US629220A - Harness-evening mechanism for looms. - Google Patents

Description

No. 629,220. Patented luly I8, |899; W. W. UHLINGER.

HARNESS EVENING NECHANISM F03 LOMS;

(Application led Hay 4, 1897.;

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No. 629,220. l Patented muy la, |399.Y

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HARNESS EVENING MECHNISM FUR LOMS.

{Applicaton filed May 4, 18973 Y 3 Sheets-Sheet 2.

(N0 Model.)

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HARNESS EVENING MECHANISM FDR LODMS.

(Application med May 4, 1897,) Hic Model.) 3 Sheets-Sheet 3.

L; ttozumj 'l UNL-TED STATES PATENT OFFICE.

WILLIAM W.' UHLNGER, or NEW vonk, NQY.

HARNESS-EVENINGMECHANISM FOR Looms.

sPncIFrcArIoN formingparr of 'Letters Patent No. 629,220, daten July 1e, 1899.

Application led May 4, 1397. Serial No. 635,063. (No model.) Y

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Be it known that 1, WILLIAM W. UHLIN- GER, of New York, in the county ofNew York and State of New York, have invented certain new and useful Improvements in Harness- Evening Mechanismforl Looms; and l do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to looms, and partie* ularly that class known as double-lift openshed dobbies, and it consists, essentially, ofV a machine of the character specified that is operated by a one-card cylinder, including devices for actuating the harness-shafts.

The invention consists in the detailsof con-l struction and the arrangement of the several parts, which will be more fully hereinafter deiand also asingle-eard cylinder,y which oper aies the pattern-cards on'a double-lift open- Vshed dobby, and also mechanism for leveling or letting down 1the hooks, so as to level the harness-shafts.

In the accompanying drawings, Figure 1 is an elevation showing the improved attachments and so much of the loom as to illusf trate the application of the invention. Fig. 2 is a detail view showing the mechanism, in-

cluding the hooks and parts connected there' to. Fig. 3 is a detail view of the leveling mechanism for the harness-shafts. Y

Referring to the drawings, wherein similar numerals of reference areemployed to indi-` cate corresponding parts in the several views, the numerals 1 1 designatevthe side pieces of the frame, which form the bearings or sup ports for the mechanism hereinafter de scribed. These bearings and supports may be of the most approved pattern, and journaled in those carried .by the said side pieces and extending between the latter is a rockshaft 2, having two arms 3 extending beyond opposite sides of the shaft and forming a double lever. operating-lever 4, having a slot 5 in its outer Attached to the said shaft 2 is an end for connection thereto of an operating device or mechanism. The ends ofthe arms 3 are connected up to plunger-rods '6 and 7 .by means of links 8, the said plunger-rods having laterally-projecting pins, to which the links are pivoted. To the ends of the plunger-rods 6 and knives 9 are attached, adapted' to be engaged by hooks 10, which are pivotedjto the ends of the jack-levers 11, which are centrally pivoted to harness-levers`12. The upper'series of hooks 10 rest upon the bent ends 13 of -rods 14, extending downwardly through the'lower series of hooks, as

,clearly shown in Fig. 2, the .lower ends of said rods 14 being engaged by indicator-levers 16, pivotally mounted-on a cross bar or vshaft 17 and operated upon by the needles.

The rods are stepped in recesses therefor'in the indicator-levers, as shown, and said levers yare extended to engage the lower hooks.

A bell-crank lever 18 is movably secu'red to one of the side pieces 1 of the frame and is connected by a rod 19 to one arm of a second bell-crank lever 20, the other arm of the bellvcrank lever 18 having a dependingrod 21 pivoted thereto, which is connected at its jlower end to a card-cylinder 22, the pattern4 needles 23 being mounted in a guide 23. Ad-

vare movably connected to a transverse shaft 27 at the top of the supporting-frame, and each is provided with a depending arm 28, connected to the harness-frame by a cord or yiiexible connection 29, that passes over a sheave-wheel 30, the connection being made by a loop 31, that engages one of a series of notches or recesses 32 at the inner side of the IOO said arm. v- In connection with the jack-levers 1l, that are pivoted to the harness-levers 12, are cross-bars and 311, ext-ending between the side pieces of the frame and forming stops for the said jack-levers. The device for releasing the hooks consists of a shaft 35, located and suitably supported at one side of the machine. This shaft is provided with a spirally-arranged projection or n 37. The said projection 37 engages the hooks and moves them out of contact with the knives.

The shaft 35 is operated by a lever 36, having a counterbalanGing-weight 38. It should be understood that when the hooks are disengaged they will be returned to their normal positions through the intervention ot' the levers 12 and weighted flexible connections which pass over the sheave wheel. The weight of harness and Weights on the bottom of the hooks serve to return the hooks to their norlnal positions after they have been forced off from the knives by the spiral projection 37. The lever 36, which operates the shaft 35 to disengage the hooks, is limited in its movement in both directions b va suitable lug or projection 30, as shown in Fig. l, which is adapted to engage with shoulders or stops 40 on an adjoining bracket at the end of upper plunger-rod 6.

In theoperation of the machine the Inovement of the lever 4t will cause an opposite reciprocation of the upper and lower hooks through the intervention of the plunger-rods connected to the arms 3 by the links S, and thereby carry the knives that engage the hooks and push them forwardly,` the said lever II being operated by well-known mechanism, as clearly shown in patent granted to NV. P. Uhlinger, dated May 21, 1889, No. 403,565. The card-cylinder is elevated and lowered at every rotation of the crank-shaft and beat of the lay and is driven by an eccentric or crank from the main shaft of the loom, which is connected to the end of the bell-crank lever 20, motion being imparted through the rod 19 to the bell-crank lever 1S and thence by the depending rod 2l to the said cylinder. The vertical reciprocation of On the upward movement of the card-cylinder the needle 23 will engage the indicator-lever 16, provided a blank space of the card is under the same. If an opening in the card is presented, to the needle, the latter Will not be operated upon, but remain in the position shown in Fig. l. When the blank space comes under the needle, the indicator-lever 16 is pressed upon in each instance and the rod'l4 is let down, as also the endof the indicator-lever. Of course when the said indicator-lever is operated or raised by the needle the hooks are relieved and drop by gravity, and the knife in its outward course does not engage the hook, and consequently the harness-shaft which is operated remains in the lowered position. By the inverted arrangement of the hooks a great advantage is secured. In ordinary card-dobbies the hooks are in reverse positions to those shown in the drawings and must be held up when the cylinder operates, and the needles must lift the hooks off the knives. By pulling the hooks through the mechanism set forth jack-levers are actuated, and if both hooks are pulled alternately the harness-shaft will stay up, and if after one pick the hooks are engaged they will rise, and if after the next pick the hooks are not engaged the harness-shaft will stay down.

Having thus described the invention, what is claimed as new is- In a loom, the combination of a pair of plungers carrying knives, upper and lower hooks having the shouldered portions thereof uppermost, a card-cylinder and mechanism for synchronously operating the several parts, an outer shaft located in the range of the plunger having a projection thereon arranged in a spiral line adapted to engage the ends of the upper set of hooks and provided with a counterbalan@ing-weight, and an operatinglever attached to said shaft, substantially as described.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

VILLIAM lV. UIILINGER.

lVitnesses:

EMIL IIAMPE, JOHN A. Mossnn.

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