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Hardwood Record — Veneer 6c Panel Section 



September 25, ]917 



MAHOGANY 

 LUMBER 



About ten carloads 1" No. 1 Com., 

 also other thicknesses and grades of 



MEXICAN & HONDURAS 



MAHOGANY 



dry enough to put in a kiln 

 with safety. 



Tf at any time we can 

 serve you better by 

 telegraphing kindly 

 wire at our expense. 



We are carrying a nice stock of 

 SAWED VENEER, 1/8", 3/16" 

 and 1/4" Mexican ; also several 

 MILLION feet of SLICED 

 1/24" and 1/28" Mahogany, and 

 AMERICAN WALNUT veneer 

 ranging from plain to highly 

 figured. May we send samples 

 to you? 



Huddleston-Marsh 

 Mahogany Company 



2254 Lumber Street 

 CHICAGO 



33 West 42nd Street 

 NEW YORK CITY 



Letters from a Panel User 



SCKAPIXG AND SAXDINC. I'AXKLS 



Monroe, Mich., Sept. 20. Scraping and sanding panels are 



two of the most important machine operations in a panel factory. 



The scraping machine should be one of a steady movement in 

 one direction. There is no succession of rapid blows, as delivered 

 by the cutter-head on a planing machine, neither are there any 

 rapidly revolving cylinders. Nevertheless, w^herever there is 

 movement, there will be some vibration or tremor, just as there 

 will be friction. You must therefore employ a rigidly built ma- 

 chine, erected upon a good foundation. When so placed, there 

 will be a great improvement in the scraped surfaces. 



The importance of setting knives on planer and jointer cyl- 

 inders is well know^n, but often this is not considered necessary 

 on scraping machines. The knife stock must be set level ^vith the 

 lower feed rolls. If the knife stock gets out of line, it can be 

 adjusted by placing a straight edge on all four low^er rolls and 

 across the knife stock. One can level up by placing a piece of 

 thin paper under the straight edge and over the throat in the 

 knife stock. When the knife stock is brought up so that the paper 

 is lightly held, it is then in the right position. 



Always set the knife to take the lightest shaving sufficient to 

 smooth the work. With curly veneers it is necessary to take a 

 very light shaving to avoid tearing out the veneer. If the wood 

 under treatment has hard and soft layers in the grain, the soft 

 layers will be compressed more than the hard, and the shaving 

 will be removed under that condition. The resulting surface, 

 when the pressure is removed, will be more or less wavy. In such 

 a case, light pressure is very necessary. 



The scraper should be operated in a good light and every piece 

 closely examined as it comes through. 



Fancy woods that have been scraped by machine will finish up 

 much more nicely and retain all their fine markings to better 

 advantage than when scraped by hand. Seemingly the panel 

 manufacturer not employing a scraping machine does not appre- 

 ciate the advantages and Xow cost of production of a modern tool. 

 It is evident that where stock is scraped, less sanding will be 

 required. Again, coarse sandpaper is hard on fine fancy woods 

 and only a comparatively fine paper is necessary where the scrap- 

 ing machine has been used. 



Belt Sanders are a type of machine, the possibilities of which 

 today are barely understood. It is therefore well to get the 

 opinions and kinks of all progressive manufacturers. 



The question of the speed of sand belts is very important and 

 is usually overlooked in the average panel or woodworking plant. 

 The number of feet a sand belt should run per minute varies with 

 operating condition, yet under similar average conditions we can 

 be guided safely by what some have experienced. I would suggest 

 that every manufacturer take up the question of belt speed with 

 the manufacturer who supplied the machine. 



Our high grade woods are too expensive to allow us to take 

 much of a chance of spoiling veneered mahogany or quartered 

 oak pieces. 



Benchmen are necessary, however, and there are many jobs 

 that can be accomplished at a lower expense when machined. It 

 is certainly an unprogressive concern that allows bench workers 

 to do the work supposed to be done on the machine. Some manu- 

 facturers may say: "We use boys for this work and don't pay 

 them much money, anyway." This is wrong, absolutely so. 1 

 do not care what you pay your hand sanders, you cannot compete 

 in cost with modern machines and you cannot turn out the quan- 

 tity and quality of the work. 



The simplicity and flexibility of belt sanders adapt them to 

 practically all kinds of sanding, fine or coarse. The belt sander 

 proposition is worth investigating. This machine is necessary if 

 you desire to manufacture at the lowest possible cost of produc- 

 tion. The combination of the roll feed and endless bed sanders 

 gives by far the most logical solution of the problem of sanding 

 the great bulk of flat surface work. A. T. DEINZER. 



All Tkre* of Ua WiU B« Benefited if You Mention HARDWOOD RECOfU) 



