US454814A - W it nesses - Google Patents

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Publication number
US454814A
US454814A US454814DA US454814A US 454814 A US454814 A US 454814A US 454814D A US454814D A US 454814DA US 454814 A US454814 A US 454814A
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United States
Prior art keywords
rocker
shaft
steam
head
cross
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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
    • F16H21/22—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric
    • F16H21/32—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric with additional members comprising only pivoted links or arms
    • 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
    • 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
    • Y10T74/18176—Crank, pitman, lever, and slide

Definitions

  • AMBROSE EVERETT PARSONS OF NEIV BERNE, NORTH CAROLINA, ASSIGNO R OF ONE-HALF TO CHARLES R. F. EDIVARDS, OF SAME PLACE.
  • the object of this invention is to obviate the dead-centers in a singlecylinder engine; and it consists in employing, with a single cylinder, a double crank-shaft with its cranks at a right angle and in attaching to the crosshead a pivoted rocker or beam and connecting the ends of the said rocker to the crankpins by means of rods having universal or knuckle joints.
  • A is a steam-cylinder
  • B the piston-rod, which passes through a stuffing-box a.
  • O is a cross-head, into which the lower end of the piston-rod is secured.
  • the ends of the cross-head are adapted to bear against suitable guides, which, together wit-h the frame of the engine which supports them, are not shown.
  • D is the rocker or beam pivoted to the cross- 3 5 head 0 by means of a bolt 1). The ends of the rocker terminate in pins 0.
  • E is a double crank-shaft, the cranks of which are denoted by F and G.
  • the rocker is directly over the shaft E and extends longitudinally of it. In other words, in the vibration of the rocker its ends are all times over the shaft.
  • crank-pins d and e are connected to the pins 0 of the rocker by means of rods H and I, and the boxes are of the universal-joint description in order that the rods may vibrate in different directions. Through the medium of the pivoted rocker one crank will help the other over the dead-center, and any irregular- 5o ity in motion will be taken up by the vibrating rocker.
  • I claim as my invention In combination with a; steam-cylinder and a shaft having two cranks, a cross-head, a 5 5 rocker pivoted within the said cross-head, extending longitudinally of the said shaft, and connecting-rods with ball-joints at both ends, which unite the said cranks with the ends of the said rocker, substantially as and for the purpose specified.

Description

(No Model.)
A. E. PARSONS. CONNECTION FOB. STEAM ENGINES.
No. 454,814. Patented June-23, 1891.
Fig 1.
IIIIIH I HHJIIII A/VlTNEE-EE QWF JM UNITED STATES PATENT- OFFICE.
AMBROSE EVERETT PARSONS, OF NEIV BERNE, NORTH CAROLINA, ASSIGNO R OF ONE-HALF TO CHARLES R. F. EDIVARDS, OF SAME PLACE.
CONNECTION FOR STEAM-ENGINES.
' SPECIFICATION forming part of Letters Patent No. 454,814, dated June 23, 1891.
Application filed July 31, 1890- Serial No. 360,466. (No model.) I
T aZZ whom it may concern:
Be it known that I, AMBROSE EVERETT PAR-' tions for Steam-Engines, of which the following is a specification.
The object of this invention is to obviate the dead-centers in a singlecylinder engine; and it consists in employing, with a single cylinder, a double crank-shaft with its cranks at a right angle and in attaching to the crosshead a pivoted rocker or beam and connecting the ends of the said rocker to the crankpins by means of rods having universal or knuckle joints.
In the further description of the said invention which follows reference is made to the accompanying drawings, forming a part hereof, and in which Figure 1 is a partly-sectional side view of the elements of the engine above alluded to, and Fig. 2 an end View of the same.
Similar letters of reference indicate similar parts in both figures.
In the saidv drawings, A is a steam-cylinder, and B the piston-rod, which passes through a stuffing-box a.
O is a cross-head, into which the lower end of the piston-rod is secured. The ends of the cross-head are adapted to bear against suitable guides, which, together wit-h the frame of the engine which supports them, are not shown.
D is the rocker or beam pivoted to the cross- 3 5 head 0 by means of a bolt 1). The ends of the rocker terminate in pins 0.
E is a double crank-shaft, the cranks of which are denoted by F and G. The rocker is directly over the shaft E and extends longitudinally of it. In other words, in the vibration of the rocker its ends are all times over the shaft.
The crank-pins d and e are connected to the pins 0 of the rocker by means of rods H and I, and the boxes are of the universal-joint description in order that the rods may vibrate in different directions. Through the medium of the pivoted rocker one crank will help the other over the dead-center, and any irregular- 5o ity in motion will be taken up by the vibrating rocker.
I claim as my invention In combination with a; steam-cylinder and a shaft having two cranks, a cross-head, a 5 5 rocker pivoted within the said cross-head, extending longitudinally of the said shaft, and connecting-rods with ball-joints at both ends, which unite the said cranks with the ends of the said rocker, substantially as and for the purpose specified.
AMBROSE EVERETT PARSONS.
Witnesses;
JNo. T. MADDoX, DANL. FISHER.
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