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US3752093A Expired / Lapsed US ⏱️ 0.0 years remaining

Buttonhole gauging guide attachment especially for use with domestic sewing machines

Assignee: Individual
•
Filing: 1971-07-14
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Granted: 1973-08-14
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Expires: 1991-07-14
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Abstract

Abstract A buttonhole gauging guide device is herein provided which is particularly adapted for use with domestic sewing machines. An Lshaped base member presents two legs extending mutually perpendicular with respect to each other. A first leg is provided with a slidable gauging arm which is movable toward the second leg and is supported to maintain parallel relationship therewith. The gauging arm is formed with a clamping portion extending in the plane of the second leg. The arm is further provided with an indicator projection which cooperates with an indicator marking on the base member to display, to a sewing machine operator, the necessary buttonhole length for a button disposed between the arm and the L-shaped base. The slidable gauging member may be spring biased toward the second leg of the base. The first leg may be formed with a raised track-like portion which may be of a hollow configuration to slidably support a guiding member. A threaded fasteneing means may be inserted through an aperture formed in the gauging arm to connect the gauging arm with the aforementioned guiding member supported within the raised tracklike portion of the base. The second leg of the base may be formed with an elongated slot for adjustably mounting the overall device to virtually any existing, conventional, domestic sewing machine.

Inventors

  • 👤 K Loeffler

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 16:25
CPC Classifications
D; D05; D05B; D05B3/00; D05B3/24; D10; D10B; D10B2501/00; D10B2501/06; D10B2501/062

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 323 words
A buttonhole gauging and guiding device adapted for use with a domestic sewing machine having a needle, said device comprising a generally L-shaped base having first and second leg portions disposed at right angles to each other; said first leg portion having a straight material guiding side thereon engagable by the material in which a buttonhole is to be made; said second leg having a slot therein, means extending through said slot and into engagement with a stationary part of a sewing machine for securing said base on the sewing machine in a selected location with said material guiding side of said first leg spaced a selected distance from the needle of the sewing machine; a gauging arm slidably mounted on said first leg of the base and having a button contacting edge thereon extending parallel to and spaced from a complementary button contacting edge of the second leg of the base; said gauging arm being movable toward said second leg into a position wherein said complementary button contacting edges engage the opposite sides of a button designed to be passed through the buttonhole to be made; and indicating means located on said gauging arm and base adjacent said material guiding-side of the first leg; said indicating means being spaced apart a distance exceeding the distance between said complementary button contacting edges of said gauging arm and base to indicate the length of a buttonhole of suitable size to receive the button, said first leg having a channel therein, said gauging arm having a portion thereof embracing a said channel in the first leg, a holding member being located in said channel and movable longitudinally of the first leg, and fastening means carried by said portioN of the gauging arm engagable with said holding member to secure said gauging arm in position with the button contacting edge of the arm spaced a fixed distance from the button contacting edge of said second leg.
Claim 2
Dependent Claim 323 words
A buttonhole gauging and guiding device adapted for use with a domestic sewing machine having a needle, said device comprising a generally L-shaped base having first and second leg portions disposed at right angles to each other; said first leg portion having a straight material guiding side thereon engagable by the material in which a buttonhole is to be made; said second leg having a slot therein, means extending through said slot and into engagement with a stationary part of a sewing machine for securing said base on the sewing machine in a selected location with said material guiding side of said first leg spaced a selected distance from the needle of the sewing machine; a gauging arm slidably mounted on said first leg of the base and having a button contacting edge thereon extending parallel to and spaced from a complementary button contacting edge of the second leg of the base; said gauging arm being movable toward said second leg into a position wherein said complementary button contacting edges engage the opposite sides of a button designed to be passed through the buttonhole to be made; and indicating means located on said gauging arm and base adjacent said material guiding-side of the first leg; said indicating means being spaced apart a distance exceeding the distance between said complementary button contacting edges of said gauging arm and base to indicate the length of a buttonhole of suitable size to receive the button, said first leg having a channel therein, said gauging arm having a portion thereof embracing a said channel in the first leg, a holding member being located in said channel and movable longitudinally of the first leg, and fastening means carried by said portioN of the gauging arm engagable with said holding member to secure said gauging arm in position with the button contacting edge of the arm spaced a fixed distance from the button contacting edge of said second leg.
Claim 3
Dependent Claim 23 words
An apparatus according to claim 1 wherein said holding member is spring biased toward said second leg portion of said L-shaped base member.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-08-13 1977-02-12 1977-08-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-08-13 1981-02-12 1981-08-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-08-13 1985-02-12 1985-08-14 $7700.00 Window Closed / Lapsed

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