US1053647A - Stop mechanism. - Google Patents

Description

J. W. ROBERTS, A. P. BREWSTER & B. BRYSON.

STOP MECHANISM.

APPLIOATION FILED MAY 29, 1912.

1,053,647, Patented Feb. 18,1913.

3 SHEETS-SHEET l.

J. W. ROBERTS, A. P. BREWSTER & B. BRYSON. STOP MECHANISM.

APPLIOATION'FILED MAY 29, 1912.

1,053,647, Patented Feb. 18, 1913.

JQJNRS 1c I I 22 ATTOR EY J. W. ROBERTS, A. P. BREWSTER & B. BRYSON.

STOP MECHANISM.

APPLIUATION FILED MAY 29,4012.

1,053,647. Patented Feb. 18, 1913.

3SHBETSSHBBT 3.

UNITED sra'rns PATENT OFFICE.

i HN ROBERTS. ARTHUR BREWSTER. AND B Y smear. Be e Ne JERSEY. I

, sror mnomi'msml Specification of Letters Patent. Patented Feb. 18 1913.

Application tiled May 29, ;;1912. Serial No. 700,549.

saic, in the county of Passaic and State of New Jersey, have invented certain newnnd useful Improvements in top Mechanism; andwc do hereby declare the following to be full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form a part of'this specification.

The machine is of the type which has means for connecting and disconnecting it with and from itssource of power, a clutch being usually employed for such purpose, the clutch having an arm or the like for operating it.

The invention relates further to a goods conducting means for leading the goods to the machine, the conducting means being provided with an operative connection with the clutch operating means, the operative connection 'acting to operate the clutch mechanism to stop the machine when the end of the strip of goods approaches the machine.

Another feature of the invention ,is a

. take-up mechanism for holding the goods taut when coming from the machine, the take-up mechanism automatically stopping itself when the goods is being taken up too quickly and resuming the taking-up when the goods is loose enough to requirc taking-up.

The invention further consists in so connectlng the take-up mechanism with the clutch mechanism that when the machine stops, the take-up mechanism is inoperative. The take-up mechanism is adjustable in the matter of its bite or grip on the goods so that any slipping can be overcome quickly and without stopping the machine.

The invention consists furthermore in certain details of construction more fully pointed out in the specification and also embodied in the claims. f

The invention is illustrated in the ac companying drawings, in which=- Figure 1. is a side view of the supporting structure showing two tablets and having the machine and some of the attachments outlined to show their relative positions. Fig. 2 is a cross-section throughFig. 1. Fig. 3 is an enlarged section throughthe support showing the machine and its attachments in elevation. Fig. 4 is a detail illustrating part of the goods conducting means and the take-up rolls. Fig. 5 is a top view of a matail of the clutch and with the take up feed. Fig. 7 is a detail of the pressure-ad usting means of the take-up mechanism. Fig. 8 is a detail of part of the conducting means.

The supports consist of the uprights 10 which are arranged in double rows and on which are mounted the longitudinal strips 11 and 11". The tablets 12 project with their major portion beyond one of the strips, 11., as shown in Fig. 2, each tablet thus forming a transverse bed or stand'for its machine, the tablets being inclined slightly so as .to project downwardly toward the front of chine.

The mechanism of the machine will be gone into in this specification only so far as to point out its cooperation with the special is adapted for the purpose can be used.

Each machine is provided with a clutch 14 or other means ior connecting and dispower, the clutch 14 being operated by a swinging clutch-arm 15 pivoted to the machine and acting, when swung, to throw the machine in or out of connection with the pulley 16 driven by a belt 17 from a pulle 18 on the drive-shaft '19. The drivc-sha t and thereby act'to drive all of them. A conducting means is mounted at the back of suitable roll or from a boxfas 21, and con- ,sists of side frames 22 between which are mounted bars 23 similar to scrimp bars, and on the to is a spreader bar 24 which has ribs or he ical projections .25 to spread and straighten out the goods. of goods is then passed under a finger 26 which is fastened by a collar 27 to a lever 28 which is weighted as at -29 and passes through a clip 30 on a shaft 31, so that when the finger 26 is allowed to drop by the abchine' Fig. 6 is a perspective view of a d'e the machine 13. This arrangement provides for an easy descent of the 'goods the ma- The strip mechanism, since. any form of machine that connecting the machine from its source of can be conducted under. a series of machines the tablet. It receives the goods 20 from a sencc of goods causing a lack of tension, the weight and lever partly rotate the shaft 3 which passes through the inner strip 11.

The machine 1-3 is provided with a locking arm 32, the locking arm having a notch into which the rod 33 of the clutch-arm 15 fits, and is thereby locked in place. Whenever the lock-bar'is lifted from its position shown in Fig. 3 the clutch-arm snaps up and the machine is disconnected and stops. To return the clutch-arm to its locked position we provide a setting rod 84- with a curved arm 35 so that when the curved arm is swung it carries with it the rod till the rod 33 is engagedby the notch in the locking-arm 32 and the machine is again in operation by' reason of its clutch l t being connected. To move the locking-arm we may operate a trigger 3G with its knob 37 which is operated in turn by a thread tension 38.

shown and described in Patent No.1,0l2,ti02, dated October-29, 19l2, and no detail de scription is here given of this means of stop-- ping the machine.

Mounted in brackets 38 and 39 is a secondary shaft 40 having a pulley ll thereon, which pulley is driven by a belt LiZ'fI'OIII the pulley l3 011 the shaft 19. On the secondary shaft is tin-eccentric H which operates in a fork of a rocking arm 46, the opposite end of the rocking arm being connected to a stem 17, this stem being arranged to slide on a leaf 18 which is secured on the shaft 31. The tem 47 is provided with a knob 49 or other similar projection, and when the stem is lifted by the leaf to. the stem constantly rcciprocates but is idle. hen the steui is lowered the knob engages the shoulder 40" of the trigger at the trigger being pivoted at .31 and having an end 52 which is A curved and bears on the pin 53 on the locking arm 32 so as to raise the locking tllltltt) release the clutch.

'When the goods passes from the machine it passes over a 'takcup 1'( ll 5 t\\"lllCll is mounted on a shaft 55 which rotates in the stri 11 and the bearin 56. The shaft 5.3 is

raised with it.

Provided with a ratchet-wheel 57. The ratchet-wheel is given a stcp-by-step move.-

mcnt by the pawl 58 on an arm 59 which is secured to the crank (30 ontlie shaft 40. The pawl 58 is provided with a slotted lea l' (31 'tlllOtlQl'l which is passed the curved end (#3 of a lift-arm (33 which is pivoted at its back r end M to a block til on the clutclrarm rod 35). The lift-arm (52; is mounted to swing upward freely and has a nose o5 resting on the block til-so that the arm can act indepcudcntlv ol' the block. but of necessity is \l'hcn the clutch-arm rises the pawl is lifted and the taking-up roll is halted A governor rod (36 rests on the goods between the tablet and the take-up roll. sliding in slotted bearings (57 and having fingers 6S resting on the governor rod, these fingers being 'litlfittl'lttl to the bar 69, which bar extends through the strip 11 and has a lug 7O fastened to it, the lug receiving a stem 71 and supporting a collar 72 of the stem 71 and acting to lift the stem 71 when the tension on the goods raises the overnor rod 66, since the rod 66 operates the fingers 68 which in turn twist the bar 69, The stem 71 is fastened to the lifbarm 63 and when it i-: lifted, the take-up roll stops until the governor rod 66 is low enough to show the need of taking-up, in which position it permits the resumption of the operation of the ratchet 57 by the pawl 58. i

The taking up, by the take-up roll 54, is insured by installing friction rolls 73 which bear against the goods and by pressing them again t the take-up roll. insure their being fed by this roll. The friction rolls 73 are mounted in bca rings 74 arranged on the ends of links 77 the links being on collars 76 which are loosely arranged so as to swing on the rod 77. the rod being mounted in bear lugs 78 and 78 atthe ends. In order to adjust the pressuremf the friction rolls we vsecure the coiled springs 84 so that one end force one of the friction rolls 73 against the tal e-up roll. The other end of the spring bl is fastened to the rod 77, preferably by m mus of a collar 80. Fastened to the rod 77 and arranged to rotate it is a handle 81 ha ving a spring-acttuited tingenpicce 82 llltl'OlIL the end of the linger-piece forming a stud Silt the stud 83 being arranged to en gage the edge of the bearing 78 or any other suitable fixed projection, but when the lingerpiece is withdrawn. the handle 81 can be rotated in the desired direction togive either more or less tension to the springs 84 and 73 against the take-up roll. This provides for a quick adjustment that can be varied while the goods is being fed through the machine and also regulates the pressure for dttlercnt kinds of goods.

The operation of the machine is as follows: The goods is passed from a suitable box or receptacle or from the roll over the conducting means or meclnmismautd is fed undcr the linger Qti so as to raise the weight 21. and is then fed to the sewing-n'iachine, and the hemstitching or other stitching is started on the goods the machine itself of ing-niachincs and feeding the material through the sewing-machiue. and the goods is then fed from the edge of the table underneath the governor rod (it; over the takeup roll 54 and between it. and the friction roll 73, and then down to a suitable depositing point. While the machine is running with an even tension, and goods isbeing supplied to the machine, there is no operathus regulate the pressure of the feed-rolls t'olll' 'c taking up the usual function of sew-' of each spring, as 75), engages a link 75 to Y tion of the clutch which has been previously set in its operativeposition by the operator pressing on the handle 85 ot the setting rod 34. If the end of. the strip of material to be sewed reaches the conducting mechanism, the goods permits the finger 26 to drop, which releases the weight- 29 which in turn acts to swing the shaft 31 which in turn drops the leaf 48. This permitsthe stem .47 to fall and this constantly reciprocating stem hits the shoulder 49 of the trigger 50, which trigger is pushed over to trip the locking arm 32 and the clutch is released and the machine stops. When the locking arm 32 rises it carries with it the lift-arm 63 by reason of the block (it engaging the nose 65, and the pawl 58 is lifted from the ratchet and the take-up arm is also inoperative when the machine stops. It will thus be seen that by. any macha'nism that will operate to stop the machine by reason of the tension of the goods or the thread being taken away, the-clutch arm, when it rises, carries with it the lift-arm 63 and the takeup mechanism halts. If the take-up mechanism, while the machine is running, works too fast the governor rod is raised, the overnor rod in turn liftin the fingers, w iich fingers, by an above escribedr. operation. raise the stem 71 which raises the lift-arm to pull the pawl 58, from the ratchet 57 to haltthe'takc-up roll 54, but this raising of the lift-arm in,,this case. loes notv operate the clutch of the machine, as the pivotal connection bet '(tll the hit-arm 63 and the block 64; pcrnnts this, thus making a ctnistructlon in which the lift-arm can be raised independently or the block 64, but the block 64- can not he "raiscd without taking the liftarm with it.

The conducting means is provided with a gage which is fastened to a bracket 86 sccured by means of the plate 87 to the back edge of the tablet l2, and by means of a slot 88 and a set-screw 89, we secure a sliding plate 90. To the sliding plate 90 is fastened a slotted regulating bar 91 which is held in its adjusted positions'hy a thumb-screw 92, and on the bottom of the slotted regulating bar 91 is a transverse bar 93 which extends across the machine and under which the goods 20 is fed. Adjacent to the bar 9i is a gage 94. The goods 20 is fed under the transverse bar 93 and its end 95 is turned up between the age 94 and the regulating bar 91 so as to %ee'd the node to the hemmerin partly folded cont ition. More of a told can be given by swinging the slotted bar and the gage to an oblique position, using the set-screw 89 as a pivotal point and also as a means for fastening it in its inclined positions.

Havlng thus described our invention, what we claim is 1. A. sewing-machine having means for source of power, a condu ting means for (li- 'rectii'rg goods to the machine, a constantly operating tripping means for the conn cting means, and an operative connection for holding the tripping means inoperative, said connection being held in' position by the goods under tension.

2. A sewingdmu-hine having means for cuinccting and disconnecting it from its source of power, a conducting means for directing goods to the machine, a constantly operating tripping moans fol the connecting means, a gravity actuated operative conncc tion for holding the tripping means inopcrativc. and a finger supporting said connection and resting on the goods.

3. A sewing-nnn-hine having means for connecting and disconnecting it from its source of power. a tripping means for the connecting means, a conducting means for directing goods to the machine. a rcciprocating stem. means on the stem for engaging the tripping means. a leaf for holding the stem from.engagenu-nt with the trip ping means, and an ope 'ative connection from the leaf to the goods under tension for holding the leaf in operative position.

4. A sewing-machine having means for connecting and disconnecting it from its source of power, a tripping means for the connecting means, a conductingmeans for directing goods to the machine, a recipro- 'ating ste n, means on the stem for enguging the trippingmcans, a leaf for holding the stem from engagement with the tripping means, an operative connection from the leaf to the goods under tension for holding the leaf inoperative position. and a take-up mechanism for the goods after passing the machine.

Asewing-machine having means for connecting and disconnecting it from its source of power, a tripping means for the connecting means, a conducting means for directing goods to the machine. a rcciprocating stem, a leaf supporting the stem and on which the stem slides. a knob on the stem adapted to engage the tripping means when the stem is not so supported, and an operative connect-ion holding the leaf in supporting position and resting on the goods under tension and adapted to drop the leaf when said tension is relaxed.

6. A sewing-machine having means for connecting and disconnecting it from its source of power, a tripping means for the connecting means, a conducting means for directing goods to the machine. a recipp'o eating stem, a leaf supporting the stem and on which the stem slides. a knob on the stem adapted to engage the tripping means when the stem is not so supported. a shaft. on which the leaf is inilnntt-d, a levcr on the shaft, and a linger on the lever. the finger resting on the goods when the goods is run rocaling' for ving a step-hy-st'ep movement dcr tension.

7. A.v sewing-machine having means for connecting and disconnecting it from its source of power, a trigger for releasing the,

connecting n'1ea'ns,a conducting means for directing goods under tension to the machine, a constantly reciprocating stem, and means supported by the goods under tension for holding the stem from engagement with the trigger.

S. A. sewing-machine having means for comiecting and disconnecting it from its source of power, a trigger for tripping the connecting means, a reciprocating stem,

means on the stein for operating the trigger,

a shaft, a leaf on the shaft and supporting the stem in inoperative position, a weighted lever connected to the shaft, and a finger eX- tending from the lever and 'restingon the goods. 7

9. A sewing-machine having means for connecting and disconnecting it from-its source of power, a trigger for tripping the connecting means, a reciprtrcating stein, means on the stem for operating the trigger, a shaft, a leaf on the shaft and supporting the stem in inoperative position, a weighted lever connected tothe shaft, a finger tending from the lever and resting on the goods. a rotating secondary shaft, and a rocking arm operated from said secondary shaft, the rocking arm being connected to the stern.

1,0. A sewing-machine having means for connecting and disconnecting it fromits source of power, a trigger for tripping the connecting means, 'a reciprocatingstem,

means on the stem for operating the"t.'rig{ ger. a shaft, a leaf on the shaft and sup porting the stem in inoperative position, a weighted lever connected to the shaft, a

finger extending from the lever and resting on the goods, at rotatingsecondary shaft, an eccentric onthe secondary shaft, and a rocking arm with a fork emln-acingrthe eocentric.the arm being connected to the stem.

ll. A sewing-machine having a take-up roll for goods coming from the n'iachine, means for rotating the take-11p r'oll,'a gov ernor rod resting on the goods, and means connecting the goveri'iorrod and the oper atmg means for stopping therotatlng means when the governor rod is raised.

, 1:2. A sewing-machine having a takeaip roll for goods coming from the machine,

a ratchet for intermittently rotatiilgthe roll, a pawl reciprocating on the ratchet, a

.govcrncr rod resting on the goodgvand a conne tion between the governor rod and the pawl for raising the pawl when the rod raised. 1 i

13. A sewing-macl'iine having a takenip 1 roll for goods coming from the machine, a ratchet on the roll, a pawl prmstantlyreaipto the ratchet, a governor rod onthe cloth,

a bar having-fingers resting on the governor rod, a lag on the bar, and a stem resting on the lug and connected with the pawl to raise it. 1 v

11-. A sewing-machine having means. for connecting and disconnecting itfifrom its source of power, a tripping means for; the connecting means, a take-up roll for goods coming from the machine, means for rotating the take-upro1l,a governor rod're sting on the goods, means connectedwith the governor rod and with the rotating means fordisconneetingzthe rotating means when the governor rod is raised, and an operative connection between the connecting means of the sewing-machine and the rotating means of the take-up roll for stopping the take-up roll, when the tripping means is operated 15/A sewing-machine havingineans .for connecting and disconnecting it [from its source of power, a lockingarm for the dis connecting means, a tripping neans ior the locking arm, a take-up roll, a ratchet operating the take-up roll, a constantlyoperating pawl. engaging the ratchet to give it a step-by-step movement whereby the"go0ds in the machine is given a tension, a' lift-arm secured to the disconnecting means and having "a limited downward movement'on said disconnecting means, the lift-a1'.11'1.heing connected to the 1:1 \vLand automatic means 0 v l eratedihy the tensioniot the cloth for oper ating' the-tripping means ls-Y. Alsewing-n1achinc havingmcans for connecting and disconnecting itv from its solirce'ot power, a locking arm on the .dis connecting means, a trippin means engaging theloclcingarm, a lift-arm projecting frointhe disconnecting means andhavinp a limited downward movement and heing '1 rec to'swing upward, a takeup roll, a ratchetior operating the take-up roll, a constantly operating pawl for the ratchet, the pawl living engaged by the lift-arm, a governor rod, a stem operated from the governor rod and ronnu-twl tolhc lil't-ar1n,a11d means for (nit-rating the tripping llltitllta'.

1s. .\'-4ewing machine havingmcans for connecting and disconnecting it from its and means for source of power, a locking arm on the disconnecting means, a tripping means engaging the locking arm, a lift-arm projecting from the disconnecting means and having a limited downward movement and being; free to swing-upward, a take-up roll, a ratchet for operating the takeup roll, a constantly operating pawl for the ratchet, the pa at] heing engaged by the liftarm, a governor rod, a stem operated from the governor rod and connected to the lift-arm, a cons tantl y movii'ig means for 0 crating the tripping;- means, olding said last-mentioned means"inoperative, said hoiding means he hip-controlled by the tension of the goods.

in. A SOWiI'lgdl']tlttllillt! having a take-up roll, ni'cans for operating the take-up roll, a rod, a link swinging on the rod, hearings in whichthe rod is mounted so that it can ro tatc, a spring attached to the link to swing it toward the take-up roll, a friction roll on the end of the link, the spring, being secured .to the rod, and means on the rod for securing it in different rotative positions so as to vary the tension of the spring.

20. A sewing machine having a take-up roll, means for operating the take-up roll, a rod. a link swinging on the rod, hearings in which the rod is mounted so that it can rotate, a coiled spring on the red, the spring hearing on the rod and on the link, a triotion roll on the link, a handle on the rod for tnri'ling it to vary the tension of the spring, and meanp on the bearing for engaging the handle to hold it in various positions.

In testimony, that we claim the foregoing, we have hereunto set our handa this 23rd day oi May 1912. J()Ili\' WM. RUBER'IS.

Alt'lllUlt 1. lJtl HVS'ilClt. BUY!) B RYHUN.

Witnesses \Var. II. (Jana-Juno, M. A. Jonxsox.

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