US3559602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking device for skip stitch mechanisms
Assignee: Singer Co
•
Filing: 1969-08-07
•
Granted: 1971-02-02
•
Expires: 1989-08-07
Abstract
Abstract A skipstitch mechanism for household sewing machines is disclosed in which a clutch device is provided for interrupting the needle bar reciprocation so that stitches may be skipped to form extremely long stitches as for basting or the like. The skipstitching is effected by the operation of the zigzagstitching mechanism of the sewing machine in one position of adjustment of the zigzag control means. A locking device is disclosed for holding the zigzag control means in position to effect skipstitching while the needle bar reciprocation is interrupted by the skipstitch means.
Inventors
- 👤 Stephen J Illes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:57
CPC Classifications
D; D05; D05B; D05B81/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
140 words
A skipstitch mechanism in a sewing machine having a frame, actuating mechanism carried in said frame, a needle bar carried by said frame for endwise reciprocation and for lateral jogging movement for the formation of stitches, means driven by said actuating mechanism for imparting endwise reciprocation to said needle bar, mechanism driven by said actuating mechanism for imparting lateral jogging movement to said needle bar including a manually influenced zigzag control regulator, and interrupting means for said needle bar reciprocating means effective only during lateral jogging movement of said needle bar in a predetermined position of said manually influenced zigzag control regulator, interengaging locking means on said zigzag control regulator and on said sewing machine frame for preventing movement of said zigzag control regulator out of said predetermined position for influencing skipstitching during interruption of said needle bar reciprocating means.
Claim 2
Dependent Claim
140 words
A skipstitch mechanism in a sewing machine having a frame, actuating mechanism carried in said frame, a needle bar carried by said frame for endwise reciprocation and for lateral jogging movement for the formation of stitches, means driven by said actuating mechanism for imparting endwise reciprocation to said needle bar, mechanism driven by said actuating mechanism for imparting lateral jogging movement to said needle bar including a manually influenced zigzag control regulator, and interrupting means for said needle bar reciprocating means effective only during lateral jogging movement of said needle bar in a predetermined position of said manually influenced zigzag control regulator, interengaging locking means on said zigzag control regulator and on said sewing machine frame for preventing movement of said zigzag control regulator out of said predetermined position for influencing skipstitching during interruption of said needle bar reciprocating means.
Claim 3
Dependent Claim
102 words
A skipstitch mechanism as set forth in claim 1 in which said zigzag control regulator comprises a bight control regulator for regulating the length of zigzag stitching and in which the means for interrupting said needle bar reciprocation compRises mechanism for jogging the needle bar laterally beyond a predetermined range of laterally jogged positions in which it is possible for stitches to be formed, and in which said interengaging locking means is effective to detain said bight control regulator in a position corresponding to maximum width of zigzag during lateral jogging movement of said needle bar beyond said predetermined range of positions.
Claim 4
Dependent Claim
62 words
A skipstitch mechanism as set forth in claim 2 in which said needle bar is provided with a needle jogging drive link formed with a projection, a bar carried by said sewing machine frame and arranged transversely of said drive link, said transverse bar being formed with a latch notch accommodating said drive link projection during interruption of said needle bar reciprocation.
References Cited (Backward Citations)
US3433190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |