US631677A

US631677A - Machine for cutting circular disks for buttons or the like.

Info

Publication number: US631677A
Application number: US59994496A
Authority: US
Inventors: Dilman Brubacher Shantz
Original assignee: Individual
Current assignee: Individual
Priority date: 1896-07-20
Filing date: 1896-07-20
Publication date: 1899-08-22
Anticipated expiration: 1916-08-22

Description

No. 63I,677. Patented Aug. 22, |899.

D. B. SHANTZ.

MACHINE FOB CUTTING CIRCULAR DISKS FDR BUTTONS 0R THE LIKE.

(Application led July 20, 1896.`|

(Nn Model.) 3 Sheets-Sheet l.

YWZZHQ/eg {WIM/Iam@ www y) f2 w55 Patented Aug. 22, |8799.

D. B. SHANTZ.

MACHINE FUR CUTTING CIRCULAR DISKS FOR BUTTONS 0R THE LIKE.

(Application led July 20, 1896.)

3 Sheets-Sheet 2.

(No Model.)

Patented Aug. 22, |899.

No. 63I.677.

D. B. SHANTZ. MACHINE FOR CUTTING CIRCULAR DISKS FOR BUTTONS CR THE LIKE.

(Application filed July 20, 1896.|

3 Shees-Sheet 3.

(No Model.

UNrTED STATES PATENT FFICE.

DILMAN BRUBACHER SHANTZ, OF BERLIN, CANADA.

MACHINE FDR CUTTING CIRCULAR DISKS FR BUTTONS OR THE LIKE.

SPECIFICATION forming* part of Lettersljatent N0. `631,677, dated August 22, 1899.

Application led July 20, 1896. Serial No. 599,944. (No model.)

ting and formation of disks which are subsequently formed into buttons.

My invention has for its object particularly to improve machines of this character which are adapted to work upon stock of a denise and hard nature-such as vegetable ivory, horn, bone, and pearl-shells-and some of the features of myinvention are particularly adapted to the improvement of machines adapted to the cutting of button-blanks from the ivory-nut.

In order that my invention may be the better understood, I have illustrated two embodiments thereof in the accompanying drawings. It should be understood, however, that I do not thereby intend to limit my invention in its useful applications to the particular mechanisms which I have illustrated.

In the said drawings, Figure l is a perspective view of a machine embodying my invention and particularly adapted for the cutting of button-blanks from vegetable-ivory stock. Fig. 2 is a sectional perspective View through the machine. Fig. 3 is a side elevation of the preferred arrangement of cams'for operating and properly timing t-he several movements of the machine shown in Fig. 1. Fig. 4 is an enlarged sectional perspective detail of part of the placing mechanism. Figs. 5 and 6 are detail perspective views, enlarged, of the jaws of the holding or gripping rods employed in the' machine represented in Fig. l. Fig. 7 is a perspective View of a piece of vegetableivory stock from which has been cut the disklike button-blank illustrated in Fig. 8. Fig. 9 is a perspective view, partly in section, of another'. form of my invention. Fig. 10 is an enlarged sectional perspective View of the gripping and cutting vdevices of the machine .shown in Fig. 9. Fig. 11 is an elevation of the form and arrangement of the cams and of the levers which they operate employed in the machines illustrated in Fig. 9. Fig. 12 is a perspective View of a piece of vegetable-ivory stock, and Fig. 13 is a sectional perspective View of the blank cut therefrom by the lastreferred-to machine.

I will first describe the machine illustrated in Figs. 1 to 6.

A represents the bed of th-e machine, and B B the bearing-standards for the spindle of one cutting-tool, and B B' the bearing-standards for the spindle of the opposite cuttingtool.

C C designate the cutter-spindles, and c c the cutting-tools, which are secured to the inner or adjacent ends of such spindles. It will be understood that the particular form or style of cutters employed will.depend upon the article being formed, those illustrated in the drawings being adapted to cut out blanks such as illustrated in Fig. 8.

D D are the driving-pulleys, secured to the cutterspindles,and E E are the driving-belts.

In the form of machine being described the cutter-spindles C C are hollow longitudinally, and through them and the cutters extend the holding or gripping rods Ff F'. These rods are provided at their inner ends with grips ff', Figs. 5 and 6, one of which, f', is preferably enlarged, concave at its end, and provided with a serrated circular edge. These gripping devices operate to hold the piece of stock while the tools are cutting the blank therefrom.

It it well known that the grain of the ivorynut is the finest and of the most dense and uniform texture near the outer surface of the nut and that as the center of the nut is approached cracks and fissures are present. It

is therefore of the utmostimportance in cutting blanks for buttons from vegetable-ivory stock that the cutting should be so performed as that the exposed face of the button shall be cut from the part of the nut close to the outer edge or surface, and the nearer vto the surface the cut is made the better is the quality of the button produced. Heretofore the proper and most advantageous cutting of.

the button-blank in the manner just referred to has depended very largely upon the individual skill of the workman in properly placing the piece of stock so as to secure the most advantageous cut, the least possible portion of the stock being removed from the outer surface thereof consistent with producing a smooth surface, while the main cutting action to reduce the blank to the proper thickness was caused to take place on the opposite side of the blank. One of the purposes of my invention has beenl to produce a machine by which I can insure such a cutting or dressing of the button-blank as has been referred to. This I am enabled to accomplish by a peculiar construction and arrangement of the devices which hold or grip the material while it is being operated upon by the cutter. I make 011e of the holding devices perfectly rigid, so that it has a fixed immovable relation to the cutters when they come into operation upon the material, and I make the face or portion of such holding device which engages with the material so that it grips or engages with the material in such a manner as to prevent its turning under the action of the cutters. In this specifieation I employ the terni grip to designate a holder of such a character as will prevent the hard material which is employed in the making of buttons from turning under the action of the cutters. The rigid grip is preferably made adjustable, so that its position, which is fixed and immovable during the cutting operation of the machine, may be varied or adjusted relative to the cutters. It will be seen that by this arrangement the operator has merely to place the piece of stock securely against such fixed grip with the assurance that when the cuttingtool comes into operation the extent to which it cuts into the material will be governed by the position of such fixed grip or holder.

In the forni ot' machine illustrated in Figs. l to 6, Ff represent the fixed rigid nonrotary grip or holding device. rIhe outer end of the rod F' is screw-threaded and extends through a cross-bar F2, which is supported 011 rods F3 F3, suitably secured to the frame of the machine. Clamping-nuts upon the screwthreaded portion of the rod F and bearing upon opposite faces of the cross-bar lf2 constitute means whereby the grip f may be adjusted relative to the cutter c'. The outer ends of the rods F3 may, if desired, be screwthreaded, as represented in the drawings, and clamp-nuts thereon may be employed for effecting an adjustment of the rigid grip in lieu of the nuts upon the rod lf". Itind that the best results are obtained when the end of the grip j" which engages with the material is of as large a size as is consistent with the use of the particular cutter being employed and when its engaging end is so constituted as to secure a very firm grip upon the steek, as illustrated in Fig. G. The opposing grip fis movable toward and from the stationary grip f. I have shown and will presently describe means whereby the said movable grip is automatically operated.

. It will be understood that the pieces of stock may be placed between the grips by the fingers of the attendant and that the ad vantage of having every piece of material properly positioned to secure the most advantageous eut will be secured without the attention and skill of the attendant being directed to that particular object. I prefer, however, to provide the machine with automatic means which will serve to place the pieces of stock or material to be operated upon between the grips or holdingrods. Such means consist of a carrier having fingers which grasp and hold the article and mechanism which moves the carrier into position to place the article between the grips. In the form of myinvention herein disclosed the carrier for the placing-fingers is pivoted, so that it moves to place the articles upon the arc of a circle, and the pivot about which it turns is so disposed that the carrier swings in a vertical plane, 'moving upward away from the grips and downward to carry the piece of stock into posi-tion to be grasped by the grips.

The pieces ot the ivory-nut from which the blanks are eut are very irregular in shape, and it is of the utmost importance that from these irregularly-shaped pieces of stock the blanks should be eut with great precision, as the Agrade of the button finally produced will often be determined by the degree of care exercised in cutting the blank from the stock.. By reason of these irregularities in shape incident to the stock employed it has up to this time been found impraeticable to employ a placing device the fingers or grasping parts of which engage with the peripheral edges of the stock, as when the grasping-lingers are so arranged it has been found impossible either to place the pieces of stock in the placing device with such accuracy as is required or to insure the pieces of stock being accurately held and delivered to the grips after they have been properly placed. I have overcome the difficulties which have heretofore rendered an automatic placing device impraeticable for use in a machine adapted to eut ,button-blanks from vegetable-ivory stock by so disposing the fingers or grasping parts that they engage with the opposite faces of the stock, as distinguished from engaging with the peripheral edges thereof-that is to say, they engage with the same faces as do the grips and the cutters.

This construction I have found to be most satisfactory, as it permits the attendant ol' the machine to place the piece of nut very carefully and accurately in the placing device, and when the placing-fingers come into engagement with such piece of material they do not tend to shift it or displace it, but deliver it with accuracy to the grips. The i'esult is that I can use successfully an automatie placing device in a machine for working on vegetable-ivory stock. Referring to the specific embodiment of this part of my invention illustrated in the drawings, G represents the carrier, in which are supported IOO IIO

vwhich engage with the piece of stock or material to ybe operated upon, are -bent downward and are preferably spoon-shaped, as represented in Fig. et. Each of the fingers is held in a forward position by a spiral spring g1", connected at one end to the carrier and at the other to the finger.

g4 g4 are detents pivoted on a pin g5 in a lug G', attached to or forming part of the carrier G. The upper ends of these detents are curved, as shown, and the lower ends enter recesses G2 in the outer ends of the fingers g3. (See Fig. 4.)

b' represents a rocking detent pivoted on a pin f2, mounted in a bracket h3, carried by some stationary part of the machine. The detent b' hangs loosely and has an inclined straight lower edge and a curved rear side, which is designed to come in contact with a stop-pin b4 when the carrier is moved, so as to bring the detents g4 into engagement with the lower inclined straight side of the detent b'. When the carrier is swung upward, the effect of the detents g4 coming into engagement with the detent b' is to throw the fingers g3 rearward.

G3 G3 are arms mounted in the carrier G and shaped to constitute a pair of placingfingers, which coact wit-h the lingers g3 in holding the material when being placed between the grips. The arms G3 are supported in bifurcated lugs G4 G5 and are arranged on opposite sides of the carrier-G. The arms G3 should be free to have a certain amount of movement, in order that they may yield to accommodate pieces of stock of different sizes and` shapes. I therefore prefer to form them with holes G3 G7, which are larger in diameter than the pins g(i Q7, which pass through such holes and operate to secure the arms in the lugs G4 G5.

g8 and g9 are springs connected with the arms G3 and with the carrier G and arranged to hold the arms yieldingly and with their forward ends G3, which constitute the placingfingers, in proper relation to the ends g3 of the gripping-fingers g3.

When the carrier is raised or moved, so as to carry the placing-fin gers from between the grips, the fingers g2 are separated from the fingers G3, when a blank or piece of stock 2, such as shown in Fig. 7 and in dotted lines in Fig. l, may be accurately placed by the attendant between the placing-ngers, which when they come together will grasp the material from opposite sides in the manner hereinbefore set forth, and when the carriage is again properly moved the fingers will operate to place the stock accurately between the.

grips.

I will now describe means whereby the placing mechanism is automatically operated.

H represents a rod supported in oifsets B2 from a portion of the standards B'.

I is a collar secured to the rod H by a setscrew t', and J is a link connecting the carrier G with such collar. I prefer that the link J should be provided with a slot j and that the pin i', which unites the link with the collar I, should pass through such slot and that a spring j' ,should be mounted in such slot and bear against the pin. A yielding connection is thus interposed between the carrier and its driving mechanism, which operates to prevent straining or breaking of parts. The tension of the spring j' may be regulated by a set-screw jz.

H2 represents a spiral spring encircling the rod H and situated between the stationary offset B2 and an arm K, carried by the rod H. This spring tends to move the rod H into such position as to swing the carrier into position with the placing-fingers between the grip-rods.

H3 represents a connecting-rod interposed between the rod H and a lever L. The lever L is provided with a friction roller or contact Z,with which engages a cam M', mounted upon the main cam-shaft 3 of the machine. Another cam M, mounted upon the same shaft, is arranged to engage with a wing L', secured to the rod H3. The cam-shaft 3 revolves in the direction indicated by the arrow in Fig. 3, and when thus moved the cam M, operating upon the wing L', insures that the rods H3 and H shall be moved in the direction of the arrow, Fig. l, and consequently the carrier moved into position to place the article between the grips. The spring H2 would ordinarily effect this movement of the carrier; but I prefer to provide positively-operating means in addition to the spring. The cam' M', acting upon the roller Z, operates to move the carrier and placing-fingers in a direction opposite to that. just described-that is, away from the grips and cutters. yThese movements of the placing-fingers are repeated regularly, so that the blanks may be fed into position at exactly the proper times to suit the movement of the other parts of the apparatus. In order to limit the movement of the carrier and cause itto come to rest in exactly the right position relative to the grips and cutters, I provide a stop 72.', which may be of any suitable construction, a rod with which the movable carrier engages being represented in Fig. l. l

I will next describe the mechanism which I have shown for effecting the movements of the cutter-spindles, whereby the cutters are brought into engagement with the material.

The spindle C is provided with a groove c2 near its outer end, and with this engages the forked end of a plate 7c, secured to the arm K, which in turn is carried by the rod H. The

upper end of the arm K may be supported by and have movement uponV the gripping-rod F, as represented.

IOO

It will be readily understood that with an arrangement such as described when the cutter-spindle is moved to bring the cutting-tool into engagement with the stock the carrier is simultaneously moved so as to carry the placing-fingers away from between the grips and the cutters and that when the cutter is moved in the opposite direction the placingfingers move into position between the grips and cutters.

The other cutter-spindle C' is provided with an annular groove c2, with which engages the forked end of a plate 76', carried by an arm K'. The arm K' is carried by a sliding rod H4, mounted in offsets B2, forming part of the standards B'.

h2 is a collar secured to the rod H4, and h2 is a spiral spring encircling the said rod and arranged between the collar h2 and one of the offsets B2. The spring h2 tends to move the rod Hu1 so as to retract the cutter c'.

N is an arm secured to the rod Il", and O is a rod connecting the arm N with a lever P, which latter carries a friction-roller p, designed to be operated upon by the cam Q on the shaft 3.

R represents a wing secured to the rod O and arranged to be acted upon by the cam R'. As will be understood, the cam Q operates to move forward or into cutting position the spindle and its cutter, and the cam R' operates to positively move the parts in the opposite direction.

As has been heretofore stated, the grip f and its carrying-rod F are longitudinally movable toward and from the stationary grip f', and I will now describe a mechanism for automatically reciprocating the grip f. This grip is advanced-that is to say, moved toward the stationary grip-after the placinglingers have been moved to carry the article into position between the grips and before the cutters come into operation, so that the grips take the piece of stock or material to be operated upon from the placing-fingers, which are moved away during the cutting operation, and securely hold it during the cutting operation, after which they separate to release the blank or piece which has been cut from the stock. The outer end of the griprod F is flattened, as at f2, and provided with a series of holes f3.

S designates a lever, which may be of double strap-metal form, pivotally connected at its upper end to the flattened end of the griprod F' at s", at its lower end pivotally connected to a reciprocating bar V at s', and between its ends fulcrumed to a sleeve T at the point s. The sleeve T, which carries the fulcrum of the lever S, is loosely supported upon a rod U, which is suitably supported in the framework of the machine. The rod U is screw-threaded, as represented in Fig. 2, and upon the screw-threaded part thereof is mounted a sleeve or hollow nut T', which constitutes an adjustable abutment, against which the sleeve T is held by a spring U2.

This spring encircles the rod U and is interposed between the sleeve or collar T and a collar or shoulder U', secured to the rod U. The bar V is pivotally connected to 'a lever V', which carries a friction-roller that is arranged to be operated upon by a cam V2 upon the cam-shaft A spring U8 is arranged so as to maintain the friction-roller of the lever in proper engagement with the cam V2, as will be understood without detailed explanation. The cam V2 operates to throw or move forward the movable grip at the proper time, and the spring U3 retracts the grip when the cam has so moved as to permit such action. The spring U2 operates as a yielding member between the grip fand the cam V2, which moves it forward and operates to regulate the force with which the movable grip holds the stock against the fixed or rigid grip, and also operates to prevent breakage or undue strain should a piece 0f stock of unusual thickness be gripped, and also permits the proper setting of the grip f to suit the thickness of the stock being used. The adjustable abutment T', against which the movable sleeve T, carrying the fulcrum for the lever S, bears, provides the means for adjusting the grip f.

In Figs. 9 to ll I have represented a form of machine somewhat different from that already described. It is, however, in many of its parts similar to the machine shown in the other views, and I have employed the same letters of reference to designate the parts of the machine which are Vsimilar in the two constructions. Thus the placing mechanism and the mechanism for feeding the cutters toward each other is similar in the two forms of machine. The grips or holders for the materials while being cnt are diierent, however, in the two forms of machine, the grips represented in Figs. 9 and 10 being particularly adapted for use in a machine intended to cut a blank of the form indicated in Fig. 13, which differs from that shown in Fig. 8 in that the dressing or cutting of the blank is carried forward to an extent considerably beyond that indicated in Fig. 8. In this form of machine the grips instead of passing axially through the cutters are exterior to the cutters, the cutters working through the grips instead of the grips working through the cutters, as represented in Fig. 2. Each grip is made of two parts or jaws, as indicated in Fig. 9, and these are preferably separated suliiciently to permit the placing-fingers to move into position to carry the material between the grips. The stationary grip lV is composed of two pairs of jaws yw w, each jaw being formed with a concave serrated gripping edge 102. These jaws are secured to a bracket or suitable support W', carried by the frame of the machine. The jaws may be cut away, as at w', to permit of the proper movements of the placing-fingers g2. The movable grip X is preferably formed with two jaws X' X', which are supported in standards Y,

IIO

in which they are arranged to slide. y represents pins carried bythe movable grips X and extending outward through slots y in.

tracted or moved away from the stationary grip by a cam x5, which acts upon the-levers Z through the following train of devices-viz. the friction-rollers x4, carried by the lever :153,

the link x2, connecting this lever with another' lever and a link Qc, connecting the lever with the levers Z. y v

In the form of machine just described it will be observed thatthere is onegrip which is`nonrotary and has 'a fixed position with reference to the cutters and that the other grip is movable toward such iixednon-rotatable grip in these respects as well as in others which have been already mentioned, being similar to the machine first described.

' What I claim, and desire to secure by Letters Patent, is

l.' In a button-turning machine, in combination, the revolving cutting-spindles, the stationary fingers, and the slid'able fingers, substantially as set forth.

' 2,. In a machine for turning buttons, in combination, the revolving. spindles, the pivoted carrier, the stationary fingers flexibly held thereto', and the slidable lingers, with means for positively retracting the same, substantially as set forth.

3. @In a machine of the c lass described, the combination with the gripping-jaws, one of which is movable lengthwise to and from the other, of a carrier pivoted on the frame of the machine, holding-fingers to place the blank in position, means for raising the carriage, and a stop for limiting its downward movement, substantially as set forth.

4t. In a machine of the class described, the combination with the gripping-jaws, one of which is movable lengthwise to and from the other, of a carrier pivoted on the frame of the machine, longitudinal fingers supported in a gnideway in the top of the carriage and having bent lower ends, arms extending outfrom the carrier in front of the bent ends of the fingers, and means for drawingthe bent ends of the lingers back upon the carrier being raised, substantially as set forth.

5. In a machine of the class described, the combination with the gripping-jaws, one of which is movable lengthwise to and from the other, of a carrier pivoted on the frame of the machine, longitudinal fingers supported in a guideway in the top of the' carrier, and having bent lower ends, arms extendingout from the carrier in front of the bent ends of the fingers, rocking detents suitably pivoted at the rear-of the carrier, and' having theirfends engaging with the fingers, and means for tilting such detentson their pivots when the carrier is raised, substantially as set forth.

6. In a machine of the class described, the

combination with the gripping-jaws, one of which is movable lengthwise to and from the other, of a carrier pivoted on the frame of the machine, fingers supported ina guideway in the top of the carrier, and having bent lower ends, arms extending out from the carrier in front of the bent ends ofthe fingers, rocking detents suitably pivoted at the rear of the carrier, and engaging with the fingers, and an engaging deten t, pivotally supported upon brackets secured to the frame of the machine, and having a limited movement, substantially as set forth.

7. In a machine of the class described, the combination with the gripping-jaws, one of which is movable lengthwise to and from the other, of arcarrier pivoted onthe frame of the machine, longitudinally-adjustable placingfingers supported in suitable guideways, and coacting flexibly-held arms having theirouter ends extending beyond the ends of the longitudinally-adjustable fingers, substantially as set forth.

8. In a machine of the class described, the combination with the gripping-jaws, one of which is movable lengthwise to and from the other,vof a carrier pivoted on the frame of the machine, longitudinally-adjustable placingngers supported in suitable guideways, and coacting arms having curved outer ends extending beyond the longitudinally-adjustable iingers, lugs for supporting such arms, pins extending through enlarged holes in the arms land into the lugs, and laterally and longitudinally connecting springs to each arm and the carrier, substantially as set forth.

9. In a machine of the class described, the combination with the gripping-jaws, one of which is movable lengthwise to and fromthe other, of a carrier pivoted on the frame of the 'macl1ine, coacting fingers and arms, means for adjusting them to andfrom each other, a

IOO

IIO

rod supported in suitable bearings in the machine-frame, a link pivotally connected at one end with the carrier, and provided with a slot at the other end, a pin passing through said slot and connecting the link with the said rod, and means for imparting a longitudinal reciprocating movement to such rod, substantially as set forth. f

10. In a machine of the-class described, the combination with the gripping-jaws, one of which is 'movable lengthwise to and from the other, of a carriage pivoted on the frame of the machine, coacting fingers and arms, means for adjusting them to and from each other, a rod supported in suitable bearings in the machine-frame, means for flexibly connecting the rod to the carrier, a spring situated on the rod between one of the bearings and a fixed collar on the rod, and means for imparting a longitudinal reciprocating movement to such IZO rod in the opposite direction to that in which the spring forces the rod, substantially as set forth.

ll. In a machine of the class described, the combination with the gripping-jaws, one of which is movable lengthwise to and from the other, of a carrier pivoted on the frame of the machine, coacting fingers and arms, means for adjusting them to and from each other, a rod, II, supported in suitable bearings in the machine-frame, means for flexibly connecting the rod to the carrier, a spring situated on the rod between one of the bearings and a fixed collar on the rod, and the rod H3 pivotally connected to the rod H, the lever L, the roller Z, and the cam M' all arranged substantially as set forth.

l2. In a machine of the class described, the combination with the gripping-jaws, one of which is movable lengthwise to and from the other, of a carrier pivoted on the frame of the machine, coacting fingers and arms, means for adjusting them to and from each other, a rod, H, supported in suitable bearings in the machine-frame, means for flexibly connecting the rod to the carrier, a spring situated on the rod between one of the bearings and a fixed collar on the rod, and the rod H3 pivotally eonnectedto the rod II, the lever L, the roller Z, the cam M', and the wing L', and the cam M, all arranged substantially as set forth.

13. In combination, the cutter-spindles, a longitudinally-reciprocating rod, the connection between said rod and cutter-spindle, the cams, the pivoted lever having a bearingroller with which engages one of the cams, the rod connecting said reciprocating rod to said lever and the wing arranged on said connecting-rod and designed to bearon the other of said cams, substantially as set forth.

14. In combination, the cutter-spindles, the pair of gripping-jaws, means for advancing and retracting one of said Ijaws, and means for automatically feeding the blanks between said jaws, said means oscillating vertically in a plane extending.longitudinally of the machine, substantially as set forth.

l5. The combination with the frame, the cutter-spindles, the gripping-jaws, and means for advancing and retracting one of said jaws, comprising the rod U, having a threaded portion, the sleeve T loose on said rod, the lever S pivotally connected to an extension of said jaw and to said sleeve T, the sleeve T' threaded on said rod, the spring for pressing the sleeve T against the sleeve T, the spring U3 interposed between said lever and the frame, the link connected to the said lever, the lever V pivotally connected to the opposite end of said link, and the cam acting thereon, substantially as set forth.

1G. In a machine for turning buttons and like articles, in combination, the hollow revolving spindles and cutting-tools, non-rotatable rods extending through them, grips .or jaws attached to the inner ends of such rods,

'one of said rods and grips being stationary and capable of longitudinal adjustment, and the other derivinga predeterminedreciprocal movement, substantially as set forth.

17. In a machine of the class described, in combination, the hollow, revolving spindles and cutting-tools, the non-rotatable rods, the stationary grip, the movable grip, and means for adjusting and automatically operating said movable grip, substantially as set forth.

18. In a machine of the class described, the hollow, revolving spindles and cutting-tools, the non-rotatable rods, the stationary grip, and the movable grip, in combination with means for automatically delivering the blanks between the grips, substantially as set forth.

19. In combination, the cutting-tools, the stationary and movable grips, the flexiblyheld, temporary placing-fingers, the adjustably-held, temporary placing-fingers, and means for retracting the placing-fingers when the carrier is raised, substantially as set forth.

20. Inamachineof the character-described, the combination of a hollow revolving spindle and a cutting-tool, a non-rotatable, rigid, gripping device arranged within the said hollow spindle and cutting-tool, and a movable grip, having means to operate it toward and from the rigid grip, substantially as set forth.

2l. In a machine of the class described, the combination of a pair of cutters adapted to act upon opposite sides of the material, a stationary, rigid grip fonengaging with one side of the material, a grip movable toward and from the stationary grip for engaging with the other side of the material, and means for adjusting the stationary, rigid grip, substantially as set forth.

22. In a machine of the class described, the combination of a pair of cutters adapted to act upon opposite sides of the material, a rigid grip for engaging withone side of the material, a grip, movable toward and from the rigid grip, for engaging with the other side of the material, and means for holding the movable grip in engagement with the material with a yielding pressure or force, substantially as set forth.

23. In a machine of the characterdescribed, the combination of the rotary cutters adapted to act on opposite'sides of the material, a pair of grips for engaging with and holding the material while the cutters are acting thereon, one of the said grips being movable toward and from the other, means for moving the said grip, and mechanism whereby the extent of movement cf such grip may be adjusted or regulated, substantially as set forth.

2l. In a machine of the class described, the combination of the eu tters adapted to act upon opposite sides of the material, grips for holding the material while the cutters are acting thereon, and automatic means for placing the material between the grips, having parts which engage with the material and grasp it, said parts being arranged to engage with the IOO same faces of the material as do the grips, substantially as set forth.

25. In a machine of the class described, the combination of the cutters adapted to act upon opposite sides of the material, grips for holding the material while the cutters are acting thereon, means for separating the grips and for bringing them close together, a carrier having parts which engage with and grasp the pieces of material, and automatic means for moving the said carrier, whereby the pieces ot' material grasped thereby are carried between the grips, the critters, the grips, and the grasping parts of the carrier being arranged to all engage with the pieces of mate rial from the same sides or faces, substantially as described.

26. In a machine of the class described, the combination of the revolving spindles and cutting-tools, a stationary, rigid grip, a grip movable toward and from the said stationary grip, and automatic means for delivering the pieces of material between the said grips, substantially as set forth. t

27. In a machine of the class described, the combination of the revolving spindles and cutting-tools, a stationary, rigid grip adapted to engage with one face of the material while the cutters are acting upon such material, a movable grip for engaging with the opposite face of the material, and automatic means, having parts which engage with the aforesaid opposite faces of the material and thereby grasp it, and which means are arranged to place the material between the aforesaid grips, substantially as set forth.

2S. In a machine of the class described, the combination of the revolving spindles and cutters, grips for holding the material while the cutters are acting thereon, a movable carrier,

- fingers mounted in such carrier, andarran ged to grasp the material, means for moving the carrier so as to deliver the material carried by the said ngers between lthe cutters, and for retracting the carrier, and means for separating the fingers to permit pieces of material to be placed between them when the carrier is retracted, substantially as set forth.

29. The combination of a pair of rotary spindles and cutters, one of the spindles and cutters being hollow, a stationary, rigid grip extending through said hollow spindle and cutter, and an opposite, movable grip, substantially as set forth.

30. The combination of a pair of rotary spindles and cutters, one of the spindles and cutters being hollow, a stationary, rigid, non-rotary grip for engaging with one face of the material7 and a movable grip device passing through said hollow spindle and cutter, and

adapted to engage with the opposite face of the material, substantially as set forth.

3l. In a machine of the class described, the combination of a pair of hollow, rotary spindles and cuttingtools,a stationary, rigid, nonrotary grip device extending through one of the said hollow spindles and cutting-tools, a movable grip device extending through the other spindle and cutting-tool, and means adapted to reciprocate the movable grip toward and from the stationary grip, substantially as set forth.

32. In a machine of the class described, the combination of the cutters, a stationary grip for engaging with one side of the material while being acted upon by the cutters, a grip for engaging with the other side of the material, and movable toward and from the stationary grip, means for so moving the movable grip, and a spring through which the said grip-moving means operate, whereby the said movable grip engages with the material with a yielding pressure or force, substantially as set forth.

33. In a machine of the class described, the combination of a pair of hollow, rotary spindles and cutting-tools, a stationary, rigid,nonrotary grip device extending through one of the said spindles and cutting-tools, a movable grip and grip-carrying rod extending through the other said hollow spindle and tool, means for reciprocating the last said grip and its rod through the spindle in which-it is placed, and a spring through which the said means operate, whereby the said movable grip is caused to act upon the material with a yielding force or pressure, substantially as set forth.

34. In a machine of the character described, the combination' of a hollow revolving spindle and cutting-tool, grips for securely holding the material while being operated upon by the cutter, one of said grips passing through said hollow spindle and cutting-tool, and automatic placing means for delivering the material between the said grips, substantially as set forth.

35. Ina machine of the character described,

the combination of a hollow revolving spindle and cutting-tool, a non-rotatable, rigid gripping device arranged within said hollow spindle and cutting-tool, another gripping device movable toward and from the said rigid grip, and automatic means for delivering pieces of material between the said grips, substantially as set forth.

DILMAN BRUBACHER SHANTZ.

Witnesses:

B. BOYD, H. T. S. YoUcEv.

IIO