US2304370A - Spindle mounting for spinning and twister frames - Google Patents

Description

A c. M. NEAL. 2,304,370 SPINDLE MOUNTING FOR SPIINNING AND TWISTERAFRAMES Dec. 8, 1942.

Filed oct. 1o, 1941 2 Sheets-Sheet 1 n lNvEN z ATTORNEY.

'III IIIIIIII C. M. NEAL Dec. as.v 1942.`

Filed Oct. 10,` 1.941 2 Sheets-Sheet 2 INVENTOR l ATTORNEY- Patented Dec. 8, 1942 SPINDLE MOUNTING Foa srlNNmG AND 'rwrs'rsn FRAMES Charles Millard Neal, Biddeford, Maine, assigner to Saco-Lowell Shops, Boston, Mass., a corporation. of Maine Application October 10, 1941, Serial No. 414,468

Claims.

This invention relates to the spindles used in spinning and twister frames and is more espeeially concerned with the mounting of such spindles in these machines.

It has been proposed heretofore to introduce some means between a spindle base and the rail on which it is mounted adapted to minimize the transmission of vibration from the spindle to the rail. Several factors are responsible for the creation of such vibration and some of them manifest themselves in an appreciable degree even in a smoothly running spindlei For example, if the load carried by the spindle is unbalanced (and it rarely is perfectly balanced) or the spindle mounting is not adapted to accommodate effects of such unbalance, then vibration of the spindle may become very pronounced and highly disagreeable.

While various schemes for isolating the spindles from the rail have been suggested, and these suggestions have extended over a long period of years, none of them, so far as I have been able to learn, has been used to any substantial extent. Apparently the reason for this condition is the fact that the diiliculties which vibration isolating elements introduce in the installation, adjustment and servicing of the spindle, are commonly regarded as out-weighing their advantages.

The present invention is especially concerned with these considerations and it aims to devise a spindle mounting provided with suitable vibration isolating means, so organized and arranged as not to interfere materially with the installation, adjustment or servicing of the spindle.

The nature of the invention will be readily understood from the following description when read in connection with the accompanying drawings, and the no vel features will be particularly pointed out in the appended claims.

In the drawings,

Figure 1 is a vertical, sectional view of a spindle and a mounting therefor embodying features o this invention; and

VFigs. 2, 3 and 4 are similar views of other forms that the invention may take.

-Referring first to Fig. 1, the spindle thereV a series of holes through the rail at properly spaced intervals, these holes being adapted to receive the bases in which the respective spindle blades are mounted. For the purposes of this invention, a special base structure is provided comprising a spindle base l, a supplemental base including the part 8, and resilient washers 9 interposed between the rail and the supplemental base and clamped upon the rail by means of a nut IU and washer l I, the nut being threaded on the lower end portion of the part 8.A This part 8 consists of a bushing flanged at its upper end, as 'clearly shown in the drawing. The spindle base 'l has a pressed ilt with the blade 2 and it is clamped to the supplemental base by means of a washer I3 and a nut l2 threaded directly on the lower end of the blade.

The operation of installing the spindle on a rail includes not only the assembly of these parts inthe relationship shown in Fig. l, but also the centering of the spindle in the rail in properly spaced relationship to the other spindles mounted on the same rail and a "plumbing operation. Centering necessarily requires some provision for adjusting the blade laterally in directions both transversely and longitudinally of the rail, while plumbing involves some arrangement permitting angular adjustments to bring the spindle blade into a true vertical position, it being understood that the upper surface of the rail is accurately leveled before installation of the spindles is begun. Both of these operations are facilitated in the construction shown by providing ample clearance between the blade 2 and the bushing 8 to permit the centering adjustment and also by machining flat meeting surfaces on the bottom and top, respectively, of the flange a of the base 'l and the flange b of the part 8. The conventional method of plumbing consists in inserting thin shims of sheet material, such as paper, between the base of a spindle and the rail at one side or another, as may be found necessary, in

order to bring the spindle into a true vertical position. This same practice may be followed in plumbing the spindle shown in Fig. 1, since shims may be inserted between the plumbing surfaces of the flanges a and b of the base l and the supplemental base part 8 in such locations and of such thicknesses as to bring the spindle into its plumb position. Thereafter it is clamped in that position by tightening 'up the nut I2. Also, it should be observed that this operation does not interfere with the adjustment of the pressure with which the resilient washers 9 and I0 grip the rail since the latter adjustment is accomplished by tightening the nut l0 and therefore is quite independent of the plumbing adjustment.

'I'he washers 9 may be made of any suitable vibration isolating material, such as soft rubber,

. felt, cork compositions, or the like. Thus in this construction the objections above described to the prior methods of using vibration isolaters between the spindle and the rail are obviated while still maintaining the expense of manufacture and installation of these spindle structures within entirely reasonable limits.

Fig. 2 shows a very similar arrangement difiering, however, from that just described in that the resilient washers are interposed between the spindle base 1 and the supplemental base t'. A nut I2' threaded directly on the lower end of the blade 2' cooperates with a washer i3 and the spindle base 'I' in clamping the two cushioning elements 9' directly upon the flange of the v through pressure applied by means of the supplemental base piece The upright bodyi portion of this part 8 extends loosely through the aperture in the rail 6' and is clamped there by means of the nut i0 so that both the centering adjustment and the plumbing operation may be performed in the conventional manner through adjustment of the supplemental base on the rail. In other words, the part t' has ample lateral clearance with the walls of the aperture in the rail 6' to permit the iirst of these adjustments, and the plumbing surfaces here used are the upper surface of the rail itself and 'the annular surface of the supplemental base which rests on said rail.

'Ihis construction has the advantage, however, over that shown in Fig. l, in that the two base pieces 1' and 8' and the cushioning elements 9' are all clamped together by the nut threaded on the blade 2 so that all of these parts may be assembled prior to mounting the spindle on the rail. Thus these assemblies may be completed at their point of manufacture and prior to shipment, and the pressures applied to the cushioning members 9' and, consequently, those pressures under which they are to work, ,may be accurately predetermined in the factory and need not thereafter be changed because of any requirements of the installation, adjustment, or plumbing of the spindle. If it should be desired to remove the entire spindle structure from the rail for any reason, as for repairs, this can be done by taking voff the nut it' and such repair would not aiect the adjustment of the pressure on the cushioning elements unless it directly involved these elements or those parts required in holding them under compression.

In some cases it is desirable to remove a spindle for cleaning, replacement of the bearings, or for some other reason, and Fig. 3 shows a construction similar to those illustrated in Figs. 1 and 2 but in which provision is made for such removal and replacement without disturbing either the plumbing or centering adjustments or the adjustment of the pressure on the vibration l isolating members. In this construction the spindle base 1 is given the form of a bushing, flanged at its upper end and internally threaded near its lower end, and the lower end of the blade 2" is threaded directly into the bushing nut l2".

It will be evident that with this arrangement, if it should be desired to remove the spindle itself for any reason, the nut I4 can be unthreaded from the blade and thereafter the spindle, together with the parts supported on it, can also be unscrewed from the base 1". It can be replaced again by a reversal of these operations.

While the invention has been above described in connection with spindles of the stationary.

i in a base i8 of conventional form having a lower extension I9 which provides a well in which a considerable portion of the bolster and the lower portion of the blade are enclosed. Here the base i8 can be made to cooperate with the vibration isolating elements and the means for clamping them in the same manner as does the base I in the construction shown in Fig. 2. That is, the resilient washers 20 are clamped upon the flange of a supplemental base piece 2|, like the base piece 8', by means of a nut 22 and washer 23, and the supplemental base is releasably secured to the spindle rail 25 by a nut 25-and washer 26.

By similar expedients a revolving blade type v of spindle structure could be substituted for the spindle shown in Figs. 1 and 3, suitable changes in shape and dimensions ofthe parts being made to accommodate the differences in design.

It will be evident from the foregoing that this invention provides thoroughly practical arrangements for utilizing vibration isolating mountings in the support of spindles while still permitting them to be installed, adjusted and serviced with essentially the same ease and facility as are spindles of the conventional constructions.

rail, of a spindle, means supporting said spindle and is clamped there by a check nut id. Above for lateral adjustment on said rail and for plumbing, and resilient cushioning means interposed between said rail and said spindle.

2. A mounting for spinning and twister spindles comprising the combination with a spindle rail having an aperture therethrough, of a spindle, means supporting said spindle in said aperture for lateral adjustment therein including resilient cushioning means interposed between said rail and said spindle, and screw-threaded parts operable to secure the spindle in its adjusted position on the rail, said supporting means including rigid surfaces superposed, one on the other, by means of which the spindle may be plumbed.

3. A mounting for spinning and twister spindles comprising the combination with a spindle rail, of a spindle blade, a spindle base supporting said blade, a supplemental base mounted on said rail and supporting said spindle base, and resilient cushioning means interposed between said blade and said rail, one of said bases having a rigid surface cooperating with another rigid surface of the mounting to facilitate the plumbing f the spindle.

4. A mounting for spinning and twister spindles comprising the combination with a spindle rail, of a spindle blade, a spindle base supporting said blade, a supplemental base mounted on said rail and supporting said spindle base, and resilient cushioning means interposed between said blade and said rail, said bases having cooperating spindle plumbing surfaces.

5. A mounting for spinning and twister spindles comprising the combination with a spindle rail, of a spindle blade, a spindle base supporting said blade, a supplemental base mounted on said rail, means for clamping said spindle base to said supplemental base, and resilient cushioning means interposed between said rail and said supplemental base and supporting both of said bases for limited and resiliently opposed angular movement relatively to the rail.

6. A mounting for spinning and twister spindles comprising the combination with a spindle rail, of a spindle blade, a spindle base supporting said blade, a supplemental base mounted on said' rail, means for clamping said spindle base to said supplemental base, resilient cushioning means interposed between said rail and said supplemental base and supporting both of'said bases for limited and resiliently opposed angular movement relatively to the rail, said cushioning means CTI gripping said rail, and means operable to adjust the pressure with which said cushioning means grip the rail.

7. A mounting for spinning and twister spindles comprising the combination with a spindle rail, of a spindle blade, a spindle base supporting said blade, a supplemental base mounted on said rail, means for clamping said spindle base to said supplemental base, and resilient cushioning means between said bases supporting the spindle for limited and resiliently opposed angular deection relatively to said supplemental base and said rail.

8. A mounting for spinning and twister spindles comprising the combination with a spindle rail, of a spindle blade, a spindle base supporting said blade, a supplemental base mounted on said rail, screw-threaded means for releasably fastening saidV spindle base to said supplemental base, said bases 'being constructed for relative lateral adjustment, and means for releasably securing said supplemental base to said rail.

9. A mounting for spinning and twister spindles comprising the combination with a spindle rail, of a spindle blade, a spindle base supporting said blade, a supplemental base mounted on said rail and supporting said spindle base, resilient cushioning means interposed between said bases and supporting the spindle blade for limited and resiliently opposed angular deflection relatively to said supplemental base, screwthreaded means for adjusting said cushioning means, and means for releasably securing said supplemental base to said rail for both lateral adjustment relatively thereto and also for plumbing.

10. A mounting for spinning and twister spindles comprising the combination with a spindle rail, of a spindle blade, a spindle base supporting said blade, a supplemental base mounted on said rail and supporting said spindle base, resilient cushioning means interposed between said bases and isolating one from the other, said spindle blade being releasably connected with said supplemental base and said cushioning means whereby it may be removed without disturbing the adjustment of the cushioning means, and means for releasably securing said supplemental base to said rail both for lateral adjustment relatively thereto and also in plumbing relationship thereto.

ll. A mounting for spinning and twister spindles comprising the combination with a spindle rail having an aperture therethrough, a spindle structure including a spindle blade and a base therefor, a supplemental base mounted in said aperture, means for securing said spindle base to said supplemental base, the spindle base being laterally adjustable in said supplemental base, means for clamping said supplemental base to said rail, and resilient cushioning'means interposed between said rail and said supplemental base and supporting both the spindle base and the supplemental base for limited angular deiiection relatively to the rail, said cushioning means serving to isolate the supplemental base and the spindle base from said rail.

l2. A mounting for `spinning and twister spindles comprising the combination with a spindle rail, of a spindle blade, a spindle base supporting said blade, a supplemental base, means for releasably securing said 4supplemental base to said rail, resilient cushioning means interposed between said rail and said spindle base, and screw-threaded means for adjusting said cushioning means, said spindle blade being releasably secured to its spindle base so that it may be removed from the spindle mounting without vdisturbing the adjustment of said cushioning means.

13. A mounting for spinning and twister spindles comprising the combination with a spindle rail, of a spindle blade, a spindle base supporting said blade, a supplemental base, means for releasably securing said supplemental base to said rail, resilient cushioning means interposed between said bases and-isolating one from the other, screw-threaded means cooperating with said spindle blade to clamp said bases together and to adjust said cushioning means, whereby it holds said bases,-said'."cushion ing meansand said spindle together as an assembly adapted to be mounted on or removed from said rail as a unit.

CHARLES MILLARD NEAL.

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