. Canadian forest industries 1908. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. THE ^ATood-^Aror^kzer and Eetaller THIN SHOP SAWS. We have been reading a great deal about thin band saws for rip- ping, but very little has been said about thin circular saws for this pur- pose, although the price of lumber has been going up. This in itself is enough to make this subject very interesting to the owner in a financial way, also from the point of power, etc. A thin saw certainly requires less power than a thick one, the reason being that it removes less
. Canadian forest industries 1908. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. THE ^ATood-^Aror^kzer and Eetaller THIN SHOP SAWS. We have been reading a great deal about thin band saws for rip- ping, but very little has been said about thin circular saws for this pur- pose, although the price of lumber has been going up. This in itself is enough to make this subject very interesting to the owner in a financial way, also from the point of power, etc. A thin saw certainly requires less power than a thick one, the reason being that it removes less ma- terial, , smaller saw kerf. It is all very well to talk about thin saws and all that can be saved by them, but, again, if not properly cared for and used, they may be a source of annoyance and great expense instead of a saving. I wish to call attention to the sketch marked Fig. 2. This is a properly proportioned rip saw. In the first place, never have the saw point more than 1 inch apart; less is better in most cases. I prefer points against the saw. Fig. 3 shows the face of collar, and Fig. 1 shows all in pine, when the saw began to squeak and dodge every time it came in con- tact with a hard knot. There were two reasons for this. One was, the saw was not perfectly round and did not have good sharp points on the teeth; the other fault was, it was too weak in proportion to its diameter for rough-and-ready work. No matter how sharp a saw may be to start with, it will, in a comparatively short time, become dull; then, if there isn't something to offset this dullness to some extent, things will go wrong. Here is the way I remedied the trouble, instead of using the 13 gauge which was substituted for the 16 gauge. A set of two collars, made of cast iron, about 3-8 inch thick, turned up true, was used, so as to press most on the outside edge. By viewing the section marked Fig. 4 it will be seen that the collar is turned tapering on the side to go up. Fig. i, Fig 3 3-4 inches
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectforestsandforestry
