US460751A - Wilhelm madel - Google Patents
Wilhelm madel Download PDFInfo
- Publication number
- US460751A US460751A US460751DA US460751A US 460751 A US460751 A US 460751A US 460751D A US460751D A US 460751DA US 460751 A US460751 A US 460751A
- Authority
- US
- United States
- Prior art keywords
- minute
- wheel
- madel
- ratch
- hour
- 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
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Classifications
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- 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
- G04B23/02—Alarm clocks
- G04B23/04—Alarm clocks with coarse and fine setting of the preselected times
Definitions
- VILl-IELM MADEL OF NIEUKERK
- GERMANY VILl-IELM MADEL, OF NIEUKERK, GERMANY.
- the object of this invention is an alarm for clocks which allows of being adjusted to a certain minute.
- the new device is illustrated in the annexed drawings, in which- Figure l isV a vertical section of the clock. Figs. 2 and 3 are detail views; and Fig. et is the front view of the Work.
- the device is essentially disposed as follows: Aweight-gearingA is used in the known inannerto impart oscillating movement to the clapperaof thealarm-gong.
- the clapper-shaft b is provided with two pins c d, which bear by the pull of the alarm-weight against two corresponding arms e f, one of which c is revolubly and displaceably coupled with the minute ratch-disk e2, while the other f is in the same relation to the hour ratch-disk f2.
- Said two arms e f are inclosed by a fork 7o, which prevents them from participating in the revolution of the two disks 2f?
- the innermost tube g of the hand device carries at the outer end the minute-hand g', and at the inner extremity the minute-wheel g2. It is, moreover, surrounded by a tube, the outer end of which is provided with the adjustinghand e3 for the minutes, while it carries at vthe inner side the minute rateh-disk e2.
- a third tube shifted on carries the hour-hand 7L and the l1oi1r-wheel 7L', and is surrounded with another tube provided with the adj listinghand 'L' for the hours, and a disk g2, which is pressed by a suitably-placed spring f against the hour-wheel 7L', and sinks with a rest or cavity over a corresponding' nose provided at the front surface of the hour-wheel 71,', as soon as the latter has assumed a certain position determined by the direction of the hour alarmhand t'.
- the arm f connected to the hour ratch-disk f2 then undergoes displacement and frees the corresponding pin (Z, which takes place once in twelve hours.
Description
(No Model.)
W. MADBL.
ALARM CLOCK.
110.460,751. Patented 0013.6,1891- UNITED STATES PATENT OFFICE.
VILl-IELM MADEL, OF NIEUKERK, GERMANY.
ALARM-CLOCK.
SPECIFICATION forming part of Letters Patent No. 460,751, dated October 6, 1891.
Application filed January 16, 1891. Serial No. 378,068. (No model.) Patented in Germany February 8, 1890, No. 52,769.
To all whom it may concern.-
Beit known that l, NVILHELM MADEL, a subject of the Emperor of Germany, residing at Nieukerk, in the Empire of Germany, have invented a new and useful Minute-Alarm for Clocks, (for which I have obtained a patent in Germany, Serial No. 52,76),bearing date February 8, 1890,) of which the following is a speciiication.
The object of this invention is an alarm for clocks which allows of being adjusted to a certain minute. The new device is illustrated in the annexed drawings, in which- Figure l isV a vertical section of the clock. Figs. 2 and 3 are detail views; and Fig. et is the front view of the Work.
The device is essentially disposed as follows: Aweight-gearingA is used in the known inannerto impart oscillating movement to the clapperaof thealarm-gong. The clapper-shaft b is provided with two pins c d, which bear by the pull of the alarm-weight against two corresponding arms e f, one of which c is revolubly and displaceably coupled with the minute ratch-disk e2, while the other f is in the same relation to the hour ratch-disk f2. Said two arms e f are inclosed by a fork 7o, which prevents them from participating in the revolution of the two disks 2f? The innermost tube g of the hand device carries at the outer end the minute-hand g', and at the inner extremity the minute-wheel g2. It is, moreover, surrounded by a tube, the outer end of which is provided with the adjustinghand e3 for the minutes, while it carries at vthe inner side the minute rateh-disk e2. The
latter has a cavity or rest which corresponds to a nose on the contiguous surface of the minute-wheel g2. By means of the spring e', Fig. 2, the minute ratch-wheel e2 is pressed against the minute-wheel c2, whereby said ratch-wheel e2 falls with its rest over the nose of the minute-wheel g2, as soon as the latter occupies the corresponding position determined by the minute alarm-hand e3. Thereby the arm e, connected with the minute ratch-disk c2 recedes from respective pin c, which therefore occurs once an hour. A third tube shifted on carries the hour-hand 7L and the l1oi1r-wheel 7L', and is surrounded with another tube provided with the adj listinghand 'L' for the hours, and a disk g2, which is pressed by a suitably-placed spring f against the hour-wheel 7L', and sinks with a rest or cavity over a corresponding' nose provided at the front surface of the hour-wheel 71,', as soon as the latter has assumed a certain position determined by the direction of the hour alarmhand t'. The arm f connected to the hour ratch-disk f2 then undergoes displacement and frees the corresponding pin (Z, which takes place once in twelve hours. If, subsequently, also the arm c connected to the ininute ratch-disk c2 is displaced in the aforedescribed manner when the determined minute has arrived, also the other pin c is released and the dapper-shaft l) is allowed to swing by the pull of the weight.
lVhat l claiin, and desire to secure by Letters Patent of the United States, is-
In an alarm-work for clocks, the combina tion of the arms cf, bearing against the corresponding` pins c d of the dapper-shaft l), with the minute ratch-wheel e2, the minutewheel g2, the hour raton-disk f2, and the hourwheel 7L', as described, and for the purpose specified.
VILHELM MADEL.
Vitnesses:
Ev-ANs BLAKE, HENRY E. BLAKE
Publications (1)
Publication Number | Publication Date |
---|---|
US460751A true US460751A (en) | 1891-10-06 |
Family
ID=2529625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US460751D Expired - Lifetime US460751A (en) | Wilhelm madel |
Country Status (1)
Country | Link |
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US (1) | US460751A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3738098A (en) * | 1970-01-30 | 1973-06-12 | Kieninger & Obergfell | Alarm clock with hour and minute presetting |
US3762151A (en) * | 1971-11-18 | 1973-10-02 | Seiko Koki Kk | Time-detecting system for a digital interval timer |
US3875737A (en) * | 1973-08-27 | 1975-04-08 | Gen Electric | Alarm clock timer |
-
0
- US US460751D patent/US460751A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3738098A (en) * | 1970-01-30 | 1973-06-12 | Kieninger & Obergfell | Alarm clock with hour and minute presetting |
US3762151A (en) * | 1971-11-18 | 1973-10-02 | Seiko Koki Kk | Time-detecting system for a digital interval timer |
US3875737A (en) * | 1973-08-27 | 1975-04-08 | Gen Electric | Alarm clock timer |
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