US615678A - Binding attachment for sewing-machines - Google Patents

Description

No. 6l5,678. Patented Dec. l3, I898. J. H. CLARK.

BINDING ATTACHMENT FOR SEWING MACHINES.

(Application filed-Feb. 8, 1894.)

(No Model.)

UNITED STATES JAMES H. CLARK, or CHICAGO,

PATENT rricE.

ILLINOIS, AS SIGNOR TO THE IVHEELER &

BlND-ING ATTACHMENT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 615,678, dated December 13,1898. Application filed February 8,1894. Serial No. 499,470. (No model.)

To aZZ whom it may concern.-

Be it known that I, JAMES H. CLARK, a citi zen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Binding Attachments for Sewing-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to that class of sewing-machine attachments employed for sewin g braid, tape, or bias binding upon the ends of suspenders, belts, and various other bandlike articles of woven or other fabric.

Among the primary objects of my invention is included that of producing an attachment which shall be capable of application to various types of sewing-machines and which shall enable such machines to take the braid, tape, or bias binding in continuous form from a reel and to feed it continuously to the needle during the operation of the sewing-machine and in case of bias binding to fold the raw edge of the binding under, so that when sewed onto the goods it has a smooth edge.

A further primary object of my invention is to produce an attachment of such character that at the beginning of the binding of an article the .edge of the braid, tape, or bias binding can be folded under, so that it does not show a .raw edge and is neat in appearance and also prevents it in use or Wear from fraying out, and which at the end of the work will again fold the binding under, so as to leave the finish of the binding smooth and neat.

A still further primary object of my invention is to produce an attachment which can be readily applied to. and detached from a sewing-machine and which shall be easy to manipulate, reliable in its operation, not liable to become disabled, and which will insure a neat finishing of the work to perfectly accord in appearance with the commencement of the same.

These objects and such others as may appear from the ensuing description are attained by the devices illustrated in the accompanying drawings, in which--- Figure 1 is a plan view of certain parts of a sewing-machine with a binding attachment embodying my invention applied thereto, the attachment being shown in the position which it occupies during the operation of the sewing-machine. Fig. 2 is a View similar to that of Fig. 1, but showing the attachment in the position to which it is moved at the completion of the operation of the sewing-machine. Fig. 3 is a Vertical section taken on the line 3 3 of Fig. 1. Fig. 4: is an outer side elevation of the folder. Fig. 5 is a side elevation of the attachment, the direction of view being toward the receiving end of the folder. Fig. 6 comprises a plan View of the folder extension and an inverted plan View of the pivotal carrier for the folder, said parts being detached from each other.

Binding attachments which embody my present invention are applicable to a great variety of styles or types of sewing-machines, and for this reason I have shown in the drawings only such parts of a sewing-machine as will indicate the general operative and idle positions of the attachment relative to the feed and needle, and it is to be understood that such parts are merely typical unless otherwise specified and form no essential elements of my invention.

In the said drawings, A designates the bedplate of a sewing-machine; B, the inner slide; 0, the outer slide, and D the needle or throat plate interposed between said slides. In Fig. 1 the inner slide is shown as opened partially, thus exposing its end recess 1) of the inner slide, the purpose of which recess will be hereinafter explained. E designates the presser-foot bar, F the presser-foot, and G the needle, all of these parts, excepting the presser-foot, being either of the forms shown or of any other suitable or desirable forms.

The attachment consists, stated in a general way, of a folder I, having a lateral extension J, a carrier-arm K, to whichthe extension of the folder is adjustably connected and which is pivotally and detachably connected to the bed-plate of .a sewing-machine. The folder I is constructed usually of thin but rigid sheet metal-such as sheet steel, iron, brass, or the likeand is of approximately triangular form in side elevation, as

is best shown in Fig. 4:, the wider end of the folderbeingits receiving end and the narrower end of said folder being its delivery end. The two opposite side edges 2' of the folder are bent over and twisted inward against the outer side of the folder each from a point near the delivery end of the folder to about midway of the receiving end thereof and in such manner as to leave two oppositely-disposed tubular channels between the curved side portions 2' and the body of the folder, the said channels converging toward each other from opposite points near the receiving end of the folder to opposite points near the delivery end thereof. At the receiving end of the folder is located a guide-plate I, which in its general form is also triangular, the wider end of .said guide being adjacent to the receiving,

end of the folder and said guide being located at the outer side of the folder-body. From opposite sides of the larger end of this guideplate I extend oppositely outward two lips i, which embrace the corresponding sides of the receiving end of the folder-body, so as to retain the guide-plate in connection with the folder, the lips 2" being either bent forcibly against said part-s of the folder or soldered or otherwise secured thereto, if necessary. The opposite end of this guide-plate is bifurcated longitudinally in such manner as to form a longitudinal slot or recess '5, extending about midway to the wider end of the plate, and the adjacent surfaces of the guide-plate and folder do not touch each other, a sufficient space intervening between said surfaces to permit the binding-tape to pass freely between the guide-plate and the folder-body, as hereinafter explained. I have thus quite minutely described the construction of the folder in order that the operation of the entire attachment may here become perfectly clear; but I desire it to be clearly understood that I do not confine myself to this precise form of folder, my invention contemplating any type of folder which will effectively double a braid or tape transversely, so that the tape shall properly embrace the edges to be bound and so that the edges of the tape shall be turned under, as hereinafter fully explained. In any event the folder is provided with an arm or extension such, for example, as is shown at J -for enabling the folder to be adjustably connected to a pivoted carrier, to be hereinafter described. As shown, the extension J is laterally enlarged at that end to which the folder is connected, so as to extend from the delivery end of the folder nearly to the receiving end thereof, and the folder may be soldered, riveted, or otherwise securely connected to the extension, or the two maybe formed integrally with each other, if preferred. The extension J is shown as formed on its upper side with a straight rib j, extending throughout the length of the extension midway between the sides thereof, and said extension is also shown as recessed segmentally, as at j, at that end which is re mote from the folder and also as provided with an internally-screwthreaded eye 3', placed about midway of the length of the extension and formed through both said extension and its rib, the purpose of the segmental recess in the extension being to enable the extension tofreely move without contact with hub or boss K.

The carrier K is shown as a metal arm having at one end a hub K protruding downward] y from its under side and provided also with a straight groove 7c, formed in the under side of the arm and extending from the hub K to the end of the arm which is remote from the boss. This arm or carrier K is also shown as formed intermediately of its ends with a slot or elongated opening is, the length of which coincides in its direction with the length of the arm or carrier.

The carrier K is detachably and pivotally secured to the sewing-machine by a pivotscrew L, the lower end portion l of which is shown as reduced in diameter and also as externally screw-threaded to enter an internally-screw-threaded socket m, formed in one of the two usual lugs M beneath the bed-plate A of a sewing-machine. The pivot-screw L extends vertically upward from the lugM and through the boss K of the carrier K, the upper end portion of the pivot-screw protruding upward beyond the upper surface of the carrier-arm K. As shownfthe pivot-screwis of plain cylindrical form throughout, excepting its lower end portion, and the upper extremity of the screw-stem is surrounded bya cap or sleeve N,which is shown as secured against turning upon the stem by a set-screw n,which is inserted radially into the sleeve and the inner end of which impinges against the stem. A spiral spring 0 surrounds the protruding part of the screw-stem L and has its upper end inserted into the cap or sleeve N and its lower end similarly inserted into a socket in the upper surface of the carrier-arm K, the point of attachment of the lower part of the spring being eccentric to the pivot-stem L. Obviously the cap or sleeve N may be connected in various ways to the pivot screwstem, so as to be incapable of turning independently thereof; and it is evident also that the upper and lower ends of the spring 0 may be connected in various ways to the cap-sleeve and carrier-arm. It is desirable that the capsleeve be detachable from the stem L, but it IIO is not absolutely essential that such be the case.

The extension J and the carrier-arm K are adj ustabl y connected together bya clam pingscrew J, the stem of which passes freely through the slot 7c of the carrier-arm and screws into the eyes j of the extension. The engagement of the rib J and also the pres ence of the slot it enables the extension J to be moved longitudinally of the carrierarm K toward and away from the boss K, so as to bring the delivery end of the folder into pre cisely the required operative position relative to the presser-foot F and needle G, the clam ing-screw J being tightened to preserve t e required position of adjustment.

In order to bring the folder into proper position relative to the presscr-foot of the machine, the boss K, as shown, extends downward into contact with the lug M, and to permit this positional relation of the parts the slide B is recessed at its outer end, as atb, so as to embrace the hub K. The spring 0 acts to swing the carrier K in such a direction as to move the folder I into position adjacent to the presser-foot and needle of the machine, and the extent of this movementis limited by a stop-such, for example, as d-protruding upward from the throat-plate D and which is engaged by the extension J. Obviously any suitable form of stop may be used, such stop being acted upon by any of the moving parts, according to the structural character and position of the stop.

The presser-foot F is shown as formed with a recess f, the margins of which are of L form, the recess thus opening toward the slide B and also toward the operator when the latter is in working position.

The operation of the above-described attachments is as follows: The braid, tape, or bias binding is inserted in the wide end of the folder and with the point of a pair of scissors or a like device inserted into the slot or recess I it is pulled through to the delivery end of the folder, and the plate or guide holding the braid, tape, or bias binding close to the folder, and in the case of bias binding allowing the raw edge of the binding to be turned over onto itself. The braid, tape, or bias binding is then folded over at right angles to itself and the work then inserted in the folder, and the operator then proceeds in the ordinary manner, guiding the work so as to keep the edgeof the work close to the folder, as is well known to those experienced in binding.

, When the end of the work is reached and while the needle is still in the work,the presserfoot is raised and the folder is pulled toward the operator with the right hand, and the binding is folded under the work at right angles to the line of feed. The presser-foot is then lowered, and three or four stitches are then taken with the folder in position as shown in Fig. 2. The work is then removed and trimmed in the ordinary manner.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is- I 1. A binding attachment for sewing-machines, comprising a folder and a folder-carrier, a pivot-stem passing freely therethrough and form ed for stationary but detachable connection to a sewing-machine, a cap rigidly connected to the pivot-stem, and a returning spring connected to said cap and folder-carrier, and acting to hold the folder in operative position, substantially as set forth.

2. A binding attachment for sewing-ma-. chines, comprising a folder having its forward edges bent over, and provided with an extension having a rib formed on its upper surface, in combination with a guide-plate provided with lips embracing the folder and with a longitudinal slot, a carrier-arm grooved to receive the rib of the folder extension, a pivotstem passing through the carrier=arm, a cap rigidly connected to the pivot-stem, and a spring connected to said cap and carrier-arm, and acting to hold the folder in operative position. v

' JAMES H. CLARK.

Witnesses:

JNo. L. Common,

-- M. E. SHIELDS.

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