US1246852A - Electrical apparatus. - Google Patents

Description

1. HUUR.

ELECTRICAL APPARATUS` APPLICATION FILED APR. 28, I9l1.

Patented Nov. 20, 1917.

4 SHEETS-SHEET I..

Patented'Nov. 20, 1917.

4 SHEETS-SHEET 2.

J. BUUR.

ELECTRICAL APPARATUS.

APPLICATION FILED APR. 28. I9II.

Patented Nov. 20, 1917.

4 SHEETS-SHEET 3.

INHUMMF .momma 1. BuuR.

ELECTRICAL APPARATUS.

APPLICATION FILED APR. 28. T911.

4 SHEETS-SHEET 4.

NVENTH v Patented Nov.

UNITED sTATEs PATENT oEEioE.

JOSEPH BIJUE, of* Yortx, N. Y., AssieNcaT'o vEntert,Moron nIGHTING COMPANY', or NEW YORK, N. Y., A ccitronATIoN or NEW YORK.

ELECTRICAL APPARATUS.

Specification of Letters Patent.

Patented Nov. 2o, 1917.

Application led Apri'128, 1911. Serial No. 623,834.

To all whom it may concern.'

Be it known that I, JOSEPH BIJUR, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Electrical Apparatus, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to the generation of electric current upon automobiles as for lighting and the like. One of the objects thereof is to provide a practical and efficient electrical system upon an automobile or in any like relation. Another object is to provide in connection with apparatus of the above type a compact, reliable and adaptable drive. Another object is to provide apparatus of the above nature in which the various elements are compactly disposed, and yet formed and positioned for most effective and dependable action. Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the following claims.

In the accompanying drawings, wherein is shown one of various possible embodiments of this invention,

Figure 1 is a diagrammatic side elevation of an electrical installation for automobiles and associated parts.

Fig. 2 is a sectional view taken on the line X-X of Fig. 3.

Fig. 3 is an end elevation of an electrical generating unit.

Fig. 4 is a side elevation thereof on a smaller scale.

Fig. 5 is a detail elevation of a regulating device.

Fig. 6 is an end view thereof.

Fig. 7 is a sectional view taken substantially along the line Y-Y of Fig. 2.

Fig. 8 is a detail side elevation of a circuit-making device.

Fig. 9 is an end view thereof.

Fig. 10 is a detail plan of a supporting element.

Fig. 11, is a sectional view taken along the line Z-Z of Fig. 10.

Fig. 12 is a side View of a support for brush mechanism.

Fig. 13 is an edge view thereof.

Fig. 14 is a side elevation of brush mechanism.

. Fig. 15 is a sectional view of parts shown in Fig. 11.

Fig. 1G is a side view of a casing with removable panel and associated parts.

Fig. 17 is a sectional view taken along the line A-A of Fig. 16.

Fig. 1S is a side view showing the shape of the field magnet stampings.

Fig. 19 is a detail sectional view of a contact mechanism involved in the regulating device of Fig. 5.

Fig. 20 is a detail view of the contact holder of this mechanism.

Similar reference characters refer to similar parts throughout the several views of the drawings.

Referring now to Fig. 1 of the drawings, there is shown an automobile engine 1 provided with shaft 2, fly-wheel 3, spark-plugs f1 and other accessories. Driven from shaft 2, as by the gearing 5, is a short shaft 6 which leads to and drives a magneto 7, the latter generating ignition current for the spark-plugs 4. Driven from a sprocket 8 on shaft 6 by means of the sprocket-chain 9 coacting with a sprocket-wheel 1() is a generating unit which supplies current to the storage-battery 11 and the lamps indicated p Referring now to Fig. 2 of the drawings, in which this generating unit is shown in section, it may be noted that it comprises a supporting bed 13 having inwardly extending ball-bearings 14, in which is journaled a shaft 15, provided with a gear 16 in a casing 17 and having fixed thereon beyond said casing the sprocket-wheel 10, above referred to.

Mounted upon this bed is the generator proper which comprises a laminated field magnet 18, having secured thereto at opposite ends the casings 19 and 20. Journaled within the inwardly extending ballbearings of these casings is the armature shaft 21, having thereon the commutator 22, and armature 23, and carrying a pinion 24 meshing' with the gear 16, and inclosed by the removable casing 17. lt may be noted that the generator is formed to fit between the bearings 14 and otherwise interlock with the generator bed and may be secured in position as by a strap 25 removably secured to the bed and tautened in place as by the set-screw 26. These parts are so formed and proportioned that as the two sections are assembled, the pinion 2d will mesh properly with the gear 16, and if any slight adjustment is required, it may be attained by the set-screws 27, threaded into the bed and bearing against the lower surfaces of the casings 19 and 20.

Referring now to ield magnet 1S, it may be noted that it is built up of a plurality of imilar stampings, 28, each of which is substantially of the shape shown in Fig. 18 of the drawings. rFliese several stampings, as well as the casings 19 and 20, are held in position by bolts 29, which are provided with nuts 30 at their ends and with shoulders 31 and adjustable collars 32 to confine the stampings. By the arrangement of the field magnet as shown, the magnetic flux is substantially shunted about the driving shaft 15, thus rendering the field entirely independent of the latter and permitting the use of a metal other than iron or steel for this shaft if desired. Also, the shaft, even if of a non-magnetic material, may be brought into the desired close relation to the armau ture shaft without cutting into the magnetic circuit or interfering with the magnetic flux.

Upon the pole pieces of the field magnets, which are slightly beveled away from a concentric surface, as at 33, are the magnet windings 34, 35 and 3G, these windings being formed substantially concentric with the armature in order to economize space.

Coacting with the commutator 22 are a pair of brushes 37, best shown in Fig. 7 of the drawings, these brushes being slidably mounted in removable holders 3S, screwed to the rocker 39, shown in Fig. 12. Pivotally mounted upon this rocker are the levers 40 which bear at their rounded end portions upon the brushes and which are urged toward the brushes by the spring t1 connected with the rocker at By this simple arrangement the brushes are uniformly urged into contact with the commutator, and yet the levers 10 may be swung over into such position as to permit the coacting springs to hold them away from Jhe brushes, as for purposes of renewal.

Formed in the casing 19, at each side of the commutator, is a removable panel 3, best shown in Figs. 16 and 17 of the drawings. The casing is shaped to provide a flange liet, against which the panel rests, and

plates l5, beneath which a pivotally mounted spring et?) upon the panel is turned te iocli the latter in position and urge it inwardly against the flange, Slight irregularities 47 are preferably formed in plates in order to avoid the chance of the spring 46 jarring out of locking position. rFliese panels are substantially opposite the commutator and afford ready access to the brush mechanism and regulating devices, hereinafter described, while completely excluding dust therefrom.

As best shown in Fig. 7 of the drawings, there is provided within casing 19, at one side of the commutator 22, a casing` or switchboard 48 upon which are mounted the substantially identical regulating devices L1-9 and the main switch 50. These regulating devices control the connection in the field circuit of the generator of a resistance element 51 mounted within casing 20, as shown in Fig. 2 of the drawings, the shield 52 being provided to guard the field coils from the heat of this element. rlhe details of the electrical connections for these parts are not shown herein, as they, in themselves, form no part of the present invention.

Recurring to the construction of the regulating devices 19, attention is directed to 5 and (i of the drawings. is shown in these gures, there is provided a magnet having a core 5i formed with an enlarged head or end 55. Secured to the opposite end of core 54 is a support 56 bearing an iron member 57 which has pivoted at its free end an armature 58 retracted from core 5i by the adjustable spring 5.. Mounted upon the magnet adjacent the head is a brass member 60. Formed upon member G0 is a resilient cross-piece G1 provided with a piu G2 having an enlarged head. A similar pin G3 is mounted in the brass pin 31-, with which the armature 53 is provided, as best shown in Fig. 19 of the drawings. ably slipped beneath the heads of each of these pins is a spring member (35, shaped as indicated in Fig. 20 and provided with a recess G6 to embrace the corresponding pin, as well as openings 67 communicating with slot 68 at each end. i/Vithin these openings are inserted the contact members G9, each of which is formed with a shoulder 70. These contact members are inserted within the openings 67 in spring 65, and the latter slipped into position in which it is held by its frictional contact with the parts with which it engages. rlhe contacts are thus readily removable and are yet securely mounted in position and are adapted as the armature vibrates to make and break the circuit at two points. rilhe armature 53 is provided with a counter-weight T1 whereby its action is rendered substantially independent of the effect of vibration and gravity. rEhe distance between the contacts upon member (31 and those upon the armature is adjusted by a screw 72 provided at the free end of the member GO, and it may be noted that the latter member, as well as the con- Sti tacts thereon are insulated from the armature. By this arrangement there are provided two parallel contacts, so that in the event of one becoming worn or pitted, the other may maintain eilicient action of the device, and also the resilient mounting oit' the contacts affords a rubbing action as they are engaged by the armature which tends to keep'them clean and insure a good electrical connection.

Referring now to Figs. S and 9 of the drawings, there is shown a main switch which governs the electrical connection of the generator with the external circuit. This switch comprises a magnet 73 which may have several windings and is provided with a core having an enlarged head 74e. Secured to the opposite end. of this core is a supporting member 75 having pivotally connected thereto a balanced armature 7G. This armature bears a removable slotted contact 7T coacting with a fixed contact T8, these parts being so insulated and connected as to control connection with the external circuit. The supporting member 75 is secured to a brass piece 7 9 which holds it in position and spaces it from the supporting wall indicated at 80, and between these parts is positioned an adjustable retracting spring 81 tending to swing the armature away from the core to a distance limited by a brass stop Si), held beneath the magnet core and extending over the armature as at 83.

1With reference to such electrical connections as are involved in this invention, it may be noted that each brush 37 is provided with a iexible conductor Sli terminating in a pin 85 which slips within the perforated post 86, as best shown in Figs. 7 and 16 of the drawings. These connections are readily accessible from the removable side openings of the casing 19- and permit the ready renewal of the brushes should such action become necessary. Leading from one of the posts 86 to the switchboard 48 is a conductor 87 and the return connection is through the flexible conductor S8 and pin 89 to a post 90. From the remaining post 86 and the post 90 connections lead to the line as indicated at 91.

In Fig. 16 of the drawings, there is diagrammatically indicated the method of connection from .the body of the generator to the switchboard 118, the end casing being partially withdrawn. from the field magnet in order to disclose the structure more clearly. The conductors leading from the body of the generator are diagrammatically indicated at 92 and the corresponding conductors leading to the switchboard are shown at 93. These several conductors are provided with the connections shown at 94 which are substantially opposite the openings in the casing 19 and are thus readily accessible upon a panel being removed.

In the use of the apparatus it will be seen that the generating unit will give the desired high speed of the armature with a relatively low speed of the sprocket 8, and hence it is unnecessary to a large driving sprocket upon the shaft G which might be impracticable by reason of the space which it would consume. This driving mechanism is thoroughly protected and the gears may run inA oil, and yet the parts, while compactly disposed and securely held, arereadily disassembled, as by loosening the set-screw 26 or removing the strap at one end from the bed 13. rlhe ield construction is extremely simple and inexpensive, and yet permits such a shaping as to conserve space without a sacrifice of efiiciency and gain a self-contained construction. rThe two end casings are readily removed, if removal should prove necessary, but the side panels permit access to all of the parts which would need in spection or attention under any conditions, and hence removal of the casings is rarely required. The brushes are held in proper position and yet may readily be removed and renewed, and the mounting of the regulating apparatus, as shown, not only protects it against injury by blows or by the entry of foreign matter, but brings it adjacent the brush mechanism, and thus gathers near a single point all of the parts which may need attention. The construction and action of the main switch will be clear from the above description and the mechanical action of the regulating clement has already been described.

It will thus be seen that there is provided apparatus of a` compact, and yet simple, construction in which the several aims of this invention are achieved.

As many changes could be made in the above construction and many apparently widely different embodiments of this invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the language used in the following claims is intended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention, which, as a mattei' of language, might be said to fall therebetween.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In electrical apparatus for motor vehicles, in combination, an electrical generating and regulating device, comprising an armature, field magnets and means for retaining said parts in assembled relation, a casing, means for removably mounting said casing on a part of said generator, automatic electromagnetic regulating means including an automatic cut-out and a voltage regulator located entirely Within said removable casing, and secured thereto, said mounting means being operable from the exterior for mounting and for removing said casing with its inclosed parts :trom the rest of the construction, and detachable means for connecting said regulating means to said generator.

2. Combined electric generating and regulating apparatus comprising a generator body portion having ield magnets and an armature mounted therein, driving means at one end for said armature, a commutator at the opposite end of said armature, a separable longitudinal extension at said latter end having' a lateral opening opposite said commutator, regulating apparatus for said generator mounted upon and housed by said extension, and releasable connections from said regulating apparatus to the generating apparatus.

3, Combined electric generating and regulating apparatus comprising a generator body portion having a field magnet and armature mounted therein, a bearing for one end of the shaft of said armature, a separable longitudinal extension at the opposite end of said armature, an internal annular shoulder integral With said extension, a bearing in said chamber for the adjacent end of the shaft of said armature, regulating apparatus for said generator mounted upon and housed by said extension, and releasable naaesas connections from said regulating apparatus to the generating apparatus.

4i. Combined electric generating and regulating apparatus comprising a generator body portion having a field magnet and an armature mounted therein, a separable longitudinal extension one end of said body portion, a commutator connected with said armature and extending into said extension, a bearing` formed in and supported by said extension Within its length, whereby the total length oi3 the apparatus is reduced, and regulating apparatus mounted upon and housed by said extension and releasably connected with the generator.

5. Combined electric generating and regulating apparatus comprising a generator body portion having a field magnet and an armature mounted therein, a bearing at each end oi the shaft of said armature, regulating apparatus iior said generator, releasable connections between said regulating apparatus and the body or said generator, a commutator, and an integral extension separably secured at one end of said body portion surrounding said commutator, having said regulating apparatus mounted thereupon and housed thereby, supporting one of said bearings and having therein a lateral opening substantially opposite said commutator.

ln testimony whereof l a'iiiX my signature, in the presence of two Witnesses.

JSEPH BiJR. lVitnesses L. A.. iVArsoN, Norris PERRY.

Copies of this patent may be obtained for ive cents each, by adressing the Commissioner of Patents. Washington, E. C.

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