An electric bellis an arrangement of a cylindrical soft iron core, or cores, surrounded by coils of insulated copper wire.
At one end of this iron core is an iron armature which is made to vibrate in precisely the same manner as the armature of an electric bell.
Illustration: Electric Bell] The connections are shown in the diagram (Fig.
What does happen is that an electric bell up in the apartment rings in response to your push of the button, and in reply the tenant pushes a button and the door is unlatched by an electro-magnet concealed in the door casing (Fig.
One of the first things the boy wants to make, and one which is also an interesting piece of work, is an electric bell.
The transmitter of the telephone is placed inside the helmet between the front and a side window, the receiver and the button of an electric bell in the crown.
The action of the hammer is precisely the same as that of the armature of an electric bell.
Then he glanced at the clock, touched an electric bell, and again unhooking the receiver of the telephone, called up the Sherwood Studios and asked for Mr. Carden.
To each binding post of an electric bell fasten a piece of insulated copper wire with bare ends and at least 4 feet long.
By means of your battery, make an electric bell ring.
Fasten one end of a copper wire to the zinc of the first cell and the other end of this wire to one binding post of an electric bell.
This form of electric bellis called a trembling bell, on account of its vibrating armature.
Even an electric bell or telegraph sounder may be considered a motor, giving motion straight forward and back.
If possible, examine the construction of an electric bell.
Test the current by means of the two latter and also with an electric bell.
The figure is hung from the neck by a blackened stiff wire attached to the hammer wire of an electric bell, from which the gong has been removed.
Illustration: Electric Fire Alarm] At the house an electric bell is placed wherever convenient.
To cause a flow of electricity, lower the zinc until it almost touches the bottom of the jar and connect an electric bell or other electrical apparatus by means of wires to the two binding posts.
In the upper part of the jar, where the pressure of the air keeps back the water, there is a delicate needle contact in circuit with a battery and an electric bell or lamp, as the case may be, on the shore.
An outbreak of fire can be announced by causing the undue rise of temperature to melt a piece of tallow or fusible metal, and thus release a weight, which tails on a press-button, and closes the circuit of an electric bell.
From what has been said, it will be easy to understand how the stealthy entrance of burglars into a house can be announced by an electric bell or warning lamp.
After about a quarter-of-an-hour of these meditations, he moved slightly and touched an electric bell in the wall.
I will ascertain," he said in an almost cold voice, as he sounded an electric bell by his side.
He was wearing an overcoat and a derby hat, and was pressing an electric bell.
She pressed an electric bell, which rang continuously in the night watchman's room; but he had run to the front of the house and was unlocking the front door, where a squad of willing men soon awaited Winter's instructions.
The connections are the same as for an electric bell.
Illustration: An Electric Horn Operated in a Manner Similar to an Electric Bell on a Battery Circuit (Fig.
How true," she said in reference to some remark of Kolosoff's, touching the button of an electric bell by the side of her couch.
When one course was finished, the Countess pressed the button of an electric bell fitted to the table and the waiters stepped in noiselessly and quickly carried away the dishes, changed the plates, and brought in the next course.
An electric bell jarred in the engine-room, and the screw revolved, while the rattle of the steering chains showed that the helm was put hard a-port.
While the Baron was speaking he touched an electric bell.
Suppose we have an apparatus, as, for example, an electric bell, which we want to have ring when someone at a distance desires to call us.
A buzzer is, in construction, very similar to an electric bell; in fact, you will have a buzzer by removing the bell from any ordinary electric bell.
This may be used to tap against a regulating screw, or to fasten a hammer on for an electric bell.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "electric bell" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
