US1054987A - Sheet-feeding device for printing-presses. - Google Patents

Description

I D. F. REID & H. G. JOHNSON.

SHEET FEEDING DEVICE POR'PRINTING PRESSBS.

Wbwsses: @Mx

APPLIOATION FILED IEB.15, 1912.

Patentgd Mar. 4, 191 3. s

Mums-SHEET 1.

liwenlmzs; DanieZE Jfizny GJOhILSQn.

UN TED STATES PATENT orrion.

DANIEL F. REID, DGBCHES'LER, AND HARRY I3. JOHNSON, OF CAMBRIDGE,

' MASSACHUSETTS SHEET-FEEDING DEVICE FOR PRINTING-PRESSES- Specification of Letters Patent.

Patented Mar. 4,1913.

Application filed Februeij 15, 3912. Serial No. 677,855.

certain new and useful Improvements in Sheet-Feeding Devices for Printing-Presses, of which the following is a specification.

In the art or fine printin it is always customary to insert between t 1e printed sheets other sheets known as slip sheets to prevent the ink being ofiset.

Heretofore, when these slip sheets are used, the are piled on a platform at one side of t e" rose and it has been necessary for the fee er to stand at the end of the printin press and the printed sheets are delivered from the platen upon the delivery reel: a slip sheet is seized in one hand, transferred to the oibei, and placed upon the printed sheet before another printed sheet isdelivered thereon, Owing to the position that the feeder has been obliged to take at the end of the machine while the sheets are set the side of the press, he has been obliged to reach. over operating parts or the machine, which their movement interfere materially with his operations, as he must continuously be on guard to prevent injury to himself and also injury to the operating parts of the delivery meohanism. Moreover, when the feeding of the slip sheets is done in this manner, the feeder ll" kept continuously at work and under considerable strain botharnis being always in operation.

Obviously the feeding of the slip sheets from the side of the printing pressis very objectionable for the above stated reasons, and to overcome these objections is the principal purpose of the present invention.

This invention provides for moving the platform adapted to support the slip sheets, which platform will move with the delivery .mechelnism into a position Where an opera- :or at the end of the printing press may seize the upper slip sheet and hold it while the movable rack supporting the slip sheets returns to its normal position, thus permitting the sheet seized by the operator to be dropped upon-the upper face of the last printed sheet preparatory to the delivery ihcroon or another printed sheet. This slip. sheets between the printed sheets and may be quickly and acouratel performed by even the cheapest labor, while, when th slip sheets are inserted by a feeder from the side of the press an experienced and thoroughly skilled helper is necessary.

The invention consists in certain novel features of construction and arrangement of parts which will be readily understood byreference to the drawings and to the claims hereinafter given.

Of the drawings: Figure 1 represents a side elevation of so much of a printing press as is nece ssary to show the connection of the present invention applied thereto. Fig.

represents a plan of a portion of the same. F ig; 3 represents an elevation of the movable rack supporting the slip sheets and the truck supporting the some, and Fig. 4 represents enlarged detail in plan of one of the supports for the movable rack supporting track.

Similar chm-esters designate like parts throughout the several figures of the drawinos.

in the drawings, represents a portion of the side frame of a printing press-provided with a bearing 11 for a cylindrical platen 12 from which printed sheets are delivered onto endless bands 13 in the usual manner, and are moved lengthwise thereon onto the fingers 14 supported by a travelflig carriage 15 provided with trucks 16 movable lengthwise of the inclined rails 17 At 18 a. coupler 19 is pivoted to the traveling carriage. iii, the opposite end of said coupler being pi otally connected at 20 lo an oscillating arm 21 secured to a shaft 22 which has also secured at one end thereof an arm 23 the outer-end of which is prov ded with a stud 2% to which is pivotally' connected a link 25 the opposite end of which is connected to some movable part of the printing press which will cause in its movement a continuous osc llation of the shaft 22, and thereby move the carriage 15 from its normal position as shown in full lines in Fig. l of the drawings, to a position shown in dotted lines in said figure at 26, and subsequently return the carriage to its normalposition. The two side frames of the carriage 15 are connected together by mean of a rod '27. In the ordinary construction of a print-- ing press a shaft 28 extends transversely greatly sin'ipliiies the work of inserting the l thereoi', and a smaller shaft 29 extends transversely of the press and is supported in hearings in the upwardly extending bracketv of the side frames 10. Between the side frames 10 of the printing press-at the delivery end of the press is a rack 31 support ed. by members 32 and having an end stop 33. All of the parts heretofore described are common to most cylinder presses and particularly to the Miehle printing press, a porw tion of whiclris shown in the drawings as one type of printing press to which the present invention may he; applied. An inclined rail is provided with downwardly extending forked arm 35 straddling the shaft 28 between its hearings, the opposite end of which is pivotally secured to a member 36 in turn adjustably secured by means of the bolt 3"? extending through a slot 38 to an arm 3-9 mounted upon the shaft 29.

in the operation of printing the platen cylinder 2 is raised and lowered slightly. and during this movement the rail 34 permitted to accommodate itself to this inovement by turningmoout its pivotal connection with the member Supporfed'at one end by trucks to movable lengthwise of the rails 34- is a movable platform ll adapted to support a pile of slip sheets 42, the opposite end oi said platform being pro- "led ill a bracket to the lower end oi member 4-4 stradnich secured a to dling the rod formi. V a part of the-mov-- able rriafgte 2G. The slip sheet supporting raclr provided with a registering men up; a plurality. of pins adapted on in the holes 4:7 in saidrack all. ides a: ready means for adjusting r-gie ering member longitudinally of the rack all, said registering device preventgq; .ing the slip sheets from moving endwise at one ,end of the movement of said rack While at the other end of said movement the sheets are prevented from becoming displaced by the inclination of the rack as in- 45, dicated in dotted lines in Fig. 1 of the drawings. It is-obvious that from this construction the sheet delivery mechanism whicl'i conveys the printed sheets from the platen to the delivery rack 31 operates in so unison with the movable slip sheet support 'ing; rack While the printed sheet is being arried hy the fingers ll into position to he dropped upon the rack ill a pile of slip sheets on the rack 41 is simultaneously 5.5 hemg moved into the position shown in dotted lines in Fig. l of the drawings. This provides a means whereby a boy or other helper standing at the end of the printing press may simply place his fingers upon the upper slip sheet, and the rack carrying the same makes a return movement toward the platen. 12 the pile of slip Sheets isremoved from under the upper one, the permitting the helper to place it upon last printed. sheet i'lelive ed to the reel.

By the use of such a device as is herein described thepress may be run at a greater speed inasmuch as by the old method of feeding the slip sheets the speed of the press is determined by the skill of the slip sheet feeder, and as thelatler has many movements to npalre'in order to place a slip sheet in position upon the printed sheet the speed of the press is necessarily limited to the rapidity with which he can feed the sheets. The Work 01 the helper with the present construction operating at the end ol the press so simple that the press may be speeded up to" its limit and the slip sheet-s interposed between the printed sheets as fast as they can be delivered to the rack 31. Ohviousl y this is a great advantage.

- It is-believed that the operation and many I advantages of the "invention will be thoroughly understood from the foregoing.

Having thus described our invention, We claimr 1. In a machine of me class described, the

vcombination with a delivery rack to receivethe printed sheets and mechanism for conveying; said sheets thereto from the platen; supplemental rails provided with forked members straddling a transverse rodoic' the press and pivotally connected at the other end to another transverse rod; and a supplemental slip sheet supporting rack con nected to said, delivery mechanism and adapted to he reciprocateol thereby over said rolls into a position alcove the delivery rank.

2. ln a machine of theclass descrihed,-the combination with a delivery rack to receive the-printed sheets and mechanism for-conveying said sheetstheretc from the platen; supplemental rails inclined downwardly toward the delivery end of the omachine one 'end of each of which ispivotally connected to a transverse i'odof the press While the other end is provided With a downward forked extension straddling anothertransverse rod; and a snpplementaisli sheet supporting rack connected to said elivery mechanism and adapted to be reciprocated thereby over said rails into a position above the delivery raclr.

3. In a machine of the class described, the combination with a delivery rack to receive the printedsheets and mechanism for conveying said sheets thereto from the platen consisting in part of a transverse rod; rails fixed from end movement; a su plemental. slip sheet supporting rack provir ed at one end with trucks m'ovable'on said fixed rails an at the other with downward forked extensions straddling said rod and insuring a simultaneous movement of said. conveying i'neehanism and said supplemental rack.

4-. lo a u'iachine oi the class described, the comhin oi meclmni m I tl priu sh ets "on a dell transverse member forming a part of said the press; and a supplemental slip sheet sup porting 'nck having grooved Wheels at one end on said rails and arms straddling aconveying mechanism nnwahle in unison Wli'll said sheet conveying mechanism and 1 8111170 *ai'ily positioned above said delivery nick. i

5. In a machine of the class described, the combination of mechanism for Conveying the printed sheets to a delivery rack; sepanted mils snpporied by transverse rods'on the press in inclined position; and a suppleinenl'al slip sheet supporting rack-movable in unison with said sheet conveyingl mechanism and temporarily positioned above said delivery rack in an inclined position, said rack being provided at One end \viih grooved wheels adapted to travel over said rails and at the other end with down- 20 ward forked extensions straddling a rod fanning a part of the printed sheet delivery mechanism.

Signed by us at 4 Post Oflice Sq.. Boston, Mass, this 13th day of February, 1912-.

DANIEL F. REID. HARRY C. JOHNSON. 'Wiii'iesses:

\VALTER E. LOMBARD, NATHAN C. LOMBARD.

Images