US1966335A

US1966335A - Electric motor

Info

Publication number: US1966335A
Application number: US588200A
Authority: US
Inventors: Theodore A Cutting
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-01-22
Filing date: 1932-01-22
Publication date: 1934-07-10
Anticipated expiration: 1951-07-10

Description

July 10, 1934.

T. A. CUTTING ELECTRIC MOTOR Filed Jan. 22, 1952 11111111711111: 111 11111111]! 11 I! ll INVENTDR Thu-M Patented July 10, 1934 UNITED STATES ELECTRIC MOTOR Theodore A. Cutting, Campbell, Calif.

Application January 22,

8 Claims.

My invention relates to improvements in electric motors and the object of my improvement is to provide an efficient, simplified electric motor, capable of high speed and having great endurance. Further objects are to provide means for regulating the speed of the motor, new magnetic means for causing rotation, and specially shaped pieces of sheet metal from which the motor is made.

In the drawing:

Figure I is a side view of the motor with one standard broken away, Figure 11 is an end view, Figure III is the blank which bent on the dotted lines forms the vibrator and the means for holding the magnet, and Figure IV is the blank which folded on the dotted lines forms the base and standards.

The base 1 and the standards 2 are stamped from one piece of sheet metal and the uprights later bent up at right angles. A second piece of sheet metal, as shown in Figure III, is bent into a vibrating arm at one end and into a clamp for a magnet at the other end. A wheel 3 is mounted upon a pointed shaft 4 between the standards 2. The vibrating arm 5 is tapered and has a vertical portion 6 acted upon by magnet 7 and a horizontal portion bent at the tip into a contact portion 8 which strikes against the shaft 4 and causes it and its wheel 3 to rotate.

Each impulse of the alternating current brought to the magnet 7 through the wires 9 pulls the upright portion 6 of the tapered spring 5, with the result that it vibrates rapidly. As the spring 5 is drawn toward the magnet, the tip 8 is drawn against the shaft 4 causing it to rotate. As the pull on the magnet ceases the tip flies back clear of the shaft and is ready for a new pull.

The magnet '7 consists of windings upon a small bolt 10, provided with a washer 11, and a nut 12. The washer fits between the nut 12 and the end of the clamp 13. By means of the nut 12 the distance between the magnet '7 and the spring 5 may be regulated with great delicacy, and this provides a means of regulating the strength of pull and consequently the speed of the motor. Dents r 14 in the standards 2 pivot the shaft 4. The blanks are welded together.

I claim:

1. An electric motor having in combination a base, standards integral therewith and rising therefrom, a one-piece magnet clamp and vibrating spring fastened to said base, a shaft mounted between said standards, a wheel attached to said shaft, a magnet held by said clamp, an iron core for said magnet, a nut on the core of said magnet, and a washer between said nut and said clamp.

2. The combination in a motor of a base; standards integral with said base and extending vertically therefrom; a metal strip attached to said base; wings integral with said strip and extending therefrom to form a clamp, said clamp being 1932, Serial No. 588,200

somewhat elevated above said base; an electromagnet slidably held by said clamp; a threaded core for said magnet; a washer upon said core; a nut also upon said core whereby said magnet may be drawn within said clamp; a shaft mounted between said standards; a wheel aflixed to said shaft; and a tapered spring integral with said metal strip rising vertically from said base, passing near the end of said magnet and continuing upward for approximately half its length, then curving forward in a roughly horizontal direction until almost beneath said shaft, and finally rising again and, at a point near its tip, bearing lightly upon said shaft.

3. A motor frame consisting of a base, standards integral therewith and rising vertically therefrom, a platform attached to said base, means of embrasure integral with said platform, and a vibrating member attached to said base and integral with said platform.

4. In an electric motor, a base; standards rising from said base; indentations in said standards; a rotor pivoted in said indentations; a strip of metal attached at the end to said base, having a horizontal portion elevated above said base, a central portion attached to said base, and a vibrating portion for driving said rotor; a magnet upon the elevated portion of said strip; means for securing said magnet upon said strip; and means for adjusting the distance between said magnet and the vibrating portion of said metal strip.

5. In an electric motor, an actuating mechanism consisting of an electromagnet and a spring with a fixed end near said magnet, a curve in the central portion, and an angle near its free tip.

6. In a motor, a rotor and a reciprocating member in cooperation therewith, said reciprocating member having a terminal bend with yieldable frictional contact with said rotor as it moves in one direction and freedom therefrom as it flies back.

7. In a motor, a small shaft, a relatively large rotor upon said shaft, a vibrating spring imparting high speed to said shaft by reciprocating frictional contact therewith, and a magnet supplied with pulsating current actuating said spring.

8. In a motor, an actuating mechanism consisting of an electromagnet and a tapered spring with a fixed end near said magnet, a curve in the central portion, and an angle near its free tip.

THEODORE A. CUTTING.