GB774660A - Automatic clamp opening device for sewing machines - Google Patents
Automatic clamp opening device for sewing machinesInfo
- Publication number
- GB774660A GB774660A GB29666/55A GB2966655A GB774660A GB 774660 A GB774660 A GB 774660A GB 29666/55 A GB29666/55 A GB 29666/55A GB 2966655 A GB2966655 A GB 2966655A GB 774660 A GB774660 A GB 774660A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cam
- latch
- shaft
- rod
- frame
- 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
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G21/00—Mechanical apparatus for control of a series of operations, i.e. programme control, e.g. involving a set of cams
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
- D05B3/12—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for fastening articles by sewing
- D05B3/14—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for fastening articles by sewing perforated or press buttons
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
774,660. Sewing machines. SINGER MANUFACTURING CO. Oct. 18, 1955 [Nov. 1, 1954], No. 29666/55. Class 112. A work clamp is opened by a cam through a member which may be shifted to connect operatively the cam and the clamp opening mechanism, and the opening mechanism is then held by a latch in the open position. The drawings show in the at rest position, a machine for attaching buttons. The pivoted upper jaw 15 of the work clamp is coupled by a link 35 to an arm 36 of a rock shaft 37 provided with an arm 41 coupled by a link 42 to a push rod 38. The push rod is moved to the raised position by a cam 74 on the drive shaft 17 acting through a bell crank 77 on a shaft 80, and is held raised by a latch 88 engaging a notch in the rod. The machine is driven by a V-belt 43 engaging a pulley mounted on the drive shaft 17 and provided with a loose flange 45 the position of which is controlled by a swinging frame 46 pivoted at 47. To start an operating cycle the bellcrank 63 is operated by the pull-chain 65 to raise the slide-bar 61 and move the frame so that the flat spring 50 thereon moves the pulley flange 45 to make the drive effective. The latch 68 is released from the point 71 of cam 69 and moves to engage the collar 67 and hold the bar 61 in the raised position. The movement of the frame, to the left of the position shown in Fig. 3, causes the pivoted latch 88 to be disengaged from the notch in the push rod 38 by the finger 92 and moves the shaft 80 to disengage the bell crank 77 from the cam 74. Release of the push-rod 38 causes rotation of the rock shaft 37 and closure of the work clamp, which is held in work-gripping relation by a presser bar adjustably biased by a spring 33. At the end of the cycle the latch 68 is tripped by points 70, 71 on cam 69 and a stop-block 57 on a rod 53 resiliently centred on a lug 54 on the frame 46 engages a notch 58 on the hub of the fixed pulley flange 44 to bring the machine to rest with its various parts in the positions shown.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US466034A US2849971A (en) | 1954-11-01 | 1954-11-01 | Automatic clamp opening devices for sewing machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB774660A true GB774660A (en) | 1957-05-15 |
Family
ID=23850179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29666/55A Expired GB774660A (en) | 1954-11-01 | 1955-10-18 | Automatic clamp opening device for sewing machines |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2849971A (en) |
| DE (1) | DE1032072B (en) |
| GB (1) | GB774660A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL240309A (en) * | 1958-06-20 | |||
| US3854431A (en) * | 1973-06-19 | 1974-12-17 | A 1 Sewing Center | Opening means for button-holding accessory to sewing machine |
| CS202191B1 (en) * | 1977-12-30 | 1980-12-31 | Frantisek Bajer | Buttonhole sewing machine |
| FR2443213A1 (en) * | 1978-12-05 | 1980-07-04 | Pb Gelatines | Gelatin particles coated with fat used in meat preserves - enabling uniform gelatin distribution in meat prod. |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1738868A (en) * | 1926-05-29 | 1929-12-10 | Reece Button Hole Machine Co | Sewing machine |
| US2374804A (en) * | 1940-07-24 | 1945-05-01 | Brussell Jacob | Control mechanism for sewing machines |
| US2511367A (en) * | 1942-12-10 | 1950-06-13 | Lewis Invisible Stitch Machine | Button sewing machine |
| US2356665A (en) * | 1943-03-06 | 1944-08-22 | Singer Mfg Co | Article attaching machine |
| US2540987A (en) * | 1948-06-16 | 1951-02-06 | Singer Mfg Co | Clamp raising and lowering means for sewing machines |
| US2645192A (en) * | 1952-04-26 | 1953-07-14 | Singer Mfg Co | Automatic button-clamp lifting means |
-
1954
- 1954-11-01 US US466034A patent/US2849971A/en not_active Expired - Lifetime
-
1955
- 1955-10-18 GB GB29666/55A patent/GB774660A/en not_active Expired
- 1955-10-28 DE DES46162A patent/DE1032072B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US2849971A (en) | 1958-09-02 |
| DE1032072B (en) | 1958-06-12 |
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