US1301011A - Thermostatic alarm. - Google Patents

Description

F. L. SCUUTTEN.

THEHMSTAH ALARM.

APPLmMlon msn ma. 19. 1915.

Patented Apr. 15, 1919.

UNITED sTATEs PATENT oEEIcE.

FLOYD L. SCOUTTEN, 0F EAST CLEVELAND, OHIO.

THERMOSTATIC ALARM.

Application led March 19, 1915.

To all whom t may concern.'

IBe it known that I, FLoYD L. ScoUTTEN, a citizen of the United States, residing at East Cleveland, in the county of Cuya hoga and State of Ohio, have invented a certain new and useful Improvement in Thermostatic Alarms, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates genera l to thermostatic alarms, and more particu arly to one adapted for application to the outlet flue of a furnace, for the purpose of giving an alarm in case this iiue should become over heated. It will be understood however, that the invention is also capable of other appli cations and uses.

The object of my invention is to provide a simple and eiiicient alarm device which can be readily applied to the exterior of a flue or pipe and which will, in case of excessive heat, close an electric circuit and sound an alarm bell; and another object of the invention is to provide a device which can be arranged and which will 4be thoroughly operative in either a horizontal, vertical, or inclined position, thereby providing a device which can be attached to a flue extending in any direction.

With these various objects in view, my invention consists in the novel features of construction and the manner of arrangin them, all of which will be fully described Iiereinafter and pointed out in the claims; and while I show and `describe one form of device for carrying out my inventive idea'ilt will be understood that certain variations or modifications can be made within the scope of the claims.

In the drawings forming a part of this specification Figure 1 is a perspective view showing the practical application of my invention, the cover being broken away, and Fig. 2 is a sectional view through the device and its cover taken at the expansion post.

In carrying out my invention I employ a base 1 of suitable material, such as asbestos board, said base being of such size and shape as to car all of the various arts of the alarm. '(Iiion the under side o the base 1, near one end thereof, is a plate 2 of heat conducting metal, such as copper, and connected to this plate and extending through the base is the post 3, also of heat conducting material, said post being tapered at its end and Specification of Letters Patent. Patented Apr, 15, 1919,

Serial No. 15,424.

providing a rest for the lever 4 which is pivoted to a bracket 5, attached to the base ad.- jacent the post 8, said lever carryin a contact 6 at its free end to which is attaied the usual construction of binding ost 6 for the connection 6b leading to an a arm bell (not shown).

Near the opposite end of the base l is another bracket 7, to which is attached an arm 8 carrying a contact 9 in the form of a spring and provided also with a binding post 9a from which leads the conductor wire 9b. lVorliing through the arm 8 and bearing on the contact 9, is an adjustin screw l0 by means of which the position o the contact 9 with reference to the contact 6 can be adjusted.

The alarm device constructed as above described is adapted to be arranged upon the exterior of an outlet pipe o-r flue of a fur nace, said pipe or flue being indicated at 11, and in order to quickly and securely fasten the alarm to said Hue or `pipe I employ a pair of clamping bands 12, which encircles the Hue or pipe and are preferably carried by the protecting cover 15; but it will be distinctly understood that the clamping bands can be arranged in any suitable manner, and, furthermore, that other forms of fastening means may be employed without departing from the spirit of my invention.

In operation the parts are arranged as shown, vwith the contact 6 beneath the contact 9 but spaced therefrom, the distance between the contacts being determined by the adjusting screw 10, b means of which the device can be adjuste to become operative at any desired temperature within certain limits, it being obvious that, as the temperature rises the post 3 will expand, and, operating upon the lever 4, will cause the contact 6 to engage the contact 9, close the circuit through 6b and 9b and ring the bell; also that, if the contacts are brought into very close relation, a'slight increase above the normal tempera-ture of the flue will cause the alarm to sound Whereas, by separating the contacts more or less a corresponding increase in temperature will be required to close the circuit and sound the alarm.

In order to adapt my alarm device for use upon vertical, as well as horizontal, pipes, I attach a weight 13 to the lever 4 by means of a rod or wire 14 which is bent so as to position the Weight adjacent the base as most clearly shown, the tendency thereof Abeing te maintain the lever in contact with the expansion post 3 whether the device be used in a horizontal pr vertical position or in any position intermediate therebetween.

When the alarm device is arranged horizontally or upon an incline, this 4Weight may not be necessary, but when the device is arranged vertically it then .becomes desirable if not neeessa and as this weight is not excessive I pre er to employ it in connection with the device in all positions of the device.

In order to protect the operative arts from dust, dirt and the like I rovi e an envelopin cover 15 of any suitab e material (such as ber) connected to the base in any suitable manner, this cover being broken away in Fig. 1 to show the parts therel within.

It Will thus be seen that I provide an eX ceedingly simple, inexpensive, and eliicient therinostatic alarm which will accomplish all of the objects hereinbefore referred to.

Having thus described my invention, what I claim 1s:-

1. An alarm device comprising a substantially non-conducting base, a conducting plate arranged upon the bottom thereof, an expansion member connected to the plate and projecting through the base, a lever resting upon said expansion member and carrying a contact near its free end, an adjustable contact arranged adjacent, but spaced from, the contact carried by the lever, said.. contacts constituting parts of an alarm circuit and means for connecting the device to a flue or pige. n

2. n alarm device eomprislng a substantially non-conducting base, a conducting `plate arranged beneath the same, an expansion member connected to the plate and projecting through the base, a lever pivotally connected with the base, nesting upon the expansion member and carrying a contact, a second contact spaced from the first contact, said contacts constituting parts of an alarm circuit, and means for connecting the device to a flue or pipe.

3. In an alarm device, the combination of a bracket, an expansion device adjacent to said bracket, a lever pivoted to said bracket and adapted to be engaged and supported by said expansion device at a point intermediate oi' its ends, said lever having a Contact adjacent to its free end, a contact coperating with the first mentioned contact, an arm projecting from said lever, beneath said lever, and a Weight on said arm adapted to maintain the latter in engagement with the expansion device in varying angular positions of said alarm device.

4. In an alarm device, the combination of a base, a bracket projecting upwardly from said base, an expansion post projecting upwardly from said base, a lever pivoted to said bracket and extending over said post and having a contact adjacent its free end, a Contact cooperating with the first mentioned contact, an arm connected to said lever and extending `between the same and the base, and a Weight on said arm.

5. In an alarm device, the combination of a bracket, an expansion member ad'acent to said bracket, a lever pivoted to sai bracket and extending over said member and having a contact adjacent its free end, a contact cooperating With the first mentioned contact, an arm connected 4to said lever and extending beneath the same, and a weight on said arm.

In testimony whereof, I hereunto aiiix my signature in the presence of two Witnesses.

FLYD L. SCOUTTEN.

Witnesses:

BRENNAN B. Wns'r, HUGH B. MCGILL.

Uopies of this patent may be obtained for ilve cents each, by addressing the Commissioner ot Patents, Washington, D. U.

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