US3520125A - Pendulum clock - Google Patents

Pendulum clock Download PDF

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Publication number
US3520125A
US3520125A US793068*A US3520125DA US3520125A US 3520125 A US3520125 A US 3520125A US 3520125D A US3520125D A US 3520125DA US 3520125 A US3520125 A US 3520125A
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United States
Prior art keywords
pendulum
arm
liquid
pins
clock
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Expired - Lifetime
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US793068*A
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English (en)
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Hans Arthur Kuhn
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Individual
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Individual
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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
    • G04B1/00—Driving mechanisms
    • G04B1/26—Driving mechanisms driven by liquids or gases; Liquid or gaseous drives for mechanically-controlled secondary clocks
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/005—Regulating mechanisms where the movement is maintained by pneumatic means
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/02—Oscillators acting by gravity, e.g. pendulum swinging in a plane

Definitions

  • a liquid power pendulum clock comprising a source of liquid for supplying motive power, a pivotally mounted beam member, time-indicating means controlled by the beam member, and regulator means including a pivotally mounted balance means rigidly mounted on the pendulum for controlling the beam memher.
  • the balance means includes two channel-shaped arms for receiving the liquid, each of the arms having pocket means in communication with the channel means for temporarily holding the liquid.
  • the liquid In the extended position of the pendulum, the liquid is collected in one of the arms and discharged from the other whereby the beam member is alternatively acted upon on each side by the liquid being discharged from the balance means.
  • the oscillation of the pendulum thus affected causes a camcontrolled drive lever to turn a minute disc and an hour wheel.
  • a damper is provided so as to prevent the pendulum from swinging too far.
  • the invention relates to a pendulum clock having a regulating organ with means for diverting liquid, and a. beam alternately acted upon on each side by liquid for operating means for indicating the minutes.
  • a pendulum clock of this kind has been described, the liquid diverting means pivoting an operating member that cooperates with two oppositely acting springs, which kept the pendulum in oscillation by alternately giving it oppositely directed impulses.
  • the liquid diverting means also served to deliver liquid alternately to the two arms of a beam. The oscillation of this beam was transmitted by pawls to the hands of the clock and to the winding mechanism of the striking work.
  • the purpose of the invention is to produce a pendulum clock of the general kind described in the first paragraph of the preceding section, but which is appreciably simpler in design, yet a very exact timepiece.
  • FIG. 1 is a schematic front view of the balance, damper, and the pendulum in its center position
  • FIG. 2 is a side view of a part of the pendulum
  • FIG. 3 is a perspective view, partly broken away, of the damper and the central part of the balance; :and
  • FIG. 4 is a schematic front view of the entire clock.
  • the pendulum 3 comprising the bob 1 and the rod 2, is screwed into a yoke-like member 4, which, by means of hardened pivots 5, is mounted free to swing on a support 6.
  • the front end of the member 4 carries an upright support 7, to which is attached the beam 8, having the arms 10 and 11, of the balance 9, that acts as the regulating organ together with the pendulum.
  • Each arm 10 and 11 consists of an angled, generally U-shaped channel that is closed at its outer end, but is provided with an outlet tube 12.
  • Bend 13 in each arm broadly comprises a pocket means for temporarily holding liquid. The angle of the bend 13 in each arm is so chosen that when the pendulum 3 is in its center position (shown in FIG.
  • the two arm outer portions 10a and 11a incline somewhat upwards, whereas when the pendulum is at one end of its swing the arm outer portion of that arm which is lower slopes somewhat downwards.
  • the two arm inner portions 10b and 111) are also angled with respect to each other, so that the beam 8 has rather the shape of a W; in other Words, the two arm inner portions 101; and 11b slope downwards from the center of the beam; and the arm outer portions 10:: and 110, when the pendulum is in its center position, slope upwards.
  • the balance 9 incorporates a damping arrangement 14, the operation of which will be described later.
  • the arrangement comprises two transfer receptacles 15 having each an inner wall 15a.
  • Each receptacle is so mounted between the two side walls, at the inner end, of a respective arm inner portion, 10b, 11b that the inner walls 15a of the receptacles are spaced a certain distance from each other and from the beam middle.
  • Each transfer receptacle 15 embodies an outlet channel 16 that extends sufiiciently far towards the opposite beam arm so that the liquid can flow from the receptacle into the U- shaped channel of the other arm.
  • An outlet 17 for liquid is located directly above the middle of the beam 8.
  • a thin stream of liquid preferably water, falls down onto the beam.
  • the pendulum at the start, must be pushed; and the drive arrangement, here the balance 9, only serves to keep the pendulum oscillating.
  • the dimensions of the parts are so chosen that, when the pendulum 3 is in the position shown in FIG. 4, and the amplitude of the pendulum swing is normal, the stream of water falls between the walls 15a of the two transfer receptacles and, corresponding to the position of the central apex of the beam 8, the water fiows down the channel of the arm 11 and collects in the bend 13.
  • the weight of this water exerts a counterclockwise torque on the pendulum 3, which torque acts as an impulse to keep the pendulum swinging.
  • the upright support 7 carries a click 18 which cooperates with a drive wheel 19 that is arranged coaxially to the axis about which the pendulum 3 swings.
  • the wheel is provided near its periphery with thirty uniformly spaced drive pins 20.
  • the central part of the wheel consists of two approximately crescent-shaped cams 21, with an opening 22 therebetween, the function of which latter will be later explained.
  • the drive wheel 19 makes one complete turn every minute.
  • a stepping beam 27 is rigidly connected to the lever 26 and has two arms 28 and 29, which, as those of the balance 9, define a W and have each a bend 30 near their outer ends, in which water can collect.
  • Two funnels 31 and respective tubes 32 collect the water from the balance arms 10 and 11 and alternately pour it into a collecting funnel 33, which pours the water into the stepping beam 27.
  • the arms 28 and 29 of the latter serve to divert the water to the left or to the right, depending on the position of the drive lever 26.
  • the arm 29 is now positioned beneath the funnel 33 so that, once the other arm 28 is emptied of its water, a counterclockwise torque acts on the lever 26, which torque presses the cam follower against the opposite cam 21 untilas is the case every 30 seconds-the follower is free to move through the opening 22 and the drive lever 26 can swing back.
  • an advancing pawl 35 Pivotally connected to the lever 26 is an advancing pawl 35 which cooperates with the pins 36 of the transparent cannon pinion having a minute hand 37.
  • Sixty pins 36 are evenly distributed at an angular spacing of 6 near the periphery of the cannon pinion.
  • Five pins 36a (or every twelfth one) of these sixty pins are evenly spaced along a circle having a radius smaller than that along which are located the remaining pins. Since the lever 26 makes a move every seconds, the advancing pawl turns the cannon pinion through a distance equal to the spacing between two successive pins 36, or 6, and thus the hand 37 indicates the minutes in the usual manner.
  • the hour wheel 24, shown in dash line in FIG. 4, is mounted coaxially behind the transparent cannon pinion 25 and has fixed to it a hand 38 for showing the hours.
  • the hour wheel is also provided with a circle of sixty pins 39, the circle defined having the same radius as that defined by the pins 36a.
  • the pawl 35 is constructed as a double pawl, of which the front arm 35a cooperates with the pins 36 and the rear arm 35b (shown in dash line in another pawl position) with the pins 39 of the hour wheel 24.
  • the construction of the invention eliminates nearly all friction producing parts and produces a clock of improved accuracy with simpler design.
  • a liquid powered pendulum clock comprising: a source of liquid for supplying the motive power to said clock; a pivotally mounted beam member; time-indicating means controlled by said beam member; and regulator means including a pivotally mounted balance means rigidly mounted on said pendulum for controlling said beam member, said balance means including two channelshaped arms for receiving said liquid, each of said arms having pocket means for temporarily holding said liquid, said pocket means being in communication with said channel means, so that in the extended position of said pendulum, said liquid is collected in one of said arms and discharged from the other whereby the beam member is alternatively acted upon on each side thereof by said liquid being discharged from said balance means.
  • the pendulum clock as defined in claim 2 including a pivotally mounted drive lever rigidly mounted to said beam, at free end incorporated by said lever, a drive wheel moved stepwise by said balance, a cam incorporated by said drive wheel and cooperating with said lever free end to free said drive lever to pivot at regular time intervals that correspond to the time intervals shown by said minute indicating means.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Toys (AREA)
  • Special Spraying Apparatus (AREA)
US793068*A 1968-01-24 1969-01-22 Pendulum clock Expired - Lifetime US3520125A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH128968A CH481410A (de) 1968-01-24 1968-01-24 Flüssigkeitsgetriebene Pendeluhr

Publications (1)

Publication Number Publication Date
US3520125A true US3520125A (en) 1970-07-14

Family

ID=4206942

Family Applications (1)

Application Number Title Priority Date Filing Date
US793068*A Expired - Lifetime US3520125A (en) 1968-01-24 1969-01-22 Pendulum clock

Country Status (3)

Country Link
US (1) US3520125A (de)
CH (2) CH128968A4 (de)
DE (1) DE1903189A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871167A (en) * 1973-05-22 1975-03-18 Gossem Hekmat Afshar Turbine clocks
US4372688A (en) * 1982-01-28 1983-02-08 Chatten Victor H Liquid operated clock

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013208863A1 (de) * 2013-05-14 2014-11-20 Resonic Gmbh Schwerependel, Adapter und Halterung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US842130A (en) * 1905-08-21 1907-01-22 Barnard Company Pendulum.
US1235579A (en) * 1914-09-02 1917-08-07 Paul M Lincoln Timing device.
DE379638C (de) * 1920-12-13 1923-08-25 Suedbahn Ges Hemm- bzw. Reguliervorrichtung fuer Laufwerke und aehnliche Einrichtungen
US1520204A (en) * 1923-06-11 1924-12-23 Opich Nick Water clock
DE477563C (de) * 1926-05-29 1929-06-10 Askania Werke A G Vormals Cent Daempfungsvorrichtung
US1743231A (en) * 1920-05-29 1930-01-14 Cutler Hammer Inc Device for timing and controlling impulses
US2375568A (en) * 1942-07-22 1945-05-08 Mcauliffe Patrick Fluid clock

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US842130A (en) * 1905-08-21 1907-01-22 Barnard Company Pendulum.
US1235579A (en) * 1914-09-02 1917-08-07 Paul M Lincoln Timing device.
US1743231A (en) * 1920-05-29 1930-01-14 Cutler Hammer Inc Device for timing and controlling impulses
DE379638C (de) * 1920-12-13 1923-08-25 Suedbahn Ges Hemm- bzw. Reguliervorrichtung fuer Laufwerke und aehnliche Einrichtungen
US1520204A (en) * 1923-06-11 1924-12-23 Opich Nick Water clock
DE477563C (de) * 1926-05-29 1929-06-10 Askania Werke A G Vormals Cent Daempfungsvorrichtung
US2375568A (en) * 1942-07-22 1945-05-08 Mcauliffe Patrick Fluid clock

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871167A (en) * 1973-05-22 1975-03-18 Gossem Hekmat Afshar Turbine clocks
US4372688A (en) * 1982-01-28 1983-02-08 Chatten Victor H Liquid operated clock

Also Published As

Publication number Publication date
DE1903189A1 (de) 1969-10-23
DE1903189B2 (de) 1970-11-19
CH128968A4 (de) 1969-07-31
CH481410A (de) 1969-07-31

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