US1391948A - Lever-control mechanism - Google Patents

Lever-control mechanism Download PDF

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Publication number
US1391948A
US1391948A US266601A US26660118A US1391948A US 1391948 A US1391948 A US 1391948A US 266601 A US266601 A US 266601A US 26660118 A US26660118 A US 26660118A US 1391948 A US1391948 A US 1391948A
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United States
Prior art keywords
lever
slot
control mechanism
quadrant
spring
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Expired - Lifetime
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US266601A
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Gledhill Arthur Henry
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Individual
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Individual
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Priority to US266601A priority Critical patent/US1391948A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/02—Means preventing undesired movements of a controlling member which can be moved in two or more separate steps or ways, e.g. restricting to a stepwise movement or to a particular sequence of movements
    • 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
    • Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
    • Y10T74/2042—Flexible transmitter [e.g., Bowden cable] and hand operator
    • 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
    • Y10T74/20576—Elements
    • Y10T74/20582—Levers
    • Y10T74/2063—Stops
    • 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
    • Y10T74/20576—Elements
    • Y10T74/20636—Detents
    • Y10T74/20672—Lever engaging rack
    • 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
    • Y10T74/20576—Elements
    • Y10T74/20924—Controller checks

Definitions

  • This invention relates to control mechanism' of the kind in which the position of a lever is controlled by-means of a slotted gate plate, the chief object of the present invention being to provide a form of apparatus of this class which will automatically cause the lever when pulled to stop in successive positions and so relieve the operator from all responsibility in guiding the lever into a holding notch or recess for effecting such purpose, the arrangement being such that the lever can also be moved completely through the gate in either direction without stopping at an intermediate position when required.
  • a lever or sliding member passes through a zigzag or serrated slot and is normally actuated in a lateral direction in relation to such slot by a spring or weight, the arrangement being such that when the lever is moved through the length of the first oblique or slanting portion of the slot it comes to rest against the transverse portion of the next serration and on being released the spring or weight moves it in a lateral direction through a transverse slot into line with the next oblique or slanting slot, in which position it can be moved to its second position, that is to say until it contacts with the transverse portion of the second serration, the lever or member when released returning into line with the third oblique or slanting slot and so on throughout the number of serrations in the plate.
  • a lateral pressure is exerted upon it by the operator during its traversing movement.
  • the transverse portions of the serrations at opposite sides of the slot advantageously overlap one another to prevent the lever or member being accidentally moved through more than one step at a time.
  • FIG. 1 is a side elevation and Fig. 2 an end elevation of a form of control mechanism constructed in' accordance with this invention.
  • Figs. 3 and 4 are similar views showing the control lever in different positions
  • Fig. 5 is a plan of the slotted plate before the same is bent.
  • A indicates the lever and B the slotted gate plate.
  • the lever A is pivoted in a slot at in a quadrant a which may be connected with the apparatus to be controlled by a Bowden wire or other suitable connection.
  • the free end of the lever passes through the zigzag or serrated slot 6 in the gate plate B and a spring a or a weight normally exerts a lateral pressure on the lever A and causes it to bear against one edge of the slot.
  • One end of the spring a is connected with the lever A, the other end being suitably anchored to the quadrant whereby said spring normally exerts a yieldable lateral pull upon said lever. Presuming the lever to be at the initial end of the slot as shown in Figs. 1 and 2, as soon as it is pulled it turns the quadrant a and moves through the first slot 6 (Fig.
  • Each transverse portion such as b is advantageously formed with a slight amount of rake to prevent the lever accidentally slipping off such portion when re- .ceiving its step by step movement.
  • lateral pressure is exerted by the operator upon the lever during its traversing movement in the direction of the arrow C and to move the lever completely through the gate in the opposite direction lateral pressure is exerted by the operator upon the lever in the direction of the arrow D.
  • lever control mechanism the combination of a plate having a slot formed with ratchet teeth at each side, staggered in relation to one another, to form a continuity of inclined and transverse passages, a quadrant the quadrant in such manner as to be capable of moving at right angles to the movement of the quadrant, and a spring connected at one end to the lever, and at the other end to the quadrant.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Control Devices (AREA)

Description

' A. H. GLEDHILL.
LEVER CONTROL MECHANISM.
- APPLICATION FILED DEC. 13, 1918.
UNITED STATES ARTHUR HENRY .GLEDHILL, o HALIrAX, ENGLAND.
LEVER-CONTROL- MECHANISM.
7 Specification of Letters Patent. Patented Sept. 27, 1921,
Application filed December 13, 1918. seri'arno. 266,601.
To all whom it may concern Be it known thELt'L'AR THUR HENRY GLED- HILL, a subject of the King of Great Britain, residing at Trinity WVorks, Halifax, in the county of York, England, have invented certain new and useful Improvements in Lever- Control Mechanism, of which the following is a specification.
This invention relates to control mechanism' of the kind in which the position of a lever is controlled by-means of a slotted gate plate, the chief object of the present invention being to provide a form of apparatus of this class which will automatically cause the lever when pulled to stop in successive positions and so relieve the operator from all responsibility in guiding the lever into a holding notch or recess for effecting such purpose, the arrangement being such that the lever can also be moved completely through the gate in either direction without stopping at an intermediate position when required.
According to this invention a lever or sliding member passes through a zigzag or serrated slot and is normally actuated in a lateral direction in relation to such slot by a spring or weight, the arrangement being such that when the lever is moved through the length of the first oblique or slanting portion of the slot it comes to rest against the transverse portion of the next serration and on being released the spring or weight moves it in a lateral direction through a transverse slot into line with the next oblique or slanting slot, in which position it can be moved to its second position, that is to say until it contacts with the transverse portion of the second serration, the lever or member when released returning into line with the third oblique or slanting slot and so on throughout the number of serrations in the plate. To move the lever from one end to the other of the gate without stopping it at any intermediate portion, a lateral pressure is exerted upon it by the operator during its traversing movement. The transverse portions of the serrations at opposite sides of the slot advantageously overlap one another to prevent the lever or member being accidentally moved through more than one step at a time.
In the accompanying drawings Figure 1 is a side elevation and Fig. 2 an end elevation of a form of control mechanism constructed in' accordance with this invention.
Figs. 3 and 4: are similar views showing the control lever in different positions, and
Fig. 5 is a plan of the slotted plate before the same is bent.
A indicates the lever and B the slotted gate plate.
In the example shown the lever A is pivoted in a slot at in a quadrant a which may be connected with the apparatus to be controlled by a Bowden wire or other suitable connection. The free end of the lever passes through the zigzag or serrated slot 6 in the gate plate B and a spring a or a weight normally exerts a lateral pressure on the lever A and causes it to bear against one edge of the slot. One end of the spring a is connected with the lever A, the other end being suitably anchored to the quadrant whereby said spring normally exerts a yieldable lateral pull upon said lever. Presuming the lever to be at the initial end of the slot as shown in Figs. 1 and 2, as soon as it is pulled it turns the quadrant a and moves through the first slot 6 (Fig. 5) until it comes to rest against the transverse portion 6 and occupies the position shown in Fig. l. The lever is now released and the spring 0& moves it through the transverse slot 6 into line with the second oblique or slanting slot 6* and so on throughout the whole number of serrations as has already been described. Each transverse portion such as b is advantageously formed with a slight amount of rake to prevent the lever accidentally slipping off such portion when re- .ceiving its step by step movement.
By the invention described it is only necessary for the operator to impart a succession of straight pulls to the lever to insure its receiving the desired step by step movement. After each movement it automati-' cally frees itself from its locked position and becomes ready for its next movement and no thought is required by the operator to determine to which side of the slot the lever has to be moved to free it for its next movement as in the ordinary slotted gate type of control.
To move the lever completely through the gate at one operation in the direction of the arrow C (Fig. 5) lateral pressure is exerted by the operator upon the lever during its traversing movement in the direction of the arrow C and to move the lever completely through the gate in the opposite direction lateral pressure is exerted by the operator upon the lever in the direction of the arrow D.
What I claim as my invention and desire to secure by Letters Patent of the United States is In lever control mechanism, the combination of a plate having a slot formed with ratchet teeth at each side, staggered in relation to one another, to form a continuity of inclined and transverse passages, a quadrant the quadrant in such manner as to be capable of moving at right angles to the movement of the quadrant, and a spring connected at one end to the lever, and at the other end to the quadrant.
In testimony whereof I afiix my signature in presence of two Witnesses.
ARTHUR HENRY GLEDHILL.
WVitnesses: I
G. P. APPLEYARD, A. J. ROBINSON.
US266601A 1918-12-13 1918-12-13 Lever-control mechanism Expired - Lifetime US1391948A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915318A (en) * 1957-02-20 1959-12-01 Sears Roebuck & Co Adjustable wheel mounting for lawnmower and the like
US2934972A (en) * 1955-12-15 1960-05-03 Bingham Herbrand Corp Parking brake assembly
US3126758A (en) * 1964-03-31 Obstacle type switch detent
US3483682A (en) * 1966-08-18 1969-12-16 Root Mfg Co Inc Cutter suspension unit for riding mowers
US4255881A (en) * 1979-11-30 1981-03-17 J. I. Case Company Adjustment mechanism for chute deflector
US4438658A (en) * 1981-12-14 1984-03-27 Capro, Inc. Engine throttle control
US8322306B2 (en) 1997-05-09 2012-12-04 Ctb, Inc. Indexed feed dispensing mechanism
US20140096418A1 (en) * 2012-10-04 2014-04-10 Honda Motor Co., Ltd Snowblower deflector control devices, systems, and methods

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126758A (en) * 1964-03-31 Obstacle type switch detent
US2934972A (en) * 1955-12-15 1960-05-03 Bingham Herbrand Corp Parking brake assembly
US2915318A (en) * 1957-02-20 1959-12-01 Sears Roebuck & Co Adjustable wheel mounting for lawnmower and the like
US3483682A (en) * 1966-08-18 1969-12-16 Root Mfg Co Inc Cutter suspension unit for riding mowers
US4255881A (en) * 1979-11-30 1981-03-17 J. I. Case Company Adjustment mechanism for chute deflector
US4438658A (en) * 1981-12-14 1984-03-27 Capro, Inc. Engine throttle control
US8322306B2 (en) 1997-05-09 2012-12-04 Ctb, Inc. Indexed feed dispensing mechanism
US8573157B2 (en) 1997-05-09 2013-11-05 Ctb, Inc. Indexed feed dispensing mechanism
US8899178B2 (en) 1997-05-09 2014-12-02 Ctb, Inc. Indexed feed dispensing mechanism
US20140096418A1 (en) * 2012-10-04 2014-04-10 Honda Motor Co., Ltd Snowblower deflector control devices, systems, and methods

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