US1219814A

US1219814A - Incubator-alarm.

Info

Publication number: US1219814A
Application number: US7230916A
Authority: US
Inventors: Herschel V Flickinger
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-01-15
Filing date: 1916-01-15
Publication date: 1917-03-20
Anticipated expiration: 1934-03-20

Description

H. V. FLICKINGER.

INCUBATOR ALARM.

APPLICATION FILED 1AN`.15, 19,16.

1,21 9,8 1 4. Patented Mar. 20, 1917. y j' Q3] L? Y* fr I i f2 .lllllml HERSCHEL V. FLIGKINGER, OF BUCYRUS, OHIO.

INCUBATOR-ALARM.

Specification of Letters Patent.

Patented Mar. 20, 1917.

Application led January 15, 1916. Serial No. 72,309.

To all whom t may concern.'

Be it known that I, HnuscHnL V. FLICK- INGER, a citizen of the United States, residing at Bucyrus, in the county of Crawford and State of Ohio, have invented certain new and useful Improvements in Incubator- Alarms, of which the following is a specilication.

This invention contemplates an improved electrical alarm for incubators and has as its primary object to provide a device of this character which may be attached to any conventional type of incubator to cooperate with lthe damper vregulating lever thereof and adapted to sound at predetermined maximum and minimum temperatures within the incubator.

The invention has as a further object to provide a device of this character employing a contact carrying member having spaced contacts mounted thereon adapted to selectively coperate with the damper regulating lever of the incubator for sounding the alarm and wherein the said member will be bodily movable to simultaneously adjust the said contact members relative to the said lever for regulating the instant of contact therebetween and consequently controlling the sounding of the alarm at various predetermined maximum and minimum temperatures respectively within the incubator.

A further object of the invention is to provide an arrangement wherein each of the said contact members may be independently adjusted upon the contact carrying member and thus further regulate the instant of contact between the damper regulating lever and the said contact members.

The invention has as a further object to provide a device of this character wherein the contact carrying member will be bodily adjustable to a position with the contact members thereof disposed in inoperative relation to the regulating lever of the incubator to thus, in effect, provide a switch for rendering the alarm inoperative.

And the invention has as a still further object to provide a device of this character having means for holding the contact carrying member at adjustment relative to the throw of the regulating1 lever of the incubator and to also provide means for holding the said member at adjustment with the contact members thereof in operative or inoperative position with relation to the said lever.

Other and incidental objects will appear as the description proceeds and in the drawings wherein I have illustrated the preferred embodiment of the invention and wherein similar reference characters designate corresponding parts throughout the several views,

Figure 1 is a front elevation of my improved alarm showing the device applied to a conventional type of incubator, the body of which is shown in section,

Fig. 2 is a fragmentary view showing the contact carrying member of the alarm swung to a position with the contacts thereof disposed in inoperative relation relative to the regulating lever of the incubator,

Fig. 3 is a sectional view more particularly showing the construction and mounting of the contact carrying members, this view being taken on the line 3-3 of Fig. 1.

In order that the mounting and operation of my improved alarm may be clearly brought out, I have, in the drawings, shown my improved device in connection with a conventional type of incubator 10, upon which is pivotally mounted a damper regulating lever 11. The lever 11 is controlled by a thermostat 12 in the usual manner and is provided, at its free extremity, with a damper 13 adapted to fit over the upper end Y of the lamp liuc 1&1-,

In carrying out my invention, I employ a bracket or post 15 which is provided with a suitable base secured by screws or in any other convenient manner to one side of the incubator 10 adjacent the flue 14C with the said post projecting upwardly upon one side of the free extremity of the damper regulating lever 11. lAdjustably mounted upon the post 15 is a sleeve or collar 16 held at adjustment upon the post by a set screw 17.

Detachably connected to the post 15 is a contact carrying member which includes a bar or plate 1S to which is secured at a point intermediate its ends, a laterally projeeting binding post 19. The post 19 is apertured to freely receive the post 15 with the post 19 seating against the collar 1G to support the contact member vertically of the post 15. The post 19 is provided with a set screw 20 operable to engage the post 15 for holding the contact carrying member fixed thereon.

Secured to the plate 18 upon opposite sides of the post 19, are similar

binding posts

21 and 22 respectively which project laterplete the circuit.

ally from the said plate in a direction opposite to the post 19.

rhe posts

21 and 22 are apertured to adjustably receive the

contact members

23 and 24 respectively and are provided with set

screws

25 and 26 respectively, for holding the said contacts at adjustment. The

contact members

23 and 24, at their inner extremities are provided with iaterallv directed terminals 27 and 2S respectively and are each preferably formed from a length of wire or other suitable material.

It will now be observed that the contact carrying member is supported upon the bracket 15 in a vertical position with respect to the outer' extremity of the damper regulating lever 11 vwith the free end of the said lever adapted to be received between the terminals 2T and 23, of the

contacts

23 and 24, as more particularly shown in Fig. 3. Detachably connected in any suitable manner, to the inner extremity of the regulating lever 11 is a wire 29 which leads to a battery or other suitable conveniently located source of electrical energy. Leading from the bat tery is a wirel 30 which is connected to one terminal of a suitable alarm 31 and leadingfrom the other terminal of the alarm is a wire 32 which is detachably connected in any suitable manner preferably to the lower extremity of the plate 13 of the contact carrying member as clearly shown in Fig. 2, a binding post 33 being preferably connected to the plate to receive the adjacent end of the saidwire.

Y V1t will now be seen that when the free extremity of the damper regulating lever' is moved upwardly to ventilate the incubator or reduce the temperature therein, the said lever is adapted to engage the terminal 27 of the contact member 23. Current will then iow from the battery through the wire 29, through the lever to the said contact member whence it will return through the wire 32 to the alarm 31 and through the said alarm and the wire 30 to the battery to com- Consequently the alarm will be automatically sounded at such time as the temperature of the incubator reaches a maximum sufiicient to cause the regulating lever to be raised. After the lever has been so raised and the temperature within the incubator is reduced, the free'V extremity of the damper regulating lever will move toward the flue 14 to close the rsaid flue by the damper 13 and is adaptedto engage the terminal 28 of theV contact 24. Current will then iiow from the battery through the wire 29 and through the said lever to the contact member' 24, and will thence return through the wire 32 to the alarm 31 and through the said alarm and the wire 30 to the battery to complete the circuit. Consequently, the alarm will be automatically sounded at such time asthe temperature within the incubator reaches a minimum sullicient to cause the free extremity of the regulating lever to drop. 1t will therefore be seen that 1 provide a very simple and eiicient construction for the purpose set forth, and a device which may be easily attached to and is adapted for 1G and attention is now directed to the fact that this collar is movable upon the bracket to bodily adjust the contact carrying member vertically of the said bracket and consequently, simultaneously adjust the instant of contact between the regulating lever 11 and each of the

contacts

23 and 24 for controlling the sounding of the alarm at various predetermined maximum and minimum temperatures respectively within the incubator. It will also be noted that the

contacts

23 and 24 may be independently adjusted relative to the regulating lever 11 by means of the set

screws

25 and 26 respectively for effecting this result, so that after the contact carrying member has been adjusted upon the bracket 15 in approximate coperative relation to the free extremity of the lever 11, the

contacts

23 and 24 may then be further positioned to delicately adjust the said contact members to coperate with the said lever at certain predetermined maximum and minimum temperaturesV respectively within the incubator.

Under certain conditions, it may be found desirable to render the alarm inoperative and for effecting this result, the contact carrying member is swung about the bracket 15 to dispose the

contacts

23 and 24 from operative position as shown in Fig. 3 to inoperative position upon one side of the damper regulating lever 11 as shown in Fig. 2. In this connection, it will be noted that the set screw 2O provides means for holding the contact carrying member at adjustment in either the operative position of

thecontacts

23 and 24 relative to the regulating lever 1l or in the inoperative position of the said contacts with respect to the said lever. The contact carrying member thus, in effect, provides a switch for rendering the alarm inoperative, and the means by Vwhich I effect this result is obviously simple and eflicient.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. The combination with' an incubator having a regulating lever, of a bracket carried by the incubator, a contact carrying member slidably connected with the bracket and arranged to swing thereon, spaced contacts carried by the said member to selectively coperate with the said lever for closing a circuit therethrough with the said contacts independently adjustable for varying the instant of contact thereof With the said lever, means for holding the said contacts at adjustment, a collar mounted upon the bracket and swingingly supporting said Contact carrying member With the said member adjustable to dispose the said contacts in inactive position With respect to the said lever, means for holding the said contact member at swinging adjustment, and means for adjusting the said collar upon the bracket to cooperate With the said Contact carrying member for simultaneously adjusting the said contacts with respect to the lever.

2. The combination with an incubator,- and an oscillating lever thereon, of a support carried by the incubator at one side of the plane of oscillation of said lever, a member slidable longitudinally and rotatable on said support, spaced contacts carried by said member and projecting laterally therefrom, means for adjusting the member longitudinally of the support, and means for holding said member in any position of rotatable adjustment whereby said contacts may be moved into or out of operative relation to said lever.

3. The combination with an incubator, and an oscillating lever thereon, of a support carried by the incubator at one side of the plane of oscillation of said lever, a mem ber slidable longitudinally and rotatable on said support, spaced contacts projecting laterally from said member and adjustable thereon toward and away from each other, means for adjusting the member longitudinally on the support, and means for holding said member at any position of rotatable adjustment whereby said contacts may be moved into or out of operative relation to said lever.

In testimony whereof I aiiX my signature.

HERSCHEL v. FLIGKINGER. [a s] Copies of this patent may be obtained for iive cents each, by addressing the Commissioner of Patents, Washington, D. C.