US1712533A - Electric motor - Google Patents

Description

May 14; 1929.

W. G. WAGENHALS ELECTRIC MOTOR Filed April 8, 192.7

ma@ u@ BY 7 A TTORN Y.

Patented May 14, 192.9.

UNlTED STATES 13123533 PATENT GFFMI.

WILLAM G. WAGENEALS, OF DETROIT, MICHIGAN.

ELECTRIC MOTOR.

Application filed April S,

The present invention relates to electric niotors and n'ioi'e especially to sinall power motors 'tor operation ol advertising devices, toys and the like.

Among the objects of the invention is a motor which shall be economical to produce and assemble and simple to adjust and operate.

Other objects will readily appear to those skilled in the art upon reference to the tollowing description and accompanying drawing' in which l L is av plan view of the n'iotor;

itig. 2 is a side elevation; and

Fig. 3 an end elevation thereof.

is indicated the motor will preferably be mounted on a base and comprise a traine nieinber 11 which is in the torni of a longitudinal lower part 12 adapted to be secured to base 10 and having` tour upright portions 13, 14, 15 and 16. Uprights 13 and 14 are intermediate the ends oi' part 12 and are provided with openings near the bottoni tor the passage therethrough et a core which supports between 13 and 1 4 a coil 21 preierably wound tor ordinary house lighting' current. The core 2O being preierably fined in place by a set screw 22.

N ear the top oi uprights 13 and 14 is a cross ineniber joining the uprights and furnishing' means for the support of an insulating cieli et, the supporting means being, for enaniplej a laterally extending` lug upon which the shelf 2li is secured by screw 26. ln shelt' 24 are two bindingposts 52T and 28 to which may be secured the current leads :29.

Upright member 15 is preferably provided vith an upper extended surface upon which is secured as by screw 37 another insulating` sheliC 36, and at one end of this shelf` mounted a stop piece 38 lniving;I an elevated horizontal arni 39 in which is an adjustable stop screw 40. At the other end or shelf 36, is lined a spring arin l5 eXtending' longitudinally ot the shelf to beneath stop screw AIO. This spring' arin carries one el a pair of contacts indicated at 165 the other e7 oi the pair being carried on the shelt 36 and being; electrically connected. to a binding post 41S.

hlounted in suitable bearings in the upper oi nprights 13 and 111- is a shaft 55 which extends a short distance beyond upright 1iand extends beyond upright 13 to a point over shelf 36. 0n the latter pro- 192'?. Serial No. 151,952.

n piece 5T is inade ot' insulatingniateof such ay size that its corners p Y to press down the spring` arni l5 it; together contacts d6 and L17.

s shown ber-it in liig. 2, shelf 36 is spaced iran upright 125 and the end of core 2O so that the arnis et spider inay 1 ass between there a d these arius are of such len to pass over the end ot the core 20. i

Spider 5G preferably of laminated coin struction and is fairly heavy so as to produce a ilywhcel el'lect to carry over the ...io-- tion i'roni one impulse to the next.

The electric circuit through the iuotor is one lead 29 to landing post L8 then to i Freni the coil the circuit through 1i ',ction GO to binding' post 1S on shelll 3G a l to contact Il?. From the other contactetG the circuit is through spring' arm and connection G1 to bindingl post 2 and the other lead 29. Bringing together "therefore, the contacts 4&6 and et? energiees the coil 21 and inagnetizcs core 20. rlhis then draws one of the arnis ot' spider 56 over the core, but when the arin is opposite the coro the correspending` corner of cani 57 is releasing' the contacts and breaking); the circuit. llilalithe arinatnre suficiently heavy to 'e flywheel ellect permits to have s icicnt nionientuin to bring' the next arni around tar enough to enter the iield of inliuence oi' the core when a new Contact niade.

The present inotor is intended chiefly to operato light devices such as toys and advertising; devices and a rotatingl part of one ot the latter is indicated at 70, with the inotor operatively connected thereto shown` The conne( ino' incans shown consists al? a 7l connected to sha'lit by nie' of a universal joint 72 which as shown is a short length of rubber tube. Sha'l't il supported in a bearing' inan upright a rui (in the projecting` end of shari; i ond piece ot rubber tube torni- .ng a friction drive eleincnt for nieniber 70. in order to hold the parts 7() and 75 toether5 sniall bracket 76 may be secured to base 10 and a springg` connected thereto and to hinged arin 73.

Having now described the invention and the preferred forni oil embodiment` 'thereof it is to be understood that the Said invention is to be limited not to the specific details; herein set forth and illustrated but only by the Scope of the claims which follow.

I claim:-

An electric motor comprising a base, sino-lc coil horizontally mounted thereon and ha* .i a rotatable shaft mounted on above ,mld coil and parallel vvith the core and carrying an armature in the forni of a tlirerarnied Spider' so positioned that rotation of the sha'lt brings the arine in turn close to one. end oil l core, incaneC to :Supply currer, to sai-d coil and means to complete the circuit thcrethroiuh as an erin is approachiA said core and to break l@he circuit as said arm is receding Jlroni said core.

2. An electric motor compi-ie* Y' gated base having uprights inter ends, a core carried bv said upi eupporting a coil therefor, a shaft in bearings in said uprighte` and carrying a three pole armature near one end, Said armaan elon di ate its ture poles adapted to pass near one end of said core, a triangular cam also carried by said shaftand having its corners arranged Somewhat in advance of said armature poles, spring contacts adapted to be pressed together by said corners, Said contacts being in Series; connection with Said coil, and current leads to said coil and contacts respectively.

8. An electric inotor comprising an elongated base having uprighte intermediate its en( S7 a core carried by said uprightfs and supporting a coil. therefor, a shalt rotatable in bearings in Said uprights and carryingr a three polo armature near one end, said armatore poleav adapted to pass` near one end of said core, a triangular cani also carried by said shaft and having its cornere arranged Somewhat in advance of said armature poles, Spring contacte adapted. to be prcascd together by said corner Vraid contacts being in Series connection with' said coil, current n ie: to Said coil and contacte respectively nd means at one end of said shaft for Yianslnitting power to a driven de vice.

WILLIAM G. VAGENHALS.

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