US1555443A - Switch - Google Patents

Description

M. B. STAZAK Sept. 29, 1925.

SWITCH 2 Sheets-Sheet 1 Filed Jan. 14, 1921 o oooooloo'oocl) MZEE-Z' 27mm-l Sept. 29, 1925.

M. B. STAZAK swITcH led Jan. 14, 1921 Patented Sept. Z9, 1925.

UNITED STATES PATENT OFFICE.

MICHAEL B. STAZAK, 01E CHICAGO, ILLINOIS, ASSIGNOR I'O KELLOGG- SWITCHBOARD AND SUPPLY COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS.

SWITCH.

Application filed January 14, 1921.

Y 1o all 107mm it lmay concern Be it known that I, lulrcnani. B. Suzan, a citizen ot the United States of America, and residing in Chicago, in the county of Cook and State ot Illinois, have invented certain new and useful Improvements in Switches, of which the following is a description.

My invention has to do with a switch ot the type operated by a solenoid magnet such as is used in connection with a group ot contacts for electrically operated organs, and which contacts are closed simultaneous Associated with the solenoid magnet is a relay provided with a latching armature, used in connection with the said solenoid magnet tor the purpose ot releasing said contacts when they have been closed by the magnet sov that they are allowed to reopen.

For this specilication and description of my invention I have shown my invention in connection with a group of contacts as used in electrically operated organs, but my invention may be used tor making' contacts in other kinds ot apparatus, as will be readily seen and understood from reading the tollowing detail description.

For a more complete understanding of my invention reterence may be had to the accompanying drawings, in which like reference characters in the several views denote like parts, and in which Fig. l is a side elevation ot the switch of my invention, illustrating it in operative association with a movable contact carrying rack and its associated contacts;

Fig. 2 is a plan view of the switch of Fig. l;

Fig. 3 is a view similar to Fig. l, but showing the switch in its operated locked po`- sition and illustrating the contacts ot the pivoted rack when in engagement with their associated stationary contacts;

Fig. l is a view similar to Fig. E, but showing the latching armature in its attracted position to permit the restoration ot the solenoid latching plate and pivoted contact carrying rack and ot the solenoid; and

Fig. 5 is an end view of the solenoid and magnet.

As thus illustrated in the several views, my invention comprises a solenoid magnet A, which is provided with a U-shaped iron l,

Serial No. 437,181.

to the legs ot which the solenoid magnet A is suitably fastened by means oi screws 3. The said iron 1 is also provided with a guiding member 2, the use oit which will be hereinafter described. -The switch is secure ly fastened to a base B by the screws 3.

The solenoid magnet A comprises an energizing winding C wound upon a suitable tube between the spool heads 5 and 5', 70 and 7l being the terminals for the energizing winding C ot the solenoid magnet A. A core 6 is provided for the solenoid magnet A and is ot a size to permit its insertion in the tube. To prevent the rotation of the core G in the tube, the end of said core G is provided with a transverse slot 9 and a washer l5 provided with a pair of pins 16 which pass 'through suitable openings in the leg of the iron and extend therethrough and enter the said slot. A screw S passes through suitable orilices in the washer lo and leg of the iron l and has screw-threaded engagement with a suitably tapped oritice in the thread of the core 6. The screw 8 thus holds the core 6 in position in the tube, and the pins 1G of washer l5 in association with the slot 9 in the end of the core 6 to prevent the said core trom rotating.

rl`he plunger l2 is of a size for permitting its insertion into the tube and is tree to move in and out ot' the latter, and a suitable opening 17 in the leg ot' the iron l permits the insertion of the plunger 12 in the tube 4. The plunger end is cone-shaped, and the core 6 is provided with a conical shaped opening tor receiving the plunger l2 when the same is drawn inwardly upon the energization of the solenoid magnet A. The other end ot the plunger l2 is reduced and has secured thereto a. latching plate 20 by means of a drive lit, said latching plate having an opening tor receiving the guiding member A threaded opening in the plunger is also provided for receiving a threaded arm 2:2, its

end being provided with an eye 22. A telt washer 3() is also provided which is slipped over the plunger l2 and engages the face 24 of the latching plat-e 20, preventing the 'said plate 2() from coming in contact with the leg of the heel iron, thus giving a silent ac tion when the plunger end is drawn into engagement with the core 6. A groove 13 is provided on the circumferential tace ot the core t3, which groove is in alignment with Cra:

suitable openings in the leg oit 'the iron l and washer l5. This alignment is perinanentlysecured bymeans ot the pins 16 which engage the transverse slot 9 as hereinhei'ore described, and pern'iits air to escape when the plungerI l2 is drawn to the core upon the en-ergization ol the solenoid magnet il, thus preventing the formation ot an air cushion between the core G and plunger l2.

The release relay E operatively associated with the solenoid magnet A, may comprise the usual core, energizing winding F and terminals 3l, the winding F and core being suitably mounted upon a heel iron 33 by means ot' the screw 72. rlhe release relay E is securely mounted in a suitable position upon the heel iron l ol` the solenoid magnet. An armature is provided 'for the relay E and is pivotally supported between the extending portions ol the heel iron 33 by means ot a pivot pin 3S. rlhe angular extension 3G oit the armature is provided with a latching hook integrally formed therewith, for engaging the latching plate 2() which is secured to the plunger l2. A spiral tension spring ilO is provi-ded which rests upon the upper tace ot the extension 36 and held in place by an adjustable machine screw 4t2 which extends through a suitable opening in the extension and engages a suitably tapped oriliee in the iron l. A telt washer i3 is securely fastened to the face ot the spool head and this prevents the armature from coming in direct contact with the iron core 130. thus giving a silent action when the relay E is energized and the armature is attracted. The lock nuts 170 on the screw-threaded guide member 2 serve as adjustable means to limit the back stroke of the Solenoid plunger.

I will give only such briet description oit the mounting Contact ra lk as will be necessary Jror a clear understanding ot'its relation to the solenoid magnet il..

An upright contact mounting rack MR is provided with a plurality ot vertical contact strips 7 d suitably mounted. Another contact mounting rack MR having a plurality of spring contacts 78 (made ot phosphor bronze wire or some other similar material) is securely mounted to it and arranged in aligmnent `to make contact with strips 74, respectively. The contact rack MR is pivotally supported upon block 32. A spring' 311 is provided for holding the rack 1LT. in its normal position, having its one end secured to an arm 135 secured to the rack MR and having its other end secured to a hook on the block 32.

A suitable grooved pulley or wheel 140 is secured to the bottom ot the mounting rack MR and a wire or cord ll. tor operatively associating the pivoted rack MR with the solenoid magnet A, has one end secured to a hook H fastened to the rack MR, passes over the pulley 140 and has its other end secured to the eye 22 ott the arm 22 of the solenoid magnet A.

The operation of the various parts described above will be more clearly underrstood from the `following explanation:

The energizing winding ont the solenoid magnet il is suitably connected to a restoring circuit closing switch located on the key shelf ot the organ, said switch being under the immediate control otl the organist. The winding of the release relay is likewise connected to a restoring circuit closing switch located on the key shelf ot the organ and controlled by the organist. Then the circuit controlling switch controlling the winding of the solenoid magnet is operated, current flows through the said energizing winding, causing the plunger 'l2 `to be moved towards the core (3, and its point ll engages the cone-shaped opening l() in the core (i. The mounting rack MR being connected to the plunger l2 by the cord 41, is rocked about its pivot, and this movement lorces the spring wire contacts 78 into engagement with their respective contact strips 74E.

The latching plate 20, which is securely mounted to the plunger l2, rides along on the guidinemember 2 and engages the latching hook or the extension 36, pressing it upward against the tension ot the spring Ll0, until the latching plate moves beyond the latching hook when the spring lO forces the extension downward and locks the latching plate in the position as shown in Fig. 3. The plunger l2 will remain in its locked position and contact rack MR will remain in its rocked engaging position until the organist operates the circuit closing switch which is connected with the release relay E, permitting current to tiow through the energizing winding ot relay E and causing the attraction ol its armature The arnniture being attracted, the extension 3G is raised upward until the latching hook clears the edge oit the latching plate 20, and when in this position, as shown in Fig. il, the plrnger l2 and rack MR restore to their normal position by the action ot the tension ot' spring 3l. The return of the contact ack MR to its normal position breaks the contact connection between the wire spring contacts 7o and contactstrips`71l.

The parts all being returned to their normal position, will remain so until the solelnoid magnet is energized, which will repeat and modifications which come within the spirit and scope of the appended claims.

What I claim as new and desire to secure by United States Letters Patent, is:

1. A device of the character described including a plunger, a solenoid energizable to cause the incursion of said plunger, a member secured to the free end of said plunger, a latching member provided with an opening secured on the free end of said plunger, an electromagnet mounted on said solenoid, a locking member integrally formed with the armature of said electromagnet for engaging said latching plate to lock said plunger in its incursionary position, a guiding member secured to said solenoid and adapted to engage and extend through the opening in said latching plate for guiding said latching plate in its travel to insure engagement of said latching plate and said locking member, a plurality of movable contact makers, stationary contacts operatively associated with said movable contact makers, but normally retained out of contactual engagement therewith, means for operatively connecting said movable contact makers with said plungers via said member secured to said plunger, said solenoid being energizable to effect the incursion of said plunger and the engagement of said latching plate and locking member, whereby said movable contact makers are moved into engagement with said stationary contacts and locked therein by the engagement ot said locking member and latching plate, said electromagnet being energizable to release said latching plate to permit said movable contact makers and plunger to restore to normal.

2. A device of the character described including a solenoid, a plunger for said solenoid, a latching plate secured to one end of said plunger, an electromagnet mounted upon said solenoid, a locking member integrally formed with the armature of said electromagnet and adapted to engage said latching plate when said solenoid is energized, a guiding member secured to said solenoid for engaging said latching plate to uide said latching plate relative to said ocking member, a multiplicity of circuit controlling contacts on a pivotally supported carrier, means for connect-ing said carrier and said plunger to cause said carrier to rotate upon the energization of said solenoid, and means including a coil spring for normally maintaining said locking member in its locked position.

3. A switching device comprising a solenoid having an associated plunger, electrical contacts operable on movement of the plunger, a guide having an opening` fastened to the plunger, a stationary member secured to said solenoid parallel with the plunger for extending through said opening to direct the guide and the plunger in their travel, adjustable means on said member to limit the excursion of said plunger, an electromagnet adjacent said solenoid, a catch integrally formed with the armature of said electromagnet and pivotally supported for engaging the guide when the solenoid energizes, said electromagnet adapted .when energized to release said catch, and spring means for restoring said plunger to normal.

4L. A solenoid actuated plunger having a guide member rigid with the free plunger end and extending at an angle with the direction of said plungers travel, said guide member being provided with an opening, a stationary member secured to said solenoid and adapted to extend through said opening to direct the travel of said guide member, means secured on said stationary member for adjusting the normal relation of the guide member to the stationary member, a pivotally supported catch to engage said guide to hold the plunger in its incursionary position, and an electromagnet to release the catch, said catch being integrally formed with the armature of said electromagnet.

Signed by me at Chicago, in the county of Cook and State of Illinois, this l1 day of January, 1921.

MICHAEL B. STAZAK.

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