US1778650A - Paper-making machinery - Google Patents

Description

Uct. 14, 1930. N w u I 1,778,650

PAPE MMMMMMMMMMMMMM RY lNl/ENTOR Harry N Wev'r ATTORNEY Patented Oct. 14, 1930 UNITED STATES PATENT OFFICE HARRY N. WEIR, OF HOOSICK FALLS, NEW YORK, ASSIGNOR TO THE NOBLE & WOOD MACHINE (10., F HOOSICK FALLS, NEW YORK, A CORPORATION OF NEW YORK PAPER-MAKING MACHINERY Application filed June 10,

My invention relates to improvements in Jordans, heaters and the like, used in the paper making industry, and particularly to improvements in the wood fillers employed between the bars of a Jordan plug or beater roll. l I

Considerable difficulty is experienced, particularly with Jordan plugs, in maintaining the wood fillers between the bars especially at the small end of the plug. Here, the greatest wear occurs, and the present type of fillers soon become so washed and softened that they rise up and are destroyed. Furthermore, as at present arranged, the fillers are easily splintered, and particularly where a hard stock (stock containing a considerable quantity of foreign material such as wire, paper clips, small particles of metal etc.) is being treated, it is difiicult if not im possible to maintain even the highest quality of wood filler for any appreciable length of time.

Heretofore, these fillers have been arranged with the grain of the wood running substantially parallel to the surface of the roll or plug. The fillers are ordinarily driven into the spaces between the bars, from the top, and secured either by being wedgeshaped in cross section, by hands, by swelling into openings in sides of the bars or by a combination of these means.

lf find by using fillers in which the grain of the wood runs substantially normal instead of parallel to the surface of the plug or roll, so that the ends instead of the sides of the fibers are exposed, that the life of the filler is prolonged indefinitely. Moreover, this arrangement of the grain in the fillers readily lends itself to a novel and greatly improved method or means for securing the fillers in place.

My invention therefore includes the novelelements and the combination and arrangev ment of elements described below and illustrated in the accompanying drawing in whichv The figure is a fragmentary perspective section of a Jordan plug or beater roll.

Referring to the drawing, 1 represents the east plug provided with the peripherally 1929.- Serial No. 369,774.

that the bars, 3, need not be dovetailed into the plug but may, if desired, be secured by other means. Furthermore, while the slots, 4, are shown as dovetailed it may be preferable to have them formed with parallel sides.

The opposite sides of each bar, within the zone to be covered by the wood fillers, are provided with projections, 7 These projections preferably merge gradually into the bars at the top, 8, so that the fillers may be driven down radially between the bars, but at the bottom, 9, they form a rather sharp or abrupt offsetor barb which prevents the filler from rising once it has been driven home.

The wood fillers, 10, it will be noted, are arranged with the grain, 11, running substantially normal to the plug so that the surface, 12, exposed between the bars is the end grain or cross grain of the wood. 'As the filler is driven in radially it is compressed, as shown at 13, in passing the projection, 7. When it reaches the wedge, 5, the sharp upper edge of Hence, it is to be understood that I am not limited to any individual detail and that changes, within the purview of the appended claims, may be made without departing from the true scope and spirit of my invention in its broader aspects.

What I claim is 1. A paper making machine of the character described comprising a rotating element having a plurality of cutting bars mounted thereon, and Wood fillers between said bars characterized by having the grain thereof running substantially normal to the surface of the element.

2. A Jordan plug comprising a rotating element, a plurality of radially extending cutting elements mounted in said rotating element Wood fillers located between adjacent elements and characterized by having the grain thereof running substantially normal to the surface of the rotating element, means for securing said Wood fillers in position, and Wedges adapted to penetrate and expand the bottoms of the wood fillers located between said elements.

3. A paper making machine of the character described comprising a rotating element having a plurality of cutting bars mounted thereon, and Wood fillers between said bars characterized by having the grain thereof running substantially normal to the surface of the element, and means for maintaining said Wood fillers in position between said bars.

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