US650175A - Machine for operating on ends of metal blanks. - Google Patents

Description

Patented May 22, |900. J. H. HAsKlNs. y MACHINE FOR OPERATING 0N ENDS 0F METAL BLANKS.

(Application led Aug. 4,1899.) (No Model.) 5 Sheets--Sheet l.

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No. 650,I75. Patented May 22, |900.

J. H. HASKINS.

MACHINE FOR OPERATING 0N ENDS 0F METAL BLANKS.

(Application led Aug. 4, 1899.)

(No Model.) 5 Sheets-Sheet 2.

3 h6 Il v o O' 6 L n l v :wl w o A I 'i f3 Q O Q 76,

o no' 0 wlTNEssEs; |NVENT0R we mmm; PETERS so., Punto-urna.. wAsumoroN. D. c.

. Patented may 22, |900.

J. H. HASKINS.

MACHINE FOR OPERATING 0N ENDS 0F METAL BLANKS.

5 Sheets-Sheet 3.

(Application led Aug. 4, 1899.)

(No Model.)

wlTNE'ssEs;

` INVENTOR 2 svg-Nw ATTORNEYS? N0. 650,|75. Patnted May 22, |900.

J. H. HASKINS. r

MACHINE FOR OPERATING 0N ENDS 0F VMETAL BLANKS.

5 Sheets--Shegat` 4. i

INVENTOR ATTRNEYS- (Applicatinn filed Aug. 4, 1899.)

(No Modei.)

ylESSES:

No. 650,|75. Patanted May 2251900.

JV. H. HASKINS. MACHINE FDR OPERATING 0N ENDSOF METAL BLANKS.

` (Application med Aug. 4,1899.) (No Model.) 5 Sheets-Sheet 5.

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INVENTOR ATTO RN EY 1m: mums Pneus no, mommnof. wnsmuaroN. u. c.

, Fig. 6, parts being shown in elevation.

'TD STATES Alfnflnnri OFFICE.

JAMES H. HASKINS, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO THE MCCORMICK HARVESTING MACHINE COMPANY, OF SAME PLACE.

'MACHINE FOR oPERA'lNe ONNDS oF METAL BLANK.

S3?EGIFIVCA'JTION* forming part ofLetters Patent No. 650,175, dated May 22, 1900.

Application led August 4, 189g.

To aZZ when?, it may concern.'

Beit known that I, JAMES H. HAsKrNs, a citizen of the United States, residing in Chicago, county of Cook, and State of Illinois, have invented certain newand useful Improvements in Machines for Operating on the Ends of Metal Blanks; and Ido hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. y

The invention has for its object to provide a machine for operating on the ends of metal blanks and -the like, and though it has been designed with the particular object of bevel-` ing the ends of metal rods or bars forming roller-blanks for the bearin gs of mowers, reap- 4 ers, and other agricultural machines it is not the intention to restrict its adaptation to such uses, as it is obviously capable of application to the turning, threading, beveling, or otherwise operating on the ends of all sorts of blanks.

The present invention has been designed to provide an economical machine of high power and speed for expeditiously operating on the ends of metallic blanks; and it consists in the organization and arrangement of parts hereinafter described, and whose novel features are more particularly pointed out in the claims.

The machine is illustrated in the accompanying drawings, to which reference will be made throughout the following description, and wherein# Figure 1 is a plan view of the machine. Fig. 2 is an end elevation. Fig. 3 is a side elevation with a portion of the framing broken away and the actuating means for the movable hopper-ceiling omitted to more clearly show the -parts beyond. Fig. 4 is a section on line 4 4 of Fig. 3 looking in the direction of the arrows. Fig. 5 is a detail View ot' the driving mechanism for giving to the toolcarrying spindles fast and slow longitudinal movement. Fig. 6 is a horizontal partly-sectional view on line 6 6, Fig. 4. Fig. 7 is a vertical sectional view of the carrier on line 7 7, Fig.

8 is an enlarged detail end view of the spin- Figs. 9 and 10 are detail views dle and tool.

` jof the cutting-tool.

Serial No. 726,071. (No model.)

Fig. 'll is a detail view in section of t-he safety device for holding the ejector to its slide.

The frame of the machine may be of any suitable form and construction, but is here shown as Vconsisting of a rectangular main body portion A in the form of a casing, with closed top and sides and supported by legs or uprights a ct. Below the casing and jour- 6o naled in suitable bearings o.' a. on the uprights is the main driving-shaft B, which is driven by any appropriate means, as the belt B', from some suitable source of power.

Mounted on the top of frame or casing are `two oppositely-disposed tool-carrying spinrdles S S, between which reciprocates a carrier C for positioning the roller-blanks for the m action of the tools, and adjacent to the carrier are the feed-hopper I-I and blank-ejector k, as 7o will hereinafter be described. The tool-carrying spindles S S are mounted in any usual form of bearing s s, in which they have a rotary and a longitudinal movement, the rotary' movement being derived from the shaft B through the belts e e', running over pulleys e2 e3 on the shaft B and pulleys s s2 on the tool-carrying spindles, and the longitudinal movement being obtained through the following mechanism:

J ournaled in bearings d d in the casingA is a cam-shaft D, having secured to one end a large friction-wheel D', running in frictional engagement with a small friction-wheel d2 on a shaft da, whichin turn is driven bya 85 belt D2 from the main driving-shaftB through suitable belt-pulleys d4 d5 on the` shafts B and d5, respectively. On the shaft D the actuating-cams Gr G, one for each tool-spindle, are mounted, and since they and their con- 9o nec-tions are the same in structure only one need be fully described. The cam G is provided with a groove g, in which travels a roller g', mounted on a'stud g2, secured to a slide g3, moving in suitable ways g4 in the 95 casing A. This slide is connected to the toolcarrying spindle by a yielding thrust-bearing in the following manner: A collar gsis loosely mounted on the spindle S between a fixed nut g6 and a spring g?, the opposite end loo of the spring resting against a fixed ange gS on the spindle Embracing the yielding collar g thus provided is the bifurcated arm ofV a stud g, projecting upward fromv the slide. The ange g8 may be and usually is formed as a, nut and screw-threaded onto the spindle,

1o portion lto the rapidity of rotation of such cam, and in order that the efficiency of the machinemay be increased the time given-to a cycle of movements of the tool-carrying spindles must be reduced to the minimum,"r

and this is partly secured by advancing-'the spindles rapidly until the tool begins to op- .,erate on the rod end, when they move more slowlyduring the cutting operation-and have 4a correspondinglyrapid Vmovement again? 2o. when retreating or backing od. The rapidfadvance and rapid withdrawal of the spindlesare secured from the drive-shaft B through` the intermediacy of the belt D2,shaft d3, fric-I tion-wheels d2 D', shaft D, cam G, and con- 2 5f .nections,fas has been described.V The slow j advancing movement desired during ythe cuttingA operation is obtained as follows:

Rigidly securedto the shaft-D is a wheel R, having a portion of its periphery provided' .3o with ratchethteeth r. These teeth are engaged Fby a pawl t', carriedon the end of an arm 1,. which is loosely mounted on the shaft D ad- -jacent to the wheel R. The arm I receives f vi'bratory motion from the main driving-shaft 35,A B .through a crank fn and connecting-rod J,1

and this crankis formed as a slotted disk orf head,as shown in Fig. 2, for the purpose of. adjusting the throw' of .the pawl, and, thus.v .giving greater or less motion to the wheel Rl 4o` and connected shaft D. The shat'tD, camsl G, andconnected.tool-carrying spindles re- `eeive motion from the driving-shaftB through" two sources-viz., the friction-wheels D d2 and the` wheel R and its ratchet-and-pawl connection, the former giving a rapid move-A yment to the ca-ms and connected tool-carryin g *spindles during the greater part 'of the revo-y nlutio'nof theshaft and the latter impartinga slow movement thereto during the remaindery 5ofo'fits revolution. Y During the actuation ,of

" lthe spindles through the latter of these mech-f i anisms the other of` such mechanisms mustforthe time Vbeing be disconnected, and thisis accomplished by removing from the tric-v` 55.`tion-wheel D' a portion d6 of its peripheral.' .surface, so that during the actuation of ,the` v V shaft D and cams G by the ratchet-and-pawl V` mechanism and wheel R the friction driving- ,wheel d2 has no engagement therewith, al-

* 6o, though vbothwheels continue to revolve, the

,wheel `D' being driven at this time by the;` wheel R and ratchet and pawl and the wheelf d? by the.. main driving-shaft, as before explained, until the mutilated portion of the` kfriction-wheelv D has passedlthe driver d2, when the friction-wheels rengage and a rapid movement is again given to the parts. The! finafter described. l A preferably formed ofa separate piece of hard- 4,mutilation of-wheel D' is through a slightlyless arc than that ofv the ratchet-teeth on wheel R in order that the friction-s'urfacesof` wheels D' d2 maybe broughtinto full engagement before the ratchet-and-pawl mechanism ceases to operate. When the wheel d2 l drives the shaft D, the ratchetsimply slips over the smooth periphery of the wheel R.

The feed-hopper in which the blanks are placed is secured to the main frame or casing in any; appropriate manner and is posi- Vtioned with respectgto the spindles S S, so that the blanks may be ejected endwise therefrom into a'carrier', whichdelivers them sidewise ibetween 'and into the grasp of the spindles. This hopper is formed with a sloping bottom to furnish a gravity `feed for the blanks and has sufcient width to receive the blanks crosswse, as shown in Fig. 9. At thefdelivery end the hopperlis /provided witha chute H Vof a size just sufficient to permit the entrance and passage of a single row of blanks,

V,andthe outer endrof the chute is closed by an abutment 7151. Just inside this abutment the chute has a groove h, slightly enlarged and extended crosswise, and in line with this groove the sidewall of thechute has an opening to permit the endwise removal ofthe rods one at a time by an ejector, as will be here- The iioor of the chute is cned metal h', secured in place by appropri- Aate means, such as bolts or screws h2 h2, so

that in case it becomes worn it can be readily replaced. Y

It has been found in practice that when the y floor and ceiling of the chute are both stationary the blanks or rods do not readily pass into it, for the reason that two or more blanks often get into such positions at the mouth of the chute as to form an arch, as indicated at a; Fig.4, thus electually preventing the entrance of anyof the blanks. This di'iculty lhas been overcome in the present invention by making the ceiling H2 of the chute movable lengthwise thereof, and in the preferred construction shown such ceiling is formed by one end wall of the hopper, which is pivoted `ona pin h3, journaled in the side walls'at the discharge end of the hopper. An arm lh is s'ecured on one end of this pin outside the hopper and is lconnected to a crank f on the shaft F by a connecting-rod f2. Connection between the rod f2 and the arm h4 is made by means of a-pin h5 on the arm h4, embraced by a sti'springrh, which normally holds the pin against a shoulder 717 on the rod, but which upon undue resistance to movement of arm h4 will yield to permitthe arm to remain stationary. l i A It will be'noticed that the floor of the chute I-l is fixed and that the oscillating end wall H2 of the hopper has-its lower edge extended approximately the length of the chute and forms the ceiling thereof. The eiect of this isthatthe oscillations of` the end wall H2 causea slight rolling movement of the blanks IOO IIO

in the chute, and thereby insures a free and easy movement of blanks `to the discharge end. It will also be apparent that should two or more blanks x become jammed at the entrance to the chute or get so positioned over its mouth as to form an arch and obstruct the entrance thereto the end x2 of the wall H2 in its falling or retreating movement will destroy the arch and allow the blank to fall into the chute; also, that should such an obstructing arch be formed while wall HZis withdrawn, as indicated in dotted lines, Fig. 4, the next upward or forward movement of the wall will again break the arch and allow the `blank to enter the chute. The ceiling H2 ofthe chute is made in the arc of a circle whose center is the center of pivot-stud 713.

Located opposite the space between the ends ofthe tool-carrying spindles S S, adjacent to the feed-hopper and in position to receive in its jaws the blanks from the rod-receiving groove h in the chute, is a carrier C. The function of this carrier is to receive the blanks from the chute one at a time in its jaws and carry them into position between the cutting-tools. It also holds the blanks during the cutting operation, and then removes them from between the tools and returns to its original position opposite the rodr'eceiving groove 7L to receive another blank and permit the next incoming blank from the hopper to push out the one which has been turned.

The carrier C slides parallel with the hopper in suitable ways w, forked crosswise in the frame or casing A, and consists of two members C C2, connected by V-ways w', so that they may have a limited sliding movement one upon the other. The amount of such movement is determined by a connection consisting of a pin c, secured to the upper member Cand an elongated slot c in the other member O2, in which the pin slides. Any usual devices for limiting this sliding movement may be employed, or the slot may be made in the upper member and the pin be secured to the lower member, without departing from the spirit of the invention. The lower member C2 is provided with a jaw c2 at its outer end havinga concave seat c3, said'jaw being preferably separate from the member and secured thereto by suitable means, as screws c4. The upper member is likewise provided with a jaw c5, having a concave seat c6 at its outer end. It is also preferably separate from the member C and secured thereto by screws c7. An obvious modification would be to have the jaws formed integral with the members C C2; but it is preferred to make them separate in order that they may be replaced by jaws of different sizes to accom modate blanks of various diameters or to renew the parts when they become worn or broken.

Secured to the lower member C2 is a pin l, projecting sidewise therefrom.

plete withdrawal of the carrier this pin abuts against a stop 2, projectingupward from cas- On the com- :ing inthe line of movementiof pin. The`oby ject of these stops is to insure the opening of the jaws of the carrier and then release the rods and to form a positive abutment to stop the carrier in proper position to receive new rods from the hopper and prevent the momentum of the operating-levers from moving the carrier too far rearward. The carrier is reciprocated in the ways w to brin g the blanks into the line of the tools by means of an arm fconnected at its end to the member C' by a knuckle or two-way joint f4 and carried by a shaft F, which isV journaled in suitable brackets F F2 on the side of the machinecasing. The arm f3 is Vpreferably formed as an arm of a bell-crank, the other two arms f 5 f6 of which extend toward the shaft D and carry rollers f7 f8, which bear on the cams E E', mounted on the shaft, so that as the shaft revolves the cam E throws the arm f6 down and moves the carrier C into the line of tools, and the cam E raises the arm f5 and withdraws the carrier C from the line of tools into position t-o release the blank and receive another from the hopper. Assuming the carrier C to be in its receiving position, the first effect of the cam E, acting through arms f6 and f3, is to move the upper member on the lower member to close the jaws firmly on the blank and then to move the entire carrier into position for the tools to act on the ends of the blank, which during this operation is firmly heldbetween the jaws of the carrier. On the reverse movement the first eect is to open the carrier-jaws and then withdraw the carrier as a whole from the cutting position to the linepof feedwopposite the rod-receiving groove h inthe chuteH'. Should this movement not open the carrier-jaws, the stops l and 2 contact on the carrier, reaching the limit of its rearward movement,'and the jaws arepositively opened and the iinished blank may be readily ejected by the incoming one as it is pushed out of the chute by the ejector.

The lower member of the carrier is-provided with a down wardly-projecting Hange cs, through which is threaded a set-screw c, secured in any adjusted position by the nut cw. On the inward movement of the carrier this bolt contacts with the machine-frame A at en, and thus the blank is more firmlyclamped between the jaws, and the position of the carrier to bring the blank in correct position for the action of the cutters is accurately determined.

In suitable ways y102, running transversely to the carrier on the frame or casing, there is mounted a slide K, carrying an ejector k in line with the rod-receiving groove h at the feed end of the chute. This slide is recipro' cated from the shaft D through the inter; mediacy of a groove. or track in the cam m, in which groove runs a stud l', carried by an arm L, that is pivoted at Z and connected to the slide K by a pin and slot Z2. The ejector 71: is mounted upon the slide K in thesleove IOO la-.through which it passes .and to which it is clamped by aWedge-shaped block k?, Ventering a transverse groove in the ejector.- The, block iisvertically movableA in a. hollow stud kand is heldin 4clamping position by the;setscrew k* and spring kinterposed betWeenfthe block k2 and saidl set-screw, as shown in Fig. l1. Such construction will prevent breakage of parts should the ejector meet with yundue resistance, as under such circumstances the block k2 will be forced upwardagainst the spring by the ejector, which will then slide harmlessly through4 the sleeve. A-sltop 4 on the casing limitsthe rearward movement of the ejector and restoresv or resets itin caseit has been pushed rearward through the sleeve 7c. f

f Each spindle at its tool-receivingend is yprovided with a tool-holding block O, and

both spindle and block are longitudinally bored eccentrically to their center, as shown invFigs. Band 8, for the reception ofthe tool or'cutter N, which is driven to place and securely held by a set-screw n. The tool-holding block O in the rear of the tool-seat is slot'- ted, as at O', to facilitate driving out the tool or cutter when desired. f In order that the end of the rod or bar may .be supported against the cutting action of the tool, the tool-carrying block is provided on its face with a hardened metal disk p, having a' segment or portion p removed and be- .ing secured to the face of the bloc-k any suitable means, as screws p2 p2.

A suitably-'inclined shelf T T is located in proper position to receive and carry the metal shavings or cuttings from the tools to a receptacle T2, whence they may be readily removed, and a similar incline T3 is in suitable proximity to the discharging position of the carrier to receive and direct the finished blanks from the machine.

. The roller-blanks having been Supplied t0'- the hopper, the oscillating end wall forming the ceiling of the chute directs them to the enlarged rod-receiving groove one at a time and by its oscillations prevents the entrance to the chute becoming choked, as before described. The ejector enters the rod-receiving groove through an opening inthe wall of the chute and pushes a blank therefrom out then moved toward each other to position they tion.-

and into thel jaws of the carrier. The carrier-jaws are then closed by the means described,l and the carrier moves the blank forward into the line of the tool-carrying spin-` dles, the blank being meanwhile firmly held by the jaws. The tool-carrying spindles are f idly moved endwise away from the cutting position,and the carrier-actuating means then operates to open the carrier-jaws andrto move' the entire carrier into tsretracted position opposite the rod-receiving groove h. of the chute, where the unclamped andfinishedrod is ejected by the next blank thatis pushed out of the ,chute by the ejector.

VHaving thus described my invention, what I claim as new, and desire to secure by Letters Patent, is.- .l

1. VIn a machine for operating on. .thev ends of 'metal blanks and the like, the combination of a stationary hopper,a chute leading therefrom,a carrier located at one side of the hopper and having jaws to receive'and grip the blanks between their ends for presenting them to the tool, the ends of the c blank projecting from the sides of the jaws and an ejector for delivering the blanks endwise between the jaws of the carrier.

2. In a machine for operating on the ends of metal blanks and the like, the combination of a stationary hopper, a chute leading from the hopper and having a closed end and a side delivery-opening, a revolving tool located beyond and to one side of the chute, a reciprocating carrier moving along one side Aof the chute toward' and from the tool for taking blanks from the chute and delivering them to the tool, an ejector on the opposite side of lthe chute from the carrier, said ejector being projected through an opening in the wall of the chute to push the blanks one at a time out of the delivery-opening into the carrier, and said carrier being provided with jaws to receive and grip the blanks between their ends and present them to the tool.

3. In a machine for operating on the ends of metal blanks, and the like, the combination of a hopper, a chute leading therefrom and having a closed end and a side deliveryopening, a revolving tool located beyond and to one. side of the chute, a carrier for presenting the blanks to the tool,'said carrier moving along one side of the chute toward and from the tool, an ejector on the opposite side of the chute adapted to be projected through an opening in the wall thereof and to push the blanks one at a time out the delivery-opening on the opposite side, and mechanism for operating the carrier to seize the blanks between their ends and carry them forward and hold them during the action of the tool. l

4. In a machine for operating on the ends of metal blanks, and the like, the combinal tion of a hopper, a chute leading therefrom and having a closed end and a side deliveryopening, a pair of revolving tools, a carrier having jaws to receive and grip the blanks between their ends for presenting them between the tools, said carrier moving along one side of the chute, and an ejector on the opposite side, said ejector being projected into the vchute and operating to push the blanks one at a time out the delivery-opening on the opposite side into the carrier.` j

IOO

IIO

IIS

5. In a machine for operating on the end's of metal blanks and the like, the combination of a hopper, and a chute leading therefrom having a groove at its lower end to receive individual blanks, a delivery-opening in one wall of the chute in line with said groove, an abutment closing the outer end of the chute, and a movable wall forming the ceiling of the chute. I

6. In a machine for operating on the ends of metal blanks and the like, the combination of a hopper, a chute leading from the hopper, adapted to receive the blanks sidewise therefrom, and having an abutment at its lower end and a side delivery-opening in the wall of the chute in line with said lower end through which the blanks are ejected endwise, and a movable wall forming one side of the chute and cooperating with the abutment to close lthe lower end ot' the chute.

7. In a machine for operating on the ends of metal blanks and the like, the combination of a hopper, a chute leading from the hopper, adapted to receive the blanks sidewise therefrom and having a groove and an abutment at its lower end, a side delivery-opening in the Wall of the chute in line with said groove through which the blanks are ejected endwise, and a movable wall forming one side of the chute and coperating with the abutment to close the lower end of the chute.

8. In a machine for operating on the ends of metal blanks and the like, the combination of a hopper, achute leading from the hopper adapted to receive blanks sidewise therefrom and having a groove at its lower end, a side delivery-opening in the wall of the chute in line with the said groove through which the blanks are ejected endwise, an ejector adapted to move endwise in said groove, and a movable wall forming one side of the chute.

9. In a machine for operating on the ends of metal blanks, and the like, the combination of a hopper having a pivoted end wall, a chute leading from said hopper and having a fixed iioor, the pivoted wall of the hopper having an extension of the Width of the chute to form the ceiling of the same, and means for vibrating said ceiling lengthwise the chute.

10. In a machine for operating on the ends i of metal blanks and the like, the combination of a hopper and a curved chute leading therefrom, the bottom wall of which is removable and provided with an enlarged groove to receive individual blanks, an abutment in the bottom wall closing the outer end of the chute, a pivoted end wall having a portion forming the ceiling of the chute curved to correspond to the curve of the bottom wall.

11. In a machine for operating on the ends of metal blanks, and the like, the combination of a pair of oppositely-disposed, rotating, toolcarrying spindles, means for simultaneously moving both of said spindles endwise toward each other rapidly to grasp the blank to be operated on, means for continuing said endwise movement of both of said spindles ata slower rate during the operation of the tools, and means for causing both of said spindles to simultaneously rapidly recede from each other at the completion of their operation to release the blank.

12. In a machine for operating on the ends of metal blanks, and the like, the combination of a rotating tool-carrying spindle, friction-gearing for moving the same rapidly endwise until the tools reach the cutting position,

and positively-acting mechanism for continuing a slow endwise movement of-the spindle during the operation of the tool.

13. In a machine for operating on the ends of metal blanks, and the like, the combinationof a rotating tool-carrying spindle, a slide for moving the same endwise, a shaft carrying a cam for moving the slide, friction-gear ing for rapidly driving said shaft during a portion of its revolution, and positively-acting mechanism for slowly driving the sha-ft during the remainder of its revolution.

14. In a machine for simultaneously operating on both ends of metal blanks and the like, the combination of opposing rotating tool-carrying spindles, slides for moving said spindles endwise toward and from each other, a shaft carrying cams moving said slides in opposite directions, frictional driving mechanismfor imparting rapid motion to said shaft during a portion of its revolution, and positively-actingmechanism for imparting a slow motion to said shaft during the remainder of its revolution.

15. In a machine for simultaneously operating on both ends of metal blanks and the like, the combination of opposing rotating tool-carrying spindles, slides for moving said spindles endwise toward and from each other, a shaft carrying cams moving said slides in opposite directions, frictional driving mechanism for imparting rapid motion to said shaft during a portion of its revolution, and positively-acting mechanism for impart-ing a slow motion to said shaft during the remainder of its revolution, and provisions for rendering one of said mechanisms inoperative during the operation of the other.

16. In a machine for operating on the ends of metal blanks and the like, the combination of -a rotating tool-carrying spindle, a slide for moving thesame endwise, frictional gearing for imparting rapid movement to the slide, positively-acting mechanism for imparting a slow movement to the slide, and provisions for disengaging the frictional gearing during the operation of the positively-acting mechanism.

17. In a machine for operating on the ends 'of metal blanks and the like, the combination of a rotating tool-carrying spindle, a slide for moving the same endwise, a shaft carrying a cam for moving the slide, a frictiongear on said shaft having a portion of its frictional surface removed, a friction drivingwheel engaging said gear, mechanism for conti nuing the motion of the said shaft when the IOO IIC)

4passing the driving-wheel.

Acarrying a cam for moving'the slide, a fricperiphery cut away, a friction driving-wheel 'mechanismlfor continuing the rotation of thef shaft When' the cut-away portion of the gears 'tion of arotating tool-carrying spindle, a 'Sli'defor moving the same endwiseja shaft v"carrying a cam for Vmoving the slide, a I fricti'o-gear on the shaft havinga portion 'of its 2o` rocatngf pawl engaging the ratchct-teeth,` vsaid segment of teeth and cut-away portion ratchet the gears are ont of engagement.

blanks,and the like, the combination with a chute, of a blank-ejector adapted to pass into 19. In a machine for operatingon the "ends of metal blanks, and the like, the combina-i periphery cut away, a friction driving-wheel engaging said gear, a disk on the shaft ha'v-l ing a segment of ratchet-teeth, and' a recip-'l of the friction-gear being relatively arrangedI so that when the shaft is rotated by the gearj the teeth are notin a position to be engaged by the pawl, and when the pawl engages the '20. In av machine for operating on metal the'chnt'e from one side, positively-operating mechanism for actuating said ejector, a yield- 6 o esogm ing connection between the ejector andits operatinginechanisn and a stop to reset the ejector. v l o l T21. In a' machine forl operating on thev ends of metal'blanks, andthe like, the combinaltion with a chuteof a blanko-ejector adapted -to 'pass into-the chute from 'one side, said ejector-consisting of a rodk, the sleeve k embracing said rod, and the spring-pressed clamping-block k2 yieldingly holding the rod 'against endwise movement.

22. In'a machine foroperating' on the ends of met-al blanks, and the like, the combination with a chute, of a blank-ejector adapted -to pass, in'tothe chute from oneside, said ejector consisting of the rod lo, the sleeve k' the spring-pressed block 7a2 yieldingly holding the rod against endwise movement, and the xed stop 7a4 to restore therod to normal position after it has been moved. i

23. In a machinefor operating on the ends of metal blanks and the like', the combination of a hopper, having one of its end walls pivoted so as to vibrate, an armen the pivot-pin of said wall, a rotary shaft having a crankarm connected by a pitman with the arm on the walls pivot-pin, and a yielding` connec- `tionbetween the 'pitman and the arm.

In testimony whereof I afx my Signature in presence of two witnesses. l

JAMES H. HASKINS.

W'itnesses:

HERBERT F. PERKINS, CHAS. W. ALLEN.

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