US362896A - Foueth to dayid wilson and eben b - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1' J. B. MAHAFPEY.

PLANING AND MATCHING MACHINE.

No. 362,896. Patented May 10, 1887.

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. J. B. MAHAPFEY.

PLANI NG AND MATCHING MACHINE.

Patented May 10,1887.

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J. B. MAHAFPEY.

PLANING AND MATCHING MACHINE.

No. 362,896. Patented May 10, 1887.

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JAMES B. MAHAFFEY,'0F BALTIMORE, MARYLAND, ASSIGNOB OF ONE- FOUBTH TO DAVID \VILSON AND EBEN B. HUNTING, BOTH OF SAME PLA GE.

PLANING AND MATCHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 362,896, dated May 10, 1887.

Application filed November 3i), 1886. Serial No. 220,251. (No model.)

To (tZZ whom, it may concern.-

Be it known that I, JAMES B. MAHAFFEY, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Matching and Planing Machines, of which the following is a specification.

This invention has reference to improve ments in the construction of machines for tonguing and grooving and planing boards at one operation.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a side elevation ofa machine hav- 1 ing my improvements. Fig. 2 is a top view of the machine. Fig. 3 is a vertical crossseetion on the line 3 3, and shows an elevation of the tongue-cutter mechanism. Fig. 4 is a side view of the same parts. Fig. 5 is a hori- 2o zontal section on the line 5 5. Fig. 6 is a top view of the tonguecutter mechanism. Fig. 7 is a vertical section of the tongue-cutter mechanism on the line 7 7. Figs. 8 and 9 are top and side views, respectively, of the machine,

2 showing an improvement in the feed-rolls.

The first pair, A, and the second pair, A, of feed -rollers and the surface-planer B are mounted on a table, C, in the order named. After these come the feed-rollers D, and at any desired point on the table after the surface-planer the two grooving cutters a may be located. The pulley or pulleys b and belts 0 may be constructed or arranged in the usual manner, or according to the necessities of the case.

5 The machine is organized to divide a rough board into two tongued, grooved, and planed boards, such as are used for floors, ceilings, wainseoting, and the like.

I use special tongue-cutters I and dividing- 0 blades S, which are secured to a suitable body or head. These parts need not be particularly described here, as they form the subject of antongued, grooved, and planed boards, (I, are produced from one rough board, 0.

The cutter-shafts F G are mounted in bearings designated, respectively, It 2'. The two lower bearings, h, are connected by a cross-bar, it, having on its back two vertical flanges, h, the confronting faces of which are beveled or undercut. (See Fig. 5.) These vertical flanges fit and slide up and down on the outward-flaring edges 70 of the two standards H below the table-top. A vertical screw, J, takes effect on the lower cross-bar, h, and serves to vertically adjust the lower cutter. The standards H project both below and above the tabletop, and are supported on a crosswise slideplate, H, which moves in guidesl on the table-top. By means of this crosswise slide-plate the standards, shaft bearings, upper and lower shafts, and both tongue-cutters are all adj ustable laterally, and this adjustment is regulated by a horizontal set-screw, H'", which is fixed in a post, m, on the table-top. This lateral adjustment of all the tongue-cutter mechanism in connection with the guide K will determine the width of the tongued-and-grooved boards. \Vhen shifting these parts by the set-screw 7 5 H the precise adjustment may be determined by the indicator ll, one part (the pointer) be ing fixed to the slide-plate and one part (the scale) to the table-top.

The two upper bearings, 'i, are connected by a crossbar, t, and the lower edge, '5 of these hearings and the upper edge, t, of the said crossbar are beveled or flared out, (see Fig. 7,) so as to fit and slide horizontally in the guides or on the vertically-adjustable carrier L,whieh 8 latter is on the two standards H. 13y having the upper bearings fitted in the horizontal guides a, the upper shaft, G, and upper tonguecutter may .alone be adjusted laterally, so as to place the said cutter in precise 9o relation with the lower cutter. The separate lateral adjustment of the upper shaft, G, and cutter is regulated by a horizontal setscrew, L", which is fixed to an arm, 0, on the said carrier L. 5

By reference to Figs. 4. and 7 it will be seen that the upper and lower bearings for the shafts which carry the tongue-cutters are lothe lower cross-bar, h) has on its back two vertical flanges, which fit and slide up and down on outward-flaring edges 70 of the two standards H above the table-top.

A vertical screw, J, (see Fig. 7,) takes effect on the carrier L, and by raising or lowering it serves to vertically adj ust the upper tongueeutter. It will be seen that means are here shown for the separate or independent vertical .adjustment of the upper and lower tongue-' cutters, whereby the wood tongue to be cut on the board may be made thick or thin, as desired. It will also be seen further on that both cutter-heads are vertically adjustable together or 1n unison.

At the top of the two standards His a crosshead, Hf, which has bearings for the two vertical screws J and J, which turn freely without advancing. Each of these screws, above the cross-head, has a gear-wheel, 1), and the two gear-wheels p are connected by an idle gear-wheel, q. The upper end of each vertical screw, and also the idle gear-wheel, is suitably squared to receive a wrenehm When it is desired to vertically adjust the upper and lower tongue-cutters both together or in unison-that is, to raise both of them or to lower both of them-it may be done by applying the wrench r to either, and thereby the wood tongue to be cut on the board may be formed higher or lower on the board edge. It will thus be seen that connecting mechanism is provided to raise and lower the bearings of both cutter-shafts. When either one of the tonguecutters is to be separately adj usted, the idle gear-wheel q may be removed by simply lifting it from its position, and the wrench applied to the upper end of the proper vertical screw.

. An indicator is employed in connection with the carrier L.

Combined with the tongue-cutter mechanism so as to be automatically adjustable therewith are two board-pressers, N, each of which has position on an opposite side of the upper tongue-cutter, I, and both'of which bear down on the board. These two board-pressers are mounted on a shaft, N, which has bearings N on the two standards H. At one end of the shaft Nisan arm having a'weighr, N It is this weight which causes the pressers N to bear down on the board. Itwill be seen that when the tonguecutters are adjusted laterally by a crosswise movement of the slideplate H the board-pressers N are also adjusted at the same time.

Two surface-planers B may be used, if desired-one for the upper and the other for the lower surface of the board.

This machine produces from a single rough board two divided boards tongued, grooved, and planed. The tongues are formed first, and then the surface is planed.

In a machine of this character it is important that the groove-cutters a cut a groove in the boards of uniform depth. To effect this end I have arranged the feed-rollers A and D (see Figs. 8 and 9) at a diagonal position with respect to the board-guide K, which latter extends lengthwise of the table-top,and of course parallel with the sides thereof. In practice a machine having a twelve or fourteen inch long feed-roller need have said rollers deviate only about an eighth of an inch from a right angle with respect to the boardguide. The effect of this arrangement of the feed -rollers is to crowd the two tongued and planed boards (2 toward the board-guide K, and as the said boards in their passage through the machine are kept crowded against the guide, the groove cutters a will always out to the same depth. v

Having described my invention, I claim and desire to secure by Letters Patent of the United States-- I 1. Ina machine for tonguing and dividing boards, the combination of the crosswise slide H, the two standards H, mounted on and pro jecting both below and above the said slide, and provided below and above with guide- -edges, a cuttershaft, F, below the said slide,

having bearings h vertically adjustable on the standardguides, a carrier, L, vertically adjustable on the standard guides above the said slide, and an upper cutter-shaft, G, having bearingsi lateral-1y adjustable on the said carrier, for the purpose set forth.

2. In a machine for tongning and dividing boards, the combination of the crosswise slide H,th'e two standards H, mounted on and projecting both below and above the said slide and provided with vertical guideedges, a lower cutter-shaft, F, below the table-top, having bearings h vertically adjustable on the standard guide-edges,an upper cutter-shaft, G, having bearings above the tabletop vertieally adjustable on the standard guide-edges, and connecting mechanism to raise and lower. the bearings of both cutter-shafts, whereby the part may laterally be adjusted, and both the upper and lower tongue-cutters may be raised or lowered together, or either one of the tongue-cutters may be raised or lowered separately. 4

3. In a machine for tonguing and dividing side of the said tongue-cutter, for the purpose boards, the combination of the crosswise slide set forth. IO H, standards mounted on said slide, a tongue- In testimony whereof I affix my signature in cutter whose shaft G has bearings supported the presence of two witnesses.

5 on said standards, and a shaft, N, having JAMES B. MAHAFFEY.

bearings also on the said standards and pro- XVitnesses: vided with two weighted board-presses, N, JOHN E. MoRRIs,

each of which has position on an opposite JNo. T. MADDoX.

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