US781976A - Revolving bearing. - Google Patents

Description

No. 781,976. PATENTED PEB. 7, 1905. F. TBR WBELE.

REVOLVING BEARING.

APPL'wArIoN FILED SEPT. 12, 190s.

" umm W/T'NEsSES:

`UNiTED STATES Patented February '7, 1905.

FFICEs REVOLVING BEARING.

SPECIFICATION forming part of Letters Patent No. 781,976, dated February '7, 1905.

Application filed September l2, 1903, Serial No. 172,922.

To {L7/l 107mm, it Marty conc/2771i.-

Be it known that I, FRDRIC TER WnnLn, engineer', a subject of the Queen of the Netherlands, residing at Q6 Rue de Foucharupt, St. l)i(, Department of Vosges, France, have invented a certain new and useful Improvement in Revolving Bearings, of which the following is a full. clear, and exact description and for which l have applied for Letters Patent in France, dated October 9, 1902, and in Great Britain, dated January 1'2, 1903.

rlhis invention relates to an improved form of bearings for pasting or sizing machines or similar machines` in which rows of yarn or threads are drawn over a revolving drum.

lt is known that in machines for sizing' warp-threads intended for weaving, such machines being known as pasting or sizing machines, tive or six warp-rollers are usually arranged behind the machine and over which the row of threads or warp from these rollers will pass into a size bath or trough, wherein it is impregnated with size, afterward passing' over two rollers known as sizerollers,`r` each furnished with a pressure-roller, and having for object to cause the size to penetrate into the interior of the yarn and to express any excess of size with which the warp is impregnated. Thence the warp passes around two drying-drums, and after having traversed a free space, where it is dried, the warp is wound upon a beam intended for the weaving-loom. To the beam is imparted by means of a belt and two cones a movement which slows down prtnrortionally as the diameter of the beam increases, so as to wind the warp at a constant speed. 'lhe warp drives` the two drying-druins, which are generally of copper and of large size. The warp also rotates the size-rollers and the warprollers. The warp-rollers are often provided with a brake for the purpose of imparting a slight tension to the warp, so that it passes in a more regular manner through the sizetrough. The drying-drums being` very heavy, for the purpose of lessening the tension on the warp the shafts of these drums are generally rotated in rolleror ball bearings, which afford a smoother working. In the case of warps of line threads and those in which the number of threads is not very considerable the sizerollers are often driven by a frictional clutch or device having a leather facing to lessen the tension on the warp.

Now the object of the present invention is to attain the same result, but in a much more perfect manner-that is to say, to subject the warp to very little tension and at the same time to insure the perfect regularity of this tension by the application around the shafts of the drums of the sizing-machines of revolving bearings, controlled and rotated by suitable gearing and driving by friction the shafts of the said drums.

In order that my invention may be clearly understood, vl. have shown it, by way of example, upon the annexed drawings, in which-'- Figure 1 is an elevation of a drying-drum of a sizing-machine the shafts of which are furnished with my improvement. Fig. 2 is an end view, on an enlarged scale, of one of these shafts and of its control mechanism. Fig. 3 is a vertical section of this shaft and its gearing on the same scale as Fig. Q.

ln the ligures, A represents thel dryingdrum, and ft its shafts, which latter are hollow, as usual, to afford passage on the one side to the steam which enters the drum and on the other side for the exit of condensed water. ln lieu of rotating the shaft of the drums on balls, rollers, or the like these shafts arc mounted, as stated above. in rotating bearings I', fast to the toothed wheels e, driven from the motor by any suitable gearing -lor example, by a toothed wheel 1l. The rotating bearings /1 turn in lixed journals 1^, fast to the framefol' the machine. The drum is thus caused to revolve by the friction of ils shafts in rotating bearings, and the sized warp which passes over the drum will be so much the more eased as the speed which the rotating bearings communicate by driving to the said drum more nearly approaches that which the drum receives from the warp. In other words, the sized warp will be as much more eased as the difference between the angular speed of the revolving bearings and that of the drum is smaller. The angular velocity of the drum should be a little more than that of the rotating bearings, so as to have a suit- IOO able tension on the warp. The same arrangement of rotating bearings can be applied to the size rollers or cylinders as well as to the pressure-rollers, and a slight and very regular tension of the warp between the size-rollers and the drums is thus obtained. /Vith regard to the warp-rollers in place of applying thereto a brake, the effect of which is not very regular, I may also revolve their shafts in rotating bearings; but these latter should turn in a direction opposite to the movement of unwinding the warp-rollers if it is wished that these bearings should act as a brake.y or, on the contrary, in the same direction as the warp-rollers if it is wished to lighten the draft or driving strain which the warp causes. Finally, the rotating bearings hereinbefore described can be applied to the beam on which the sized and dried threads are wound.

Having thus described my invention, what I claim as such, and desire to secure by Letters Patent, is4 f In a machine for sizing or otherwise handling yarns or threads, a revolving drum, over which such yarns or threads are drawn, and which has end journals or shafts in combination with fixed bearings and intermediate revolving bearings for said journals, or shafts, and gearing independent of the drum to impart motion to said revolving bearings, as and for the purpose described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

FREDERIC TER WTEELE. iVitnesses:

PAUL F. PQUET, (JrUs'rAvE DUMONT.

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