US1575179A - Electric switch - Google Patents

Description

Makch z, 1926. 1,575,179

R. H. CLLEY ELECTRIC SWITCH Filed Dec. 4. 1923 INVENTOR- BY j 'T%MLMWATTORNEYS,

rm Mir. 2,1926.

UNITED STATES PATENT OFFICE.

BLYIQND 11. out, or SYRACUSE, new YORK, assrenon r excess-ms c0)!- rm, or smousn, NEW YORK, A CORPORATION or NEW YORK.

anaemic swrrcn.

, Application filed December 4, 1923. Serial m; 678,549.

a citizen of the United States, and a resident of Syracuse, in the county of Onondaga and 1 State of New York, have invented a certain new and useful Electric. Switch, "of which the following is a s ecification.

This invention re ates to electric switches,

j and has for its object .a particularly simple claimed.

and eificient switch or. mechanism thereof, by which the switch arm or arms are not only brought into and out ofengagement with the switch contacts by a quick break action, but are also brought into and out of engagement with the contacts and espe cially into engagement therein by a wiping movement, whereby the contacting surlaces are cleaned.

This invention consists in the novel features and in the combinations and in the constructions hereinafterv set forth and In describing this invention reference is had to the accompanying drawings, in which like characters designate corresponding parts in all the views.

Fi re 1 is a vertical sectional view of a switc embodying my invention, the casing or housing being also shown.

Figure 2 is an elevation of the switch and housing, the other parts being omitted.

Figure 3 is a vertical sectional view partly in elevation of parts shown in Figure 2. Fi re 4 is in inverted plan view of parts seen 111 Fig. 1.

This swltch comprises generally. a base having a switch contact or contacts thereon,

an o crating member movable relatively to the uise, comprising an arm or arms mounted to move into and out of on agement with the contact or contacts, an also movably laterally to have a wiping effect on thecontacts as the switch arms move into I so ' rection or are spring metal so that the .-and out of engagement with the contacts especially out of engagement, an operating member movable relatively to the switc vmember, and connections operated by the operating member for moving the switch member and said-arms. The switch arms are preferably spring pressed in one dispring is inherent therein, presses them latorally in one direction, and such springalso moves the switch member toward and from the contacts with'a snap action, after the.

being the end faces of conductors or 'ing comprising a recess 11 opening through spring arms have been tensioned 'by the switch member is movable lengthwise of the operating member and reversely relatively thereto. The switch arm-"or "arms extend lengthwise of the operating member toward the base.

1 designates the base which is formed of suitable insulating material, 2 are the contacts mounted on the base, these contlacts u 3, extending through the base and chi here shown as having binding screws 4 at their outer or lower ends.

5 is the operating member here shown as a rod slidable through in a passage 6,,in the base between the contacts 2, and having a stem 7 provided with. a knob or handle 8 at its upper end. The stem extends through a neck 9 of a suitable housing 10, the housone end ofthe housing. The base is fitted within the openend of the 'housin and as the base 1 is cylindrical in form, tie recess 11 is. cylindrical at least at its open end.

A suitable linin 12 of insulation is fitted. within the housing around switch mechanlsm. i

This housing is here shown as formed.

with a base flange 13, by means of which it is mounted upon a support as for instance an outlet box, it being'secured to the outlet box or the support by screws extending through openings i l-in the base flange. The base is secured in position by laterally ex tending the base flange 14c and secured-thereto by screws extending through'holes in the these flange and threading into the holes 16 in the The stem 7 of the operating member 5 also Wt The switch member here illustrated is mounted. to slide lengthwise ct the operat ing member 5 reversely relatively thereto, so that when the operating member moves down then such member moves in thereverse direction or upwardly, The switch mem 60 the base, and is slidably mounted, efn'dthe lugs 15, lapping the lower face of ber comprises spring arms 18 extending in a general direction lengthwise of the operating member toward the base 1.

The switch member here shown comprises one or more plates 20, 21 having openings therein for the operating member 5, the part of the operatingmember along which the switch member slides being non-circular or square, the holes in the plates are also non-circular or square. The plate 20 is of metal and the other plate 21 is usually of insulating material. Each switch arm 18 is in the general form of a bow spring and the tension of the spring arms tends to move the.w free ends thereof ifiwafdly toward the operating member 5. Each arm spring is formed with a contact or foot 23 at the lower end for engagement with the contact 2. The switch arms 18 are usually formed from a single piece of metal, the intermedi ate part of which is clamped between the plates 20' and 21, and provided with a hole through which the operating member extends. i 7

The connections operated by the operating member 5 comprise links 24 pivoted at like ends at 25 to the operating member 5, and at the other or outer ends to the switch arms 18, the outer ends being usually in the form of pins extending radially through rollers'26 which fit insockets 27 formed in the arms 18, the pins extending through slots in the sockets.

The operating member is usually formed with a lengthwise slot 28 and the'inner ends of these links extend into the slot.

During downward movement of the member 5 the joint 25 of the links are moved downwardly from the position shown in Fig. 1, to that shown in Fig. 2, and first press the arms 18 outwardly and when the ends of the arms pass the dead center line of the links,

a that is a straight line passingthrough the pivots 25, 26, the switch will snap upwardly with a quick action owing to the resiliency of the members 18. During upward movement of the member 5 the switch arms are spread apart until the links passthrough'the dead center line when the arms are moved downwardly and inwardly with a ma action to engage the contacts .2, the 'feet W1 ing on such contacts, and so doing ma e a I perfect contact.

What I claim is: L In a switch, the co" having. a contact thereon, a switch arm mounted to. shift toward and from th'base into and out of engagement the contact, the switch arm havlng a portlon with the contact, and an operating member movable in a direction substantially parallel lel to the operating member and having ination of a base limits of means arm has a wiping movement on the contact,

the operating member being movable in a general direction parallel with the switch arm, and connections between the operatin member and the switch arms to eflect suc movements. Y

3. In a switch, the combination of a base, a contact thereon, a switch arm and an operating member, the switch arm being mounted to move rectilinearly toward and from the base into and out of engagement with the contact, and the switch arm extending paralan engaging end movable laterally relatively to its rectilinear movement, whereby the switch arm has a wiping movement on the contact, the operating member being movable in a general direction parallel with the switch arm, and connections between the operating 8 member and the switch arm to effect such movements, such connections comprising a link pivotedat one end to the operating member and extending laterally therefrom, and pivotally connected at its other end to the switch arm.

' 4. In a switch, the combination of a base, a contact thereon, a switch member movable rectilinearly toward and from the base, and comprising a switch arm having a lateral movement. relative to the rectilinear movement, whereby the switch arm has a wiping engagement with the contact, an operating member movable in a direction parallel to the switch member, the switch member being slidably mounted on the operating member, and connections between the operating member and the switch arm to efi'ect such movements of the switch member and the switch arm;

' 5. In a switch, the combination of a base,

comprising an arm havin a lateral movement relative to the reels ear movement,

slidably mounted on the operating member,

and connections between the operating I ll'o ber and the switch arm toefiect such movethe switch and arm,

' a contact thereon, a switch member movable rectilinearly toward and from the base and a contact thereon, a switch member movable rectilinearly toward and from the base, and comprising a switch arm having a lateral "movement relative to the rectilinear movement, whereby the switch arm has a wiping engagement withthe contactsg an operating member movable in a direction parallel to the switch member, the switch member being slidably mounted on the operating member, and connections between the operating member and the switch arm to effect such move ments of the switch member, such connec-- tions being arranged to move the switch arm reversely relatively to the operating member,

, and comprising a link pivoted at one end to the operating member and at its'other end to the switch arm.

7. .In a' switch,the combination of a base having a contact therein, a switch arm mounted to move toward and from the base into and out of engagement with the contact,

the switch arm being spring-pressed and tensioned to have a lateral movement relatively slidably mounted on to its movement toward and from the base, whereby'the switch arm has a wiping engagement with the contact, and operating member, and connection between the operating member and the switch arm to effect such movement and tension the spring pressed portion.

8. In a switch, the combination of a base, a contact thereon, a switch member movable rectilinearly toward and from the base and comprising a switch arm provided with a spring pressed portion having a lateral move- .ment relative to the rectilinear movement, whereby the switch arm. has a wiping engagement with the contacts, an operating member movable in a direction parallel to the switch member, the switch member being the operating member, and connections between the operating member and the switch arm to efiect such movements of the switch member, and said am, such connections comprising a link pivoted at one end to the operating member and at its other end to the switch arm.

9. In a switch, the combination of a reciprocally movable operating member movable at an angle to the base, a switch member slidable lengthwise of the operating member, and comprising a switch arm ca able of movement laterally relatively to tiie a base,

operating member and connections 0 erated by the operating member for moving the switch member into and out of engagement with the contact and also to move the switch arm laterally whereby the switch arm has a wiping "engagement 'with the contact.

10. In a switch, the combination of a base, a reciprocally movable operating member movable at an angle to the base, a switch member movable lengthwise of the operatin member and reversely relatively thereto, an comprising a laterally movable switch arm supported and connections operated by the operating member for moving the switch member toward and from the contact and also moving the switch arm laterally, whereby the switch arm moves into and out of engagement with the contact with a wiping movement.

11. In a switch, the combination of a base, an operating member reciprocally slidable relatively to the base at an angle thereto, a

switch member slidable lengthwise of the operating member and com rising resilient switch arms extending lengthwise thereof toward the base and being movable laterally relatively to the operating member and links pivoted at like-ends to the'operating member and at their other ends to said arms.

In testimony whereof, I have hereunto, si ed m name, at S cuse,-in the county 0' Onon a and in t e State of New York,

' this15th day of November, 1923.

I RAYMOND H. OLLEY.

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