US2087897A

US2087897A - Woodworking machine

Info

Publication number: US2087897A
Application number: US41196A
Authority: US
Inventors: Ivan H Bradley
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-09-19
Filing date: 1935-09-19
Publication date: 1937-07-27
Anticipated expiration: 1954-07-27

Description

July 27, 1937. l '1. H. BRADLEY 2,087,897 ,7 WOODWORKING MACHINE 7 Filed Sept. 19, 1935 5 Sheets-Sheet l INVENTOR E j IVAN H. BRADLEY ATTORNEY July 27, 1937. ,l. H. BRADLEY 9 WOODWORKING MACHINE Filed Sept. 19, 1935 5 Sheets-Sheet 2' INVENTOR.

- [VAN H. BRADLEY 53 ATTORNEY July 27, 1937. v I. H. BRADLEY I .WOODWORKING MACHINE Filed Sept. 19, 1935' 5 Sheets-Sheet s IN V EN TOR."

l. H. BRADLEY WOODWORKING MACHINE Filed Sept. 19, 1935 July 27, 1937.

5 Sheets-Sheet; 4

INVENTOR. IVAN H. BRADLEY July 27, 1937.

|. H. BRADLEVY WOODWORKINGMACHINE Filed Sept. 19, 1935 5 Sheets-Shet 5 INVENTOR IVA/v H. BRiQOLEY.

Patented July 27, 1937 iJNiT-E STATS cities 1 2'2 Claims.

This invention relates to new and useful improvements in woodworln'ng machines and relates particularly to an automatic wood turning machine.- g

An object of the invention is to provide an automatic wood turning machine capable of rapidly turning out a large number of pieces.

'Another object of the invention is to provide a machine having the characteristic stated and including a variety of adjustments whereby the machine is capable of turning pieces of widely differing sizes and configurations.

Other objects and advantages will become apparent from a consideration of the following dc:-

tailed description taken in connection with the accompanying drawings wherein a satisfactory embodiment of the invention is shown. How- =..ev-er, it will be understood that the invention is not limited to the details disclosed but includes all such variations and modifications as fall within the spirit of the invention and the scope'of the appended claims.

In the drawings:

" Fig. l is a side elevational view of the improved machine, certain parts being omitted for the bet-- ter showing of other parts; i

Fig. 2 is a View looking into the power or head end of the machine, gear casings and the like being broken away;

Fig. 3 is a View similar to Fig. 2 but taken looking into the opposite end of the machine;

Fig. 4 is a plan view of the machine, parts be- .ing broken away in order that details of construction may be shown;

Fig. 5 is an elevational view of a chute together with its supporting parts;

Fig. 6 is a detail sectional view showing the mounting of a pair of cam posts and also showing the cams and a pair of work holding'chucks;

Fig. 7 is a detail elevational view showing the mounting of the head and tail stocks at oneside of the machine;

.Fig. 8 is a detail sectional view takensubstan tially along the line 3+8 of Fig. 7;

Fig. 9 is a top plan View of anadjustable member on which the head and tail stocks of the machine are mounted;

Fig. 10 is a top plan view of one of therchutes of the machine;

Fig. 11 is a side elevational View of a clutch em- E2. 7 therealong are beveled gears A l and 35 each pro- 50 vided with a collar it? into which extends a yoke central supporting member H which at its upper end includes a table portion l2 mounting spaced brackets is and i i. Each bracket comp-rises a base portion secured to. the table i2 bybolts 15 and further includes a. bearing portion is which 5. bearing portions mount a central shaft ll carrying a rotary cutter generally designated W, the construction of which varies depending on the work to be performed. From this it will be understood that the particular construction of 10 the cutter forms no part of the present application.

At the head end of the machine the upright ii is provided with outwardly and upwardly extending webs is supporting a portion 2i! in the .15 nature of an extension of the table l2 and secured to such extension is a frame or casting 2i on the upper side of which is mounted an electric motor Within the frame 2! thereis arranged a bracket member 23 held in place bytzo bolts E i and carrying a bearing 25 through which the shaft'ii extends. The shaft 22a of motor carries a multiple pulley 2% over which are trained belts 227 also trained about a corresponding pulley 22 on the shaft H, such pulley 2% being arranged on said shaft between the brackets i3 and 23.

On the shaft ii outwardly of the bearing 25 there is arranged a sprocket 29 (see Fig. 2) over which is trained a chain 39 also trained abflllt go a relatively large sprocket wheel 3! on a'shaft 32 carrying a worm 33. Such shaft 32 is mounted in bearings 36 carried by a bracket 35 which lat ter includes a base portion 36, mounted on the machine base NJ, and a pair of spaced 'upright arms 3? carryingthe bearing portions 34 (Figs.

.1 andZ). Mounted on the bracket base portion 36 are a pair of spaced bearing

members

38 and 39 secured in place as by bolts iii and each in-

Bearing members

38 and 39 rotatably mount a shaft 42 and secured on such shaft between the adjacent portions of said bearing members is a worm wheel is meshing with the worm 33 on the 45 shaft 32. qIt will, thus, be seen that the motor 22in addition to driving the cutter shaft I? also operates to'drive the transversely extending shaft Keyed to shaft 32 for sliding movement member til. Said yoke members are secured to "a rod it slidable through the guide lugs ii previously mentioned and to this rod is secured a collar ML Secured on base 55 by bolts 58 is an arm or bracket M to which the lower end of a hand lever 52 is pivotally attached as at 53. A link M has one end pivotally anchored to thelever 52 intermediate the ends of the latter at 55 and the other end of said link is pivotally connected with the collar as as at 56. With this construction it will be apparent that as the lever 52 is swung in one direction or the other about its pivot 5'5 the rod 58 will have a sliding movement imparted to it in the direction of its length and such movement will, through the yokes ll, be imparted to the collars it and thus to the bevelled gears i l and s iding them in one direction or the other along the shaft 52.

On the portions of the base it! at each side of the upright ii there are formed enlargements or lugs al Two of these lugs are at each side of the upright l l and they are arranged in spaced relation as shown best in Fig. l and on the upper side of each lug a bearing member 53 is secured as by bolts 59. Supported by such bearing members at the respective sides of the upright H are shafts till and 5t and each shaft at the head end of the machine carries a beveled gear 62 and in the rear of such

gear sprocket wheels

63 and 64. Motion is transmitted to the shafts 60 and 6! from the motor 22 when the bevelled gears 44 and are shifted along the shaft '32 into mesh with the bevelled gears 52.

Mounted on the respective shafts (ill and GI for pivotal movement with respect thereto are similar frames and each substantially in the form of an inverted U, and including a front leg 6'2, a rear leg and an upper connecting portion or bar In addition to the

frames

65 and 65 being duplicates of one another the mechanisms on or associated with the respective frames are duplicates of one another so that substantially identical structures are provided at each side of the upright ll of the machine base. Secured to the front legs 5'] as by bolts iii are brackets H each having three step-like portions l2, l3 and Hi provided respectively with holes or recesses 15, it and 7?.

Also mounted by each front leg 87 is a short eccentric stud or shaft '58 on which intermediate its ends is pivotaily mounted a bracket comprising a pair of spaced arms '59 at their inner ends carrying a pin mounting a gear 8| located between the arms. A hand piece 82 is pivotally connected at with the outer ends of the arms 19 and said arms in addition to being rockable about the shaft it are also shiftable along said shaft. Each hand piece 82 at Btu, pivotally mounts a pawl member 84 including a pin 85 adapted to be engaged in a selected one of the openings l5, and H of its associated bracket H. A small coil spring 36 arranged between the outer end of the pawl 8 and the lever 82 normally tends to rock the pawl in a direction to carry its pin 85 into a selected one of said openings of bracket ll.

On each shaft i8 is a gear 8i arranged between the arms l9 and meshing with the gear at. Secured on each shaft '78 is a relatively large sprocket wheel Bil over which and the sprocket wheel 6-".- there is trained an endless chain 89 whereby as the shafts 60 and iii are being driven the sprocket wheels 88 and the gears 81 of the respective frames t5 and 66 are driven and it will be understood that gears 87 meshing with gears 85 the latter will be driven. About each shaft 78 is an eccentric sleeve tlil mounting sprocket wheel 88 and adapted to be adjusted so as to adjust said sprocketwheels 38 relative to the sprocket 7 wheels fi l and thus keep the drive chains 83 under the proper tension.

Extending through and mounted for rotary movement by the legs El and E3 of each frame is a shaft 9i which at its front end mounts large, intermediate and

small gears

92, 93 and 94 all rigid with the shaft enclosed by a gear casing 95 cut away at its lower inner side as shown in the right hand portion of Fig. 2 whereby a portion of each of said gears is exposed so that a gear 35 may be brought into mesh with the desired one of said gears Elf, $3 or St as will later more fully appear. Each gear housing s5 is carried by a bracket-like portion Elli (see Fig. l) secured to the forward leg of of the frame as by bolts 9?.

The rate of rotation of the shaft 95 depends on which of the

gears

52, 93 or 95, the gear 8! is meshing with. By means of the mechanism above described the gear ill may be brought into meshwithany one of the gears 92, or at. This is suggested particularly by Fig. 2 wherein at the right hand side of the figure the gear 85 is shown as meshing with the gear 92 while the gear M at the left side of the machine is shown as meshing with the gear t l.

To effect the change in speed the pawl member fi lis depressed against the action of its spring 85 and then the hand piece $2 is rocked to shift the arms l'fi about the shaft 18 so as to carry the gear 5 into a free position. Next, the hand member is shifted laterally so as to move the gears 3i and d? and bracket arms l9 laterally into a position opposite or beyond the edge of the gear with which gear Si is to be meshed. Then on the hand piece being rocked back the gears will be meshed and the pawl 8 is released so as to have its pin 85 enter one of the openings T5, N5 or ll to lock the parts in their adjusted positions.

It will be understood that when the pin 85 of a pawl member 8d is in the opening the gear 8i controlled by the hand piece mounting such pawl will be in mesh with the large gear 92 on the shaft Ell. When that same pawl pin is in the opening it the mentioned gear 39 will be meshing with the gear 93 of shaft ti and when the pawl pin is in the opening ll the mentioned gear 85 will be in mesh with the gear 8% on the shaft .ll. From the above it will be seen that mechanism is provided whereby the shaft 9i may be driven at one of three speeds depending on the manual shifting of the hand piece t2 to change the position of the gear ill.

Fixed to each shaft 95 between the legs 57 and $8 is a sleeve 98 carrying a cam 32 the purpose of which will later be fully described. On each shaft ill at the outer of the frame leg 68 is a bucket cam lfltl compri og an inner cam member liil fixed to the shaft and an outer hollow cam member Hi2 secured to the member lOl as by screws let; and including side wall portions I9 3 spaced from the edges of the cam member I! M as shown best in Fig. 3. It is noted that the portion of the member till about the shaft 9i projects out of the hollow cam member led and that such projecting portion of the cam member loll has a cutaway or relieved. portion 195, the purpose of which will later fully appear. Obviously, as a shaft M is rotated its cam we will be carried with the shaft.

Fixed to the outer or tail end of the frame upright it as by means of bolts is a cross bar lll'l, the ends of which extend beyond the sides upper'bar H5 and depending lug portions'iic or pin I32 carried by and projecting upwardly from the connecting bar 69 of the frame member mounting said bar.

of the upright H for a purpose to be described. -Also, fixed to the same portionv of the. machine as by screws 18 is'a short bar its and it will be noted in Fig. 3 that the bar: m9 is spaced below the intermediate portion of the barlti i' and that into said space is inserted-the free or inner endportions of brackets lit each at its outer end carrying a roller .5. Such bracketsare each secured in place by a boltfl i2 and each bracket is provided with a slot H3 through which its securing bolt extends whereby the brackets may be adjusted in directions to bring their rollers Ml closerto or further-fromone another.

Normally'the bolts 5 l2 are tight so-that the rollers] H mayturn about their mounting studs but-may notbe shifted laterally with respect to the upright portion ii of the machine base.

The cams it!!! cooperate with the rollers i I I in such manner that the frames 65 and 6E and the parts carried thereby are in alternate order swung inwardly and outwardlymoving about the In Fig. 7

shaftsfiii and iii as pivots or fulcrums. 3 the frame 65 is shown as in an inner position whi'l e'the frame 66 is in an outer position, certain mechanism on the frame 65 in Fig. 3 being positioned-to present work to the rotary cutter -l8 while the frame this in position for its work spindles to receive a piece to be later presented to the cutter. v

Disposed on the upper side of the connecting bar 69 of each of the frames t5 and 66 is a member or sub-table M l shown particularly in Figs. 7, 8 and 9. This member comprises an and Ill engaging on the upper surface of the Subby a nut 12c and passes'through andhas either aneat or tight fit in an opening in the connecti'ngbar BQbut -passes through an elongated slot [2! in the baril5.

' With such an arrangement it will be apparent that on loosening of the nut I the sub-table H4 'rnay be adjusted longitudinally to properly position it with respect to the connectingbar '69. Further, in its upper surface and extending "for its entire length bar H5 is provided'with a groove I22 the purpose of which will later'be set forth and adjacent one end is provided with a pair'of slots I23 while adjacent its other e'nd is provided with similarly spaced slots i241.

Mounted on the bar M5 arethe head and tail stocks 925 and lfit respectively of the machine 'and the head stock in its under side is provided with a rib l2! (see Fig. 2) entering the groove I22 in the upper side of bar M5 and the head stock is'securedin place by bolts E28 passing through the slots H23 of said bar. It will be apparent that on loosening of the bolts i223 the head stock may with the limits of the slots i223 be adjusted longitudinally of the bar. Similarly the tail stock IE6 is provided with'arib ii fsee 'Fig. 3) entering the groove in the upper side of the bar 'I I5 and bolts iiil passing through the slots 124 secure the tail stock tothe bar. On loosening of these bolts the tail stock may be adjusted longitudinally of the bar.

Toward its outer end eachbar H5 is provided with an opening 13! into which extends-a stud Threaded openings i33 lead from opposite edges-of the bari M5 into said opening tel and setscrews i3 1 threaded through said openings engage opposite sides of the stud i552 so as to lockthe sub-table lid and parts carried thereby against turning movement about the bolt lli8 and relative tothe connectingbar 1 =Obviously, on slacking off on one of the set screws its and tightening of the other set screw the'sub-table li i will be adjusted about the bolt H8 soas to swing the head stock inwardly and the tailstock outwardly. or vice versadepending on the manner in which the screws are adjusted so that a piece of work held between the head and tail stock spindles will be presented to the rotary cutter at an angle whereby more material willbe cut from one end portion of the piece than from the other end portion there- 'of. This adjustment is, of course, used only in cases where the work is to be out or have more material removed at one end than at the other.

It will be understood that there is a head stock and tail stock carried by each of the frames 65 and lit. The head stock includes a base portion 835 into which the securing screws in enter and a bearing portion 53%? through which extends a hollow shaft or spindle til at its forward end carrying a chuck i538 to engage the work as will later be described. Also included with each head stock is a gear casing ifila through which the shaft it? extends as'shown in Fi 1.

Each tail stock includes a base portion 539 carrying a pair of spaced front and rear uprights Hid which at their upper ends carry bearing portions i li and ME. A gear casing also forms part of the tail stock. and extending through such gear casing and through the bearings ME and M2 is a shaft or work spindle'l sd which at its forward or inner end carries a toothed chuck work. Such chuck includes a shank iiiha entering the hollow work spindle i s-i.

A shaft i iii extends through the base portions of both the head and tail stocks and 645 for engagement with the through the gear casings 538a and i 33 andat c the inner side of the gear casing i380; an automatic clutch Ml is mounted on said shaft. Con nected to drive said clutch is a sprocket wheel 448. Trained over such sprocket wheel and the sprocket wheel 63 on the shaft @5 at one side of the machine and the shaft 6i at the other fsideof the machine is an endless chain i 39 whereby the shaft M6 at each side of the machine is driven. Within each gear casing 'ifliia lei on the shaft or work spindle l3? of the head stock and within each gear casing 6523 a gear M2 on the shaft 8% meshes with a gear i-53 on the shaft or work spindle i it of the tail stock.

from the shaft M6 and therefore any back-lash in the gears will be in the same direction for all the parts and both the head and tail stock work spindleswill be driven with the same constant motion.

At each side of the machine there is arranged a work feeding chute and while such chutes are r of identical construction and in detail will be described in the singular they are generally desig- =nated'l5 i and lfifirespectively. For the mount- 'a gear lfili on the shaft M6 meshes with a gear *With this arrangement the shafts of both the head and tail stocks'are each driven-directly ing of the chute a pair of arms I56 extend laterally from each side of the vertical portion II of the machine base and such arms I56 are by means of bolts I5? secured to mounting lugs I53 which are preferably cast with the machine base. At its outer end each arm is provided with a head-like portion ltd having vertically extending groove or depression therethrough and vertically disposed legs Ibil have their lower end portions secured to said heads I58.

Legs I are secured to the head portions of the arms I56 by bolts it! passing through vertically extending slots Hi2 of the legs and it will therefore be apparent that on loosening of the bolts Itl the legs Iti! may be adjusted vertically. Since the legs are partially received and have a neat fit in grooves in the head portions H9 of the arms l56 it will be apparent that the legs have no lateral movement. At their upper ends the legs I59 are secured to angle brackets I63 by means of bolts 65% and it is noted that the lower edge portion Itfi of each of said brackets is arcuate or curved, the center of its radius being the center of its securing bolt Iiii.

Secured to the upper side or" the top wall or angle portion of the pair of angle brackets It? at each side of the machine is a mounting plate I65 and it is noted that such plate spans the pair of angle brackets and is secured to them by flat headed machine screws Nil-a. Arranged in spaced relation and disposed on the upper side of the plate Itt are a pair of angle members I68 each including a base portion Itil arranged against the upper side of the plate and having a depending rib I'lil entering a groove Ill in the upper side of the plate and through the base portions I89 of the angle members bolts It? extend and secure the members I68 in place. In its base portion each of the members N58 is provided with a slot Ill? through which its bolt i6! extends whereby on loosening of the bolts Iii'I the members I68 may within the limits of the slots Ill? be adjusted toward or from one another.

Each of the angle members i658 clamps in place and has secured to it a chute side plate I13, each such plate including an extension I'M of reduced height and passing under a lip-like portion I15 at the upper edge of the vertical portion of one of the members I65. The arrangement is such that the lips I'ib engage over the upper edges of the extensions lid of chute side plates and on tightening of the bolts I 6? to secure the members I58 of the plate the said extensions of the chute side plates are clamped against the plate I66. The side plates of the chutes are additionally secured in place by means of bolts llfi passing through slots Ill in the extensions I'M and through or into the vertical portions of the members I68 whereby the extensions of the side plates are clamped laterally against the vertical portions of said members IE8.

Disposed at the inner ide of one chute side plate I73 is a pair of vertically extending angle bars I78 and H9 while at the inner side of the other side plate of the same chute there is arranged a pair of vertically extendin angle bars Hit and ltI. As shown, the machine is set up and adjusted for the automatic turning of paint brush handles although it is to be understood that the machine is not limited to use for that particular purpose but is capable of a wide variety of uses depending on the making of various adjustments and on the type and construction of cutter and cams used all as will later more fully appear. Before being presented to the machine the work or blanks are roughly shaped and in the drawings the work or blanks to be turned are designated I82 and each blank includes a headlike portion I83 and a handle or grip portion I84. (See Fig. 10.)

The vertical angle bar I78 is secured in place by bolts I65 passing through vertically extending slots I86 in a chute side plate IE2 while the vertical angle member Iii} is secured in place by bolts I81 passing through horizontal slots I88 in the same chute side plate. Obviously, the angle bar H9 may be adjusted toward the angle bar I18 and in the present case such adjustment is made so as to have the inwardly directed flanges of such bars spaced apart a distance equal to the. length of the head portion I83 01" one of the blanks I82. This is as clearly shown at the left hand side of the machine in Fig. i and also in Fig. 10.

The angle bar I8I is secured in place by bolts I8i extending through vertical slots lilil in the other side plate of the chute while the angle bar I88 is secured in place by bolts Mil passing through horizontal slots: M2 in the said other side plate of the chute. Obviously, on loosening of the bolts iIlI the bar Itil may be adjusted toward the bar I8I and as here shown this adjustment is made so as to have the inwardly directed flanges of said bars spaced apart adistance equal to the width of the outer or free end portion of the shank or handle I84 of the blank I82.

In addition to the bars H9 and I M being adjustable toward the bars I78 and i353 the side plates I'Ifi of the chutes are also adjustable horizontally inwardly and outwardly with respect tothe cutter shaft ll. This last is accomplished by loosening of the bolts I'Iii after which the side plates. H3 may be shifted inwardly and outwardly 1 within the limits of the slots ill. The chute side plates are also adjustable toward and from one another since on loosening of the bolts It the angle members Hi8 may be shifted toward and from one another within the limits of the slots I12. These slots provide for fine adjustments oi the members I68 and for coarser or longer adjustments the bolts It? are removed and then the members IE8 are shifted and the bolts inserted through other holes or openings in the plate Hill. In this connection it will be particularly noted in Figs. 4 and 5 that such plate adjacent its ends is provided with series of openings I93 into which the bolts It? may be selectively inserted.

A pair of finger-like members Hi l are arranged to close the lower end of each chute and before the machine is started each chute is loaded with the pieces I32. Such pieces are arranged with their head portions I83 between the inwardly directed flanges oi the angle bars I18 and H9 and with the ends of their shank portions I8 3 between the inwardly directed flanges of the angle bars I89 and Iti. The lowermost piece I82 rests on the members I 9 which are spaced apart as best shown in Fig. 1. It will be understood that the various parts have been adjusted so that the side plates N3 of the chutes are properly related and spaced as are the various angle bars carried by such side plates.

The angle bars F9 and IEiI are so adjusted vertically that their lower ends stop at a point just .above the lowermost blank or piece I82'as shown at I95 in Fig. 3, but the angle bars I78 and I80 have their inwardly directed flanges extending down substantially to the upper surface of the members I9 as shown at WIS. The angle bars together with the members I96 serve to properly locate the pieces H52, so that the latter:

will be automatically removed one at a time as will later appear. I

Means are provided for assisting in accurately locating the lowermost piece l82'in the chute and, of course, one such means is associatedwith each chute. The mentioned means includes'a bracket 39?, one arm of which is secured against theother side of a chute plate il't by the lowermost of the bolts 589 while the other arm is se-' cured to the inwardly extending flange of the angle bar ifii as by a bolt or screw E38. It will, therefore, be clear that the bracket I9! is vertically, adjustable with the'angle bar iBi. Such bracket iil'i includes .a bearing portion I93 through which extends a shaft 2% to the outer portion of which there is attached a finger 25. To the lower end of this fingerone end of a coil spring Zil-i is anchored while the other end of such spring is anchored to a pin 2% rigid with a side plate H3.

A finger 285 is carried by the inner portion of the shaft 296] and the spring 2% normally acts to maintain the lower inwardly curved portion 266 of said finger against the lowermost of said pieces I182. The end portion 2% of the finger 295 engages an edge of the'lowerrnost piece i (42 intermediate the'ends thereof and forces such piece laterally or attempts to force the piece laterally so as to insure said piece bearing against the inwardly directed flanges of the angle bars 118 and I8 3. As the spring so acts it will be apparent thatthe lowermost piece in the chute has a definite position from which it may be taken as will be described.

Since the chute structure disclosed provides for the adjustments described it will be understood .that His adapted to support and feed various 4 piece E82.

shapes of pieces, it simply being necessary that proper adjustments be made. It may be adjusted to receive pieces of greater or lesser length than those shown or pieces where the widths at the ends are different from those shown or are the same'at both ends. 7 Further, by adjusting the side plates inwardly or outwardly the bottom piece in a stack will always occupy the same position with respect to the other parts of the machine and by adjusting only one of the legs ltd up or down the plates I66 will be arrangedrat an incline so as to properly sup- 3 port pieces which are thickeratone end than The tapered shank 2M of'the chuck N8 is received in the hollow shaft or work spindle I31 of the head stock in the usual manner and on said shaft in the rear of the chuck there is arranged a cam 2&3 the purpose of which will later appear. In the present disclosure the chuck iiifiis elongated and includes upper and lower flanges or flange-like portions Zlliispaced apart so as to receive the head portion iil3 of a Between the flanges 2 99 the chuck is provided with a projection or tit Zitto dig into the piece to be turned. Since each head stock is adjustable along the bar N5 of its mounting member lid it will be'clear that the chucks its at opposite sides of the machine may be aligned even though their tapered shanks 2%! are of different lengths cr do not enter their respective hollowwork spindles to the same extent;

This is also true with respect to the tail stocks and their chucks Hi5.

The tail stock shaft or work spindle l M is. longiv tudinally shiftable and secured to it is a collar 2!] having a groove receiving a ring 2! to which a yoke 2 i3 is secured as by pins 2 M. Yoke H3 is rigid with, but off-set from, an mm 215 which is pivoted at me. At its lower end arm 295 is bifurcated providing portions 28" and M8 to the former of which a roller i is secured by a bolt 22%. A coil spring 22l has one end anchored to a pin 222 on the bifurcated portion fit and the other end of said spring is. con,- nected at 223 with the lower end of a stationary arm 224 secured to the tail stock as by bolts or screws 225.

The spring 22E constantly tends to rock the arm 295 about the pivot fit so as to shift the work spindle I44 and the chuck E45 toward the work. or toward the left in Fig. 1. As seenin that figure the roller is at the top of the cam 99 so that the spring is elongated and the spindle M4 and the chuck M5 are in retracted positions. It will be recalled that shaft 9i is a driven shaft and from this it will be seen that as the shaft continues to turn cam 99 will be carried away from the roller 2E9 and the spring 22f will then' I 82 .and shifts it longitudinally to carry one of its end portions into the chuck i538 and to par, tially imbed the teeth of chuck M5 in the piece.

As shaft 9! revolves the bucket cam mil engages with the roller ill and rocks frame 65 about shaft 65 as a fulcrum so as to move the work spindles of the head and tail stocks of said frame inwardly of the machine to bring a piece'of work held by said spindles into engagement with the rotary cutter i8. At the same time the other bucket cam is cooperating with its roller ill to rock the frame 66 in the opposite direction so as to position the spindles of its head and tail stock in their outermost position and in alignment with the respective ends of a piece to be taken from a chute as shown in Fig. 3. Bucket cams operate constantly to shift the

frames

65 and 66 alternately with respect to one another so that while the spindles of one frame are presenting a piece of work to the cutter the spindles of the other frame are taking a piece of work from a chute.

A bar 226 similar to the bar ml extends transversely of the machine at the head end thereof and these bars have their outer end portions bent so that the end portions of one bar extend toward the end portions of the other and each end portion of each bar carries a set screw 22'! adapted to be adjusted more or less through. the bar. These set screws are positioned to be engaged by the respective arms of the

frames

65 and 65 when such frames are in their outermost positions and size of the piece to be turned. The rollers lll which cooperate with bucket cams are mounted on adjustable pieces iiil as previously explained.

Each of the clutches Ml includes a body portion 228 (see Fig. 12) carrying an annular hub 22$ receiving the spindle is? of the head stock. At its outer edge the clutch body 228 is provided with an annular flange 238 about which is sprung a heavy ring 23l split as at (see Fig. 12). A cover 233 fits over the body and the split ring and is secured in place as by a bolt 23% and pivotally mounts the transversely circular reduced portion 235 of a transversely square or rectangular key 236. The key 236 extends into the space between the ends of the ring 235 and to the outer end or on the outer portion of the extension 235 of said key a small lever 23? is secured, one end portion of said lever extending between stops 233 while the other end portion thereof is curved as at 23-9 and extends beyond the body of the clutch.

Owing to the action of the ring 212i the hub of the clutch is clamped to the work spindle is? so as to turn the same as the clutch is turned by the sprocket Hi3 and the arrangement is such that on the lever 239 being rocked or being held against movement while the clutch body moves the key 235 is rocked and a pair of its corners engaging the ends of the split ring 238 the latter is expanded permitting the hub portion of the clutch to also expand and release its grip on the work spindle ltl. When this occurs the clutch simply turns on the spindle beins driven by the motion transmitted through the sprocket while the spindle itself remains stationary. This clutch comes into play during the time the work spindles are taking a piece from a chute.

An angle bracket 2M2 secured to the bar as by bolts 2M is positioned to be engaged by the lever 255i of the clutch of the frame 55 at the proper time. The plate 2% is engaged by the convex or outer side of the clutch lever 22% as said lever moves downwardly as best shown in Fig. 2. The lever 237i of the clutch of the mechanism of the frame 66 at the proper time wipes against the under side of a plate 242 forming part of an angle member secured to an arm as by bolts 2%. The bolts 2M pass through slots in the angle member 2&2 while the bolts iii pass through slots in the member this arrangement being provided for adjustments whereby to have the clutch levers engage the plates at the proper time and remain in engagement with them for the proper length of time. The engaged portion of the bracket or angle member is located above this clutch so that the lever of clutch of the mechanism of the frame iii?- engages and wipes against the under side of the horizontal portion of said member.

A bracket 2% is secured against the upper side of the table l2 as by bolts 2% and such bracket includes a vertical portion to which a cross bar as? is secured as by bolts 248 passing through slots 2% in the cross bar. Uprights are secured to the cross bar and each at its upper end carries an insert or wear piece 255 formed of hard wear resisting metal. The cams tilt are adapted to work against these wear plates 25f so as to properly position the work with respect to the cutter while a final or finishing out is being made.

In the operation,assuming that the proper cams are in place and that all necessary adjustments have been made to have the machine operate on a particular piece, as for example, the piece M2 of the drawings, both chutes are loaded with such pieces and the motor 22 started. This causes the cutter ill to be rotated and the shafts 9i and M6 to be driven. The bucket cams we move with 1e shafts ill to carry the

respective frames

65 and 66 inwardly and outwardly alternately with respect to one another and while one frame is in presenting a piece of work to the cutter is the other is out in position to have its work spindles receive a piece of work as in the case of the frame in Figs. 1 and 2 and the frame 65 in Figs. 2, 3 and 4.

As before stated the mechanism of the various frames operate in the same manner and when the frame 65 is in its outer position the lever of its clutch is hearing on the plate 2% so that its shaft i i-*6 is not being driven and the chuck M53 is stationary and positioned as in Fig. 1. As the cam lid leaves the roller 2H9 the spring 2M acts to drive the chuck M against the work and cause the latter to partly enter the chuck its. Shortly thereafter the'clutch lever moves off the plate 2% so that the split ring 236 of the clutch returns to normal position due to the key 235 returning to a position s uare between the ends of the ring. When this occurs the clutch is again gripping the shaft use so that as the clutch is driven by the sprocket M8 the shaft is driven and transmits motion to the work spindles of the head and tail stocks of frame 65.

Before the clutch again grips the shaft M6 the bucket cam of frame 55 has engaged with its roller to rock the frame inwardly and a new piece of work being then held by the work spindles of said frame is carried inwardly with the frame being withdrawn from the chute through the inner side thereof. This takes place against the action of spring 283 and results in the finger 295 being forced outwardly by rocking of the shaft 2%. Immediately the piece is removed another piece drops into its place and the spring 293 rocks the shaft 2% back to normal position causing the finger 285 to engage the new piece and force it against the inwardly extending flanges of the angle bars H3 and wt of the chute.

l/Vhen the piece is removed from the chute the clutch again grips the shaft MS as above explained so as to rotate the work spindles and the piece held by them so that said piece is rotating at high speed by the time the frame 65 is rocked inwardly a distance to bring the work against the rotary cutter. The bucket cam only moves the frame inwardly so as to tilt it sufficiently to have it fall or gravitate toward the rotary cutter and does not positively feed it in the entire distance. After some material has been removed from the piece the cam 28% comes against the wear plate 252 and rides against it as the cam rotates with the spindle of the head stock. The cam only comes into play after most of the material to be removed has been cut away and the cam controls the finishing cut during which but a small amount of material is removed giving the turned article a smoothed surface. A substantially completely turned article is shown at 255 in Fig. 4:.

During the time the mechanism of frame 65 has been removing a piece from a chute the mechanism of frame 5% has been presenting a piece to the rotary cutter. After the frame 65 moves inwardly the bucket cam of frame 56 cooperating with its roller starts such frame 56 outwardly. During such outward movement of a frame cam es acts on the lever 2i5 of said frame to withdraw its tail stock spindle and thus release the completed piece permitting it to fall from between the work or head and tail stock spindles. If desired, any suitable chute means may be provided for carrying the completed pieces into a receptacle. 7

While as above suggested, the inward-swinging movement of a frame is not forced by the bucket cam beyond a point where the frame tends to gravitate inwardly it will be understood that the continued inward movement iscontrolled by the cam portion ldi so that the frame does not simply fallinwardly, jamming the Work against the cutter. out does not engage with the wear plate until after the cam portion llll ceases to bear on its roller 5 i l. The cam to the left in Fig. 3 is about to reach this point and when the relieved portion its of a cam comes opposite its roller iii, the cam will not be in engagement with its roller but the cam 296 may move against its wear plate 25i at this time controlling the last or finishing cut on the Work.

. pieces to be removed one at a time from the lower end thereof. The mechanisms of the respective sides of the machine'present the work to the cutter preferably alternately in such timedrelation thatthe cutter is making a roughing out on one piece while making a finishing cut on the otherand is kept busy substantially continuously with the finishing cuts. The tail stock spindle is drawn outwardly by the camlifi rocking the lever 2i5'as a frame is rocked outwardly'after a piece has been finished and thereby permits the piece to drop from between the work s indles and in addition locates the tail stock work spindle to be again driven forwardly to drive the next piece of work against the head stock work spindle.

With respect to the drive and the gearing disclosed it will be clear thatif gear 8| is out of mesh with all of the gears 92, Stand 94 atone side of the machine the frame. at that side of the machine will not be rocked by its bucket cam and will b-e'out of operation. Therefore, ifdesired; but one side of the'machine may be placed in operation. are presented to the cutter also depends on whether the gear 3! is meshing with gear92, 93 or 95. Attention is also directed to the fact that since the gears 8i at the respective sides of the machine are independently shiftable the timed relation between'the respective sides of the machine maybe adiusted to suit. That is, wh'enone side of the machine is operating the gear 8lat the'other side thereof may beshifted'as desired to have the two; sides of the machine work together or to have thorn present work to the cutter alternately or in the desired'overlapping relation;

Having thus set forth the natureof my invention,'what I claim is: I

-1. In a woodworking machine, a rotary cutter, a pivotally 'mounted frame at each side of said cuttenwork spindles on said frames, continuously rotating cam means for moving said frames to have said work spindles present work to the cutter, each of said work spindles including a pair comprising a head and a tail stock spindle, spring means on said frames normally tending to move one spindle of a pair toward the other to grip a piece of work for presentation to the cutter, and continuously rotating cam means on said frames for moving said spindle against the action of the spring to release the work.

The camfiiiii controlling the finishing The speed with which pieces of work 2. In a Woodworking machine, fa'rotary cutter, a supply chute at each side of the cutter, work spindles at eachside of the cutter, means for rotating said spindles, means for moving said "spindles from the respective chutes toward the cutter to present work thereto and when the work iszfinished immediately move the spindles back toward the chutes, means causing the spindles to release the work as the spindles move back toward the chutes, means causing cessation of rotation of said spindles while they are atthe chutes, and means operating said spindles to have them pick up a piece of work While they meat the chutes.

3. In a. woodworking machine including a cutter and work spindles at each side of the: cutter, a chute at each side of the cutter, means for moving said spindles to the respective chutes to take Work therefrom. and to move the spindles toward. the cutter to present the work thereto and when the work is finished immediately move the spindles back toward the chutes; means caus-' ing the spindles to-release the work as the spindles move back toward the chutes, means drivingsaid spindles and including a clutch adapted to release on reaching a predetermined position to stop driving of and have the spindles come into rcquired positions at the chutes duringeach cycle of the machines operation.

4. In a woodworking machine including a cutter and work spindles at each side of the cutter,

a chute at each side of the cutter, means for moving said spindles to the respective chute-s to take work therefrom and to move the spindles toward the cutter to present the work thereto and when the work is finished immediately move the spindles back toward the chutes, means. causing the spindles to release the work as the spindles move back toward the chutes means driving said spindles'and including a clutch adapted to release on reaching a predetermined position to stop driving of and have the spindles come into required positionsat the chutes during each cycle of the machines operation, means to be engaged by said clutch to cause it to release, and means adjustably mounting the last means on the machine.

5. In a woodworking machine, a cutter, a pair of framesarranged one at each side of the cutter and mounted for movementtoward and from the same, work spindles on each of said frames, at

supply chute at each side or" the cutter and from which the respective spindles are adapted to receive work, means for moving said work spindles supply chute at each side of the cutter and from which the respective spindles are adapted to receive work, means for moving said work spindiesv from positions receiving work from said chutes to positions presenting the work to the cutter and when the work is finished immediately move the spindlesback toward the: chutes, means causing the spindles to; release the work as the spindles move back toward the chutes, cam means controlling the movements of said frames, and adjustable means controlling the distance the frames are moved by said cam means. 7

'7. In a woodworking machine, a cutter, a pair of frames arranged one at each side of the cutter and mounted for movement toward and f om the same, work spindles on each of said frames, a supply chute each side of the cutter and from which the respective spindles are adapted to receive work, means for moving said work spindles from positions receiving work from said chute to positions presenting the work to the cutter, cam means controlling movement of'said frames during the l ghening out of the cutter on the work, adapted to release the frames following said roughening cut, and profile cams on said spindles and controlling the finishing cuts on, the work.

8, In a woodworking machine, a cutter, a work spindle, a supply chute, means operating said work spindle to have it take the lowermost piece of work in the chute and present it to the cutter, a rockable shaft, an arm movable by said.- shaft, and a spring normally tending to rock said shaft to bring said arm against the lowermost piece of work in the chute to hold it in a definite fixed position and to permit the arm tobe moved as the piece of work is removed from the chute and to then cause the arm to strike the next piece of work moving into the lowermost position to force it into a definite fixed position.

9. In a, woodworking machine, a cutter, a frame at each side of the cutter, a sub-table on each frame and extending along the cutter shaft, a head and a tail stock on each sub-table and each head and tail stock adapted to support a piece of work for presentation to the cutter, means to move said frames to have work presented to the cutter by the respective head and tail stocks, pivotal bearing means mounting one of said subtables on its frame, and means for adjusting said sub-table about its pivotal means to move one of its stocks toward and the other from the cutter for the turning of a piece having a large and a. small end.

10. In a woodworking machine, a cutter, a pair of frames arranged one at each side of the cutter and mounted for movement toward and from the same, rotary work spindles on each of said frames, a supply chute at each side of the cutter and from which the respective work spindles are adapted to take work, cam means for moving said work spindles from positions taking work from said chutes to positions presenting the work to the cutter and controlling the positions of the work at the cutter, and means for discontinuing the operation of one of said frames at will.

11. In a woodwor ring machine, a cutter, a pair of frames arranged one at each side of the cutter and mounted for movement toward and from the same, work spindles on each of said frames, a supply chute at each side of the cutter and from which the respective spindles are adapted'to receive work, means for moving said work spindles from positions receiving work from said chutes to positions presenting the work to the cutter, change speed gearing individual to each of said frames and controlling the rate of operation of said frames, and said change speed gearing including a. gear shiftable into a neutral position to discontinue operation of one of said frames.

12. In a woodworking machine, a horizontal rotary shaft, a cutter on said shaft, horizontal work spindles at each side of said shaft, means for moving said spindlestoward the cutter, an electric motor driving the cutter shaft, a shaft parallel with said cutter shaft and driven therefrom, a shaft transversely of the second shaft, a worm and worm gear drive between the last mentioned shafts, a drive from said transverse shaft to said spindles, a drive from said transverse shaft to said means for alternately moving the spindles toward the cutter.

13. In a woodworking machine, a. base, a stationary upright on said base, a pair of frames pivotally mounted one at each side of the upright for swinging movement toward and from the same, cutter means on the upright, a subtable on each frame and extending longitudinally of the cutter means, a head and a. tail stock on each sub-table and each head and tail stock adapted to support a piece of work for presentation to the cutter means, means for swinging the frames toward and from the upright to have work presented to the cutter means by the respective head and tail stocks, a pivotal bearing mounting one of said sub-tables on its frame, and means for adjusting said sub-table abou its pivotal bearing to move one of its stocks toward and the other from the cutter means for the turning of a piece having a large and a small end.

14. In a woodworking machine, a. cutter means, a pair of frames arranged one at each ide of the cutter means and mounted for movement toward and from the same, work spindles on each of said frames, means for moving said frames to have said spindles present work to the cutter means fir, t for a roughening cut and then for a finishing cut, and means controlling movement of said frames whereby the work carried by the spindles of the respective frames is presented to the cutter means in such order that the finishing cut is being made on the work presented by one frame while the roughening cut is being made on the work presented by the other frame.

15. In a woodworking machine, cutter means, Work spindles at each side of the cutter means, means for moving said spindles to and from positions presenting Work to the cutter means, cam means controlling movement of said spin.- dles during the roughening cut of the cutter means on the work and adapted to release the spindles following said roughening cut, and profile cam means controlling the finishing cuts on the work.

16. In a Woodworking machine, cutter means, a pair of frames, means pivotally mounting said frames one at each side of the cutter means for movement toward and from the same, work spindles on each frame, means for rocking the frames about their pivots to carry the spindles to and from positions presenting work to the cutter means, cam means controlling movement of the frames during the roughening cut of the cutter means on the work and adapted to release the frames following said rcughening cut, and profile cams controlling the. finishing cuts on the work.

1'7. In a woodworking machine, a rotary cutter, a pivotally mounted frame at each side of the cutter, work spindles on said frames, a shaft on each of said frames, means driving said shafts, cam means on the shafts and controlling movements of the frames to have said work spindles present work to the cutter, each of said work spindles including a pair comprising a head and a tail stock spindle, a lever on each of said frames and each lever connected with a spindle of the pair on its frame, cams on said shafts and operable to shift said levers and the connected spindlesto release a piece of work, and spring means on the frames to actuate said levers in the opposite directions to cause the spindles to supply chute, a spindle operable to present work from said chute to said cutter, said chute-including a work support, independent legs connected with and mountingsaid support, means whereby one-of saidlegs isindependently vertically adjustable to tip said support and maintain it in positionwith one-of its ends higher than the other, a pair of side plates supported by said legs and adjustable horizontally toward and from one another and toward and from the cutter, and vertically extending guide bars on the opposing faces of said side plates and adjustably mounted for taking care of different widths of pieces to be presented to the cutter.

19. In a woodworking machine, a cutter, a supply chute, a spindle operable to present work from said chute to said cutter, said chute including a work support, independent legs connected with and mounting said support, and means whereby one of said legs is independently vertically adjustable to tip said support and maintain it in position with one of its ends higher than the other.

20. In a woodworking machine, a cutter, a supply chute, a spindle operable to present work from said chute to said cutter, said chute in.- cluding a work support, a pair of legs each including a pair of sections connected by a horizontal pivot, means connecting a section of one leg with an end portion of said support, means connecting a section of the other leg with the other end portion of said support, means whereby one of said legs is independently vertically adjustable to tip said support and maintain it in position with one of its ends higher than the other, said horizontal pivots effective to permit of said adjustment, a pair of side plates supported by said legs and adjustable horizontally toward and from one another and toward and from the cutter, and vertically extending guide bars on the opposing faces of said side plates and adjustably mounted for taking care of different widths of pieces to be presented to the cutter.

21. In a woodworking machine, a base, a stationary upright on said base, a pair of frames 1 pivotally mounted on said base one at each side of said upright for swinging movement toward and from the same, a horizontal shaft on said upright at the upper side-thereof, a cutter on said shaft, means for rotating said shaft and. thereby the cutter, horizontal work carrying spindles on the upper portions of said frames opposite said cutter, rollers on the upright, bucket cams on the frames and cooperating with said rollers for swinging the frames toward and from the upright to have said spindles present work to the respective sides of the cutter and controlling the positions of the work during initial cutting thereof, and means rotating said spindles while they are presenting work to the cutter.

22. In a woodworking, machine, a horizontal shaft, a cutter on said shaft, means for rotating the shaft and thus the cutter, a supply chute at each side of said cutter, a frame at each side of the cutter, means pivotally mounting said frames, horizontal work spindles on each of said frames, means for rotating said spindles, cam means for rocking said frames to carry the spindles from the respective chutes toward the cutter to have the spindles present work to the cutter and controllingjmovements of said frames while the spindles are presenting work to the cutter and for carrying the spindles to the chutes,

means causing cessation of rotation. of the.

spindles while they are at the chutes, and means operating. said spindles to have them. release. a

wfinished piece of work after they have moved from the cutter andto pick up a piece of work from the chutes while they are at the chutes.

. 23. Ina woodworking .machine, a'horizontal shaft, a cutter on said shaft, means for rotating the shaft and. thus thecutter, a supply chute at each side of the cutter, a frame at each side of the cutter, means pivotally mounting said frames, horizontal work spindles on each of said frames, means for rotating said spindles, cam means for rocking said frames to carry the spindles from the respective chutes toward the cutter to have the spindles present work to the cutter and controlling movements of said frames while the spindles are presenting work to the cutter and for carrying the spindles to the chutes. said means for rotating the spindles including a clutch carried by the frame and adapted to release on the frame reaching a predetermined position to stop driving of and have the spindles come into required positions at the chutes during each cycle of the machines operation, and means operating said spindles to have them release a finished piece of work after they have moved from the cutter and to pick up a piece of work from the chutes while they are at the chutes.

24. In a woodworking machine, a horizontal I shaft, a cutter on said shaft, means for rotating the shaft and thus the cutter, a supply chute at each side of the cutter, a frame at each side of the cutter, means pivotally mounting said frames, horizontal work spindles on each of said frames, means for rotating said spindles, cam means for rocking said frames to carry the spindles from the respective chutes toward the cutter to have the spindles present work to the cutter and controlling movements of said frames while the spindles are presenting Work to the cutter and for carrying the spindles to the chutes, said means for rotating the spindles including a clutch carried by the frame and adapted to release on the frame reaching a predetermined position to stop driving of and have the spindles come into required positions at the chutes during each cycle of the machines operation, means to be engaged by said clutch to cause it to release, means adjustably mounting the last means on the machine, and means operating said spindles to have them release a finished piece of work after they have moved from the cutter and to pick up a piece of work from the chutes while they are at the chutes.

25. In a woodworking machine, a horizontal shaft, a cutter on said shaft, means for rotating the shaft and thus the cutter, a supply chute at each side of said cutter, a frame at each side of the cutter, means pivotally mounting said frames, horizontal work spindles on each of said frames, means for rotating said spindles, means for rocking said frames to move said spindles from positions receiving work from said chutes to positions presenting the work to the respective sides of the cutter, cams controlling movements of the frames toward and from the cutter and while the spindles are presenting Work to the cutter, and adjustable means controlling the dis- 7 tances the frames are moved by said camv means.

cam means for rocking said frames about their respective pivotal mountings to carry the spindles into and out of positions presenting work to the respective sides of the cutter and controlling movements of said frames while the spindles are presenting work to the cutter.

27. In a woodworking machine, a cutter, a

work spindle, a supply chute including a back, means operating said work spindle to have it take the lowermost piece of work from the chute through the front side thereof and present it to the cutter, an arm, a spring connected with said. arm, means whereby as the lowermost piece is removed from the chute the spring is loaded, and said spring then operable to cause saidarm to strike the next piece of work moving into the lowermost position in the chute and force such-2' piece into position against the back of the chute.

IVAN H. BRADLEY.