US730420A - Watchman's clock. - Google Patents

Description

PATENTED JUNE 9, 1903.

A. E; WAGGONER. WATOHMANS CLOCK. APPLICATION PIZIED AUG. 13, 1902- 10 MODEL.

AV/M

3] Ellmcoxg Patented (fans 9, 1903.

PATENT OFFICE.

ALBERT E. XVAGGONER, OF GRAND RAPIDS, MICHIGAN.

WATCHMANS CLOCK.

SPECIFICATION forming part of Letters Patent No. 730,420, dated June 9, 1903.

Application filed August 13, 1902. Serial No. 119,462. (No model.)

To ctZZ whom it may concern.-

Be itknown that I, ALBERT E. WAGGONER, a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and usefulImprovements in Watchmens Clocks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in watchmens clocks, and more particularly to such clocks provided with electric recording or alarm mechanism, or both; and its object is to provide mechanism that will not interfere with the movement of the record or damage the same and that will make a continuous record or sound a continuous alarm, or both, during all the time that the circuit may be closed and to provide the device with certain new and useful features hereinafter more fully described, and particularly pointed out in the claims.

My invention consists, essentially, of a device comprisinga vibrating hammer or striker for making the record, operated by an electromagnet, and means in the nature of a rheotome for repeatedly breaking and closing the exciting-circuit of said magnet whenever said circuit is otherwise closed in any way whatever and in the combination and arrangement of parts, as hereinafter more fully described, reference being had to the accompanying drawings, in which Figure l is a front elevation of a device embodying my invention with parts broken away to show the construction. Fig. 2 is a side elevation of the same, partially in vertical section; and Fig. 3, a detail in plan view of one of the electrically-operated recording devices and portions of the adjacent parts, shown partially in horizontal section.

Like letters refer to like parts in all of the figures.

A represents any suitable case in which the device is mounted.

B represents the shaft of any suitable clock, preferably the hour-hand shaft, adapted to rotate once in twelve hours. On this shaft and rotating therewith is a wheel B, provided with means for attaching the record 0 thereto, which record consists of a disk of the shaft and wheel.

paper or other suitable material rotating with This record extends and moves freely between a post I at one side of the record and a plate I at the other side of'the same, whereby the record is guided and held from displacement. The post I is provided with a recess 1 opposite each striker J, and the plate I" is provided with a slot or openings through which the strikers engage the record, as hereinafter described. The strikers J are made pointed to extend into the recesses I, and thus indent or perforate the record, preferably to indent without perforating, and each striker is mounted on one end of a resilient vibrating arm J and is normally near and out of contact with the record. Each arm J is pivoted at the end opposite the striker and yieldingly held in normal position by a spring P, or said arm may be flexible and fixed at this end. This arm is also provided with an armature L, or, if preferred, the arm itself may constitute the armature.

K represents an electromagnet, which preferably is arranged to draw the striker away from the record when said magnet is excited by an electric current, which current is conveyed to the coil of the magnet by a conductor N, having a terminal L engaging the arm J and holding the same, so that the striker is normally out of contact with the record. The electric circuit is through said arm and the wire N and thence through the coils and the return-conductor or groundwire 0. H represents any convenient number of these striker-operating means, each having a line-Wire M and return or ground wire 0, forming a circuitpconnecting it with a suitable circuit-closer located at a separate station and adapted to manually close the circuit to operate the particular recording means. These circuits are operated by any suitable battery or other source of electric current. These circuits and closers are not shown entire, because they are of the usual and well-known construction. I also provide an alarm-circuit, and for this purpose an arm 0 is adj ustably attached to the shaft B and normally moved therewith, but when held from so moving will permit the shaft to rotate.

G is a terminal in any convenient alarmcircuit, and when engaged by the arm 0 the circuit is closed and an alarm is sounded or a record made, or both, as most convenient. I prefer to connect this circuit to an alarmbell at some distant station to automatically sound said hell whenever the watchman fails to set back the arm 0 in time, as hereinafter described. To prevent such alarm, the arm C must be periodically adjusted on the shaft B, for which purpose a pivoted lever D is provided, having a lateral projection D to engage and move the arm 0. This lever is operated by a push-button E to move the arm 0 and is returned to place by a spring E.

F is a stop to limit the movement of the lever D, which stop is preferably connected to one of the recording means shown, and when said lever D contacts this stop a circuit is formed through the arm, lever, and stop and the recorder operated to indicate the time when the arm 0 was set back.

G is another terminal, which engages the wheel Q and connects the clock in circuit with the battery or any other source of electric current to operate the various recorders and alarms or such of the same as is desired to cut out. This wheel is connected to the clock preferably by gearing so proportioned that the said wheel rot-ates once in twentyfour hours. Such portion or portions of this wheel Q as would otherwise contact the terminal G during such portion or portions of the day as the described alarm is desired to be inoperative, is cut away or removed, as shown at Q, such time preferably being during the day-hours when a night watchman would not be on duty, the device shown thus being operative during a portion of the time without further attention.

The operation of my device is as follows: When a circuit is closed, the magnet K in that circuit is excited and the striker drawn away from the record. This automatically breaks the circuit byseparating the terminal L and the arm J. This releases the striker, and it rebounds against the record. This again closes the circuit and repeats the operation, resulting in a rapid vibration of the striker and a rapid series of blows. This These repeated blows sound an alarm on the post I and also make a continuous record on the paper 0 should the circuit he accidentally or purposely closed; otherwise the same results follow, and should the magnet become permanently excited in any way the striker would be drawn away from the record and held without obstructing or injuring the latter.

Having thus fully described my invention, What I claim, and desire to secure by Letters Patent, is-

1. The combination of a clock, a record moved by the clock, a striker normally out of contact with the record, an electromagnet to operate the striker, and means for repeat edly and automatically magnetizing and demagnetizing the magnet when the excitingcircuit of the magnet is closed.

2. The combination of a clock, a record moved by the clock, a striker to engage the record, an electromagnet to move the striker away from the record, a spring to move the striker toward the record, and a rheotome in the exciting-circuit of the magnet to automatically make and break said circuit.

3. The combination of a clock, a record moved by the clock, a post at one side of the record, a striker normally out of contact with the record and opposite the post, an electromagnet to move the striker away from the] record, and a spring to move the striker into contact with the record and post, and a rheotome in the exciting-circuit of the magnet whereby a continuous alarm is sounded, and a continuous record made during all the time the said circuit is closed and operative.

4. The combination of a clock, a record moved by the clock, a striker to engage and indent the record, a resilient arm supporting the striker, and in the exciting-circuit of the magnet, a terminal also in said circuit and engaging the arm to make and break the circuit, and to normally hold the striker out of contact with the record.

In testimony whereof I affi'x my signature in presence of two witnesses.

ALBERT E. V AGGONER.

Witnesses:

LUTHER V. ll/IOULTON, PALMER A. J ONES.

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