US1239053A - Metal-working machine. - Google Patents

Description

R. H. SMITH.

METAL womuus MACHINE.

APPLICATION FILED SEPT-18 19i3- 1 ,239,053. Patented Sept. 4, 1917.

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METAL WORKING MACHINE.

APPLICATION FILED SEPT. IS. 1913.

Patented Sept. 4, 1917.

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METAL WORKING MACHINE.

APPLICATION HLED SEPT. 18. I913 1,239,053. PatentedSept. 4,1917.

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METAL WORKING MACHINE.

APPLICATION rein SEPT. la. I913.

Patented Sept. 4, 1917.

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R. H. SMITH.

METAL WORKING MACHINE.

APPLICATION FILED SEPT. 18. 1am.

Patented Sept. 4, 1917.

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1,239,053. Patented Sept. 4,1917.

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UNITED s'raTEsm'rENT OFFICE.

ROY H. SMITH, 0F CLEVELAND, OHIO.

METAL-WORKING MACHINE.

Application filed September 18, 1913.

To all whom it may concern:

Be it known that I, ROY H. Snrrrrr, a citizen of the United States, residing at Cleveland. in the county of Cuyahoga and State of Ohio. have invented a certain new and useful improvement in l\letal-\Vo1l ing Machines. of which the following is a full, clear. and exact description.

This invention relates to metal working machines. and particularly to automatic machines for drilling and facing or otherwise operating an irregular or polygonal blanks. such as square or hexagonal nut blanks.

The main object of the invention is to provide a machine wherein the diiferent operations are )erformed on blanks such as of the type specified, more rapidly. more satisfactorily and less expensively than with prior machines.

Further and more specific objects are to provide a construction wherein substantially the same cutting speed is obtained in drilling and facing a nut blank without requiring a rotary facing tool, and to provide means for inserting a polygonal blank in a rotating chuck or holder.

The above and other objects are attained by my invention which may be briefly summarized as consisting in certain novel details of construction and combinations and arrangements of parts which will be described in the specification and set forth in the appended claims.

In the accompanying sheetsof drawings which show the preferred embodiment of my invention, Figure 1 is a side view of the machine. Fig. .2 is a top plan view with parts broken away, and the major portion of the blank feeding mechanism removed. Fig. 3 is an end view looking toward the forward end of the machine. Fig. 4 is an end view looking toward the rear end of the machine. Fig. 5 is an enlarged longitudinal sectional view of a portion of the machine taken substantially along the line 5- 5 of Fig. 9. Figs. 6 and 7 are detail sectional views on an enlarged scale taken substantially along the lines 6-43 and 7-7, respectively. of Fig. Fig. 8 is an enlarged end view of one of the blank receiving chucks. Fig. 9 is a transverse sectional vi w of a portion of the machine with parts 1n Specification of Letters Patent.

Patented Sept. 4, 1917.

Serial No. 790,385.

elevation. the section beinc taken substantially along the line 99 of Fig. 5; and Fig. 10 is an enlarged sectional view of a part of the machine, the section being taken substantially along the line 10--10 of Fig. 2.

Themachine includes a suitable bed or frame 11. in the upper central portion of which is a turret head 12 (see Figs. 2 and 5), in which is mounted a. turret 13 adapted to be rotated or turned intermittently about a horizontal axis by certain indexing mechanism to be referred to presently. This turret carries six chuck spindles 14-, which are equally spaced about the axis of the turret, and are rotatably mounted in bearing sleeves 14 secured in suitable passageways extending longitudinally of the turret or parallel to its axis of rotation. Each of these chuck spindles has a passageway extending centrally from end to end and enlarged at both ends, and mounted in the passageway is a central rod 15 which is capable of slight endwise movement, and is provided at its forward end with an enlarged threaded portion 15 to which is screwed and locked by a lock nut 15", a chuck sleeve 16. a portion of which is split or cut from its forward. end inwardly at three points. forming three segmental chuck jaws 16 which tend to spring laterally outward when the chuck is adapted to be opened to receive or permit the ejection of a blank; and are drawn inwardly to grip a blank. the three jaws having a central opening of a shape corresponding to the shape of the blank which the chuck is designed to receive. As shown in Fig. 8 the chuck has a hexagonal opening 16 which will accommodate a hexagonal nut blank of certain size. If the machine is to operate on blanks of a different size or shape, the

chucks will be replaced with others. suitably designed for the blank to be operated on. It will be seen that the chuck jaws are tapered exteriorly. and engage a correspond.- ingly ta iered ring 17 fittecl tightly in a socket 0 an enlarged head 14 at the for ward end of the spindle 14, the taper on the parts being such that when the jaws are drawn inwardly by an inward or endwise, movement of the rod 15 the jaws will be compressed. so as to grip the blank. and when the rod and jaws are moved endwise in the reverse direction, the jaws may spread slightly. The rod 15 is .pulled inwardly and is normally held in inward position by means of a spring 18 surrounding the rear portion of the rod 15 and located in the rear enlarged part of the spindle opening, said spring bearing against a shoulder 14 of the spindle and against an abutment in the form of an adjustable nut 15 on the rear end of the rod 15.

Each chuck is provided with a blank ejector consisting of a block 19 mounted in the chuck sleeve and extending forwardly a short distance into the jaws. This ejector block is capable of a slight endwise movement and is adapted to be given a quick forward movement to eject a blank when the jaws are opened, by a spring 19*, which is located between the rod and ejector and is compressed by the blank when the latter is inserted in the chuck, the said spring being located in a socket in the rear end of the block. It will be understood that the construction of all the chucks is the same as that described and shown in detail in Fig. 5.

All the spindles are simultaneously and continuously rotated by a main drive or power shaft 20 which is provided at its rear end with a pulley 20, and extends length wise through the major portion of the machine and centrally through the turret 13.

This shaft 20 is provided just at the rear of the turret with a pinion 20", which engages and drives pinions 20 one of which is fixed to the rear end of each of the chuck spindles 14. The object of rotating the spindles and chucks will appear presently.

In connection with-this six-chuck turret of a machine such as the present, wherein nut blanks are drilled and then faced or crowned, I employ two rotary drills, and two stationary facing or crowning tools, the four tools being spaced 60 degrees apart and arranged opposite or in proper relationship with respect to four of the chucks after each movement of the turret. In this case the sequence of operations is carried on in duplicate, or simultaneously on two nut blanks. Two nut blanks are inserted in the two uppermost chucks, thence the turret is turned 120 degrees so as to bring the two blanks in line with the two drills, thehce it is turned 120 degrees to bring the drilled blank: in line with the two facing tools, and thence it is again turned'120 degrees to again bring the same two chucks in position to receive two more blanks, the faced or crowned nuts being ejected from the chucks as the latter are being moved from the crowning position to the receiving position. I wish it to be understood, however, that it is immaterial whether the operations are carried onjih duplicate, as in this instance, or singly.

The two drills shown at 21 are supported by suitable socketed members or chucks driven by two drill spindles 21 mounted in bearings carried by standards 21 of a slide 21 (see Fig. 10) mounted in ways of the bed and adapted to be reciprocated lengthwise of the machine to feed the drills to and through the blanks and thence to retract the same.

Two facing or crowning tools 22 are carried by a standard 22 secured to a slide 22" mounted in ways and adapted to be reciprocated to carry the facing tools up to and away from the drilled blanks.

The two slides are reciprocated by properly shaped and timed cams 23 (see Fig. 1) both secured to a shaft 24 which is directly beneath the shaft 20 and is driven continuously in the manner hereinafter described. The cams 23 are engaged by rollers 23 (see Figs. 1 and 10) carried by pins '23" extending diagonally upward and outward through bosses 23 integral with the slides and normally held securely therein by bolts 23, each of which can be removed to permit the removal of the corresponding slide with the parts carried thereby.

The two drill spindles 21 are rotated simultaneously in the same direction, but in the reverse direction with respect to the diin and roller and of the rection of rotation of the chuck spindles by means of a gear 25 on the forward end of vshaft 20 (see Figs. 1 and 2) and two gears drills are rotated at the same or substantially the same predetermined speed that the chucks are rotated in the reverse direction. By this arrangement not only is high cut-- tin t speed obtained without rotating the dri ls at an excessively high rate, but both the drills andfacing tools will out at about the same cutting speed which will be made the maximum cutting speed, and this is obtained with a stationary facing tool which is much more effective and desirable than a rotary facing tool. That the cutting speeds of the drill and facing tool will be substantially the same will be apparent when it is considered that the average distance of the cutting face of a nut crowning or facing tool from the center of the nut blank is about twice the average distance of the cutting face of the drill from the center of the blank.

A very important part of my invention resides in the mechanism for inserting the poly onal blanks in the rapidly rotating chuc s. and this part of my invention and other features closely associated therewith will now be described. The nuts are fed from two similar hoppers 30, down through two chutes 30*, the lower portions of which are vertical, and the lower ends of which are directly in line with the two uppermost chucks, after each indexing movement of the turret, so that the blanks may be moved laterally into the same.

The blanks may be fed from the hoppers into the chutes by any suitable mechanism, but in the present case I utilize in each hopper a star shaped member 30 which is turned step by step, and is provided with radial arms which gradually move the blanks into the chutes and keep the latter well filled with the blanks. These members 30" are moved step by step by ratchet mechanism designated as a whole by the reference character-30", the pawls of the ratchets being actuated by rods 30 connected to a threearmed bell crank 30 which is rocked by an internal cam 31 which is engaged by a roller 30 on the lower end of one arm of the bell crank. This cam 31 as well as other cams to be referred to resently, are supported from and operated y a shaft 32 in the plane of shaft 24, but to one side of the 'center line of the machine. This shaft 32 isydriven from the main shaft 20 through a ti ain of gears, including a pinion 33 on shaft 20 which engages a large gear 33 on a short idler shaft 33, provided with a pinion 33, which is engaged by a large gear 33 adapted to be clutched and unclutched from the said shaft 32 on which the cam 31 is mounted. As the shaft 32 drives the cam shaft 24 previously referred to throu h gearing 34 (see 1 3%. 1, 5 and 9), by unc utching the gear 33" y a conveniently located hand lever 33, the parts operated or driven from the shafts 24 and 32, in fact all the reciprocating and otherwise intermittently moving parts can be almost instantly stopped.

Referring again to the mechanism for inserting theblanks into the rotating chucks, it will be seen by reference, particularly, to Fig. 5 at the lower ends of the chutes 30 are sleeves 35 which extend at right angles to the chutes and are in line with the two uppermost chucks when the latter are in blank receiving position. These sleeves which have portions of their upper walls removed so that the blanks may drop into the same from the chutes, are mounted in blocks 36 on the lower front sides of the chutes and are capable of slight endwise movement therein. The nut blanks are adapted to be moved from these sleeves into the chucks by two horizontal feeding rods 37, whose forward.

ends projectinto the sleeves, and which are loosely supported in two sets of hearings or bosses 38 carried by a bracket 38 secured to the slide 22 which carries the facing tools. The rods 37 are adapted to be reciprocated with the slide, but are nevertheless yieldingly connected to the parts which actuate them through the medium of coil springs 37 which surround the rods and are located between-the rear set of bosses 38 and collars 37" fixed to the rods and normally bearing against the forward bosses 38.

In consequence when the slide is moved forwardly toward the chucks, the yielding or cushioning springs move the rods in the same direction, and when the slide is retracted the rods are positively retracted by the engagement of the forward sets of bosses 38 with the collars 37 which, as before stated, are secured to the rods.

The sleeves 35 likewise have a limited endwise movement'with the rods 37, the said sleeves being moved forwardly with the rods by springs 37 which surround the rods between the sleeves and the adjacent bosses 38, and being moved rearwardly or away from the chucks by the rods which have pins 37.

extending downward into elongated slots of the sleeves. W

The construction is such that as the slide 22 moves forwardly the rods 37 are moved forwardly by the springs 37 and the sleeves 35 are moved forwardly by the springs 37 until their forward ends are very close to the jaws of the two uppermost chucks, which jaws are at such time opened, as will be explained; The sleeves are moved forwardly until flanges on the rear ends thereof engage the adjacent faces of the blocks 36. As the rods v37 move forwardly they engage the lowermost nut blanks in the chutes, and push the same through the sleeves 35 into the jaws, or, in the event that the pol onal nut blank does not at once register wit the polygonal opening in the chuck, the blanks are pushed up against the faces of the chucks and'immediately begin to spin or rotate with the latter. However, the increasing pressure ofthe rods on the blanks, due to the augmenting compression of the springs 37, causes the rotation of the blanks to slow down until the blanks and chuck openings come into exact registration, whereupon the blanks are thrust into the chucks, moving inward the ejector blocks 19 and compress ingthe springs 19.

hereupon the jaws close onto the blanks and the rods are retracted, moving the sleeves 35 away from the chucks, so as to prevent a nut blank from striking the same, as the turret is rotated, in the event that a blank is not the full distance in the jaws of one of the chucks.

Durin the forward movement of the rods 37 at w ich time the lowermost blanks are moved into the chucks, the blanks immediately above the lowermost drop onto the upper sides of the rods, which sides are fiattened as shown in Figs. 6 and 7, and thence the rods are retracted a suflicient distance to bring the forward ends of the rods from beneath the blanks resting thereon, whereupon the blanks drop down into the sleeves ust in front of the forward ends-of the rods, so that upon the next forward movement of the rods, said blanks will be pushed into the chucks.

At or substantially at the time that the rods begin to move the blanks forwardly toward the chucks, the spindles of the two chucks which are in position to receive blanks are given a slight forward movement toward the blanks which are to be moved into the chucks, or toward the sleeves 35, the forward movement being suflicient to enable the jaws of the chucks to open. The opening of the chucks to permit the blanks to be moved therein is accomplished by a lever 40 which is pivoted between its ends on the frame 11 (see particularly Fig. 5) in the center plane of the machine, and which has a bifurcated upper end straddling the shaft 20. At the upper end of this lever are two bosses 40 in which are mounted two adjustable threaded pins or bolts 40", the forward ends of which are adapted to engage the rear ends of the two uppermost chuck spindles when the lever 40 is rocked. The lever 40 is rocked by a cam disk 41 which is mounted on shaft 32 and constitutes the direct support for cam 31 which actuates the mechanism for feeding the blanks from the hoppers 30. This cam disk 41 has on its rear face'a cam projection 41 which at each revolution of the disk 41 engages a roller 40* at the lower end of lever 40, and as the roller rides up onto and over the face of the cam projection, the upper end of the lever is swung forwardly and the pins 40 move the two chuck spindles forwardly and hold them in that position until the two chucks have received the nut blanks. Whereupon the roller rides ofi the cam projection as the latter rotates past the same, and the lever is restored to normal position by a spring pressed plunger 42 which bears against the lower end of the lever and presses the same toward the cam disk.

While the two uppermost chucks are receiving the blanks as above described, the blanks in two chucks are being drilled and the drilled blanks in the remaining two chucks are being faced or crowned. At the conclusion of these operations which occur simultaneously, the turret is turned through an arc of 120 degrees so as to carry the blanks just received in the chucks to drilling osition, to carry the two drilled blanks to acing position and to carry the two faced blanks past the point at which they are ejected from the chucks and to bring the latter to the blank receiving positions. The turret is moved in this manner by an indexing mechanism including a rotatin disk or plate 43 which is secured to sha 32 and is provided with two rollers 43 which engage in radial V-sha ed slots 44 in an indexing disk 44 secure to the end of turret 13. (See Figs. 5 and 9). The spacing of the coiiperating parts is such t at the two rollers which engage the slots successively, give the turret the re uired 120 degrees movement at each revo ution 'of said plate 43. To prevent any movement of the turret between intermittent 120 degrees movements which the said turret is intended to have, the shaft 32 is provided alon side the plate 43 with a lockin cam 44" having an archaped periphera portion which, after the desired movement has been 'ven to the turret and indexing plate 44, re ls or comes into registration with one of six "concave portions of the periphery of the indexing plate, each of which portions are turned or curved on a radius substantially equal to the radius of curvature of the arc-shaped peripheral portion of the locking cam disk 44*.

As the chucks pass from facing position to blank receiving position, the now drilled and faced nut blanks are ejected from the chucks and are permitted to drop into a suitable receptacle, not shown. The chucks are successively opened to permit the ejectors 19 to eject the blanks from the ch'uclm by means of a roller 45 so located that as the chucks are passing from the facing to the receiving positions the rear ends of the chuck spindles engage the periphery of the roller and in so doing are moved forwardly a suflicient distance to allow the chuck jaws to release the blank and permit its ejection in the manner stated. As the spindles pass the roller the former are returned to their normal positions and the chucks which have just been relieved of the blanks, next receive new blanks which during the next sequence of operations are drilled, faced and then ejected from the machine.

A brief description of the operation of the principal parts of the machine will now be given. The shaft 20, as well as the shafts 24 and 32 are continuously driven, and in consequence, through the medium of the gears 20 and 20, the chucks are continuously rotated at a redetermined speed in one direction, and t rough the medium of the gears 25-and 25 the drills are continuously rotated at a predetermined speed equal preferably to the speed of the chucks, but in the reverse direction. As a result, the blanks will'be drilled at a speed equal to the combined speeds of the drills and chucks, while the blanks will be faced at the speed dependent upon the speed of rotation of the chucks. For the reasons previously stated, however, the average cutting speed of both the facing tools and drills will be the same.

Assuming that the turret has just been turned by the indexing mechanism, two

empty chucks are in alinement with the feeding mechanism, the blanks in two other chucks are in alinement with the drills, and the two drilled blanks in, the remaining two chucks are in alinement with the facing tools. At or substantially at the completion of the turret movement, the slides 21 and 22 are moved forwardly, so as to cause the drills to drill the blanks in alinement therewith, and to cause the facing tools to face or crown the blanks in alinement therewith. Thereupon the two slides are retracted, the slides being moved both forwardly and rearwardly by the cams on the continuously rotating shaft 24.

At or substantially at the completion of the said indexing movement of the turret, the two chucks which are about to receive the blanks are opened by the lever 40 which at the proper time is rocked by the cam 41 which holds the jaws open until the blanks are inserted therein. At the same time that the slides are moving forwardly to drill and face the blanks in four of the chucks, as has just been described, the slide 22 compresses the springs 37 and 37, moving forwardly the sleeves or tubular members 35 at the lower ends of the chutes, and also the feeding rods 37 which extend into the said sleeves. The forward ends of the sleeves 35 are brought up close to the jaws which are now open as before stated, and the rods 37 are caused to travel forwardly through the tubular members, the springs between the slide and the rods causing the polygonal blanks to be either inserted immediately into the chuck openings, or to be pressed yieldingly against the faces of the chuck and to be inserted therein as soon as the blanks are in alinement with the chuck openings. Thereupon the two chucks are closed, and when the slides are retracted to move the drills and facing tools away from the blanks which have just been drilled and faced, the rods 37 are positively retracted, and the latter move the sleeves 35 away from the chucks a su'ilicient distance to prevent engagement between the sleeves and a projecting nut blank which perchance may not have been inserted or may not have remained the full distance into the chuck.

The two blanks now having been inserted in the chucks, and the blanks in the other chucks having been drilled and faced, the turret is again. moved by the indexing mechanism through an arc of 120 degrees, whereupon the sequence of operation just stated is repeated.

During each indexing movement, and while two of the chucks are being moved from facing position to blank receiving position, the roller 45 is engaged by the two chuck spindles, causing said spindles to be moved forwardly so as to permit the corresponding chuck jaws to be opened, and to the ejector blocks 19 to throw the now drilled and faced blanks out of the chucks, the ejecto'r blocks being impelled forwardly as soon as the jaws are opened by the springs 19 which were compressed when the blanks were previously inserted into the chucks.

I have described only one construction which by tests and usage has proven to have very high efficiency, and to produce results satisfactory in all respects. Nevertheless, I am aware that many of the parts can be modified in construction, and I therefore do not desire to be confined to any details of construction or arrangement, except as I am permit expressly limited by the terms of the appended claims.

Having thus described my invention, what I claim is:

1. In combination in a metal working machine, a rotary holder for an article to be operated on, a rotary tool and a non-rotary tool, a movable support for the holder, means for continuously rotating the holder in its support,means for rotating said rotary tool, means for intermittently moving said holder support, means for reciprocating the tools,

a stationary delivery member for the articles to be operated on and means separate from said tools for inserting an article in the rotating holder.

2. In combination in a metal working machine, a rotary holder for an article to be operated on, a rotary tool and a. non-rotary tool, a rotary support for the holder, means for continuously rotating the holder in its support, means for rotating said rotary tool, means for intermittently rotating said holder support, means for reciprocating the tools, a stationary delivery member for the articles to be operated ori and means independent of said tools and including a device extending from the delivery member and movable toward and from the holder for inserting an article in the holder while the latteris rotating.

3. In cmnbination in a metal working machine, a rotary turret, a plurality of chucks rotatably supported by the turret, each chuck having a polygonal. opening for a blank, a rotary cutting tool, means for continuously rotating the chucks in one direction, means for continuously rotating the tool in the reverse direction, means for intermittently rotating the turret, a stationary delivery member for the blanks to be operated on an means independent of said tool and including a member movable toward and from the end of the delivery member for causing a blank to be shifted from the delivery mem her into a chuck while the latter is rotating.

4. In combination in a metal working machine, a rotary turret, a plurality of rotary chucks supported by the turret, each chuck having a polygonal opening for a blank, a pair of cutting tools one rotatably mounted,

means for rotating the chucks in one direction, means for rotating said rotatably mounted tool in the reverse direction, means for reciprocating both tools toward and from the turret, means for intermittently turning the turret, a stationary delivery member and means separate from the tools and including a member movable toward and from the end of the delivery member for inserting a blank in a chuck.

5. In combination in a metal Working machine, a chuck adapted to receive blanks to be operated on, a stationary blank delivery member, and means for moving blanks toward the chuck and for inserting the same therein comprising a tubular member into which the blanks pass from the delivery member, a reciprocating feeding member eX- tending into said tubular member for moving a blank from the latter into the chuck, and means for reciprocating both the tubular member and the feeding member relative to said delivery member.

6. In combination in a metal working ma-.

chine, a chuck adapted to receive blanks to be. operated on, a blank delivery member, and means for moving blanks toward the chuck and for inserting the same therein comprising a tubular member into which the blanks pass from the delivery member, said tubular member extending toward the chuck, a reciprocating feeding member extending into said tubular member, and yieldable means for reciprocating both the tubular member and the feeding member relative to the delivery member.

7. In combination in a metal working machine. a chuck for receiving blanks to be operated on, a hopper and delivery chute eX- tending therefrom. an endwise movable tubular member arranged at the end of the chute and adapted to receive blanks from the chute, a reciprocating feeding member extending into the tubular member and adapted to shift a blank from the latter into the chuck, and means for moving the feeding member lengthwise through the tubular member and for moving the tubular member relative to the chute so that the forward end of the tubular member will be adjacent the chuck when said feeding member moves a blank therein. I

S. In combination in a metal working machine, a chuck for receiving blanks to be operated on, a hopper and delivery chute extending therefrom, an cndwisc movable tubular member arranged at the end of the chute and at right angles thereto, said tubir lar member being adapted to receive blanks from the chute. a reciprocating feeding member extending into the tubular member, and vicldable means for moving the feeding member lengthwise through the tubular member and for moving the tubular memher so that its forward end will be adjacent the chuck when said feeding member moves a blank therein.

9. In combination in a metal working machine, a rotary turret, a plurality of chucks carried by the turret, and adapted to receive blanks to be operated on, a hopper for the blanks, a delivery chute extending therefrom, a slide, a cutting tool mounted on the slide and adapted to be moved toward and from the turret, a reciprocating blank feed ing member adjacent to the lower end of the chute, and means carried by said slide for actuating said feeding member so as to cause a blank to be inserted in one chuck when the slide is actuated to bring the cutting tool up to a blank carried by a different chuck.

10. In combination in a metal working machine, a rotary turret, a. plurality of chucks carried by said turret and adapted to receive blanks to be operated on, a cutting tool, a slide carrying said cutting tool adapted to be reciprocated to move the tool toward and from the chucks, means for feeding blanks into the chucks comprising a delivery member, a tubular member adapted to receive the blanks from the delivery memher and movable toward and from the turret, a reciprocating device extending in said tubular member, and means carried by said slide for reciprocating both the tubular member and said feeding member toward and from the turret.

11. In a. metal working machine, a rotary chuck adapted to receive blanks to be 0perated on, means for rotating the chuck, a stationary container for blanks, and means for-feeding the blanks one at a time into the chuck during the rotation of the latter comprising a device adapted to receive blanks from the delivery member, said device being arranged at the delivery' end of the delivery member and extending toward the chuck, a feeding member extending into said device, and means for reciprocating said feeding member so as to cause the same to push blanks from said device into the chuck.

1:2. In a metal working machine, a rotary chuck, means for rotating the chuck, a container for a plurality of blanks, means for delivering blanks one at a time into the chuck during the rotation of the latter, comprising a tubular member arranged at the deliver) end of the container and adapted to receive blanks from the latter, said tubular member being mounted for reciprocating movement relative to the container and be ing held against rotary movement, a delivery device extending into said tubular member. and adapted to move blanks from the tubular member into the chuck, and means for reciprocating the tubular member and the delivery member toward and from the chuck.

13. In a metal working machine, a rotary chuckadapted to receive blanks to be operated on, means for rotating the chuck, astationary container for a plurality of blanks, means for moving the blanks one at a time into the chuck during the rotation of the latter, comprising a tubular member at the delivery end of the container and mounted for reciprocating movement only so as to be movable toward and from the chuck, and 10 a reciprocating delivery rod extending into' the tubular member.

In testimony whereof, I hereunto eflix my signature in the presence of two witnesses.

- ROY H-. SMITH. Witnesses:

L. I. PORTER, A. F. Kwls.

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