US3093894A - Pole shoe assembling and securing - Google Patents

Description

3,093,894 POLE SI-IGE AfifiEMBLiNG AND SECURING MAHENE Edwin A. Jurecka, 2110 Chenevert, Houston, Tex. Filed May 19, 1961, Ser. No. 111,389 4 Claims. (Ci. 29--2ti) This invention relates to new and useful improvements in a pole shoe assembling and securing machine.

It is an object of this invention to provide a device for mounting pole shoes in a housing, such as are used in electric starters and generators, to mount the field coils in place.

In electric starters and generators, and the like, the pole shoe compresses the field coil and fits snugly against the housing, and due to the small tolerance in mounting the rotor in position, an expander must be employed to apply sufiicient pressure to compress the coil and place the pole shoe in position to be anchored to the housing by suitable screws. Great difficulty has been experienced in applying sufiicient pressure to the pole shoe to compress the coil to move the pole shoe to a position adjacent the inside wall of the housing to receive the anchoring screw, and to obtain the close fit required. It is an object of this invention to provide means for readily accomplishing this fitting.

It is another object of the invention to provide a pole shoe expander having means for accomplishing the desired alignment of the pole shoe with the housing when moved into position for anchoring to the housing.

With the above and other objects in view, the invention has relation to certain novel features of construction, operation and arrangement of parts more particularly defined in the following specification and illustrated in the accompanying drawings, wherein:

FIGURE 1 is a side elevational view of the device, with the housing and coils shown in cross section, and

FIGURE 2 is a cross sectional end View, taken on the line 2-2 of FIGURE 1.

Referring now more particularly to the drawings, the numeral 1 designates a vertical support on which the rigid lateral arms 2, 3 are mounted. The arm 3 is of substantially rectangular stock and has the spring loaded finder ball 4 mounted in the socket 5. Lateral ears 6, 6 extend from the member 3 and the lever 7 is pivotally mounted thereon. An actuating arm 8 is pivotally mounted on one end of the lever 7 and is connected to the drive shaft of a suitable power tool, such as the air jack 9.

Extending through the member 2 is the longitudinally movable screw driving means 10 which is in alignment with the finder 4 and which has the extended handles 18, 18 providing means for applying pressure to the rotation of the screw in anchoring the pole shoes. Any suitable means may be employed to apply pressure to the screw driver in setting the screw, such as the manual means shown or by an air impact tool (not shown) or other force tools.

When it is desired to mount a coil and pole shoe in the housing 11, a screw as 12 is mounted in the port 13 and a coil as 14 and pole shoe 15 are positioned in the housing 11 and the housing positioned on the member 3 by extending one end over the extended ends of the rigid member 3 and lever 7. The internally threaded screw port 16 is aligned with the port 13 by means of the finder 4 seating in the port 16 and pressure is then applied either manually or by means of the jack 9 against one end of the lever 7, the other end of the lever 7' bearing against the opposite side of the housing 11, or the opposite pole shoe 17, if the opposing pole shoe is in the housing. The outer edges Patented June 18, 1963 of one face of the rectangular member 3 bear against the arcuate face of the pole shoe 15 and align the shoe with the curvature of the housing and as pressure is applied through the lever 7, the pole shoe 15 is forced against and compresses the coil 14 and the screw driver it may be moved against and rotated to set the screw 12 in the port 16 and by exerting the desired pressure on the screw driver it the anchoring of the pole shoe completed, the ball 5 yielding as the end of the screw contacts same.

While the foregoing is considered a preferred form of the invention, it is by way of illustration only, the broad principle of the invention being defined by the appended claims.

What I claim is:

1. In a pole shoe assembling and securing machine, a vertical support, a laterally extended member mounted on said support having screw driving means mounted therein, another laterally extended member on said support having a pole shoe screw port finder mounted therein, said pole shoe screw port finder being in alignment with said screw driving means, a lever pivotally mounted on and substantially parallel with one of said extended members, a housing in which pole shoes are to be mounted, means 'for applying pressure to one end of said lever to cause the other end thereof to move against one side of said housing and to apply pressure to the member on which said lever is mounted toward the other side of said housing.

2. In a pole shoe assembling and securing machine, a support having a pair of extended rigidly mounted members, a screw driving means mounted in one of said members, the other of said members being rectangular and having a lever pivotally mounted thereon and parallel therewith, the upper ends of said lever and said last mentioned member adapted to receive a housing in which pole shoes are to be mounted, said housing having screws to be seated in said pole shoes, means for applying hydraulic pressure to one end of said lever to move the other end of said lever against one side of said housing and to apply pressure to the last mentioned rigid member to force said pole shoes towards the inside wall of said housing and permit one of said screws to be mounted in said pole shoe by said screw driving means.

3. In a pole shoe assembling and securing machine for mounting field coils and pole shoes in a housing, a rigid screw driver holding means, a rigid pole shoe expanding member in alignment and parallel with said screw driver holding means, a lever pivotally mounted on said pole shoe expanding member, means for applying pressure through said lever to said pole shoe expanding member to align a pole shoe with the curvature of a pole shoe housing and to move said shoe into position to receive a. screw and to be anchored to said housing by said screw driver.

4. In a pole shoe assembling and securing machine, a fixed expanding member and a pivotally mounted member, means on the fixed member for aligning a screw port in a pole shoe with a screw port in a housing, a screw driver in axial alignment with said aligning means, means for applying pressure to one end of said pivotally mounted member to move a pole shoe into positon to permit a screw to be mounted by said screw driver through said housing and into said shoe.

References Cited in the file of this patent UNITED STATES PATENTS 1,442,962 Miles Jan. 23, 1923 2,424,752 Heermans July 29, 1947 2,443,824 Johnson June 22, 1948 June 18, 1963 T. B. EDDY 3,093,895

WIRE COIL INSTALLING TOOL Filed Oct. 16, 1961 2 Sheets-Sheet l i H |L gum INVENTOR. THEODORE B. EDDY ATTORNEY Mam /6

Claims (1)

1. IN A POLE SHOE ASSEMBLING AND SECURING MACHINE, A VERTICAL SUPPORT, A LATERALLY EXTENDED MEMBER MOUNTED ON SAID SUPPORT HAVING SCREW DRIVING MEANS MOUNTED THEREIN, ANOTHER LATERALLY EXTENDED MEMBER ON SAID SUPPORT HAVING A POLE SHOE SCREW PORT FINDER MOUNTED THEREIN, SAID POLE SHOE SCREW PORT FINDER BEING IN ALIGNMENT WITH SAID SCREW DRIVING MEANS, A LEVER PIVOTALLY MOUNTED ON AND SUBSTANTIALLY PARALLEL WITH ONE OF SAID EXTENDED MEMBERS, A HOUSING IN WHICH POLE SHOES ARE TO BE MOUNTED, MEANS

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