US692840A - Sheet-delivery apparatus. - Google Patents

Description

Patentedfrb. 1n, |902' G. P; FENNER. SHEET DELIVERY APPARATUS.;4

(Appliation led May 16, 1901.\

WITNESSES .l

Vriers-known in the art.

UNHED STATES GEORGEP. FENNER, OF NEW' LCNDON, CONNECTICUT.

SHEET-DELIVERY APPARATUS.

cPncIrrcArioN arming-part gf Letters Patent No. eea-84o, datei'retmary'11',' 19o2.

To @ZZ whom t may concern:

Be it known that I, GEORGE P. FENNER, a

citizen of the United States, residing at New Londony'in the county of New London and State of Connecticut, have invented new and useful Improvements in Sheet-Delivery Apparatus, of which the followingis a specification. A.

By means of this invention sheets coming from a printing-press can be suitably delivered'with the face or printed side down, if desired; and the invention resides .in certain novel features of construction set forth in the following specification and claimed, and illustrated in theannexed drawings, in Which- Figure l is a side elevation of a sheet-delivery apparatus. Fig. 1. Fig. 3 shows a detail from the side opposite to that exposed in Fig. 1. Fig. 4 shows a modification. n y

In the construction shown sheets coming from a press or impression-cylinder are carried along between two aprons. apron,it is manifest, includes any equivalent*such as tapes,or ribbons", or sheet-car- The impressioncylinder is indicated at a and aprons at b. From the apron pairV b the sheet passes to sheet-delivery apron or tapes c, having an..

end or edge fixed or secured to van immovable bar or cross-piece d. `A reciprocating-roller is shown at e and is adapted to'wind the apron. The roller e is rotated in one direction by a spring after the manner of a well-` known class of window-shade roller, so as to continually tend to keep the apron c taut and to cause said apron to be wound about Vthe roller when the latter moves toward the iixin gpoint CZ of theapron or the point at which the fixed end of the apron is secured. The movable end of the apron being secured to roller e, such apron is wound about the 4roller as the latter travels back or toward cylinder a. A delivery-roller f travels .with o r is mounted on the reciprocating carriage of roller e. It should be noted that the rollers efare not actually in contact with'one another. Asheet from apron c, carried between delivery-roller f and pressure roller or disks g, will be bent or turned by the reverser or curler 7i, so as to be reversed or land printed side down on the receiving-board. The re- `up the apron c.

Fig. 2 is a plan view of VThe termA Application filed May 16, 190,1. Serial No. 60,535. (No model) verser or curler is formed by a set of-bent or concave fingers, which are mounted or fixed to a shaft or cross-bar extended across the carriage m ormounted on the side pieces or bracket n. 1

The rollerf is rotated in one directionby ratchet and pawl z' 7c, Fig. 3. The pawl 7c is carried by gearZ,-geared to roll e, which winds The partsfg h can be snitably mounted on or form part of abracket n, and by dismonnting the bracket off the carriage the reversingof the sheet is dispensed 7 The reversing device can thus with. y

plied or not, as called for.

Say the 'roller e is near the fixed Vpoint Lci and stargts forward or away from such piece d. The roller f travels not onlyT with said roller e, but in addition is rotated by they gear Z, driven by roller e, so that the' sheet whose leading edge has been taken between such delivery-rollerismoved 'with-'increased` Y speed, so as to slide off the apron c and fall on its face or prin-ted side' on the receivingboard-that is to say, before the deliveryroller has taken hold of the sheet orso long as the latter is only fed byapron b such sheet will travel at the speed of such apron, but after the delivery-roller has taken hold of the sheet the latter is drawn ofi:` the apron by the increased speed im parted to the sheet by such roller.

The device can be modified. The curler or reversing portion h, instead of being in the form of a rigid plate or fingers, can be formed of an apron or tapes,'Fig. et.,l VGuide-rollers o can cause the reversing-tape to clasp or suitably extend about. the delivery-roller-f. It

,has also been noticed that the presser-roller g, if made to contact with theupper part of the presser-rollerfat a point forward of the axis of such roller, will cause the sheet to bend or slightly deiiect downward as it passes from the roller f. Such downward bending of the leading edge of the sheet-,combined with the weight of the sheet and the resistance of the air as it passes from the forwardly-moving rollerf, tends to cause such sheet to reverse or land on its face, even without the application of curlers h. The dispensing with curlers or reversers is, however, not deemed advisable unless the machine runs at corn-` paratively low or moderate speed.

IOO

The ratchet and pawl on roller f are not essential, butserve to relieve the spring on roller e, as the rotary motion of this rollerjs produced in one direction by a spiral spring, which is wound up. After the sheet is delivered it is immaterial in which direction roller f rotates.

The carriage of roller e can be suitably reci procated or driven, as by rack m, (shown as forming a side of the carriage.)

What I claim as new, and desire to secure by Letters Patent, is

l. Asheet-delivery apron, a roller for winding and unwinding said apron, means for effectin g the reciprocation of said roller, means for holding a part of the apron against reciprocation with said roller, a delivery-roller arranged to travel with and to receive a sheet from said first-mentioned roller, and a sheetreverser arranged to coact with said deliveryroller.

2. A sheet-delivery apron having a fixed end, a reciprocating',r roller about which said apron is wound, and a delivery-roller and reversing-guide made to reciprocate with the `first-named roller, a ratchet and pawl for rorating the delivery-roller, and an actuatinggear for the ratchet and pawl.

An impression-cylinder, a sheet-delivery apron having a fixed and a movable end, a reciprocating roller for the movable end, a deond gear carried by the reciprocating roller and made to engage the ratchet-pawl gear.

4. A sheet-delivery apron, a roller for winding and unwinding said apron, means for effecting the reciprocation of said roller, means for holding a part of the apron against reciprocation with said roller, a delivery-roller arranged to travel with and to receive a sheet from said first-mentioned roller, and a sheetreverser having a coneaved face arranged contiguous to the periphery of said deliveryroller.

5. A sheet-delivery apron, a reciprocating roller for winding and unwinding one end of the apron, a delivery-roller made to reciprocate with the first-named roller, a reversing tape or tapes extended about the deliveryroller, and guide-rollers for the tape extended about the delivery-roller.

In testimony whereof I have hereunto sot my hand in the presence of two subscribing witnesses.

GEORGE P. FENNER.

"Witnesses:

FRED S. ENGLISH, WILLIAM XV. IR'IsH.

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