US2781010A - Necktie sewing machines - Google Patents

Description

Feb. 12, 1957 v. M. NEWMAN NECKTIE SEWING MACHINES INVENTOR.

lilllllllllllll A Filed Oct. ll, 1955 Feb., 12, 1957 v, M. NEWMAN NECKTIE SEWING MACHINES Filed Oct. 11, 1955 INVENTOR. h, m1 BY A7V-cava? .wr ,r ,v Q \\\\\\\\\\.F\\\\\\\ mm1 or ...M ::LT mhz. www. Lgf-LNVW www@ WM/rohr? Ail: Y Y S n 1s Feb. 12, 1957 v. M. NEWMAN ANECKTIEI SEWING MACHINES 3 Sheets-SheekI 3 Filed 001'.. l1, 1955 lull! ull.

INVENTOR. )2, MM, I

United States Patent NECKTIE SEWING MACHINES Victor M. Newman, New York, N. Y.

Application October 11, 1955, Serial No. 539,906

4 Claims. (Cl. i12-174) This invention relates to necktie sewing machines and is an improvement on the machine described in my United States Patent No. 2,608,170 of August 26, 1952.

In the above mentioned patent, l disclosed a method and machine for use in necktie construction which employed normally aligned platforms over which the necktie fabric and its lining were prelminarily deposited in predetermined and proper relationship, the platforms being arranged to close one over the other so as to fold the fabric. Formed or disposed on the platforms were corrugating strips for crimping the fabric and lining and means were provided for sewing through the corrugations to produce a slip stitch.

The machine of the instant invention improves over the prior machine in that the fabric and lining are better maintained in their predetermined position as the swinging of the platforms fold the fabric to the position where its edges are crimped and then sewn. Superior crimping teeth are also provided whereby crimping of the fabric is facilitated and the action of the needle in sewing through the corrugations is improved.

Improved means for driving and mounting the needle is also shown herein. In addition, improved means for forming a small stitch in the lining but not in the fabric is disclosed, such a stitch being considered desirable in the industry as more securely fastening the thread to the lining.

Other advantages of the invention will be apparent from the following description and drawings wherein:

Figure l is a top plan view of the machine in the open position;

Figure 2 is a similar view thereof in the closed position;

Figure 3 is a front elevational view thereof in the closed position;

Figure 4 is an enlarged cross-sectional view as taken along the line 4 4 of Figure 2;

Figure 5 is an enlarged cross-sectional view as taken along the line 5-5 of Figure l;

Figure 6 is an enlarged, fragmentary, transverse crosssectional view of the machine in the closed position with the fabric and lining crimped between the upper and lower platforms of the machine;

Figure 7 is a cross-sectional view as taken along the line 7--7 of Figure 6;

Figure 8 is a cross-sectional view as taken along the line 8-8 of Figure 1;

Figure 9 is an enlarged cross-sectional view as taken along the line 6 6 of Figure l;

Figure l0 is a fragmentary top plan view of any one of the corrugating strips;

Figure 11 is an enlarged fragmentary view of the needle driving wheel and including the needle locking mechanism; and

Figure 12 is a cross-sectional view as taken along the line 12-12 of Figure 11.

The machine comprises the platforms 20 and 2l which are hinged at 22 so that the platforms, which are normally horizontally aligned, become superimposed as noted in Figures 2 and 3 by swinging of the platform 20 about the hinges 22. In an actual operating embodiment, and for purposes which will hereinafter be made clear, the platforms 2t) and 21 are quite heavy, those actually used weighing in the neighborhood of thirty pounds. It may be noted that in such embodiment the length of upper platform 20 was forty-two inches while that the lower platform was sixty inches, both being fabricated of 5A, steel. Of course, these dimensions and details are purely representative. The additional length of lower platform 21 serves as an extension or supporting table. ln order to facilitate the manual swinging of platform 20 over platform 21, a handle 23 is provided. It will be understood that this handle may assume any desired form and in fact, may be dispensed with if motor actuation of the platform 20 is employed.

Platform 20 is provided with three crimping strips 24, 25 and 26. These crimping strips are provided with teeth 27 which form corrugations or crimps in the necktie fabric and lining. They are shown as being separate strips in order to afford individual adjustment so as to accommodate neckties of somewhat varying shapes. Accord ingly, the strips 24 and 26 are bolted down to platform 2G by means of bolts 28 which may be tightened in slots 29. The center strip 25 need not be adjustable because it normally does not deviate from its position as shown.

Opposing, stationary, lower platform 2i is likewise formed with three strips 30, 31 and 32. These are disposed Aso that the teeth 27 thereof are complementary to the teeth of the upper strips 24 to 26. The specic nature of the teeth engagement will be later described. At any rate, suice it here to note that the lining is deposited over the strips 30 to 32 and the fabric is disposed over all of the strips, i. e., over the strips of both the upper platform 20 and lower platform 21. When platform 20 is swung over so as to rest upon platform 21, the teeth of the respective and opposing strips will intermesh and form both corrugations in the fabric and lining as well as a substantially continuous needle path through which the needle may travel. End strips 36 and 32 of the lower platforms 21 are likewise adjustable as above mentioned so as to provide satisfactory mating with the upper strips.

In Figure l0 is shown an enlarged view of the toothed portions of the strips. Thus, the strips are formed with peripheral concave scallops or slot formations 35 to accommodate impaling needles 36 of the opposite strip. The function of such impaling needles is to secure and stabilize the fabric and lining on the platforms as initially set down. It will be recognized that the lining L is first set in place over the lower strips 3) to 32 and that the fabric is set down over both sets of strips, all as described in my previous Patent No. 2,608,170. ln order to maintain the fabric and lining in position as the platform 20 is swung over the platform 2l, the fabric and lining are pressed down slightly over the impaling needles so as to discourage accidental 'shifting or falling as the pivoting of the upper platform 2o is accomplished. It is not necessary to employ impaling needles 35 extensively, or one for each tooth, but they may be merely placed at spaced points, i. e., every fourth tooth or so. Pursuant to this invention, further fabric and lining stabilizing means are provided in the form of rough surfaced sponge rubber strips 37 which are disposed on the upper surface of each platform between the strips and the hinge edge thereof, and on the lower platform between the strips and the free edge thereof. Such rubber strips function as frictional retaining surfaces holding the fabric against lsliding or shifting while it is being folded along its longitudinal aXis as the upper platform 2t) is swung.

As for the teeth 27, it'will'be"observedd-rvFigure` l()v centrally b'et-tt/een-tw'oteeth' of the lowerY strips? indi-V cated inFignre-, However,- siiice thedistaneelsfbetvveen the teeth are greater' than their widths, i.ei`,5abor{t twice as great, the inteirne'shed'tc'cth are spaced from each other although the fabric andlining are stillconstrained'v to assume the crimpedtshape asillustrated in Figure 7.

v lt will be observed that the spacing between the intermeshed teeth is substantially the same'a's Vthe width of the teeth themselves.V This' caises the fabric and lining as illustrated in Figure' 7, to assume-an inclined-conlighr'ation between the *inte'rmeshed' teeth.- Itis found thatc'ri ping of the fabric isrendered easier by such aV tooth-arrangement and the' needle also goes through the corrugations or crimps more` easily as willebef'noted; Each tooth 27 is'rectangular and'is'fo'rrnedwithan upwardly open transverse slot di? acrossthe top face thereof. ltvwillbe'recog nized by those slrilledfin'A the arti that when the teeth are intermeshed, all the slots ill forni; an aligned needle path through which an clongatedne'edie is driven-for the purposo of producing the recpre'dr` stitching of the fabric and lining. The form' and'function of the elongated needle 4f. is conventional and well understood. As was set forth in my above mentioned PatentNo'.- 27668,l'70, it is of resilient steel so as tort'ra'vel a b'cntpath but suiciently sturdy to be driven through'such path without buckling. The'means for actuating the needle may be Conventional,

Y employing mechanism such as described in Vmy Patent No.

2,522,582, dated September i9, i950. in fact,the needle may be hand driven. However, pursuant to the instant invention, an improved form of needle: actuatingvdevice is disclosed.

"the means for actuating the elongated needle 41 comprises essential mechanism largely duplicating that shown in my above mentioned prior Patent No. 2,522,582. Thus, a stationary ooter housing 42 encloses a rotatable wheel d3, the underside of housing 42-havng an annular central peripheral groove whichseats the needle. Wheel 43 is' driven by means of pulley 44 actuated by belt 45, driven by motor 46. Improved means for mounting or securing the needle 4l to the wheel 43 is disclosed, such improved means comprising a connecting member 47 which is secured as by pivot bolt 48V to the wheel 43. Connecting member 47 comprises arectangular piece of steel having a cutout tlon its underside which receives the loop or rear end of the needle, the' loop being in a horizontal plane. However, the particular connection of the loop rear end of the needle to the connecting member -i is of no particular importance, the disclosed method providing for facilitated connection and release of the needle to the connecting member. Connecting member 47 travels, of course, with wheel 43 and in the fully extended position of the needle is at the top of wheel 43 as illustrated in Figure 3. When in such position, pivot 48 permits the member 417 to be swung outwardly in a horizontal plane whereby its underside may be made accessible for removing'or inserting 'the needle rear end.

A-pivoted latch 55 is connected to the stationary housing 42 and serves as a cover or door whereby the connecting member 47 may be accessible when the needle is in its fully extended position. At this time, the latch 55 may be raised upwardly on its pivot 56 so as to expose the connecting member 47 and permit it torbe swung horizontally outwardly for replacing the needle when required.

It will be understood that when the motor 46 is energized, it will drive belt 45, pulley 44, and wheel 43 so as to actuatefthe needle 4l. lt is necessary, however, to provide a limiton the actuation of the needle in each direction since otherwise it would obviously become damaged. This I accomplish by employing a post member 57 which is connected to the pulley 44 and which may actually serve as a handle type of actuating mechanism in head 5S which is arranged to be intercepted by the sta--V tionary stop 59 connected to the frame of the machine'.

' When the wheel 43 travels clockwise, it serves to extendk the needle 4l to its fullestextent as illustrated in Figure 3. When the needle 4l has reached its fullest extent, the head 53 is intercepted by the stop 59 and the pulley may no longer turn: Atthistirne,v the beltdwillsimply slip` in the pulley. Of course, however, alternative stop meansfor the pulley may be employed Vsuch as an electric switch as will be well understood;

When the needle itl. is retracted, i.. e., after the tie has been sewn, the head 5S" will' strik'e'tlieL/'stop 59 on its op posite side as illustrated in Figure l. These two posi tions thus constitute both extreme positions of the needle.

Means are also provided to initially guide the needle di. into theneedle path.A Such means comprisea pivoted guide 66 comprising an upperApla-tef pivoted to a lower plate 62, the upper 61 having a' groove 63 formed the underside thereofland in whichthe needle rests at alltimes. ln-other words,-in normal operation, the needle 4i travels only so far rearwardly as still tobe retained in the slot '53 while, ofcourse, in. theextended position e'.V rear portion thereof is maintained infslot 63. Slot 63 is disposed immediately adg'acentthc' needle path as formed by the'first toothV so that the needle is'properly directed into the needle path.

Afurther feature of the instant invention is meansfor providing a small stitch in the'lining Lwhichis not formed in the fabric. it will be understood that lordinarily all the stitches go through'both ythe lining and the fabric but thetrade'con'siders it -desirable'to apply. one or more small stitches' in the lining itself whichV `does not penetrate the fabric. This `serves to stabilize the position `ofthe lining while giving it freedom of movement in the sewn tie. Suchrmeansltakes `theforrn of a foldable member' 65 comprising a stationary plate 66' and a swingablez plate 67, member 65 following at the end of the toothedV Ystrips so that the needle reaches the `member 65' after it has passed `through the needle slotsVV 4.1i ofthe teeth. Plate, 66 is bolted to theV outwardly extending portion. ofv lower platform 2 as illustratedin'Figure l. lt is provided with an upwardly projecting rib 69, the extreme outer end 69a ofV which is just' slightly below `the needle path. Plate 66 Vis pivoted at 7! to swingable' luppery platte 67. Plate 67 is formed withaV slot 71 designed toreceiveribl.

As illustrated in Figures l and 4, the lining L isi initially disposed overVv lower platef 66+; thel fabric not yethaving been applied to the machine. Upper Vplate 67 is then swung-over onpl'ate 66 so that rib'forms' a bight 73:V

in the lining L as illustrated in Figure 4. Thereafter, the

fabric is setin lplace oven the toothed strips and theA impaling `needles as set forttlrin-niy prior Patent No. 2,608,- 170. Whenthe-needle isactu-atedto se'w thefabr-ic and lining as will hereinafteri be -set'Y forth, thev needle` end travels past the slotsorl recesses 4G of-theteeth ofthe last strips 26 and 32`andlpenetra'testhrough -thebight-7-3' outwardly beyond the now superimposed plates 66f and 67 as illustrated in Figure 2. This forms a small stitch Vin the lining but not-.in the fabric. i'

Although the operation of the machine shouldbe evident from'the above' description, abnief summary thereof will now be set forth. i

With the machine in the open position shown in vFigure 1 and the needle 41 retraced to its fully rearward posiarancio 30 to 32. Handle 23 is then lifted by the operator and the entire platform 2i) is swung about the hinges 22 so that it rests upon the lower ilatform 21 and all the teeth intermesh in the manner above described. It is most important that the fabric as well as the lining be prevented from creasing or distorting during this process inasmuch as the fabric should be folded along the longitudinal axis thereof whereby its out edges become substantially coincident, superimposed, and in a position to be sewn together by the aligned needle path formed by the meshing teeth. The impaling needles 35 may be effective in maintaining the fabric in proper disposition during the folding thereof, but the rubber layers or strips 37 contribute to the importance of this objective since they frictionally deter the fabric and lining from sliding or shifting on the mechanism.

As the platform 29 is caused to :overlie the platform 2i, the weight thereof in conjunction with the teeth 27 form crimps in the fabric as illustrated in Figure 7 at the same time, all the slots 40 become aligned in a substantially continuous, somewhat curved needle path. The motor 46 is then energized in a forward direction and the needle will be driven through the needle path as well as through all the crimps or corrugations as illustrated in Figures 3, 6 and 7. Of course, the needle will have been initially threaded with thread T, the end of which is grasped or otherwise retained after the needle has sewn through the complete fabric and lining and before the needle is returned to its retracted position.

As the needle is returned to retracted position by changing the direction of rotation of motor 46, the thread tends to stayin place since itis held by the fabric through the stitches formed therein but it can be grasped in any event so that the needle may return While leaving stitches formed in the fabric and lining. The upper platform 20 is then swung back whereupon the stitched tie and lining may simply be picked off the lower platform, the thread being broken so as to release the stitched tie. Thereafter another tie and lining will be set in place as vwill be evident.

There has been shown what is now considered a prefer-red embodiment of the invention but it is obvious that numerous changes and omissions may be made without departing from its spirit.

What is claimed is:

l. In a sewing mechanism comprising a pair of engageable, normally horizontal platforms each having opposed sets of teeth for crimping fabric when engaged by superimposing the platforms with lthe fabric between the teeth, the provision of rubber stripping on the upper surfaces of at least one of said platforms for frictionally engaging the fabric and preventing its slippage from a predetermined position relative to said platforms while said platforms are being superimposed.

2. A dev-ice according to claim 1 and wherein said rubber stripping is disposed between both sets of teeth when the platforms are in their normally honizontal position, and further rubber stripping disposed on at least one platform between the set of teeth thereof and the outer edge 4of the platform.

3. In sewing mechanism comprising la driven, elongated needle and a pair of engageable, Inormally horizontal platforms each having elongated opposed sets of teeth for crimping fabric and lining when engaged by superimposing the platforms with the fabric and lining between the teeth, the provision of means for sewing a stitch in the lining and not the fabric, sa-id means comprising a plate for crimping the lining alone and forming a raised corrugation therein following the end of the opposed sets of teeth and in the path of movement of said elongated needle.

4. A device according to claim 3 and wherein said means comprises a lower plate, a vertical rib formed on said plate, an upper plate pivoted to said lower plate and having a slot adapted to receive said vertical rib, said plates being adapted to have the lining disposed between them whereby the said rib when received by said slot forms a bight in the lining.

References Cited in the le of this patent UNITED STATES PATENTS 2,379,733 Marek my 1, 1943 2,522,582 Newman Feb. l0, 1949 2,678,618 Newman Mar. 28, 1950

Images