US140982A - Improvement in balance-wheels for sewing-machines - Google Patents

Improvement in balance-wheels for sewing-machines Download PDF

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US140982A
US140982A US140982DA US140982A US 140982 A US140982 A US 140982A US 140982D A US140982D A US 140982DA US 140982 A US140982 A US 140982A
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sewing
wheel
machines
improvement
ratchet
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    • 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
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/08—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
    • F16D41/086—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action the intermediate members being of circular cross-section and wedging by rolling
    • F16D41/088—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action the intermediate members being of circular cross-section and wedging by rolling the intermediate members being of only one size and wedging by a movement not having an axial component, between inner and outer races, one of which is cylindrical
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19851—Gear and rotary bodies
    • Y10T74/19856—Laterally-spaced wheels

Definitions

  • FIGS. 1 and 2 of the drawings are representations of top views of my invention.
  • Fig. 3 is a sectional view of the same.
  • Figs. 4 and and 5 are detail views.
  • My invention relates to forward motions on sewing-machines; and it consists of a loose fly-wheel on a sewin g-machine shaft with such ratchet connection that the said fly-wheel may be coupled to the shaft only for forward mo tion, but will at all times turn loosely when the motion is reversed; also a stopping-lever, which throws the ratchet out of connection so that the fly-Wheel may be revolved either way without effecting theshaft.
  • the object of my invention is to avoid a backward movement of the sewingmachine shaft and all the connected parts, and to provide an independent forward movement of the fly-wheel for the purpose of winding the bobbins of the sewingmachine.
  • A represents the shaft of a sewing-machine, which is a plain straight rod, and which has a journal-bearing, a, in the sewing-machine:
  • the end of the said shaft projects beyond the said journal-bearing, and is there provided with a sleeve, B, which is fastened to it by a set-screw, b.
  • the fly-wheel may be of any ordinary construction to suit the purpose of applying my improvement.
  • the one represented in the drawing has a driving-pulley, D, connected with it.
  • the fly-Wheel O is provided with a recess or chamber, E, to the bottom of which a pawl, F, is fastened by a pivot, e, and which is closed by a lid, G, with the aid of set-screws g.
  • the hub c of the fiy-wheel O is longitudinally secured between the bearing a and the ratchet-wheel H, which is fastened to the end face of the shaft A by a set-screw, h.
  • the facial bearing of the sleeve B against the sewing-machine bearing a and the facial bearing of the crank-plate at the other end of the shaft A insure steadiness of the said shaft A in a longitudinal direction.
  • the shaft A cannot be constructed otherwise than straight to suit the construction of the sewing-machine; hence the sleeve B is preferable to a step or collar.
  • the pawl F is provided with a onesided tooth, f, which looks the ratchet-wheel H with the pawl with the forward motion, and slides over the ratchet-wheel with the back motion, and is caused to bear against the ratchet-wheel by a spring, f, fastened to the back of it.
  • the pawl F is moved out of gear with the ratchet wheel H by turning a key, I, in its fixed bearings e on the fly-wheel, and the lid Gr so that its wing t enters the notch i in the pawl F, and lifts the same until after passing the dead-lever it comes in contact with the nose t which serves to lock it.
  • This latter arrangement is intended for the winding of bobbins, and serves to avoid the wearing and noise of the ratchets while the sewing machinery is standing still.
  • Fig. 2 shows a bobbin -winder, J operated by the fly-wheel, the ratchet connection being suspended by the key I.

Description

NITED STATES PATENT OFFICE.
DAVID Gr. WILLIAMS, OF YORK, PENNSYLVANIA.
IMPROVEMENT IN BALANCE-WHEELS FOR SEWING-MACHINES.
Specification forming part of Letters Patent No. 140,982, dated July 15, 1873; application filed J nne 7, 1873.
To all whom it may concern:
Be it known that I, DAVID G. WILLIAMS, of York, in the county of York and State of Pennsylvania, have invented a new and-valuable Improvement in Sewing-Machines; and
I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference bein g had to the annexed drawin gs'makin g apart of this specification and tothe letters and figures of reference marked thereon.
Figures 1 and 2 of the drawings are representations of top views of my invention. Fig. 3 is a sectional view of the same. Figs. 4 and and 5 are detail views.
My invention relates to forward motions on sewing-machines; and it consists of a loose fly-wheel on a sewin g-machine shaft with such ratchet connection that the said fly-wheel may be coupled to the shaft only for forward mo tion, but will at all times turn loosely when the motion is reversed; also a stopping-lever, which throws the ratchet out of connection so that the fly-Wheel may be revolved either way without effecting theshaft. The object of my invention is to avoid a backward movement of the sewingmachine shaft and all the connected parts, and to provide an independent forward movement of the fly-wheel for the purpose of winding the bobbins of the sewingmachine.
In the drawings, A represents the shaft of a sewing-machine, which is a plain straight rod, and which has a journal-bearing, a, in the sewing-machine: The end of the said shaft projects beyond the said journal-bearing, and is there provided with a sleeve, B, which is fastened to it by a set-screw, b. A fiy-wheel,
G, is fitted to the said sleeve so as to turn freely on it. The fly-wheel may be of any ordinary construction to suit the purpose of applying my improvement. The one represented in the drawing has a driving-pulley, D, connected with it. The fly-Wheel O is provided with a recess or chamber, E, to the bottom of which a pawl, F, is fastened by a pivot, e, and which is closed by a lid, G, with the aid of set-screws g. The hub c of the fiy-wheel O is longitudinally secured between the bearing a and the ratchet-wheel H, which is fastened to the end face of the shaft A by a set-screw, h. The facial bearing of the sleeve B against the sewing-machine bearing a and the facial bearing of the crank-plate at the other end of the shaft A insure steadiness of the said shaft A in a longitudinal direction. The shaft A cannot be constructed otherwise than straight to suit the construction of the sewing-machine; hence the sleeve B is preferable to a step or collar. The pawl F is provided with a onesided tooth, f, which looks the ratchet-wheel H with the pawl with the forward motion, and slides over the ratchet-wheel with the back motion, and is caused to bear against the ratchet-wheel by a spring, f, fastened to the back of it.
If a loose right-and-left motion of the flywheel is desired the pawl F is moved out of gear with the ratchet wheel H by turning a key, I, in its fixed bearings e on the fly-wheel, and the lid Gr so that its wing t enters the notch i in the pawl F, and lifts the same until after passing the dead-lever it comes in contact with the nose t which serves to lock it. This latter arrangement is intended for the winding of bobbins, and serves to avoid the wearing and noise of the ratchets while the sewing machinery is standing still.
Fig. 2 shows a bobbin -winder, J operated by the fly-wheel, the ratchet connection being suspended by the key I.
What I claim as new, and desire to secure by Letters Patent, is-- I The combination, with the shaft of a sewing-machine and a loose fiy-wheel thereon, of a ratchet-connection, operating in one direction only, and. a key-tumbler for disengaging said ratchet connection when desired, as specified.
In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.
DAVID G. WILLIAMS.
Witnesses:
GEORGE E. UPHAM, GHA. B. STEELE.
US140982D Improvement in balance-wheels for sewing-machines Expired - Lifetime US140982A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433336A (en) * 1945-10-04 1947-12-30 Madel A Bordelon Manually operated overrunning clutch
US4583419A (en) * 1984-11-09 1986-04-22 The Singer Company Torque transmitting handwheel clip-on member for a sewing machine
US6138593A (en) * 1999-12-30 2000-10-31 G.M. Pfaff Aktiengesellschaft Sewing machine with a balance wheel
US20060043360A1 (en) * 2004-09-02 2006-03-02 Mu-Hyun Kim Organic light emitting display with circuit measuring pad and method of fabricating the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433336A (en) * 1945-10-04 1947-12-30 Madel A Bordelon Manually operated overrunning clutch
US4583419A (en) * 1984-11-09 1986-04-22 The Singer Company Torque transmitting handwheel clip-on member for a sewing machine
US6138593A (en) * 1999-12-30 2000-10-31 G.M. Pfaff Aktiengesellschaft Sewing machine with a balance wheel
US20060043360A1 (en) * 2004-09-02 2006-03-02 Mu-Hyun Kim Organic light emitting display with circuit measuring pad and method of fabricating the same

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