US1043718A - Electric switch. - Google Patents

Description

J. G. PETERSON.

v ELECTRIC SWITCH.

ABPLIQATION FILED APR.22,1912.

lnesses: fnvenor:

fm# el ffe'ens'an switch. i theline 3--3 of Fig. 2 looking in thedirec` JOHANN G. PETERSON, 0F HARTFORD, CONNECTICUT.

ELECTRIC SWITCH. f

Specication et Letters Patent.

Patented N ov. 5, 1912.

Application filed april 22, 191,2. serian no. 692,482.

To all whom 'Lt way A Be it known that I, JOHANN G. PETER- soN, a citizen-of the United States, residin at Hartford, in the county of Hartford an State of Connecticut, have invented certain new and useful Improvements in Electric Switches, of which the ,following is a specitication. l This invention relates to electric switches, the object of the invention being to provide a simple and effective article of this character which can be inexpensively made, and the parts of which can be readily and easily assembled and which also has means for insuring accurate action of the movin parts.

The switch possesses many other eatures of advantage and novelty which with the foregoing will be set forth at length in the following description wherein I will outline in detail that form of embodiment of the invention which I have selected for illustration, in the drawings accompanying and forming part of the present specification, this showing being primarily provided to enable those skilled inthe art to practice the invention, from which it will be evident that I do not limit myselffto said disclosure; I may depart therefrom in several respects within the scope of the invention included in the claims following said description.

Referring to said drawings: Figure 1 is a top plan view of a switch involving my invention with a portion thereof broken away to better show certain of the arts. Fig. 2 is a vertical sectional view o said Fig. 3 is a transverse section on tion of the arrow. Fig. 4 is a perspective view of an insulatin member, and, F 5 is a detail view of a icy.

Like` characters refery to like parts throughout the several ti res. t

The supporting body i the switch may be of any desirable construction, although it is representedI as consisting of a block of insulating material as 10 made from-any of the suitable substances or compositionsv now commonly employed for this purpose. A switch of the type shown comprises a switch member or blade carrier as 11 and a rocker as 12, both these parts being sustained by a spindle as 13 which in the construction shown is supported by a bracket asI 14 situated in the chamber or hollow of the block 10 and fastened therein in some suitable manner for instance by the screws 15 extending through the bottom or inner portion of the block or supporting body 10 and tapped into the. elongated base portion of the bracket 14, the side branches of which directly support4 the spindley 13 to which reference has been made. The switch member or blade carrier 11 and the rocker 12 which coacts therewith are common in this art, and therefore it is needless for me to describe the same in detail, it being well understoodthat when the rocker 12 is shifted in one direction, the switch member 11 will be operated to vopen the circuit controlled by the switch, while when said rocker is move in the opposite direction the circuit will be closed, all as will be well understood, for which reason it is needless for me to describe the same. As a means for operating the rocker the levers 16 and 17 are shown, thelever 16 being out while the lever 17 is in, both of them as will be clear having an operative connection'with the rocker as for example by providing said levers 16 and 17 with offsets 18 slotted to .'rec'eive-lateral extensions o f the rocker 19, this providing one simple way of uniting the respective levers 16 and 17 :with the rocker 12. The levers 16 and 17 are provided with heads 2 0 by which Said levers can be operated, and these heads or their equivalents may vary as to character each of them, however, having a V-notch 21 to receive a key as will hereinafter appear, the side walls of the notches converging downwardly to facilitate the operation of said levers by such a key.

The supporting member or bracket 14 in the construction ,shown bears a plate as 22, the side arms or branches of said brackets being cut away near their upper ends to form the projections 23 which extend y through parallel, elongated slots in the plate 22 near opposite lsides thereof. Owing to the fact that the side arms of Said bracket are thusr cut away there are formed shoulders as 24 at opposite sides of the lprojections 23 upon which the plate 22 rests. The plate 22 is provided with pendent or inwardly extending flanges 25 preferably formed integral therewith and arranged in pairs at its opposite sides and which are divided or slotted as at 26 to receive the laterally extending arms 27 on the bodies of the respective levers 16 and 17 so as to accurately guide said levers as they move inwardly and outwardly, the terminals of said arms or lateral extensions 27 being bent upon themselves as at 28 to fit against the outer faces of the respective flanges or wings to thereby limit or prevent side motion of the two levers. It should also be stated that the plate 22 is perforated near its opposite ends as at 29 for the passage ofthe levers 16 or at least the head or upper portions of said levers, each-lever when in its outward position extending outwardly beyond the plate 22 through a coperating hole or perforation 29.

Fitted against the plate 22 is a body of insulation and which as shown consists of the sheet 30 having holes or perforations 3] near its opposite ends a trifle larger in diameter' than the holes or perforations 29, although the axes of the respective holes are in coincidence. This insulating sheet 30 has `at or near its side edges elongated slots as 32 to receive the reduced portions of the extensions 23 to which .I have already referred, these extensions 23 serving to steady the plate v22 and the sheet of insulation, the width of which latter is approximately equal to the width of the chamber of the supporting body 10. The insulating sheet 30 is shown provided at its corners with tongues 33 which are'deflected downward and which practically close theopenings in the block 10 through which the lead wires (not shown) extend to therebyaid in making the switch safe. Theplate 22 supports the slotted members 34 and 35,. said slotted members being shown as disks or buttons the inwardly extending annular flanges of which fit directly against said plate and closely within the openings 31, said slotted members or disks 34 being held in place by an interlocked con nection with the plate 24 for example by providing said slotted members or disks with bent lugs as 36 o-f approximately L- shape and which closely lit the slots 26, this providing a simple means of preventing the buttons from turning. The slots in the buttons or disks 34 and 35 are shaped to receive a specific kind of key, and by passing such a key through either of the slots, the lever (either 16 or 17) which operates the switch can be operated, said lever being thrust inward by a push on said key, such as that shown in Fig. 5 and designated by 37. Fitted against the insulating sheet 30 is a bar or plate 38, this bar or plate having openings between its ends to receive the two buttons 34 and 35 and being also fastened to the block 10 by screws as 39. The plate or bar 38 which is also known as a yoke near its opposite ends is fitted in channels or grooves 40 in the outer face of the block or supporting body 10. In mounting the switch the block 10 is set in an opening or chamber formed in the part with which it is associated and the terminal portions of the plate 38 are countersunk usually in such supporting part of whatever character the same may be and are fastened therein in some suitable manner by screws or otherwise.

What I claim is:

l. A switch comprising a rocker, a lever for operating said rocker, and a plate having an opening through which said lever is adapted to extend, said plate having inwardly extending slotted flanges, the lever having arms extending through the slots of said flanges, the outer ends of said arms being bent on themselves to engage the outer faces of said flanges. v

2. A switch comprising a rocker, a lever for operating said rocker, and a pair of relatively fixed slotted members, said lever having laterally extending arms extending through the slots of said slotted members, the outer ends`of said arms being bent to engage the outer surfaces of said slotted members.

3. A switch comprising a supporting block, a rocker in the block, a plate also in the block, a lever for operating the rocker, the plate having an opening to receive the lever, a sheet ofA insulating material fitted against the plate, a bar fitting against the insulating material and secured to the block.

4. A switch comprising a supporting block, a rocker in the block, a plate also in the block, a lever for operating the rocker, the plate having an opening to receive the lever, a sheet of insulating material fitted against the plate, and a bar fitting against the insulating material and secured to the block, the latter having channels for lead wires and the insulating material having tongues extending across the inner ends of the channels.

In testimony whereof I affix my signature in presence of two witnesses.

' JOHANN G. PETERSON.

Witnesses:

L. L. MARKEL, F. E. ANDERSON.

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