US2849720A

US2849720A - Anticurl device

Info

Publication number: US2849720A
Application number: US558683A
Authority: US
Inventors: Liebowitz Benjamin
Original assignee: Endsdown Co Inc
Current assignee: Endsdown Co Inc
Priority date: 1956-01-12
Filing date: 1956-01-12
Publication date: 1958-09-02
Anticipated expiration: 1975-09-02

Description

Sept. 2, 1958 B. LIEBOWITZ 2,849,720

ANTICURL DEVICE Filed Jan. 12, 1956 I 2 Sheets-Sheet 1 INVENTOR. 6e n a mi? L Qba 1- 2 Sheets-Sheet 2 BY Q7 B LIEBOWITZ ANTICURL DEVICE 6 5 9 l 2 1 m a J 0 e l i F a 9 1 2 m &

United States Patent O ANTICURL DEVICE Benjamin Liebowitz, Lewisboro, N.'Y., assignor to Endsdown Company, Inc New York, N. Application January 12, 1955, Serial No. 558,683

Claims. (Cl. 2-432) the anticurl device, but in almost all of .the disclosures the point of maximum tension in the rubber comes in the neighborhood of the crotch of the collar. This, of course, refers to anticurl devices placed in the edge position :of the collar, as shown in most of the figures of the drawings of these patents. However, as is shown in Fig. 7 of Reissue Patent No. 23,617, the anticurl device may also :be used in the diagonal position, and indeed it has been-found that there are many advantages in using the diagonal position. In this case, the point of maximum stretch would come in the neighborhood ofifthe collar-banding seam with the minimum stretch at the point.

It :has now been found that certain desirable efiects are achieved by lowering the point of maximum stretch to a region which lies in the middle third of the anticurl strip. In particular the desirable efiiect achieved is to cause the collar to lie straighter, that is, with less concavity than in the case where the point of maximum stretch lies closer to the band. In the regions close to the band, an anticurl strip. of this .character requires very littleif :any anticurl forces 'wheni't is placed in a diagonal position with the upper end of the strip well removed from the crotch of the collar. The reason for this is that there is very little tendency for the collar to curl in this area. When the strip is in the diagonal position, the curling which arises when wearing pressures are imposed on the collar is greatest in the central region of the strip and it is on that account that it is desirable to have this region also the region of maximum stretch in the rubber of the anticurl strip. Of course, this does not apply to anticurl strips which are placed in the edge of the collar or close to the edge and parallel thereto. In this latter case, it is still desirable to have a maximum tension in the region of the crotch.

A clearer understanding of the invention may be had by reference to the accompanying drawings, in which:

Figs. 1 and 2 are respectively plan and side views of an anticurl strip according to the present invention.

Fig. 3 is a diagram showing one manner in which the stretch may be distributed along the anticurl strip;

Fig. 4 is a diagram illustrating another manner in which the stretch may be distributed along the anticurl strip;

Fig. 5 is a fragmentary view of a collar including the anticurl strip of the invention;

Fig. 6 is a sectional view taken along line VI-VI of Fig. 5 in the direction of the arrows; and

ice

Fig. 7 is a view similar to Fig. 5 showing relationships between the anticurl device and collar used in determining where the point of maximum stretch should be located.

Referring now to the drawings, Figs. 1 and 2 show an anticurl device composed of an elongated flexible thin compression-resistant strip 10 which may be made of aplastic. An elongated elastomer 11 such as rubber is attached as 'by stitching in a permanently stretched condition to the plastic strip 10, the stretch in the rubber strip 11 being distributed therealong in a predetermined manner shown graphically in Fig. 3.

Referring to Fig. 3 it will be seen that the ends of the rubber strip '11 are indicated at 'the points A and B and along the length ofthe rubber strip 11 from the end A to theend B thereof, these ends also being indicated in Fig. '1, the stretch is distributed in the manner indicated by the curve '12. Thus, it will be seen that the stretch is .ahnost"O at the' erid'A and increases and reaches a maximum point in the middle third of the strip 11, the tension then decreasing to approximately 0 at the end B of the strip. Furthermore, it will be noted that along the middle third of the strip 11 the stretch as shown "by the curve12 is not constant and is in fact at a maximum .point approximately at the center of the strip 11.

'It is also possible in accordance with the present invention to distribute the 'stretch 'in the manner shown graphically in Fig. 4' from which it'will "be seen that the curve 12' of the distribution of the stretch in the rubber strip 1-1 increases from approximately 10 at the end A to a maximum along the m'iddl'e'third between the points C and D andthenthe stretch decreases to approximately 0 at the end B. While'the stretch. in Fig. 3 is curved considerably betw'eenthe points C [and D of the curve '12 which 'denote the middle third of the strip 11, it will be 'not ed that in Fig.4 this portion of .the curve is relatively flat, so that with the stretch distribution of Fig. 4 there is a :relatively, constant elongated portion of maximum stretch distributed along the middle third of the rubber strip 111.

As maybe seen from Fig. 5, as well as Fig. 6, the anticurl strip formed by members '1'0 and 11 is located in'a p'oc ket IS formed between the bottom ply 14 of the 'collartop 15 and a'stripo'f fabric "16 stitched at its side edges tothe bottomfpl'y 14 .at the inner face of the latter between "the-bottom ply i4 and the lining ply '17, this lining ply being located between the top ply 18 and the bottom ply 14 of the collartop 15. This collartop 15 is joined along the collar-banding seam 19 to the collar-band 20, and the crotch 21 of the collar is located at a distance L from the end of the pocket 13 which is adjacent the collar-banding seam 19. The anticurl device composed of thecompression-resistant flexible strip 10 and the stretched rubber strip 11 is located in and extendsalong the pocket 13 in the manner indicated in Figs. 5 and 6. The region of maximum tension along the middle third of the anticurl strip is shown in the shaded area in Fig. 5.

It is possible to write an approximate formula for the location or" the point of maximum stretch as related to the distance measured along the collar-banding seam from the upper end of the pocket to the crotch, and this formula is illustrated in Fig. 7. Thus, where the distance from the pocket to the crotch measured along the collarbanding seam is L and the length of the pocket in the collartop is equal to L the location of the region of maximum stretch shown in the shaded area of Fig. 7 from the collar-banding seam along the pocket is indicated by the distance L which is the distance from the collar-banding seam to the point of maximum tension. The formula for determining the distance L is 2. A collar which comprises a band portion and a collartop portion which is folded down along the foldline adjacent the band portion and which also comprises anticurlmeans located in the collartop portion extending for a predetermined distance in a diagonal direction from a region nearthe point of the collartop to a region near the foldline, said anticurl means comprising a thin, flexible compression-resistant -member and stretched elastomer member attached to said compression-resistant member, the stretch of said elastomer increasing from approximately near the point of the collar to a maxithe entire middle third of said predetermined distance and then decreasing to approximately 0 in the region near the band portion of the collar.

4. A collar comprising a collar-band and a collartop 2 2 5 portion joined to the collar band along a collar-band seam, 01' said collartop terminating at one end in a crotch at the L3: KL1v collar-banding seam and having at said end a collar point distant from said crotch, said collar comprlsing an anti where K 13 a constant on the order of umty although 1t curl means located in the collartop portion and extending may a from about to about for a predetermined distance in a diagonal direction from I clam: a region near the point of the collartop to a region near Collar. which. 9. a band pomon a the collar-band seam, said anticurl means comprising a coilartop pomc'n whlcil 1S foldedfdown along a.foldlm.e thin, flexible, compression-resistant member and a adjacent the band pfmwn and which 315.0 compns?s stretched elastomer member attached to the compressioncurl means located the collartfn Porno]? exiendmg for 15 resistant member, the stretch of said elastic member ina predetermined distance in a diagonal direction from a creasing from approximately 0 near the point of the collar region near the point of the collartop to a region near to a maximum and then decreasing to approximately 0 the foldline, said anticurl means comprising a thin flexible in the mgion near the conapbanding seam the distance plastic member and a stretched elastomer member atof the reoion of maximum stretch from i collar band tached to the plastic member, the stretch of said elastomer mg being equal to the distance of the end of the mcreasmg from, 0 F "i the. anticurl means adjacent said seam from said crotch multicollar to a maximum in a region in the middle third of vIflied by a constant approximately equal to said predetermmed distance and then decreasing to ap- A collar Comprising a collapband and a collartop proximately 0 in the region near the band portion of the portion joinad to the collapband along a collapband Conan seam, said collartop terminating at one end in a crotch at the collar-banding seam and having at said end a collar point distant from said crotch, said collar comprising an anticurl means located in the collartop portion and extending fora predetermined distance in a diagonal direction from. a region near the point of the collartop to a region near.the collar-band seam, said anticurl means comprising a thin, flexible, compression-resistant member and a stretched elastomer member attached to the compression-resistant member, the stretch of said elastic member increasing from approximately 0 near the point of the collar to a maximum and then decreasing to apmum in a region adjacent, the center of said predeterproximately 0 in the region near the collar-banding mined distance and then decreasing to approximately 0 in the region near the band portion of the collar.

3. A collar which comprises a band portion and a collartop portion which is folded down along a foldline adjacent the band portion and which also comprises anti scam, the distance of the region of maximum stretch from said collar-banding seam being equal to the distance of the end of the anticurl means adjacent said seam from said crotch multiplied by a constant ranging from about 0.75 to about 1.25.

curl means located in the collartop portion extending for a predetermined distance in a diagonal direction from a .7 Refere Cit d i the file of thi patent region near the point of the collartop toa region near the foldline, said anticurl means comprising a thin, flex- UNITED STATES PATENTS i ible compression-resistant member and a stretched lie-13,617 LiebOWitZ Jan. 27, 1953 elastomer member attached to said compression-resistant 2,183,242 LiebOWitZ Dec. 12, 1939 member, the stretch of said elastomer increasing from 1, bowitz June 17, 1952 approximately 0 near the point of the collar to a maxi- 2,601,036 LiebOWitZ June 17, 1952 mum which remains substantially constant along almost