US772890A - Let-off and take-up mechanism for looms. - Google Patents

Description

PATENTED OCT. 18, 1904.

4 W. F. KINTZING. 'LET-DFF AND TAKE-UP MECHANISM FOR LOOMS.

APPLICATION FILED 1 313.25, 19o4. 1m MODEL.

Ina zzfr UNIT D STATES Patented October 18,1904.

PAT NT OFFICE.

WILLIAM F. KINTZING, OF HANOVER, PENNSYLVANIA.

LET-OFF AND TAKE-UP MECHANISM FOR LOOMS- SPE(LIFIGA'J.IO1\T forming part of Letters Patent No. 772,890, dated October 18, 1904.

Application filed February 25, 1904. Serial No. 195,152. (N0 model.)

To all whom, it may concern:

Be it known that I, WILLIAM F. KINTZING, a citizen of the United States, residing at Hanover, in the county of York and State of Pennsylvania, have invented certain new and useful Improvements in Let-Off andTake-Up Mechanismfor Looms; and I do declare the follow ing to be a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and t0 the figures of reference marked thereon, which form a part of this specification. 7

My invention relates to let-off and take-up mechanism for looms, more particularly for looms designed for weaving wire-cloth; and it has reference more particularly to means for automatically winding the cloth upon the winding drum as a given quantity .of the cloth is woven, said drum being automatically thrown out of operation when a givenquantity of cloth has been wound thereon and into operation when another given quantity has been woven and is ready to be wound upon the winding-drum. Its object is to provideimproved means for effecting the operation ust referred to; and to theaccomplishment of the same and such other objects as may hereinafter appear the inventionconsist-s in the construction and in the combination of parts hereinafter particularly described and then sought to be clearly defined by the claims, reference being had to theaccompanying drawings, forming a part hereof, in which 1 Figure 1 is aside elevation of so much of a loom-frame as is necessary to illustrate the application of my present invention. Fig. 2 is an end view of the bracket attached to the tension-frame'and the swinginglatch. Fig. 3 is a detailed perspective of a part of the tension-frame, bracket, and clutch-lever.

In the drawings the numeral 1 designates the loom-frame, and 2 the warp reel or drum from which the wire 3 is fed and which after passing through the heddles of the harness, as ordinarily in wire-cloth looms, then passes I over a guide-roller 4 and from thence around a roller 5, carried bya swingingtension-frame 6, and thence to the winding-drum 7.

The numeral 8 designates a divided or twopart driven shaft which derives motion from a shaft 9, having a beveled gear 10, which meshes with the beveled gear 11 on the shaft 8, the shaft 9 being also provided witha gear 12, with which meshes a gear 13, deriving motion from the gear 14 on the shaft 15, to which power is communicated in any suitable manner. "The gear 13 may be supported in a swinging bracket 16, of which there may be two, said bracket'being journaled on the shaft '15 of the gear 14, thus permitting change of speed of rotation of the shaft 8 by changing the size of the gears12 and 13, one or the other, and the bracket 16 may be held to its adjusted position, for instance, by a slotted shaft is journaled in suitable brackets 26, said warp-drum thus having motion imparted to it. The part of the driven shaft next to the winding-drum is provided with a worm 27, which meshes with the worm-wheel 28 on the shaft of said drum, so as to impart motion to the winding-drum. The part of the shaft 8 toward the warp-drum is made separate from the part of the same shaft next to the wind ing-drum, and the two parts of the shaft at their adjacent ends are to be provided with a clutch mechanism by which the two parts of the shaft may be coupled and uncoupled in order that the winding-drum at the proper time may be thrown into operation to wind the cloth thereon and out of operation until the time arrives for winding more cloth on the drum.

The parts so far described are similar in construction and mode of operation to the corresponding parts illustrated in my Patent No.

737,938, September 1, 1903, and are herein illustrated and described merely as an illustration of a suitable type of machine in connection with which my present invention may be employed.

The following instrumentalities are employed for automatically rotating the windingdrum when a sufiicient quantity of cloth has been woven to be wound thereon and for automatically stopping its rotation until another given quantity of cloth has been woven: To one part of the driven shaft 8 is fixed one member 29 of a clutch, and to the other part of the shaft is slidably connected the other member 30 of the clutch, said member having a peripheral groove 31 in which fit the inturned fingers 32 of a yoke 33, which is journaled upon a pin 34, extending from one of the uprights of the loom-frame 1, and from this yoke extends a lever-arm 35. To the swinging tension-frame 6 is bolted or otherwise attached a vertically-slotted bracket or casting 36, which at its upper and lower ends carries slidable pins 37 and 38, which are respectively under the influence of springs 39 and 40, which pins constitute or serve as eushion-buffers for the purpose hereinafter described. The clutchlever arm 35 passes through the slot of the bracket 36 between the adjacent ends of the cushioned pins 37 and 38, and the bracket is provided with adjustable stops located above and below the lever-arm 35 and line therewith, which stops may consist of set screws or bolts 41 and 42, passing through cars 43 and 44, extending from the bracket 36, and said bracket is also formed with a laterallyextending finger 45. An arm 46 is swung from one of the uprights of the loom-frame 1 by a bolt 47 or otherwise, and is formed with a shoulder 48, which is adapted to lie beneath the lever-arm 35 and have the latter rest thereon when the lever-arm is in its raised position and the two parts of the drive-shaft 8 are unclutched, and thus the lever-arm will be prevented from dropping or being moved downward until the swingingarm 46 is swung, so as to move the shoulder 48 from beneath the clutch-lever arm.

\Vith the parts thus constructed and applied and assuming that they are in the position illustrated in Fig. 1 of the drawings, with the two parts of the drive-shaft uncoupled and the tension-frame 6 free to move downward, the weight of the tension-frame will draw the bracket 36 downward and compress the spring 39, which encircles the pin 37, and at the proper time cause the lateral finger 45 of the bracket to bear against the swinging latch-arm 46, so as to carry the shoulder 48 thereof from beneath the lever-arm 35, whereupon the tendency of the compressed spring 39 to expand will quickly throw the lever-arm 35 and bring the clutch members into engagement with each other, so that the winding-drum 7 will be caused to turn and the cloth to be wound thereon. This lifts the tension-frame (i and causes the lower spring-infiuenced pin 38 to bear against the lower face of the clutch-lever arm until the spring 40 is compressed sufiicientl y that its power, together with the pressure exerted by the upward movement of the tension-frame, will overcome the friction between the clutch members and the weight of the clutch-lever arm, when the power of the compressed spring 40 will exert itself, so as to promptly disengage the clutch members, and thus stop the rotation of the windingdrum. In the meantime the swinging latcharm 46 swings inward, so as to bring the shoulder 48 beneath the clutch-lever arm 35, as before, when the operations described are repeated in alternation. The winding-drum is thus automatically thrown into and out of operation, so that when a given amount of cloth has been woven it is wound upon the drum, and the rotation of the latter then stops until another given amount of cloth has been woven, which in like manner is wound upon the drum, and so the operation continues.

The bracket carrying the spring-cushioned pins and moving with the tension-frame causes quick movement of the clutch in both locking and unlocking the clutch, and yet the movements of the parts are cushioned so that injurious jarring is prevented and smoothness of operation and prolonged life given to the parts. The degree of compression allowed to the springs 39 and 40 of the cushioning-pins 37 and 38 may be regulated and controlled by adjustment of the set-stops 42 and 43, as it is apparent that by adjustment of these stops more or less compression of the springs may be permitted, and thus the force or power of the springs regulated.

I have illustrated and described with particularity the preferred details of construction and operation of parts; but it is to he understood that changes can be made in the details and material features of my invention be retained.

I-Iavingdeseribed my invention and set forth its merits, what 11 claim is 1. In a let-elf and take-up mechanism for looms, the combination with the warp-d rum, the winding-drum, and a clutch-lever through which the winding-drum is thrown into and out of operation, of atension-framc provided with a bracket carrying spring-influenced pins arranged to bear against opposite faces of the clutch-lever in alternation in throwing the winding-drum into and out of operation, substantially as described.

2. In a let-off and take-up mechanism for looms, the combination with the warp-drum, the winding-drum, and a clutch-lever through which the winding-drum is thrown into and out of operation, of a tension-frame provided with a bracket carrying spring-influenced pins arranged to bear against opposite faces of the clutch-lever in alternation, and adjustable stops for regulating the extent of compression of the springs which act on the pin substantially as described.

3. In a let-ofl and'take-up mechanism for.

looms, the combination with the warp-drum, the winding-drum, and a clutch-lever through which the winding-drum is thrown into and out of operation, of atension-fram'e provided -with a bracket carrying spring-influenced pins arranged to bear against opposite faces of the clutch-lever 1n alternation, a swinging latch adapted to lie in-the path of the clutchlever, and means for moving said latch out of the path of the lever, substantially as described. I v

4. In a let-ofii' and take-up mechanism for looms, the combination with the warp-drum,

the winding-drum, and a clutch-lever through 1 which the winding-drum is thrown into and out of operation, of a tension-frame provided with a slotted bracket through which the clutch-lever passes, spring-influenced pins supported by the bracket on opposite faces of the clutch-lever, a swinging latch arranged .VVILLIAM F. KINTZING.

Witnesses:

GHAs. H; HEINDEL, G. M. HEINDEL.

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