US687566A - Speed-changing device. - Google Patents

Speed-changing device. Download PDF

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Publication number
US687566A
US687566A US5257201A US1901052572A US687566A US 687566 A US687566 A US 687566A US 5257201 A US5257201 A US 5257201A US 1901052572 A US1901052572 A US 1901052572A US 687566 A US687566 A US 687566A
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United States
Prior art keywords
shaft
disk
speed
driving
scroll
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
US5257201A
Inventor
Charles O Johnson
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Individual
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Individual
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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
    • F16H29/00—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action
    • F16H29/02—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts
    • F16H29/04—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts in which the transmission ratio is changed by adjustment of a crank, an eccentric, a wobble-plate, or a cam, on one of the shafts
    • 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
    • Y10T74/1503—Rotary to intermittent unidirectional motion
    • Y10T74/1508—Rotary crank or eccentric drive
    • Y10T74/151—Adjustable
    • 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
    • Y10T74/1529—Slide actuator
    • Y10T74/1531—Multiple acting
    • 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
    • Y10T74/1558—Grip units and features
    • Y10T74/1565—Gripper releasing devices
    • 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
    • Y10T74/1558—Grip units and features
    • Y10T74/1577—Gripper mountings, lever
    • Y10T74/1579—Reversible
    • 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
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20468—Sliding rod
    • 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
    • Y10T74/21—Elements
    • Y10T74/2173—Cranks and wrist pins
    • Y10T74/2179—Adjustable

Definitions

  • FIG. l represents a top plan view showing the connecting mechanism between the driving and driven shafts.
  • Fig. 2 represents a side elevation of the same with the gearwheel for adjusting the scroll-disk removed.
  • Fig. 3 represents a cross-section on the line 3 3 shown in Fig. 2.
  • Fig. 4 represents an enlarged end View of the scroll-disk; and
  • Fig. 5 represents a longitudinal section on the line 5 5 in Figs. 1 and 2, showing the driven shaft in elevation.
  • A represents the continuously-rotating driving-shaft of a motor or power shaft of any kind
  • B represents the driven shaft, the speed of which is to be changed independent of the speed of rotation of the drivingshaft A.
  • the disk C To the driving-shaft A is keyed or otherwise secured the disk C, provided with a radial groove D, in which is radially adjusted and guided a block E, and in aperforation in said block is journaled a pin f, to the inner end of which is secured a scroll-disk F, adapted to engage with teeth or projections G G in the bottom of the groove D, as shown in Figs. l, 2, 3, and 4.
  • a sleeve e In one piece with the block E is made a sleeve e, on which is journaled one end of the draw-bar II, as shown.
  • a sprocket-wheel I which may be connected by means of a sprocket-chain and ahand-operated sprocket-wheel arranged in a convenient place at hand.
  • a sprocketwheel I may use a spur or bevel gear and suitable corresponding intermediate connecting mechanism.
  • Such connecting mechanism from the gear I is, however, not shown in the drawings, as it does not form a part of myinvention and may be varied at pleasure, according to circumstances.
  • P is a rod which connects one of the ends of the levers M M, as shown in Fig. 2.
  • a rod Q having a tooth or projection q, adapted to be interlocked and held by a spring R in any one of the locking-recesses 'I U in the locking-plate S, as shown in Fig.2, and by the adjustment of said rod Q the motion impart ed to the shaft B may be reversed.
  • the scroll -disk F By turning the wheel I and its shaftf the scroll -disk F by its engagement with the toothed rack G causes the block E to travel in a radial direction in the disk C, thus caus ing the pin f to be held more or less eccentric relative to the axis of the driving-shaft A, and when so adjusted the pin j' causes a reL ciprocatory motion to be imparted to the drawbar H.
  • the stroke of the draw-bar H and conse- Aquent speed of the shaft B can readily be adfrom the driving-shaft A may readily be advice,consistingin combination a disk, secured to a driving-shaft, there being a radial groove arranged in said disk, and provided with a toothed rack, a scroll-disk, meshing in said rack and journaled in a block, adjustable in said groove, a draw-bar, pivotally connected to said block, rods pivot'ally connected tosaid draw-bar, and disks loosely journaled upon the driven shafuand reversible spring-pressed forked clamping devices pivotally connected to saiddisks, and means for adjusting said scroll-disk, and a reversing device, substantially as and for the purpose set forth.

Description

c. 0'. JoHNsnu.
SPEED CHANGING DEVISE.
(Applikation lad Mar. 23, 1901.)
(No Model.)
Patented Nov. 26, |90I.
3 Sheets-Sheet l,
DNENTGB.
No. 687,566. Patented Nov. 26, |90l.
C. 0.4J0HNS0N.
SPEED CHANGING DEVICE.
(Appucaticn med Mar. 2a, i901.) (No ModeL 3 Sheets-Sheet 2.
Wfrmasme 'l MNTQ M@ @2W @ww dw'/"ffw we Nonms Parzws co. PHcoLlmo. wAsmNcroN. n, c.
N0. 687,566. Patented Nov. 26, |90l c. o. JHNsoN.
SPEED CHANGING DEVIEE.
(Application led Mar. 23, 1901.) (No Model.)v 3 Sheets-Sheet 3.
UNITED STATES PATENT FFICE.
CHARLES O. JOHNSON, OFBOSTON, MASSACHUSETTS.
SPEED-CHANGING DEVICE.
SPECIFICATION forming part of Letters Patent N 0. 687,566, dated November 26, 1901.
Application filed March 23. 1901- Sen'al No. 52,572. (No model.)
T0 @ZZ whom t Wtcty concern.-
Be it known that I, CHARLES O. JOHNSON, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented new and useful Improvements in Speed-Changing Devices, of which the following is a specification.
This invention relates to improvements in speedchanging devices forl the purpose of changing the speed of a driven shaft from a continuously-rotating driver-shaft- The invention is carried out as follows, reference being had to the accompanying drawings, wherein- Figure l represents a top plan view showing the connecting mechanism between the driving and driven shafts. Fig. 2 represents a side elevation of the same with the gearwheel for adjusting the scroll-disk removed. Fig. 3 represents a cross-section on the line 3 3 shown in Fig. 2. Fig. 4 represents an enlarged end View of the scroll-disk; and Fig. 5 represents a longitudinal section on the line 5 5 in Figs. 1 and 2, showing the driven shaft in elevation.
Similar letters refer to similar parts wher'- ever they occur on the different parts of the drawings.
In the drawings, A represents the continuously-rotating driving-shaft of a motor or power shaft of any kind, and B represents the driven shaft, the speed of which is to be changed independent of the speed of rotation of the drivingshaft A.
To the driving-shaft A is keyed or otherwise secured the disk C, provided with a radial groove D, in which is radially adjusted and guided a block E, and in aperforation in said block is journaled a pin f, to the inner end of which is secured a scroll-disk F, adapted to engage with teeth or projections G G in the bottom of the groove D, as shown in Figs. l, 2, 3, and 4. In one piece with the block E is made a sleeve e, on which is journaled one end of the draw-bar II, as shown. To the outer end of the pin f is secured, preferably, a sprocket-wheel I, which may be connected by means of a sprocket-chain and ahand-operated sprocket-wheel arranged in a convenient place at hand. Instead of a sprocketwheel I may use a spur or bevel gear and suitable corresponding intermediate connecting mechanism. Such connecting mechanism from the gear I is, however, not shown in the drawings, as it does not form a part of myinvention and may be varied at pleasure, according to circumstances. It Will be noticed that by turning said gear I the scroll-disk F will be rotated, and by its engagement with the teeth or rack G in the disk C the said scroll-disk and its shaft or pinf will be caused to move in a radial direction relative to the axis of the driving-shaft A for a purpose as will hereinafter be more fully shown and described.
To the end of the draw-bar H are pivot-ally connected a pair of rods K K', which are pivotally connected at their outer ends, respectively, to disks L L', as shown. Said disks are looselyjournaled on the driven shaft B. To the disk L are secured pivot-pins m m, on which are pivoted levers M M, as shown. On each of said pins fm is also loosely pivoted a forked arm N O, the ends of which are connected to the ends of the lever M by means of yielding springs n o, as shown in Fig. 2.
P is a rod which connects one of the ends of the levers M M, as shown in Fig. 2.
To one end of the upper lever M is attached a rod Q, having a tooth or projection q, adapted to be interlocked and held by a spring R in any one of the locking-recesses 'I U in the locking-plate S, as shown in Fig.2, and by the adjustment of said rod Q the motion impart ed to the shaft B may be reversed.
In the drawings, Figs. 1= 2, and 3, the axis of the crank-pin f is shown as held in a line with the'axis of the drivingshaft A, and during such position the shaft A is free to rotate without imparting any motion to the drawbar H, and consequently no motion is impart ed to the shaft vB.
By turning the wheel I and its shaftf the scroll -disk F by its engagement with the toothed rack G causes the block E to travel in a radial direction in the disk C, thus caus ing the pin f to be held more or less eccentric relative to the axis of the driving-shaft A, and when so adjusted the pin j' causes a reL ciprocatory motion to be imparted to the drawbar H.
During the motion of the draw-bar H in the direction of the arrow shown upon it in Fig. 2 the disk L is caused to be rocked in the di` IOO rection of the arrow shown on it in said Fig. 2, causing the ends N N of the forked arms to impinge against the shaftB by the influence of the springs o 0, thereby imparting a par'- tial rotary motion to a shaft B in the direction of the arrow shown in Fig. 2; During the opposite reciprocating motion of said draw-bar H the ends N N' of the forked arms Will pass freely upon the circumference of the shaft B, while corresponding portions of similar forked arms on the disk L Will impinge against the shaft B by the influence of similar springs, thus imparting a continuous rotary motion from the driving-shaft A to the driven shaft B. By adjusting the position of the rod Q a reverse motion will be imparted to the shaft B from the driving-shaft A, causing the parts O O to be intermittently clamped against the circumference of the shaft B.
The stroke of the draw-bar H and conse- Aquent speed of the shaft B can readily be adfrom the driving-shaft A may readily be advice,consistingin combination a disk, secured to a driving-shaft, there being a radial groove arranged in said disk, and provided with a toothed rack, a scroll-disk, meshing in said rack and journaled in a block, adjustable in said groove, a draw-bar, pivotally connected to said block, rods pivot'ally connected tosaid draw-bar, and disks loosely journaled upon the driven shafuand reversible spring-pressed forked clamping devices pivotally connected to saiddisks, and means for adjusting said scroll-disk, and a reversing device, substantially as and for the purpose set forth.
In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.
CHARLES O. JOHNSON.
ALBAN ANDRN, RICHARD C. ULLRICH.
US5257201A 1901-03-23 1901-03-23 Speed-changing device. Expired - Lifetime US687566A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2716348A (en) * 1952-07-26 1955-08-30 Leo J Brandt Variable-speed power transmission
US3105388A (en) * 1955-10-08 1963-10-01 Bertin & Cie Torque converter
US3199361A (en) * 1961-03-14 1965-08-10 Christian F Prins Motion changing mechanisms

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2716348A (en) * 1952-07-26 1955-08-30 Leo J Brandt Variable-speed power transmission
US3105388A (en) * 1955-10-08 1963-10-01 Bertin & Cie Torque converter
US3199361A (en) * 1961-03-14 1965-08-10 Christian F Prins Motion changing mechanisms

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