US1080583A - Electrical apparatus. - Google Patents

Description

H. E. REBVE. ELECTRICAL APPARATUS.

APPLICATION IILBD SBPT.25,1908.

Patented Dec. 9, 1913.

UNITED STATE PATENT ()FFICE.

HENRY E. REEVE, OF NEW YORK, N. Y.

ELECTRICAL APPARATUS.

Application filed September 25, 1908.

To all whom it may concern:

Be it known that I, HENRY E. Rnnvn, a citizen of the United States, residing at New York, in the county of Kings and State of New York, have invented certain new and useful Improvements in Electrical Apparatus, of which the following is a specification.

My invention relates to inclosed contacts and is particularly adapted to signaling apparatus.

It is illustrated as applied to an electric bell or gong but it will be evident. that it may be utilized for other purposes.

The main object is to provide waterproof or damp proof contacts. Several attempts have been made to accomplish this result, for instance by inclosing the contacts and viln-ator, or inclosing the contacts and. cooperating with the vibrator through the medium of a diaphragm and plunger. I have sought to give great reliability and yet delicacy of action so that a substantial opening and closing movement may be effected by a small amount of power. I may submerge the contacts in oil. Oxidation of the contacts from any cause is practically prevented.

The accompanying single sheet of drawings illustrates a few forms of the invention.

Figure 1 is a view of an electric bell or gong, with one form of my invention the cover of the contact device box being removed. Fig. 2, is a section of the .incloscd contact device at right angles to Fig. 1. Fig. 3, is a sectional view of another form of the invention. Fig. 1, is a similar view of a third form.

The main features of the invention will be found to consist of the contacts and the box or inclosure having a flexible diaphragm to which is secured a tilting lever. In its preferred form the diaphragm comprises two disks spaced apart and mounted in a ring. One disk is carried by the inclosure or box while the other disk carries the lever which projects inside the box for making or breaking circuit and projects outside for mechanical operation.

The base or frame 1, carries the usual electromagnet coils 2, 2. The armature 3 is pivoted at 4 and pressed against. stop 5 by the tension of spring 6. When the magnets are energized the armature is drawn to the left and causes the hammer 7 to strike the bell or gong 8.

Specification of Letters Patent.

Patented Dec. 9, 1913.

Serial No. 454,736.

The box or inclosure 9 may be electrically grounded on the metal base 1. In one side of the box 5) is an opening 10 in which is fixed a bushing 11 having an opening 12. To this bushing is secured the flexible disk 13 which carries a ring l t. The ring in turn carries another flexible disk 15 and luishing 16. The contact making lever 17 is carried by this latter lmshing and projects inside and outside the box. The spring contact 18 is mounted inside the box but is insulated therefrom and connected to the magnet coil 7 through the watertight passage 19. The circuit passes from battery 20 to grounded post 21, base 1, grounded box 9, bushing 11, disk 13, ring 1 1, disk 15, bushing 16, the inner arm of contact lever 17, spring contact 18, coils 2, 2, insulated post 22 back to the battery 20, through switch 23 or other starting device.

The extension 2 1; of the armature is prefcrably forked and embraces the outer end of the lever 17. The tension of the spring 6 forces the extension 2 1 upward (see Fig. 1.) so as to tilt the contact lever 17 and make contact with spring 18 inside the box. The diaphragm serves as a pivot or support for the contact lever 17. hen the armature 3 is attracted by the magnets the extension 24 is retracted from lever 17 which tilts by virtue of the tendency of the spring disks to return to their unflexcd positions and the contact with spring 18 is broken. This dcenergizes the magnets, and thus releases the armature. By repetition of this action vibration is set up. The fork-like shape of the extension 24 prevents displacement of the end of the contact lever 17.

The circuit may be effected through independent springs such as 18 and 25 in Fig. 3. In this form I have also shown a modified type of lever, the arms 26 and 27 being extended parallel with the disk 15. This is desirable in some cases where from form or arrangement of other parts the first type is not so convenient. IVith these independent contacts 18 and 25 the circuit is not grounded but is completed by the interposition of the insulated metallic tip of the lever 26 between the ends of the springs.

In Fig. 1, the contacts 18 and 25 are independent but the circuit is closed by the movement of the lever 17 bringing the tips together. In this figure the outer end 27 of the lever is parallel to the disk 15 as in Fig. 3 but the actuating connection 28 is in the form of a loop so as to embrace the end of the lever and move it positively in both directions. The disk 15 need not be elastic in this case but only flexible. Vhere only a slight movement of the lever is necessary or Where a large disk can be used the rim may be secured to the fixed ring 29 thus doing away with the disk 13 shown in the other forms.

In the claims I shall refer to the lever which is carried by the disk or disks as the contact lever Whether it forms a part of the circuit as in Figs. 1 and 2 or bridges the contacts as in Fig. 3 or merely brings them together as in Fig. 4. In each case it serves to alter the condition of the circuit either by making it or breaking it.

The construction is such that it is impossible for any Water or dampness or gases to obtain access to the contacts. The long arms of the contact lever greatly multiply the movement of the armature so that a clean make or break can be produced by a very small movement of the actuating device. The coils may be \vaterproofed or inclosed in any suitable Well known manner it desired. It is apparent that the proportions and arrangement of parts may be varied if desired.

Vhat I claim is:

1. Electrical apparatus comprising a casing containing electric contacts, a transmitting lever extending through one Wall of said casing, a duplex elastic metallic diaphragm connecting said lever and easing, a magnet and an armature outside of said casing for oscillating said lever and guides connected to said armature for maintaining said lever in a given plane of oscillation.

2. Electrical apparatus comprising a casing containing the parts to be protected, a transmitting lever extending through one Wall of said casing, an elastic metallic diaphragm connecting said lever and casing, a magnet and a pivoted armature for oscillating said lever,,and means of connection between said armature and lever for restricting said lever to a single given plane of oscillation.

3. Electrical apparatus comprising a casing containing the parts to be protected, a transmitting lever extending through one Wall of said casing, a duplex elastic metallic diaphragm connecting said lever and casing, a magnet and an armature for oscillating said lever and guides connected to said armature for maintaining said lever in a given plane of oscillation.

4. Electrical apparatus comprising a casing containing the parts to be protected, a

transmitting lever extending through one Wall of said casing, a duplex elastic metallic diaphragm connecting said lever and casing, a magnet and an armature for oscillating said lever, and a forked member connected to said armature for maintaining said lever in a given plane of oscillation.

5. Electrical apparatus comprising a casing containing the parts to be protected, a lever for transmitting motion through a Wall of said casing, a duplex metallic diaphragm supporting said lever, a magnet and a pivoted armature member for vibrating said lever and maintaining and restricting the vibrations of said lever to a given plane.

6. In combination, a casing provided With an opening in the Wall thereof, a lever extending freely through the opening in the Wall of the casing for transmitting motion between points outside and inside the said casing respectively, an elastic diaphragm connecting the lever and the Wall of the casing for yieldingly supporting said lever, means for vibrating the lever in a given plane and guiding means engaging the lever and confining the movement of said lever to the said plane.

HENRY E. REEVE.

Vvitnesses WM. G. COPELAND, Ron'r. S. ALLYN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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