Decatur Daily Democrat, Volume 18, Number 86, Decatur, Adams County, 10 April 1920 — Page 2

Section One.

/* :*L I 0T- ’*W^t||\^'. Jfc 1 / ' XAgsr O. B. RINEHART Chairman Reception Committee

/ — If It’s Electrical In any way we have it in stock—from a small lamp socket io a large or small General Electric .Motor. We carry in slock and can take care of your immediate or future needs for home or building wir- • ing, also fixtures of any and all kind. Electric Carpet Sweepers Electric Fans Washing Machine ” Motors Sewing Machines ” Meters Heaters ” Light Fixtures Stoves ” Irons Toasters ” Vibrators Perculators ” Chafing Dish Curlers “ Floor Lamp Water Heaters ” Stand Lamp. We have in stock all these different electrical appliances, you can see them and we will be glad to demonstrate them to you. When you need a-vthing Electrical think of . .. Schafer Hdw. Co. at iUliiv'.’lLLtl We Save You Money?"’"* - j

Confidence I Even in these days when the motor car field offers such wide selection — the public still finds Buick demands exceeding Buick production. Thus it is easy to recognize how steadily, each season, the Buick Valve-in-Head motor car has become an essential part in the lives of men and women—as well as in the progress of commercial and professional activities. It’s superior quality—service—economy and dependability are causing thousands of persons to place their orders for car delivery months in advance—thus protecting themselves and assuring their ownership of this world-wide preferred motor car. Ju Pncca f. a. fr. Flint, Michigan . 53235.<» Mod*lK-49 • <1865.00 doda. f ”5 ' - ....MM. —i .! - - ■ - - - - - t ~ - ■ -■ ■ -■ - - r - \ 7.- n better •• built, Buick will build them PORTER & BEAVERS Buick Distributors. Automobile Tires and Accessories Corner Monroe and First Streets

Page Two

v ; AUGUST KAYSER Mechanical Display >

DECATUB DAILY DEMOCRAT. SATURDAY, APRIL 10, 1920.

AN ENGINEERING HISTORY OF SMALL MOTOR ANO STAGES IN CONSTRUCTION MOTOR SHOWN IN FOLLOWING ILLUSTRATIONS WAS FIRST DESIGNED ABOUT 1846— THE MOTOR MADE AT THE LOCAL PLANT IS ONE-FOURTH IL P.

•The powerful magnetic actions which the electric c urrent is capable of proclacing, have lead to the idea of applying them as a moving power. The figure ill shows au apparatus which is well adapted to exhibit the manner in which a continuous motion may be produced by the magnetizing action of an (electric) current. -Mu' ■* # f t j lii! i ’ll kliiLl SB .g V ' ■ «• View number 1 of Motor to be made here. AB is a piece of soft iron, curved into the form of a horse shoe, and fixed to a stand, being encircled by a copper wire. Within A Bis a similar smaller (element! CD. which rotates al out a vertical axis. This iron CD is likewise encircled by copper wire ini the .‘manner indicated, the two ends! of the wire being plunged into a wooden ring-sluped cha’afiei filled with mercurf. This channel is divided into two parts by means of a wooden er ivory partition. The ; two partitions must now be filled with mercury to such a height that the level may project beyond the partition walls, although not so as to pass fyoin.yjy?, space to the other. The, tw oends of the electro nta”,acE<5D jwjmtrates sufficiently far into the vSSseT s* gs to <Jip into the mer cury on either sfdejpf the partitio wall, tyjt in such, a manat, r as to ad uwt. of their passing f*ee» over ■

during the rotation of the electromagnet. in the position of the electro magnet CD shown above, supposing the plus pole of the (battery* be con- ' nected at c and its negative pole .it d. the current will pass from c to the left dvision of the channel, from whence it will go through (he copper wire round the moving horse shoe from D to C, then into the right division of the channel and from thence to cl. In this position the pole C will lie attracted by A and I) by B, by which a rotary motion of the electro magnet CD will be induced. But now when C roaches A and D reaches B, the two ends of the wire of the inner electromagnet will pass over the partition wall; the current that makes CD magnetic will be interrupted for a moment: as soon however, as the ends df the wires have passed from on div) cion into the other, the current will go in an opposite direction through the copper wire encircling CD, the pole C will then be repelled by A. and D by C whilst C and B and D A will arraet each other, thus the rotation of the inner electro <gnet will be continued until C comes to B and D to A. By continued invasions of the p< les of the inner, electro-magnet, the ' rotation of the latter will be continued.” The above is an extra< t from an old text book edited by Prose sor Mueller of the. University of Freiberg in the year B4S. The figure illustrate* and I the description explains th* working principle of the first f rm of electrical nutor as the wonad field type, in principle it I? substantially the same as present design of DC motor. This motor was demonstrated about the " TCWOTTStIU ’A ■ gtri'Ti— rrt th" sketch will indicate to the reader that this meter was loaded by means of a weight, a speed reducing gearing being used to increase its ability for lilting. Its work capacity was verymeager at best. ’Since the date of ti e invention of this form of an electric motor, the apparatus hns been cj ‘veloped by aseries of evolutions Whereby its status has been changed i from that of a mere toy. demonstrating a scientific principle to a practical device utilized in practically every lisps hold, where electric current is I ! ’|le first electric motors built vaffed tn sizes from 1 to 5 hp. and were used tor miscellaneous applications M.ch as driving jack shafting or Indi. iduaJ machines. but the electric fan was the first practical application of j the small motor. The first fan motors 1 were of the direct current tvpe. I. e.. they operated on a current of undirected voltage, such* as is delivered by a storage battery ; This motor con-1 sisted of two esseuiial elements—the field or stationary part and the motof or rotating nart. The field or stationary element was madr up of cast iron having two I shaped protruding arms dr poles. Around the yoke between these poles was. wound a coil of wire known as the field coll. This coil when excited by an electric current magnetised the magnetic circuit producing the magnetic flux so necessary to the operation of the electric motor. Figure No. 2 shows a motor of this type, used for driving a fan. This motor was built ahott the year 1593. - - -1 ■ ■ w ■I I I .1 ii. ii' 11, I . ..1 —— —4-* View number 2 of Moto- to be made here. The armature or rotor;—the rotating part, constated ( ’’ sheet steel laminations stacked on a steel shaft; wound into the slots of these laminaj tions were ooils of copper wire, thp end* of which terminated in small copper segments. These segments . while carefully insulated from each other aud other metal part* of the rotor were carefully bound together, forming a ring of copper bars commonly known as a commutator. An

elo trie current conducted into tin* motor by means of brushes resting in contact with these bars flowed through the windings of the rotor, always in the right direction to proper-, ly react with the magnetic flux In- | dat ed by the field coll, thereby prodmiiiK motion. This motion was continuous by virtue of the reversals of current in the coils accpmplished by the commutator as shown by Fig. (1) above. It will be noted that the rln? of copper bars perform the function of the mercury channels used with Professor Mueller's motor. ' ~~~ I V ■' rjI . I I View number 3 of Motor to be made here. Sketch (3) shows one of the early fc ms of direct current fan motors ba it by the Fort Wayne Works of th General Electric Company, about the year of 1905. The reader will m. e the ornate character of the desi; n of this motor and its pedestal. Electric fans were at that time a luxury rather than a necessity and considerable attention was then paid I Continued on page 7. section 1).

Detroit Jewel Gas Ranges| “They Bake Better’ The ‘‘Last Word” In Gas Ranges An easy range to keep clean because all parts are either Ebonite oi Porcelain baken-on finish, or Nickel. No stove polish. A cloth cleans it. A range that makes it easy to keep the kitchen clean because it has high legs—easy to sweep and mop under—sanitary. The cooking top is big and roomy, the baking oven and broiler are placed on one side, out of the way, shelves are handy—no stooping or stretching. Do not miss seeing these stoves. Northern Indiana Gas & Electric Company "The Gas Company” W. S. .O'Brien, Mgr. T ?, j •? ■ —TB—finm - —ii ■ll ' JF-WHfv - I- ’A VfL

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