US517264A - Device for overcoming dead-centers - Google Patents

Device for overcoming dead-centers Download PDF

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Publication number
US517264A
US517264A US517264DA US517264A US 517264 A US517264 A US 517264A US 517264D A US517264D A US 517264DA US 517264 A US517264 A US 517264A
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Prior art keywords
centers
secured
bracket
dead
treadle
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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
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
    • F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
    • F16H21/18—Crank gearings; Eccentric gearings
    • F16H21/38—Crank gearings; Eccentric gearings with means for temporary energy accumulation, e.g. to overcome dead-centre positions
    • 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
    • Y10T74/18144—Overcoming dead center

Definitions

  • This invention relates to a device for overcoming dead-centers.
  • A represents the frame of the machine, R the drivingwheel, K the crank,P the treadle, L the connecting rod from crank to treadle, and O the treadle hearing, all of which are of ordinary and well known construction and arrangement, and are simply shown as a means for carrying out my invention.
  • the eccentric C is secured to the crank shaft, a transverse 1ever B, is secured to frame A at G, the opposite end S, supported by a curved rod D, with a collar at F secured thereto, a coil spring E slid on the lower portion of curved rod D, and the end of the rod inserted through a hole provided in bracket W, secured to treadle P, the lower end of coil spring E, rests on bracket W, and collar F serves to give coil spring E proper tension to press transverse lever B upward, pressing disk J, against eccentric C.
  • Disk J is set slightly inclined toward the crank shaft Z with the object of the disk pressing one side of the eccentric pressing it off fromthe lower dead-center; the upper deadcenter is overcome by adjusting coil spring E at collar F.
  • An auxiliary reflexible spring H is secured to transverse lever B, at N, curved, and the lower end resting on bracket, with the point sufficiently curved and hooked over the bracket to keep it in position, for the object of adjusting transverse lever B at elliptical hole I, and to act with coil spring E, on the treadle at bracket.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Description

(No Model.)
- G. M. OURRBY.
DEVICE FOR OVERGOMI-NG DEAD CENTERS. No. 517,264. Patented Mar. 2'7, .1894.
7401771065 es. InuezT/r.
f/i v NITED CALEB CURREY, OF BAY CITY, MICHIGAN.
DEVICE FOR OVERCOMING DEAD-CENTERS.
SPECIFICATION forming part of Letters Patent No. 517,264, dated March 27, 1894. Application filed November 28, 1892. Serial No. 453,436- (No model.)
To all whom it may concern:
Be it known that I, CALEB M. CURREY, a citizen of the United States, residing at Bay City, in the county of Bay and State of Michigan, have invented certain new and useful Improvements in Devices for Overcoming Dead-Centers,of which the following is a specification, reference being had to the accompanying drawing, which shows in elevation my invention.
This invention relates to a device for overcoming dead-centers.
A, represents the frame of the machine, R the drivingwheel, K the crank,P the treadle, L the connecting rod from crank to treadle, and O the treadle hearing, all of which are of ordinary and well known construction and arrangement, and are simply shown as a means for carrying out my invention.
Referring to my invention, the eccentric C, is secured to the crank shaft, a transverse 1ever B, is secured to frame A at G, the opposite end S, supported by a curved rod D, with a collar at F secured thereto, a coil spring E slid on the lower portion of curved rod D, and the end of the rod inserted through a hole provided in bracket W, secured to treadle P, the lower end of coil spring E, rests on bracket W, and collar F serves to give coil spring E proper tension to press transverse lever B upward, pressing disk J, against eccentric C. Disk J, is set slightly inclined toward the crank shaft Z with the object of the disk pressing one side of the eccentric pressing it off fromthe lower dead-center; the upper deadcenter is overcome by adjusting coil spring E at collar F. An auxiliary reflexible spring H is secured to transverse lever B, at N, curved, and the lower end resting on bracket, with the point sufficiently curved and hooked over the bracket to keep it in position, for the object of adjusting transverse lever B at elliptical hole I, and to act with coil spring E, on the treadle at bracket.
What I claim as my invention, and desire to secure by Letters Patent, is-
The combination in a mechanical movement of the eccentric placed on the crank shaft, a transverse lever provided with an elliptical hole I, pivoted to the frame of the machine at G, with a disk pivoted at J, a curved rod secured to the opposite end S, a collar secured to the rod at F, a coil spring slipped on the lower portion, bracket W secured to the treadle and. having a hole through it, and the lower end of the rod E inserted therein, an auxiliary reflexible curved spring H, secured to transverse lever B, at N, the lower end resting on bracket W, and the point curved and hooked over, substantially as set forth.
Dated Bay City, Michigan, November 10,
CALEB M. CURREY. Witnesses:
H. M. GILLETT, I ALFRED B. LENNOX.
US517264D Device for overcoming dead-centers Expired - Lifetime US517264A (en)

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US517264A true US517264A (en) 1894-03-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3139761A (en) * 1962-07-31 1964-07-07 Electronic Specialty Co Quick reversing mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3139761A (en) * 1962-07-31 1964-07-07 Electronic Specialty Co Quick reversing mechanism

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