US899220A - Automatic electric safety device for boilers, &c. - Google Patents

Description

c. KAUSBN. AUTOMATIC ELECTRIC SAFETY DEVICE FOB BOILEBS, bo.

APPLIOATIOIIILBD IAVE. 13, 1908. l

Patente@ sept. 22,19%

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l l l CHARLES KAUSEN,

PATENT oEEIoE.

OF NEW YORK, N. Y.

AUTOMATIC ELECTRIC SAFETY DEVICE FOR. BOILERS, &c.

vspcification of Letters Patent.

Patented Sept. 22, 1908.

Application led March 13. 1908. Serial No. 420,920.

To all whom it may concern.'

Be it known that I. CHARLES hAUsEN, a

`citizen of the United States of America, and

a resident of NewA York, borough of the Bronx, county and State of N ew York,' have invented certain new'and useful Improvements in Automatic Electric Safety Devices for Boilers7 &c., of which the following is a specification. I

M v invention has reference to improvements in automatic electric safety devices, particularly adapted to be applied to boilers.

It is the special object ofthis invention to produce a safety device which is actuated solely by the water and independent of steam. This makes the present device absolutely reliable in comparison to those heretofore employed in which a whistle is blown by steam because it may happen that practically no steam is in the boiler and when the water drops at such a moment there will be no signal.

T he novel safety device is applicable to anykind of boiler. lt is of sim )le construction and therefore not easily liable t0 derangement and cheaply manufactured.

The inventionfurther consists in the construction of the details and the arrangement of parts all as will be fully described further down in connect-ion with the accompanying drawing in which Figure 1 represents in elevation a wateractuated automatic electric safety device, attached to a. boiler, which embodies in desirable form the present improvements. Fig. 2 is a vertical section on line 2, 2 of Figs. 1 and 5 showing the device at high 0r normal water level. Fig. 3 is a like view showing the device at low or dangerous water level. Fig. 4 is an enlarged detail view in transverse section of an electric contact device on line 4 4 of Fig. 3, and Fig. is a horizontal sec: tion on line 5-5 of Figs. 1 and 2.

Similar characters of reference denote like parts in all the figures.

When the water in the boiler drops to a certain point the device operates an alarm bell which calls the attention of the enginecr, janitor, owner or person in charge of the place to the low water level in the boiler preventing thus that same drops to a dangerous point whereby the boiler and property in thev proximity of same as well as persons are kept out of danger.

In the drawing a. represents a vertical tubular receptacle preferably made of metal. The tubular receptacle a is formed on one which is preferably cast therewith in one piece. .'X'semi-circular hollow top part c is provided, which lits the top of t ie tubular cured thereto byscrews d. Both form va. housing for a wheel c mounted on a shaft f, which rests in the. bearings 1/ shown Yin Fig. 5. The wheel c has` three spokes, t, 71.*, h2. A hollow cylindrical float i is provided within the. tubular receptacle. lt is made of metal, preferably thin copper sheeting. A metal guiding rod j is rigid y connected to the central bottom portion of the float. lt eX- tends down into an iron pipe which connects the device with the boiler l.. A link consisting of two metal rods m is movably connected with its bottom end to the central'top portion of the float. It extends vertically up and is movablyseeured the spoke h2 of the wheel e.

In order t-o prevent the device from becoming air-bound, an automatic a'ir valve o is provided in the top portion of the cylindrical receptacle, a. Atube p at the top of the housing connects with the steam part of the boiler. The top portion c of the housing for the wheel e is provided with two electric contacts g, g., which are insulated therefrom, as shown inV detail in Fig. 4. The Wheel e likewise is provided with an insulated electric contact r. From the contacts g wires lead to an electric battery s and an alarm bell t.

The safety device operates in substanf tially the following manner: When there is sufficient water in the boiler the lioat fi is in about the position indicated-in Fig. 2; that is, in the top portion of the tubularl receptacle a.. Then the float rises the rod m nieves the wheel e from left to right viewing Figs. 2 and 3. ihen the water level drops the float sinks down accordingly and the rod m pulls the wheel from right to left until the contact -r on the spoke h of the wheel strikes against the contacts g, Q, as shown inl Figs. 3 and 4 whereby the circuit is closed and the alarm bell operated. Any person in charge or near is thus `:ware of danger and will care that the boiler is supplied with fresh water,

a will rise carrying again with it the'float which likewise carries upward the movable 'w'heieupon'tlie water level in the receptacle side of the top into a curved extension bf part and its extension and ispreferably sethe wheel e from left to right wherebj-v the circuitI is broken.

It is self-.evident that one electric alarm bell and bat-tery'may be used in connection with any number of boilers in one establishment..

Having thus described my invention l claim as new and desire to ,secure by Letters Pat-ent: v

1. A water actuated automatic electricI safety device for boilers comprising a vertical tubular receptacle with bottom pipe for connect-ing with the boiler formed on one side at the top into a curved extended portion, a semi-circular hollow top part secured to the top of the tubular receptacle and its extension both forming a housing, a wheel mounted within said housing, a cylindrical lloat within the tubular receptacle, al guidingl rod rigidly connected to its bottom central portion extending int'o the bottom pipe, a second rod movably secured with its lower end to the top central portion of said float and ,with the uppe'i` end to one spoke of the wheel, two electric contacts in the top portion of the semi-circular part of the housing insulated therefrom, an insulated electric contact in said wheel, an electric battery and an alarm bell.

.2. In a water actuated automatic electric safety device for boilers a vertical tubular receptacle with bott-0m pipefor connecting with the boiler formed on one side at the top into a curied extended portion, an air valve 1n the top portion of. the tubular part, a

l 2n ,Y 899,220

a' semi-circulai` hollow top part secured to the l top of the tubular receptacle and its exteng sion both formingr a housing, a wheel mountedwithin said housing, a cylindrical lloat j within the tubular receptacle, a guiding rod rigidly connected to its bottom central porl tion extending into the bottom pi a second rod movably secured with its ower end to the top cent-ral portion of said float and with the upper end to one spoke of the wheel, two electric contacts in the-top portion of the semi-circula.' part of the housing insulated therefrom and an insulated electric contact in said Wheel.

3. ln a water actuated automatic electricsafety device for boilers a Vertical tubular receptacle with bottom pipe for connecting with the boiler formed on one side at the top into a curved exten-ded portion, an air Valve in t-he top portion of said tubular receptacle, a. semi-circular hollow part securedto Said tubular receptacle and its entension both forming a housing, and a pipe at the top of said semi-circular part. for connecting with i the steam part of the boiler in combination with a wheel mounted in the housing, a float within `the tubular receptacle and a metal rod inovably secured with the bottom end to the central top portion of the float, and

its top end to one spoke of the wheel.

Signed at New York, N. Y., this 25th day i of February, 1908. CHARLES KAUSEN.

l Witnesses l LUDWIG K. BHM, v l MARGUERITE L DEINZER;

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