US752345A

US752345A - Electromagnet

Info

Publication number: US752345A
Authority: US
Publication date: 1904-02-16
Anticipated expiration: 1921-02-16

Description

PATENTED FEB. 16, 1904.

ED MAY 23,

BYJFMW 0443/41 flak ATTORNEY J. G. KELLER & O. F. KADOW.

ELECTROMAGNET.

APPLICATION PIL N0 MODEL.

LUMP-X WITNESSES: W

UNITED STATES Patented February 16, 1904.

PATENT OFFICE.

ELEOTROMAGNET.

SPECIFICATION forming part of Letters Patent No. 752,345, dated February 16, 1904. Application filed May 23,1903. Serial No. 158,413. (No model.)

To all whom, it may concern:

Be it known that we, JAMEs C. KELLER and OTTO F. KADow, citizens of the United States,

and residents of the city of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Electromagnets, of which the following is a specification.

This invention relates to electromagnets; and its novelty consists in the construction and adaptation of the parts, as will be hereinafter more fully pointed out.

The purpose of this invention is to make the core of an electromagnet in such a shape and in such a manner that it will serve as a mechanical element to perform functions usually performed by outside mechanisms, and to that end the core of the magnet is made of a plurality of members each separately wound and one of which is movable, so that when the core is energized by the passing of an electrical current through the surrounding conductingwire the magnetic field surrounding the energized core is such that the movable member of the core will be attracted and moved toward the other member or members and will operate other mechanical elements connected with it.

In the drawing there is illustrated a form of electromagnet embodying the invention.

In the drawing, 1 is an electromagnet provided with a core 2, consisting of two members and 21, made of soft iron or other suitable metal, connected at two of their ends by a hinge 22. Closely wound around the members of the core 2 are coils of conductingwires 3, leading to and from a battery or other suitable source of electrical energy. The circuit is provided at any suitable point with a switch 31, whereby it can be opened and closed at will.

In the electromagnet illustrated the member 20 of the core 2 is fixed in suitable supports and is provided with an upwardly-extending bracket 23. The hinged movable member 21 is provided with an upwardly-extended rod 24, hinged to the member 21 at 25 and adapted to oscillate on the bracket 23. The ends of the

members

20 and 21 are each within the magnetic field when the core 2 is energized. It will be seen, therefore, that if a current of electricity be caused to pass through the conductors 3 by closing the switch 31 the

members

20 and 21 will be attracted toward each other, causing the rod 24 to move from left to right at its upper extremity inthe manner indicated by the arrow.

It will thus be seen that in theconstruction illustrated the two members of the core of the electromagnet by their relation and movement can be employed to perform avariety of useful functions derived from such movement. For example, the rod 24 may be employed to open and close by its motion a secondary electrical circuit or to positively act to move a lever, or to serve as a link between the member 21, serving as a crank, and some other mechanical element.

What we claim as new is- 1. An electromagnet provided with a core consisting of two members, one fixed and provided with a bracket and the other movable on a hinge and provided with a rod connected to the bracket.

2. An electromagnet provided with a core consisting of two members one fixed and provided with a bracket and the other movable on a hinge, and a rod pivotally connected with the movable member and the bracket.

Witness our hands, this 20th day of May, 1903, at Cleveland, in the county of Cuyahoga and State of Ohio.

JAMES C. KELLER. OTTO F. KADOW'. Witnesses:

A. F. HEss, W. J. Lows.