This invention consists in hanging two or more circular saws (a cutting off and a splitting saw), in a swing frame, in such a manner that when it is desired to use the splitting saw it can be raised to project any required distance above the table, at the same time the cutting-off saw is below the table, out of the way. When it is desired to use the cutting-off saw, that is raised and adjusted as desired, the splitting saw at the same time falling below the table, out of the way. The invention is fully illustrated in our engravings, Fig. 1 being a perspective view, with part of the table broken away, to show the arrangement of the parts. A is a frame, surmounted by an elevated table, B. This table is made in two parts, B and B', divided on a line with the saws. C is part of a swing frame that holds the saws and saw arbors, moving on a central axis, D. E E are the axles of the saws, G G' carrying on their outer extremities the band wheels, H H', between which is a loose pulley, I; and there is a cutter that can be placed on D for cutting tenons (not shown in our engraving), that can be made to rotate by the pulley, I. J is a rest for the table, which it supports, as well as giving strength to the swing frame, G. K is a segment wheel mounted on D, by which the saws, G and G', are alternately raised or lowered ; it is moved from the handle, N, by the endless screw, L, upon the arbor, M, of N. 0 is a guide pivoted to bars, P, which are pivoted to the table by screws, a. By this means it is made capable of a parallel motion, and can be brought nearer to or removed further from the saws, according to the width of the stuff to be sawn. To P is secured a slotted quadrant, Q, having a screw and nut, R, passing through it, so that the guide or gage, 0, can be firmly adjusted in any desired position. is a projection above the axle of I, to which I can be secured when the saws are to L be operated by a belt coming from above—as .seen in Fig. 2—A A i being the axles of their aseveral band wheels or pullies. When the saws are to be operated by a band coming from below the pullies, H H I, are arranged as shown in Figs. 1 and 3, S being the band. c is a guide, that moves on the half of the table, B', in a groove, f, and it has another guide, d, upon it, for cross sawing. When used for sawing, put a cutting-off saw on one arbor and a splitting saw on the other, then raise the saw it is desired te use above the table, by turning the crank, N, by which the saws may be adjusted to cut any required depth. Instead of saws, cutters may be used for grooving, sticking, planing, &c. When it is desired to cut double tenons, put any well-known cutters on the arbors, E E, instead of saws, also any suitable cutters on the tenon arbor, for cutting the space between the tenons ; then adjust the thickness of the tenons by cranks, N, and place any suitable table upon the frame, A. When it is desired to cut single tenons, two cutters are simply placed fast on the arbors, and the extra cutters omitted. This manner of hanging saws allows one saw bench to answer every purpose of two separate ones. It also obviates the necessity of changing a splitting for a cutting-off saw, and vice versa, which is necessary where but one arbor is used in a saw bench, and it also possesses the great advantage of being used for tenoning with the trifling expense of cylinder cutters. C. P. S. Wardwell, of Lake Village, N. H., is the inventor, and he will be happy to furnish any additional particulars. It was patented March 10, 1857.
This article was originally published with the title "Improved Saw Bench"