US3175352A - Bell alarm damping device - Google Patents

Bell alarm damping device Download PDF

Info

Publication number
US3175352A
US3175352A US279898A US27989863A US3175352A US 3175352 A US3175352 A US 3175352A US 279898 A US279898 A US 279898A US 27989863 A US27989863 A US 27989863A US 3175352 A US3175352 A US 3175352A
Authority
US
United States
Prior art keywords
spring
hammer
bell
arm
alarm
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
US279898A
Other languages
English (en)
Inventor
Jr Harry Albinger
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to US279898A priority Critical patent/US3175352A/en
Priority to GB15449/64A priority patent/GB1055654A/en
Priority to CH599164D priority patent/CH599164A4/xx
Priority to CH599164A priority patent/CH443155A/de
Application granted granted Critical
Publication of US3175352A publication Critical patent/US3175352A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
    • G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
    • G10K1/08—Details or accessories of general applicability
    • G10K1/10—Sounding members; Mounting thereof; Clappers or other strikers
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B23/00—Arrangements producing acoustic signals at preselected times
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times

Definitions

  • the invention relates to a clock of the type including a bell and a hammer arm with a bell hammer attached thereto.
  • the arm is so situated with respect to the bell that the hammer is normally positioned adjacent the bell.
  • a clock driven force for engaging the hammer arm in a manner to move the hammer away from the bell and then release the arm to permit the hammer to strike the bell.
  • the clock may be further provided with the conventional arrangement for preventing movement of the hammer arm and the hammer except during a predetermined alarm period and with a manual shut-oil for preventing movement of the hammer arm.
  • FlG. 1 is a rear perspective view of the internal components of an alarm clock embodying the invention
  • FIG. 2 is a top plan view of the alarm mechanism of FIG. 1;
  • FIG. 3 is a perspective view of the snubbing or damp ing element of the invention.
  • FIG. 4 is a side elevational view of the alarm striking mechanism shown in FIG. 1.
  • an alarm clock including a front support plate 2, a middle support plate 4 connected by a plurality of pillars, one of which is shown at (5, to the stator section of a typical self-starting synchronous electric motor 8.
  • the motor 8 drives a suitable timing unit ill which in turn is connected to drive a suitable gear train, portions of which are shown at 12 and 14.
  • the clock will of course be also provided with the other usual clock components such as the hands and face.
  • the hands may be set by a typical manual control 16.
  • an elongated, flat hammer spring or arm 18 made of phosphor bronze or other flexible material and having one end fixed by suitable fastening members 20 to the middle support plate 4.
  • a hammer 22 which cooperates with a bell 24 to provide the desired alarm signal.
  • the bell is attached by a suitable centrally located fastening device 26 to the front plate 2.
  • the spring 18 is spaced slightly above the upper edge of middle support plate 4 with its major flat surface in roughly perpendicular relation to the plate. In its unstressed position, the spring 18 is normally positioned so that the hammer 22 is slightly spaced from hell 24. Therefore, it will be readily understood that the hammer 22 may be made to strike the bell 24 by moving the free end of the spring arm 18 upwardly and then releasing the spring so that the flexibility of the spring causes the hammer to be sharply struck against the surface of the bell.
  • the clock is equipped with a rotary gear 28, seen in FIGS. 2 and 4, which is continuously rotated by the clock mechanism.
  • the gear 28 is integrally formed or otherwise suitably connected to a cam gear 30 having a plurality of teeth or projections forming cam surfaces.
  • the spring 18 is provided with a projection 32 having a vertically disposed depending portion 320 and a horizontally extending portion 3212, as seen in FIGS. 2 and 4.
  • the horizontally extending portion 32b extends into the path of the cam gear teeth so that when a tooth strikes the projection the movable part of spring 18 is bent in a clockwise direction about its fixed end as viewed in FIG. 1. This action of course raises the hammer 22 further away from bell 24.
  • the cam gear 30 continues to rotate the projection 32b drops into a space between the cam gear teeth thus permitting the spring 18 to move in response to its own flexibility causing hammer 22 to move in a counterclockwise direction and strike the bell.
  • the gear 28 and cam gear 30 may be rotated at the speed desired to obtain the desired sound from the bell and hammer. It has been found that one pleasing sound effect may be obtained by allowing the hammer to strike at a frequency rate of once per second or less. Also, by providing irregular spacing between the teeth of cam gear 30 irregular or intermittent ringing may be obtained in the desired sequence.
  • the snubbing or damping element 36 is a flat elongated member having an enlarged portion 36a with aperatures for facilitating mounting on the middle support plate 4. It should be noted that the number of parts required for the mechanism are minimized by mounting the snubbing element 36 and the spring 18 with the same fastening devices 20. As seen from the drawings, the end 361; of the element engages a downwardly extending portion 38 of the spring 18. The flat surface of element 36 is arranged in substantially pependicular relation to the major flat surface of spring 18. Thus, in efiiect the element 36 contacts an edge surface of spring 13.
  • the spring portion 38 extends rearwardly from the plane of end 36a of element 36 when the element is attached to the supporting plate, the opposite end 3617 is forced a small distance to the rear. This produces a slight stress on the spring-like element 36 which is made of phosphor bronze or other suitable flexible material. This, in turn, produces an edgewise force on spring 18 which is substantially perpendicular to the direction of the spring vibration.
  • the clock is further provided with a suitable arrangement which normally holds the spring arm 18 out of engagement with the cam 31 except when automatically released by the clock mechanism during a predetermined alarm period. Since such arrangements are well known and do not form an important part of the present invention an example of such will not be shown or described.
  • a suitable location in which such a control element could be placed to move the spring 18 is beneath the rearwardly extending tab 40 portion which is integrally connected with the depending portion 38 on spring 18. When the tab is released the spring will move downwardly unless otherwise restrained.
  • the clock should also be provided with a suitable manual control for shutting oft" the alarm at will and for releasing the alarm when automatic alarm operation is desired.
  • a shut-oil lever 42 FIG. 1, slidably mounted in slots formed in middle plate 4 and a plate extension 44 mounted on the stator of motor 8.
  • the lever 42 is provided with a cam portion 46 which is sloped to cooperate with a similarly sloped portion 48 integrally formed with tab 4% of spring 18. It is no doubt readily apparent that when the lever 4-2 is pushed inwardly toward the front of the clock, surface 46 engages portion 48 causing the tab as and spring 18 to move upwardly so that the projection 32 is held out of driving engagement with cam 30. Conversely, when the lever 42 is pulled rearwardly spring arm 18 is released. It should be noted that a minimum number of parts are required by forming projection 32 and portions 38, 40 and 48 integrally with the spring 8.
  • a bell a flexible hammer spring having a fixed portion and a movable portion, a bell hammer attached to the movable portion of said spring, said spring being so positioned that the hammer is positioned in striking relation to said bell, means for moving said spring to move said hammer away from said bell and for releasing said spring to permit said hammer to strike said bell, and means for preventing said hammer from striking said bell more than once each time said spring is moved by said spring moving means comprising a flexible element producing a force on said spring in a direction substantially perpendicular to the striking movement of said spring.
  • an alarm clock an alarm bell, a flat flexible hammer spring having one fixed end and one movable end, a bell hammer attached to the movable end of said spring, said spring being so positioned that the hammer is in striking relation with said bell, means for flexing said spring to move said hammer away from said bell and for releasing said spring to permit said hammer to strike said bell, clock means for preventing movement of said spring and hammer except during a predetermined alarm period, manual means for preventing movement of said spring by said cam, and means for preventing said hammer from engaging said bell more than once each time said spring is moved by said spring flexing means comprising a flexible element producing an edgewise force on said spring.
  • a bell a flat flexible hammer spring having one fixed end and one movable end, a bell hammer attached to the movable end, said spring and hammer being arranged so that the hammer may engage said hell by the movement of said spring, means for engaging said spring to move said hammer away from said bell and for releasing said spring to permit said hammer to strike said bell, and a fiat flexible element having its flat surface arranged in perpendicular relation to the flat surface of said spring, said element having one end fixed with respect to said spring fixed end and having its other end engaging the movable portion of said spring to provide a damping action which present said hamrner from striking said bell more than once each time said spring is moved and released by said cam gear.
  • an alarm clock an alarm bell, a fiat flexible hammer spring having a fixed portion and a movable portion, a bell hammer attached to the movable portion and positioned to be struck against said bell, a continuously rotating cam gear for moving said spring in a manner to move said hammer away from said bell and for releasing said spring to permit said hammer to strike said bell, clock means for preventing said cam from moving said spring and hammer except during a predetermined alarm period, manual means movable at will for preventing said cam from moving said spring, and a flat flexible element having its flat surface contacting said spring in perpendicular relation to the flat surface of said spring, said element having one end fixed with respect to said spring fixed end and having its other end urging against the movable portion of said spring to provide a damping action which prevents said hammer from strik ing said bell more than once each time said spring is moved and released by said cam gear.
  • a flexible hammer spring having a fixed portion and a movable portion, a bell hammer attached to the movable portion of said spring, a bell positioned in the path of said hammer, a clock driven cam gear, said spring having a projection extending into the path of said cam gear teeth so that the cam surfaces move and release said spring at a predetermined frequency causing said hammer to be moved away from said bell and released to strike said bell at the predetermined frequency, a portion depending from said spring movable portion and a flexible element engaging said depending portion of said spring to provide a force on said spring in a direction substantially perpendicular to the striking movement of said spring for quickly damping vibration of said spring whenever said spring is moved and released by said cam gear.
  • a flexible hammer spring having a fixed portion and a movable portion, a hell hammer attached to the movable portion of said spring, a bell positioned in the path of said hammer, rotary means for flexing and releasing said spring at a predetermined frequency causing said hammer to strike said bell at the predetermined frequency, a tab extending from said spring movable portion, clock means for engaging said tab to prevent said rotary means from actuating said spring except during a predetermined alarm period, manual means movable at Will to engage said tab for preventing said rotary means from actuating said spring and a flexible t5 element engaging said spring and exerting a damping force on said spring in a direction substantially perpendicular to the striking movement of said spring for quickly damping vibration of said spring so that said hammer only engages said bell once each time said spring is flexed and released by said rotary means.
  • an alarm clock an alarm bell, a flexible hammer spring having a fixed end and a movable end, a bell hammer attached to the movable end of said spring, said spring being so positioned that the hammer is positioned in striking relation to said bell, means for moving said spring to move said hammer away from said bell and for releasing said spring to permit said hammer to strike said bell, and means for preventing said hammer from striking said bell more than once each time said spring is moved by said spring moving means comprising a flexible element having one end fixed with respect to the fixed end of said hammer spring and having its other end engaging said spring intermediate the spring ends to produce force on the spring in a direction substantially perpendicular to the striking movement of said spring.

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Electromechanical Clocks (AREA)
US279898A 1963-05-13 1963-05-13 Bell alarm damping device Expired - Lifetime US3175352A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US279898A US3175352A (en) 1963-05-13 1963-05-13 Bell alarm damping device
GB15449/64A GB1055654A (en) 1963-05-13 1964-04-14 Improvements in single stroke bell mechanisms for alarm clocks
CH599164D CH599164A4 (de) 1963-05-13 1964-05-08
CH599164A CH443155A (de) 1963-05-13 1964-05-08 Läutwerk für Zeitmessgeräte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US279898A US3175352A (en) 1963-05-13 1963-05-13 Bell alarm damping device

Publications (1)

Publication Number Publication Date
US3175352A true US3175352A (en) 1965-03-30

Family

ID=23070811

Family Applications (1)

Application Number Title Priority Date Filing Date
US279898A Expired - Lifetime US3175352A (en) 1963-05-13 1963-05-13 Bell alarm damping device

Country Status (3)

Country Link
US (1) US3175352A (de)
CH (2) CH599164A4 (de)
GB (1) GB1055654A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754444A (en) * 1986-11-26 1988-06-28 Rhythm Watch Co., Ltd. Alarm clock

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US30800A (en) * 1860-12-04 Striking mechanism for gongs
US370038A (en) * 1887-09-20 Striking-clock for timing watches
US2851850A (en) * 1955-09-16 1958-09-16 Arno W Fowler Electric chime and striking clock

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US30800A (en) * 1860-12-04 Striking mechanism for gongs
US370038A (en) * 1887-09-20 Striking-clock for timing watches
US2851850A (en) * 1955-09-16 1958-09-16 Arno W Fowler Electric chime and striking clock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754444A (en) * 1986-11-26 1988-06-28 Rhythm Watch Co., Ltd. Alarm clock

Also Published As

Publication number Publication date
GB1055654A (en) 1967-01-18
CH599164A4 (de) 1967-05-13
CH443155A (de) 1967-05-13

Similar Documents

Publication Publication Date Title
EP1879086B1 (de) Uhr
JP5972579B2 (ja) ミュージカル・ボックス用のピン・バレルと、このピン・バレルを有するミュージカル・ボックス
JP6827064B2 (ja) 計時器打撃機構
US3175352A (en) Bell alarm damping device
US2150633A (en) Timing device and escapement therefor
US2920438A (en) Alarm control mechanism
US3407402A (en) Clock alarm mechanism having impulsed striker apparatus
JPH08123423A (ja) 発音装置
US2570740A (en) Ticking toy watch
US2068629A (en) Musical signaling apparatus
JP2024014749A (ja) フレキシブルなガイドを設けられた打刻機構を備えた時計ムーブメント
US3440814A (en) Electric clock alarm system
US11774910B2 (en) Resonant member for a striking mechanism of a watch or of a music box
US3411368A (en) Magnetic driving device
US3251182A (en) Variable loudness alarm mechanism
US2020388A (en) Alarm clock
US2528247A (en) Slow-beat emergency magnetically vibrated alarm
US2612075A (en) Film pulldown method
US2375294A (en) Metronome
JP2024014748A (ja) 可撓性ガイドを具備する時打ち機構を備える時計のムーブメント
US2099929A (en) Electromagnetic bell
US3299762A (en) Music box
US3315249A (en) Programmed signalling system
US2151355A (en) Electromagnetic motor
US3172100A (en) Ringer clapper assembly