US796399A - Alarm-clock. - Google Patents

Alarm-clock. Download PDF

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Publication number
US796399A
US796399A US17519703A US1903175197A US796399A US 796399 A US796399 A US 796399A US 17519703 A US17519703 A US 17519703A US 1903175197 A US1903175197 A US 1903175197A US 796399 A US796399 A US 796399A
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Prior art keywords
alarm
clock
lever
contact
engagement
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US17519703A
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Joseph E Blithe
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    • 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
    • G04C21/20—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by closing a contact to ring an electromechanical alarm
    • G04C21/22—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by closing a contact to ring an electromechanical alarm put into action by the arbor of a mechanical alarm work

Definitions

  • My invention relates to alarm-clocks, and has for its object the production of a new and useful device of this character which is interposed in an electric circuit whereby an electric alarm may be sounded at any predetermined time, and also to produce a device which is cheap in construction, eflicient, and ornamental.
  • FIG. 1 is a front elevation of an electric alarm-clock-which is constructed in accordance with my invention.
  • Fig. 2 is a rear elevation thereof.
  • Fig. 3 is a diagrammatic View of the electric circuit, illustrating the location of thediiferent elements therein.
  • 1 designates a case or cabinet of any artistic design and having its upper portion provided with a circular aperture of a diameter sufficiently large to receive an ordinary-size alarm-clock in order that its face may be exposed to view.
  • a recess 2 Directly below and communicating with the rear portion of the circular aperture is a recess 2, and below this recess is another recess 3, opening in the rear of the case.
  • An electric battery 4 of any improved construction is mounted in the recess 3, and secured to one of its poles is a conductor 5, having connection with a contact 6, located in the recess 2.
  • the other pole of the battery has secured thereto a conductor 7, which is connected to one of the binding-posts of an electrically-operated hell 8.
  • the bells magnets and armatures are mounted in the recess 2, while its gong is located on the front of the casing below the clock.
  • the other binding-post of the bell has secured thereto one end of a conductor 9, having its opposite end attached to a binding-post 10, which projects beyond the front of the casing and upon which is secured the gong of the bell.
  • a switchlever 11 is fulcrumed upon the post 10 and is adapted to be swung into and out of engagement with an electric contact 12, which is electrically connected to the clock means of a conductor 13.
  • an inverted lever 14 Mounted upon the spring-arbor of the alarm mechanism of the clock is an inverted lever 14, the same being adapted to have the free end thereof swung into engagement with the contact 6 by the alarm-spring to close the electric circuit to ring the bell.
  • the lever 14 has secured to its lower free end one end of a chain or analogous device 15, which is passed through a perforation 16, leading from the recess 2 to the side of the casing to permit the free end of the chain 15 to hang by the side of the casing. end provided with a ball or other device 17 by means of which the chain may be grasped to withdraw the lever 14 from engagement with the contact 6.
  • the withdrawal of the lever from engagement with the contact 6 winds the alarm-spring sufliciently to throw the lever into engagement with the contact at any desired time.
  • the operation of the device may be explained in the following manner:
  • the alarm mechanism of the clock is set to the hour during which it is desired to have the alarm sounded.
  • the chain l5 is pulled to withdraw the lever 14 from engagement with the contact 6 and wind the alarm spring, and then the switch-lever 11 is swung into engagement with the contact 12, thereby completing the circuit, with the exception of the breach occurring therein between the lever 14 and contact 9.
  • the alarmspring is released to swing the lever into engagement with the contact 6 to close the circuit, consequently causing the alarm to sound.
  • the alarm will continue to sound until detected through virtue ofthe tension brought to bear upon the lever 14 by the alarm-spring, which keeps the lever in engagement with the contact 6.
  • the switch-lever 11 may be swung out of engagement with the contact 12 to break the circuit to cause the alarm to cease.
  • a device of the character described comprising a casing having the opening at the top containing a clock having a winding-lever normally in circuit with a bell, the opening at the center containing a magnet and contact and the opening at the bottom containing the
  • the chain has its free buttery, connection Within the casing from the battery to the contact, and from the shadery through said clock to said Winding-lever, and means extending Without the clock to operate said Winding-lever and thus disconnect the same from the contact, substantially as specified.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Alarm Devices (AREA)

Description

.No. 796,399. PATENTED AUG. 1, 1905.
- J. B. BLITHE.
ALARM CLOCK.
APPLICATION FILED SEPT. 30, 1903.
2 SHIRTS-SHEET 1. x
IHIIIIIIIII'IITA v Srwauloz h m nes I I ANDREW a, mum no, PIIDIO-LITMOGRAPHERS. wAsmNcwu, n. c.
No. 796,399. PA'TENTED AUG. 1, 1905. 1. E. BLITHE. A
ALARM CLOCK. APPLICATION FILED SEPT. 30,1903- 2 SHEETS-SHEET 2.
ANDREW u, mum-4 co. wowumocmwzns v/lsmustmo c.
v fitter/nag UNITED STATES PATENT OFFICE.
ALARM-CLOCK- Specification of Letters Patent.
Patented Aug. 1, 1905.
Application filed $eptember 30, 1903. Serial No. 175,197. I
To all whmn it may concern:
Be it known that I, JOSEPH E. BLITHE, a citizen of the United States, residing at Upland,
in the county of Delaware and State of Pennsylvania, have invented new and useful Improvements in Alarm-Clocks, of which the following is a specification.
My invention relates to alarm-clocks, and has for its object the production of a new and useful device of this character which is interposed in an electric circuit whereby an electric alarm may be sounded at any predetermined time, and also to produce a device which is cheap in construction, eflicient, and ornamental.
The invention consists of the construction, combination, and. arrangement of parts hereinafter fully described,claimed, and illustrated in theaccompanying drawings, which disclose the preferred form of my invention,- and' in which Figure 1 is a front elevation of an electric alarm-clock-which is constructed in accordance with my invention. Fig. 2 is a rear elevation thereof. Fig. 3 is a diagrammatic View of the electric circuit, illustrating the location of thediiferent elements therein.
Referring to the drawings by referencenumerals, 1 designates a case or cabinet of any artistic design and having its upper portion provided with a circular aperture of a diameter sufficiently large to receive an ordinary-size alarm-clock in order that its face may be exposed to view. Directly below and communicating with the rear portion of the circular aperture is a recess 2, and below this recess is another recess 3, opening in the rear of the case.
An electric battery 4 of any improved construction is mounted in the recess 3, and secured to one of its poles is a conductor 5, having connection with a contact 6, located in the recess 2. The other pole of the battery has secured thereto a conductor 7, which is connected to one of the binding-posts of an electrically-operated hell 8. r The bells magnets and armatures are mounted in the recess 2, while its gong is located on the front of the casing below the clock. The other binding-post of the bell has secured thereto one end of a conductor 9, having its opposite end attached to a binding-post 10, which projects beyond the front of the casing and upon which is secured the gong of the bell. A switchlever 11 is fulcrumed upon the post 10 and is adapted to be swung into and out of engagement with an electric contact 12, which is electrically connected to the clock means of a conductor 13.
Mounted upon the spring-arbor of the alarm mechanism of the clock is an inverted lever 14, the same being adapted to have the free end thereof swung into engagement with the contact 6 by the alarm-spring to close the electric circuit to ring the bell. The lever 14 has secured to its lower free end one end of a chain or analogous device 15, which is passed through a perforation 16, leading from the recess 2 to the side of the casing to permit the free end of the chain 15 to hang by the side of the casing. end provided with a ball or other device 17 by means of which the chain may be grasped to withdraw the lever 14 from engagement with the contact 6. The withdrawal of the lever from engagement with the contact 6 winds the alarm-spring sufliciently to throw the lever into engagement with the contact at any desired time.
The operation of the device may be explained in the following manner: The alarm mechanism of the clock is set to the hour during which it is desired to have the alarm sounded. Then the chain l5is pulled to withdraw the lever 14 from engagement with the contact 6 and wind the alarm spring, and then the switch-lever 11 is swung into engagement with the contact 12, thereby completing the circuit, with the exception of the breach occurring therein between the lever 14 and contact 9. When the hour at which the alarm mechanism is set has arrived, the alarmspring is released to swing the lever into engagement with the contact 6 to close the circuit, consequently causing the alarm to sound.
The alarm will continue to sound until detected through virtue ofthe tension brought to bear upon the lever 14 by the alarm-spring, which keeps the lever in engagement with the contact 6. The switch-lever 11 may be swung out of engagement with the contact 12 to break the circuit to cause the alarm to cease.
Having thus fully described the invention, what is claimed as new is A device of the character described comprising a casing having the opening at the top containing a clock having a winding-lever normally in circuit with a bell, the opening at the center containing a magnet and contact and the opening at the bottom containing the The chain has its free buttery, connection Within the casing from the battery to the contact, and from the hattery through said clock to said Winding-lever, and means extending Without the clock to operate said Winding-lever and thus disconnect the same from the contact, substantially as specified.
In testimony whereof I aflix my signature in presence of two Witnesses.
JOSEPH E. BLITHE.
Witnesses EPHRAIM DRANSFIELD, WILLIAM GLAT'rs.
US17519703A 1903-09-30 1903-09-30 Alarm-clock. Expired - Lifetime US796399A (en)

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US17519703A US796399A (en) 1903-09-30 1903-09-30 Alarm-clock.

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