Milwaukee Stamping Co. 11200 Schematic

Milwaukee Stamping Co. 11200

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Product Information:
Model:11200
Manufacturer:Milwaukee Stamping Co.

Schematics Content

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TO OPERATE MANUALLY
Raise the record balance arm (42) and the 10 " record support (38). Place a record on the turntable and turn the control button to the manual position.
Place the pickup arm at the start of the record and return it to the pickup arm rest at the end of the record.

TO OPERATE AUTOMATICALLY
Place the pickup arm on the pickup arm rest and raise the record balance arm (42).
(The 10 " record support (38) must be lowered for 10 " records and raised for 12 " records.)
Place 12-10 " or 10-12 " records on the spindle and record support. Lower the record balance arm (42) and turn the control button to reject and release it, it will automatically return to the automatic position, To reject an unfinished record turn the control button to reject and release it.
To remove records from the turntable, turn the control button to the OFF position and raise the record balance arm (42) and the 10 " record support (38) and lift the records off.

CYCLE OF OPERATION
The following drawings show a complete cycle of operation. Figures 1, 1A, is and 1C show the mechanism in the OFF or nonoperating position. The rest of the Figures show the mechanism in various phases of the change cycle.
To start the change cycle turn the control button (126) to the Reject position as shown in Fig. 2. This causes the notched washer (127) to take the position shown in Fig. 2B. And as soon as the control button (126) Fig. 2 is released, the selector lever spring forces the notched washer (127) Fig. 3B, also (126) Fig. 3, into the automatic position. This action of the notched washer causes point A of the selector lever (132) Fig. 2B to move against the ON - OFF switch (125 Fig. 2 B applying voltage to the motor.
Point B of the selector lever (132) Fig. 2B moves away from the lead roller shoulder nut (95) Fig. 2B. Point C of the selector lever (132) pushes against the lead roller dropping lever (78) Fig. 2B causing it to move away from the lead roller shoulder nut (95) Fig. 2B. Thereby, allowing the lead roller (94) Fig. 2A to enter the spiral cam underneath the turntable Fig. 2A.
Fig. 20 shows the lead roller (94) engaged with the spiral cam. This starts the change cycle by the action of the spiral cam forcing the lead roller (94) Fig. 30 and the swing arm (71) Fig. 3B toward the center of the turn table. As the swing arm moves toward the center of the turntable, the cam med end of it (Point D), Fig. 3 B forces the adjusting plunger pin (21) Fig.
30 upward raising the pickup arm (14) Fig. 30 from the pickup arm rest (2) Fig. 30. As the swing arm (71) Fig. 3B moves farther toward the center of the turn table, the ratchet arm friction springs (82 and 83) Fig. 3B engage the ratchet arm (7) Fig. 3B and swings the pickup arm (14) Fig. 3 away from the turntable (136) Fig. 3 until the ratchet arm (7) Fig. 3B is stopped by coming in contact with the ratchet arm stop bracket (142) Fig. 3B.

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As the swing arm (71) Fig. 3B starts toward the center of the turntable, Point E, on the swing arm (71) Fig. 3B moves away from the ratchet arm lever (64) Fig. 3B allowing it to pivot up due to the tension of the ratchet arm lever spring (69) Fig. 3B so that it will be in a position for Point F of the ratchet arm lever to contact the ratchet arm (7) Fig. 3 B at the pro per point for the pickup arm (14) Fig. 3C to set down on the record. If it were not engaged at the proper point, the tension of the ratchet arm friction springs (82 and 83) Fig. 3B would carry the pickup arm past the start of the record.

Another operation that is taking place as the swing arm (71) Fig. 3B moves toward the center of the turntable is that the roller (73) Fig. 3 B of the cammed dropping lever (74) Fig. 3B, makes contact with the lever trip bracket (109) Fig. 3B and gradually forces the cammed dropping lever away from the bearing pin shoulder nut (103) Fig. 30 so that as soon as a record is dropped, the lower or return roller (102) Fig. 3C also (102) Fig. 3A is allowed to enter the spiral cam Fig. 3A so that the swing arm (71) Fig. 3B can return to its original position. This will be covered later, as this phase of the change cycle occurs.

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Point G of the swing arm (71) Fig. 3B pushes against the roller (117) Fig. 3B of the ejector idler lever (118) Fig. 3B and the adjusting screw (119) Fig. 3B on the ejector idler lever (118) Fig. 3B pushes against the lower push pin (114) Fig. 3B, which in turn pushes against the ejector levr (31) Fig. 3B (a side view of the ejector lever (31) is shown in Fig. 6). The ejector lever (31) Fig. 6A then pushes against the 12 " record slide bolt (33) Fig. 6A which pushes the 105 record slide bolt (40) Fig. 6A; causing the 10 " record to drop on the turntable.

To play a 12 " record, raise the 10 " record support (38) Fig. 8, which causes point j on the 10 " record support (38) Fig. 8 to engage the change lever ejector (28) Fig. 8A, which pivots and moves the change lever (67) Fig. 1B, toward the rear of the changer base plate, This allows the ratchet arm lever (64) Fig. 1B to pivot more causing the ratchet arm (7) Fig. 1B to hit against point K on the ratchet arm lever (64) Fig. 1B causing the 12 " record to land on the turntable, as was the case with Point F for the 10 " record.

As mentioned in a previous paragraph, the roller (73) Fig. 3B of the cammed dropping lever (74) Fig. 3B has made contact with the lever trip bracket (109) Fig. 3B and has forced the cammed dropping lever (74) Fig. 3B away from the bearing pin shoulder nut (103) Fig. 30 allowing the lower or return roller (102) Fig. 3A (also 102) Fig. 3C) to enter the spiral cam Fig. 3A and so to return the swing arm (71) Fig. 3B to its original position.

The lead roller (94) Fig. 3A (also 94 Fig. 3C) is then forced out of the spiral cam by a raised portion of the spiral cani Point H Fig. 3A. Through the action of the tension spring (79) Fig. 3B the lead roller dropping lever (78) Fig. 3B is moved into position over the lead roller shoulder nut | (95) Fig. 3B thereby keeping the lead roller (94) Fig. 30 also Fig. 3A out of the spiral cam.

As the swing arm (71) starts back to its original position, the ejector mechanism returns to its original position. The pickup arm is being moved into position to land on the record through the action of the ratchet arm friction springs (82 and 83) Fig. 4B, on the ratchet arm (7) Fig. 4B.

As explained in a previous paragraph, the ratchet arm lever (64) Fig. 4B has been moved up so as to stop the ratchet arm (7) Fig. 4B at the proper position for the pickup arm to land on the record. As the swing arm (71) Fig. 4B nears the end of its'return swing Point I of the swing arm engages

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the friction brake spring spring (61) Fig. 4B. This insures smooth lowering of the pickup arm and also tends to hold the swing arm (71) Fig. 4B in the same position while a record is being played. As soon as the adjusting plunger pin (21) Fig. 40 starts down the cam med end Point D Fig. 4B of the swing arm (71) Fig. 4B the ratchet arm friction springs (82 and 83) Fig. 4B disengage from the ratchet arm (7) Fig. 4B. Point F of the ratchet arm lever (64) Fig. 4B is forced away from the ratchet arm (7) Fig. 4B by Point E on the swing arm (71) Fig. 4B.

The pickup arm (141) Fig. 4 also Fig. 40 is lowered on the record and then Point H of the spiral cam Fig. 1A forces the lower or re turn roller (102) Fig. 4A also Fig. 40 out of the spiral c am. Through the action of the tension spring (76) Fig. 4B the cammed dropping lever (74) Fig. 4B also Fig. 40 is moved into position over the bearing pin shoulder nut (103) Fig. 40 thereby keeping the lower or return roller (102) Fig. 40 out of the spiral c am. Thus the pickup arm can continue across the record.

Fig. 5 shows the pickup arm (14) at the end of the record, and Fig. 5A shows how the ratchet arm (7) has also moved to the end of the record and the adjusting screw (11) of the ratchet arm (7) is just at the point of pushing the lead roller dropping lever (78) away from the lead roller shoulder nut (95) so that the lead roller 194) Fig. 5B may enter the spiral cam for another cycle of operation.

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FIG. 1
TOP VIEW (NORMAL POSITION)

FIG. 1A
BOTTOM VIEW OF TURNTABLE SHOWING SPIRAL CAM IN NORMAL POSITION

FIG. 1B BOT TO VIEW (NORMAL POSITION)

FIG. 1C RIGHT END VIEW

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FIG.2 TOP VIEW (REJECT POSITION)

FIG. 2A BOTTOM VIEW OF TURNTABLE SHOWING SPIRAL CAM IN REJECT POSITION

FIG. 2B BOTTOM VIEW (REJECT POSITION)

FIG. 2C RIGHT END VIEW

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FIG.3 TOP VIEW AUTOMATIC POSITION (RECORO EJECTED)

FIG. 3A BOTTOM VIEW OF TURNTABLE SHOWING SPIRAL CAM IN RECORD EJECTING POSITION

FKG. 3B BOTTOM VIEW (AUTOMATKC POSITION)

FIG. 3C RIGHT ENO VIEW

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FIG.4 TOP VIEW AUTOMATIC POSITION (START OF RECORD)

FIG. 4A BOTTOM VIEW OF TURNTABLE SHOWING SPIRAL CAM IN CYCLE OF RECORD PLAYING POSITION

FIG. 4B BOTTOM VIEW (START OF RECORD POSITION)

FIG. 4C RIGHT END VIEW

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FIG. 5 TOP VIEW AUTOMATIC POSITION (END OF RECORD)

FIG. 5A BOTTOM VIEW (END OF RECORD POSITION)

FIG. 5B RIGHT END VIEW

FIG. 6A 10" RECORD EJECTOR (EJECTING POSITION)

FIG. 6 10" RECORD EJECTOR (NORMAL POSITION)

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FIG. 7 12 " RECORD EJECTOR (NORMAL POSITION)

FIG. 8 CHANGE LEVER EJECTOR (28)
IN 10 " POSITION

FIG.9 SECTIONAL VIEW OF PICKUP ARM AND ADJUSTING PLUNGER PIN

FIG. 7A 12 " RECORD EJECTOR (EJECTING POSITION)

FIG. 8A CHANGE LEVER
(28) EJECTOR IN 12 " POSITION

FIG. 10 SECTIONAL VIEW OF LEAD ROLLER ASSEMBLY 9:

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TROUBLE SHOOTING SHART

(Contid)