US2497867A - Moistureproof construction for shafts - Google Patents
Moistureproof construction for shafts Download PDFInfo
- Publication number
- US2497867A US2497867A US603995A US60399545A US2497867A US 2497867 A US2497867 A US 2497867A US 603995 A US603995 A US 603995A US 60399545 A US60399545 A US 60399545A US 2497867 A US2497867 A US 2497867A
- Authority
- US
- United States
- Prior art keywords
- shaft
- moistureproof
- bellows
- shafts
- construction
- 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
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G25/00—Other details or appurtenances of control mechanisms, e.g. supporting intermediate members elastically
- G05G25/04—Sealing against entry of dust, weather or the like
-
- 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
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/12—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for conveying rotary motion
- F16H21/14—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for conveying rotary motion by means of cranks, eccentrics, or like members fixed to one rotary member and guided along tracks on the other
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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
- 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
- F16J15/525—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 fixed to a part of a transmission performing a wobbling or a circular translatory movement
Definitions
- This invention relates to a moistureproof device for transmitting rotary motion through a barrier or partition.
- the present invention provides a gas and moistureproof seal by transmitting rotary motion through an imperforate member.
- An object of this invention is to provide a device for transmitting rotary motion while excluding all moisture.
- Another object is to provide a device for transmitting rotary motion through an imperforate member.
- FIG. 1 is a central, vertical, cross-sectional view of a device embodying the present invention
- Fig. 2 is a cross-sectional view taken on the line 2--2 of Fig. 1.
- the front panel of the instrument is provided with an inwardly projecting portion 2 having an aperture 3 therethrough.
- a shaft 5 having an enlarged portion 5 forming a shoulder at which abuts the projecting portion 2 of the instrument panel I.
- a knob or dial l is fixedly secured to the end of the shaft 4 projecting outwardly of the panel I.
- a pin 8 prevents rotation of the dial 7 with respect to the shaft i.
- the end of the shaft extending inside the panel l is provided with a preferably circular member 9 eccentrically mounted on shaft 4.
- the circular member 9 may be made integral with the shaft 4 or may be produced separately and then secured thereon.
- a metal bellows It is positioned over the circular member 9 with the skirt portion thereof soldered or otherwise sealed to the panel I about the inwardly projecting portion '2 and shaft 4 so as to provide an air tight connection therewith.
- the bellows is preferably made of light metal so that the pleated portion thereof may be distorted or bent as the member 9 rotates about the shaft 4.
- a wearing cap I2 is positioned over the outer end of the bellows l0 and is also secured to the bellows preferably by soldering.
- a casing I3 having a bearing portion M in which shaft I5 rotates.
- Shaft I5 is so mount-ed that it is in alignment with the shaft 4.
- rotation of the dial or knob I rotates the shaft 4 and the circular member 9 eccentrically mounted on the inner end thereof.
- the member 9 rotates, it slides around the inner end of the bellows and displaces the same about the shaft 4. This in turn causes the eccentrically mounted cupped-shaped member Hi to be rotated with the eccentrically mounted member 9.
- a moistureproof device for transmitting rotary motion through a barrier comprising a rotatable shaft projecting through said barrier, a circular member eccentrically mounted on said shaft, a metal bellows positioned over said member for being secured to said barrier, a wearing socket secured to the inside of said bellows and fitting over said member, a wearing cap positioned over said wearing socket and said bellows and secured to said bellows, a second shaft outside said bellows aligned with said first shaft, a circular cup-shaped member eccentrically mounted on said second shaft and fitting over said wearing cap, whereby rotation of one shaft causes rotation of the other.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Telephone Set Structure (AREA)
Description
Feb. 21, 1950 T. CYMMER MOISTUREPROOF CONSTRUCTION FOR SHAFTS Filed July 9, 1945 1N VEN TOR. THOMAS CYMMEIZ.
I LW
A TTO/ZNE X Patented F eb. 21, 195
UNITED STATES PATENT MOISTUREPROOF CO SHAF NSTRUCTION FOR TS Thomas Cymmer, Jersey City, N. J. Application July 9, 1945, Serial No. 603,995
1 Claim.
(Granted under the act of March 3, 1883, as
amended April 30, 1928; 370
This invention relates to a moistureproof device for transmitting rotary motion through a barrier or partition.
It is essential that many devices such as some radio and navigational equipment, be completely moistureproof. As these devices are externally controlled or adjusted by means of knobs and dials, considerable difficulty has been encountered in making them moistureproof. Packing glands around the shafts have previously been employed but they have not excluded all moisture.
The present invention provides a gas and moistureproof seal by transmitting rotary motion through an imperforate member.
An object of this invention is to provide a device for transmitting rotary motion while excluding all moisture.
Another object is to provide a device for transmitting rotary motion through an imperforate member.
Further objects and advantages of this invention, as well as its construction, arrangement and operation, will be apparent from the following description and claim in connection with the accompanying drawing, in which Fig. 1 is a central, vertical, cross-sectional view of a device embodying the present invention,
Fig. 2 is a cross-sectional view taken on the line 2--2 of Fig. 1.
The front panel of the instrument is provided with an inwardly projecting portion 2 having an aperture 3 therethrough. Mounted in the aperture 3 is a shaft 5 having an enlarged portion 5 forming a shoulder at which abuts the projecting portion 2 of the instrument panel I. A knob or dial l is fixedly secured to the end of the shaft 4 projecting outwardly of the panel I. A pin 8 prevents rotation of the dial 7 with respect to the shaft i. The end of the shaft extending inside the panel l is provided with a preferably circular member 9 eccentrically mounted on shaft 4. The circular member 9 may be made integral with the shaft 4 or may be produced separately and then secured thereon.
A metal bellows It is positioned over the circular member 9 with the skirt portion thereof soldered or otherwise sealed to the panel I about the inwardly projecting portion '2 and shaft 4 so as to provide an air tight connection therewith. The bellows is preferably made of light metal so that the pleated portion thereof may be distorted or bent as the member 9 rotates about the shaft 4. secured within the end of the metal bellows l0, preferably by soldering, is a wearing socket ll shaped to fit over the circular member 9. A wearing cap I2 is positioned over the outer end of the bellows l0 and is also secured to the bellows preferably by soldering.
Mounted on the inner face of panel I is a casing I3 having a bearing portion M in which shaft I5 rotates. Shaft I5 is so mount-ed that it is in alignment with the shaft 4. There is eccentrically mounted on the shaft I5 within the casing 13 a circular cup-shaped member IE which fits over the wearing cap !2 mounted on the end of the bellows.
With this construction no moisture can pass through the rotary transmission device to the inside of the equipment with which it is used.
In operation, rotation of the dial or knob I rotates the shaft 4 and the circular member 9 eccentrically mounted on the inner end thereof. As the member 9 rotates, it slides around the inner end of the bellows and displaces the same about the shaft 4. This in turn causes the eccentrically mounted cupped-shaped member Hi to be rotated with the eccentrically mounted member 9.
Modifications and changes can be made in the embodiment of this invention without departing from the spirit and scope of the invention.
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 moistureproof device for transmitting rotary motion through a barrier comprising a rotatable shaft projecting through said barrier, a circular member eccentrically mounted on said shaft, a metal bellows positioned over said member for being secured to said barrier, a wearing socket secured to the inside of said bellows and fitting over said member, a wearing cap positioned over said wearing socket and said bellows and secured to said bellows, a second shaft outside said bellows aligned with said first shaft, a circular cup-shaped member eccentrically mounted on said second shaft and fitting over said wearing cap, whereby rotation of one shaft causes rotation of the other.
THOMAS CYMMER.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,436,444 Holmes Nov. 21, 1922 1,736,974 King Nov. 26, 1929 2,119,955 Litton June '7, 1938 FOREIGN PATENTS Number Country Date 92,097 Sweden of 1938 98,132 Switzerland of 1923
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US603995A US2497867A (en) | 1945-07-09 | 1945-07-09 | Moistureproof construction for shafts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US603995A US2497867A (en) | 1945-07-09 | 1945-07-09 | Moistureproof construction for shafts |
Publications (1)
Publication Number | Publication Date |
---|---|
US2497867A true US2497867A (en) | 1950-02-21 |
Family
ID=24417751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US603995A Expired - Lifetime US2497867A (en) | 1945-07-09 | 1945-07-09 | Moistureproof construction for shafts |
Country Status (1)
Country | Link |
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US (1) | US2497867A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2617306A (en) * | 1949-09-15 | 1952-11-11 | Lewis Eng Co | Rotation-transmitting device |
US2742790A (en) * | 1952-10-31 | 1956-04-24 | Anton R Nelson | Sealed gear casing and driving means |
US2844237A (en) * | 1955-07-07 | 1958-07-22 | William L Morse | Torque control |
US2863336A (en) * | 1956-09-07 | 1958-12-09 | Burroughs Corp | Apparatus for actuating sealed instruments |
US2943495A (en) * | 1958-03-31 | 1960-07-05 | United Shoe Machinery Corp | Means for producing motion through sealed wall |
US3248678A (en) * | 1963-05-01 | 1966-04-26 | Bendix Corp | Rotary variable resistor |
US3293926A (en) * | 1964-12-23 | 1966-12-27 | Rca Corp | Sealed rotary drive apparatus |
US3457795A (en) * | 1967-12-08 | 1969-07-29 | Mechanized Science Seals Inc | Rotary seal assembly |
FR2324938A1 (en) * | 1974-01-15 | 1977-04-15 | Gachot Sa | Shaft transmission through radioactively contaminated wall - operates on glove box principle with closed bellows tube |
US4216677A (en) * | 1978-07-17 | 1980-08-12 | Borg-Warner Corporation | Hermetically sealed rotary drive apparatus |
WO1983002654A1 (en) * | 1982-01-22 | 1983-08-04 | John Michael Starling | Drive units for effecting torque-transmission via a non-rotating sealing tube |
EP0180903A2 (en) * | 1984-11-07 | 1986-05-14 | Klein, Schanzlin & Becker Aktiengesellschaft | Hermetically sealed shaft passage for oscillating and rotational motion |
US4767396A (en) * | 1987-03-03 | 1988-08-30 | Haemonetics Corporation | Method and apparatus for processing biological fluids |
US5193977A (en) * | 1991-11-22 | 1993-03-16 | Don Dame | Flexible membrane sealless centrifugal pump |
US5243867A (en) * | 1991-09-26 | 1993-09-14 | Huntington Mechanical Laboratories, Inc. | Mechanism for feedthrough of rotary motion to a sealed chamber |
US20160038733A1 (en) * | 2014-08-11 | 2016-02-11 | Medtronic, Inc. | Mechanical feedthroughs for implantable medical device |
US9447853B2 (en) | 2013-02-28 | 2016-09-20 | Technetics Group, Llc | Coaxial rotary shaft feedthrough with backlash reduction |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1436444A (en) * | 1920-02-26 | 1922-11-21 | Bradford B Holmes | Refrigerating apparatus |
CH98132A (en) * | 1921-06-27 | 1923-03-01 | Genevoise Instr Physique | Device for the mechanical drive of a machine enclosed in a hermetically sealed enclosure. |
US1736974A (en) * | 1920-08-03 | 1929-11-26 | Gen Motors Res Corp | Pump for refrigeration systems |
US2119955A (en) * | 1936-06-04 | 1938-06-07 | Charles V Litton | Vacuum-tight power transmission device |
-
1945
- 1945-07-09 US US603995A patent/US2497867A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1436444A (en) * | 1920-02-26 | 1922-11-21 | Bradford B Holmes | Refrigerating apparatus |
US1736974A (en) * | 1920-08-03 | 1929-11-26 | Gen Motors Res Corp | Pump for refrigeration systems |
CH98132A (en) * | 1921-06-27 | 1923-03-01 | Genevoise Instr Physique | Device for the mechanical drive of a machine enclosed in a hermetically sealed enclosure. |
US2119955A (en) * | 1936-06-04 | 1938-06-07 | Charles V Litton | Vacuum-tight power transmission device |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2617306A (en) * | 1949-09-15 | 1952-11-11 | Lewis Eng Co | Rotation-transmitting device |
US2742790A (en) * | 1952-10-31 | 1956-04-24 | Anton R Nelson | Sealed gear casing and driving means |
US2844237A (en) * | 1955-07-07 | 1958-07-22 | William L Morse | Torque control |
US2863336A (en) * | 1956-09-07 | 1958-12-09 | Burroughs Corp | Apparatus for actuating sealed instruments |
US2943495A (en) * | 1958-03-31 | 1960-07-05 | United Shoe Machinery Corp | Means for producing motion through sealed wall |
US3248678A (en) * | 1963-05-01 | 1966-04-26 | Bendix Corp | Rotary variable resistor |
US3293926A (en) * | 1964-12-23 | 1966-12-27 | Rca Corp | Sealed rotary drive apparatus |
US3457795A (en) * | 1967-12-08 | 1969-07-29 | Mechanized Science Seals Inc | Rotary seal assembly |
FR2324938A1 (en) * | 1974-01-15 | 1977-04-15 | Gachot Sa | Shaft transmission through radioactively contaminated wall - operates on glove box principle with closed bellows tube |
US4216677A (en) * | 1978-07-17 | 1980-08-12 | Borg-Warner Corporation | Hermetically sealed rotary drive apparatus |
WO1983002654A1 (en) * | 1982-01-22 | 1983-08-04 | John Michael Starling | Drive units for effecting torque-transmission via a non-rotating sealing tube |
US4569669A (en) * | 1982-01-22 | 1986-02-11 | Starling John M | Drive units for effecting torque-transmission via a non-rotating sealing tube |
EP0180903A2 (en) * | 1984-11-07 | 1986-05-14 | Klein, Schanzlin & Becker Aktiengesellschaft | Hermetically sealed shaft passage for oscillating and rotational motion |
EP0180903A3 (en) * | 1984-11-07 | 1986-09-03 | Klein, Schanzlin & Becker Aktiengesellschaft | Hermetically sealed shaft passage for oscillating and rotational motion |
US4767396A (en) * | 1987-03-03 | 1988-08-30 | Haemonetics Corporation | Method and apparatus for processing biological fluids |
US5243867A (en) * | 1991-09-26 | 1993-09-14 | Huntington Mechanical Laboratories, Inc. | Mechanism for feedthrough of rotary motion to a sealed chamber |
US5193977A (en) * | 1991-11-22 | 1993-03-16 | Don Dame | Flexible membrane sealless centrifugal pump |
US9447853B2 (en) | 2013-02-28 | 2016-09-20 | Technetics Group, Llc | Coaxial rotary shaft feedthrough with backlash reduction |
US20160038733A1 (en) * | 2014-08-11 | 2016-02-11 | Medtronic, Inc. | Mechanical feedthroughs for implantable medical device |
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