US2539386A - Rotary control mechanism - Google Patents

Rotary control mechanism Download PDF

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Publication number
US2539386A
US2539386A US594132A US59413245A US2539386A US 2539386 A US2539386 A US 2539386A US 594132 A US594132 A US 594132A US 59413245 A US59413245 A US 59413245A US 2539386 A US2539386 A US 2539386A
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United States
Prior art keywords
shaft
housing
sleeve
control mechanism
rotary control
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Expired - Lifetime
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US594132A
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Donald E Albert
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/04—Cases; Covers
    • H01H23/06—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
    • F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • H01H2009/048—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings using a sealing boot, e.g. the casing having separate elastic body surrounding the operating member and hermetically closing the opening for it
    • 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
    • Y10T74/20732—Handles
    • Y10T74/20744—Hand crank
    • 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
    • Y10T74/20732—Handles
    • Y10T74/20876—Caps and covers
    • 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
    • Y10T74/2093—Slot closers and lever guards

Definitions

  • This invention relates to rotary control mechanisms, and more particularly to a moisture proof rotary control mechanism.
  • An object of this invention is to provide a simple and effective moisture proof rotary control mechanism.
  • Fig. 1 is a vertical, sectional view, partly in elevation, of a, rotary control mechanism constructed in accordance with one embodiment of this invention, having associated therewith a control device to be actuated thereby; and,
  • Fig. 2 is a sectional view along the line 2-2 of Fig. 1.
  • this mechanism includes a sleeve-shaped, shaft housing 5 which extends through and is mounted in an aperture 6 formed in a panel I, the upper peripheral portion of the housing 5 being provided with a shoulder 8, the lower edge of which rests on the outer surface of the panel 1.
  • a ring 9 of solder or other suitable sealing material by which the inner portion of the housing may be both fixed and sealed to the inside of the panel 1 is located on the under ide of t p t It will amended April 30, 1928; 370 0. G. 757) be understood that the panel 1 represents a portion of an equipment housing or case which may be hermetically sealed.
  • a rotatable shaft I0 having a shouldered upper portion H is journalled in an aperture [2 which extends through the housing 5.
  • the upper portion l3 of the aperture 12 is enlarged somewhat to form a narrow, peripheral ledge 14 on which the lower edge of the shoulder ll bears.
  • the portion of the housing 5 which extends downwardly, as viewed in these drawings, through the panel I is internally threaded to engage the upper portion of an externally threaded sleeve I5, the lower end of which is fixed to a control device l6 of the equipment.
  • a look nut I1, rotatably mounted on the threaded sleeve !5, is adjustable to bear against the lower edge of the housing 5 after the control device has been moved into the desired position.
  • a sleeve 25, of U-shaped cross section is rotatably mounted on the stub shaft 23.
  • a spherical bearing 26 may be interposed between the outer end of the stub shaft 23 and the inner concave surface of the sleeve 25, as shown.
  • a nipple-shaped covering 26 which may be made of rubber or other suitable resilient material which is impervious to moisture, is positioned over the exposed portion of the rotary control mechanism, the stub shaft 23 and associated sleeve 25 extending into the reduced portion Zithereof and the larger base portion being disposed over the shouldered portion 8 of the housing 5.
  • a ring 29, or other suitable clamping device is positioned about the periphery of the enlarged portion 28 of the nipple and clamps it tightly against the outer surface of the shouldered portion 8 to form a hermetic seal therebetween.
  • the stub shaft 23 may be caused to move in a rotary path by grasping the outer portion of the nipple 23, which encloses the stub shaft and relatively rotatable sleeve 25, and by moving it in a rotary path, without causing undue twisting of the nipple 28.
  • this motion will cause the shaft if] to rotate and the shaft 59 will, in turn, rotate the shaft E3 of the control device 5.
  • a moisture proof rotary control mechanism comprising a shaft housing, a rotatable control shaft journalled in said housing, a stub shaft having one end thereof fixed to one end of said rotatable shaft and extending at an angle thereto to form a crank therefor, a sleeve having a closed end rotatably mounted on said stub shaft, bearing means between the other end of said stub shaft and the closed end of said sleeve, said sleeve being of sufficient length to substantially enclose the stub shaft, a continuous covering of resilient moisture impervious material positioned over said sleeve and terminated in a moisture proof seal with said housing to enclose the sleeve, the stub shaft and said one end of said rotatable shaft, said covering including a central portion formed to tightly enclose said sleeve throughout a greater portion of its length measured from the closed end thereof and a base portion extending from the central portion with gradually increasing diameter and terminating with an internal configuration to form a tight

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

Description

Jan. 30, 1951 ALBERT 2,539,386
ROTARY CONTROL MECHANISM Filed May 16, 1945 Tif; .l.
1 w on i on I Donald E. Albert Patented Jan. 30, 1951 ROTARYCONTROL MECHANISM Donald E. Albert, Alexandria, Va.
Application May 16, 1945, Serial No. 594,132
1 Claim.
(Granted under the act of March 3, 1883, as
This invention relates to rotary control mechanisms, and more particularly to a moisture proof rotary control mechanism.
Where equipment is operated under water or under conditions where excessive moisture is present, it becomes necessary to hermetically seal the equipment. If the operation of the equipment is to be varied by manipulating controls directly connected to the equipment, it is then desirable to provide some means whereby the control may be externally actuated without disturbing the hermetic seal.
An object of this invention is to provide a simple and effective moisture proof rotary control mechanism.
In accordance with one embodiment of this invention, a moisture proof rotary control mechanism may be provided comprising a rotatable shaft journalled in a housing one end of which is hermetically sealed to the housing of the equipment, a control device of which is to be externally actuated. The inner end of the shaft operably engages the equipment control device, while the outer end of the shaft is provided with a short shaft which is fixed thereto and extends at an angle therefrom to provide a crank handle. The base of a nipple-shaped rubber housing encloses the exposed portion of the shaft housing and the stub shaft extends into the reduced portion thereof. By moving the outer portion of the stub shaft in a rotary path, the shaft may be caused to rotate and to actuate the control device of the equipment.
Other objects and advantages of the present invention will be apparent from the following detailed description taken in conjunction with the drawings wherein:
Fig. 1 is a vertical, sectional view, partly in elevation, of a, rotary control mechanism constructed in accordance with one embodiment of this invention, having associated therewith a control device to be actuated thereby; and,
Fig. 2 is a sectional view along the line 2-2 of Fig. 1.
Referring now to the drawings, it will be seen that this mechanism includes a sleeve-shaped, shaft housing 5 which extends through and is mounted in an aperture 6 formed in a panel I, the upper peripheral portion of the housing 5 being provided with a shoulder 8, the lower edge of which rests on the outer surface of the panel 1. A ring 9 of solder or other suitable sealing material by which the inner portion of the housing may be both fixed and sealed to the inside of the panel 1 is located on the under ide of t p t It will amended April 30, 1928; 370 0. G. 757) be understood that the panel 1 represents a portion of an equipment housing or case which may be hermetically sealed. A rotatable shaft I0 having a shouldered upper portion H is journalled in an aperture [2 which extends through the housing 5. In order to locate the shaft H! properly with respect to the housing 5, the upper portion l3 of the aperture 12 is enlarged somewhat to form a narrow, peripheral ledge 14 on which the lower edge of the shoulder ll bears.
The portion of the housing 5 which extends downwardly, as viewed in these drawings, through the panel I is internally threaded to engage the upper portion of an externally threaded sleeve I5, the lower end of which is fixed to a control device l6 of the equipment. A look nut I1, rotatably mounted on the threaded sleeve !5, is adjustable to bear against the lower edge of the housing 5 after the control device has been moved into the desired position. A rotary control shaft l8, by which the control device [6 is directly operated, extends axially through the threaded sleeve I5 from the control device lfi, and is provided with an integral, transversely extending key IS in its upper end which extends into a slot 20, formed in the lower end of the shaft Hi. It will be apparent from the foregoing that rotation of the shaft ID will cause the shaft Hi to rotate therewith and thereby to actuate the control device Hi.
In order to rotate the shaft I0, a short stub shaft 23 is mounted in and extends at an angle of approximately 30 from the upper end of the shaft Hi. This stub shaft 23 may be integrally formed with the upper end of the shaft Ill or may, as shown, comprise a short rod one end of which is press-fitted into a small cylindrical recess 24 formed in the upper end of the shaft 10 at an angle approximately 30 from the axis thereof, thus forming in effect a crank handle for the shaft 10. By moving the outer end of the stub shaft 23 in a rotary path it will be apparent that the shaft ill will be caused to rotate, and, in turn, the shaft [8 of the control device [6 will be rotated.
In order to hermetically seal the exposed portion of the rotary control mechanism which includes the outer portion of the housing 5, the upper portion of the shaft l0 and the stub-shaft 23, and at the same time to permit free rotary motion thereof, a sleeve 25, of U-shaped cross section, is rotatably mounted on the stub shaft 23. To prevent binding, a spherical bearing 26 may be interposed between the outer end of the stub shaft 23 and the inner concave surface of the sleeve 25, as shown. A nipple-shaped covering 26, which may be made of rubber or other suitable resilient material which is impervious to moisture, is positioned over the exposed portion of the rotary control mechanism, the stub shaft 23 and associated sleeve 25 extending into the reduced portion Zithereof and the larger base portion being disposed over the shouldered portion 8 of the housing 5. A ring 29, or other suitable clamping device, is positioned about the periphery of the enlarged portion 28 of the nipple and clamps it tightly against the outer surface of the shouldered portion 8 to form a hermetic seal therebetween.
It will be apparent from the foregoing that by providing the rotatable sleeve 25, the stub shaft 23 may be caused to move in a rotary path by grasping the outer portion of the nipple 23, which encloses the stub shaft and relatively rotatable sleeve 25, and by moving it in a rotary path, without causing undue twisting of the nipple 28. As hereinbefore stated this motion will cause the shaft if] to rotate and the shaft 59 will, in turn, rotate the shaft E3 of the control device 5.
While but one embodiment of this invention has been shown and described it will be understood that many changes and modifications may be made therein without departing from the spirit or scope of the present invention which is limited only by the appended claims.
The invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.
What is claimed is:
A moisture proof rotary control mechanism comprising a shaft housing, a rotatable control shaft journalled in said housing, a stub shaft having one end thereof fixed to one end of said rotatable shaft and extending at an angle thereto to form a crank therefor, a sleeve having a closed end rotatably mounted on said stub shaft, bearing means between the other end of said stub shaft and the closed end of said sleeve, said sleeve being of sufficient length to substantially enclose the stub shaft, a continuous covering of resilient moisture impervious material positioned over said sleeve and terminated in a moisture proof seal with said housing to enclose the sleeve, the stub shaft and said one end of said rotatable shaft, said covering including a central portion formed to tightly enclose said sleeve throughout a greater portion of its length measured from the closed end thereof and a base portion extending from the central portion with gradually increasing diameter and terminating with an internal configuration to form a tight fit With the end of said housing adjacent said one end of said rotatable shaft, and means clamping the base portion to said housing.
DONALD E. ALBERT.
REFERENCES CITED fhe following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,644,775 Fulton Oct. 11, 1927 1,736,974 King Nov. 26, 1929 2,965,834 Swennes -l Dec. 29, 1936 2,449,943 Gonsett et a1 May 4, 1948 FOREIGN PATENTS Number Country Date 115,172 Switzerland Aug. 16, 1926 217,306 Switzerland Feb. 2, 1942 323,768 Italy Apr. 15, 1936 92,097 Sweden Feb. 17, 1938
US594132A 1945-05-16 1945-05-16 Rotary control mechanism Expired - Lifetime US2539386A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607233A (en) * 1949-05-19 1952-08-19 Chatham Electronies Corp Pressuretight transmission
US2740858A (en) * 1953-07-24 1956-04-03 Gen Electric Flow switch
US2795144A (en) * 1953-05-11 1957-06-11 Morse Milton Moisture-proofing device
DE1013483B (en) * 1955-07-25 1957-08-08 Siemens Ag Dense leadthrough element for the transmission of rotary movements, especially for components of telecommunications technology
US2830463A (en) * 1950-05-22 1958-04-15 Outboard Marine Corp Wobble grip control
US2878348A (en) * 1956-06-07 1959-03-17 Haydon Switch Inc Sealed switch and actuator assembly
US2901913A (en) * 1954-03-26 1959-09-01 Daystrom Inc Hermetic sealing arrangements for electrical measuring instruments
US3043148A (en) * 1960-04-15 1962-07-10 Theodore H Krueger Seal means for a push button
US3175420A (en) * 1961-05-22 1965-03-30 Co Bar Entpr Inc Extension device for toggle switches
US3577793A (en) * 1969-06-30 1971-05-04 Allen V C Davis Mechanical motion transmitter
US3928742A (en) * 1974-07-12 1975-12-23 Rule Industries Fluid-tight flexible cover
US4823397A (en) * 1988-01-29 1989-04-18 Southern Marine Research, Inc. Transceiver with moisture resistant cover for thumbwheels and the like
US7964812B1 (en) 2009-06-26 2011-06-21 A.P.M. Hexseal Corporation Switch boot

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH115177A (en) * 1925-07-28 1926-08-16 Johann Fuelscher Device for transmitting a rotational movement to a circulating element arranged in a closed space.
US1644775A (en) * 1922-03-31 1927-10-11 Fulton Sylphon Co Packless valve
US1736974A (en) * 1920-08-03 1929-11-26 Gen Motors Res Corp Pump for refrigeration systems
US2065834A (en) * 1933-06-12 1936-12-29 Borg Warner Water pump
CH217306A (en) * 1940-08-24 1941-10-15 Berger Karl Device for the pressure- and vacuum-tight execution of a rotary movement through a wall.
US2440943A (en) * 1944-09-19 1948-05-04 Robert R Gonsett Waterproof shield for toggle switches

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1736974A (en) * 1920-08-03 1929-11-26 Gen Motors Res Corp Pump for refrigeration systems
US1644775A (en) * 1922-03-31 1927-10-11 Fulton Sylphon Co Packless valve
CH115177A (en) * 1925-07-28 1926-08-16 Johann Fuelscher Device for transmitting a rotational movement to a circulating element arranged in a closed space.
US2065834A (en) * 1933-06-12 1936-12-29 Borg Warner Water pump
CH217306A (en) * 1940-08-24 1941-10-15 Berger Karl Device for the pressure- and vacuum-tight execution of a rotary movement through a wall.
US2440943A (en) * 1944-09-19 1948-05-04 Robert R Gonsett Waterproof shield for toggle switches

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607233A (en) * 1949-05-19 1952-08-19 Chatham Electronies Corp Pressuretight transmission
US2830463A (en) * 1950-05-22 1958-04-15 Outboard Marine Corp Wobble grip control
US2795144A (en) * 1953-05-11 1957-06-11 Morse Milton Moisture-proofing device
US2740858A (en) * 1953-07-24 1956-04-03 Gen Electric Flow switch
US2901913A (en) * 1954-03-26 1959-09-01 Daystrom Inc Hermetic sealing arrangements for electrical measuring instruments
DE1013483B (en) * 1955-07-25 1957-08-08 Siemens Ag Dense leadthrough element for the transmission of rotary movements, especially for components of telecommunications technology
US2878348A (en) * 1956-06-07 1959-03-17 Haydon Switch Inc Sealed switch and actuator assembly
US3043148A (en) * 1960-04-15 1962-07-10 Theodore H Krueger Seal means for a push button
US3175420A (en) * 1961-05-22 1965-03-30 Co Bar Entpr Inc Extension device for toggle switches
US3577793A (en) * 1969-06-30 1971-05-04 Allen V C Davis Mechanical motion transmitter
US3928742A (en) * 1974-07-12 1975-12-23 Rule Industries Fluid-tight flexible cover
US4823397A (en) * 1988-01-29 1989-04-18 Southern Marine Research, Inc. Transceiver with moisture resistant cover for thumbwheels and the like
US7964812B1 (en) 2009-06-26 2011-06-21 A.P.M. Hexseal Corporation Switch boot

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