US840256A - Thermostatic apparatus. - Google Patents

Description

No. 840,256. PATENTED JAN. 1, 1907. K. HOSTEL. THERMOSTATIG APPARATUS.

'APPLICATION FILED MAE. 30,1906.

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K ROSTEL THERMOSTATIC APPARATUS.

APPIIGATION FILED MAB so 1906 JZEWJ/ l; l'

nefffe NTED STATES Pagani* orinon.

KARL HOSTEL, OF MONESSEN, PENNSYLVANIA.

THERMOSTATIC APPARATUS.

Specification of Letters Patent.

Patented Jan. 1, 1907.

Application filed March 30, 1906. Serial No, 308,936.

To a/ZZ whom, t may concern: i

Be it known that l, KARL RosTEL, a subject of the Emperor of Germanyresidingm Monessen, in the county of Westmoreland and State of Pennsylvania, have invented certain new and useful Improvements in Thermostatic Apparatus, of which the following is a specification, reference being had therein Y to the accompanying drawings.

This invention relates to certain new and useful improvements in thermostatic alarms; and the invent-ion has for its primary object the provision of novel means for automatically sounding an alarm when a predetermined temperature is reached within a compartment .or room.

My invention aims to provide a novel thermostatic apparatus particularly adapted for use iii compartments or buildings where high thermal conditions might endanger the lives of persons within the compartment or building. In this connection the' apparatus is intended for use in laboratories and the like places, but may also be used similar to an ordinary thermometer. To this end l have devised positive and reliable means for sounding an alarm of an audible nature when a predetermined temperature is reached within a compartment.

Vith the above and other objects in view, which will more readily appear as the nature of the invention is more readily understood, the same consists in the novel construction, combination, and arrangement of parts, to be hereinafter more fully described and then y specifically claimed.

Referring to the drawings accompanying this application`V like numerals of reference designate similar parts throughout the several views of the drawings, in which`- Figure 1 is a front elevation of my improved. apparatus, a portion of the same being broken away to more clearly illustrate the interior mechanism thereof. Fig. 2 is a vertical sectional view of the same; Fig. 3, a plan Fig. 4, a horizontal sectional view taken on the li ne XX of Fig. 2 Fig. 5, a side elevation of a float used in connection with the apparatus, and Fig. 6 is a detail view of a portion of the apparatus.

To put my invention into practice, l cor,.- struct my improved apparatus of a suitable casing 1, embodying a base 2, front wall 3, rear wall 4, side walls 5 and 6, and a top plate and cover 7. Upon the base 2, within the casing 1, l mount a tank or receptacle 8, carrying an upwardly-extending trough or basin 9. The tank 8 is also provided with an upwardly-extending pipe 10, which supports the contracted neck or tubular portion 11 of an oval-shaped bot-tlvy or receptacle 12, which extends through the top plate 7 of the casing and is supported in an inverted position thereby.

The top plate or cover 7 directly above the trough or basin 9 is provided with an opening 14, the one edge of which is slotted, as at 15, to accommodate an upwardly-extending plate 16, carrying brackets 17 17. The outer ends of the brackets 17 17 are provided with o enings 18 18 to receive a standard or ro 19, carried by a float 20, mounted in the trough or basin 9. The iioat is of the same area in cross-section as the trough. or basin 9, and said float is supported in the trough by oil or a similar liquid 21, which extends up into the Abottle or receptacle 12.

lexpose a dial-plate 24, mounted directly behind the front wall 3 of the casing 1.V Supported by a standard 25 within the casing 1 is a rectangular frame 26, in which are journaled two shafts 27 and 28. Upon the shaft 27 is mounted a large pinion 29, adapted to mesh with a small pinion 30, mounted upon the shaft 28. The shaft 27 is provided with an outwardly-extending crank-arm 31, said crank-arm being connected, as at 32, to the depending )ortion 33 of the standard or rod 19. The s aft 28 extends through the dialplate 24 and is provided with a hand or iinger 83. The standard 25 is provided with an' upwardly-extending stub-shaft 34, upon which is pivoted a hand or finger 35, the object of which will presently appear.

In the casing 1 is placed a conventional form of storage battery or dry battery 36, while upon the exterior of the casing, preferably one of the side walls thereof, is placed a conventional form of electric bell 37, the one binding-post 38 of which is connected to one of the poles of the battery 36 by a wire 39, while the binding-post 4() of the bell is connected to the stub-shaft 34 of the standard 25 by a wire 41. The opposite pole of the battery 36 is connected by a wire 42 with the frame 26, said frame being suitably in- IOO sulated from the stub-shaft 34 by constructing the standard 25 of well-seasoned wood. By the hand or iinger 33 contacting with the hand or finger 35 an electrical circuit is completed which rings the bell 37.

By referring to Fig. 1 of the drawings it will be observedv that the dial-plate 22 is graduated similar to a thermometer, and when my improved apparatus is in operation the hand or iinger 33 is adapted to designate the temperature of the compartment or room in which the apparatus is located. This is accomplished by the expansion and contraction of the air within the bottle or receptacle 12, the expansion of the air tending to depress the oil or liquid contained therein and elevate the float 20, which, through the medium of the standard or rod 19 and the crank-arm 31, partially rotates the shafts 27 and 28 and positions the inger or hand 33 correctly at the number of degrees of temvperature indicated upon the dial-plate 22.

Assuming that the temperature of a room or compartment is to be maintained below a certain number of degreesw-for instance, ninety degrees-the hand or finger 35 would be set at the graduation 90. Should the air withinthe receptacle or bottle 12 expand sufliciently, the hand or finger 33 will be moved around to engage the hand or finger 35, completing an electrical circuit which will cause an alarm to be sounded, indicating that the compartment or room in which the apparatus is located has reached ythe teinperature for which. the apparatus wasl set.

It will be ap' arent from the foregoing del scri ption that have devised a simple and inexpensive apparatus which can be conveniently used for numerousv purposes notherein speciiied. Therefore I desire it to'be under# stood that I may employ the apparatus for various purposes, and while I have `herein .described `the preferred form of construction it is obvious that such changes as are permissible'by'the appended claims may be resorted to without departingfrom 'the spirit and scope of the invention.

The alarm-'bell 37 need not `be necessarily' located uponthe apparatus, as the bell may 'beplaced in another compartment from that :in whichthe apparatus is'located, and one bellmay readily serve as an alarm for a plurality of apparatus.

What I claim, and desire rto secure by Letters Patent, is-

1. In an apparatus of the type described, thecombination with a suitable casing, of a tank mounted in said casing, a trough communicating with said tank, a receptacle mounted in the top of said casing and communicating With said tank, a iioat mounted in said trough and actuated by the eXpansion and contraction of the air within said receptacle, a dial-plate mounted in said casing and having graduations arranged thereon, a hand carried in front of said dial-plate and actuated by said float, a hand adapted to cont act with the first-named hand, to sound an alarm, substantially as described.

2. A thermostatic alarm comprising a casing having a graduated dial-plate, a tank mounted in the casing, a trough mounted on said tank and in communication therewith, brackets carried by the casing, a float arranged in the trough and having a rod eX- tending through said brackets, a receptacle mounted on the casing and having a neck eX- tending into he casing and communicating with 'the tank, a standard mounted in the casing, a frame connected to said standard, shafts, journaled in said yframe and meshing pinions on said shafts, anarm connected to one of said shafts and attachedat its outer end to the rod of said float,- and hands carried by the other ends of said shafts adapted in one position. to complete an electrical circuit and sound an alarm.

3. In an apparatus of thetype described, the combinaticn witha suitable casing, and a tank therein, a trough communicating with the tank, a receptacle .mounted on the casing and having a neck extending into the casing and communicating with-thetank, a iioat in said trough actuated bythe eXpansion and contraction of air within'the receptacle, a graduated dial-plate carried by the casing and mechanism actuated by the float in its rise and lfallin the troughfor completing an electrical circuit to sound an alarm.

In testimony whereof 'I afliX my signature in the 'presence of two witnesses.

KARL HOSTEL.

I/Vitnesses:

- H. C. GATTER,

FRANK 'BUMEIL TOO

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