US1536790A - Bead-sewing machine - Google Patents

Description

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J. A. GROEBLI BEAD SEWING MACHINE Filed Jan. 12, r 1924` 3 Sheets-Sheet 2 Q' 'U' f 3 32 540 31 l 9 30 O 37 ff 53 wvantoz.

3513 191,0/ GMM/mm3 www J. A. GROEBLI BEAD SEWING IACHINE Filed Jan. 12, 1924 May 5, 1925.

3 Sheets-Sheet 5 Swuwtoz, ahw d* gf/MLM. kw www Patented May V5, 1925.

i 1U NiTED STATES IPArmar ori-fics..

' JOSEPH A. GB01-intr, or NEW YORK, N. Y.

BEAD-SEWING MACHINE.

Application led lanii'ary'l, 1924.V Serial No. 685,772.

To .all 'whom .it may concern:

Beit known that L'JOSEPH a citizen off .the United States, and `a :resident ofthe city, county, and .State of New York,

have invented vcertain nevi7 and useful Im proveniente in Bead-Sewing- Macfhines, of

which the folloavingisasspecifieation.

My vinvention relates to. that class of fbead sewing machines vwherein 'beads loosely strungkupon :a thread are lfed along the thread, While the thread itself -is .carried forward g and my improvements `are particularly directed to means for` automatically controlling `the slacfk kand travel lof the bead thread, in connection with and ,through the beads, so -that the .progress of the thread sli-al1 besubstantially uniform, and ,the disadvantages larising .from 'having too much or too little free thread, as it is drawn off the reel, shallfbe avoided.

l These improvements Aare advances in the art Aover what has been shown, `for instance, in my Letters Patent No'. 1,445,764,0f February 20th, 1923; and .theapplication lof 'my present inventions will be readilycunderstood by referring to :my .aforesaid patent for an .illustration .of those parts of the .old mechai. nism which are not shown lin the drawings 'illustratingthe novel features 1of -I-ny iin-` proved mechanism; Fig. 2 `is a srmiia-r vie-iv y of this application.

In :the drawings, Fig. 1 is an elevation taken fromztlie reverse side .of they machine, some of the .driving y.mechanism being also shown ;:F1g...3 is fan elevation looking .to Athe yright onl Fig. l, the lowerportion of the. mechanism ibeing .omit-ted.; and Fig. 4 is a detail in :pian of part ofthe ,operating mechanism.

In lall= the' figures similar parts are 4designated fby corresponding reference numerals.

The shafts 10 andy 13 correspond respectively to the shaftsltband 130i my aforesaid paten-t, and indicate means' .by which the operative poweris transmitted to the feeding and stitch forming mechanisms. The functions to be performed by `the itu'be 53 corresponds with those .of the tube similarly numbered in my. .aforesaid patent.

From the driving shaft l0, .through the gears' ll `and 12, shaft l14n-and gears and 1G, connection is made with the shaft 17, y

through which the mechanism for tensioning .and unwinding the bead Ethread and feeding the beads is actuated.

The shaft- 17 carries acam 25 against whichy travels a roller v26. von an arm 27 pivoted at l28 to the frame Work of vthe inachine, '.the roller beinglhe'ld to dutyy on the cam by suitable means suoli as a spring Q9 between the arm Q7 and the mach-ine frame. f

`To one end ofthe arm 27 is pivoted one end .of afrod 30,. `which, atxltsy other end, is

pivoted to one arm .of ,the lbell ,crank 3l and Y journalled in the frame lof the` machine, the v other arm 32 ofthe bell crank `carrying a transverse element 33 and corresponding in function with :bead feeder G4 of my aforesaid lpatent, the .cooperating bead feeder 34 being also pivoted to the khead `,of `the machine, so that'it may be raisedby tliearm 32, ,andallowed .to drop again, to allow the Y .beads to pass the feeders @one by one.

vTo the arm 3l vis also pivote-,d a `driving pawl 37, `which engages with fthe ratchet -Wheel .38.011 lshaft 39', journalled in the frame avorl of @the machine, and @which carries a feed Wheel 40;, over which the thread .and beads travel .to ithe tube .53 through .LSU

Wliichzthey pass doivn to the stitching mechanism. v i

YVhen, therefore, at-he shaft 17 Aand cam Q5 revolve, the bead feeders and 34 will be `reciprocatedl once, and the feed Wheel 40k will be turned one step .foreach revolution of the shaft 17. y

'The shaft 17 yalso carries another cam 45, against which .traxf'e'ls .a roller 46 on arm 47 of pivoted bar 48, the roller being kept to duty rby a suitable spring 49 between the bar and lthe machine frame.

`Wliichalso .carries the thread andl bead reel fore, rock the arm 51 up and down, with a uniform stroke for each revolution 0f the shaft 17.

In a bracket 60, supported by the frame workof the machine, is journalled a shaft 6l carrying an arm G2, provided at its free end with a cam 63 against which rests a pin G4: carried near the free end of the pawl 54E, so that if the cam is rocked down it will, through the pin (34, push the pawl out away from the ratchet wheel 55, and will prevent the pawl from engaging with the ratchet wheel until it has slid some distance down the cam, the distance depending upon the extent to which the cam is depressed. rThe shaft 6l also carries an arm GG on the end of which is journalled aroller 67 behind which passes the bead thread 68. The arm GG and the cam 63 are normally rocked inward toward the ratchet wheel 55 by a spring G9 stretched between an arm 70 on the shaft G1, and the frame work of the machine.

It will be seen, therefore, that while the stroke of the ratchet arm 5l will be uniform in extent for each revolution of the shaft 17, the extent to which it will turn the ratchet wheel 55 will be governed by the inclination of the cam 63. If the free part of the bead thread 68 is quite long, the roller 67 and arm 66 will be swung out by the thread, away from the reel- 57, and the shaft Gl will be correspondingly rocked, raising the cam 63, so that the cla-w of the pawl 64;

' will engage with the ratchet wheel 55 higher up than is, for instance, shown in the figures, which indicate the position of the elements with a fairly long free thread. Thus, if in the position of the parts shown in the drawings the ratchet would engage with the wheel 55, so as to turn it one cog space, by the raising of the cam G3, so as to let the pawl fall closer to theratchet wheel 55, it will engage with the ratchet wheel further up and turn it an increased distance according t0 the extent to which the cam G3 is raised.

Thus the stitching drag on the bead thread is utilized to automatically accelerate or retard the turning of the reel 57 and the releasing of the thread and beads therefrom, while the driving mechanism maintains a uniform movement of the bead and thread forwarding mechanism, the accumulation of too much or two little free thread is guarded against by providing for positively speeding up the movement of the thread reel, so as to release more thread, as may be required by the stitching mechanism.

I desire it to be understood that the mechanism that I have illustrated is to be considered as a typical and not as an exclusive form of the embodiment of my invention. For it will be understood by those skilled in the art that details of construction and arrangement may be modified, as by the use of mechanical equivalents, without departing from the spirit of my invention as claimed.

Having thus described my invention, what I claim and desire to secure by Letters Patent of the United States, is

l. The combination, in a bead sewing machine, embodying mechanism for forming stitches employing a bead thread carrying loosely strung beads, of a primary bead thread supply reel, means, other than the thread, for positively driving the reel, and automatic means for governing the operative action of the driving means.

2. The combination, in a bead sewing 1nachine, .embodying mechanism for forming stitches employing a bead thread carrying loosely strung beads, of a primary bead thread supplv reel, means, other than the thread, for positively driving the reel, and automatic means, controlled by the drag of the thread, for governing the operative action of the driving means.

The combination, in a bead sewing machine, embodying mechanism for forming stitches employing a bead thread carrying loosely strung beads, of a primary bead thread supply reel, intermittently acting means, other than the thread, for positively driving the reel, and automat-ic means, controlled by the drag ofthe thread, for governing the operative action of the driving means.

rIhe combination, in a bead sewing machine, embodying mechanism for forming stitches employing a bead thread carrying loosely strung beads, of a primary bead thread supply reelJ means, other than the thread, for positively driving the reel, and automatic means, controlled by the drag of the thread, for governing the extent to which the reel is turned by the driving means.

5. The combination, in a bead sewing machine, embodying mechanism for forming stitches employing a bead thread carrying loosely strung beads, of a bead thread reel, reel driving means including a ratchet and reciprocating pawl, and automatic means, controlled by the drag of the thread and including means for limiting the operative engagement of the pawl with the ratchet, for governing the operative action of the driving means.

(i. The combination, in a bead sewing machine, embodying nlechanism for forming stitches employing a bead thread carrying loosely strung beads, of a. bead thread reel. reel driving means including a ratchet and reciprocating pawl, and automatic means, controlled by the drag of the thread and iucluding a cam for limiting the operative engagement of the pawl with the ratchet, for governing the operative action of the driving means.

7. The combination, in a bead sewing ma.-

1,536,722@ v y y 8 chine, embodying mechanism for forming gaging the thread and movable into Varying StitcheS elnploying a head thread carrying positions by the dragy of the thread, and a loosely strung beads, of a bead thread reel cani ymoveable by the arin to limit the en- 10 provided with a ratchet Wheel7 driving gagenient of the` paWl kwith the ratchet means including a reciprocating pawl en- Wheel.

gaging with the ratchet Wheel, and autol matic nicans including aswinging arni en- JOSEPH A. GROEBLI.

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