US896808A - Relay. - Google Patents

Description

BEST AVAILABLE COP No. 896,808.' 7 PATENTED AUG` 25, 1908.

F. L. DODGSON.

RELAY.

.APPLICATION FILED MAR, 2g 1906. RENEWED FEB. 21. 1908.

3 SHEETS-SHEET l.

PATENTED AUG. 25, 1908. F. -L. DODGSON.

RELAY.

APPLICATION FILED MAB.. 2. 1906. lRENIBWBD FEB. 21, 190B.

No. 896,808. PATENTED AUG. 25, 1908.

F. L. DODGSON".

' RELAY. APPLIGATION FILED 11.1.3.2, 1906. RBNBWBD PEB. 21. 1908.

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UNITED' STATES fkTEN-T FICE. l"lt.'\NK LEMQNT DODGSON, OF BUFFidl-('lgggwll SSGNOR TO GENERAL ltAllV/l SIGNAL'COMPANY, OF BUFFALO, NEWT YORK, CORPORATION OF NIV YORK.

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No."89l6.,808. Specification of Letters Patent.- Patented Aug. 25, 1908.

' Application mea March 2; 1906. serrano. 303,860. Renewed February 21, 190s. segnalano. 417,088.

To all whom 'it may concern: ture 12 are Contact arms 14, which, when" VBe it known thatfI, FRANK LEMONT Donor the magnets are denergized, make electrical. SON, a citizeny of the United States, residing connection with the hack contacts 15, and at Buffalo, in the county of Erieiand State of' which, in the energized state of the niagnets .5 Newr York, have'invented a new and useful make electrical connection with the contacts Improvement in Relaysjof v which Ythe fol- 16. In. tho drawings, l have shown. as the lowing is a specification. desirahle construction for the uses in ques- My invention relates to relays and more tion carhon front contacts and platinum particularly to relays for railway switching hack contacts. The/ ira-leading wires conand signaling apparatus. In relays for such neet with the. binding-posts 17, which are es uses certain requirements of construction connected with their respective contact arms and arrangement are imposed, which re- 14 by llexihle conductors 18. 'lhe circuits ol ('uirements for the successful operation are the front contacts 16 lead out through the r iscovcred and the necessary construction binding-posts 19, and the circuits ol' the hack reached hy experiment and test rather than vcontacts lead out through the binding-posts 'gg hy any predetermined engineering plan. I 20. All of the binding posts are secured to shall point out certain of these requirements, and through. the carrying plate 2, are insual ter describing my vinvention generally, and lated therefrom and are damp-proof thereinv 'show how my invention meets the same. Having generally described my apparatus,

ln th'e drawings herewith 1 have shown a l will point out the special features ahoye re- 7', four-arm, .eight-contact relay as a typical l erred to. form of 'my invention.y t' f ,'First, itis necessary that the working Figure -I laan elevation, partly in section; parts he symmetrically arranged, that the Fig; is a top plan view and Fig. 3 is a horicontact arms he equally and properly spaced zontal section on the line :z3-:1r: of Fig. 1.1 and of the same, length. Repeated experigo -Like characters (if-reference indicate corment has shown. these to he necessary feares ondingparts. `T I tures in the perfect working of the relay. he housing of the apparatus -is made up This I have accomplished by making the el ahase plate 1, a carrying'plate 2, and a hase rectangular in form and making the surrounding glass or other non-conducting housing rectangular in cross section. Thus 85 l'hody 3. The eripheries of the-body 3 are the contact arms are of equal length, equally seated within an es on the plates 1- and 2, spaced and placed symmetrically with referandthe lparts are eld togethervhy screws 4. ence to the magnets and the magnetic field. NVith the use of Water-proof cement this 'lhis results in a higher elliciency and more housing affords a damp-proof chamberor perfect action. 90 the working arts of the relay. The magnet Second, the rectangular and enlarged ends cores are ma e up of cylindrical bodiesqfhnd '6 of the cores secure an iiicreased magnetic. rectangular and enlarged poles or ends 6. elticieney and an equality of magnetickpull -|`he yhodies5 of the cores fit snugly through 'and equality of 'release which l have not holes in the carrying plate 2 and are secured found attainable hy any other form, 95 to it hy screws 7 passing through said plate Third, hy securing the cores to the carry and threaded in to rectangular ends or two ing plate 2 hy screwing the. ends 6 thereto, diametrically op l osite` corners. rlhe windand by making the shells and magnet windings Sand the s iells 9 are slipped over the .ings readily removable simply hy releasing cores 5 and held down firmly on the plate 2 the connections at the binding-posts, uu- 100 hy tlu` hlriding post yoke10, which, in turn, -screwing the nuts 11 and removing the yoke f' is held dii'wn hy nuts 11 threaded to theup- 11), the coils of the magnets may he removed per ends'rif the cores 5. The yoke 1.() carries and replaced. Withoutin' any manner disturhg the binding posts for the circuit ol themaging the adjustment or the insu lationagaiuslgNY nets. currentor moisture of the other parts ol' the les 12 is an arnurture common to both magnet apparatus. This is of importance, since the cores. 'l`his armature is )ivotally secured to replacement of a defective coil may he at any lugs I3 which are secured to the )late 2, and time made by one not possessing the neces- 'faces the rectangular ends 6 et the cores. sary knowledge or skill to adjust the entire Mounted with but insulated from the. armaapparatus. l 110 Fourth, by mounting all or" the parts von the carrying plate liability to derangement, due either lo'expension or oontrecion or to the loosening of parte, is reduced to the miniinuin.

llnving thus described my invention and liu ving indicated its features, Wli'a't I claim is:

ln a relay, in combina-tion with the magnet coils, housing, and currylng plate, cores having enlarged and rectangular shapedends or poles, an armature governed by said magnets and means for securing said cores in place by securing said ends to said carrying plte.

In testimony whereof, I have hex" to set my hand in the presence of two Witn" sees.

FRANK LEMONT DODGSON.

Witnesses:

ISAAC R. NOBLE, C. J. LEWIS.

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