US1640768A - Carry off - Google Patents

Description

Aug( so, 1927. 1,640,768

l v C. J. GU l BERLET r11 Pw',

Il IIl www ll'llA l lll F Ch arles J. @ber/@ y 73er 'www' MM .Anbrn y Patented Aug. 30, 1927.

llllllllll) STATES PATENT OlFFltlE.,

CARRY OFF.

Application filed-December A31, 1923. Serial No. 683,832.

rlh'e carry off hereinafter described is in tended to meet the requirements of plate printing presses. The product of these presses is not stacked but is laid out, after it has been through the press, so that the printed portions ot each sheet are uncovered. The printed area is usually small, and 1ndeed Lthe sheets themselves are almost invariably of much less size than are the sheets inary printing. The accepted machines for carrying ol'll the product ot plate printing presses carry this product off horially and across the face of the press and with the printed sheet face downward, and then ldeposits them on a fly that reverses them and places them face upward upon a.

moving bed, which usually is given a step bv vstep Forward movement, so that each slieet lies a little back of the one delivered to the bed previously to it. ils the fly must lie beneath the carrier while the latter moves over and delivers the printed sheet and gets out ot the way so that the carrier Vcan turn the fly has to move rapidly. Hence the sheet is likely to slip along the fly sticks; especially when a stif'l or smooth material is being'used, 'such for instance as smooth bristol board. have accordingly provided the fly sticks with suction devices that hold 550 the sheet on the sticks while the fly is turning with the sheet, (the loaded turn) and release it so that it falls on the bed to which it is delivered by the fly. i

Fig. l is a front elevation of the device; Fig'. 2 is a plan view of the same; Fig. 3 is a greatly enlarged plan view of the fly and the parts of the mechanism immediately around it; Fig. l is a section of a fly stick on'the line 4 4 of Fig. 3; Fig. 5 is a plan view of a step by step mechanism; Fig. 6, is a section of a sucker; Fig. 7, is a section of a fiy stick on the line 7 7, of Fig. 3; Fig. 8 is an .elevation of a sucker, and Fig. 9 is an elevation of a pluO'.

rllhe press is an ordinary form of a pla-te printing press with the usual form of' plunger, neither of which form any portion of my invention. The carry olf has the carrier mechanism mounted on this plunger (not shown) which consists of the guides, 90, the horizontally reciprocation carriage 91, the suction litters, 92, 92, with their air eX- hausting tubes and their suckers 94, the contact directly with the paper or card in order to remove it from the press. When thecarriage 91 is-delivering the paper to the fly,

surface of the fly sticks.

tion when the fly has turned over the sheet,

and has it above the tabl-e so that it fal on the table. ln practice, l make the fl shaft, 22, hollow, and connect it with a suction device, operating intermittently, and provide ports, 23, leading into air passages, 40, running longitudinally in the sticks, 7, from which opening', l-l, entend the upper l find it 'l advantageous to place in these openings, el, suckers having the face, BO, and the stem,

32, perforated with the hole, 3l, and'also to i make the openings, 41, more numerous tha is needed, and to ll those not needed with plugs, having the flange, 33, and unperf'orated stem, 34. The sticks, 7, can be adjusted around the shaft, 22, and set in position by the set screw, 34. The housing, 16, can adjoin an abutment, 18, vhaving a chamber, 19, that communicates with the interior of the tube forming the shaft, 22, and with the nozzle, 17, adapted to have a flexible tube, 66, fitted over it, that leads to the'air exhausting device. The fly is turned, very conveniently, by a rack, 60, gearing with the wheel, 20, set on shaft, 22, -on the outside of the housing, 21. The rocker arm, 61, on shaft, 3, serves to reciprocate the rack, 60, and the rocker arm, 62, to reciprocate the plunger in the exhaust? mechanism, 63, the two being so timed that the turn of the fly and the active action of the suction will coincide and will cease substantially together.

A movable bed to receive the cards from the fly is provided. It has a step by step movement so that each of the cards or sheets is deposited a little back of the preceding one, so that the newly printed surface will not be smeared. It is usually made so that the amount of this step movement can be adjusted. In practice it is carried on a table and has the series of rollers, 190, carryingthe tapes, 191, and is moved by worm engaging Wheels7 73. The spindle, 18, has the Worms 72, engaging with the Wheels, 92, and is driven by the Worm, 71, engaging With the Worm driving gear Wheel, 7 3. This latter is set on suitable shaft, 3, and is driven by a pawl and ratchet movement from the rock shaft, 4. To malte the movement of the ratchet wheel, 7st adjustable, the arm carrying the pawl 77, can be made in two pieces; the part, 75, secured to the shaft, 4, and the part, 70, to the paivl can be adjusted to each other by means of the openinfs, 7 9, and pinss 7 8. rlhe Whole can be held by a frame, 2, forming the frame of a tabl-e.

No matter how swiftly the fly turns or how slippery the card, the latter will be deposited on the table in the proper position.

l claiml.. ln a carry off for plate presses, the

combination With a horizontally moving carriage anu a moving bed having a step by step movement on which bed printed material is deposited by a'fly, of a vfly receiving the printed material from the carriage and depositing it upon the bed the sticks of which fly are provided with suction devices actively operating When the fly is turning and released when it is positioned above the bed.

2. rhe device as defined in claim l, with this additional elementz-the fly remaining stationary so long as the carriage is in a position over the fly sticks.

3. In a plate press carry off, the combination with a carrier, of a fly having a hollow shaft and hollow fly sticks extending therefrom, said fly sticks having suction open` ings therein, the said carrier carrying` the sheets from the press and depositing them on the fly.

4. In a plate press carry off, the combination with a carrier having suction devices thereon, of a fly having` a hollow shaft and hollow Hy sticks extending therefrom, said fly sticks having suction openings therein, and air exhausting` devices for producing` the suction in the fly and carrier, said car" rier carrying the sheets from the press to the fly. Y,

5. ln a plate press carry olf, the combination With a reciprocating carrier having suction devices thereon, of liy carrying suction devicesq and air exhausting carriers for producing the suction in the fly and carrier, said carrier conveying the sheet frommthe carrier to the fly. y

G. The device as defined in claim 3 With the following additional elem-ent, namely zand a movable bed upon which the sheets are deposited by the ily. y

7. The device as defined in claim 4l, with the following;` additional element, namely and a movable bed upon Which the sheets are deposited by the fly.

8. The device as defined in claim 5 with the following additional element, namely and a movable bed upon Which the sheets are deposited by the fly.

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