US759309A - Warp stop-motion for looms. - Google Patents

Description

PATENTE) MAY101904.

A 0. REINHARDT. 0 I WAM S0700 M0TI0N P00 1.00000..

APPLIUATION TILED FEB. 24, 1902.

M0 MBEL.

4 SHEETS-SHEET 1.

@Q NVENmR ATTORNEYS IWITNESSES:

. No. 759,309.. l PATENTED MAY10,1904..V

U. REINHARDT, WARE STU? MOTION POR Looms.

A PPLIUATIOH FILED @13.24, 1902.

1m 110ML. 4 SHEETS-salam sa.V

lNVENmH mormvs y tto. 759,309;

ATENT Patenten :may 1o, ieee,

NICE

OTTO RICINIIARD'I, 0F EASTON, PENNSYLVANIA, ASdIGrllUl-It` TU THE FIRM UF It. & H. SIMON, UIP UNION HILL, NEW JERSEY., AND EASTON,

f PENNSYLVANIA'.

WARP STP-MDTIQN FOR LOOMS.

. f srncirIoArIoN forming para of neteeysratent Navesooe, dated May 10,1904.

Y Application filed February 24,1902. Serial 170.95196. (No model.)

To @ZZ whom it may concern:

Be it known that I, OTTO RniNHARD'r, a citi.- zen of the United States, residing at Easton, Northampton county, State of Pennsylvania,

have invented certain new and useful Improve- `ments inWarp StolrMotions for Looms, of which the following is a specification.

My invention relates to looms, and has for its object to provide asimple and eiiicient con IO struction for stopping the loom in case one ot "uw the warps should break.

The invention will be fully described hereinafter and the features of Vnovelty pointed out in the appended'clairns. l

i5 Reference is to be had to the accompanying `drawings, in which-4 Figurel is a plan of a loom provided with my improved stop-motion with parts omitted for the sake of greater clearness. Fig. 2 is'a 2O sectional elevation on line 2 2 of Iiig. 1. Fig.

3 isa detail plan of part of the dropper-holders. Fig. if is another detail of the dropperholders drawn upon an enlarged scale. Figs. 5 and 6 are sectional elevations showing the :i 5 warpdropper, and dropper holder or guide in two different positions. Ifig.' 7 is a crosssection on line 7 7`voi` Fig. 1. Fig. 8 is a crosssection on line 8 8 of Fig.. 1. Iig. 9 is a sec tional elevation showing the same parts as Fig.

cross-section on line 8 10 ofA Fig. 1, showing the parts in a different position from that represented in Ifig. 8.

On the frame members 1 oi' the loom are carried ,brackets 2, which support a cross-bar 3.- lo this bar are secured hangers fi, which at their upper ends carry a horizontal bar 5,

2 and 5. y warps break, the corresponding dropper will 7, but in'a different position; and Fig. 10 is aV of the warps 6 is supported a dropper l0, preferably made in the shape oi' a hairpin, and the said droppers are arranged tostraddle the holders or guides 6, as shown hestin Figs. 2 to 6 and 9. Normally-that is, when the wal-ps 6 are stretchedfthe droppers 10 will be held in an upper position, as clearly shown in Figs.

Should, however, any one of'the 55 Iall untilits upper bend rests on the guide 8 below it, and the lower end of such dropper will then project into the path of mechanism, to be described presently, for actuating the stop device. The lower` ends of the hangers 4 carry a cross-bar 11, to which are secured rigidly, as by angle-irons 12, guides 13 of approximately rectangular shape. In these guides is adapted to reciprocate from front to reara slide or carrier 14, provided with rigid arms 15, projectedi'orwardly therefrom. These arms are pivotally connected with links 16, which are joined to rocking arms 17, pivoted at 18 upon suitable stationary hangers 19, and each driven by a cam or eccentric 20 on the shaft 21v For this purpose each oi' the arms 17 is provided with a shoe 22, engaging the eccentric 20 and held against the same by a weight 23. It will beunderstood that as 75 the shaft rotates the slide or carrier 14e will be reciprocated in the guides 13.

At each end of the carrier 14 are arranged posts 24:, receiving a pivot-rod 25, 'upon which are looselymounted trip`-bars 26,wcighted at their lower portions, asindicated at 27 in Fig. 2. lhe trip-bars will therefore stand nor- `mally in a vertical position, as shown in Figs.

2 and 7. In this position each trip-bar holds up an actuating-dog 28, pivoted at the front 65 part of the slide or carrier 14C, as shown at 2S). rlhe trip-bars26 are so arranged that normally the droppers 10 are not in the path oi said trip-bars. Should, however, one of the droppers be in its lower position, owing to the 4breakage .of a Warp 6, snch dropper will project into the path of the corresponding tripbar 26, and as the trip-bars reciprocate with the carrier 1li such bar will come in Contact i, with .the projecting dropper and will be f rocked on its pivot 25, as indicated in Fig. 9.

This will allow the dog 28 to drop into its op- 'belonging to two of them. I desire itto be understood, however, that I may employ only one'trip-bar, if desired, or any other suitable l number of them. It is preferable to have a plurality. of trip-bars, so that the weight of the parts to be moved by the dropper 10 in its lower position may bel reduced.

The shaft 31 carries 'a lever 33, adapted to 'engage a stop 34. Stops 35 may alsobe provided for each of the arms 32, although these stops are not. necessary. With the lower end of the lever 33 is connecteda cord or wire 36, which' leads under a guide-pulley 37, journaled in a stationary bracket 38, and then extends upward in a cylindrical casing 39 to a plunger 40, workingvin said casing.A A spring 41 has a tendency to keep the plunger in'its upper position, and therefore to throw the shaft 31 rearward until the lever 33 engages. the stop 34. The plunger has a stem 42 projecting forwardly and provided with guidepins 43, engaging slots 44 'in the casing 39, so as to prevent a turning movement of the plunger. The stem 42 is providedwith an oblliquely-disposed arm 45 at its -upper end. This stem and arm constitute together a spring-pressed member for operating a stop mechanism.

So far I have described thbse parts which constitute my invention and which are capable of attachment to any ordinary loom, the shaft 21 being one of the counter-shafts of the loom. The arm 45'is thel element which operates the stop mechanism,y and in the construction shown said stop mechanism is one well known in the art as a weft stop-motionthat is, a mechanism whichv operates to stop the loom in case the weft breaks. By the action ofthe arm 45 said mechanism becomes a warp stop-motion also, as willfully appear hereinafter. I desire it to be clearly understood, however, that the specific construction of the stop mechanism, consistingof the parts numbered from 46 upward, is not my invention, but is onewell known in the art, and I (laim such mechanism only generically as combined with certain' other elements named in the claimsand not in its specific details.

Upon the shaft 21 is locateda cam 46, which imparts an oscillating motion to' an elbow-lever 47, fulcrumed at 48. The upper end of thisiever-is providedwah 'a hook 4.9. This the hook 49 upon the forward movement of the latter. The lever 51 is fulcrumed at 53 upon .an arm 54, adjustably secured ina socket 5 5.' This socket is carried by a rod 56,.ad

justable in .sockets 57 in Va direction practically at a right angle to the adjustment'of the arm 54. The sockets57 are carried by a plate 58, fulcrumed at 59 to a stationary part of the loom, sothat the entire structure formed 4by 'the said plate 58, the rod 56, ,and the arm 54 can swing forward andrearward in a'horizontal plane, together with the hook 50. A spring 60 normally keeps 'the `said structure in its rearmost position. When the two hooks 49 and 50 interloclgwing to the breakage of the weft 61, the entire structure above defined is swung forward on itspivot 5 9, and a projection 62 at the forward portion of the plate 58 shifts a releasing-lever 63, pivoted vat 64, upon a stationary part of the loom. This releasing-lever has a projection 65, which bearsagainst the starting-lever -66 below its pivot 67. Thus when the releasing-lever is shifted forward against a stop 68 the startinglever 66 is thrown over into the stop position, it being understood that said lever is connected .witlrthe usual belt-shifter or Vany other starting device.. The operation thus described is the usual operation of the weft'stop-motion illustrated in the drawings.

swing on its pivot 25 and allowing Athe corre- Now in case oneof the warps should break one of the drop-.` pers 10 will fall, causing the trip-bar 26 to IOO ilo

sponding dogf 28 -to drop. Thisidog will then engage the corresponding arm 32 and rock c lar construction of my improved stop-motion,

I desire it to be understood that Vthe construction described is only an example of the many possible modes of execution of my invention,

and I do not intend tolimit myself to such specific constructions. 1

While I'havereferred to the U-shaped pins 1()- under the name of droppers, for the reason that they are arrangedto drop upon the breakage of the corresponding warp-threads, these'l pins may be designated more broadly as Warpengaging elements, which are movable transversely of the Warps, but held .normally stationary thereby, and which when released by the breakage of a Warp will move from their normal position into an active position, in which they are adapted to `operate the stop mechanism.

l claim as my invention-` 1. The combination, with substantially U- shaped droppers arranged to be normally supported by the Warps, oi guides straddled by the thread-receiving bends of said droppers and arranged to limit their downward movement, the said droppers being removable by simply lifting them 0H' the guides and warps,

and both ends of the droppers'extending freely at the sides of the guides and projecting be neath said guides when the droppers are low bred, and a stop mechanism arranged to be operated by either end of a lowered dropper.

2. The combination of warp-engaging elements movable transversely of the Warps and normally heldin position thereby, each of said elements being arranged to move transversely of its warp when the` latter breaks, a plurality of independent trip-bars each corresponding to a group of said elements and adapted to be shifted by engagement with anyjpne element of the group which may be ont of its normal position, and a stop mechanism actuated by the shifting of any one of the said trip-bars.

3. The combination of a stop-inechanism, a

sliding spring-pressed member adapted to operate said mechanism ,"w arp-engaging elements normally held stationary by the warps but adapted to move transversely thereof when released by the breaking of a warp, a flexible Iconnection attached to said spring pressed member, and means, operated by the released Warp-engaging elements, fox-pulling said connection and moving the said member against the tension oi its spring.

4. The combination oi' a stop mechanism, a

l sliding spring-pressed member adapted to operate said mechanism, Warp-engaging elements normally held stationary by the Warps but adapted to move transversely thereof when released bythe breaking of a Warp, a flexible

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