US1869565A - Resonant mechanism - Google Patents

Resonant mechanism Download PDF

Info

Publication number
US1869565A
US1869565A US520318A US52031831A US1869565A US 1869565 A US1869565 A US 1869565A US 520318 A US520318 A US 520318A US 52031831 A US52031831 A US 52031831A US 1869565 A US1869565 A US 1869565A
Authority
US
United States
Prior art keywords
reeds
resonant
group
reed
frequencies
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
US520318A
Other languages
English (en)
Inventor
Koenig Werner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Landis and Gyr AG filed Critical Landis and Gyr AG
Application granted granted Critical
Publication of US1869565A publication Critical patent/US1869565A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/30—Electromagnetic relays specially adapted for actuation by AC
    • H01H51/32—Frequency relays; Mechanically-tuned relays

Definitions

  • the present invention relates to resonant mechanism and more particularly to mechanism employing a resonant reed which is vibrated at its resonant frequency by means of a driving mechanism, such as an electromagnet.
  • the invention consists in the novel parts,
  • FIG. 1 is a side elevation of a resonant mechanism in accordance with the present invention
  • Figure 2 is an end elevation of the mechanism shown in Figure 1;
  • Figure 3 is a side elevation of a series of resonant reeds in accordance with the present invention.
  • the present invention has for its object the provision of a series of resonant reeds which are interchangeable with each other and cover a Wide range of frequencies, thereby permitting any one of the reeds to be substituted for another without necessitating a change in the resonant mechanism as a whole.
  • a further object is the provision of a series of resonant reeds which cover a wide range of frequencies and differ from each other only very slightly in their several dimensions.
  • Still another object of the invention is the reduction of the cost of manufacturing resonant mechanisms responsive to a wide range of frequencies.
  • a plurality of groups each composed of a plurality of resonant reeds, are provided, all substantially similar to each other, but with tion of the reeds, cause a difference of 150 a vibrations per second between reeds of the same length.
  • small variably positionable clips are provided on the reeds so that they may be accurately tuned to the exact frequency desired.
  • the resonant mechanism comprises an electromagnetic driving system including a coil 10, supplied with the controlling alternating or pulsating electric current, which energizes the magnetic core 11, between the pole pieces of which are supported the free, or vibratory, ends of one or more resonant reeds 12.
  • the resonant reeds 12 are supported at one of their ends by means of the bar 13 which tightly clamps the reeds 12 against the base 14 by screws 15 and are supported in proper relation to the electromagnet by means of the permanent magnet 16, which is attached to the electromagnetic core 11 by means of screws 17
  • Bar 13 has a sufficient range of movement to accommodate different thicknesses of reed.
  • reed groups may be provided to cover the required range of frequencies.
  • these reeds are designated as a, b, c, a, b, 0, a, Z), and a".
  • the difference in frequency between the reeds having an a in their designation is 150 vibrations, while those designated with a b vary by 50 vibrations from the a reed of the corresponding group.
  • the reeds a, b and 0 are each provided with a relatively short and thin end portion 20, which is received between the clamping members 13 and 14 while in operative position.
  • the reeds a, b and 0' are provided with a vibratory portion 21, which is slightly greater in length than that of the first group, while the reeds a, b and c are provided with end portions 20 which are both thicker and longer than those of the first group, but are of the same length as the end portions of the second group.
  • the corresponding members of each group are of the same length, and as embodied, the reeds a, a and a are of equal lengh and slightly longer than the reeds b, b and b. Similarly, the reeds I), b and b" are slightly longer than the reeds c, c and c".
  • a small, variably positionable rider 23 comprising a bent piece of metal 24 conforming to the shape of the vibratory portion of the reed and clamped in position by tightening screw 25.
  • the rider 23 has such a mass related to that of the reed, that movement of the rider along the vibratory portion of the reed 21 will vary the frequency slightly more than 50 per second.
  • What I claim is 1.
  • a series of interchangeable resonant reeds of uniform length each comprising a vibratory portion and a thickened portion, to cover a wide range of frequencies, the several reeds varying in the dimensions of the vibratory portion to influence the frequency of vibration, those of each group differing from the remaining members of the group by variation in a particular dimension, while the groups differ from each other by variations in another dimension.
  • a series of interchangeable resonant reeds each comprising a vibratory portion and a thickened end portion, the series being divided into a plurality of groups, each group differing from the other groups in the size.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
US520318A 1930-03-12 1931-03-05 Resonant mechanism Expired - Lifetime US1869565A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH374168X 1930-03-12

Publications (1)

Publication Number Publication Date
US1869565A true US1869565A (en) 1932-08-02

Family

ID=4513522

Family Applications (1)

Application Number Title Priority Date Filing Date
US520318A Expired - Lifetime US1869565A (en) 1930-03-12 1931-03-05 Resonant mechanism

Country Status (3)

Country Link
US (1) US1869565A (fr)
FR (1) FR710480A (fr)
GB (1) GB374168A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919910A (en) * 1974-10-21 1975-11-18 Robert H Rust Electronic bass instrument

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2773223A (en) * 1955-05-16 1956-12-04 Gen Dynamics Corp High impedance telephone substation ringer
US3079555A (en) * 1958-01-21 1963-02-26 J B T Instr Inc Vibrating reed electro-responsive device
US3038363A (en) * 1959-03-17 1962-06-12 Wurlitzer Co Electronic piano
US3083605A (en) * 1959-10-12 1963-04-02 Reynold H Lewis Magnetic pickup for the bass section of accordion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919910A (en) * 1974-10-21 1975-11-18 Robert H Rust Electronic bass instrument

Also Published As

Publication number Publication date
GB374168A (en) 1932-06-09
FR710480A (fr) 1931-08-24

Similar Documents

Publication Publication Date Title
US1869565A (en) Resonant mechanism
US2895064A (en) Vibratory motor
US1637442A (en) Alternating-current selector
US2789177A (en) Synchronous vibrators
US2112560A (en) Electromechanical frequency selector
US1978583A (en) Electrical pick-up apparatus
US1907531A (en) Speed regulator
US3079555A (en) Vibrating reed electro-responsive device
US1844605A (en) Acoustic device
US996713A (en) Frequency-measuring instrument.
US2052008A (en) Selective transformer
US1896195A (en) Electromagnetic signaling device
US2399297A (en) Frequency indicator for vibrating reed type alternators
US978864A (en) Harmonic party-line telephone-ringer.
US2243911A (en) Alternating current relay
US2844767A (en) Telephone substation ringers
US2692380A (en) Ringer
US2442270A (en) Vibrator
US1335119A (en) Holding means for magnets
US3156798A (en) Resonant frequency reed relay
US2890447A (en) Electromagnetic drive system for relays, ringers and the like
US2675441A (en) Switching device
US2050165A (en) Electromechanical frequency selector
US2425179A (en) Split-phase relay
US1794513A (en) Electromagnetic light-modulating device