US1257024A - Non-warning chime-clock. - Google Patents

Description

W.'E. PORTER.

NON-WARNING CHIME CLOCK.

APPLICATION FILED OCT 31. 1911.

Patented Feb. 19, 1918.

STATES PATENT OFFICE.

WILSON E. PORTER, OF NEW HAVEN, CONNECTICUT, ASSIGNOB TO NEW HAVEN CLOCK 00., OF NEW HAVEN, CONNECTICUT, A CORPORATION.

NON-WARNING CHIME-CLOCK.

Specification of Letters Patent.

Patented Feb. 19, 1918.

Application filed October 31, 1917. Serial No. 199,457.

To all whom it may concern:

Be it known that 1,1VILSON E. PORTER, a citizen of the United States, residing at New Haven, in the county of New Haven,

and State of Connecticut, have invented a new and useful Improvement in Non- -Warning Chime-Clocks; and I do hereby declare the following. when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this application and represent, in

Figure 1 a view in rear elevation of a chime-clock movement constructed in ac cordance with my invention.

Fig. 2 av broken plan view thereof, on an enlarged scale, showing the rear movementplate, the chime-drum driving wheel, the chime count-wheel, the chime guard-wheel and the chime count-hook, of my improved mechanism.

Fig. 3 a detached view in front elevation of the chime-drum driving wheel, the chime count-wheel, the chilne guard-wheel, and the chime count-hook, showing the parts at rest.

Fig. 4 a view thereof in inside elevation.

Fig. 5 a view thereof in vertical central section.

Fig. 6 a detached perspective view of the chime count-wheel showin the count-hook in broken lines as being lifted by the rearwardly inclined advancing wall of one of the stop-notches in the wheel.

Fig. 7 a corresponding view of the chime guard-wheel.

My invention relates to an improvement in that class of chime-clocks in which the so called warning function is dispensed with and the release of the chime-train by the time-train is effected in one step instead of in two steps as in warning clocks, the object being to provide simple and reliable means for preventing the jamming, and hence the stopping, of the chime-mechanism in case the chime-train thereof is released accidentally, that is to say, in any other way than by the normal action of the timetrain.

\Vith these ends in view, my invention consists in a chime-clock having certain details of construction and combinations of parts as will be hereinafter described and pointed out in the claims.

As herein shown, the advancing walls 2 of the chime- stop notches 3, 4, 5 and 6 of the chime count-wheel 7 are rearwardly inclined so as to act as cams upon the finger 8 of the chime count-hook 9 for lifting the same into position to clear the guard- fingers 10, 11, 12 and 13 of the chime guard wheel 1 1 under certain conditions not provided for by the time-train which ordinarily lifts the said. hook high enough to clear the said guardfingers concurrently with its release of the chime-train. The said guard-wheel 14: is mounted so as to turn freely upon the annular shoulder 15 of a hub 16 to the annular shoulder 17 of which the chime count-wheel 7 is staked. The said stop- notches 3, 4, 5 and 6 of the count-whee1 7 are separated by peripheral sustaining surfaces or dwells 18, 19, 20 and 21 progressively increasing in length as required for sounding the chime on the quarters and the hour in the usual manner. The rearwardly inclined advancing walls 2 aforesaid, are, in effect, continued outwardly in the forward edges of lifting fingers 22 virtually forming parts of the dwells 18-, 19, 20 and 21 aforesaid. A spring 23 encircling the hub 16, is connected at one end to a screw 24 in the guard-wheel 14 and at its opposite end to the spoke 25 of a chime-drum driving wheel 26 staked upon the rear end of the said hub 16 which is mounted upon the projecting rear end of the shaft 28 of the chime-train which comprises, as shown, the said shaft 28, the pinion 29 thereon, a wheel 30 which meshes into the said pinion 29, an arbor 31 which carries the said wheel 30, and a pinion 32 which latter meshes into the main wheel 33 of the chime-train. A stop-pin 31 in the count-wheel 7 projects inwardly through a slot 35 in the guard-wheel 1% and limits the oscillatory movement thereof. The normal tendency of the guard-wheel spring 23 is to hold the same in the position in. which its guard- fingers 10, 11, 12 and 13 bridge the respective stop- notches 3, 1, 5 and (3 of the count-wheel 7. The chime-drum drivingwheel 26 meshes into a wheel 36 at the inner end of the chime-drum 37 which is furnished vith pins 38 engaging with fingers 39 depending from chime-hammer plates 40 carrying chime-hammer wires 41 mounting hammers 42. The said chime-hammer plates 10 are themselves mounted upon a stud 4C3 projecting from the rear movement-plate 44. The hammer-plates 40 are also formed with hammer-tails 15 normally resting against a buffer 46. The chime count-hook 9 is mounted upon an arbor 47 periodically operated by the time-train which is of any approved construction, and therefore not shown.

In the ordinary operation of the mechanism described, the count-hook 9 is abruptly lifted every quarter hour through the agency of the time train and concurrently with the releasing of the chime-train thereby. Supposing the finger 8 of the count-hook 9 to be in the stop-notch 3 shown in the drawings, the said finger S will be lifted as described so as to clear the guard-finger 10 of the guard-wheel H the sprirg 23 of which will quickly assert itself to rock the guard-wheel in the forward direction, whereby its finger 10 will be carried under the finger S of the count-hook and bridge the notch 3, while at the same time its fingers ll, 12 and 18 are shot into place to bridge the stopnotches 4, 5 and 6, though to no purpose. The wheels 7 and 1% will now be rotated together by the action of the chime-train, whereby the said finger 8 will ride over the adjacent lifting-finger 22 of the count-wheel and drop therefrom upon the dwell 18 of the said wheel. As the two wheels are thus rotated together, the advancing edge of the guard-finger 11 engages with the counthook finger 8, the spring 23 yields and the further rotation of the guardwheel H is stopped. The finger 8 of the counthook, after a brief interval, drops into the stop-notch 4 and thus permits the arbor d7 to be turned as required for stopping the chime-train. This sequence of eyents is reproduced on each quarter hour and constitutes the normal operation of the chime-mechanism.

Now in the event of the accidental release of the chime-train instead of its normal release by the time-train, the count-wheel 7 will be started in revolution without preparation therefor by the normal lifting, through the agency of the time-train, of the count-hook 9, the lifting of which in the normal operation of the clock, is concurrent with the starting of the count-wheel. The count-wheel having been accidentally started, as described, the rearwardly inclined advancing wall 2 of the particular count-wheel notch in which the finger S of the counthook happens to be at the moment, will act as a cam to lift the hook sufficiently to permit the complementary finger of the guardwheel let to shoot under it, and thus permit the chime-mechanism to function properly as a chiming-mechanism, but out of order as to time. If the walls 2 of the stop- notches 3, 4, 5 and 6 were not rearwardly inclined as shown and described, the starting of the count-wheel out of time would result in the engagement of the advancing wall of the count-wheel notch with the face of the of the count-wheel 7, as

count-hook finger and jam or block, and so stop the chime-train beyond the power of the time-train to automatically release it on the next quarter hour. Supposing the chime-mechanism to be thus jammed, it must be released by someone having sutlieient knowledge of the construction and operation of chime-clocks to locate the dilliculty and remove it. On the other hand, under my invention, in case the chimee'ncchanism is accidentally started, the countwhecl automatically lifts the count-hook and permits the chiming-1mechanism to run through at least one chiming phase, or perhaps more, dependent upon circumstances, but in any event no jamming or blocking can take place. Nothing more serious can therefore happen in case the chiming-mechanism is accidentally started, than the ale-synchronizing of the chime and time-trains, and this can be remedied by any user of the clock by manipulating the hands thereof.

I claim l. A non-warning chime-clock characterized by having its chiare-mechanism constructed and adapted to lift the chime counthook into position to clear the chime countwheel in case the chime-1nechanism is accidentally started, and therefore at a time when the said count-hook has not been lifted by the action of the time-train to clear the count-wheel preparatory to the starting of the chime-train.

2. In a non-warning chime-clock, the combination with a chime count-wheel having stop-notches separated by peripheral dwells and lifting-fingers, the advancing walls and the forward edges of the said stop-notches and lifting-fingers being rearwardly inclined; of a spring-actuated chime guard-wheel located adjacent to the said chime count-wheel and formed with guardfingers corresponding in position to the respective stop-notches of the chime countwheel, and a count-wheel hook formed with a finger adapted to co-act with the said count and guard wheels, and normally lifted to clear the same by the time-train concurrently with the operation thereof to release the chime-train, the saidcount-wheel hook being lifted by the rearwardlv inclined advancing walls of the said stop-notches and lifting-fingers in case the chime-train is started otherwise than by the normal action of the time-train, whereby the jamming of the chime-train is avoided.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

lVILSON E. PORTER. lVitnesses:

C. L. \Vnnn, M. P. NICHOLS.

Goples 0! this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

Washington, D. G."

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