US1285498A - Relay. - Google Patents

Description

A. WALLACE.

RELAY.

APPLICATlON FILED MAY 4. I916- Patnted Nov. 19, 1918 I XVgTOR 4 c 76 is rigidly 1 s rhannrr @FFEQE.

A. WALLACE, F PITTSBURGH, TPEENSYLVAHL'A, ASSIGNOR TO THE UNIUR @WIIE'GH & SIGNAL COMPANY, @F SWISSVALE, PENNSYLVAIG'IA, A. CDEIEORATIG'N OF resins-revelers.

RELAY.

mes es.

Specification of Bet rs Patent.

Patented Nor. t9, r9118.

original application filed June 23, 1914, Serial No. 8457M). Divided and this application filed May 4, 1916. Serial No. 95,303.

To all whom it may concern:

Be it known that'l, HERBERT A. WALLACE, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Relays, of which. the following is a specification.

My invention relates to relays.

The present application is a division or my co-pending application, Serial No. 8%,?30, filed June23, 1914, for railway signaling.

twill describe one form of relay embodying my invention, and Will then point out the novel features thereof in claim.

The accompanying drawing is a view showing one form of relay embodying my invention Referring first to the drawing, the relay here shown comprises a top plate 19, and a base 20, "which parts are separated by a glass cylinder 81, the three parts being held together by screws 77. Mounted on the top piste 19 is a magnet, 51, having pole-pieces 79 78 shaped substantially as shown. This rnagnet, may be of any suitable type; as here shown it, is a permanent magnet. Pivotally mounted between the pole-pieces, is an arr-nature 52 having a Winding 7 8. An fastened to the armature, pivotally connected to this arm is downwardly extending link 53, which in turn is pivotaily connected with a rocker arm or which is pivotally mounted at 55 in a lug 75. Pivotally mounted also-on this lug at points 56 and 57 are two arms 58 and 59, which arms carry counterweights 60 and 61 and contact fingers 62, 63, 6d and 65.

As here shown, the fingers 65 and 63 are adapted to engage with contacts 68 and 69 respectively, which in turn are supported by studs 82 and 7 mounted in the top plate 19. Fingers 62 and (it which are carried by arms 58 and 59, are adapted to make contact with blocks 71 and 72 respectively, which blocks are also mounted in the top plate 19. -Contact arms 58 and 59 are electrically connected with posts 83 and M respectively by wires 73 and 74: which posts are also mounted in top plate 19.

The downward movement of: arms 59 and 58 is, as here shown, limited by stops 66 and 67 respectively, but since the contact fingers 65 and 63 rest on contacts 68 and 69 when the arins are down, these contacts may be employed as stops if desired, in which case stops 68 and 67 may be omitted.

It is understood that. the arms 59 and 58 and the contacts operated thereby may be duplicated, all of the arms extending to the i tact fingers 63 and 65 engage with contacts 69 and 68 respectively.

When Winding 7 8 is supplied with current of such polarity as to cause armature 52 to rotate in the direction of arrow 89, 70, which is rigidly fixed to the armature 53 to move upwardly, thus causing arm to rotate in such direction as to raise arm e thus bringing contact finger 52 into engagement with bloclr '5' raising finger 63 out of engagement with 'ontact 69.

When the polarity of the current in winding 78 is reversed, armature 52 will rotate in the direction of arrow 80, thereby rnovi U link 53 downwardly. Arm 5% then rotates about point 55, has been previously plained, hut

the opposite direction, thus raising arm 59 so that finger tidengages block 72 and finger 65 leaves contact 88.

it will be seen that When the relay is deenerglzed both fingers 58 and 59 rest on their steps so that Tooth back contacts are made; but when the 1 lay is energized one or the other of the ,gers is raised according to the polarity of the current in the armature. This operation of the contacts may be utilined for the control of railway signal cir cuits in the manner described in the parent application above referred to, or in any other manner as readily understood by those skilled in the art.

Although I have herein shown and described only one form of relay embodying my invention, it is understood that various changes and modifications may be made said fingers in opposition to-its bias to engage its front contact when the member moves in one direction from its middle position, and for moving the other finger in opposition to its bias to engage its front contact when the member moves in the other direction from its middle position.

In testimony whereof I afiix my signature in presence of two Witnesses.

HERBERT A. WVALLACE.

Witnesses:

HERMAN vTEGKER, H. Loorrrs.

Images