US395110A - Clock striking mechanism - Google Patents

Description

(ModeL) 3 SheetsSheet 1.

O. ARONSON.

CLOCK STRIKING MEGHANISM.

No. 395,110. Patented Dec. 25, 1888.

WITNESSES:

' I INVENTOR:

ATTORNEYS.

N. PFKERS. How-Lithographer. washin lcn. D,C

UNITED STATES PATENT (llAlhl ARONHOX, Ol BROOKLYN, Ni lW YORK.

CLOCK $TFllKlNG MECHANlSW.

SPECIFICATION forming part of LCL'uQl'; Patent 27c 395,110, dated December 25, 1888.

Application filed December '7, 1887. Serial No. 257,191. dliotleld To all 2!,7L0'I/b it may concern..-

v hour hands ma be of an approved con- Be it known that I, CHAIM Anoxsox, a citil struction, and hence I do not limit myself to zen oi Russia, at present residing in Brookl any peculiar constiaiction with this mechanlyn, in the county of Kings and State of New l ism, and a further description olf the various 5 York, have invented a new and Improved 1 parts belonging to the same is not deemed Clock, of which the following is a full, clear, 3 necessary, with the exception ol' such parts and exact description. as are directly connected with the improve- The object of my invention is to provide a Z ment. new and improved clock which strikes the full The clock A is provid d with the shaft 13, IO hour at every quarter-hour. I I carrying the minute-lmnd and operated in The invention consists in the constructie the usual manner by suitable gear-wheels set and arrangement of certain parts and details in motion b v springs or weights. On the and combinations of the same, as will befully shaft l3 is secured an arm or lag, t', znlapted described hereinafter, and then pointed outin 3 to operate on the star-wheel I). having twelve 15 the claims. l teeth and mounted to operate on a stud se- 'Reference is to be had to the; "companying l cured to the frame E of aclock, A. A Spring drawings, forming a part of this specification, l pawl, l), engages the teeth of the wheel I) in which similar letters of reference indicate l and serves to hold the latter in its respective corresponding parts in all the figures. position. The arm or lug t turns the star- 20 Figurel is a front elevation of the improve- 1 wheel 1) the distance of one tooth for every ment with the dial-plate removed and parts revolution of the minute-shalt it. broken out. Fig. 2 is an end elevation of the ()n the face of the star-wheel I) secured same with parts in section and parts of the l a cam, F, operating the hour-striking device clock mechanism removed. Fig. 3 is a trout and having its outer edge l'ormed into a 25 elevationof the same with parts in section l gradually-increasing helical. On this heliand parts removed. Fig. lis a sectional plan l cal edge of the cam i is held one end of the view of the upper part of the improvement. l lever G, fulcruined at G to the casingplates Fig. 5 is a like view of the lower part of the its other end resting on the outer end improvement. Fig. 6 is a face view of the of the snaft ll, adapted to slidetransverselyin 3o cam for operating the hour-striking device. a sleeve, H having its bea ing in the frame E. Fig. 7 is a side elevation of the same. Fig. 8 2 On the shaft H is secured an arm or ltli, is a face viewot the gin-disk. f; a side l H, extending through a transverse slot, H elevation of the same. Fig. 10 i rcar face formed in the sleeve l1 and the said arm or view of the same. Fig. 11 is a side elevation 1 lug H is adapted to engage alternately the 35 of the cam tor operating the quarter-hour twelve pins l, numbered 1. '3 3t 5 o T 910 11 striking device. Fig. 12 is a front face view 12, respcctivclv, and projectingin a circle from of the same, and Fig. 13 is a rear Face view oi the front face of the wheel J, secured on the the same. l shatt J, mounted to rotate in suitable bear- The object ol' the invention, as stated, has l ings on the casing-plates E, and carrying a o heretofore been accomplished either by a se r gear-wheel, K, meshin into the gear-wheel K arate quarter-lrour-striking mechanism operot the train of gear-wheels of the strikingrated by springs or weights indepcmlentlv of train. operated by sprin or weights in any the entire driving mechanism, or b v a mechsuitable manner. The twelve pins I are of 5 anism of such complicated character as to different graduallv-increasing lengths, and 45 render the entire clock impracticable. serve to strike the hours and quarters. The \Yith myimprovement, presentlvto be depins I are placed equal distances apart in scribed, I accomplish the object in a vcrv three-( uartcrs ot a circle of. which the fourth simple manner. The improvement is adaptquarter is left blank for an interval in strik- IOO able to clocks operated either b v springs or ing the quarter and tull hour. The three 50 weights and striking the full and quarter longestpins,l, 2, and I), not onl vhclp to strike hours. 7 the full hours, but also serve to strike the l The mechanism for driving the minute and quarter-hours by operating on an arm or lug,

L, secured to a shaft, L, adapted to slide transversely in suitable bearings formed in the frame E.

On the outer front end of the shaft L presses one end of a lever, N, fulcrumed at N and resting at its other end on the helical edge of a cam, O,fastened on the outer face of a gearwheel, 0, mounted; to rotate on the shaft 0' and meshing into the gear-wheel "3, secured to the minute-hand shaft L, which is operated as above described. The gear-wheels I3 and 0 have the same number of teeth, and consequently both make one revolution to each revolution of the minute-hand shaft B. The helical edge of the cam O has three steps, a, b, and 0, serving to place the pin L in such relative position to the long pins 1, 2, and 3 as to strike the first quarter, the half, and the third quarter.

On the rear face of the gear-wheel O are arranged in a circle the four equidistant pins P, of which three are the same length, one being somewhat longer than the others. The pins P operate on one end of the torsion-s )ring Q, coiled 011 an arm, R, of the bell-crank lever R, secured to the shaft R having its bearings on the casing-plate E, and being adapted to slide transversely. The end of the arm R is slotted, as shown in Figs. 1 and 5, and through this slot passes the end of the said torsion-spring Q. 011 the other arm, R of the bell-crank lever R is formed a catch, R", adapted to engage a corresponding notch, J formed in the rim of the disk J and serving to unlock the latter or lock it in place after every revolution.

The shaft R is mounted to slide transversely in the frame E and carries an arm or lug, R adapted to be engaged by the wedgeshaped lug J formed on the inner face of the disk J. At every revolution of the latter, which revolutions take place at every quarterhour, the wedge-shaped lug J presses the arm R and its shaft R inward, so that the straight end of the torsion-spring Q slides over the respective pin P, and the disengaged catch R can now engage its notch .l' of the disk J thus locking the latter in place.

The disk J is rotated by the strikingtrain, but is controlled by the time-train, inasmuch as the catch R disengages the notch J of the disk at every one-fourth of an hour by the action of the time-train on the lever B, as before described. Thus when the catch R" is disengaged the disk J ispermitted to rotate by the action of the striking-train. (Shown in Figs. 1, 2, and 3.)

()n the shaft R is also secured an 'arm, R, extending to one side of the casing E and adapted to engage the flutter-wheel S whenever the catch R engages the notch J", and when the latter is disengaged at every quarter of an hour the arm R is also disengaged from the flutterwheel S, thus permitting the latter to rotate simultaneously with the disk J as both are connected with the gear-wheels 5 Operating the striking mechanism. The torsion-spring Q serves to press the catch R" of the arm E into the notch J 2 of the disk J.

On the shafts H and L are secured the arms H and L respectively, each having an eye on its outer end engaging the U-shaped arms T and Y, respectively secured on the transverse shafts T and U, mounted to turn in suitablebearings formed on thecasing-pla-te The shafts T and i also carry on their inner ends the strikers Y and V, respectively, adapted to strike on two bells of different pitch and located on the rear plate of the easing-plate E. The striker V strikes the hours and thestriker \V strikes the quarter-hours. The torsion-springs T and l are coiled on the shafts T and l', respectively, and serve to hold the strikers V and \V in their usual positions in relation to their bells until the said shafts T and U are acted on, as hereinafter more fully described, in order to strike alternately the full and quarter hours. The button X, pivoted on the casing-plate, is provided with a beveled edge adapted to pass over the end of the shaft R and press the end of the torsion-spring Q out of contact with the three short pins P, secured to the gear-wheel O.

The operation is as follows: \Vhen the driving and striking devices of the clock are wound up in the usual manner, the driving mechanism operates 011 the shaft B, so as to rotate the minute-hand, secured on the said shaft in the usual manner, on the dial of the clock. The striking mechanism is held in a locked position by the arm It engaging the wings of the flutter-wheel b until the minutehand on the shaft B reaches, say, the first quarter of an hour, and then the arm R is moved out of contact with the respective wing of the flutter-wheel by the rocking of the bell-crank lever R, which is accomplished by one of the pins l pressing against the end of the torsion-spring Q, so that the arm R of the bell-crank lever it is moved to the right and the other arm, R with its catch R, moved out of cimtact with the notch J 2 of the disk J, and at the same time that the said arm R is moved out of contact with the flutterwheel b. The striking device is now set in motion by its spring or weight, so that the gear-wheel K of the train of gear-wheels meshing into the gear-wheel K on the shaft J causes the latter to revolve with its disk J. The flutter-wheel S is operated from the same train of gear-wheels, as shown in Fig. The pin ll is now engaged on the rotation of the said disk J by the number of pins 1 corresponding to the hour preceding the quarter of an hour above mentioned that is, if the minute-hand stands at a quarter past six then the pins I numbered from 6 to 1 will successively engage the said arm H, thus striking the h our-bell six times before the full revolution of the wheel J is completed, and the longest pin I, numbered 1, strikes on the arm L, so that the quarter-hon r bell is sounded once. The other pins I do not engage the j arms H and L on account of the respective positions of the latter, which positions are governed by the cams F and 0. As shown in Fig. 1, the upper end of the lever G engages the helical edge of the cam F opposite the inparts, so that the said lever G with its lower position that its pin ll stands midway between the shortest and longest pins, 1 and j the helical edge of the cam l".

12, of the pins.It-hat is, when the disk J rotates the pins numbered from 12 to 7 do not engage the said arm Il-and hence the hour-bell is sounded only six times.

scribed. terseeting point of the lowest and highest certain distance, so that the pin numbered 7 will first engage the arm H whenever the disk J makes its revolution, as above de- Thus it will he understood that whenever the star-wheel I) has made a full revolution twelve hours have passed, and the end presses the shaft H into such a relative t upper end of the lever (1 drops again upon the zero-pointthat is, on the lowest part of In a similar manner the upper end of the lever X will always drop on the zero-point of the helical Inasimilar manner the posit-ion of the pin L is regulated by the cam 0, the step a of which the cam t).

engages the upper end of the lever N, so 1 one revolution, the wedge engages the arm R and pushes the latter, with its shaft R'-, in-

' ward, so that the end of the torsion-spring Q cam 0 whenever one full hour has passed and the said upperend of the lever) has traveled over the steps (I, h, and r of the outer edge of The springs 'l. and l' on the shafts T and serve to hold. the strikers Y and \V in their respective positions in relation to their bells. and at the same time hold As soon as the disk J has nearly completed I drops off at the inner end of the respective 1 pin P, and as the said torsion-spring Q had 1 been pressed by the action of the said pin P it presses on the bell-crank lever B, so that the catch R" again drops into the notch .1 which is now opposite to it, and at the same time the arm R, secured on the shaft R end of the torsion-spring Q as soon as the by the said cam, a transversely-sliding shaft minute-hand has reached the half-hour, and l operated on bythe said lever and carrying an the same operation for disengaging the iiutter- 1 wheel S and the disk .I is repeated, as above described. hen the disk J is rotated, its pins numbered from 6 to 1 first engage the arm H and again strike six times on the houebell, and then after a short interval the thus sounding the quarter-hour bell twice.

changed during this one-quarter-hou r movement of the minute-hand shat'tB, as the lever G and the shaft II are only operated on when a full hour is completedthat is, the arm 0 on the shaft. B pushes the star-wheel D the distance of one of its twelve teeth whenever the minute'hand has completed a full hour. \Vhenever the arm 0 has shifted the star- 1 wheel D the distance of one tooth, the upper end of the lever G has been moved outward and the lower end moved inward, so as to shift the shaft H, with its arm H, inward the distance equal to the difference between two successive pins, I, on the disk J, so that when the minute-hand on the dial has completed the full hour the arm H is shifted inward a the pins ll and L in position to be engaged by the succeeding pins I on the pins .1.

Having thus fully describedmyinvent ion,l claim as new and desire, to secure by Imtters Patent 1. In a clock, the combination, with the minute-hand shaft, of a he]ical-edgtal cam operated from the said shaft, a lever connected at its upper end with the said 'helieal-edgtal cam. a transverse sliding shaft operated on by the said lever and carrying an arm or lug. and a disk provided with pins gradually increasing in length when set in motion by the striking mechanism, said pins operating on said transverse shaft. which operates the striker, substantially as shown and described.

2. In a clock, the combination, with the minute-hand shaft carrying a gear-wheel, ot' a gear-wheel mounted on a stud and with which meshes the first-named gearwheel, a l helical-edged cam formed on the front faceof i the said second gear-wheel, a lever operated arm or lug, and a disk provided with pins gradually increasing in length and having a rotary motion, three of said pins operating on the said arm orlug on the transverse shaft,

f which carries a striker, substantially as shown 1 and described. two longest pins, 2 and l, engage the arm L,

'5. In a clock, a disk rotated by suitable i mechanism and provided with pins of differ- The position of the arm H has not been 1 ent gradually-increasing lengths, in combinati on with an arm or lug on which the said pins operate, said arm or lug being secured to a shaft operating the hour-striker and having a transverse sliding motion controlled by the minute-hand shaft, substantially as shown and described.

l. In a clock, a revolving disk provided with pins of different gradually-increasing lengths and arranged in three-quarters of. a circle on the said disk, in combination with an arm or lug on which the three longest pins operate, said arm or lug being secured to a shaft operating the quarter-hour striker and having a transverse sliding motion controlled by the minute-hand, substantially as shown and described.

IIO

5. In a clock, a disk having a rotary motion and provided with pins of different graduallyincreasing lengths and arranged in threequarters of a circle on the said disk, in combination with an arm or lug on which the i equal distances apart,atorsion-spring having said pins operate, said arm or lug being secured to a shaft operating the hour-striker and having a transverse sliding motion controlled by the minute-hand shaft, and a second arm or lug operated on by the three longest of the said pins, said second arm or lug being secured to a shaft operating the quarterhour striker, and having a transverse sliding motion also controlled by the minute-hand shaft, substantially as shown and described.

6. In a clock, the combination, with the minutehand shaft carrying an arm, of a starwheel provided with twelve teeth operated on by the said arm, a l'lPllCzll-Wlg'ttl cam formed on the outer face of the said starwheel, a lever held with one end in contact with the helical edge of the said cam, a shaft operating the hour-striker and receiving a transverse sliding motion from the said lever, an arm or lug projecting from the said shaft, and a revolving disk provided with pins of different gradually-increasing lengths and arranged in three-quarters of a circle on the said disk, said pins operating on the said arm or lug, substantially as shown and described.

7. In a clock, the combination, with the minute-hand shaft carrying a gear-wheel, of a second gear-wheel meshing into the said first-named gear-wheel, four pins secured to the rear face of the said gear-wh eel, and placed equal distances apart, a torsionspring having a straight end engaged alternately by the said four pins, a bell-crank lever on which the said torsion-spring is held, a shaft having a transverse sliding motion and carrying the said bell-crank lever, an arm projecting from the said shaft, and a disk having a rotary motion and provided with a wedge on one of its faces, said wedge engaging at every revolution of the said disk the said lug or arm on the said shaft, so as to cause the latter to slide transversely, substantially as shown and described.

8. In a clock, the combination, with a minute-hand shaft carrying a gear-Wheel, of a second gear-Wheel meshing into the said first-named gear-Wheel, four pins secured to the rear face of the said gear-wheel and placed a straight end engaged alternately by the said four pins, a bell-crank lever 011 which the said torsion-spring is held, a shaft having a transverse sliding motion and carrying the said bell-crank lever, an arm projecting from the said shaft, a disk having a rotary motion and provided with a wedge on one of its faces, said wedge engaging at every revolution of the said disk the said lug or arm on the said shaft, so as to cause the latter to slide transversely, and an arm secured to the said shaft and adapted to engage the flutter-Wheel of the clock, substantially as shown and described.

$1. In a clock, the combination, with the minute-hand shaftcarrying a gearwheel, of a second gear-wheel meshing into the said first-named gear-wheel, four pins secured to the rear faceof the said gear-wheel and placed equal distances apart, a torsion-spring having astraight end engaged alternately by the said four pins, a bell-cran k lever on which the said torsion-spring is held, ashaft having a transverse sliding motion and carrying the said bell-crank lever, an arm projecting from the said shaft, a disk having a rotary motion and provided with a wedge on one of its faces, said wedge engaging at every revolution of the said disk the said lug or arm on the said shaft, so as to cause the latter to slide trans verscly, an arm secured to the said shaft and adapted to engage the flutter-wheel of the clock, and a catch formed on one arm of the said bell-crank lever and adapted to engage a corresponding notch formed in the rim of the said disk, substantially as shown and de scribed.

CHAIM ARONSON.

\Vitnesses: 4 I

THEO. G. HosTER, C. SEDGWICK.

Images