US184598A - Improvement in machines for converting motion - Google Patents

Improvement in machines for converting motion Download PDF

Info

Publication number
US184598A
US184598A US184598DA US184598A US 184598 A US184598 A US 184598A US 184598D A US184598D A US 184598DA US 184598 A US184598 A US 184598A
Authority
US
United States
Prior art keywords
wheel
pawls
pawl
arms
pivoted
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
Application number
Publication date
Application granted granted Critical
Publication of US184598A publication Critical patent/US184598A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H31/00Other gearings with freewheeling members or other intermittently driving members
    • F16H31/003Step-by-step mechanisms for rotary motion
    • F16H31/005Step-by-step mechanisms for rotary motion with pawls driven by a reciprocating or oscillating transmission member
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/15Intermittent grip type mechanical movement
    • Y10T74/1526Oscillation or reciprocation to intermittent unidirectional motion
    • Y10T74/1553Lever actuator
    • Y10T74/1555Rotary driven element
    • Y10T74/1556Multiple acting

Definitions

  • This invention relates to that class of devices which are usually operated by a foottreadle, and are employed to drive sewingmachines and other light work; and the invention consists in a smooth-faced wheel mounted upon a shaft, and having a circumferential V-shaped groove in the face thereof, in which groove, on opposite sides, two V- pointed pawls, both acting in the same direction, alternately engage.
  • pawls being, respectively, pivoted (as their fulcra) in two pairs of arms, which vibrate upon the wheelshaft as a common center, and the pawls be ing actuated by a pair of reciprocating rods, which are, respectively, pivoted to the-outer or long arm of the pawls, and to a pivot in common in the foot-treadle, by which the device is actuated, and by reason of the relative positions of the pawls, the vibrating arms, and the grooved wheel, the contact of the pawls with the wheel is assured without the use of springs or other extraneous aid.
  • Figure l is a side elevation, showing the vibrating arms raised.
  • Fig. 2 is a top or plan view.
  • Fig. 3 is a vertical section on line A B, Fig. 2; and
  • Fig. 4 is an enlarged horizontal section, taken on line C D, Fig. 1, and showing the vibrating arms in a horizontal position.
  • treadle 1 the treadle, pivoted in bracket 'I' at s, and. to this treadlerods m and m are pivoted at t.
  • treadle 1 the vibrating movement of treadle 1 will produce a simultaneous reciprocating movement of rods m and m, and pawl it being operative in the ascent, and pawl h in the descent, a continuous uniform rotary motion will be imparted to wheel f, and thence through shaft 0 and pulley e to any attached machine.
  • the counter-weights jj upon arms i serve to prevent the too sudden return movement of the arms when the pawl is raised and in position to act.

Landscapes

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

Description

A. F. EELLS.
MACHINES FOR CONVERTING MOTION.
Patented Nov.21,1876.
Fla- 2 UNITED STATES PATENT ()rrroa ALBERT F. EELLS, OF CAMDEN, MAINE, ASSIGNOR TO WILLIAM H. DOLE AND FRANK B. DOLE, OF CHELSEA, MASSACHUSETTS.
IMPROVEMENT IN MACHINES FOR CONVERTING MOTION.
Specification forming part of Letters Patent No. 184,598, dated November 21, 1876; application filed May 17, 1875.
To all whom it may concern:
Be it known that I, ALBERT F. EELLs, of Camden, in the county of Knox and State of Maine, have invented a new and useful or Improved Machine for Converting Reciprocating into Ourvilinear Motion of which the following is a specification:
This invention relates to that class of devices which are usually operated by a foottreadle, and are employed to drive sewingmachines and other light work; and the invention consists in a smooth-faced wheel mounted upon a shaft, and having a circumferential V-shaped groove in the face thereof, in which groove, on opposite sides, two V- pointed pawls, both acting in the same direction, alternately engage. These pawls being, respectively, pivoted (as their fulcra) in two pairs of arms, which vibrate upon the wheelshaft as a common center, and the pawls be ing actuated by a pair of reciprocating rods, which are, respectively, pivoted to the-outer or long arm of the pawls, and to a pivot in common in the foot-treadle, by which the device is actuated, and by reason of the relative positions of the pawls, the vibrating arms, and the grooved wheel, the contact of the pawls with the wheel is assured without the use of springs or other extraneous aid.
In the drawings, Figure l is a side elevation, showing the vibrating arms raised. Fig. 2 is a top or plan view. Fig. 3 is a vertical section on line A B, Fig. 2; and Fig. 4 is an enlarged horizontal section, taken on line C D, Fig. 1, and showing the vibrating arms in a horizontal position.
In the drawings, (t represents the bed and b b the standards. 0 is the shaft, secured in boxes 61 d, resting upon the, standards. 6 is a pulley, by which (or its equivalent) the rotation of the shaft may be transmitted to any desired point. f is the wheel, in the face of which is the groove g, in which the pawls h and h engage, as shown in Figs. 2 and 4. Pawl his pivoted in arms it by pivot is, as shown in Fig. 4. Pawl h is pivoted in arms t" i by pivot l, as shown in same figure. Both arms 5 and t" fit loosely upon shaft 0, upon which they vibrate. pivoted in pawl h at a; and m is a similar m is a connecting-rod,
rod, pivoted to pawl h at 0. p is the treadle, pivoted in bracket 'I' at s, and. to this treadlerods m and m are pivoted at t. Thus the vibrating movement of treadle 1) will produce a simultaneous reciprocating movement of rods m and m, and pawl it being operative in the ascent, and pawl h in the descent, a continuous uniform rotary motion will be imparted to wheel f, and thence through shaft 0 and pulley e to any attached machine.
The distance from the pivot uniting the pawls with the vibrating arms to the V end of the pawl being greater than the distance from such pivot to the bottom of the groove, measuring in a direct line from such pivot to the center of shaft 0, therefore the ends of the pawls are not in line with such pivot and axis; but a line passing through the pivot and end of the pawl would pass between the axis and periphery of the wheel, so that the rising movement of rod m and the falling movement of rod m, acting upon the leverage of their respective pawls, serve to force 1 'the wedge of the pawls into the groove, and
thereby carry the wheel along with the pawl. The counter-weights jj upon arms i serve to prevent the too sudden return movement of the arms when the pawl is raised and in position to act. g
1 do not claim, broadly, either two pawls operating alternately and by a single treadle, nor two pawls operating alternately upon opposite sides of the same wheel, nor do I claim, broadly, a single pawl operating upon the periphery of a wheel; but
What I do claim is 1. In combination with the grooved wheel f, the angular pawl h, vibrating arms t i, and reciprocating connecting-rod m, when the arms are pivoted upon the axis of the wheel, and the angular pawl is pivoted to the arms and the connecting-rod, relatively to each other and the wheel, as described, whereby the angular pawl is free to move in one direction disconnected from. the wheel, but, by virtue of its leverage and relative position, rigidly engages the wheel when moved in the other.
direction, as described and shown.
2. In combination with the grooved wheel 1, the two pairs of arms it and 'i i, pivoted I a l 184,598
upon the axis of the wheel, the angular pawls t andh, and simultaneously'acting connecting=r0ds m and m, when the angular pawls are pivoted to the arms and the connectingrods, relatively to each other and the wheel,
as described, whereby the angular pawls are Free alternately to move in one direction dis- :onnected from* the wheelfbat, by virtne oftheir leverage and relative positiomri'gidly engage the wheel when moving in the opposite direction, so as to produce a continuous rotary motion of the wheel, as described.
ALBERT F. EELLS.
Witnesses:
HENRY K. PORTER, EUGENE HUMPHREY.
US184598D Improvement in machines for converting motion Expired - Lifetime US184598A (en)

Publications (1)

Publication Number Publication Date
US184598A true US184598A (en) 1876-11-21

Family

ID=2254003

Family Applications (1)

Application Number Title Priority Date Filing Date
US184598D Expired - Lifetime US184598A (en) Improvement in machines for converting motion

Country Status (1)

Country Link
US (1) US184598A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120161360A1 (en) * 2010-12-27 2012-06-28 Kojima Press Industry Co., Ltd. Injection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120161360A1 (en) * 2010-12-27 2012-06-28 Kojima Press Industry Co., Ltd. Injection device
US8721324B2 (en) * 2010-12-27 2014-05-13 Kojima Press Industry Co., Ltd. Injection device

Similar Documents

Publication Publication Date Title
US184598A (en) Improvement in machines for converting motion
US792154A (en) Aeronautic apparatus.
US164212A (en) Improvement in treadle mechanisms for printing-presses and other purposes
US588698A (en) Bicycle
US867418A (en) Mechanical movement.
US150351A (en) Improvement in iviechamical movements
US1239169A (en) Mechanical movement.
US746865A (en) Speed-recorder.
US10382A (en) Powek-loom
US119735A (en) Improvement in mechanical movements
US226529A (en) Thomas e
US344163A (en) candi
US564158A (en) perkins
US492916A (en) Windmill
US424510A (en) Mechanism for converting and transmitting motion from windmills
US141928A (en) Siviprovement
US837398A (en) Power-transmitting means.
US1011426A (en) Clutch mechanism.
US64490A (en) John christley
US446318A (en) Mechanical movement
US562902A (en) Mechanical motor
US67275A (en) Improvement in saw-mills
US925564A (en) Mechanical movement.
US300894A (en) Motor
US592581A (en) blagq