Both the knees and bases of these blocks are composed of solid open hearth steel castings faced with heavy steel bars, presenting wide surfaces for the knees which are grooved to fit them. The knees are supplied with rolls, spud and extension hook dogs. The screws are 4-inch pitch and triple threaded. The gears are steel and cut in a gear cutter and are actuated in setting by hand levers and quadrant or by power in accordance with the wishes of a purchaser. The Prescott Company furnishes these blocks in the following sizes, viz.: 72-inch, 84-inch and 96-inch; being the distance the knees recede from the saw line. And in all other respects the equipment of the carriage is very heavy and fully up to date in every respect. [Illustration: QUICK OPENING LOWER GUIDE] These Guides are applied to all Log Band Saw Mills built by The Prescott Company. When slivers, bark or sawdust wedge in the Guide and cause trouble and heat the saw, then the Guide is promptly opened by the off-bearer and the stuff falls through. When changing saws the Guide can be promptly opened. [Illustration: VERTICAL BAND RESAW Made in 7-foot, 8-foot and 9-foot sizes] The Prescott Vertical Band Resaw This machine is built in three sizes, viz.: With wheels 7 feet in diameter for 10-inch saws. ” ” 8 ” ” ” ” 12 ” ” ” ” 9 ” ” ” ” 12 ” ” It is distinctly a machine for resawing plank, cants or timber up to 16 inches in thickness. The mill proper is provided with a surrounding base and is constructed upon the same principles as are all Prescott Log Band Mills. The feed works being driven by the machine itself makes the whole self-contained. The outside pressure rolls, are adjusted by power; and the inside rolls are operated by hand levers and notched quadrants, and regulate all thicknesses of lumber to 1-32 of an inch. And all of these rolls are power driven. All gearing is steel, the upper guide is power operated, and the mill itself is made self-centering when desired, although this feature is not specially necessary in this machine. No finer machine exists for resawing lumber and timber coming from a log Band Mill or a Circular. It is not adapted for resawing slabs. [Illustration: HORIZONTAL BAND RESAW Built by The Prescott Company, Menominee, Mich.] Standard Prescott Horizontal Band Resaw Mill For Resawing Slabs and Planks The machine shown upon the opposite page has wheels 6 feet in diameter, and admits upon the feed rollers a slab nearly 30 inches wide and about 12 inches high, so that half logs of considerable size may be sawed as well as slabs. Numerous feed rollers are employed instead of the endless platen or apron, thus insuring efficiency and durability.