US793533A - Button-working machine. - Google Patents

Description

No. 793,533. PATENTED JUNE 27, 1905. A. W. MORRIS.

BUTTON WORKING MACHINE.

APPLICATION FILED JULY 2. 1902.

B SHEETS-SHEET l.

No. 793,538. PATENTED JUNE 27, 1905. A. W. MORRIS.

BUTTON WORKING MACHINE.

APPLICATION IILED JULY 2. 1902.

6 SHEETS-SHEET 2.

No. 793,533. FATENTED JUNE 27, 1905. A. W. MORRIS.

BUTTON WORKING MACHINE.

APPLICATION FILED JULY 2. 1902.

B SHEETS-SHEET 3.

No. 793,533. PATENTED JUNE 27, 1905. A. W. MORRIS.

BUTTON WORKING MACHINE.

APPLICATION FILED JULY 2. 1902.

6 SHEETS-SHEET 4.

im WWf//mm/ No. 793,533. PATENTED JUNE 27, 1905.

A. W. MORRIS.

BUTTON WORKING MACHINE.

APPLICATION FILED JULY 2. 1902.

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No. 793,533. PATBNTED JUNE 27, 1905K A. W. MORRIS.

BUTTON WORKINGV MACHINE.

APPLICATION FILED JULY 2, 19.02.

6 SHEETS-,SHEET 6\ NITED STATES- Patented June 27, 1905.

PATENT OFFICE.

ALBERT WV. MORRIS, OF OAMDEN, NEW JERSEY, ASSIGNOR OF TVO- THIR'DS TO STOKES AND SMITH OO., OF OAMDEN, NEW` JERSEY, A CORPORATION OF NEW JERSEY.

BUTTON-WORKING MACHINE.

SEECIFICATION forming part of Letters Patent No. 793,533, dated June 27, 1905.

Application led July 2, 1902. Serial No. 114,069.

`blank to the finished blank ready to receive the usual and necessary perforations.

In my improved machine the entire operation, save the feeding of the blanks to the charging-tube,is entirely automatic and requires but little attention from the operator in charge. y

My invention comprises special means for feeding and positioning the button-blanks in their proper relation to the cutting-tool, special means for holding the blanks during the turning operation, special means for adjusting and feeding the tool to its work, special means for keeping the cutting-tool sharp, special means for keeping the tool and the chuck for holding the blank free from the dust and chips taken off said blanks, and special means for polishing the finished blanks.

Other features and the details of my invention will be more fully pointed out hereinafter, reference being' had to the accompanying drawings, in which- Figure l isa front elevation of myimproved lmtton-working machine. Fig. 2 is a plan view of the machine. Eig. 3 is a sectional elevation taken on the line cm and lookingin the direction of the arrow a', Fig. 2, showing the parts of the machine in one position. Fig. 4 isa similar sectional view showing the parts ofthe machine in another position. Fig. 5 is a sectional elevation taken on the line I) and looking in the direction of, the arrow ,1h Fig. Fig. 6 is a Ydetached perspective view illustrating adetail of my invention. Fig. 7

is a sectional elevation of a part of the machme similar to Fig. 5 and illustrating a detail of my invention. Fig. 8 is an end elevation similar to Fig. 1, illustrating another detail of my invention. Fig. 9 is a partial plan view illustrating a further detail of my invention, and Fig. 10 is a detail view in elevation of a part of the mechanism shown in Fig. 9.

The machine forming the subject of my invention has been designed more particularly for use in the manufacture of pearl buttons. It will be understood, however, that its application and use is not confined to buttons of this character, for it may be used for turning the buttons made of any material capable of being worked by a cutting or grinding tool.

In describing the operation of my machine I will refer to the mechanism comprising the same under several heads, which may be designated as follows: First, means for feeding the button-blan ks to the chuck; second, means for operating the feeding mechanism; third, the chuck for holding the button blanks; fourth, means for operating the chuck; fifth, means for setting the blanks in the chuck; sixth, means 'for operating said setting device; seventh, the cutting -tool and its carrier; eighth, means for operating the cutting-tool; ninth, the sharpening device for the cuttingtool; tenth, means for operating said sharpening mechanism; eleventh, the driving mechanism; twelfth, means for keeping the chuck clear of the material turned olf the buttons; thirteenth, means for operating said clearing mechanism, and fourteenth, means for polishing the finished blanks.

In the accompanying drawings, 1 represents the bed-plate of the machine, and 2 the supporting-standard. Suitably mounted beneath the bed-plate and carried by a bracket 3 is a chuck 4, adapted to receive the button-blank. Carried by said bed-plate is a standard 5, on which is mounted a tool-holder 6, carrying an adjustable tool 7, which may be lowered by suitable mechanism, so as to bring it into engagement with the button-blank supported by the chuck just referred to. This chuck is rotated in a suitable manner, which will be described, and as thel first thing necessary in introduced by the operator one at a time into the tube 11, although it is obvious that the blank may be placed directly in a slide-piece 15, described hereinafter. The housing 10 referred to is arranged directly in line with thecenter ofthe button-chuck, and arranged within said housing and adapted to be reciprocated back and forth therein is the slidepiece 15, having an aperture 16, which nor-- mally rests under the tube 11 and receives from the same one button-blank at a time. This slide is moved forward at predetermined intervals by suitable mechanism and deposits a button-blank adjacent to the jaws of the chuck. The slide is shown in detail in Fig. 6 and is beveled at 17 in order that when moving forward with a button-blank it can push out of the way a button-blank previously turned and ejected by the chuck, but not thrown from the bed-plate, and it is also provided with a groove 18 on the under side, which enables the end to ride over the button-blank after the latter has been seated in the chuck. The slide is also beveled at 19 adjacent to the aperture 16, so as to assist the engagement by the same of the blanks fed from they tube 11.

Verma for operar/ag the feeding mec/mm.- ism.HY The sliding member 15 is moved from and toward the chuck to feed the buttons theretoV by means of a lever 20, carrying a toothed segment 21, which meshes with a rack 22, formed on the top of said sliding member, the housing for the same being cut away or apertured at 23 for the free movement of said toothed segment. This lever 2O is pivoted at 24, and at the opposite end it is connected to a link 25, which link is attached to a slidearm 26, arranged to move in lixcd bearings 27, the movement of said arm being controlled by a cam 28. A spring' 29 is connected to a hook 30 at the end of said slide-arm and to a fixed member 31 on the top of the bed-plate. The cam 28 is so formed that while it provides a gradual forward movement of the slide to effect the deposit of the button-blank adjacent to or directly over the jaws of the chuck it permits a quick release of the slide-arm 26 in order that the spring 29 may effect the return movement of the lever 2() and reset the sliding member 15 as quickly as possible. This movement is eifected entirely automatically, and the sliding member 15 engages 'a buttonblank at each operation and moves the same forward toward the chuck. T/ie o1/M071; for /LorZf/hif/ t/l/e uwn-km/s.- The chuck 5 for holding the button-blanks is supported from beneath the bed-plate of the machine and is constantly rotating du ring thev operation of said machine. This movement necessitates the entrance of the button-blank into said chuck during this reciprocation, which will be effected in the manner shortly to be described. The chuck is formed b v radially slotting a tube 32, and thereby forming three jaws 33, which engage the button-blank. This tube is tapered below the jaws and is mounted in a suitable cup 34, which is arranged to be moved up and down by a suitable lever connection and is provided with a spring 35, wherebyitmay be held in the raised position to clamp the jaws of the chuck around abuttonblank. Surrounding the cup 34 is a collar 36, having pins 37 projecting from the same. Resting on these pins isa lever 38, pivoted at 39 under the bed-plate of the machine. This lever is controlled by the cam 40 and has an openingl 41 providing the cam -surfaces 42 to engage the pins 37. The depression of this lever 38 by the cam 4() lowers the cup 34 and serves to open the jaws of the chuck, as said jaws are normally sprung outward and are only held in to engage the blanks by the engagement of said cup 34. When the cam releases the lever 38, the spring 35 returns the cup to the raised position,closing the jaws of the chuck. Vithin the jaws of the chuck an ejector-pin 43 is arranged, which pin passes entirely through the tube forming the chuck and is held against removal by means of a nut 44. The chuck is supported by a short hollow shaft 45, journaled in a bracket 3. Inter-poised between the bottom of the chuck-holder and a collar 43 on said ejector-rod is aspring 46,Y which tends to raise said rod, so as to eject the turned button-blank when the clamping-cup is released, said cup having' been previously lowered by its coacting mechanism, thereby releasing the frictional contact of the chuck upon said ejector-rod.

Vea/11s for 01m/raming t/e Chawla- As noted above, the chuck is carried by a short hollow shaft 45, journaled in the bracket 3. This IOO bracket is cut away at 47, and carried by the As I have already said, the chuck is revolvf ing constantly as the button-blanks are fed to the same. The sliding member for feeding the blanks to the chuck delivers said blanks directly over the opening in the chuck. The opening is spread, however, due to the fact that the clamping-cup for said chuck is in the lowered position, and in order to set said blanks in the jaws of the chuck I provide the carried by the slide-arm 26.

finger 50, pivoted at l to ears 52, carried byv the base-plate of the machine and shown more clearly in Fig.

Verme for cpc/'ating said sett/ng Zee/06. The linger 50 is operated by means of a sliding rod 53, secured to one end of said finger, which rod in turn is moved by a lever 54,

'controlled by a cam 55 on the main driving- Vblanks adjacent to the chuck said cam 55,

through its connections, has moved the linger 50, so as to press its free end upon the buttonblank and set it in the jaws of the chuck. 'Ihe cam is so timed that the finger will be released as soon as the button-blank has been set in the jaws of the chuck, and at the same time the clamping-cup for said chuck will be raised and the button-blank will be securely held. All yof this operation takes place during the rapid rotation of the chuck, and hence the movement of the parts must be quick and accurate. 'Ihe chuck is provided with a recessed portion 56, which forms a seat for the buttonblank, so that the latter when once set in place may be turned down to a delinite thickness no matter what its original thickness may be.

In Figs. 9 and l0 I have shown a modified forni of mechanism for operating the settinglinger. In this form of structure this work is performed by means of a spring 60, which is The linger 50 is normally held out of action by means of a coiled spring 61, and the spring 60 is employed to throw the ling'er down into engagement with the blanks. As the slide is moved forward carrying a blank to be deposited in the jaws of the chuck the spring 6() is acting against the rear end of the linger and is gradually lowering said linger, so that when the blank has been moved by the slide directly into position in the chuck it will be engaged by the linger and pushed into place. As soon as this is done the rear end XL of the spring' 6() contacts with a pin 62 on a part of the liXed structure of the machine, releasing the linger 50 and permitting its rise by the aid of the spring 6l, so that the slide l5 can be retracted for another blank.

Ill/w cmfz'm/-ool and rits caf/'wier mec/taav'sm.-A standard mounted on the bedplate of the machine, is provided with a vertical slide 65, to which is adapted a sliding carrier 6, having' a tool-carrier 66 adjustable in several directions, to which carrier an adjustable tool-post 67 is connected, in which is vthe springs 76.

vthe same.

mounted an adjustable tool 7. rIhis tool, as has already been noted, is employed for turning or dressing the button-blanks and shaping them into perfect forms ready to receive the holes. Said tool is provided with a handle 68, whereby it may be set up to the work w hen desired.

Warum for operating the Caman-tool. MrIhe vertical movement of the sliding member 6 is accomplished by means of the lever 69, pivoted at 70 to said standard and having ayoked end 71, which engages a pin 72 on the toolcarrier, and agooseneck 73 at the opposite end, having a friction-roller 74:, which is engaged by a cam 75, mounted on the main driv ing-shaft 8. Thls cam 1s formed so as to carry the tool into engagement with the blank and to rest in such position until the blank is finished and then to become inactive, so far as movement of the tool-slide is concerned,

whereby the latter may be raised to carry said tool into the inoperative position by means of In Fig. 4 the tool is shown in operative position working on the buttonblank, while in Fig. 3 the tool is shown as having been raised to the inoperative position.

The shammi/ag deecejbr the cittt//f/tg-tool. u When this machine is employed for turning pearl buttons, which are, as is well known, very hard, means must be provided for sharpening the tool at regular intervals, and such means must be automatically operated during the normal running of the machine. For this purposel I mount on a counter-shaft 8O an emery-wheel 81, which is provided with operating mechanism, so that it may be brought into connection with the tool after the turning of every fourth button. To do this, I employ the following means:

Verma for operativa/0157i@ s/tarpcmfag mac/1,- mc'sna-From the spur-wheel 82, mounted on the side of the machine, an arm 83 projects, said arm being hinged at the center of said spur-wheel. This arm is connected to the end of the counter-shaft 80. On thc face of the spur-wheel an annular rib 84 is provided, and said arm has a projection 85 engaging aid rib. rI`he counter-shaft 80, carrying the emery-wheel 81, is held away from the tool against the action of the spring 86 by means of this arm. Ata point 87, however, the annular rib 84 is recessed, and when during the turning of said spur-wheel by its pinion said recess comes opposite the arm the spring 86 Will tend to force the emery-wheel into engagement with the tool. 'Ihis engagement is only momentary and is sufficient simply to keep said tool constantly sharp. It will be the business of the operator to keep his eye upon the tool and see that it is set up to its work and that it is engaged by the emerywheel every time the latter is moved toward emery-wheel, is driven by means of a belt 88, which receives lts power from the pulley 48,

IOO

The counter-shaft 80, carrying the 'are ready for such movement. .are preferably provided with suitable hubs- Awhereby they may be secured to the main driving-shaft by set-screws. The levers engaging said cams are all provided with antifriction-rollers.

The warms for keeping the chuck clem 0f 2571/@ mfr/arial Zammel of the Zry/fcsf-In a-machine of this character the material will be removed from the blanks in a finely-powdered state and unless removed from the chuck will tend to choke the latter and prevent the accurate adjustment and holding of the buttonblanks therein. In order to remove this, I prefer to employ a blast of air, which may he operated continuously or intermittently, as

desired. This structure is shown in Fig. 7 and in dotted lines in Fig. 1. The end of the pipe 95 carrying such blast is arranged so as to direct the current of air against the top of the chuck, and in this position it will be e11- tirely clear of the operating parts of the machine and at the same time will not be so strong as to affect the position of the blanks. To provide the necessary blast, a fan 96 is carried by the end of the counter-shaft, which fan rotates within a casing 97, carried by the @Ism/. The fan is driven directly by the counter-shaft 80, and either fan or casing is arranged to move with said shaft when the sharpening mechanism is operated. If in practice the speed of the counter-shaft is not suiiicient to provide su lIicient blast or suction, gearing may be connected to said fan from the main driving-shaft 8, and thereby have as high speed as necessary or desirable. The fan-casing is carried by a bracket98, which is connected, by means of a bolt 99, with a part of the fixed frame of the machine.

llkam' forpolz's/L/ag t/Leym's/ed Hrm/rsf- After the blanks have been turned by my improved machine I may remove the cuttingtool and its operating mechanism and place on the machine an apparatus for polishing the blanks. This is clearly shown in Fig. 8. The

- tool-holder is removed, and in its place a finger 100, carrying a rouge-pad 101, is fixed. This device is controlled by the lever 73, which operates the tool-holder; hut in' place of the cam 75 a cam 102 is employed. The buttons will be fed as when turning the same and the machine operated in entirely the same manner, except that the blast may be dispensed with.

Carried by the slide 15 is a rouge-cup 103, having a scraper 104, and this cup will be carried forward, so that on the downward movement the pad 101 will enter the cup and receive suficient rouge to polish the blanks. The movement of the pad is controlled directly by the cam 102, and said pad is moved into and out of the cup and then into the blank, the contact of the latter being suflicient to insure the proper polishing of the same. This mechanism is described and claimed in an application filed by me May 12, 1904, Serial No. 207,583.

Although I have shown and described my invention as having a vertically-moving chuck with coacting mechanism arranged to operate upon a chuck so disposed, it will be understood that said chuck may be mounted hori- Zontally and the button-blanks fed to it from a feeding-spout that will deliver them in a position toc be acted upon by a setting-linger to insert them in such horizontal chuck. It will also be understood that I may employ duplex mechanism which may be operated from the driving and operating means shown and described or I may provide a series of chucks to operate simultaneously in a similar manner.

Having thus described my invention, I claim and desire to secure by Letters Patent- 1.. The combination in a button-working machine, of a vertically mounted continuously-revolving chuck, a horizontally-sliding member for automatically feeding buttonblanks to said chuck, a housing for said sliding member, a lever for moving said sliding member, a cam for causing said lever to move the sliding' member in one direction, a spring for retracting said lever to move the sliding member in the opposite direction, and means for operating said cam.

2. The combination in a button-working machine, of a vertically -mounted continuously-revolving chuck, a vertically-sliding sleeve encircling the same and acting when in one position to close the chuck, means for moving said sleeve, a horizontally-sliding member for automatically feeding button-blanks to the chuck, a housing for said sliding member, a lever for operating said sliding member, and means for operating said lever in two directions whereby the sliding member may be moved back and forth.

3. The combination in a button-working machine, of the vertically-mounted continuously-revolving chuck, a horizontally-sliding member for automatically feeding blanks to said chuck, ahousing for Said sliding member, means for closing said chuck around the blanks, a pivotally-mounted finger for engaging said blanks and seating them in the chuck during the rotation of the latter, and means I for operating said finger as the feeding member is retracted.

4. The combination in a button-working machine, of the continuously-revolving chuck` means for turning the same, a movable sleeve encircling said chuck and arranged to close the same, a spring for acting upon said sleeve, a sliding member for feeding button-blanks to the chuck, a lever for operating said sliding member, the latter having a racked portion, and the lever being provided with a racked segment, and a pivoted finger for engaging the blanks and seating them within the chuck, said blank being seated as the chuck closes and as the feeding member is retracted.

5. rIhe combination in a button-working machine, of the continuously-revolving chuck, means for opening and closing the same comprising' a movable sleeve encircling the chuck, a lever in operative engagement with said sleeve and serving to hold it away from the chuck, a cam engaging' said lever, and a spring in engagement with the sleeve, a sliding member for feeding blanks to said chuck, said member having a racked portion, a lever carrying at one end a segmental ra'ck to engage said racked portion of the sliding member, a cam for operating said lever in one direction, and a spring for operating said lever in the opposite direction, and means serving to bring the blank gradually to its position within the chuck and causing a quick return ofthe sliding' member. 4

6. In a button-workingmachine, the combination of the vertically-mou nted continuousl yrevolving chuck having spring-jaws, a vertically-sliding sleeve for closing said jaws, the latter being shaped to receive the buttonblank, a lever operatively connected to said sleeve, a cam for moving said lever, a pivot-- ally-mounted finger adapted to act upon the blank andiseat the same within the jaws of the chuck during the rotation of the same, acam for controlling said seating-finger, an ejectorrod mounted within the chuck and depressed and held by the seating and clamping of the button-blank therein, and a spring for acting upon said ejector and serving to dislodge the button-blank when the jaws of the chuck are opened.

7. In a button-working machin e, the combination of the vertically-mou nted continuouslyrevolving chuck, means for rotating the same, a horizontally-sliding member for feeding button-blanks thereto, a housing for said sliding member, a lever operated by a cam in one direction and a spring in the opposite direction formoving said sliding member, a pivotally-mounted iinger for seating said blanks within the chuck, a lever mounted on the frame of the machine and connected to the seating means, a cam for operating said lever whereby the seating means may be moved to position the button-blank, said cam being so shaped as to permit a quick release of the setting means after the blank has been seated in the chuck, a vertically movable sleeve encircling the chuck, a lever connected to the same, and a cam controlling said lever so as to cause the sleeve to open and close the chuck.

8. In abutton-turning machine, the combination of the cutting-tool adjustably mounted on the machine, a sharpening-wheel adapted to engage therewith at proper intervals, a main driving-shaft, a counter-shaft, a spur-wheel mounted on the frame of the machine and geared to the main driving-shaft, and means carried b v the counter-shaft and said spurwheel for holding the wheel from the tool and permitting engagement therewith.

9. In a button-turning machine, the combination of the cutting-tool adj ustabl y mounted on the machine, a sharpening-wheel adapted to engage therewith at proper intervals, `a main driving-shaft, a counter-shaft, a spurwheel journaled on the frame of the machine and geared to the main driving-shaft, an arm pivotally mounted at the center of said spurwheel and connected to the end of the counter-shaft, a rib on the face of said spur-wheel and contacting with said arm whereby the counter-shaft is held so as to keep the sharpening-wheel away from the tool, said rib havinga depression whereby the arm may be released and the counti r-shaft moved to bring the sharpening-wheel against the tool, and means for effecting this movement of the shaft.

10. A button-working machine comprising acontinuously-rotating chuck, means for driving the same, a device for transferring a button-blank from a suitable receptacle to the chuck comprising a horizontally-sliding member formed with arecess to receive the blank, such sliding member having means for preventing displacement of the blank during movement of the same, a pivotally-mounted member for pushing the blank out of the sliding member into the chuck, a tool-carrier, a turning-tool carried thereby and arranged to advance to and recede from the chuck in order to turn the face of the blank carried thereby, a device for ejecting the turned blank from the chuck, and means for imparting motion in proper seq uence to the transferring devices, thetool-carrier and tool, and the ejector, substantially as described.

1l. A button-working machine comprising a continuo usly-rotating chuck, means for driving the same, a device for transferring a button-blank from a suitable receptacle to the chuck comprising a horizontally-sliding member having an end formed with a recess to receive the blank and a guard or housing for preventing the blank becoming displaced during the movement of the sliding member, a pivotally-mounted member for pushing the blank out of the slide into the chuck, a toolcarrier, a turning-tool carried thereby and arranged to advance to and recede from the chuck, for the tool to turn the face of the IOO IIO

blank carried thereby, a grinding device for grinding the tool during part of the receding and advancing movement of the tool, and means for imparting movement in proper sequence to the transferring devices, the toolcarrier and tool, and the grinding device, substantially as described.

12. A button-working machine comprising a driven part, a continuously-rotating chuck driven therefrom, means controlled thereby for opening the chuck to eject a turned button, a cam driven independently and controlling said means, a horizontally-sliding member controlled from the cam-driving means vand arranged to receive a blank from a suitable receptacle and deliver it in front of the open chuck, a pivotally-mounted member for pushing the button-blank out of the slide into the chuck a tool-carrier having longitudinal movement and controlled from the cam-driving means to advance to and recede from the said chuck, and a tool carried thereby to engage the blank.

13. A button-working machine provided with a horizontally-moving slid e-piece having a head formed with a recess for the reception of a buttonblank, said head having an inclined passage-way leading into said recess, and a housing or guard through which said slide is moved, said guard serving to retain the blank in place during the movement of the slide-piece.

14. A button-working machine provided with a button-blank delivery-chute for delivering the blanks singly to the head of a horizontally-moving' slide-piece, said slide-piece having a recess .to receive a single buttonblank with an inclined wayleading to said recess, a housing or guard .for keeping said button-blank in place, and a racked lever and a spring for moving said slide to and fro between the delivery-chute and the chuck, substantially as described.

15. A button-working machine provided with a reciprocating carriage, a tool -post mounted to slide up and down on said carriage, a tool carried by said tool-post, a revolving grinding-wheel adapted to be engaged by the tool during part of the movement of the carriage, a shaft carrying the grindingwheel, means for rotating saidshaft, and independent means, automatically operated, for moving said shaft longitudinally in its bearings at regular intervals for the engagement ofv said grinding-wheel with the tool.

16. A button-working machine, provided with a continuouslyrotating chuck, a carriage mounted to reciprocate toward and from the chuck, a carrier mounted on said carriage and adjustable thereon, a tool-post on the said carrier and carrying a turning-tool to turn the button-blank in-said chuck, a grindingwheel adapted to be engaged bythe said turning-tool during part of the stroke of the carriage, a cam for moving the said tool-post upward intermittently, means for adjusting the grinding-wheel relatively to the tool at vregular intervals, and independent means for rotating said grinding-wheel.

17. A button-working machine havmg an intermittently-reciprocating tool-carriage, a

tool carried thereby, a grinding-wheel mounted to rotate, means for rotating the same, a collar mounted on the grinding-wheel shaft,

a stud or spindle carried by the machine, anv

arm pivoted thereto and in engagement with said collar, a rotating member mounted on the stud and controlling the arm whereby the grinding-wheel is held out of engagement with the tool during the greater part of its rotation, and a spring for throwing said wheel into engagement with the tool at regular intervals, said rotating member being shaped to permit this action.

18. A button-working machine provided with a continuously-rotating chuck, means for driving the same, a grinding-wheel having a horizontally-disposed shaft, means for turning said grinding-wheel shaft from the chuckdriving means, a cam-shaft, `a tool-carrying member driven from said cam-shaft, a collar mounted on the grinding-wheel shaft, a stud or spindle carried b v the machine, an arm pivoted thereto and in engagementwith said collar, a rotating member mounted on the stud and controlling the arm whereby the grinding-wheel is held out of engagement with the tool during the greater part of its rotation, and a spring for throwing said wheel into engagement with the tool at regular intervals, said rotating member being shaped to permit this action.

19. A button-working machine comprising a button-blank delivery-chute, a horizontallymoving slide-piece to which the blanks are delivered, means for depositing the blanks singly in the slide and controlled therefrom, a continuously-rotating chuck, a pivotallymounted member for pushing the buttonblank from the slide into the chuck, a toolcarrier for carrying a turning-tool to turn the face of the button-blank while in the chuck, an ejecting device for ejecting the turned button from the chuck, and means for automatically operating the several parts of the apparatus in proper sequence.

20. A button-working machine comprising a button-blank delivery-chute, a horizontallymoving slide-piece to which the blanks are delivered, means controlled by the slide for delivering the button-blanks singly thereto, a continuously rotating chuck, means for pushing the blank from the slide into the chuck and vcomprising an arm mounted to swing on the frame of the machine, a toolcarrier for carrying a turning-tool arranged to advance and recede from the chuck for the tool to tu rn the face of the button-blank while in the chuck, and a grinding device for grinding the tool during part of the receding and IOO IIO

advance. stroke of the tool-carrier, substantially as described.

21. The combination in a button-Working machine, of a vertically mounted continuously-revolving chuck, a horizontally-sliding member for automatically feeding buttonblanks to said chuck, means for moving' said sliding' member forward to deliver a blank to the chuck, a pivotally-mounted finger for engaging said blank and pushing it out of the sliding member into the chuck, and means for retracting said sliding member.

In testimony whereof I have signed my name to this specification in the presence oftWO Subscribing Witnesses.

ALBERT WV. MORRIS.

Witnesses:

MURRAY C. BOYER, Jos. H. KLEIN.

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