US802753A - Electric bell-ringer. - Google Patents

Description

PATENTED OGTLZLI, 1905.

I. Wl HALL. ELECTRIC BELL RINGEB..

APPLICATION FILED MAR. 21, 1904.

2 SHEETS-SHEET 1.

A TTOH'NE Y S.

No. 802,753. PATENTED OCT. 24, 1905. I. VV. HALL.

ELECTRIC BELL RINGER.

APPLICATION FILED MAR. Z1, 1904v A2 SHEETS-SHEET 2.

/A/ VEN TOR A Twig/ PATENT FFTlE.

IRA W. HALL, OF BROWNWGOD, TEXAS.

ELECTFZIIC BELL-RINGIEH.

Specification of Letters Patent.

Patented Oct. 24, 1905.

Application filed March 2l, 1904:. Serial No. 199,145.

To L7/Z whom, it may concern,.- v

Be it known that I, IRA W. HALL, a citizen of the United States, and a resident of Brownwood, in the county of Brown and State of Texas,have invented a new and Improved Electric Bell-Ringer, of which the following is a full, clear, and exact description.

My invention relates to electric bell-ringers, my more particular object being to produce a simple, reliable, and eflicient bell-ringer which may be operated either by electric wires from a distance or by merely pressing a pushbutton.

Reference is to be had to the accompanying drawings, forming a part of this speciiication, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is aside elevation showing my in! vention in use, certain parts being indicated in section. Fig. 2 is a fragmentary plan View of the motor mechanism. Fig. 3 is a section upon the line 3 3 of Fig. 2 looking in the direction of the arrow. Fig. 4 is a section upon the line 1 4L of Fig. 2 looking in the direction of the arrow, and Fig. 5 is a side elevation of the weight 4:1 and electric device for releasing the same.

A framework 1 is provided with horizontal sills 2 3 for supporting the several working parts. A bell is shown at 4 and is suspended in the usual manner. This bell may be of any size, but is preferably made large enough for use as a lire-alarm. Mounted within bearings 6 7 is a revoluble shaft 5, provided with a setcollar 8 and with a revoluble arm 9, this arm being preferably integral with a hub 10, as indicated more particularly in Fig. 2. Acylindrical weight 11, serving as a clapper for the bell, is provided with a central cylindrical space 12,whereby it fits loosely upon the pintle 14., being confined thereon by means of the disk 13, as indicated more particularly in Fig. 2. A counterweight is provided on the other end of the arm 9. A revolublc gear 16 is loosely mounted upon the shaft 5, and a Vratchet-pinion 17 is ixedly mounted upon the said shaft. A pawl 18 is mounted upon the gear 16 and is pressed against the ratchet-pinion 17 by means of a spring 19. A large gear 20 meshes with the gear 16, this gear being mounted upon a revoluble shaft 23, journaled in bearings 21 22, and rigidly mounted upon this shaft is a roller 24. A spring-brake 25 3. The pressure of the brake when pulled down is such as to restrain the pulley from rotating, and thereby to hold the shaft stationary. When tension upon the rope 28 is relaxed, however, the brake clears the wheel 30 and allows the shaft 5 to rotate. .Mounted rigidly upon the shaft 23 is a bevel-gear 31, revolving in a vertical plane, and this bevelgear meshes with another bevel-gear 32, revolving in a horizontal plane, said bevel-gear 32 being rigidly mounted upon a vertical shaft 34C, provided with a handle 35. Secured upon the roller 24 at a point 32ll is a cord 32", provided at its lower end with a heavy weight 33. By rotating the crank 35 the vertical shaft 34 and bevel-gear 32 are set in motion, thus causing the rotation of the bevel-gear 31 and roller 24, so as to wind up the weight The rotation of the shaft 23 causes the rotation of the gears 2O and 16, thc pawl 18 serving as a one-way clutch and allowing the gear 16 to turn freely in one direction, so as to allow the weight 33 to be readily wound up.

A number of trips 36 37, each having substantially the form of a bell-crank, areniounted upon pivots 38 and 39, the uppermost trip 36 being connected at Li() with the cord 28, these trips being actuated successively by the falling of a weight Z11, as hereinafter described.

l/Vhen the trip 36 is depressed to the position indicated by dotted lines in Fig'. 1, the cord 28, normally tight, is suddenly slackened. The trip 36 normally engages a pin 36, being drawn upward against said pin by the tension of the cord. When the trip 36 is actuated by the weight 4:1, said trip contacts with a pin 36" and the cord 28 is thrown into the posi' tion shown by the dotted line a in Fig. 1, thus allowing the cord 28 to pass tothe right of the pivot 38, after which the member 36 stops against the pin 36". This allows the spring-brake 25 to clear the friction-pulley 30,

thus releasing the motor mechanism above de scribed and allowing it to be propelled by the descent or' the weight 33.

The weight 41 is slidably mounted within guideways 42 and 43 and is provided on opposite sides with tongues 44 for engaging said g'uideways. The upper end of the weight is provided with a hook 45, whereby it may be suspended. Any desired number of additional trips 37 may be provided, each having a cord 37 attached thereto at 40a, which cord may be used `for actuating any other mechanism which may be employed for turning on electric lights, releasing horses, &c.

Mounted upon a horizontal beam 46 is a magnet 47 and a support 48, provided with a pivot 49. A trigger 50, provided with a lug 51, is pivotally mounted upon the pivot 49 and is free to swing', and an arch 52 is provided with a pivot 53, and upon this pivot is mounted an armature 54. The end of the trigger 50 is beveled, as shown in Fig'. 5, and is free to engage a notch 56 in the armature 54. The mag'net 47 is connected with a battery 57 by means of wires 58 59, and a pushbutton 60 is provided for the purpose of closing' the battery-circuit, and thereby energizing the magnet 47. The push-button 60 is normally open, as shown, and wires 61 62 are connected with electric line-wires running to a distance. These linewires may be ordinary telephone-wires, it' desired, so that the hre-alarm may be rung from the central station.

The operation of my device is as follows: The operator grasps the handle 35 and winds up the weight 33. The release of the pawl 18 allows the shaft 34, the gears 32 31, the roller 24, the shaft 23, and the gears 2O and 16 to revolve, the pawl 18 sliding backward upon the ratchet-pinion 17. The motion of the mechanism, due to the winding', does not, therefore, extend beyond the pawl 18, so that the bell 4 is not sounded while the weight 33 is being raised. During this time the springbrake 25 prevents the pulley 30 from rotating', and thereby prevents the clapper 11 from striking' the bell. rlhe apparatus is now ready to sound an alarm. If the magnet 47 be energized by means of the battery 57, which is accomplished either by pressing the push-button 60 or by energizing the line-wires 61 62, the armature 54 is drawn downward, the end 55 of the trigger 50is released from the notch 56, the trig'- g'er turns to the left from the position indicated in Fig. 5 and releases the weight 41, and the weight slides quickly downward, successively striking the several trips 36 37. The descent or' the first or uppermost trip 36 causes the release ot' the spring-brake 25 and starts the motor mechanism, thus causing the bell 4 to ring continuously until the motor-weight 33 reaches the ground or until the spring-brake 25 is again applied to the friction-wheel 3() by adjusting' the trip 36, the pins 36a and 36 scares serving as limitingstops for the trip 36. When the trip 36 is against the pin 36, the spring brake is off, and when said trip is against the pin 36 the brake is on. The rope 39 is employed for restoring the trip 36 to its normal position. (Indicated by full lines in Fig'. 1.) It will be understood that each time the motor starts up the arm 9 revolves, causing the clapper 11 to be thrown outward, thus virtually lengthening the arm and striking the bell.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. VAn electric bell-ringer, comprising' a trigger device, electric mechanism connected therewith for actuating' the same from a distance, a weight connected with said trigger device and normally suspended but free to fall when said trigger device is actuated, a

plurality of separate trips to be actuated successively by said weight in falling, alarm mechanism, motor mechanism for actuating the same, and mechanism to be actuated by said trips for starting said motor mechanism.

2. In an electric bell-ringcr,the combination of an alarm, mechanism for actuating the same, a plurality of separate trips connected with said mechanism, a weight for actuating said trips successively, and electric mechanism controllable at will from a distance for releasing said weight.

3. In an electric bellringer,the combination of alarm mechanism, motor mechanism for actuating the same, a brake for releasing' said motor mechanism, a trip connected with said brake, a weight for operating said trip, and electric mechanism controllable from a distance for releasing' said weight.

4. In an electric bell-ringer,the combination of a plurality of separate trips, a weight normally elevated but adapted to fall for the purpose of actuating said trips successively, and electrical mechanism controllable at will from a distance for releasing said weight.

5. An electric bell-ringer, comprising motor mechanism, brake mechanism connected with said motor mechanism for normally rendering the same inactive, striking' mechanism connected with said motor mechanism and actuated thereby, a sounding member to be struck by said striking mechanism so as to sound an alarm, a trip disposed a little distance from said brake mechanism, a iexible connection extending from said trip to said brake mechanism, and means controllable at will from a distance for actuating said trip, thereby releasing said brake.

6. An electric bell-ringer, comprising an alarm, motor mechanism for actuating the same, brake mechanism for normally restraining said motor mechanism, a trip connected with said brake mechanism for actuating' the same relatively to said motor mechanism, a weight normally elevated but adapted to fall,

IOO

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to this specification in the presence of two subscribing Witnesses.

IRA W. HALL.

Witnesses:

THos. DoRIAN, R. W. HARRYMAN.

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