GB837896A - Improvements in or relating to sewing machines - Google Patents
Improvements in or relating to sewing machinesInfo
- Publication number
- GB837896A GB837896A GB3850456A GB3850456A GB837896A GB 837896 A GB837896 A GB 837896A GB 3850456 A GB3850456 A GB 3850456A GB 3850456 A GB3850456 A GB 3850456A GB 837896 A GB837896 A GB 837896A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulley
- belt
- clutch member
- hand wheel
- screwed
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/22—Friction clutches with axially-movable clutching members
- F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
- F16D13/46—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs in which two axially-movable members, of which one is attached to the driving side and the other to the driven side, are pressed from one side towards an axially-located member
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/10—Electrical or electromagnetic drives
- D05B69/12—Electrical or electromagnetic drives using rotary electric motors
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/30—Details
- D05B69/34—Hand-wheel clutches
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
837,896. Change-speed gear. PFAFF A.G., G. M. Dec. 18, 1956 [April 24, 1956], No. 38504/56. Class 80 (2). [Also in Group VII] A two-speed drive from a pulley 3 of an electric motor 4 to the shaft 10 of a sewing machine, comprises a first belt 2 directly connecting the motor pulley with a groove 9 in the usual hand wheel 1, and a second belt 32 running in grooves 20 in a screwed clutch member 13 and 28 in a stepped pulley carried on an adjustable countershaft 24 and having a larger groove 26 engaging the first belt 2. Low ratio, for embroidering, is obtained when the hand wheel 1 is first released from the machine shaft 10 by unscrewing the screwed clutch member 13 from a thread 15 in a sleeve 11, pinned to the shaft 10, to release clutch pressure on a disc 17. The stepped countershaft pulley 26 is then adjusted by sliding a slotted support arm 22 over a clamp-screw 8 to tighten both belts, whereupon drive from the motor pulley 3 passes through the belt 2 to the now freely rotatable hand wheel 1 and countershaft pulley 26, and from the latter through the belt 32 to the screwed clutch member 13 and thence to the shaft 10 through positive connections 16, 18, 19 on the disc 17, clutch member 13 and sleeve 11. The connection 18, 19 permits sufficient lost-motion for screwing the clutch member 13, which in this disengaged position is locked by a central screw 21. For high-speed the countershaft pulley 26 is withdrawn from the belts and the clutch member 13 is screwed into the sleeve 11 to clutch the hand wheel 1 frictionally to the sleeve 11 through the disc 17, the machine then being driven direct through the belt 2 and hand wheel 1. A jockey pulley 7, bearing on the belt 2 only, is carried on a slotted adjustable arm 6 either integral with or separate from 22 and clamped by the same screw 8.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1956P0016136 DE1004903B (en) | 1956-04-24 | 1956-04-24 | Embroidery backing for motor-driven sewing machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB837896A true GB837896A (en) | 1960-06-15 |
Family
ID=6247865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3850456A Expired GB837896A (en) | 1956-04-24 | 1956-12-18 | Improvements in or relating to sewing machines |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH343765A (en) |
DE (1) | DE1004903B (en) |
FR (1) | FR1156767A (en) |
GB (1) | GB837896A (en) |
NL (2) | NL212830A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106012349A (en) * | 2016-07-29 | 2016-10-12 | 成都卡美多鞋业有限公司 | Antiskid sewing mechanism |
-
0
- NL NL102409D patent/NL102409C/xx active
- NL NL212830D patent/NL212830A/xx unknown
-
1956
- 1956-04-24 DE DE1956P0016136 patent/DE1004903B/en active Pending
- 1956-09-14 CH CH343765D patent/CH343765A/en unknown
- 1956-09-15 FR FR1156767D patent/FR1156767A/en not_active Expired
- 1956-12-18 GB GB3850456A patent/GB837896A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106012349A (en) * | 2016-07-29 | 2016-10-12 | 成都卡美多鞋业有限公司 | Antiskid sewing mechanism |
Also Published As
Publication number | Publication date |
---|---|
DE1004903B (en) | 1957-03-21 |
NL102409C (en) | |
FR1156767A (en) | 1958-05-21 |
CH343765A (en) | 1959-12-31 |
NL212830A (en) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB837896A (en) | Improvements in or relating to sewing machines | |
GB786629A (en) | Sewing machine with hand wheel and hand wheel clutch | |
GB755067A (en) | Improvements in or relating to quick-acting connections between the presser foot andthe presser foot bar of a sewing machine | |
GB917978A (en) | Improvements in bobbin clutches for textile spinning and like spindles | |
GB497893A (en) | Improvements in or relating to sewing machines and the like | |
GB781956A (en) | Improvements in or relating to sewing machines | |
GB1255517A (en) | Improvements in or relating to bobbin winding arrangements for sewing machines | |
GB1134440A (en) | Sewing machine | |
GB808996A (en) | Improvements in or relating to change-speed gearing for sewing machines | |
GB681499A (en) | Improvements in or relating to sewing machines | |
GB1025239A (en) | Improvements in or relating to a rotating sewing machine hook | |
GB1110767A (en) | Improvements in and relating to yarn winding apparatus | |
GB1061966A (en) | Improvements relating to machines for making tufted fabrics | |
GB617743A (en) | Overload release mechanism for sewing machines | |
GB654501A (en) | Improvements in or relating to electric starting-gear for engines or machines | |
GB421383A (en) | Improved supporting means for power-transmitting devices for use with sewing and like machines | |
GB1233031A (en) | ||
GB607061A (en) | Improvements in sewing machines | |
GB1132139A (en) | Sewing machine | |
GB915719A (en) | Improvements relating to sewing machines | |
GB1307879A (en) | Sewing machines and needle carriers therefor | |
GB607902A (en) | Improvements in spinning lathes | |
GB642847A (en) | Improvements in and relating to continuous rayon spinning machines | |
GB552714A (en) | Improvements in or relating to sewing and mechanism adapted for use in sewing machines | |
GB618805A (en) | Belt and pulley driving device |