US759972A - Sheet-registering mechanism. - Google Patents

Description

PATENTED MAY 17, 1904.

T. 0. DEXTER. SHEET. REGISTERING MECHANISM.

APPLIUATION FILED SEPT. 17, 1903.

4 SHBBTB-SHEET 1.

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UIIIIIIIIN I I III" PATENTED MAY 17, 1904. T. G. DEXTERFI SHEET REGISTERING MECHANISM.

APPLICATION FILED SEPT. 17, 1903- 4 SHEETS-SHEET 2.

M *w H 351E 15 I W x m n "Imam: "I ll No. 759,972. PATENTED MAY 17, 1 904.

T. G. DEXTER.

SHEET REGISTERING MECHANISM. APPLIOATION FILED sgrw. 17, 1903.

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UNITED STATES Patented May 17, 1904.

PATENI OFFICE.

SHEET-REGISTERING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 759,972, dated May 17, 1904.

Application filed September 1'7, 1903. Serial No. 173,499. (No model.)

To all whom it may concern:

Be it known that LTALBOT C. DEXTER, a citizen of the United States, residing-at Pearl River, in the county of Rockland and State of New York, have invented certain new and use- 'ful Improvements in Sheet-Registering Mech anlsm, of whlch the following 18 a speclfication.

In Patent No. 669,724, granted to me March 12, 1901, for sheet-conveyer frames, I have disclosed and claimed a side-registering mechanism for registering the successive sheets of paper which are passed from an automatic paper-feeding machine to a printing-press or other machine designed to operate upon the sheets. The present invention may be considered an improvement upon the side-regis tering mechanism covered by said patent, the object of the present invention being to improve the construction of said mechanism.

The main feature in the present case is the provision for automatically withdrawing the registering-face of the side-registering mechanism from the edge ofthe sheet immediately after a sheet has been registered to relieve the sheet from engagement of the registering-face while it is being drawn ofl of the feed-board by the printing-press or other machine. The withdrawal of the registering-gage during the passage of the sheet from the feed-board is also important in relieving the gage-faee from the wear which it is subjectedto if left in contact with the sheet while the sheet is in modrawal of the registering-gage after the sheet is registered is practlcall y necessary to prevent the tearing of the rough edge of the sheet.

In order that my invention may be fully understood, 1 will first describe the same with reference to the accompanying drawings andafterward point out the novelty with more particularity in the annexed claims.

' In said drawings, Figure 1 is a detail side.

elevation of a sheet-conveying frame, representing my improved sheet-registering mechanism in operative position thereon. Fig. 2

In feeding deckel-edge sheets the withsimilar view looking from the side of the conveyer-frame toward the center. vertical transverse sectional view of the registering mechanism. Figs 6, f7, and 8 are detail views of parts of the improved mechanism.

As fully explained in my above-named patent,No. 669,72 1, I arrange two side-registering mechanisms in reverse positions in relation to each other near the opposite sides of the conveyer-frame. This arrangement is important for the reason that in the operation of feeding paper to an ordinary printing-press the sheet must be passed through the press twice for printing both sides, the sheet being registered at one side when it is fed to the press the first time and turned over sidewise, so that the same edge can be registered at the opposite slde of the conveyer-frame when t is fed to the press the second time, the same front edge of the sheet being presented to the front erating mechanism, by which one or the other of the registering mechanisms may be employed, depending upon which side of the sheet is to be registered. The general plan of operation of the two sets of registering mechanism being fully explained in my abovenamed patent, I will confine my description in the present case to theimproved structure of one of said mechanisms.

5 is the feed-board, 6 theimpression-cylinder, and 7 the front gages, of a hinting-press.

8 is part of theframework of a paper-feeding machine, and 2 is the conveyer-framc, which transfers the successive sheets from the automatic feeder to the printing press.

Each of the transversely-movahle bars 1 of the side-registering mechanism has rigidly secured to its outer end a bracket 10 and freely journaled upon a set-screw 11 inside of the Fig. 5 is a bracket 10 an antifriction-roller 12. The purpose of bracket 10 and roller 12 will presently be explained.

15 isthe registering plate or bracket, formed with integral guide-lugs 16, which embrace the reciprocating bar 1 and enable the plate or bracket 15 to be adjusted inwardly and outwardly upon the bar. The registering mechanism proper is mounted upon the plate or bracket 15, as will presently be explained.

is an auxiliary bracket or yoke formed with integral lugs 21,-which embrace the bar 1, and 22 is a set-screw threaded through the yoke 20 in position to engage the bar 1 for rigidly securing yoke 20 in the desired adjusted position upon the bar, A screw 25 is rigidly secured at 26 to an arm 27, projecting up from the plate or bracket 15, said screw 25 extending horizontally through a central opening formed in the yoke 20. Adjustingnujts3O and 31 are threaded upon the screw 25-upon opposite sides of the yoke 20 forthe purpose of adjusting the registering mechanism inwardly and outwardly upon the supporting-bar 1. In adjusting the mechanism the set-screw 22 is loosened and the registering plate or bracket 15 and. connected yoke 20 are moved inwardly or outwardly upon bar 1 to bring the registering mechanism to the approximate position desired. The screw 22 is th'enscrewed in to clamp the yoke 20, and by means ofnuts 30 and 31 the registering mechanism is accurately moved to the exact position for properly registering the sheets.

Detachably secured to the upper face of the registering-plate 15 is a bracket 35, secured toplate 15*by means of the hand-screw 36. Thisbracket 35 has two transverse bearings 37 and 38, two longitudinal bearings 39 and 40, and a hook-bearing 41, all for the purpose which will presently be explained.

is the. main operating rock-shaft of the registering mechanism,jsaid shaft being freely journaled in the bracket-bearing 10 at one end, the bracket-bearing 46 at its inner end, and the bearings 37 and 38 between its ends.

A, double rock-arm 50is splined to the shaft 45 between the bearings 37 and 38, said rockarm having a lateral pin 51 at one end, upon which is freely journaled the eyebolt 52, supportingaspring 53 and passingfreely through a pivot-block 54, which is freely journaled in the hook-bearing41 of the supporting-bracket. The rock-arm 50 carries at its opposite end a laterally-projecting pin 55, which engages the elongated slot56, formed in the upper end of a link 57, which is in turn freely journaled at its lower end upon a pin 58, projecting from the inner face of a lug 59, formedintegral with the gripping-jaw 60. The gripping-jaw 6O isformed upon the free end of a curved arm or lever 61, which is freely journaled at 62 upon a vertical web 63of the bracket 35. By rocking the shaft 45 the gripper 60 is raised from or clamped against the registering-plate 15, the spring-actuated eyebolt 52 operating between the pivoted block 54 and, the lever 50, causing a snap action in the opening and closing of the gripper, as explained in my above-named patent. By reason of the slotted-link connection 57 between the operatinglever 50 and the gripper-jaw proper I amenabled to confine the movement of the gripper-jaw to the slightest possible extent, suificient only to free a sheet of paper, the main part of the movement of the lever 50 to allow for its snap action past its center being taken up by the movement of'the pin 55 in the slot 56 of the link 57. Directly beneath the gripper 60 the plate 15 is cut out to receiveasteel wear-plate ,65, against which the gripper-jaw operates or between which and the jaw the sheet is clamped.

7 O is the usual curved guiding-shoe, rigidly mounted at 71 and 72 upon the bracket 35. This shoe guides the forward corner or edge of the moving sheet into position above the registering-plate 15, the shoe being cut out at 3 to allow for the operation of the registering-gripper 60.

At one side of the gripping wear plate 65 the registering-plate 15 is cut out or slotted, as shown at 75,: for the reception of the sideregistering gage 76. This gage 76 is formed with a steel wearing-face 7 6 and is rigidly mounted upon a depending rock-arm 77, secured to the short rock-shaft 78, which is freely journaled in the bearing 39, and 40 of the bracket 35, A rock-arm 79 is secured to the shaft7 8 adjacent to the bearing 39,, said arm 79 being formed with a web or projection 79*, which rests directly beneath the gripperoperating lever 50. AJtension-spring 80 is coiled upon theshaft 7 8, one end engaging a part of the bracket 35 at 81, while the other end engages a pin 82, projecting from the rockarm 79. This spring 80 tends to hold the registering plate 76 in its inner registering position that is, with its registering-face 76 in engagement with the inner wall of the slot or cut-way portion 75. In this normal registering position it will be observed that the registering-face projects above the lower gripping-face 65 of the registering-plate 15 to engage the edge of a sheet when it is moved inwardly for this purpose.

is one of a pair of longitudinally-movable cam bars whose inclined face 85 operates upon the antifriction-roller 12 for moving the register-supporting bar 1 outwardly against the tendency of the spring 3.v This cam-plate 85 is formed with lugs 86 and 87, in which are threaded the adjustable tappetscrews 88 and 89, which are adapted to engage the in or web 90, secured to the operating rock-shaft 45 and projecting upwardly therefrom into the path of said tappet-screw. The

reciprocating cam-plate85 has pivotally connected to its rear end a rod or pitman 95,

which is journaled to the lower end of a lever 96, pivoted at 97 upon the feeder-frame 8 and carrying at its upper end an antifriction-roller 98, which operates in peripheral contact with a cam 99, formed with a main low portion 99, an intermediate portion 99", and a high portion 99. This cam 99 is mounted upon one of the shafts of the feeding-machine, so that in its rotation it will cause the cam-plate 85 to operating mechanism.

, moved with the other parts of the registering mechanism supported upon the bracket 35.

WVhen the mechanism is thus removed, the sheet is entirely free at its side opposite to the register edge.

The operation of the device will be clear with a few words of explanation. The forward movement of cam-plate 85 allows the antifriction-rollerlZ to travel down the inclined face 85 under the action of spring 3. This action takes place immediately after a sheet has reached the front guides of the printing-press, its registering edge being properly presented between the registering-plate 15 and the guideshoe 70. As the registering mechanism moves inwardly the registry edge of the sheet will engage the registering-face 7 6 of the gage 76, the gripping-jaw 60 being of course elevated while this is taking place. As the registering mechanism reaches the limit of its inward movement the tappet-screw 88 will be brought into engagement with the fin 90,which will cause the shaft to be rocked forwardly, the spring 53 throwing the lever quickly past its center of movement to force the gripper'jaw into engagement with the edge of the sheet which rests in contact with the registering-gage 76. At this point in the operation the antifriction-roller 98 is in contact with the low portion 99 of the cam. Immediately after this part of the operation the intermediate portion 99" of the cam draws the cam-plate rearwardly, with the result that the bar 1, carrying the registering mechanism and the gripped sheet, will be quickly moved outwardly or toward the side of the conveyorframe, and when the registering mechanism reaches the limit of its outward stroke the tappet-screw 89 will be brought into contact with the fin 90 for rocking shaft 45 rearwardly to reverse the action of lever 50 and open the gripper. Immediately after the sheet has been released by the gripper the high portion 99 of the cam engages the antifriction-roller 98 for giving the cam-plate 85 a slight further backward impulse, with the result that the shaft 45 will be rocked rearwardly an additional impulse to cause the rock-arm 50 to engage the rock-arm 79 and force the gage member 76 outwardly away from the registering edge of the sheet. The impression-cylinder grippers then take hold of the properly-registered sheet and draw it from the feed-board, the high portion 99 of the cam 99 being of suflicient extent to hold the registering-gage 76 away from the registered edge of the sheet during the entire time that the sheet is being carried from the feed-board by the press. In the opening movement of the gripper-jaw the rock-arm 79 acts as a stop for the downward movement of rear end of operating-arm 50, the spring 80 being snfiiciently strong to sustain arm 79 forthis purpose.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is

1. In a mechanism of the character described, the combination of av reciprocatory sheet supporting and registering plate, with a gripper movable toward and away from said plate, a rock-shaft, means for operating said rock-shaft, an arm secured to said rock-shaft, and a link connecting the gripper and arm and having a pivotal connection with one of said parts and a pin-and-slot connection with the other of said parts,.substantially as set forth.

2. In a mechanism of the character described, the combination of a reciprocatory sheet supporting and registering plate, with a pivdtally-mounted gripper-arm carrying a paper-gripping head which is movable toward and away from said plate, a rock-shaft, means for operating said rock-shaft, an arm secured to said rock-shaft, and a link connecting the gripper and arm and having a pivotal con nection with one of said parts and a pin-andslot connection with the other of said parts, substantially as set forth.

3. In a mechanism of the character described, the combination of a reciprocatory sheet supporting and registering plate, with a gripper movable toward and away from said plate, a rock-shaft, means for operating said rock-shaft, an arm secured to said rock-shaft, and suitably connected with said gripper, a sheet-registering gage movable into and out of registering position with relation 'to said plate, and means operated by said rock-shaft for moving said gage out of registering position, substantially as set forth.

4.. In a mechanism of the character described, the combination of a reciprocatory the gripper in open position and the gage in registering position, then close the gripper and withdraw the plate with the gripper closed, and finally open the gripper and move the gage back out of registering position to free the sheet, substantially as set forth.

5. In a mechanism of the character described, the combination of a reciprocatory sheet supporting and registering plate, with a movable sheet-registering gage supported in operative relation to said plate, a gripper movable toward and away from said plate, and a rock-shaft operatively connected with the gripper and registering-plate, substantially as set forth. l

6. In a mechanism of the character described, the combination of a reciprocatory sheet supporting and registering plate, with a sheet-registering gage, a rock-shaft upon which said gage is mounted, a controlling rock-arm upon said shaft, a spring holding said gage normally in registering position, a gripper movable toward and away from said plate, a gripper-operating rock-shaft, an arm or lever mounted upon the gripper-operating rock-shaft and adapted to engage and actuate the gage-controlling rock-arm, and a connection between said arm or lever and said gripper, substantially as set forth.

7. In a mechanism of the character described, the combination of a reciprocatory sheet supporting and registering plate, with a gripper movable toward and away from said plate, a rock-shaft carrying a rock-arm, means I for operating said rock-shaft, a connection between said rock-arm and said gripper, a double-acting spring device engaging said rockarm for holding it in either shifted position, a movable gage mounted upon a rockshaft and adapted to be shifted into and out of registering position with relation to the plate, a spring normally holding said gage in registering position, and an arm on the gage rockshaft extending beneath the gripper-operating rock arm, the gage holding spring being stronger than the spring of said double-acting spring device, and said arm of the gage rockshaft acting as a stop for the gripper rock-arm and as a means for withdrawing the gage from the edge of the sheet, substantially as set forth.

I TALBOT (J. DEXTER. Witnesses:

J. GREEN, WM. E. KNIGHT.

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