US246128A - Mechanism for converting motion - Google Patents

Mechanism for converting motion Download PDF

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US246128A
US246128A US246128DA US246128A US 246128 A US246128 A US 246128A US 246128D A US246128D A US 246128DA US 246128 A US246128 A US 246128A
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shaft
rack
converting motion
pinions
motion
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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
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
    • F16H19/043—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack for converting reciprocating movement in a continuous rotary movement or vice versa, e.g. by opposite racks engaging intermittently for a part of the stroke
    • 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
    • Y10T74/1532—Rack actuator
    • Y10T74/1534—Multiple acting

Definitions

  • WITNESSES INVENTOR: 1240 ffi/fl z I lflymww ./@Zm 17 BY ATTORNEYS.
  • My improved mechanism is intended for use as a substitute for cranks in converting rectilinear reciprocating to continuous rotary motion, the special object being to increase the extent of rotary motion from a given length of stroke, while at the same time avoiding deadcenters.
  • Figure l is a plan view of mechanism embodying my invention.
  • Fig. 2 is a vertical longitudinal section of the same.
  • A is a bed-plate, of any suitable character, on which the shaft (0 that is to be driven is carried, and on shaft a is a fiy-wheel, Z).
  • shaft a represents the driving-shaft.
  • On the shaft a are two fast pinions, o c, gearing respectively with gear-wheels d d, that are fast on horizontal shafts e 0, supported in suitable bearing on bed-plate A.
  • the pinions c c are alike in size, and are proportioned to the wheels (I d, to give shaft a two or more revolutions at each revolution of shafts c c.
  • loose pinions ff On the shafts e e are loose pinions ff, each of which carries a radial arm, g, and upon each wheel d or d is a spring-pawl, ii, that is engaged by the arm 9 oftheloosepinionforj".
  • the loosepinionsfj" are between the gear-wheels d at, one above the other, and the pawls h are on the contiguous faces of the gear-wheels.
  • the pinionsff are in the same plane of revolution; but their shafts e c are out of line vertically, so that the pinions may be brought closer together for operation by the same rack, as next described.
  • the bar B is a rack-bar extending between the pinions ff, and fitted to move horizontally in a suitable slideway provided on bed plate A.
  • the bar has cogs formed both on its upper and lower side, and such cogs are between side flanges, by which the bar bears on its supports.
  • the reciprocation of the rack B gives revolution to the loose pinionsff in opposite directions, and the arm 9 of one pinion moves one gear-wheel, d or d, by contact with the end of one pawl h, the arm 9 of the other pinion passing beneath the other pawl h and moving it outward without further effeet.
  • the shaft a is thus revolved at each reciprocation of the rack.
  • the rack will give one revolution to piniousff ateach movement, with the result of two revolutions to shaft to, and consequently this shaft working back through the pinion c or 0 will reverse the wheel (1 or d, so that when the rack starts back the arm g and pawl h will bein position to act immediately.
  • This construction is compact, and the movements are obtained without uneven strain or wear. its center line at each reciprocation.
  • the gearwheels cl d fitted with spring-pawls h and geared to a common shaft, the pini'onsff, carrying arms g and loose on the shafts of the wheels 61, and the double rack B, fitted for reciprocation between the loose pinions, substan-
  • the rack a 1 lies the )OWBI near] on l P l y t-ially as shown and described, combined for operation as specified.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussion Or Vibration Massage (AREA)

Description

(No Model.)
W. HANNA.
MECHANISM FOR CONVERTING MOTION.
No. 246,128. I Patented Aug. 23,1881.
WITNESSES: INVENTOR: 1240 ffi/fl z I lflymww ./@Zm 17 BY ATTORNEYS.
"rre TATES PATENT OFFICE.
WILLIAM HANNA, OF GILROY, CALIFORNIA.
MECHANISM FOR CONVERTING MOTION.
SPECIFICATION forming part of Letters Patent No. 246,128, dated August 23, 1881, Application filed February 11, 1881. (N 0 model.)
To all whom it may concern:
Be it known that 1, WILLIAM HANNA, of Gilroy, in the county of Santa Clara and State of California, have invented a new and useful Improvement in Mechanism for Converting Motion, of which the following is a full, clear, and exact description.
My improved mechanism is intended for use as a substitute for cranks in converting rectilinear reciprocating to continuous rotary motion, the special object being to increase the extent of rotary motion from a given length of stroke, while at the same time avoiding deadcenters. I make use of a double rack and double set of pinionsand clutches geared to a common shaft; and myinvention consists in novel pawl devices and a novel arrangement of the parts, whereby the desired motion is obtained without undue strain or wear on the parts, as hereinafter described and claimed.
In the drawings, Figure l is a plan view of mechanism embodying my invention. Fig. 2 is a vertical longitudinal section of the same.
Similar letters of reference indicate corresponding parts.
A is a bed-plate, of any suitable character, on which the shaft (0 that is to be driven is carried, and on shaft a is a fiy-wheel, Z). In case the primary motion is rotary, shaft a represents the driving-shaft. On the shaft a are two fast pinions, o c, gearing respectively with gear-wheels d d, that are fast on horizontal shafts e 0, supported in suitable bearing on bed-plate A. The pinions c c are alike in size, and are proportioned to the wheels (I d, to give shaft a two or more revolutions at each revolution of shafts c c. On the shafts e e are loose pinions ff, each of which carries a radial arm, g, and upon each wheel d or d is a spring-pawl, ii, that is engaged by the arm 9 oftheloosepinionforj". The loosepinionsfj" are between the gear-wheels d at, one above the other, and the pawls h are on the contiguous faces of the gear-wheels. The pinionsff are in the same plane of revolution; but their shafts e c are out of line vertically, so that the pinions may be brought closer together for operation by the same rack, as next described.
B is a rack-bar extending between the pinions ff, and fitted to move horizontally in a suitable slideway provided on bed plate A. The bar has cogs formed both on its upper and lower side, and such cogs are between side flanges, by which the bar bears on its supports.
6 is a pitman connected with the outer end of the rack, for reciprocating the same by connections with suitable power.
In operation the reciprocation of the rack B gives revolution to the loose pinionsff in opposite directions, and the arm 9 of one pinion moves one gear-wheel, d or d, by contact with the end of one pawl h, the arm 9 of the other pinion passing beneath the other pawl h and moving it outward without further effeet. The shaft a is thus revolved at each reciprocation of the rack. Preferably the rack will give one revolution to piniousff ateach movement, with the result of two revolutions to shaft to, and consequently this shaft working back through the pinion c or 0 will reverse the wheel (1 or d, so that when the rack starts back the arm g and pawl h will bein position to act immediately.
This construction is compact, and the movements are obtained without uneven strain or wear. its center line at each reciprocation.
Having thus described myinvention,I claim as new and desire to secure by Letters Patentl. The mechanism for converting motion, consisting of the fast gear-Wheels d d, shafts c c, loose pinions ff, shaft to, fast pinions 0 c, spring-pawls lb, fixed arms g, and reciprocating double rack B, combined for operation substantially. as shown and described.
2. In mechanism for converting motion, the gearwheels cl d, fitted with spring-pawls h and geared to a common shaft, the pini'onsff, carrying arms g and loose on the shafts of the wheels 61, and the double rack B, fitted for reciprocation between the loose pinions, substan- The rack a 1 lies the )OWBI near] on l P l y t-ially as shown and described, combined for operation as specified.
WlLLIAM HANNA. Witnesses:
ADAM RIEHL, GEO. E. BENNETT.
US246128D Mechanism for converting motion Expired - Lifetime US246128A (en)

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