US1513299A - Electromagnetically-operated switch gear - Google Patents

Description

Oct. 28 1924.

1,513.29!) E. VOLKERS ELECTROMAGNETICALLY OPERATED SWITCH GEAR Filed June 30, 1924 Ern/Z Z l/o k Patented Oct. 28, 1324.

amazes UNITED, STATES EMIL VOLKERS, F IBERLIN-LANK'WITZ, GERMANY.

ELEGTBOMAGNETICALLY-OPEBATED SWITCH GEAR.

Application filed June 80, 1924. Serial No. 728,408.

Lankwitz, Germany, 27' Corneliusstrasse,

have invented certain new and useful Improvements in or Relating to Electromagnetically-Operated Switch Gears, of which thejfollowing is a specification.

The present invention relates to a driving mechanism, more particularly a switch gear, operated by an electromagne't; and it consists in a construction which requires only a small space and in which the electromagnet effects the progressive forward movement of the switch gear or other element to be driven in a simple and efi'ective manner.

According to the invention the electromagnet, which is mounted so as to oscillate, is drawn, when energized, towards'its armature, which is prevented from moving in the direction of the magnetic attraction, and,

taking the armature with it, swings forward to effect the onward movement of the gear.

The accompanying drawing shows an example of a construction according to the invention.

Figure 1 is a side and Figure 2 a plan view.

The electromagnet l is secured to a lever 2 which can swing about an axle 3. The armature 4 is connected to the electromagnet 1 by a spring 5. The element to be driven, here shown as a ratchet wheel 6, is rotated under the action of the weight of the electromagnet l by means of a pawl 7. In the normal position a contact 8, secured to the armature, engages with a fixed contact 9. The circuit of the current from a battery 12 is closed in this position and the magnet 1 energized. The armature cannot,

however, be inoved towards the pole 11 of the electromagnet because the armature is held fixed by the contact 9 and the electromagnet is, consequently, moved towards its armature. The momentum acquired by the rapid movement of the electromagnet causes the parts to take up. the position in which the armature a and the pawl 7 are shown by dot and dash lines. I

The current is interrupted when the pole ll engages with the armature 4. During this oscillation of the electromagnet the ratchet wheel is prevented from moving by a fixed pawl 10 engaging in the teeth or the ratchet wheel. The electromagnetthen again falls by its own-weight, the pawl 7 effecting the forward movement of the ratchet 6 in the direction shown by the arrow.

The electromagnet is again in its normal positlon with the contact 8 closed and the process is repeated.

If several switch gears are to be driven simultaneously, they can be electrically connected and the interruption of the current for all the gears efi'ected at only one member. Interrupting devices are, consequently, unnecessary at the other switches.

I claim:

1. An electro-magnetic driving mechanism, comprising an oscillatory driving element; an electro-magnet secured to said element to move in unison therewith; an armature loosely related to the magnet; fixed and movable contacts for closing a circuit through the magnet, the movable contact being carried by the armature so that the latter will be held against movement toward the magnet when said circuit is closed, whereby the energization of said magnet will cause it to move toward said armature and to interrupt the circuit at the conclusion of such movement, said magnet moving automatically in the opposite direction when such interruption takes place; and a driven element engaged by said driving element to be operated thereby during and consequent upon the movements of the magnet.

2. An electro-magnetic driving mechanism, comprising an oscillatory driving element; an electro-magnet secured to said element to move in unison therewith; an armature for the magnet loosely connected to the driving element; a driven element engaged by said driving element and adapted to be operated thereby; means for causing said magnet, upon energization, to be drawn toa ward said armature; and means for actuating said armature at the conclusion of the movement of the magnet to de-energize the latter, whereby said driving element will be caused to intermittently operate said driven element.

3. An electro-magnetic driving mechanism, comprising an oscillatory driving element; an electro-magnet secured to said element to move in unison therewith; an armature for the magnet; a connecting spring between the magnet and armature to constitute a yielding support for the latter; fixed and movable contacts for closing a circuit "through the magnet, the movable contact being carried by the armature so as to cause the same to be held against movement toward the magnet when said circuit is closed, whereby the energization of said magnet will cause it to move against said armature and ultimately separate said contacts with resultant interruption of the circuit; and a driven element engaged by said drivin element to be operated thereby during an con sequent upon the movements of the magnet.

4. An electro-magnetioi driving mechanism, comprising an oscillatory lever; a

driving pawl carried thereby; an electromagnet mounted on said lever to move in unison therewith; an armature for the magnet; 9. connecting spring between the magnet and armature to constitute ayielding support for the latter; fixed and movable contacts for closin a circuit through the magnet, the movab e contact being carried by the armature so as to cause the same to be held against movement toward the magnet when said circuit is closed, whereby the energization of said magnet will cause it to move against said armature and ultimately separate said contacts with resultant interruption of the circuits; and a toothed driven element engaged by said pawl to be driven step by step during the oscillations of lever.

In testimony whereof I have aflixed my signature in presence of two witnesses.

EMIL VOLKERS. Witnesses:

. T. FOLSCHEL,

E. HoL'rzEnMAN.

the

Images