US909298A - Clock. - Google Patents

Description

E. P. HERSCHEDE.

OLOGK.

APPLIOATION FILED r22. 13, 1908.

909,298. Patented Jan. 12, 1909.

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E. F. HERSGHEDB.

OLOGK. APPLICATION FILED IBB. 13, 1908.

909,298. Patented Jan. 12 1909.

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PATENT OFFICE.

EDWARD F. HERSCHEDE, OF CINCINNATI, OHIO.

CLOCK.

Specification of Letters Patent.

' e Patented Jan. 12, 1909.

Application filed February 13, 1908. Serial No. 415,656.

To all whom it may concern:

Be it known that I, EDWARD F. HER- SGHEDE, a citizen of the United States of America, and resident of Cincinnati, county of Hamilton, and State of Ohio, have invented certain new and useful Improvements in Clocks, of which the following is a specification.

My invention relates to clocks which strike the hour and chime the quarter hours.

lhe object of my invention is a clock having few and simple parts for effecting the striking and the chiming and which is provided with means for automatically correcting the chiming, should the chime mechanism be set so as not to correspond with the quarters and which is provided with a means for silencing the chiming and the striking mechanism, which may be readily operated either to' silence the clock or to re-set it for for striking and chiming.

Referring to the accompanying drawings, in which like parts are indicated by similar reference letters, wherever they occur throughout the various views, Figure 1 is a front elevation of a clock movement embodying my invention. Fig. 2 is a sectional view taken upon line :c v of Fig. 1. Fig. 3 is a detail sectional view of the cylinder upon line y-y of Fig. 1 looking toward the right. Fig. 4 is a detail sectional view of the track, taken upon line y---y, Fig. 1, looking toward the left. Fig. 5 is a longitudinal sectional detail view of the track, the shaft of the cylinder and the gear wheel for revolving the movable track. Fig. 6 is a detail perspective view of the levers which control the movement of the cylinder. Fig. 6, Fig. 7 and Fig. 8 are detail views of the locking wheel and of the different positions of the regulating levers, relative thereto. Fig. 9 is a detail perspective view of the releasing wheel. Fig. 10 is a perspective view of the cylinder and its shaft.

Referring to the parts: between the front plate, A, and the back plate, A, are mounted transverse shafts, a, a, the shaft, a, for actuating the train of gears which control the time movement, and the shaft, a, for actuating the train of gears which moves the cylinder. Shaft, a, is moved by a spring, A. The train of gears for the time movement is controlled by the escapement, A Cylinder, B, is secured upon a shaft, b, which is journaled between the end plates, 0?, a Cylinder, B, has four sets of pins, 0, c c and 0 which, in the normal position of the cylinder, B, are in the path of the lower end of arms, 0 which are pivoted upon a movable block, 0 and at their upper ends are connected by cords, c, to the hammers C, which strike the tubular bell, C, for chiming the quarters. Cylinder, B, has also a set of pins, d, which when the cylinder is shifted, stand in the path of the lower end of an arm, d, which is pivoted upon a movable block, 01 and is connected at its upper end'by a cord to the hammer, D, which strikes the hour tube, D.

I will describe first the means of controlling the rotation of cylinder, B, to effect the chiming at the quarter hours. Cylinder, B, has at its right hand end a collar having teeth, I), which intermesh with the teeth of a crown gear 0, which is secured upon a shaft, e, whose lower end carries a bevel gear, e which is connected by gear wheel, E with the locking gear wheel, E. The locking gear wheel, E, is connected by a train of gears with the actuating shaft, a. Gear wheel, E, has four retention pins, 6 in whose path the inwardly turned end, f, of a lever, F, normally stands, so as to lock the wheel, E, against rotation and thereby to prevent the rotation of the cylinder, B. The normal relative position of the lever, F, and the wheel, E, is illustrated in Fig. 6. The end, f, of the lever, F, is raised above the path of the pins, 6, in the following manner: Lever, F, is pivoted upon a stud, f projecting for ward from the plate, A, the plate being slotted at A to permit the end, f, to project through plate, A, and to stand in the path of the pins, 6 Upon stud, f, is likewlse pivoted a bell-crank lever, G, which has its upper end bent inward at, g, to stand adjacent to the face of the end, f, of the lever, F,-which contacts the pins, a To the other arm of the lever, G, a finger, g, is pivoted to stand in the path of pins, h, of a wheel, h, which has one revolution per hour and will be termed the one hour wheel. WV hen one of the four pins, h, contacts the finger, g, it

raises the end, g, causes it to pass in between the pin, c and the end, f, as illustrated in Fig. 7 and then to raise the end, f, above the path of the pins, 6 After the pin, h,

has assed the finger, g, the lever, G, drops to the bottom of the slot, A as shown in Fig. 8, below the path of the pins, 6 thereby releasing the wheel, E, and permitting a rotation of the cylinder, B. The end, f, is held in 40 end of the cylinder, as illustrated in Fig. a.

twelve hours. I 60 within the face of the track, M, and the disk,

65 groove, a.

When the arm, G, is raised as aforedescribed, its pin, 9 raises the arm, K, so that the pin,

f ,-of the lever, F, takes into the notch, 7:

The arm, K, then retains the lever, F, in itsraised position until the arm, F, is raised out of engagement with the notch, W, in the fol- 10 lowing manner: Lever, F, has an upwardly projecting arm, F, whose finger, f projects inward in the path of pins, f, upon the'cylinder B. These pins are located upon the cylinder, B, in position such that they will contact the finger, f after the clock has chimed the first, second and third quarters,

raising the lever, F, so as to allow the arm, K, a

to drop to it's normal position, against the pin, 9 of the arm, g, which has dropped to the bottom of the slot, A and after the pins,

f have passed the ihigers, f permit the lever, F, to drop to its normal position in which the'pin, f engages the slot, 7c, of the slot, K, such position being illustrated ini Fig. 6, to engage the next pin, 0 Since wheel, 72/, makes one rotation an hour and has four pins, h, arm, G, will be raised, every fifteen minutes by a pin, h, to release wheel, E. The pins, f, are so arranged that these four fractional rotations of cylinder, B, at

the quarters, make one full rotation.

I will now describe the mechanism for effecting the shifting of the cylinder and the striking of the hours: The cylinder, B, and

shaft, b, have a normal pressure toward the left exerted upon them by a spring, a The tendency to move toward the left is counteracted by a pin, 6 which is carried upon an arm, 6 pivoted upon a stud, 6 upon the Pin, 6 is held by a spring, 6 against the rim upon the end of the cylinder, B, so that the pin, 6 normally contacts the fixed circular track, M, which may be termed the minute track and which is secured upon the inner face of the end plate, a Within track, M, is a disk, N, which may be termed the hour track and which is journaled upon shaft, 1), and has upon its periphery teeth, n, which engage the teeth of a crown gear, n, which is secured upon a shaft, vi the lower end of which carries a bevel gear, a which intermeshes with a bevel-gear secured upon a shaft, n, which carries at its end a gear wheel, n, which meshes with the twelve hour wheel, H, so called, because it has one revolution in twelve hours, the disk, N, being geared so that it has one revolution in The face of disk, N, stands N, has a circular groove, a. Track, M, has a notch, m, with a beveled face, m, leading onto the face of the disk, N, has a notch, n7, beveled so as to lead into the The notch, m, is situated at a which in turn point such that the in, 6 will meet it at the end of the hour 'an the disk, N, is arranged the face of the disk, N, until it reaches the notch, M, which will carry it inward to the groove, n, when the cylinder will be shifted again to the left to carry the pins, d, to the left of the end of the arm, d, so that the cylinder will then revolve without either of the pins contacting the arms, d, or the pins, cc contacting the arms, a The number of pins, (Z, which contact the arm, d, there fore depends upon the relative position of the notch, n, to the notch, m. Since disk, N, makes one revolution in twelve hours, the distance of notch, "M, from the notch, m, it is seen, increases in direct proportion to the hours. Since pins, d, are kept in register with arms, cl, while pin, 5 moves upon the hour track, N, and since at the time, pin, 0 reaches notch, n said pin is directed into groove, n, and the cylinder is moved to the left, taking pin, (Z, to the left of arm, (1, it seen that the number of pins, 01, which strike arm, (1, at the hour, increase in direct proportion to the increase in the size of the numeral indicating the hour. When the cylinder is rotating to strike the hours, it is seen that the pins, 7, are to the left of finger,

P, so that they do not stop the rotation of the cylinder. This is accomplished by a pin, f", which is placed upon the cylinder, B, so as to be in the path of the finger, f when the cylinder, B, has been shifted to its extreme left hand position.

Cylinder, B, is carried back to its normal position to chime the quarters, by an arm, P, which contacts the end of the shaft, 5, is pivoted at p, to the face, A, and has its lower end, 29, adjacent the face of a gear wheel, R, which is in gear with the hour wheel, h, and which carries a pin, 1", so arranged upon the wheel, R, that it contacts the end, p, between the hour and the first quarter, actuates the arm, P, to move the cylinder, B, back to its normal position, when the pin, 6 will be carried back by spring, 6 to contact the track, M.

The operation is as follows Suppose that the clock has just struck twelve and the cylinder has been shifted back to its normal po sition so that the pin, 5 is contacting the track, M, just beyond the notch m, and the notch, M, in the disk, N, has passed the notch, m. The cylinder, B, will then be staof the arms, 0 I is reached, one of the pins, h, wil strike the finger, g, raise the lever, G, release the pin,

6 and allow the lockin wheel, E, to be rotated, thereby causing t e cylinder, B, to rotate through a fraction of the circle and to chime the first quarter. After this quarter has chimed, one of the pins, f, contacts the finger, f raises the lever, F, releases it from the arm, K, and permits the finger, f, to drop down into the path of and to contact the next in, e and to stop the rotation of the cylin er. The rotation of the cylinder, B, carries the pin, f away from the finger, f and causes the in to be disengaged from thefinger. When alf-past twelve is reached, the next pin, it, will raise the lever, G, releasing the train, and permitting the cylinder, B, to revolve through another fraction of a circle and chime the second quarter. At the third quarter, the operation will be repeated. When the fourth quarter is reached, one of the pins, h, raises the lever, F, and the chimes for the fourth quarter are given by another fractional rotation of the cylinder, B. Cylinder, B, has then by the four fractional rotations completed one full rotation but the pin, f does not stop the rotation of the cylinder as did the pins, for the reason that it stands to the right of the arms, f until after the cylinder, B, has been shifted to the left. Therefore, after the fourth quarter has been chimed, the cylinder continues to rotate, the pin, 6 passes in to the face of the disk, N, and travels upon it until it reaches the notch, n when it will pass into the groove, n, and move in that groove until the pin, f, has reached the finger, f in whose path pin, f therefore will now stand because of the shifting of the cylinder, B to the left. The pin, f will then strike the finger, f raise the lever, F, and allow it to drop and to stop the cylinder, B. The pin, 1', then between the hour and the first uarter, strikes the arm, P, and carries the cy inder to the ri ht back to its normal position. The clocI: may be silenced by moving blocks, 0 and d, to the right, to bring the ends of arms, 0, and d, out of the path of the ins upon cylinder, B. The movement of tfie blocks is effected by moving levers, S, and T. When the blocks, 0 and (Z are moved back to their normal position, it is unnecessary to set the parts to obtain the proper chiming, because the cylinder has continued to move as though the hammers were set for striking.

That I claim is:

1. In a clock the combination of devices for sounding the fractions of the hours and devices for sounding the hours, a cylinder having pins adapted for actuating the devices for sounding the fractions of the hour and a second set of pins for actuatin the hour sounding devices, the second set of pins being out of register with the hour sounding devices when the first set registers with the fractional devices and vice versa, means for rotating the cylinder, means for shifting the cylinder to effect the registering of the pins and the aforesaid sounding devices, an hour track and a minute track at the end of the cylinder, a contact device carried by the cylinder for contacting the tracks, an automatic means for moving the contact device to the hour track to cause the cylinder to shift at the hour, and means for shifting the cylinder back after the hour.

2. In a clock having minute striking devices the combination of a cylinder, pins upon the cylinder for actuating said striking devices, a rotating shaft, means for rotating the shaft, a train of gears connecting the rotating shaft and the cylinder to convey rotation to the cylinder, a locking lever for engaging one of said gears to stop the movement of the train, means for raising the looking lever at certain intervals for releasing the train, an arm extending from the locking lever to the cylinder and devices carried by the cylinder for engaging the arm and re-setting the lever in position to lock the train.

3. In a clock the combination of a set of bells, hammers for striking the bells, a block mounted adjacent to the bells, means for re ciprocating the block, arms pivoted upon the block, means for connecting the arms and the hammers, a cylinder having pins to register with the ends of the arms whereby the block may be reciprocated to carry the arms out of registry with the pins.

4. In a clock the combination of a time movement, a minute sounding device, an hour sounding device, a cylinder having pins adapted to actuate the minute sounding device and a second set of pins to actuate the hour sounding device, the second set of pins being out of register with the hour sounding device when the first set registers with the minute sounding de vice and vice versa, means for rotating the cylinder, a movable contact device at one end of the cylinder, a stationary ring constituting the minute track at one end of the cylinder, a rotatable disk within the ring constituting the hour track and having a groove within the hour track, the minute track having a way upon it for guiding the contact device onto the hour track and a way u on the hour track for guiding the contact evice into the groove, a means for exerting a force upon the cylinder tending to move it toward the stationary ring and means for connecting the disk to the time movement of the clock.

EDWARD F. HERSCHEDE.

Witnesses:

WALTER F. MURRAY, AGNES MoCoRMAcK.

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