US1529013A - Feeler mechanism for looms - Google Patents

Description

March'lO, l9j25 1,529,03'v H. A. DAvls FEHLER IECHANISI FOR LOOKS Filed .April 25, 1924 2 Sheets-Sheet" 1- H. A. DAVIS FEELER MEGHANISM FOR LOOMS March l0,

Filed April 25, 1924 2 Sheets-Sheet 2 ...dnl

ATTORNEY `Patented Mar. l0, 1925.

UNITED STATES PATENT OFFICE;

HARRY A. DAVIS, OF HOPEIDALE, MASSACHUSETTS, ASSIGNOR T0 DRAPER CORPORA- TION, OF HOPEDLE, MASSACHUSETTS, A CORPORATION OF IYIAINE.

MECI'IANSM FOR LGOIVIS.

Application led April 25p,

lo au) tti/tom et may concern. n f

15e it known that i, nanny Davis, a' citizen ot' the United ratates,y and a resident or ilopedaie, in the countyb Worcester and @tate or iS/iassachusettsnave invented an improvement in reeier niecnainsnis iol" noonis, oit which the ioiiowingl description, in connection with theaccompanying drawd inns, is a specincation, like characters on; 'the drawings i'epresentinghke parts.

`this invention relates to. 1`eeler mecha `nisins tor looms whereby the operative condition oiA the loom is changol iroin time to tinie,as7 rorinstance replenishment or lining. .y v

iceier looms equipped with intermittent ifceier mechanisms4 provide that the roeier or said mechanisms shall have periodsy or' activity and periods ot' inactivityV during weaving, with the same supply or i'ilnn` in the shuttle, so that the recurring contact oi the iilling by' the eelei' is avoided tor the mostpart. Since the vclninacter oi the lining inthe shuttle may be changed troni time to time in the production ot diiierent characters or kinds of cloth,` it becomes dc- `sii-able to provide in the intermittent .teoier mechanism a condition that will permit tho active periods oi' the eeler to be varied iii their duration and in accordance with the character oi' the iilling employed. @ne ot the objects oit' thepresent invention, there-- tore, isto provide a eeler mechanism oi' the intermittent type wherein provision is made for enabling the yactive periods ofthe ifeelcr to be varied in their duration inorder tha. the teeler may properly function in connec-- tion with the different kinds and characters ci" tlie'iilling that maybe` employed', and another 'feature of the present invention consists in means for readily varying both the periods of activity and inactivityY ot .L ileeler.

YAWhen Weaving with line filling, the time required ior the depletion of the filling); to a predetermined point is greater than when4 weaving with filling of a coarser kind, consequently when weaving with fine iilling it not necessary that the feeler shall be re-l leased to its periods of activity as frequentvlv as when weaving with eoars'er filling or filling which is more rapidly depleted from the filling carrier, The present invention i924. serial No. 708,907.

` s therefore provides a eeler mechanism or the intermittent type which, may be readn adapted'for the weaving or' various kinds of -hllingy in thefsame loom.

lhe invention and new combination of parts will best be made clear from the foilowing description and the' accompanying drawings of onev good form thereof,A it being understood that the invention is not necessarily restricted to the details, which may be changed.

1n the drawings: o

Fig. 1 is a perspective view of the portions of a loom at the eeler sidethereoi',

showing the present inventionassociated therewith o Fig. 2 is a side elevation of the ieeler mechanism embodying the present invention;

Fig. 3 is a section on the line 3-3 of lig.` 2; and l Fig. lis a plan View. o t The loom trame 1 has mounted thereon the transverse sha-ft 2 which may be apy* t propriately supported in bearing brackets 3, one of which -is secured toeach side of the, loom. Secured lto the shaft 2 and extending upwardly therefrom is an arm =l to `which is pivoted at 5 the rearwardly eX- tending member 6 having pivotally assoelated therewith, as at 7, a rearwardly extending arn'i 8 which is adapted from time .to time to be 'engaged by the operating` member 9 which may be appropriately forni-- ed as a part of or connected' to the cani` 'tot lower The arm 8 has secured thereto a finger 10, in the present instance which overhoone arm 11 of a bell crank pivoted at 12 fto a support 13 connected to the loom traine, -The other arm 14 of the bell crank conM block 24 mounted in a bracket 25 connected to the feeler stand, and interposed between the swivel block 24 and the support or bridge 26 secured to the feeler a spring 27 normally tending to move the feel'er to its rearward feeling position. A cap plate 28 is mounted on the rear bearing 19 and forms a convenient means for confining the slide 2O in its guideway, and through an opening in the slide 2O the feeler 22 extends. The construction thus far described may be substantially as that shown and described in the patent to Edward S. Stimpson, Serial No. 1,309,226, dated July e, 1919.

The present invention is shown as associated with a feeler of the inclined type but it is to be understood that the invention is not restricted thereto but may be advantageously employed in connection with any usual type of'feeler which will function to call vthe change or replenishment of filling when the filling in the shuttle has become substantially exhausted.`

It has not been deemed necessary herein to show and describe the mechanism for replenishing the filling, since such mechanism is now well understood, and the details thereof form no essential part of the present invention.

The lay 29v is provided with the usual shuttle box 8O having an opening 31 in its front wall with which registers the opening 32 in the wall of the shuttle 33 when the latter is in the box at the feel'er side of the loom. The Shuttle 83 carries the usual filling carrier or bobbin 34 on which the filling 35 is wound.

Atthe side of-the feeler stand, as shown, is a feeler withdrawing device or detent which is adapted to withdraw the feeler frontwardly beyond the reach of' the filling on detecting beats wheny the feeler is in its inoperative or inactive position. In the present instance, the feeler vstand has extending downwardly therefrom the bracket 36 on which' is pivotally mounted at 37 a rocker arm 88, the upper end por-tion of which is connected at 39to the detent-40; Y

The toothed end portion of the detent 40 may be variously contrived, but in the present instance the engaging end 41 of the I detent is formed separately from the detent itself and has a threaded stem 42 which passes through lugs 43, 44 of the detent, and between such lugs there is a thumb nut 45 whereby the active end 41 of the detent may be adjusted into cooperative relation with a part carried by the feeler for withdrawing the feeler to a frontward po-` sition. In the resent instance, the collar or bridge 26 ofthe feelery has a sideportion 46 formed as an inclined tooth, the rear edge portion of which .is adapted to engage a tooth formed on the active endk of the detent when the feeler is moved frontwardly lly a working supply of filling on a detecting eat.

The active end 41 of the detent is provided with two teeth 4T, 48, either one of which may, under certain conditions, be engaged by the part 46 carried by the feeler. Vhen the filling opposite the feeler is being withdrawn from the filling carrier or bobbin, the feeler may not be moved frontwardly so far as when the filling is being withdrawn from near the end of the bobbin, and in such cases the feeler will be not b-y moved frontwardly so far as to engage the front tooth 48 of the detent but will engage the tooth 4T. In either case, however, thel detent when engaged with the feeler will be actuated to move the feeler to a position beyond the reach of the filling on detecting beats.

Mounted on the bracket 36 extendingl from the feeler stand is a stud or dead shaft 49 on which is mounted the toothed wheel or ratchet 50, the teeth of which are adapted to be engaged by a pawl 51 carried by a rocking arm 52 which may be conveniently mounted for rocking movement on the stud or deadY shaft 49. The end portion of the arm 52 is provided with a slot 54.

Mounted on the stud 49* at one side of the dead shaft is the arm which is likewise provided with a slot 5G, and between the two arms and passing through the slots 54 and 5G thereof is an adjustable connector` 5'1"" which is shown in the present instance as a threaded bolt which may be clamped in position in the slots of' the arms by means of nuts or other equivalent means 58, the construction being such that should the arm 55 be oscillated or rocked, its rocking movement will be transmittedto the rocking `arm 52, and the amplitude of suoli rocking movement may be varied by adjusting the connector 57 in the slots of the two arms as indicated in Fig. 1. in the present instance of' the invention, the arm 55 is actuated from the lay through a strap 59 connected at 60 to the lower end of the arm 55 and at its opposite end (3l to an arm 62- which may be secured to the lay through the intervention of a bracket 61:3. The pawl 5l, is normally under the influence of a light spr-ing 64 tending to hold the pawl in operativ-e relation with the teeth of the ratchet.

Mounted on the fixed bracket 65. Fig. 2. which may be coiweniently secured toV the dead shaft 49 is a holding pawl G6 normally held in locking engagement with the ratchety teeth by a spring 66. The backward movement of the lay acts through the strap 59 to give the pawl 51 its active stroke, and sprin l 52* returns the pawl through its idle stroke to its original set position defined by a stop or pin 53*.

Secured to` or formed as a part of the ratchet wheel 50 is a trip lug'y 69 which may be conveniently forme on a disk 7() .-secured to or formed as a part of the ratchet wheel 50. f

Adjustably connected to the disk 7 0 and consequently to the ratchet wheel is the detent controlling cam 71 having a cut-out or recessed portion 72, best shown in Fig. 2, and upon the cam 71 travels the roller 73 carried by the arm 38. vWhen the roller 73 is traveling along the main periphery of the cam 71, the detent will be held in front.- ward position, andwhen the recess 72 of the cam comes opposite the roller 73 during` the step by step movement of the ratchet, the detent will move to a rearward position under the stress of a spring 67, one end being connected to the fixed arm G8 and the other to the detent, as shown.

From the construction described it will be apparent that the trip lug 69 and the cam will be moved step by step through the action of the ratchet, and when the trip lug 69 rises beneath the detent it engages a lug 74 to thereby lift the detent -from holding engagement with the feeler,

whereupon the feeler is free to move to its feeling position under control of the feeler spring 27. lVhenthe depressed portion 72 of the canil presents itself to the roller 73, the detent will'be moved to its rearward position, as indicated in Fig. 2, so that should the feeler be moved frontwardly by a working supply of filling on avdetecting beat, it will be engaged by the active end of the detent and helduntil as the roller 73 moves out of the depression 72 the detent will withdraw the feeler further 'frontwardly beyond the reach of the filling on detecting beats. o

The length of the periods of activity of the f'eeler depend upon the relation of the trip lug 69 to the cam 71 in theirsequential order of operation, and in order to enable the feeler to have longer or shorter periods of activity in accordance with the character of fillingbeing employed, the camf'l is secured adjustably to the ratchet, so that the sequential order of operation ofthe trip lug and the cam may be altered or arranged to provide for longer `or shorter periods of' activity of the feeler.

In the present instance, the cam 71, best shown by Fig. 2, is provided with a slot 75 which is made concentric with the good form of the invention, it will be ap# parent that the detent controlling cam 7l may be adjusted, relative to the trip lug Gf) so that'the withdrawing action of the cam 71 may take place and withdraw the feeler to its inoperative position after one, twc, three or any number of detecting beats following lthe release of the feeler to its feeling position,

It Will also be apparent that owing to the varied amplitude of movement that may bc imparted to the active pawl 51, the frequency of the active periods of the feeler may be changed to agree with the character of the filling employed. While the mechanical detailsfor carrying the present invention into effectare simple and effective, but within the true scope of the invention, it is to be understood that the details may be varied.

When weaving with fine filling, the frequency of the release of the feeler to its periods of activity may be made to occur lat longer intervals than when weaving with a coarser filling, and where the filling turrier is more rapidly depleted the parts may beso arranged that the feeler may he re" leased to its periods of activity more frequently in accordance with the requirements of the particular filling being used Should the feeler be in its feeling posi-- tion on a detecting beat, as indicated in Fig. 1, and be moved frontwardly by a working supply of filling, it will be engaged by the detent provided the detent has been perrmitted to move to its rearward engaging position by the recess 7 2 of the cam, and on movement of the cam, the detent will withe draw the feeler to a position beyond the reachiof the filling. Should the feeler, how ever, meet the filling at a time when that opposite the feeler is approaching a condition of substantial exhaustion, it will not he moved far enough to be engaged by the detent and will remain in action until, when the filling is substantially exhausted.. replenishment of filling will be called.

lWhat is claimed is:

1. In a. feeler mechanism for looms, the combination of a feeler, means for moving` the feeler to an inoperative position beyond the reach of the filling on detecting beats, a trip for releasing the feeler at intervals that it may have periods of activity and inactivity during weaving with the same supply of filling in thel shuttle, and means for changing the relation between the feeler moving means and feeler trip that the periods of' activity of the feelermay be made longer or shorter.

2. In a feeler mechanismforlooms, the combination of a feeler, means for moving the feeler to an inoperative position beyond the reach of the filling on detecting beats, a ytrip for releasing the feeler at intervals that itmay have periods of actiity and inactivity during Weaving with the same supply of filling in the shuttle, a common actuator for the said means and trip, and

means for varying the relation of the said means and trip that the feeler may have longer or shorter periods of activity.

3. In an intermittent feeler mechanism for looms, the combination of a feeler to detect the condition of the iilling in the shuttle and effect replenishment When the lilling is substantially exhausted, means for holding the feeler in an inoperative position during its periods of inact-ivity, mechanism for freeing` the feeler from said holding means at intervals that the feeler may have periods of activity and inactivity during Weaving with the same supply of lilling in the shuttle, and means for making the active periods of the feeler longer or shorter at will relative to the inactive periods that the feeler may repeat its detecting funi-tion any desired number of times during its active periods.

In an intermittent feeler mechanism Afor looms, the combination of a feeler, a device to hold the feeler in a frontward ref-- tracted position, a trip for freeing` the feelcr at intervals that the feeler may have periods of activity and inactivity during W aving with the same suppl)7 of filling in the shuttle, an actuator for operating the trip, and means for varying' the relation between the holding` device and trip that the feeler may have longer or shorter periods of activity.

5. In a feeler mechanism for looms, the combination of a feeler having` periods of activity and inactivity With respect to the filling in the shuttle, means to engage the feeler and hold it in retracted position, means acting at .intervals to release the feeler that it may move to feeling position, means acting through the feeler engaging means to withdraw the feeler to a position beyond the reach of the filling, and connections between the feeler releasing means and feeler witlulraiving means for varying the duration of the periods of activity of the feeler.

6. In an intermittent feeler mechanism for looms, the combination of a feeler having periods of activity and inactivity With the same supply oftilling in the shuttle, means for holding the feeler in a position beyond the reach of the filling during its period of inactivity, a` trip for freeing the feeler to its periods of activity, and means for varying the duration of the periods of fceler activity relative to the periods of inactivity and the frequency of their occurrence.

T. In an intermittent feeler mechanism for looms, the combination of a feeler, a detent for moving the feeler into an inoperative position beyond the reach of the filling on detecting beats, a trip for tripping the detent at intervals that the feeler may have periods of activity and inactivity during weaving with the saine supply of filling in the shuttle, and a stcp-by-step device actuated from the lay for moving and tripping the detent.

S. In an intermittent feeler mechanism for looms the combination of a feeler, a deteni and an actuating device therefor to withdrau` the feeler to an inoperative position beyond the reach of the filling on dctecting` beats, a trip for freeing the feeier at intervals that it may have periods of activity and inactivity With the same supply of tilting in the shuttle, means for cluinging the relation of the actuating device and trig that the feeler may have longer cr shorter periods of activity.

U. In an iniermittent feeler mechanisn'i for loon'is, the combination of a feeler, means foil moving the fceler to a frontivard inoperative position and holding it for periods of inactivity, a trip for freeing the feeler from said means at intervals, and n'ieans for changing the operative relation between said means and lrip that the active periods of the feeler may be made longer or shorter.

It). An intermittent feeler mechanism for looms, comprising, in combination, afeeler,

detent for holding the feeler in an inoperative position for periods of time and freeing it at intervals that it may have periods of activity and inactivity during uf'eaving with the same supply of filling in the shuttle, controlling means for the detent including a ratchet Wheel, a paivl, an arm carrying the pawl, an actuator for said arm, and connections between the arm and actuator for varying the active stroke of the pau/l and the frequency of active periods of the feeler.

ll. An intermittent feeler mechanism 'tor looms, comprising, in combination, a feeler, a` detent for controllingthe feeler, a trip for freeingr the feeler from the detent, a cam for moving the detent frontu'ardly to place the feeler beyond the reach of the. filling, and means for adjusting the relation of the cam and trip.

l2. In a feeler mechanism for looms, the combination of a feeler, a detent for controlling the position of the feeler, a trip for freeing the feeler from the detent at intervals that the feeler may have periods of activity and inactivity during Weaving,r With the same supply of filling in the shuttle, means acting through the detent to move the feeler to a frontward inactive position, and devices between said means and trip for changing their relation that the feeler may remain in performance of its feeling function for a number of detecting beats during its active periods.

13. In a feeler mechanism for looms, the combination of a feeler, a detent for engaging a part connected to the feeler, mea-ns for moving the detent frontwardly, a trip for freeing the feeler from the detent at intervals that the feeler may have periods of activity and inmitivity during weaving with the same supply ot filling' in the shuttle.

i means for changing the intervals of operation of said means and trip that the periods of activity oit the feeler may be made longer or shorter. f

llt. In a feeler mechanism for looms, the combination of a eeler, a detent for engaging a part connectedto the feeler, means for moving the detent trontuf'ardly, a trip for freeing the teeler from the detent at intervals that the teelcr may have periods of activity and inactivity during Weaving With the same supply of filling in the shuttle, means for changing the intervals oi operation of said means and trip that the periods oit' activity of the feeler may be made longer or shorter, and means tor changing the frequency of the active periods ot the feeler.

15. In a feeler mechanism l'or looms, the combination of a feeleig a detent 'for deter mining the position of the feeler, and controlling means for the detent comprising a cam for moving the detent and feeler frontivardly,`a trip for freeing the eeler from the detont at intervals, means for ad* justing the relative positions of the cam and trip, and a ratchet operated mechanism 'for actuating the cam and trip in their adj usted relation.

16. In a 'eeler mechanism for looms, the combination of a feeler, a detent for controlling the feeler that it may have periods ot activity and inactivity during Weaving with the same supply of filling-in the shuttle, a ratchet mechanism for controlling the detent comprising a ratchet Wheel, a rocking arm carrying a paWl at. one end, a second rocking arm 'constituting an actuator for the pavvl carrying arm, connections between the second rocking arm and the lay, and adjustable connections 4between the tWo arms that the amplitude of movement of the pawl carrying arm may loe changed.

In testimony whereof, I have signed my name to this specification.

HARRY A, DAVIS-`

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