US1865743A - Combined clock and burglar alarm - Google Patents

Description

y 5, 1932- J. M. CODY ET AL 1,365,743

COMBINED CLOCK AND BURGLAR ALARM Filed Aug. 24, 1951 42 5 3mm, I damesMCoa'y Y John Efihodes 4 o Patented July 5, 1932 UNETED STATES PATENT OFFICE J'All/IES M. CODY AND JOHN E. RHODES, OF SEATTLE, WASHINGTON COMBINED CLOCK AND BURGLAR ALARM Application filed August 24, 1931. Serial No. 558,982.

Ourinvention relates to a combined burglar alarm and alarm clock, and is particularly an improvement on the patent to James M. Cody, No. 1,675,878.

Q It is an object of our present invention to devise a mechanism which can be employed as a burglar alarm, attached to a door knob or connected to be moved by the opening of a window or the like, which can also function in a normal manner as an alarm clock, whether or not it is arranged to'function at the same time as a burglar alarm.

It is an object, then, to combine in one mechanism of simple construction an ordinary household alarm clock and a burglar alarm of the type indicated, without detracting from the efficiency of either.

Our invention comprises the novel parts and novel combination and arrangement thereof as shown in the accompanying drawing, described in the specification, and as will be more particularly defined by the claims. In the accompanying drawing we have shown our invention in the form which is at present preferred by us.

Figure 1 is a face view of our device. Figure 2 is a side elevation of the device with parts broken away and shown in section. Figure 3 is a detail front elevation, parts of the clock casing and face being removed.

Figures 4, 5 and 6 are detail sectional views substantially on the line 5-5 of Figure 3.

Our burglar alarm may be associated with alarm clocks of varying types, and that illustrated, and which will now be described, will be understood as representative of any suitable alarm clock. It comprises the casing 1, the base 10, the time mechanism, including a gear 11, and alarm mechanism which will be described in detail hereafter. The casing 1 may serve as a bell, or another bell may be employed, as indicated at 29.

Associated with the bell, whatever form it may take, is a striker 28, the arm 2 of which is pivoted at 20 within the casing, and has escapement dogs 21 and 22 cooperating with the escapement wheel 23. This wheel is arranged to be rotated by the spring (mot shown), and as a means for turning off the alarm this wheel may have a pin 24, which may be engaged by the pin 25 controlled by the handle 26, so that the alarm may be turned off at will after it has begun to strike.

To initiate striking of the alarm, the alarm mechanism includes a time controlled wheel as 3, connected for instance by a pinion 31 to the time wheel 11 previously referred to. This pinion is rotatable upon and movable axially of the shaft 32. This shaft carries a radially projecting pin 33, which is engageable within a notch 34 within the hub of the wheel 3. The spring arm 4 secured in the frame 14 engages theopposite end of the wheel 3, and normally tends to hold the notch 34 astride of the pin 33. This position is shown in Figure 4. The'pin 33 may be displaced therefrom by rotation of the shaft 32 to set the alarm to go off at a definite time, for upon the wheel 3 rotating, the pin with the wheel 3 is released for axial movement of the wheel 3 under the influence of the spring arm 4. This mechanism is old in alarm devices and by itself forms no part of the present invention;

The spring arm 4 carries a dog 42 at its free end, which, when the parts are in the position'of Figure 4that is to say, when the alarm is released for strikingdoes not engage the striker arm 2. When the parts are in the position shown in Figure 5, however, the dog 42 engages behind the striker arm 2 and prevents vibration of the latter. This latter position corresponds to the position of parts when the alarm is shortly to be sounded.

According to our invention, the finger 5 is adapted to engage the spring arm 4, this finger having an inclined tip 54 for this purpose, so that it may lift the dog 42 and disengage it upon occasion from the striker arm 2, thus permitting the alarm to be sounded. As a means for moving the finger 5, various devices may be arranged. We have employed an oscillatory shaft 6 supported in the casing 1, or in an extension 16 thereof, and having fingers and 61, by means of which itmay be secured toa door knob K or alike member. By this means the entire casing. and combined parts may be suspended from a door knob, hanging pendant from the mem- 5, resting upon a ledge 15.

be depressed and its inclined tip 54 to raise the spring arm 4, thus setting off the alarm.

The time-controlled alarm may function normally even though the clock be positioned upon the door knob ready for operation as a burglar alarm. The alarm may be turned off by depressing the handle and the pin to intercept the pin 24. The user thus has a clock for telling time, an alarm to awaken him at a given hour, and a burglar alarm.

The base may be connected by a cord or string S to window sashes or like closures, so that upon movement of the sash the casing will be oscillated with respect to the fingers and 61, thus effecting release of the striker 2 and the sounding of the alarm.

hat we claim as our invention is:

1. In combination, in a clock, alarm mechanism including a vibratory striker and means to prevent vibration of said striker,

"x; a member supported in the clock and adapted to be oscillated in either direction from a normal position upon entrance of a burglar, and means to move said first means from operative position, thereby to allow vibration of the striker, upon oscillation ofsaid member in either direction.

2. In combination with a clock, alarm mechanism associated therewith and including a vibratory striker, a dog to prevent vibration of said striker, and a flexible arm supporting said dog, a shaft'supported for oscillation in the clock, means to secure said shaft to adoor knob or the like, to be oscillated upon turning the knob, and means movable. upon oscillation of said shaft to flex the flexible arm and to remove the dog from operative position, thereby to allow vibration of the striker.

3. In combination with a clock, alarm mechanism associated therewith and including a vibratory striker, a dog to prevent vibration of said striker, and a flexible arm supporting said dog, a shaft supported for oscillation in the clock, means to secure said shaft to a door knob or the like, to be oscillated upon turning the knob, means movable upon oscillation of said shaft to flex the flexible arm and to remove the dog from operative position, thereby to allow vibration of the striker, and other means manually operable to prevent or permit vibration of the striker.

4:. In combination with a clock, alarm mechanism associated therewith and including a vibratory striker, a rotary escapement wheel and dogs on the striker cooperating therewith to vibrate the striker, a time-controlled wheel, a shaft upon which said wheel is journaled and along which it is axially movable, a spring arm having a dog adapted to intercept the striker and prevent its vibration, said spring arm when not engaged with the striker, holding said time-controlled wheel towards one end of its shaft, means upon said shaft and cooperating cam means upon said wheel for moving the wheel in opposition tothe spring towards the other end of the shaft, thereby to position the dog tointercept the striker, an oscillatory shaft supported in the clock and adapted to be secured upon a door knob or the like to support the clock pendant therefrom, and a finger having an inclined tip adapted for engagement beneath the spring arm to lift the dog from engagement with the striker, said finger being operatively connected to said oscillatory shaft to engage the spring arm upon movement of the said shaft in either direction.

Signed at Seattle, King County, Wash ington, this 18th day of August, 1931.

JAMES M. CODY. JOHN E. RHODES.

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