US3404645A - Brim stitcher - Google Patents
Brim stitcher Download PDFInfo
- Publication number
- US3404645A US3404645A US502755A US50275565A US3404645A US 3404645 A US3404645 A US 3404645A US 502755 A US502755 A US 502755A US 50275565 A US50275565 A US 50275565A US 3404645 A US3404645 A US 3404645A
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- United States
- Prior art keywords
- brim
- guide
- sewing machine
- stitching
- hat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B33/00—Devices incorporated in sewing machines for supplying or removing the work
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2501/00—Wearing apparel
- D10B2501/04—Outerwear; Protective garments
- D10B2501/042—Headwear
Definitions
- ⁇ attachment provides synchronization with, but is independent of, the speed at which the sewing machine to which it is attached is stitching.
- the object of this invention is to provide an attachment which can be easily installed to operate in conjunction with a wide variety of conventional sewing machines to thereby extend the capabilities of these sewing machines to include hat brim stitching.
- Another object is to provide an attachment which can ⁇ be easily ⁇ adjusted once installed, thereby reducing the time required to stitch hat brims.
- Another object is to provide means for holding the hat while being sttched, thereby reducing the amount of handling required.
- FIG. 1 is a perspective view of the device attached to a conventional sewing machine
- FIG. 2 is'a plan view of the novel brim stitching at- H tachment; 'FIG; 3 is a' view taken on the line A--A of FIG. 2
- FIG; 41 is-a view taken on the line B-B of FIG. 2.
- the unit shown in FIG. 2 is attached to any conventional sewing machine to obtain the arrangement of FIG. 1.
- the unit is mounted upon a vbase lplate 17 which is secured to the sewing machine table 15 in any convenient m'anner.
- the location of the unit with relation to the feed dog and presser foot of the sewing machine is important.
- the brim stitcher unit With the base 17 of the unit parallel to the sewing machine table, the brim stitcher unit is positioned so that the brim guide 5 just misses the front of the feed dog and the guide extension 5a barely clears the right side of the presser foot.
- the guide extension 5a extending rearwardly from the junction of the legs of the brim guide will thus provide additional support l-aterally adjacent the presser foot to the edge of a hat brim during a stitching operation.
- the brim guide 5 can be adjusted relative to the support member 10 by means of adjusting 'bolts 20.
- a variable speed reducer 1 is coupled by a flexible coupling 3 to a lead screw Z having uniform pitch and mounted upon a U-shaped lead screw support 14.
- a U-shaped yoke 13, which is essentially a travelling nut, is in threaded engagement with the lead screw 2. As the variable speed reducer 1 drives the lead screw 2, the nut -13 travels along the threads of the lead screw.
- a drive arm 11 mounted upon the side of nut 13 is connected to a support member 10.
- the adjustable feed roll 4 is supported on the arm 11 by an adjusting pin 7 held in a universal clamp 8 and the brim guide 5 is mounted upon the support member 10 secured to arm 11.
- One portion of the hat brim is placed within the brim guide 5 as shown in FIGS. 2 and 3; another portion passes around the feed roller 4.
- the hat brim feeds continuously through the horizontally disposed brim guide 5 and is guided thereinto as it passes around the surface portion of roller 4 which faces, and is freely exposed, toward the operator or away from the guide 5.
- a conventional feed dog found on any sewing machine, not shown, but located in close proximity below the sewing machine needle and mounted upon the sewing table, causes the hat band to feed about the roller 4.
- the axis of roller 4 is spaced from the brim guide 5 and is oriented as to generally converge with the path of movement of the guide in the direction of its progressive movement so that the roller will urge the brim against the guide during such movement.
- the tr-avel of the nut 13 on lead screw 2 moves arm 11 attached to nut 13 laterally.
- Movement of arm 11 is transmitted by direct connection to the support member 10 upon which the brim guide 5 is attached.
- the hat brim As the hat brim is pulled around the roller 4 and directly therefrom through the guide 5 to the point of stitching it is also moved in a direction transverse to the direction of stitching by the sewing action, wh'ereby the sewing machine stitches a continuous spiral band upon the hat brim with the successive rows of stitching being uniformly spaced.
- the brim guide 5 controls the linear distance the brim moves to the right under the influence of roller 4 during one turn of the hat brim.
- the independently powered speed reducer unit 1 has an infinite number of speed adjustments ranging from zero to 10.r.p.m. which may be selected by manipulation of control 18. Accordingly, extremely precise adjustments can be made to assure for a desired spacing between successive rows of stitching that the rate of travel of .nut 13 has the necessary relationship to the particular sewing machine speed selected, which relationship is dependent upo the size of hat. w g
- Switch 28 carried by adjustable mounting 29, is electrically connected with both the sewing machine motor (not shown) and the variable speed reducer 1.
- the drive arm 11 trips the microswitch 28 when the nut reaches the limit of its length of travel.
- the point at which tripping occurs can be varied by selectively positioning its adjustable mount 29. Accordingly, a wide variety of brim widths can be accommodated.
- Toggle switch 31 is connected to the sewing machine motor (not shown) for activating and deactivating this motor in conventional manner.
- Toggle switch 32 is for energizing the speed reducer.
- the wiring is conventionally arranged such that the sewing machine motor is energized by closing switch 31 and that the speed reducer cannot r'un unless the sewing machine motor is turned on. Switch 32 is used to turn on the speed reducer once the sewing machine motor is energized.
- a half nut toggle 12 when operated. causes nut 13 to engage lead screw 2 for travel along the length of the lead screw.
- the drive arm 11 is rigidly mounted along the side of nut 13 to impart the travel rate of nut 13 to support mem- 'ber 10 and clamp 8.
- FIG. 4 shows drive arm 11 fixedly connected to support member 10.
- the feed roll adjusting pin 7 is mounted within the universal clamp 8.
- Socket head screw 19 adjusts the compression of the universal clamp.
- Feed roll 4 is mounted by passing the feed roll shaft 6 through the adjusting pin 7 as shown.
- Screw 19 passing through clamp 8 permits raising, lowering, or turning the adjusting shaft 7, to thereby place roll 4 in any desired angular position relative to the brim guide and to the table of the sewing machine.
- the brim guide is shaped with wide fiat upper and lower legs extending horizontally and parallel to the sewing machine table as in FIG. 3 to allow the hat brim to pass through freely yet make contact with a substantial area of the brim to prevent any longitudinal slippage of the brim as it is fed to the sewing machine.
- the brim guide 5 which is moved at a uniform rate by lead screw 2 allows the hat brim to move so that uniform spacing of the rows of stitching results.
- the brim guide 5 is adjustably mounted by brackets 9 and 16 on the support member which forms a rearward extension of the arm 11.
- One mounting bracket 9 is horizontally adjustable on member 10 in the direction of machine feed by means of screw 20 eXtendin-g through slots in the member 10.
- a second mounting bracket 16 is secured to the bracket 9 by a screw 23 which is vertically adjustable in a slot in bracket 9.
- the brim guide 5 is secured to bracket 16 in any conventional matter such as by brazing or silver soldering at 24.
- the brim guide 5 may be adjusted with respect to the table so that its legs are horizontally disposed and properly positioned with respect to the table and the feed dog of the machine.
- the operator places the unit upon a sewing machine table in proper relationship to the feed dog (not shown) and the needle of the sewing machine.
- a hat brim is placed through guide 5 and around roller 4.
- the hat brim is rotated by the feeding action of the feed dog (not shown). No power is transmitted by the feed roll 4. It rotates passively as the hat brim passes around its surface.
- the purpose of the feed roll is to control the angle at which the hat brim enters the brim guide 5.
- the feed roll must be adjusted so that the brim is urged to the right within brim Aguide 5, as seen in FIGURES 2 and 3, continually in full contact with the upper and lower legs of the brim guide 5.
- the lead screw 2 turns in a direction whereby the hat brim is fed toward the speed reducer 1.
- the spacing of successive rows of the stitching for any selected speed of sewing machine operation is controlled by adjusting the speed reducer. Wider spacing is obtained by increasing the speed of lead screw 2 by adjusting the variable speed reducer while closer spacing is obtained by decreasing this speed.
- the sewing needle iswthreaded. With nut A 13. i n driving engageme'nt with lead screw 2 and the hat'brim held in the desired position by the brim guide, switch 31 is closed. The sewing machine will start sewing. After the brim has made one complete turn the operator closes switch 32 which will start the speed reducer. No,fur ther manual operation is necessary-When the drive arm 11 feeds .to theflpre-selected.
- position 1(whiclrcanl be varied by the adjustable, mount 29) microswitch 328 trips,:'.thereby stopping both the sewing machine and the speedreducer.
- the' 4toggle 12 may be actuated to disengage nut 13 fromidrive screw 2 to permit the guide 5 and roller 4 on arm 11.to be repositioned for a successive sewing operation. Repositioning of arm 11 releases the tripped microswitch 28.
- a unitary attachment for guiding spiral stitching of a hat brim on a sewin-g machine comprisingfi (a) a base adapted to be secured to a sewing machine,
- drive means mounted on said base and including a support structure progressively movable relative to said base by operation of the drive means and in a direction transverse to the direction of stitching o the machine, x
- a brim guide secured to said support structurean having a portion engageable with the edge of a hat brim on the side thereof in the direction of said progressive movement of the structure relative to rsaid base to variably position the brim in accordance with such movement
- said brim guide comprises fiat legs arranged to be engageable, respectively, With opposite faces of the brim with a junction of said legs arranged to 'be engageable with the edge of the brim, said guide further including an extension projecting from said junction in the direction ofstitching to engage the edge of Vthe brim laterally adjacent the presser foot of the sewin g machine.
- the attachment as set form in 'claim 4 iiimdin'g means for adjustablyinounting the. roller on said ,support structure comprising: w p a (a) a universal clamp adjustably secured to said support structure; andlv i i I (b) an adjusting pin passing within the clan ap and having means for mountingsaid roller thereon.f
- said speed control means comprises:
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Description
Oct. 8, 1968 E. w. GERwlG 3,404,645
BRIM STITCHER Filed oc'z. 22, 1965 INVENTOR. E424 W GERw/G ATT/ZA/Ey United States Patent O `3,4o'4,645 f BRIM STITCHER 'Earl W. Gerwig, Westerville, Oho, assigilor to the United States ofgmerica asV represented by the Director, Defensel Supply. Agency Filed oct. 22, 1965, ser. No. 502,755 7 Claims. (Cl. 112-2) This invention relates to a sewing machine attachment which i especially adapted for stitching hat brims. The
`attachment provides synchronization with, but is independent of, the speed at which the sewing machine to which it is attached is stitching.
Prior art brim stitching attachments are rather complicated and require much time and skill to install. Further, these older attachments cannot be installed unless the sewing machine itself is substantially modified. The prior art equipment, even though incorporating some advancements, still requires the services of a s'killed operator. This invention, however, overcomes these difficulties.
The object of this invention is to provide an attachment which can be easily installed to operate in conjunction with a wide variety of conventional sewing machines to thereby extend the capabilities of these sewing machines to include hat brim stitching.
" It is 'another object of this invention to provide an attachment for use in conjunction with a conventional sewing machine which permits selecting and controlling the width of spacing between adjacent rows of stitching.
It is another object of this invention to provide an attachment for use in conjunction with a conventional sewing machine which permits correlating the width of spac- `ring between `adjacent rows of stitching with the speed of stitching of the sewing machine thus obtaining uniformly `spaced rows of stitching regardless of hat size when stitching hat brims.
Another object is to provide an attachment which can `be easily `adjusted once installed, thereby reducing the time required to stitch hat brims.
, Another object is to provide means for holding the hat while being sttched, thereby reducing the amount of handling required.
a, These and other objects of the present invention will become apparent from the following description taken in f conjunction'with the drawings in which:
` FIG. 1 is a perspective view of the device attached to a conventional sewing machine;
lFIG. 2 is'a plan view of the novel brim stitching at- H tachment; 'FIG; 3 is a' view taken on the line A--A of FIG. 2
showing the brim guide; and
FIG; 41is-a view taken on the line B-B of FIG. 2. The unitary brim stitching attachment according to ICC tween, and a rigid supporting structure movable by the worm drive and carrying both roller 4 and guide 5.
The unit shown in FIG. 2 is attached to any conventional sewing machine to obtain the arrangement of FIG. 1. The unit is mounted upon a vbase lplate 17 which is secured to the sewing machine table 15 in any convenient m'anner. The location of the unit with relation to the feed dog and presser foot of the sewing machine is important. With the base 17 of the unit parallel to the sewing machine table, the brim stitcher unit is positioned so that the brim guide 5 just misses the front of the feed dog and the guide extension 5a barely clears the right side of the presser foot. The guide extension 5a extending rearwardly from the junction of the legs of the brim guide will thus provide additional support l-aterally adjacent the presser foot to the edge of a hat brim during a stitching operation. The brim guide 5 can be adjusted relative to the support member 10 by means of adjusting 'bolts 20. When the brim guide 5 is in correct position in relation to the feed dog and presser foot of the sewing machine the sewing machine head can be tipped back without removing the brim stitcher from the sewing machine table. A variable speed reducer 1 is coupled by a flexible coupling 3 to a lead screw Z having uniform pitch and mounted upon a U-shaped lead screw support 14. A U-shaped yoke 13, which is essentially a travelling nut, is in threaded engagement with the lead screw 2. As the variable speed reducer 1 drives the lead screw 2, the nut -13 travels along the threads of the lead screw. A drive arm 11 mounted upon the side of nut 13 is connected to a support member 10. The adjustable feed roll 4 is supported on the arm 11 by an adjusting pin 7 held in a universal clamp 8 and the brim guide 5 is mounted upon the support member 10 secured to arm 11. One portion of the hat brim is placed within the brim guide 5 as shown in FIGS. 2 and 3; another portion passes around the feed roller 4.
The hat brim feeds continuously through the horizontally disposed brim guide 5 and is guided thereinto as it passes around the surface portion of roller 4 which faces, and is freely exposed, toward the operator or away from the guide 5. A conventional feed dog found on any sewing machine, not shown, but located in close proximity below the sewing machine needle and mounted upon the sewing table, causes the hat band to feed about the roller 4. The axis of roller 4 is spaced from the brim guide 5 and is oriented as to generally converge with the path of movement of the guide in the direction of its progressive movement so that the roller will urge the brim against the guide during such movement. As the hat brim feeds about roller 4, the tr-avel of the nut 13 on lead screw 2 moves arm 11 attached to nut 13 laterally. Movement of arm 11 is transmitted by direct connection to the support member 10 upon which the brim guide 5 is attached. As the hat brim is pulled around the roller 4 and directly therefrom through the guide 5 to the point of stitching it is also moved in a direction transverse to the direction of stitching by the sewing action, wh'ereby the sewing machine stitches a continuous spiral band upon the hat brim with the successive rows of stitching being uniformly spaced. The brim guide 5 controls the linear distance the brim moves to the right under the influence of roller 4 during one turn of the hat brim. i
The independently powered speed reducer unit 1 has an infinite number of speed adjustments ranging from zero to 10.r.p.m. which may be selected by manipulation of control 18. Accordingly, extremely precise adjustments can be made to assure for a desired spacing between successive rows of stitching that the rate of travel of .nut 13 has the necessary relationship to the particular sewing machine speed selected, which relationship is dependent upo the size of hat. w g
Switch 28, carried by adjustable mounting 29, is electrically connected with both the sewing machine motor (not shown) and the variable speed reducer 1. As the lead screw draws the nut 13 from left to right, the drive arm 11 trips the microswitch 28 when the nut reaches the limit of its length of travel. The point at which tripping occurs can be varied by selectively positioning its adjustable mount 29. Accordingly, a wide variety of brim widths can be accommodated. Toggle switch 31 is connected to the sewing machine motor (not shown) for activating and deactivating this motor in conventional manner. Toggle switch 32 is for energizing the speed reducer. The wiring is conventionally arranged such that the sewing machine motor is energized by closing switch 31 and that the speed reducer cannot r'un unless the sewing machine motor is turned on. Switch 32 is used to turn on the speed reducer once the sewing machine motor is energized.
A half nut toggle 12 when operated. causes nut 13 to engage lead screw 2 for travel along the length of the lead screw.
The drive arm 11 is rigidly mounted along the side of nut 13 to impart the travel rate of nut 13 to support mem- 'ber 10 and clamp 8. FIG. 4 shows drive arm 11 fixedly connected to support member 10. The feed roll adjusting pin 7 is mounted within the universal clamp 8. Socket head screw 19 adjusts the compression of the universal clamp. Feed roll 4 is mounted by passing the feed roll shaft 6 through the adjusting pin 7 as shown. Screw 19 passing through clamp 8 permits raising, lowering, or turning the adjusting shaft 7, to thereby place roll 4 in any desired angular position relative to the brim guide and to the table of the sewing machine.
The brim guide is shaped with wide fiat upper and lower legs extending horizontally and parallel to the sewing machine table as in FIG. 3 to allow the hat brim to pass through freely yet make contact with a substantial area of the brim to prevent any longitudinal slippage of the brim as it is fed to the sewing machine.
As the hat brim moves under the influence of the sewing action, the brim guide 5 which is moved at a uniform rate by lead screw 2 allows the hat brim to move so that uniform spacing of the rows of stitching results.
The brim guide 5 is adjustably mounted by brackets 9 and 16 on the support member which forms a rearward extension of the arm 11. One mounting bracket 9 is horizontally adjustable on member 10 in the direction of machine feed by means of screw 20 eXtendin-g through slots in the member 10. A second mounting bracket 16 is secured to the bracket 9 by a screw 23 which is vertically adjustable in a slot in bracket 9. The brim guide 5 is secured to bracket 16 in any conventional matter such as by brazing or silver soldering at 24. Thus the brim guide 5 may be adjusted with respect to the table so that its legs are horizontally disposed and properly positioned with respect to the table and the feed dog of the machine.
To operate this device the operator places the unit upon a sewing machine table in proper relationship to the feed dog (not shown) and the needle of the sewing machine. A hat brim is placed through guide 5 and around roller 4. The hat brim is rotated by the feeding action of the feed dog (not shown). No power is transmitted by the feed roll 4. It rotates passively as the hat brim passes around its surface. The purpose of the feed roll is to control the angle at which the hat brim enters the brim guide 5. The feed roll must be adjusted so that the brim is urged to the right within brim Aguide 5, as seen in FIGURES 2 and 3, continually in full contact with the upper and lower legs of the brim guide 5. The lead screw 2 turns in a direction whereby the hat brim is fed toward the speed reducer 1.
The spacing of successive rows of the stitching for any selected speed of sewing machine operation is controlled by adjusting the speed reducer. Wider spacing is obtained by increasing the speed of lead screw 2 by adjusting the variable speed reducer while closer spacing is obtained by decreasing this speed. After spacing of the stitching is selected the sewing needle iswthreaded. With nut A 13. i n driving engageme'nt with lead screw 2 and the hat'brim held in the desired position by the brim guide, switch 31 is closed. The sewing machine will start sewing. After the brim has made one complete turn the operator closes switch 32 which will start the speed reducer. No,fur ther manual operation is necessary-When the drive arm 11 feeds .to theflpre-selected. position 1(whiclrcanl be varied by the adjustable, mount 29) microswitch 328 trips,:'.thereby stopping both the sewing machine and the speedreducer. After opening switches A'31 and 32, the' 4toggle 12 may be actuated to disengage nut 13 fromidrive screw 2 to permit the guide 5 and roller 4 on arm 11.to be repositioned for a successive sewing operation. Repositioning of arm 11 releases the tripped microswitch 28.
Iclaim:
1. A unitary attachment for guiding spiral stitching of a hat brim on a sewin-g machine comprisingfi (a) a base adapted to be secured to a sewing machine,
(b) drive means mounted on said base and including a support structure progressively movable relative to said base by operation of the drive means and in a direction transverse to the direction of stitching o the machine, x
(c) a brim guide secured to said support structurean having a portion engageable with the edge of a hat brim on the side thereof in the direction of said progressive movement of the structure relative to rsaid base to variably position the brim in accordance with such movement,
(d) a roller carried by said support structure and havingI a freely exposed surface portion facing away from said guide, said roller having an aXis of rotation which remains fiXed with respect to said support structure during a spiral stitching operation,isaid axis being substantially spaced from the brim engaging portion of the brim guide and so oriented as to generally converge with the path of movement Of the brim guide in the direction of its progressive movement, said surface portion being positioned to provide rolling engagement with successive portions of the brim as they move therearound directly to the point of stitching and to urge the brim against the guide in the direction of said progressive movement during a spiral stitching operation,
(e) speed control means included in lsaid drive means for adjusting the rate of movement of said support structure relative to the stitching rate of the sewing machine to permit substantially uniform Spacing of the spiral stitching on a wide range of brim sizes.
2. The attachment'as set forth in claim 1 Wherein said brim guide comprises fiat legs arranged to be engageable, respectively, With opposite faces of the brim with a junction of said legs arranged to 'be engageable with the edge of the brim, said guide further including an extension projecting from said junction in the direction ofstitching to engage the edge of Vthe brim laterally adjacent the presser foot of the sewin g machine.
3. The attachment as `set forth in claim 1 including universal clamping means for adjusting the'angle'of said roller relative to said brim guide and to table'of the sewing machine. i
4. The attachment as set forth in claim 1 'Wherein said brim guide comprises a U-shaped member,l the lefgsl'ofsaid member being horizontally disposed 'parallel toithe sewing machine table. p i
s. The attachment as set form in 'claim 4 iiimdin'g means for adjustablyinounting the. roller on said ,support structure comprising: w p a (a) a universal clamp adjustably secured to said support structure; andlv i i I (b) an adjusting pin passing within the clan ap and having means for mountingsaid roller thereon.f
6. The attachment as set forth in claim 4 Wherein said speed control means comprises:
(a) a lead screW-housing',
(b) a lead screw mounted in said housing;
(c) a yoke member having internal threads, said yoke adapted to be meshed with said lead screw and connected to said drive member; and
(d) a variable speed reducer driving said lead screW.
7. The attachmcnt as set forth in claim 6 wherein said support structure comprses:
an arm, one end of which is mounted on said yoke, the
other end adjustably mounting said roller and a support member, said support member extending from said arm and including means for adjustably mounting said brim guide in a position parallel to the sewing machine table.
References Cited UNITED STATES PATENTS Davis 112-2 Weiss 112--2 Denemark 112-2 X English 112-2 Shutzer 112-153 X Ogden 112-2 HERBERT F. ROSS, Primary Examiner.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US502755A US3404645A (en) | 1965-10-22 | 1965-10-22 | Brim stitcher |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US502755A US3404645A (en) | 1965-10-22 | 1965-10-22 | Brim stitcher |
Publications (1)
Publication Number | Publication Date |
---|---|
US3404645A true US3404645A (en) | 1968-10-08 |
Family
ID=23999273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US502755A Expired - Lifetime US3404645A (en) | 1965-10-22 | 1965-10-22 | Brim stitcher |
Country Status (1)
Country | Link |
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US (1) | US3404645A (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US996467A (en) * | 1910-06-02 | 1911-06-27 | Solomon Davis | Sewing-machine attachment. |
US1301528A (en) * | 1915-10-11 | 1919-04-22 | Cornelius Weiss | Sewing-machine attachment. |
US1462168A (en) * | 1921-06-23 | 1923-07-17 | Denemark Jacob | Stitching mechanism for hat brims |
US1463116A (en) * | 1921-02-26 | 1923-07-24 | Cummings Machine Works | Sewing-machine attachment for spiral stitching |
US1844411A (en) * | 1926-02-04 | 1932-02-09 | Shutzer Arthur | Sewing machine attachment |
US2521085A (en) * | 1947-09-11 | 1950-09-05 | Floyd H Ogden | Machine for sewing buffing wheels |
-
1965
- 1965-10-22 US US502755A patent/US3404645A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US996467A (en) * | 1910-06-02 | 1911-06-27 | Solomon Davis | Sewing-machine attachment. |
US1301528A (en) * | 1915-10-11 | 1919-04-22 | Cornelius Weiss | Sewing-machine attachment. |
US1463116A (en) * | 1921-02-26 | 1923-07-24 | Cummings Machine Works | Sewing-machine attachment for spiral stitching |
US1462168A (en) * | 1921-06-23 | 1923-07-17 | Denemark Jacob | Stitching mechanism for hat brims |
US1844411A (en) * | 1926-02-04 | 1932-02-09 | Shutzer Arthur | Sewing machine attachment |
US2521085A (en) * | 1947-09-11 | 1950-09-05 | Floyd H Ogden | Machine for sewing buffing wheels |
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