US1297125A - Woodworking-machine. - Google Patents

Description

W. McG. ELKS & S. J. DIXON.

WOODWORKING MACHINE.

APPLl CAT!ON FILED APR-28, 19x1.

7 SHEETS-SHEET 1;

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mam/W W. McG. ELKS & S. J'. DIXON.

WOODWORKING MACHINE.

APPLICATION FILED APR-28. 19x7.

Patnted Mar. 11, 1919 7 SHEETS-SHEET 3- wMN W. McG. ELKS & S. .I. DIXON.

WOODWORKING MACHINE.

APPLICATION FILED APR.28. 19:7.

1,297, 125. Patented Mar. 11, 1919.

7 SHEETS-SHEET 4- W. McG, ELKS & SJ. DIXON WOODWORKXNG MACHINE.

APPLICATION HLED APR-28.1987.

1,297,125. Patented Mar. 11,1919

?'SHEETSSHEET 5.

FQFT??? Mali Jazz? tzlj iwa @bb wmy W. McG. ELKS 82 8. J. DIXON.

WOODWORKING MACHINE.

-APPL|CAT10N FILED APR. 28. 19!?- Patented Mat. 11, 1919.

ZSHEETSSHEET 6.

W. McG. ELKS 6; S. J. DlXO'N.

WOODWORKING MACHINE.

APPLICATION FiLED APR.28. 19:7.

Patented Mar. 11, 191-9.

7 SHEETS-SHEET If w mN h PETERS ca. mom-mun Wunmm TTE STATES PATENT OFFTGE.

WILLIE MOG. ELKS AND SAMUEL J. DIXON, OF WELDON, NORTH CAROLINA.

wooDwonKING-MAoHINE.

Specification of Letters Patent.

Application filed April 28, 1917. Serial No. 165,151.

To all whom it may concern:

Be it known that we, WILLIE MoGr. Fans and SAMUEL J. DIXON, both citizens of the United States, residing at Weldon, in the county of Halifax, State of North Carolina, have invented certain new and useful Improvements in Woodworking-Machines, of which the following is a description, reference being had to the accompanying drawings, forming a part hereof.

Our invention relates to wood working machine and has for its object to provide a combinedmachine adapted to efl'ect the several operations peculiar to the manufacture of window screens and window sash.

A particular object of the invention is to provide means for cutting the tenon on the end of the rail or stile of-a window screen and for forming a mold on the rail or stile and cutting out a strip adapted when replaced after the Wire screening is in place, to hold the screening in place.

A further object of the invention is to pro vide means for cutting off the projecting end of the check rail of window sash and boring out and plowing out the recess or pocket in the stile for the sash cord.

A further object of the invention is to provide in connection with the above described devices means for rabbeting, jointing and beading stock.

With these and other objects hereinafter explained in view our invention consists in the construction and combination of elements hereinafter explained and particularly pointed out in the claims.

Referring to the drawings:

Figure 1 is a side elevation of a complete machine embodying our invention.

Fig. 2 is a top plan view of the same.

Fig. 2 is a detail plan view on an enlarged scale of a portion of the bed plate of the window sash trimming mechanism.

Fig. 2 is a central longitudinal sectional view of the mechanism shown in Fig. 2 showing a window sash in position to be operated on.

Fig. 3 is a rear end view of the machine shown in Figs. 1 and 2. I

Fig. 3 is a central vertical sect-ion through the axis of the cutting ofl and boring mechanism on an enlarged scale.

Fig. 4: is a cross sectional view on line of Fig. 1 looking toward the front of the machine.

Fig. 5 is a longitudinal sectional view on line C0 of Fig. 2 looking toward the right.

Fig. 6 is a horizontal sectional view on lin BB of Fig. 1 and Fig. 7 is a cross sectional view on line A-A of Fig. 1 looking toward the rear of the machine.

Fig. 8 is a side view of a corner of the screen frame showing the joint between the rail and stile.

In the drawings 1, 1 indicate supporting legs, 2, 2 indicate upper or top cross bars supported by the legs; 3, 3 indicate upper or top longitudinal bars, and 4, l indicate lower longitudinal bars connecting the supporting legs, the supporting legs with the upper cross bars and upper and lower longitudinal bars constituting a frame on which the operating parts are carried. On the lower longitudinal bars at, 4: is carried in suitable bearings the main shaft 5 provided on one end with driving pulleys 6 having, within the frame, pulleys 7 and 8 and having outside the frame on the end opposite to the end carrying the driving pulleys a small pulley 9 and a large pulley 10.

Taking up first the tenoning devices, 11 is a milled head adapted to cut a tenon on the end of a rail for a window screen. This milled head is carried on the end of a shaft 12 mounted in suitable bearings in the upper longitudinal bars 3, 3 and driven by a belt 13 from pulley 8 on main shaft 5, the belt running on pulley 14: on shaft 12. The rail, on the end of which the tenon is to be cut, and shown at C in Fig. d, is clamped in a horizontally movable carriage 15 arranged to slide on ways 16 and 17 carried by frames each comprising an upright 18 extending directly up from the frame of the machine, horizontal arml9 and upright 20 having its upper portion parallel with upright 18 and its lower portion inclined inward to the frame of the machine. The carriage 15 is provided with a vertical stop 21 against which the rail on which the tenon is to be cut is held by spring 22 and is clamped in posi tion by set screw 23. The stop 21, the spring 22 and the set screw 23 are all adjustably held in suitable slots in the frame of the carriage. In operation, the rail on which the tenon is to be out, having been first cut to the proper length and dressed on two sides, is inserted vertically between spring 22 and vertical stop 21 and clamped in positionby set screw 23. The carriage 15 is then slid forward on the ways 16 and 17 carrying the rail over the milling head by which the tenon is quickly formed.

The rail, or stile, for a window screen is then ready to be shaped and to be prepared to receive the screen wire. The mechanism for effecting this result comprises a bed or guide 2% extending from front to rear and carried by the frame of the machine by means of brackets 130 slotted as shown and held to the frame by bolts 131 feed rolls 25 and 26 and milled head cutters 2T, 23, 29 and 30. The feed rolls 25 and 26 are carried by parallel shafts 31 and of which shaft 31 is driven from shaft 32 by means of sprocket chain 33 running on suitable sprocket wheels on the two shafts. Shaft 32 is provided with sprocket wheel 3% which is connected by sprocket chain 35 with sprocket wheel. 35 on shaft 36 which is provided with gear 37 driven by pinion 38 on shaft 39 which is provided .with pulley 10, driven by belt $1 from pulley 9 on main shaft A belt tightener pulley 42 carried on the arm 121 of a bell crank lever is arranged to be pressed against belt %1 to tighten the belt. the bell crank lever being pivoted at 123 and having its upper arm pivotally connected to operating rod 124 which is notched on its under side to engage fixed stop 125.

The shafts 31 and 32 are carried in frames consisting of uprights 132 and 133 the upright 133 being inclined inward at its lower end and secured to upright 132. A plate 13% in line with the upright 132 has its lower end bent over and engaged by a rod 135 eX tending into spring case 138 in which spring 137 acts to draw the plate 13% downward, plate 13% is provided with a lug 138 and upright 132 is provided with lug 139. the lugs 138 and 139 being connected by adjusting screw 140. The spring 137 thus acts to draw the feed rolls downward.

The milled head cutter 27 is carried on shaft 12 and the rail or stile is carried forward by the feed rolls over this cutter, the cutter acting against the under edge of the rail or stile cutting a mold on its edge and plowing a deep cut parallel with the sides and adapted to receive the edge of the screen wire. The cutter 23 is carried by a vertical shaft e l mounted in suitable bearings in the frame of the machine and arranged to be driven by bevel or friction gears one of which, 45 is carried by the main shaft 5 and the other 46, by the vertical shaft is This cutter 28 is adapted to cut through the side of the rail or stile into the deep cut formed by cutter 27 at a point near its greatest depth and also to round off the strip thus out out of the rail or stile and at the same time to form head or mold in the side of the rail or stile adjacent the cut out strip. The strip thus cut out is. intended be re placed after the screen wire has been placed in position and nailed in place to hold. the screen wire. T he cutters 29 and 30 are carried by shaft 1 T journaled in suitable bearings in an upright e13 extending above the top of the frame of the machine said shaft being provided with a pulley 19 driven by belt 50 from pulley 10 on main shaft 5. One of these 29 is a nosing cutter to out a nose on the outer edge of a stile and the other 30 is a grooving cutter to cut a groove in the outer edge of the stile.

The tenon cut by cutter 11 on the end of the rail or stile so shaped that it fits the mold formed by cutters 27 and 28 so as to form a strong joint requiring no niortising but requiring only doweling or gluing, as shown in Fig. 8.

On the top of the frame of the machine about midway between its sides are arranged ways 51 and 52 adapted to receive the rail or stile of a completed screen. In line with way 51 and in position to act on the edge of the stile of a screen carried on the way is a cutter 53 carried by shaft 12. This cutter is adapted to plow the stile for sliding screens and to also take out any crooks in the stiles caused by tightening the wire screening, and in line with way 52 and in position to act on the rail of a screen carried on the way is a cutter 5% adapted to take out any crooks in the rail caused by tightening the screening. Both cutters and 5% are preferably also atlapted to slightly round off the edges of the rails or stiles. Spring serves to hold the screen against the side of way 51 and spring 56 similarly serves to hold the screen against way 52.

Between the devices above described for cutting the mold on the stile or rail and the ways 51 and 52, are arranged guides or ways 57 and 58. In line with way 5'? and in position to act on the under face of a strip of stock on this way is a jointing cutter 59 on a shaft 60 carried in bearings in the upper longitudinal bars 3. 3 and having on it a pulley 61 connected by belt 62 with pulley 7 on shaft 5. A spring 63 serves to press the strip of stock against the guide or *ay 5. In line with the guide or way 58 is a rabbeting cutter 6i n'iounted on shaft 60 and in position to act on the under face of a strip of stock on guide or way 53. A spring 65 serves to press the strip of stock against guide or way 58. On vertical shaft is above the cutter 23 is a heading cutter 66 in position to out against the side of a strip of stock on guide or way 58. A spring (57 serves to press the strip against the side of guide or way and thus hold it against the cutter.

On the top of the frame of the machine on the side toward the driving pulley 6 are arranged devices for finishing window sash. These devices comprise guide ways 53 and saw 69 secured to the frame of the machine on which a carriage 70 made up of channel irons 100 and 101 spaced apart to leave a space 71 between them is adapted to slide. The carriage is adapted to receive a window sash and to carry it forward into contact with devices by which the projecting end of the check rail is cut ofi, the recess for the knot of the sash cord is bored out and the groove for the sash cord is plowed out from the bored recess to the top of the sash.

The channel irons 100 and 101 receive the sash between them and in line with the space between the channel irons the bed 99 is provided with an opening 72 to receive the projecting end of the check rail. Headed pins or screws 7 3 and 7 4 are provided on the carriage on opposite sides of the slot in rear of the opening 72. A locking arm 75 is pivoted at 76 to the carriage and is adapted to swing horizontally across over the stile of the sash and, by en aging beneath the heads of pins or screws 3 and 7 a, to lock the sash against displacement during the operations on it. The locking arm 75 is provided with a cam slot 77. A pin 78 fixed on the guide 69 is so located that as the carriage moves forward it will force the locking arm into engagement with the headed pins or screws 7 3, 7 4 and as the carriage is returned to initial position it will cause the locking arm to be withdrawn from engagement with the headed pins or screws.

Carried by a sleeve 107 on the upper end of a vertical shaft 80 arranged in line with the opening between the channel irons of the carriage is a saw 79 so arranged that as the sash is pushed over it in the carriage it will cut the projection of the check rail off smooth with the side of the stile. As the carriage carrying the sash moves onward a fixed stop 81 on the carriage comes in contact with a hinged stop 82 extending up through an opening in guide way 69. This stops the further forward movement of the carri zzrge and sash. The sash is then over the In the end of shaft 80 is provided means for inserting and securing a boring bit 83. Shaft 80 is vertically movable within the hollow shaft or sleeve but rotates with it. On the vertical shaft 80 is a loose collar 84: between fixed collars 85 and 86. This loose collar is pivoted to one end of a lever 87 which is fulcrumed at 88 and has its other end connected by a pitman 89 with a foot lever 90 pivoted at 91 to the frame of the machine. By pressing on the foot lever the boring bit will be raised to any desired extent and will, as it is raised, bore into the stile of the sash to form the recess for the knot of the sash cord.

The end of lever 87 near the pitman 89 is connected by cord 92 with the forward end of hinged stop- 82 so that as the foot lever is pressed downward to raise the boring bit the stop 82 is drawn out of the path of the stop 81 on the carriage thus permitting the further forward movement of the carriage, the boring bit being, of course, permitted to drop back by release of the foot lever 90. As this further forward movement of the carriage takes place the stile of the sash comes into contact with cutter 93 on shaft 60 by which the groove in the stile is plowed out to the recess formed by the boring bit.

A cord 94 secured to the forward end of the carriage and running over loose pulley 95 with a weight 96 secured to its lower end serves to return the carriage to initial position. In returning to initial position the stop 81 presses hinged stop 82 downward against the force of spring 97 and passes over it. The pin 78 acts on the locking arm 75 to withdraw it from engagement with the headed pins or screws 73, 74: and the sash may be readily removed.

The guide ways 68 and 69 for the carriage are angle irons held by bolts 98 to a bed 99 secured to the top of the frame of the machine being raised slightly above the upper face of the bed plate by spacing blocks 106. This bed is cut away to permit the upper face of the saw 79 to be flush with its upper face and is also cut away as at 7 2 to permit the projection on the end of the check rail to pass through it in position to be cut off by the saw flush with the side of the saw. In Figs. 2 and 2 a portion ofthe bed plate 99 is shown the sash being indicated at A, B, A being the stile and B the check rail with the projection Z) which is to be cut off.

The channel iron slides 100 and 101 of the carriage engage respectively the sides of guide ways 68 and 69 so arranged as to leave between them the opening to receive the sash. These channel irons are connected by an adjustable hinge 102 and are pulled together by spring 103 the tension of which is regulated by tension screw 104:. The angle irons 68 and 69 are provided with slots to receive the bolts 98, 98 so as to permit of adjustment for sash of different thickness.

The fixed stop 81 is carried by channel iron slide 101 and extends across the space between the two slides and forms a stop for the end of the sash.

The vertical shaft 80 carrying the boring bit 83 is connected with the sleeve 107 by a spline. The sleeve 107 is carried in a bear ing secured to the side of the frame of the machine and is provided at its upper end with a flange 108 to which the saw 79 is secured. The sleeve is provided with one or more slots 109 to permit the borings to escape freely. The vertical shaft 80 is provided with pulley 110' adapted to be driven by a belt from pulley 111 on vertical shaft 41.

The upright 48 which carries shaft 47 consists of a frame comprising a back vertical bar 112, horizontal arm 113 and front vertical bar 11 1-, the lower portion of the latter being inclined inward and connected to the back vertical bar at its lower end. This frame is held to the frame of the machine by bolt 115 and is adjusted vertically by screw 116 which is provided on its lower end with a bevel gear 117 in mesh with a bevel gear 118 on horizontal shaft 119 having hand wheel 120.

In front of the cutting heads 29 and 30 is arranged a chip breaker or deflector 14:1 carried by an arm 142 and consisting of a curved plate adapted to receive chips thrown ofi from the cutting head and defiect them upward the lower edge of the deflector resting on the upper edge of the rail or stile.

The cutting heads are all preferably made of the slip on type.

It will, of course, be understood that we do not desire to be limited to the precise construction and arrangement shown and described as it is obvious that many changes in details and proportions may be made without departing from the spirit of the invention.

Having thus described our invention what we claim is:

1. ln a wood working machine having a frame and a driven shaft carried thereby, of means for cutting a tenon on the end of a rail or stile comprising ways. brackets carried by the machine frame supporting the ways, a carriage movable on the ways provided with means for holding a rail or stile in vertical position, a milled cutter head arranged to be driven by the driven shaft in the path of movement of the rail or stile, and means for cutting a mold on the rail or stile comprising a guide way carried by the machine frame within the brackets supporting the carriage ways, and a milled cutter head on the same shaft with the cutter head for the end tenon arr nged in position to operate on the under edge of a rail or stile on. the guide way.

2. In a wood working machine having a frame and a driven shaft carried thereby. of means for cutting a tenon on the end of a rail or stile comprising ways, brackets carried by the machine frame supporting ways, a carriage movable on the ways provided with means for holding a rail or stile in vertical position, a milled cutter head arranged to be driven by the driven shaft in the path of movement of the rail or stile and means for cutting a mold on the rail or stile comprising a guide way carried by the machine within the brackets supporting the carriage ways a milled cutter head on the same shaft with the cutter head for the end tenon arranged in position to operate on the under edge of a or stile'on the guide way,

a acme and means for feeding the rail or stile to the cutter head.

3. In a wood working machine having a frame and a driven shaft carried thereby, of means for cutting a tenon on the end of a rail or stile comprising ways, brackets car ried by the machine frame supporting the ways, a carriage movable on the ways provided with means for holding a rail or stile in vertical position a milled cutter head arranged to be driven by the driven shaft and means forcutting a mold on the rail or stile comprising a guide way carried by the machine within the brackets supporting the carriage ways a milled cutter head on the same shaft with the cutter head for the end tenon arranged in position to operate on the under edge of a rail or stile on the guide way, a cutter head mounted on a vertical shaft arranged to operate on the side of the rail or stile on the guide way.

1. In a wood working machine having a frame and a driven shaft carried thereby. of means for cutting a tenon on the end of a rail or stile comprising ways, brackets carried by the machine frame supporting the ways, a carriage movable on the ways provided with means for holding a rail or stile in vertical position, a milled cutter head arranged to be driven by the driven shaft in the path of movement of the rail or stile. and means for cutting a mold on the rail or stile comprising a guide carried by the machine within the brackets supporting the carriage ways a milled cutter head on the same shaft with the cutter head for the end tenon arranged in position to operate on the under edge of a rail or stile on the guide way, and means for feeding the rail or stile to the cutter head. a cutter head mounted on a vertical shaft arranged to operate on the side of the rail or stile on the guide way.

5. In a wood working machine having a frame and a driven shaft carried thereby, of means for cutting a tenon on the end of a rail or stile comprising ways, brackets carried by the machine frame supporting ways, i

a carriage movable on the ways provided with means for holding a rail or stile in vertical position, a milled cutter head arranged to be driven by the driven shaft in the path of movement of the rail or stile and means for cutting a mold on the rail or stile comprising a guide way carried by the machine within the brackets supporting the carriage ways a milled cutter head on the same shaft with the cutter head for the end tenon arranged in position to operate on the under edge of a rail or stile on the guide way, and means for feeding the rail or stile to the cutter head, a cutter head mounted on a vertical shaft arranged to operate on the side of the rail or stile on the guide way a cutter head the 1 rail or stile on the guide way, and-means for feeding the rail or stile along the guide way.

6. In a wood working machine having a frame and a driven shaft carried thereby, of means for cutting a tenon on the end of a rail or stile comprising ways, brackets carried by the machine frame supporting ways, a carriage movable onthe ways provided with means for holding a rail or stile in vertical position, a milled cutter head arranged to be driven by the driven shaft in the path of movement of the rail or stile and means for cutting a mold on the rail or stile comprising a guide Way carried by the machine within the brackets supporting the carriage ways a milled head cutter on the same shaft with the cutter head for the end tenon arranged in position to operate on the under edge of a rail or stile on the guide way, and means for feeding the rail or stile to the cutter head, a cutter head mounted on a vertical shaft arranged to operate on the side of the rail or stile on the guide way, a cutter head arranged to operate on the upper edge of the rail or stile on the guide way, means for feeding the rail or stile along the guide way and means for vertically adjusting the feeding means. I

7. In a wood working machine having a frame and a driven shaft carried thereby, of means for cutting a tenon on the end of a rail or stile comprising ways, brackets carried by the machine frame supporting ways, a carriage movable on the ways provided with means for holding a rail or stile in vertical position, a milled cutter head arranged to be driven by the driven shaft in the path of movement of the rail or stile and means for cut-ting a mold on the rail or stile comprising a guide way carried by the machine within the brackets supporting the carriage ways a milled cutter head on the same shaft with the cutter head for the end tenon arranged in position to operate on the under edge of a rail or stile on the guide way, and means for feeding the rail or stile to the cutter head, a cutter head mounted on a vertical shaft arranged to operate on the side of the rail or stile on the guide way, a cutter head arranged to operate on the upper edge of the rail or stile on the guide way, means for feeding the rail or stile along the guide way, means for vertically adjusting the feeding means and means for independently adjusting the height of the cutter head for operating on the upper edge of the, rail or stile.

8. In a wood working machine the combination with a frame of a vertical hollow shaft and means for rotating it, a saw carried by the hollow shaft on its upper end a bed plate carried by the frame having an openingtherein for the saw and a slot leading to the opening, the upper face of the saw being flush with the upper face of the bed plate, a boring bit arranged within the hollow shaft and means for raising it to operate on work on the bed plate and means for guiding work over the saw and boring bit comprising a carriage having oppositely arranged parts adapted to receive the work between them, a fixed stop on the carriage and a movable stop on the frame in the path of the fixed stop. 7

9. In a wood working machine the combination with a frame of a vertical hollow shaft and means for rotating it, a saw carried by the hollow shaft on its upper end a bed plate carried by the frame having an opening therein for the saw and a slot leading to the opening, the upper face of the saw being flush with the upper face of the bed plate, a boring bit arranged within the hollow shaft and means for raising it to operate on work on the bed plate and means for guiding work over the saw and boring bit comprising a carriage having oppositely arranged parts adapted to receive the work between them, a fixed stop on the carriage and a movable stop on the frame in the path of the fixed stop and means for moving the movable stop out of the path of the fixed stop.

10. In a wood working machine, the combination with a frame of a vertical hollow shaft and means for rotating it, a saw carried by the hollow shaft on its upper face, a bed plate carried by the frame having an opening therein for the saw and a slot leading to the opening, the upper face of the saw being flush with the upper face of the bed plate a boring bit arranged within the hollow shaft and means for raising it to operate on work on the bed plate means for guiding work over the saw and boring bit and .a cutting head in line with the path of movement of the work and a movable I carriage for guiding the work over the saw and boring bit provided with mean for locking the work therein.

11. In a wood working machine, the combination with a frame of a vertical shaft and means for rotating it, a saw carried by the vertical shaft on its upper end, a bed plate carried by the frame having an opening therein for the saw and a slot leading to the opening, guides carried by the bed plate, a carriage comprising oppositely arranged parts movable on the guides and adapted to receive the work between them and means for locking the work in the carriage comprising headed bolts and a swingin arm adapted to engage beneath the heads of the bolts.

12. In a wood working machine, the combination with a frame of a vertical shaft and means for rotating it, a saw carried by the vertical shaft on its upper end, a bed plate carried by the frame having an opening therein for the saw and a slot leading to the opening, guides carried by the bed plate therein and a fixed pin carried by the becl a carnage eoinprlslng oppositely arranged plate adapted to eoepeiate Wlth the cam 16 parts movable on the guides and adapted to recess to swing the arm into and out of reeelve the work between them and means locking position.

for locking the well: in the carriage e0rn- In testimony whereof we affix our signaprising headed bolts and a swinging arm tures this twentyfifth clay of April, 1917. adapted to engage beneath the heads of the WILLIE MGG. ELKS. bolts and having a cam recess formed SAMIIEL J. DIXON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents; Washington, I). Q.

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