US420084A - Support for spinning-spindles - Google Patents

Description

(No Model.)

I J. H. McMULLAN.

SUPPORT FOR SPINNING SPINDLES.

Patented Jan. 28, 1890.

lNVENTU RI.

WITNESSES;

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JAMES H. MCMULLAN, OF PORTLAND,

MAINE, ASSIGNOR TO THE SAIVYER SPINDLE COMPANY, OF BOSTON, MASSACHUSETTS.

SUPPOQT FOR SPlNNING-SPINDLES'.

SPECIFICATION forming part of Letters Patent No. 420,084, dated January 28, 1890.

I Application filed November 14, 1837- Serial No. 255,072. [No model.)

To all whom it may concern.-

Be it known that 1, JAMES H. MOMULLAN, a citizen of the United States, residing at Portland, in the county of Cumberland and State of Maine, have invented certain new and useful Improvements in Supports for Spinning- Spindles, of which the following is a specification.

My invention is an improvement relating more especially to such spinningdevices as are secured to a single spindle-supporting rail, and also to that class of spinning devices the rotating parts of which are so supported that they may be deflected to a certain extent by the effect of an unbalanced load; and it consists of the construction and combination of parts, as hereinafter set forth.

My invention is illustrated in the accompanying drawings, in which- Figure 1 is an elevation, partly in central vertical section, of a single-rail spinning-spindle with the supports therefor. Fig. 2 is an elevation of the spindle with a sleeve-whirl attached thereto. Fig. 3 is an elevation of that form of step-support which I prefer to use. Fig. 4 is a central sectional elevation of a spindle-step with a portion of the spindle that is supported therein, and Fig. 5 is a plan of said step.

Similar reference-numbers refer to similar parts in all of the views.

In the drawings, 1 represents the bolsterbearin g support,which is preferably provided with the external collar 2, the nut 3, and the washer 4, said nut engaging with a screwthread upon the exterior of said support. I prefer to form an oil-chamber 5 in the upper part of the collar 2, as shown,and to form an oil-conduit 6 through the side of the support 1 and communicating with said chamber. Whenever it may be desired to do so, a washer 18 maybe placed encircling the elevated part 7 of the bolster-bearing support and covering the top of the oil-chamber 5 in the usual manner.

At the base of the support 1 is secured the step-case S in any convenient manner, the construction which I prefer being shown in the drawings. This preferred form of stepcase is provided with asleeve 9, screw-threaded in its interior and which engages with a screwthread upon the surface of the support 1. The step-case of this form is usually provided with flattened surfaces 10, which are adapted to receive a wrench. Below the bottom of the threaded part of the sleeve 9 is the step-well 11, in which the step 12 is supported. The step-case when made in this manner forms an oil-cup of considerable size,which receives the oil set free when the step is removed for examination or for the purpose of being cleansed, and thus prevents other parts of the spinning-frame and the floor from becoming soiled by the discolored oil at such times.

The step-case and step are preferably so made and combined that the axis of the step is always, though slightly variable in position, maintained in substantial alignment with the axis of said step-case by the walls of the step -receiving recess within said case. When the step and the step-case are thus made and combined, as illustrated in the drawings, the removal of the step-case to permit of examining the step and cleansing it and said case and the replacing of the stepcase may be easily effected without danger of the loss of any of the parts or of injury to any of the surroundings by the discolored oil in said case and the bolster-bearing support to which it is usually attached. The step 12 is made of such a size with respect to the other parts of the structure and of such a form that it maybe moved laterally to a slight extent in all directions, and it is preferably provided with one or more oil-holes 13,1eading from the space surrounding the step to the cavity in the interior thereof in which the spindle is supported. Said cavity is preferably made of the shape of the spindle, and

also a little larger than said spindle, as shown in Fig. 4; or, in other words, the spindle preferably fits loosely in said step. I prefer that one or both of the surfaces in contact at the bottom of the step 12-that is, the bottom of said step and the top of the upper of the disks 14should be plane, to the end that said step may easily yield laterally to a slight extent and with equal freedom in all directions upon the application of a force thereto in a lateral direction. I prefer also, although this construction is not absolutely necessary, to make the step-well 11 so deep that several IOC disks 14 may be placed therein below the bottom of the step 12. These disks may be made, when used, of any suitable material; but I prefer to form one or more of the lower disks 1n the series of leather or some other elastic material, in order to prevent the vibrations lnduced in the spindle-step 12 by the spindle 15 from being communicated to the bolsterbearing support 1, and thence to the spindlesupporting rail 16. These disks 14 may be entirely dispensed with whenever it is desirable to do so, if the bottom of the step-well 11 is properly shaped. The lower part of the spindle 15 is preferablymade of a small diameter and terminating in a sharp point, although any other suitable construction of these parts may be adopted at the will of the maker of the device to meet any unusual requirements. When the lower end of the spindle is made of a small diameter, as shown, the spindle increases in diameter as the bolster-bearing is approached from its lower end. The bolster-bearing is preferably cylindrical. The spindle is preferably provided with a sleeve-whirl, the plane of whose band-groove crosses said bearing in its bolster. The fit of the spindle 15 in its bolster-bearing should be a rather loose one, in order that the blade or upper unsupported end of the spindle may be able to yield slightly to the force exerted thereon by an unbalanced load. The central hole in the bolster-bearing support 1 is shown as a cylindrical one for the greater part of its extent, and slightly larger than the diameter of the spindle. I prefer to form near the upper part of the bolster-bearing an oil-retaining groove 17, to prevent oil in considerable quantities from passing over the top of the bolster 1 when the spindle is being used.

I have found that a spindle of the kind described runs very well indeedat the usual speedsat which such spindles are operated, and that it is perfectly practicable to remove the step-case for the purpose of cleansing it and removing the sediment which is intentionally allowed to settle therein below the lower end of the spindle, even when the spindle is in operation and spinning yarn.

I prefer to make the fit of the lower end of the bolster-bearing support 1 with the shoulder of the step-case with which it is usually in contact so perfect that the joint between them may easily be made impervious to oil by screwing up the step-case tightly, although a soft metallic or other suitable washer may sometimes be advantageously inserted at 2318 oint as an equivalent for such perfect The in uchdesired and so-called gyrating capacity of spindles is possessed by my invention to a considerable degree on account of the looseness of the fit of the spindle in the step and bolster bearings and of the freedom of the step to move laterally to a slight extent in all directions. When the step is supported by a longitudinally-elastic support, as herein described, the spindle runs with Very little jar indeed at the highest desirable speeds. The form of the lower end of the spindle insures that the bolster-bearing is properly lubricated when there is suflicicnt oil in the interior of the bolster, the oil being carried upward by the action upon it of centrifugal force. Another great advantage of the spindle as illustrated is the cheapness of its construction and the ease with which all its parts are reached for the purposes of examination and cleansing.

I do not desire to limit myself in the use of my invention inall cases to the particular forms of the various parts of the structure which are herein illustrated, since such forms of some of the parts may in some cases be much changed without departing from the invention.

WVhat I herein claim as new, and desire to secure by Letters Patent, is-

1. The combination of a step-case adapted to be attached to and detached from the base of a bolster-bearing support of a vertical spindle and forming when detached an oilcup of considerable size, with a step loosely fitting in a step-receiving recess within said step-case and with its axis maintained by the walls of said recess in substantial alignment with the axis of said step-case, said step being free to move laterally in all directions within said step-case, substantially as described, andfor the purposes specified.

2. The combination of a step-case adapted to be attached to and detached from the base of a bolster-bearing support of a vertical spindle and forming when detached an oilcup of considerable size, with a step loosely fitting in a step-receiving recess within said step-case, and with its axis maintained by the walls of said recess in substantial alignment with the axis of said step-case, said step being free to move laterally in all directions with respect to said step-case and being'supported therein by a longitudinally-elastic step-support, substantially as described, and for the purposes specified.

J AS. H. MOMULLAN.

Witnesses:

BENJ. N. GoonALE, WILLIAM P. MoMULLAN.

ITO

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