US 668481 A
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N0. 668,48l. Patented Feb. l9, IQiDI. C. H. BENOIT. HAND SEWING MACHINE.
(Application filed Apr. 14, 1900.)
2 Sheets-Sheet (No Model.)
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CHARLES H. BENOIT, OF SAN JOSE, CALIFORNIA.
HAND SEWING iVlACHlNE.
SPECIFICATION forming part of Letters Patent No. 668,481, dated February 19, 1901.
Serial No. 12,863. (No model.)
To all whom it may concern:
Be it known that 1, CHARLES H. BENOIT, a citizen of the United States, residing at San Jose, in the county of Santa Clara and State of California, have invented a new and useful Hand Sewing-Machine, of which the following is a specification.
This invention relates to certain new and useful improvements in hand sewingmachines of that character applied to a device similar to shears whereby the opening and shutting of the shears performs the functions of sewing; and the aim and purpose of the present device is to provide a simple and efficient machine of this character which is easily applied to the work and particularly adapted for sewing parts of shoes, and especially in securing patches to the latter.
The invention consists of the construction and arrangement of the several parts, which will be more fully hereinafter described and claimed.
In the drawings, Figure 1 is a side elevation of a hand sewing-machine embodying the features of the invention. Fig. 2 is a top plan view of the improved device with parts disconnected and shown in section. Fig. 3 is an enlarged view of a portion of the ueedle bar, showing mechanism in connection therewith in section. Fig. 4: is a top plan view of a portion of the lower arm and the work-plate. Fig. 5 is a detail plan view of a slotted guide for a portion of the mechanism. Fig. 6 is an enlarged detail side elevation of parts of the arms and the operatinglink.
Similar numerals of reference are employed to indicate corresponding parts in the several Views.
The numerals 1 and 2 designate arms which are pivotally connected at their point of crossing, as at 3, and are respectively supplied with handles 4 and 5, continuous therewith and terminating in grips 6 and 7. The arm 1 is disposed over the arm 2 and supports and materially assists'in the operation of the needlebar and the presser-foot in a manner which will be presently set forth, and the arm 2 car ries the shuttle mechanism and the work-plate thereover.
Beside the arm 1, which is immovably fixed on the screw or fulcrum 3, and extending from the said pivot-screw or fulcrum 3 is a supplemental arm 8, which has its upper edge elevated above that of the arm 1 and its outer terminal laterally deflected, as at 9, and provided with an upstanding sleeve having a lower shoulder 10" to serve as a guide for the needle-bar 11 and fulcrum-support for other parts. The supplemental arm 8 also has a tension device 12 secured thereto, and rising therefrom, in rear of the tension device, is a spool-post 13, which in the present instance has its upper terminal screw-threaded to adjustably receive a holding-nut 14. Loosely mounted on the sleeve 10, above the shoulder, is a circumferentiallygrooved collar 15, having horizontal flanges, between which loosely works the forward yoked end 16 of a presser-bar-actuating arm 17, fulcrumed, as at 18, on one side of the said supplemental arm 8 and having the rear extremity 19 projected over the upper edge of the handle 5 and having a headed stud 2O projecting from the edge near the rear end and over the said handle. The actuating-arm 17 is shaped in a longitudinal direction in such manner as to attain the best results in the operation, which will be more fully hereinafter set forth. The arm 8 also has a downwardly and forwardly extending hanger 8, with a horizontal guidering 8 at its lower extremity, through which the needle-bar 11 also moves, and is thereby steadied in its operation.
Depending from the outer portion of the collar is a hanger 21, to the lower extremity of which is pivoted a presser-bar 22, having on its lower end a presser-foot 23 and an upper thumb-gripping lug or engaging projection 2 for adjusting the said presser-bar. The presser-bar also has a guide-bar 25 secured thereto, which movably projects upwardly through a semicircular slot 26 (see Fig. 5) in a disk 27, fixed on the upper end of the needle-bar 11, the rear portion of the disk having a thread-eye 28 therein. The upper extremity of the guide-bar 25 is above the plane of the disk 27 and adjustably connected to the upper extremity of the presserbar by a screw 29, whereby the projection ofthe presser-foot 23 over the work-plate may be regulated and the bearing on the work controlled in a manner best adapted for holding the same in position and to compensate for variation in difierent kinds of work. The
collar 15 is free to turn on the sleeve 10, as before indicated, and through the medium of the slot 26 in the disk 27 the presser-bar can be turned either to the right or left to throw the presser-foot 22 on or off the work-plate to accommodate a disposal of the work on said plate and the after desirable operative position of the presser-foot in relation to said work. This adjustment of.the presser-bar is effected by gripping or catching hold of the lug or projection 24, and it will be observed that the needle-bar is free to move independently ot' the movements of the presserbar.
The outer extremity of the arm 1 is formed with a short longitudinal slot 30, through which extends the shank of a headed stud 31, secured to the needle-bar,to accommodate the accurate movement of the arm and effectually actuate the needle-bar without causing the same to bind on any part of the boss 10 and to be guided in a true vertical line relatively to the needle-hole in the work-plate below. The supplemental arm 8 does not move with the arm 1 and, in fact, exclusively serves the function of a support for the parts attached thereto and as a guide for the needle-bar.
The arm 2 has its outer extremity formed with a pocket 31 to receive a rotary shuttlecarrier 32, mounted on a bearing-post 33 and having an eccentrically-positioned wrist-pin or analogous device 34. Over the top of the pocket 31 a Work-plate 35 is shiftably mounted and comprises an outer work-contacting portion 32 having a needle-hole 33 therethrough and normally in alinement with the loop-forming devices below for the purpose of effectively producing a lock-stitch. The said work-plate is fulcrumed, as at 36, and is continued into a rearWardly-projecting laterally-deflected operating-finger 37, which has an inner terminal biting-lip 38 to frictionally bear on the upper edge of the arm 2 to hold the work-plate in its adjusted position. The greater portion of the work-plate has a side flange 39; but the rear extremity of the finger 37 is without the flange and located over a curved recess 40 in the upper edge of the arm 2 to permit the operator to easily insert his finger under the finger 37 in adjusting the workplate. The pocket 31 is slightly to one side of the longitudinal median line of the arm 2 in order to bring the shuttle mechanism in alinement under the needle-bar in view of the fact that the two arms 1 and 2 cross at their pivotal point and to compensate for the difference in the plane of said arms arising from such disposition. The supplemental arm 8 has its outer end deflected for a substantially similar reason or because it is on the outer side of thearm 1.
5 contribute to the actuation of the link, though it will be observed that the greater portion of the actuation thereof will be caused by the movement of the handle 5. The link 41 depends below the lower edge of the handle 4 and has a connecting-rod 44 movably attached thereto and also to the wrist-pin 34 of the rotary shuttle-carrier 32, the said connecting-rod working through an opening in the rear portion of the pocket 3?. The link 41 has its upper extremity normally above the plane of the upper edge of the handle 5 and is enlarged to accommodate the direction and extent of a cam-slot 45, formed therein, having a portion 46 arranged as a seat, which is occupied by the stud 20 when the parts are in normal position, as shown by Fig. 1. Extending downwardly from the seat 46 is a curved wall 47 of concave contour, andin advance of the seat is a convex projecting wall 48, communicating with a regularly-curved substantially semicircular wall 49.
On the upper edge of the handle 5 a flat spring 50 has its rear terminal secured and projects forwardly and upwa'rdly under and contacts with the presser-bar-actuating lever 17. The thread 51 from the spool on the post is caused to engage the tension 12 and then pass through an eye 52 on the forward upper portion of the supplemental lever 8, and from said eye the thread passes upwardly through the thread-eye 28 in the disk 27 and over an adjacent portion of the latter downwardly through an eye in the ring 8 of the arm 8 and then to the needle-bar and needle, as clearly shown. The movement of the arm 1 causes the thread to feed properly from the tension 12 by the actuation in consequence of the said movement of the arm of the needlebar and the disk 27.
The operation of the device thus far described is as follows: After the work has been properly disposed between the work-plate 35 and the presser-foot 23 the handles 4 and 5 are drawn together in the direction of the arrows, and the respective arms 1 and 2, continuous with the said handles, naturally move in the opposite direction, but toward each other. When the handle 5 moves toward the handle 4, the link 14 is drawn downwardly therewith in the arc of a circle and swings on the fulcrum 45*, which is a pivot-screw connecting the said link to the handle 5. By the said movement of the handles the actuatingarm 17 is drawn downwardly at the rear through the medium of the stud 20 and the presser-bar raised by the upward movement of the collar 15, which elevates with the ascent of the outer extremity ofthe said actuating-arm. The said actuation of the arm 17 is againstthe resistance of the spring 50, and the cam-slot 45, with its seat 46, facilitates the operation of the said arm 17 by first causing the rear portion of the arm to descend by reason of the engagement of the stud 20 with the said seat until a certain IIO point in the are of movement is reached or the convex portion 48 of the wall of the slot will clear the stud, and which will take place at about the end of the stroke or limit movement of the handles 4 and 5 and at a time when the needle carried by the needle-bar 11 will have descended far enough into the pocket 31 for the formation of the loop and completion of the lock-stitch. After such penetration of the needleinto the pocket the stud 20 will stand in a relation to the camslot 45 so as to free the arm 17 and permit the spring 50 to return to its normal position and perform its function of throwing the rear extremity 19 of the said arm upwardly and the front extremity downwardly and at the same time draw upwardly on the handle 5, and consequently move the handle 4 to its normal position and dispose all the parts for the formation of a subsequent stitch. A forward-and-backward feeding motion is given to the foot 23 by means of the pivoted adjustable guide-bar 25 inclined to the path of movement of the slot 26 in the disk 27 attached to the needle-bar, and an upward-anddown ward movement is imparted to said foot by the arm 17 engaging the collar 15 at its outer end and actuated to have a raising-andlowering movement by the rear terminal thereof, and having the headed stud 20located in the slot 4:5, constructed as set forth, in the upper end of the link 41. By such movement and in view of the features of the construction set forth the presser-foot 23 Will be given a slight riding or feed movement, and, furthermore,the connecting-rod 44: will be shoved forwardly to the upper limit of the slot 43 over the stud 42, the said forward movement of the counectingrod not taking place, however, until the stud contacts with the upper end wall of the slot 43 and continues through the full downward stroke or movement together of the two handles and which will be effected at the time when the needle is in position for producing the lock-stitch or relatively coacting with the shuttle mechanism for this purpose.
Successive operations can be effectively pursued in a rapid manner similar to that just described and dependent upon the rapidity of movement of the handles 4 and 5 by the operator, and it will be observed that the arm 2 is of such substantial reduced structure that it can be easily inserted within a small iuclosure--such, for example, as a shoe and the entire device thereby con veniently adapt ed for sewing different parts of shoes, as Well as applying patches thereto.
Of course the machine is also applicable for other uses and is subject to a Wide range of modification within the purview of the invention.
Having th us described the invention, what is claimed as new is- 1. In a hand sewing-machine of the character set forth, the combination of movable arms, one of which carries stitch forming mechanism at the outer extremity thereof, a
needle-bar actuated by the other arm, asupplemental arm having a sleeve for the needlebar, a presser-foot movable independently of the need le-bar, a collar carried by the sleeve of the supplemental arm, a presserbar-actuating arm engaging said collar, and a guidebar connected to the presser-bar and also engaging said collar for actuating the presserfoot by the operation of the said arms carry-' ing the stitch-forming mechanism and for actuating the needle-bar.
2. In a hand se'wingmachine of the character set forth, the combination of oppositelydisposed arms pivotally connected and having rear operating-handles, one arm being operatively attached to the needle-bar and the other carrying complementary stitchforming mechanism for said needle-bar, a spring-actuated presser-bar-operating arm, a pivoted adjustable guide-bar connected to the presser-bar and in loose engagement with the needle-bar, and a link pivotally attached to one handle and slidingly and loosely connected to the other and located in rear of the pivot for said handles, said link operating the arm controlling the presser-bar and also connected to the complementary stitch-forming mechanism.
3. In a hand sewing-machine of the character set forth, the combination of a needlebar, a slidable member thereon, a presser-bar movably connected to said slidable member, a pivoted adjustable guide-bar connected to the presser-bar and in loose engagement with the needle-bar, and means for operating the several parts.
4. In a hand sewing-machine of the character set forth, a needle-bar, a presser-bar pivotally connected to said needle-bar, a horizontally-disposed slotted disk on the needlebar, a guide-bar adj ustably attached to the presser-bar and movable upwardly through and around in the slotted disk, the said presser-bar having a presser-foot, and means for operating the several parts.
5. In a hand sewing-machine of the character set forth, the combination of pivoted arms having operating-handles, a supplemental arm adjacent to the upper pivoted arm and having a spring bearing against the rear portion thereof, a vertically-movable needlebar having bearing in and through the outer extremity of the supplemental arm and operatively attached to the upper arm, and a presser-bar having a guide-bar pivotally and adjustably connected thereto and loosely engaging a portion of the needle-bar and having a presser-foot, and means for operating the several parts.
6. In a hand sewing-machine, the combination of upper and lower arms pivotally connected and having operating-handles, a needle-bar ope rati vely attached to the upper arm, a grooved collar movably mounted on the neodlebar,a presser-har having a connection contactin g with said collar, said presser-bar having a presser-foot, a spring-actuated arm having its outer extremity in loose engagement With the said collar, a link having a fixed pivotal connection With the handle of the lower arm, loosely attached to the handle of the upper arm and having its upper extremity in loose relation to the rear terminal of the springractuated arm, complementary stitchi forming mechanism for said needle-bar, and a connecting-rod movably attached to the lower portion of said link and to the said mechan- 1o ism.
In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.
CHARLES H. BENOIT.
L. MAUHEFERT, F. L. MAOHEFERT.