US1140739A - Polarized relay. - Google Patents

Description

Witnesses G. B. GRAY.

POLARIZED RELAY.

APPLICATION FILED SEPT, 1, 191iv 1 2 1 49,739, Patented May 1915.

lllll lnve or Attorneys,

TRAIN lmm. may concern.

rania, ave inventeo rizeri "telav. or which the tes to improve- 1c. primary ob- "he. provision of of this character ptecl for use in concontrol and signal icanifs former U. S. to him Jain )1... icular relay being contwo signal circuits, as caution and tlang'er ioregoing other ohjects in view which appear as the description proceeds, the 'ention resides in the combination and arrangement of parts an in the (retails of construction hereinafter clescriheil and claimed, it being; unrlerstoocl that changes in the precise embodiment of invention herein (lisclosecl can he macle within the scope of what is claimed without departing From the spirit of the invention.

in the drawings l igure l is a detailed si le elevation of the polarized relay, a. portion ot the armature being shown in section to show the joint or pivot at that connection. Fig. 2 is a bottom plan view thereof. Fig. 3 is a section line taken on line (e-ti Oil Fig. 2.

Referring to the drawings, the numeral 7 designates the supporting bracket or casting, which is insulated from a supporting, plate not shown) by means of the strip 7' of insulation, this casting having attached thereto the pern'ianent open-ring magnet 8 in whose lower end is mounted the casing 9, while attached to and depending from its upper end as clearly shown in Fig. 1, is the electromagm-t 83. This casing 9 is providecl with a socket 9 and with a removable plate 9" for thereception of the pintle sunporting means 10 to which is pivoted the circula end 11 of the oscillatory armature or lever 12 which is disposed as a continuation of magnet 8 anti in such a position as to be controllcil hv the electroinagnet 83. The electro-n'iaggnct 3 comprises the two h the TEENNSYLHEHQZj-i, CONTROL 6: GO.-..-J @RELTZQIF (ll? EELM J.

PATENT ensues.

EXGNAEa which through we mecliuin or net 8 is a polarizeci rel flue to the attraction or force e3; lectroinagnet 83. Carried upon t e GEM. enil of the lever or arrest call or sphere "ulatio from th forward portion or Whose lower c rame i5 whose bly mounted a screw having the nii lecl not 17 for acljustably carrying the hloclr 18, whose lugs 19 are provided with alineci hores the reception of the insuiation bushing 20, anal adjusting screw upon one side the acljusting screw upon. the other side, a terminal plate 29 heingz; disposed between the heacl of the screw 21 and the outer face of the bushing 20, the purpose of which will appear later.

The screws and 22 respectively, are provided with the reduced contact points I) and a, respectively, which are normally in the path of and are adapted to be contacted by the respective contact points 0 and c carrieci by the armature or lever 12 in the path of or in the line of the said points I) and 7;, respectively. The armature 12 preferably provides a circuit breaker in certain circuits, not shown, and may he connecteii in said circuit in any suitable manner to open and close the same through the contacts Z) aml'o. I

Connected to the outer face of the frame by means of a plate 23 is a block 24 05 insulation which has depending from the underside thereof, the two terminal posts 2; and 25', having attached thereto the two curved spring contacts 26 and 27, respeca durable contact to resist the burning out at the point of contact with the carbon 28 and 29, respectively.

Regarding the contact points 26-27'- 28-29 as shown in Fig. 2, the platinum contact point 26' is made to engage the carbon point 28, and the same way platinum point 27 engages carbon point 29, and the points 28 and 29 are so adjusted that when the polarized relay forcesthe lever arm against the spring and platinum point 26'', a circuit including 26 and 28 is established and another circuit is ruptured at 27 and 29. Likewise when the lever'is thrown by the polarized relay in the opposite direction, it opens the contact points 26 and 26, and closes the, points 27 and 29. This controls outside circuits directly in accordance with the polarization of the polarized magnets, which are under control of another circuit.

The armature 12 is permanently polarized by the magnet 8 and is adapted to be moved in contact with either of the pole pieces (l or e by the reversing of the polarity of the relay 83. The armature 1'2 closes the magnetic circuit between the magnet 8 and the pole pieces (Z or e of the relay 83 as well as the electric circuit through the armature 12 and either of the contacts I) or 6. Also, the movement of the armature 12 closes and opens electric circuits between the contacts 26 and 28, and between the contacts 27' and 29 by having its insulated head 13 alter nately pressing the spring contacts 26 and 2'? into and out of electrical engagement with their respective contact points. By this means two signals, such as a caution and danger signal are controlled by this polarized relay.

will thus "be seen that by constructing the polarized relay according to the details herein set forth, a very simple and etiicient construction is produced and one wherein the slightest variation of the respective c1rcuits controlling or controlled thereby, will have the etiect or be edected as desired, and

that the circuit making or retaining electromagnets will in turn control or be controlled by the said polarized relay or elec tromagnets.

t'that is claimed is:

l. relay, having a bracket, an open ring permanent magnet depending therefrom, two coils and two cores connected to one pole of said permanent core plates carried by each core and extending toward each other-in spaced relation, an armature pivoted for horizontal oscillation in the other end of the permanent magnet and having its free end projected between the'core plates to be influenced thereby, a post depending from the bracket upon the opposite side to the coil from'the pivotal point of the armature, means disposed in the lower end thereof for limiting the oscillatory movement of the armature, a block of insulation connected to said post, a plurality of terminal posts carried by said block of insulation and disposed upon opposite sides of the extreme end of the armaturc, a rod mounted in the extreme end of thearmature, a block of insulation carried upon the extreme end of said rod, two oppositely disposed spring contact plates carried by two of said posts and disposed one upon each side of the block of insulation carried by the rod of the armature, and adjustable contacts one to each contact spring carried by the remaining terminal posts, for coaction with the respective spring contacts on'the oscillation of the armature.

2. A switch comprising: a permanent magnet, an electro-magnet comprising two coils connected to one pole of said permanent magnet, pole pieces on the opposite curl of said magnets, an armature pivoted for oscillation in the other end of the permanent magnet and having its free end extending. between the pole pieces of the electro-mag net so as to be influenced thereby, a terminal connected to the armature, contact points arranged in spaced relation on either side of the pivoted armature whereby a circuit may be established through said contacts and the armature, two sets of second contact points insulated from each othei. one set on either side of the armature, and an insulated portion on the armature to engage with certain of said second contact points whereby the contact points of each set may be brought into contact with each other to establish a circuit independent the circuit established through the armature by the movement thereof.

in testimony that l claim the 't'oregoing as my own, l have hereto allixed my signature in the presence of two witnesses.

tllltl ll llilt its (filthy nnns'r PAYNE, time P. THURBFR.

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