US1244135A - Button-stapling machine. - Google Patents

Description

J. SCHWEISS.

BUTTON STAPLING MACHINE.

APPLICATION FILED APR. 2|. 1911.

L; Patente@ OCI. 23,191?.-

3 SHETS-SHEET l.

1. scHwnss.

BUTTON STAPLIMG MACHINE.

APPmcAT'loN FILED APR. 2|, |911;

Patented oct. 23,1917.

3 SHEETS-SHEET 2..

' BUTTON sAPLlNG MAc mNE.

APPLICATQN FLED APR. 2l'. |911.

' 'Patented 0015.23, 1917.'

l3 SHEETS-SHEET 3.

err' ears .an rrron JOSEPH ,SCHWZISS, GE ST. f`L`IITIIIS,` MISSORLfArSSIGNORxTO `LNDIS:TNIAG-IILJTZE COMPANY, 0F ST. LOUIS, MISSOURI, A COBPORATON OF MESSOURL BUTmoN-STAPLINQMAQHINE.

.specification of Leiters Patent. Patentedct. 23, 191.7..

Application i-ld 4Lpii1'21y1f917. Serial lN0.163,6'02.

-To all @f1/wm t may Concern: l

Be it known that I, JosEPH^SCHWiiiss,-a citizen of the rUnited `States, 'residingvat the city of St. Louis, State oi' h/lissourh'have invented ya certain lnew and useful Improvement in Button-Stapling Machines, of which the following is a full, clear, Vand exact description, such as vvill enable others skilled 'set and 'clenched in the Work.

The objects of the invention areto provide a machine oftfhis sort Which by virtue or" the small ynumber-and simplicity of parts required, Will'be economical-in cost, durable in construction, easy `to operate, and not subject to disorder.

Further objects reside in `the provision of means 4enabling` the rapid interchangeor' ibuttons, and the `provision of new and improved mechanisms and detailsof construction -for performing more efficiently the vcus- -toniary operations of machines ofthis type.

Other and further objects Will'beobvio'us or pointed lout hereinafter, v reference being I'had to the illustrative embodiments shown inthe accompanying.drawings in Which- Figure fl iis a front elevation of themachine;

Fig. 2 isa side view with yvarious-parts in Alongitudinal section;

Fig. 8 is a part plan'vieyv'ivith certain -upper portions'of the machine removed;

Fig. lis a detail showing certain .of the parts of Fig. 3 in afdiferent position',

Fig. 5 lis an elevational V'vievv With parts in longitudinal section substantially on line 5 5 of rig. i. l i

`ReferringI to these illustrationsiby the-reference numeralsappliedflet itlbe understood that the numeral El lindicates a suitable `frame 'which vismoun'tedfon anyv proper `support in conjunction with the conventional operating` treadle. is shapen :to provide ithe horn or anvil .and 'tlieirear-Ward portion of the iframe Vprovides a .housing for certain fof-fthe Working porting vthe 'conventional spoolv of staple imember having a cross connecting member 'laat its loiverside. 'Reciprocal'ly mounted The forward portion -o lAthe A*frame* parts, aslsliovvn in elevational -section-inl `ig. l2. A 'stub shaft isljournal'edf'in the trame :adjacent theY rear portion of the `machine,

aiidwvithin-v the housingportion carries a bellcrank Alever 5,- aiid on 1an end proj ecting lfrom f the i' housing' carries the crank nien'iber 6. 'On a pivot member 7-'on'the outer Wall ofthelhousin'gl-is pivoted fa second beli `crank 8. IForthe purposelo'f distinction, I vvi-ll designate lthe bell :crank las the forming 'belliv lcranlx,aind the' bell crank 8 as the button feedingibell 'l crank. cra-nk pin 9 onfthe member '6 lias operative engagement with one-arm ofthe'rbell crank 8,vvhile 'a-recipro- Aeatery link 10, foperablly associated aviththe conventional treadleat its lower extremity,

isz-'connected `with one `arm 'of the forming v-bell crank-.5. Consequently, when the'link 10 is :reciprocatedffbyyoperation 'of' the .treadle, the bellcranks 51and8 -Will 'be rocked 'on their pivots. j

Extend-ing from ythe right side of v`the Aframe lis a vtable `portion l11 'having means arranged at its outer extremityY for supwvire 12. iPivoted yat 14 onlthe tableporti'on '11 is -a lWire ifeeding arm l5, vhereinafter. to

rist

'be described Vmore in detail. The sidewalls i and I7. Reciprocally mounted on thesel ftra'ck and v4guide members? is lthe formery block 18 which is; 1in `the form of a ybifurcated on z"theoriiier block and between the legs rearward end of the 'driving Vmember '19 lextends vbeyond the `rearward extremity of `the former block flS, 4and carries a laterally lprojectinglug 20 and ya depending-portion 21. In achannel inthe rear portionV ofthe former 'block 18 `is a plunger v22 'held 'outivardly -by -a coiled spr-ing'l. The ,plunger 2Q. llies inthe path ofthelu'g 20. @pera'bly connecting the depending'member 21 yandv fthe upwardly extending arm of the fforrn? ing bell `crank '5 is alink 25. yThe extremity ofthe vertically extending arm of i'the' "bell cran`k5 is-disposed in proximity 'to lthe former block 18, and carries a A'single'gear it o tooth 26 designed to have operative engagement with the former block within a notch which is provided in its lower side, as best seen in Fig. 2. By virtue of the connece tions just described, as the bell crank 5 is swung forwardly by the downward movement of the link 10, the tooth 26 will engage the forward side of the notch of the former block and slide the block forwardly, while the driving member 19 is also carried forwardly by virtue of its connection with the bell crank 5 through link 25. The initial movement of the bell crank 5 which brings the gear tooth 26 against the forward wall of the notch in the former block, also brings the lug 2O closer to the end of the plunger 22. As the former block is carried forward by the swinging movement of the bell crank 5, it ultimately reaches a point where the tooth 26 will be disengaged from the notch in the block, whereupon the further movement of the block, as well as the movement of the driver, is accomplished by virtue of the engagement of the lug 2O against the plunger 22, and the operative connection of the driver with the bell crank by means of link 25. ln this fashion the latter portion of the movement of the former block is accomplished through the cushion connection furnished by plunger 22 and spring 24.-. Tilhen the former block reaches its limit of movement, which is determined by the thickness of the work with which it is .brought Vinto contact, the driver will continue its downward movement, which is permitted by this yielding connection afforded by spring 2e'. The driver is provided with lugs 13 which move in grooves 23 in the former block. 0n the rearward .movement of the driver, these lugs come up against the rear ends of the grooves 23 and move the former block rearwardly to the point where the notch on its lower portion is in position for engagement by the tooth 26.

Below the former block and in line with the driver, is disposed a mandrel 27, which is fulcrumed at 2S, and has an upwardly directed front arm 29 and an upwardly directed rear arm 39. rlhe rear arm 30 is disposed in the path of the cross connecting member 13 carried on the former block, so that the latter 'will ride over the arm 307 swinging it downwardly and swinging the forward end 29 of the mandrel member up between the legs of the former block and into the plane of the driver. The forward lower portion of the driver is formed as a rearwardly sloping inclined plane which is adapted to engage the forward end 29 of the mandrel member and cam it downwardly out of the path of the driver when the former block is moved forwardly a distance sufficient to disengage the cross connecting member 18L from the rearward end of the mandrel member.

Referring now to Fig. 3, it will be understood that the wire feeding arm 15 carries at its outer or free end a detent member 31 adapted to engage wire fed from the spool 12, so as to carry the wire as the arm swings away from the spool, which it does under the influence of a spring 32. rl`he means for controlling the movement of the wire feeding arm 15 includes a short bearing arm 34 extending leftwaidly from the wire feeding arm and carrying at its extremity an antifriction kroller 35. rlhis roller is adapted to engage the lateral margin of the former block 18. This Vmargin of the former block 18 is formed with an offset 36 which permits the arm 15 to swing leftwardly as the former block is retracted, and then. presses the arm 15 toward the right as the former block moves downwardly. ll`he wire thus fed leftwardly by movement of the arm 15 is held against rightward movement by the detent 37, and passes through the wire channel 38 in back of the forward end 29 of the mandrel, in which position a section is sheared off by the former block upon its downward movement, all in the customary fashion.

Referring now to Figs. 1, 2 and 5, it will be seen that a cover plate 39, screwed to the guide members 1G and 16, covers the former block and the driver, and said cover plate has a rightwardly extending portion 39a which covers the wire-feeding arm 15. ln this portion 39a is rotatably mounted a pin l0 which carries at its upper extremity above the member 392L a yoke Ll1, and at its lower extremity below the member 39Et an arm 42. This arm extends leftwardly, as best seen in Figs. 1 and 3, to a point where it is engaged by a pivoted crotch member lll rotatably mounted on the upwardly en tending arm of the button feeding bell crank 8. The table member 11 is suitably apertured to permit the passage of the upper extremity of the said bell crank member, and as seen iii-F ig. 5 the cover portion 39'd1 is shaped to accommodate its forward and rearward oscillatory movement. Pivotally mounted in the yoke l1 is a button-feeding linger 45, the arrangement being such that the feeding finger may be swung downL wardly into the operative position sh wn in full lines in 1, or upwardly into the inoperative position shown in dotted lines. A tension member 46 (see Figs. 1 and 5). which is pivoted at 46a and urged downwardly by a spring 461, is adapted to contact with the upper surface of the button feeding finger so as to exert a yielding pressure upon the same in a downwarr direction. rlhe tension member i6 has a lower bearing edge, which engages the button feeding linger, formed with considerable length to accommodate movement of the button feeding nger. The tension inem- -ber 46 carries a lateral projection 461which may ".be'engaged by the fingerof the operator to lift the tension ymember away from 4thebutton feeding finger toenable the llatter to be' swung upto the position illustrated inidot and dash linesin F ig. 1. The forward extremity of the button feeding' linger is deflected downwardly atan angle to its body portion to provide the button engaging yportion 45L which 'is suitably shaped at its-lower margin to engage a button. Y

A button'tube 47 of conventional forni=is removably mounted on 'the cover portion 39 in pedestal member-s 48-and 49, the upper lower extremity the tube abuts a button guide plate 5l which first slopes downwardly from the end of the tube on a plane substantially parallel with the r`tube and then changes its angle of slopeso as'ltocontinue substantially parallel withfthe former block and driver, in which position it lies directly above and forms a cover 'for-them. The button guiding plate is provided with a button slot designated by the numeral 52 which registers Awith-the Yeye receiving channel of the tube 47 at its upper extremity, and for a portion ofits length adjacent the lower portion of the plate lies in alinement with the groove 19L ofthe driver. The slot at the lower extremity ofthe 'tube A47 lies on a radius relative to the pin '40 equalto the length of the button feeding finger 45, and the adjacent portion of 'the slot 52 is also formed substantially on the same radius, so that the slot takes a yrightwardly slanting or arcuate directionas illustrated in Fig. l. At the point where theslot Vcomes into alinement with the slot 19.31 of the driver, it changes its direction to the left Vso that it leaves the'said radius and lies out of the reach of the button feeding "finger 45. A spring `finger 54 is adapted 'to retain buttons in the tube 47 from sliding into `the slot 52. Depending from the button feeding finger 45 and pivotally secured thereto, is an elevating pallet 55 which is formed so as to permit its oscillation rearwardly on its pivot, but not forwardly. lv'lounted on the cover portion 391L in'coperative relationship with the pallet member 55, is a cam member' sloping upwardly from its forward edge. i

lBy virtue of this' arrangement of parts,

whenever the button feeding bell crank N8 isV 'oscillated 'by the 'meansheretoforev described,

varm I5 iiiithe manner abovedescribed.

fit will rrst :swing rearwardly, f swinging the l'arm-'42 which iii turiirotates'thepin 40v and swings the button feeding vfinger 45 rear- :wardly In the rearward movement of the button 'feedingifingen the pallet member 55 coinesiinto Contact Awith'the cam member 56,

Iand rides up the sloping face of the latter,

'thereby elevatingfthe free extremity of the button Y feeding finger. In this movement, thebutton feeding finger is held under yieldingtensioiifbythetension member 46, which permits its upward 'as welll as its rearward movement. linien, in the course of the rearwardfmovement ofthe button feeding linger,

the pallet member 55 reaches the rearward extremity of the cam member 56, it drops olf of the-saine, thereby directly lowering the free'extremi'ty of the button feeding finger.

rFhisbrings the button engaging portion '45a down onftop of and into operative engagement with the lowermost button which isretained bythe spring finger 54, the tension member @46 operatingfthus to force the but- -ton feeding finger downwardly into engage- 'ment with the button. Thisbeing accom- Aplisliedl at the end of the rearward movement oftliefbell crank 8,"the latter then rocks forwardly, swinging the free'end ofthe button feeding finger forwardly through the instrumentality ofthe connections just described. Ars the button 'feeding finger moves for- `wardly, fitfcarrie's the buttonl with which it ifs iinlengagement out from under the spring Eiinger54 and down the plate 5l, the eye of the button riding inthe slot 52, the pallet 55 bein@w rocked rearwardl uion yen 'agement with the cam member 56 so as to permit the extremity ofthe button feeding finger rey.'in'aiiiing in engagement with the button. The button is carried forwardby this inovement to the point -where its eye comes up against the extremity 'ofthe mandrel member "29, `at which point the button guiding slot changes fdir'ection, so that the further 'movement of the button feeding fingercar- 'riesit out ofthe path of tliebutton, as will fbeobvious from Fig. l. lThe rearward tip ofthe l=ineniberf45a, however,` is left in engagement with the button so as tosteady it in position to receive the-staple wire. rlfhe wireis fed to the button by movement of-tlle t the next depression-of the treadle, Vthe' former blockv moves Idownwardly in the manner above ldescri'bed'to shear olf the section ofthe wire 'andlto bend it about the mandrel 29 to form the staple jin the customary fashion. The ldri-ver 19 then moves `downwardly to engage the button and staple and carry it forward and set it in the worli in the well f known manner. It 'willbe observed that by Vthe artcu-lation ofthe parts', the button feeding 'linger frnoves rearwardly as the former and dr-ivermove forwardly. The slot 19EL in the driver is formed to accommodat-ethereye nur:

ot the button which is brought down by the button feeding finger while the driver is moving rearwardly.

in order to prevent the feed of wire when o button is ted to the stapling position, 1 ro. ide on the cover portion 89a a stop memr 5S which is spring-pressed upwardly so at its upper extremity will lie in the path he lower face oi' the button feeding iinger 'W hen projected downwardly, the lower .i/'treinity oi the stop member 58 is adapted uo lie in the path of the wire feeding arm 15 where it may engage an abutment member 59. lli/lien, in the forward movement ot' the button 'feeding linger 4:5, the button engaging member 15a is raised on top ot' a button, the arm will be held out of contact with the upper extremity of the stop member 58. Consequently, the latter will not be projected into the path of the wire feeding arm l5. it, however, no button is engaged by the button engaging` portion 15 of the button feeding iinger, the latter will be permitted to drop into engagement with the upper extremity of the stop member 58, so as to press the latter downwardly into the path of the wire Vfeeding arm 15 to ciectively hold the latter against feeding operation.

From he foregoing description of the construction and operation of my device, it will be seen that it possesses very distinct advantages arising from the construction and articulation of the various parts. All cams are obviated by the arrangement whereby the movement of the mandrel and of the wire feedingI` arm are controlled directly by the former block. rl`he method of actuating the former block provides a positive driving connection to effect the wire severing and form ing operation, and a cushioned or yielding pressure driving connection for the block as it is carried forwardly to bring the staple into position against the work, said yieldable driving connection permitting the tormer to accommodate its forward movement to work of dierent thicknesses. rEhe arrangement of the button feeding iinger permits its being thrown entirely away from the button stapling position, to the position indicated in dot and dash lines in Fig. 1, which permits the machine to be used to staple an odd button, viz., one of a sort differing from those in the tube, without requiring the removal of the tube from the machine or the insertion ot the odd button in the tube and the feeding out of the other buttons below it. rlfhe relative disposal of the button feeding linger, the tube and the forming and driving mechanism permits the button to be carried to the driving position without interference 'from the nger, and at the same time greatly reduces the eX- tent ot movement of the various parts of the machine.

intentes 1t is to be observed further that this con struction requires but very `few parts, and that all. of the parts may be made of such size as to secure great strength and insure certainty ot operation. rThe working parts are all well housed and protected and the machine as a whole is very compact.

1l/Vhiie 1 have described above an embodiment orf the invention which I now consider the best form for the application of the principles ot my invention, l am aware that my invention is not limited to this particular embodiment but that its principles may be applied in other structures differing therefrom yet comprehended within the scope of the following claims.

llllhat l claim is 1. ln a stapling machine, the combination of a forming block mounted for reciprocatory movement, a driver mounted in association with the forming block for reciprocatory movement differential to the movement ci" said block, and an actuating member having a permanent operative connection with the driver and an independent releasable operative connection with the block whereby those members may be actuated for their reciprocatory movement, there being a yielding pressure means forming an operative connection between the block and the driver whereby the block may be actuated by movement of the driver.

2. in a stapling machine, the combination of a forming block and a driver mounted for differential reciprocatory movement, an actuating leven-said lever having continuous operative connection with the driver, the lever and the forming block being provided with means forming an operative connection, said lever being operable to disengage said connection, and yielding pressure means associated with the driver and forming block to provide an operative connection for the two.

3. 1n a stapling machine, the combination ot' Aa reciprocatory forming block, a differentially reciprocatory driver associated therewith, an oscillatory actuating member, a portion of said actuating member being movable into and out of operative connection with the forming block upon movement of the actuating member, and a portion carried by said actuating member forming a permanent operative connection with the driver.

1. ln a stapling machine, the combination of a reciprocatory forming block, a dii'lerentially reciprocatory driver, an actuating member, and means for moving the same, there being a permanent operative connection between the actuating` member and the driver whereby the latter is moved upon movement of the actuating member, there being an independent operative connection between the actuating member and the forming fbloclr whereby Athe latter .isi-moved fduring only a :portion Aof the movement -of the actuating member, and there beingiayielding pressure .memberassociated with the forming -bloclr .and the driver vvherebygthe block lmay be moved dierentially bymovement :of the driver.

y5. In a staplingmachine,thecombination ofa .-reciprocatory driving member, a reciprocator-y forming fmember, an oscillatory actuating member, means for vmoving the. actuatingimember, anda link ,forming a permanent operati-ve vvconnection :between the actuating member and the driving member, the actuating member 'having :free operative connection xwith vthe lforming member.

`6. In a. stapling machine, thecombination of an .oscillatory` actuating. member', a reciprocatory forming vmember disposed tangentially -tothe arc of theiosoillatory member and havingfafree operative connection therevvith, anda driver member 'havingpermanentoperative connection `Withthe .actuating member, `there being `a yielding connection between thedriver member and-:the forming member :whereby `the latter 4may lbe actuated from the driver independently of ,its own connection with theactuating member.

:7. Ina stapling machine, the combination of:a reciprocatory .forming member, a differentially reciprocatory driver, an actuating member having permanent operative connection with. theA driverancb anindependent-free operative connection with the forming member .whereby tofpermitf-.the' difierentialmovement of saidmembers, and a vyielding ypressure ymember forming an loperative connection whereby lthe .forming member maybe movedby movement of the driver, the driver and forming member having operative connection whereby the Ylatter .-may begpositioned for engagement vvith 'the'f actuating member.

8. In a button stapling machine, the Combination with suitable forming and driving mechanism, of a button container spaced apart from said mechanism,and a button feeding finger pivoted at one side of @said container and said mechanism, for oscillatory movement intermediate said container and said mechanism across the line of movement of the driving mechanism.

9. In a button stapling machine, the combination of a reciprocatory driver, a button container, a guide member having a slot eX- tending from the container to the driver, and a button feeding finger pivoted at one side of the driver for oscillatory movement to and from the container across the path of movement of the driver to move a button from the container through said slot and into the path of the driver.

10. In a button stapling machine, the combination of a reciprocat'ory driver, a button container disposed at one side thereof, a

slotted guide platefor guiding buttons from the 'container 5to Ithe driver, and a vbutton feedingiiinger movable across ythe 'slot' in said plate Vto convey buttons from the container to a position in the path `ofthe driver.

.11. lIn a buttonstapling machine,1the combination of a reciprocatory driver, a button container disposed 'at one side ,of the path thereof a button .feeding finger, andl means for=moving saidiinger from the containerto a position at the opposite side ofthe :path of the driver.

VL12. vIn a buttonstapling machine, the combination ofa reciprocatory driver, a ybutton containerfdisposed at one side of the path thereof, a button .feeding Vfinger ,pivo-ted at the Vother --sidefof the path of the driver, means for 4actuating said finger to convey. a 'button :laterally .from the` container to `a position iin .front `of .the driver, and means for actuating the driver.

. 1.3. i-In a button.stapling-machine,.the combination of a driver, aguide plate for sust'ainingrafbutton inposition to bemoved b v said=driver,:a button feedingfiinger pivoted atzone side of saidplate, and aftensionfmember for.retainingfsaidiinger in engagement with. a button on the-plate, said tensionzmember ,and-Tsaid finger Ahaving mountings permitting the lfingers being swung free yfrom the -tension member ,andawayfrom `the plate.

14. :Ina kbutton staplingfmachine, the. combination .of *a :staple forming` mechanism, a button supporting plate, arranged to support abutton to receive a :staple -froni-said mechanism, anioscillatory button feeding ngermovableg on anfaXis substantially per-y pendicularto said 1Vplateand adapted'to con- Vey-.buttons to vsaid plate, said linger being mounted for movementalso on an `aXiseX- tending at an angle to.--said=1irst mentioned axis, andi-a..tension-member cooperating With saidfingeritol-urge it toward saidrplate.

.15. :In .fabutton: stapling machine, the combination of staple forming mechanism, a

.plate .for lsupporting a button forv coopera :tion with said mechanism, a button container disposed above and to one side of said plate, a button feeding finger mounted at one side of said plate for movement on tvvo axes, and means for moving said finger on said axes to convey a button from said container to said plate.

16. In a button stapling machine, the combination, with staple forming mechanism, of a button supporting plate for supporting a button for coperation therewith, a button container, and a button feeding finger pivoted at one end for oscillation in different arcs and comprehending said container and plate in its scope of movement.

17. In a button stapling machine, the combination of a butto-n feeding' finger, a pivoted member upon which said button feeding finger is mounted for oscillatory movement, said pivoted member being movable to swing the feeding finger' in a different direction, a button container, staple forming mechanism, a button sustaining plate for holding a button for cooperation with said mechanism, means for guiding said finger into operative association With said contain-r andsaid plate, and tension means for pressing said finger into cooperation with said container and said plate.

18. 1n a button stapling machine, the combination of a button container, a Wire-feeding device, a button sustaining plate for supporting a button to the operation of said wire-feeding device, a button feeding finger to coperate with the plate to hold a button, a universal mounting for said button feeding finger, means for actuating said button feeding finger through saidmounting, and means for guiding said button feeding finger into operative association with the container and the plate.

19. in a button stapling machine, the combination of a Wire-feeding device, a button container, a button sustaining plate, a` button feeding finger adapted tocoperate With the plate to hold a button to the operation of the wire feeding device, a. universal mounting for said button feeding finger, means for actuating said finger through said mounting, and yielding pressure means cooperating with said finger to urge it toward said container and said plate.

20. 1n a button stapling machine, the combination of a Wire feeding arm pivoted for oscillator)7 movement, a button feeding finger pivoted for oscillatory movement and extending across the said arm, and a stop device operable by the finger vto prevent movement of the arm.

21. in a button stapling machine, the combination of a frame member, a Wire feeding arm pivoted for oscillatory movement thereon, a cover plate mounted on the frame to cover the arm, a button feeding linger pivoted on the cover plate, and a stop member mounted on the cover plate in operative association with the finger and the arm.

in a button stapling machine, the combination of a frame, a Wire feeding arm mounted for movement thereon, a button feeding finger having a universal mounting` on said frame, a stop member operable by said finger to engage the arm, and a yielding pressure means coperating With said finger to urge it for effective coperation With said stop member.

23. ln a button stapling machine, the combination of a button container, a button sustaining plate, a Wire feeding arm, a stop member associated With said arm, a universal mounting for said feeding finger, and yielding pressure means for urging said finger into operative association With the container, the plate and the stop member.

2d. 1n a button stapling machine, the combination of stapling mechanism, a button sustaining plate for holding a button to the operation of said mechanism, a button feeding finger, tension means for urging said finger for operative association with the plate, and a universal mounting for said finger whereby it may be moved out of cooperation with said tension means and said plate.

25. 1n a button stapling machine, the combination of stapling mechanism, a button container, a button feeding finger for conveying a button from said container to said mechanism, tension means for urging said finger for cooperation With the container, and a universal mounting for the finger whereby it may be moved out of association with the tension means.

1n testimony whereof 1 hereunto affix my signature this 19th day of April, 1917.

.iosnrii scnvvniss.

Gopes o this patent may be obtained for five cents each., by addressing the Commissioner of Patents.

Washington, D. G."

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