US175805A - Improvement in devices for converting motion - Google Patents

Improvement in devices for converting motion Download PDF

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US175805A
US175805A US175805DA US175805A US 175805 A US175805 A US 175805A US 175805D A US175805D A US 175805DA US 175805 A US175805 A US 175805A
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cam
motion
devices
bar
improvement
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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
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/025—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a friction shaft
    • 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
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • 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
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18168—Crank, lazy-tong, and slide
    • 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
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20582—Levers
    • Y10T74/20588—Levers toggle
    • Y10T74/20594—Lazy tongs

Definitions

  • My invention relates to means for producing motion in any direction at the will of the operatorsuch, for example, as is required for the feed of a sewing-machine, to sew in any direction without turning the work, and for other like purposes. It consists of a cam in a tubular or other support capable of turning on its axis, and surrounded by a reciprocating ring, to any part of which the cam is presented by the turning of the tube, so as to be worked in any direction.
  • the motion is transm ,mitted in some cases from the cam by an arm to which one end of a bar is attached, which is mounted so as to both vibrate and reciprocate, and which works the feed or other device by its other end; but as this contrivance does not in all cases give, the motion in straight lines I have devised a combination of compound parallelbar mechanism with the cam, by which the feed or other device operated is moved in straight lines in all cases.
  • the cam is in this case contrived in double form, by which it isworked positively in both directions without spring or weight; but it may be single and be worked in one direction by a spring.
  • Figure l is a sectional elevation of my improved universal cam mechanism, with the parallel-bar contrivaiice for transmitting the motion, taken on the line w as of Fig. 1.
  • Fig. 2 is a top view of Fig. 1.
  • Fig.3 is a plan of the same, showing the arrangement of the single bar for transmitting the motion; and
  • Fig. 4 is a section of Fig. 3, taken on line y 3 Similar letters of reference indicate corresponding parts.
  • A represents the cam, which is pivoted at B within the supporting-tube O, which is capable of turning freely on its axis; but the support need 'not necessarily be tubular.
  • D is the ring or hollow cross-head for working the cam; it is fitted on the exterior of the tube so as to slide freely, and will in practice be operated by any approved means.
  • the pi bjection's E of the cam extend out through the slot B, one on each side of the ring, so as to be alternately worked out and in as the ring moves forward and backward along the curve G.
  • the tube will have worm-gears or other devices connected with it for turning and setting, according to them direction it is wanted to work the cam, and an indicator may be applied to assist in adjusting it accurately.
  • H is the arm for transmitting the H10- tion from the cam, said arm being connected to one end of the lazy-tongs or parallel-bar contrivancc I, fixed on a pivot at J, and designed to connect at its other end, K, with the feed or other device to be worked.
  • the parallel-bar mechanism will be used when more exact work is required; but for such as is not importantin this respect a simple bar, L, will be used, said bar being arranged in a guide, M, in which it can slide lengthwise, the guide being fixed on a pivot, N, so that it can oscillate; or the bar may be fixed on the pivot N by a slot, 0, without the guide.
  • the bar L When the bar L is to be used to work a feeder for sewing-machines it may bejointed, as at P, or in any other approved way, in order that it may rise and fall to allow of the up'and-down motion of the feeder, and it may be employed for giving that motion also by a cam, Q, if desired.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Description

C. E. WILLIS.
DEVICE FOR CONVERTING MOTION.
1%. 175,805. Patented Apr114..1876,
A 1 ml: 1 mm um METERS. PHOYO LITNDGRAPHER. WASHING ON, n 6
UNITED STATES PATENT QFFICE.
CHARLES E. WILLIS, or NEW YORK, N. Y."
IMPROVEMENT IN DEVICES FOR CONVERTING MOTION.
Specification forming part of Letters Patent No. 175,805, dated April 4, 1876; application filed February 21, 1876.
To all whom it may concern:
Be it known that I, CHARLES E. WILLIS, of the city, county, and State of New York, have invented a new and Improved Universal Cam-Motion, of which the followingis aspecification:
My invention relates to means for producing motion in any direction at the will of the operatorsuch, for example, as is required for the feed of a sewing-machine, to sew in any direction without turning the work, and for other like purposes. It consists of a cam in a tubular or other support capable of turning on its axis, and surrounded by a reciprocating ring, to any part of which the cam is presented by the turning of the tube, so as to be worked in any direction. The motion is transm ,mitted in some cases from the cam by an arm to which one end of a bar is attached, which is mounted so as to both vibrate and reciprocate, and which works the feed or other device by its other end; but as this contrivance does not in all cases give, the motion in straight lines I have devised a combination of compound parallelbar mechanism with the cam, by which the feed or other device operated is moved in straight lines in all cases. The cam is in this case contrived in double form, by which it isworked positively in both directions without spring or weight; but it may be single and be worked in one direction by a spring.
Figure l is a sectional elevation of my improved universal cam mechanism, with the parallel-bar contrivaiice for transmitting the motion, taken on the line w as of Fig. 1. Fig. 2 is a top view of Fig. 1. Fig.3 is a plan of the same, showing the arrangement of the single bar for transmitting the motion; and Fig. 4 is a section of Fig. 3, taken on line y 3 Similar letters of reference indicate corresponding parts.
A represents the cam, which is pivoted at B within the supporting-tube O, which is capable of turning freely on its axis; but the support need 'not necessarily be tubular. D is the ring or hollow cross-head for working the cam; it is fitted on the exterior of the tube so as to slide freely, and will in practice be operated by any approved means. The pi bjection's E of the cam extend out through the slot B, one on each side of the ring, so as to be alternately worked out and in as the ring moves forward and backward along the curve G. The tube will have worm-gears or other devices connected with it for turning and setting, according to them direction it is wanted to work the cam, and an indicator may be applied to assist in adjusting it accurately. H is the arm for transmitting the H10- tion from the cam, said arm being connected to one end of the lazy-tongs or parallel-bar contrivancc I, fixed on a pivot at J, and designed to connect at its other end, K, with the feed or other device to be worked.
The parallel-bar mechanism will be used when more exact work is required; but for such as is not importantin this respect a simple bar, L, will be used, said bar being arranged in a guide, M, in which it can slide lengthwise, the guide being fixed on a pivot, N, so that it can oscillate; or the bar may be fixed on the pivot N by a slot, 0, without the guide.
When the bar L is to be used to work a feeder for sewing-machines it may bejointed, as at P, or in any other approved way, in order that it may rise and fall to allow of the up'and-down motion of the feeder, and it may be employed for giving that motion also by a cam, Q, if desired.
Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination of cam A, revolving support 0, and reciprocating ring D, substantially as specified.
2. The reciprocating ring D, combined and arranged with double cam A, having two projections, E, substantially as specified.
3. The combination of the parallel-bar frame I and the variable cam A, substantially as specified.
oHAs. E. WILLIS.
Witnesses:
'1. B. MOSHER, ALEx. F. ROBERTS.
US175805D Improvement in devices for converting motion Expired - Lifetime US175805A (en)

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