US1052007A - Sheet-conveying machine. - Google Patents

Description

B. LEVI.

SHEET CONVEYING MACHNE.

APPLICATION FILED MAY 7, 1912.

Patented Feb. 4, 1913.

5mes

UNITED STATES PATENT OFFICE.'

BENJAMIN Lnvr, or Naw YORK, N. Y.

SHEET-CONVEY ING IA CHINE.

.. .specianon of :Letters Patent.' Application Med Hay 7, 1912. Serial No. 695,883.. v

.Patented nel. 4,1913.

"To all whom'z't may concern Be lit known that I, BnNaAMiN LnvI, a citizen of the United States, and a residentof New York, county and State of New vsYork, have invented new and useful Improvements in Sheet-Conveying Machines,

'o of which the following is a Specification.

yjlO

The improvements in belt conveyers for sheet material relate particularly to a continuously moving bed or feeding surface composed of separate or independent sections and the arrangement of the belts constituting the sections,.whereby the sheetmaterial being carried, in whatever conditionl it Ymay be, will be properly transferred from .l vone section of the conveyer'to another w1th out distortion or injury. v In'the application of this invention to machines designed to'x sensitized sheet material or was and dry' the same by vpassing it through appropriate tanks and chambers each section of ythe belt conveyer, as it is fitted to act in only one of 'the parts of the machine, will be submitted to only that part of the process incident to the tank or cham-y f vberin which it is located.

' j Conveyers embodying this invention have la continuously longitudinally moving hedor Vsurface and are practicallylaterally contining belts of the two sections pass and the intermediate belts of each section pass over of the conveyer.

one of the outer rollers, whereby any material carried by a section will before its leading edge leaves said section be on vand controlld by the belts of the next section This with other features of construction will be more fully described by reference had to the'accompanying drawin in which igure l illustrates an application of the invention to a two section or two part conveyer, showing one section arranged to carry sheet material, as paper, through a washing tank and the other one arranged to then convey .the sheet material through a drying chamber; Fig. 2 is a front view of the portion of the conveyor showing the rollers which cont-rol the adjacent ends ofthe two sections, omitting the devices in front of the rollers and the conveyerbelts, 'and Fig. 3 is a transverse section on the lineB, 3,' Fig. l, showing a guide 'and draining devicfor the belts 'of the washing section.

Referring to Fig; 2 for a clear underystanding of the principal feature of the invvention a, b vand c represent three 'rollers l constituting the controlling and transmitf'ting means at the adjacent lends of two sections o'f the conveyer, fitted parallel torotate in suitable bearings in the frame for case 'of the lapparat-us. Over the` central roller 'b pass the alternate belts. d ofl the washing section of the conveyer, while the interposed belts e pass over the roller c.

The alternate belts fof the drying section also pass over the roller b between the end of the belts d, and the interposed belts g of this section passover the roller a. It will be seen that-this staggering 'ofthe belts of the two sections `provide for a practically .i

continuous moving surface consisting of longitudinal sections, so vthat sheet material will in passing from one of the sections to lthe other be under control of both sections of belts. The belts i and e pass from the rollers b and c to the guide roller h located in the tank z', and from this roller to the feeding roller j yat the upper part of the.

tank, and hence'under the guide roller lo, also yin the tank, back to the'rollers b and c. The belts f and g of the upper section pass into the drying chamber Z and are therein guided over a roller m at the upper part, a roller n at thelower part and a roller 0 at the central part of the chamber, and from roller o they return to the rollers a and"- b.

lThis chamber may be heated by lmeans of a gas stove 71 in .its lower yend or by suitably arranged steam pipes, asindicated by the dotted circles g.

jTo hold the paper or other sheet material against the belts d and e of the washing section cords r are provided which pass over a roller s, forming in conjunction with the roller j the feeding end of the system, under the roller c, over the roller t and back to the roller s. The-roller t is in frontof the staggered portions of the belts of the two sections, and around it also pass cords u, which press and hold the sheet material against the drying section of the conveyer.

They pass from roller t over the ro ler wt and down around a roller. fv, hen e over guide rollers fw and back to the roller t. The rollers n and 'v with the belts and cords traveling with them constitute the discharge end ofthe system, Rollers y and z are arranged to flex the ascending and descending parts of the belts 'f and g and `cords ul to insure the proper gripping of the sheet material between them. j

Located in the path of the belts d and e as they leave the tank i is a guide stripper 1- having grooves 2, whose depth determined by the roller 3 in front of the belts, allows the belts to pass freely through them, the belts being submitted to suilicient pressure to drain or scrape as much as possible thel washing fluid from the belts. The narrow tongues 4 between the grooves act as lguides for the belts. n

.Any of the large belts carrying rollers maybe connected to any suitable source of power, as for instance the central roller b,- but the preferred arrangement is to proprising sets of belts arranged end .to end,

each set consisting of a plurality of narrow belts, thrceparallel rollersat the adjacentl ends of two sets of belts over the central one of which the alternating belts of twol adjoining sets of' belts pass, and the inter mediate belts of each of the sets passing over one of the outer rollers, thus, longitudi-v v nally and laterally, constituting a practically continuous. conveying surface.

2. A conveyer for sheet materiah'comprising sets of belts arranged end to end, each set consisting of a plurality of narrow belts, three parallel rollers at the adjacent ends of twosets of belts over the central one of which the alternating belts ofl two adjoining sets of belts pass, and the intermediate belts of each of the sets passing over one of the outer rollers, thus, longitudinally and laterally, constituting apractically connarrow belts, three parallel rollers at the ady jacent ends of the-twosets of belts over the central onefof which'fthe alternating belts of the two sets of belts pass, with the intermediate belts of each set passing over one of the outer rollers, and aA guide roller con-A l 65 trolling theother ends l'of thev belts of each Y* ,15net. f v i vide the shafts of the rollers a, b and c withjf 4. A1 siectional, lconveyer for sheet material,

comprising set-sf of narrow belts arranged end to end with the'belts ofthe adjacent sets overlapping, three parallel rollers the central one of which carries some ofthe belts.,

of the two sets, and the outer rollers carryf.

intermediate belts of the two sets of beltsf" y whereby a continuity of the feeding surfacev between sections of the Vcouveyer 41s fmaing tained.

In testimony whereof, I

subscribed my name this 3rd dayf jMygf Witnesses:

ARTHUR E. BLA'rz, ERNEST D. ONDIT.l

y BENJAMIN Liivr. i

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