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Publication numberUS132 A
Publication typeGrant
Publication dateFeb 25, 1837
Publication numberUS 132 A, US 132A, US-A-132, US132 A, US132A
InventorsThomas Davenport
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in propelling machinery by magnetism and electro-magnetism
US 132 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

`Trios. Daylnsronr, orvi'nzasnoy, mahonie 4 lnenovtntnr nl PRoPEtL'lNe MACHINERY BY MA'GNtTisM AND tttctiio-MAGNEUSM,

Speeilieatinn forming part of Letters Patent No. 132, lated 1-`tln-nary 15, 1F37.

To all zchontit may concern: l

Be it known that I, Tnonls Darmronr. ofthe town ot Brandon, iu the county ot' liutland, State ot' Yermont, have made a discovery, being an Application 0t` Magnetism und4 forms, Baud ',npouwhich the a-plmratusrests,

ot a size and strength adapted for the purposev intended. l

The galvanic battery D is constructed'by placing plates ot' copper and zinc E and I", ali ternately ot' any ligure, in a vessel ot' diluted acid, G. From each vessel are two conductors, H and I, vone from the copper and one from the zinc', leading to and i-n contact with co'ppery plates K and L placed upon th-e lower plattorm. These plates or conductors are made in the form ot' a segment ot' a circle correspondlng in number with the artificial magnets hercinat'ter described, placed around the shalt de' Cached from one another and from .the shalt,

having a conductor leading from the copper plate ot' the battery to one ot' said plates on; thelower platforimaud another eondnctorleading from the zinc plate of the battery to theV next plate on said lower platform, and so on alternately (it' there be more than two plates on said lower platform) around the circle."

The galvanie magnets )LN O l are coni strncted of arms 0r pieces of soft iron in the shape of astra-ightJ bar, horseshoe, or any other figure, wound withcopper wire (g tirst insulated with silk betweeuthe coils. 'lhese arms project ou lines from 'the center ota verticalshat't, R,tnrn`ing on a pirot or neint in the lower platform, said copper wires Q extending from the arms paralicl,ornearl y so, with the shaft, down to the copper platesl and L and iu contact with them. The galvanic magnets are fixed on a horizontal wheel ot' wood, Y, attached to the shaft. The artificial magnets S T are madeot'steel and in the usual manner. VThey may -be' of any number and degree vof strength and fixed on the npperiplat-lform, bein g segments of nearly thesame circle as this platform; or, itgalvanic magnets are used, (which may be done.) they may be made in thc t'orm ol' a crescent or horseshoe, with their poles pointing' to the shaft. llavingarranged these artiticial magnets on the top ot' the upper circular platform, there will be a corresponding number-ot' magnetic poles, the north marked 'and the south pole l. Now, we will suppose the machineto bein a quiescent state. The galvanic magnet No. l being Opposite the north pole ot' the artilicial mag* nets, the gnlvanic magnet No. Il will, ofcourse, be opposite the south pole Soli, and the galvanic magnets Xus. and l will be -opposite eachother, between thepolesjnst mentioned. There being a corresponding number ot` copper plates or conductors placed below the artilicial magnets'aronnd the shal't, but detached from it as well as l'roiu each-other, with'wires leading vfrom the galvnnic magnets to these plates and in contact with them, as bel'ore t lescribed, these ywires will stand-iu the same position in relation tothe copper plates that the galvanic magnets stand to the artiticial inagnets, but in contact with'the plates.

Neojin order to put the machine in motion, the galvani'c magnet No.2, being changed by the galvanic current passingr from the copper plate ol the battery along the conductors aud wires, becomes anorth pole. while at the same time the magneto. l is changed by the galvanic ycurrent passing .from the zinc Vplate Ot' the battery, and becomesa south pole. 0f course the south-pole ot' the artilicial magnet Xo. 6 will attract the northpole ot the galvanie magnet Xo. 2 and will `more it a quarter of a eircle. r[he south pole ot' the galvani'c magnet No. 4, being at-the same time attracted by the north pole No. 5, causes the said magnet Xo. 4 also to perform a quarter of a circle. The momentum ot the galvanic arms will carry them past the centers of the poles Nos. 5 and that which time the several wires from the galvinnie magnetswill 'have changed `their positions in relation to the copper plates or conductors. For instance, the northpole No. 2

haring now become a south pole by reason of its wire being brought in contact with the conductors ofthe zinc plate, and No. Jhaving in like manner-become a north pole, its wire having changed its position from the zinc plateto thecopper'plate,thepoles of the galranic magnets are, ot' course, now repelled by the poles .that before attracted `them; and ixitliis man-` power as a moving principi@L for machinery in ner the Operation is continued, pmducngn rO- the'lnaunerabove described, or in anyo'ther tary n1`ot o`u'in'the'sinfh Iwhich motioifi is eolsubstantially the same in principle.

've 'ed to 'maeliiner Or't xe )ur iose O )ro we Enig the Smm .5 I- 1 l l l THOMAS DM ELPORT.

The discovery;iiereeciziimed, and desired to W-itilessesr be securedvbyLettemlateut, consists in W. W. AYRES,

Applying magnetic and 'electro-umguetie CMAS. A. COOK.