US2654138A

US2654138A - Pattern controlled drive mechanism for machines for operating upon warps

Info

Publication number: US2654138A
Application number: US216602A
Authority: US
Inventors: Russell P Drake
Original assignee: Barber Colman Co
Current assignee: Barber Colman Co
Priority date: 1951-03-20
Filing date: 1951-03-20
Publication date: 1953-10-06
Anticipated expiration: 1970-10-06

Description

Oct. 6, 1953 2,654,138

R. P. DRAKE PATTERN CONTROLLED DRIVE MECHANISM FOR MACHINES FOR OPERATING UPON WARPS Filed March 20, 1951 3 Sheets-Sheet l 33QO- O 49 J 1 1 INVENTOR- 4+ 4 Passe P. .Drq/(e R. P. DRAKE Oct. 6, 1953 PATTERN CONTR 2,654,138 OLLED DRIVE MECHANISM FOR MACHINES FOR OPERATING UPON WARPS 3 Sheets-Sheet 2 Filed March 20, 1951 ATTORNEYS R. P. PATTERN CONTROLLED DRIVE MECHANISM FOR DRAKE Oct. 6, 1953 MACHINES FOR OPERATING UPON WARPS Filed March 20, 1951 3 Sheets-Sheet s IN V EN TOR.

Passe P .Drafi' BY MM-x. 411%.

ATTORNEYs Patented Oct. 6, 1953 PATTERN CONTROLLEDDRIVE MECHANISM 7 FOR MACHINES FOR OPERATING UPON WARPS Russell P. Drake, Caledonia, Ill., assignor to Barber-Colman Company, Rockford, 111., a corporation of Illinois Application March20, 1951', Serial No. 216,602

9 Claims. (01. 28-44) The invention relates to a drive mechanism for a plurality of members to be operated selectively under the control of a pattern sheet, and has more specialreference to a drive mechamsm for machines for operating upon warps, such, for example, as warp drawing machines of the type disclosed in my prior Patent No. 2,400,342, dated May 14, 1946.

The objects of the invention are to provide for the selective operationof a plurality of members such, for example, as the warp rods in a warp drawing machine, by power driven means under the control of a pattern sheet, in a manner such as to insure that the pattern will be relieved of undue pressure by the feeler elements associated therewith; to render the adjustment or timing of the parts less critical; and in general to make the machine more reliable and trouble free in operation. I

The objects of the invention thus generally set forth, together with other and ancillary advantages, are obtained by the construction and arrangement shown by way of illustration in the accompanying drawings forming part hereof, in which:

Figure 1 is a fragmentary plan view of a portion of a warp drawing machine of the type shown in said prior patent and having the improved drive mechanism embodied therein.

Fig. 2 is a fragmentary transversesectional view taken approximately in the plane of line 2-2 of Fig. 1.

Fig. 3 is a fragmentary sectional view taken approximately in the plane of line 33 of Fig. 1.

Fig. 4 is a fragmentary sectional view taken in the plane of line 4-4 of Fig. 1' on an enlarged scale.

Fig. 5 is a fragmentary plan view of the mechanism shown in Fig. 4, with certain of the frame parts shown in section.

Referring first to Fig. 1, I have shown my invention applied to a warp drawing machine having two warp rods l and II to be operated selectively as determined by the pattern sheet P supported by a perforated drum l2. The latter is fast on a shaft l3 mounted upon a rocker [3- for oscillation toward and from a series of feelers l4 in the form of elongated rods mounted for movement radially of the drum and arranged for actuation selectively in the oscillation 'of the drum as determined by the pattern P.

The means for driving the drum and imparting oscillating motion thereto is of the character disclosed in said prior patent. In brief, it

comprises a drive shaft l which..in turn, is conwarp rods l0 and H are actuated by a drive As herein shown, the gear 31 meshes with two

spur gears

38 and 39 loose on parallel shafts 2 nected by bevel gearing It with a driven shaft H which, in turn, is connected by bevel gearing l8 with a cross cam shaft I8 parallel with the axis of the drum. Oscillatory motion is imparted to the drum by cam means including a cam 19 on the cross shaft [8 acting on the rocker Ill and step by step rotational movement is achieved by a bell crank 20 actuated by a cam 2| on the shaft H, the bell crank having a gearing connection 22 with the drum when the latter is in retracted position (Fig. 2).

Axial movements are imparted to the feeler rods I4 selectively in the oscillation of the drum overlie the perforations, in which event the ends of the rods are engaged and the rods advanced to the right in said figure. Return movement of such of the feeler rods which have been advanced 'is'effected by means of a slide 21 connected by side arms 28 with the drum shaft. For this purpose a lost motion connection is provided between the feeler rods and the slide, consisting of a notch 29 in the underside of each rod providing a shoulder 30 engageable by a flange 3| on the slide in the retracting motion of the slide with the drum. It will, ofcourse, be understood that thearrangement is such that when the drum occupies its retracted position the adjacent ends of the feeler rods clear the drum and the pattern thereon to permit of the next stepping movement of the drum by the cam H.

In accordance with the present invention, the

means deriving power from the main drive mechanism of the machine, through the medium of single revolution clutches 32 and 33 (Fig. 1) controlled by the selectively operated feeler rods M.

'In the present instance the continuously driven shaft I7 carries a spiral gear 34 (Fig. 2) driving a similar gear 35 fast on a cross shaft 36. The latter carries a spur gear 31 (Fig. 4) constituting a driver common to the two

clutches

32 and 33.

and 4 l continuously driven in the operation of the machine.

The

clutches

32 and 33 are to all intents and purposes identical so that only one of them need be described. As shown in Figs. 4 and 5, the

clutch 32 comprises a driving elements in the form of a disk 42 integral with the gear 38 and having aperipheral notch 43. A second or driven disk 44 is fast on the shaft 4|! and carries a pivoted dog 45 continuously urged by a torsion spring 46 in a direction to press its nose portion 45 toward the disk. The dog is pivoted on a stud 41 supported by the disk and bracket 4 13 fixed to the dish. S5 11? geartriins' F8 and}? (Figs. I and 2) respectively connect the shafts 4D and M with the warp rods [0 and II.

The dog 45 constitutes a ggnilec between the driving and drivfel'l; It is normally held disengaged rain the driving disk subject to release for entry into the notch 43 thereof under the control 0f the pattern 3;

being provided for the clutch 3 Withdrawal of the stop fingers fromethe tailz;

portions of the clutch dogs, under the control of the at n. et is c mpl sh d; Dr am g gaps 20 re ponsive to thel tiWIfii E' 9 1" JhifiEEzwhen nnpsrfgraied. easpnfirere e .s ee block the ro ds in the; forward movement of. the

sheet by the drnrn l2 his cam means chin:-

prises in the present in mice camfbl'oclis it an? 25 -56, rocks-the cgrrespon ing'slialftrizibr 53 aga ir'i t so as, owi d aw the.

ting element 5 ing-apluralitywpfparts to be operatedua pattern "fer actuating sald parts selectively comprising, in bbiiibihatiofi, a pergrated drum for supporting a pattern sheet, a

p l'iirality of feeler elements, means for reciprocats l i iii). 1?) meshes-sen dfflm when moving in one dil'e'tlori sefvii gl-tgilactuate the feeler elements selectively as determined by the pattern sheet h th ereoin drive'meansfior each of said parts com- For this purpose the dog has raradiahtlilfpcrtion. 50 normally engaged by a stop finger 5| fast upon 5 a rockshaft 52, a similar parallel rockshaft 53 I a elutcii'lgav'ing a continuously rotating drivexmeiiib ersraldriven member connected with the part gobe operated and having a connecting tifidii biased into engagement with the member and a stop member normally operative in the rotation of the driven member to disensagelthe connecting ,element f rcm the driv- 3? d Ifieaiis 'lifi fb i r genes-te ror the stop in t'erseiee their respective connecting are I 'i' operating upoh neviesae ii i i' i i new w baa-ea a man controlled mechanism "for actuating-said seleptively comprising, in combination, a perforat arms fdr siirfpii" a, patter-n siie'a, fa; plulralityof teier 'ei eme ts, irer prosa- Eesli d e I n inf r s irecti to tuate the easier ere ant *si'esvery as determined. by ftih pattern sates .anve hmui 1a,: v w H I fiahe perms be "operated and having connecting eiemfit 'tfiefediipi'ased into en'gagementw th -driving,member andastop memberni r l f y n h ifikn ,Ther uts zis his ees si a s n e n ms a t n t.

th t;r ta eeatme bi entis mr td ie these responding war-p rod through the spur gear train 4 1. .1.1 a .c. c; .n. w. in;

non ndin i 'enew ib its l O ti a ain t ia a etrqsr d ,m vsmet 9f he W 9 51,. oc utc disks ,Whe h s 12P=dbrvt .W torm mbena v n ms trail a 9 the dog a a spri d tenfi 'i e i s Qperiphera'l notch 59' inth'e disk, as seen clearly'i'n dr v m q a. 1m; *1 the, mafliint t ii'sie' h o .o 7 lutienrliliqh .sneer-F l control of the pattern sheet; renders critical ad- .iestmeni unn ce sa a die ur sesilhs tih e L ou le. ree o e a io =thi rmes a More 7' mommy it hasb en q dfi at eny w e 3 eu l er ds m y b wa n we t im er etfi m fen -t er fo e em ere?- a ra e;sashes-sat r sen e area-7.1

io fths war deem an l vlr rq g hemeii es rea s Pi me te tidesi ftnere e pjebee s.

is efiectually avoided. Thus a substantial saving movement with the drum selectively as determined by the pattern sheet, drive means for each of said parts comprising a clutch having a continuously rotating drive member, a driven member connected with the part to be operated and having a connecting element thereon biased into engagement with the drive member and a stop member normally tending to move into the path of the connecting element in the rotation thereof with the driven member and operative to disengage the connecting element from the drive member, and means operative in the movement of the ieeler rods to actuate the stop members so as to render their respective connecting elements effective selectively, the last mentioned means including a cam device on each feeler rod and a cam follower operatively associated with one of said stop members, each of said feeler rods having a lost motion connection with the drum operative in the return movement of the latter to shift its I cam device relative to its associated follower whereby to permit movement of the latter in a direction to carry the corresponding stop member into clutch disengaging position.

5. In a warp drawing machine having a warp rod, a perforated pattern supporting drum, power driven means for rotating said drum with a step by step movement and for reciprocating the same in timed relation to its stepping movements, a feeler element movable with the drum as an incident to its reciprocation and as determined by a pattern sheet thereon, and means responsive to suchmovement of the feeler rod for effecting a driving connection between said Warp rod and said power driven means comprising a single revolution clutch having a driven member connected with the Warp rod, a drive member connected with said power means, a connecting element for said members mounted on the driven member and biased into connecting relation to the driving member, a control device yieldably held in a position to hold the connecting element disengaged from the driving member, and means actuated in the movement of the feeler element with the drum to shift said control device out of holding relation to the connecting element.

6. In a machine for operating upon warps, the combination of a plurality of parts to be actuated selectively, a plurality of pattern controlled selectively operable feeler elements, and drive means for each of said parts comprising a normally disengaged single revolution clutch having a continuously rotating drive member, a driven member, a connecting element pivotally mounted on the driven member and biased for movement into engagement with the driving member, and

a control device operatively connected with one of the feeler elements, said control device normally holding said connecting element inefiective and arranged for movement by its feeler element into position to render the connecting element efiective.

7. In a machine for operating upon warps, the combination of a plurality of members to be actuated selectively, a plurality of pattern controlled selectively operable feeler elements, drive means for each oi. said members comprising a normally disengaged single revolution clutch, and means controlled by said feeler elements for engaging the clutches selectively.

8. In a machine for operating upon warps having a, plurality of parts to be operated selectively, a drive means for each of said parts comprising a clutch having a continuously rotating drive member, a driven member connected with the part to be operated and a connecting device, stop means normally operative to render said connecting device ineffective, and pattern controlled mechanism for rendering said connecting device effective selectively including a member operatively connected with the drive means for reciprocation thereby in successive cycles, means operative in the movement of said member in one direction to actuate the stop means selectively, and means operative in the movement or said member in the opposite direction to restore the stop means to normal position.

9. In a machine for operating upon warps having a plurality of parts to be operated selectively in successive operating cycles, drive means for each of said parts including a clutch and a control device therefor having a normal position in which it is effective to maintain the clutch disengaged, and pattern controlled mechanism operative in each cycle of the machine to shift said clutch control devices out of their normal positions selectively whereby to effect engagement of the corresponding clutches and further including means operative at a predetermined point in the cycle following selective disengagement of the clutches to restore the actuated control devices to their normal positions.

RUSSELL P. DRAKE.

References Cited in the file of this patent UNITED STATES PATENTS Number