USRE8796E - Improvement - Google Patents

Description

2 sheets-sheen 1.

O HEIKEL Magneto-Electric Machine.

Reissqed July 8,1879.

PATENT FFICE.

OTTO HEIKEL, OF JERSEY CITY, NEW JERSEY.

IMPROVEMENT I'N MAGNET'O--ELECTRIC MACHINES.

Specilcation forming part of Letters Patent No. 155,376,

July

dated September 29, 1874 d;k Reissue No. 8.796,-dated B, 1879;4 application filed January 1SZ 1879.

To all whom it may concern:

Be it knownthat I. O'r'ro HEIKEL, of Fin land, n ow residingin Jersey City, in the cpunty 0f Hudson and State of New Jersey, have invented anlmprovementin MagnetoElectric Machines, of which the following isa specilieation.

I make use of a stationary magnet and an induction-coil Vthat is revolved by mechanism, to produce an electric current for medical and other purposes.

'Magnetic motors and engines have been made in which the'armatures are revolved by the attraction ofelectro-magnets, and magnetoclectric machines have been constructed in which the induction-coils have been revolved contiguous to permanent or electro magnets.

My presentim'ention relates toa peculiarconstruction of' mnltipolar induction-coil, in which four or more softiron -wings or Hat cores sur.- round the central sh'af't, and upon the whole of these wings or arms the insulated wires are wound, so thatthe spaces between the wings are iilled up, or nearly so.' Thereby a very great length ot' wire is introduced. into a small space, and the ediciency ofthe instrument is greatly promoted, and a powerful instrument made in a small compass. I also adjust the permanent magnet in its position relatively to the revolving induction-coil, so as to vary the intensity ofthe current.

In the drawings, machine com plete.

Figure 1 is a `plafn ot' the Fig. 2 is a central sectional view. Fig. 3 is a section of the wings of the induction-coil. Fig. 4 shows such wings in their relation to a Fig. 5 is a similarvew, showing permanent magnets at opposite sides of the induction-coil. Fig. 6 is an end viewy'and' Fig. 7 is a section, of s'uch induction wings or armatures with electro-magnets around them; and Fig. 8 is an end view ofthe armatures and four permar ent magnets.

The metallic cores or wings a arc upon a shaft, l, that is set in suitable bearings and revolved by power. Theends of the wings form armatures b, and the Wheel E on the gudgccn or center F and a band to the pulley are represented for giving motion to the induction-coil.

The electro'or permanent magnet M is 0f ordinary construction, except that its polesarel curved to be contiguous to a portion of the path described bythe revolution of the indue` tion-coil armaturesa; and'l remark that when an electro-magnet is employed the current is derived from anysuitable source-such as a battery, or from the electricity induced in the machine.

With the electromagnet shown in Figs. 64 and 7 the inductioncoils may be'numerous and placed on one shaft, and itis 'betterto position those induction-coils that are connected to the helix of' the electrolmagnet intermediately, as indicated by dotted lines in i wings forming the cores are placed lengthwise ofthe shaft inrows.

The commutatorl or. circuit-closer is of any suitable character. I have shown the same as composed of two insulated rings, c, upon the shaft B, against which forked springs C rest, that are connected with the binding-screws and ycomlucting wires or cords, and the ends ofthe wires ofthe induction-coil connect with these respective circuit-closers C 4and these disks c are star or cam shaped, so as 'to'close the circuit bycoutact-with the springs, as usual, in commutatnrs.

permanent magnet of plates.A

The pe'culiarity ot' 1ny'induction-coil will be understood upon reference to Figs. 1, 2,' and 3. The arms or wings a a, forming the cores, are at right angles to each other, and lterminate as segmental armatureheads b. The insulated wire is connected at one of its ends to one of the rings of the circuit-closing disks c, and wound upon the cores. lt is best to wind one layer of wireout andjback upon onearm a, then one layerout and back upon the opposite arm a, and then iirst one and then the other of the remaining arms is Wound. Then the operator commences a second layer upon the arm yfirst covered, and applies that second layer to all. the arms successively, in the original order, then a third layer, and so on until the entire four arms are filled in, as seen in Figs. 1 and 2.

Of `course the coils of wire around -one flat core lie contiguous to those around the adjacent flat core, and assume a conical form outwardly from the base of the arms, where they unito with the shaft; and thehelices, wound as aforesaid around the four flat cores, form a compound induction-coil, the outer ends of Fig. 6. The ltlat'` the wire being lunitedwith the circuit-closing or more of these groups side by side` on one disks. This form 'of induction-coil-revolving shaft lto increase 'the strength of the machine armature is very compact and eicient. or to generate separate currents.

Inorder to vv-ary the intensity of the current Revolving armatures have had four square, or shock, the magnet M is made adjustable in or nearly-square, arms placed radially; and in relation to the revolvinginduction-coil. This ,other instances the armature has had two long is accomplished bythe screw f, that passes poles, the helix being around the at core. In through the bend. of the magnet into a block these cases there are not any dat faces of opon the base G. Hence the, magnet is held; posite polarity with the helix in the intervenbut its poles can be moved farther from or ing space. I find that-.fthe surfaces of the long nea-rer to the revolvingv induction-coil, and armatureeores being at opposite sides of the thereby the intensity of the shock or current space occupied by the helices, there is an action is determined. and reaction that intensities the magnetism In' this magneto-electric machine the ilatand the secondary current set upin the helices, tened cores stand radially and lengthwise of I claim as my inventionj the shaft in a plane passing through the axis l. The revolving induction-coil Iliade of the of mot-ion. The wires of the helices at the -sides four or more tlat cores or win gs a and heads b, ofthe flattened cores pass transversely through upon all of which cores or wings a continuous the magnetic field of the stationary magnets, insulated wire is woundv in the successive layand there being four or moreot these cores, ers, substantially as and for the purposes setl the maximum inductive effect is obtained and forth. Where several flattened coresare placed length- 2. [n a magneto-electric machine, four or wise of the shaft, as in Fig. 7j, there are numermore iiattened armature-cores, radiating from ous separate heliceson the one revolving shaft, one common core or revolving shaft, and their energized by one set of fleld-of-force magnets, helices, in combination with twozor more fieldihe cores ofwhich are tlat or extended in the of-t'orce magnets, the flat cores of which corresalne direction as the armature-cores. By ar spond in position withthecores of the helices, ranging the field-of-force magnets with the 'substantially as set forth. same poles in contact or adjacent, as in I1`ig. ,y In a magneto-electric machine, two or 8, the magnelicvelds of each polarity areenmore groups of armature-cores, placed side by larged and their strength increased, andthe side and lengthwise of the revolvingshat't, each induced current isincreased', and the `poles of. group of armature-cores being:r composed of the magnets are of the same shape at the enfour or more radial cores from one common tering and leaving sides, and the magnetism core, and having a'helix around each-core, in is inoreuniform than it is when the poles are combination with` the tield-of-forcel magnets, curved, as in Fig. 5, because one edge ot' each the cores -of which are sufficient-ly long in the poleis alternated and the other edge is abrupt; direction of the axis of rotationto extend over hence the magnetic actions will be different. all the groups of revolving armature-cores, sub- In Letters Patent No. 94,014 the cores of the stanti-ally as specified. revolving armature are connected in .pairs and 4. Four' or'mor'e ield-of-force magnets eninsulated from the adjacent pairs of cores; tirely surrounding the revolving armature# hence there is no magnetic action between one cores, and connected so that the same poles of pair of cores and the next pair, the magnets are together, and they alternate 1n mymagneto electric machine all the cores iu polarity around the revolving armatures, are axial-#that-is, their longest measurement substantially as set forth. is. in the direction of the ,axis of revolution, Signeduby me this 15th day of January, A. and each core radiates from a common ctore o il D. 1879.

central shaft. Thereby the magnetism o cac core acts, through the common central core, to OTTO HEIKEL' intensify the action of the adjoiningcores, and Witnesses:

each set of armatnrecores, having one common GEO. T. PINGKNEY, central core, form lone group, andI place two CEAS. H. SMITH.'

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