US1586855A - Polarized relay - Google Patents

Description

June 1 1926. 586,855

M B I'STAZAK POLARIZED RELAY Filed Jan. 26, 1921 u-mu-u...

H 7 2 2': a: 5Z5 1% y of my invention, andin which like reference Patented June 1, 1926.

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MICHAEL B. STAZAK, OF CHICAGO, ILLINOIS, ASSIGNOR TO KELLOGG SWITCHBOARD AND SUPPLY COMPANY, OF CHICAGO, ILLINQIS,-,A CORBQRATION OF ILLINOIS.

POLARIZED RELAY.

Application filed January 26, 1921. Serial 1 \To. 439,900.

an object of my invention is to provide an improved device of theclass descr bed wh ch will embody desirable features and advantages, all ma simple, efficient and economical' manner.

In a relay of the above type, the means for adjusting the space or air-gap between the armature and the ends of the magnet cores is often'mounted in such a way that it is inaccessible from the front of the relay and it is necessary to provide a special tool for use when ,an ad ustment is necessary, besides which time is lost due to the difficulty inapplying the special tool. to said ad} just-able means;

To overcome these ,ob-1ect1onable features, I provide an aduistable means which has adjustable. screws :t'or adjusting the air-- gap, andI mount-said adjustable means on one of the legs of the permanent magnet in sucha way. as to permit accesst-o'the said means from the front and with theaid of an ordinary screw-driver or similar tool an accurat liildjustment maybe made in a very short-time.

Another feature .of,.my,invent-ion is this,

that the said adjustable, means may be removed from the relay by unscrewing the permanent magnet from the relay without removing the entire .relayfrom its mounting plate. i

Theabove features ,OIdfly invention,- as

describechand tor-a more completeimtlerstanding of myinvent on, reference may be had to the accomp anying drawings, in which I have illustrated a preferred embodiment characters in the. severalfviews denote like parts, and ,which Fig. 1 is a front elevationqof the relay of my invention; 1'

Fig. 2 is a top view of;the relay;

.3 is a sideflvi ew of the relay;

Fig. 4 is a vieivot' its otherside;

Fig.5 is a bottom view of the relay;

Fig. 6 is a perspectiveview of thetarrnature of the relay Fig. 7 is a perspective view of the combined, armature and adjustable contact supporting member;

Fig. 8 is a perspective view of the clamping member which adjustably supports,

a whole the armature supporting member an d arm'ature in operative association with theelectromagnets of the relay.

Referring now in detail to my invention asillustrated', itcomprises a pair of electromagnets 2 and 8 connected by a yoke 4 and secured thereto in any suitable manner.

The U- shaped permanent magnet 5 is secured to the yoke 4: by means ofa screw (3, and its free end or leg 7 extends over the armature and' in proximity thereto,for the customary purposes The said leg 7 also serves asa support for the clamping meniber GM, with which is adjustably associated the armature supporting member 9 to be hereafter described. i

A clamping member GM, as shown in Fig.

8, comprisesa plate 20 having-an angularly ,prmectmgear 21, lntegrally formed therewithl To said plate 20 is secured a spring 22by means of the rivets 23, the purpose of this spring to be hereinafter described. A

I 24; shaped to fit' tightly on the leg- 7 of the permanent magnet his secured to the plate 20 by meanso'f machine screws 25 extending" through suitable openings in the plate 24 and having screw-threaded engage-- merit withc suitable tapped orifices in the plate This arrangement securely clamps thetwo plates'QO and24 to the leg 7 of the permanent magnet 5. An opening '27 is pro vided inplate 2%, PGTlllllltHlgille protrusion .well as others, W1ll be morefullyhereinafter adjustable;contact screws. 16 and 17, and

three terminals, 30, 31 and 32 are secured to the mounting member 9 by screws same M 'saidlbracket 18 making contact connectionwith terminal 31, and bracket 19 male; ing con tact connection with terminal 30 till Bracket 18 and terminal 31, and bracket 19 and tern'iinal 30 are suitably insulated from the arn'iat-ure supporting member 9 and from screws 33 and 3%. Terminal 32 is likewise insulated from terminal 31 and screws fin oblong slot- S is provided in the mounting n'icinbcr 9 for permitting access to a screw which secures a contact spring to the armature 8.

The innbine zl armature and adjustable contact supporting member 9 is disposed between t e clamping member and the ends of let cores, which brings it into meat with the leaf spring tne projecting car 11 resting on the face 40 of the angular car 21 of the plate 20. The said armature mounting member 9 is adjustably and securely held in its relation with the leaf spring 22 by means of adjustable screws 4-] and extending through suitable openings in the clamping member CM, and havin screw-threaded engagement with suitabi y tapped orifices in the armature mounting member 9. The leaf spring 22 serves to keep a continual pull on the adjustable screws ail and 422, thus preventing them from turning without the aid of an outside agent.

To increase or decrease the space or airgap between the armature 8 and the ends of the eectromagnet cores, all that is necessary is to turn the screws ll and 42 in clockwise or counter-clockwise direction, depending on the width of the air-gap desired. If one of the air-gaps is desired to be decreased, one will turn the corresponding screw in acounter-clockwise direction, and the move ment of the said screw will move the armature supporting member 9 away from the clamping member CM and bring the armature 8 closer to the end of the magnet core, thus decreasing the air-gap. If the air-gap is to be increased, turn the said adjustable screw in a clockwise direction, which will move the armature supporting member 9 closer to the clamping member CM, thus moving the armature 8 away from the end of the magnet core and increasing the air-gap.

The movement of one of the said screws does not, however, produce any change in the air-gap controlled by the other, and should this air-gap be in need of adjustment the corresponding screw must be operated before described, it being observed that when either adjusting screw is turned the arn'iature supporting member 9 tilts on the other screw as a pivotal point.

The armature 8 of the polarized relay is held in a biased position by means of an ad iustable tension spring et, one end of which uz'es a hook a?) secured to the armature S, and the other end of said spring is connected to an adjustable arm 46 having a tapped orifice for receiving the threaded pc on 4;? ol the rod 438, said rod l8 being rotatahly supported by a suitable bracket lf), which is in turn secured to the yoke l by screws. For a more detailed description and understanding oi the means for adjusting the biased tension spring la, reference may be had to pending application Serial No. 350,804i. tiled by Charles tiparli's, January 12, 1.920.

A terminal plate 50 oft insulating material is provided which carries a plurality oi? terminals 51 suitably secured thereto, part ol' which. serve for connecting external conductors to the energizing wind', oi the relay, while others scrvi for connecting external conductors with wires leading from the terminals 30, 31 and The terminal also connectec to the contact spring, secured to the armature 8 in the usual and well-known manner, and for the usual purposes. A. clamping plate holds the terminal plate 50 between the spacer washers 53 and itself by means of the screws 5+ which pass through openings in the plate 532 and washers 5 -3 and have SCH \b-illllQtitlCtl engagement with tapped orifices in the yoke The plate 52 has openings 55 through which the tern'iinals 51 project. An enclosing cover or shell 57 is provided which is slipped over the relay and held in place by neans of a nut A stud 29 which is secured to the leg 7 of the U-shaped iermanent magnet 5 extends through a suitable opening in the bottom of the cover 57 and has screwthreaded engagement with the nut 58, thereby securing the said cover 57 in place, enclosing the relay. Bolts 56 are secured to the clamping plate 52 and form means whereby the relay and its enclosing shell 57, as a whole, are mounted on a supporting strip in the usual manner.

I desire not to be limited to the precise structures shown and described, but shall claim my invention in a general manner, intending to so word it as to include modifications within the scope of the invention.

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

1. An adjustable mechanism comprising a U-shaped magnet to which is secured a clamping member having a leaf spring socured thereto, a contact and armature supporting member adjustably associated with said clamping member by means of said leaf spring, and adjustable screws extending through said clamping member and engaging tapped orifices in said contact and armature supporting member, said contact and ar nature supporting member moving to or away from said clamping member when the said adjustable screws are rotated.

2. An adjustable mechanism comprising a U-shaped magnet associated with a pair of electromagnet coils, a member having a leaf spring fastened to one leg of said U-shaped magnet, a carrier supporting an armature and adjustably associated with said member by means oi said leaf spring and by adjustable screws and thereby interposed and floated between the ends of said electromagnet coils and said member, the space between each end of said armature and its associated coil being independently regulated and adjusted by rotating the said adjustable screws.

3. An electromagnet having an armature pivotally supported on a carrier, a permanent magnet, said carrier being also piv otally supported on the permanent magnet of said electromagnet, screw-threaded adjusting means for tilting said carrier and therefore said armature to and from said magnet, and terminals for said electromagnet secured to said carrier.

i. A tWocoil electromagnet having an armature pivoted at a point intermediate of its cores upon a carrier pivotally supported independently of said cores at points one on either side of the pivotal armature support by screw-threaded adjusting means, and ter ninals for said electromagnet secured to sait carrier.

5. An electromagnet including a pair of coils, an armature pivotally mounted intermediate of the coils and independently of said coils, a permanent magnet to polarize said armature and carrying it by clamping means including screw-threaded adjustable pivotal supports, one on either side of the armature mounting, said armature mounting-adapted to be moved to adjust the relation of the armature to the cores of the elec tromagnets.

6. A two-coil polarized electron'iagnet having an armature pivoted between its cores, and micrometrically adjustable means for changing the air gap between said armature and either core independently of the air gap at the other core, said means comprising a carrier for said armature and screw-threaded devices for changing the position of either end of said carrier independently of its other end, and supporting means for supporting said carrier relative to said cores, said supporting means being clamped to the permanent magnet of said polarized electromagnet.

7. A polarized electromagnet having an armature, means for maintaining the armature in a biased condition, micrometer adjusting means for each end thereof, means for pivotally supporting said armature independently of the cores of said electromaget, other means for supporting said second means relative to -the cores of said electromagnet and for operatively associating said adjusting means with said armature supporting means.

Signed by me at Chicago, in the county of Cook and State of Illinois, this 24 day of January, 1921.

MICHAEL B. STAZAK.

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