US828281A - Feed for printing-machines. - Google Patents

Description

No. 828,281. EATENTED AUG. 7, 1906.

W. EULLAED. A EEED E08 PRINTING MACHINES.

APPLICATION FILED JULY 14, 1903.

2 SHEETS-SHEET 1.

PATENTED AUG. 7, 1906.

` W. EULLARE. EEED EOE PRINTING MACHINES,

APPLICATION` FILED JULY 14, 1903,

2 SHEETS-SHEET 2.

A neno/L WILLIAM FULLARD,' OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO UNITED PRINTING MACHINERY CO., OFl BOSTON, MASSACHUSETTS,

CORPORATION OF MAINE.

FEED Fon PRINTING-MACHINES.

Specification of Letters Patent.

Patented Aug. 7, 1906.

Application led July 14,1903. Serial No. 165,487.

. To all whom it may concern.-

Ass

Be it known that I, WILLIAM FULLARD, a, citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented new and useful Improvements in Feeds for Printing-Machines, of which the following is as'peciica-y tion.

My invention relates to printing-presses; and it consists of an automatic sheet-feed by which sheets of paper may be successively fed to a press.

It also consists ofk means for making a dwell in the movement of such, sheets while over the platen.

It further consists of novel features of/ construction, all as will be hereinafter fully set forth. v

Figure 1 represents a side elevation, partly in section,l of a press provided with'my feed device. Figs. 2 and 3 represent, respectively, a plan and a vertical section of a portion of a chain. Fi 4 represents in vertical section a portion o my device. Fig. 5 represents a rear elevation of the same. Fig. 6 represents a portionA of the chain, showing a modification. Fig. 7 represents an enlarged detail of a portion shown'in Fig.- 6. Fig. 8 represents an enlarged detail of a roll-actuating device.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings, 1 designates a hopper containingy sheets of pa er 2, resting on idler-lrolls 3. A plurality of liooks 4, hav-v ing fingers 5, are secured to a shaft 6, reciprocable by means of a crank 7 and rod 8, actuated to any suitable moving part of the press. Adjacent the rear lower edge of the hopper 1 is a 'hollow roll` 9, mounted ony a shaft 10, which is eccentrically mounted, on which is a gear-wheel 11, meshing witha like wheel 12 on a shaft 13, which carries a roll 14.

A sprocket-chain 15 extends from a suitable sprocket-wheel 16 on the main shaft 17 of the press to a sprocket-wheel 11, mounted at the end of the roll 9. The shaft'lO of the roll 9 is eccentrically mounted on abearing 10a.

On a lug 18, proj ectingfrom the bearing 10%, is ivoted an arm 19, having a slot 20, through w ich passes the shaft 13, said arm being adapted to rock the ecccentric mounting of the shaft 10` Without displacing the'teeth of the gear of the two rolls. A friction-roller 21, mounted'on the arm 19, rides on a cam 22 on the shaft 13. The rod or arm 8 is also pivoted on the lug 18 and has a slot 24 engaging with the crank 7 on the shaft 6 and operative against the spring 25, secured to the hooks. i v

Mounted on the roll 9 are ppers 26, normally drawn toward the rolInby springs 27 and thrownout by a caml 28, which is carried'- by an eccentric which is oscillated by the reciprocation of the arm 19, so that the cam 28 is also reciprocated in order to be brou ht at the proper time in suitable contact wit said grippers in order to properly actuate the same. Shown as Within the frame 29 of the press is an air-pump 30, connected by a tube 31 with the interior of the roll 9, from which interior extend radial apertures 32 to the periphery of the roll. Suitable recesses 33 34 in the rolls 9 and 14prevent their interference with the hooks 4. Guides 35 36, adjacent the rolls 9 and 14, lead toA the upper face ofv an endless apron or conveyer.37,-

mounted on idle spur-wheels38 39. The teeth of said spur-wheels engage in a, sprocketchain 40, by which the apron Y37 is carried. At two opposite oints in the chain 40 the links are doubled 1n length by connecting the bars 41 by short rivets 42 instead of the regular cross-pins 43. Engaging with the lower side of the chain 40 is ay mutilated; gear wheel 44, having a special tooth 45, shown as mounted on the main shaft 17.

46 represents the inclinedplaten of the press, which is situated between the upper and lower portions of the endless a ron or conveyer 37, the upper portion of t e conveyer passing directly over the up er surface of the platen and coacting with wihich is the reciprocating bed 47, operated b'y a suitable4 crank, and to which bed is attached a dog 48, adapted to engage with the doubled'links of the chain 40. It will be noticed that the dog by entering the opening in the double links is interposable in the path of movement of the chain, and as it is necessa chain in suitable or normal osition the said dog must engage with said c ain Without deflecting the same from its normal ath.

The inking-rolls49 require no description..

to holdl the` IDO ' sheet of latter is carried between v 19 on'the bearing 10a, so that the ends of the suction-tubes 432 'engage with the lower-most pile of paper 2 in the hopper 1, the

hooks 4 being simultaneously withdrawn and the grippers 26 raised by the cams 28, all asl shown in Fig. 1. Fig. 4 shows the return of the hooks 4, so that the iingersv 5 act to suport the body -of sheets. 2 and. permit the fhrther movement of the lower sheet, which the rolls 9 and 14 and downward to the apron 37, over which it is slid until checked by the stop 54, which has reached a position for that purpose, of Fig. 1` or enga ged bythe grippers A50 of Fig. 6.

The rotation of the mutilated gear 44 is timed so that when the sheet is in proper polsition with respect to the stop 54 its last tooth leaves the chain 4() as or before the bed 47 of the press descends, the dog 48 engaging in the doubled link of the chain 40, thus securing the register of the sheet. After the impression is made' the'bed47 rises, disengaging the dog 48. The rotation of the shaft carrying with it the gear 44 brings the tooth 45 of the gear 44 in position to engage the opposite doubled link of the chain at the 'proper t me, and the chain is given another f advancement, whereby the imprinted sheet is-deposited in any suitable yreceptacle (not shown) at the front of the press.

- It Wil-l be observed that the operation of the feed and of the press is continuous and that the motion of the paper is positive and progressive-fi. e., in an advancing direction l clination of the rear walls of respect to its bottom the only. It will be noted that by reason ofthe inthe hopper with Weight of the superosed sheets does not rest equally on the ower sheet, the forward portion of the sheet carrying less of such weight. When the hopper contains a -large number of sheets, the advantage of this rearward inclination of the hopper with respect toits bottom is very apparent in the facility with which the lower sheet may be detached from the others.

It Will be evident that various changes may be made by those skilled in the art which will come within the scope of my invention, and I do not, therefore, desire to be limited to the exact construction herein shown and described.

.Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, isy 1. printing-press comprising a platen, a

bed, an intermittently-actuated ,carrierapron operative to carry-the sheetsover said platen and meansinterposable in the n ormal path of said apron for positively holding it during impression without deflecting it from such normal path.

2. A printing-press comprising a platen, a bed, an intermittentlyactuated carrierapron operative to carry the sheetsover said platen and means movable in unison with saidr bed for positively holding sald apr'on durin impression.

3. i prmting-press comprising a platen', a bed, va carrier-apron operative to carrythe sheets over -said platen', a chain operatively secured to said apron and means engageable with said chain and-moved in unison with said bed for positively holding said apron during impression.

` 4. A printing-press comprising a platen, a bed, means for supporting a plurality lof sheets, van intermittentlyactuated apron, means for successively depositing suchsheets on said apron and means interposable in the normal path of said apron for positively holding it during impression without deiiecting it from such normal path.

5. A pI'inting-press comprising aplaten, a bed, means for supporting a plurality of sheets, a carrier-apron, means for successivel de ositiner such sheetson said a ron,

means for intermittentlymoving said apron so as to bring such sheets' over said platen and means connected with said bed for positively holding said apron during impression.

6. A printing-press comprising a platen, a bed, means for supporting a plurality of sheets, a carrier-apron, means for successively depositing such sheets on said apron, a mutilated gear-wheel, a chain on said wheel operating to intermittently advance said apron and means engageable with said chain for positively holding said apron during impression.

7. In an automatic sheet-feed, a hollow feed-roll, suction-tubes in said roll, grippers on said roll, an eccentrically-mounted shaft on which'said roll is rotated, and means for moving said shaft in a direction substantially opposite to its rotation, whereby the movement of said tubes and said grippers is retarded during their engagement with the sheet.

8. In an feed-roll, suction-tubes in said roll, grippers on saidroll, an eccentrically-mounted s aft on which said roll is rotated, a second feedroll geared to said first-named feed-roll and means connected with said second rollfor rocking said eccentric mounting without displacing the teeth on said-gear.

automatic sheet-feed, a hollovr IOO IIS

9. In aprinting-press, a platen, a bed, a

sheet-carrier apron, a s rocket-chain for ac tuating said apron, a lin in said chain differentiated from a plurality of the remaining links and. a gear-Wheel engagingfwithv said chain and havlng a dierentiated tooth adapted to engage with said dierentiated link.

10. In a printing-press, a platen, a bed, a Sheet-carrier apron, as rocket-chain for actuating said apron, a ink in said chain oi largersize than a plurality of the remainin links and a gear-Wheel en aging with sai Vchain and having a tooth o larger size than the remaining teeth for engaging with said larger link..

` 11. In a printing-press, a platen, a bed, a sheet-carrier apron, a sprocket-chain for aetuating 'saiti apron and having links-at oppo- WILLIAM FULLARD.

Witnesses:

WILLIAM E. DOWN, ANNA BALAGUER,

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