US933322A - Printing-press. - Google Patents

Description

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E. N. MILLS & G. W. SMITH. PRINTING PRESS. APPLIUATION FILED JULY 2s. 190s.

Patented Sept. 7, 1909. 6 sums-SHELL 2.

and h PRINTING PRESS. APPLICATION FILED JULYza. 1905.

L. N. MILLS L G. W. SMITH.

mi L f can? w w E. N. MILLS & G. W. SMITH.

PRINTING PRESS.

APPLICATION FILED JULY 28, 1905.

` Patented Sept. 7, 1909.

LSHBET's-SHEM 3.

E. N. MILLS & G. W..SMITH.

' PRINTING PRESS. APPLICATION FILED JULY 2a. 1905;

933,322, l Patented Spt.'7,y1909.

5 SHBBTSLBHBET '4.

E. N. MlLLS 6: G. W. SMITH.

PRINTING PRESS. APPLIUATION Hmm JULY 28. 1905.

Patented Sept. 7, 1909.

5 SHEETS-SHEET *UNTTED sTATEs PATENT cerros...

EDWARD NEWTON MILLS-AND GEORGE W. SMITH, OF SAN FRANCISCO, CALIFORNIA, ASSIGNORS, BY MESNE ASSIGNMENTS, TO YTit-IIE HOAG RAPID PRESS COMPANY, OF SAN FRANCISCO, CALIFORNIA, A OORPORA'ION.

PRINTING-PRESS;

Specification of Ietters Patent.

Patented Sept. 7, 1909i Application fue@ July es, 1905. serial No. 271,713.

To allfwhom 'Lt may concern:

Be it known that we, 'EDWARD NEWTON Mintsl and Gronau `W. SMITH, citizens of the nited States, residing at San Francisco, in fthe county of San Francisco and State of California, have invented certain newand useful Improvement-s in Print-ing- Presses, Aof which the following is a specififcation'. This invention relates to in'iprovements in printing presses. A l

The object of the invention is to provide an improved feeder for the paper enabling a much larger pile offpaper to be placed in l5 the feed box, While at the same tintjeI per mitting the lowest sheet to be taken from said feed box; in which the motion of the feed box can be adjusted to correspond with different Widths of paper; which will contain improved means for taking the paper frcn the cylinder; also imprved means for 'raising thefplaten; and'in which' saidlatter means. will be rendered in-operative when the sheet of paper is not taken.A

ln the accompanying. drawings,l Figure 1 is a side elevation of the printing press, certain parts being broken away; Fig. Q'is a similar view at the opposite side; Fig. 3 is a broken plan view; Fig. 4 is an end view 30' of the machine; Fig. '5 is a broken plan View of the disk in one ofits positions; Fig'. 6 1s a similar view in another position; Flg. 7 is a detail perspective view ofthe feed box. Referrin' to the drawing, 1 represents a suitable frame, having side pieces, 2' and' grooves in said side pieces', `in which the bed? 4 reciprocates. v

represents the driving shaft which recei `ves,its motion from a driving wheel 6, said' shaft having a bevel pinion 7 meshing with a bevel gear 8 on a` vertical shaft 9 carrying at its upper end a disk 10. Upon the upper surface of said`disk is secured a wrist pin.11, which is-connect'ed by a linki I2 pivotall'y connected, as shown at 13, with .an arm 14 extending from the front end of ,the beth-:that 'is at the end at which the paper is fed". By'therot-ary mot-'ron of said disk a reciprocating'- i'notion is imparted'to 'an the bed 'Thewrist pin 11i's lsecured to..

' the disk adjustably, by means of a radialgl'ot 15, injgs'ai'd disl'x,v whereby'` length `of the stroke can be .increased or diminished as required.

As will be presently explained ther cylin'- 515 der 16 is given a reciprocating motion from the reciprocating motion of the bed, but in the opposite direction thereto,- so that when the bed reaches its farthest point at the rear end of the mach-ine, the' cylinder has also 60 reached its farthest` point at the front end of the machine ready to take the paper.

An important feature ofA this invention is the arrangement of the disk relatively to the machine. As shown in Figs. 3"- an-d 4, said 65 disk is set to one side of the center, the object being to cause the cylinder to make a pause at the end of its movement to the front end of the machine Where it tak'es the paper but to make a qu-ircl( return from the other end of the machine after delivering the paper. By providing for this pause, the feed ofthe paper is rendered more certain, and the machine can be run at a higher' speed with sufficient certainty of taking the paper. One important part of the construction for producing this pause is, that the Wrist pin is attached to the disk near its edgeso as' to be farthest from the feed endof the machine at the time when, thecylinder has reached vthe feed endfof the machine, that is,

into the position shown in Figfffi.. On7 the other hand, when the cylinder his reached the delivery end, where a quick return is desirable, the Wrist pin has passed intol the position nearest the feed end of the. machine, as shovvn at Fig. 5. The advantage of this 'construction is that, inthev firstcase, the motion of the bed at'that time` is derived from the difference of the two longitudimill motions of the .wrist pin, the onev due to its swinging about its pivotal connection 13 with the bed as' a center, and the' other due to its Swingin about the centerv ofthe disk as a center. or a given smalla-ngular moa' 95.

tion, there will be a certainl longitudinal movement of the Wrist pin relative to the 'point '13, lessthan the former' movement,

and it is the difference ofrthesetwo move ments that produces the motion of the bed.- relatively to the center of the disk, when the arts' are in the position shown in' Fig; 6,

ut their when in the position shown in 5i In the lformer position, this motion -the latter comparatively large.

of the bed relatively to the disk is small; in

By adjusting the relative dimensions of the distance of the ,wrist pin from the center of the disk and its distance from its connection 1.3 with the bed, so as to make them more or less equal, the pauses may be made greater or less, as desired. By making these distances very nearlyv e,ual the pause may be made great at the end of the movement of the cylinder at the feed end of the machine. 'Ve have herein shown this adjustment as being accomplished by increasing the distance of the Wrist pin from the center ofthe disk, thus making the two distances more nearly equal to each other, but itis obvious that it may be accomplished by adjusting the connection of the link 12 with the bed. A. still furtherv feature of the construction, which causes this pausev at the delivery end of the machine is that the disk 10 vis set to one' side of the' center of the machine, namely, to the side from'which the wrist pin is traveling at the time when the cylinder is at itsfeed end. In conse uence, the line between the.

centers of the isk. and the point 13 of attachment of the link to the bed is not parallel with the longitudinal direction of t-he machine, but makes a slight angle therewith, and, it being when the link andthe radius to the wrist pin are `in line with one another that the lon 'tudinal movementl of the wrist pin relative yto the disk and bed becomes zero and changes to; an oppositedirection, it is at this point that the motion of the bed ceases', but, from' that point'on, the longitudinal motion of the wrist pin due to its rotation about the point 13 and about the center of the disk, respectively are in opposite directions and thus counter-balance each other.' The longitudinal motion ofthe wrist pin due to its rotation about the center of the disk is then toward the delivery end of the machine but is reversed at an earlier point than is the motion of the wrist indue to itsrotationabout the oint 13 an when said reversal takes place t esemotions coun-- terbalance each other, thus producing a longer pause inthe cylinder at its feed end, Said bed carries on each side a rack 17 with which mesh gear wheels 18 secured upon the ends of the cylinderl. Said cylinder has a' shaft 19, thev ends of which are `mounted in -boxes 20 which travellin guides' 21 formed upon the frame 1.` On the ends of said shaft 4 19,0utside said boxes, are mounted smaller gear wheels 22, which mesh `with stationar racks` 23, mounted upon the frame, the effect of this' construction being' that vwhen the bed is moved longitudinally in one direction the'cylinder rotates and also moves bodily in the opposite` direction. f

Attached to thebed andfmovin'gtherewith 58A, said racks engaging se wheel 27, rotated by means of a dog 28, carried upon a swinging frame29, upon the shaft of the inking roller, said frame 29, in the movement of the bed, being adapted to `engage with some stationary` part of the frame, thereby causing the frame to tilt and the dog to drop by gravity into engagement Awith the ratchet wheel, imparting rotation to the inking roller so as to ink tle surface of thesame.

36 are distributing rollers which are carried by frames 37 attached to the boxes 20 of the cylinder.

40 represents the -angle -rollers which are `mounted upon the frame, such as are in common use, and having rotary and also longitudinal movement therein.

The'paper feed box Fig. 41 consists of a back 42 adjustably attached by means of a bracket 43 and a set screw 44 to a web 45, forming the bottom of the box, which has a number of undercut` grooves 46 to receive guides 47 beneath whichthe web slides. Said back has downward lextensions of {ingers 143 which entend between said guides and prevent the paper working underneath the back. To said back are also adjustably atta'ched'iby means ofslots' 48 in they back and set screws 49, side pieces 50 which can` be moved to and from each other to correspond with the width of the paper being fed. The guides v4T are all attached at their front end to a stationary cross piece 51, the front edge of which is arranged behind, but as close as possible to, the line of suction holes 81 in the cylinder 16- by which, as hereinafter described, the paper is caused to adhere to' the cylinder.` The pile of paper is placed on the guides, being impelled thereto by the' motion of s aid back. To impart said motion,

theweb 45 has secured thereto, by screws 53,A

side pieces 54, which kare adjustably secured byslots-55 and screws 56 to arms 57 of racks ent gears 59 on upon these guides, the back of the pile restlevers 60 pivoted onthe rame of the machine, as shown at 61 and having short depending arms 62 pivotally attached to links 63, the other ends of which are suspended vfrom hangers 64 swinging from the. frame, by means of studs passing through holes `66 in the lower 'ends of said hangers and also .passing into holes 145 in the sides of the links.' Said links are formed on their under s ides, with notches 67, which are adapted to be' enga ed by lugs; 68 on the outwardly 'extending eet'69 of Ahangers 7 0 attached to the bed of the machine, 4and in the motion of the bed toward the feed end of the machine, said lugs, engaging said notches, carry with the bed said linksin the direction of isan ink fountain 25, in which revolves an "the feed end ofthe machine, thereby impart-- inking roller which is actuated' by av ratchet ing a rocking motion to said segment gears swinrin from said han ers 64 which'` describes an arc Iof a circle, and thus cause ,the notches to be raised from olf the lugs and y to be no longer engaged thereby, so that the forward movement ceases, andthe bed moves on without carrying with it the links, and consequent-ly the forward movement of the feed box stops.

In order -to adjust the extent of forward movement for paper of dilierent sizes, the holes 1&5' in the sides of the linksare provided in circular series, Vand by selecting holes which are more or'less distant from the upper .edgesl ofthe links the amount of feedof the paper will be lessor more as may bey desired, this arising'from ithe fact that if the links be connected with the'hangl ers whenthestuds are inserted in the holes near the upper edges, then the hangers being already more2 oblique', Vtheir upward motion will more-rapid, than from the position shown in F ig. 2 and consequently the notches ;will be sooner released from the lugs.

' vAs the pile vof paper fed forward the front edge of the lowest isheet of the pile is drawn toward the cylinder by suction. This cylinder1 is of the same construction as that shown in the patent to E. N. Mills No. 785821 issuedMarch 28th, 1905, and therefore need` not be more particularly described. Exhaust is suplied to said cylinderby means of a pump 72 operated by an eccentric 7 3, on the main shaft, a piston rod 74, a pipe 75 y leading from saidpump to an exhaust reser- Voir 76, the latter communicating with the cylinder by means of a pipe 78 which may be either Wholly flexible, o r partly lexible and 'have a flexible joint, as shown at 79. In like manner as insaid patent, there is provided a suitable valve 80 for opening the exhaust when the cylinderv arrives at the position to take the paper, this position beingl that shown in Fig. l3, and, when the cylinder begins. its forward movement carrymg with it the paper, the front'nedge of which has been caused to adhere to the cylinder by suction hrough the holes 81, a cam 82 being provided to operate'the. valve and cut off the exhaust as soonas the gripper-s'grip the edge of the paper vand lhold itto the cylinder. None of the mechanism relating -to thel construction of the cylinder or the means of holding the' paper thereto is novel in this application, but we referto the above patent granted to E. N. Mills for the construction used herein.

Along thefront of the box 4 -1 is provided a reciprocating jogging board 82 supported .i by pair of rods'88 and hinged .thereto at 82X at its upper edge. The jogging board is normally held against the paper pile vby springs 83 which are'supported in position by the studs 84.

149 indicates. a st'op, comprising a screw,

mounted in a bracket 14% fixed to some stationary part ofthe frame. They stop envgages with a stud or projection on the end of 'the' jogging board and operates` to throw the latter -open along lower edge and release/a sheet of v.paper from vthe paper pile at the-instantthe suction holes of the cylinder arrive at .this-point. v

- The lower edge is cut out as shown at 85 to pass over wedges 86, located in front of the jogging board 82 and upon va stationary part of thel machine, said wedges serving to raise the paper, as the lowest sheet is being taken olf, to relieve said lower sheet, and to permit the rear edge thereof to be pulled easily from underneath the pile, vwhen ,the cylinder has made almost its complete revolution. The lower edge of the front side is vcut out to pass between the wedges in order to engage and aline the front edges of the pile, and, particularly at the bottom of the pile. Y

It will be funderstood that in all eases the .Speed ofbox is substantially equal to that o the cylinder, so that the pile of sheets moves with substantially the same velocity as that of the lowest sheet, so that no force is required to move said lowest sheet as it is being detached from the remaining she-ets of the pile, and inasmuch as the weight of the pile is then taken by the wedges 86, there is no weighton the lowest sheet, and therefore itis possible'to put a'large pile of paper in the feed box.

When the bed 'returns after a paper sheet vhas been printed and `delivered to the delivimportant that this movement should be started without shock or jar to the feed box. For this purpose there is secured on each side of the bed a depending hanger 70, carrying a4 cylinder 107 closed at one end except for a small hole through which passes a piston rod. 108, the other end of which is loosely attached tothe link 08, and which has secured thereto a flange 109 which acts as apiston andagainst which a coiled spring 110 abuts. As the bed returns this piston enters the cylinder 107 and compresses the air therein, which forms a cushion. Moreover themovement ofthe piston is resisted by the compressing of 'the' spring 110, a loose washer being mounted on the rod 108 in front of the said.` springywhich engages with the end of the cylinder. ln this way the motion of the bed is connnunicated tol the link gradually and resiliently through the spring of the compressed air and of the metallic spring. Therefore by the time that the lug 68 carried by the hanger 70 secured to the bed has reached the notch 67 in the lower edge of the link 63, said link has attained aspeed almostapproaching that of the bed. The lug has been moving against the lower edge of the link, so that, as soon A as said lug reaches said notch, the link is forced down by the hanger 64, and the notch drops on to the lug.

By reason of the spring of the compressed air and the metallic spring, the link has attained substantially the same velocity as the bed when the engagement of the notch and bed takes place, so that thereis no sudden increase of. velocity and `no jar to the feed box casing'by any such sudden increase. It has already been explained how upon the return movement the notch is lifted from oft' the lug by the circular movement of the j hangers. At the same time in order to absolutely insure that the carriage should reach the same place at the saine time, there is provided on the link a stud 113 which engages an angle piece 114 upon the bracket, so that the. bed and the link move absolutely together.

The arrangement of thefeed box is such that very narrow'paper can be printed, because the front edge of the stationary bottom of the feed box is arranged very near to the front wall of the feed box, so that a very small portion ofv the paper is unsupported at any time, and there is no danger of the paper sagging in a wide unsupported place as is generally the case with other machines.

In order to adjust the machine for frge or small paper,'as 'may be necessary, the

speed and extent of travel of the cylinder.

and aback movable relative to andv over said reciprocating'the said bottom and means for back.

2. In a printing press, the combination with a suction cylinder having to and fro motions, of a feed box havinga stationary bottom adapted to support a pile o f paper, anda back movable relative to and ov'er said bottom, means for reciprocating the said back, and a jogging board movable with the back.

nient, and means for reciprocating 3. In a printing press, the combination with a suction cylinder having to and fro motions, of a feed box having a stationary bottom comprising a seiies of bars separated from each other, adapted-to support a pile 'of paper, and a back movable relative to and over said bottom, and means for reciprocate ing the said back.

4. In a printing press, thecombination with a suction cylinder having to and fro motions, of a feed box having a stationary bottom comprising a series of separated bars adapted to support a pile of paper, a web movable between and guided by the said bars, and a back secured to the web, and means for reciprocating the said back.

5. In a printing press, a paper feed box comprising 'a back, a stationary cross piece over which the sheets are successively drawn, and means for. supporting the pile of paper, extending from the said cross piece to the back, means for moving the pile of sheets forward and backward, and feeding mechanisin for taking the. sheets from the pile successively from the bottom thereof.

-6. In a printing press, a .paper feed ,box comprising a back, a web secured to s aid back having a plurality of undercut grooves,

.guides in said grooves beneath which the web slides, said back having downward extensions or lingers extending between said.

guides and means for reciprocating the back and web, substantially as described.

7. `In a printing press, a paper feed box comprising a back, a web securedto said back having a plurality of undercut grooves, and guides in said grooves beneath which the web slides, a stationary cross piece to which said guides arelall attached at their front ends and-means for reciprocating the back and web, substantially as described.

8. In combination with a cylinder having a row of suction holes, and means for reciprocating the cylinder, a pa er feed box and guiding mechanism -there or comprising a stationary cross piece the front end of which is arrangedbehind and ii'i close proximity'to` the row of suction holes in the cylinder when the latter has reached the end of its movethe paper feed box, substantially as set forth.

9. In a printing press, the 'combination of .a paper feed box, a guide therefor, a bed, a

cylinder operated by said bed, and means for moving the feed box with the cylinder, com prising a rack connected with the feed box and asegment gear engaging said rack, and' an' operative connection between said segment gear `and bed whereby the motion of the bed rocks saidv gear, substantially as described.

10. In a rinti'ng press, the combination of a pa eij-fiied box, a guide therefor, a bed,

a cyliniA er operated by said bed, and meansf,"

for moving the feed boxwith the cylinder,

'stantially as described.

Acomprising a rackconne'cted with the feed box and a segment gear, having a depending arin, a link attached thereto, a hanger from which the other end of the link issuspended, said link being formedI on its under side with a notch, and a device attached to the bed and adapted to engage said notch inthe motion of the bed to move the link with the bed and rock the segment gear, substantially as described. v.

1'1. In a printing press, the combination of 'a paper feed box, a guide therefor, a bed, a cylinder operated by Vsaid bed, andi'neans for moving the feed box with the cylinder, oomprising av rack connected with the feed 'box and a segment gear having a depending arm,

a link pivotally attachedthereto, a hanger from which the other end of the link swings,`

said link and the bed having eoperating parts adapted to engage each other in the motion of the bed to cause the link to move with the bed to rock the segment gear, sub- 12. In a printing press, the combination of inder operate y said bed, and ineansfor 'moving thefeed box with the' cylinder, comprising4 a rack conneetedwith the feed box and a segment gear having a depending arm, a -link pivotally attached thereto, a hanger from which the other end of the link swings,A said link and the bed parts adapted to engage each other in the motion of the 'bed to cause the link to move with thebed to rock the t gear, smid moving the feed box `With Vand a segment gear having a depending arm,

aper feed boX-the guide therefor, a bed, a4

having coperating coperating 4parts engaged from each other as the rear end of the link is raised by the oscillation of thel` hanger, substantially as described. 4 In a printing press, the combination of a paper feed box, a guide therefor, a bed a cylinder operated by said the cylnder, eom v p rising a rack connected with the feed box a linkfp'ivotally Aattached thereto, a hanger from which the other end of the link swings,f said ,link and the bed parts adapted to engage .each other in the motion ofthe bed to cause the move link being 'provided with a circular `series of holes by .means of one of which it is connected with the hanger to adjust the time ofv release of said coperating parts, substantially as described.

f 14. In a printing press, a pa er feed box having the front side swinging gom the top, and springs pressing forward the lower edge, said lower edge being cutout, and stationary wedges in said cut lout portions, substantially as described. f

l vIn witness whereof we have hereunto set our hands inthe presence-of two subscribing witnesses.

EDWARD NEWTON MILLS. GEORGE W. SMITH. Wtnees:

Fmcxs M. WRIGHT,- Enrm Woowann.

being arranged to disbed, and means or having coperating4 5o with the -bed to rock the segment gear, that

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