US2527192A - Sewing machine guard and spool support - Google Patents

Description

011.24, 1950 G. MANGIARACINA 7,192

SEWING MACHINE GUARD AND-SPOOL SUPPORT Filed June 19, 1947 lNVENTOR. Gsoaaz MANGIAHACINA BY mvfikub ATTORNEY Patented Oct. 24, 1950 7 2,527,192 SEWING MACHINE GUARD AND SPOOL SUPPO George Mangiaracina, Bloomfield, N. J.

Application June 19, 1947, Serial No. 755,690

4 Claims.

This invention relates to new and useful improvements in guards for sewing machines.

The invention provides a self-contained device readily attachable to the table of a sewing machine, for protecting the operator from injury from the machine belt and adjacent parts of the machine at all times.

In pursuance of the invention, an attachment is provided which comprises essentially an e1on-' gate integral plate member to be extended across the machine table and secured thereto at right angles to the machine head and at the end of the table opposite the driving pulley for the mechanism of said head, so that, with the integral or unitary plate member comprising a bottom wall to rest flat on the machine table, and an upstanding vertical wall, said vertical wall is a protective barrier between any part of the body of the operator and said driving pulley and its belt. Said plate member carries at its end remote from the operator a yarn carrier.

A feature of the invention is the integral or unitary character of said plate member.

A further feature of the invention is a special mounting means for a readily attachable yarn carrier.

Among others, another feature of the invention is the provision of a simple and efiicient resiliently acting yarn-protecting cushioning means, which is readily variable to function best, in either of two situations; that is, with the yarn carrier cone for simultaneously supporting a pair of cone-reels of yarns or threads of diiferent colors or other wise diifering qualities, or even with each conereel for supplying a yarn or thread of the same kind, said resiliently acting means being readily variable to function best as the yarn is drawn first oif one cone-reel and then off the other for bobbin winding.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features ofthe' invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:

Fig. l is a top plan view of a sewing machine, with a preferred form of attachable device of the present invention secured in place thereon, but with, however, the cone-reel carrier removed.

Fig. 2 is a perspective view, on an enlarged scale, of the cone-reel carrier.

Fig. 3 is a view, also in perspective, showing a rearrangement of certain of the parts seen in Fig. 2, and with the reel carrier in a slightly raised position. ,I

Fig. 4 is a perspective view of the attaching bracket, per se.

Referring to the drawing. more in detail there is shown the sewing machine table I 0, the machine head II, the machine pulley I2 and the driving belt I4 for the latter.

The attachment is designated generally by the reference character [5.

This'comprises a single, unitary elongate plate member, L-shaped in cross section so as to com--- prise a bottom wall I6 and a side wall ll. At its end portion ill to be remote from the operator 7 when the attachment is arranged on the machine as inFig. l, the bottom wall I6 is at a somewhat: higher elevation, thus providing below said por tion I8, and. below the bottom of the side wall I! opposite the portion I8, a recess to adapt the attachment to fit a machine table of the familiar kind including a raised portion between the table; edge I9 and the head II of the machine.

Along the main length of bottom wall 16, forward of the raised portion I8, are a pair of slots 20, through which screws, bolts or the like may be sent, as indicated at 2| in Fig. l, to secure the attachment to the table I 0.

For the readily available storage of a plurality of bobbins to be served as required by the bobbin winding means of the machine, the vertical wall I! is shown as provided with a line of apertures 43, for receiving short rods (not shown) on which such bobbins are sleeved.

- Referring now to the cone reel carrier and its special mounting and operation-facilitating means, such carrier is marked generally 44. The carrier includes a dumb-bell shaped platform 45 having circles of lightening apertures surrounding each of two upstanding pins 46 and 41. As indicated in dot and dash in Fig. 2, two cone reels 48 and 49 of thread, each sleeved for unreeling on one of said pins, may be placed on the carrier. Also a conventional feature of such a cone reel carrier is a central upstanding handle rod 50.

In the present case, however, to adapt the cone reel carrier 44 for quick and secure mounting on and demounting from the plate member I 5, a rod portion 5| is provided, integral with or in line with the handle rod 5|], and depending a considerable distance below a special hub portion 52; integrally formed on the bottom face of the plat form 45.

- For easily receiving the rod portion 5| a fitmentv 53 is secured at 54 to the upper rear portion of vertical wall II; this fitment being a piece of sheet material bent to provide centrally a substantially. cylindrical receptor 55 for the rod portion 5I, merging into two parallel wings 56 for hugging the opposite sides of the vertical wall I I. Rivets 54pass through the parallel wings of the receptor 55 and the wall I I for mounting the receptor on the wall !I.

At about right angles to the direction of length of the platform 45, there is horizontally projected from hub portion 52 a pin member 58, here shown as a set screw. A set screw is preferred. because and retained in a set screw.

then the rod portion 5| and the handle rod 59 may-bea single length of rod slidably extended throughthe platform 45 and the hub portion 52 desired adjusted position by the A thin flexible spring steel plate 59 is secured at Ell to the vertical wall I'l; this plate being shaped to present a flexible tongue portion 6| of reduced width directed toward the carrier 44 and having its free end spaced slightly from the hub portion 52, so that when the carrier 44 is mounted by its rod portion in said receptor, with the bottom of hub portion 52 resting by gravity on the top of the receptor, one or another special operative relations may bet set up between the tongue portion GI and the pin member 58, with the pin member 58 disposed on either side of the free end of the fieXible tongue portion 6|.

The purpose of the flexible tongue portion Si is to provide a resiliently acting or cushioning means as a protector against breakage of a fragile yarn or thread, in bobbin winding, due to any abrupt pull shock on the yarn or thread during such winding.

Cone reels commonly are wound so that inunreeling the yarn or thread, the unreeling pull is one which urges the cone reel to turn in a clockwise direction, looking down on the top of the same, as indicated in dot and dash in Fig. 2 at 92 in connection with the cone reel 48 and at 63 in connection with the cone reel 69. If the bottom of that one of the two cone reels which is being used in bobbin winding catches on the top of the platform 45, as sometimes happens, the platform will have a tendency to rotate, in a counter-clockwise direction if the cone reel 48 is being used, or in a clockwise direction if the cone reel 49 is being used.

Therefore, if the cone reel 48 is being used, and the operator ascertains that the pin member 58 is on the adjacentside of the tongue portion BI, and if necessary the operator temporarily lifts the carrier i l to thus arrange the pin member, yarn or thread breakage will be minimized, due to the resilient or cushioning function of said tongue portion. Similarly, if the cone reel 49 is being used, and the operator makes sure that the pin member 51 is placed as in Fig. 2 relative to the tongue portion 6 l yarn or thread breakage in this case also will be minimized.

While I have illustrated and described the preferred embodiment of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

1. A guard for sewing machines, comprising an elongate plate member having a floor wall and a side wall, said walls being integral so that they form portions of a one-piece member, said side wall, at its end remote from the front of the sewing machine, carrying a vertically arranged substantially cylindrical receptor for a rod element, a removable cone reel carrier having a depending rod element adapted endwisely to enter said receptor to removably mount the carrier on the plate member, said carrier having a platform, means on the latter for rotatively mounting a pair of cone reels, and means partially carried by the carrier and partially carried by said plate member for resiliently cushioning an abrupt pull shock during bobbin winding on yarn being unreeled from a cone reel. 7

2. A guard for sewing machines, comprising an elongate plate member having a floor wall and a side wall, said walls being integral so that they form portions of a one-piece member, said side wall, at its end remote from the front of the sewing machine, carrying a vertically arranged substantially cylindrical receptor for a rod element, a removable cone reel carrier having a depending rod element adapted endwisely to enter said receptor to removably mount the carrier on the plate member, said carrier having a platform, means on the latter for rotatively mounting a pair of cone reels, and means partially carried bythe carrier and partially carried by said plate member for resiliently cushioning an abrupt pull shock during bobbin winding on yarn being unreeled from a cone reel, said means last-named comprising a hub portion on said carrier below its platform, a projection ofiset from said hub portion, and a resiliently yielding element on said side wall engageable by said projection.

3. A guard for sewing machines, comprising an elongate plate member having a floor wall and a side wall, said walls being integral so that they form portions of a one-piece member, said side wall, at its end remote from the front of the sewing machine, carrying a vertically arranged substantially cylindrical receptor for a rod element, a removable cone reel carrier having a depending rod element adapted endwisely to enter said receptor to removably mount the carrier on the plate member, said carrier having a platform, means on the latter for rotatively mounting a pair of cone reels, and means partially carried by the carrier and partially-carried by said plate member for resiliently cushioning an abrupt pull shock during bobbin winding on yarn being unreeled from a cone reel, said means lastnamed comprising a projection oifset from the carrier, and a spring tongue mounted on said side wall engageable by said projection.

4. A guard for sewing machines, comprising an elongate plate member having a floor wall and a side wall, said walls being integral so that they form portions of a one-piece member, said side wall, at its end remote from the front of the sewing machine, carrying a vertically arranged substantially cylindrical receptor for a rod element, a removable cone reel carrier having a depending rod element adapted endwisely to enter said receptor to removably mount the carrier on the plate member, said carrier having a platform, means on the latter for rotatively mounting a pair of cone reels, and means partially carried by the carrier and partially carried by said plate member for resiliently cushioning an abrupt pull shock during bobbin winding on yarn being unreeled from a cone reel, said means last-named comprising a projection oifset from the carrier, and a spring tongue mounted on said side wall engageable by said projection, said tongue lying in substantially a vertical plane, and said projection being so arranged on the carrier that it may be placed on one side or the other of said tongue.

GEORGE MANGIARACINA.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Numb-er Name Date 991,816 7 Ashman May 9, 1911 FOREIGN PATENTS Number Country Date 4,553 Great Britain Feb. 22, 1913 425,144 France Mar. 29, 1911

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