US723576A - Stopping mechanism for roving-frames, &c. - Google Patents

Description

PATENTBD MAR'. 24,' 190s.

T. BENTLEY. STOPPING MEGHANISM POR ROVING FRAMES, &o.

`APLIOATION' FILED DBO. 12, 1902.

2 SHEETS-SHEET 1.

NO MODEL.

No. 723,576. A i PATENTED MAR. 24, 190s;

T. BENTLEY. v sToPPING MEOHANISM FOB. ROVING FRAMES, aw.

APPLICATION FILED DEO. 12. 1902.

l0 MODEL. 2 SHEETS-SHEET 2.

T r: mums PETERS co. Puooumo., wAsNmaTou D -:UNITED n STATES PATENT @Tricia THOMAS BENTLEYOF MILFORD, MASSACHUSETTS, ASSIGNOB. OF TWO- -THIRDS TO JOHN RONEY AND JOI-IN C. RAE, OF WOONSOOKET,

RHODE ISLAND.

STOPPING Nl-ECHANISIVI FOR ROVINGAFRAIVIES,&.C.

SPECIFICATION forming part of Letters Patent No. 723,576, dated March 24, 1903.

Application filed December 12, 1902. serial No. 134.887. die model;i

To all wit/)711, it may concern:

Be it known that I, THOMAS BENTLEY, a citizen of the United States, and a resident of Milford, county of Vorcester, State of Massachusetts, have invented an Improvement in Means for Preventing Singles and for Stopping Automatically Roving-Frames, dac., of'

which the following description, in connection with the accompanying drawings, is a specication, like letters on the drawings representing like parts. l

In slubbing, intermediate, and roving frames a plurality of slivers are led through suitable guides and united into one roving by suitable drawing-rolls, and if one sliver of a set breaks the roving from that set will not be of the requisite thickness, and singles, as they are technically termed, are formed.

In United States Patent No. 681,612, granted to me August 27, 1901, I have shown effective means for preventing singles, the breakage of a sliver of a set acting through suitable meansl to effect automatically the breakage of the other sliver, and a single is thereby prevented in that particular set. I have found in practice that while this apparatus is very successful its scopeis not sufficiently extended, because in order to produce uniformity in the output of a roving or similar frameV the movement of all'of the sets of slivers should be practically the same. The time requisite to piece up a broken lset of slivers delays the delivery of the corresponding roving and results in an uneven product of the frame. I have therefore in my present invention combined with means for preventing singles mechanism whereby upon the operation of the means for preventing singles the stoppage ofthe entire apparatus is effected automatically, thus obviating anypgain of the intact roving upon the faulty one during the time required to piece up the broken slivers ofthe latter. the frame is made uniform, and the slight decrease in product for a given length ot' time, owing to stoppage of the apparatus asa whole, is more than compensated for by the superior and even character of the output. As will appear hereinafter, I have also devised novel sliver.

As a result the product of means `for preventing the formation of singles, and I have also in connection with such means combined simple and effective mechanism for causing the stoppage automatically of the entire frame upon breakage or failure of any sliver.

The various novel features of my invention will be hereinafter-fully described in the specification` and particularly pointed out in the following claims.

Figure l is a rear elevation of a portion of a roving orsimilar framev equipped with one embodiment of my invention. Fig. 2 is a transverse -section on the irregular line 2 2, Fig. 1, looking toward thc right to show more clearly the means for effecting the vibration of the feeler and the parts cooperating therelwith. Fig. 3 is an enlarged detail in rear elevation, showing two pairs of detectors, one pair being shown in their normal inoperative position, the slivers of that set being intact, and of the other pair of detectors. One of them is shown in operative position, having been released by failure or breakage of its Fig. 4 is a top or plan View of the pair of detectors and the adjacent parts shown at the left-'hand side of Fig. 3. Fig. 5 is a front elevation of the two detectors of a pair offset one from the other to show their construction. Fig. (5 isa perspective view of a separating device, hereinafter to be referred to, to prelvent interference of one detector of a pair with the other. Fig. 7 s a detail of a portion of the apparatus shown in Fig. 2, but in another position caused vby arrest of the feeler; and Fig. 8 is a view similar to Fig. 5 ot' two detectors of a pair of slightly-modified construction.

The slivers are led from bobbins B (see dotted lines, Fig. 2) in usual manner through guide-.eyes g g in the usual guide-plate G, set on edge back of the drawing-rolls D,'Which may be of any suitable or well-known construction in apparatus of this character, it being understood that the slivers I9/ b2 of aset pass from separate bobbins through the guideeyes g g', respectively, to the drawing-rolls. I have provided an auxiliary guide-bar hX,

which may, if desired, be extended to include a number of sets of slivers; but in the-present embodiment of my invention such a guide-bar is providedwith but one set of slivers, and it is secured to the plate G behind the same opposite a pair of its guide eyes gg' by two like studs F. Each stud hasa threaded shank f, which is screwed into one of the holes 10X in a separator-bar w, (shown separately in Fig. 6,) preferably metal washers w10 (see Fig. 4) being interposed between the plate G and the separator-bar and between the latter and the guide-bar 19X, so that when the studs are set up the parts are firmly together, the shanks of the studs passing through the washers. The separator-bar is uptnrnedvcentrally, as at 1.03, and by comparing Figs. 3 and 6 it will be seen that the shape of the separator-bar is substantially that of the guide-bar hX, the separator-bar having depressions or notches 't0' @02 at the base of its upright portion corresponding in position to the guide-eyes g g', respectively. Upright ribs wl 105 (see dotted lines, Fig 4, and also Fig. 6) are formed on the upturned part 1.03 of the separator-bar and extend fore and aft, the rib @05 extending to the `plate G and the rib 104 to the guide-har hx, saidribs acting as guides for and also to limit the movement of the detectors, to be described.

. In Fig. 5 the two detectors of a pair are shown, and it will be seen that they are substantially alike in outline and general configuration, and, as a matter of fact, they differ in but one respect, to be hereinafter referred to, and when in position the detectors are placed one in front of the other between the two slivers of a set, as shown in Figs. 3 and 4:.

The detectors are preferably made of sheet metal of suitable thickness, and each consists of an elongated flat body d, having opposite lateral extensions or arms d' d2, the latter extensionl being vlocated nearer the lower end of the detector and preferably having its under edge concaved, as at d3. A longitudinal slot d is made inthe body of each detector, and the lower end of the detector is extended at one side of its longitudinal center to forma depending foot d4, which is bent at its extremity to present a toe d5, substantially at right angles to the plane of the body and the foot. lf one detector'be folded over, as it were, upon the other, viewing Fig. 5, the two detectors will coincide in every respect, except that the toe d5 of one detector will project oppositely from the toe of the other, and in making,r the detectors they can be made with the same die, it being necessary thereafter merely to bend the toes ofthe detectors of a pair in opposite directions. When, however, the detectors are placed one in front of the other, asshown in Fig. 3, the extension d2 of one detector will project to the right while the corresponding extension of the other detector projects tothe left, and the arms or extensions CZ will also project in opposite directions, while the feet are laterally offset, and the toes project in the same direction and at right angles to the planes of the detectors.

The detectors of a pair are mounted between the plate G and the guide-bar hX and separated from each other by the bar 7,0, the guide-rib 104 entering the slot dx of the detector nearest the guide-bar hX, while the rib 105 enters the slotof the other detector of the pair, and hy reference to Figs. 3 and 4 it will be seen that the slivers b b2 of a set travel longitudinally on opposite sides of the two detectors. The latter are longitudinally and vertically movable on the guide-ribs 104 105, as will be manifest, and if unsupported the detectors will drop as far as permitted by the guide-ribs.

Referring now to the pair of detectors shown at the left-hand side of Fig. 3, the extensiond2 of the nearer detector rests upon the sliver b', while its arm or extension d extends across but above the sliver b2. The latter sliver supports the extension or arm d2 of the rearmost detector, (viewing Fig. 3,) and its arm d extends over and above the sliver b', so thatr the two detectors are normally maintained by the slivers in the position shown, with their toes d5 just above or adjacent the lower edge of the plate G. The slivers are led through the guide-eyes g g/ and over the notches w 'L02 of the separator-bar t0 and over the corresponding notches h h' of the guide-bar hX and underneath the arms or extensions d2 of the two detectors. The slivers are thus supported at two points near together, behind and in front of each arm or extension cl2, so that the weight of the detector has little or no tendency to cause the sliver to bend or be depressed between its two points of support. The spaces between the separator-bar and the plate G and guidebar hX are sufficiently wide to permit free longitudinal movement of the detectors without binding the latter.

Referring to the pair of detectors shown at the right-hand side of Fig. 3, it is supposed that the sliver b has broken or failed and its detector, the one neare the spectator, has been released and dropped to the position shown, its arm or extension d' having thereby descended until it rests upon the sliver b2 and the toe d5 has been moved some little distance below thelower edge of the plate G. It', now, this released detector be moved downward as far as is'permitted by its guide- ICO IOS

IIO

rib--as, for instance, until the toe d5 assumes v the dotted-line position, Fig. 3theiarm or extension cl'will bear down upon the sliver h2 and will pinch or hold it firmly between the sepae in my present invention to eect automatically the stoppage of the entire apparatus.

Referring to Fig. 1, I have shown a portion of the usual fast andloose pulleys P P', respectively, and a belt fork orshipper S, depending from and secured to a shipper-rod SX, mounted in a bearing in the end A of the frame and in a second bearing 6 on a bracket 5, mounted uon'the top of the frame. By means of a suitable handle (not shown) connected to an arm SX on the shipper-rod, the latter can be moved by hand longitudinally to shift the belt from the fast to the loose pulley when it is desired to stop the frame manually. The shipper-rod is provided with a collar or other annular enlargement s', Fig. 1, which is engaged by a ,depending lug or arm tx, fast on a controller-rod t. This controller-rod is mounted to slide in abearing a5 on the end frame A and in a bearing a0 on a stand a7, erected upon the top of the main frame AX, and between said stand and a collar t on the controller-rod is coiled an operating-spring S10. An inverted U shaped stand 7c, mounted on bracket 5, overhangs and partly surrounds the controller-rod, said stand having upright guides 7c', Figs. 1, 2, and 7, secured toits front and rear sides and projecting beyond its outer face, Fig. l, for a vertically-slidable latch k2, having its lower end forked or bifurcated, as at 7e3, to straddle the controller-rod. The latter has an annular groove t2 therein, Figs. 2 and 7, adapted to be entered by the lower concaved end ki of the latch between its depending forks k3 when the latch is in its lowered operative position to hold the controller-rod in the position shown in Fig. 1 against the stress of the spring S10, this position of the latch being shown clearly in Fig. 2. Vhen the latch is lifted, as in Fig. 7, the controller-rod is released, the spring S10 moves it in the direction of arrow 50, Fig. 1, and through the depending arm X and the collar s the shipperrod S is moved in the same direction to shift the driving-belt to the loose pulley P to thereby stop the entire frame. The latch may be lifted by hand, if desired, by means of the overturned upper end k1 thereof. Suitable upright stands M on the frame A back of the drawing-rolls are provided with bearings m to support a horizontal rock-shaft fm', extended longitudinally of the frame at its back and provided with cu rved and forwardlyextended rocker-arms m2, which latter carry a feeler MX, the guide-plate G being herein shown as also sustained by the said stands. The feeler is preferably made of angle-iron, as shown in Figs. 2 and 7, to s ecure requisite strength and stiffness combined with lightness. Normally the feeler vibrates in a curved path (shown by dotted lines, Figs. 2 and 7) by means to be described toward and away from the upright plate G and beneath its lower edge; but if a detector is released its foot d4 depends below the plate G and its toe CZ projects into the path of the feeler, engagtor then stopping it and arresting the feeler before it has completed its feeling stroke. The lower back roll-shaft (Z300 has attached to it a gear Q10, Figs. 1 and 2, which meshes with a second gear Q12, rotatably mounted on a stud on a stand w15, and said gear Q12 is provided with a wrist-pin Q13, to which is pivotally connected one end of a link Q14, the other end of the link being pivoted at Q15-to a rocker Q10. This rocker has a fulcrum-pin 16, mounted in a long bearing 17 on an extension 18 of the bracket 5, secured to the main frame, and the upper end of the rocker is connected by a peculiar connection with a short rocker-arm m3, fast on the feeler rock-shaft m. The con nection com prises two members c and @,the former being pivotally connected at m4 with .the rocker-arm m3 and bifurcated at its other end at c to receive between such bifurcations or forks the member e, which is pivotally connected therewith by a suitable pin cx, Figs. 2,A

and 7. A second pin c2 extends from one t0 the other fork of the member c near the main part to engage attimes the free end e2 of the member e, the opposite end of said member being pivoted at e' with the upper end of the rocker Q10. When the two members c and e are in the relative position shown in Fig. 2, they willoperate substantially as a single member to rock the shaft m as the rocker Q10 is swung back and forth, and it will be noticed that the pin eX is slightly above a straight line connecting the joints m4 and e. The two-part connection thus reciprocates back and forth and with the part e directly beneath the depending forks 7c3 of the latch k2 transversely thereto, and so long as nothing interferes with the free vibration of the feeler MX the rock-shaft m will continue to be rocked. lf, however, the feeler engages a released detector and moves it for a limited distance, as described, and is then stopped, the movement of the-upper end of the rocker Q16 in the direction of the arrow 35, Fig. 7, will cause the IOO IIO

connection c e to be broken at its joint, and

the two members will assume the relative position shown in Fig. 7. As the member e is thus turned from a substantially horizontal to an inclined position it will act upon the latch 7a2, liftingit and withdrawing its concaved end 705 out of the groove i2 in the con- A troller-rod, thereby releasing it, the spring S10, Fig. 1, immediately operating, as has been described, to shift the belt from the fast to the loose pulley to thereby stop simultaneously the movement ofall the sets of slivers. It is to be noted that such stoppage of the frame as a whole will occur whenever a released detector has been engaged by the feeler, and, furthermore, whenever one detector is releasedby breakage of its sliver the fellowsliver of that set will be broken, as has been described, anda single prevented.

By stopping the movement of all of the sets -of slivers whenever a single is prevented in any particular set the intact sets of slivers are prevented from gaining on the faulty set, and the product of the frame is rendered substantially uniform throughout.

The stopping mechanism and the means for controlling it by or through a released detector are not necessarily as shown and described herein, as I have only attempted to illustrate one practical mechanism embodying my invention.

It will be seen by reference to Fig. l that the shipper-rod may be moved manually to stop the frame, if desired, without interfering with the controller-rod.

After the broken slivers -have been pieced up the parts e and c will return to their relative normal positions (shown in Fig. 2) and the latch will drop onto the controller-rod, and the movement of the shipper-rod to running position also moves the controller-rod to'bring its annular groove beneath and to be entered by the latch.

So far as I am aware it `is broadly new to not only only prevent singles but to stop automatically the entire frame whenever the means for preventing singles is called into operation, and accordingly my invention is not restricted to the precise construction and arrangement herein shown and described.

The novel form of detector herein shown and described is very inexpensive and is readilymade by punchingor by being died out from sheet metal, and I have also obviated the use of teeth, prongs, or other similar means for engaging the unbroken sliver of a set.

So far as I am aware it is broadly new to impart to a released detector a positive movement to effect the breakage of the other sliver of the set.

In Fig. 8 the detector, preferably made of flat metal, is, in the main, like the detector shown in the preceding figures; but in order to prevent one detector of a pair from interfering with another the depending foot dlo is laterally extended, as at d, and a toe d50 is formed on such extension, projecting at right angles therefrom, the inner edge of the toe being slightly to one side of the longitudinal center of the slot (12X.

When the two detectors are placed one in front of the other in working condition, the toes will be side by side under normal conditions, but not contacting with each other, so that movement of either detector into operative position will not be interfered with by the toe of the other detector. A

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In apparatus of the class described, instrumentalities to move and to guide a plurality of sets of slivers, and stopping mechanism therefor, in combination with means to prevent singles, comprising two movable detectors for each set of slivers, each detecreame tor being maintained inoperative by a sliver of a set, a feeler to cooperate with a detector released by failure or breakage of its sliver and move it to eectbreakage of the other sliver of the set, and means to effect the actuation of the stopping mechanism by or through such coperation of the feeler and a detector.

2. In apparatus of the class described, instrumentalities to move and to guide a plurality of sets of slivers, and stopping mechanism common to all of said instrumentalities, in combination with a series of pairs of longitudinally-movable detectors, each detector of a pair being maintained inoperative by one of the slivers of a set and having a lateral arm to 'engage the other sliver when such detector is released by breakage or failure of its own sliver, a normally vibrating feeler to engage and positively move a released detector for a limited distance, to thereby effect breakage of the other sliver, and also arrest the feeler, and controlling means for the stopping mechanism, to effect the operation of the latter upon arrest of the feeler, whereby singles are prevented and the apparatus as a Whole stopped automatically upon breakage or failure of a sliver.

3. In apparatus of the class described, instrumentalities to move and to guide a plurality of sets of slivers, and stopping mechanism therefor, in combination with means to prevent singles, comprising two detectors for and located between each set of slivers, each detector normally engaging and being maintained inoperative by its own sliver and having a lateral arm above and projecting across the other sliver of the set, means to j guide and permit limited longitudinal movement of either detector when released by breakage or failure of its sliver, a depending foot on each detector, provided with a toe, a feeler normally moving. in a curved path below the detectors, and means loperated by or through arrest of the feeler to effect the actuation of the stopping mechanism, the toev of a released detector moving into the path of the feeler, to thereby positively move the detector longitudinally and cause its lateral arm to engage and break the other sliver and also to thereafter arrest the movement of the feeler.

4. In apparatus of the class described, instrumentalities to move and to guide a plurality of sets of slivers, and stopping mechanism therefor, in combination with means to prevent singles, comprising two like detectors for each set of slivers, said detectors being placed en e in front ofthe other between the two slivers and vertically movable independently of each other, each detector being sustained by its own sliver and having alateral arm extended above the other detector, a depending foot on each detector, having a toe projecting therefrom, release of a detector by breakage of its sliver permitting its arm to descend and engage the other sliver and IDO causing its toe to move into operative position, a feeler to engage. the toe of and depress a released detector, to thereby break the other sliver and stop thefeeler, and means controlled by stoppage of the feeler, to eiectthe actuation of the stopping mechanism and thereby stop automatically the movement of all of the slivers.

5. In apparatus of the class described, instrumentalities to move a plurality of sets of slivers, and stopping mechanism therefor, in combination with an upright plate having guide-eyes through which the slivers are drawn, an auxiliary, parallel notched guidebar, a pair of longitudinally-movable detectors located one in front of the other and mounted between said plate and guide-bar, thedetectors of each pair being adapted to move transversely to the slivers and each having a lateral arm extended 'above one of the slivers and an opposite projection to rest on the other sliver, whereby each detector is normally engaged and maintained inoperative by one of the slivers of a set, downward movement of a detector acting th rough its arm to effect breakage of the other sliver when released by breakage of its own sliver, a feeler normally vibrating in a curved path toward and below the plate and adapted to engage the depending foot of a released detector, and positively depress said detector for a limited distance, to effect breakage of the other detector and arrest the feeler, and means to effect the actuation ofthe stopping mechanism by or through such arrest of the feeler, whereby singles are prevented and simultaneously the movement of all of the slivers will be stopped.

6. In apparatus of-the class described, the combination with means to move the slivers, and to guide them, the latter including an upright plate having guide-eyes through which the slivers are drawn, of two like and vertically-movable detectors longitudinallyslotted and placed one in front of the other between each pair of slivers, guides entering the slots, to permit limited vertical movement of the detectors, each detector having an extension to rest upon one sliver,an oppositely-eXtended arm to project above the other sliver of the set, and a depending foot having a feeler-engaging portion, release of a detector by breakage of its sliver effecting engagement of the extended arm of said detector with the other sliver to effect breakage thereof, when the detector is positively depressed, and means to 'engage and positively depress a released detector.

7. In apparatus of the class described, iustrumentalities to move and to guide a plurality of sets of slivers, a movable detector for each sliver of a set, normally held inoperative thereby, breakage or failure of a sliver acting to release its detector, and means to engage and positively move a released detector and effect the breakage of the other sliver of the set by or through such movement.

8. In apparatus of the class described, instrumentalities to move and to guide a plurality of sets of slivers, a movable detector for each sliver of a set, normally held inoperative thereby, and having an extension projecting above the other sliver of the set, breakage or failure of a sliver acting to release its detector, and means to engage and positively move a released detector to bring its extension into engagement with and break the other sliver.

9. In apparatus of the class described, instrumentalities to move and to guide a plurality of sets of slivers, a vertically-movable detector for and normally maintained inoperative by each sliver and having an extension projecting above the other sliver of a set, breakage or failure of a sliver releasing its detector, and means to engage and positively move a released detector to cause its eXtension to engage and break the other sliver of the set. e

l0. In apparatus of the class described, iustrumentalities to move and to guide a 4plurality of sets of slivers, and stopping mechanism therefor, in combination with means to prevent singles, said means including movable detectors coperating with and normally held inoperative by the intact slivers of the several sets, breakage or-failure of a sliver acting to release its detector-and through the latter effect breakage-of its fellowsliver, and means to elfect the operation of the stopping mechanism byor through-a released detector.

11. In apparatus` of the class described, instrumentalities to move and to guide a plurality of sets of slivers, and stopping mechanism therefor, in combination with means to prevent singles, said means including movable detectors coperating with and normally held inoperative by the intact slivers of the several sets, breakage or failure of a sliver acting to release its detector and through the latter effect breakage of its fellow sliver, and

means to effect the operation of the stopping mechanism by or through a released detector, said meausincludingavibratablefeeler,a positively-actuated rocking arm, and a two-part jointed connection between it and the feeler, to vibrate the latter, engagement and arrest of the feeler with a released detector breaking the joint of the connection and operating therethrough to effect the actuation of the stopping mechanism.

l2. In apparatus of the class described, instrumentalities to move and to guide a plurality of sets of slivers, and stopping mechanism. therefor, including a longitudinallymovable shipper-rod, a controller-rod operatively connected therewith, a spring to move the controller-rod, and a latch to retain it in running position, in combination with means to prevent singles, said means including movable detectors cooperating with and normally held inoperative by the intact slivers of the several sets, breakage of a sliver acting to release its detector and through the latter ef- IOC IIO

feet breakage of its fellow sliver, and means to effect the operation of the. stopping mechanism by or through a released detector, said means including a vibratablefeeler, a positively-actuated rocking arm, and a two-part jointed connection between it and the feeler, to vibrate the latter, the connection reciprocating beneath the latch of the controller-rod, arrest of the feeler by engagement with a re leased detector breaking the joint of the connection and disengaging'the latch, to thereby release the controller-rod, movement thereof byits springr effecting longitudinal movementof the shipper-rod to stopping position.

13. As a new article of manufacture, a detector of the class described, comprising a flat, elongated body havine.r oppositely-projeeting extensions one higher than the other, and a depending foot.

14. As a new article of manufacture, a dezo n THOMAS BENTLEY.

Witnesses:

JOHN C. EDWARDS, EMILY C. HoDGEs.

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