US589690A - Bobbin holder or clamp - Google Patents

Description

(No Model.)

G. T. BOWMAN. BOBBIN HOLDER 0R CLAMP.

No. 589,690. Patented Sept. 7,1897.

WITNESSES I INVENTOH (1.6 .5 H m BY arm/awn l UNITED STATEs P TENT FFICE.

BOBBIN HOLDER OR CLAMP.

SPECIFICATION forming part of Letters Patent No. 589,690, dated September '7, 1897.

Application filed June 12,1894. Renewed May 4, 1897. Serial No. 635,077. (No model.)

To all 1071,0711, it HUI/Z] concern:

Be it known that I, GEORGE T. BOWMAN, a itizen of the United States, residing at Phi1adelphia, (Frankford,) in the county of Philadelphia and State of Pennsylvania, have i11- vented certain new and useful Improvements in Bobbin Holders or Clamps, of which the following is a specification.

My present invention relates to a holder or clamp for the bobbins of so-called horizontal bobbin-winders, although it is applicable in whole or in part to other types of such inachines.

The principal objects of my present invention are, first, to provide a simple, durable, efficient, reliable,and comparatively inexpensive device, holder, attachment, or clamp for not only preventing endwise play or wabblin g movements of the bobbin in respect to its spindle, whereby waste of yarn, thread, or other material is obviated and accuracy and uniformity of winding insured, but also permitting of the ready, convenient, and rapid removal and application of the bobbin to and from the spindle, and, second, to so construct, arrange, and combine the various parts of the clamp, device, or holder as that it may be conveniently applied to such bobbins and spindles as are commonly employed in mills and factories without requiring any addition to or alterations or changes in such standard spindles and bobbins.

In my invention use is made of a clamp or holder comprising a base held between the sections of a spindle and provided with springarms adapted to engage a bobbin mounted on the spindle.

The nature, characteristic features, and scope of my invention will be more fully understood from the followin g description ,taken in connection with the accompanying drawings, forming part hereof, and in which--= Figure 1 is an clevational view illustrating a bobbin clamp or holder embodying features of my invention in application to a spindle or bobbin. Fig. 2 is a perspective view illustrating the bobbin holder or clamp shown in Fig. 1, and Fig. 3 is a sectional view showing the parts detached. 7

In the drawings, D and (Z are the respective parts of a spindle, which are adapted for corn corresponding recesses in the base of the bobbin E in order to impart rotary motion from the spindle thereto.

f is an annular groove which is commonly cut or otherwise formed around the base of all bobbins for use in mounting them in shuttles, as will be readily understood by those skilled in the art to which my invention appertains.

Havingthus described and pointed out so many and such parts of a well-known and standard type of bobbin and spindle to which myinvention is applicable, I will now proceed to describe the latter and also the manner in which it is combined with the above-mentioned parts.

A is a clamp or holder comprising a base a, perforated, as shown in Fig. 2, for the accommodation of the portion 02' of the spindle. This base a is adapted to beheld between the parts (Z and D of the spindle and is provided with integral upwardly and inwardly extending spring-arms 13, adapted to engage the base of the bobbin E. For this purpose each of the arms B is provided with a shoulder b, stamped or otherwise formed thereon and adapted to take into the groove f of the bobbin E.

In use the part1) of the spindle is detached from the part cl thereof. The base a is mounted upon the part of of the spindle F by passing the threaded portion (1 through the aperture of the base a, whereupon the part D is secured to place, as shown in Fig. 1. Under these circumstances the clamp or holder A is firmly attached to the spindle in such manner that the shoulders I) of its arms B are adapted to take into the groove f of the bobbin E.

From the foregoing description it is obvious that my improved clamp or holder may be readily and rapidly applied to the spindle and bobbin by utilizing the ordinary features of construction thereof and without necessitating' any changes in or additions to either of these parts.-

The mode of operation of the hcreinabovedescribed device is as follows: For the sake of a further description of my invention it Will be assumed that the spindle d is rotated around a horizontal axis through the intervention of the pulley or wheel H in the ordinary and Well understood manner. The empty bobbin E may be readily applied to the portion F of the spindle by the simple op eration of pushing the bobbin onto the latter until the lugs on the part D enter their corresponding recesses and until the shoulders 17 take into the annular recess f. Under these circumstances the arms B hold the bobbin E firmly up against the vface of the spindle-head D, so that the bobbin E is not only held against movement in the direction of its length, but is also prevented from Wabbling at its free end in respect to its axis of rotation. The absence of endwise play and freedom from Wabbling movements is important for many reasons, among which the following may be mentioned; If the bobbin were afforded endwise playdt would become detached from the projections upon the spindle-head D and consequently Would cease to rotate. In fact it has hitherto been customary in starting the bobbin to manually Wind the thread or yarn not only onto the bobbin but also downward onto the spindle-head D in order to tie the bobbin to the spindle-head and thus prevent endwise playof the former. However, this resulted in the waste of considerable yarn or thread. Moreover, under such circumstances the free end of the bobi not limit myself to the precise construction and arrangement of parts hereinabove set forth and illustrated in the drawings; but,

Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is-

In combination a two-part spindle having its respective parts detachabl y connected and whereof one is internally threaded and where of the other is provided with a screw end adapted to engage the internallyscrew threaded portion of the firstmentioned part: and a clamp or holder comprising a base per- 'forated for the passage of said screw end and held between the respective parts of the spin die and having spring-arms carried by its base, substantially as and for the purposes set forth In testimony whereof I have hereunto signed my name Geo. 'r. BOWMAN.

lvitnesses:

GEORGE L. BATTERSBY, LEON M. II'UTHER.

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