US1176984A - Electric switch. - Google Patents

Description

ADDISON C'. PHILPOTT, OF BUCYRUS, OHIO.

ELECTRIC SWITCH.

Specification of Letters Patent.

Patented Mar. 28, 1916.

Application filed January 8, 1914. Serial No. 811,113.

To all whom it may concern: v

Be it known that I, ADDISON C. Pnr'nror'r, a citizen of the United States, residlng at -Bucyrus, Crawford county, and State of ple and effective character for enabling a member to be alternately moved in opposite directions by successive energlzations of a magnet whereby, if desired, current may be directed alternately through different circuits, and specifically to provide mechanical means for so positioning the switch moving means that the said opposite switch successive movements of the switch member will be effected by the movement of the magnet armature in one direction.

WVith these ends and others in view, my invention is embodiedin preferable form in the device hereinafter described and illustrated in the accompanying drawings.

In thesedrawings, Figure 1 is a front view in elevation of a switch and the magnet showing the switch blade in contact with a fixed contact member and showing the armature drawn down by the energization of the magnet; Fig. 2, a front View in elevation showing the switch blade in contact with the same fixed member as in Fig. 1, but showing the magnet deenergized and with the blade moving member in position to shift the switch blade in the opposite direction upon the reenergization of the magnet; Fig. 3, a view similar to Fig. 1, showing the switch blade incontact with the right hand contact member and with the magnet energized; Fig. 4, a front view in elevation showing the switch blade inthe positionindi cated in Fig. 8, but withthe magnet deenergized and Fig. 5, a vertical sectionat right angles to Fig.1.

Referring to the drawings, 1 is a magnet of the solenoid type having 31.0018 or arma- .ture 2, to the upper end of which is pivoted an arm '3, which carries at its upper enda cross arm 4. The arms 3 and 4 constitute a switch blade operating member and this member is capable of a lateral swinging movement on the pivot connecting the same with the core of the solenoid.

Mounted on a pivot pin 5, extending into is adapted to establish a circuit through either fixed contact member 7 or fixed contact member 8, the said switch blade being laterally shiftable from one contact memher to another to establish different circuits or to make and break one circuit. The pivot pin 5 and the contact members 7 and 8 are adapted to be connected by wires 9, 10 and ll-to a suitable source of electrical energy. The pin 5 is spaced from the arm 3 and the pin and the contact members 7 and 8 are mounted upon a suitable support from which they are separated by suitable insulating material. The switch blade is provided at its lower end with a tilting cross arm 12, which carries at each end thereof an outwardly projecting pin or stud 13. Such pins are made of non-conducting material. These pins are adapted to be engaged by notches 1414 formed in the lower edge of the arm 4 of the switch blade actuating member and also by notches 15--15 provided in said armand extending more deeply into the surface thereof then the notches 14.

The notches 14 constitute means of connec- 'tlon between the shifting member and the blade for moving said blade while the.

notches 15 constitute guiding and guarding recesses and serve to permit the descent of the blade shifting member when carried downwardly bythe magnet core and to also prevent said member from being shifted laterally beyond the said pins.

Connected to an arm 16 extending laterally from the vertical arm 3 of the switch blade operating member is a spiral spring 17, the other end of which is connected to a fixed support.- This spring serves as the means for carrying the .switch blade operat- 1ng member into position to shift the switch blade in a direction opposite to that in which it has been carried by the energization of the v solenoid. This member. performs its positioning function when the solenoid is deenergized.

. The operation of the device is as follows In Fig. l the solenoid has been energized, the core pulled down and the switch actuating member also pulled down and it will be seen that as a result of this action, the left hand notch 14 of the switch blade operating member has engaged one of the pins 13 on the cross arm of the switch blade and has carried said pin downwardly rocking the switch blade on its pivot, so as to carry the latter into contact with the left hand ,contact member. The other pin on the opposite end of the cross arm of the switch 1 blade has been carried into engagement with. the deep. notch 15 at the corresponding end of the operating member. The parts will remain in this position with a circuit established through the switch blade and the left hand contact member until the solenoid is dener'gized. When this action takes place,

the spring'17 will carry the switch blade operating member, consisting of the arms 3 and 4 upwardly and such member in such upward movement will assume the true vertical position and in moving to such position the right hand notch 14 on the upper arm 4 will be carried over into alinement with and above the right hand pin 13 of the tilted arm of the switch blade, said switch blade and its arm remaining in the position shown in-Fig. 1. The position resulting from the action thus described is indicated in Fig. 2 from which it will appear that the right hand notch 14: of the switch blade-operating member is in engagement with the right hand pin of the switch blade, ready to depress the right hand end of the switch blade cross bar when the operating member and the solenoid core are again pulled downwardly J by the energization of the solenoid. Upon such reenergization of the solenoid, the operating member will accordingly tilt the right hand of the cross bar of the switch, blade downwardly, thus shifting the switch blade from the left hand contact member over into engagement with the other member to establish a new circuit or break the first circuit, and'the parts will assume the position shown in Fig. 3 until the current throughthe solenoid is broken, whereupon they will take the position shown in Fig. 4, owlng to the retractive action of the spring, and will then be in position to effect the reshifting to the arrangement in' Fig. 1. It will be seen bythis arrangement that the switch blade may be shifted in opposite directions by suc cessive movements of the solenoid core in the 7 same direction. and that this action is effected by mechanical means supplemental to the electrical operating means provided by the solenoid. :1

Having thus-described my invention, what Iclaim is: l

In an electric switch, in combination with a fixed contact member, a swinging pivoted blade, a solenoid, an armature, a swinging member movable in a plane parallel to the plane of movement of said switch blade and,

pivoted to said armature below the pivot of said switch blade, said tilting member hav ing a cross arm extending to each side of the pivot of said member and having two pin" engaging slots at each end of said cross arm, one of said slots being deeper than the other, said switch blade having a cross arm ADDISON C. PHILPQTT. [1 s.] v

Witnesses:

A. C. RICE, H. P. DOOLI'ITLE.

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