US1794059A - Cleaner attachment for paper driers - Google Patents

Description

A. E BROUGHTON CLEANER ATTACHMENT FOR PAPER DRIERS Feb. 24, 1931.

Filed Oct. 19, 1928 Patented Feb. 24, 1931 warren srar arana arms I ARTHUR E. BROUGI-ITON, OF .MENNEAPOLIS,

MINNESOTA, ASSIG-NOR T0 BROUGHTON CLEANER ATTACHMENT FOB PAPER DRIERS Application filed October 19, 1928.

This invention relates to device of the type described in my application for patent on cleaners for paper driers, filed June 2, 1928, Serial No. 282,411, whereby particles of sizing, fibre and the like 'may be removed from the revolving rolls of paper drying machinery.

In the cleaner of this application a scraper is applied to the periphery of the paper drier to be cleaned and the particles loosened by the scraper are conducted away from the machine by air in a. suitable conduit. When, a sometimes occurs, the moist paper web breaks in the operation of the drier, the free end tends to wind itself upon the drier and passes into the air conduit of the cleaner where it collects in a mass which must be removed. The present invention relates particularly to the means for preventing serious clogging of the cleaner and for removing from the conduit the portions of the broken web.

It is my object to provide simple and efficient means whereby an operator may quickly and easily remove portions of the broken paper web from the air conduit or hood extending along the drier roll. Other objects will appear and be more fully pointed out in the following specification and claims.

In the (.r ings Figure 1 is a plan view of my improred cleaning attachment mounted upon a paper drier of common type, fragmentary porl'ions of the drier and frame being shown; Fig. 2 is a transverse section taken on the line 2 2 of Fig. 1; Fig. 3 is a fragmentary longitudinal section through the cleaner hood, showing the web removing device and Fig. 4 is a detailed sectional view taken on the line 14 of Fig. 1.

in the drawings the numeral 5 indicates a cylindrical paper drier of common type which is revolubly supported at its ends upon frame members 6. The cleaning mechanism comprises a blade 7 of flexible steel extending longitut inal y in contact with the periphery of the dri r as described in my co-pending application above identified.

Along one edge the casiing 8 is pivotally supported upon a shaft 9 which projects at its ends above the frame members6 and has bearings 10 supported thereon.

rigidly secured thereto a Serial No. 313,478.

Upon the inclined upper surface of the casting 8 is mounted a hood 11 for collecting the particles scraped from the drier 5 b the blade 7. This hood 11 is partially closed at one end by a door 12 and its opposite end communicates with a large air suction pipe 13. A suitable fan for creating suction in the pipe 13 and hood 11. The hood 11 is open at the bottom and its edge 14 (Fig. 2) extends closely adjacent to the periphery of the drier 5. Theopposite longitudinal edge of the hood 11 is fixed upon a tubular shaft 15 which is arranged to swivel in bearings 16 secured to the top of the casting 8. Thus the hood 11 is arranged to be swung to an open position as indicated in dotted lines in Fig. 2. The bearings 16 pass through slots 18 in the edge of hood 11.

Within the hollow bore of the shaft'15 is mounted a rod 19, having a handle 20 on one end. The other end of the rod 19 has plate 21 which proj ects radially out through a longitudinal slot 22 in the shaft 15. The plate 21 is bent upward along the inner surface of the hood 11 as indicated at 23 in Fig. 2 and its free edge is slotted to form a series of fingers 24 and 25. These fingers are preferably formed with wedge-shaped front surfaces as inclicated in Fig. 3 and they are bent laterally to project at different angles within the hood 11 as shown in Fig. 2. To facilitate moving the hood 11 to open position I provide a crank or lever 26, having a pair of jaws 27. (Fig. 4) adapted to grip flattened surfaces 28 upon an accessible end of the shaft In operation the fingers 24 and 25 are normally retained in the end of the hood 1 adjacent to the air pipe 13, as indicated in Figs. 1 and 2. lVith the hood 11 closed and the blade 7 resting upon the periphery of the drier 5, the cleaner operates to remove particles from the periphery of the drier roll and to immediately conduct them away from the machine through the hood 11 and pipe 13, as is more particularly described and claimed in my co-pending application above identified. When a brake in the web occurs (not shown) is providedraise it to'open position. J:

ing removed the. broken'pieces Oi web fromadjacent to the drier 5 there is a tendency for the loose end of the Web to Wind itself upon the drier 5 but it is stripped from the drier by the blade 7 and caused to pass into the hood 11. The rapidly rotating drier sometimes delivers a large amount of the broken web intotheshood 11 with considerable force,

the adjacent end of the hood 11, thefingers Qtand 25 may be. drawn from'one end of the hood ill-to the other, as-indicated in dotted lines in-aFig 3. ofthefingersQl anda25 forcibly expel the obstructing portions of the webfrom the hood.- \V-hen the hood becomes badly clogged,

it is sometimesanecessary to move it to open osition, indicatedin dotted lines in Fig. 2

efore drawing the fingers 2% and 25 longi -tudinally through the hood. The hoodis designed towbe raised easily to open position and in pI2tCt1C6,n\Vl16I1l a brake occurs in the web-ate a certain point, the web is delivered into the hood with sufficient force to The operator, havthe hood 11, can quickly return the device to operative position by thrusting the rod 19- back into the, hollow'shaft 15 and-by closing the hood 11, if it has been opened.

Having described my invention what I claim-as new and desire to protect by Letters Patent is:

1; In a cleaner attachment for a paper dry;

- in-g roll, an airrconduitextending longitudinally adjacent to the periphery of said roll to receive particles of foreign matter, sa d conduit being formed to confine a blast of air 1 for removing SfilCl'PitliTiClQS therefrom a means movable longitudinally in said conduit for'expelling'broken pieces of the paper web from said conduit.

2. In a cleaner attachment for a paper dry;

in-g roll, an air concuit-extending longituc 1- -nally adjacentto theperiphery of said=roll to-receive and' remove particles of foreign matter therefrom, said COIlClllllJ having, an outlet near oneendandzmeans-movable longitudinally in said conduit for expelling, -broken piecesof th'epaper web from said conduit, said: means being normallyzlocat'ed near the outlet of'said conduit co-arrest broken pieces of the web.

w I V The sloping front edges na'lly adjacent to the periphery of said roll to receive and remove particles of foreign matter therefrom, means movable longitudi nally in said conduit for expelling broken pieces of the paper Web from said conduit, said means being normally positioned near one end of said conduit and a rod extending parallel to said conduit and connected to said means for moving the same longitudinally through-said conduit:

l. Ina cleaner'- attachment for a paper drier, a scraper extending longitudinally in engagement with the periphery of a drying roll for, removing foreign matter from the peripheral surface of'said roll, a hood arranged along. said" scraper to receive the particles loosened thereby, members extending; transversely. within said' hood to V arrest pieces ofbroken paper, web and means for moving said members longitudinally withinsaid hood to e-Xpelthe broken paper web therefrom.

5. In. a cleaner attachment for: a paper d 'ier: a conduit extending longitudinally adjacent to the periphery ofa drying roll for removing foreign matterfronrthe peripheral surface of said'roll, saidconduit having an outlet at one end, a plurality of members extending transversely Within said hood to arrest pieces of broken paper web near said outletand means foranoving said fingers longitudinally within said hood to expel the broken paper web therefrom, the front sun faces of said members extending: obliquely rearward to loosen .the web by wedge action.

6. In acleaner attachment for a paper drier, a scraper extendinglongitudinally in engagement with the periphery ofa drying rollfor removing'foreign matter from the peripheral surface of said roll, a hood arranged along said scraper to receive the particles'loosened thereby, a tubular memberalong one edge of said hood,,a plurality-of fingers extending transversely Within said hoodto arrest pieces of brokenpaper web and a rod slidable in said tubular member for moving said fingers longitudinally Within said hood to expel the broken paper web herefrom.

In testimony whereof, I have hereunto si 'ned my name to this specification.

ARTHURE. BROUGHTON.

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