US1128963A - Sewing-machine attachment. - Google Patents

Description

J. K. ELLIOTT.

SEWING MACHINE ATTACHMENT.

APPLICATION FILED MAY 3, 1913 1,1283%, Patented Feb. 16, 1915.

3 SHBETS-SHEET l.

W/T/VE88ES: INVENTOR Ja/M/KELL/OTT.

THE NORRIS PETERS co, PHOTO-LITHO.. WASHINCI'ON. u c

J. K. ELLIOTT.

SEWING MACHINE ATTACHMENT.

APPLICATION FILED MAY 3, 1913.

Patented Feb. 16, 1915.

3 SHEETS-SHEET 2.

INVEIVTOR WITNESSES:

THE NORRIS PETERS 60.. PHOTO-LITHOY. WASHINGI'ON. 04 C J. K. ELLIOTT.

SEWING MACHINE ATTACHMENT.

APPLICATION FILED MAY 3, 1913.

Patented Feb. 16, 1915.

3 SHEETSSHEBT 3.

WITNESSES: IIVVEIVTOR Jan/VA. ELLIOTT THE NORRIS PETERS 60.. PHOTO-LITHQ. WASHINGTON. D. C

FFltl.

JOHN K. ELLIOTT, OFMILLIKEN, COLORADO, .ASSIGNOB. TO THE ELLIOTT.MANUFAC- TUBING COMPANLOF WELD COUNTY, COLORADO, A CORPORATION UTE-COLORADO.

SEWING-MACHINE ATTACHMENT.

Specification of Letters Patent.

Patented Feb. 16, 1915.

Application filed May 3, 1913. Serial No. 765,350.

To all whom it may concern:

Be it known that 1, JOHN K. ELLIoTT, a citizen of the United States, residing at Milliken, in the county of Weld and State of Colorado, have invented certain new and useful Improvements .in Sewing-Machine Attachments; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to button hole working attachments for sewing machines and has for an object to provide an attachment which may be applied to a sewing machine of the usual and ordinary or family type, with means for moving the work in such position that the stitches alternate through the goods at the edge of the button hole and through the button hole itself.

A further objectv of the invention is to provide an attachment for a sewing machine having means for engaging and advancing the work with a step by step movement equivalent to the ordinary feed of a sewing machine and with auxiliary means for moving the work laterally relative to such line of feed.

A further object of the invention is to provide improved means for regulating the length of the stitch.

A further object of the invention is to provide improved mechanism for producing the lateral movement of the goods.

With these and other objects in View the invention comprises certain novel constructions, combinations and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawings, Figure 1 is a View of the improved attachment applied to a conventional sewing machine. Fig. 2 is a view similar to Fig. 1 with the parts shown in different position. Fig. 3 is a top plan View of the attachment. Fig. 4 is a top plan View of the attachment with the operating lever removed. Fig. 5 is a top plan View with the operating lever removed, the parts being shown with the feed in a different position from that shown at Fig. l. Fig. 6 is a top plan view of the device with certain parts removed showing the feed in a position opposite that shown at Fig. 5. Fig. 7 is a top plan view of the cam mechanism for producing a lateral movement. Fig. 8 is a de tail view taken on line 8-8 of Figs. 1 to 7 inclusive. Fig. 9 is a detail sectional View taken on line 99 of Figs. 3, l and 5. Fig. 10 is a top plan viewof a conventional needle plate with. a supplemental needle plate attached thereto. Fig. 11 is a transverse sectional view through the needle plates, as indicated by line 1l-11 of Fig. 10. Fig. 12 isa transverse sectional view through the feed as indicated by line l2l2 of Figs. 3 and 4.

Like characters of reference designate corresponding parts throughout the several views.

The improved attachment which forms the subject matter of this application is adapted to be attached to the presser bar 15 of a conventional sewing machine by the employment of the usual knurled nut 16, such attachment being effected by means of a slotted lug 17 which is preferably formed integral with the main plate 18, so that the entire structure carried by such main plate 18 rises and falls with the presser bar 15 by manual operation in the usual well known manner.

Upon the plate 18 a cam plate 19 is pivoted by the pin 20, the plate 19 being pro vided with a slot 21 which permits limited reciprocating movement as well as pivoting movement. The plate 19 is provided with a clip 22 secured adjustably thereon by means of a screw '22 extending through a slot 23 in said clip as indicated more particularly at Figs. 3, 4, 5 and 9 and passing through a hole 24 in the plate 19 (see Fig. 7 and carrying a nut 25 upon the under side. A lever 26is pivoted on the main plate 18 in position to engage against the clip 22, as shown at Fig. 5, at one extreme of its movement and against a pin 27, also carried by the plate 19, at the opposite extreme of its movement, as indicated by Figs. 3 and 4.

To oscillate the lever 26 a plunger 28 is provided having a slot 29 permitting such plunger to move'both longitudinally and pivotally upon the pin 30 carried by the main plate 18, the movement of the plunger 28 being controlled and positioned by pins 31 and 32 also carried by the main plate 18. These pins are in position to be struck by the edges'of the plunger, and the latter is flared as-shown at'28 in Fig. so that when it is retracted its flared portion centers it between the pins ready to be projected straight forward on the next impulse. 'lhe plunger 28 is provided with an upstanding rib 33 which engages between the fork arms 34 of the lever 26 so that as the plunger 28 reciprocates it oscillates such lever 26 and reciprocates the cam plate 19.

To actuate the plunger 28 an upright 35 is erected upon and preferably integral with the main plate 18, to which is pivoted a bell-crank lever 36, one bifurcated end as 37 slid-ably engaging the needle bar 38 while the opposite forked or bifurcated'end 39 of such lever engages upon the rib 33 of the plunger 28 so that as the needle bar is reciprocated vertically in the usual well known manner the bell-crank lever 36 oscillates upon its fulcrum 40 to reciprocate the plunger 28 and oscillate the lever 26. It will, therefore, be apparent that with each vertical reciprocation of the needle bar 38 the cam plate 19 is given a forward and backward reciprocating movement. To the cam plate 19 a spring 41 is attached carrying a feed 42 having inclined teeth 42 after the manner of an ordinary feed so that as the cam plate is reciprocated the feed is likewise reciprocated. The spring 41 tends to normally hold the feed raised out of engagement with the work, as indicated at Fig. 2 and to hold such feed in engagement with the work when desired a cam 43 is carried by the fulcrum pin 40 and oscillates with the bellcrank lever 36. The cam 43 is provided upon one side with a flattened surface 44 so that when the needle bar 38 is down earrying bell-crank 36 to the position shown at rig. 2, the rear end of a lever 45 pivoted to the main plate 18 as at 46 engages such flattened side and its front end 45 rises and permits the feed 42 to rise to the position shown at Fig. 2 under the action of the spring 41. When the bell-crank lever 36 is raised by the needle bar 38 the lever 45 is oscillated to cause it to depress the feed 42 p as indicated at Fig. 1. The parts are so arranged that when the feed is to be advanced without moving the goods, that is to say, when the needle is down, the feed is free to move without pressure from the lever 45 but when the goods are to be advanced, that is to say when the needle is raised, the lever 45 bears upon the feed 42 as indicated at Fig. 1 so that such feed engages and advances the goods.

The feed 42 is provided with channels 42 as indicated at Fig. 12 and an arm 47 is pivotaliy connected with the main plate 18 by the pin 20, such arm 47 being forked or bifurcated at its forward end and the fork arms resting in such channels so that the feed slides thereon. The bifurcated end of the arm 47 normally rests upon the work in the same manner and in the same position as the presser foot in the conventional machine and its engagement with the work is regulated by the spring of the presser bar 15 so that the work moves under it without such arm being manually raised out of engagement with the work as the latter is advanced by the feed However, each time the feed 42 is depressed, as above described, the lever 45 not only depresses the feed 42, using pivot 46 as its fulcrum, but also slightly raises the entire attachment (except feed 42) including arm 47, by using its front end 45*, resting upon feed 42, as its fulcrum. Thus each time the feed 42 is depressed the arm 47 is slightly raised and its pressure upon the work lessened thus allowing longitudinal movement of the work with the feed.

The feed 42 is provided with a slot 48 of such size that it permits such feed to move relatively to the needle hole 49 both laterally and longitudinally as indicated at Figs. 5 and 6. The longitudinal or feeding move ment of the work and feed relative to such needle hole has been described above. The lateral movement of the feed is accomplished by means of a cam 50 pivoted as at 51 upon the main plate 18 and positioned to engage against the side walls and 53 of the cam plate 19 so that as the cam 50 is oscillated upon its pivot 51 the cam plate 19 is oscillated upon its pivot 20 as indicated more particularly by Figs. 5 and i which show the opposite extremes of movement of the cam 50 and the cam plate 19. As the cam plate 19 carries the feed 42 therewith it is obvious that as the cam plate 19 is oscillated laterally the feed 42 will also be moved laterally and by reason of its tongue and groove connection with the arm 47 such arm is likewise moved laterally upon its pivot 20.

To oscillate the cam 50 the said cam is provided with upstanding lugs 54 and 55 and the plunger 28 is provided with lateral lugs 56 and 57 which alternately engage the lugs 54 and 55 as the plunger is reciprocated, such engaging movement being shown in Figs. 4, 5, 6 and 7. It is obvious, therefore, that as the plunger is reciprocated by the bell-crank lever 36 the cam 50 will be alternately oscillated in opposite directions to likewise oscillate the cam plate 19 and to move the arm 47 laterally. The length of the stitch, that is to say the advance given to the work by the feed, is regulated by adjusting the clip 22, the adjustment being above described so that the work is advanced at each reciprocation of the needle bar but alternate stitches are formed upon adjacent parallel lines and if the work is properly adjusted relative to the device one stitch will be formed at the edge of the button hole while the next stitch will be formed in the button hole itself and not through the work and the thread is thereby carried over the edge of the button hole and twisted to form the usual and ordinary button hole stitching.

As a feed for the work is provided in the--structure itself it is desirable to eliminate the usual and ordinary feed employed upon the sewing machine without removing thesame from the machine. At Figs. 10 and 11 a needle plate 58 is shownhaving slots 59 to accommodate the usual feed. An auxiliary needle plate or cover 60 is'secured upon the top of the main needle plate in any approved manner as by the use of lugs 61, although it is to be understood that such specific attachment is immaterial. The cover 60 is provided in its under side with a cavity 62 registering with the slots 59 so that the ordinary feed operates in such cavity without engaging the work and the feeding of the work being operated upon is accomplished wholly by the feed mechanism which forms a part of this invention.

It will be evident that the attachment may be employed to accomplish, on any other portion of the work, the same kind of stitch ing that is ordinarily done in making buttonholes.

I claim:

1. As a sewing machine attachment, a main plate, a cam plate slidably and pivally mounted upon the main plate, a work-feeding member carried by the cam plate, a cam positioned to move the cam plate laterally, a plunger positioned to ac-- tuate the 'cam and a lever interposed between the plunger and cam plate whereby movement of the plunger reciprocates the cam plate longitudinally.

2. As a sewing machine attachment, a main plate, a cam plate slidably and pivotally mounted upon the main plate, a feeder member carried by the cam plate, means to move the cam plate laterally, a lever actuated by the laterally moving means, and a clip adjustably mounted upon the cam plate in position for engagement by the lever.

3. As a sewing machine attachment, a main plate, a cam plate slidably and pivotally mounted upon the main plate, a feeder member carried by the cam plate, a cam pro vided with lugs at its opposite extremities, a plunger slidably mounted upon the plate, means carried by the plunger for alternately engaging the lugs, and means transmitting motion from the plunger to reciprocate the cam plate longitudinally at each reciprocation of the plunger.

4.. As a sewing machine attachment, a main plate, a lever mounted upon the plate, a cam disk carried by the lever having a flattened side, a cam plate slidably and pivotally mounted upon the main plate, a feeder .mechanism carried by the cam plate, and a lever pivoted upon the main plate having one end in engagement 'withthe cam and its opposite end in engagement with the feeder member. I

5. The combination with asewing ma chine embodying a needle bar; of a main plate adapted to be carried by the sewing machine, a bell-crank lever carried by the main plate and having one arm in engagement with the needle bar, a cam disk carried bythe bell-crank lever at its angle and having one side nearer its pivot than the opposite side, a laterally and longitudinally movable feeder-member held normally and yieldingly raised from the work, connections between theother aria-of said bell-crank lever and the feeder for moving the latter, a'nda lever pivotally supported by themain plate having one end in engagement with the feeder member and its opposite end in engagement witlrthe cam disk.

6.The combination with a sewing machine embodying a presser bar and a needle bar, of aplate carried by the presser bar, an arm having a forked outer end engaging the work, a feeder member slidably and pivotally mounted upon the plate and having channels receiving the fork-arms, means operating fromthe needle bar for reciproeating the feeder member longitudinally and vertically, and means operated from the needle barf'or moving the feeder member and arm'laterally.

'7. As a sewing machine attachment, a main plate, a cam plate slidably and pivotally mounted upon the main plate, a channeled work feeding member yieldingly carried by the cam plate, a cam adapted to move the cam plate laterally, a plunger adapted to actuate the cam,means interposed between the plunger and cam plate whereby the reciprocation of the plunger reciprocates the cam plate longitudinally, and a presser arm having one end standing in said channel for holding the work against accidental movement.

8. As a sewing machine attachment, a main plate, a cam plate slidably and pivotally mounted upon the main plate, a feeder member carried by the cam plate, a cam provided with lugs at its opposite extremities, a plunger slidably mounted upon the plate and having lugs alternately engaging the lugs on the cam, and a rock lever con necting the cam plate and plunger to reciprocate the cam plate longitudinally at each reciprocation of the plunger.

9. As a sewing machine attachment, a main plate, a lever pivotally supported by the plate, a cam disk carried by the lever and having a flattened side, a cam plate slidably and pivotally mounted upon the main plate, a feeder member, a spring sup porting it from the cam plate and normally above the work, and a lever pivotally supported by the main plate having one end in engagement with the cam disk and its opposite end bearing upon the feeder mem- 10. In a sewing machine attachment, the combination with a main plate, a cam plate movably mounted thereon, and a cam pivoted to the former plate and engaging the latter; of a plunger mounted to slide and to swing on said. main plate and having means for oscillating said cam alternately in opposite directions, its forward end being flared, pins rising from said plate and adapted to center the plunger as it is retracted, and means for reciprocating it by the movements of the needle bar.

11. In a sewing machine attachment, the combination with a main plate, a cam plate movably mounted thereon, and a cam pivoted to the former plate and engaging the latter and having upstanding lugs at opposite sides of its pivot; of a plunger mounted to slide and to swing on said main plate and having laterally projecting lugs engaging those on the cam for oscillating said cam alternately in opposite directions, its forward end being flared, pins rising from said plate and adapted to center the plunger as it is retracted, and means for reciprocating it by the movements of the needle bar.

12. In a sewing machine attachment, the combination with a main plate, a cam plate movably mounted thereon and having spaced walls, a cam pivoted to the former plate between said walls for reciprocating the cam plate laterally, a feeder member on the cam plate, and spaced stops rising from such plate; of a plunger mounted to reciprocate and to swing over the main plate and having an upstanding rib, means whereby its reciprocation oscillates said cam, a rock lever pivcted to the main plate and having one end standing between the stops on the cam plate and the other end forked and standing astride said rib, another lever swung by movements of the needle bar and having a forked end also standing astride said rib.

18. In a sewing machine attachment, the combination with a main plate, a cam plate movably mounted thereon and having spaced walls, a cam pivoted to the former plate between said walls for reciprocating the cam plate laterally, a feeder member on the cam plate, and spaced stops rising from such plate; of a plunger mounted to reciprocate and to swing over the main plate and having an upstanding rib, upstanding lugs on the cam, lateral lugs on the plunger adapted to alternately engage those on the cam, the plunger being flared near its lugs, spaced pins rising from the main plate and co-acting with the flared portion of the plunger to center the latter as it is retracted, a rock lever pivoted to the main plate and having one end standing between the stops on the cam plate and the other end forked and standing astride said rib, and another lever swung by movements of the needle bar and having a forked end also standing astride said rib.

In testimony whereof I afiix my signature in presence of two witnesses.

JOHN K. ELLIOTT. Vitnesses CARLE IVHITEHEAD, ALBERT L. VosL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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