US3669049A - Presser foot deflecter of a fabric edge in a sewing machine - Google Patents
Presser foot deflecter of a fabric edge in a sewing machine Download PDFInfo
- Publication number
- US3669049A US3669049A US48308A US3669049DA US3669049A US 3669049 A US3669049 A US 3669049A US 48308 A US48308 A US 48308A US 3669049D A US3669049D A US 3669049DA US 3669049 A US3669049 A US 3669049A
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- US
- United States
- Prior art keywords
- needle
- guide channel
- presser foot
- overedge
- sole
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- Expired - Lifetime
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B23/00—Sewing apparatus or machines not otherwise provided for
Definitions
- deflector includes a longitudinal guide channel located between a needle hole through which a first needle is moved 2% 2; 62 32 to perform the assembly stitching and an opening through 5 'P i 6 4 which a second needle is moved to perform the serge stitching. 1 o arc l 7
- the guide channel receives the edge of the upper fabric and deflects the fabric edge upward to guide the edge between the needles to permit the second needle to apply serge stitching to [56]
- the present invention relates to a presser foot deflecter of a fabric edge, already serged on its outside extremity, so that contemporaneously, with a single operation, said edge is sewn to one underneath'and the latter is serged on its outside extremity.
- This presser foot is particularly useful for trouser side seaming.
- the trouser side, seaming provides a serging formation on each outside extremity of the two edges of fabric to be seamed and an assembling seaming formation parallel to said sergings.
- the purpose of the present invention is to eliminate one of serging operations by combining it with that, for example, of assembling so as to obtain the trouser side seaming with two simultaneous operations.
- a pair of leg portions are joined by longitudinal straight seaming and only one of the leg portions is bound by oven-stitching with the other leg portion folded back.
- the technical problem to be solved was to deflect upwards one of the two fabric edges to be asmuld, already serged previously or selveged in origin, so as to avoid any interference with the needle'provided for serging the other edge and with the needle provided for assembling the two edges together;
- a presser foot of the type mentioned wherein is provided a longitudinal guide channel placed between the hole for the needle passage for the assembly stitch and the needle-passage opening for overedging seam of which the machine is provided; the longitudinal guide channel being provided for receiving and deflecting upwards the outside extremity of the upper fabric edge, making the work, to guide it between said sewing machine needles and keep it spaced from the outside extremity of the lower fabric edge which, therefore, can be serged by the right needle while the left one makes an assembling seaming uniting both said edges.
- the main advantage of the present invention is due to the fact that now the trouser side seaming or other like seams can be made by employing the presser foot in question with a common two-needle sewing machine, of which, one for the assembling seaming formation and the other for the overedging formation.
- Another important advantage is due to the possibility of simultaneously sewing also lining or the single knee-lining to that fabric edge which is deflected upwards, as lining or knee-lining, usually of slippery material, can be joined to the above mentioned fabric edge in a previous operation so not to cause obstacles during the subsequent stitching operations.
- FIG. 1 shows some components of the sewing machine among them a presser foot in accordance with the invention
- FIG. 2 shows the same presser foot as FIG. 1 sectioned to line II-II,
- FIG. 3 shows a 'work fragment obtained by employing a presser foot according to the invention.
- the presser foot deflecter 1 which is the object of the present invention, is fixed in a known manner to the usual presser bar 2 of the sewing machine and it is situated below the known needle bar 3 in which is mounted a needle clamp 4 equipped with needles 5 and 6.
- the needle 5 cooperates with a conventional looptaker (not shown), in formation of a join seaming 7 on the work 8 which comprises two overlapped fabric plies 9 and 10.
- the needle 6 cooperates with conventional primary and secondary loopers (primary looper not shown) in the formation of overedge stitch serging on the outside extremity of the lower fabric ply 10 only.
- the presser foot deflecter 1 comprises a sole 12 and a bracket 13 which can be attached to the presser foot bar 2.
- the sole '12 comprises a slightly lengthened hole 14 through which the left needle 5 passes during the formation of each assembling seam and an opening 15 through which the right needle 6 passes during the formation of each overedge stitch.
- the opening 15 is delimited in its back part by a little supplementary sole l6 and in its forepart by a tongue 17, which as known, cooperates in making the above mentioned overedge stitching.
- said sole comprises a guide channel 18, placed longitudinally for the whole length of the presser'foot 1, said channel being inter- I rupted on its upper part in correspondence to the needle hole 14 and to the opening 15 for letting the needle clamp 4 move downwards without any interferencewith said channel, during the work strokes. Due to the interruption, the longitudinal guide channel 18 ends on the back part of the sole 12 with a guide element 19 to which the little supplementary sole 16 is also joined.
- the longitudinal channel 18, which is opened in its lower part, for its whole length is provided for receiving and deflecting upwards the outsideextremity of the fabric upper edge 9 for guiding it between the two right and left needles 5 and 6 keeping it erect for the whole length of the sole 12.
- the upper edge 9, provided previously with serging 20 similar to serging 11, can, in case of need, be provided with a lining or a simple knee-lining which is joined to the edge byv means of the same overedge stitch seam 20.
- a guide 21 comprising a bracket 22, fitted so as to be adjustable on sewing machine, and a plate 23, substantially vertical, which is fixed on one of the extremities of the bracket 22 and is aligned with the longitudinal guidechannel 18 to guide in the most appropriate way the initial part of the upper edge 9 and facilitate same entering the actual channel.
- the plate 23 is level with the right wall 24 of said channel.
- the bracket 22 comprises a vertical wall 25, displaced as regards the plate 23, and slide 26 making a lower channel in which the lower edge 10only is made to slide for being directed towards the usual trimming knife, not shown, with which the sewing machine is provided.
- the outside extremity of the upper fabric edge 9, and the lining or knee-lining part if any, joined to it by serging 20, is made to slide first, on the plate 23 and then inserted into the longitudinal guide channel 18 where the right wall 24 keeps it erect and spaced from the underneath outside extremity 10, which, as consequence of this can be serged by the right needle 6.
- the left wall 27 of the same channel 18, on the contrary, keeps the outside extremity of the above mentioned upper fabric edge 9, spaced from the left needle 5 also when the known secondary looper 28 which cooperates with the needle 6 in the overedge stitch formation, touches it during its upward stroke.
- presser foot deflecter 1 can be employed also in manufacturing items different from trousers on condition that separate serging of the two edges to be assembled is foreseen.
- a presser foot for a sewing machine having a first needle and a looptaker cooperating in the formation of straight stitch join seaming, a second needle and primary and secondary loopers cooperating in the formation of overedge stitching, and common feed means for advancing work comprising two superposed fabric plies to be simultaneously seamed together and overedge stitched on an outside extremity of the lower ply, said presser foot comprising:
- a sole having a needle hole for receiving the straight stitch needle and an opening in side edge thereof for receiving the overedge stitch needle and loopers;
- said longitudinal guide channel comprising separate front and rear portions longitudinally aligned on opposite sides of the needles for guiding the outside extremity of the upper ply between the needles.
- each of the aligned portions of said longitudinal guide channel comprises a pair of spaced vertical walls having a depth substantially equal to the width of the margin between the outer edge of the ply to be overedge stitched and the straight stitch join seaming.
- the presser foot of claim 1 which includes a tongue projecting rearward from the front portion of said guide channel for making the overedge stitching and a supplementary sole mounted on the rear portion of said guide channel, said tongue and supplementary sole defining said opening for receiving the overedge stitch needle and loopers.
- a presser foot comprising a. a sole having a needle hole for receiving the straight stitch needle and an opening in a side edge thereof for receiving the overedge stitch needle and loopers and b. means forming a longitudinal guide channel on said sole located between said needle hole and said opening and disposed parallel to the straight stitch join seaming, said longitudinal guide channel comprising separate front and rear portions longitudinally aligned on opposite sides of the needles for guiding the outside extremity of the upper ply between the needles; and
- a guide member including a substantially vertical plate located in front of said presser foot in alignment with said longitudinal guide channel for guiding the outside extremity of the upper ply into said guide channel.
- said guide member includes a slide to provide a lower channel in said guide member for receiving the outside extremity of the lower ply.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
A presser foot deflector is provided for use with a two needle sewing machine to permit simultaneous assembly and serge stitching at the edges of a pair of fabrics to be seamed. The deflector includes a longitudinal guide channel located between a needle hole through which a first needle is moved to perform the assembly stitching and an opening through which a second needle is moved to perform the serge stitching. The guide channel receives the edge of the upper fabric and deflects the fabric edge upward to guide the edge between the needles to permit the second needle to apply serge stitching to the edge of the lower fabric and the first needle to simultaneously apply assembly stitching to the upper and lower fabrics to form a seam.
Description
United States Patent Marforio 1 June 13, 1972 [54] PRESSER FOOT DEFLECTER OF A 1,367,388 2/1921 Hayes ..l 12/ 151 X FABRIC EDGE IN A SEWING MACHINE 3,327,663 6/1967 3,492,960 2/1970 [721 Invent Mam, M113, My 3,349,736 10/1967 Howell ..112/235 [73] Assignee: S.p.A. Virginio Rimoldi & C., Milan,
Italy I Primary Examiner-4'1. Hampton Hunter Filed J 22 1970 Attorney-Finnegan, Henderson, Farabow & Garrett 21 Appl. No.: 48,308 ABSTRACT A presser foot deflector is provided for use with a two needle [30] Foreign Application P iorit D t sewing machine :10 pentnit simulttapegus assenbly and serrge stitc ing at the e ges o a pair 0 a rics to e seamed. e ,July 29, 1969 Italy ..202l9 N69 deflector includes a longitudinal guide channel located between a needle hole through which a first needle is moved 2% 2; 62 32 to perform the assembly stitching and an opening through 5 'P i 6 4 which a second needle is moved to perform the serge stitching. 1 o arc l 7 The guide channel receives the edge of the upper fabric and deflects the fabric edge upward to guide the edge between the needles to permit the second needle to apply serge stitching to [56] References cued the edge of the lower fabric and the first needle to simultane- UNITED STATES PATENTS ously apply assembly stitching to the upper and lower fabrics to form a seam. 3,246,620 4/1966 Sigoda et a1 .1 ..1 12/163 X 3,342,150 9/1967 Tretow et al ..1 12/162 5 Claims, 3 Drawing Figures PATENTEDJUH 13 m2 3,669,049
INVENTOR NERINO MARFOR l O fineyan, ffena azson flg m oa) ATTORNEYS l PRESSER FOOT DEFLECTER OF A FABRIC EDGE IN A SEWING MACHINE The present invention relates to a presser foot deflecter of a fabric edge, already serged on its outside extremity, so that contemporaneously, with a single operation, said edge is sewn to one underneath'and the latter is serged on its outside extremity.
This presser foot is particularly useful for trouser side seaming.
As known, the trouser side, seaming provides a serging formation on each outside extremity of the two edges of fabric to be seamed and an assembling seaming formation parallel to said sergings.
Until now, serging. and assembling seams were made in three distinct operations by employing at least two sewing machines of different types.
The purpose of the present invention is to eliminate one of serging operations by combining it with that, for example, of assembling so as to obtain the trouser side seaming with two simultaneous operations. In the assembly of trousers by the compound sewing operation, a pair of leg portions are joined by longitudinal straight seaming and only one of the leg portions is bound by oven-stitching with the other leg portion folded back.
To achieve this purpose, the technical problem to be solved was to deflect upwards one of the two fabric edges to be as sembled, already serged previously or selveged in origin, so as to avoid any interference with the needle'provided for serging the other edge and with the needle provided for assembling the two edges together;
For the solution of this technical problem a presser foot of the type mentioned is realized, wherein is provided a longitudinal guide channel placed between the hole for the needle passage for the assembly stitch and the needle-passage opening for overedging seam of which the machine is provided; the longitudinal guide channel being provided for receiving and deflecting upwards the outside extremity of the upper fabric edge, making the work, to guide it between said sewing machine needles and keep it spaced from the outside extremity of the lower fabric edge which, therefore, can be serged by the right needle while the left one makes an assembling seaming uniting both said edges.
The main advantage of the present invention is due to the fact that now the trouser side seaming or other like seams can be made by employing the presser foot in question with a common two-needle sewing machine, of which, one for the assembling seaming formation and the other for the overedging formation. Another important advantage is due to the possibility of simultaneously sewing also lining or the single knee-lining to that fabric edge which is deflected upwards, as lining or knee-lining, usually of slippery material, can be joined to the above mentioned fabric edge in a previous operation so not to cause obstacles during the subsequent stitching operations.
Other characteristics and advantages of the presser foot in question will become apparent from the following detailed description of a preferred embodiment of realization which description is referred to the accompanying drawings, wherein:
FIG. 1 shows some components of the sewing machine among them a presser foot in accordance with the invention,
FIG. 2 shows the same presser foot as FIG. 1 sectioned to line II-II,
FIG. 3 shows a 'work fragment obtained by employing a presser foot according to the invention.
The presser foot deflecter 1 which is the object of the present invention, is fixed in a known manner to the usual presser bar 2 of the sewing machine and it is situated below the known needle bar 3 in which is mounted a needle clamp 4 equipped with needles 5 and 6.
The needle 5 cooperates with a conventional looptaker (not shown), in formation of a join seaming 7 on the work 8 which comprises two overlapped fabric plies 9 and 10.
The needle 6 cooperates with conventional primary and secondary loopers (primary looper not shown) in the formation of overedge stitch serging on the outside extremity of the lower fabric ply 10 only.
The presser foot deflecter 1 comprises a sole 12 and a bracket 13 which can be attached to the presser foot bar 2.
ln alignment with needles 5 and 6, the sole '12 comprises a slightly lengthened hole 14 through which the left needle 5 passes during the formation of each assembling seam and an opening 15 through which the right needle 6 passes during the formation of each overedge stitch. I
The opening 15 is delimited in its back part by a little supplementary sole l6 and in its forepart by a tongue 17, which as known, cooperates in making the above mentioned overedge stitching.
Said stitches are partially formed on a similar tongue of the usual needle plate, not shown, which is below the work 8, and partially on the tongue 17 on the samesole 12 of the presser foot 1. t
Between the needle hole 14 and the opening 15, said sole comprises a guide channel 18, placed longitudinally for the whole length of the presser'foot 1, said channel being inter- I rupted on its upper part in correspondence to the needle hole 14 and to the opening 15 for letting the needle clamp 4 move downwards without any interferencewith said channel, during the work strokes. Due to the interruption, the longitudinal guide channel 18 ends on the back part of the sole 12 with a guide element 19 to which the little supplementary sole 16 is also joined.
The longitudinal channel 18, which is opened in its lower part, for its whole length is provided for receiving and deflecting upwards the outsideextremity of the fabric upper edge 9 for guiding it between the two right and left needles 5 and 6 keeping it erect for the whole length of the sole 12. The upper edge 9, provided previously with serging 20 similar to serging 11, can, in case of need, be provided with a lining or a simple knee-lining which is joined to the edge byv means of the same overedge stitch seam 20. In front of the presser foot is a guide 21 comprising a bracket 22, fitted so as to be adjustable on sewing machine, and a plate 23, substantially vertical, which is fixed on one of the extremities of the bracket 22 and is aligned with the longitudinal guidechannel 18 to guide in the most appropriate way the initial part of the upper edge 9 and facilitate same entering the actual channel.
Particularly the plate 23 is level with the right wall 24 of said channel.
In the lower part, the bracket 22 comprises a vertical wall 25, displaced as regards the plate 23, and slide 26 making a lower channel in which the lower edge 10only is made to slide for being directed towards the usual trimming knife, not shown, with which the sewing machine is provided.
At the beginning of the sewing operations, the outside extremity of the upper fabric edge 9, and the lining or knee-lining part if any, joined to it by serging 20, is made to slide first, on the plate 23 and then inserted into the longitudinal guide channel 18 where the right wall 24 keeps it erect and spaced from the underneath outside extremity 10, which, as consequence of this can be serged by the right needle 6.
The left wall 27 of the same channel 18, on the contrary, keeps the outside extremity of the above mentioned upper fabric edge 9, spaced from the left needle 5 also when the known secondary looper 28 which cooperates with the needle 6 in the overedge stitch formation, touches it during its upward stroke.
When the outside extremity (free edge or ply edge) of upper fabric ply 9 leaves the channel, on the rear part of the presser foot 1 the outside extremity of the upper fabric ply 9 bends freely down against the outside already serged extremity of the lower fabric ply 10 to which itis joined by the assembling seam 7. Therefore work 8 completed with two sergings 11 and 20 can be, with a subsequent operation, pressed open with the two outside extremities each folded back.
It is understood that the presser foot deflecter 1 can be employed also in manufacturing items different from trousers on condition that separate serging of the two edges to be assembled is foreseen.
1 claim:
1. A presser foot for a sewing machine having a first needle and a looptaker cooperating in the formation of straight stitch join seaming, a second needle and primary and secondary loopers cooperating in the formation of overedge stitching, and common feed means for advancing work comprising two superposed fabric plies to be simultaneously seamed together and overedge stitched on an outside extremity of the lower ply, said presser foot comprising:
a sole having a needle hole for receiving the straight stitch needle and an opening in side edge thereof for receiving the overedge stitch needle and loopers; and
means forming a longitudinal guide channel on said sole located between said needle hole and said opening and disposed parallel to the straight stitch join seaming, said longitudinal guide channel comprising separate front and rear portions longitudinally aligned on opposite sides of the needles for guiding the outside extremity of the upper ply between the needles.
2. The presser foot of claim 1, wherein each of the aligned portions of said longitudinal guide channel comprises a pair of spaced vertical walls having a depth substantially equal to the width of the margin between the outer edge of the ply to be overedge stitched and the straight stitch join seaming.
3, The presser foot of claim 1, which includes a tongue projecting rearward from the front portion of said guide channel for making the overedge stitching and a supplementary sole mounted on the rear portion of said guide channel, said tongue and supplementary sole defining said opening for receiving the overedge stitch needle and loopers.
4. In a sewing machine having a first needle and a looptaker cooperating in the formation of straight stitch join seaming, a second needle and primary and secondary loopers cooperating in the formation of overedge stitching, and common feed means for advancing work comprising two superposed fabric plies to be simultaneously seamed together and over edge stitched on an outside extremity of the lower ply:
a presser foot comprising a. a sole having a needle hole for receiving the straight stitch needle and an opening in a side edge thereof for receiving the overedge stitch needle and loopers and b. means forming a longitudinal guide channel on said sole located between said needle hole and said opening and disposed parallel to the straight stitch join seaming, said longitudinal guide channel comprising separate front and rear portions longitudinally aligned on opposite sides of the needles for guiding the outside extremity of the upper ply between the needles; and
a guide member including a substantially vertical plate located in front of said presser foot in alignment with said longitudinal guide channel for guiding the outside extremity of the upper ply into said guide channel.
5. The combination of claim 4, wherein said guide member includes a slide to provide a lower channel in said guide member for receiving the outside extremity of the lower ply.
Claims (5)
1. A presser foot for a sewing machine having a first needle and a looptaker cooperating in the formation of straight stitch join seaming, a second needle and primary and secondary loopers cooperating in the formation of overedge stitching, and common feed means for advancing work comprising two superposed fabric plies to be simultaneously seamed together and overedge stitched on an outside extremity of the lower ply, said presser foot comprising: a sole having a needle hole for receiving the straight stitch needle and an opening in side edge thereof for receiving the overedge stitch needle and loopers; and means forming a longitudinal guide channel on said sole located between said needle hole and said opening and disposed parallel to the straight stitch join seaming, said longitudinal guide channel comprising separate front and rear portions longitudinally aligned on opposite sides of the needles for guiding the outside extremity of the upper ply between the needles.
2. The presser foot of claim 1, wherein each of the aligned portions of said longitudinal guide channel comprises a pair of spaced vertical walls having a depth substantially equal to the width of the margin between the outer edge of the ply to be overedge stitched and the straight stitch join seaming.
3. The presser foot of claim 1, which includes a tongue projecting rearward from the front portion of said guide channel for making the overedge stitching and a supplementary sole mounted on the rear portion of said guide channel, said tongue and supplementary sole defining said opening for receiving the overedge stitch needle and loopers.
4. In a sewing machine having a first needle and a looptaker cooperating in the formation of straight stitch join seaming, a second needle and primary and secondary loopers cooperating in the formation of overedge stitching, and common feed means for advancing work comprising two superposed fabric plies to be simultaneously seamed together and over edge stitched on an outside extremity of the lower ply: a presser foot comprising a. a sole having a needle hole for receiving the straight stitch needle and an opening in a side edge thereof for receiving the overedge stitch needle and loopers and b. means forming a longitudinal guide channel on said sole located between said needle hole and said opening and disposed parallel to the straight stitch join seaming, said longitudinal guide channel comprising separate front and rear portions longitudinally aligned on opposite sides of the needles for guiding the outside extremity of The upper ply between the needles; and a guide member including a substantially vertical plate located in front of said presser foot in alignment with said longitudinal guide channel for guiding the outside extremity of the upper ply into said guide channel.
5. The combination of claim 4, wherein said guide member includes a slide to provide a lower channel in said guide member for receiving the outside extremity of the lower ply.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2021969 | 1969-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3669049A true US3669049A (en) | 1972-06-13 |
Family
ID=11164850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US48308A Expired - Lifetime US3669049A (en) | 1969-07-29 | 1970-06-22 | Presser foot deflecter of a fabric edge in a sewing machine |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3669049A (en) |
| DE (1) | DE2037718A1 (en) |
| GB (1) | GB1285402A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3703148A (en) * | 1971-08-13 | 1972-11-21 | Scovill Manufacturing Co | Guide for sewing invisible fasteners |
| US4006695A (en) * | 1975-05-30 | 1977-02-08 | Textron, Inc. | Apparatus for applying slide fastener chain to tubular garment |
| US6170419B1 (en) * | 1997-01-31 | 2001-01-09 | Amf Reece, Inc. | Presser foot for a sewing machine |
| US8998338B2 (en) | 2012-09-20 | 2015-04-07 | Steelcase Inc. | Chair assembly with upholstery covering |
-
1970
- 1970-06-22 US US48308A patent/US3669049A/en not_active Expired - Lifetime
- 1970-07-21 GB GB35235/70A patent/GB1285402A/en not_active Expired
- 1970-07-29 DE DE19702037718 patent/DE2037718A1/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3703148A (en) * | 1971-08-13 | 1972-11-21 | Scovill Manufacturing Co | Guide for sewing invisible fasteners |
| US4006695A (en) * | 1975-05-30 | 1977-02-08 | Textron, Inc. | Apparatus for applying slide fastener chain to tubular garment |
| US6170419B1 (en) * | 1997-01-31 | 2001-01-09 | Amf Reece, Inc. | Presser foot for a sewing machine |
| US8998338B2 (en) | 2012-09-20 | 2015-04-07 | Steelcase Inc. | Chair assembly with upholstery covering |
| US9173491B2 (en) | 2012-09-20 | 2015-11-03 | Steelcase Inc. | Chair assembly with upholstery covering |
| US9179777B2 (en) | 2012-09-20 | 2015-11-10 | Steelcase Inc. | Method of assembling a chair component |
| US9345328B2 (en) | 2012-09-20 | 2016-05-24 | Steelcase Inc. | Chair assembly with upholstery covering |
| US9681750B2 (en) | 2012-09-20 | 2017-06-20 | Steelcase Inc. | Chair assembly with upholstery covering |
| US10165861B2 (en) | 2012-09-20 | 2019-01-01 | Steelcase Inc. | Chair assembly with upholstery covering |
| US10765212B2 (en) | 2012-09-20 | 2020-09-08 | Steelcase Inc. | Chair assembly with upholstery covering |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1285402A (en) | 1972-08-16 |
| DE2037718A1 (en) | 1971-02-25 |
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