laying devices, of a rotary member, and a diametrically-disposed guide on'said rotarv member adapted successively at its opposite ends to alternately engage said tumbling-levers in their normal position When substantially in line therewith, to move them into and out of folding position, and to deliver them in normal position to said guide-ring from the same end of said guide by which they were engaged.

10. The combination with a carrier, a pair of tumbling-levers, oppositely-disposed folding blades, one of said tumbling-levers connected with each of said folding blades, a guide-ring for said tumbling-levers, and foldlaying devices, of a rotary member provided With a groove extending diametrically across it and adapted successively atits opposite ends to alternately engage the lead ends of said tumbling-levers While the same are in normal position, and, by its rotation, to move said folding blades into and out of folding position and deliver the said tumbling-levers in normal position to the guide-ring from the same end of said guide by which they Were engaged.

HUBERT LANG.

Witnesses:

GEO. D. ALLABY, W. G. FERGUSON.