US1119857A

US1119857A - Sheet-feeding device.

Info

Publication number: US1119857A
Application number: US64420811A
Authority: US
Inventors: Henry W Morgan
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-08-15
Filing date: 1911-08-15
Publication date: 1914-12-08
Anticipated expiration: 1931-12-08

Description

H. W. MORGAN.

SHEET FEEDING DEVICE.

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H. W. MORGAN.

SHEET FEEDING DEVICE.

APPLIcATloN 111.1111 111111.15. 1911.

1,1 1 9,857. Patented Dec. 8, 1914.

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SHEET PEEDING DEVICE.

APPLICATION FILED AUG.15,1911.

Patented Dec. 8, 1914.

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SHEET PBBDING DEVICE.

APPLICATION ULEB 11116.15, 1911.

1,1 1 9,857. Patented Dec. s, 1914 5 SHEETS-SHEET 4.

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SHEET FBEDING DEVICE.

APPLICATION FILED AUG.15, 1911.

Patented Dec. 8, 1914.

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`II1.1\TlR.Y W. MORGAN, OF ROCHESTER, NEW YORK.`

SIIEET-FEEDING DEVICE.

Specification of Letters Patent.

`Patented Dec. 8,1914.`

Application filed August 15, `1911. Serial No. 644,208.

To all whom it may concern Be it knownthat I, HENRY W. MORGAN, of Rochester, in the county of Monroe and State of New York, havelinvented certain new and useful Improvements in Slieet- FeedingiDevices; and I do hereby declaie the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the reference-numerals marked thereon.

My present `invention relates to sheet handling` devices and has for 1ts object to provide an improved mechanism for feeding sheets or carrying them one at a time from one point to another, one of the ob]ects being to provide for the handling of sheets having no considerable thickness requiring that they be dragged, rather than pushed, along their' course of travel.

A further `object of the invention is to make arrangements offering greater convenience tothe operator in starting the s lieets on their'way and to provide for the delivery of the sheets at a farther point. i

To these and other ends the invention consists in certain improvements and .combinations of parts all as will be hereinafter more fully described, the novel features bei ing pointed `out in the claims at the end of the specification.

In the drawings: Figure 1 is a side elevation of the central or printing section of a printing press provided with a sheet feeding device constructed in accordance with and illustrating one embodiment o1 my in-` vention; Fig. 2 is a side elevation of the left hand or supply end of the same press; Fig. 3 is a side elevation of the right hand or delivery end; Fig. 4 is a top plan View of the left hand or feeding end; Fig. 5 is a top plan view of the right hand orldelivery end; Fig. 6 is a vertical detail section, much enlarged, of the stationary actuating mechanism for opening the jawsof the grippers at the delivery end of the machine, taken substantially on the line (3-6 of Fig. 5; Fig. 7 is a fragmentary top plan view of the )aw operating mechanism at one end of the gripper; Fig. 8 is an enlaiged detail vertical section taken substantially on the line 8-8 of Fig. 4; Fig. 9 is a section taken substan-` tially on the `line 9-9 of Fig. 6; Fig. 1U is a section taken substantially on the line 10-10 of Fig. 4; Fig. l1 is a section taken .1 substantially Iron the line 11-11 of FigvS,

and Fig. l2`is a section taken substantially on the `line 12v-12 of Fig. 8.

Similar reference numerals throughout the several figures indicate the same parts.

The present invention is particularly adapted for use in connection with printing presses and the particular machine of the present embodiment has been designed for the purpose of printing upon the fiber board, of which boxes are made, the material being printed in the sheet before `being' folded into a box. This `fiber board is relatively heavy as a rule, but not of suflicient thickness to be shoved through the printingcouple by a pusher operating behind it,:as in ordinary board printing machines. preferableto draw it through and it is along this principle that the present device operates. i

Referring more particularly to the drawings, 1k indicates the main frame of the Inachine andQ the printing or form cylinders. The latter are driven by the following chain of power transmitting parts, namely: pulley 3, gear 4, gears 5 having the integral beveled gears 6, beveled gear 7 shaft 8, beveled gear 9, beveled gear 10` and shaft 11, but this part of the mechanism requires no detailed description.` The cylinders operate over a printing bed 1Q., best shown in Figs. 4 and 5, and the sheets are fed from a supply table 13 at oneiend of this bed beneath the cylinders and out over the delivery rolls 13a at the opposite end. Because of the extreme size of the machine as a whole in proportion to its details was thought advisable toillustrate it in sections, as shown.

As the sheets leave the supply table 13 their forward edges are inserted in one of a plurality of grippers indicated as a whole by 14 in the general views and in the machine of the present embodiment of the in vention there are three of these grippers that extend transversely across the bed 12 and are guided at the sides thereof, as will be later explained. They are mounted, iii the present instance, at each end on a pair of flexible belt conveyers 15 that travel over pulleys 16 on idle shafts 17 at the two ends of the machine, but before proceeding With the manner of driving them the gripper-s will be rst described in detail, reference being had more particularly to Figs. 6 to 12. Each gripper consists of two spaced

parallel bars

18 and 19 connected attlieir ends and at intervals by blocks 20, the lower, bar con It is,\therefore,

stituting the lower stationary jaw of thel gripper. rlhe upper and movable jaw com prises, in the present instance, theshaft 21 journaled in the blocks 2O and carryingV a plurality of spaced fingers 22, as clearly shown in Figs. d, 7 and 10, that coperate with the stationary jaws in one position ofV the shaft, as shown in full lines in Fig. 10, but are rotated to an open position by the movement of the shaft,ras shown in dotted lines in the same figure. At the ends of the shaft (one end being a duplicate of the other) are secured upwardly projecting arms 23 preferably carrying friction rollers 2st that pass from one side to the other of the aXis of the shaft as the jaws are opened and closed against the tension of leaf springs 25 secured in each case at 26 to an extension 27 of the end block 2O so that as the movable jaw is rotated to either opened or closed position it is retained there by the spring, and when in closed position lthe jaws are caused to come together with a resilient pressure. Extending downwardly from the shaft 21 at each end is another pair of

xed arms

28 and 29 by themovement of which the movable jaw is rotated to either open or closed position against the tension of the spring, in a manner hereinafter set forth. The grippers are guided, as before mentioned, by projecting members 30 (Fig. 8) that cooperate with guides 31 on the frame at the sides of the bed 12.

ln order to give the operator time to insert a sheet from the table 13 into the gripper it is desirable that the latter be halted for an interval of time, adjacent to the table with its jaws open; that the jaws be closed down upon the sheet; Vthat the gripper then be continued on beneath the cylinders and, finally, that the jaws be opened to release the sheet at a point adjacent to the dclivery mechanism embodying the rolls 13a, and in order to accomplish theseresults automatically, the following mechanism is provided: At each side of the bed is an endless chain or carrier 32 traveling in a channel 33 having a raised supporting rib 34 for the rollers of the chain. Each of these chains passes over sprockets 35 at opposite ends of the bed of the machine, the sprockets being carried at one end by an idle shaft 36 and at the other by shaft 37 carrying a bevel gear 38 with which meshes a bevel gear 39 on a shaft l0 that has a bevel gear al meshing with the bevel gear e2, integral with a gear 43 on the frame 1 that is driven, 1n the present instance, by the gear 5 of the train that drives the printing cylinders so that the chain 32 is continuously driven passing adjacent to the operating mechanism of the movable jaws of the grippers and beneath the guiding extensions 30 thereof. At intervals on each chain or carrier, are arranged laterally projecting pins or actuators 44 which are so arranged as to engage the arms 28 on the shaft of the movable aw of each gripperv when the latter is open and to close the same before disengagement, while traveling in rear of each actuator 4:4: is a projecting Aflange or clutch member 45 secured to one of the links and so arranged as 4T that is so positioned on a yoke shaped bracket L17 as to engage the other operating arm 29 on the shaft 21 of the movable of each gripper and operate the latter to open position, releasing the sheet that may be held between its jaws. Y' y ln the region of the supply table 13 the guides 31 for the grippers are restricted against the passage of the guiding extensions 30 on the latter by means of yielding plates -lS having wear plates or facings i9 of suitable material, which plates constitute a 'wall of each guide for a portion of its length and are pressed resiliently toward the opposite wall by means of springs 50 on posts 51. The resistance offered by these plates isnot sufficient to prevent the travel of the grippers when engaged with suiiicient power, but they act on'the other hand as friction brakes that cause the grippers to halt immediately as soon as releasedat this point from their driving mechanism.

ln the operation of the device it will be borne in mind, as before stated, that in the present embodiment there are employed three grippers, two traveling actuators 4111 on the carrier 32 and two clutch elements 45 on the latter. Referring to F ig. 6, when one of the grippers reaches the delivery end of the bed, its path of travel continues beyond that of the carrier 32 which moves coincidently therewith most of the time and hence the flange or clutch element l5 leaves the shoulder i6 as it passes onto the sprocket 35 and the carrier 32 and the conveyer lo, for the grippers, at each side ofthe machine are disconnected for a space so that while the carrier continuesA the conveyer stops. At this point one of the other grippers is on the back trip beneath the bed of the machine, as indicated at 14: in Fig.V 1, while the third oneis in a position adjacent to` the supply table 13, as shownfat 14: in F ig. 2. .lust at this point the last mentioned aw has come beneath the friction brakes i8- and is thus instantly halted without any lost motion, the jaws being open. There ensues a short period of rest on thepart of the conveyer 15 and all of the grippers which gives the operator an opportunity to insert the edge of a sheet from the table 13 between the jaws of the last mentioned gripper. About the time this is accomplished one of the actuating pins 44 on the continuously moving carrier 32, strikes the arm 28 of the movable jaw, as shown in Figs. l1 and 12, and closes the latter upon the sheet. The brake device 4S offers sufficient resistance to hold the gripperI against the engagement of this actuating pin 44 until it has performed its function of closing the jaws. Immediately thereafter the clutch member 45 follows along and engages the shoulder 46 of the gripper so that it is carried beneath the printing cylinders and beyond to the delivery mechanism. When this particular gripper reaches the position shown in Fig. 6, the stationary actuating projection 47 on the frame engages the arm 29 on the shaft 21 of the movable jaw and rotates the shaft in the opposite direction, opening the jaw and releasing the sheet. The clutch member 45 at about the same time travels onto the adjacent sprocket of the carrier leaving the gripper and halting all three grippers and their conveyer for another space, the

gripper which was beneath the bed, as appearing in Fig.` 1, being then 1n a position adjacent to the supply table 13 and so the cycle of operation continues.

At the time the gripper is opened to release the sheet, as in Fig. G, the latter has already advanced upon the rollers 13 of the delivery mechanism, which, in the present embodiment, are provided with sprockets 52 at their ends that coperate with the endless chain carrier 32 to be continuously driven thereby so that the sheet is pushed off the end of the machine and there taken care of in any desired manner.

Suitable guides 53 are preferably provided beneath the bed of the machine to support the slack stretch of the flexible conveyer belt 15 and the grippers carried thereby and the lower stretch of the chain carrier 32 may also be supported by channel pulleys 54 or equivalent devices.

Of course, I do not limit myself to the use of any particular number of grippers on the Iconveyer as a skilled mechanic could arrange for the employment of a greater or less number, and I also contemplate that the mechanism can be utilized for other purposes than to feed a printing press.

I claim as my invention:

1. In a sheet feeding device, the combination with a traveling gripper havingopen and closed positions, of a continuously moving, flexible, endless carrier traveling in parallelism to and in the same direction with the gripper, and an actuator thereon for operating the gripper to one of said positions at predetermined intervals.

2. In a sheet feeding device, the combination with a traveling gripper movable in one direction in a fixed path, of a continuously moving, flexible, endless carrier arranged to parallel the path of movement of the gripper and a clutch member thereon for intermittently interlocking `with and driving the gripper.

3. In a sheet feeding device, the combination with a traveling gripper movable in a fixed path and having open and closed positions, of a continuously moving endless carrier, an actuator thereon for operating the gripper to one of said positions and a clutch member on the carrier following in rear of the actuator and adapted to move the gripper in its path.

4. In a sheet feeding device, the combination with a traveling gripper movable in a fixed path and having open and closed positions, of a continuously moving endless carrier, a clutch member thereon movable into and out of interlocking engagement with the gripper to move the latter intermittently with the carrier and an actuator on the carrier arranged to operate the gripper to one of said positions while the latter is at rest.

5. In a sheet feeding device, the combination with an endless conveyer and a gripper thereon having open and closed positions, of a continuously moving endless carrier, a clutch member thereon adapted to impart movement to the conveyer and an actuator on the carrier for operating the gripper to one of its positions.

G. In a sheet feeding device, the combination with a frame, an endless conveyer and a gripper on the latter having open and closed positions, of a continuously moving endless carrier, a clutch member thereon adapted to intermittently operate the conveyer, an actuator on the carrier for operating the gripper to closed position when the conveyer is at rest and an actuator on the frame for opening the gripper while the conveyer is in motion.

7. In a sheet feedingdevice, the combination with a frame, a printing couple, a feed board at one side of the latter anda delivery mechanism at the other, of a conveyer, a gripper thereon movable in an endless path from the feed table, through the couple to the delivery mechanism and back again, said gripper having open and closed positions, a continuously moving endless carrier, a clutch member thereon adapted to intermittently operate the conveyer and to halt the gripper adjacent to the feed board, an actuator on the carrier for operating `the gripper to closed position when the latter is at rest and an actuator on the frame for opening the gripper adjacent to the delivery mechanism after passing the printing couple.

8. In a sheet feeding device, the combination with a frame, a bed, an endless conveyer, and a plurality of grippers carried thereby, each movable to lopen and closed positions, said grippers being adapted to travel in a path above and below the bed, of

an endless carrier, a clutch member thereon movable in a path coincident With that of the conveyer for a portion only of the travel of the latter, andadapted to interlock with the grippers one at a time to cause the latter and the conveyer to move intermittently, the grippers being so arranged that as one leaves the path of the carrier and the clutch member another is arrested at one end of the bed, a delivery mechanism at the other end of the latter, an actuator on the frame adjacent to the delivery mechanism for operating one gripper to open position as it leaves the path of the clutch member, and an actuator on the carrier for closing the other gripper duringits interval of rest.

9. 1n a sheet feeding device, the combination With an endless conveyer Vand tivo grippers thereon, movable in an endless path and operable to open and closed positions, of an endless carrier, a clutch element thereon movable in an endless path coincident with that of the grippers for a portion only of the travel of the latter, and adapted to engage the grippers to impart intermittent movement to the carrier, a stationary actuator for opening a gripper as it leaves the path of its clutch member and an actuator on the carrier for closing the other gripper as it stands at rest.

10. n a sheet feeding device, the combination with a bed, a conveyer for transporting sheets along the bed and delivery rolls at one end of the latter, of an endless chain provided with a clutch member for imparting intermittent movement to the conveyer and sprockets on the delivery rolls coperating with the chain.

11. 1n a sheet feeding device, the combination With a conveyer, of means for driving the same intermittently in the same direction and a brake device for arresting the conveyer when disconnected from the driving means, said brake device being adapted to be overcome by the driving means.

12. In a sheet feeding device, the combination with a bed having a guide and a conveyer provided with members coperating with the guide, of means for driving therconveyer intermittently in the same direction and a friction brake device on the guide for halting` the conveyer .when disconnected from the driving means, said brake device being adapted to be overcome by the driving means.

13. In a sheet feeding device, the combination With a bed having a guideway and a conveyer provided With projections cooperating With the guideway, of means for driving the conveyer intermittently in the same direction and a friction brake device for halting the conveyer when disconnected from the driving means comprising a yielding spring-pressed plate arranged to restrict the guideway against the passage of the projection, said brake device being adapted to be overcome by the driving means. Y

14. In a sheet feeding device, the combination with an endless conveyer for the sheets provided With Vgrippers, of a continuously moving endless carrier supporting Wheels therefor, one of which is yarranged Within the loop ofthe conveyer so that the latter travels beyond the carrier after traveling for a distance therewith, and a clutch member on the carrierV interlocking with the conveyer to drive the latter intermittently, said member being `arranged to disconnect itself from the conveyer when `it reaches its said supporting Wheel.

15. ln a sheet feeding device, the combination with an endless conveyer provided with grippers having-open andrclosed positions and supporting Wheels for the conveyer, of a continuously moving endless carrier, supporting vvheels therefor, Vone of which is arranged Within the loop of the conveyer so that the latter travels beyond the carrier after traveling for a distance coincidently therewith, a clutch member on the carrier interlocking with the conveyer to drive the latter intermittently, said member being arranged to disconnect itself from the conveyer when it reachesits said supporting Wheel and a stationary actuator arranged to coperate with the grippers on the conveyer after the latter moves beyond the carrier to operate the same to one of said positions.

16. In a sheet feeding device, the combination with a traveling conveyer having intermittent movement in one direction, of a gripper therefor comprising a fixed jaw and an oscillating javv having open and closed positions, an actuator movable in the saine direction as the conveyer adapted to engage Vand oscillate the javv in one direction and a stationary actuator for oscillating it in the other.

17. In a sheet feeding device, the combination With a bed and a gripper comprising a stationary and a movable javv extending across the bed, of an operating arm'for moving the movable jaw to one of said positions, a travelingrcarrier and a pair of abutments on the carrier, one adapted to cooperate'ivith the said arm to actuate the movable jav7 and the lother to coperate with the xed j avv to move the gripper along the bed.

18. In a sheet nation with a traveling gripper having open and closed positions and a member thereon for operating the same, of means for driving the gripper intermittently, a bralre device for halting the latter When disconnected from its driving means and a travelfeeding device, the combiing actuator' coperating With the operating member of the gripper While the latter is held by the brake device. a

19. In a sheet feeding device, the combination with a traveling gripper' having open and closed positions and a member thereon for operating the same, of a continuously moving endless carrier, a friction brake arranged in the path of the gripper', an actuator on the carrier coperating with the operating member of the gripper to operate the latter to one of said positions While the gripper is held by the friction brake and a clutch member on the carrier following after the actuator and subsequently coperating with the gripper to carry it on against the resistance of the friction brake.

HENRY W. MORGAN. Witnesses:

RUSSELL B. GRIFFITH, LUCY A. VAN COURT.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C.