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US3552336A Expired / Lapsed US ⏱️ 0.0 years remaining

Automatic setting and sewing of pocket pieces to garments

Assignee: Singer Co
•
Filing: 1969-05-26
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Granted: 1971-01-05
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Expires: 1989-05-26
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Abstract

Abstract This disclosure relates to a method and apparatus for automatically setting and sewing a pocket piece to a garment wherein the pocket is loaded into a clamp of a fixture in which the pocket shape is set and a sewing margin established in a shape corresponding to a template connected to the frame carrying the fixture. Pneumatic controls permit the fixture to be operated in a step fashion permitting the pocket piece to be set and subsequently sewn to the garment along the margin. If the fabric and pocket piece are patterned, the pneumatic controls can be operated to permit alignment of the garment with respect to the pocket piece. In addition, a dart guide is provided to prevent flagging at the corners of the pocket.

Inventors

  • 👤 Robert C Brandriff
  • 👤 Walter F Chapman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 10:15
CPC Classifications
D; D05; D05B; D05B39/00; D05D; D05D2209/00; D05D2209/02

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 151 words
A method of automatically setting and sewing a pocket piece to a garment lying flat on a work support comprising the steps of: a. placing the pocket piece in a clamp raised above the garment and having a split expandable and retractable margin forming plate in expanded position; b. folding the edges of the pocket piece downwardly about the expanded margin forming plate by a retractable folding means; c. lowering the folded pocket piece within the clamp closely adjacent and substantially parallel to the garment for the purpose of aligning the pattern between said pocket piece and said garment; d. placing the folded pocket piece within the clamp upon the garment with the folded edges adjacent said garment; e. retracting the folding means; f. establishing a sewing margin in said clamp by retracting the margin forming plate; and g. sewing the pocket piece to the garment along the sewing margin thereof.
Claim 2
Independent Claim 151 words
A method of automatically setting and sewing a pocket piece to a garment lying flat on a work support comprising the steps of: a. placing the pocket piece in a clamp raised above the garment and having a split expandable and retractable margin forming plate in expanded position; b. folding the edges of the pocket piece downwardly about the expanded margin forming plate by a retractable folding means; c. lowering the folded pocket piece within the clamp closely adjacent and substantially parallel to the garment for the purpose of aligning the pattern between said pocket piece and said garment; d. placing the folded pocket piece within the clamp upon the garment with the folded edges adjacent said garment; e. retracting the folding means; f. establishing a sewing margin in said clamp by retracting the margin forming plate; and g. sewing the pocket piece to the garment along the sewing margin thereof.
Claim 3
Dependent Claim 40 words
The method claimed in claim 1 wherein the retractable folding means includes a window means for the additional step of viewing the workpiece through the window means to assist in aligning the patterns between said pocket piece and said garment.
Claim 4
Dependent Claim 62 words
The method claimed in claim 1 wherein a pair of darts are sewn in the pocket piece and garment at the first and last corners thereof including the step of guiding the pocket piece at each of the darts by a yieldable guide biased in one of two positions to prevent flapPing of the pocket piece while the dart is being sewn.
Claim 5
Dependent Claim 263 words
In a device for automatically setting and sewing a pocket piece to a garment, a motor driven template frame, a sewing machine, a fixture connected to be driven by the frame adjacent the sewing machine in a path prescribed by the template comprising: a. a clamp carried at the free end of the fixture to be shifted toward and away from the garment: b. an upper setting plate on the clamp defining a marginal edge for sewing the pocket piece to the garment; c. a split lower setting plate on the clamp to interact with the upper setting plate to receive the pocket therebetween; d. the split lower setting plate having an expanded position extending outwardly of the marginal edge and a retracted position lying inwardly of the marginal edge; e. slide pins connected to the lower setting plate; f. a crank member mounted on the clamp to engage the slide pins; g. a pneumatic actuator connected to the crank member to effect a cranking motion therewith and selectively to shift the slide pins whereby the lower setting plate will be urged into an expanded or retracted position; h. a bracket connected to the fixture and spaced a predetermined distance outwardly of the upper and lower setting plates; and i. edge folding means retractably mounted in the bracket selectively to fold the edges of the pocket piece under the expanded lower plate whereby the clamp can be shifted toward the garment, and the folding means and lower plate are retracted prior to sewing the pocket piece to the garment along the marginal edge.
Claim 6
Dependent Claim 263 words
In a device for automatically setting and sewing a pocket piece to a garment, a motor driven template frame, a sewing machine, a fixture connected to be driven by the frame adjacent the sewing machine in a path prescribed by the template comprising: a. a clamp carried at the free end of the fixture to be shifted toward and away from the garment: b. an upper setting plate on the clamp defining a marginal edge for sewing the pocket piece to the garment; c. a split lower setting plate on the clamp to interact with the upper setting plate to receive the pocket therebetween; d. the split lower setting plate having an expanded position extending outwardly of the marginal edge and a retracted position lying inwardly of the marginal edge; e. slide pins connected to the lower setting plate; f. a crank member mounted on the clamp to engage the slide pins; g. a pneumatic actuator connected to the crank member to effect a cranking motion therewith and selectively to shift the slide pins whereby the lower setting plate will be urged into an expanded or retracted position; h. a bracket connected to the fixture and spaced a predetermined distance outwardly of the upper and lower setting plates; and i. edge folding means retractably mounted in the bracket selectively to fold the edges of the pocket piece under the expanded lower plate whereby the clamp can be shifted toward the garment, and the folding means and lower plate are retracted prior to sewing the pocket piece to the garment along the marginal edge.
Claim 7
Dependent Claim 81 words
The combination claimed in claim 4 wherein: a. the upper setting plate has inwardly inclined edges adjacent the marginal edge of initial and final sewing and b. a dart guide is yieldably mounted on the upper plate adjacent each of the inclined edges, c. an actuator pin fixedly mounted to the sewing machine to contact the dart guide and urge the same toward or away from the inclined edge to prevent flagging of the pocket piece during the dart sewing operation.
Claim 8
Dependent Claim 47 words
The combination claimed in claim 5 including: a. a spring means connected to one of the dart guides to bias it toward the adjacent inclined edge, and b. a spring means connected to the other dart guide means to bias it away from the adjacent inclined edge.
Claim 9
Dependent Claim 69 words
The combination claimed in claim 4 wherein: a. the lower setting plate is split longitudinally to form two overlapping segments; b. a pair of slide pins slidably mounted in the clamp and one of which is connected to each of the plate segments; and c. each of the slide pins is shiftable responsive to the crank member to slide along an inclined line with respect to the longitudinal split.
Claim 10
Dependent Claim 49 words
The combination claimed in claim 7 wherein: a. said split in the lower setting plate extends centrally longitudinally thereof; and b. the slide pins are slideably disposed in the clamp each to slide along an oppositely inclined line forming an angle of 45* with respect to the longitudinal split.
Claim 11
Dependent Claim 273 words
In a device for automatically setting and sewing a pocket piece to a garment, a motor driven template frame, a sewing machine, a fixture connected to be driven by the frame adjacent the sewing machine in a path prescribed by the template comprising: a. a clamp carried at the free end of the fixture to be shifted toward and away from the garment: b. an upper setting plate on the clamp defining a marginal edge for sewing the pocket piece to the garment; c. the upper setting plate has inwardly inclined edges adjacent the marginal edge of initial and final sewing; d. a dart guide yieldably mounted on the upper plate adjacent each of the inclined edges; e. a lower setting plate on the clamp to interact with the upper setting plate to receive the pocket therebetween; f. the lower setting plate having an expanded position extending outwardly of the marginal edge and a retracted position lying inwardly Of the marginal edge; g. a bracket connected to the fixture and spaced a predetermined distance outwardly of the upper and lower setting plates; h. edge-folding means retractably mounted in the bracket selectively to fold the edges of the pocket piece under the expanded lower plate whereby the clamp can be shifted toward the garment, and the folding means and lower plate retracted prior to sewing the pocket piece to the garment along the marginal edge; and i. an actuator pin fixedly mounted to the sewing machine to contact the dart guide and urge the same toward or away from the inclined edge to prevent flagging of the pocket piece during the dart sewing operation.
Claim 12
Dependent Claim 273 words
In a device for automatically setting and sewing a pocket piece to a garment, a motor driven template frame, a sewing machine, a fixture connected to be driven by the frame adjacent the sewing machine in a path prescribed by the template comprising: a. a clamp carried at the free end of the fixture to be shifted toward and away from the garment: b. an upper setting plate on the clamp defining a marginal edge for sewing the pocket piece to the garment; c. the upper setting plate has inwardly inclined edges adjacent the marginal edge of initial and final sewing; d. a dart guide yieldably mounted on the upper plate adjacent each of the inclined edges; e. a lower setting plate on the clamp to interact with the upper setting plate to receive the pocket therebetween; f. the lower setting plate having an expanded position extending outwardly of the marginal edge and a retracted position lying inwardly Of the marginal edge; g. a bracket connected to the fixture and spaced a predetermined distance outwardly of the upper and lower setting plates; h. edge-folding means retractably mounted in the bracket selectively to fold the edges of the pocket piece under the expanded lower plate whereby the clamp can be shifted toward the garment, and the folding means and lower plate retracted prior to sewing the pocket piece to the garment along the marginal edge; and i. an actuator pin fixedly mounted to the sewing machine to contact the dart guide and urge the same toward or away from the inclined edge to prevent flagging of the pocket piece during the dart sewing operation.
Claim 13
Dependent Claim 47 words
The combination claimed in claim 9 including: a. a spring means connected to one of the dart guides to bias it toward the adjacent inclined edge; and b. a spring means connected to the other dart guide means to bias it away from the adjacent inclined edge.

References Cited (Backward Citations)

US1979872A Cited
US2453623A Cited
US2609129A Cited
US3143091A Cited
US3216380A Cited
US3483834A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-01-04 1974-07-06 1975-01-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-04 1978-07-06 1979-01-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-04 1982-07-06 1983-01-05 $7700.00 Window Closed / Lapsed

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