US9495A - Blasting-machine - Google Patents

Description

UNTED STATES PATENT FFCE.

ARETUS A. VVILDER, OF DETROIT, MICHIGAN.

PLANING-MACHINE.

Speccation of Letters Patent No. 9,495, dated December 21, 1852; Antedated July 17, 1852,

To all whom 'it may concern:

Beit known that I, ARn'rUs ANDREWS VILDER, of Detroit, in "Wayne county and State of Michigan, have invented certain new and useful Improvements in Machinery for Planing Lumber; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to letters of reference marked thereon, in which.-

Figure l, is a plan or top view of the machine. Fig. 2, is a side elevation. Fig. 8, is a central longitudinal section. Fig. 4, is a side view of the main and sliding beds with the cutter stock frame. Fig. 5, is a transverse section taken on the line a a: of Fig. l. Fig. 6, is an elevation of the rear end of the machine.

The nature of my improvements consist in, constructing planing machines so that the board to be planed can be clamped to the reciprocating` bed while being fed by the backward motion of the planes so that the board will be free to move over the stat-ionary bed plate upon which it is planed.

To enable others to make and use my invention, l will proceed to describe the construction, and operation of the machine, together with my improvement.

I construct a substantial frame, of suitable size and form, as represented in the drawings, by the letter A, having cross bearings a, from side to side, above which, and resting on them, is a sliding frame B, with inclined planes b, on its upper side, corresponding with, and fitting against inverted inclines o, on the under side of the main bed C; this sliding frame is movable. longitudinally, by means of the screw CZ, for the purpose of elevating or depressing the main bed, to adjust it to the various thicknesses of lumber to be planed, which is effected by the inclined planes on the frame, passing under, in opposition to those in the under side of the bed, which insures a solid bearing to said bed, and is very essential, in finishing the lumber of equal thickness; this bed has no lateral or longitudinal motion; the face of it is formed with recesses e, near to each end, across it, in which slide the reciprocating sectional beds E, E', the faces of which are slightly raised above the level of the main bed, to prevent the lumber from bearing too hard on the main bed, While being fed into the machine; these reciprocating beds are connected with each other, by side rods j, and have attached to them dogs f, which are hung in segmental brackets g, at each end of said beds, whereby they can be adjusted to suit the thickness of the lumber; the use of these beds and dogs, is to draw the lumber into the machine, and feed it into the side cutters, by their backward motion, returning they pass freely under and over it, while it is held fast by the dogs F, which are mounted in suitable journals at each end of the frame, and which clamp the board between them and the main bed, to prevent it from receding, while under the action of the surfacing planes; the reciprocating bed E is formed so that the center part of it, sinks into or through an opening in the main bed, the under sides of each, being` on the same level, leaving only sufIic-ient substance of metal, in each side of the main bed, to forni slides for the reciprocating bed to slide on, and to allow of recesses or grooves L, across its face, in the direction of its motion, which admit of a grating, or series of bars z', through said grooves, being attached to, and on a level with the main bed, in order that the lumber may have a solid bearing under the last knife, in whatever position this reciprocating bed may be, which, if it were constructed like the one at the opposite end of the main bed, would leave a vacancy under the last knife stock, when at the rear end of its stroke, which would allow the board to spring away from the knife, and therefore be irregular in thickness.

The frame G, which carries a series of knife stocks H, bolted to it, transverse to and above the bed, is supported by bearings m, on the slides n, on either side of the frame A, and on which it travels; having a reciprocating motion, imparted through the rock shaft arms I, which are connected with the wrist pins 7c, on said frame G, by the connecting rods J, at either side of said frame; the rods K, connecting the downward arms of the rock shaft, with crank pins Z, on either end of the shaft L, which is driven by any suitable driving gear; to this frame Gr, are attached the sliding beds, by the rods t, thereby imparting a like reciprocating motion to them; the knife stocks H, are graduated on their under side, each one rearward a shade lower than that in advance of it, the face or under side of each, in its cross section, being perfectly parallel with the bed, and having its permanent mouth piece r, cut away on the under side, to the level of the heel of the knife stock in advance of it; thus the heel of the knife stock, and its mouth piece, take an equal bearing on the board, the knife being adjusted by the set screws 0, and secured to t-he stock by bolts p, so that its edge is exactly even with the heel of the knife stock, thus the difference between the level of the mouth piece, and that of the heel of the stock, will be the thickness of the shaving, that each plane will take off, which is gradually reduced on each knife stock, until the last knife, takes the thinnest possible shaving, putt-ing a ne finish on the lumber; at the rear end of the machine, is attached a table M, formed with brackets, and bolted to the main frame by bolts u, fitting in slots, so as to adjust its level, to suit that of the main bed, on this table at one side, is bolted fast a series of tonguing planes N, at the other side is a corresponding series of grooving planes and jointers O, the bolts which secure these to the table, are fitted in slots, so as to set them nearer to, or farther from the tonguing planes, and thus adapt them to the width of the lumber to be tongued and grooved; t-hese siding planes are arranged in like manner to the surfacing planes, each one rearward, cutting deeper than that in advance.

In operating this machine, the lumber is fed in, as indicated by the arrow on the drawings, and is caught by the dog on the reciprocating bed, and pulled in by its backward motion, on the return motion of which, the board is held fast by the stationary dog F, while the planes pass over it, to the eX- tent of their stroke, when it is again pulled in by the backward motion as before, and so on alternately, and when it has passed the surfacing planes, is fed into or between the siding planes, by the back action of the reciprocating beds and dogs, whereas the surfacing, is performed during their forward motion, thus equalizing as far as possible, the amount of work performed, throughout the entire revolution of the driving shaft.

Having thus described my invention and improvement in machines for planing, tonguing, and grooving boards, I disclaim the invention of planing by a reciprocating plane which planes on its forward stroke and feeds the board on its backward stroke the whole distance of the stroke of the plane as in other machines of this class; but

W'hat I do claim is- The reciprocating beds arranged with respect to the stationary bed substantially as described in combination with the clamps, or their equivalents attached to the plane stock whereby the board is clamped between said movable beds and the clamps, and is free to move over the stationary planing bed and is fed during the backward stroke of the plane the whole length of such stroke.

,In testimony whereof I have hereunto signed my name before two subscribing witnesses.

ARETUS A. W'ILDER. lVitnesses WVM. P. ELLIOT, I. S. SMITH.

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