The Shape of Teeth in Log Band Saws and Band Re-Saws T HE importance of the shape of the teeth in band saws is generally well known to filers, but there are some who feel that the amount of tension put into their saws has more to do with obtaining capacity from the mill than the shape of the tooth, or the size of the gullets. In contrast to this idea, there is the experience of a number of competent filers, in mills producing the maximum output of well-sawed lumber, who believe that a large open gullet is a factor which enters into the problem very largely. These filers claim that where the shape of tooth, the hook and the throat room are adequate for the kind of timber and the type of mill it is not necessary to carry so much tension and as a result there is less liability of the saws cracking than where a heavy tension is depended upon to take care of an excessive feed. Since most of the advances in the arts and crafts have been made through combination of ideas, and not through the individual efforts of a single man, it surely would aid band saw filers generally if they would let us have their experience in this direction for publication in THE DISSTON CRUCIBLE, SO that greater efficiency all around may be attained. We are publishing in connection with this article several examples of log and hand re-saw teeth, showing large throats, which do not weaken the teeth. These examples are from saws which are in actual operation, and the mills from which they come are doing splendid work and making record runs. We hope our filer friends will take up this question seriously, and submit full size sketches of the shapes of teeth they are using, with their reasons for adopting them. Discussion of this subject will be helpful to all, and we will be glad to add an editorial word from time to time as the letters are received and published. て Save Food-Build Up Reserves W E can not administer the food problem on the basis of one year's war. We must prepare for its long continuance if we are to insure absolute victory," declare the Food Controllers of the United States, France, Italy, and Great Britain, in a joint resolution adopted at their conference in London. The resolution, which was cabled to the United States Food Administration, emphasizes the necessity of building up reserves in North America as an insurance against possible crop failures here and elsewhere and the diminution of agricultural labor. The resolution follows: "Resolved, That while the increased production of the United States renders it possible to relax some of the restrictions which have borne with peculiar hardship upon all our peoples, yet it is absolutely necessary that rigid economy and elimination of waste in the consumption and handling of all foodstuffs, as well as increased production, should be maintained throughout the European allied countries and in North America. It is only by such economy and elimination of waste that the transportation of the necessary men and supplies from North America to the European front can be accomplished and that stocks of foodstuffs can be built up in North America as an insurance against the ever-present danger of harvest failure and the possible necessity for large and emergency drafts to Eu DISTINGUISHING MARKS OF THE UNITED STATES ARMY AND NAVY (Continued from October Issue) Band Assistant Sergeant Sergeant Corporal Regimental Regimental Battalion Color First Master Sergeant Sergeant Corporal Ordnance Sergeant Corporal Master Master Elec. Sergt. Elec. Sergt. Radio Res. Off. Bugler Private Training Inf. Camp Camp Mess. Stable (Last five chevrons are discontinued but still worn) There are First Class Private service chevrons in. Inf., Cav., F. A., C. A. C., S. C., Eng. C., Q. M. C., Ord. D., Med. D. -Courtesy of United Cigar Stores Co. of America. |