US1365378A - Drive for phonograph-governors - Google Patents

Drive for phonograph-governors Download PDF

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Publication number
US1365378A
US1365378A US384319A US38431920A US1365378A US 1365378 A US1365378 A US 1365378A US 384319 A US384319 A US 384319A US 38431920 A US38431920 A US 38431920A US 1365378 A US1365378 A US 1365378A
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United States
Prior art keywords
worm
drive
governor
phonograph
governors
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Expired - Lifetime
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US384319A
Inventor
George T Cherington
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Individual
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Individual
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Priority to US384319A priority Critical patent/US1365378A/en
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • 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
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/19647—Parallel axes or shafts
    • Y10T74/19651—External type

Definitions

  • My invention relates to that class of devices which are employed for driving centrifugal phonograph governors which are customarily driven by means of a worm and worm-wheel, or a worm and spiral-gear.
  • the governor has to travel at a very high rate of speed, it results in the production of more or less noise which is seemingly unavoidable or very objectionable because of its interference with the sound waves of the music from the record, although numerous attempts have been made to overcome this highly objectionable feature.
  • My invention has for its object to provide a drive which will be so noiseless in operation that it cannot be heard even at a distance of a few inches. lvily means of accomplishing the foregoing object may be more readily understood by having reference to the accompanying drawings which are hereunto annexed and are a part of this specification, in which- The figure is a side elevation of a drive .equipped with my improvement.
  • the governor 1 is carried by the governor shaft 2, upon which is mounted a worm adapted to mesh with the teeth of the worm-gear or wheel at, driven by the motor of the phonograph (not shown).
  • the governor is provided with the customary disk 5 for regulating its speed, by contacting with the brake 6 which is provided with the usual felt brake-shoe 7.
  • the worm 3 is made of leather which is first thoroughly impregnated with oil and then with graphite. The worm is then cut, and if it appears that Specification of Letters Patent.
  • the impregnating process has not succeeded any in causing the oil and graphite to penetrate deeper than the teeth which are hobbed in the worm, the process is repeated so as to produce a worm formed of leather which is completely impregnated with oil and graphite.
  • the worm is then secured to the governor shaft 2 and in mesh with the teeth of the worm-wheel 4.
  • a governor drive for phonographs comprising the combination with a governor having a shaft, of a worm mounted on said shaft, said worm being formed of leather which is impregnated with graphite and oil, and a worm-wheel to drive said worm.
  • a governor drive for phonographs comprising the combination with a governor having a shaft, of a worm mounted on said shaft, said worm being formed of leather which is impregnated with anti-friction inaterial and means to drive said worm.
  • a governor drive for phonographs comprising the combination with a governor having a shaft, of a worm mounted on said shaft, said .vorm being formed of leather which is entirely impregnated with graphite and oil, and a worm-wheel to drive said worm...

Description

'e. T. CHERINGTON.
DRIVE FOR PHONOGRAPH GOVERNORS.
APPLICATION FlLED MAY 26. 1920.
1,865,378, Patented Jan. 11, 1921.
INVE TOR A TTORNE Y8 UNITED STATES PATENT OFFICE.
GEORGE T. CHERINGTON, OF WAUKEGAN, ILLINOIS.
DRIVE FOR PHONOGRAPH-GOVERNORS.
Application filed May 26,
To all to 710m it may concern Be it known that I, GEORGE T. GHERING- TON, a citizen of the United States, and resident of Waukegan, county of Lake, and State of Illinois, have invented a certain new and useful Improvement in Drives for Phonograph-Governors, of which the following is a specification.
My invention relates to that class of devices which are employed for driving centrifugal phonograph governors which are customarily driven by means of a worm and worm-wheel, or a worm and spiral-gear. As the governor has to travel at a very high rate of speed, it results in the production of more or less noise which is seemingly unavoidable or very objectionable because of its interference with the sound waves of the music from the record, although numerous attempts have been made to overcome this highly objectionable feature.
My invention has for its object to provide a drive which will be so noiseless in operation that it cannot be heard even at a distance of a few inches. lvily means of accomplishing the foregoing object may be more readily understood by having reference to the accompanying drawings which are hereunto annexed and are a part of this specification, in which- The figure is a side elevation of a drive .equipped with my improvement.
Similar reference numerals refer to similar parts throughout the entire description.
As shown in the drawings, the governor 1 is carried by the governor shaft 2, upon which is mounted a worm adapted to mesh with the teeth of the worm-gear or wheel at, driven by the motor of the phonograph (not shown).
The governor is provided with the customary disk 5 for regulating its speed, by contacting with the brake 6 which is provided with the usual felt brake-shoe 7.
In utilizing my invention, the worm 3 is made of leather which is first thoroughly impregnated with oil and then with graphite. The worm is then cut, and if it appears that Specification of Letters Patent.
Patented Jan. 11, 1921.
Serial No. 384,319.
the impregnating process has not succeeded any in causing the oil and graphite to penetrate deeper than the teeth which are hobbed in the worm, the process is repeated so as to produce a worm formed of leather which is completely impregnated with oil and graphite. The worm is then secured to the governor shaft 2 and in mesh with the teeth of the worm-wheel 4.
l have demonstrated in practice that where other leans are employed for this drive, the sound caused by the meshing of the teeth when the governor is traveling at high speed, is distinctly audible at from five to fifty feet distance, according to the different kinds of material employed, whereas where my form of drive is employed, it is impossible to detect the noise of the gears even when the ear is placed within a few inches of the device, with the result that there is no interference at all with the sound waves produced by the record, thus resulting in a highly improved machine.
Having described my invention what I regard as new and desire to secure by Letters Patent is:
l. A governor drive for phonographs comprising the combination with a governor having a shaft, of a worm mounted on said shaft, said worm being formed of leather which is impregnated with graphite and oil, and a worm-wheel to drive said worm.
2. A governor drive for phonographs comprising the combination with a governor having a shaft, of a worm mounted on said shaft, said worm being formed of leather which is impregnated with anti-friction inaterial and means to drive said worm.
3. A governor drive for phonographs comprising the combination with a governor having a shaft, of a worm mounted on said shaft, said .vorm being formed of leather which is entirely impregnated with graphite and oil, and a worm-wheel to drive said worm...
In testimony whereof, I have signed the foregoing specification.
GEORGE T. CHERINGTON.
US384319A 1920-05-26 1920-05-26 Drive for phonograph-governors Expired - Lifetime US1365378A (en)

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