US2476602A

US2476602A - Sewing machine for appliques

Info

Publication number: US2476602A
Application number: US557072A
Authority: US
Inventors: Harpham Walter
Original assignee: Nachman & Sons L
Current assignee: L Nachman & Sons; Nachman & Sons L
Priority date: 1944-10-04
Filing date: 1944-10-04
Publication date: 1949-07-19
Anticipated expiration: 1966-07-19

Description

July 19, 1949. w. HARPHAM 2,476,602

SEWING MACHINE FOR APPLIQUES Filed Oct. 4. 1944 5 Sheets-Sheet 1 INVENTOR lgulrer Hurplmm ATT NEY July 19, 1949.

Filed Oct. 4. 1944 Jilin W. HARPHAM EWING MACHINE FOR APPLIQUES 5 Sheets-Sheet 3 INVENTOR l UuHer Hurphqm July 19, 1949. w, HARPHAM 2,476,602

SEWING MACHINE FOR APPLIQUES Filed 001:. 4. 1944 5 Sheets-Sheet 4' INVENTOR ulrar Hur hum B ATTORZY 5 Sheets-Sheet 5 Filed Oct. 4. 1944 4INVENTOR llialrerHurphum Patented July 19, 1949 UNITED STAT ES OFFICE SEWING MAcHtNEFoR AfPLIQUi'is Walter Harman; Hartford, N. assign'oi to- Naeliman & Sons, a partnership comprising Bouis Nachman, Joseph Nachman, and Jack Nachman; all-of Pliiladelpliiagra. Application October 4, 1944;.seria1 No. 557,072

My invention relates to sewing a pliquesupdn a fabric in order to provide an attractive appearance to the garment.

Heretofore, appliqus which are ornaments of one material affixed to the surface or another have been employedi Y My invention provides applique of two symmetrically arranged't'ape's runni'ng'in an irregular or regular configurationupoii the surface of fabric; whereby the applique may be held by a plurality of spaced row of stitches.

It is an object of my invention to provide a sewing machine with'mechanism whereby are symmetrical designs may be stitched 136' a fabric simultaneously. 7

Another object of my invention is to provide" a sewing machine with mechanism whereby two symmetrical designs may be sewed'upon a surface by a plurality of rows of stitches simultaneously Another object of my invention is a sewing" machine with mechanism whereby two symmetrical designs may be sewed to a surface by a plurality of rows of stitches and'whe'reby the" designs may be changed by ch'an'g'irig'the' me'cli anism. 7

Other objects of m invention are" tb provide an improved device of the character described; that is easily and economically produced, whiclri is study in construction, and which is" highly effi cient in operation.

With the above and'related objects'in new, my invention consists in the details of. construction' and combination of parts; as will be 'mo'ie" fully'und'erstood from the following description; when read in conjunction witli' the acccmpany ing' drawing in which: 7

Fig. 1 is a front view of asewing machine" enibodying my invention for sewing applique to fabric.

Fig. 2 is a rear elevational'view' of the sewing machine of Fig. 1.

Fig. 3 is an end view of the'sewin'g 'machine" Fig. 9 is a sectional viewtakenalongftlie line Fig. ro-is a plan view of the tape guide. r

Fig; 1 1 is a: side View of the tape guide taken along the line ll -llof Fig. 10. A

Fig. 12 is an end view o'f the tape guide taken along the line [2 12" of Fig. 10:

Fig; ,ISis' a bottom view of'the 'tape guide.

1-4 isa plan view or an applique as made-on the machine embodying myinve'ntion;

Fig. 15 is another specimen of applique's as made on the machine embodying my invention.

Fig. 16 is a section view taken on the line lG-ifi of Fig. 14.

Referring nowi'n detail to the drawings, I- show in Fig. 1 a; sewing machine wherein a plurality of piecesof tape or binding are symmetrically laidupon the-surface of afabric to form applique and Wherei'na plurality of parallel rows' of stitchesfasten the tapes or bindingsto the fabric.

The sewing machine which comprises a hollowmachine frame'or casing, generally designated-as A has a needle bar' 20 that carries a'plurality ofsewing needles 22 in a needle support 24-; see Figs.- 1', 2', and 3. A-presser bar 26, see Figs. 7,. 8,29, located behind the needle bar 20 reciprocates vertical-1y inthe customary'manner by the custom-- ary sewing machine mechanism (not shown). The presser bar carries a foot 26 having an opening.,2-8 therein through which the sewingneedles 22 operate. A guide 29 for guiding tape as extends acre'ss the presser foot 2-6 in front of the sewing needles for a purpose to be herei'naiter described. Each needle 22 sewsa row of stitches which may be chain stitches or lock stitches;

A throat cloth plate 3(l', mounted upona horizoritalworli support 32', has suitable slots'tlierein thl'bilgH which operate rcws'ef teeth or a feed: dog (not shown) to feed the fabric or work; off or" tcwardstne rea'rfdf" the work support 32; the work passingovertliethrdat plate 313; and'und'er the presserfo'o't.

Two'reel's' 35; 3"5 ofta'p'e or binding'fi' are suitam'y'mcuntedon a; bracket 56, which bracket'may beattaicfiedto the frame A.

The'reels 35 reunder' some tension by virtue of's'priiig's 3T thereon to previit'u'ndue unwinding: of the reels of tape, see Figs. 5 and 6. V

The tap i eil is f'ecl'into guides; generally designateda'sBarld B I; see 10th 13- inclusive; which tape to" overlap in? order" to pre'se'nt a heater; appearanee to" the t-a'pe or binding, or in the event" the edges of the tape are unbound soth'at the sidesare overturn d tbprevent'uie fraying-of the tape 61" binding.

Each of the guides B and BI comprise a tapered tunnel 36, whose free end bore 38 is elliptical and whose fixed end bore 40, although elliptical, is of smaller size than the free end bore. At the longitudinal center of the bore are upturned

curved guides

42, 44 which overturn the sides of the tape or binding, so that when the fixed end bore 48 of the guide B is reached the sides of the tape or binding are overlapping the central portion of the tape 34. The

curved guides

42, 44 are cut from the body of the guide and are preferably integrally formed therewith although they may be made of a separate piece and attached to the guide B, B I. in detail, moves the guides B and BI parallel to one another crosswise of fabric or work but in opposite directions, that is to say, guides B and BI move together simultaneously and away from one another simultaneously when the guides are laying the tape or binding upon the fabric to form an applique design. Hence, as the guides B and BI move in and out sideways of the fabric they lay curved applique strips which are symmetrically balanced with respect to a center line. The plurality of needles 22 then sew in the customary manner a series of parallel rows of stitches through the tape 34 and the fabric.

Guide moving mechanism The mechanism for moving the guides is as follows:

Guide B is supported on a bight portion 46, which is in front of the sewing needles 22, of a U-shaped bracket whose

ends

48, 58 are attached to a horizontally positioned, rectilinear movable rod or shaft 52 supported in

bearings

54, 54 carried by rear side of the frame. The rod 52 moves in a rectilinear direction in

bearings

54, 54.

The second guide BI is supported on a bight portion 56, which is in front of the sewing needles 22, of a U-shaped bracket whose ends 58, 60 are attached to a horizontally positioned, rectilinearly movable rod 62 that is carried in

bearings

54, 54, see Figs. 1, 2 and 3. The shafts or

rods

52 and 62 are mounted parallel to one another and they reciprocate in opposite directions, thereby moving the guides B and BI in opposite directions.

Means to move guide moving mechanism The guides B and Bi are adapted to move in opposite directions by virtue of the movement of the horizontally supported

shafts

52 and 62 in the bearings 54.

The

shafts

52 and 62 are moved in opposite rectilinear directions by the following described mechanism:

The main shaft 66 of the sewing machine passing through the frame A of the sewing machine is rotated by either foot or electric motor (not shown) and the shaft 66 has a worm gear 68 thereon. A large gear I8, supported on a shaft I2, carried by bearings I4, I4, is coupled to and driven by worm 68, see Fig. 4. The gears 68 and 10 are moimted at right angles to one another.

Upon one end of the shaft I2, to the rear of the frame A, a spur gear I6 is rotatably mounted and the gear I6 has coupled thereon an adjustable eccentric I8 which is pivoted to a slide 80 that may be tightened by a screw 82. Adjustment of the eccentric 58 away or towards the center of the shaft I2 determines the lateral distance that the guide B moves or oscillates, see Fig. 2. The eccentric I8 has pivoted thereto one end of a throw Suitable mechanism, hereinafter described or crank arm 84, and one end of the second part of the crank arm, that is, crank arm 84A is pivotally connected to a pivot 86 on the horizontally movable shaft 52. The crank arm is made of two

parts

84 and 84A coupled by a joint 88, for ease of assembly or disassembly.

A spur gear 90 of the same diameter as spur gear I5 is coupled to spur gear I6 in the same plane and rotates in the opposite direction to spur gear I6 and at the same rate of speed. Spur gear 90 is coupled to drive the shaft 62 in the opposite direction to movement of the shaft 52. A similar type of mechanism between spur gear 98 and shaft 62 is used as between spur gear I6 and shaft 52so that a detailed description of only one set of driving and coupling need be given as the same description and numbering of elements applies to both.

Hence, if the guide BI is to be adjusted so that the length of oscillation is to be changed the eccentric 18 on gear 98 is moved either closer to or farther from the center of the gear 90.

The guide B is attached to the horizontal big-ht portion 48 by screws so that the small end of the funnel 40 is aligned with an opening 92 in the bight portion and the guide BI is attached in an analogous manner so that the small opening of the funnel connects with opening 94 in the bight portion 55. Since the applique work may have the tapes meet at the center it is necessary to have one tape guide B higher than the other but the tape or binding which comes from the guides is applied to the surface of the fabric or work at an even level by virtue of the guide 23 on the presser foot 26'.

A description of the operation of my invention will serve to illustrate the function and cooperativeness of the elements constituting my invention:

The

tapes

34, 34 are hung on reels which are carried by the bracket 36 and the tapes are fed through funnel guides B and BI. I shall assume that the tapes are to have their side edges overlapping the body of the tape and this is performed when the tapes pass through the tunnels. A series of sewing needles 22 have thread T through their eyes and the work or fabric F is laid upon the base 32 0f the machine under the presser foot 26'. The eccentrics I8 on gears 76 and 953 are properly adjusted So that the guides Band BI oscillate the required distance. After the adjustments are completed the sewing machine is operated and as the rows of stitches are formed in a straight line they attach the undulatory or wavy tape 34 to the fabric F, see Figs. 14 and 15.

The undulations of the tapes 34 are brought about by the guides B and BI oscillating.

If different degrees of undulations are desired then the eccentrics may be moved to produce overlapping undulations, spaced undulations, single undulations by using only one cam and one guide, and even rick-rack may be used to be guided upon the fabric or work, see Figs. 14,15-

Although my invention has been described in considerable, detail, such description is intended as illustrative rather than limiting, since the inventionmay be variously embodied and the scope of the invention is to be determined as claimed.

, I claim as. my invention:

1. A sewing machine comprising stitch forming mechanism operable to form a plurality of rows of stitches, a drive shaft on said sewing machine. a worm gear mounted on said drive shaft,

a spur gear cooperatively engaging said worm gear mounted on a shaft, a second spur gear mounted on the same shaft as said first named spur gear, a third spur gear meshed with said second spur gear, an eccentric on each of said meshed spur gears, means to adjust each eccen-= tric, a connecting link having one end thereof ccnnected to each eccentric, a horizontally movable shaft connected to the other end of each connecting link, and brackets fixed to said movable shafts and carrying tape guides, said tape guides being movable with said brackets and said movable shafts.

2. A sewing machine comprising a stitch forming mechanism including a plurality of sewing needles, a presser foot having a needle opening and a tape guide, a plurality of brackets movable parallel to the common plane of said sewing needles, a funnel shaped tape guide detachably secured to each bracket, each of said brackets having a bore contiguous to the egress bore of said funnel shaped tape guide, and means to oscillate said brackets during the stitch forming operation.

3. A sewing machine comprising a stitch forming mechanism including a plurality of sewing needles, a presser foot having a needle opening and a tape guide, a plurality of brackets movable parallel to the common plane of said sewing needles, a funnel shaped tape guide detachably secured to each bracket, each of said brackets having a bore contiguous to the egress bore of said funnel shaped tape guide, and means for moving each of said brackets in opposite directions during the stitch forming operation.

e. A sewing machine comprising a stitch form ing mechanism including a plurality of sewing needles, a presser foot having a needle opening and a tape guide, a plurality of brackets movable parallel to the common plane of said sewing needles, a funnel shaped tape guide detachably secured to each bracket, each of said brackets havin a bore contiguous to the egress bore of said funnel shaped tape guide, means for oscillating said brackets during the stitch forming operation, and means to control the oscillatory movement of each bracket.

WALTER HARPHAM.

REFERENCES CITED The following references are of record in the file of this patent: