US911234A

US911234A - Jacquard mechanism for embroidering-machines.

Info

Publication number: US911234A
Application number: US32305706A
Authority: US
Inventors: Joseph A Groebli
Original assignee: KURSHEEDT Manufacturing Co
Current assignee: KURSHEEDT MANUFACTURING Co
Priority date: 1906-06-23
Filing date: 1906-06-23
Publication date: 1909-02-02
Anticipated expiration: 1926-02-02

Description

. J. A. GROEBLI; .JAGQUARDMECHANISM POB, EMBROIDBRING MAGHINBS.

l APLIoA-TION FILED JUNE 23,1906.l

.Patented Feb. 2

R SHEETS-SHEET 1.

Winesses:

UNITED STATES yiPaTirixiT OFFICE.

JOSEPH A.;GROER'L1, or NRW YORK, N. Y., AssrGNoRTo THE KURSHERDTMANUFACTURING f oOMrANY, or New YORK, N. Y., A CORPORATION or' NEW YORK.

JACQUARD MEoHANrsM FOR EMBRornERING-Mncnmns.

Specification of Letters Patent.

Patented Feb. 2, i909.

To all 'whom it may concern: i I

Be it known that I, JOSEPH A. GROEBLI, a citizen of the United States, residing in the borough of Manhattan, city, county, and

Sta-teof N en' York, have invented 'certain new and'useful Improvements in Jacquard Mechanism for Embrcidering-Machines, of

' which the following is a specication.

My invention re ates to jacquard mechan- Ism for embroidering machines and has' speclal reference to 1m roving the Jacquard operated stop )ing mec anism of the general.

type shown, escribed and claimed in U. S. Letters Paten-t No. 607,234, granted to The Kursheedt Manufacturing Company..4 i Itwill be understood, however, that I do not intend to conne the present invention strictly to improvements upon the machine referred to in the said patent nor to the machine set forth in U. S. Letters Patent No. 528,632. p g

The primaryI bbject of the present invention is to produce 4a sto -motion mechanism in which 4tvvo classes ofstops are rovided for ,one class being those produced y hand, and b the normal functions of the machine; and the other what are called safetysto s being those arising from a vital defect in t e operation of the machine necessitating its immediate stop' age With certainty toavoid accident. In t 1e second class of stops itis' of the greatest importance that the-operation of stopping the machine should take place-at once and` with absolute certainty., To this end I have devised means whereby the auto matic safety stop mechanism is as a' Whole, vhen thrown into action, positively actuated by power derived from the machine and locks itself out of action upon the completion of the stop thus .holding lthe machine at rest before any damage can occur.y

In the accompanying drawing I have shown Va mechanism in which one form of my invention is embodied;

awa plan view of a power-driven j ac uard mec ianism of the type and character o that shown in the two Letters latent herein before recited. Fig. II is a broken away side. elevation'cf the same. Fig. III is an endfelevation of a portion of the machine embodying positively acting rautomatic safety stop mechanism. Fig'. IV is a similar vewbroken' away and in section. Figs. V and `VI are In this drawing: Figure I is a broken.

sectional side views vof the said mechanism showingthe parts in two different posiof; D2, the setting-handle; D1?, the yoke of lthe hand setting mechanism D3 D, the

shafts carrying. thespur-gears cooperating *with the moving racks J3. In the present Icase the safety connections are lettered L23 and 0.24. f

H is the moving-arm, which by suitable mechanism is cou led with the racks to move them, and thus effect the fabric-frame movements, and P is the shaft, operated in conseuence of the failure of the shear-blades .to c ose. Movement of the shaft P moves the safety 'connection 0.24. `The other safety connection w23, as in thecase in the mechanism illustrated; in my said l, patent, vleads to the tions, and Fig. VIIlis a sectional plan view of tracer .which traces the pattern, as will be seen by referring to Fig.v of my said patent. 'The ordinary or normal stop devices are, in the present instance, las follows: R is the band or cord which runs ,around the machine and which upon bein ,ulled Will eifect the stopping orstarting `o '-t le machine. This is motion and coperates I'th the 'mechanism for stopping the machine; as will be hereinafterdescribed. The other stop device comprehends the jacquard litter 7c", which is operated by the jacquard to lift the hook 33 as Will-be explained. By referring to Fig. 1 it will likewise be noticed that adjacent to the shaft F, which serves tb shift the double racksv J3, 6to., is a rising-and-falling pin or bolt F10, Which serves to disconnect some of the* double racks when it is desiredto set the mechanism by the handle D20,- as fully set forth 4in my patent aforesaid..

All'these parts which I have just referred to and designated are similar, have similar functions to and operate similarly to the parts designated by the same reference-letters in my said patent, and it will be understood,Wit

outfurtheiexplanation that these,

the actuating means fori the ordinary stop n ico 60 lip 32.

parts have connected with them correlated mechanism for effecting the full functions set forth in the said patent.

The shaft I carries the usual fast and loose pulleys 1 '2, which may be belted to a counter-shaft or other source of power in any usual manner.

loop or eye 3 of a belt-shipper 4, which is shown as plivoted at 5 to a bracket 6 and pro# vided ,wit a rearwardly-extending arm 7,

notched at 8, to receive the c'arn 9 of an arm or cam-lever 10. This cam-lever, as is clearly shown in Fig. 2, is double-armed and is preferably 'made in the form shown-that is to say, is providedwith a hub# 11, from which an arm 13'projects upwardly. YThis arm 13 is provided at or near its extremity with bearings 15 16. 'The arm 10 may be hung loosely Yu'jion a stud 17 on the main A frame A. This arm or cam-lever 10, as will be understood, by bearing against the tailieee or arm 7 of the belt-shipper shifts the belt from the fast to the loose pulley.

Sliding in guides a. e on the bracket 6 or the main frame of the machine is a holder I) for a brake shoe c, which is ada ted to bear aglainst the. inner face of the pu ley, so that W en actuated as hereinafter described it will contact with such face and bring the machine gradually to rest. The yprimary means for actuating the brake'c is arising and falling rod d secured at one end to the brake shoe holder and at the other to a coupling c into `which it is screw threaded. A screw f provided with a ca g is carried by the coupling and a spring 7i 1ntervenes between the 'said ca g and the coupling t lcarried by the vertically sliding rod j. The rod d carries a collar lc having an '40 arm or abutment Z which is adapted to ceoerate with a cam m on the hubo of the belt s Lpping lever Il.

stud 17, and is provided with a siaft 22 l made rigid therewith, running across the machine and provided at its op insite end with an arm 23, with which the and R of .the hand stopping mechanism is connected. The

arm 1.3 carries a trip 24. This trip 24 is pro- 5'01v1ded with a stud 25, lwhich is journaled in the bearing 16 of the arm 13, andis likewise provided-with an arm 264 and with toes'or abutments 27 28, one of which abutments 28 is rounded to allow the trip-arm 21 to slip past when itis moved' to the left. The arm ,13 is also provided with a coupling-piece 29,

which has a stud 3l) journaled in the hearing with a hook-shaped end 38, adapted to be The belt passes through theA trip-arm 21 is loosely hung u on thev engaged with the ledge or -lip 32 of the coupling 2L This rod or c npling receives an oscillating movement from the arm .ll and is under direct control of a jacquard connection lc", preferably of the. ty pe illustrated in my lis as follows: It will be understood that swinging the arm 1() downward will cause the belt to be shipped and the machine stopped.4 This shippingmay bo effected in several ways. It may be done by hand by moving the cord lt, thereby swinging the arm 23 and its connected t'ripearm 21 to the left. This trip-arm striking against the. toe 28 of the tri) swings the arm 26 of the trip from under tie step 31(L of the coupling :ind allows the coupling to fall until ils lip 3i' is in' such a position as to he'engaged by the hook 34 of the oscillating connection 32S. As this` oscillating connection 33 moves to the right the coupling will slide `onder the hook, -which will drop behind it,jand as the oscillating connection moves forward it will pull upon the said coupling and carry the said con pling with it, thereby swingiiw the arm 13, which is connected to the coupling, to the left and swinging the arm 10 downward it may be -done bythe jacquard at' preiletermined times by lifting the jacquard connection lr" to raise the hook 33 into engagement with the lip 32 of the coupling piece 20. The n1ochanical effect of swinging the arm 10 downwardly is to cause its cam 9 to act npon the arm 7 to `swing the belt shipper, and the com 9 on said arm to raise the rod d to put the brake into action. A reverse movement of the cord R and arm 23 will start the machine. This is usually done by hand after the normal vstops vim-thc stop made by hand or the stop made by the normal operation of the jacquard.- The automatically operated stop motion, which I call the safety stop in contradistinction to the jac unrd stop and hand stop is operated entirely )y positively acting means and automatically comes into action when by reason of some emergency, the machine must be stopped at once. l will lirst describe the moans for throwing it into netiou, and then the ineens itself. 1

Mounted in a sleeve upon thel frame work of the machine in a shalt o mii-lying a huh q lnwingit lng i" receiving the rod ai" provided with a coller fr 'for actuating the lng r to oscillate the shaft p. The shnfl p is also pro The arm 13 is liken iso prol llio adapted to cooperate with the rod w23 to swing the shaft'p. `An arma is fast on the shaft pand is provided With a rod o which it is adaptedr to move longitudinally in a bracket-or support w on the main frame of the machine. of the rods @23 or a2* may be actuated to throw the stop motion mechanism into action.

which coperates with the' shear blades. It will be remembered that in order toputv on the brake it is necessary to raise its support ing and actuating rod alle rlhis is done auto.

adapted to receive a helical spring 43" adapted to-bear upon the lateral arm 44, on the tail of a pawl 45 pivoted at 46 and having a tooth 47 adapted to'engage in theratchet'y 40. The pawlis likewise provided with a nose 48 adapted to rest upon the e'nd or other ortion of the rod v by which it supporterl clear of the ratchet. The lower end 49 of the rod y' rests upon the edge of the cam 41 and is given a lifting movementas will be hereinafter explained at the beginning of the movement ofrotation of the cam, so as to lift the rodd and apply the brake blocker shoe to the rim of the fast pulley. Sliding freely" I in the frame ofthe machine is a rod 50. This Tod-, 50 is provided. With an arm 51v which takes over the arm 10 and a pointedpin 52 which normally restsin a recess 53 on the side of the disk cam. 41, being held therein by bearing against the plate or hanger 52". The rear end of the pin52 cooperates at the end of its movement with the edge 52a of thev hanger or plate 52b to firmly lock the parts in= place as Will be explained, so that after the safety stop has completed its function, vno further movement of the jacquard can. take place until the lock has been released and the mechanism resetbya competent mechanic.

The operation of the mechanism just described is as follows: ."hen the machine is in operation the belt is on the fast pulley 1 and the arts are in thel positions shown in Figs. l, lnl and V. A movement ofeither of, the rods a, a24 Will oscillate the shaft p and withdraw the end of the rod v from beneath thenosc 48k of the pawl 45, and.

- allowthe pawl 45 to dro to engage its tooth Y 47 in the ratchet40.

the ratchet to the cam 41 so as to rotate with 65 it. Movementof the cam 41v effects the folj lt will be understood that either In the present case, `the rod @23 isconnected to the tracer ofthe fabric frameand the rod af is connectedtothe shaft P his serves to cou le 'j vided with a hiib s having a ldg or bracket `tllirvving operations: The pin* 52 of rod. '50

` being-positively pressed into the socket 53 in the cam; '41 movesv With the belt and when the 'shipping is completed the bracket or hangerv to lock the mechanism.

the rod j, which operates to apply the brake shoe by lifting the rod d. ln the automatic operation' of applying the brake shoe the 'spring 'coupling intervening between the elastic coupling, wearfof the brake shoe is compensated for. 'After the automaticY safety st motion mechanism has gone into action an 'has completed its function, it .will be necessary to reset it by hand which is v--s cting the embroidering machine to correct tliil trouble which caused the mechanism to go into action. Such is not the case with the hand .and jacquard stops.

Claims i.-

- 1. The combination of a pattern controlled apparatus and a pattern mechanism therefor lhaving a normal stop-motion mechanism, a safety stop-motion mechanism and means for positively actuating the said safety stopmotion mechanism and actuated by a portion of the said pattern controlled apparatus.

having a normal stop-motion mechanism,` a

safety stopmotion mechanism and means derivingits power from the pattern mechanism foroperating said safety stop-motion- -mechanism and actuated by said plattern controlled mechanism.

mechanism t ereforl having a normal non# locking stop-motion mechanism, and a safety. locking sto -motion mechanism with means for positive y operating the said locking stopmotion mechanism and said latter means bethe said pattern controlled mechanism.

4. The combination of a pattern controlled motion mec anism, said pattern mechanism'.

5. The combination of a pattern controlledhaving a normal stop-motion mechanism,l a

deriving its portier from the pattern mechanf pin 52 restsagainst the stop 52@l ontheI The movement-also causes thecamto. raiseusually done by a skilled mechanic after in- 2. The combination of a pattern controlled 7 apparatus and a `pattern mechanism therefor a portion of the he combinationof mechanism` con-v trolled by a attern mechanism, a pattern apparatus and a patternl'mechanism therefor'y safety stop-.motion mechanism and means l8O rods d and y' .permits a slightlostmotion which is taken upon release. By having an' ing adapted to be actuated by a portidnoff pparatus and a pattern mechanism therefor having a normal'stop-motion mechanism, a' safety stop-motion mechanism and means for positivel 4 actuating the said safety stop.- last' means beine adapted to be controlled by a part of the said:

ism for operating said safety stop-motion mechanism, said' latter means being controlled by a portion of the pattern mechanism.'

6. The combination of mechanism controlled by a pattern mechanism, a pattern 'mechanism therefor, having a normal nonlocking stop-motion mechanism, a safety 'locking sto -niotion' mechanism and-nieai'is 8.- The combination in a pattern controlled apparatus el" a plurality el' stop-motion devices, the operating means et one oiY which stop-motion devices .is driven by power derived from the machine, means 'lor locking' said positively driven stop-iiiiotion device and means whereby the operation el" the positively operated stop-motion will lock the other stop-motion` t). lii a stop.iiiotion iiiw'iienism, the eem-A vbiiiiitieii oi belt shifting means, braking means, a rotating ratchet, a normally stationary pawl having means lor :uitiiziting the belt-shitting and braking means, and means allowing the engagement of the pawl with the ratchet to secure movement of said paw] and its allied devices.

l0." Ina stop-motion mechanism, the coinbination of a belt shipper, a brake, and coinnonnieans for operating the belt-shipper and brake, saidbrake being adapted to be yoperated independently of saidconinion operating means. A

l l. ln a stop-motion mechanism, the conibination of a belt-shipper, a brake, a conmion .iositively operating means for o erating said belt-shipper and brake and a loe i for locking said devices after such operation.

12. ln a stop-motion mechanism, the eembination of a ratchet with means for rotating the saine, cam means, a pawl in operative connection with said cam means and adapted to engage the ratehet, means for e`ecting engagement between the pawl and ratchet, a stopping device, and an operating connection between the cam means and the stepping device.

13. ln a stop-nietion-mechanism the coin- Vbination ot two different characters et independ ent-ly operated stop-inotion mechanisms, a common means for actuating them, part oi' which constitutes an interlocking means, and means for locking the said operating ineens when it has operated;

JOSEPH A. GHOEBLI. hlitiiesses:

Tfno. D. WEEKS, (liso. E. Mense.

Ai (l