US2443559A

US2443559A - Mechanically operated bell

Info

Publication number: US2443559A
Application number: US689475A
Authority: US
Inventors: Fred T Garceau
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-08-09
Filing date: 1946-08-09
Publication date: 1948-06-15
Anticipated expiration: 1965-06-15

Description

June 15,' 1948. F. T. GARCEAU 2,443,559

MECHANICAL-LY OPERATED BELL Filed Aug. 9, 1946 2 Sheets-Sheet 1 June 15, 3.9428. F. "r. GARCEAU 2,443,559

' MECHANICALLYY OPERATED BELL Filed Aug. 9, 1946 2 Sheets-Sheet 2 30 WAS:

\ n a t 171? agre Patented June 15, 1948 UNITED STATES PATENT OFFICE 2,443,559 MECHANICALLY OPERATED BELL Fred T. Garceau, Negaunee, Mich. Application August 9, 1946, Serial No. 689,475

This invention relates to a, mechanically operated bell especially designed for use in signalling in factories, mines, or any place where there is excessive noise, due to operating machinery.

An important object of the invention is to provide a bell which is operated by mechanical means that will insure the positive operation of the bell at all times, and one which will give a signal suificiently loud to be heard over the noise of the factory, or room in which the device is positioned.

Still another object of the invention is to provide a bell of this character which embodies but few movable parts, and one which can be manufactured at a minimum cost.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claim, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

Referring to the drawings Figure 1 is an elevational view of a mechanically operated bell, constructed in accordance with the invention.

Figure 2 is a longitudinal sectional view through the bell, taken on line 2-2 of Fig. 1.

Figure 3 is a sectional view taken on line 33 of Fig, 1.

Figure 4 is a sectional view taken on line 4-4 of Fig. 1.

Figure 5 is a fragmental sectional View through the tapper-operating mechanism, illustrating the position of the trigger with respect to the tapper, when the tapper spring is placed under tension.

Referring to the drawings in detail, the reference character 5 indicates the bell base, which is formed with openings for the reception of securing screws or bolts, whereby the base may be secured to a supporting surface.

The bell includes the stand 5, which is secured to the base, by means of the the screws 1, the stand 6 being provided with a post 8 formed with internal threads, to accommodate a bolt 9 that secures the bell proper ID, to the stand. The spacer II which is disposed between the post 8 and bell I0, provides means to insure the vibrations of the bell, so that the sound produced by the bell will not be deadened.

The mechanical operating means forming the essence of the present invention, is supported ad- 1 Claim. (01. 116-152) jacent to the bell I0, and comprises a plate l2 which is formed with a right-angled end portion I3 that rests against the base 5, supporting the plate l2 in spaced relation with the base 5.

At the opposite end of the plate I2, is an angle plate M which extends over one edge of the plate I2, the angle plate being formed with an opening I5 that'registers with the open end of the tubular tapper housing I6, which is secured to the plate I2 by means of the clip I! and screws |8 which extend through openings in the clip, as clearly shown by the drawings. A similar clip 19 embraces the lower end of the cylindrical tapper housing I6.

The tapper housing I6 is formed with an elongated opening, disposed adjacent to the lower end thereof, which opening accommodates the lug 20'which is carried by the tapper bar 2| that moves within the cylindrical tapper housing I6, as clearly-shown by Fig. 1 of the drawings. The reference character 22 indicates the tapper which slides withinthe upper end of the housing I6, and

is engaged by the tapper bar 2|, as the tapper bar 2| is pulled upwardly. Since the lug 20 engages the upper end of the slot or opening in which it moves, it will be seen that the movement of the tapper bar 2| within the housing I6, will be restricted, and since the tapper 22 is of a length to be normally housed by the housing I6, the tapper 22 will immediately fall to its normal position as shown by Fig. 1 of the drawings, after it has been moved outwardly to strike the bell and cause a signal.

Thus it will be seen that due to this construction, the tapper will not in any way retard vibrations of the bell to curb its sounding qualities.

The trigger which operates the tapper bar 2| is indicated by the reference character 23, and is in the form of a bell crank lever pivotally mounted on the plate I2, by means of the pivot screw 24.

Pivotally mounted on the upper end of the trigger 23 is the head 25 which is of a construction to move into engagement with the lug 20 of the tapper bar 2|, when the trigger 23 is operated. Since the head 25 moves in the arc of a circle, it will be obvious that as the head moves downwardly, the tapper bar 2| will be moved against the tension of the coiled spring 26 mounted within the housing I6 directly below the tapper bar.

As the trigger 23 returns to its inactive position, the head 25 being pivotally mounted on the trigger, swings downwardly as the head 25 en- 3 ages the lug 20, the spring 2! pulling the head to the position shown by Fig. 1 of the drawing as the lug passes the head. The laterally extended lug 20' engaging the lower edge of the upper end of the trigger 23, restricts upward movement of the head 25.

The coiled spring 21 has one of its ends connected with the head .25, while the opposite end thereof connects with the angle-plate M, the action of the spring 21 being to normally return the trigger 23, to its operating position.

Secured to the other end of the trigger 23, is a coiled spring 28 that has one of it-s'endssecured to the plate l2, by means of the bolt 29. This spring 28 is of the contractile type and also acts to swing the trigger -23 to its operating position, after it has been released.

The reference character 30 indicates-thepull cable which has connection with the lower end of the trigger 23, by means of the bolt and plate assembly 3i. A bracket 32 is mounted adjacent to the lower end of the trigger 23 and is provided with flanges '33 and 34 at its ends, the flanges acting as stops for the trigger 23, limiting themovement of the trigger.

In operation, when it is desired to sound the bell, the pull cable 30 is operated'to pull that end of the trigger to which it is connected. The springs 27 and28 are now placed under tension, and as the head 25swings in the arc of a circle, the head engages "the lug- "moving the lug downwardly against the action of thespring 26 which is compressed within the lower portion of the housing 16. As the head passes the lug 2!}, the spring 26 forces the tapper bar 2| against the tapper 22 which is thrown against the bell Iii causing a signal to be sounded. Since the trigger bar 2| is'restrictedin its movement within the housing l6, it will be obvious'that the tapper 22 will return to the position as shown b 'Fig. 1 of the drawings, immediately after it has struck the bell.

Due to this construction, it will be obvious that the operation of the bell tapping mechanism will be positive at all times.

What is claimed is:

In a mechanically operated bell, a base, a bell mounted on the base, a cylindrical tapper housing mounted on the base directly under the bell, said housing having an elongated opening formed in the wall' thereof, s'aid'tapper housing having an open end disposed adjacent to the bell, a vertically moving tapper loosely mounted within the tapper housing and adapted to strike the 'b'ell a spring-pressed tapper operating bar operating within the housing and adapted to strike the tapper, forcing the tapper into engagement with the bell, a lug on the tapper bar, said lug being extended through the elongated opening, a trigger in the form of a bell crank lever pivotally mounted on the base, a pivoted head on the free upper end of the trigger moving in the arc "of a circle and engaging the lugmoving the'tapper bar'down'wardly-as the bell crank lever is operated, said head snapping past the lug releasing the'tapper to the action of the spring whereby the tapper is forced into contact with the bell, and said trigger head adapted to swing downwardly clearing said lug asthe trigger returns to its normal position.

FRED T. GARCEAU.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,357,915 Treanor Nov. 2, 1920 FOREIGN PATENTS Number H Country Date 125,896 Great Britain Apr.'22, 1919