Patent US3603074A successfully refreshed from Google Patents.
US3603074A
Expired / Lapsed
US
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Clockwork-time switch
Assignee: MESSRS Gebr JUNGHANS GmbH
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Filing: 1969-11-26
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Granted: 1971-09-07
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Expires: 1989-11-26
Abstract
Abstract A clockwork mechanism is provided having a return locking spring disposed between a baseplate and an adjustment wheel of the device. The adjustment wheel is formed with a hub having a longitudinal slot so that the hub may be compressed and fit within a hole formed in the baseplate. The indicating hand of the clock may be formed with projections which fit into the slot to prevent the hub from being compressed and removed from the hole. An alarm release spring is mounted within the mechanism and operates in a cantilever manner to actuate and shut off the alarm.
Inventors
- 👤 Wolfgang Ganter
- 👤 Heinz Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:02
CPC Classifications
G; G04; G04C; G04C23/00; G04C23/14; G04C23/16
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
240 words
A clockwork mechanism having a baseplate and a front plate carrying a dial and having time and release gearing disposed between the two plates wherein: said baseplate is formed to define a hole for the insertion of a plurality of concentric shafts for mounting indicating hands; a recess is formed on the rear side of said baseplate coaxial to the hole formed in said baseplate; a return locking torsion spring is disposed within said recess; said spring being configured as an annular disk having at least one locking arm having a locking edge; said locking arm protruding tangentially from said disk and engaging a locking crown cogging formed on said adjustment wheel; said adjusting wheel being formed with a barrel hub for rotatable mounting within the hole formed in said baseplate; at least one indicator hand being mounted on said barrel hub; said adjusting wheel being rotatably and slidingly held against the annular surface of the baseplate adjacent to and defining said recess; an hour wheel being disposed behind said adjustment wheel and resiliently acting upon said adjustment wheel; said hour wheel beiNg formed with a hub disposed within an axial bore formed in said barrel hub of said adjustment wheel; a minute shaft being disposed within an axial bore formed within said hub of said hour wheel; and said hour wheel and said adjustment wheel being formed with engaging cams and slots for providing a torsional driving connection therebetween.
Claim 2
Dependent Claim
240 words
A clockwork mechanism having a baseplate and a front plate carrying a dial and having time and release gearing disposed between the two plates wherein: said baseplate is formed to define a hole for the insertion of a plurality of concentric shafts for mounting indicating hands; a recess is formed on the rear side of said baseplate coaxial to the hole formed in said baseplate; a return locking torsion spring is disposed within said recess; said spring being configured as an annular disk having at least one locking arm having a locking edge; said locking arm protruding tangentially from said disk and engaging a locking crown cogging formed on said adjustment wheel; said adjusting wheel being formed with a barrel hub for rotatable mounting within the hole formed in said baseplate; at least one indicator hand being mounted on said barrel hub; said adjusting wheel being rotatably and slidingly held against the annular surface of the baseplate adjacent to and defining said recess; an hour wheel being disposed behind said adjustment wheel and resiliently acting upon said adjustment wheel; said hour wheel beiNg formed with a hub disposed within an axial bore formed in said barrel hub of said adjustment wheel; a minute shaft being disposed within an axial bore formed within said hub of said hour wheel; and said hour wheel and said adjustment wheel being formed with engaging cams and slots for providing a torsional driving connection therebetween.
Claim 3
Dependent Claim
15 words
A clockwork mechanism according to claim 1 wherein said hour wheel comprises a plastic material.
Claim 4
Dependent Claim
15 words
A clockwork mechanism according to claim 1 wherein said baseplate consists of a plastic material.
Claim 5
Dependent Claim
43 words
A clockwork mechanism according to claim 3 wherein attaching pegs are formed on the rear of said baseplate for mounting a contact member for connection with an electrical source; and said contact member being disposed in operable relationship with said alarm releasing spring.
Claim 6
Dependent Claim
156 words
A clockwork mechanism according to claim 1 wherein: said barrel hub of said adjusting wheel is formed with an axial slot; the surfaces defining said axial slot being resilient; lateral projections being formed on the outer surface of said barrel hub and extending in a radial plane; said lateral projections having a diameter less than the diameter of the hole formed in said baseplate when said projections are resiliently pressed toward one another; said projections being expandable to axially engage said barrel hub within the hole of said baseplate upon releasing the pressure on said projections; said indicating hand mounted on said barrel hub being formed with inwardly directed projections for filling in said slot formed in said hub whereby said hub is locked within the hole of said baseplate and may not be released by pressing said projections toward one another until said inwardly directed projections of said indicating hand are removed from said slot.
Claim 7
Dependent Claim
16 words
A clockwork mechanism according to claim 5 wherein said adjustment wheel consists of a plastic material.
Claim 8
Dependent Claim
85 words
A clockwork mechanism according to claim 1 having an alarm-releasing spring: said releasing spring urging said hour wheel against said adjustment wheel; said release spring generally comprising a straight line leaf spring having one end affixed to the said front plate whereby said spring is cantilevered at the other end thereof; said other cantilevered end of said releasing spring being operably connected with an alarm control means; and said spring being formed with a generally centrally located aperture for the insertion of a minute shaft.
Claim 9
Dependent Claim
28 words
A clockwork mechanism according to claim 7 wherein said alarm releasing spring is disposed at the one affixed end thereof about an upper bearing of a balance wheel.
Claim 10
Dependent Claim
35 words
A clockwork mechanism according to claim 7 wherein said alarm releasing spring at the other cantilevered end thereof is operably connected with a spline shaft of a time interrupter gear for an electric signal circuit.
Claim 11
Dependent Claim
26 words
A clockwork mechanism according to claim 7 wherein said alarm releasing spring at the other cantilevered end thereof is operatively connected with an electrical switching contact.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |