US976964A - Binding mechanism for sewing-machines. - Google Patents

Description

J. P. WEIS '& W. G. ROBBINS. BINDING MECHANISM FOR SEWING MACHINES.

APPLIUATION FILED MAY 29, 1.905.

Patehted Nov. 29, 1910.

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J. P. W-BIS & W. C. ROBBINS. BINDING MECHANISM FOR SEWING MACHINES.

APPLICATION FILED MAY 29, 1905.

976,964. Patented Nov. 29, 1910.

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UNITED STATES PATENT OFFICE.

JOHN P. WEIS AND WILLIS C. ROBBINS, OF NYACK, NEW YORK, ASSIGNORS TO IflETRO- POLITAN SEWING MACHINE COMPANY, OF NYACK, NEW YORK, A CORPORATION OF NEW YORK.

BINDING MECHANISM FOR SEWING-MACHINES.

To all whom it may. concern:

Be it known that we, JOHN P. iars and VViLLIs C. ROBBINS, both citizens of the United States, residing in Nyack, county of Rockland, andv State of New York, have invented a new and useful Improvement in Binding Mechanism for Sewing-Machines, of which the following is a description.

This invention relates to sewing machines and has particular reference to binding mechanism to be applied to, and to cooperate with, the stitch-forming mechanism of a sewing machine.

Among the objects of this invention, the following may be noted: To provide a machine by means of which a binding may be applied and stitched to the edge of work automatically and without any hand manipulation; to combine a stitching and a binding mechanism in such manner that the latter can be thrown into and out of operative position at the will of the operator; to provide a binding mechanism by means of which, at the end of a stitching operation, a predetermined or given length of binding may be measured off for the purpose of beginning a new operation or enabling the end of a given piece of work to be properly finished or tacked o-fi' to provide a binding mechanism which can be instantly lowered out of the way of the operator at any time at the will of the latter, so as to enable him to properly manipulate the work when occasion requires and whereby, with a simple movement of the hand, said binding mechanism can be instantly thrown into proper position for the continued operation of binding the work; to provide means.

whereby the binding mechanism can be adjusted relatively to the stitching and feeding mechanisms to accommodate various widths of binding and to properly apply the binding to the work; to provide a binding and feeding mechanism so constructed and relatively arranged that the actuating mechanism of the feeding device may be adjusted so as not to interfere with the binding when the latter is particularly wide; to provide a binding and feeding mechanism such that the binding can be accurately and properly applied to the edge of the work without disturbing the ordinary feeding devices in the machine; and to provide a binder of improved and simple form capable of handling various kinds of work and Specification of Letters Patent.

Application filed May 29, 1905.

Patented Nov. 29, 191.0.

Serial No. 262,810.

in connection with which the feed can operate so as to enable it to obtain a firm hold upon the binding to prevent the latter slippmg relatively to the work.

With the above objects in view, and others which will be hereinafter exposed, this invention consists in the parts, features and combinations of elements and mechanisms hereinafter described and claimed.

In the drawings forming part of this specification: Figure 1 is a front elevation of a chain-stitch sewing machine; showing the feeding mechanism applied thereto, but from which the binder has been omitted in order to clearly disclose the nature of the feeding mechanism, and the cloth-plate and portions of the feed-adjusting mechanism having been broken away for obvious reasons; Fig. 2 is a transverse vertical section of the front end of the machine taken just in rear of the prcsser-foot mechanism and from which the head of the machine has been omitted; Fig. 3 is an end elevation of that portion of the machine shown in Fig. 2, the cloth-plate being removed and a portion thereof being shown in section, this view showing two positions of the binding mechanism; Fig. 4 is an end elevation of the head of the machine, all partsbelow the clothplate being omitted and the view being intended to illustrate the presser-foot and upper feed mechanisms; Fig. 5 is a section taken on the line 55 of Fig. 4 and looking in the direction of the arrows; Fig. 6 is a top plan view on an enlarged scale, showing the presser-foot, top feed-foot, the holder for the latter and the actuating device for said feed-foot; Fig. 7 is a top plan view showing the throat-plate, slide-plate and binder-support in operative relation; Fig. 8 is atop plan of the binder support, the parts of said binder being shown separated, in order to give a clear idea of the construction thereof, and a portion of the bindersupport being broken away for obvious reasons; and Fig. 9 is an enlarged end elevation of the binder and its support, said figure being curtailed by omitting a part of the binder-support close to the body of the binder.

Primarily, it should be understood that the specific character of the stitch-forming mechanism is unimportant, but that the character of the feed mechanlsm 1s quite important considermg certain aspects of the invention; that is to say, for certain kinds of work, it is essential that a differential "another, in order to obtain either a stretched,

puckered or fulled appearance either on the edge, or in the body, of the work. Again, in applying bindings to the edge of work, it is often essential that the binding be fed either faster or'slower than the body-material, according to the texture or character of the latter, in order that the binding may be smoothly, uniformly and evenly applied to the edge of the work. And, again, it is essential, irrespective of the style of stitchforming mechanism, or of the character of the work, or of the style of feed mechanism, that the feed-dog, imposed upon the bottom of the binding for the purpose of traversing the latter consonantly with the work, be enabled to reach close to the mouth of the binder for engagement with the binding to insure the proper application of'the latter to the edge of the work. Hence, while many of the claims will be directed to the binder per 86, others of the claims will be directed I to the combination of the binding and feeding mechanism capable of performing the functions and producing the results hereinafter detailed.

Referring to the drawings, the numeral 1 indicates the frame of the machine, 2 the driving-shaft, 3 the needle-lever connected to and actuated by-the pitman 4, driven as usual by an eccentric on the shaft 2. The

' one end of which is shown in Fig. 4, and the other end of which is shown in Fig. 1, the same being supported as usual and the force of Which is regulated by the screw mechanism 14, said spring, at its forward end,-

Fig. 4,-bear1ng upon a pin or screw 15 connected to the presser-bar 8 in any approved manner. The lever 16 is pivoted to the head of the machine and cooperates with the pin or screw 17, for the purpose of lifting the presser-bar as usual. In the head of the machine a bar 18 is supported in parallelism with the presser-bar 8, said bar passing through extensions 19 of said machine head and being also guided at its top by the angular bracket 20 secured by screws 21 to the head of the machine. A spring 22 is coiled about the bar 18 and has one end in engagement with the top of the bracket 20 and the other end in engagement with a collar 23 adjustably secured by a screw 24 to the bar 18, the latter having also adjustably connected to it a collar 25, by means of the screw 26, this collar being set upon the bar 18, according to the vertical position desired for the top feed-foot and to secure the proper cooperation of the latter with the bottom feed of the machine. To prevent the bar 18, from turning in its bearings, said bar is provided with an elongated slot 27, indicated by dotted lines in Fig. 4, into which extends a pin 28 carried by a collar 29 secured to the resser-bar 8 by means of the screw 17. In this manner, the bar 18 is held from axial movement and yet allowed the necessary vertical movement for any adjustment desired relatively to the bar 8. At its lower end the bar 18 carries a holder 30, the same being clamped thereto in any desired manner, said holder being shown in detail in Fig. 5 and provided with a bifurcation or slot 31, through the walls of which a pivotal screw-pin 32 is entered, said pin, on its smooth shank portion, supporting the top feed-foot 33, the latter being capable of pivotal and longitudinal movement on said pin 32 and within the slot 31 for its feeding functions, said foot being provided, for the purpose, with an elongated slot indicated by the dotted lines 34 in Fig. 6. The feed-foot 33 operates within the slot 35 of the presserfoot and cooperates with the lower feed mechanism as presently described; and the side wall of the holder, in which is journaled the end of the pin 32, is increased in thickness to provide an extensive bearing, firmly support the pin 32, and afiord a substantial brace for the feed-foot 33.

The lower feed mechanism consists of the main feed-bar 36 carrying the feed-dog 37 at its forward end, said bar being journaled upon the shaft 38, carried in the top of the feed-rocker 39, journaled at 40 to the bed of the machine, said rocker being actuated by the pitman 41, the strap end of which surrounds the pin 42, adjustable diametrically of the disk 43 by means of the screw 44, said disk 43 being secured,see Fig. 1,to the front end of the driving-shaft 2, this mechanism giving the longitudinal reciprocation to the feed-bar. The vertical rise and fall of the feed-bar is imparted by the eccentric 45, engaging the bottom of the feed-bar, and an angular bracket 46 carried by the bottom of said bar, as shown in Fig. 3. The feed-bar carries an auxiliary bar 47, to which is connected, at its forward end, an auxiliary feed-dog 48, said bar sliding in or on the main feed-bar 36 and receiving movement independently of said bar by means a bracket of the bed-plate as at 52 and being actuated by a sliding-shoe 53, carried by the arm 54 of a three-armed lever fulcrumed to the shaft 38 of the feed-rocker 39. The spring 55, secured to the bed-plate at one end and connected to the arm 54 at the other, has a tendency to normally depress the said arm 54, but the position of the latter depends upon the adjustment of the stop-plate 56, connected to the arm 57 of the three-armed lever, said stop-plate having a pin 58 which engages the feed-rocker 39. The stop-plate 56 is secured to the arm 57 by means of the screw 59 passing through the slot 60 and tapped into said arm 57, and the head of which binds said plate to said arm in ad justed position. The in 61, projecting from arm 57, also operates 111 the slot 60, said pin acting as a stop to limit the movement of the plate 56 in one direction.

Viewing Fig. 2 it will be seen that the arm 57 has the angular extension 62 through which is tapped the adjusting'screw 63, the free end of which will contact with or stand separated from the feed-rocker 39, according to the movement of the three-armed leverproduced by power or means applied to the actuating arm 64. By this means the auxiliary bar and dog may be, durin the operation of the machine and at the W111 of the operator, given a throw greater or less than the main feed-bar and dog by the adjustment of the shoe carried by the arm 54 along the length of the lever 49. The feedbar 36, see Figs. 1 and 2, has secured to it, near its forward end, an angular bracket piece 65, said piece being secured to the bar by means of the screw 66. To the bracketpiece 65 is secured the angular arm 67, the horizontal portion of which is longitudinally slotted at 68 for the purpose of adjusting the said arm 67 lengthwise of the bracketpiece 65, the adjustment being held by the screws 69 passing through the slot 68 and tapped into the bracket-piece 65. The vertical portion of the arm 67 is provided with a laterally projecting pin 70 which passes into an aperture in the end of the top feedfoot 33, see Figs. 2, 3, 4 and 6. The adjustment of the arm 67, as described, is for the purpose of moving the same laterally away from the line of feed to enable varying widths of binding and work to be traversed to and from the stitch-forming mechanism without objectionable contact with the feed foot-actuating mechanism. The arrangement of the bracket-piece 65 on the feed-bar is for the purpose of properly locating the actuating arm 67 for engagement with the feed-foot 33 and also for the purpose of giving the proper inclination of said feedfoot in its action upon the work. Thus far, there has been described a differential feed ing mechanism and a cotiperating top feedfoot mechanism, these mechanisms being specially selected, constructed and adapted for coiiperation with the binding mechanism now to be described.

Viewing Figs. 2 and 3, it will be seen that an angular bracket 71 is secured to the bottom of the bed-plate by means of the screws 72 passing through the slot 73 in said bracket and tapped into the bed-plate. Pivoted to the bracket at 74 is the lever 75, the lower end of which is, formed into wedgeshape as shown at 76, which end, as shown in Fig. 3 by dotted lines, limits the outward movement or. pivotal swing of the lever 75 by contact of the inclined surface of said wedge-end with the bracket 71, as is clearly shown, the spring 77, secured to said lever by screw 78, having the normal tendency to hold the lever 75 in the position shown in Fig. 2 and in full lines in Fig. 3, said spring extending lengthwise of the lever 75 and having its end projecting through the bracket 71, as shown in Figs. 2 and 3. At its upper end the lever 75 has pivoted to it the binder-support or plate 79, the pivotal connection being secured by means of an angular bar or arm 80, adjustably secured to the plate 79 and pivotally connected at 81 to the lever 75. The plate 79 is provided with the curved depending portion 82 which affords a handle for manipulating the binding mechanism. To adjust the position of the lever 75 and also the position of the binderplate 79 relatively to the stitch-forming mechanism, the adjusting screw 83 is tapped through the lever 75 and engages the depending portion of the cloth-plate or a stopplate 84 secured thereto by means of the screw 85, said stop-plate having the horizontal portion 86, upon which the binder-plate 79 may rest, as shown by the dotted lines in Fig. 3. A jam-nut 87 holds the screw 83 in adjusted position.

Viewing Figs. 7, 8 and 9, it will be seen that the binder-plate 79 is quite extensive and is provided with the raised portion 88, formed by slotting the same as at 89, and slightly bending the tongue formed thereby, as clearly indicated in the several figures. In advance of the raised portion 88, the binder-plate is provided with the angular lug 90, and adjacent thereto with the openend feed-slot 91. At its rear end, the binder-plate is provided with the upturned flange 92, to which the bottom portion 93 of the binder-head, or binder proper, is secured by means of screws 94, or other suitable fastenings. The bottom portion of the binder-head 93 is provided with the back wall 95, carrying the spring 96, having the catch 97. The bottom portion of the binder-head is also provided with the curved front-plate 98, spaced from the forward end of the bottom portion of the binder-head, the two parts being made to substantially conform in curvature, in order to help produce the slot 99 for the reception and guidance of the binding. The form and shape of the curved front plate 98 may be clearly seen in Figs. 7 and 8. Removably secured to the bottom portion 93 of the binder-head is the top portion 100, the joint between the two being formed by giving the cooperating faces thereof the conformation indicated by the line101, this making aconnection similar to a dove-tail joint, and the portion 100 being retained in place by the back wall 95, and the catch 97 of the spring 96 entering one of the notches 102 in the back of the-upper portion 100; and said portion 100 is provided with the curved plate 103, which corresponds substantially in outline and curvature -to the front plate 98 and completes the groove 99 for guiding the binding. To the top of the portion 100 is secured the plate 104, by means of the screw 105, said plate being provided with the upturned, enlarged and broadened portion 106, which affords a handle forthe manipulation of the top portion 100 of the binder-head. By means of this handle 106, the top portion 100 can be slid upon the bottom portion 93 into and out of operative position, said two positions being held by the catch 97 cooperating with one 7 or the other of the notches-102;. and the top portion 100 can be wholly removed from the bottom portion 93, as shown in Fig. 8, by merely applying sufiicient force to overcome the'holdingcapacity of the catch 97. A

downwardly depending stop-107, is secured to the portion 100, the same being sufliciently extensive to engage the portion 93 to prevent the portion 100 from moving too fartforward when the parts are in cooperative relation, as shown in Figs. 7 and 9, said stop preventing the top portion of the binder-head from being forced beyond the catch 97 and out of proper position for cooperation with the feeding and stitch-forming mechanisms. If desired, small dowel pins 108 may also be employed to prevent the plate 104: from turning on the screw 105 as an axis.

Viewing Fig. 7, it will be seen that the slide-plate 109 is provided with a depression '110 in which the binder-plate 79 is set for the purpose of making thesurface of the latter substantially flush with the surface of the plate 109. Also, the throat-plate 111 is provided with a depression 112 at its forward end, with which cooperates the adjacent corner of the binder-plate 79, whereby the latter may be advanced close to the stitching point in order to place the nose of the binder in proper relation to thefeed mechanism and the line of stitch. The nose of the binderis given the usual form, that is to say, it is slabbed on one side and noseextending directly into the line of feed :and over the forward end of the main feedand the main feed-dog operating close to the nose of the binder 113 and, hence, being able to engage respectively the top and bottom of the binding close to the binder and immediately the binding leaves the latter turned upon or applied to the edge of the work. Thus, the feed-foot and main feed-dog take the binding directly from the binder and traverse it with the work positively up to and away from the stitching point, thus avoiding any possibility of the binding slipping upon the edge of the work and insuring the uniform application of said binding to the work.

In applying the binding mechanism just described to various types of machines, it will be obvious that only a few simple changes have to be made, such as the additionof a throat and slide plate of proper construction, and the provision of holes in the frame of the machine for securing the various parts in place; but, it may be necessary to properly position the binder-plate 79 relatively to the feed and stitching mechanisms to set the binder in proper place. Provision is made for this by rendering the binder-plate adjustable on its support 80, slots 116 in said plate having screws 117 passed therethrough which are tapped into said support, the heads of the screws tightly clamping the parts together.

The details of construction having been set forth, it is only necessary to refer generally to the operation of the machine, the cooperation of the several mechanisms and the juxtaposition of the several parts for the purposes of this invention. As will be understood, the feeding mechanism is of the four-motion variety and the actuation of the driving-shaft causes the said feeding mechanism and the stitch-forming mechanism toperform their usual functions; but, during the operation of the machine, the operator has under his control the operation of the auxiliary feed-bar and dog by manipulating the three-armed lever, thus enabling various effects to be produced upon the edge of the work or in the body thereof accordingly as the said auxiliary dog is caused to feed faster or slower relatively to the main dog.

The top feed-foot being actuated by the main feed-bar 36, as described, is given the same movements for feeding purposes as the primary feeddog', the latter and said foot, in consequence, operating upon opposite sides of the work and feeding the parts thereof together accurately. and uniformly. Thebinding-material having been entered in the slot 99 of the binder-head, the same is drawn through and turned at a right-angle to said binder-head into the line of feed, which places the same in position to be engaged by the feed-foot and primary feed-dog on opposite sides, and also causes said binding to be laid over the edge of the work. Immediately the machine is started, the feed-foot and primary feed dog take hold of the binding-material and feed the same forward uniformly with the work, and the latter, by the raised portion 88 of the binder-plate 79, is lifted into the proper plane for easy passage through the nose of the binder. If, for any purpose, it is desired to withdraw the binder from operative position, the operator has simply to take hold of the depending front edge 82 of the binder-plate 79 and draw the same into the position shown by dotted lines in Fig. 3, thus increasing the tension on the spring 77 and enabling the binder-plate 79 to swing upon its pivot at 81 by the weight of the binder-head at its forward end, thus causing said plate to assume the dotted line position of Fig. 3, whereupon the force of the spring 77 will hold the binder-plate and binder firmly against the front web of the cloth-plate upon the rest 86. Desiring the binder again in operative position, the operator has simply to tap the handle-end of the binder-plate 7 9, whereupon the binder-end of said plate will be lifted above the edge and surface of the cloth-plate and the spring 77 will force the lever forward into the full-line position of Figs. 2 and 3, and the weight of the binder will cause the binder-plate 7 9 to drop into operative position with the parts ready to perform their usual functions.

The operation just described would ordi narily take place at the end of a given stitching operation which would result in drawin g the binding through the binder-head, thus measuring off a certain length of bindingmaterial which may be cut at the desired point, leaving a portion projecting from the nose of the binder and a portion hanging from the end of the work, thus avoiding the necessity of again threading the binding through the binder and thus also enabling the operator to tack or finish off the end of the work. If, for any reason, it is desired to inspect the work without bodily pulling the binder away from the stitching position, as just described, the top portion 100 of the binder-head may be slid upon the lower portion 93 of the binder-head and retracted laterally from the line of feed until the springcatch 96 enters the forward one of the two notches 102. This manipulation will withdraw the binding from the line of feed and enable the operator to inspect the work close to the stitching point and also close to the forward end of the feed-devices. By mounting the feed-foot independently of the ordinary presser-foot, said feed-foot is enabled to properly bear upon and traverse the work without disturbance from the movements given to the presser-foot during the operation of the machine; that is to say, the presser-foot, as is usual, cooperates with portions of the lower feeding mechanism and the rise and fall of the latter occasion a vertical vibration of the presser-foot. This action of the resser-foot, if the feed-foot were carried by the latter, would cause the same to momentarily lose its grip upon the work and consequently its effective action and operation; but, by mounting the feed-foot so as to operate independently of the presserfoot, as by the mechanism described,the vibrations of the presser-foot have no effect upon the feed-foot and the latter is in consequence enabled to accurately and effectively perform all its functions. Moreover, the power of the spring 13, for holding the work properly upon the cloth-plate, might be too great for the proper manipulation of the work by the feed-foot if the latter were carried by said presser-foot; but, by depressing the feed-foot into contact with the work, by means of the independent bar 18 and adjustable spring 22, the requisite amount of pressure of the feed-foot can be brought to bear upon the work according to the thickness or character of the latter and accordingly as it may be found necessary to enable the feed-foot to properly perform its functions in cooperation with the binding mechanism in effectively traversing-the binding-material with the work, for a uniform application to the latter of said binding. This is an important feature of the invention and too much stress cannot be laid thereon.

Having thus described the construction and operation of the invention, the following may be set forth as among the advantages thereof: Various effects can be secured by the combination of the difierential feeding mechanism with the binding mechanism, as has already been stated; the combination of the feed-foot, independently supported, with the under feeding mechanism and with the resser-foot, enables the pressure of the feed-foot upon the work to be regulated, enables the said feed-foot to perform its functions without modification or interference by the operation of the presser-foot, and enables said feed-foot to properly cooperate with the primary feed-dog, in effecting the progress of the work to and from the stitch-forming mechanism; by the actuating mechanism described, for giving to the feed-foot its necessary movements, various widths of binding can be applied to the edge of work without interference with the actuating mechanism or parts of the feeding mechanism; by giving to the throat-plate and iderp ate thest uct-ure esc ed, t

'binder can be set or adjusted close to the feeding mechanism and, in fact, over a portion thereof in such manner as to enable said feeding mechanism to properly engage the binding and effectively traverse the same in conjunction with the work to and from 'the stitch-forming mechanism; by actuating the feed-foot directly from the primary feed-bar, said foot'and the primary feeddog are caused to have their feeding movements in unison and to the same extent, and arecaused to engage the work on opposite latter from slipping out of the binder-head; by providing means head or a portion thereof may be withdrawn from the feeding and stitching line, Withwhereby the binderout affecting or disturbing the rest. of the binding nechanism, the operator is enabled to view the work and correct any fault or difiiculties therewith which may occur in 'the operation of the machine; and by rendering the connecting means between the 1 primary feed-bar and the feed-foot adjustable asfdescribed, means are provided for adapting the top feed mechanism to practically any sewing machine having a fourmotion .feed. Various other advantages will appear to one skilled in the art, as well as those which have been incidentally. mentioned during the course of the description of ,the mechanical features.

Having thus described our :invention, whatwe claim and desire to secure by Letters Patent is In combination with the stitch-forming mechanism of a sewing machine, a binding device, a plate supporting said device, a levergpivotally supported at, the front of the machine and extending perpendicularly to the work-plate thereof, means for normally pressing said lever inthe direction of the said stitch-forming mechanism, and means pivotally connecting said lever to thesaid supporting plate, whereby by shifting said lever the binding device can be removed from its operative position andheld in engagement with a stationary part of the machine and returned to, operative position by turning the supporting plate on its pivot.

2. In-combination with a sewing machine,

lagflever pivotally. attached thereto, a binder- ,h'ead, pivotally attached tosaid lever, means 'fornormally holding the binder-head in operas erati-ve position under tension, said means including devices whereby the binder-head may be moved from operative position under a tension normally and constantly tending to return the same to operative position.

3. A sewing machine having in combination a stitch-forming mechanism, a feeding mechanism, a throat-plate provided with slots through which certain portions of the feed ing mechanism operate, a binding mechanism including a binder-support having an open-end slot cooperating with one of the slots of the throat-plate, whereby a portion of the feeding mechanism may operate in the slot of the binder-support, and a binderhead carried by said support and operating over said slot and feeding portion.

at. In combination, stitch-forming mechanism and binding mechanism, the binding mechanism including a binder-head, a support for said head, an arm pivoted below the work-plate and carrying said support, and means for adjusting said support laterally on said arm relatively to the stitching point, whereby different sizes of binders may be accommodated and the binder-head adjusted relatively to the stitching point.

5. In combination, stitch-forming mechanism, feeding mechanism, and binding mechanism, the binding mechanism including a binder-head, and the feeding mechanism including a feed-dog having a portion extending under said head at one side of the stitching position, and means for adjusting said head relatively to said dog and the stitching point, whereby the binding is engaged by the said dog as it emerges from the binder.

6. In combination with a a binding mechanism pivotally supported on said machine, said mechanism including a lever, an arm pivotally connected thereto, a support mounted on the arm, a binder carried by said support, and means whereby, upon swinging the lever from normal position, the binder will swing into horizontal position and be retracted to a place of rest out of operative position.

7. A binding attachment for sewing machines, including a supporting bracket, a spring-controlled part secured thereto, a binder-plate pivotally secured to said part, and a binder-head secured to said plate.

8. A binding attachment for sewing machines comprising a supporting bracket, a binder-plate pivotally supported on the bracket, a two-part binder-head secured to the plate, and means whereby one part of said head may be adjusted on and lon itudinally of the other, whereby the movable part may be retracted from operative position at sewing machine,

will.

9. A binding attachment for sewing machines including a binder-head composed of two parts, means whereby one part may be adjusted upon and longitudinally of the other and of the binding and a spring-catch for holding said part in adjusted position.

10. A binding attachment for sewing machines including a supporting bracket, a lever pivoted thereto, means for limiting the movement of the lever relatively to the bracket, a binder-plate secured to the lever, a binder-head secured to the plate for guiding binding material, and means on the. plate for elevating the main piece of work so as to cause the latter to properly pass through the binder-head into cooperation with the binding material.

In testimony whereof we have hereunto signed our names in the presence of two subscribing witnesses.

JOHN P. WEIS. WILLIS C. ROBBINS. Witnesses:

LOUIS KRUG, F. D. SHEEKEY.

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