US1434001A - Safety track for smut-sheeting machines - Google Patents

Description

J. E. GILBERT AND G. W. HARRIS. SAFETY TRACK FOR SMUT SHEETING MACHINES.

Patented Oct. 31

APPLICATION FILED MAR. 31, I920.

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J. E. GILBERT AND G. W. HARRIS.

SAFETY TRACK FOR SMUT SHEETING MACHINES. APPLICATION FILED MAR. 31, I920.

1,434,001 Patented Oct. 31, 1922.

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SAFETY TRACK FOR SMUT SHEETING MACHINES. APPLICATION FILED MAR. 3|, 1920.

1,434,001. v Patented 0ct.31,1922.

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1. E. GILBERT AND e. w. HARRIS. SAFETY TRACK FOR SM-UT SHEETING MACHINES.

APPLICATION FILED MAR. 3|, 1920. V v Patented 0617.31, 1922.

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Patented @ct. El, 1922.

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JAMES E. GILBERT AND GLENN \V. HARRIS, OF CHICAGO, ILLINOIS, ASSIGNOBS 1'0 GILBERT SLIP-SHEETING MACHINE COMPANY, OF CHICAGG, ILLINOIS, A COR- PORATION OF ILLINOIS.

SAFETY TRACK FOR SIlIUT-SHEETING MACHINES.

Application filed March 31, 1920. Serial No. 370,261.

To all whom it may c0ncern Be it known that we, JAMES E. GILBERT and GLENN W'. Harris, citizens of the United States, residing at Chicago. county of Cook, and State oflllinois. have invented a certain new and useful Improvement in Safety Tracks for Smut-Sheeting Machines, of which the following is a specification.

Patent Number 966,739 to J. E. Gilbert, issued August 9, 1910, illustrates and claims a machine for taking care of sheets of printed or lithographed matter between the time they receive theimpression of ink and the time they are sufficiently dried to prevent offsetting when placed on a pile. Broadly speaking that machine includes the use of an intermittently moving and successively folding strip of cloth between which successive sheets of printed paper are placed immediately on being printed, and in which they are carried until sutliciently dry to be automatically delivered from the machine, all as will more fully appear from the inspection of said patent.

The successive portions ofcloth between which the paper is held are divided or marked one from another by cross bars 52 which in the operation of the machine slide downward through guides or channels H and as fully set forth in said patent and when released from the bottoms of said guides they travel with the cloth back to the tops of the respective guides. It will be noticedthat in said prior patent the cross bars 52 are on opposite sides of the continuous strip of cloth, and. that no provision is madeholding the bars in any given angular position with reference to the cloth from the time they leave the bottoms of the channels l4: and l5 until they return to the tops of said channel irons for reinsertion therein. As the cloth when stretched between these channels or guides must necessarily be substantially smooth and level it is essential that these bars 52 always enter the respective guides in the same relative horizontal position. Actual practice has demonstrated that in the case of a machine ruiming at the high speed of winmercethese bars cannot be trusted to unguided and unaided automatically assume the correct positions for entry in the guides or channels 4A and 45.

The object of this invention is to provide a continuous guide or track mechanism which will control independently each of r the bars on opposite sides of the stretched cloth portions from the time that they leave the bottoms of the guides at and until they are safely reentered in proper position in the tops of said guides. g This invention consists broadly in means or carrying out the toregolng ob ects and in means for accomplishing each specific portlon of the result, that is to say, it cons1sts in detail mechanism more or less independently located at different points in the machine, which materially aids in the accomplishment of the broad general result. The invention particularly consists in such mechanism which gives thoroughly positive results, and in many features and details of construction hereafter fully set forth in the specification and claims.

Before taking up the description of the drawlngs it may be stated for the information of the reader that the machine in ques tion is commercially a large ailair occupving about sevenfeet in each direction and that the track mechanism which enters largely into the invention is only about three inches wide by one inch in height and con tains a number of parts only about three siX- teenths of an inch in thickness. The result is that it is impossible to show in thedrawings in a general view all the parts constituting this invention without greatly distorting the sizes of the novel parts or their being practically invisible in the drawing. Because of this fact the single general view of Figure 1 is more or less fragmentary in character but the description and the detail drawings will make the matter entirely clear.

Referring to the drawings:

Figure 1 is a side view of a modern machine with the track mechanism referred to showing the application of this invention thereto in so far as is practical under the conditions just named.

Figure is a plan. view of the top track mechanism taken over the right hand half of Figure l.

Figure 3 is a plan view showing the sin gle track appearing in the lower quarter of Figure 2, certain parts being shown in section and more in detail.

Figure 4: is a side view of the mechanism of Figure 3.

Figure 5 is a detail end view on the line 55 of Figure 3.

Figure 6 is a detail side view partially in section of the lower right hand quarter of the mechanism of this invention in Figure 1.

Figure 7 is of Figure 6.

Figure 8 is a S-S of Figure 6.

Figure 9 is a plan v ew of the lower track mechanism taken on the irregular line 99 Figure '6.

l igure 10 is detail side view of that portion of the mechanism of this invention which is located in the lower-left hand cornor of Figure 1.

F igure 11 is a detail sectional VlBW on the line 1ll1 of Figure 10.

F i ure 12 is a detail view of a spring portion of track cover talzen at approximately the center of Figure 10.

Figure 13 is a changed position view of the parts appearing in Figure 6.

'gure 14 is a plan view of the essential. portions of Figure 13.

The general machine shown has a pair of oppositely disposed side frames 20 connected by suitable cross members of no importance herein and therefore not shown in an end view on the line 77 detail view on the line detail. Mounted in this general frame are front guides which for uniformity with the the prior Gilbert patent are designated 44 and rear guides correspondingly designated 45 performing in general terms the function of the correspondingly designated members in said prior patent. I i

As in said prior patent a continuous strip of cloth $22 is provided divided by, successive cross bars 24- and 26, adapted respectively to travel down i dos 44 and 45 into successive sections re er to in the prior patents as print sheet supports and smut sheets,

This continuous trip of cloth carrying these bars 24 and is propelled and ulitima nly stretched to the positions of Figure 10 by power roller 28 supported by truclts carried on wheels traveling in tracks 32 and driven by a lever mechanism 84. 3G in turn driven by the cranl; or stud on disk 39 and rotated by power shaft A i fully set forth i said Gilbert pa ent thi roller 28 is driven to the left as viewed i; Figure 1 far enough so that at each cycle of operation one bar 24 is deposited in guides 44, after which the roller returns to the right a sufficient distance to the right f guides 45 so that the next adjacent bar 53 can be and deposited in the guides 45, whereupon the roller 28 again starts to the left carrying over another section of cloth and deposits a new bar As in said prior patent the cloth engages at the bottom of the machine another roller 42 which per forms all the functions of the roller of said Gilbert patent as set forth therein, it being in the particular case here illustrated moved to the left of Figures 1, 6, 9, 13 and 14 by a dash pot-mechanism, (not shown) attached to straps or belts 46 which dash pot mechanism is the subject matter of a copending application heretofore filed by us. The modern commercial machine described up to this point operates to move the cloth int-o, through and out of the guides 44 and 45 in the same cycle of operations set forth diagrammatically in Figures 21 to 28 inclusive of said prior Gilbert patent.

As heretofore, indicated, the principal on. ject of this invention is to, in the continuous movement of' the cloth, guide and control each cross bar 24 from the time it leaves the bottom of the guides 44, while it travels entirely around the pile of folded-in cloth 22 until it is ready to re-enter the tops of said guides 44 and to simultaneously control the cross bars 26 as they successively leave the bottoms of the guides 45 and travel to the point where they are above the upper entrances of said guides 45 and are ready to be moved by suitable mechanism one form of which will be described, into said guides.

Broadly speaking, this result is accomplished by providing a normally COHtillllous track or channel designated as an entirety 50, leading from the lower exits of guides 44 to a point immediately adj acent to their upper entrances, this with and without switching mechanism locatedadjacent to the lower exits of guides 45 through .i .ich bars 26 may be inserted in the tracks and carried around to the upper entrances of guides 45 and the provision there of means for moving or switching out these bars 26 from the tracks so that they enter the upper entrances of said guides 45. Each trac 50, (there is one on each side of the machine) is, in order to allow for the normal travel of the roller 45?, made with an inclined section 50, shown in detail in Fig-v ure 10, immediately adjacent to the lower ends of the adjacent guides This por- Parallel to the bottom member and is so spaced therefrom as to retain the cross bar 24 in the horizontal position in which it enters the tracl': when it was released from the pile of cross bars 24 shown in Figure 10 by the releasing latch mechanism 56. This latch mechanism 56, without novelty in this application, and therefore not described in detail, merely performs the same function as the correspondingly releasing mechanism that figure.

of said Gilbert prior patent. The track cover 5 5ladjacent to the bottom of guide 44lmadefiexible by the use oi. a spring 58 attached to the bottom of the guide 44 by any suitable means, tor instance as shown the left asfviewed in i igure 10 thereby performing its proper function-in preventing bagging of the cloth asthe bar 2% re leased which bagging of the cloth is well un derstood in, the art. to be very detrimental to the proper delivery of the printed sheets of paper i. e. to the proper operation of the machine. From the wheel 52 heretofore referred to the track 50 leads over the roller 60 correspond ng in function to rollers 58 of "said prlorGllbert patent, the cover member 54 below new becomingbottom member 5 lfljand then leads along the top of the machine to a point62 slightly to the right of the side walls of the'guides i l, at which point the confined cross bars. 2e are released and areturned over by and around the roller 28 in the act of being deposited by said roller in position to descend the guides 1 i.

' The member 54:, heretoforereierred to, as the cover of'section 50 of track 50 terminatesat a point 64 a little to the left of the lower end of the adjacent guide 45. Horizontally slidable in substantial alinement with this end 44 is the lower side 66 of a lJ-shaped bar whose opposite sidearm is lettered 68 the two members being connected by the vertical member 70 forming the bottom of the U referred to. This lower member 66 iszreeiprocatably mounted on the under side of a stationary plate 72 which forms the upper uidingportion of section 50? of track 50. I ising -from member 72 isfastationary post M to which is connected a spring 76 connected at its opposite end to a post 78 carried on member 66 [and extending through an elongated slot 80 in member 72. The result of this construction is that the spring76 tends to hold the U-shaped member referred to] in the position shown in Figure 6 and return it to that position when it has been moved to the position of Figure 1.3 by the roller i2 engaging it and moving it. as shown in The parts just described are so located and positioned with reference to allthe movinglpartso f the machine that when.

mechanism forming no part of thisinyenfromfthe position of Figure 3 in which it bar 24 to pass overthe track at this point tionmoves latch mechanism 82 torelease lower bar 26 from. the pile of bars in guides" 4:5 roller 42 simultaneously moves U-shaped member 66-68 to the right againstthe action of spring 76 untilthis lower bar 26 as clearlyshown in .t igurelii, descends over and around that roller through the position of Figure 13until it reaches its normal carrylng positlon of Figure 6, in track 50 during wlnch latter mentioned movement memben66-68 has closed the top or" the traclras shown in Figure 6. The result of this-operation is that the bottom bar 26 has been transferred from thebottom of r the pile in guides 45. into the position is ready to be carried continuously; in' that shownin thetrack-5O in Figure 6 where it t position around the wheels or rollers52 and upper 'Ii ZZtlDQ-ES of the guides 45. and ready to beswitohed or moved out of'the track 5 under member 72 thus rendering theupper 60 up to the position where it is over the ee -es is important in'that lower member 66 passesinside track surface smooth for passing bars 24 when they come along while upper mem-- ber 68 forms a convenlent guideand track tion of Figure 6 does not immediately move f or is not immediately moved by the pull of the cloth as just described, but-this is imi material so far as the invention of this ap-. .plieation 1S concerned. The portlon 54E of v e rack imm ia ey o 1 r ces 0 is J th t 1 ed tl ve ,ul 4"] r0 vided with set of slots and notchesshown in plan view of Figure 3, the same being provided with closing mechanism, timed to be in place as each bar 24 passes sothat for that bar the track portion is practically smooth and timed to be opened in the .operation of the machine atlthe proper mement for the next adjacent bar 26 to be carried down into the adjacent guides 45.

The device 311st referred to includes a transverse parallel sided siot 90-451 of sufficient width and depth so that the ad-' jacent end of the crossbar 26 can pass downward through it; a longitudinal slot 92 so that the gripping yaw mechanism 94,

which merely exemplifies one of many types which may be used, can pass up through this slot 92 and talre the adjacent bar 26 into the space 96 provided forthepurpose and carry the bar down intothe guide 45.

Furthermore, and very essentiah there is provided a longitudmal slot 98 in which a closure bar 100 is adapted to reciprocate closes or bars slot 90 and thus allows cross to anditowards guide 44. This slot 98 is of such a length that when the member 100 is moved to the right to the extreme end of slot 98 slot 90 is opened vertically for the downward passage of bar 26. Member 100 is supported on and reciprocatable with a plate 102 seen through slot 98 in Figure 3, reciproeatably mounted in brackets 104 for movement on the underside of member 54. This plate 102 and block 100 is reciprocated automatically in the operation of the machine by lever arm 105 and'connect-' ing rod 106 carried on a shaft 108. Rigid with arm 1 05 and forming a bell crank arm therewith is a lever arm 110 connected by a link 112 to a reciprocatable cross head 114 which actuates the gripping jaws 94 heretoforereferred to. This cross head is reciprocated'through a connecting rod 116 driven by a cam and lever mechanism 118, 120, driven by shaft 40, heretofore referred to. These parts are so timed that when the top roller'28 is in the proper position at the top of the machine where the adjacent bar 26 should enter guides 45, that bar is on the track portion 54 over member 100, whereupon that member slides to the right to open the slot 90, whereupon the jaws 94 simultaneously move up and grip thebar and carry it down into the guides 45, during which time, the motion of member 100 is reversed, thereby closing slot 90 and keeping it closed until it is time for another bar 26 to be moved into the guides 45. During the intervening time another bar 24 will have been passed along the track over member 100 to point 62 ready for entry in guides 44 and in such movement will have had a smooth passage because of the proper closing of slot 90 by member 100.

It is to be noted that the cam and lever mechanism is such that when member 100 closesv slot 90 it is held positively in that position and the slot cannot accidentally open and let a passing bar 24 either catch or actually pass down into the guides 45. The detail mechanism for opening and closing the jaws 94 is not shown in detail because any sort of mechanism for this purpose might be used and this particular mechanism is to be the subject of a companion application hereafter filed by us,

Having thus described our invention what we claim as new and desire to secure by Letters Patent, is 2- 1. In a machine of the class described, in combination with front and rear vertical guides, and a piece of cloth carrying front and rear cross bars adapted to travel down said guides, guiding tracks for a front bar, leading from the bottoms of the front guides, below, around, and over the rear guides to the upper ends of the front guides whereby a front bar on the cloth is continuously guided and positioned in passing with the cloth from thelower ends of the front guides around to their upper ends.

In a machine of the class described, in combination with front and rear vertical guides, a piece of cloth carrying front and rear cross bars adapted to travel down said guides and means for moving the cloth from a position in which said bars are in the bottoms of said guides to a position in which they reenter the tops of said guides; guiding tracks for a front bar, leading from the botguides, below, around and over the rear guides to the upper ends of the front guides whereby a front bar on the cloth is continuously guided and positioned in passing with the cloth from the lower ends of the front guides around to their upper ends, and means for guiding the rear bar from the bottoms of said rear guides into the said track whereby it is positioned while being carried around to the upper ends of said rear guides.

4. In a machine of the class described, in

combination with front and rear verticalguides, a piece of cloth carrying front and rear cross bars adapted to travel down, said guides, and means for moving the cloth from position in which said bars. are in the hottoms of said guides to a position in which they're-enter the tops of said guides, guiding,

tracks, for a front bar leading from the bottoms of the front guides below, around,and over the rear guides to the upper ends of the front guides whereby a front bar on the, cloth is continuously guided and positioned in passing with the cloth from the lower ends of the front guides aroundto their up,- per ends, and means for guiding, the rear bar from the bottoms of said rear guides, into the said track whereby it is positioned while being carried around to the upper ends of said rear guides;

5'. In a machine of the class described, in

combination with front and rear vertical guides, and a piece of cloth carryingfront and rear cross bars adapted to travel down said guides, guiding tracks for a front bar leading from the bottoms of the front guides below, around, and over, the rear guides,

to the upper ends of the front guides whereby a front-bar on the cloth is, continuously guided and positioned in passing with the entrances as described, said trachcloth from the lower ends of the front guides around to their upper ends, means for gu1dmg the rear bar from the bottoms of said rear guides into the said track whereby it which theyre-enterthe tops of said guides; guiding tracks for a front bar, leading from the bottoms of v the front guides below, aroundand over the rear guides to the upper ends of the front guides whereby a front bar on the cloth is continuously guided and positioned passing with the cloth. from the lower ends of the front guides around to their upper ends, means for guiding the.

rear bar from the bottoms of said rear guides into the said track whereby it is positioned while being carried around to the upper ends of said rear guides, and means for taking said bar from thelast mentioned po- .sition into the upper end of said rear guides. 7. In a machine of the class described,

having vertical front and rear guides, and a continuous foldable clothcarrying bars adapted toalternately' enter said front and rear guides, and means for so carrying said cloth and said bars that a bnLlGdVlDg the bottoms of the front guide is carried around to the upper entrances oli said guides and the next adjacent bar leaving said rear guide is carried around to the upper entrances of said rear guide; a. continuous track leading from points adjacent to the respective exits of said guides following approximately the path of travel of said cloth as it moves from said guide exits tosaid guide 1 l'fiU' shaped to hold the respective cross bars in predetermined positions as they travel from theexits of the guides to the guide entrances, means adjacent to the exits of the respective sets of guides for entering bars delivered livering to all guides at their entrances every b entcr I guide tor nordoor in said track to position and retain each and r attached to the cloth in proper position from the time it leaves the guides to whiclrit belongs until itis ready to red guides. l I

9. In mechanism oi the class described, a smut sheeting machine having 5 vertical the passage of bars attached to .rent portions of cloth. carried by the ada )ted machine, and. a continuous track communi eating with all guides attheir exits and delivering to all ides at their entrances adapted to position and retain each and every bar attached to the cloth in proper position from the time it leaves the guides to which it belongs until it is ready to re enter said guides, switching mechanism arranged in. the track adjacent to guides which have to be passed by any particular bar in going to its own guide lapted to insure the passage oi? such bar to its own guide and openable for the ssage of the. bar which belongs tothe gu adjacent to which the switch is located. is i 10. a machine of the class described, a vertical guide down which bars attached to cloth may pass, means at the bottom of said .ially retaining a pile of bars in said guide, a traclrway below and leading way i.

delivere rom said guide, and a spring wall adjacent to the entrance of said track- Way, for the purposes set forth. a

f. In mechanism of the class described, a VGIUCfll g l for (.16 mechanism timporarily supporting bars in said giiiide, a roller reciprocatable under the end ofthe "de up to a point in close pron mity. to said guide, a closed traclrway ipted guide. in spring member in the wall of v engaged by the roller in its 12. l n niecha to have a bar pass through it. a. normally closed track extending transversely of said guide adjacent to its it, a n rmally closed track extending tranl versely of said guide ad acent to its end, a

door in said track adjacent to said guide, and automatic means operable by the machine as a bar passes from said guide for opening said door, to admit a bar from said guide into said track.

let. in mechanism of the class described, a

ain l(l guide l r he reception of a cloth carrying bars;

to receive bar carried trom said nisrn the class described, a?

allow maximum movement by guide tl'rrough which a bar may pass, a nor mally closed track passing transversely to the bar ad acent to its end, a shdablc door in said track and means for reciproatmg said door to admit a bar from said guide to said track.

15. In mechanism of the class described,

a guide through which a bar may pass, a 5 normally closed track passing transversely to the bar adjacent to its end, a slidable door in said track, and automatic means operable by the machine as a bar passes from said guide for reciprocating said'door to admit a bar from said guide to said track.

16. In mechanism of the class described, a guide through which a bar may pass, a transverse closed track adjacent to the end of the guide, a horizontally disposed U- shaped member between the guide and the adjacent wall of the track, one side forming a door for the track, spring means urging said U-shaped member to the position where it closes the track, and a reciprocatable member traveling parallel with the track adapted to strike said U-shaped member and so move it against said spring that a bar in the guide can pass into the track.

17. In mechanism of the class described, a vertical guide through which a bar may pass, a closed track member below the end of the guide, extending crosswise of it, a U-shaped member 6668 interposed between the bottom of the guide and the track, one side 66 of the U-shaped member constituting a sliding door member traveling on the inside of the upper wall of the track, to close an opening in the track adjacent to the guide, and spring mechanism urging said U-shaped member to such a position that the track is normally closed, for the purposes set forth.

18. In mechanism of the class described, a vertical guide down which a bar may pass, a track passing over the upper end of said guide, provided with a door opening over said guide, a door normally closing said opening, means co-operating with the guide adapted to be moved through said door opening in the track to remove a bar therefrom into the guide, and mechanism autobar removing mechanism through the door, retracting it and closing said door for the purposes set forth.

19. In mechanism of the class described, a track mechanism, an adjacent guide for the passage of a bar, previously carried by the track to a point adjacent to the guide, a

between two positions in one of which it matically opening said door, moving'saidscribed our names.

. means in connection with the guide adapted to be moved through the door opening in the track to grip a bar therefrom and place it in the guide, and positively operating automatic mechanism, opening the door in the track, manipulating the gripping mechanism through the door, retracting the gripping mechanism, and closing the door.

20. In mechanism of the class described, a horizontal track having a transverse perforation 90-91' for the end of a bar, a slot 92 at right angles thereto for the passage of gripping jaws, a closing bar or door 100 recipro'catable longitudinally of the track closes or bars said passage 90 and in the other of which it leaves it open, means on the under side of the track for reciprocating said bar 100 all of the parts being arranged and disposed as shown and described, for the purposes set forth.

21. In mechanism ofthe class described, in combination with front and rear vertical guides adapted to have bars pass down them, a track over the rear guide leading to and 0 terminating at a point adjacent to the front guide, a cloth carrying roller reciprocatable substantially parallel to said track to carry cloth, carrying a cross bar over the rear guide, across the machine to a point adjacent to the front guide, and to deposit a bar carried by the cloth in said front guide, means for driving said cloth carrying roller. a door mechanism in the track adjacent to the rear guide and over which the bar going to the front guide passes, gripping mechanism adapted to pass from a point in proximity to the rear guide through said door in the track to grip a bar at that point, mechanism operated by the same mechanism which actuates the roller for positively operating said door and said gripping mechanism to take the bar from the track into the adj acent guide, the whole being so timed that the separate bars are deposited in the two sets of guides at proper predetermined times.

In witness whereof we have hereunto sub- JAMES E. GILBERT. GLENN W. HARRIS. WVitnesses A. HAPTULLER, JOHN HJARENDS.

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