US2036035A - Spool holder for sewing machines - Google Patents

Description

March m11936- G. G. GIALLANZA SPOOL HOLDER FOR SEWING MACHINES Filed Nov. 19, 1934 EL,... .2.. h/`

Patented Mar. 31, 1936 UNITED STATES PATENT OFFICE 3 Claims.

My invention relates-to means for holding the spools of thread on the arm of a sewing machine in a horizontal manner so that the thread will be unwound there-from in a direct manner toward the head, namely in a horizontal direction to thereby eliminate the difficulties and possibilities of frictional contact between the Various turns or windings of the thread on the spool and with the heads or ends of the spool proper.

The invention also has for its object the provision of a device whereby the spool will be held against improper shifting and dissociation with the device, while at the same time permitting easy removal of the spool when occasion arises.

The invention also contemplates a device whereby the spool may be held upwardly at an inclination when desired as for example when the thread on the spool is intended to be wound on the bobbin of the machine and hence the direction of travel or feed of the thread is altered from its usual course through a guide on the head down to the needle of the machine; the invention in its speciiic embodiment contemplating means whereby the position of the spool holding element or pin will be yieldingly held in its adjusted positions.

The objects and advantages of my invention will all be readily comprehended from the following detailed description of the accompanying drawing, wherein:

Figure 1 is a side elevation of a portion of a sewing machine arm provided with my improved holder shown in end elevation.

Figure 2 is a top plan view thereof.

Figure 3 is a sectional elevation taken substantially on the line 3 3 of Figure 1 as Viewed by the arrows; an adjusted position of the spool holding element being indicated in dotted lines.

Figure 4 is a sectional end elevation taken substantially on the line 4 4 of Figure 3 and somewhat enlarged.

Figure 5 illustrates my improved holder in elevation, unattached, and with portions in section and broken away and the spool omitted.

Figure 6 is a detail sectional view taken on the line 6 6 of Figure 3.

As previously stated, my improved spool holder is especially intended for use on domestic sewing machines and is intended to be placed on the arm of the sewing machine and to take the place of the usual vertically disposed spool holding spindle; a portion of the arm of the machine being shown at I5. The arm I5 is provided with a tapped hole in which the spindle is screwed or secured. This tapped hole receives the threaded stud I 6 of my improved holder, which in the particular exempliiication comprises the base or bracket portion I'I, the two ends I8 and I9 whereof are preferably of equal length and disposed upwardly in parallel relation. In order that there may be no sharp or thread cutting surfaces, I have shown my improved holder made of metal stock round in crosssection; although it is apparent that any suitable material may be used and the material have other desirable cross-sectional conguration.

The upstanding end I8 is provided with a longitudinally disposed socket 20 in which a suitable coil spring 2I and a follower block or plate 22 are mounted; the block or plate 22 being arranged at the upper end of the spring which exerts an upward pressure on the plate or block 22. The upper end of the arm or end I8 is bifurcated or slotted to receive the attened or rectangular end 23 of the spool holding spindle 24 therebetween, as more clearly shown in Figd ure 4. The spindle 24 is pivotally held in the slot by means of pin 25 which allows the spindle to be readily swung vertically for insertion of the thread holding spool indicated at A.

With the pivoted end of the spool holding spindle 24 made angular so as to provide the flat surfaces, the action of the spring 2l and its follower block or plate 22 is made more eiective; a constant upward pressure being exerted by plate 22 against the pivoted end which tends to hold the spindle 24 in its adjusted positions as shown in Figure 3.

The opposite arm or end I9 of the bracket is also slotted at its upper end as shown at 26 in Figure 6; and this slot is intended to receive the free end of the spool holding spindle 24; the spindle being atted or reduced in diameter as shown at 2'I in Figure 6 so as to frictionally t into the slot 26; while the end of the spindle is preferably extended slightly beyond this flattened portion 21 to provide the finger grasping portion 28, see Figure 3.

The spindle 24 is, of course, round in crosssection as shown in Figure 5 and is, preferably, of a diameter approximating the usual sized bore of the spool so as to prevent the too free rotation of the spool.

My improved holder is intended to be disposed transversely of the arm of the machine so as to also hold the spool in the transverse manner shown in Figure 2, thus causing the thread a to unwind in a horizontal manner from one end of the spool to the other, as is clearly apparent from Figures l and 2, without placing the thread un- With my device the spool is held immediately above the arm of the machine and hence practically in alignment with the usual guide arranged at the top of the head of the machine.

Upon taking hold of i'lngervgrasping end 28, the spindle 24 maybe readily swung upwardly as indicated in dotted lines in Figure 3. The up'- ward pressure of spring 2| will maintain the spindle 24 in its raised position and enable the operator to readily slip the spool A onto the spindle, at which time the spindle with the spool may then be lowered into the horizontal position shown and the possibility of any vertical play prevented by the action of the spring and its follower plate or block.

It is also apparent that when it is desired to wind the thread on a bobbin (which is then usually mounted at thebase of the arm), the spindle 24 may be left in' elevated or vertical position where the spool will be held in closer proximity to the side of the bobbin mounting, thereby providing a more direct path for the thread; the spindle and spool being then lowered when the bobbin has been completely wound with thread.

The advantages of my improved holder over the usual vertical pin method of spool holding will be readily apparent and while the invention has been illustrated in what is thought to be its simplest embodiment, the invention may have expression in somewhat different form and description without, however, departing from the spirit of my invention.

What I claim is:-

1. A spool holder for sewing machines comprising, in combination with the arm of a sewing machine, a substantially U-shaped bracket provided with a depending post intermediate of its ends adapted to be secured to the arm of the machine so as to hold the bracket horizontally and transversely of the arm, with the ends extending upwardly, the upper parts of the upstanding ends being bifurcated; a spool holding spindle the ends whereof are adapted to t between the bifurcations of said upstanding ends, with one end of the spindle pivotally held in place to swing vertically; and means whereby the pivotal end of the spindle is placed under yielding pressure and the spindle held in its adjusted positions. v

2. A spool holder for sewing machines comprising, in combination with the arm of a sewing machine, a substantially U-shaped bracket provided with a depending post adapted to be secured to the arm of the machine so as to hold the bracket horizontally and transversely of the machine arm with its ends extending upwardly and bifurcated, one of said ends beneath the bifurcation having a socket; a spool holding spindle with its ends mounted between the bifurcations of both upstanding ends of the bracket, one of the spindle-ends being pivotally secured in place so as to swing vertically; and a spring in said socket adapted to exert an upward pressure against the pivoted end of the spool holding spindle.

3. A spool holder for sewing machines comprising a substantially U-shaped bracket provided with a depending post adapted to be secured to the arm of a sewing machine so as to hold the bracket horizontally and transversely cn top of the arm, the ends of the bracket extending upwardly and being bifurcated, one of said ends having a vertical socket; a spool holding spindle whose ends are mounted between thev bifurcations of both bracket-ends and one end of the spindle being pivotally secured in place se as to swing vertically, while the other end extends beyond the adjacent bracket-end to provide a finger-grasping end; and a coil spring in said socket arranged to exert upward pressure against the pivoted end of the spindle in direct alignment with the pivotal point.

GIUSEPPE G. GIALLANZA.

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