GB753032A - Improvements in sewing machines - Google Patents

Improvements in sewing machines

Info

Publication number
GB753032A
GB753032A GB5646/54A GB564654A GB753032A GB 753032 A GB753032 A GB 753032A GB 5646/54 A GB5646/54 A GB 5646/54A GB 564654 A GB564654 A GB 564654A GB 753032 A GB753032 A GB 753032A
Authority
GB
United Kingdom
Prior art keywords
spindle
damper
machine
sprocket
feb
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
Application number
GB5646/54A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Special Machine Co
Original Assignee
Union Special Machine Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Union Special Machine Co filed Critical Union Special Machine Co
Publication of GB753032A publication Critical patent/GB753032A/en
Expired legal-status Critical Current

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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/30—Details
    • D05B69/32—Vibration-minimising devices

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

753,032. Torsional - vibration dampers. UNION SPECIAL MACHINE CO. Feb. 26, 1954 [Feb. 26, 1953], No. 5646/54. Class 108 (3). A dynamic damper for damping torsional vibrations in the shaft 27 of a sewing-machine, is embodied in a sprocket 30 driven by a toothed belt 43. An inertia mass 81 is mounted on the sprocket through the intermediary of a rubber bushing 84. The damper may be tuned to the critical frequency of the shaft 27 by rotating a knurled wheel 92 on a spindle 91. This results in the radial adjustment of weights 89, 90 which are in threaded engagement with the spindle 91 and are slidable in recesses on the face of the inertia mass 81. The spindle 91 is also adjustable by the engagement of screw-driver slots formed in each of its ends. A resilient plate 93 is bolted to the mass 81 and bears on the spindle 91 to maintain its setting. A similar damper (Fig. 6, not shown) is embodied in a driving pulley of the machine. This damper is mounted within a recess formed in one side face of the pulley and is provided with a removable cover-plate. Specifications 687,812, [Group VII], 743,637 and 753,033 are referred to.
GB5646/54A 1953-02-26 1954-02-26 Improvements in sewing machines Expired GB753032A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US339111A US2741198A (en) 1953-02-26 1953-02-26 Vibration damping means for sewing machines

Publications (1)

Publication Number Publication Date
GB753032A true GB753032A (en) 1956-07-18

Family

ID=23327547

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5646/54A Expired GB753032A (en) 1953-02-26 1954-02-26 Improvements in sewing machines

Country Status (3)

Country Link
US (1) US2741198A (en)
DE (1) DE938285C (en)
GB (1) GB753032A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327975A (en) * 1991-04-08 1994-07-12 Rotating Production Systems, Inc. Tubing anchor catcher with rotating mandrel
JP2000245985A (en) * 1999-02-26 2000-09-12 Tokai Ind Sewing Mach Co Ltd Power transmission device of sewing machine
ATE542039T1 (en) * 2005-03-26 2012-02-15 Schaeffler Technologies Gmbh COMPOUND TRANSMISSION
US8997669B1 (en) 2014-10-16 2015-04-07 Handi Quilter, Inc. Thread tensioner for a sewing machine
US9394639B2 (en) 2014-10-16 2016-07-19 Handi Quilter, Inc. Motorized thread tensioner for a sewing machine
US9809912B2 (en) * 2014-10-16 2017-11-07 Handi Quilter, Inc. Vibration reduction mechanism for a sewing machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US394435A (en) * 1888-12-11 Speed-regulator for shafting
US131782A (en) * 1872-10-01 Improvement in balance-wheels
DE346094C (en) * 1921-01-29 1921-12-24 Bielefelder Naehmaschinenfabri Hemstitch sewing machine
US2028459A (en) * 1930-05-26 1936-01-21 Kjaer Viggo Axel Device for reducing torsional vibrations in shafts
US2267581A (en) * 1940-01-03 1941-12-23 Singer Mfg Co Lubricating means for sewing machines
US2450701A (en) * 1941-07-11 1948-10-05 Nash Kelvinator Corp Vibration dampener
US2411373A (en) * 1944-03-09 1946-11-19 Westinghouse Electric Corp Torsional vibration absorber
US2512735A (en) * 1945-08-17 1950-06-27 Schwitzer Cummins Company Vibration dampener

Also Published As

Publication number Publication date
DE938285C (en) 1956-01-26
US2741198A (en) 1956-04-10

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