US766840A - Sewing-machine tucker - Google Patents

Description

PAIjENTED AUG. 9, 1904.

W. R. PARSONS. SEWING MACHINE TUCKER. APPLICATION FILED FEB. 16, 1903.

3 SHEETSSHBET 1.

NO MODEL.

10 MODEL.

IIIIHIHIIlllllllllllllll W. R. PARSONS. SEWING MAGHINE TUCKER.

APPLIOAIION FILED FEB. 16, 1903.

3 SHEETS-SHEET 2.

A numm PATENTED AUG. 9, 1904'.

PATENTED AUG. 9, 1904. W. R. PARSONS. SEWING MACHINE TUGKER.

APPLICATION FILED PER. 16', 1903.

' 3 SHEETS-SHEET 3.

110 MODEL.

UNITED STATES WINSLOW R. PARSONS,

Patented August 9, 1904.

OF CHICAGO, ILLINOIS.

- SEWING-MACHINE TUCKER.

SPECIFICATION forming part of Letters Patent No. 766,840, dated August '9, 1904. Application filed February 16, 1903. Serial No. 143.541. (No model.)

TOYLZZ whmn it may concern:

" i Be it known that I, WINsLow R. PARsoNs, a

- ments falling under the general class of tuckers known, respectively, as tuck-markers and tuck-folders, or tuckers which do not mark the goods, but simply. serve to fold the same where the tuck is to be formed. The former of these operates to produce a mark or crease as a guide to the operator and is most commonly employed on white or light goods, while the latter form or tuck-folder does not mark the goods, but serves to denote the line where the goods are to be stiched by affording the operator a guide against which to place the apex of the last fold or tuck. This latter form of tucker is especially designed for that character of goods which can- .not or should not be creased or marked by With the first of these the tuck-marker. forms the operation is performed with the tucked and stitched fold of the goods underneath next the knife-arm or lower smoothingarm and the apex of the new fold or tuck against the usual adjustable gage, while the apex of the last complete tuck passes under a small lip or tuck-guide adjacent to the knife to prevent such tuck from riding over the edge of the knife during the tuck-marking operation. With the latter of these forms of tuck-folder, however, the tucked fold of the goods is arranged on top next the upper smoothing-arm and the apex'of the last-finished tuck is placed against the aforesaid foldguide on such upper smoothing-arm, while the apex of the new tuck being formed is placed against the usual gage, which denotes the distance of the new line of stitching from the last tuck. Both of these forms of tuckers require a gage and its scale, a smoothing-arm above the goods, and an arm corresponding to the knife-arm, wh1ch also serves as a smoothing-arm below the goods even when are required a double-expense is entailed, to

adjusting the two separate attachments.

The primary object of my invention is to lcombine the two attachments in one, so that it may be used at will as either a tuck-marker b or a tuck-folder without removing it from the machine.

With these ends in view my invention consists in certain features of novelty in the construction, combination, and arrangement of parts by which the said object and certain other objects hereinafter appearing are at- ,the accompanyingdrawings and more par- ':ticularly pointed out inthe claims.

\ In the said drawings, Figure 1 is a perspective view of a tucker embodying my invention, showing it in operation on a sewingmachine. Fig. 2 is a similar view thereof, ;showing the tucker-arm detached from the needle-bar and held down in its inoperative Eposition. Fig. 3 is a plan view of the tucker detached from the sewing-machine. Fig. i is a side or front elevation showing the tucker- ,arm secured. in its inoperative position. Fig. 5 is a detail plan view of the knife and one end of the knife-arm. Fig. 6 is an enlarged transverse section taken on the line 6 6, Fig. 3. Fig. 7 is a vertical detail section taken on the line7 7, Fig. 3. Fig. 8 is a detail rear elevation of the smoothing-'- arm with the creaser and tuck-folder thereon, showing its relation to the knife-arm and knife. Fig. 9 is a longitudinal section on the line 9 9, Fig. 3. Figs. 10 to 16, inclusive, illustrate a modified form of the invention, Fig. 10 being a plan view thereof detached from the sewingmachine. Fig. 11 is a front elevation. Fig. 12 is a vertical longitudinal section taken on the line 12 12, Fig. 10. Fig. 13 is an enscribed. Fig. l l 1s a vertlcal enlarged cross-section on the knife is not used. Thus where both forms ,tained, all as fully described with reference tolarged detail perspective view hereinafter de-' Fig. 13 is a detail of the creasein.

say nothing of the trouble of changing and Lia.

the line 14 14, Fig. 10. Fig. 15 is an end elevation looking from the left inFig. 10, and Fig. 161's ancnlarged detailperspective view of the knife and end of the knife-arm.

1 is a flat strip or bar which constitutes the knife-armand upon the" edge of which is formed an extension'2, whose inner edge is upturned to. constitute a sharp member or knife 3, and with which member or knife 3 cooperates the crease notch or marker .4, arranged directly above the knife 3, as usual, and formed in the lower surface of a downwardly bent or curved portion5 of a finger or lever having an upwardly=extending portion 6 and secured to a flexible arm or strip 7, which is marked with the usual graduations, extends over the knife-arm 1, and exerts a normal tendencyto holdthecrease notch or marker taloof from the knife 3. The two arms 1 7 may be secured together at their meeting ends in any, suitable way such, for

example, as passing a h1g8 on the end of arm 7 through a lip or flange 9 on the end of bar 1 and then riveting the two bars together at another point. This rivet may be constituted by the end 10 of a spring 11, which is also passed through the lip or flange 9, thereby serving the twofold purpose of holding bars 1 and 7, as well as the spring, one end of which is straightened out to constitute the operating-arm 12, and which extends longitudinally of the arms 1 7 and is adapted to strike and depress thefinger extension 6,, and thereby produce the creasein the goods passing over the knife 3. The endof the arm 12 is provided with a downwardly-extending book 13 in order that it may better engage and operate the finger 6, and in order that the arm 12 may be thus oscillated in unison with the needle-bar 14 it isprovided with a clip 15, held thereon by a pair of cars 16, so as to be capable of h sliding longitudinally on the arm and pro vided witha hook 17, adapted toengage theneedle 18 just below the needle-bar, whereby the,

arm 12 is attached to the needle-bar and moves up and down therewith to engage and depress the finger extension 6 and arm 7 at, every downward stroke ofthe needle. Should it be desired, however, to stop the operation of the tuckmarker, the clip 15 is unhook'ed from the needle and slipped along the arm 12 until the hook of the clip can be engaged in an eye 19, secured to thetuckerin any suitable way, as by means of the end 10 of the spring passing therethrough, the arm 7 being vbent or shouldered at 7 to prevent theeye 19 from rotating on the riveted end 10. of thespring.

Upon this smoothing-arm 7 and on the lower side of the free end thereof is also mounted. the tuck-fold guide 20, which, as better shown in Fig. 8, is in direct line withthe tuck marker or notch and the knife, 3. i

.21 is thescrew or other suitabledevice for and without either tucks or folds. usingthe device as a tuck-folder, as shown in attaching the plate to the sewing-machine plate, and the plate preferably consists of a fiat strip or sheet of metal or other suitable material 22, folded upon itself, with one fold over and the other fold under the arm 1, and between which folds said arm slides, the screw 21 being passed through a slot 23 in both folds of plate 22, so as to be also utilized asa means of clamping the arm 1 in the position to which it is adjusted. The arm 1 may be held against lateral or transverse movement between the folds of the plate 22 by upturned lugs 24c'or other suitable means, and the free ends of :the plate 22 are secured together by a lip 25, struck up from the lower one and folded over the-upper one.

26 is the tuck-gage, which serves without change as a gage for both the tuck-marker 3 and the tuck-foldguide 20, inasmuch as it bears the same relationto-both. This gage 26 has a lip 27,, through which passesa strip 28, secured to the plate 22 and havinga suitable scale marked thereon. The'gage 26 is ;also provided with astembr slide 29, which passes between the folds of plate 22 and has .its upperend turned upin'the form of a lug or stop 30topreventit'fr'om being pulled out,

.The slide 29 is 'guidedor held against lateral movement by lugs or flanges 31, turned up at the edges thereof from the lower fold of plate 22. The strip 28.is also held between the two foldsofplate 22, and it is secured :against' longitudinal movement by the lugs 24 31, which overlap the edges of the strip,

as shown in Fig. 3. 'It is also seen that the screw 21 serves asa means for clamping the slide 29 atthe desired adjustment. i

I will describe first the operation of the device as a tuck-marker, as shown in Fig. 1, although in the main itdoes not-differ in ,such use from the operation of theordinary tucker. and the apex of the fold placedagainst the The fabric is first folded upon itself gage-lip 27, the'latter being set for the desired Width of tuck, and the fabric is then stitched to produce the first tuck. This tuck is then drawn beneath the top fold and its apex placed under and against the usual tuck guide lip 3*, with the single thickness of the lower fold passingover'the knife 3, whilethe apex of the new or main fold is placed against gage 27 after which the folds are again stitched together valong the crease or mark formed by the knife and creaser to produce another tuck, and so on, the tucks beingalways turned under thetop fold, which is plain When F ig. 2that is, for folding the tucks without i 7, as before.

I I Assuming that thetucks are to be of the same width as those produced with th'e'tuck-marker in'operation, the gage 27 is allowedto remain unchanged, and the apex of the fold is placed thereagainst, and hence the seam when run will fall the proper distancefrom such apex, thus producing the first tuck. This tuck instead of being drawn beneath the top fold is pulled over the bottom" fold toward the left until the tuck engages the fold-guide 20, with the apex of the tuck resting in the crotch formed by such guide and the bottom of arm 7. With the first tuck thus positioned the fold of the fabric is now workedtoward gage 27 until the apex of such fold rests thereagainst, whereupon the goods will be inposition to be stitched, thus producing the secondtuck, which is then drawn around on top and pressed against. guide 20, as before." It will thus be'seen that the guide 20 is necessarily positioned above the goods and net below the same, whereas the guide 3 is necessarily below the goods.

Referring to the form of my invention shown in Figs. 10 to 16, it will be seen that the crease notch or marker 4 is formed in the elbow 32.0f a downwardly-extending arm 33 on the'end of a spring-arm 12, which is thesame in construction as the arm 12 before described; but in this instance instead of being acted on directly by the needle-barit isacted on through the intermediary of a separate operating-arm 34, which is engaged by the needle-bar as the latter descends, and thereby causes the crease-notch 4 to press the goods against the knife 3 the arm 34 being returned as the needle-bar rises by the springarm 12. The arm '34 is :pivotally supported on the plate by'means of a pivot 35 and a standard 36 and projects acrossthe springarm 12; but instead of impinging the arm directly it is preferable to cause the arm '34 above which on the screw is located a jamnut 39 forlocking' the screw in position. When it is desired to throw the tuck-marker out of operation, so that the crease-notch will cease to engage the goods, the arm 34may be thrown outwardly out of the line "of movement of the needle-bar by turning it on its.

pivot 35. In order, however,that thearm 34 will remain in the position in which it is placed, it is desirable to provide it with some suitable form of friction-hold that'will permit of it being readily placed in either position. For this purpose I have shown a -spring-dog 40, secured to the side of standard 36 and prothe arm 34.

jecting around the edge thereof in position to engagewith either of two shoulders 41 42 on The dog 40 may be held in place by the same pivot 35 which fulcrums arm 34, and in order that the dog may not revolve with the arm it is formed with a perforated extension 43, through which the spring-arm 12 is passed. In this form of the invention the tuck-fold guide is constituted on the arm 7 by two downwardly and laterallybentlips 20 on a cross-bar 20 formed integrally with the arm 7 in line with the crease marker or notch 4 on the arm 12'. The plate is formed, preferably, integrally with a sewing-machine presser-foot 44, provided with a bifurcated lug 45, whereby it may be attached to the presser-foot bar of a sewing-machine in the well known manner. The. presse'r-foot 44, however, is cut off short at its forward end, as shown in Fig. 10, so that the gage 26 may be moved as close as possible to the needlehole 46, and thereby preclude the possibility of the goods slipping before being stitched. The plate is constituted in this form by bottom plate 47 extending under the arm 1 and slide 29 and having upturned flanges 48,

through which the slide 29 passes, and a top plate49, which is substantially L-shaped, with a projection 5O on one side carrying the standard 36, and which plate 49 is'secured to the ibottom plate 47 by rivets 51 or other suitable means, and where the plate 49 passes over the slide 29 and arm 7 X it is arched, as shown at 49, and through these arches are threaded two set-screws 52 53, which impinge the slide.

29 and the arm 1*, respectively, so as to hold them at their proper adjustment. The scale plate or strip 28* for the gage26 is secured to the top plate 49 between the arches 49 by it being observed that the upturned flange 27 in Fig. 10 extends from the edge of the varm 1 to the forward end of the gage and that the slide or stem 29 projects from the lower edge of the flange 26* instead of from the end or corner of the gage, as in Fig. 3.- This difference in form, however, is incidental to the difference in the method of producing the gage of a single piece and turningthev guide-stem 29 backwardly from the lower edge of flange 27 I It is quite obvious that while the crease marker or notch 4 is shown as formed directly upon the creaser-arm 12* inFigs..lOi

to 16 it might nevertheless be carried on the ICC struction' and arrangement of crease-notch,v knife, and tuck-fold shown in Fig. 1- as they are to the form shown in Figs. to 16.

nation with the plate and means for attaching I and a creaser, of a tuck-fold guide arranged Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is

1. In a sewing-machine tucker, the combithe same to the sewing-machine,'of two arms arranged one above the other and longitudinally adjustable 'on said' plate but secured together and immovable relatively, a tuck-fold guide carried by the upper one and a knife carried by the lower one of said arms, a creaser for said knife anda fold-gage, common to both said knife and guide, and bearing the same relation to each other. 7

2. Ina sewing-machine tucker, thecomhi nation with a knife, a creaser, a creaser-arm,

and means for securing the tucker to the se w' ing-machine, of a pivoted operating-arm for oscillating said creaser-arm independently movable transversely thereof, locking-shoulders on said operating-arm, and a pivoted spring-dog adapted to. engage said shoulders and attached to said creaser arm for holding the latter steady. Q. v

3. In a sewing-machine tucker, the combination with a knife, a creaser and a creaserarm, of an operating-arm extending transversely of said creaser-arm and movable independently thereof; locking-shoulders on said operating-arm, a friction-dog adapted to en- 4 gage said shoulders, attached to said creaserarm, a support for said operating-arm, a pivot connecting said dog and operating-arm to said support, and means for securing the tucker to the sewing-machine. I

4:. In a sewing-machine tucker, thecombination of a plate, comprising an 'upper plate formed with an arch or upward bend, a knife,

a knife-arm passingunder said arch, means lnation with the plate, means forcattaching thefor supporting said knife-arm on one of said plates, a set-screw threaded through saidarch and impinging said arm, a creaser, means for operating said creaser, and means. for securing the plate to the sewing-machine.

5. In a sewing-machine tucker, the combination with means for securing the same to the sewing-machine, a knife and a creaser, ofthe plate comprising an upperplate formed with two upper bendslor arches and alower plate located below said upper plate and: secured thereto, a'knife-arm passing through one of said arches, a set-screw threaded in the latter said arch and impinging said arm, a gage comprising a stem passing through the other of said arches, and a set-screw passing through the latter arch and engaging said stem.

' 6. Ina sewing-machine tucker, the combination of the plate, means for attaching the same to the sewing-machine, a knife, a creaser, a flexible creaser-arm, an operating-arm hav-v ing locking-shoulders and adapted to act upon said creaser-arm, a laterally-defiectable springdog for'engaging said shoulders adapted torest upon said plate, a pivot connecting said tuckerarm and dog to the tucker and an extension on said dog through which said creaser-arm passes.

7 In a tucker, the combination with a knife fold guide arranged above the edge of the knife 3 but in line therewith and with said first guide, and a gage arranged, opposite said guides for engaging the apex of the fold of the goods :while such fold is being stitched.

9. In a tucker, the combination with a knife and a creaser, of a fold-gage adapted to engage the apex of the fold being stitched, and a tuck-fold guide arranged opposite said gage iand turned downwardly to engage the .edges ;of the tucks while on the upper side of the goods,-and bearing the same relation tov said gage as said knife, whereby the one gage serves for both theknife and the fold-guide. 10. In a sewing-machine tucker, the combination with the plate, and meansforattaclr ing the same to the sewing-machine, a knife, a creaser for said knife and a tuck-fold guide, Iof a longitudinal scale-bar arranged below lsaid fold-guide and adjustably secured to said lplate and common to and permanently conjnected with said knife, creaser and guide and adjustable in unison therewith, 1

11. In a sewingmachine tucker, the combisame to the sewing-machine, a knife, a creaser lfor said knife, and a tuck-fold guide, of a llongitudinal scale-bar arranged .below said ifold-guide and adjustably secured to said plate land common to and permanently connected lwith said knife, creaser and guideand adjustlable in unison therewith, and a fold-gage com- }mon to said knife, creaser and guide and ad justable along said scale-bar. v

12. In a sewing-machine tuckenthecombia {nation with the plate, means forsecuring the same to the sewing-machine, and two horizontal arms arranged one above the other and lslidably connected to said plate, of a knife lsecured to one of said arms, a creaser for said .knife secured to and movable withsaidlarms IIO as the same slide with relation to said plate, a fold-gage attached to said plate, and a foldguide secured to the under side of the upper one of said arms and located the same distance from said gage as Said knife, whereby the same gage serves for both the fold-guide and the knife.

13. In a tucker, the combination with a knife and a creaser, a tucker plate comprising 10 means for attachment to the sewing-machine,

of the goods, and a fold-gage for engaging 5 the apex of the fold being stitched.

' W. R. PARSONS. Witnesses:

WM. 0. HOLLATZ, A. DOHRMANN.

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