US825402A - Broom-sewing machine. - Google Patents

Description

, PATENTED JULY 10 A. E. MILLER. BROOM SEWING MACHINE. APPLICATION FXLED MAR.19,1903.

QSHBBTwSHEET 1.

.A. E. MILLER.

BROOM SEWING MACHINE. APPLICATION IILED MAR.19, 1903.

SHEETS-SHBET 2.

ghruen ljor,

wi'iueaaca attoznu a PATENTED JULY 10, 1906."

No. 825,402. PATENTED JULY 10, 1906.

A. E. MILLER. BROOM SEWING MACHINE.

APPLICATION FILED MAR.19, 1903.

No.325, o2.- PATENTEDJULKIO, 1 906. A.) E. MILLER; BROOM SEWING MACHINE;

APPLIOATIDN FILED MAR.19, 1903.

9 SHEETSSHEET '4.

am hi... liiliiiilimmm I e lllllllllllll L v ingfifillll N0-825A02IU PATBN'I ED JULY 10, 1906.

A. E.- MILLER. BROOM SEWING MACHINE.

APPLICATION IILED MAR. 19, 1903.

9 SHEETSSHEET 5.

i1 Hoznu a No. 825,402. PATENTED' JULYlO; 1906..

A. E. MILLER.

BROOM SEWING'MAOHINE. APPLIGA TIOQ FILED MAR.19. 1903.

9 sinus-SHEET sl wQ/Vihmmam PATENTED JULY-10, 1906.

A. B. MILLER. BROOM SEWING MAGHINB. APPLICATION FILED MAR.

9 SHEETS-SHBET 7.

we. 825; 102. PATENTED JULY 10, 1906.

AfE. MILLER.

BROOM SEWING MACHINE.

APPLICATION FILED MAR.19, 1903.

9 SHEETS-SHEET 8.

PATENT. orrron ssieiv nn'rs, Ton-An IL'roN c'as'sani), or BALTIMORE,MARYLABD. I i ffjBROOM-s-ewme jMAc lNE-u v i f T ail llilUNZ- z'i' 71 121.71concern.- Be it known that I, Axnnnw E. MILLER, a subject of the King of Great Britain, residing at Baltimore, in theSta-te of l\lar vland, have j 5 invented certain new and useful Improve ments in Broom-Sewing Machines, of which the following is a specification. The present invention comprises 'various improvements in machines for sewing brooms, re the object being to produce a machine which is strong and C0111 )aratively simple in construction and to'a ar'ge extent automatic in tion, parts being broken away to show the interior construction.-

iis left side elevation'of the vise and some connected parts. Fig. 5 is a front view'of' the vise proper. Fig. 6 is a sectional view of thesame. Fig. 7 is a left side, elevation of the-vise-feeding mechanism and the automatic stopping mechanism. Fig. 8 is a'plan view,-partly in section, 3 0 of thelower portion of themachine. Figs... 9 and 10 are details showing the automatic stoppingdevices. Figs ll and 12- are'side and plan views,- respectively, of one of the threading devices. 'Fg. 13 is a side view of the other threading'device. Figs. 14 and 15 are details of the brake mechanism.

The various working parts are mounted on a frame, which may be of anv suitable design. As shown, the 'frame 0 consists of a base and several. connected col umns and brackets. V

t The vising mechanism.The, broom is placed ina vise and clamped tightly, after which-thevise isrnoved to the sewing 1nech-'I st tches tornie'd across anism and a line of the broom adjacent to the edge of the vise. The v-ise shapes the -broom-straw tightly whileit is being sewed.

As illustrated. 111 the drawings, the vise comprisestwo jaws 1, which are pivoted at 2 to a ollowshank orflvise-frame 3. frame is provided at its lower QIKlWYWh trunnions 4, aboutwhich it is rocked, the said trunnions being mounted in bearings 5..

. Specification of Letters Patent. Application filed March 9, E L a I a i Q vise-frame at points between. tjh e jaws,

.mits much greater force Yto be brought to bear upon the brooniln the msethan would of the ma chine broom, and clamps the The visee es eem July):

Referring to Figs.,1, 3,}and5, tnqillbe seen that thevise-jaws are spec tivelyconnected with levers 6 byp'airsof links -'Z' 1. ;=i j. T partsG, 7, and .8 aresimilar-at botliends-of the .vise. The levers 6 :are pivoted to the as shownv in Figs. 1, 5, andfi, and.arehohnected by a rod 9 and saidalod is eonneetedwith an elbow-lever 10 by linlnl 1,,1 The elbow-lever is pivoted on a treadle or. f ootlever rl, its horizontal arm being connected with the rod -11 and .its ve1'tica1:,ar1n connected with the short lever 13, 1noun'ted .,oi i lie vis e truniions 4. By means of the levers 1 0 and 13 a spec es ol, toggle .action-lsacleated,,which perbe the case if therodJl 1-;.\v.erej eonn cted di rectly to the foot-levenl la-i The levers .9, f7, and S are also so arranged thatthepoiter which may be 'brou'glit .to .-b,.Q8J .'ill;P.Qll the broom increases as the viseclojses. a-t- Aispring 14 tends constantly to open the'viseand to raise the foot-lever, said;springextending from the lower end ofone ofthe vise-jaws to. said foot-lever, as shown in;Figs. Land 5.

-VVhen the vise closed, it. is temporarily locked in that condition bye-latch 15, Figs. 1 and 3 which engages a projection. lfi oii tlie foot-lever 12-. he latch 15, is pivoted-{on the lower )art of the vise-sl1aink 3,and swings 8 5 with tiie'vise when engagedwviththeEtreadle 12. The vise is automaticallyopened when it moves forward into the .positiolnshown in Fig. 3 by reasonof the :tail? 157 of latch. 15 coming in contact with a tripping-block 18, pivoted to a fixed bracket-.19; Asp ring connection139 with the main :fra1ne,F igi 3, relieves the shock as the vise mo'vesforward.

" Broom-dropping deviceis+WVithin=the vise is'a broom holdingg' and-forming clamp, con- 5 sisting of" a pair of jawsQO and; .-2 l,;Fig. 6.

These jaws are sustailieclwbyverticalirods 22, the lower ends of 'wlnchare connected to a 'collai23, which slides =on the' vise-frame 3.

The collar'23an'd the broom cl-amp are raised ce aseach new broom is ins'ei tedbyi afoot-lever 24, which has a5horizontallyarranged arm 25, adapted to engage withthe=-lowerend of the collar 23, as shown in Fig. .On the c0 lslot connection with the collar, providing for vertical adjustmentfFig'fiiS. set-screw 27 mounted in the collar; andbearing oi'ttheznpper end of the rack, provides for holding the rack tightly in any desired adjustn-lent and" e'n'tly spaced, to provide for different spacing. A.

of the rows of stitches on the brooms.

} pivotally-mo-unted spring-pressed pawl 28 tion 31 of thevising-lever 1-2.

-vi'sing-lever rises as the'vis'e is opened, the projection 3'l'engages the tappet'30; and 1110- engages the teeth of the rack26 and .cooper-- ateswith .said rackto drop the broom from one line of stitches'to the next. The pawl 28 is carried on an elbow-lever- 29, Figs. 1 and 3,

on a horizontal arm of which is'a pivoted tappet 30 which stands-in the path of a 'projec-j When the lnentarilythrows out the pawl- 28, permitting the-inner'clamps and the collarf23 to drop.

Said pawl isimmediately returned by spring '32, FigLLand'engageS the next tooth offthe,

rack. 'In this manner the broomis autoinatielally lowered from one line of stitches to 47 respectively. pivot-ally connected byan arm of'an el-.

- spring 53, whichconnects it with the arm 37 the next;

V'is e fe'eding mechanism.After a broom is vised the'vise is pushed to the rear until it is 'in position for the first stitch. The vise-is stopped in position for the firstv stitch by. a device which is automatically adjustable, ac-

- cording to the width of the broom, as will be hereinafter explained; A bar 36 has its forward end connected to an arm 37 extending out from the vise-frame, and its rear endpasses through a' box- 38, in which it is en gaged by, a clamping-jaw 39, Figs. 4'a-nd 7. The jaw' 39 is periodicallyclamped on the bar by pressure ofa 'pin or bolt 40, carried by acam-lever 41, which bears a'roll 42, ri'dmg on a cam-rlb 43 on. a cam-cylinder 44,

Above the rod 36 isa parallel rod 45, which also passes through the brx 38 and-is periodically clamped similarly to the rod 36 by a'pinor bolt 46, cam-lever 47, and a cam-roll 48, hearing on cam-rib 49. 47 are held tothe [cams by springs 41 and The rods 36 and 45 are bow-lever, which has ahorizontal ,arm or extension 51. The elbow-leverturns about a pivot 52, connected to the lower rod, and the arm 50 'is normally drawn forward by 'a on the vise-frame.

In the operation of the inachine the rods 36 and 45 are alternately cla-i'nped and alter natelyreleased. 'hen the rod 45 is released.

iti's drawn by .thespring 53 against an adjust-able stop 54, saidstop being adjustable by means of a threaded rodpasslngthrough a threaded eye 'onthe arm 37 of the riseframej By the adjustment of the stop 54 any desiredmovement of the rod ,45 relative to the rod 36 may he ha l. and the length of stitch or stop inovelncnt of the vise is The levers41 and thus regulated. When the rod 45 is clamped and the rod 36 released,.'the vise'ismoved forward positively by a. vert-ically-oscilla'ting rail 58, which-raises rolls 5.7Ion arini51, carrying the rod 36 and the stop 54 with it. An

vents overrnotion ofthe vise the vise may bemoved back freely into posi-. -tion for sewing-a new line of stitches.-

by 'a pair of horizontalneedles 60, carried-by heads 61, which slide onhorizontal guides 62,

tached at their-ends to arms63; Theneedlecarried by adjustable, brackets 67.- V

arms .65 are preferably light steel barscarried thy cast arms 68. The arms 68 are connected said guides, as shown, consisting of rods atheads'are' reciprocated by links64, connectep' to arms '65, which vro'ck on-ipivot-pins 66,. The

. 1 Sewing'm echamsm.The.brooms are sewed Y by links69 and universal joints with a crank-f I pin on'a wheel .70, mounted on the drivingl shaft 71.

open hook which engages the ,thread and draws it through the broom as the needle recedes; j The needle-guides are adjustable to 'var-y the angle of theneedles-with relation to each otherfor the purpose of: varying the length of stitch or of sewing thick and thin brooms with stitches of 'the sanre length; The point of intersection of the needle-paths preferably lies in a line through the center of the broom. T 0 effect the angular adjust ment of the needles, the brackets 67 are adjustably'secured to the frame by bolts '72, the guide-supporting.arnis 63 being-so con-,-

in a cam-groove 78 in the cam-wheel 44.

ltigidly-connected with. the arm 74 is canipiece 76, having a serpentine slot into which hen the thr'tuidin'g arm is nioved to its rear- ]nost position, ifilot' 82bn the clampinglinger engagesLand-rests upon a .hxed -nn'83 on 'il1e bracket'f7, thus ra'lsnig'theforward.

Each of the needles 6O has an nected to the upper part of theframe as to lower-end of which carries a roll which runs projects a fixed'pin 79 on the bracket 79. A thread-'cla'mping'finger'SO is' pivotedto the arm 74 and extends across theeyc- 75. This finger is constantly pressed do\\'n\\'ard b a I spring til ,lwhiclfgivcsit a" tendency to clamp the thread againstfhr lmverwall of the eye. J

.broom.

l'ro'm its support, permitting spring 81 to. Durmg the balance ol the lorward movement ol press the linger and clamp the'thread.

the arm and the like part oi its rearward movement the thread is held in the eye while it is arried around and engaged withthe needle. The eye is provided with a hook or support 75", .in which the thread is placed 1 erates by the operatorbel'orethe first 'stite-h is taken. The lelt-hand threading device (illustrated in Fig. 1 11 is cmistrueted and'operated in the same manner as the right-hand device, with the exception that its parts are inverted, and it has no tln'ead-stmpoi't, such as 75.

.iutomtltir starting (It ,Ulflq POWOI is applied to a driving-pulley 8 1, which normally runs idle. This pulley is engaged and dis connected l'rom'the driving-shaft 71. by a eluteh of suitable construction, which clutch is operated by a clutch-lever S5, pivoted at so. Fig. 3. The clutch-lever is connected by a link so with an elbow-lever 87 and a spring SS. l ig. b, constantly tends to draw the clutch-lever forward to throw in the clutch and start the machine. The clutch is normally held open by astop 89, which engages a shoulder 90 on link 86. The stop 89 is thrown into the path of said shoulder by a spring $11, which is connected to a'lever 92, to which said stop is pivoted. When the stop 89 is withdrawn from the shoulder 90,

the spring 88 immediately closes the clutch and starts the machine. The machine is arranged to automatically start sewing when the broom is in position for the first stitch. This position varies with the width of the broom, and means are thereforeprovided for starting which are governed by the width of the broom. v

Rei'errin to Figs. 3, 4, and 5, 93 indicates a pair of hngers or thread-supports which engage the forward and rear edges of the These fingers are pivoted to arms 91, which are connected and drawn toward each other by a spring 95. Each of the fingers 93 has a downward extension 96, which isnormallyheld against a pin'97 by aspringtlS. The lingers are thus held normallyin position to engage the edges ol the broom just above the vise. Each of the arms 94 is provided with an antitrictita'i-roller 99, which engages a cam-surface on the left-hand vise iaw. hen the vise is thrown open. these eams throw back the-lingers $13 from the vise to permit a broom of any width to be inserted. The cam-rollers tttl are adjusthen the arm st arts to move l'orzontal extension 1111, provided on its rear end with an inclined toothed surl'aee 102. which surl'aee is adjusted up and down. aecording to the width ol' the broom in the vise. A lever 103, pivoted to.,the vise at 104. has

at its lower end an adjustable tooth 111.3.

able with relation to the arms 9- so that the lingers 113 may be thrown back to dill'erent distances.

The forward arm 'tJ-t has a hori- 1 the rhino by engagement ol' an angular piu Figs. 4.- o". and t). onv the upper end ol the 'arm -1()T with the hook 1'21 on a rod ll'J.t-ot1|ieet--.

adapted to engage the teeth on the extension 101, Figs. 3 and -l-. The lower end ol le ver 1015 is connected by a link 1(lt' to a curved arm 107 on the upper end ol' a roekshall 1t).\. Thelower end of this rock-shalt carries an arm 109, which hasa piit-and-slot connectionwith a link 111), which is rigid with the stop Sil The automatic startingoi the machine up as follows: As the'vise is closed the fingers 98 engage. the jaws ol the broom. and the toothed suriaee 102 is adjusted aeeording to the width oi the broom. The vise is then moved to the rear to begin sewing. As it reaches the proper starting position one ol' the teeth 102 engages the tooth 107) and moves it rearward, slightly rocking the shalt 10S, Figs. 3,1-1, and S, and drawing the stop 89 away lrom the shoulder 11), thus permitting the spring on to immediately throw in the clutch and start the maehine.

Automatic stop any (It rms..\ ram-roll .111 is carried bv an arm 111" on a verticallyreciproeating roi'k-shal't 111. The lower end of this shalt is eonneetedby a spring-link 112 with an arm 11 extending rearward l'rom the vise-irame. Figs. J "'and 111. The shall- 111 is normally raised by a spring 114. and it is pulled down by the arm 113 t:t('l| time the vise is moved into the sewing position. When the shaft 111 is pulled down. it is latel ed in this position by an arm 115.- loose on shalt 106, the arm 1 15 being operated in one diree tion by a spring 111'). Figs. 4; h. t). and 111. Beneath the arm 115 is a seeond arm 11?. whieh is last on shalt 10S and whieh carries a set-screwengaging the tail 115 ol' the arm v 115. \Yheu'the shaft 108 is rocked in one direction, the arm -1 15 releases the vertical shaft 111 and permits the spring 11-t to raise it until the roll 111 moves into the path of the ram projection 11%) on the rear ol' the disk 70. Cam 119 thus roeks shalt 111. and the arm 111" engages the lever T and inoves the link 86 to the 1ear.-tl1us throwing out the clutch and stopping the maehine. The stop machine from starting until a new row ol stitches is to be sewed. The shalt 1().\'ls

rocked tor the purpose.ol'stoppitig the maed to one of the arms $11 on the rise. The

1 rod 122 is drawn lorward' by the vise. and its positionl with relation to the vise depends upon the width ol' the broom. as will be evident l'rom an inspection ol' .l' ig'. -1. The stopping ot' the maehine is therel'ore regulated by width of the broomiii mueh the same S9'engages the shoulder tit) and preventsthe manner as the starting is so regulated. To

efl'ect the disengagement of therod 122 from the pin 120 at the proper-momentjust as p the clutch is released.a lever 140, Figs. 3, 5 8, 9, is provided. The lower end of lever 140 is tied to lever 92 by a spring 141, and its upper end has an inclined edge 142.v I/Vhen lever 92- moves to the rightat the instant the clutch is opened-the edge 142 raises the rod 122 from pin 120, as shown in .Fig. '9.

The machine may be started and stopped by hand whenever desired, for which purpose a hand-lever 123, Figs. 1, 3, and 8, is pro vided. This lever is pivoted concentrically 1:5 withthe lever 87, and-its rear end 123 is arranged to bear against said lever 87. Lever 123 is normally held in the position shown in Fig. 8 by spring 124. 'hen, the lever'123is moved to the right, it rocks lever 87 and stops the machine. hen lever 123 is moved to the leftinthe direction of the arrow, Fig. 8,it rocks the lever 92 hymeans of a connecting-link 125 and withdraws the sto 89, thus starting the machine. To effect quick stoppage of the machine after each row of stitches, I have a brake which is aa1tomatically applied. The brake devices are shownin Figs. 1,14, and ,15. On opposite sides of the fly-wheel 70 are brake-lelfivers 130, which are provided with suitable brake-shoes. Springs v131 tend to hold the shoes free from thewheel. A link 132 is con- Fected with one lever 130 and has an opening thrc ugh which the free end of the other lever passes. Pivoted to link 132 is a lever'having its longer arm 133 connected by link 134 with the arm .87 and its shorter arm 135 bearingon the end of the lever 130, which passes through link 132. It will be evident that when the lever 87 movesrearward to open fully drawn together and'clamped upon the wheel 70, and the machine thereby stopped.

Having described my invention, what I claim, and desire to secure-by Letters Patent, 1s

1. In a broom-sewing machine, the combination with a vise and suitable levers for opcrating the vise, of toggle-levers forincreasing the pressure on the vise when closed, and a treadle-for operating the vise,one of said toggle-levers being pivotedon said treadle.

2. In abroom-sewing machine, the combination of a pair of vise-jaws, devici as for opening and closing said jaws, and a treadle for operating said devices, said device 5 including elbow-lever pivoted to the treadle, a lever connected to one arm of said elbow-lever and a rod 11 connected to the other arm of said elbow-lever.

In a broom-sewing machine, the-combi- 5.11:. tion with a vise-frame, of vise-jaws pivoted said frame,'a treadle also pivoted to said ne, a latch for the treadlepivoiaed to the the clutch the brake-levers-130 will be power-.

ice-frame, and a block pivoted to the mainframe and arranged to trip the latch on co'm towhich said clamps are connected, a rack vertically adjustable upon said slide, and a set-screw carried by the slide and bearing upon the upper end of the rack, for the purpose set forth.

5. In a broom-sewing machine the combination of the swinging vise-frame, the viseaws, the inner broom-supporting clamps, the rack supporting said clamps, the pawl pivsaid rack, the tappet 3O pivoted to said pawl,

.oted to the vise-frame and cooperating-with the treadle for operating the vise-jaws, and I the arm on said treadle for operating said tappet, for the purpose set forth.

6. In a broom-sewing machine, the combi- 1 nation of a swinging vise-frame, a feed rod 36 connected to said vise-frame, a second feedrod, a link connecting said feed-rods, a stop carried by the vise-frame and adapted to limit the movement of the second feed-rod, and clamps arranged to alternately grip and release said rods. 7. In a broom-sewing machine, the combination witha swinging vise-frame, of-feed mechanism comprising a rod connected to the vise-frame, a second rod parallel withthe first, an adjustable stop for the second rod movable with the vise-frame, a connection between said rods, a stop carried by the second rodfor limiting the movement of said vise in one direction, and clamps 'for alternately gripping and releasing saidrods.

8. In a broom-sewing machine, the combi-' nation with a vise-frame, of parallel rods one of which is connected to the vise-frame, an elbow-lever having one arm forming a link between said rods and a second arm provided with a roll, an oscillating rail for operating said elbow-lever, and adjustable stops for both of said rods.

9. In a broom-sewing machine, the combination with a pair of pivotallymounted visejaws, of a thread-support arranged tomove to and from the edge of a broom carried by said jaws,-and a cam carried by one of'said' 7 arms 11. In a broom-sewing machine, the combination with the Vise, and means for opening and closing the'same, of a pair of pivoted arms 94 arranged in front and rear of the vise,

.aspring tending to draw said arms together,

means for automatically throwing said arms away from the vise on completion of a row of stitches, thread-supports pivotally carried by said arms, and springs for holding said thread-supports in contact with the vise-j aws.

12. In a broom-sewing machine, the combination with sewing mechanism, and a vise movable to and from the sewing mechanism, of means for automatically starting the sew-, ing mechanism, said means being controlled by the width of the broom in the vise, whereby the first stitch is properlylocated.

'13. In a broom-sewing machine, the combination with the sewing mechanism, of a vise movable to and from tl e sewing'mechanism, a part pivotally car 'ed by the vise and bearing against the edge of the broom and automatic starting mechanism controlled as to its relative time of starting by the position of said part.

14. In a broom-sewing machine, the combination with the vise, of a thread-support arranged to bear against the edge of the broom in the v'ise, a lever upon which said thread-support is carried, a series of teeth on said lever, automatic starting mechanism,

and a pawl. connected with said mechanism and adapted to engage said teeth, for the purpose set forth.

15. In a broom-sewing machine, the combination with sewing mechanism, and a visei'rame and vise movable to and from said sewing mechanism, of a clutch connecting the power-wheel with the sewing mechanism, a cam for disconnecting said clutch, a camroll normally out of the path of said/cam, a latch for holding the roll in said normal position, means for operating theflatch on completion of a row of stitches, whereby the camroll is thrown into position to be-operated by the cam, and means connected with the viseframe for withdrawing the cam-roll from the path of the cam.

16. In a broom-sewing machine, the combination with sewing-mechanism and a vise movable to and from said mechanism, of automatic stopping devices comprising a par;

or pin 120, and a latch 121 for operating said part, said latch being movable with the vise, and means for positively disconnecting the latch from part 120, at the moment of stopping the machine.

17. In a broom-sewing machine, the combination with the stopping mechanism and the latch 121, of the lever 140 arranged to positively disconnect the latch from the stopping mechanism as the clutch is operated to stop the machine.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

7 ANDREW IE. MILLER. Witnesses:

JAMES A. \VA'ISON,

Enw. MCCAFFRAY.

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