26 



Hardwood Record — Veneer & Panel Section 



August 10, 1919 



square, from these panels were boiled, and the area of 

 glue line which separated was roughly measured in square 

 inches, as shown in the following tabulation: 



We Manufacture 



ROTARY CUT VENEERS 

 THIN LUMBER SPECIALTIES 



BIRCH DOOR STOCK 

 MAPLE PIANO PIN BLOCKS 



YEARS OF EXPERIENCE BEHIND OUR PRODUCTS 



— MUNISING WOODEN WARE CO. — 



MUNISING, MICH. 



North Wisconsin 



IRON-RANGE 

 HARDWOODS 



The finest and most beautiful 

 Birch, Oak, Basswood, Ash and 

 Elm grown in this country. 



We use this quality stock exclusively for our: 

 ROTARY CUT LOG RUN 

 ROTARY CUT DOOR STOCK 

 ROTARY CUT FURNITURE 

 ROTARY CUT PIANO STOCK 



VENEERS 



ROTARY CUT HOOPS AND LINERS 

 THIN LUMBER SPECIALISTS 



REMEMBER we are specialists in 



LOG RUN VENEERS 



any thickness, any lengths up to 98 in. 

 Lei Us Figure on Your Requirements 



Kiel Woodenware Co. 



KIEL WISCONSIN MELLEN 



Effect of Moist Veneer on Other Panel Qualities 



The tables above leave little room for doubt as to 

 the effect of the moisture content of the veneer on the 

 water resistance of the plywood made from it; but, of 

 course, questions arise as to the effect upon the checking 

 of the faces, opening of face joints, and strength of glued 

 joint. At the present time there are no data available 

 with which to answer the first two points definitely. Gen- 

 eral observation of these panels, however, seems to indi- 

 cate that comparatively little trouble will be met with 

 from that source. 



The strength of the glue joint seems to be just as great 

 with the moist veneers as with the dry. Shear tests made 

 at the Forest Products Laboratory on 25 to 50 pieces 

 each of the birch-poplar combination and the 3-ply 1/12- 

 inch birch did not indicate any appreciable difference in 

 strength between the panels made from the wet and dry 

 veneers. 



In conclusion, it seems safe to say that the moisture 

 content of the veneer plays a very great part in the degree 

 of water resistance of the plywood made with casein 

 glue, and that a high moisture content will assist in the 

 production of plywood made from the thicker veneers 

 if a high degree of water resistance is desired. 



Just why this is true has not been satisfactorily ex- 

 plained. It may possibly be accounted for by the fact 

 that veneer which is too dry immediately absorbs a part 

 of the water content of the glue, thus depriving it of a 

 constituent needed to insure the setting to a permanent 

 water-resistant condition. Another possible explanation 

 is that veneer when glued wet, is in an expanded condition 

 which does not relieve subsequent drying, and that later, 

 when subjected to the boiling test, the stresses caused 

 by the tendency to shrink are relieved by the absorption 

 of water. On the other hand, veneer glued when very 

 dry tends to expand in the boiling test on account of 

 water absorption, and svirelling stresses are set up which 

 tend to shear the glue. Both of these explanations are, of 

 course, only conjectures, and are offered as such for what- 

 ever they may be worth in practical application. 



Calhoun Plywood Company Incorporates 



The Calhoun Plywood Company, Sheboygan, Wis., has been 

 incorporated with a capital stock of $100,000 to engage in the 

 manufacture of veneers, plywood and other hardwood products 

 of similar character. The guiding spirit in. the new enterprise is 

 C. Fred Calhcun, who on August I resigned as secretary and man- 

 ager of the Frost's Veneer Seating Company at Sheboygan to found 

 an industry of his own. He has purchased \varehouse C of the 

 Northern Fuiniture Company, at South Water street and Pennsyl- 

 vania avenue, Sheboygan, and is equipping it with new machinery 

 for veneer cutting and plywood manufacture. The building is 75 

 xl50 feet in size, on a site of 250x300 feet, giving ample room for 

 future extensions. Mr. Calhoun is a son of the late W. C. Cal- 

 houn, president and manager of the Frost interests in Wisconsin. 

 Upon his father's death he succeeded him as manager about three 

 years ago. Fred Calhoun is recognized as one of the most expert 

 veneer men in the American veneer industry and has been asso- 

 ciated with all phases of the business since boyhood under the able 

 tutelage of his father. 



