US212662A - Improvement in treadles - Google Patents

Improvement in treadles Download PDF

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Publication number
US212662A
US212662A US212662DA US212662A US 212662 A US212662 A US 212662A US 212662D A US212662D A US 212662DA US 212662 A US212662 A US 212662A
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Prior art keywords
treadles
clutches
treadle
shaft
straps
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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
    • F16H31/00—Other gearings with freewheeling members or other intermittently driving members
    • F16H31/001—Mechanisms with freewheeling members
    • 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
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1526—Oscillation or reciprocation to intermittent unidirectional motion
    • Y10T74/1542—Strap actuator
    • Y10T74/1544—Multiple acting

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  • JOHN 1 COUNCIL OF BRISTOL, NORTH CAROLINA.
  • Figure 1 is a front elevation of a treadle embodying the improvements in my invention.
  • Fig. 2 shows sectional detail views in side elevation, and
  • Fig. 3 is a sectional plan view of the treadles or foot-levers proper.
  • My invention relates to that class of treadles where a pedal-lever, or levers having straps, cords, or the like, operate in reverse ways upon clutches, which, engaging in one direction and riding idly in the other, impart to a journaled shaft a rotary movement in one direction; and the novelty consists in the con struction and arrangement of parts, as will be more fully hereinafter set forth.
  • the object of my invention is to locate the clutches in relation to the attaching portions of the pedal-levers in such a manner that a direct downward pull will be obtained on all the straps, thus avoiding sagging, uneven friction, and displacement; to locate them in relation to the shaft-bearing so that a jerking result will be avoided; and to locate them sufficiently remote from each other as to allow a free movement of the treadles.
  • the pedal-levers have inwardly-extending arms, the inner ends of which are provided with hooks to receive the flexible straps. These straps are arranged in pairs, so that the pair which is attached to one clutch is secured to the butt of one treadle-arm and to the hook of the other.
  • the pulley furnishes the engaging device, and is situated between the clutches.
  • a balance or fly wheel is secured upon each ratchets, and its arrangement in relation to the clutches and foot-levers, constitutes the important features of my invention.
  • A represents the standards, in which is journaled the shaft B. Rigid with this shaft, and about mid way thereof, is a pulley, 0, having sunk in each end a recess, 0, the outer edge of which forms a ratchet, c, which engages pawls d in the clutches 1), one of which is arranged on each side of the pulley O.
  • the circumferences of the clutches are such that they are received within the recesses c, where they revolve freely, the pawls engaging the ratchets by their gravity.
  • E represents the treadles, each having an inwardly-extending arm, F F. Between the arm F and the end of. the treadle is a space in which the arm F operates, as shown. ff
  • These straps represent the hook on the ends of the arms, adapted to receive a flexible strap.
  • These straps are designated by the letter Gr, and are arranged in pairs, two to each clutch, operating in reverse directions, one strap of each pair being secured to the heel of one treadle arm, while the other strap engages the hook of the other treadlearm.
  • VVha-t I claim as new, and desire to secure by Letters Patent, is-
  • the treadle herein described consisting of the pulley 0, having recesses c and ratchets c, the clutches D, having pawls d, straps G, treadle E, having arms F F, with hooks. f f, and the shaft B, all constructed, arranged, and adapted to operate as shown, for the purpose set forth.

Description

J. P. COUNCIL. Treadle.
No. 212,662. Patented Feb 25,1879
IVIIWJJSA 75.x 1.7V VEJVTOR M M W My 6 flTTORJVE UNITED STATE-s PATENT OFFICE.
JOHN 1 COUNCIL, OF BRISTOL, NORTH CAROLINA.
IMPROVEM ENT IN TREADLES.
Specification forming part of Letters Patent No. 212,662, dated February 25, 1879; application filed November 9, 1878.
To all whom it may concern:
Be it known that I, JOHN P. COUNCIL, of Bristol, in the county of Bladen and State of North Carolina, have invented a new and valuable Improvement in Treadles; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specificatiomand to the letters and figures of reference marked thereon.
Figure 1 is a front elevation of a treadle embodying the improvements in my invention. Fig. 2 shows sectional detail views in side elevation, and Fig. 3 is a sectional plan view of the treadles or foot-levers proper.
My invention relates to that class of treadles where a pedal-lever, or levers having straps, cords, or the like, operate in reverse ways upon clutches, which, engaging in one direction and riding idly in the other, impart to a journaled shaft a rotary movement in one direction; and the novelty consists in the con struction and arrangement of parts, as will be more fully hereinafter set forth.
The object of my invention is to locate the clutches in relation to the attaching portions of the pedal-levers in such a manner that a direct downward pull will be obtained on all the straps, thus avoiding sagging, uneven friction, and displacement; to locate them in relation to the shaft-bearing so that a jerking result will be avoided; and to locate them sufficiently remote from each other as to allow a free movement of the treadles.
In carrying out my invention I employ a pulley, rigid with the driving-shaft, arranged between the two clutches, and provide it with ratchets, which are located on each end and engage the pawls of the clutches.
The pedal-levers have inwardly-extending arms, the inner ends of which are provided with hooks to receive the flexible straps. These straps are arranged in pairs, so that the pair which is attached to one clutch is secured to the butt of one treadle-arm and to the hook of the other.
The pulley furnishes the engaging device, and is situated between the clutches.
A balance or fly wheel is secured upon each ratchets, and its arrangement in relation to the clutches and foot-levers, constitutes the important features of my invention.
Referring 'to the drawings, A represents the standards, in which is journaled the shaft B. Rigid with this shaft, and about mid way thereof, is a pulley, 0, having sunk in each end a recess, 0, the outer edge of which forms a ratchet, c, which engages pawls d in the clutches 1), one of which is arranged on each side of the pulley O. The circumferences of the clutches are such that they are received within the recesses c, where they revolve freely, the pawls engaging the ratchets by their gravity.
E represents the treadles, each having an inwardly-extending arm, F F. Between the arm F and the end of. the treadle is a space in which the arm F operates, as shown. ff
represent the hook on the ends of the arms, adapted to receive a flexible strap. These straps are designated by the letter Gr, and are arranged in pairs, two to each clutch, operating in reverse directions, one strap of each pair being secured to the heel of one treadle arm, while the other strap engages the hook of the other treadlearm.
The operation of my invention is obvious.
I am aware that mechanism actuated by treadles and running on the same horizontal shaft as the balance has been connected with the balance -wheel by a clutch and a crank-pin, as in the patent to A. B. Shaw, No. 134,820, of January 14, 1873, and this con struction I do not seek to cover in this appli cation.
VVha-t I claim as new, and desire to secure by Letters Patent, is-
The treadle herein described, consisting of the pulley 0, having recesses c and ratchets c, the clutches D, having pawls d, straps G, treadle E, having arms F F, with hooks. f f, and the shaft B, all constructed, arranged, and adapted to operate as shown, for the purpose set forth.
In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.
JOHN PIGKET COUNCIL.
Witnesses:
E. O. PATE, W. (J. GoUNorL.
US212662D Improvement in treadles Expired - Lifetime US212662A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050228818A1 (en) * 2004-04-09 2005-10-13 Ravi Murthy Method and system for flexible sectioning of XML data in a database system
US20050228828A1 (en) * 2004-04-09 2005-10-13 Sivasankaran Chandrasekar Efficient extraction of XML content stored in a LOB
US20070250527A1 (en) * 2006-04-19 2007-10-25 Ravi Murthy Mechanism for abridged indexes over XML document collections

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050228818A1 (en) * 2004-04-09 2005-10-13 Ravi Murthy Method and system for flexible sectioning of XML data in a database system
US20050228828A1 (en) * 2004-04-09 2005-10-13 Sivasankaran Chandrasekar Efficient extraction of XML content stored in a LOB
US20070250527A1 (en) * 2006-04-19 2007-10-25 Ravi Murthy Mechanism for abridged indexes over XML document collections

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