US3520126A - Striker movement for electrically driven clock - Google Patents

Striker movement for electrically driven clock Download PDF

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Publication number
US3520126A
US3520126A US767650A US3520126DA US3520126A US 3520126 A US3520126 A US 3520126A US 767650 A US767650 A US 767650A US 3520126D A US3520126D A US 3520126DA US 3520126 A US3520126 A US 3520126A
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US
United States
Prior art keywords
rack
hour
pawl
minute
shaft
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
US767650A
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English (en)
Inventor
Walter F Kolodziej
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 Time Corp
Original Assignee
General Time Corp
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 Time Corp filed Critical General Time Corp
Application granted granted Critical
Publication of US3520126A publication Critical patent/US3520126A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/04—Indicating the time of the day
    • G04C21/06—Indicating the time of the day by striking mechanism
    • G04C21/08—Indicating the time of the day by striking mechanism with snail

Definitions

  • FIG; 3 is an exploded and somewhat distorted perspective showing the elements of the striking mechanism.
  • FIG. 5 shows the parts approximately one minute before the hour with the pawl released for engagement with the rack and just prior to driving engagement of the rack.
  • FIG. 6 shows the parts on the hour with striking about to begin
  • the next occurrence is the positioning of the rack member 60 for the single stroke to be sounded at the half hour.
  • the cam follower surface of the rack member rides upwardly on the surface 102 of the half hour cam and onto the positioning lobe 101. This places the first notch of the counting rack in receiving position under the striker pawl 47.
  • the edge of the cam follower surface 82 on the cam follower arm 81 rides downwardly upon the sloping surface 111. This retracts the pawl release member 85, permitting the pawl to drop into the single stroke notch of the rack member. All that remains to strike the half hour is for the drive pinion 66 to be engaged.
  • a striking clock having a minute shaft and an hour shaft
  • the combination comprising a constantly running laterally movable drive shaft having a pinion secured thereto, a swingable rack arm having a counting rack and a drive rack concentrically arranged thereon, means for biasing the rack arm in one direction, a biased pawl cooperating with the counting rack and having a striker, a snail on the hour shaft in the path of biased movement of the rack arm for establishing a starting position of the counting rack with respect to the pawl depending upon the hour, the drive pinion being arranged opposite the drive rack for engagement therewith to produce swinging movement of the counting rack with respect to the pawl for counting out the strokes of the striker, a two-lobed minute cam on said minute shaft, means including a minute cam arm biased against the minute cam and having a pawl release member in the path'of biased movement of the pawl for normally holding the pawl out of engagement with respect to the counting rack but for releasing the pawl just prior to the hour and half hour

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Transmission Devices (AREA)
US767650A 1968-10-15 1968-10-15 Striker movement for electrically driven clock Expired - Lifetime US3520126A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76765068A 1968-10-15 1968-10-15

Publications (1)

Publication Number Publication Date
US3520126A true US3520126A (en) 1970-07-14

Family

ID=25080140

Family Applications (1)

Application Number Title Priority Date Filing Date
US767650A Expired - Lifetime US3520126A (en) 1968-10-15 1968-10-15 Striker movement for electrically driven clock

Country Status (2)

Country Link
US (1) US3520126A (enrdf_load_stackoverflow)
JP (1) JPS4825947B1 (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3702529A (en) * 1970-05-11 1972-11-14 Horlogerie La Vedette Soc Fab Striking mechanisms for clocks
US4036004A (en) * 1976-03-29 1977-07-19 Spartus Corporation Clock with striking mechanism
US4036005A (en) * 1976-03-29 1977-07-19 Spartus Corporation Clock with hour and quarter hour striking mechanism
US4358838A (en) * 1979-08-22 1982-11-09 Rhythm Watch Company Limited Electronic timepiece with a time striking device
US5959527A (en) * 1997-05-22 1999-09-28 Woodstock Percussion, Inc. Time triggered chime
US6799116B2 (en) 2000-12-15 2004-09-28 Trimble Navigation Limited GPS correction methods, apparatus and signals
US20050001389A1 (en) * 2003-07-02 2005-01-06 Chih-Chin Lin Horizontal balance control system of motor vehicle
US20070147183A1 (en) * 2005-12-14 2007-06-28 Montres Breguet Sa Timepiece including a striking mechanism with a single click
US20080192585A1 (en) * 2005-03-31 2008-08-14 Yves Corthesy Timepiece Comprising a Minute Repeater Mechanism

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61187503U (enrdf_load_stackoverflow) * 1985-05-15 1986-11-22

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2851850A (en) * 1955-09-16 1958-09-16 Arno W Fowler Electric chime and striking clock

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2851850A (en) * 1955-09-16 1958-09-16 Arno W Fowler Electric chime and striking clock

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3702529A (en) * 1970-05-11 1972-11-14 Horlogerie La Vedette Soc Fab Striking mechanisms for clocks
US4036004A (en) * 1976-03-29 1977-07-19 Spartus Corporation Clock with striking mechanism
US4036005A (en) * 1976-03-29 1977-07-19 Spartus Corporation Clock with hour and quarter hour striking mechanism
US4358838A (en) * 1979-08-22 1982-11-09 Rhythm Watch Company Limited Electronic timepiece with a time striking device
US5959527A (en) * 1997-05-22 1999-09-28 Woodstock Percussion, Inc. Time triggered chime
US6799116B2 (en) 2000-12-15 2004-09-28 Trimble Navigation Limited GPS correction methods, apparatus and signals
US6862526B2 (en) 2000-12-15 2005-03-01 Trimble Navigation Limited GPS correction methods, apparatus and signals
US20050001389A1 (en) * 2003-07-02 2005-01-06 Chih-Chin Lin Horizontal balance control system of motor vehicle
US20080192585A1 (en) * 2005-03-31 2008-08-14 Yves Corthesy Timepiece Comprising a Minute Repeater Mechanism
US7773463B2 (en) * 2005-03-31 2010-08-10 Lvmh Swiss Manufactures Sa Timepiece comprising a minute repeater mechanism
US20070147183A1 (en) * 2005-12-14 2007-06-28 Montres Breguet Sa Timepiece including a striking mechanism with a single click
US7330403B2 (en) * 2005-12-14 2008-02-12 Montres Breguet S.A. Timepiece including a striking mechanism with a single click

Also Published As

Publication number Publication date
JPS4825947B1 (enrdf_load_stackoverflow) 1973-08-02

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