TECHNICAL NOTE NUMBER 255
FOREST PRODUCTS LABORATORY UNITED STATES FOREST SERVICE
AcoUS DEPOSITORY 9
A cov ent method of apple gi lo long, narrow wood trips more uniformly and faster than by brush is provided by a simple, hand-operated glue spreader developed by D. V. Doyle, er of the U. S. Forest Products Laboratory, during the co se of research. The spreader was designed so that it can be moved by hand along the upper surface of a wood strip. It will material up to 4 inches in width. The glue reservoir has sufficlent capacity to cover about 75 lineal feet of nominally 2-1nch-vide lumber at a spreading rate of 50 pounds of glue per 1,000 square feet of area. The simplicity of the unit facilitatSe thorough, easy cleansing after use.
The compactness and portability of the device make it
especially Useful for small gluing operations where limitations of space or cost do not permit the use of a stationary, motordiven spreader. Its construction requires only those skills a facilities ordinarily found in a small workshop.
As shown in figures 1 and 2, the spreading mechanism consiete of a cylindrical wood or metal block or roller mounted in a plywood frae. The cylinder is covered with corrugated rubber floor matting and is flanked with a protruding metal disk or flangs. The metal glue reservoir is hung on a bolt so that its bottom edge forms a "doctor" bar with the cylinder and can be adjusted to regulate the flow of glue. Rubber retaining skirts form a seal between the sides of the reservoir and the flanges.
Since this spreader is the invention of an employee of the Federal government, permission is hereby granted to United States citizens for the free use of the design herewith published. The device is not patented.
FLO MATN BONDEVD
FOR A MORE PERMANENT' CONSTRUCTO MD R CLOSER CONTROL OF INE GLUE SPREAD, A GUAE ~mapMETAL CYLINDER MAY BE SHBST1TUTED FR TIE WOOD CORE
THE LISE OF COPPER AND BRSS is RECOMMENDEO FOR THE CONSTRUCTION OF THE '000OR M -MET7AL PARTS
vm-INCH PLIABLE GASKET RUBER MAT BE U/SED FOR THE RETANING SKIRT ROTATE GLUE RESERVOIR ON BOLT TO REGULATE THE FLOW OF GLUE. TIGHTEN WINfG-AVlrS TO LOCK IN DESIRED POSITIONL
'ETAL BACKUP 4
PLATE Figure l.-Detall drawing of FPL glue spreader.
Z M 93~I F OP VIEW
UNIVERSITY OF FLORIDA 3 1262 09216 7054
Figure 2.--Glue spreader in use. Z M 89435 F