US2925611A - Printing press attachment - Google Patents

Description

Feb. 23, 1960 c. R. PATTERSON PRINTING PRESS ATTACHMENT 5 Sheets-Sheet l I Filed May 6, 1957 Char/es R. Paflerson IN VEN TOR. a063 Feb. 23, 1960 c. R. PATTERSON PRINTING PRESS ATTACHMENT Filed May 6, 1957 5 Sheets-Sheet 2 v I L I Q v Q I m\ w Q 0 0s a J J w :3 (I E Char/es R. Patterson INVENTOR.

Feb.23, 1960 c. R. PATTERSON PRINTING PRESS ATTACl-IMENT 5 Sheets-Sheet 4 Filed May 6, 1957 "R m, 00 m 2M A 8 6 W 2 w 4 2 W 2 04 8 y m m 2 P a m .0. m 6 H R m 5 a Q m M 0 r 2 a v. n B C of; m m

Feb. 23, 1960 v c, PATTEIRSQN 2,925,611

PRINTING PRESS ATTACHMENT Filed May 6, 1957 5 Sheets-Sheet 5 Char/es 5. Patterson INVENTOR.

United States PatentO PRINTING PRESS ATTACHMENT Charles R. Patterson, Madison, Wis. Application May 6, 1957, Serial No. 657,407

7 Claims. (Cl. 11-1) This invention relates to a device for applying adhesive to corresponding edges of sheets of paper to form sets which are constituted by two or more sheets.

My machine is primarily intended to be an attachment coordinated with or otherwise connected to another sheet material handling machine. Two such sheet material handling machines are printing presses and paper collators. Since a printing press develops more fully the capacity of the invention, it is referenced principally, but it is to be clearly understood that many other types of machines may use my attachment.

An object of the invention is to provide an attachment for a printing press or for any other machine which delivers sheets of paper to a delivery station, the attachment being capable of applying adhesive to corresponding edges of a selected number of sheets in coordination with the delivery of sheets to the delivery station.

The attachment is capable of being adjusted to apply adhesive to the correct number of sheets automatically and without separate handling after the same are received at the delivery station. For example, a common request is for sets of papers which will each be constituted of a white sheet, a blue sheet, a pink sheet and a green sheet. This set, then, will be composed of four sheets of paper. A printing press is ordinarily run so as to print these sheets and deliver the same in the correct order of color at the delivery station of the press. My attachment may be set to apply glue at corresponding edges on each of the sheets except the last sheet which will become the top one in the set. Then, without interruption my attachment will apply adhesive to the next group of papers making up the next set. The result is that my machine or attachment is a time saver on this type of job since the sets are ready for packaging and shipment at the delivery station of the press. Hand correlating or machine correlating and subsequent or simultaneous gluing is completely obviated when my attachment is mounted directly on the printing press.

A further object of the invention is to provide a practical device of the nature described above, the device being made practical in that it is capable of being attached directly to the printing press and derives its power from the delivery arms of the press. In this way as the paper sheets are delivered the attachment must operate in unison and synchronism therewith. Once applied to the press it will not interfere with the normal other operations of the press but will materially enhance profits on orders involving sets which must be delivered with the sheets attached to each other but each set separate from the others.

The illustrated embodiment of my invention is constructed of two sections that are operatively associated with each other. The upper section has an adhesive reservoir together with an applicator capable of moving in an oscillatory path. At one end of each oscillation the applicator is in the presence of the adhesive while at the other end of each oscillatory stroke the applicator deposits the adhesive on an edge of the sheet in the delivery station of the printing press. The lower section of my attachment programs the oscillations of the applicator. It may be adjusted to cause the applicator to apply adhesive to selected numbers of sheets after which an adhesive applying stroke is restrained thereby leaving two adjacent sheets in the delivery station separate from each other. These will define the divisions between the sets.

Mechanically, this is achieved by permitting the ap plicator to oscillate once for each sheet delivery movement of the side delivery arms of the printing press. But, where a dry run is necessary, a stop is interposed in the travel of the means that oscillate the applicator and the shock absorber arrests the motion of the applicator by holding a part of these means idle during a fragment of one stroke. I have a stop whose position is altered in accordance with a simple adjustment setting in such a way that there will be any number of delivery arm strokes required to progress the stop into the applicator retaining position.

One of the important features of my invention is the adaptability of the attachment to a machine and principally, a printing press. There are in the prior art, machines for applying adhesive to sheets of paper. But, I am not aware of a practical machine which is capable of functioning as an attachment for a printing press to automatically prepare the sheets in sets for immediate wrapping at the delivery station of the printing press. This is coupled with the fact that my attachment does not in any way interfere with the normal operationof the press. Moreover, it may beapplied and removed in a matter of a few minutes and is of a size and weight so that it is capable of easy handling.

Another object of the invention is to provide an attachment for a machine that has a repetitive motion to dc.- liver sheets to a delivery station, the attachment being capable of applying adhesive to a selected number of sheets and then omitting a sheet in accordance with previous programming of my attachment. An important feature of the invention is an adjustment for the depth of penetration of the applicator in the adhesive reservoir In this way a selected quantity of adhesive is drawn from the reservoir and applied to the sheet or sheets in the delivery station.

Other objects and features of importance will become apparent in following the description of the illustrated form of the invention.

In the drawings:

Figure 1 is a fragmentary elevational view of a print.- ing press at the delivery end thereof, the press being fitted with an attachment in accordance with the invention;

Figure 2 is a top view of the press in Figure 1, parts being broken away in section to illustrate what would otherwise be hidden detail;

Figure 3 is a sectional view with parts broken away further in section, this view showing the attachment in a position where the applicator has its fingers in the ad.- hesive reservoir;

Figure 4 is a fragmentary elevational view of the attachment in Figure 3, this view showing the applicator at a part of a single stroke of operation wherein the adhesive is being applied to the top sheet in the delivery station of the press;

Figure 5 is an elevational view similar to Figure 4 but showing the applicator being withheld or restrained from applying its charge of adhesive onto the sheet in the delivery station of the press.

Figure 6 is a fragmentary sectional view taken approximately on the line 6-6 of Figure 1 and showing principally the relationship of the reservoir and applica or;

Figure 7 is a. sectional view taken on the line 7--7 of Figure 1 showing the means for programming the machine;

Figure 8 is a top view of the part of the programming means that are shown in Figure'7; and

Figure 9 is a sectional view on an enlarged scale and taken on the line 99 of Figure 7.

In the accompanying drawings there is a machine 10 which is capable of being used as an attachment for any paper handling equipment but which is: especially useful 1n connection with printing press 12. Therefore my machine has the nature of an attachment. Printing press 12 has guards 14 and 16 on the oppositesides together with the right delivery arm 18 and left delivery arm 20 which function to deposit sheets of printed matter on table .22 in the delivery station 24 of the press. Among other structures of the printing press are frame 26 and shaft 28 below frame 26 and from which power to operatethe right and left delivery arms 18 and 20, is obtained. The delivery arms operate in an oscillatory manner andalthough power is derived from these delivery arms, the power requirements of my attachment 10 are so low that the normal operation of the press is not hindered.

Attachment 10 is constructed of an upper section 30 and a lower section '32. These are arbitrarily designated as upper and lower and it is understood that the sections need not be so superposed. Section 30 comprises a support 34 which has mounting brackets 36 and 38 attached to the right and left guards 14 and 16, respectively. The mounting brackets 36and 38 are L-shaped and are bolted as at 40 to the guards 14 and 16. These bolts pass through holes in one leg-of each of the L-shaped mounting brackets 36 and 38, and the other legs of the mounting brackets are approximately parallel to each other and have sleeves 42 and 44 welded to their ends. Frame member 46 is bolted as at 48 to the sleeves 42 and 44 "and extends transversely across the delivery end of the press. Frame member 46 can be of channel section or angle section. By having support 34 constructed in this way various adjustments may be made to compensate for slight deviations in press width inasmuch as bolts 48 pass through slots in the ends of the frame member 46.

A longitudinal upwardly opening receptacle 50 is mounted behind frame member 46 and carried by stationary arms 52 and 54 which are welded or otherwise secured in place on the frame member 46. Receptacle 50 functions as an adhesive reservoir it being intended that commercially available glue be used as the adhesive and contained in the reservoir. A paper stop 58 is secured to frame member 34 but is located behind the reservoir 50. The paper stop consists of a strip 60 that has a group of parallel and upwardly extending fingers 62 by which the paper sheets are jogged when the same are delivered to the station 24 in the printing press. Strip 60 is held in fixed position with respect to the support by a plurality of support arms 64 that are bolted as at 66 to the support 34 and that are fixed at their opposite ends to the strip 60. The strip is located behind reservoir 50 and at theedge of table 22.

Applicator rest 68 is adjustable toward and away from frame member 46 over which it is supported. There are a number of ways to achieve the adjustment, one being by using a pair of studs 70 and 72 that are carried by frame member 46 and that rise therefrom. Nuts 74 and 76 are arranged in groups on each stud and hold the eyes 80 and 82 at the ends of rest 68 captive between them Adjusting the groups of nuts will enable the rest 68 to be vertically adjusted.

Adhesive applicator 86 is mounted in such a way that it oscillates from a position of extracting adhesive from reservoir 50 to a position of depositing thatadhesive on sheet .88 which is the top sheet on table 22. ,Applicator :86 moves .in .ancscillatory path audis constructedof a plurality of arms 90. Each arm 90 is connected intermediate its ends by clamps 92, to the oscillating carrier bar 94. This bar extends across the attachment and is secured at its ends to the cranks 96 and 98. Crank 98 is pivoted to bracket 100 while crank 96 is mounted by pivot pin 101 on bracket 102. Brackets 100 and 102 are attached to frame member 46 and have parts which protrude rearwardly and upwardly therefrom. Arms 90 are held in place by clamps which are capable of being slid along carrier bar '94 to a selected adjusted position at which they are frictionally held as by set screws. In addition, the clamps 92 are so constructed as to allow the arms 90 to be 'pivotally moved about carrier bar 94 as an axis. Each arm 90 has a downturned finger 104 at theinner end thereof, this finger being for the purpose of dipping into the reservoir 50' (Fig. 6), accumulating a supply of adhesive and then depositing this adhesive onto the edge of sheet 88 during the normal oscillatory motion of the applicator 86. The depth of penetration of finger 104 into reservoir 50 is controlled by the elevation of rest 68 in this way: each arm 90 is pivoted onto the carrier bar 94 at a point between the two ends of the arm such that the balance tends to require thefinger 104 to assume a higher position than the heavier outer end. Clamps 92 are U-shaped with alined holes in the legs thereof through which carrier bar 94 is passed. There fore the connecting member of the clamps 92 functions as a stop which will limit the pivotal motion of each finger 92. When applicator 86 is moved to a position where the fingers enter the reservoir 50 it is because the outer ends of the arms 90 have struck rest 68 causing the fingers to pivot about the carrier bar 94 as an axis (Fig. 6). However, as the applicator 86 is moved to the position at which the adhesive is applied to sheet 88 (Fig. 1) the arms 90 are prevented from complete pivotal movement by the presence of clamps 92. Then, upon actual contact of the fingers 104 with the sheets 88 further pivotal movement of the arms 90 is obtained so that the elevation of the top of the stack of sheets on table 22 of delivery station 24 is not critical.

The means for moving the applicator 86 in the oscillatory path are coordinated with the movement of the delivery arms 18 and 20 of the printing press. These means consist of a push rod connected by pivot 112 to the right delivery arm18 between the upper and lower extremities thereof. The push rod is passed through a guide 114'whichmay be in the form of a sleeve, the guide being connected by pivot 116 to a lever 118. A shock absorber is interposed between the extremity of push rod 110 and guide 114 and consists preferably of a spring 120 concentrically arranged on the outer end of push rod 110 and bearing against a collar 122 on the outer end of the push rod and bearing against the outer surface of guide 114. A drive collar is adjustably secured in a fixed position on push rod 119 and is adapted to contact the back surface of guide 114 to establish a drive in one direction. The drive is established between push rod 110 and lever .118 in the opposite direction through spring 120. Lever 118 is made in two pieces so that it is capable of being adjusted, but once the adjustment is obtained, it is held and therefore, lever 118 functions as though it were one piece. The upper part of lever 118 is pivoted by pin 134 to' bracket 102. Gear segment 136 is at the upper end of lever 118 and it is in engagement with teeth 138 which are formed on crank 96. Therefore, carrier bar 94 being rigid with crank 98 and crank 96, is oscillated in accordance with the oscillations of lever 118 about its pivot .116. But, lever 118 is oscillated in coordination and in unison with the right and left delivery arms 18 and 20. Therefore, the appli cator oscillations are timed and coordinated with the deposit of sheets 88 on table 22 in delivery station 2 10f the printing press.

With the attachment for the printing press as described abov th applica o fifiwil administer adhes v o edges of the sheets 88 as they are delivered one by one onto the table 22. One of the important features of the invention is its capability of forming sets of sheets direct ly from the sheets that are discharged from the press bed onto the table 22 without intermediate handling. These sets must be discrete and may consist in any number of sheets per set. Therefore there are means operatively connected with the applicator oscillating means for interrupting the normal applicator stroke, restraining it from coming in contact with the top sheet 88 at regular intervals during the operation of my attachment. For this event, reference is made to Figure where the fingers 104 of the applicator are held poised above the sheets 88 and without in any way interfering with the normal movement of the delivery arms 18 and 20 of the press. Further, this is achieved without the complication of clutches or other mechanical engaging and disengaging parts which are subject to maladjustment and wear. The means which my invention employs for this purpose are located below the upper section and consist of shaft 150 that is mounted for rotation on support 26 through the supporting brackets 152 and 154. These are secured to frame 26 and have bearings within which shaft 159 is mounted for rotation. Gear 156 is secured to shaft 150 and on the outer face of bracket 154. It is meshed with pinion 158 that is fixed to spindle 160. A friction brake 162 is operatively connected with spindle 160 and is made of a spring loaded collar on the inner end of spindle 160 and reacting on bracket 154. The function of the friction brake is to prevent overriding of the mechanism that is being described subsequently.

A stop 166 is connected to pinion 158 and it is preferred that the stop be constructed of an arm 170 whose outer end supports an arcuate shoe 172 and whose inner end is fixed to the spindle 160 and/ or fixed to the pinion 158. Stop 174 is secured to lever 118 and is adapted to contact shoe 172 (Fig. 5) at such time that the shoe is in the path of travel of stop 174. This will be when the machine is so adjusted and will depend on the number of oscillations of applicator 86 that are desired before one is partially blocked by contact of stop 174 with shoe 172 of the movable stop 166. During this condition (Fig. 5) the delivery arms 18 and 20 will travel in the usual way but instead of spring 120 driving lever 118, it will compress and absorb the shock as the push rod 110 is being returned. The motion of the lever 118 is arrested by the stop 174 coming into contact with movable stop 166. Movable stop 166 rotates through a complete 360 orbit and the timing is such that it will be in the path of travel of movable stop 174 only at the desired time.

This timing is achieved by the structure seen best in Figures 7-9. The end of shaft 150 has a collar 180 secured to it in order to prevent end play of shaft 150 in one direction. Shield 182 is adjustably mounted on shaft 150 and has a collar 184 at one end which is disposed on the shaft 150 and located between collar 180 and the outer face of bracket 152. A set screw 186 or like fastener is carried by the collar 184 and is engageable with the shaft 156 to hold shield 182 in a selected position of adjustment. The shield is generally U-shaped (Fig. 8) and the curved part 190 thereof is located adjacent to the teeth 192 of ratchet Wheel 194. This ratchet wheel is secured to shaft 150 and is used to rotate the shaft in response to the oscillatory motion of the printing press delivery arms 18 and 20 and more particularly, the delivery arm 20.

The mechanical means connecting the delivery arm 20 with ratchet wheel 194 are (Fig. 7) oscillatory bracket 196 and pitman 198. The pitman is pivoted to a carrier 200 that is attached to delivery arm 20. The pitman is also pivoted to oscillatory bracket 196 that is mounted for free oscillation on shaft 151) (Fig. 9). A pawl 204 is pivoted on a face of oscillatory bracket 196 and is engagedwith teeth 192 of the ratchet wheel 194. Therefore as delivery arm 20 is oscillated, pitman 198 works 6 back and forth causing oscillatory bracket 196 to oscillate and thereby drive the ratchet wheel 194 through an angle that is predetermined by the position of shield 182. This shield blanks or covers a number of teeth 192 and this number is governed by the adjustment of the shield.

Therefore, the number of oscillations of delivery arm 20 which will be required to achieve movable stop 166, may be obtained positioning of shield 182.

as required by proper Operation The printing press is set up and used in the ordinary, usual way. My machine is attached to the printing press at the delivery end thereof and near the delivery station 24. It will in no way interfere with the normal operation of the printing press because my attachment is easily disengaged by merely separating the push rod 110 and pitman 198 from engagement with the two delivery arms 18 and 20 of the printing press. The principal application of my attachment is to connect sheets in sets but maintain the sets separate from each other. In addition the attachment is capable of being set so that the sets may be made of two or more sheets, this being variable in accordance with the job order.

As the printing press delivers freshly printed sheets 88 to the delivery station, they move to the jogging fingers 62 and are brought to rest at the delivery station. But, as each sheet is so delivered, my attachment is set in motion. As the delivery arms 18 and 20 move to the position shown in Figure 3, the applicator arms 90 are moved in unison to the adhesive obtaining position wherein fingers 104 are submerged in the adhesive of reservoir 50. This is accompanied by a simultaneous movement of all of the arms 90 occasioned by the presence of the adjustable rest 68. Rest 68 mechanically requires the fingers 104 to be submerged into reservoir 50 so that a correct quantity of adhesive is obtained. By trial and error that is, by a few samplings, the correct quantity of adhesive for the job being done is obtained by adjusting the elevation of rest 68. As delivery arms 18 and 20 move further in their single cycle of operation and in a direction to obtain another sheet 88, the applicator 86 is oscillated from a position shown in Figure 3 to the position shown in Figure 4 at which fingers 104 gently touch the top sheet 88 of the stack of sheets on table 22. Then, the delivery arms 18 and 243 are ready for another stroke and this will return the applicator toward the position of Figure 3.

Simultaneously with the described movement of the applicator, pitman 198 oscillates oscillatable bracket 196 causing pawl 294 to rotate shaft 150 through a predetermined angle. The angle is determined by the adjustment of shield 182, it being first learned how many strokes of the delivery arms are desired before one stroke is to yield no adhesive deposit by applicator 86. Numerical designations located alongside of the adjustable collar 184 will facilitate the printers adjustment of my attachment.

If the machine is set for groupings of four sheets of paper per set, the fourth stroke of the delivery arms will produce only a partial stroke of lever 118 by interaction between stop 174 and the shoe 172 of movable stop 166. This means that shield '182 will have to be so positioned that one fourth of the number of teeth 192 on ratchet wheel 194 will be subtended by an are described by the end of pawl 204 and any remaining teeth will be shielded by shield 182. This is based on the assumption that there will be a one to one relationship between the number of ratchet teeth and the gearing shown in Figure 5. This obviously is not the case but exemplifies the principle involved. A typical gearing ratio found successful and capable of having the machine adjusted to prepare sets that have from two to twelve sheets therein, uses a, 94, a twenty tooth pinion forty-eight tooth ratchet wheel 158 and a forty tooth gear 156. I

When the lever stop 174 and movable stop 166 are in contact, the return stroke of push rod does not re a full revolution of u e r 1 h mo ion o the p h red 110 n returning direction is permitted due to the presence of spring 120, but the applicator 86 does not deposit its adhesiveonto the top sheet 88 of the stack of sheets on table 22.

Various modifications and alterations may be made in the invention without departing from the scope of the following claims.

What is claimed as new is as follows:

1. In a printing press which has a power driven means for delivering sheets to a station, a device adapted for attachment to said press for applying adhesives to corresponding edges of said sheets to form sets which are constituted by two or more sheets, said device comprising an adhesive applicator including a carrier bar which is subjected to an oscillatory motion by said power driven means, a plurality of arms mounted pivotally on said carrier bar, adhesive receiving and applying fingers at the inner ends of said arms, an adhesive reservoir, means connecting said applicator to said power driven means for driving said fingers of said applicator in a cyclic movement between said reservoir and said sheets in synchronization with said power driven means, and adjustable interrupting means operatively connected to said power driven means for preventing the fingers of said applicator from contacting a selected sheet in each of said sets of sheets.

2. In a. printing press which has a power driven means for delivering sheets to a station, a device adapted for attachment to said press for applying adhesives to corresponding edges of said sheets to form sets which are constituted by two or more sheets, said device comprising an adhesive applicator including a carrier bar which is subjected to an oscillatory motion by said power driven means, a plurality of arms mounted pivotally on said carrier bar, adhesive receiving and applying means on said arms, an adhesive reservoir, means connecting said applicator to said power driven means for driving said adhesive applying means of said applicator in a cyclic movement between said reservoir and said sheets in synchronization with said power driven means and adjustable means operatively connected to said power driven means for interrupting the movement of said arms between said sets of sheets.

3. A machine for applying adhesive to corresponding edges of sheets of paper to form sets which are constituted by two or more sheets comprising a power driven means, an adhesive applicator including a carrier bar which is subjected to an oscillatory motion by said power driven means, a plurality of arms mounted pivotally on said carrier arm, adhesive receiving and applying means at the inner ends of. said arms, an adhesive reservoir, means connecting said applicator to said power means for driving said adhesive applying means of said applicator in a cyclic movement between said reservoir and said sheets in Synchronization with said power means, and adjustable interrupting means for preventing said adhesive applying means from depositing adhesive on a selected sheet in each of said sets of sheets.

4. In an attachment for a printing press which has an applicator by which to apply adhesive directly onto the sheets as they are delivered to the delivery station of the press, the combination of an applicator, an adhesive reservoir, said applicator being adapted to move from said reservoir to said station, means for moving said applicator from said reservoir to said station and from said station to said reservoir, said applicator moving means including a lever, a stop associated with said lever, a push rod, means responsive to the movement of the delivery arm of the press for reciprocating said push rod, a guide carried by said lever and through which said push rod is passed, a shock absorbing element connected with said push rod and said guide, said resilient element being arranged to drive said lever in one direction, a meha ted e em nt ttach d t s i push rod nd o tac ing said guide whereby oscillation of said. lever is caused, means at, taching said push rod to said delivery arm so that said lever is oscillated in response to operation of said delivery arm, and motion interrupting means actuated in response to actuation of a delivery arm of the press and engageable by said stop that is associated with said lever to interrupt the motion of said lever while permitting said push rod to flex said resilient element and thereby have the press delivery arm operated substantially unimpeded for its delivery of sheets to the delivery station, said motion interrupting means including a shaft, an orbitally movable stop adapted to be engaged by the stop on said lever, means including gearing drivingly connecting said movable stop with said shaft, and means adjustable to the desired number of strokes of the delivery arrn of the press for rotating said shaft through angular distances in order to propel said movable stop through its orbit.

5. An attachment for applying adhesive to corresponding edges of sheets of paper to form sets which are constituted by two or more. sheets, said attachment comprising a support, means for stationarily mounting said support, an adhesive reservoir carried by said support, an adhesive applicator, means pivoted to said support and mounting said applicator for oscillation during which said applicator is successively placed in said reservoir at one end of an oscillatory stroke and moved into an adhesive applying position at the other end of the stroke, means to oscillate said applicator mounting means, programmed means for temporarily holding a portion of said means to oscillate the applicator and thereby restrain the applicator from moving to the sheet contacting position, including a ratchet wheel, a pawl engageable with the teeth of the ratchet wheel, a pawl mounting bracket, means for oscillating said pawl mounting bracket in unison with said applicator mounting means, a stop adapted to be contacted by said applicator oscillating means, and means drivingly connecting said stop with said ratchet wheel to move said stop into and from the position at which it is contacted by said applicator oscillating means,

6. An attachment for applying adhesive to correspond ing edges of sheets of paper to form sets which are constituted by two or more sheets, said attachment comprising a support, means for stationarily mounting said support, an adhesive reservoir carried by said support, an adhesive applicator, means pivoted to said support and mounting said applicator for oscillation during which said applicator is successively placed in said reservoir at one end of an oscillatory stroke and moved into an adhesive applying position at the other end of the stroke, means to oscillate said applicator mounting means, pro grammed means for temporarily holding a portion. of said means to oscillate the applicator and thereby restrain the applicator from moving to the sheet contacting position, said programmed means including a ratchet wheel, a pawl engageable with the teeth of the ratchet wheel, a pawl mounting bracket, means for oscillating said pawl mounting bracket in unison with said applicator mounting means, a stop adapted to be contacted by said applicator oscillating means, means drivingly connecting said stop with said ratchet wheel to move said step into and from the position at which it is contacted by said applicator oscillating means, a shield which blanks some of the teeth of said ratchet wheel, and means for adjusting said shield with respect to said teeth and thereby select the angle through which said ratchet wheel and said stop move for each stroke of said applicator mounting means.

7. In an attachment for a printing press which has an applicator by which to apply adhesive directly onto the; sheets as, they are delivered to the delivery station of the press, the combination of an applicator, an. adhesive se v r-t said. app nt being, dap ed o mov t o n.

to drive said lever in the opposite direction said reservoir to said station, means for moving said applicator from said reservoir to said station and from said station to said reservoir, said applicator moving means including a lever, a stop associated with said lever, a push rod, means responsive to the movement of the delivery arm of the press for reciprocating said push rod, a guide carried by said lever and through which said push rod is passed, a shock absorbing resilient element connected with said push rod and said guide, said resilient element being arranged to drive said lever in one direction, a mechanical element attached to said push rod and contacting said guide to drive said lever in the opposite direction whereby oscillation of said lever is caused, means attaching said push rod to said delivery arm so that said lever is oscillated in response to operation of said delivery arm, motion interrupting means actuated in response to actuation of a delivery arm of the press and engageable by said stop that is associated with said lever to interrupt the motion of said lever while permitting said push rod to flex said resilient element and thereby have the press delivery arm operated substantially unimpeded for its delivery of sheets to the delivery station, an orbital traveling stop, and adjustable means responsive to a selected number of strokes of the press delivery arm for selecting the number of reciprocations of the delivery arm required to bring the orbital stop into alinement with said stop on said lever.

References Cited in the file of this patent UNITED STATES PATENTS 2,699,749 Holley Jan. 18, 1955 2,708,760 Pearce May 24, 1955 2,782,756 Hunt Feb. 26, 1957 2,816,755 Dusenbury et a1. Dec. 17, 1957

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