US142504A - Improvement in the modes of regulating speed in machinery - Google Patents
Improvement in the modes of regulating speed in machinery Download PDFInfo
- Publication number
- US142504A US142504A US142504DA US142504A US 142504 A US142504 A US 142504A US 142504D A US142504D A US 142504DA US 142504 A US142504 A US 142504A
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- United States
- Prior art keywords
- pulley
- idle
- pulleys
- modes
- machinery
- 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 - Lifetime
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- 230000001105 regulatory Effects 0.000 title description 4
- 241001274613 Corvus frugilegus Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000002093 peripheral Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
Images
Classifications
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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
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
- F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
- F16H15/16—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface
- F16H15/18—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface externally
- F16H15/20—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface externally co-operating with the outer rim of the member A, which is perpendicular or nearly perpendicular to the friction surface of the member B
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- 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
- Y10T74/20012—Multiple controlled elements
- Y10T74/20018—Transmission control
- Y10T74/20055—Foot operated
Definitions
- leys including an intermediate or idle pulley
- the invention consists in certain novel combinations of devices for controlli n gthe action of said means, including a laterally-adjustable treadle and a frame arranged to rock in a'plane which is transverse to the axis of the idle-pulley, aswell as to move in a direction parallel to the axis thereof.
- Figure l represents a vertical section on the irregular line .fr Fig. 2, of an apparatus or combination of mechanism embodying my invention.
- Fig. 2 is a horizontal section on the line y y of the same.
- A represents the table, stand, or bench of a Sewing-machine, or on which any number of sewing-machines may be arranged side by side at suitable distances apart, and which are driven from ahorizontal main and power shaft, B.
- This shaft which may be supported in bearings altogether distinct from the rest of the mechanism, has secured on it a drivingpulley, C, for each machine, which pulley serves to give motion, through friction by direct contact, to an idle-pulley, D, that in its turn serves to communicate motion in a similar manner to a pulley, E, on a shaft, F, from which motion is conveyed by belt to a sewingmachine on the table A above.
- the shaft/B tact on or against the pulleys O and E when it is required to operate the machine.
- the arrangement here shown represents the idle-pulley D as arranged above, but the latter might be arranged to bear against the lower portions of the peripheries of the pulleys G and E 5 or the same shaft B and pulley O might be used to operate double sets of -idle-pulleys D, arranged the one above and the other below, to communicate motion in appropriate directions to double sets of pulleys E and shafts F, for working double rows or sets of sewing-machines on opposite sides of the main shaft B.
- the pulleys O and E are of a reverse conical form or arrangement in relation with each other and the idle-pulley D of a'double or -reverse conical shape, to givel the latter a wide or sufficient peripheral bearing on both pulleys G and E.
- the object of using conical pulleys is to give an accelerated motion, through the idle-pulley D, from the shaft B or its pulley G, to the shaft F or its pulley E, by laterally moving the idle-pulley D from the smaller end of the pulley C toward the larger end of the latter and smaller end of the pulley E, as shown by full and dotted lines in Fig. 2, in order that a slow motion may be communicated to the sewing-machine at starting, and
- the idlepulley D is carried by a rocking frame constructed to provide for bringing said pulley in contact with pulleys C and E, as represented by dotted lines in Fig. 1, and, where a lateral adjustment of the idle-pulley is required, of moving it laterally.
- theidlepulley D is carried by the one arm of a lever, I, having an intermediate fulcrum, b, in a rocking arm or frame, K, whose center of motion is in common with a rod, c, ⁇ which is free to turn in bearings d ol, and is capable of longitudinal movement to provide for lateral adjustmentof the idle-pulley.
- the lever I when
- the idle-pulley is arranged above, may be connected with the treadleL, by which said pul- FIC.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Description
y L. H. OLMSTE. Modes of Regulating Sped in achi'nery. N0. 142,504. `Patenifed Septem-ber2,1873.
, V fw l AM. Haro -ur//amf//lc I ca, M wam/ms may LEVERETT H. OLMSTED, OF BROOKLYN, NEW YORK. i
IMPROVEMENT iN THE MODES OFREGULATING SPEED IN MACHINERY.
' Specification forming part of Letters Patent No. 142,504, dated September 2, 1`873; application filed April 9, 1873.
leys, including an intermediate or idle pulley,
whichis made capable of adj ustment to receive and transmit motion at variable distances from the centers of the other pulleys. The invention consists in certain novel combinations of devices for controlli n gthe action of said means, includinga laterally-adjustable treadle and a frame arranged to rock in a'plane which is transverse to the axis of the idle-pulley, aswell as to move in a direction parallel to the axis thereof. v
Although applicable to other machines or purposes, it will suffice here to describe the invention as used for the running of sewingmachines.
In the accompanying drawing, which forms part of this specification, Figure l represents a vertical section on the irregular line .fr Fig. 2, of an apparatus or combination of mechanism embodying my invention. Fig. 2 is a horizontal section on the line y y of the same.
Similar letters of reference indicate corresponding parts.
A represents the table, stand, or bench of a Sewing-machine, or on which any number of sewing-machines may be arranged side by side at suitable distances apart, and which are driven from ahorizontal main and power shaft, B. This shaft, which may be supported in bearings altogether distinct from the rest of the mechanism, has secured on it a drivingpulley, C, for each machine, which pulley serves to give motion, through friction by direct contact, to an idle-pulley, D, that in its turn serves to communicate motion in a similar manner to a pulley, E, on a shaft, F, from which motion is conveyed by belt to a sewingmachine on the table A above. The shaft/B tact on or against the pulleys O and E when it is required to operate the machine. The arrangement here shown represents the idle-pulley D as arranged above, but the latter might be arranged to bear against the lower portions of the peripheries of the pulleys G and E 5 or the same shaft B and pulley O might be used to operate double sets of -idle-pulleys D, arranged the one above and the other below, to communicate motion in appropriate directions to double sets of pulleys E and shafts F, for working double rows or sets of sewing-machines on opposite sides of the main shaft B. The pulleys O and E are of a reverse conical form or arrangement in relation with each other and the idle-pulley D of a'double or -reverse conical shape, to givel the latter a wide or sufficient peripheral bearing on both pulleys G and E. The object of using conical pulleys is to give an accelerated motion, through the idle-pulley D, from the shaft B or its pulley G, to the shaft F or its pulley E, by laterally moving the idle-pulley D from the smaller end of the pulley C toward the larger end of the latter and smaller end of the pulley E, as shown by full and dotted lines in Fig. 2, in order that a slow motion may be communicated to the sewing-machine at starting, and
a gradually-quickening or quicker one after the machine has been set going. The idlepulley D is carried by a rocking frame constructed to provide for bringing said pulley in contact with pulleys C and E, as represented by dotted lines in Fig. 1, and, where a lateral adjustment of the idle-pulley is required, of moving it laterally. To these ends theidlepulley D is carried by the one arm of a lever, I, having an intermediate fulcrum, b, in a rocking arm or frame, K, whose center of motion is in common with a rod, c, `which is free to turn in bearings d ol, and is capable of longitudinal movement to provide for lateral adjustmentof the idle-pulley. The lever I,when
the idle-pulley is arranged above, may be connected with the treadleL, by which said pul- FIC.
ley is thrown into driving contact with the pulleys C and E, by means of a chain or cord, c, and pulley f, With freedom for the treadle to swing laterally in common with the lever I and frame K, by means of a hooked connection, M,which also provides for the independent upand-down movement of the treadle, to bring the idle-pulley D in contact with the pulleys (l and E, and to admit of its freedom from contact, when required, its freedom from contact taking place by means of a spring, S, or Weight suitably applied to operate with like effect whenever the foot is moved from the treadle. By means, too, of the lever carrying the idlepulley and rocking frame, forward driving motion of the shaft B in direction of the arrow z causes the pulley C to force or press the idlepulley D, when the latter is brought down by the treadle, into hard driving contact with the pulley E, so that there can be no slip; but when the driving-shaft is run backward, then the pulley G exerts a driving action on the idle-pulley D away from the pulley E, which allows of slip, and so prevents, or tends to prevent, the sewing-machine from being run backward, even though the foot be kept down on the treadle. When the idle-pulley D is arranged beneath the pulleys G and E, then the connection ofthetreadle with the rocking frame or lever carrying the idle-pulley must be mediiied to snit..
What is here claimed, and desired to be secured by Letters Patent, is-t 1. The combination of the laterally-adjustable treadle L with the idle-pulley D, the power-shaft B, the tapering driving-pulley C, and the reversely taper driven pulley E, substantially as specified.
2. The combination, with the conical pulleys C E, the idle-pulley D, and the lever I, of the Vtrarne K, arranged to rook in a plane which is transverse to the axis of the idle-pulley, and to move in a direction parallel to the axis therecf, essentially as and for the purposes herein set forth.
L. H. OLMSTED.
Y TiVitnesses:
HENRY T. BROWN, MICHAEL RYAN.
Publications (1)
Publication Number | Publication Date |
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US142504A true US142504A (en) | 1873-09-02 |
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US142504D Expired - Lifetime US142504A (en) | Improvement in the modes of regulating speed in machinery |
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US (1) | US142504A (en) |
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- US US142504D patent/US142504A/en not_active Expired - Lifetime
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