US878099A - Planing-machine. - Google Patents

Description

PATENTED FEB. 4, 1908.

J. R-YTHOMAS. PLANING MACHINE. APPLIOATION FILED snm'. 3,. 1907.

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PATENTED FEB. 4, 1908. J. R. THOMAS. PLANING MACHINE. APPLIOATION FILED SEPT. 3, 1907.

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WI 177255 Q5 & Zm l/vw JOHN R. THOMAS, OF CINCINNATI,

CINCINNATI, OHIO,

OHIO, ASSIGNOR TO J. A. FAY & EGAN COMPANY, OF A CORPORATION OF WEST VIRGINIA.

PLANING-MACHINE Specification of Letters Patent.

Patented Feb. 4, 1908.

Application filed September 3. 1907. Serial No. 391.075.

T all whom it may concern:

Be it known that I, JOHN R. THOMAS, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Planing-Machines, of which the following is a specification.

My invention is especially applicable in relations where it is desired to bring the side cutter-heads close together, and it is the object of my invention to provide a planing machine with a roller hold-down which is mounted 011 the side cutter-head frame and so arranged that the side cutter-head with its chip-breaker and shaving-hood, together with the roller hold-down, may constitute a self-contained structure arranged to be adjusted as an entity, and the invention will be readily understood from. the following description and claims, and from the drawings, in which latter:

Figure 1 is a rear elevation of my improved device, shown in connection with so much of a planing machine as is necessary to illustrate its relation thereto. Fig. 2 is a side elevation of the same. Fig. 3 is a central vertical section of the same on the line z2 of Fig. 2. Fig. 4 is a plan view of my improved device. Fig. 5 is a detail showing the means for clamping the shaving-hood in position and illustrated in section on the line y' z of Fig. 4; and Fig. 6 is a rear elevation of my improved device, showing the shaving-hood with its superposed hold-down roller and accompanying parts thrown back for exposing the side cutter-head.

It will be understood that my improved device may be employed with the various classes of planing machines in which side outter-heads are contained, such as flooring machines, matching machines, molding machines and the like.

1 represents the machine frame, which may be the frame of any usual type of wood planing machine, provided in practice with suitable horizontally disposed cutter-head or heads and feeding rollers, not shown because well-known. Machines of this type intended for cutting the edges of stock are also provided with side cutter-heads, also in practice termed matcher -heads. I have shown two of these placed opposite each other and provided with suitable adjusting means.

2 3 are side-heads, secured respectively to upright arbors 5 6 journaled in bearings 7 7 8 8 respectively on side-head legs 9 10. These side-head legs are adjustable transve'rsely of the machine on a cross-bar 11 with which the side-head legs have sliding con nection. Adjacent their lower ends there is a cross-bar 13 with which the side-head legs have sliding connection. Cross feed screws 15 16 are employed for adjusting the side-head legs sidewardly, the cross-feed screw 15, having threaded connection with the side-head leg 9 and the cross-feed screw 16' having threaded connection with the sidehead leg 10. Clamp-bolts 17 are provided for clamping the side-head legs in adjusted position. These clamp-bolts are threaded in the straddle-plates 18 of the respective side-head legs and have spiral gears 19 thereon meshed by spiral gears 20 splined to a cross-shaft 21 journaled in the frame of the machine.

The bearings 7 8 are preferably adjustable up and down on slide-ways 23 at the lower ends of the respective side-head legs by means of upright rods 24 journaled respectively in the upper bearings against endwise movement by collars '25 and having threaded ends 26 threaded in lugs 27 of the bearings 7 8, which in the form shown are also provided with step-bearings 28. The bearings 7 8 are adapted to be secured in adjusted positions by means of bolts 29 threaded thereinto through slots 30 at the lower ends of the side-head legs.

The side-head legs comprise shelves 31 31 at their upper ends, which respectively have lugs 32 32 for receiving bolts 33 33 on which shaving-hoods 34 34 are pivoted, the shaving-hoods being respectively provided with uprights 35 35. The shelves are respectively provided with bed-strips 36 36 upon which the stock being planed is supported when passing the side-heads, this stock being shown as a piece of flooring 37.

The shelf 31 at its forward end is adapted to have a side-gage 41 adjustably secured thereto by having a bolt 42 threaded into the lug 43 on the shelf taking against the side-gage, a bolt 44 received through a slot 45 in the side-gage and threaded into the shelf clamping the side-gage in adjusted position. A stationary chip-breaker 46 is adjustable on the side-gage by having a bolt 47 pass through a slot 48 in the chip-breaker and threaded into the side-gage, this adjustment permitting the stationary chip-breaker to be adjusted toward or from the sidehead 2.

The shelf 31 has a swinging chip-breaker 52 pivoted by a bearing 49 about the upright rod 24 of the side-head leg 10, nuts 50 holding the same in place. This chipbreaker has a depending lug 53 against which a roller 54 bears, the roller being on a lever 55 pivoted on a bolt 56 to the shelf and having a cable 57 secured thereto at 58, the cable having a weight 59 thereon and passing over an idler-pulley 60 secured to the side head leg 10. A set screw '61 threaded in the lug 53 strikes the shelf for limiting the inward movement of the chipbreaker. The shaving-hoods are respectively provided with slots 62 62 for accommodating the upright adjusting rods 24.

On the respective uprights 35 35 rollerslides 65 65 are adjustable. These rollerslides respectively have hold-down rollers 66 66 journaled thereon, as on studs'67 screwed into the slides. Screw-rods 68 68 are threaded into lugs 69 69 in the respective uprights and pass. through lugs ,70 7 O in the respective slides 65 65 in which they turn. Collars 71 71 on these screw rods limit the descent of the roller-slides. Preferably volute springs 72 72 take about these screw-rods between the lugs 7 O and the handwheels 73 73, which latter are provided for adjusting the screw rods. Nuts 74 7 4 adjust the tension of the springs.

76 76 are side-gages to rear of the cutterheads on the respective shelves 31 31, adjustable thereon by set-screws 77 77 journaled in bearing-lugs 78 78 on the respective shelves and threaded into lugs 79 79 on the side-gages 76 76.

80 80 are T-bolts which are laterally movable in slots 81 8.1 in the respective shelves 31 31. and slots 82 82 in the respective sidegages 76 76. These T-bolts are arranged to be respectively received by mouths 83 83 in the respective shaving-hoods 34 34. Nuts 84 84 are received over the threaded ends of the T-bolts. If it is desired to swing the hold-down rollers away from the stock and cutter-heads, the respective nuts 84 84 are unscrewed for permitting the bolts to be moved lengthwise of the slots through which they pass in the shelves and side-gages and out of the vslots in the shaving-hoods for bringing the'nuts out of range of the shavinghoods for permitting the latter or either of them to be swung on their pivots, thereby swinging the hold-down roller or rollers for exposing the side cutter-head or heads.

If now a piece of stock is passed through the machine, the rollers 66 66 bear upon the stock with resilient pressure, the descent of the rollers being limited by the collars 71 71 and the yielding movement being governed down roller as well as the other parts superposed on the shelf, as a self-contained structure, so that no disturbance of relation of the hold-down roller with relation to the sidehead or chip-breaker may be caused. My improved construction also permits the swinging of the hold-down rollers out of the Way of the side-heads for attention to the latter by swinging the uprights with the slides thereon and the shaving-hoods upon which the same are supported sidewardly upon their pivots as a unit, thus exposing the side-heads for attention. This may be done with either side-head, and the construction also permits the side-heads to be brought closely together if desired, or either hold-down roller may be removed by reason of its releasable connection with its slide so that a still further approach between the side-heads may be had.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a planing machine, the combination, with a side-head leg, of a roller holddown thereon swinging outwardly on a substantially horizontal axis.

2. In a planing machine, the combination, with a side-head leg, of a shaving-hood thereon swinging outwardly on a substantially horizontal axis and a hold-down roller for the stock mounted on and moving with said shaving-hood.

3. In a planing machine, the combination of a side-head leg, a'shaving-hood pivoted thereon and having an upri ht extending therefrom, a slide on said uprigIit, means for adjusting said slide up and down onsaid upright, and a hold-down roller on said slide.

4. In a planing machine, the combination of a side-head leg, a shaving-hood pivoted thereon and having an upright extending therefrom, a yielding slide on said upright, means for adjusting said slide up and down on said upright, and a hold-down roller on said slide, substantially as described.

5. In a planing machine, the combination of a side-head leg, a chip-breaker pivoted thereon for horizontal movement, a shavinghood above said chip-breaker and pivoted to said side-head leg for up and down movement, an upright on said shaving-hood, a yielding slide, means for adjusting said yielding slide up and down on said upright, and a hold-down roller j ournaled on said slide, substantially as described.

6. A self-contained matcher-leg, chipby the springs 72 72. The pressure on breaker, shaving-hood and hold-down roller in a planing machine, said shaving-hood and In testimony whereof, I have subscribed hold-down roller connected together and my name hereto in the presence of two subhaving combined swinging connection with scribing witnesses.

said mateher-leg, and means for adjusting JOHN R. THOMAS. 5 one of said elements laterally in the machine, WVitnesses:

and thereby simultaneously adjusting all of VINCENT H. BEOKMAN,

said elements laterally in said machine. WILLIAM B. GRIESE.

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