US609977A - Albert sciimid - Google Patents

Description

No.609,977. Patented Aug. 30, I898. A. SCHMID.

ELECTRIC RAILWAY MOTOR.

(Application filed Kay 10, mm.

(No Model.)

Akin.

INVENTOR.

dam/W ATTORJVE UNITED STATES PATENT OFFICE.

ALBERT SCIIMID, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE VEST- INGHOUSE ELECTRIC AND MANUFACTURING COMPANY, OF SAME PLACE.

ELECTRIC RAILWAY-MOTOR.

SPECIFICATION forming part of Letters Patent No. 609,977, dated August 30, 1898.

Application filed May 10, 1894. Serial No. 510,674. (No modeld To all whom it may concern:

Be it known that I, ALBERT SOHMID, a citizen of the United States, residing in Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Electric Railway-Motors, (Case No. 600,) of which the following is a specification.

My invention has relation to electric railway-motors and means for supporting the same, and particularly to what are known as single-reduction motors.

One object of my invention is the provision of a form of motor suspension wherein the I 5 car-axle shall be relieved as far as possible from the direct weight of the motor where it is sleeved thereon and wherein spring-supports may be utilized for receiving the shocks incident to the swinging of the motor in either direction.

Another object of my invention is to supply a novel form of separable field-magnet admitting of complete protection and inclosure of the armature and at the same time of ready access to the interior parts of the fieldmagnet itself.

Another object of my invention is the provision of a form of motor wherein the fieldmagnets may be readily inspected and repaired without the removal of the armature from the motor and car, either side of the separable field-magnet being thus capable of inspection and repair.

By the use of my invention I am further able to dispense with all framework, except that necessary for the carrying of the reduction-gears, to cheapen the construction, and to gain certain other advantages more fully set out hereinafter.

My invention is illustrated in the accompanying drawings, wherein- Figure l is a perspective view of my motor as it appears before being put onto the car. Fig. 2 is a perspective view of the same, showing how access may be gained to all parts of the field-magnet without removing the armature; and Fig. 3 shows the mode of suspension of my improved motor, shown in perspective.

As will be readily seen from the drawings, my motor is provided with a field-magnet which entirely incloses the armature and the two parts whereof are hinged together at the back, or at that portion removed from the axle when suspended. The two parts of the field-magnet are shown at 1 and 2 and the hinge is shown at This hinge is shown as depending fromtwo strong lugs on the back of the upper field-magnet; but it is clear that any one skilled in the art may devise various forms of hinge adapted to this purpose.

The forward end of the field magnet is sleeved at 4 upon the axle, the upper or bearing half of the axle box or bearing etbeing cast in one piece with the upper portion of the field-magnet and the lower half being fastened thereto by means of bolts 18, as shown, or by any other suitable means which will no be disturbed by or interfere with the independent movement of the field-magnet section 2 011 its hinges.

The field-magnets are provided with four poles, (marked 5 in the drawings,) which are placed at an angle of about forty-five degree. to the horizon when the motors are in places Each of these poles is appropriately wound, the windings in one half of the field-magnet being connected with those in the other half by means of a connection 6 sulficiently long to permit of the free opening of the motor.

The two halves of the field-magnet are recessed at 7 and 8, as shown,'for the purpose of receiving the bearings of the armature, one of these bearings being shown at 9. Vhen the field-magnet is closed and the motor is in operative condition, the bearings 9 are secured to both halves of said field-magnet, the bolts 10 serving to fasten them to the upper half and the bolts 11 to the lower half by means of proper threaded openings in the bearings, as shown in Fig. 2. It is evident from this form of construction that upon opening the field-magnet, as illustrated in Fig. 2, the bearings 9 may be made to follow either the lower half or the upper half of the mag net or casing. If when the lower half is dropped,as shown, the bolts 10 are unfastened, the hearings will follow the lower half and the poles and coils in the upper half of the field-magnet are open to inspection, as illustrated in Fig. 2. If, however, the lower bolts 11 are loosened when the field magnet is opened, the armature will remain with the upper half of the field-magnet and the lower poles and coils will be exposed. Thus the whole field-magnet may be got at without removing the armature from the car, and thus a great saving of time and trouble in repairs is attained.

In order to make the drawings more clear, I have omitted the gears therefrom; but it will of course be understood that any wellknown means may be employed for transmitting the power of the armature to the axle of the car, my present invention not relating to this matter.

In Fig. 3 is shown the novel form of suspension which I have devised, and wherein the motor is supported from its middle and directly above the center of gravity, so that the weight thereof is not divided, as formerly, between the spring suspension and the axle of the car. Over the top of the motor extend two suspension-bars 12, the ends of which are supported by springs 13 and 14. at the two ends of the motor, respectively, these springs being in turn supported from the frame 15 of the truck. The bars 12 may be bolted or otherwise securely fastened to the upper portion of the field-magnet, the particular means employed being immaterial so long as it is sufficiently strong and free from liability to disarrangement. By this means of suspension the longitudinal swing of the motor is taken up at both ends by springs and the axle is to a great extent relieved from the weight of the motor between its bearings.

The upper half of the field-magnet is provided with two lids 16 and 17 for the purpose of providing convenient access to the various parts of the motor. The lid 16 permits of access to the commutator and brushes and the lid 17 to the journal-box for the purpose of oiling.

There are thus seen to be a numberof essential novelties in this form of motor, the details of which are of course susceptible of many variations without departing from the spirit of my invention, and therefore I do not wish to be understood as limiting myself to these details as shown.

What I claim is- 1. In arailway-motor, the combination with an armature, of a field-magnet constructed in two sections, the upper section bein g supported by the car-truck and the lower section bein g hinged to and supported by the upper section and adapted to swing downward, substantially as and for the purpose set forth.

2. In a railway-motor, the combination with an armature, of a field-magnet constructed in two sections, the upper section being springthe car, the other member being hinged to the first-named member at one end and removably fastened thereto at its other end independently of the axle-bearin g,substantially as described.

4. An electric motor, having a horizontallydivided field-magnet, the upper portion of which is provided with an axle-bearin g at one end and the lower portion of which is hinged to said upper portion, independently of said axle-bearing, whereby it may be swung downwardly without disturbing said bearing. I

5. In an electric car, a motor sleeved at one end upon the axle of the car, suspensionbars secured to said motor above its center of gravity, springs supporting the ends of said bars, and means whereby said springs are attached to the truck,substantiall y as described.

6. In a motor for electric cars, the combination with the armature, of a field-magnet comprising an upper section supported by the car-truck and a lower section hinged to said upper section, and means whereby the armature may be supported by either section when the lower section is swung downward, substantially as described.

7. In a motor for electric cars, a field-magnet surrounding the armature, and horizontally divided, the two sections of said fieldmagnet being provided with corresponding recesses; in combination with armature-bearings fitting said recesses, and means for removably fastening said armatu re-bearin gs to either of the field-magnet sections, substantially as described.

8. In a motor for electric cars a field-magnet surrounding the armature, and horizontally divided, the two halves of said fieldmagnet being provided with corresponding recesses; in combination with armature-bearings fitting said recesses, fastenings removable from the outside, securing said bearings to the upper half of the field-magnet, and fastenings removable from the outside, for securing said hearings to the'lower half of said field-magnet, substantially as described.

In testimony whereof I have hereunto subscribed my name this 8th day of May, A. D. 1894.

ALBERT SCHMID.

Witnesses:

JAMES W. SMITH, HAROLD S. MACKAYE.

Images