US1213741A - Spindle-driving mechanism. - Google Patents

Description

II. G. CABLE.

SPINDLE DRIVING IVIECHANISIVI.

APPLICATION man ocr. 27. 19:4.

Lm @L Patented. Jn. 23, 1917.

ien inm ROBERT GRANVILLE CABLE, OF WOONSOCKET, RHODE ISLAND.

SPINDLE-DRIVING MECHANISM.

To all whom t may concern: l

Be it known that l, ROBERT Gr. CABLE, citizen of the United States, residing at l/Voonsocket, Rhode lsland, have invented certain new and useful Improvements in Spindle- Driving Mechanism, of which the following is a specification.

My present invention relates to improvements in spindle driving mechanism such as used for driving spindles of spinning and twisting machines.

Among the objects of the invention are to provide a device which will reduce the load on the spindles to the minimum amount, thus effecting a saving in power and which will make the twists even on all bobbins and save the waste caused by soft bobbins, and the difficulties arising from uneven twists and winding.

`With these and other objects in view, the invention includes the novel features of construction and arrangement and combination of parts hereinafter described and particularly defined by the appended claims.

An embodiment of the invention is illus` trated in the accompanying drawings, in which- Figure 1 is a plan view of a driving drum with two rows of spindles with my improved guiding` and tension means applied thereto, and Figs. 2 and 3 are detail views in sectional elevation, Fig. 2 being a section on line 2--2 of Fig. 1.

Referring by reference characters to these drawings, the numeral 1 designates the driving drum of the ordinary or any desired construction, which may be driven in any suitable inanner, and 2 the spindles, each of which is provided with a pulley 2a.

3 designates the driving band which is passed alternately around the drum and spindles. Where two rows of spindles are driven from a single drum, as shown in the drawings, the endless driving band would pass alternately around the drum and the successive spindles on one side, and thence alternately around the drum and the successive spindles on the other side. ln order to properly guide the band and maintain the best degree of tension thereon without unduly loading the spindles, l provide the following described mechanism: A rod or bar 4L is mounted in suitable bearings 5 and extends longitudinally between one row of spindles and the drum, and parallel thereto, and at one end of a section of spindlesthis Specicaton of Letters Patent. Pgmhm'dgd Jan, 23, 119:11?,

Application led October 27, 1914.

Serial No. 868,8236.

bar carries an adjustable bracket 6 which supports an idle guide roller 7 around which the endless band passes. At the opposite end-of the row of spindles and in proximity to the point where the driving band finally leaves the drum before passing to the end spindle of the section to recommence its travel around the spindle and drum and at the point which 1 term the slack end of the device, l provide a vertical rod or bar 8 which is adjustably mounted on the longitudinal bar 4 by inea-ns of a bracket 9. rlhe bracket 9 is adapted to be adjustably clamped to the longitudinal bar or rod by a set screw 9u, and the vertical bar or rod is capable of being adjusted vertically and clamped in any desired position by means of a set screw 9b. rfhe lower end of the vertical rod carries a laterally extending adjustable arm 10 upon which is journaled a guide pulley 11 around which the endless band travels after finally leaving the cylinder and before passing to the end spindle pulley. rlhe vertical bar or rod carries also at a suitable point above the guide pulley 11 a forked bracket 12 which is adjustably mounted on the vertical rodV and in the forked portion of which is mounted a pivoted arm 13, the end of which carries a tension pulley 14. The upper end of the vertical rod has a laterally extending arm 15 to which is connected one end of a tension spring 1G, the other end of which is connected to the pivoted arm 13. The portion of the band between the drum and the end spindle pulley, and which constitutes the slack portion of the belt, after leaving the drum is passed over this tension pulley 141 and under the stationary guide pulley 11 and the upward pull of the spring on the pivoted arm maintains the proper tension on the belt without unduly loading any of the spindles. By reason of the several adjustments of the parts hereinbefore referred to, the device may be quickly adapted for making opposite twists by changing the bands on the spindles instead of changing the direction of rotation of the driving cylinder, which is desirable in some types of machines. By placing the tension pulley where it acts only on the slack portion of the belt I am enabled to maintain suiicient tension by means of a much lighter spring than could be used if the spring had to carry part of the spinning pull. 1t will be understood that while l have shown my improved driving tension mechanism in connection with a drum and two rows of spindles, it is equally applicable to a construction in which the drum drives but a single row of spindles.

It will be understood that a spinning machine may have from one hundred and fty to two hundred spindles. Too large a number can not practically be run by a single driving band, and so I divide the spindles up into sections each comprising preferably not more than twenty spindles, each section having its own endless band and tension device. In the drawing I have illustrated the band of only one section, but it will be obvious that this could be repeated as often as the number of spindles and length of driving drum required.

I claim as my invention 1. In combination with a driving drum and spindles, an endless band passing alternately and successively around sait` drum and said spindles, a stationary guide pulley having its axis substantially parallel to thev axis of the drum and around which said band passes at the slack end of the drum, a pivotally supported arm carrying a pulley engaging the portion of the band between said drum and stationary guide pulley and swinging in a plane perpendicular to the axis of the drum and a spring exerting tension on said arm.

2. In combination with a driving drum and spindles, an endless band passing alternately around said drum and successively around said spindles, a bar arranged parallel with said drum, a vertically disposed rod carried by said bar, a stationar guide pulley carried by the lower part of said rod, around which said band passes, an arm pivomlly Supported from said upper portion of said vertical rod and carrying a pulley engaging the portion of the band between said drinn and stationary guide pulley, and means exerting tension on said arm.

3. In combination with a driving drum and spindles, a stationary guide pulley in proximity to the drum at one end of the spindles, an endless driving band passing around said. guide pulley and alternately around said drum and said spindles, a sian tionary guide pulley between the drum and spindles at the opposite end, and a tension pulley engaging the slack ot the belt between said last named guide pulley und the drum.

In testimony whereof, I aiix my signature in presence of two witnesses.

ROBERT GRANVILLE CABLE.

Witnesses:

SAMUEL FAnRoN, CHAs. E. BALLON.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C.

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