This was followed by the projecting in New York of the present Duane Street station, employing boilers of 200 pounds pressure, triple and quadruple expansion engines of the marine type, and direct-connected multipolar dynamos.
The field magnets in the multipolar machine usually are arranged in radial position around the entire circumference of the revolving armature, and are held in a fixed circular frame.
DB] "The processes which arise from a multipolar nerve cell as a rule divide and subdivide as they pass away from the body of the cell, until at last they give rise to branches of extreme tenuity.
Gerlach has described the protoplasm processes of the multipolar nerve cells of the brain and spinal cord as forming an excessively minute net-work, from which minute medullated nerve fibres arise.
CZ]" When we pass next tomultipolar cells, we have the following explanations.
One at least of the processes of a multipolar nerve cell does not branch, but becomes directly continuous with a nerve fibre, and has been named the axial-cylinder process.
DE] From these statements, it is easy to judge what value can be attached to the conjecture that multipolar or pyramidal cells are to be regarded as "mind-cells.
In a multipolar field, the ring will need multipolar connections alternated at points corresponding to the pitch of the poles.
They are made multipolar because it is desirable that the frequency be high.
In a two pole machine, the frequency is the same as the number of revolutions per second, but in multipolar machines, it is greater in proportion to the number of pairs of poles per phase.
If the connexion is only with one, the vesicle is called unipolar; if with two, bipolar; if with many, multipolar or stellate.
They also permit influences that are coming through many different channels into a multipolar vesicle to communicate or mix with one another, and combine to produce new results.
These multipolar motors have a peculiarity which may be often utilized to great advantage.
The grey matter of the medulla oblongata, which contains numerous multipolar nerve cells, is in part continuous with the grey matter of the spinal cord, and in part consists of independent masses.
The large granule cells aremultipolar cells, many of the branchings penetrating well into the molecular layer.
The several brush-sets of the multipolar lap-wound machine may again be reduced to two by "cross-connexion" of sectors situated 360 deg.
But for many purposes, especially where the voltage is high and the current small, it is advantageous to add together the inductive effect of the several poles of the multipolar machine by throwing the E.
In the ordinary multipolarmachine with as many magnet-coils as there are poles, each coil must furnish half the above number of ampere-turns.
The former deduction averages about 7 to 10% of the gross length, while the latter, especially in large multipolar machines, is an even more important item.
Its application to themultipolar machine is easily followed from fig.
The multipolar lap-wound armature is obtained by simply repeating the bipolar winding p times, as indicated by the dotted additions of fig.
Corresponding to the number of pairs of poles in the multipolar alternator, it is evident that there may also be an equal number of coils as shown diagrammatically in fig.
In multipolar machines what points are connected by equalizer rings?
In multipolar machines there are as many brushes as pole pieces.
In modern multipolar machines, such complicated windings are avoided, and the several sets of brushes are connected together in two groups, positive and negative.
It is of multipolar construction, having six pole pieces.
End view of drum armature of a multipolar machine showing one coil in position to illustrate the angular pitch or spread of drum coils.
It is a less easy matter in the case of drum winding, especially for multipolar machines.
How are the brushes held in large multipolar dynamos?
In multipolardynamos the positions vary with the number of poles and the nature of the armature winding.
But it differs from these, however, in the details connected with the coupling of the wires, from the very fact that the features of a two-pole machine are not found exactly in a multipolar one.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "multipolar" in a variety of sentences. We hope that you will now be able to make sentences using this word.
