US698985A - Electric clock. - Google Patents

Electric clock. Download PDF

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Publication number
US698985A
US698985A US1901068925A US698985A US 698985 A US698985 A US 698985A US 1901068925 A US1901068925 A US 1901068925A US 698985 A US698985 A US 698985A
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United States
Prior art keywords
arm
pendulum
crutch
weighted
fork
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Emil Meyer
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JOHN M A MILLHAGEN
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JOHN M A MILLHAGEN
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Priority to US1901068925 priority Critical patent/US698985A/en
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    • GPHYSICS
    • G04HOROLOGY
    • G04CELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/02Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a pendulum
    • G04C3/021Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a pendulum using mechanical coupling
    • G04C3/022Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a pendulum using mechanical coupling with constant impulses

Description

- Patented Apr. 29", I902." E. MEYER.
ELECTRIC CLOCK.
( Applicab ion filed July 19, 1901.1
2 Sheets-Sheet I."
(No Model.)
W m L M a m w /W zy B N0. 698,985. Patented Apr. 29, I902.
E. MEYER.
ELECTRIC CLOCK.
(Application filed July 19, 1901.- (No Model.) 2 SheetsSheet 2.
fig-5.
lllllllllflllllll I WITNESSES. INVENTOH ATTORNEYS TN-E NORRIS PiTzas 60., Pnmaumu, WASNINGTON, n. C
. ilwmnn Srnrns PATENT Qrrrcn.
EMIL MEYER, OF JERSEY CITY, NEW JERSEY; ASSIGNOR'OF ONE-HALF TO JOHN M. A. MILLI'IAGEN, OF JERSEY CITY, NEIV JERSEY.
ELECTRICCLOCK.
SPIEGIFIGATION forming part of Letters Patent No. 698,985, dated April 29, 1902.
Application filed July 19, 1901. Serial No. 68,925. (No model.)
To all whom it may concern:
Be it known that I, EMIL MEYER, a subject of the Emperor of Germany, residing in J orsey City, in the county of Hudson and State of New Jersey, have invented a new and Im-.
provedElectric Clock, of which the following is a full, clear, and exact description.
The invention relates toclocks driven by electricity; and its objectis to provide a new and improved electric clock which is simple and durablein construction and very accurate in its workings.
The invention consists ofnovel features and parts and combinations of the same, as will be fully described hereinafter and then point ed out in the claims.
A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.
Figure 1 is a front elevation of the improvement with parts broken out. Fig. 2 is an enlarged front elevation of the driving mech-v anism, parts being in a different position from the one shown in Fig. 1; and Fig. 3 is a plan viewof the same. l.
The crutch or fork A of the pendulum B is pivoted at A on the clock-frame and is providedwith side or cross armsA A ofswhich the arm A periodically receives a blow or is struck by a weight 0, held adjustably on the arm (3, fulcrumed at. C on the clock-frame.
An angular arm or extension 0 of the arm 0 is adapted to be engaged by a pin D, held on a lever D, fulcrumed at D on the clockframe and pivotally connected by a link E with the armature-lever F of an electromagnet F, of any approved construction. The
electromagnet F is in a circuit G, containingv a circuit-closer -I-I, controlled by the arm A of the crutch, and this circuit-closer consists, essentially, of spring contact-plates H, connected with-a circuit-wire G and adapted to be engaged by-a contact-point H projecting upwardly from an arm H fulcrumed at H" on the clock-frame. The free end of the arm H is engaged by a pin A on the side of the cross-arm A so that when the pendulum, and with it the crutch A, swings from the left to the right the pin A impartsan upward swinging motion to the arm H to move the contact-point H in engagement with the contact-plates H to close the circuit, it being understood that the point I-I, arm H and pin A are electrically connected with the wire G of the circuit, as will be readily understood by reference to Figs. 1 and 2. Now when the circuit is closed the armature-lever F is attracted, and in swinging downward the latter normally in the position shown in Fig. 2, the arm I resting against the stop-pin 1 On the arm I is held an angular extension 1 adapted to be engaged by an extension A on the upper end of the crutch A, so that when the pendulum and the crutch A swing '75 from the right to the left the said extension A moves in contact with the extension-arm s I to swing the arm I from the left to the right against the tension of thespring I and to move the lug I from under the free end 0 of the weighted arm 0. Thus when the pendulum arrives in its I left-hand position the weighted arm 0 is released, and it consequentlyiswings downward by its own weight,
and the weight 0 imparts a blow to the arm A so as to give an impulse to the crutch A, and consequently to the pendulum B, to swing the same from the left'to the right. As soon as the crutch is on the oscillation from the left to the right the arm A moves out ofengagement with the weight 0, as the arm 0 thereof now rests on the stop-pin 0 When the pendulum B nears its right-hand position, then the pin A has moved the arm H upward to bring the contact-point H in 5 sition and in engagement with the lug I to I00 hold the arm 0 temporarily at rest.
It is understood that when the pendulum When the weighted arm O swings into 65 and the crutch A are moving from the left to the right the extension A moves out of engagement with the extension-arm I to allow the arm I to return to its normal position against the stop I by the action of the spring 1 \Vhen the pendulum swings from the right to the left, then the contact-point H finally moves out of contact with the plate I-l', so that the circuit is broken and the armature-lever F swings back into an uppermost position against the stop F as shown in Fig. 1. This upward movement of the armaturelever F causes the lever D to swing back to its backward position, the pin D being a distance below the angular arm 0 to allow a free downward swinging of the arm 0 as soon as the latter is released by the arm Ibeing caused to swing to the right upon the extension A moving the extension-arm 1 as previously explained.
In order to insure a quick upward swinging of the arm 0 by the leverD and its pin D acting on the angular arm G I provide a cushion F of rubber or other elastic material and located under the armature-lever F, so that when the latter is attracted by the armature on the closing of the circuit,as above described, then the impact of the lever F on the bumper F causes a jerk to the lever D and the angular arm 0* to suddenly swing the arm O back into an uppermost resting position.
The movement given to the pendulum B by the successive blows imparted to the arm A by the weight 0 may be transmitted to the clock mechanism proper by any suitable mechanism. For instance, as shown, the pendulum B engages a lug J on a lever J, fulcrumed at J on the clock-casing, said lever J carrying a spring pull-pawl J adapted to turn a ratchet-wheel K, forming part of the clock-gearing.
The clock-gearing is not shown or described in detail, as it is evident that an ordinary clock-gearing may be employed.
Having thus fully described my invention, 1 claim as new and desire to secure by Letters Patent--- 1. An electric clock having a pendulum, a pendulum-crutch provided with cross-arms, a weighted arm for striking one of the crossarms to give an impulse to the pendulum in one direction, and an electrical device for raising the weighted arm, said electrical device comprising a circuit, an electromagnet in said circuit, a circuit-closer for said circuit andcontrolled by the other arm of the pendulum-crutch, and means connected with the armature-lever of the said electromagnet, for imparting an upward movement to said weighted arm when the pendulum crutch closes the circuit, as set forth.
2. An electric clock having a weighted arm for imparting movement to the pendulum in one direction, an electrical device controlled by the pendulum and arranged to return the weighted arm to an inactive position, and a retaining device controlled from the pendulum, for temporarily holding the weighted arm in a raised position, said retaining device comprising a spring-pressed arm having a lug adapted to be engaged by the free end of said weighted arm, and means on said crutchfor periodically imparting a swinging motion to said spring-pressed arm, to move the lug out of engagement with said weighted arm, as set forth.
3. In an electric clock,the combination with a pendulum crutch or fork provided with oppositely arranged arms, of a pivoted and weighted arm adapted to strike one of the arms of the pendulum crutch or fork, a locking device for holding the weighted arm raised, means controlled by the crutch or fork for releasing the locking device to allow the weighted arm to fall, an electromagnet, means operated by the armature of the magnet for swinging the weighted arm upward into engagement with the locking device, and a circuit-closer controlled by the other arm of the pendulum crutch or fork, as set forth.
4. In an electric clock, the combination with a pendulum crutch or fork provided with oppositely arranged arms, of a pivoted and weighted arm adapted to strike one arm of the pendulum crutch or fork, an electromagnet, a circuit-closer controlled by the other arm of the pendulum-crutch, a pivoted lever having one end connected with the armature of the electromagnet and its other end operatively connected with the weighted arm, a locking device for holding the weighted arm raised, and means for operating the locking device to release the weighted arm, as set forth.
5. In an electric clock, the combination with a pendulum crutch or fork provided with oppositelyarranged arms, of a pivoted and weighted arm adapted to strike one arm of the pendulum crutch or fork and provided withan angular extension, an electromagnet, a circuit-closer controlled by the other arm of the pendulum crutch or fork, a pivoted lever, having one end connected with the armature of the magnet and its other end ongaging the extension of the weighted arm, a pivoted an d spring-pressed arm provided with a lug with which the weighted arm engages when raised, and means for swinging the spring-pressed arm against the action of its spring from the pendulum crutch or fork, as set forth.
6. In an electric clock, the combination with a pendulum crutch or fork provided with oppositely-arranged arms and with an extension at its upper end, of a pivoted and weighted lever adapted to strike one of the arms of the pendulum crutch or fork and provided with an angular extension, an electromagnet, a circuit-closer controlled by the other arm of the pendulum crutch or fork, a pivoted lever having one end engaging the angular extension of the weighted lever, a link connecting the other end of the lever with the armature of the magnet, and a pivoted and springpressed arm provided with a lug with which the weighted arm engages when raised, and with an angular extension extending into the path of the extension of the pendulum crutch or fork, asset forth.
7. In an electric clock, the combination with a pendulum crutch or fork provided with oppositely-arranged arms, one of which is provided with a lateral projection, of apivoted and weighted lever adapted to strike one arm of the pendulum crutch or fork, an electromagnet,means for swinging the weighted arm in an upward position, means for holding the weighted arm raised, means controlled from the pendulum crutch or fork for releasing the weighted arm, a pivoted arm provided with an upwardly-projecting contact-point adapt- EMIL MEYER Witnesses:
THEO. G. HOSTER, EVERARD B. MARSHALL.
US1901068925 1901-07-19 1901-07-19 Electric clock. Expired - Lifetime US698985A (en)

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