US1756296A - Window-frame machine - Google Patents

Description

' April 29,1930. s, MADSEN 1,756,296

WINDOW FRAME MACHINE Filed Sept. 27, 1927 8 Sheets-Sheet 1 April 29, 1930. s. MADSEN WINDOW FRAME MACHINE Filed Sept. 27, 1927 8 Sheets-Sheet 2 April 29, 1930. 5, MADSEN 1,756,296

WINDOW FRAME MACHINE Filed Sept. 27, 1927 8 Sheets-Sheet 3 Mn/enfor 6 7177 wfien W 1; KM 9M )qlfaz ggis April 29, 1930. s. MADSEN 1,756,296

WINDOW FRAME MACHINE Filed Spt. 27, 1927 I 8 Sheets-Sheet 4 April 29, 1930. s. MADSEN WINDOW FRAME MACHINE Filed Sept. 27. 1927 8 SheetsSheet 5 Jeri: Wuhan %%ZWM 04H0rn s April 29, 1930. s. MADSEN 1,756,296

WINDOW FRAME MACHINE Filed Sept. 27, 1927 8 Sheets-Sheet 6 April 29, 1930. ,SJMADSEN wmnow FRAME MACHINE Filed Sept. 27, 1927 8 Sheets-Sheet 7 April 29, 1930. s. MADSEN 1,756,296

- WINDOW FRAME MA-CHINE Filed Sept. 27, 1927 8 Sheets-Sheet 8 W W74flome s Fatented Apr. 29, 1936 UNITED STATES ra rsnir series SEEN MADSEN, F CLINTON, IOWA, ABSIGNOR T0 CURTIS COMPANIES, INCORPORATED,

- OF CLINTON, IOWA.

WINDOW-FRAME MACHINE Application filed September-27, 1927. Serial No. 222,294.

The object of my invention is to provide a machine for cutting window frame members;

More particularly, it is my purpose to provide a machine whereby window frame side jambs, head j ambs, sills, side casing members and head casing members, after having been cut to, width and approximate length, may have further operations for completing them. I

It is my urpose in this connection to provide a mac ine having a series of units to which the stock is fed automatically and by successive movements for performing the various operations necessary. I

Another purpose is to provide such a machine in which the units are readily adjustable for performing a variety of operations.

With these'and other objects in View, my invention consists in the construction, arrange ment and'combination of the various parts of my window frame machine, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which:

Figure 1 is a top or plan view of a window frame machine embodying my invention.

Figure 2 is a front elevation of the same, parts being broken away.

Figure 3 is a rear elevation of the machine, parts being broken away.

Figure 4 shows an end elevation of the machine as viewed from the left-hand as seen in Figure 1.

' Figure 5 shows an end elevation of the opposite end of the machine from that shown in Figure 4.

Figure 6 is a detail, sectional view taken on the line 6-6 of Figure 1.

Figure 7 is a similar View taken on the line 7-7 of Figure 1.

Figure 8 is a sectional view taken on the line 88 of Figure 2.

Figure 9 is a perspective view of a side j amb member of the kind made with my machine.

Figure 10 is a detail, sectional view taken on the line 10-10 of Figure 9. Figure 11 is a perspective view of ahead j amb.

performed on them Figure 12 is a detail, sectional view taken on the line 12-12 of Figure 1.

Figure 13 is a perspective view of a side casing member, forming part of a window casing. f

Figure 14 is a detail,'sectional view taken on the line 14-14 of Figure 1.

Figure 15 is a similar view taken on the line 15-15 of Figure 1.

'- Figure 16 is a perspective View of a head casing member.

Figure 17 is a detail, sectional view taken on the line 17-17 of Figure 16, illustrating the position of the cuttin tool in performing one of the operations on t e head casing member.

Figure 18 is a detail, sectional view taken on the line 18-18 of Figure 4.

Figure 19 is a detail, sectional view taken on the line 19-19 of Figure 8.

the pocket end cutting units viewed as indicated by the line 20-20 of Figure 6.

. Figure 21 is a detail, sectional view taken on the line 21-21 of Figure 2.

Figure 22 is a detail, sectional View taken on the line 22-22 of Figure 6; and

Figure 23 is a detall, sectional view taken on the line 23-23 of Figure 22.

The machine under consideration is one of the multiple unit type. The various units perform varlous operations upon difl'erent members of Window casings and jambs.

The side j amb stock, for example, is placed in a hopper and is then automatically advanced through the machine and operated on by the various units for completing the side -jam Since the most typical unit manufactured on this machine is the window side j amb, I I

shall during the description of the machine describe it as used for the making of side jambs, but when necessary will refer to the mechanisms as used for operations on other members and their functions.

In a preliminary may and for greater clearness in the subsequent explanation, I will refer to the side j amb illustrated in pers ective in Figu e 9 and indicated by the re erence numeral 10. The stock for the side jamb is supplied to the hop er, cut to width and approximately cut to ength, and with the parting stop groove 10 formed therein. Usually in this machine, the side jamb is completed by performing the end operations of cuttlng the top ends straight across and of cutting the bottom end on a bevel or incline to fit the sill.

These jambs are also provided with sash weight pockets. The pockets are formed bycutting out rectangular pieces. This piece for convenience I shall call the pocket member. This pocket member is indicated in Figure 9 at 10. In cutting out the pocket member, it is necessary to make the four end cuts 10 and two longitudinal side cuts 10.

The completion of the side jamb member requires the countersinking of two recesses 10 for weight pulley plates and the cutting or routing out of elongated slots 10 for the pulley wei ht ropes and pulleys.

For t e purpose therefore of completing a side jamb member, the present machine is provided with units for cutting both ends of the stock, for making end cuts and lengthwise cuts for the sash weight pocket, for routing out a countersunk portion for the pulle plates, and routing out the slots for the p le s. Likewise the machine performs a series of operations for other window frame or j amb members.

Where head jamb members 12, such for instance as shown in Figure 11, are to be completed, stock is furnished to the hopper, cut to width and approximately to length and with the longitudinal groove 12" formed therein.

The machine cuts off the ends accurately and cuts the grooves 12 near the ends of the stock.

Where a side casing member 14, as is shown in Figure 13 is to be com leted, the stock is supplied, cut to width and approximately to length, and this machine cuts it to length,

cuts the tenoning grooves or rabbets 14'',

and makes the relish cut 14".

If a head casing member, such as is shown in Figure 16 at 16, is to be completed, stock is cut to exact length on the machine and the grooves 16 are cut in the side edge thereof a; the opposite ends of the said casing mem- For performing the series of operations on any of these members, stock is automatically advanced and stopped at various stations in the machine, and the units are automatically operated for-performing all of the operations of the machine.

The machine is a double-end machine in the sense that it has units for performing operations at both ends of the stock advancing through it.

I shall now proceed to the description of the structure of my improved machine.

Frame The left-hand unit supporting frame has i the bed plate 20, the front and rear end plate members 22 and 24, as illustrated for example in Figure 4, and the inside upright plate or frame member 26.

The right-hand unit supporting frame has similar arts, the bed plate being designated as 20, t e front and rear end plate members as 22 and 24, and the inside late as 26. (See Figures 5 and 6.) The b plate 20 is mounted to slide on the base 18 and for that purpose is provided with a groove 28, which receives a rib 30 on the base.

For accomplishing the sliding movement of the right-hand supporting frame on the base 18, a shaft 32 is suitably non-slidably journaled on-the base 18 just below the bed plate 20*. (See Figures 1, 5 and 8.)

The bed plate 20' is provided with a threaded nut 34 which receives a threaded portion 32 of the shaft 32. (See Figure 8.)

Mounted on the base 18 is an ordinary reversible motor 36 having the shaft 38 on the small sprocket 40. (See Figures On the shaft 32 is a sprocket 42 aligned with the sprocket 40. A chain 44 travels on the sprockets 40 and 42 providing for the transmission of power from the, motor 36 to the shaft 32 for thereb adjusting the righthand unit supporting rame toward or from the left-hand unit supporting frame.

By reversing the motor 36, the right-hand frame'may be adjusted either toward or from the left-hand; frame on the base 18 as may be desired.- ,7

M dfim'ng shaft As shown in Figure 1, power is supplied to the shaft 46 from the motor 52 by means means of the belt 60 traveling on those pul-' leys.

Of course, it will be understood that any ordinary method might be employed for imparting rotation to the shaft 46.

pp r At the front of the machine, there is provided a hopper for receiving the stock to be fed to and operated on by the machine. The hopper is adjustable to accommodate stock of different lengths and widths.

Mounted on the left-hand frame member is the ho per end member 62, having the flange 64 olted as at 66 to the frame. (See Figures 1, 2, 4 and 8.) L

The upper end of the hopper end member 62 is bent laterally at 68 to facilitate the insert-ing of the stock.

On the right-hand frame member is a similar hopper end member, the parts of which are indicated b the reference numerals just used in describing the left-hand hopper end member with the addition of the letter a.

The bolts 66 and 66 extend through elongated slots 70 and 7 0* so that when their nuts are loosened, the bolts may be adjusted laterally of the machine for varying the length of the hopper.

On the inner face of each ho per end member 62 and 62 adjacent the e ge nearest the back of the machine is an upright member 72 formin a rear hopper wall element, Which is carried %y its end member, but is not otherwise adjustable. (See Figure 8.)

The members 72 terminate enough short of the bottom of the hopper to permit stock to be advanced from the hopper to the first operating unit of the machine.

The hopper members 62 and 62 have mounted on them the adjustable upright front hopper wall members 74 and 74". (Figures 1, 2 and 21.) The members 74 and 74 are fixed to transverse bars 76 and 76 slidably received in grooves 78 and 78' formed in the members 62 and 62. Bolts 80 and 80 are secured to the bars 78 and 78 and are extended through elongated slots 82 and 82 formed in the members 62 and 62 at the bottoms of the grooves 78 and 7 8*. Hand wheel nuts 84 and 84 are used on the bolts 80 and.

The upper edges of the frame members 26 and 26 form the bottom of the hopper for supporting stock therein and also serve for supporting the stock during its sliding ad- Vance through the machine.

by loosening the nuts on the bolts 66 and 66* and adjusting the members 64. I

It Wlll also be noted, of course, that the right-hand hopper is carried by the righthand unit frame, so that it is automatically adjusted with the adjustment on the base 18.

Stock ad va'rwz'n-g writs of that frame The upper parts of the frame members 26 and 26 are provided on their inner faces with dove-tailed grooves 86 and 86 in which are received the sliding bars 88 and 88". Pivoted to the inner faces of the bars 88 and 88 at suitably spaced intervals are the pawls 90 and 90 (see Figures 2 and 8), Wl'llCh have the weighted ends 92, which serve to keep the stock en aging ends of the pawls normally raised. et during the return movement of the bars 88 and 88, the pawlswill slide under the stock.

Referring to Figure 8, I have used the reference numeral 10 to represent a piece of stock. I For reciprocating the bars 88 and 88 by strokes of proper length, I provide the following means:

Fixed on the main drive shaft 46 for the left-hand set of units is a worm 96, which meshes with a worm wheel 98 fixed on a shaft 100 suitably journaled in the left-hand unit frame and extending fore-and-aft in the machine. (See Figure 6.)

For the'right-hand unit, there is a worm 96 splined on the shaft 46 to permit it to slide with the adjustment of the right-hand unit frame. f

It will be noted that the worm 96 is arranged between suitable bearings 102 and 104 supported on the left-hand frame member.

Similar bearings are provided on the righthand frame member for the shaft 46 and the right-hand worm 96 is held between similar bearings.

J ournaled on the right-hand unit frame is a. shaft 100, similar to the shaft 100, which has its worm wheel 98" corresponding to the worm wheel 98.

On the shafts 100 and 100 at the front of the machine are beveled gears 106 and 106 1 shown in Figure 2.

At the front of the machine, the right and left-hand unit frame members carry pairs of brackets 108 and 108 (see Figures 2, 4 and 5.) Journaled on the brackets 108 and 108 respectively are shafts 110 and 110. On the shafts 110 and 110 are rotatably but nonslidably mounted opposed beveled gears'112, 114, 112 and 114. (See Figure 2.)

Splined on the shafts 110 and 110* for sliding but non-rotatable movement relative to said shafts are clutch sleeves 116 and 116 provided with the annular grooves 118 and 118. The clutch sleeves have clutch teeth similar 120 and 120 for coacting with the respective beveled gears 112 and 114 and 112 and 114.

Clutch operating shafts 122 and 122 are slidably mounted on the brackets 108 and 108 and carry clutch operating arms 124 and 124, which project into the grooves 118 and For sliding the shafts 122' and 122' for operating the clutches, I provide the levers 126 and 126' pivoted on the left and right-hand unit frames, and having loose pivotal connections with the shafts 122 and 122.

By manipulating the levers 126 and 126, the clutches may be operated for causing the shafts 110 and 110 to be operated in either direction.

The desirablity of such variationin the direction of rotation of these shafts will be hereinafter fully referred to.

'Journaled in the lower ends of the brackets 108 and 108 are shafts 128 and 128" to which are fixed the arms 130 and 130". mounted in guides 132 and 132 are blocks 134 and 134, which are provided with pins 136 and 136.

On the shafts 110 and 110" are fixed arms 138 and 138' to which the pins 136 and 136 are pivotally connected.

Thus when the shafts 110 and 110" are rotated, the arms 138 and 138 will be rotated.

for sliding the blocks 134 and 134" and imparting reciprocating movement to the arms 130 and 130.

The arms 130 and 130 are operativel connected with the slide bars 88 and 88 in the following manner:

At the upper end of each arm 130 and 130, I provide a pair of ears 140 and 140'. Between the ears 140, there is pivoted a sleeve 142 and between the ears 140' is-pivoted the sleeve 142". Rotatably received invthe sleeve 150 is an arm 154 carrying a sleeve 156 re 142 is a shaft or rod 144, which is held against sliding movement in the sleeve 142 by means of the collars 146 and 148. a

Similarly, rotatably, but non-slidably mounted in the sleeve 142" is the shaft or rod 144 held against sliding movement by the collars 146 and 148.

Pivoted to the slide bar 88 is a threaded nut 150 in which the threaded end152 of the rod 144 is received. Projecting from the nut ceiving the rod 144.

It will thus be seen that the reciprocation of the arm 130 acts on the rod 144 for reciprocating the slide bar 88. The slide bar 88 and arm 130 are connected by similar parts designated by similar numerals with the addition of the letter a. p

It is sometimes desirable to give to the bars 88 and 88 a speeded-up movement toward the rear of the machineand a slower return movement toward the front of the mach ne.

This might be true where it was desired to have some of the units operate on stock dur- Slidably ing the movement of the bars forward] in the machine and while the stock remained stationary.

When it is desirable to thus advance the stock rapidly toward the rear on the bars 88 and 88, the'clutches above described are regulated so that the shafts 110 and 110 will be actuated in such manner that the pins 136 and 136 will carry the arms 130 and 130' rearwardly in the machine during the lower part of the revolution of said pins, and will serve to carry the arms 130 and 130 forwardly in the machine when the pins are at the upper part of their revolution. 1

This will speed up the rearward movement of the bars 88 and 88 and slow down their forward movement; p

By reversing the clutches, the forward movement of the bars may be speeded up and their rearward movement slowed down. This is desirable for some operations.

It will be seen that the bars 88 and 88' and the pawls 90 and 90' will serve to advance the Stock slidingly on the frame members 26 and Owing to the manner of operation of some of the saws, it is desirable that the stock be held down firmly on said frame members during its progress through the machine, and while it is stationary and being operated upon.

I have provided means-for this purpose.

Traveling tracks The traveling tracks now to be described form a part of the stock advancing means.

On each of theunit frames is mounted a continuous guide track 158 and 158'.

f Referring now to Figures 4 and 5, it will be noted that on the unit frames are upwardly projecting brackets 160 and 160. Threaded mto the upper parts of these brackets are upright shafts 162 and 162.

On'the upper parts of the tracks 158 and 158 are brackets 164 and 164 and 166 and 166 in which the upper ends of the shafts 162 and 162 are journaled. The brackets 164, 1643.166 and-166 are also provided with journals 168, 168", 170 and 170, in which are journaled the shafts 172 and 172".

On the shafts 162 and 162 are beveled gears 174 and 174 meshing with beveled gears 176 7 and 17 6 on the shafts 172 and 172".

On theshafts 172 and 17 2' are hand wheels 178 and 178" by which the shafts may be manipulated for imparting rotation to the shafts 162 and 162 and raising or lowering them, for thus raising and lowering the tracks 158 and-158.

The tracks are provided with projecting pins 180 and 180 traveling'in elongated slots 182 and 182" for thus guiding the tracks in their up and down. movement.

On the outer surface of the tracks 158 and no I 158 extending entirely around themis a hardened steel strip or'bar 184 and 184".

Traveling on each track is an endless conveyor device, comprising a series of channelshaped links 186 and 186. (See Figures 4, 5 and 19.)

J ournaled in the links 186 and 186 are flanged wheels 188 and 188, which travel on the strips 184 and 184. Secured to each link 186 and 186 is a foot 190 and 190 preferably of rubber.

Referring now to Figure 19, it will be observed that the lower part of each track 158, 158 is channel-shaped as at 192, 192 to snug- 1y receive and guide the endless traveling devices.

While I have called the endless traveling devices a part of the stock advancing means, it may be noted that the advancement of the stock is what advances the endless traveling members, and that the endless traveling members and particularly their rubber feet simply snugly hold the stock down against the frame members 26 and 26, as illustrated for instance in Figures 7 and 19.

Gut of units The first units, which operate on the stock, as the stock is advanced by the bars 88, 88 and the pawls 90, 90 are the cut oif units. The left and right-hand units are not quite the same.

I shall therefore describe the left-hand unit and then the right-hand unit.

Referrin now to Figures 1, 2, 6, 22 and 23, it will e noted that the left-hand unit frame member 26 is provided with an. upright gibway194, having the usual form of a dove-tailed channel. Vertically, slidably 40 mounted in the gibway 194 is a bracket 196.

Similar gibways and substantially similar brackets are used for several of the units for adjustably supporting various motors and operating devices.

The bracket 196 is provided with a pin 198 projecting through an elongated slot 200 of the-frame member 26 as shown in Figure 8.

A bell crank lever 202 is pivoted on the frame member 26 at 204 and has one arm standing just below the pin 198. Suitably journaled in a bearing 206 supported on between the bell crank 202 and the pin 198 is necessary.

By raising or lowering the bracket 196, the motor su ported thereon is raised or lowered.

Referring now to Figures 6 and 22, it will be noted that the bracket 196 has a laterally projecting ortion 220, the upper edges of which are ared outwardly slightly.

Mounted on the portion 220 of the bracket 196 is a saddle 222, having the receiving flanges 224, which receive and slide along the bracket portion 220. Between one of the flanges 224 of the saddle 222 and the bracket portion 220 is a removable gib 226. One of the flanges 224 is provided with a series of set screws 228 by which the saddle 222 may.

be rigidly locked to the bracket member 220.

The saddle 222 is provided on its upper surface with curved guides 230 and 244 at its side edges to receive a block 232, which slides between the guides 230 and 244.

The saddle 222 is given its sliding adjustment on the bracket member 220 in the following manner:

Screwed into the block 232 is a threaded rod 234. The saddle 222 is provided at one side with a downwardly projecting lug 236 through, which the rod 234 is rotatably extended. The rod 234 has on each side of the lug 236 the collars 238. The outer end of the rod 234 is squared at 240 to receive a wrench.

By imparting rotation to the rod 234, the saddle 222 may be adjusted laterally in the machine.

The guide members 230 and 244 on the saddle 222 have their inner faces beveled as shown in Figure 23, so that there is a dovetailed connection between the block 232 and the saddle 222. The block 232 is adjusted by hand on the saddle 222 and is rigidly locked thereto by means of bolts 242. (See Figure 22.) The bolts 242 are mounted in the bracket member 220 and are screwed into the guide member .230, which is detachable, so that its beveled edge may be drawn tightly against the coacting beveled edge of the block 232.

Two or more of the screw bolts 242 may be provided.

The block 232 is provided with guide I wardly extending In 258 similarto the lug 224 already describe in which is journaled for rotation a shaft 260, Which is held against sliding movement by means of the collars 262. I

The outer end of the shaft 260 is squared as at 264. Its inner end is threaded as at 266 to coact with a threaded hole 268 in the base 248. By rotating the shaft 260, the base may be adjusted on the block 232.

Saws of various kinds, such as the saw 270, may be fastened on the motor shaft 272.

It will thus be seen that by means of the bell crank lever 202, shown in Figure 8, and the connected parts, the bracket 196 (Figure 6) and the parts carried thereby\ may be raised or lowered and held in position which will limit its downward movement.

The saddle 222 may be adjusted laterally on the bracket member 220 by means of the bolt 234.

The block 232 may be adjusted on a curved line manually, when the bolts 242 are loos ened. v

The motor and its base 248 may be adjusted by means ofthe shaft 260. I

In the use of the motor 250, the usual practice is to raise it before the stock is advanced to it, and then to lower it.

During the lowering operation, the saw 270 operates on the stock, such for instance as the side jamb 10.

By arranging the motor 250 at an angle, the end of the stock will be cut on a bevel to fit the sill.

the bracket 196.

Between its sides, there is journaled on the lowering mo- For impartin the rising and motor 250, I

tion to the b'rac et 196, and the provide the following means:

One arm of a bell crank lever 274, shown in Figure 6, is pivoted to the bracket 196. A

threaded sleeve 276 is pivoted to the other arm of the bell crank lever 274. A threaded shaft 278 is received in the sleeve 276 and has one end squared as at 280 to receive a wrench. Its other end is rotatably but non-slidably journaled in a collar 282 pivoted as at 284 on bell crank lever 274, a roller 286, which coacts with a cam 288 on the shaft 100.

During the operation of the cam 288, the

' bracket 196 carrying the motor 250 is raised away from the bell crank 202 and is then permitted to drop downwardly.

For adjusting the rod 278, the movement imparted by the cam 288 may be'varied for thus varying the effective throw of the cam and the degree of up and down movement and position of the motor 250.

I will now describe the right-hand cut oil unit.

This unit includes a bracket 196" having at its upper end an extension 220. The bracket 196" is mounted in a gibway 194 in the manner already described in connection with the bracket 196. Pivoted to the bracket 196 isa bell crank 274 similar to the bell crank 27 4", having a similar roller 2865 coacting with a cam 288 on the shaft 100.

The bracket 196' has a threaded rod 278 similar to the rod 278 and similarly connected with its bell crank 274 "and the bracket 196% 298 pivoted at 300 between the ears 292. The

base 298 is slidably adjustable on the ears 294 and is secured thereto by means of set screws or the like 302 extended through elongated curved slots 304 and screwed into the base 298. Y

Thus the motor 296 may be tilted to the position for instance shown in Figure 6.

The motor 296 has the shaft 272' to receive a saw 270. V

The bracket'196 is adjusted to a predetermined height on the frame 26 by means of the mechanism shown in Figure 6. This adjusting mechanism is similar to that provided for the bracket 196 and illustrated at the lefthand part of Figure 8, and consisting of the bell crank 202 and connecting parts.

The bracket 196" has the pin 198 similar to the pin 198 projecting through a slot similar to the slot 200.

The bell crank 202 is similar to the bell crank 202 and has similar operating mechanism, which need not be further described.

For adjusting the saddle 290 on the bracket member 220, the saddle 290 is provided with a downwardly extending lug 306, in which is non-slidably but rotatably journaled the rod 238 similar to the rod 238 and connected with c the bracketmember 220 in the same manner that the rod 234 is connected with the bracket member 220.

It will be noted that the motor 296 may be used for cutting stock on a straight edge orv for beveling the edge of the stock, as for instance for the purpose of shaping window casing members to fit a slanting sill.

The motors 250 and 296 of the cut off units are used on nearly all the stock that is operated upon by this machine, either for trimming off the ends on a straight line or for cutting them on bevels, as indicated at the lefthand side of Figure 1 and the right-hand side of Figure 6. 4

The operating mechanisms for the cut oil units are so synchronized that the motors are moved upwardly and held in raised position while the stock advancing pawls are moving the lowermost iece'of stock 94 from the pile in the hoppers see Figure 8) to the first operating position, which is the position for operation by the cut off units.

The cams 288, 288 then function to lower the motors 250 and 296 forcutting off the ends stock from the hopper to the cut off position,

'-The second unit mounted on the left-hand unit frame is the pocket end cutting unit, which will now be described.

Pocket and cutting unit The pocket end cutting unit .isiithe one which makes the saw kerfs indicated at 10 in the side jatnb of a window frame. (See Figure 9.) Mounted in the end frame members 22 and 24 of the left-hand unit frame is a shaft 308 adapted to be slid lengthwise.

It is threaded as at 308 (Figure 4) near one end to received threaded hand wheels 310 upon opposite sides of the frame member 22.

By adjusting the hand wheels 310, the shaft 308 can be readily moved lengthwise with relation to the left-hand unit frame for carrying with it the pocket end sawing mechanisms 'now to be described.

Refer to Figures 1, 2, 4, 6, 7, 8 and 20.

Upper and'lower frames 312and 314 are provided with arms 316 and 318 journaled on the shaft 308 as shown in Figures 1 and4. The frames312 and 314 project laterally inwardly from the shaft 308. .The frames 312 and 314 are substantially T-shaped as shown and carry the pocket end cutting tools. These frames are pivotally hung on the shaft 308.

J ournaled on the under side of the frame 312 and extending transversely of the machine is a shaft 320. J ournaled-on the upper side of the frame 314 substantially parallel with the shaft 320 is the shaft 322.

' On the inner end of each shaft 320 and 322 ,is mounted a detachable clamp 324, carrying the detachable saw-toothed cutter 326. (See Figure 20.)

' The'shafts 320 and 322 are rocked a limited distance for actuating the cutters 326 for cutting the pocket end kerfs 10 shown in Figure 9. The means for rocking the shafts will be hereinafter mentioned.

In operating the pocket end cutting units, the frames 312 and 314 are swung respectively upwardly and downwardly when the stock is being advanced to position for cuttting the pocket end kerfs and are then swung toward each other to position where the cutters 326 can operate on the stock, and are forcibly pressed toward each other duringthe cutting operation. 1 Y I It will be noted that each shaft 320-has two of the clamps 324' and cutters 326.

The cutters on the upper shaft 320 out abouthalf way through the stock, and the cutters on the lower shaft 322 cut about half way through the stock.

The end cutters 3 26 are slightly offset with I relation to each other, and those spaced from them on the respective shafts 320 and 322 are also slightly'ofiset or staggered with relation to each other to permit the end pocket piece to be readily broken out, as clearly shown in Figure 7.

The purpose ofthus oflsetting the cutters is to permit'a slight-split endwise between the two cuts so that when the serted in the amb, it can .e held in place by screws. The offset split part acts as a shoulder. This prevents the cutters from striking each other, and yet cuts the kerf' sufficiently. For raising and lowering'the upper frame 312, I provide the following means: A'powocket has been in-' erful coil spring 328 is secured to the upper part of the left-hand track 158 and to the frame 312 (Figure 7) for normally, yieldingtion.

sition,I provide the following, mechanism 1y holding the frame 312 in its raised posi- On the top of the frame 312 is a raised lug 330 (Figures 1 and 7 Normally resting on the raised lug 330 and extending transversely across the frame312 is a rod 332. Pivoted to the ends of the rod 332 are downwardly hanging links 334. The lower ends of thelinks 334 are pivoted to short links 336, which are pivotally mounted in turn on the frame member 26 at 338. The links 336 carry between their ends a cam roller 340.

cam 342 on the shaft 100. (Figure 4.) Rotation of the shaft with the. cam 342 thereon draws the frame 312 downwardly against the tension of the spring 328 at the proper (See Figures 7 and 4.) The cam roller 340 coacts with the 1 ally mounted on the frame member 26. The

arm 346 carries a cam roller 348, which coopcrates with a cam 350' on the shaft 100. Q

The frame 314 drops by gravity and is raised at the proper time in the-operation of the machine by the cam 350. 1

For rendering the pocket end cutting means inoperative the operator simply depresses the frame 312 aga'instthe tension of the spring 328 and lifts the rod 332 off the upwardly projecting lug 330 (See Figure 7),

whereupon the downward movement of the links 334 and rod 332 willnot be suflicient to lower the frame 312 far enough for the cutters 326 mounted thereon to reach the stock.

Similarly the frame 312 is raised and the lower end of the link 344, which sets in the end kerfs 10.

small pocket 352 in the lever 346 is swung out to the dotted line position shown in Figure 7, whereupon the raising of the link 346 will not raise the frame 314.

For oscillating the shafts 320 and 322 the following means are provided:

Clalnped on the shafts 320 and 322 at their outer ends are forwardly projecting brackets 354 and 356. These carry at their forward cnds two-part sockets 358.

Referring to Figures 4 and 7, it will be ob served that on the shaft 46 is an eccentric disc 360 on which travels a band 362 having the socket 364. Screwed into the socket 364 is a rod 366. The rod 366 at its upper end is screwed into a socket 368 from which a yoke 37 0 rojects upwardly. A pin 372 is mounted in tlie upper ends of the yoke 370. On the pin 372 is a sleeve 374, from which there project upwardly and downwardly respectively the arms 376, having at their endsballs, as

shown at 378 in dotted lines in Figure 7, re-

ceived in the ball sockets 358 shown in Figure 4 and Figure 7.

The rotation of the shaft 46 reciprocates the rod 366 and the yoke 370 up and down. Figure 7). This reciprocation rocks the arms 354 and 356 (Figure 4) and imparts oscillating motion to the shafts 320 and 322 for thus rocking the cutting tools 326, (Figures 1. 2, 8 and 20), for cutting the pocket (Figures 2 and 9.)

The rod 366' is connected with the respective sockets 364 and 368 (Figure 7) by right and left-hand screw threads so that by adjusting the rod 366 some slight variation in the oscillation of the shafts 320 and 322 may be secured.

Arranged transversely opposite the pocket end cutting unit in the machine and on the right-end unit frame is the countersink router unit.

Countersz'nk router unit This unit is used for making the two countersinks 10 in the side jamb shown in Figure 9. These countersinks receive the plates on which the rope pulleys are mounted. 4

\Vithin the outline of the countersinks 10 are the holes 10 cut by the through router unit hereinafter referred to, which latter holes are to receive the pulleys and the ropes.

The countersink router unit is supported on a bracket 380 having at its upper end the horizontal laterally extending portion 382. The bracket 380 is mounted on the frame 26 in gibways 194 similar to those already described, and has a pin 198 projecting through a slot in the frame member 26* as above described in connection with the bracket 196 The bracket 380 has a bell crank lever 274, similar to the one already described, carrying a cam roller 384 similar to the cam roller 286*. The cam roller 384 coacts with a cam 386 on the shaft 100*. (Figure 7.)

(See

tion 382 in the same manner as the saddle 222 is mounted on the bracket portion 220 shown in Figure 2, omitting the set screws 228 for sliding movement transversely in the machine.

On the saddle 388 is a bracket 390. Supported on the bracket 390 is a motor 392 (Figure 7) having the usual shaft 394. Supported on the bracket 390 below the motor 392 is a gear casing 396. .The gear casing 396 has cylindrical walls on which are mounted for slidable adjustment the bearings 398 and 400.

The gear casing 396 has horizontally elongated slots 402 receiving screw bolts 40 4 screwed into the respective bearings 398 and 400 for providing for this adjustment. (Figure 18.)

J ournaled in the bearings 398 and 400 are short upright shafts 406 and 408 on which are pinions 410 and 412, meshing with the pinion 414 on the motor shaft 394. I

The shafts 406 and 408 carry the router bits 416. (Figures 7 and 18.)

By adjusting the bearings 398. and 400 circumferentially of the casing 396, the distance between the shafts 406 and 408 can be varied for regulating the distance apart of the countersink routings 10 in the side jamb shown in Figure 9. The gears will remain in proper mesh.

For regulating the height at which the bracket 380 normally stands, I provide the following means:

This means is best illustrated in Figure 8 in connection with the showing of the adjustment of the brackets of the tenoning units. Since the parts are the same, except as hereinafter noted, one description will serve for both the router units and the tenoning units. I

For cooperating with the pin 198 there is pivoted on the frame 26 in the case of the routing unit a lever or arm 418, which carries a plate or bar 420, in which is a curved guide way 422, illustrated by dotted lines in Figure 8.

The pin 198 projecting from the bracket 380 extends into the guide way 422. By rocking the arm 418 and the guide way 422, the pin 198 on the bracket 380 may be raised or lowered by a movement, which is positive,

for both upward anddownward movements.

Pivoted to the upper end of the arm 418 is an internally threaded sleeve 424, into which is threaded a rod 426.

The various rods or shafts 426 are similar to the rod or shaft 208 and are similarly mounted on the frame members 26 or 26 as the case may be.

The plate 420 with its guide device 422 is employed in the case of the tenoning units because 'of the fact that these machines must be positively moved to the position desired. Forthe routers,it is suflicient to let them move by gravity in one direction, and the upper flange on the guide devices for the routers is therefore omitted.

For reciprocating the router unit now being considered laterally in the machine, a short shaft 428 is journaled on the bracket 390, as

shown in Figure 1.

A sleeve 430 is mounted on the shaft and is provided with a socket 432 which receives the threaded end of a rod or link 434.

The other end of the rod 434 is screwed into a socket 436, shown inFigure 1 and also in I The arm 438 has pivoted to'it a socket 442 into which is threaded a rod 444. The rod 444 is threaded at its other end into a socket 446 on a band 448 mounted on an eccentric disc which is fixed on a shaft 452- suitably journaled on the right-hand unit frame. This shaft 452 is operated from the shaft 46 in the following manner:

Referring to Figures 1 and 6, it will be noted that the shaft 46 carries a beveled gear 454 meshing with a larger beveled gear 456 on the shaft 452. By the mec hanism just described, the router bits 416 travel back and forth continuously'for cutting progressively into the stock, as the bits are lowered. The 85 length of stroke given to this oscillation of the router bits determines the length of the routing cuts and an adjustment can be provided if desired to change the length of stroke for different styles of sash weight pulleys. 1

On the right-hand unit frame is another router unit, the motor being indicated at 392. This router unit is constructed and mounted in exactl the same way as the one already described except only that the router bits are smaller in diameter for cutting a narrower slot, and the vertical throw of the second router is adjusted so as to cut a slot entirely through the stock.

This latter router is the through router and cuts the slots 10 shown in the side amb in Figure 9. j

No further description of the through router will be made, because of its similarity to the countersink routing unit.

Tenom'ng units are supported on brackets 462 quite similar in structure to the bracket 196 already described (see Figure 3) and similarly mounted in gibways 464 similar to the gibway 194.

The means for vertically adjusting the brackets 462 have already been described and are illustrated in Figure 8. They consist of the rocking arm 418 carrying the plates 420 with the curved guides 422 receivin the IDS 198 similar tothose already described. he r'ocking guide ways are actuated from the threaded shafts or rods 426.

The brackets 462 are provided with guide ways 466 similar to other guide ways already described to receive the bases 468 of the motors 460 and 458.

Lateral adjustment in the machine is provided by means of threaded members 238 similar to those already described.

The motors 458 and 460 are adjusted to the proper height by means of the rocking arms 418 and connected parts,'and they are adjusted laterally in the machine by means of the threaded rods 238.

The upper motor 458 has a shaft 47 6 to receive a tenoning saw47 2 for cutting the tenon groove in the upper side of the stock 14, as shown in Figure 14, and at 14 in Figure 13.

The motor 460 has a similar shaft 478 to receive a tenoning saw 480 for cutting the tenoning groove in the lower face of the stock. (See Figure 15.) The tenoning units operate on the stock during the advanclng movement thereof through the machine.

The stock stops between the two tenoning units having the motors 458 and 460 during the through routing operation by the second routing unit already described, and also for the pocket ripping operation.

Pocket side ripping emit This unit is mounted on the left-hand unit frame. It is shown in Figures 1, 3, 6, 7 and 8.

The motor of this unit is indicated at 482 and 1ts general location with relation to the other units may be seen in Figure l.

The motor 482 is mounted for an up-anddown movement and for a horizontal, lateral movement in the machine.

The motor 482 carries on its shaft, three saws 484, which are spaced apart the proper dlstance for cutting the kerfs 1O (Figure 9). Suitably mounted on the frame member 26 1s a shaft 486, which is arranged fore-andaft of the machine and is mounted for rocking movement. Projecting laterally from the shaft 486 is a strong link 488. Arranged parallel with the link 488- and pivotally mounted on the frame 26 is an upper link 490. The links 488 and 490 are connected by a link 492 to which they are pivoted. Supported on the link 492 is a base or table 494 upon which is a saddle 496 mounted for lateral sliding movement in the manner set forth heretofore in the description of the saddle 222. That is to say nection is similar to that already described.

The manner of effecting the sliding movement will be described later.

The base of the motor 482 is mounted on the saddle 496 for adjustment in identically the same manner that the base 248 is mounted on the block 232, as shown in Figure 22.

shaft 486 and carrying a cam roller 500, which cooperates with a cam 502 on the shaft 100.

For allowing a variation in the rise of the motor 482 for stock of diiferent thicknesses,

variable saw size, or for disengagement, a

sleeve 504 is pivoted to the link 492. Screwedv into the sleeve 504 is a shaft 506 on which isa a hand wheel 508.

An arm 510 projects from the same bell crank as the cam arm 498 and is engaged by the shaft or rod 506.

For imparting lateral, sliding movement to the saddle 496 on the base 494, there is pivoted I to the saddle 496 a sleeve 512 in'which slides a rod 514 on which are the adjustable clamp collars 516 spaced apart as shown in Figure 3. The rod 514 is pivoted to an arm 518 fixed on the shaft 100, so that the rotation of the shaft 100 reciprocates the rod 514 for causing the collars 516 to engage the sleeve 512 for sliding the motor 482.

In the practical operation of this unit, the stock is moved to position above the saws 484. The cam 502 then actuates the arm 498 for raising the motor and causing the saws to en age the stock.

wo of the saws engage the stock for cutting the kerfs 10. These may be the two rear saws or the two forward saws, depending on whether the side jamb operated on is a right or a left. 7

I use three. saws, because the pocket is not in the middle of the side jamb from side to side.

Gaping units In Figures 1, 3, 4, 5 and 17 are illustrated the coping units, which include the motors 520 and 520 mounted respectively on the left and right-hand unit frames.

I will describe only the left-hand coping unit since their construction is the same.

The bracket 522 is mounted on the lefthand unit frame for lateral, sliding movement in the machine. The bracket 522 slides on a base 524 supported on the frame member 24, as shown in Figure 4. The motor 520 is in upright position and its base 526 is slidably mounted on the bracket 522 and is given some adjustment by means of a rod 528, shown in Fi res 1, 4 and 7. The rod 528 has a hand wliiael 530 on its up er end. The

rod is non-slidably but rotatab y mounted in I the sliding eona bracket 532, and has a screw-threaded con-' nection with the base 526 of the motor 520. (See Figures 1 and 7.)

There is thus provided sufficient vertical adjustment of the motor 520 to take care of different thicknesses of stock. The motor 520 carries the cutter 534, shown for instance in Figures 3 and 17, for cutting the groove 16 in the edge of the stock as shown in Figure 17. V For ralsing and lowerlng the motor 482,.- there is provided an arm 498 fixed to the 'For reciprocating the motor laterally in the'machine, there is pivoted to the bracket 522 a socket 538 shown in Figure? Screwed into the socket 538 is a threaded rod, 540, the

outer end of which is pivoted to a lever 542,

which is extended downward-1y, and is pivoted' at its lower end on a shaft544. Fixed to the shaft 544 areal- ms 546 and 548 carrying cam rollers 550 and 552. The-rollers 550 and 552 coact withv cams 554-and 556 on the shaft 100.-

. v The rig'ht hand coping unit'is the same and .the parts ared'escribed by the corresponding numeralswith-the addition of the letter a. Y -.Inthe*ope ration .of the coping units, the cam .554i'actuates the parts to move the motor 520 to'the-leftou't of the path of the advancin stock. The stoek'is-advanced to opersmug position the stock advancing mechanism, whereuponthe Cain 556actuates the proper parts for moving the motor. 520 to the right for sawing the groove'in the stock as shown in Figure 17. See also Figure 16, which illustrates the grooves out by the cOping units.

Pocket kick-out um't There is also provided a pocket kick-out unit on the machine.

It will be remembered that the upper and lower saws 236 of the pocket end cutting units are slightly staggered as illustrated for instance in Figures 6 and 7. This leaves some of the material in the ends of the pockets, which is not cut through.

In order to kick out the pocket and finish the separation thereof from the stock, the kick-out unit is provided.

After the pocket ripping units have operated (see Figure 1), the stock is advanced to the last position shown in Figure 1,'where it is operated on by the pocket kick-out unit.

Referring to Figure 3, it will be seen that the link 488 has pivoted to it an upwardly extendingkick-out arm 558, which extends between guide pins 560 on an arm 562.

When the link 488 is swung upwardly, the arm 558 is carried with it and strikes the under side of the pocket piece of the member 10" (see Figures 1, 3 and 9) for breaking it out. From the last position of the stock mentioned, it is discharged from the machine.

I shall now outline somewhat in detail the operation of the machine.

Operate-an I shall describe the operation of the machine first in making a side jamb. The righthand unit frame is adjusted laterally 1n the machine to accommodate the stock to be operated upon. This is done by operating the motor 36 shown in Figure 1, which rotates the shaft 32. The shaft 32 (Figures 1 and 7) being threaded in the nut 34 on the movable right-hand unit frame carries that frame with it for a proper adjustment.

The hopper is then adjusted for the width of the stock by loosening the hand wheel nuts 84, 84 (Figures 2, 4 and 21) and adjusting the bars 76, 7 6 for thus adjusting the upright hopper wall members 74, 74. I

The hand wheel nuts 84, 84 are then tightened and the stock is placed in the hop- )er. I For convenience, I have referred to the various positions taken by the stock in its movement throu h the machine as A, B, C, D and f V. (Figure 1.)

Position A is like the position of the stock in the hopper. From position A, the stock is moved to position B for the end cutting operation. In each instance, the lowermost piece of stock is moved from the hopper. This operation is accomplished as follows:

The driving shaft 46 is actuated from a pulley 54, belt 60, pulley 56 and motor 52. (Figure 1.) The worms 96, 96 actuate the worm wheels 98, 98 and the shafts 100, 100. (Figure 6.) I

Referring now to Figure 2, the beveled gears 106, 106* actuate the beveled gears 112, 112* or 114, 114 depending upon the positions of the clutches, thereby rotating the shafts 110, 110. (Figures 1 and 2.)

Rotation of the shafts 110 and 110 carries with them the arms 138, 138 for reciprocating the arms 130 and 130".

The reciprocation of the arms 130, 130 operates the rods 144, 144 and connected parts for reciprocating the slide bars 88, 88, which carry the pawls 90, 90.

The forward pawls 90, 90 engage the low-' ermost piece of stock in the hopper and advance it from position A to position B. (See Figures 1 and 8.) q

Assuming that the cut-off unit motors 250 and 296 have been properly adjusted and have had the proper saws mounted'thereon for cutting square ends fromthe side jamb stock, the

next operation isthe lowering of the motors 250 and'296. These motors are carried by the brackets 196, 196, which have the bell cranks 274,274? supporting the roller 286,

286*, which coact with the sams 288, 288. The

"parts being properly synchronized, the'rotatio'n ofthe shaft and the cams 288, 288

I will loiver'the' motors 250 and296 for cutting square or beveled ends on the side jamb stock. The stock then ready for movement to position C where it is operated on by the, pocketend cutting unit and the countersink routing unit.

The motors 250 add 296 are raised, and the first piece of stock is advanced to position C, s

while the second piece of stock is being advanced to position'B. v

When the stock reaches position 0 (Figure 1') the frame members 312 and 314, shown in Figure 7, are respectivelv lowered and raised.

The frame 312 is lowered a ainst the tension of the spring 328 by means 0 the links 334,-the roller 340 and the cam 342. (Figures 4 and 7.)

The frame 314 is raised by means of the link 344, link 346 and cam 350 (Figure 7).

The saws 326 are reciprocated by the reciprocation of the shafts 320 and 322. Referring to Figures 4 and 7, it will be observed that the eccentric 360 on' the shaft 46 repicrocates the shaft 366 and the arms 354 and 356 for rocking the shafts 320 and 322.

At the same time, the first or countersinking shaft'or rod 444,- the bell crank 438 and the rod 434.

As soon as the pocket end cutting operation is completed, the'cam 342 raises the roller 340 and the links 334, thus permitting the spring 328 to raise the frame 312.

Atthe same time, the cam 350 rotates toa position permitting the frame 314 to drop. At the sametime, the cam 386 rotates to pcgiaon to raise the bracket 380 and the motor Stock is then ready to be advanced towards position D.

Ordinarily the saws of the tenoning unit motors 458 and 460 do not operate. on the side jamb shown in Figure 9 and now-being considered.

When the stock moves to position D shown in Figure 1, the motor 482 of the pocket ripping unit is raised.

Referring to Figure 3, this raising movement is accomplished by the operation of the cam 502 through the roller 500 on the arm 498, the shaft 486, the arm 488 andthe link 492. When the motor 482 has been raised, it is moved laterally in' the machine for completing the pocket side ripping operation by means of the rod 514 and the arm 518 on the ing that the-bits on the motor 392 are of smaller diameter, and the lateral movement of the unit is shorter than that of the first router unit for cutting the through slots 10.

The through router unit is raised, and the stock is then moved to position E. The coping, units do not operate on the side jamb shown in Figure 9 and now being considered.

In position E, the pocket kick-out unit, illustrated in Figure 3, breaks out the pocket.

Whenthe pocket side ripping unit is raised for cutting the sides of the pocket of one piece of stock in position D, the kick-out arm 558 is raised for breaking out the pocket of the stock in position E.

Assume that a head jamb member, such as is shown in Figure 11 isto be'operated upon by the machine. Stock is first moved to the end cutting units, vand the ends are cut for giving the head jamb members 12 the exact length and for cutting the grooves 12*. (See Figures 11 and 12.) The ends are trimmed and the grooves are cut by the same operation, simply by providing the motors 250 and 296 with the proper cutting instruments 564 and 566. (Figure 12.)

Where a side casing, such as that shown in Figure 13 is to be operated upon, the stock is put in the hopper and advanced through the machine in the manner already described. One end is cut square off by the saw-carried by the motor 296. The motor 250 is adjusted to make the relish cut 14 v No further operations are performed on the machine until the stock is advanced past the tenoning units having the motors 458 and 460.

The upper tenoning unit is provided with a cutter of the kind shown in Figure 14, which trims oi? the end of the stock and also cuts the upper tenon groove.

The saw 460 carries the cutting tool 480 by which the lower tenon groove is formed.

Where a head casing, such as that shown in Figure 16 is to be operated upon, the ends are trimmed as they pass the motors 250 and 296, and the grooves 16 are cut by the saws carried by the motors 520 and 520*.

It will, of course, be understood that operations, other than those here specifically explained, may be performed by this machine.

When the motor 296 is tilted as shown for instance in Figure 6, the right-hand end of the stock may be beveled from top to bottom.

The motor 250 may be swung to the angle shownin Figure 1 for beveling the stock and from side to side.

It will be observed from the foregoing that I have provided a machine by which the operations on any particular piece of stock are automatically performed, as the stock is advanced automatically through the machine.

The machine is built for rapid and economical operations in general.

It is economical of space, because it is a double-end machine and stations B, C, D and E perform operations on both ends of the stock.

In the case-of a side jamb, stock is o erated on at both ends at stations B, C and la;

The end cut-ofl units having the motors 250 and. 296 may be readily rendered inoperative by moving the motors 250 and 296 laterally, so that their saws will be out of the path of-the advancing stock, or by raising the brackets 196 by means of the rods 208 until the cams 288 and 288 are inoperative.

The pocket end cutting units can be rendered inoperative in the manner already described.

The router units can be rendered inoperative by raising the brackets 380 and 380 by means of the appropriate rods 208 until the cams 386 and 386 are inoperative.

The tenoning units having the motors 458 and 460 may be rendered inoperative by moving the saws. This, of course, is true of all the sawing units.

Similarly, they may be made inoperative by moving the motors 458 and 460 far enough to the right, so that their saws may be out of the path of the advancing stock or by raising and lowering the motors.

The pocket side ripping unit may be rendered inoperative by adjustment of the hand wheel 508 (Figure and this will automatically render the pocket kick-out device inoperative.

Thecoping units may be rendered inoperative by simply raising the motors 520 and 520 or by taking out the upper pivot pins of the levers 542 and 542.

The-machine is capable of a large variety of adjustments and uses in addition to those hereinabove more particularly explained, many of which; will be obvious from the foregoingv description of the construction and operation of the parts.

Changes may be made in the construction and arrangement, shape and sizes of the parts, without departing from the real spirit I and purpose of my invention, and it is my intention to cover by my claims, any modified forms of structure or use of mechanical equivalents, which may be reasonably included within their scope.

I claim as my invention:

1. In a. machine of the class described, means for advancing stock through the machine in successive steps, routing units for operating on the stock at different steps in its advancement, means for automatically, vertically, oscillating said units and for automatically moving the units lengthwise of the stock for forming countersink and through mortises in successive steps.

2. In a machine of the class described, means for advancing stock through the machine by successive steps, pocket end cutter

Images