US2063899A - Duplex shaper - Google Patents

Description

A. J. WELLS DUPLEX SHAFER Filed April 16, 1934 7 SheetS-Sheet l inlay Dec; 15, 1936. A WELLS 2,063,899

DUPLEX S HAPER Filed April 16, 1934 7 sheets-sheet 2 Dec. 15, 1936. A. J. WELLS 2,063,899

DUPLEX SHAPER Filed April 16, 1934 sheets-sheetl 3 A. J. WELLS DUPLEX SHAPER Dec. 15, 1936.

Filed April 16, 1954 '7 Sheets-Sheet 4 -nu l;

Dec. 15, 1936. A. .1. WELLS DUPLEX SHAPER Filed April 16, 1934 7 Sheets-Sheet 5 g wx.

Dec. 15, 1936. A J WELLS 2,o6,s99

DUPLEX SHAPER Filed April 16, 1934 '7 Sheets-Sheet 6 Dec. 15, 1936.

A. J. WELLS 2,063,899

DUPLEX SHAPER Filed April 16,1954 7 sheets-sheet 'r Patented Dec. 15, 1936 UNTD STATES PATENT GFFIQE 15 Claims.

My invention relates generally to metal cutting machinery and more particularly to a duplex Shaper and the principal object of my invention is, to provide a shaper having a ram and operating parts therefor that may be quickly and conveniently shifted so as to operate in either a horizontal or vertical plane as desired in order that the one machine may be utilized for both vertical and horizontal cutting and shaping operations.

Further objects of my invention are, to provide va duplex Shaper wherein the bed plate that carries the bed and ram is hinged to 'the cross slide so that said bed plate and the ram carried thereby may be conveniently swung from horizontal to vertical positions and vice versa, to provide relatively simple and convenient braces between the cross slide and the bed plate for firmly holding the same in vertical position or at any angle between horizontal and several degrees past Vertical in order that the Shaper may be conveniently employed in operations incident to the production of dies, taper keys, key ways and the like.

Further objects of my invention are, to provide simple and eiiicient means for controlling the movements of the ram, to provide an improved form of clutch and reverse mechanism for operating the ram, to provide spring cushioning means for absorbing the shocks and vibration developed in the ram driving mechanism and further, to provide simple and eiiicient means for counterbalancing the weight of the ram while the same is operating in a vertical position.

A further object of my invention is, to provide a duplex shaper that is directly driven by an electric motor, which motor is suitably mounted on the hinged bed plate and to provide simple and efficient driving connections between the motor and the main driving shaft of the Shaper.

Further objects or" my invention are, to provide improved means for effecting vertical adjustment; of the table of the shaper and to provide a relatively simple and efficient vise for engaging and holding the work upon the table.

With the foregoing and other objects in view, my invention consists in certain novel features of construction and arrangements of parts that will be hereinafter more fully described and claimed and illustrated in the accompanying drawings in which:

Fig. l is a side elevational view of my improved duplex Shaper and showing the bed plate and ram in horizontal positions.

Fig. 2 is a vertical cross section taken on the line 2--2 of Fig. 1.

(Cl. E- 38) Fig. 2A is a vertical cross section taken on the line 2li-2A of Fig. 1.

Fig. 3 is a top plan view of the shaper.

Fig. 4 is a top plan view of the vise that is mounted on the work table. `5

Fig. 5 is a Vertical longitudinal section taken on the line 5-5 of Fig. 4.

Fig. 6 is a cross section taken on the line 6 6 of Fig. 5.

Fig. 6A is an elevational view of a clamping block that is mounted for sliding movement on the liXed jaw of the device and which carries the movable jaw.

Fig. 6B is a rear elevational view of the clamping block seen in Fig. 6A.

Fig. 7 is a side elevational view of the shaper with the bed plate, bed and ram moved into verti cal position.

Fig. 7A is a cross section on the line 'lA- 7A of Fig. 7.

Fig. 8 is a rear elevational view taken looking in the direction indicated by the arrow 8 in Fig. '7.

Fig. 9 is an enlarged elevational view with parts broken away and in section looking in the direction indicated by the arrow 3 in Fig. 7.

Fig. 10 is a cross section taken on the line lil-lil of Fig. 9.

Fig. 1l is a cross section taken 0n the line H-Il of Fig. 10.

Fig. 12 is a cross section taken on the line 12-12 of Fig. 11.

Fig. 13 is an elevational view looking in the direction indicated by the arrow I3 in Fig. 11.

Fig. 14 is a cross section taken on the line lll-lil of Fig, 1l.

Fig. 15 is a cross Section taken on the line l-l of Fig. 13.

Fig. 16 is a cross section taken on the line iii-I6 of Fig. 11.

Fig. 17 is a cross section taken on the line ll--l'l of Fig. 9.

Fig. 18 is an elevational view partly in section taken on the line l8--l8 of Fig. 9.

Fig. 19 is a sectional view similar to Fig. 11 and showing the driving connections between the motor shaft and the main driving shaft of the Shaper.

Figs. 20 and 21 are perspective views of the cooperating parts that function on a shock absorber 50 for counteracting the shocks and vibration in the clutch that controls the reverse movements of the ram.

Fig. 22 is a vertical section taken on the line 22-22 of Fig. 7.

Fig. 23 is a vertical section taken on the line 23-23 of Fig. 7.

Fig. 24 is a vertical cross section taken on the line 24-24 of Fig. 23.

Fig. 25 is an elevational view with parts in section of the ram counterbalancing means and showing the position thereof when the ram andl bed are horizontally disposed.

Fig. 26 is a detail elevational view of a link that is located on the end of the cable forming a part of the ram counterbalancing means.

Referring by numerals to the accompanying drawings which illustrate a preferred embodiment of my invention, I designates the base of the shaper which is a substantially box-like structure preferably of cast metal and secured on top of said base in any suitable manner is a cross slide base II.

Mounted for transverse sliding movement on said cross slide base, is a cross slide I2 and connected by a suitable hinge I3 to the forward end of said cross slide, is a bed plate I4.

Adjustably mounted on the bed plate and retained in its adjusted position by means of bolts I5, is a bed I6 that serves as a support for the sliding ram.

The lower portions of the bolts I that secure the bed to the bed plate are adapted to occupy suitable notches I'I that are formed in the sides of the bed plate and which arrangement enables the bed to be conveniently adjusted lengthwise upon the bed plate and rmiy secured thereto after proper adjustment.

A nut I 8 depends from cross slide I2 and receives a transversely arranged feed screw I9 that is intermittently rotated by conventional feed screw operating means designated generally by the numeral 2U, Fig. 2.

By connecting the forward end of bed plate I4 to cross slide I2 by the hinge I3, said bed plate and parts carried thereby may be conveniently swung upward so as to occupy an inclined or vertical position and to iirmly hold the bed plate in its inclined or vertical position, a pair of braces 2| are arranged between said bed plate and cross slide, said braces being provided with coinciding longitudinally disposed slots 22 and the upper end of one of these braces is pivotally connected to a bracket 23 that projects from the underside of the bed plate I4 and the lower end of the other brace is pivotally connected to a bracket 24 that projects outwardly and downwardly from the rear end of cross slide I2 (see Fig. 7).

A pair of plates 25 are applied to the outer faces of the braces 2I, the upper and lower edges of which plates are provided with flanges 26 that project over the upper and lower edges of the braces and passing through said plates and through the slots in the braces is a bolt 21, on the threaded end of which is seated a clamping nut 28, (see Fig. 7A).

The construction just described provides means for rmly holding the bed plate and parts carried thereby in vertical or inclined position and if desired the upper edges of the braces 2| may be provided with graduated scales for the purpose of determining the angular position in which the bed plate is held.

When the bed plate occupies a horizontal position the braces 2I occupy an out-of-the-way position to the rear of the base I0 as illustrated by dotted lines in Fig. 1.

Arranged for vertical sliding movement by the ways 30 that are mounted on the front side of base IU, is a plate 29 and projecting outwardly from the lower portion of the plate, is a table 3| which carries the work holding vise.

Detachably secured to the table top and depending therefrom, is a screw 32 that passes through a nut 33, the latter being seated in the upper end of a sleeve 34 and projecting from the lower portion of said sleeve is a hand wheel 35.

The lower portion of sleeve 34 is internally threaded for engagement with the externally threaded surface of a tube 36, the lower end of the latter being rigidly seated in a base or foot 31 that projects from the lower front portion of base I0.

The construction just described and which is illustrated in Fig. 2A provides simple and eflicient means for quickly raising and lowering the vise carrying table 3|.

Screw 32 has a righthand thread and tube 36 a lefthand thread in order that when sleeve 34 is rotated a relatively quick movement will be imparted to table 3|.

The work holding vise that is mounted on table 3| comprises a disc 38 that is suitably mounted for adjustment toward and away from the base I0 and adapted to be clamped to the table in adjusted position and mounted for rotation on said disc 38, is a disc 39.

A swivel bolt passes through the centers of discs 38 and 39 and holds the disc 39 for rotation on said disc 38 and also provides means for clamping said disc 39 to disc 38 in adjusted position.

Suitably secured on top of disc 39, is a plate 4I at one end of which is formed integral an upstanding stationary jaw 42.

Formed through the center of plate 4 I, is a longitudinally disposed slot 43 and secured to the underside of said plate, to the sides of said slot, are toothed rack plates 44.

Arranged for sliding movement on top of plate 4I and opposing the fixed jaw 42, is a sliding jaw 45 and arranged on the top thereof is a bearing block 46. This bearing block is pivotally connected to jaw 45 by bolt 41 that passes downward through the slot 43 in plate 4I and engages a clamping plate 48, the ends of which latter bear against the lower ends of the teeth of the rack plates 44. This bolt 41 provides means for locking the adjustable jaw 45 to plate 43 as the adjustable jaw has engaged and clamped the work against the xed jaw.

Arranged for sliding movement on top of plate 4I to the rear of the sliding jaw 45, is a block 49, the upper portion of which is bifurcated for the reception of a nut 50, which nut is mounted for locking movement in said block by means of trunnions 5I that extend from said nut outwardly through the sides of said block.

Depending from block 49 is a web 52 that passes through slot 43 and projecting forwardly from the lower end of said web, is a plate 53.

Projecting upwardly from the forward portion of plate 53, are teeth 54 that are adapted to engage between the teeth of rack plates 44.

The lower forward corner of block 49 is beveled as indicated by 55 and the upper rear corner of plate 53 is correspondingly beveled as designated by 56 in order that block 49 may be tilted slightly while positioned on plate 43 so as to disengage the teeth 54 from the teeth of rack plate 44.

Such construction permits ready adjustment of the block 49 toward and away from the movable `jaw.

Passing horizontally through nut 5U, is a screw CII 5l, the forward rounded end of which engages in 75 a recess that is formed in the rear face of bearing block 46.

Arranged for reciprocating movement upon bed I6, is a ram 58 and carried by the forward end thereof is a conventional tool holder designated generally by the numeral 59, Figs. 1 and '7.

Ram 58 is provided with a longitudinally disposed slot 69 and arranged on the upper face of said ram on one side of this slot is a rack bar 6| having outwardly presented teeth.

Secured to the end po-rtions of the ram on the opposite side of slot 60 from rack bar 6| and spaced apart from the body of the ram, is a rack bar 62 having inwardly presented teeth.

The means for counterbalancing the ram while the same is operating in a vertical position and which is illustrated in Figs. 22 to 26 will now be described.

Secured to the rear end of bed I6 is a plate 63 and mounted for rotation on the upper face of said plate is ahousing 64 provided in its periphery with worm wheel teeth 65.

Journaled in antifriction bearings in the centers of plate 63 and housing 64, is a shaft 66 and carried by the upper end of said shaft is a drum 61.

Secured to this drum is one end of a steel cable 68 that is arranged to wind onto and from said drum and the opposite end of said cable carries a plate 89 provided in its center portion with a keyhole opening 19 and in its forward end with an aperture 1|.

When the ram is operating in a vertical position, the keyhole opening 19 in plate 69 engages a headed stud 12 that projects downwardly from the forward portion of the ram and when the latter is operating in a horizontal position, said keyhole opening engages a headed stud 13 that projects upwardly from the forward portion of bed I6.

The aperture 1| in the forward end of plate 69 is adapted toI receive the hooked end of a rod that is utilized for shifting plate 69 from stud 12 to stud 13 and vice versa.

The inner end of a spiral spring 14 is secured to shaft 66 and the outer end is secured to the drum of housing 64.

The tension of spring 14 is sufficient to counterbalance the weight of the ram while the same is operating in a vertical position and to vary the tension of said spring, the drum or housing 64 is rotated by means of a worm 15 that is formed on a shaft 16 and the latter being journaled in suitable bearings on top of plate 63. Worm 15 engages the worm wheel teeth 65 on drum 64 and shaft 16 is rotated by means of a crank handle 11 on one end of said shaft.

The means for driving the ram will now be described.

Rigidly secured by means of a bracket 18 to the side of bed I6, and on the opposite side of the Shaper from the feed screw operating mechanism 29, is an electric motor 19, the shaft of which carries a worm 89 that meshes with a worm wheel 8|. A sleeve 82 is mounted for both rotary and longitudinal movement upon a main driving shaft 83 and said sleeve slides through worm wheel 8|.

This shaft is journaled for rotation in antifriction bearings 84 that are arranged in bearing supporting blocks 85 and the latter being secured to bed I6.

The inner end of sleeve 82 carries a ange 86 and projecting from said flange, are pins 81 that are adapted to enter apertures 88 that are formed in the adjacent face of worm wheel 8|.

Worm wheel 8| is provided with a hub 89 and keyed thereto, is a pinion 99 that meshes with a pinion 9| and the latter being journaled for rotation on a stud 92 that is seated in a bracket 93.

Rigidly xed to pinion 9|, is a slightly larger pinion 94.

Keyed to the outer end of sleeve 82, is a pinion 95 that is smaller than pinion 90 and this pinion 95 is adapted to mesh with pinion 94 when sleeve 82 is moved inward upon shaft 83 so as to disengage the pins 81 from the apertures 88.

Formed integral with the outer side face of pinion 95 is a pair of diametrically opposite arcuate lugs 96 and which lugs are positioned in notches 91 that are formed in a disc 98.

The length of the notches 91 is greater than the width of the lugs 96 and seated in recesses 99 that are formed in disc 98 at one end of each recess, are expansive coil springs that bear against the adjacent faces of the lugs 96 on pinion 95.

The construction just described provides means for absorbing and counteracting the shock and vibration incident to the engagement of the clutch with the pinions that transmit motion from the driving shaft to the racks on the ram.

The end of driving shaft 83 that projects from sleeve 82 through disc 98 is made square or noncircular in cross section as designated by |0| and a corresponding square or non-circular opening |92 is formed in disc 98 for the accommodation of this portion of the shaft.

Secured to the end of the lugs 96 that project from pinion 95, is the inner end of a short handle |93, which latter is utilized for imparting sliding movement to the sleeve 82 and this handle projects through a suitable housing |94 that encloses the speed control mechanism just described.

Whe-n the handle |03 is pulled outward to its limit of movement to engage pins 81 in apertures 88 in worm wheel 8|, the motion of the motor shaft is transmitted from worm 89 to worm wheel 8|, thence to and through sleeve 82 and thence through pinion 95 and disc 98 to the main driving shaft 83, which shaft has the non-circular end 9| that passes through the corresponding opening 492 in disc 98.

Under such conditions and with the parts as illustrated in Fig. 9, the shaft 83 is being driven at relatively slow speed.

In order to drive shaft 83 at increased speed, handle |93 is pushed inward as illustrated in Figs. l0 and 1l so as to disengage pins 81 from the apertures 88 and as sleeve 8| is moved inward the teeth of pinion 95 will engage the teeth of i pinion 9d which latter is larger in diameter than pinion 95 and also larger than pinion 9| that is driven by pinion 90 that is secured to the hub of worm wheel 8|.

Under such conditions the motion from the motor shaft delivered to worm wheel 8| will be transmitted by pinion 98 to pinion 9|, thence to larger pinion 99, thence to smaller pinion 95 and from the latter through disc 98 to the shaft 83 and due to the relative sizes of the pinions the driving shaft will be rotated at relatively high speed.

Handle |93 is yieldingly retained at both ends of its sliding movement upon shaft 83 by a spring pressed pin |93a that is carried by disc 98 and which pin is adapted to enter either one of a pair of spaced indentations |93b that are formed in one of the flat faces on the end of shaft 83.

Loosely mounted on main driving shaft 83 and meshing with the teeth of rack 6|, is a pinion |05 that imparts forward travel to the ram and formed on one side of this pinion, is a clutch face |06, preferably teeth.

Loosely mounted on shaft 83 and spaced apart from pinion |05, is a` pinion |01 of larger diameter and the face of which pinion is of double width and provided with two sets of teeth |08 and |09.

The teeth |08 mesh with the teeth of rack 62 and in operation, imparts reverse motion to the ram.

Formed on the inner face of this larger pinion |01, is a clutch face ||0, preferably teeth.

Arranged for sliding movement upon shaft 83 between the ram drivingy pinions |05 and |01 and held to rotate therewith, preferably by means of a key, is a sleeve clutch provided at one end with a clutch face ||2 that is adapted to engage clutch face |06 on pinion |05 and at the opposite end the sleeve is provided with a clutch face I I3 that is adapted to engage the clutch face on pinion |01.

Formed on the intermediate portion of the sleeve III, are spaced flanges ||4.

The means for automatically shif ting the clutch to bring about reverse movement of the ram and which is illustrated in detail in Figs. 9, l0, and 1'7 will now be described.

Secured to the front face of one of the bearing supporting blocks 85 and at a point directly over the main driving shaft, is a plate ||5 and arranged for sliding movement thereupon, parallel with the axis of the driving shaft, is a plate ||6.

Seated in the sliding plate and projecting through a slot ||1 in fixed plate ||5, is a pin 8 and mounted for rotation on the rear or lower end thereof, is a roller ||9 that is positioned between the anges ||4 of clutch Fulcrumed upon a stud |20 that is seated in plate I5, is the inner end of a lever |2| that extends laterally directly across the outer face of rack 62 and beyond said rack the outer portion of this lever is bent upwardly and outwardly as designated by |22.

Formed in the intermediate portion of lever |2|, is an inclined slot |23 in which is positioned a roller |24 that is carried by pin ||8.

Fulcrumed upon stud |20 and overlying lever I 2| is a lever |25 in the central portion of which is formed an inclined slot |26 that is positioned directly over slot |23 in lever |2I.

A short arm |21 overlies lever |25 at one end of said arm overlying slot |26 and mounted for rotation on a hub that extends inwardly from said arm into the slot |26, is a roller |28.

The end of arm |21 and roller |28 are provided with a short slot |29 that is slightly inclined with respect to the axis of said arm for the accommodation of the forward or upper end of pin II8.

The edges of arm |21 that project toward the stud |20 are provided with teeth |30 and meshing therewith are the toothed ends |3| of short arms |32 and which latter are fulcrumed upon pins |33 that are seated in fixed plate I I5.

Projecting from the free ends of these arms I3 are pins |34 and connecting said last mentioned pins, is a retractile coil spring '|35.

The free end of lever |25 is substantially wider than the underlying lever |2| and projecting from level' |2|, through a short arcuate slot |36 that is formed in the wide end of lever |25, which slot is concentric with the axis |20, is a pin |31.

Adjustably mounted upon rack 62 on opposite sides of the levers |2| and |25, are blocks |38 which during the reciprocating movements of the ram alternately engage opposite edges of the Alever |25 so as to automatically operate the clutch actuating means just described.

These contact blocks |38 are retained in their adjusted positions on rack 62 by set screws |39.

To engage lever |2| and hold the same and the clutch in neutral position so as to stop the operation of the ram, a plate |40 is arranged for sliding movement on the righthand one of the bearing blocks 85 and formed in the forward end of this plate is a notch |4| of suicient width to engage the upwardly bent portion |22 of lever |2I.

An expansive spring |42, positioned in a slot in this plate, tends to move the same forwardly into engagement with lever |2| and positioned in said slot to the reai1 of said spring, is a sliding block |43, from which projects a pin |44. This pin projects through a slot |45 in a cover plate |46 that overlies sliding plate |40 and said pin also passes through an inclined slot |41 that is Vformed in a lever |48. The inner end of this lever is fulcrumed on a stud |49 that is seated in cover plate |46.

The mechanism just described provides means whereby, at any time during the backward and forward movements of the ram, the lever 2| may be engaged in neutral position to hold the clutch actuating mechanism and the clutch itself, in neutral positions, thereby controlling the starting and stopping of the ram.

With lever |48 in the position illustrated in Fig. 9, the plate |40 is at its rearward limit of movement with the lug at one side of the notch |42 bearing against the bent end of lever |2|.

By shifting lever |48 upon its fulcrum, pin |44 travels through slot |41, thereby moving block |43 forwardly to compress spring |42 and when lever |2| moves to a neutral position during its subsequent clutch shifting operation plate |40 will be moved outward under the influence of spring 42 so that the bent end of lever 22 will occupy notch |4| and thus be held in neutral position.

The means for imparting movement from main drive shaft 83 to the feed screw |9 is illustrated in Figs. '7, 8, and 11 to 16 inclusive and will now be described.

This driving mechanism includes a pinion |50 that is secured to a shaft |5|, the latter being journaled in a sleeve |52 and said sleeve in turn being jcurnaled in an eccentric |53. This eccentric is mounted in the main crank shaft bearing 85 on the righthand side of the Shaper.

Seated in the eccentric |53 and projecting outwardly through a slot |54 in bearing 85 is a short arm |55 which when shifted from one end of the slot to the other partially rotates the eccentric and moves shaft |5| and pinion 50 carried thereby so that the latter is moved into or out of engagement with the teeth |09 of the double width gear wheel or pinion |01.

Thus the manipulation of arm |55 controls the operation of the feed screw operating means.

Formed integral with the outer end of sleeve |52, is a disc |56, in which are seated the threaded ends of screws |51, which latter pass through apertures formed in a disc |58, the latter being substantially thicker than the disc |56.

Interposed between the heads of screws |51 and shoulders |59, at the lower ends of the recesses that are occupied by the screws, are expansive coil springs |60.

Such construction permits disc |58 to move away from disc |56 and such movement is yieldingly resisted by the springs |60.

Formed in the outer face of disc |58 is a T-slot 6| that receives the head of a stud |62 and mounted on the projecting shank of this stud, is a collar |63.

Journaled on this collar is one end of a rod |64 that is retained in position by a nut |65 on the threaded end of bolt |62 and the lower end of this rod is pivotally connected to a crank arm |88. This crank arm is mounted to slide upon and rotate with a shaft |61 that is journaled in bearings |68 on cross slide base il and said shaft passes through a bearing |68a that depends from cross slide |2.

Crank arm |96 is maintained in position adjacent to the bearing |68a on the cross slide, by a nger |69 that is secured to the bearing and which engages in a groove |19 that is formed in the hub of the crank arm.

Secured to shaft |61 is a short depending crank arm |1| that is connected by a link |12 to the oscillating arm of the lever of the feed screw operating mechanism 20.

Formed in the inner face of disc |58 concentric with shaft 5| is a circular chamber |13 and occupying this chamber is a disc |14 that is keyed to shaft |5|. The periphery of this disc is provided with teeth.

Interposed between the side faces of discs |14 and the inner faces of discs |58 and |58, are friction producing discs |15 or fiber or analogous material.

A block |18 is arranged for sliding movement in an opening in disc |58 that communicates with the chamber |13 and formed on the inner l' end of this disc is a tooth |11 that is adapted tot is formed in disc |56, is a roller |8| that engages the surface of a cam |82 that is supported upon the hub of eccentric |82 and which hub is concentric with shaft |5| and sleeve |52.

` The surface of this cam that is engaged by roller |8| is approximately 180 in length and the greater portion thereof is concentric with the axis of shaft l5! as designated by |83.

At both ends of the concentric cam surface |83,

, the surface inclines or raises slightly as desigtoY nated by |84 and at the ends of these inclined portions are shoulders |85 that function as stops to limit the movement of roller |8| It is necessary to shift the position of the discs |58 and |58 when the Shaper is shifted from. horizontal to vertical position and vice versa in order to bring the slot |6| into proper position for transmitting movement to the feed screw and likewise it is necessary to change the position of the cam |82 when the position of the discs is changed.

Formed in the edge of cam disc |82 between the ends of the cam surface |33, are notches |86 that are disposed 90 apart and adapted to engage in either one of these notches is the outer end of a pin |81 that is mounted for sliding movement in the bearing 85 and which is normally moved outward under the influence of a spring |88. This cam latching pin |81 is shifted rearwardly out of engagement with the notch in the cam disc by means of a pin |89 that projects from the outer portion of pin |81 through a slot |98 that is formed in bearing 85.

Thus the cam may be readily shifted to correspond with the position of the discs |56 and |58 when the machine is being operated either horizontally or vertically and said cam is firmly retained in its shifted positions by the latching pin |81.

Assuming that the ram is being operated in a horizontal position, the bed plate rests on the cross slide and bed i5 is firmly anchored to the bed plate by the bolts 5.

1 shows the shaper and the operating parts thereof in position for horizontal movement of the ram- The work is clamped between the xed and movable jaws 42 and l5 of the vise and the movable jaw is locked against the work by tightening bolt 41.

The vise supporting table 3| is adjusted vertically by manipulation of the hand Wheel 35 and by employing the nut 33 and threaded rod 32, the table may be very quickly raised or lowered to the desired position.

When the work has been properly positioned and the tool carried by the tool holder 59 at the forward end of the ram has been properly adjusted motor 19 is started and Worm 88 on the motor shaft transmits rotary motion to worm wheel 8|.

When handle |83 is pulled outward to engage pins. 81 in the recesses 88 as illustrated in Fig. 19, worm wheel 8| will drive sleeve 82 and pinion 95 which is keyed to said sleeve will drive disc 98 which latter is mounted on the non-circular portion |0| of main driving shaft 83, thereby imparting rotary motion to said shaft.

If it is desired to operate main driving shaft 83 at increased speed, handle |83 is moved inward to the position illustrated in Figs. and 11, thereby disengaging pins 81 from` the recesses 88 and pinion 98 carried by the hub of worm wheel 8| now drives pinions 9| and 94 and the latter drives pinion 95 which in turn drives disc 98 and thereby imparts rotary motion at increased speed to the main driving shaft.

As the main driving shaft is rotated, clutch will be rotated inasmuch as it is connected by a key to the driving shaft and at both ends of the travel of the ram, the clutch will be moved lengthwise upon the main driving shaft by the operation of certain parts illustrated in Figs. 9 and 10 and as a result of engagement of the blocks |38 on rail 62 with the edges of lever |25, thus bringing about a reversal of the movements of the ram.

As illustrated in Fig. 10, the clutch is shown with its clutch face ||2 in engagement with the clutch face on pinion |85 and the rotation of this pinion and its engagement with the teeth of rack 8|, moves the ram forwardly on its Working stroke.

The rear one of the blocks 38 carried by rail 62 approaches and engages the rear edge of lever |25, thereby swinging said lever forward upon its axis, the stud |28, and as such movement takes place, the inclined edges of slot |26 against the roller |28 which roller is carried by the arm |36, said arm will be shifted lengthwise and thereby through. the engagementk of teeth |36 with the teeth |3| on the ends of arm |32, said arms will be swung on their axes, the studs |33 and the swinging apart of the outer ends of said arms |32 will expand retractile spring |35.

When the outer ends of the arms |32 move past center or past a line intersecting the axes |33, the retraction of the expanded spring will impart a quick snapping movement to arms |32 to move the same to their limit of movement and the engagement of teeth |3| with the teeth on arm |30 will quickly impart further lengthwise movement to arm 21 so as to further swing lever |25 on its axis.

As lever |25 is thus moved the end of slot |36 will contact with pin |31 and the further movement of lever |25 will impart corresponding movement to lever |2|.

The engagement of the edges of inclined slot |23 in lever |2| with roller |24 that is carried by pin ||8 will impart short longitudinal movement to said pin and to the sliding plate ||6 in which said pin is seated and roller ||9 that is carried by the upper end of said pin ||8 engaging the clutch between the flanges ||4 will shift said sleeve lengthwise upon the main driving shaft so as to disengage clutch face ||2 from the clutch face on pinion |05 and engage clutch face ||3 with the clutch face ||0 on pinion |08.

Inasmuch as pinion |08 engages the teeth on rack bar S2 and this rack bar is reversely positioned with respect to rack bar 6|, the ram will be caused to reverse its movement and move rearwardly upon the bed I6.

As the ram approaches its rearward limit of movement, the forward one of the blocks |38 will engage the front edge of lever |25, thereby bringing about a. reversal of the movements just described and following the shifting of the clutch on the main driving shaft and the engagement of said clutch with pinion |05 the ram will be caused to move fo-rward on its working stroke.

In order to engage lever |2| and hold same in a neutral position so as to maintain clutch in neutral position, the operator engages lever |48 and swings same rearwardly after the ram is operating in a horizontal position or downwardly after the ram is operating in a vertical position and the enga-gement of pin |44 in the inclined slot |41, will move block |43 forwardly through slot in plate |40, thereby compressing spring |42 and as lever |2| is moved into a neutral position by one of the blocks |38, the plate will be forced forward by the power stored in spring |42 so that the downwardly bent portion |22 of lever |2| will be engaged in the notchl |4| in the inner end of said plate and thus said lever |2| is held in a neutral position and likewise clutch is maintained in a neutral posi-- tion and the ram will cease to operate.

When it is desired to start the ram, the position of lever |48 is reversed so that the same occupies the position illustrated in Fig. 9 and the engagement of pin |44 in slot |41 moves block |43 rearwardly in the slot in plate |40 and moves the latter plate outward so as to release or disengage lever |2| from the notch |4| and under the influence of spring |21 the parts of the clutch shifting mechanism will swing to one position o1' the other and thereby cause the ram to resume its reciprocating movements.

Each time the ram moves rearward or on its reverse stroke, the teeth |09 on pinion |01, which latter is driven by clutch will impart rotary motionv to pinion |50 that is keyed to shaft |5| and this motion will be transmitted to disc |14 having the notched periphery, which disc is keyed to shaft |5|.

As a result of the engagement of tooth 11 carried by sliding plate |16 with the teeth of disc |14, the head comprising discs |56 and |58 will be rotated and through rod |64 that is connected to the head by bolt |62 motion will be imparted to the said screw I9, thereby shifting the cross slide laterally a short distance from the cross slide base in the conventional manner.

When the ram is operating in a horizontal plane, the rear end of rod |64 is connected to crank arm |66 as illustrated in Fig. 1 and when the ram is operating in a vertical position, it is necessary to utilize an extension rod between said rod |64 and crank arm |66 as illustrated in Fig. 7.

As rod |64 moves crank arm |66, shaft |61 will be partially rotated, thereby imparting movement to crank arm |1| and link |12 and which latter is connected to the conventional feed screw operating mechanism.

During the reciprocating movements of the ram, roller |8| that is carried by sliding plate |56, rides on the concentric face |83 of disc |82 and as the roller approaches the ends of its travel, it rides up the inclined surfaces |84 and then comes to rest against one of the shoulders |85. As the roller rides up one of the inclined surfaces |84, sliding plate |56 will be moved a short distance radially outward so as to disengage tooth |11 from the teeth of disc |14, thereby permitting said disc, which is keyed to shaft |5|, to continue to rotate with said shaft while the ram is moving to the end of its stroke.

It will be understood that the feed screw operating mechanism just described is actuated to rotate the feed screw to feed the cross slide upon its base during the reverse or rearward movement of the ram and that during the forward or working stroke of the ram the head comprising the discs |56 and |58 andl parts carried thereby are reversely rotated by the engagement of the teeth |09 on pinion |01 with the teeth of pinion |50 during which time the plate |16 is held at its outer limit of movement by the engagement of the roller |8| on one of the inclined faces |84 so that tooth |11 is out of engagement with the teeth of disc |14.

In order to cause the head comprising the discs |56 and |58 to be picked up and caused to rotate with toothed disc |14 that is fixed to shaft |5| as the ram reverses its movements at the ends of its stroke and while the roller |8| is resting on one of the shoulders |85 with the tooth |11 out of engagement with the teeth of disc |14, the friction discs |15 are interposed between the discs |56 and |58 and the side faces of disc |14. These discs |15 under the pressure of springs |60 provide sufficient friction between the head and the disc |14 to cause the parts to rotate together at the beginning of each stroke of the ram and thereby carry the roller |8| away from the shoulder and down the inclined surface |84 until tooth 11 is engaged with the teeth of disc |14, thereby providing a positive driving connection between the head and disc |14.

The engagement of latch pin |81 in the notches |86 affords means for holding the head comprising the discs |56 and |58 in proper position while the ram is being operated in either horizontal or vertical position.

In order to render the feed screw operating mechanism inoperative, pin |55 is engaged and moved through slot |54 approximately a quarter turn, thereby rotating the eccentric |53 so as to shift the position of shaft |5| so that pinion |50 lout of engagement with the teeth |09 on disc Thus it will be seen that I have provided a shaper having a ram mounted so that it may be swung from horizontal to vertical positions in order to accomplish various metal shaping and cutting operations and which shaper is relatively simple in construction, capable of being easily and quickly shifted from one position to another and which is very effective in performing the functions for which it is intended.

It will be understood that minor changes in the size, form and construction of the various parts of my improved duplex Shaper may be made and substituted for those herein shown and described without departing from the spirit of the invention, the scope of which is set forth in the appended claims.

I claim as my invention:

1. In a duplex Shaper the combination with a base, of a work table mounted for vertical adjustment on the front of said base, a cross slide base, a cross slide mounted for transverse movement on said cross slide base, a bed plate hinged to the forward portion of said cross slide so as to swing upwardly and forwardly therefrom, .a bed mounted for longitudinal adjustment on said bed plate, a ram mounted for reciprocatory movement on said bed and means for counterbalancing the weight of the ram when the same occupies a substantially vertical position.

2. In a duplex Shaper the combination with a base, of a work table mounted for vertical adjustment on the front of said base, a cross slide base, a cross slide mounted for transverse movement on said cross slide base, a bed plate hinged to the forward portion of said cross slide so as to swing upwardly and forwardly therefrom, a bed mounted for longitudinal adjustment on said bed plate, a ram mounted for reciprocatory movement on said bed, means including a spring for counterbalancing the weight of the ram while the same is operating in a substantially vertical position and means for adjusting the tension of said spring.

3. In a duplex shaper, a bed, a ram mounted for reciprocatory movement on said bed, a shaft journaled on said bed, driving connections between said shaft and said ram, a motor mounted on said bed, a worm carried by the shaft of the motor, a sleeve loosely mounted on one end of the ram operating shaft, a worm wheel loosely mounted on said sleeve, which worm wheel is engaged by the worm on the motor shaft, projections carried by said sleeve for engaging in recesses in said worm wheel to effect driving engagement between said sleeve and worm wheel, a pinion secured to said sleeve, a disc mounted to rotate with and slide lengthwise upon the ram operating shaft, said disc and pinion having engaging parts which permits slight relative rotary movement between said disc and pinion and springs arranged between the interengaging parts of said pinion and disc for yieldingly resisting the relative rotary movement between said parts in one direction.

4. In a duplex Shaper, a bed, a ram mounted for reciprocatory movement on said bed, a shaft journaled on said bed, driving connections between said shaft and said ram, a motor mounted on said bed, a worm carried by the shaft of the motor, a sleeve loosely mounted on one end of the ram operating shaft, a worm wheel loosely mounted on said sleeve, which worm wheel is engaged by the worm on the motor shaft, projections carried by said sleeve for engaging in recesses in said worm wheel to effect driving engagement between said sleeve and worm wheel, a pinion secured to said sleeve, a disc mounted to rotate with and slide lengthwise upon the ram operating shaft, said disc and pinion having engaging parts which permits slight relative rotary movement between said disc and pinion, springs arranged between the interengaging parts of said pinion and disc for yieldingly resisting the relative rotary movement between said parts in one direction, a pinion carried by said worm wheel, which pinion is larger than the pinion carried by the sleeve, a pair of connected different sized pinions with which the pinion on the sleeve and the pinion on the worm wheel are adapted to engage and a handle connected to said sleeve for moving the same lengthwise upon the ram operating shaft.

5. In a duplex Shaper the combination with a base, of a cross slide mounted for transverse movement on said base, a bed hinged to said cross slide so as to swing upwardly and forwardly through an arc of at least 90, a ram mounted for reciprocatory movement upon said bed, a driving shaft mounted for operation on said bed, a motor carried by the bed for driving said shaft, reversely arranged racks on the ram, pinions loosely mounted on the driving shaft for engaging the teeth of said racks, a clutch mounted to slide lengthwise upon and rotate with said driving shaft between said pinions, the ends of which clutch are adap-ted to engage and drive said pinion, a pair of cooperating springheld levers for imparting sliding movement to said clutch and means mounted on one of the rack bars for engaging said levers at the ends of the travel of the ram to actuate said clutch and effect a reversal of the driving movement imparted to said ram.

6. In a duplex shaper the combination with a base, of a cross slide mounted for transverse movement on said base, a bed hinged to said cross slide so as to swing upwardly and forwardly through an arc of at least 90, a ram mounted for reciprocatory movement upon said bed, a driving shaft mounted for operation on said bed, a motor carried by the bed for driving said shaft, reversely arranged racks on the ram, pinions loosely mounted on the driving shaft fo-r engaging the teeth of said racks, a clutch mounted to slide lengthwise upon and rotate with said driving shaft between said pinions, the ends of which clutch are adapted to engage and drive said pinions, a pair of cooperating springheld levers for imparting sliding movement to said clutch, means mounted on one of the rack bars for engaging said levers at the ends of the travel of the ram to actuate said clutch and effect a reversal of the driving movement imparted to said ram and manually operable means for engaging one of the clutch operating levers and holding same in neutral position.

7. In a duplex Shaper, a bed, a ram mounted for reciprocatory movement upon said bed, a driving shaft mounted for operation on said bed, a motor carried by the bed for driving said shaft, reversely arranged racks on the ram, pinions loosely mounted on the driving shaft for engaging the teeth of said racks, a clutch mounted to slide lengthwise upon and rotate with said driving shaft between said pinions, the ends of which clutch are adapted to engage and drive said pinions, a pair of cooperating levers for imparting sliding movement to said clutch, means mounted on one of the rack bars for engaging said levers at the ends of the travel of the ram to actuate said clutch and effect a reversal of the driving movement imparted to said ram, manually operable means for engaging one of the clutch operating levers and holding same in neutral position and spring actuated means associated with said levers for shifting the same out of neutral position when said levers are released from said manually operating holding means.

8. In a duplex shaper, a cross slide base, a cross slide mounted for movement upon said base, a feed screw mounted on said base for imparting movement to said cross slide, a bed plate carried by said cross slide, a ram mounted for reciprocatory movement on said bed plate, a driving shaft journaled on said bed, means actuated by said driving shaft for imparting reciprocatory movement to said ram, means actuated by said driving shaft for intermittently rotating said feed screw and manually operable means for rendering said feed screw actuating means inoperative.

9. In a duplex shaper, a cross slide base, a cross slide mounted for movement upon said base, a feed screw mounted on said base for imparting movement to said cross slide, a bed plate carried by said cross slide, a ram mounted for reciprocatory movement on said bed plate, a driving shaft journaled on said bed, means actuated by said driving shaft for imparting reciprocatory movement to said ram, a shaft journaled on the bed of the ram adjacent to said driving shaft, driving connections between said driving shaft and second mentioned shaft, driving connections between said second mentioned shaft and the cross slide feed screw and manually operable means for disengaging the driving connections from said driving shaft to said second mentioned shaft.

l0. In a duplex Shaper, a base, a table mounted for vertical adjustment on the front of said base, means for raising and lowering said table, a Work engaging vise adjustably mounted on said table, a cross slide base carried by said base, a cross slide mounted for operation upon said cross slide base, a feed screw for imparting movement to said cross slide, a bed plate hinged to Said cross slide, a bed carried by said bed plate, a ram mounted for reciprocatory movement on said bed, a main driving shaft journaled on said bed, means for converting the rotary motion of said driving shaft to reciprocating motion and imparting the same to said ram, means for varying the speed of the motion transmitted from said driving shaft to said ram, means for rendering the ram driving means inoperative and means for transmitting motion from the main driving shaft to the cross slide feed screw.

11. In a duplex shaper, the combination with a base, of a cross slide mounted for transverse movement on said base, a bed plate hinged to the front side portion of said cross slide so as to swing upwardly and forwardly through an arc of at least 90, adjustable braces between said bed plate and cross slide for holding the bed plate in differently adjusted positions, a ram mounted for reciprocatory movement on said bed plate, a motor carried by said bed plate and means actuated by said motor for imparting reciprocatory movement to said ram.

12. In a duplex shaper, the combination with a base, of a cross slide mounted for transverse movement on said base, a bed plate hinged to the front side portion of said cross slide so as to swing upwardly and forwardly through an arc of at least 90, adjustable braces between said bed plate and cross slide for holding the bed plate in differently adjusted positions, a ram mounted for reciprocatory movement on said bed plate, a motor carried by said bed plate, means actuated by said motor for imparting reciprocatory movement to said ram and means for controlling the reciprocating movement of said ram.

13. In a duplex Shaper, the combination with a base, of a cross slide mounted for transverse movement on said base, a bed plate hinged to the front side portion said cross slide so as to swing upwardly and forwardly through an arc of at least 90, adjustable braces between said bed plate and cross slide for holding the bed plate in differently adjusted positions, a ram mounted for reciprocatory movement on said bed plate, a motor carried by said bed plate, means actuated by said motor for imparting reciprocatory movement to said ram and automatically operating means for causing the ram to reverse its motion at the ends of its travel.

14. In a duplex shaper, the combination with a base, of a cross slide mounted for transverse movement on said base, a bed plate hinged to the front side portion of said cross slide so as to swing upwardly and forwardly through an arc of at least 90, adjustable braces between said bed plate and cross slide for holding the bed plate fn differently adjusted positions, a ram mounted for reciprocatory movement on said bed plate, a motor carried by said bed plate, means actuated by said motor for imparting reciprocatory movement to said ram and a work supporting table adjustably mounted on the forward portion of said base.

15. In a duplex shaper, the combination with a base, of a cross slide mounted for transverse movement on said base, a bed plate hinged to the front side portion of said cross slide so as to swing upwardly and forwardly through an arc of at least 90, adjustable braces between said bed plate and cross slide for holding the bed plate in differently adjusted positions, a ram mounted for reciprocatory movement on said bed plate, a motor carried by said bed plate, means actuated by said motor for imparting reciprocatory movement to said rain and means for supporting said base plate in a substantially vertical position.

ALTON J. WELLS.

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