GB1310787A - Change-speed drive transmitting means - Google Patents
Change-speed drive transmitting meansInfo
- Publication number
- GB1310787A GB1310787A GB1310787DA GB1310787A GB 1310787 A GB1310787 A GB 1310787A GB 1310787D A GB1310787D A GB 1310787DA GB 1310787 A GB1310787 A GB 1310787A
- Authority
- GB
- United Kingdom
- Prior art keywords
- speed
- winding
- clutch
- shaft
- disc
- 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
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/14—Devices for changing speed or for reversing direction of rotation
- D05B69/16—Devices for changing speed or for reversing direction of rotation mechanical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
1310787 Change-speed gear; clutch control SOC ANON SUBEM 21 Oct 1971 49041/71 Headings F2D and F2L A two-speed drive and output brake for a sewing-machine comprises a high-speed faced clutch disc 19, secured to an axially movable output shaft 12 and engaged frictionally with the face of a flywheel 11, driven by an electric motor 10, by depression of a start pedal connected by a chain to a bellcrank lever (54, Fig. 2, not shown), engaging a non-rotatable sleeve 46, bearing at 47 on the shaft 12, and loaded out of clutch engagement by a spring 44, the shaft 12 also carrying on a resilient disc 23, a second and low-speed clutch disc, engaged by excitation of a magnet winding 40 with a freely-mounted wheel 32, driven at slow speed by the motor 10 through a side shaft A, toothed wheel B and belt. The low-speed winding 40 is normally energized by a switch in one arm of the bellcrank lever, this switch being opened by initial depression of the start pedal so that the machine starts in high speed. Its speed can be adjusted during operation by varying the load applied to the start pedal to cause more or less slip in the high-speed clutch. The output shaft is braked for stopping in a predetermined position, as described in Specification 1,230,941, by energizing a brake winding 50, holding a disc 51, secured to the output shaft 12 along with a pulley 18, the circuit of the low-speed winding 40, which includes brushes 38, 39, being first opened, following its clsoure by release of the start pedal.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4904172A GB1327466A (en) | 1970-10-12 | 1971-10-21 | Pharmaceutical compositions for inhibiting indoleamine-n- methyl transferase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1310787A true GB1310787A (en) | 1973-03-21 |
Family
ID=10450898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1310787D Expired GB1310787A (en) | 1971-10-21 | 1971-10-21 | Change-speed drive transmitting means |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1310787A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659120A (en) * | 2017-10-23 | 2018-02-02 | 宝鸡泰华磁机电技术研究所有限公司 | The two-way torque converter clutch of permanent magnetism for railway locomotive |
-
1971
- 1971-10-21 GB GB1310787D patent/GB1310787A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659120A (en) * | 2017-10-23 | 2018-02-02 | 宝鸡泰华磁机电技术研究所有限公司 | The two-way torque converter clutch of permanent magnetism for railway locomotive |
| CN107659120B (en) * | 2017-10-23 | 2023-06-20 | 宝鸡泰华磁机电技术研究所有限公司 | Permanent magnet bidirectional torque-changing clutch device for railway locomotive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |