As a time-saving and labor-saving machine a good circular-saw bench is necessary in every well-equipped pattern shop, and is unsurpassed in capacity and in the variety of work for which it may be used. As shown in one of the views in Fig. 95, it is permanently provided with two saw arbors one carrying a rip saw and the other a crosscut saw, either of which may be raised easily and quickly to cutting position, the other being depressed at the same time. The front half of the table is made to slide, while the whole table can be tilted to an angle of 45 degrees, and will remain in any position desired without clamping. As shown, it is provided with adjustable gages for cross-cutting or mitering, and with an adjustable fence for ripping, all of which are removable at will, leaving the whole upper surface of the table clear. Fig. 96 gives a view of the table from above. As in the case of the turning lathe, the intended speed of the saw countershaft is indicated by the manufacturer.
Fig. 96. Plan of Saw Table.
The single-arbor circular-saw bench, shown in Fig. 97, is a less expensive machine than that just described; but the time lost in having continually to change the saw on the single arbor from rip to crosscut and back again for pattern work is a very annoying as well as expensive inconvenience.
A good band saw, such as the one illustrated in Fig. 98, is indispensable for cutting the curves and irregular shapes that form a part of so many patterns. The best machines of this description have a tilting table which can be set and clamped at any angle, enabling the workman to give the required bevel or draft to his work.
Fig. 97. Single-Arbor Saw Bench.
With a sharp and well-kept saw, there is no more rapid or correct method of cutting out and making circular core boxes of all sizes whose length is within the capacity of the machine. The block from which the core box is to be made must be cut perfectly square on the end which is to rest on the saw table, and, if this end of the block is not large enough to give sufficient base to hold it in an upright position, the block can be supported against the blade of a try-square, or, better still, against a wooden bracket made for the purpose.
The scroll saw, illustrated in Fig. 99, is necessary for cutting inside curves and openings in which a band saw could not be used. Like the band saw, it should have a tilting table. Where both saws cannot be afforded, the scroll saw takes the place of both. While not working so rapidly as the continuously cutting blade of the band saw, it is, when kept sharp and in good running condition, a great time- and labor-saving machine.