US1264886A

US1264886A - Picot-edging attachment.

Info

Publication number: US1264886A
Application number: US11210016A
Authority: US
Inventors: Max A Bergwardt
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-07-29
Filing date: 1916-07-29
Publication date: 1918-05-07
Anticipated expiration: 1935-05-07

Description

' M. AERGvx/Ann'r.

, PLGOT EDGINR Af'ACIWIENT.

APPLICATION FILED JULY29. 15H3.

3 SHEETS-SHEET l.

d?, Q www IVI. A. BERGWARDT.

TlcoT TDGTNG ATTACHMENT.

,w APPLICATION FILED IULYZS 15H6- 1 3L Pateme May 7, MME.

M. A. Bmx/Mami PICOT EDGENG ATTACbWENT.

APPLICATION FILED JULY29.I916.

Patented May 7,1918.

3 SHEETS-SHEET 3- www', Ovw @u @3M-MLS @1t/Come PICOT-EDGIN Gr ATTACHMENT.

Lacasse.

To all whom t mag/concern.'

Be it known that I, MAX A. BERGWARDT, a citizen of the United States, and a resident of Elizabeth, in the county of Union and State of New Jersey, have invented a certain new and useful .Improvement in Picot-,Edging Attachments, of which the following is a full, clear, and exact specification.

rlhis invention relates to a class of devices adapted to be employed in conjunction with hemstitching machines.

My invention has for its object primarlly to provide a device, or attachment designed to be applied to a hemstitching machine whereby a form of trimming for womens garments commonly known as picot edging may be produced without requiring anyV handwerk as isincident to methods ordinarily in use, and which is of a form so that the requirement for detaching the device from the machine whennot employed may be obviated. rllhe invention consists essentially of a cutter preferably in the form of apair of scissors which is adapted to be applied to a hemstitching machine so as to I be operated for separating the connected 4stitches of the hemstitching when the machine is operated, and connecting the cutter with the piercer bar `of the machineis -a form of mechanism whereby the cutter will be operated simultaneously with the operationof the piercer for making hemstitch holes.

@ther objects of the invention are to provide for the cutter a supporting bracket adapted to be adjustably attached to the presser-foot bar of the machine; to provide means whereby the cutter may be adjusted relatively to the presser-footof the machine; and to provide aipicot edgin attachment of a simple, eliicient and dura le construction.

.With these and other objects in view the invention will be hereinafter more particularly described with reference to the accompanying drawings forming a part of this specification in which similar characters of reference indicate corresponding parts in all.

the views, and will then be pointed out in the claims at the end of the description.

In the drawings, Figure 1 is a fragmentary view showing a side elevation of one form of picot edging attachment embodying my invention as applied toa hemstitching Specification of Letters Patent.

Patented May v, raie.

Application filed Ju1y`29, 1916. Serial No. 112,100.

chine being in lowered positions.

Fig. 2 is a fragmentary view showing an opposite side elevation of the'I device and the parts of the machine shown in Fig. 1.

Fig. 3 is a fragmentary view showing a side elevation of the device with the needles and piercers of the device in elevated posi tions.

Fig. 4 is a fragmentary view showing a front elevation of the presser-footl and its bar together with the piercer of the machine with the device attached thereto.

Fig. 5 is a fragmentary view showing. a rear elevation of the device attached to the presser-foot bar and to the piercer of the machine.

Fig. 6 is a sectional View, partly in detail, taken on the line Vl-Vl of Fig. 3'.

Fig. 7 is a front'elevation of the piercer and supporting bracket of the machine.

Fig. 8 is a side elevation thereof. Y

Fig. 9 is a side view of one of the links of the mechanism for operating the cutter.

Fig. 10 is an edge view thereof.

Fig. 11 is a side view. of the second link of the mechanism for operating the cutter.Y

Fig. 12 is a section taken on the line XII-XII of Fig. 11.

Fig. 13 is a side elevation of the supportmachine, the needles andpiercers of the maing bracket of the cutter of the device.

Fig. 14. is a rear elevation of the supporting bracket.

Fig. 15 isa top plan of the supporting bracket.

' Fig. 16 is an inverted plan thereof.

Fig. 17 is' a sectional view, partly in detail, taken on the line XVIll-XVII of Fig. 1 5, and

Fig. 18 is a sectional view, partly in deail, taken on the line ,XVIII- XVIII of ig. 1. I

y'llhe device, or edging attachment hasv a supporting bracket 10 formed of a substantially square plate 11 with an opening 12` in its central part adjacent to one of its edges to allow the plate to be removably guided itu over the lower end part of the sprin actuchine is also provided with a reciprocable bar 17 carrying two spaced needles 18and 19 towhich la Vibratory movement is impartedby levers, as l2() and 21, which are operated in unison with 1the needle 'bar 17, and between this needle bar and the presser-foot bar` 13 is a reciprocable bar 22 on which is held a bracket 23 having on its lower end a well-known'form of piercers, asv 24, for.

making the usual holes in the material being hemstitched, while in front of the needles 18 and 19 is thev customary auxiliary piercer, as

' 25,"held to the needle bar 17 by a bracket, as

26, the needle bar 17 and piercer bar 22 being operable with the operation of the machine to simultaneously operate the needles 18 and 19, piercer 24 and auxiliary piercer. 25.

lThe lsupporting bracket 10 of the device is arranged onthe presser-foot bar 13 of' *the machine so that the plate 11 extends transversely in aA rearward direction relatively to this bar as well as rearwardly with respect to the presser-foot 14,'and to hold the Vbracket to the bar 13 against accidental movement, through the plate 11 is a threaded opening in which is av set-screw 26 engaging the presser-foot bar. Projecting upwardly fromthe plate 11 so as to be spaced from the presser-foot bar 13 is an arm 27 having .a bifurcated upper end to provide a vertically disposed slot, as 28, vand in the bifurcated parts of this arm are registered threaded openings through which va screw l29 ispassed, while in the upper free end of the arm 2 7 is another threaded opening in which is a set-screw SO-adapted to be rotated into engagement with the screw 29 for locking this screw 29 against movement. Extending angularly in a lateral direction from the upper part of the arm 27 of the bracket 10 is a finger 31 with a hole 32 therethrough, and -projecting downwardly from the underside of the plate 11 of the supporting bracket is an extension 34 of the shape ofsubstantially an inverted U to provide a vertically 'disposed circular slot 35'between the arms of the extension, and through ing with the upper end of the slot.

.first hemstitched by operating the machine for-Working the needles 18 yand 19 with thev piercers 24 and 25 'in the usual manner and heretofore ithas been the custom to separate by handwork the stitches connecting' the hemstitching. In order to sever these connecting stitches by the use of my device simultaneously with the accomplishment of ythe hemstitching, an adjustable cutter, as

39, is provided. The cutter39 is preferably in the form 0i a pair of scissors having two blades, as 40 and 41, which are adjustably arranged between the `fingers 37 and 3S of the slotted extension 34 of the supporting bracket 10, and the central parts of the blades of the scissors are pivoted, at 42, to the finger of the supporting bracket. The cutter, or scissors 39 are arranged so that the

bladesv

40 and 41 will be moved relatively to each other in upwardly and downwardly directions, and the forward parts of the blades are of lengths to extend into the space between the toes of the presser-foot 14 or' the machine contiguous to the piercer 24, while the opposed edges 'of the blades are sharpened to a keen cutting edge, as at 43 and 44. The opposite parts of the blades are of lengths to extend some distance rearwardly of the supporting bracket 10 of the device, and these ends of thecblades may be curved upwardly, as at 45 and 46, respectively. In the curved end 45 of the blade 40 of the scissors is a' hole in which is held thelower end of a spiral spring- 48 having its other end held in the opening 32 of the finger 31 of the slotted arm 27 of the bracket 10. and this spring normally serves to force the cutting end or' the blade 4() downwardly between the toes of the presser-.foot by forcing the rear end of this blade in an upward direction.

The cutter 39 is operable in unison with the operation of the needles 18, 19 and with the

piercers

24 and 25 when the machine is operated, and to accomplish this, a mechanism, as 49, is provided. The mechanism 49 may bein the form of an adjustable counection composed of two

extensible members

50 and 51. The member 50 has a link, or bar 52 with its lower end pivoted, at 53, te the curved, end 46 of the blade 41 of the cutter, or scissors 39, and this link has ay set screw 54 threaded in an openingfin its upper end. The screw 54 passes through a slot 55 provided in the lower part of a second link, or bar 56 of the member 50 to allow the links to be extensibly adjusted for lengthening or shortening this member. The member 51 has a bar 57 with one ci.

its ends pivoted, at 58, to the upper cud of the bar 56 of the member 50, and in the central part of the bar 57 is aslot 59. The bar 57 of theinembrr 51 is inovabl)r disposed in the slot 28 of the arm 27 ot Y the supporting4 bracket 10.I and through the slot 59 of this bar is passed the screw 29 of the arm 27 of the bracket. The bar 57 of the member 51 is thereby adapted to be rocked in the slot 28 of the arm 27 of the Lacasse i supporting bracket,l "and extending outwardly from one of the faces of: this bar 'at its second end are two spaced flanges, or Ilugs60 and 61, To thelugs 60 and 61 Q .is pivoted, at 62, one' end of an arm 63 adaptedv to be swung laterally toward and -rom the bar 57 of the member 51, and on the free end of the arm 63 oi the bar 5T is a ring 64. The ring (i4-is adapted t0 be removably guided over a screw 65 extending rom the upper part of the bracket 23 of the piercerv 24 for fastening the member 51 to this bracket, and to prevent the ring from accidental displacement on the screw 65 to the bracket 23 .of the piercer' 2 4 is pivoted, at 66, an upwardly swinging bar 6'? adapted to bemoved in rictional engagement with the exposed face of the screw 65 after the vring 64 of the member 51 is arranged thereon. To adjust the cutter, or' scissors 39 relativelyl to the presser-foot 14 of the machine for properly separating the connecting stitches of the hemstitching in the slot 35 o1u the extension 34'- oi the supporting bracket is a movable block 68, Figs'. 14, 16,17, and in the threaded opening 36 .of the plate 11 of the supporting` bracket is a linger screw, as 69, adapted to be rotatably 3c moved into contact with the upper end of the block so as to be forced downwardly in the slot against the upper edge of the rearpart of the blade 41 'of the cutter, or

scissors against the tension ot' the spring 48. illhis blade of the scissors may thereby be accurately positioned in the path of the connecting stitches of the hemsttchng while the material is being hemstitched for separating the connecting stitches, and by accordingly adjusting the

extensible links

50 and 51 ofthe mechanism 49 the blade 40 'of ythe scissors may be suitably `.adjusted with relation to the blade 40 for causing the scissors to properly operate.

When the machine is operated to produce hemstitching of material in the usual manner, and when the piercer bracket 23 is reciprocated by the reciprocation of the bar 22 fof the piercer 24, the `linkl 51 of the mechanism 49 will be rocked to impart upward and downward movements tothe blade.

41 of the cutter, or scissors, and as the blade 40 is yieldingly movable lthe scissors will then operate in unison with the `operation of, the machine .to cut the connecting stitches of the hemstitching to produce with facility picot edging. To dispense with the use of the device, for instance when it is desired to employ the machine to accomplish hemstitching alone without detaching the device,

loosened from its engagement with the )ressenfoot bar 13, andthe device is rotataly swung i'so that the cutting ends of the aa scissors will' rest on one of the toes ont the tively carrying a pair of scissors, adapted the screw 26 of the supporting bracket 10 is presser-foot, 14, as shown at Fig. 6, following the raising of the finger-screw 69 to free the pressure of `the block 68 on the blade 41 of the scissors.

In the foregoing description, ll 'have embodied the preferred form of my invention, but I do not wish to be understood as limiting myself thereto, as I am aware that modiications may be made therein kwithout de parting from the principle, or sacrificing any of the advantages of this invention, therefore I reserve to myself the right to make such changes as fairly fall within the `scope thereof.

Having thus described my invention, I claim as newand desire to secure by Letters Patent i 1. In a picot edging attachment, the com bination with a supporting bracket opera to be appliedto the presser-foot bar of a hemstitching machine having a reciprocable piercer-bar, of a member formed of extensibly adjustable links one being pivoted to one of the blades' or' scissors, a rocking bar on the bracket, havin one of its ends pivoted to the second link of said member and having its other end pivoted to' the piercer-bar, and means connecting the sec-v ond blade of the scissors to the bracket for normally retaining in depressed position the cutting end of said second blade between the toes of the presser-:toot of the machine.

2. ln a picot edging attachment, the combination with a supporting bracket operatively carrying a pair of scissors, adapted to be removably applied to the presserefoot bar of a hemstitching machine havin a recifprocable piercer-bar, of a member ormed o extensibly adjustable links one being 105 pivoted to one oi the blades of the scissors a rocking bar on the bracket, having one of its ends pivoted to the second link of said member and having its other end pivoted to the piercerebar, means connecting the second blade of the scissors to the bracket for normally retaining in depressed position the cutting end of said second blade between the toes of the presser-foot of the machines, and means on the bracket, operable for al- 115 lowing the cutting endsfof the scissors to be adjustably raised and lowered between the toes of said presser-foot.

3. In a picot edging attachment, the combination/v with a supporting bracket opera- 120 tively carrying a pair of scissors, adaptedto be removably applied to the presser-foot bar oi? a hemstitching machine havin a recipable member having one of its ends pivoted .1.25 to 'one of the bladesofvthe scissors, a rocking bar on the bracket, having one of its ends pivoted to the second end or' said mem-` ber, means hinged to the second end of the rocking bar as well as being pivoted to the all '1,264,886

l end of said second blade between the toes of the presser-foot of the machine.

. 4. ln a pieot edging attachment, the comn bination with a supporting bracket operatively carrying a pair of scissors, adapted .to be removably applied Ato the presser-foot .bar of a hemstitehing machine having a reoiprocable piercer-bar, of an eXtensibly adjustable member having one of its ends pivo'ted to one of the blades of the scissors, meanson the bracket as -Well as being connected to the extensible member and connected to the piercer-bar whereby the piercer-bar 4When reciproeated will impart reciprocation to said member to cause the blade of the scissors to move upwardly and downwardly, means connecting the second blade of the scissors to the bracket for normally retaining in depressed position the euttngend of said second blade between the toes of .the presser-foot of the machine, and means on the bracket, operable for allowing the cutting ends of the scissors to be adjustably raised and lowered between the toes of said presser-foot.

This. specification signed and witnessed this 28th day of July, A. D. 1916.

M AX A. BERGWARDT.

Witnesses:

GEORGE F. BENTLEY, C. SHLEGLEY.