US1436328A - Controller check - Google Patents

Description

F E WARD coNTnoLLER cHEc'K. APPLICATION FILED JUNE I 1922.

Patented Nov. 21, 1922.

I Inventor, 'Frederick Ellis Ward,

lorney.Y

Patented Nov. 21 1922.

UNITED STATES PATENT OFFICE.

FREDERICK ELLIS WARD, OF EAST ORANGE, NEWJERSEY, ASSIGNOR TO CROCKER- THEELER COMPANY, OF AMPERE, NEX? JERSEY, A CORPORATION OF NEW JERSEY.

CONTROLLER CHECK.

Application filed .Tune 1,

To all whom t may concern Be it known that l, FREDERICK ELLIS WARD, a citizen of the United States of America, and a resident of East Orange, county of Essex, and State of New Jersey, with a post-cnice address BOX 57, Ampere, New Jersey, have invented certain new and useful Improvements in Controller Checks, ot which the following is a specilication.

This invention relates to a check for a hand operated electric motor controller or starting switch. wherein there are one or more intermediate positions between-the oill position and the full running position where the circuits to the' motor are protected by the introduction of inductance or resistance, and at which it is necessary to pause in starting the motor until sufficient speed has been reached to warrant the removal of such inductance or resistance. Such` a switch is shown in United States patent application Serial No. 475,785, filed June 7, 1921.

The object of this invention is to provide a check for the switch at such intermediate position, and to provide means operated through the controller or switch handle which requires its movement in a different direction when thc check is reached in order to release the switch for further movement. Inadvertent passing of this position without pausing is thereby prevented. The construction is also such that on returning from the running position. to the olf position the movement is notl interrupted by the check.

.lin the accompanying sheet o1' drawings which forms a part ol" this specitication;

Figure 1 is a front view of a portion or' a motor starting switch, the cover oi' the casing being omitted, which shows a crank handle and check associated in accordance with this invention,

Fig. 2 is a side view of the same,

Fig. 3 is a vertical section on the line III- III of Fig. 1, the switch being in full running posit-ion,

Fig. 4: is a vertical section on the line IV-IV of Fig. 1, the switch being in the checked position, and

Fi 5 is a section on the oblique line V-- of Fig. 4 in projected position from Fig. 4.

A switch member 10, rotatable about an axis AWA. carries cylindrical contact segments 11 which contact in operated positions of the switch member with wingers 12, 12.

1922. Serial No. 565,094.

.ing is a bearing 14 in line with the axis of Vthe switch. A shaft lpasses through the bearing anda connecting` member 16 is attached to the inner end of the shaft and couples it to the switch member. This connecting member carries an armature 17 which is brought against an electromagnet 18 and held thereby when the switch isvin its fully operated and closed position. A spring 19 returns the switch to open position when the current is cut oli from the magnet.

Outside of the casing the shaft has nn arm 20, and pivoted to this arm by a pin 21 is a handle member which consists of a channel-shaped part Q2 and a handle Q3 riveted to one end of the channel-shaped part. The channel-shaped part has a bentover lug 22a proj ecting under the arm which is notched to permit a limited outward movement of the channel-shaped part in the plane of the controller axis and preferably in the direction of its axis. A spring 24 presses the handle member outward from the arm. The sides of the channel-shaped part engage the sides of the arm so that' force applied through the handle to operate the switch is communicated through the arm and not through the pivot pin. A check 25 is pivoted to a block 26 which is riveted to the inner side of the casing and the check normally projects through a hole in the casing into the path of the arm so as to check the switch at the starting position when it is being moved toward full running position. A spring 27 holds the check in its normal position. The top of the check is beveled at 25a and the under side of the arm is beveled at 20a as shown in Fig. 5, so that on return movement the arm will depress and ass over the check and not be stopped tliereby. The channel-shaped part has a prong 28 so positioned as to be over the check when the arm is in contact with the face of the check so that if the handle member is then depressed the check will be pushed out of the path of the arm can succeedl one another only with a pause.'

Initial operation of the switch from the oli' to the starting position is preferably effected Without depressing the handle, for

if the handlevis depressed during this part of the movement the prong instead Will come in. contact with the face of the check and then the handle 'will have to be lifted to bring the prong on top of the check and again depressed before `further progress can be made toward full running position.

I claim, Y

l. Ina controller, al1-arm for operating the controller, a handle member for operating the arm having a movement With the arm and also inthe plane` of the controller axis, and a movable check normally in the .path of the arm and constructed to `beven- 1 ,assenze gaged by the handle member when the arm is in cont-act with the check and to push the check out of the patch of the arm.

2. In a controller, an arm for operating the controller, a handle member pivoted to the arm for operating the arm having a `movement With the arm and also in the sides'of which engage the arm `for operating the arm having a movement with the arm and also inthe plane of the controller axis and a movable check normally in the path *of the arm constructed to be engaged bythe handle member When the arm is in contact With the check and to pnsh the cheek out of the path of the arm.

FREDERICK'ELLIS WARD

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