US821549A - Tension device for dresser-reels. - Google Patents

Description

PATENTED MAY 22, 1906.

A. B. TAPLIN.

TENSION DEVICE FOR DRESSER REELS.

APPLICATION FILED MAYZB, 1905.

UNITED STATES PAT ENT. OFFICE.

ALDEN BURTT TAPLIN, or KEENE, NEW HAMPSHIRE.

TENSION DEVICE FOR DRESSER-HEELS.

Specification of Letters Patent.

Patented May 22, 1906.

Application file'l May 25, 1905. Serial No. 262,266.

To all whom it may concern.-

Be it known-that I, ALDEN BURTT TAPLIN, a citizen of the United States, residing at Keene, in the county of Cheshire and State of New Hampshire, have invented certain new and useful Improvements in Tension Devices for Dresser-Reels; and I do declare the following to be a full, clear, and exact de scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in tension devices for use on dresser-reels employed for dressing warp for looms; and it consists in the construction, combination, and arrangement of devices hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of a tension device embodying my improvements. Fig; 2 is a side elevation of the same in operative relation to a spool in a rack, and Fig. 3 is a detail sectional view. Fig. 4 is a detail elevation of the cam-arm with which the pivot-shaft is provided.

My improved tension device comprises a bearing element, an angularly-movable tension-plate to bear on the spool and pivotally mounted in the bearing element, a spring to apply tension to the tension-plate, and means to lock the tension-plate in an elevated position to hold it out of engagement with the spool. The bearing member'is here shown as a plate 1 adapted to be secured to one side 2 of the rack, provided with a bearing 3 and having a locking-stud 4 projecting from its inner side. The tension-plate 5, which may be of the form here shown or of any other suitable construction, is provided at its inner end on its outer side with a lug 6, having a set-screw 7. A pivot-shaft 8 forthe tensionplate is journaled in the bearing 3 and has its inner end turned angularly, as at 9, inserted in an opening in the lug 6, and engaged by the set-screw 7, so that the tension-plate is detachably secured to the said pivot-shaft. At the outer end of the pivot-shaft is an arm 10 and a segment-arm 11, said arm 10 and segment-arm 11 being here shown as formed integrally and having a common bearing portion 12 at their inner ends, provided with an opening for the reception of the inner end of the pivot-shaft and with a set-screw 13 to clamp said arm to said pivot-shaft. Aspring 14 is employed to move the pivot-shaft endwise in one direction. Said spring is here shown as a coil-spring disposed between the bearing or head 12 and the bearing 3. At a suitable distance from the bearing-plate 1 there is a hook 15, which is secured to the side 2 of the rack and to which is connected one end of a tension-spring 16, (here shown as a coil-spring) said tension-spring engaging the segment-arm 11 and its free end being connected to said segment-arm, as at 17. The function of the said tension-spring, as will be understood, is to cause the tensionplate to bear on the warp of the spool a and to continue to bear on the arm as the same unwinds from the spool. By means of the arm 10 the pivot-shaft may be turned to raise the tension-plate from the spool. To secure the tension-platein such elevated position, I provide a cam-arm 18, which is here shown as secured on the pivot-shaft by means of a set-screw 19 at a point on the inner side of the bearing 3. When the tensionplate is raised from the spool by the partial rotation of the pivot-shaft, the cam-arm by coaction with the stud 4 moves the pivotshaft inwardly to a slight extent against the tension of the spring 14, and as the cam-arm clears the said stud the said spring 14 draws the pivot-shaft outwardly so as to engage the said cam-arm with one side of the said stud to form a stop which coacts with the said stud to lock the tension-plate in its elevated position. As soon as the cam-arm is disengaged from the stud, which may be done by moving the pivot-shaft inwardly against the tension of the spring 1 1, the spring 16 in coaction with the segment-arm and the pivotshaft reapplies the tension-plate to the spool, the tension of the spring 16 serving to keep the tension-plate in engagement with the spool as the warpyarn unwinds therefrom.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended ex lanation.

Various changes in the iorm, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. The combination of a pivotallyanounted tension-plate, a tension-spring to normally engage the tension-plate with a yarn-spool, i ment in the bearing,

and means to automatically lock the tensionplate in position when the same has been disengaged from the spool.

5 2. The combination, in tension devices of the class described, of a bearing, a tensionplate, a pivot-shaft therefor, ournaled in the bearing, a tension-spring connected to the pivot-shaft to normally engage the tension- IO plate with a spool, and means to automatically lock the pivot-shaft in position to hold the tension-plate out of engagement with the spool.

3. The combination, in tension devices of 15 the class described, of a bearing, a pivotshaft having revoluble and longitudinal movea tension-plate carried by the pivot-shaft, a tension-spring to turn the shaft and tension-plate in one direction, a spring to move the shaft longitudinally in one direction, and locking means including a cam to move said shaft in the reverse direction and lock the same in position to support the tension-plate against the tension of the tens1on-spr1ng.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

ALDEN BURTT TAPLIN. Witnesses:

EDWARD LONG, WORTHER D. VVHITTAKER.

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