US477191A - Mechanical movement - Google Patents

Mechanical movement Download PDF

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US477191A
US477191A US477191DA US477191A US 477191 A US477191 A US 477191A US 477191D A US477191D A US 477191DA US 477191 A US477191 A US 477191A
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Prior art keywords
crank
shaft
pin
oscillating
lever
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    • 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
    • F16H25/00Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/04Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying rotary motion
    • F16H25/06Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying rotary motion with intermediate members guided along tracks on both rotary members
    • 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
    • Y10T74/18Mechanical movements
    • Y10T74/18056Rotary to or from reciprocating or oscillating
    • Y10T74/18088Rack and pinion type
    • Y10T74/18096Shifting rack
    • 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
    • Y10T74/18Mechanical movements
    • Y10T74/1836Rotary to rotary

Definitions

  • Figure 1 represents a side elevation of a mechanism embodying my invention.
  • Fig. 2 is a top view of the same.
  • Figs. 3 and 4 represent the operating parts of the mechanism in two diiferent positions.
  • the object of my invention is to provide a mechanism by which the rotary motion of one shaft may be communicated to a second and parallel shaft; and it consists of the several features illustrated in the accompanying drawings and hereinafter described.
  • a A denotes the supporting-posts, mounted upon the base B, by which the two parallel shafts O and D are supported.
  • the shaft 0 carries a belt-pulley O, by which rotary motion is imparted to the shaft, or, if required, a crank can be substituted for the belt-pulley.
  • the shaft C is provided with a crank C having a crank-pin C and also with a crank C", having a crankpin C D denotes a shaft parallel with the shaft 0 and carrying a pinion D, and also having pivoted thereon a bell-crank having arms D and D
  • the arm D is connected by a link D with the crank C, so that the rotation of the shaft C will cause an oscillating movement of the arm D
  • the arm D is provided with a stud D which enters a slot E in a lever E, connected at one end with the crank-pin C and carrying at the opposite end an annular gear E preferably formed integrally with the lever E and engaging the pinion D.
  • the mechanical movement forming the subject of my present invention is designed to effect the transmission of rotary motion from one shaft to another, and is especially designed to take the place of the sprocket-wheels and chain belt ordinarily used in bicycles, the shaft 0 representing the pedal-shaft, to which power is applied, and the shaft D representing the wheel-shaft.
  • the mechanical movement is, however, adapted to the transmission of rotary motion between shafts placed too far apart to permit a train of gearing to be used and where a belt connection is undesirable.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Description

(No Model.)
J. D. WESTGATE.
MECHANICAL MOVEMENT.
No. 477,191. Patented June 14, 1892.
UNITED STATES PATENT OFFICE.
JOSEPH D. \VESTGATE, OF \VORCESTER, MASSACHUSET' 7 S, ASSIGNOR TO CHARLES H. VOODOOCK, OF SAME PLACE, AND GEORGE ANSON XVALKER, OF BOSTON, MASSACHUSETTS.
MECHANICAL MOVEMENT.
SPECIFICATION forming part of Letters Patent No. 477,191, dated June 14, 1892.
Application filed May 13, 1891. Serial No. 392,577. (No model.)
To aid whom it may concern.-
Be it known that I, JOSEPH D. \VESTGATE, a citizen of the United States, residing at \Vorcester, in the county of \Vorcester and State of Massachusetts, have invented a new and useful Improvement in Mechanical Movements, of which the following is a specification, reference being had to the accompanying drawings, in which Figure 1 represents a side elevation of a mechanism embodying my invention. Fig. 2 is a top view of the same. Figs. 3 and 4 represent the operating parts of the mechanism in two diiferent positions.
Similar letters refer to similar parts in the several figures.
The object of my invention is to provide a mechanism by which the rotary motion of one shaft may be communicated to a second and parallel shaft; and it consists of the several features illustrated in the accompanying drawings and hereinafter described.
Referring to the drawing, A A denotes the supporting-posts, mounted upon the base B, by which the two parallel shafts O and D are supported. The shaft 0 carries a belt-pulley O, by which rotary motion is imparted to the shaft, or, if required, a crank can be substituted for the belt-pulley. The shaft C is provided with a crank C having a crank-pin C and also with a crank C", having a crankpin C D denotes a shaft parallel with the shaft 0 and carrying a pinion D, and also having pivoted thereon a bell-crank having arms D and D The arm D is connected by a link D with the crank C, so that the rotation of the shaft C will cause an oscillating movement of the arm D The arm D is provided with a stud D which enters a slot E in a lever E, connected at one end with the crank-pin C and carrying at the opposite end an annular gear E preferably formed integrally with the lever E and engaging the pinion D. As the shaft 0 is rotateda rocking and a sliding motion will be imparted to the lever E upon the stud D The sliding motion of the lever E upon the stub D will be equal to twice the radius of the crank-pin C and will take place durin g the movement of the crank-pin C from one of its (lead-centers to the other,and as the internal diameter of the annular gear less the diameter of the pinion D is equal to twice the radius of the crank-pin C the opposite sides of the annular gear E will be made to engage the pinion D as the crank-pin C assumes theposition shown in Figs. 1 and a. At the same time a rocking movement is imparted to the lever E upon the stud D in the movement of the crank-pin 0 past the centers, the extreme of the rocking movement being reached as the crank pin C reaches the quarter-throw, as shown in one position in Fig. The rotation of the shaftO through the actuating-crank C and link D i111 parts an oscillating motion to the bell-crank, by which a compound motion is imparted to the annular gear E causing its toothed edge to travel in a circular path and to remain in engagement with the teeth of the pinion D, causing the rotation of the shaft 0 to impart a rotary motion to the pinion D and shaft D.
The mechanical movement forming the subject of my present invention is designed to effect the transmission of rotary motion from one shaft to another, and is especially designed to take the place of the sprocket-wheels and chain belt ordinarily used in bicycles, the shaft 0 representing the pedal-shaft, to which power is applied, and the shaft D representing the wheel-shaft. The mechanical movement is, however, adapted to the transmission of rotary motion between shafts placed too far apart to permit a train of gearing to be used and where a belt connection is undesirable.
hat- I claim my invention, and desire to secure by Letters Patent, is-
1. The combination of a driving-shaft provided with a crank, a pivoted oscillating lever connected at one end with said crank and carrying an internal gear upon its opposite end, a driven shaft, a pinion on said driven shaft engaged by said internal gear, and a pivoted bell-crank carrying in one arm a pivot of said oscillating lever and having its other arm oppinion, an oscillating bell-crank carrying apin upon which said oscillating lever is pivoted, an oscillating lever carrying said internal gearand provided With a slot inolosing the pivotal pin carried by said bell-crank, and a d rivin g-shaft provided With a crank connected with said oscillating lever and having a sec ond crank connected by a link with said bellerank, whereby said bell-crank is oscillated,
substantially as described.
3. The combination, with a driving-crank, of an oscillating lever connected with said crank, an internal gear carried by said oscillating lever, a driven shaft, a pinion on said driven shaft engaged by said internal gear,
an oscillating arm pivoted at one end and carrying a pivotal pin upon which said oscillating lever is pivoted, and connected actuating mechanism, substantially as described, Whereby a movement is imparted to said oscillating lever conjointly With the motion imparted to said oscillating lever by its connected driving-crank, substantially as described.
4. The combination of a driving-shaft 0, provided with cranks C and C driven shaft .D, provided with a pinion D, a pivoted bellcrank having arms D D, said arm D carrying a pin D serving as the fulcrum of an oscillating lever E, provided with a slot E and pivoted upon the pin D'', an internal gear E carried by said oscillating lever and engaging the pinion D, said oscillating lever being con nected with and actuated by the crank 0 and a link D connecting the crank O with the arm D of the pivoted bell-crank, whereby an oscillating motion is imparted to the pivotal pin D substantially as described.
Dated at \Vorcester, in the county of W'orcester and State of lllassachusetts, this 5th day of May, 1891.
JOSEPH D. VESTGATE. \Vitnesses:
RUFUS B. FOWLER, CHARLES H. WooneocK.
US477191D Mechanical movement Expired - Lifetime US477191A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030028696A1 (en) * 2001-06-01 2003-02-06 Michael Catherwood Low overhead interrupt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030028696A1 (en) * 2001-06-01 2003-02-06 Michael Catherwood Low overhead interrupt

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