US498577A

US498577A - Electric locomotive

Info

Publication number: US498577A
Authority: US
Publication date: 1893-05-30
Anticipated expiration: 1910-05-30

Description

(No Model.) 48heets-Sheet 1. A. SGHMID. ELECTRIC LOGOMOTIVE.

No. 498,577. Patented May 30, 1893.

INVENTOR,

Cam-4w 1%; Atwy (No Model.) 4 Sheets-Sheet 2. A. SGHMID. ELECTRIC LOGOMOTIVE.

No. 498,577. Patented May 30, 1893.

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(No Model.) 4 Sheets-Sheet 3.

A. SGHMID. ELECTRIC LOOOMOTIVB.

No. 498,577. Patented May 30, 1893.

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No. 498,577 Patented May 80, 1893.

WITNESSES: INVENTOR,

- UNITED STATES PATENT OFFICE.

ALBERT SCHMID, OF ALLEGHENY, ASSIGNOR TO THE \VESTINGHOUSE ELEC- TRIO AND MANUFACTURING COMPANY, OF PITTSBURG, PENNSYLVANIA.

ELECTRIC LOCOMOTIVE.

SPECIFICATION forming part of Letters Patent No. 498,577, dated May 30, 1893.

Application filed November 16, 1891. Serial No. 411,979. (No model.)

To all whom it may concern.- ject from the upper side of the frame A at one Be it known that I, ALBERT SCHMID, a citiend, and theselugs receive corresponding lugs zen of the United States of America, and a (1 formed upon the upper portionfof the fieldresident of Allegheny, in the county of Allemagnet of the motor. The two parts are 5 gheny and State of Pennsylvania, have inthen hinged together by means of a bolt. In

vented certain new and useful Improvements like manner lugs e are formed on the under in Electric Machines, (Case No. 453,) of which side of the frame on the end opposite the lugs the following isaspecifieation. (Z, and the corresponding side of the lower The invention relates to the construction of portion f of the field-magnet is provided with 10 the class of electric motors especially adapted lugs c which are hinged to the lugs e by a for propelling street cars. bolt passing through all of the lugs. The

The object of the invention is to produce an field-magnet sections when in position are efficient well-protected, durable slow-speed bolted together by means of bolts 7t extending motor. It has been customary to propel street through suitable lugs formed in the castings 15 cars by means of electric motors geared to the for that purpose. A link b may be fastened axle of the car through an intermediate gearinto the upper portion f of the field-magnet ing. It is desirable to reduce the number of in order to lift it and turn it back upon its gears required, but this necessitates that the hinge when desired, and when the bolts It are motor itself should run at a slower speed. loosened. 20 By my invention the motor shaft may be It will be understood that by placing the geared directly to the axle of the car truck. hinging lugs at opposite ends for the upper The invention involves numerous improveand lower portions of the field-magnet, each ments in the details of construction of the section maybe readilyswungback or outward motor and its frame. These will be described when it is desired to obtain access to the ar- 25 in connection with the accompanying drawmature. The lower section is shown as being ings. hinged to the portion remote from the axle In the drawings, Figure l is aplan and Fig. of the car. This feature is of importance as 2 a side elevation of a car-truck equipped with it allows the section of the field-magnet to two motors. Fig. 3 is aplan of one of the moclear the car axle when turned back.

3o tors. Fig.4is a sectional elevation of one of Each section of the field-magnet is prothe motors, the section being taken through vided with two inwardly projecting polethe side of the frame. Fig. 5 is a vertical pieces g. The field-magnet coils for these transverse section showing the motor upon pole-pieces are wound apart from the motor the axle. Fig. 6 is a detail. itself upon suitable spools and then placed 5 Referring to the figures, Arepresents a 1110- over the poles and there held in position by tor frame within which the motor itself is earmeans of suitable bolts K, which extend from ried. This frame is constructed with two the spool through the field-magnet frame. bearings a for receiving the armature-axle They maybe supported in any other suitable andwith bearingsbnearoneend for receiving manner. I usually prefer to make the in- 0 0 the axle of the ear. These bearings are formed wardly projecting pole-pieces of such dimenin the lower side of the frame, and the bearing sions as not to extend to the extreme edge of blocks a and b are bolted beneath the frame the field-magnet frame, so that a sufficient for holding the parts in position. The end of portion of the field-magnet frame juts out the frame which is remote from the car axle is beyond the sides of the pole-pieces to cover 45 supported from the truck frame a by suitable the armature coils.

springs or cushions A The armature H is mounted upon a suitable The field-magnet G is cylindrical in form shaft passing through bearings a and it is and is constructed of two semi-cylindrical provided withasuitable commutatorhagainst sections f, f These sections are respectwhich commutator brushes 7o, 70, are held in 5c ively hinged to the frame at opposite ends any suitable manner. For the purpose of thereof in the following manner: Lugs (1 proshielding and protecting the motor com mutator and the corresponding end of the motor a metal shield Qin the form of a section of a cylinder is placed at the end of the lower portion of the field-magnet and it may constitute a continuation thereof. In this manner dirt and dust are shut away from the motor. A plate or guard P may protect the upper portion of the commutator and end of the motor.

Gear casings, R, such as are described in my patent No. 442,459, dated December 9, 1890, and Design Patent No. 20,481, dated January 13,1891, are also provided for incasing the pinion r and gear wheel R which are respectively carried by the armature shaft and the car axle.

I claim as my invention 1. In an electric motor, the combination of a supporting frame, a field-magnet formed in two sections, one section hinged to one end of the frame and the other section hinged to the other end of the frame.

2. In an electric motor, a supporting frame for carrying the armature and field-magnet, said field-magnet being constructed in two sections, one section being hinged to the said frame upon its upper side at one end, and the other section being hinged to the said frame upon its lower side and at the other end.

3. In a motor for street cars, the combination of a field-magnet formed in two sections, a frame, to the opposite ends of which said sections are respectively pivoted and bearings formed in said frame for receiving the axle of the car.

4C. In a motor for street cars, the combination of a cylindrical field magnet having inwardly projecting poles, said field magnet being formed in two sections, a frame to which said sections are independently hinged and bolts normally holding said sections together.

5. In a motor for street-cars, a cylindrical field-magnethavinginwardlyprojectingpoles, removable separately-wound coils carried by the respective poles, said field-magnet being formed in sections, a frame to which the sections are pivoted upon opposite sides and at opposite ends, substantially as described.

6. In a motor for street cars, a frame consisting of side bars and the cross bars at the front and rear ends, one of said cross bars having hinging lugs mounted upon its upper side and the other having hinging lugs mounted upon its lower side.

7. A frame for electric motors consisting of a single casting having upwardly extending hinging lugs at one end and downwardly extending hinging lugs at the other end.

S. In a frame for electric motors for street cars bearings for the car axle at one end, and hinging lugs upon the under side of the frame at the other end.

In testimony whereof I have hereunto subscribed my name this 6th day of November, A. D. 1891.

ALBERT SOIIMID.

Witnesses:

JAMES W. SMITH, CHARLES A. TERRY.